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Google Cloud Storage (gcs) dependencies (2)

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Add files of new dependencies to Godeps/_workspace

Signed-off-by: Arthur Baars <arthur@semmle.com>
This commit is contained in:
Arthur Baars 2015-07-20 18:44:35 +01:00
parent 95db61e97f
commit 41e71e9a46
727 changed files with 1076955 additions and 29 deletions
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2
Godeps/_workspace/src/github.com/bradfitz/http2/.gitignore generated vendored Normal file
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*~
h2i/h2i

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Godeps/_workspace/src/github.com/bradfitz/http2/AUTHORS generated vendored Normal file
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# This file is like Go's AUTHORS file: it lists Copyright holders.
# The list of humans who have contributd is in the CONTRIBUTORS file.
#
# To contribute to this project, because it will eventually be folded
# back in to Go itself, you need to submit a CLA:
#
# http://golang.org/doc/contribute.html#copyright
#
# Then you get added to CONTRIBUTORS and you or your company get added
# to the AUTHORS file.
Blake Mizerany <blake.mizerany@gmail.com> github=bmizerany
Daniel Morsing <daniel.morsing@gmail.com> github=DanielMorsing
Gabriel Aszalos <gabriel.aszalos@gmail.com> github=gbbr
Google, Inc.
Keith Rarick <kr@xph.us> github=kr
Matthew Keenan <tank.en.mate@gmail.com> <github@mattkeenan.net> github=mattkeenan
Matt Layher <mdlayher@gmail.com> github=mdlayher
Perry Abbott <perry.j.abbott@gmail.com> github=pabbott0
Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com> github=tatsuhiro-t

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Godeps/_workspace/src/github.com/bradfitz/http2/CONTRIBUTORS generated vendored Normal file
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# This file is like Go's CONTRIBUTORS file: it lists humans.
# The list of copyright holders (which may be companies) are in the AUTHORS file.
#
# To contribute to this project, because it will eventually be folded
# back in to Go itself, you need to submit a CLA:
#
# http://golang.org/doc/contribute.html#copyright
#
# Then you get added to CONTRIBUTORS and you or your company get added
# to the AUTHORS file.
Blake Mizerany <blake.mizerany@gmail.com> github=bmizerany
Brad Fitzpatrick <bradfitz@golang.org> github=bradfitz
Daniel Morsing <daniel.morsing@gmail.com> github=DanielMorsing
Gabriel Aszalos <gabriel.aszalos@gmail.com> github=gbbr
Keith Rarick <kr@xph.us> github=kr
Matthew Keenan <tank.en.mate@gmail.com> <github@mattkeenan.net> github=mattkeenan
Matt Layher <mdlayher@gmail.com> github=mdlayher
Perry Abbott <perry.j.abbott@gmail.com> github=pabbott0
Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com> github=tatsuhiro-t

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Godeps/_workspace/src/github.com/bradfitz/http2/Dockerfile generated vendored Normal file
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#
# This Dockerfile builds a recent curl with HTTP/2 client support, using
# a recent nghttp2 build.
#
# See the Makefile for how to tag it. If Docker and that image is found, the
# Go tests use this curl binary for integration tests.
#
FROM ubuntu:trusty
RUN apt-get update && \
apt-get upgrade -y && \
apt-get install -y git-core build-essential wget
RUN apt-get install -y --no-install-recommends \
autotools-dev libtool pkg-config zlib1g-dev \
libcunit1-dev libssl-dev libxml2-dev libevent-dev \
automake autoconf
# Note: setting NGHTTP2_VER before the git clone, so an old git clone isn't cached:
ENV NGHTTP2_VER af24f8394e43f4
RUN cd /root && git clone https://github.com/tatsuhiro-t/nghttp2.git
WORKDIR /root/nghttp2
RUN git reset --hard $NGHTTP2_VER
RUN autoreconf -i
RUN automake
RUN autoconf
RUN ./configure
RUN make
RUN make install
WORKDIR /root
RUN wget http://curl.haxx.se/download/curl-7.40.0.tar.gz
RUN tar -zxvf curl-7.40.0.tar.gz
WORKDIR /root/curl-7.40.0
RUN ./configure --with-ssl --with-nghttp2=/usr/local
RUN make
RUN make install
RUN ldconfig
CMD ["-h"]
ENTRYPOINT ["/usr/local/bin/curl"]

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Godeps/_workspace/src/github.com/bradfitz/http2/HACKING generated vendored Normal file
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We only accept contributions from users who have gone through Go's
contribution process (signed a CLA).
Please acknowledge whether you have (and use the same email) if
sending a pull request.

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Godeps/_workspace/src/github.com/bradfitz/http2/LICENSE generated vendored Normal file
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Copyright 2014 Google & the Go AUTHORS
Go AUTHORS are:
See https://code.google.com/p/go/source/browse/AUTHORS
Licensed under the terms of Go itself:
https://code.google.com/p/go/source/browse/LICENSE

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curlimage:
docker build -t gohttp2/curl .

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This is a work-in-progress HTTP/2 implementation for Go.
It will eventually live in the Go standard library and won't require
any changes to your code to use. It will just be automatic.
Status:
* The server support is pretty good. A few things are missing
but are being worked on.
* The client work has just started but shares a lot of code
is coming along much quicker.
Docs are at https://godoc.org/github.com/bradfitz/http2
Demo test server at https://http2.golang.org/
Help & bug reports welcome.

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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"errors"
)
// buffer is an io.ReadWriteCloser backed by a fixed size buffer.
// It never allocates, but moves old data as new data is written.
type buffer struct {
buf []byte
r, w int
closed bool
err error // err to return to reader
}
var (
errReadEmpty = errors.New("read from empty buffer")
errWriteClosed = errors.New("write on closed buffer")
errWriteFull = errors.New("write on full buffer")
)
// Read copies bytes from the buffer into p.
// It is an error to read when no data is available.
func (b *buffer) Read(p []byte) (n int, err error) {
n = copy(p, b.buf[b.r:b.w])
b.r += n
if b.closed && b.r == b.w {
err = b.err
} else if b.r == b.w && n == 0 {
err = errReadEmpty
}
return n, err
}
// Len returns the number of bytes of the unread portion of the buffer.
func (b *buffer) Len() int {
return b.w - b.r
}
// Write copies bytes from p into the buffer.
// It is an error to write more data than the buffer can hold.
func (b *buffer) Write(p []byte) (n int, err error) {
if b.closed {
return 0, errWriteClosed
}
// Slide existing data to beginning.
if b.r > 0 && len(p) > len(b.buf)-b.w {
copy(b.buf, b.buf[b.r:b.w])
b.w -= b.r
b.r = 0
}
// Write new data.
n = copy(b.buf[b.w:], p)
b.w += n
if n < len(p) {
err = errWriteFull
}
return n, err
}
// Close marks the buffer as closed. Future calls to Write will
// return an error. Future calls to Read, once the buffer is
// empty, will return err.
func (b *buffer) Close(err error) {
if !b.closed {
b.closed = true
b.err = err
}
}

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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"io"
"reflect"
"testing"
)
var bufferReadTests = []struct {
buf buffer
read, wn int
werr error
wp []byte
wbuf buffer
}{
{
buffer{[]byte{'a', 0}, 0, 1, false, nil},
5, 1, nil, []byte{'a'},
buffer{[]byte{'a', 0}, 1, 1, false, nil},
},
{
buffer{[]byte{'a', 0}, 0, 1, true, io.EOF},
5, 1, io.EOF, []byte{'a'},
buffer{[]byte{'a', 0}, 1, 1, true, io.EOF},
},
{
buffer{[]byte{0, 'a'}, 1, 2, false, nil},
5, 1, nil, []byte{'a'},
buffer{[]byte{0, 'a'}, 2, 2, false, nil},
},
{
buffer{[]byte{0, 'a'}, 1, 2, true, io.EOF},
5, 1, io.EOF, []byte{'a'},
buffer{[]byte{0, 'a'}, 2, 2, true, io.EOF},
},
{
buffer{[]byte{}, 0, 0, false, nil},
5, 0, errReadEmpty, []byte{},
buffer{[]byte{}, 0, 0, false, nil},
},
{
buffer{[]byte{}, 0, 0, true, io.EOF},
5, 0, io.EOF, []byte{},
buffer{[]byte{}, 0, 0, true, io.EOF},
},
}
func TestBufferRead(t *testing.T) {
for i, tt := range bufferReadTests {
read := make([]byte, tt.read)
n, err := tt.buf.Read(read)
if n != tt.wn {
t.Errorf("#%d: wn = %d want %d", i, n, tt.wn)
continue
}
if err != tt.werr {
t.Errorf("#%d: werr = %v want %v", i, err, tt.werr)
continue
}
read = read[:n]
if !reflect.DeepEqual(read, tt.wp) {
t.Errorf("#%d: read = %+v want %+v", i, read, tt.wp)
}
if !reflect.DeepEqual(tt.buf, tt.wbuf) {
t.Errorf("#%d: buf = %+v want %+v", i, tt.buf, tt.wbuf)
}
}
}
var bufferWriteTests = []struct {
buf buffer
write, wn int
werr error
wbuf buffer
}{
{
buf: buffer{
buf: []byte{},
},
wbuf: buffer{
buf: []byte{},
},
},
{
buf: buffer{
buf: []byte{1, 'a'},
},
write: 1,
wn: 1,
wbuf: buffer{
buf: []byte{0, 'a'},
w: 1,
},
},
{
buf: buffer{
buf: []byte{'a', 1},
r: 1,
w: 1,
},
write: 2,
wn: 2,
wbuf: buffer{
buf: []byte{0, 0},
w: 2,
},
},
{
buf: buffer{
buf: []byte{},
r: 1,
closed: true,
},
write: 5,
werr: errWriteClosed,
wbuf: buffer{
buf: []byte{},
r: 1,
closed: true,
},
},
{
buf: buffer{
buf: []byte{},
},
write: 5,
werr: errWriteFull,
wbuf: buffer{
buf: []byte{},
},
},
}
func TestBufferWrite(t *testing.T) {
for i, tt := range bufferWriteTests {
n, err := tt.buf.Write(make([]byte, tt.write))
if n != tt.wn {
t.Errorf("#%d: wrote %d bytes; want %d", i, n, tt.wn)
continue
}
if err != tt.werr {
t.Errorf("#%d: error = %v; want %v", i, err, tt.werr)
continue
}
if !reflect.DeepEqual(tt.buf, tt.wbuf) {
t.Errorf("#%d: buf = %+v; want %+v", i, tt.buf, tt.wbuf)
}
}
}

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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import "fmt"
// An ErrCode is an unsigned 32-bit error code as defined in the HTTP/2 spec.
type ErrCode uint32
const (
ErrCodeNo ErrCode = 0x0
ErrCodeProtocol ErrCode = 0x1
ErrCodeInternal ErrCode = 0x2
ErrCodeFlowControl ErrCode = 0x3
ErrCodeSettingsTimeout ErrCode = 0x4
ErrCodeStreamClosed ErrCode = 0x5
ErrCodeFrameSize ErrCode = 0x6
ErrCodeRefusedStream ErrCode = 0x7
ErrCodeCancel ErrCode = 0x8
ErrCodeCompression ErrCode = 0x9
ErrCodeConnect ErrCode = 0xa
ErrCodeEnhanceYourCalm ErrCode = 0xb
ErrCodeInadequateSecurity ErrCode = 0xc
ErrCodeHTTP11Required ErrCode = 0xd
)
var errCodeName = map[ErrCode]string{
ErrCodeNo: "NO_ERROR",
ErrCodeProtocol: "PROTOCOL_ERROR",
ErrCodeInternal: "INTERNAL_ERROR",
ErrCodeFlowControl: "FLOW_CONTROL_ERROR",
ErrCodeSettingsTimeout: "SETTINGS_TIMEOUT",
ErrCodeStreamClosed: "STREAM_CLOSED",
ErrCodeFrameSize: "FRAME_SIZE_ERROR",
ErrCodeRefusedStream: "REFUSED_STREAM",
ErrCodeCancel: "CANCEL",
ErrCodeCompression: "COMPRESSION_ERROR",
ErrCodeConnect: "CONNECT_ERROR",
ErrCodeEnhanceYourCalm: "ENHANCE_YOUR_CALM",
ErrCodeInadequateSecurity: "INADEQUATE_SECURITY",
ErrCodeHTTP11Required: "HTTP_1_1_REQUIRED",
}
func (e ErrCode) String() string {
if s, ok := errCodeName[e]; ok {
return s
}
return fmt.Sprintf("unknown error code 0x%x", uint32(e))
}
// ConnectionError is an error that results in the termination of the
// entire connection.
type ConnectionError ErrCode
func (e ConnectionError) Error() string { return fmt.Sprintf("connection error: %s", ErrCode(e)) }
// StreamError is an error that only affects one stream within an
// HTTP/2 connection.
type StreamError struct {
StreamID uint32
Code ErrCode
}
func (e StreamError) Error() string {
return fmt.Sprintf("stream error: stream ID %d; %v", e.StreamID, e.Code)
}
// 6.9.1 The Flow Control Window
// "If a sender receives a WINDOW_UPDATE that causes a flow control
// window to exceed this maximum it MUST terminate either the stream
// or the connection, as appropriate. For streams, [...]; for the
// connection, a GOAWAY frame with a FLOW_CONTROL_ERROR code."
type goAwayFlowError struct{}
func (goAwayFlowError) Error() string { return "connection exceeded flow control window size" }

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import "testing"
func TestErrCodeString(t *testing.T) {
tests := []struct {
err ErrCode
want string
}{
{ErrCodeProtocol, "PROTOCOL_ERROR"},
{0xd, "HTTP_1_1_REQUIRED"},
{0xf, "unknown error code 0xf"},
}
for i, tt := range tests {
got := tt.err.String()
if got != tt.want {
t.Errorf("%d. Error = %q; want %q", i, got, tt.want)
}
}
}

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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Flow control
package http2
// flow is the flow control window's size.
type flow struct {
// n is the number of DATA bytes we're allowed to send.
// A flow is kept both on a conn and a per-stream.
n int32
// conn points to the shared connection-level flow that is
// shared by all streams on that conn. It is nil for the flow
// that's on the conn directly.
conn *flow
}
func (f *flow) setConnFlow(cf *flow) { f.conn = cf }
func (f *flow) available() int32 {
n := f.n
if f.conn != nil && f.conn.n < n {
n = f.conn.n
}
return n
}
func (f *flow) take(n int32) {
if n > f.available() {
panic("internal error: took too much")
}
f.n -= n
if f.conn != nil {
f.conn.n -= n
}
}
// add adds n bytes (positive or negative) to the flow control window.
// It returns false if the sum would exceed 2^31-1.
func (f *flow) add(n int32) bool {
remain := (1<<31 - 1) - f.n
if n > remain {
return false
}
f.n += n
return true
}

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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import "testing"
func TestFlow(t *testing.T) {
var st flow
var conn flow
st.add(3)
conn.add(2)
if got, want := st.available(), int32(3); got != want {
t.Errorf("available = %d; want %d", got, want)
}
st.setConnFlow(&conn)
if got, want := st.available(), int32(2); got != want {
t.Errorf("after parent setup, available = %d; want %d", got, want)
}
st.take(2)
if got, want := conn.available(), int32(0); got != want {
t.Errorf("after taking 2, conn = %d; want %d", got, want)
}
if got, want := st.available(), int32(0); got != want {
t.Errorf("after taking 2, stream = %d; want %d", got, want)
}
}
func TestFlowAdd(t *testing.T) {
var f flow
if !f.add(1) {
t.Fatal("failed to add 1")
}
if !f.add(-1) {
t.Fatal("failed to add -1")
}
if got, want := f.available(), int32(0); got != want {
t.Fatalf("size = %d; want %d", got, want)
}
if !f.add(1<<31 - 1) {
t.Fatal("failed to add 2^31-1")
}
if got, want := f.available(), int32(1<<31-1); got != want {
t.Fatalf("size = %d; want %d", got, want)
}
if f.add(1) {
t.Fatal("adding 1 to max shouldn't be allowed")
}
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package http2
import (
"bytes"
"reflect"
"strings"
"testing"
"unsafe"
)
func testFramer() (*Framer, *bytes.Buffer) {
buf := new(bytes.Buffer)
return NewFramer(buf, buf), buf
}
func TestFrameSizes(t *testing.T) {
// Catch people rearranging the FrameHeader fields.
if got, want := int(unsafe.Sizeof(FrameHeader{})), 12; got != want {
t.Errorf("FrameHeader size = %d; want %d", got, want)
}
}
func TestFrameTypeString(t *testing.T) {
tests := []struct {
ft FrameType
want string
}{
{FrameData, "DATA"},
{FramePing, "PING"},
{FrameGoAway, "GOAWAY"},
{0xf, "UNKNOWN_FRAME_TYPE_15"},
}
for i, tt := range tests {
got := tt.ft.String()
if got != tt.want {
t.Errorf("%d. String(FrameType %d) = %q; want %q", i, int(tt.ft), got, tt.want)
}
}
}
func TestWriteRST(t *testing.T) {
fr, buf := testFramer()
var streamID uint32 = 1<<24 + 2<<16 + 3<<8 + 4
var errCode uint32 = 7<<24 + 6<<16 + 5<<8 + 4
fr.WriteRSTStream(streamID, ErrCode(errCode))
const wantEnc = "\x00\x00\x04\x03\x00\x01\x02\x03\x04\x07\x06\x05\x04"
if buf.String() != wantEnc {
t.Errorf("encoded as %q; want %q", buf.Bytes(), wantEnc)
}
f, err := fr.ReadFrame()
if err != nil {
t.Fatal(err)
}
want := &RSTStreamFrame{
FrameHeader: FrameHeader{
valid: true,
Type: 0x3,
Flags: 0x0,
Length: 0x4,
StreamID: 0x1020304,
},
ErrCode: 0x7060504,
}
if !reflect.DeepEqual(f, want) {
t.Errorf("parsed back %#v; want %#v", f, want)
}
}
func TestWriteData(t *testing.T) {
fr, buf := testFramer()
var streamID uint32 = 1<<24 + 2<<16 + 3<<8 + 4
data := []byte("ABC")
fr.WriteData(streamID, true, data)
const wantEnc = "\x00\x00\x03\x00\x01\x01\x02\x03\x04ABC"
if buf.String() != wantEnc {
t.Errorf("encoded as %q; want %q", buf.Bytes(), wantEnc)
}
f, err := fr.ReadFrame()
if err != nil {
t.Fatal(err)
}
df, ok := f.(*DataFrame)
if !ok {
t.Fatalf("got %T; want *DataFrame", f)
}
if !bytes.Equal(df.Data(), data) {
t.Errorf("got %q; want %q", df.Data(), data)
}
if f.Header().Flags&1 == 0 {
t.Errorf("didn't see END_STREAM flag")
}
}
func TestWriteHeaders(t *testing.T) {
tests := []struct {
name string
p HeadersFrameParam
wantEnc string
wantFrame *HeadersFrame
}{
{
"basic",
HeadersFrameParam{
StreamID: 42,
BlockFragment: []byte("abc"),
Priority: PriorityParam{},
},
"\x00\x00\x03\x01\x00\x00\x00\x00*abc",
&HeadersFrame{
FrameHeader: FrameHeader{
valid: true,
StreamID: 42,
Type: FrameHeaders,
Length: uint32(len("abc")),
},
Priority: PriorityParam{},
headerFragBuf: []byte("abc"),
},
},
{
"basic + end flags",
HeadersFrameParam{
StreamID: 42,
BlockFragment: []byte("abc"),
EndStream: true,
EndHeaders: true,
Priority: PriorityParam{},
},
"\x00\x00\x03\x01\x05\x00\x00\x00*abc",
&HeadersFrame{
FrameHeader: FrameHeader{
valid: true,
StreamID: 42,
Type: FrameHeaders,
Flags: FlagHeadersEndStream | FlagHeadersEndHeaders,
Length: uint32(len("abc")),
},
Priority: PriorityParam{},
headerFragBuf: []byte("abc"),
},
},
{
"with padding",
HeadersFrameParam{
StreamID: 42,
BlockFragment: []byte("abc"),
EndStream: true,
EndHeaders: true,
PadLength: 5,
Priority: PriorityParam{},
},
"\x00\x00\t\x01\r\x00\x00\x00*\x05abc\x00\x00\x00\x00\x00",
&HeadersFrame{
FrameHeader: FrameHeader{
valid: true,
StreamID: 42,
Type: FrameHeaders,
Flags: FlagHeadersEndStream | FlagHeadersEndHeaders | FlagHeadersPadded,
Length: uint32(1 + len("abc") + 5), // pad length + contents + padding
},
Priority: PriorityParam{},
headerFragBuf: []byte("abc"),
},
},
{
"with priority",
HeadersFrameParam{
StreamID: 42,
BlockFragment: []byte("abc"),
EndStream: true,
EndHeaders: true,
PadLength: 2,
Priority: PriorityParam{
StreamDep: 15,
Exclusive: true,
Weight: 127,
},
},
"\x00\x00\v\x01-\x00\x00\x00*\x02\x80\x00\x00\x0f\u007fabc\x00\x00",
&HeadersFrame{
FrameHeader: FrameHeader{
valid: true,
StreamID: 42,
Type: FrameHeaders,
Flags: FlagHeadersEndStream | FlagHeadersEndHeaders | FlagHeadersPadded | FlagHeadersPriority,
Length: uint32(1 + 5 + len("abc") + 2), // pad length + priority + contents + padding
},
Priority: PriorityParam{
StreamDep: 15,
Exclusive: true,
Weight: 127,
},
headerFragBuf: []byte("abc"),
},
},
}
for _, tt := range tests {
fr, buf := testFramer()
if err := fr.WriteHeaders(tt.p); err != nil {
t.Errorf("test %q: %v", tt.name, err)
continue
}
if buf.String() != tt.wantEnc {
t.Errorf("test %q: encoded %q; want %q", tt.name, buf.Bytes(), tt.wantEnc)
}
f, err := fr.ReadFrame()
if err != nil {
t.Errorf("test %q: failed to read the frame back: %v", tt.name, err)
continue
}
if !reflect.DeepEqual(f, tt.wantFrame) {
t.Errorf("test %q: mismatch.\n got: %#v\nwant: %#v\n", tt.name, f, tt.wantFrame)
}
}
}
func TestWriteContinuation(t *testing.T) {
const streamID = 42
tests := []struct {
name string
end bool
frag []byte
wantFrame *ContinuationFrame
}{
{
"not end",
false,
[]byte("abc"),
&ContinuationFrame{
FrameHeader: FrameHeader{
valid: true,
StreamID: streamID,
Type: FrameContinuation,
Length: uint32(len("abc")),
},
headerFragBuf: []byte("abc"),
},
},
{
"end",
true,
[]byte("def"),
&ContinuationFrame{
FrameHeader: FrameHeader{
valid: true,
StreamID: streamID,
Type: FrameContinuation,
Flags: FlagContinuationEndHeaders,
Length: uint32(len("def")),
},
headerFragBuf: []byte("def"),
},
},
}
for _, tt := range tests {
fr, _ := testFramer()
if err := fr.WriteContinuation(streamID, tt.end, tt.frag); err != nil {
t.Errorf("test %q: %v", tt.name, err)
continue
}
f, err := fr.ReadFrame()
if err != nil {
t.Errorf("test %q: failed to read the frame back: %v", tt.name, err)
continue
}
if !reflect.DeepEqual(f, tt.wantFrame) {
t.Errorf("test %q: mismatch.\n got: %#v\nwant: %#v\n", tt.name, f, tt.wantFrame)
}
}
}
func TestWritePriority(t *testing.T) {
const streamID = 42
tests := []struct {
name string
priority PriorityParam
wantFrame *PriorityFrame
}{
{
"not exclusive",
PriorityParam{
StreamDep: 2,
Exclusive: false,
Weight: 127,
},
&PriorityFrame{
FrameHeader{
valid: true,
StreamID: streamID,
Type: FramePriority,
Length: 5,
},
PriorityParam{
StreamDep: 2,
Exclusive: false,
Weight: 127,
},
},
},
{
"exclusive",
PriorityParam{
StreamDep: 3,
Exclusive: true,
Weight: 77,
},
&PriorityFrame{
FrameHeader{
valid: true,
StreamID: streamID,
Type: FramePriority,
Length: 5,
},
PriorityParam{
StreamDep: 3,
Exclusive: true,
Weight: 77,
},
},
},
}
for _, tt := range tests {
fr, _ := testFramer()
if err := fr.WritePriority(streamID, tt.priority); err != nil {
t.Errorf("test %q: %v", tt.name, err)
continue
}
f, err := fr.ReadFrame()
if err != nil {
t.Errorf("test %q: failed to read the frame back: %v", tt.name, err)
continue
}
if !reflect.DeepEqual(f, tt.wantFrame) {
t.Errorf("test %q: mismatch.\n got: %#v\nwant: %#v\n", tt.name, f, tt.wantFrame)
}
}
}
func TestWriteSettings(t *testing.T) {
fr, buf := testFramer()
settings := []Setting{{1, 2}, {3, 4}}
fr.WriteSettings(settings...)
const wantEnc = "\x00\x00\f\x04\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x02\x00\x03\x00\x00\x00\x04"
if buf.String() != wantEnc {
t.Errorf("encoded as %q; want %q", buf.Bytes(), wantEnc)
}
f, err := fr.ReadFrame()
if err != nil {
t.Fatal(err)
}
sf, ok := f.(*SettingsFrame)
if !ok {
t.Fatalf("Got a %T; want a SettingsFrame", f)
}
var got []Setting
sf.ForeachSetting(func(s Setting) error {
got = append(got, s)
valBack, ok := sf.Value(s.ID)
if !ok || valBack != s.Val {
t.Errorf("Value(%d) = %v, %v; want %v, true", s.ID, valBack, ok, s.Val)
}
return nil
})
if !reflect.DeepEqual(settings, got) {
t.Errorf("Read settings %+v != written settings %+v", got, settings)
}
}
func TestWriteSettingsAck(t *testing.T) {
fr, buf := testFramer()
fr.WriteSettingsAck()
const wantEnc = "\x00\x00\x00\x04\x01\x00\x00\x00\x00"
if buf.String() != wantEnc {
t.Errorf("encoded as %q; want %q", buf.Bytes(), wantEnc)
}
}
func TestWriteWindowUpdate(t *testing.T) {
fr, buf := testFramer()
const streamID = 1<<24 + 2<<16 + 3<<8 + 4
const incr = 7<<24 + 6<<16 + 5<<8 + 4
if err := fr.WriteWindowUpdate(streamID, incr); err != nil {
t.Fatal(err)
}
const wantEnc = "\x00\x00\x04\x08\x00\x01\x02\x03\x04\x07\x06\x05\x04"
if buf.String() != wantEnc {
t.Errorf("encoded as %q; want %q", buf.Bytes(), wantEnc)
}
f, err := fr.ReadFrame()
if err != nil {
t.Fatal(err)
}
want := &WindowUpdateFrame{
FrameHeader: FrameHeader{
valid: true,
Type: 0x8,
Flags: 0x0,
Length: 0x4,
StreamID: 0x1020304,
},
Increment: 0x7060504,
}
if !reflect.DeepEqual(f, want) {
t.Errorf("parsed back %#v; want %#v", f, want)
}
}
func TestWritePing(t *testing.T) { testWritePing(t, false) }
func TestWritePingAck(t *testing.T) { testWritePing(t, true) }
func testWritePing(t *testing.T, ack bool) {
fr, buf := testFramer()
if err := fr.WritePing(ack, [8]byte{1, 2, 3, 4, 5, 6, 7, 8}); err != nil {
t.Fatal(err)
}
var wantFlags Flags
if ack {
wantFlags = FlagPingAck
}
var wantEnc = "\x00\x00\x08\x06" + string(wantFlags) + "\x00\x00\x00\x00" + "\x01\x02\x03\x04\x05\x06\x07\x08"
if buf.String() != wantEnc {
t.Errorf("encoded as %q; want %q", buf.Bytes(), wantEnc)
}
f, err := fr.ReadFrame()
if err != nil {
t.Fatal(err)
}
want := &PingFrame{
FrameHeader: FrameHeader{
valid: true,
Type: 0x6,
Flags: wantFlags,
Length: 0x8,
StreamID: 0,
},
Data: [8]byte{1, 2, 3, 4, 5, 6, 7, 8},
}
if !reflect.DeepEqual(f, want) {
t.Errorf("parsed back %#v; want %#v", f, want)
}
}
func TestReadFrameHeader(t *testing.T) {
tests := []struct {
in string
want FrameHeader
}{
{in: "\x00\x00\x00" + "\x00" + "\x00" + "\x00\x00\x00\x00", want: FrameHeader{}},
{in: "\x01\x02\x03" + "\x04" + "\x05" + "\x06\x07\x08\x09", want: FrameHeader{
Length: 66051, Type: 4, Flags: 5, StreamID: 101124105,
}},
// Ignore high bit:
{in: "\xff\xff\xff" + "\xff" + "\xff" + "\xff\xff\xff\xff", want: FrameHeader{
Length: 16777215, Type: 255, Flags: 255, StreamID: 2147483647}},
{in: "\xff\xff\xff" + "\xff" + "\xff" + "\x7f\xff\xff\xff", want: FrameHeader{
Length: 16777215, Type: 255, Flags: 255, StreamID: 2147483647}},
}
for i, tt := range tests {
got, err := readFrameHeader(make([]byte, 9), strings.NewReader(tt.in))
if err != nil {
t.Errorf("%d. readFrameHeader(%q) = %v", i, tt.in, err)
continue
}
tt.want.valid = true
if got != tt.want {
t.Errorf("%d. readFrameHeader(%q) = %+v; want %+v", i, tt.in, got, tt.want)
}
}
}
func TestReadWriteFrameHeader(t *testing.T) {
tests := []struct {
len uint32
typ FrameType
flags Flags
streamID uint32
}{
{len: 0, typ: 255, flags: 1, streamID: 0},
{len: 0, typ: 255, flags: 1, streamID: 1},
{len: 0, typ: 255, flags: 1, streamID: 255},
{len: 0, typ: 255, flags: 1, streamID: 256},
{len: 0, typ: 255, flags: 1, streamID: 65535},
{len: 0, typ: 255, flags: 1, streamID: 65536},
{len: 0, typ: 1, flags: 255, streamID: 1},
{len: 255, typ: 1, flags: 255, streamID: 1},
{len: 256, typ: 1, flags: 255, streamID: 1},
{len: 65535, typ: 1, flags: 255, streamID: 1},
{len: 65536, typ: 1, flags: 255, streamID: 1},
{len: 16777215, typ: 1, flags: 255, streamID: 1},
}
for _, tt := range tests {
fr, buf := testFramer()
fr.startWrite(tt.typ, tt.flags, tt.streamID)
fr.writeBytes(make([]byte, tt.len))
fr.endWrite()
fh, err := ReadFrameHeader(buf)
if err != nil {
t.Errorf("ReadFrameHeader(%+v) = %v", tt, err)
continue
}
if fh.Type != tt.typ || fh.Flags != tt.flags || fh.Length != tt.len || fh.StreamID != tt.streamID {
t.Errorf("ReadFrameHeader(%+v) = %+v; mismatch", tt, fh)
}
}
}
func TestWriteTooLargeFrame(t *testing.T) {
fr, _ := testFramer()
fr.startWrite(0, 1, 1)
fr.writeBytes(make([]byte, 1<<24))
err := fr.endWrite()
if err != ErrFrameTooLarge {
t.Errorf("endWrite = %v; want errFrameTooLarge", err)
}
}
func TestWriteGoAway(t *testing.T) {
const debug = "foo"
fr, buf := testFramer()
if err := fr.WriteGoAway(0x01020304, 0x05060708, []byte(debug)); err != nil {
t.Fatal(err)
}
const wantEnc = "\x00\x00\v\a\x00\x00\x00\x00\x00\x01\x02\x03\x04\x05\x06\x07\x08" + debug
if buf.String() != wantEnc {
t.Errorf("encoded as %q; want %q", buf.Bytes(), wantEnc)
}
f, err := fr.ReadFrame()
if err != nil {
t.Fatal(err)
}
want := &GoAwayFrame{
FrameHeader: FrameHeader{
valid: true,
Type: 0x7,
Flags: 0,
Length: uint32(4 + 4 + len(debug)),
StreamID: 0,
},
LastStreamID: 0x01020304,
ErrCode: 0x05060708,
debugData: []byte(debug),
}
if !reflect.DeepEqual(f, want) {
t.Fatalf("parsed back:\n%#v\nwant:\n%#v", f, want)
}
if got := string(f.(*GoAwayFrame).DebugData()); got != debug {
t.Errorf("debug data = %q; want %q", got, debug)
}
}
func TestWritePushPromise(t *testing.T) {
pp := PushPromiseParam{
StreamID: 42,
PromiseID: 42,
BlockFragment: []byte("abc"),
}
fr, buf := testFramer()
if err := fr.WritePushPromise(pp); err != nil {
t.Fatal(err)
}
const wantEnc = "\x00\x00\x07\x05\x00\x00\x00\x00*\x00\x00\x00*abc"
if buf.String() != wantEnc {
t.Errorf("encoded as %q; want %q", buf.Bytes(), wantEnc)
}
f, err := fr.ReadFrame()
if err != nil {
t.Fatal(err)
}
_, ok := f.(*PushPromiseFrame)
if !ok {
t.Fatalf("got %T; want *PushPromiseFrame", f)
}
want := &PushPromiseFrame{
FrameHeader: FrameHeader{
valid: true,
Type: 0x5,
Flags: 0x0,
Length: 0x7,
StreamID: 42,
},
PromiseID: 42,
headerFragBuf: []byte("abc"),
}
if !reflect.DeepEqual(f, want) {
t.Fatalf("parsed back:\n%#v\nwant:\n%#v", f, want)
}
}

173
Godeps/_workspace/src/github.com/bradfitz/http2/gotrack.go generated vendored Normal file
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@ -0,0 +1,173 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Defensive debug-only utility to track that functions run on the
// goroutine that they're supposed to.
package http2
import (
"bytes"
"errors"
"fmt"
"os"
"runtime"
"strconv"
"sync"
)
var DebugGoroutines = os.Getenv("DEBUG_HTTP2_GOROUTINES") == "1"
type goroutineLock uint64
func newGoroutineLock() goroutineLock {
if !DebugGoroutines {
return 0
}
return goroutineLock(curGoroutineID())
}
func (g goroutineLock) check() {
if !DebugGoroutines {
return
}
if curGoroutineID() != uint64(g) {
panic("running on the wrong goroutine")
}
}
func (g goroutineLock) checkNotOn() {
if !DebugGoroutines {
return
}
if curGoroutineID() == uint64(g) {
panic("running on the wrong goroutine")
}
}
var goroutineSpace = []byte("goroutine ")
func curGoroutineID() uint64 {
bp := littleBuf.Get().(*[]byte)
defer littleBuf.Put(bp)
b := *bp
b = b[:runtime.Stack(b, false)]
// Parse the 4707 out of "goroutine 4707 ["
b = bytes.TrimPrefix(b, goroutineSpace)
i := bytes.IndexByte(b, ' ')
if i < 0 {
panic(fmt.Sprintf("No space found in %q", b))
}
b = b[:i]
n, err := parseUintBytes(b, 10, 64)
if err != nil {
panic(fmt.Sprintf("Failed to parse goroutine ID out of %q: %v", b, err))
}
return n
}
var littleBuf = sync.Pool{
New: func() interface{} {
buf := make([]byte, 64)
return &buf
},
}
// parseUintBytes is like strconv.ParseUint, but using a []byte.
func parseUintBytes(s []byte, base int, bitSize int) (n uint64, err error) {
var cutoff, maxVal uint64
if bitSize == 0 {
bitSize = int(strconv.IntSize)
}
s0 := s
switch {
case len(s) < 1:
err = strconv.ErrSyntax
goto Error
case 2 <= base && base <= 36:
// valid base; nothing to do
case base == 0:
// Look for octal, hex prefix.
switch {
case s[0] == '0' && len(s) > 1 && (s[1] == 'x' || s[1] == 'X'):
base = 16
s = s[2:]
if len(s) < 1 {
err = strconv.ErrSyntax
goto Error
}
case s[0] == '0':
base = 8
default:
base = 10
}
default:
err = errors.New("invalid base " + strconv.Itoa(base))
goto Error
}
n = 0
cutoff = cutoff64(base)
maxVal = 1<<uint(bitSize) - 1
for i := 0; i < len(s); i++ {
var v byte
d := s[i]
switch {
case '0' <= d && d <= '9':
v = d - '0'
case 'a' <= d && d <= 'z':
v = d - 'a' + 10
case 'A' <= d && d <= 'Z':
v = d - 'A' + 10
default:
n = 0
err = strconv.ErrSyntax
goto Error
}
if int(v) >= base {
n = 0
err = strconv.ErrSyntax
goto Error
}
if n >= cutoff {
// n*base overflows
n = 1<<64 - 1
err = strconv.ErrRange
goto Error
}
n *= uint64(base)
n1 := n + uint64(v)
if n1 < n || n1 > maxVal {
// n+v overflows
n = 1<<64 - 1
err = strconv.ErrRange
goto Error
}
n = n1
}
return n, nil
Error:
return n, &strconv.NumError{Func: "ParseUint", Num: string(s0), Err: err}
}
// Return the first number n such that n*base >= 1<<64.
func cutoff64(base int) uint64 {
if base < 2 {
return 0
}
return (1<<64-1)/uint64(base) + 1
}

33
Godeps/_workspace/src/github.com/bradfitz/http2/gotrack_test.go generated vendored Normal file
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@ -0,0 +1,33 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"fmt"
"strings"
"testing"
)
func TestGoroutineLock(t *testing.T) {
DebugGoroutines = true
g := newGoroutineLock()
g.check()
sawPanic := make(chan interface{})
go func() {
defer func() { sawPanic <- recover() }()
g.check() // should panic
}()
e := <-sawPanic
if e == nil {
t.Fatal("did not see panic from check in other goroutine")
}
if !strings.Contains(fmt.Sprint(e), "wrong goroutine") {
t.Errorf("expected on see panic about running on the wrong goroutine; got %v", e)
}
}

5
Godeps/_workspace/src/github.com/bradfitz/http2/h2demo/.gitignore generated vendored Normal file
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@ -0,0 +1,5 @@
h2demo
h2demo.linux
client-id.dat
client-secret.dat
token.dat

5
Godeps/_workspace/src/github.com/bradfitz/http2/h2demo/Makefile generated vendored Normal file
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@ -0,0 +1,5 @@
h2demo.linux: h2demo.go
GOOS=linux go build --tags=h2demo -o h2demo.linux .
upload: h2demo.linux
cat h2demo.linux | go run launch.go --write_object=http2-demo-server-tls/h2demo --write_object_is_public

16
Godeps/_workspace/src/github.com/bradfitz/http2/h2demo/README generated vendored Normal file
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@ -0,0 +1,16 @@
Client:
-- Firefox nightly with about:config network.http.spdy.enabled.http2draft set true
-- Chrome: go to chrome://flags/#enable-spdy4, save and restart (button at bottom)
Make CA:
$ openssl genrsa -out rootCA.key 2048
$ openssl req -x509 -new -nodes -key rootCA.key -days 1024 -out rootCA.pem
... install that to Firefox
Make cert:
$ openssl genrsa -out server.key 2048
$ openssl req -new -key server.key -out server.csr
$ openssl x509 -req -in server.csr -CA rootCA.pem -CAkey rootCA.key -CAcreateserial -out server.crt -days 500

426
Godeps/_workspace/src/github.com/bradfitz/http2/h2demo/h2demo.go generated vendored Normal file
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@ -0,0 +1,426 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// +build h2demo
package main
import (
"bytes"
"crypto/tls"
"flag"
"fmt"
"hash/crc32"
"image"
"image/jpeg"
"io"
"io/ioutil"
"log"
"net"
"net/http"
"os/exec"
"path"
"regexp"
"runtime"
"strconv"
"strings"
"sync"
"time"
"camlistore.org/pkg/googlestorage"
"camlistore.org/pkg/singleflight"
"github.com/bradfitz/http2"
)
var (
openFirefox = flag.Bool("openff", false, "Open Firefox")
addr = flag.String("addr", "localhost:4430", "TLS address to listen on")
httpAddr = flag.String("httpaddr", "", "If non-empty, address to listen for regular HTTP on")
prod = flag.Bool("prod", false, "Whether to configure itself to be the production http2.golang.org server.")
)
func homeOldHTTP(w http.ResponseWriter, r *http.Request) {
io.WriteString(w, `<html>
<body>
<h1>Go + HTTP/2</h1>
<p>Welcome to <a href="https://golang.org/">the Go language</a>'s <a href="https://http2.github.io/">HTTP/2</a> demo & interop server.</p>
<p>Unfortunately, you're <b>not</b> using HTTP/2 right now. To do so:</p>
<ul>
<li>Use Firefox Nightly or go to <b>about:config</b> and enable "network.http.spdy.enabled.http2draft"</li>
<li>Use Google Chrome Canary and/or go to <b>chrome://flags/#enable-spdy4</b> to <i>Enable SPDY/4</i> (Chrome's name for HTTP/2)</li>
</ul>
<p>See code & instructions for connecting at <a href="https://github.com/bradfitz/http2">https://github.com/bradfitz/http2</a>.</p>
</body></html>`)
}
func home(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/" {
http.NotFound(w, r)
return
}
io.WriteString(w, `<html>
<body>
<h1>Go + HTTP/2</h1>
<p>Welcome to <a href="https://golang.org/">the Go language</a>'s <a
href="https://http2.github.io/">HTTP/2</a> demo & interop server.</p>
<p>Congratulations, <b>you're using HTTP/2 right now</b>.</p>
<p>This server exists for others in the HTTP/2 community to test their HTTP/2 client implementations and point out flaws in our server.</p>
<p> The code is currently at <a
href="https://github.com/bradfitz/http2">github.com/bradfitz/http2</a>
but will move to the Go standard library at some point in the future
(enabled by default, without users needing to change their code).</p>
<p>Contact info: <i>bradfitz@golang.org</i>, or <a
href="https://github.com/bradfitz/http2/issues">file a bug</a>.</p>
<h2>Handlers for testing</h2>
<ul>
<li>GET <a href="/reqinfo">/reqinfo</a> to dump the request + headers received</li>
<li>GET <a href="/clockstream">/clockstream</a> streams the current time every second</li>
<li>GET <a href="/gophertiles">/gophertiles</a> to see a page with a bunch of images</li>
<li>GET <a href="/file/gopher.png">/file/gopher.png</a> for a small file (does If-Modified-Since, Content-Range, etc)</li>
<li>GET <a href="/file/go.src.tar.gz">/file/go.src.tar.gz</a> for a larger file (~10 MB)</li>
<li>GET <a href="/redirect">/redirect</a> to redirect back to / (this page)</li>
<li>GET <a href="/goroutines">/goroutines</a> to see all active goroutines in this server</li>
<li>PUT something to <a href="/crc32">/crc32</a> to get a count of number of bytes and its CRC-32</li>
</ul>
</body></html>`)
}
func reqInfoHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintf(w, "Method: %s\n", r.Method)
fmt.Fprintf(w, "Protocol: %s\n", r.Proto)
fmt.Fprintf(w, "Host: %s\n", r.Host)
fmt.Fprintf(w, "RemoteAddr: %s\n", r.RemoteAddr)
fmt.Fprintf(w, "RequestURI: %q\n", r.RequestURI)
fmt.Fprintf(w, "URL: %#v\n", r.URL)
fmt.Fprintf(w, "Body.ContentLength: %d (-1 means unknown)\n", r.ContentLength)
fmt.Fprintf(w, "Close: %v (relevant for HTTP/1 only)\n", r.Close)
fmt.Fprintf(w, "TLS: %#v\n", r.TLS)
fmt.Fprintf(w, "\nHeaders:\n")
r.Header.Write(w)
}
func crcHandler(w http.ResponseWriter, r *http.Request) {
if r.Method != "PUT" {
http.Error(w, "PUT required.", 400)
return
}
crc := crc32.NewIEEE()
n, err := io.Copy(crc, r.Body)
if err == nil {
w.Header().Set("Content-Type", "text/plain")
fmt.Fprintf(w, "bytes=%d, CRC32=%x", n, crc.Sum(nil))
}
}
var (
fsGrp singleflight.Group
fsMu sync.Mutex // guards fsCache
fsCache = map[string]http.Handler{}
)
// fileServer returns a file-serving handler that proxies URL.
// It lazily fetches URL on the first access and caches its contents forever.
func fileServer(url string) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
hi, err := fsGrp.Do(url, func() (interface{}, error) {
fsMu.Lock()
if h, ok := fsCache[url]; ok {
fsMu.Unlock()
return h, nil
}
fsMu.Unlock()
res, err := http.Get(url)
if err != nil {
return nil, err
}
defer res.Body.Close()
slurp, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, err
}
modTime := time.Now()
var h http.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
http.ServeContent(w, r, path.Base(url), modTime, bytes.NewReader(slurp))
})
fsMu.Lock()
fsCache[url] = h
fsMu.Unlock()
return h, nil
})
if err != nil {
http.Error(w, err.Error(), 500)
return
}
hi.(http.Handler).ServeHTTP(w, r)
})
}
func clockStreamHandler(w http.ResponseWriter, r *http.Request) {
clientGone := w.(http.CloseNotifier).CloseNotify()
w.Header().Set("Content-Type", "text/plain")
ticker := time.NewTicker(1 * time.Second)
defer ticker.Stop()
fmt.Fprintf(w, "# ~1KB of junk to force browsers to start rendering immediately: \n")
io.WriteString(w, strings.Repeat("# xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\n", 13))
for {
fmt.Fprintf(w, "%v\n", time.Now())
w.(http.Flusher).Flush()
select {
case <-ticker.C:
case <-clientGone:
log.Printf("Client %v disconnected from the clock", r.RemoteAddr)
return
}
}
}
func registerHandlers() {
tiles := newGopherTilesHandler()
mux2 := http.NewServeMux()
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
if r.TLS == nil {
if r.URL.Path == "/gophertiles" {
tiles.ServeHTTP(w, r)
return
}
http.Redirect(w, r, "https://http2.golang.org/", http.StatusFound)
return
}
if r.ProtoMajor == 1 {
if r.URL.Path == "/reqinfo" {
reqInfoHandler(w, r)
return
}
homeOldHTTP(w, r)
return
}
mux2.ServeHTTP(w, r)
})
mux2.HandleFunc("/", home)
mux2.Handle("/file/gopher.png", fileServer("https://golang.org/doc/gopher/frontpage.png"))
mux2.Handle("/file/go.src.tar.gz", fileServer("https://storage.googleapis.com/golang/go1.4.1.src.tar.gz"))
mux2.HandleFunc("/reqinfo", reqInfoHandler)
mux2.HandleFunc("/crc32", crcHandler)
mux2.HandleFunc("/clockstream", clockStreamHandler)
mux2.Handle("/gophertiles", tiles)
mux2.HandleFunc("/redirect", func(w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, "/", http.StatusFound)
})
stripHomedir := regexp.MustCompile(`/(Users|home)/\w+`)
mux2.HandleFunc("/goroutines", func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain; charset=utf-8")
buf := make([]byte, 2<<20)
w.Write(stripHomedir.ReplaceAll(buf[:runtime.Stack(buf, true)], nil))
})
}
func newGopherTilesHandler() http.Handler {
const gopherURL = "https://blog.golang.org/go-programming-language-turns-two_gophers.jpg"
res, err := http.Get(gopherURL)
if err != nil {
log.Fatal(err)
}
if res.StatusCode != 200 {
log.Fatalf("Error fetching %s: %v", gopherURL, res.Status)
}
slurp, err := ioutil.ReadAll(res.Body)
res.Body.Close()
if err != nil {
log.Fatal(err)
}
im, err := jpeg.Decode(bytes.NewReader(slurp))
if err != nil {
if len(slurp) > 1024 {
slurp = slurp[:1024]
}
log.Fatalf("Failed to decode gopher image: %v (got %q)", err, slurp)
}
type subImager interface {
SubImage(image.Rectangle) image.Image
}
const tileSize = 32
xt := im.Bounds().Max.X / tileSize
yt := im.Bounds().Max.Y / tileSize
var tile [][][]byte // y -> x -> jpeg bytes
for yi := 0; yi < yt; yi++ {
var row [][]byte
for xi := 0; xi < xt; xi++ {
si := im.(subImager).SubImage(image.Rectangle{
Min: image.Point{xi * tileSize, yi * tileSize},
Max: image.Point{(xi + 1) * tileSize, (yi + 1) * tileSize},
})
buf := new(bytes.Buffer)
if err := jpeg.Encode(buf, si, &jpeg.Options{Quality: 90}); err != nil {
log.Fatal(err)
}
row = append(row, buf.Bytes())
}
tile = append(tile, row)
}
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
ms, _ := strconv.Atoi(r.FormValue("latency"))
const nanosPerMilli = 1e6
if r.FormValue("x") != "" {
x, _ := strconv.Atoi(r.FormValue("x"))
y, _ := strconv.Atoi(r.FormValue("y"))
if ms <= 1000 {
time.Sleep(time.Duration(ms) * nanosPerMilli)
}
if x >= 0 && x < xt && y >= 0 && y < yt {
http.ServeContent(w, r, "", time.Time{}, bytes.NewReader(tile[y][x]))
return
}
}
io.WriteString(w, "<html><body>")
fmt.Fprintf(w, "A grid of %d tiled images is below. Compare:<p>", xt*yt)
for _, ms := range []int{0, 30, 200, 1000} {
d := time.Duration(ms) * nanosPerMilli
fmt.Fprintf(w, "[<a href='https://%s/gophertiles?latency=%d'>HTTP/2, %v latency</a>] [<a href='http://%s/gophertiles?latency=%d'>HTTP/1, %v latency</a>]<br>\n",
httpsHost(), ms, d,
httpHost(), ms, d,
)
}
io.WriteString(w, "<p>\n")
cacheBust := time.Now().UnixNano()
for y := 0; y < yt; y++ {
for x := 0; x < xt; x++ {
fmt.Fprintf(w, "<img width=%d height=%d src='/gophertiles?x=%d&y=%d&cachebust=%d&latency=%d'>",
tileSize, tileSize, x, y, cacheBust, ms)
}
io.WriteString(w, "<br/>\n")
}
io.WriteString(w, "<hr><a href='/'>&lt;&lt Back to Go HTTP/2 demo server</a></body></html>")
})
}
func httpsHost() string {
if *prod {
return "http2.golang.org"
}
if v := *addr; strings.HasPrefix(v, ":") {
return "localhost" + v
} else {
return v
}
}
func httpHost() string {
if *prod {
return "http2.golang.org"
}
if v := *httpAddr; strings.HasPrefix(v, ":") {
return "localhost" + v
} else {
return v
}
}
func serveProdTLS() error {
c, err := googlestorage.NewServiceClient()
if err != nil {
return err
}
slurp := func(key string) ([]byte, error) {
const bucket = "http2-demo-server-tls"
rc, _, err := c.GetObject(&googlestorage.Object{
Bucket: bucket,
Key: key,
})
if err != nil {
return nil, fmt.Errorf("Error fetching GCS object %q in bucket %q: %v", key, bucket, err)
}
defer rc.Close()
return ioutil.ReadAll(rc)
}
certPem, err := slurp("http2.golang.org.chained.pem")
if err != nil {
return err
}
keyPem, err := slurp("http2.golang.org.key")
if err != nil {
return err
}
cert, err := tls.X509KeyPair(certPem, keyPem)
if err != nil {
return err
}
srv := &http.Server{
TLSConfig: &tls.Config{
Certificates: []tls.Certificate{cert},
},
}
http2.ConfigureServer(srv, &http2.Server{})
ln, err := net.Listen("tcp", ":443")
if err != nil {
return err
}
return srv.Serve(tls.NewListener(tcpKeepAliveListener{ln.(*net.TCPListener)}, srv.TLSConfig))
}
type tcpKeepAliveListener struct {
*net.TCPListener
}
func (ln tcpKeepAliveListener) Accept() (c net.Conn, err error) {
tc, err := ln.AcceptTCP()
if err != nil {
return
}
tc.SetKeepAlive(true)
tc.SetKeepAlivePeriod(3 * time.Minute)
return tc, nil
}
func serveProd() error {
errc := make(chan error, 2)
go func() { errc <- http.ListenAndServe(":80", nil) }()
go func() { errc <- serveProdTLS() }()
return <-errc
}
func main() {
var srv http.Server
flag.BoolVar(&http2.VerboseLogs, "verbose", false, "Verbose HTTP/2 debugging.")
flag.Parse()
srv.Addr = *addr
registerHandlers()
if *prod {
*httpAddr = "http2.golang.org"
log.Fatal(serveProd())
}
url := "https://" + *addr + "/"
log.Printf("Listening on " + url)
http2.ConfigureServer(&srv, &http2.Server{})
if *httpAddr != "" {
go func() { log.Fatal(http.ListenAndServe(*httpAddr, nil)) }()
}
go func() {
log.Fatal(srv.ListenAndServeTLS("server.crt", "server.key"))
}()
if *openFirefox && runtime.GOOS == "darwin" {
time.Sleep(250 * time.Millisecond)
exec.Command("open", "-b", "org.mozilla.nightly", "https://localhost:4430/").Run()
}
select {}
}

302
Godeps/_workspace/src/github.com/bradfitz/http2/h2demo/launch.go generated vendored Normal file
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@ -0,0 +1,302 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build ignore
package main
import (
"bufio"
"bytes"
"encoding/json"
"flag"
"fmt"
"io"
"io/ioutil"
"log"
"net/http"
"os"
"strings"
"time"
"golang.org/x/oauth2"
"golang.org/x/oauth2/google"
compute "google.golang.org/api/compute/v1"
)
var (
proj = flag.String("project", "symbolic-datum-552", "name of Project")
zone = flag.String("zone", "us-central1-a", "GCE zone")
mach = flag.String("machinetype", "n1-standard-1", "Machine type")
instName = flag.String("instance_name", "http2-demo", "Name of VM instance.")
sshPub = flag.String("ssh_public_key", "", "ssh public key file to authorize. Can modify later in Google's web UI anyway.")
staticIP = flag.String("static_ip", "130.211.116.44", "Static IP to use. If empty, automatic.")
writeObject = flag.String("write_object", "", "If non-empty, a VM isn't created and the flag value is Google Cloud Storage bucket/object to write. The contents from stdin.")
publicObject = flag.Bool("write_object_is_public", false, "Whether the object created by --write_object should be public.")
)
func readFile(v string) string {
slurp, err := ioutil.ReadFile(v)
if err != nil {
log.Fatalf("Error reading %s: %v", v, err)
}
return strings.TrimSpace(string(slurp))
}
var config = &oauth2.Config{
// The client-id and secret should be for an "Installed Application" when using
// the CLI. Later we'll use a web application with a callback.
ClientID: readFile("client-id.dat"),
ClientSecret: readFile("client-secret.dat"),
Endpoint: google.Endpoint,
Scopes: []string{
compute.DevstorageFull_controlScope,
compute.ComputeScope,
"https://www.googleapis.com/auth/sqlservice",
"https://www.googleapis.com/auth/sqlservice.admin",
},
RedirectURL: "urn:ietf:wg:oauth:2.0:oob",
}
const baseConfig = `#cloud-config
coreos:
units:
- name: h2demo.service
command: start
content: |
[Unit]
Description=HTTP2 Demo
[Service]
ExecStartPre=/bin/bash -c 'mkdir -p /opt/bin && curl -s -o /opt/bin/h2demo http://storage.googleapis.com/http2-demo-server-tls/h2demo && chmod +x /opt/bin/h2demo'
ExecStart=/opt/bin/h2demo --prod
RestartSec=5s
Restart=always
Type=simple
[Install]
WantedBy=multi-user.target
`
func main() {
flag.Parse()
if *proj == "" {
log.Fatalf("Missing --project flag")
}
prefix := "https://www.googleapis.com/compute/v1/projects/" + *proj
machType := prefix + "/zones/" + *zone + "/machineTypes/" + *mach
const tokenFileName = "token.dat"
tokenFile := tokenCacheFile(tokenFileName)
tokenSource := oauth2.ReuseTokenSource(nil, tokenFile)
token, err := tokenSource.Token()
if err != nil {
if *writeObject != "" {
log.Fatalf("Can't use --write_object without a valid token.dat file already cached.")
}
log.Printf("Error getting token from %s: %v", tokenFileName, err)
log.Printf("Get auth code from %v", config.AuthCodeURL("my-state"))
fmt.Print("\nEnter auth code: ")
sc := bufio.NewScanner(os.Stdin)
sc.Scan()
authCode := strings.TrimSpace(sc.Text())
token, err = config.Exchange(oauth2.NoContext, authCode)
if err != nil {
log.Fatalf("Error exchanging auth code for a token: %v", err)
}
if err := tokenFile.WriteToken(token); err != nil {
log.Fatalf("Error writing to %s: %v", tokenFileName, err)
}
tokenSource = oauth2.ReuseTokenSource(token, nil)
}
oauthClient := oauth2.NewClient(oauth2.NoContext, tokenSource)
if *writeObject != "" {
writeCloudStorageObject(oauthClient)
return
}
computeService, _ := compute.New(oauthClient)
natIP := *staticIP
if natIP == "" {
// Try to find it by name.
aggAddrList, err := computeService.Addresses.AggregatedList(*proj).Do()
if err != nil {
log.Fatal(err)
}
// http://godoc.org/code.google.com/p/google-api-go-client/compute/v1#AddressAggregatedList
IPLoop:
for _, asl := range aggAddrList.Items {
for _, addr := range asl.Addresses {
if addr.Name == *instName+"-ip" && addr.Status == "RESERVED" {
natIP = addr.Address
break IPLoop
}
}
}
}
cloudConfig := baseConfig
if *sshPub != "" {
key := strings.TrimSpace(readFile(*sshPub))
cloudConfig += fmt.Sprintf("\nssh_authorized_keys:\n - %s\n", key)
}
if os.Getenv("USER") == "bradfitz" {
cloudConfig += fmt.Sprintf("\nssh_authorized_keys:\n - %s\n", "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAIEAwks9dwWKlRC+73gRbvYtVg0vdCwDSuIlyt4z6xa/YU/jTDynM4R4W10hm2tPjy8iR1k8XhDv4/qdxe6m07NjG/By1tkmGpm1mGwho4Pr5kbAAy/Qg+NLCSdAYnnE00FQEcFOC15GFVMOW2AzDGKisReohwH9eIzHPzdYQNPRWXE= bradfitz@papag.bradfitz.com")
}
const maxCloudConfig = 32 << 10 // per compute API docs
if len(cloudConfig) > maxCloudConfig {
log.Fatalf("cloud config length of %d bytes is over %d byte limit", len(cloudConfig), maxCloudConfig)
}
instance := &compute.Instance{
Name: *instName,
Description: "Go Builder",
MachineType: machType,
Disks: []*compute.AttachedDisk{instanceDisk(computeService)},
Tags: &compute.Tags{
Items: []string{"http-server", "https-server"},
},
Metadata: &compute.Metadata{
Items: []*compute.MetadataItems{
{
Key: "user-data",
Value: cloudConfig,
},
},
},
NetworkInterfaces: []*compute.NetworkInterface{
&compute.NetworkInterface{
AccessConfigs: []*compute.AccessConfig{
&compute.AccessConfig{
Type: "ONE_TO_ONE_NAT",
Name: "External NAT",
NatIP: natIP,
},
},
Network: prefix + "/global/networks/default",
},
},
ServiceAccounts: []*compute.ServiceAccount{
{
Email: "default",
Scopes: []string{
compute.DevstorageFull_controlScope,
compute.ComputeScope,
},
},
},
}
log.Printf("Creating instance...")
op, err := computeService.Instances.Insert(*proj, *zone, instance).Do()
if err != nil {
log.Fatalf("Failed to create instance: %v", err)
}
opName := op.Name
log.Printf("Created. Waiting on operation %v", opName)
OpLoop:
for {
time.Sleep(2 * time.Second)
op, err := computeService.ZoneOperations.Get(*proj, *zone, opName).Do()
if err != nil {
log.Fatalf("Failed to get op %s: %v", opName, err)
}
switch op.Status {
case "PENDING", "RUNNING":
log.Printf("Waiting on operation %v", opName)
continue
case "DONE":
if op.Error != nil {
for _, operr := range op.Error.Errors {
log.Printf("Error: %+v", operr)
}
log.Fatalf("Failed to start.")
}
log.Printf("Success. %+v", op)
break OpLoop
default:
log.Fatalf("Unknown status %q: %+v", op.Status, op)
}
}
inst, err := computeService.Instances.Get(*proj, *zone, *instName).Do()
if err != nil {
log.Fatalf("Error getting instance after creation: %v", err)
}
ij, _ := json.MarshalIndent(inst, "", " ")
log.Printf("Instance: %s", ij)
}
func instanceDisk(svc *compute.Service) *compute.AttachedDisk {
const imageURL = "https://www.googleapis.com/compute/v1/projects/coreos-cloud/global/images/coreos-stable-444-5-0-v20141016"
diskName := *instName + "-disk"
return &compute.AttachedDisk{
AutoDelete: true,
Boot: true,
Type: "PERSISTENT",
InitializeParams: &compute.AttachedDiskInitializeParams{
DiskName: diskName,
SourceImage: imageURL,
DiskSizeGb: 50,
},
}
}
func writeCloudStorageObject(httpClient *http.Client) {
content := os.Stdin
const maxSlurp = 1 << 20
var buf bytes.Buffer
n, err := io.CopyN(&buf, content, maxSlurp)
if err != nil && err != io.EOF {
log.Fatalf("Error reading from stdin: %v, %v", n, err)
}
contentType := http.DetectContentType(buf.Bytes())
req, err := http.NewRequest("PUT", "https://storage.googleapis.com/"+*writeObject, io.MultiReader(&buf, content))
if err != nil {
log.Fatal(err)
}
req.Header.Set("x-goog-api-version", "2")
if *publicObject {
req.Header.Set("x-goog-acl", "public-read")
}
req.Header.Set("Content-Type", contentType)
res, err := httpClient.Do(req)
if err != nil {
log.Fatal(err)
}
if res.StatusCode != 200 {
res.Write(os.Stderr)
log.Fatalf("Failed.")
}
log.Printf("Success.")
os.Exit(0)
}
type tokenCacheFile string
func (f tokenCacheFile) Token() (*oauth2.Token, error) {
slurp, err := ioutil.ReadFile(string(f))
if err != nil {
return nil, err
}
t := new(oauth2.Token)
if err := json.Unmarshal(slurp, t); err != nil {
return nil, err
}
return t, nil
}
func (f tokenCacheFile) WriteToken(t *oauth2.Token) error {
jt, err := json.Marshal(t)
if err != nil {
return err
}
return ioutil.WriteFile(string(f), jt, 0600)
}

27
Godeps/_workspace/src/github.com/bradfitz/http2/h2demo/rootCA.key generated vendored Normal file
View File

@ -0,0 +1,27 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

1
Godeps/_workspace/src/github.com/bradfitz/http2/h2demo/rootCA.srl generated vendored Normal file
View File

@ -0,0 +1 @@
E2CE26BF3285059C

20
Godeps/_workspace/src/github.com/bradfitz/http2/h2demo/server.crt generated vendored Normal file
View File

@ -0,0 +1,20 @@
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

27
Godeps/_workspace/src/github.com/bradfitz/http2/h2demo/server.key generated vendored Normal file
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@ -0,0 +1,27 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

97
Godeps/_workspace/src/github.com/bradfitz/http2/h2i/README.md generated vendored Normal file
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# h2i
**h2i** is an interactive HTTP/2 ("h2") console debugger. Miss the good ol'
days of telnetting to your HTTP/1.n servers? We're bringing you
back.
Features:
- send raw HTTP/2 frames
- PING
- SETTINGS
- HEADERS
- etc
- type in HTTP/1.n and have it auto-HPACK/frame-ify it for HTTP/2
- pretty print all received HTTP/2 frames from the peer (including HPACK decoding)
- tab completion of commands, options
Not yet features, but soon:
- unnecessary CONTINUATION frames on short boundaries, to test peer implementations
- request bodies (DATA frames)
- send invalid frames for testing server implementations (supported by underlying Framer)
Later:
- act like a server
## Installation
```
$ go get github.com/bradfitz/http2/h2i
$ h2i <host>
```
## Demo
```
$ h2i
Usage: h2i <hostname>
-insecure
Whether to skip TLS cert validation
-nextproto string
Comma-separated list of NPN/ALPN protocol names to negotiate. (default "h2,h2-14")
$ h2i google.com
Connecting to google.com:443 ...
Connected to 74.125.224.41:443
Negotiated protocol "h2-14"
[FrameHeader SETTINGS len=18]
[MAX_CONCURRENT_STREAMS = 100]
[INITIAL_WINDOW_SIZE = 1048576]
[MAX_FRAME_SIZE = 16384]
[FrameHeader WINDOW_UPDATE len=4]
Window-Increment = 983041
h2i> PING h2iSayHI
[FrameHeader PING flags=ACK len=8]
Data = "h2iSayHI"
h2i> headers
(as HTTP/1.1)> GET / HTTP/1.1
(as HTTP/1.1)> Host: ip.appspot.com
(as HTTP/1.1)> User-Agent: h2i/brad-n-blake
(as HTTP/1.1)>
Opening Stream-ID 1:
:authority = ip.appspot.com
:method = GET
:path = /
:scheme = https
user-agent = h2i/brad-n-blake
[FrameHeader HEADERS flags=END_HEADERS stream=1 len=77]
:status = "200"
alternate-protocol = "443:quic,p=1"
content-length = "15"
content-type = "text/html"
date = "Fri, 01 May 2015 23:06:56 GMT"
server = "Google Frontend"
[FrameHeader DATA flags=END_STREAM stream=1 len=15]
"173.164.155.78\n"
[FrameHeader PING len=8]
Data = "\x00\x00\x00\x00\x00\x00\x00\x00"
h2i> ping
[FrameHeader PING flags=ACK len=8]
Data = "h2i_ping"
h2i> ping
[FrameHeader PING flags=ACK len=8]
Data = "h2i_ping"
h2i> ping
[FrameHeader GOAWAY len=22]
Last-Stream-ID = 1; Error-Code = PROTOCOL_ERROR (1)
ReadFrame: EOF
```
## Status
Quick few hour hack. So much yet to do. Feel free to file issues for
bugs or wishlist items, but [@bmizerany](https://github.com/bmizerany/)
and I aren't yet accepting pull requests until things settle down.

489
Godeps/_workspace/src/github.com/bradfitz/http2/h2i/h2i.go generated vendored Normal file
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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
/*
The h2i command is an interactive HTTP/2 console.
Usage:
$ h2i [flags] <hostname>
Interactive commands in the console: (all parts case-insensitive)
ping [data]
settings ack
settings FOO=n BAR=z
headers (open a new stream by typing HTTP/1.1)
*/
package main
import (
"bufio"
"bytes"
"crypto/tls"
"errors"
"flag"
"fmt"
"io"
"log"
"net"
"net/http"
"os"
"regexp"
"strconv"
"strings"
"github.com/bradfitz/http2"
"github.com/bradfitz/http2/hpack"
"golang.org/x/crypto/ssh/terminal"
)
// Flags
var (
flagNextProto = flag.String("nextproto", "h2,h2-14", "Comma-separated list of NPN/ALPN protocol names to negotiate.")
flagInsecure = flag.Bool("insecure", false, "Whether to skip TLS cert validation")
)
type command struct {
run func(*h2i, []string) error // required
// complete optionally specifies tokens (case-insensitive) which are
// valid for this subcommand.
complete func() []string
}
var commands = map[string]command{
"ping": command{run: (*h2i).cmdPing},
"settings": command{
run: (*h2i).cmdSettings,
complete: func() []string {
return []string{
"ACK",
http2.SettingHeaderTableSize.String(),
http2.SettingEnablePush.String(),
http2.SettingMaxConcurrentStreams.String(),
http2.SettingInitialWindowSize.String(),
http2.SettingMaxFrameSize.String(),
http2.SettingMaxHeaderListSize.String(),
}
},
},
"quit": command{run: (*h2i).cmdQuit},
"headers": command{run: (*h2i).cmdHeaders},
}
func usage() {
fmt.Fprintf(os.Stderr, "Usage: h2i <hostname>\n\n")
flag.PrintDefaults()
os.Exit(1)
}
// withPort adds ":443" if another port isn't already present.
func withPort(host string) string {
if _, _, err := net.SplitHostPort(host); err != nil {
return net.JoinHostPort(host, "443")
}
return host
}
// h2i is the app's state.
type h2i struct {
host string
tc *tls.Conn
framer *http2.Framer
term *terminal.Terminal
// owned by the command loop:
streamID uint32
hbuf bytes.Buffer
henc *hpack.Encoder
// owned by the readFrames loop:
peerSetting map[http2.SettingID]uint32
hdec *hpack.Decoder
}
func main() {
flag.Usage = usage
flag.Parse()
if flag.NArg() != 1 {
usage()
}
log.SetFlags(0)
host := flag.Arg(0)
app := &h2i{
host: host,
peerSetting: make(map[http2.SettingID]uint32),
}
app.henc = hpack.NewEncoder(&app.hbuf)
if err := app.Main(); err != nil {
if app.term != nil {
app.logf("%v\n", err)
} else {
fmt.Fprintf(os.Stderr, "%v\n", err)
}
os.Exit(1)
}
fmt.Fprintf(os.Stdout, "\n")
}
func (app *h2i) Main() error {
cfg := &tls.Config{
ServerName: app.host,
NextProtos: strings.Split(*flagNextProto, ","),
InsecureSkipVerify: *flagInsecure,
}
hostAndPort := withPort(app.host)
log.Printf("Connecting to %s ...", hostAndPort)
tc, err := tls.Dial("tcp", hostAndPort, cfg)
if err != nil {
return fmt.Errorf("Error dialing %s: %v", withPort(app.host), err)
}
log.Printf("Connected to %v", tc.RemoteAddr())
defer tc.Close()
if err := tc.Handshake(); err != nil {
return fmt.Errorf("TLS handshake: %v", err)
}
if !*flagInsecure {
if err := tc.VerifyHostname(app.host); err != nil {
return fmt.Errorf("VerifyHostname: %v", err)
}
}
state := tc.ConnectionState()
log.Printf("Negotiated protocol %q", state.NegotiatedProtocol)
if !state.NegotiatedProtocolIsMutual || state.NegotiatedProtocol == "" {
return fmt.Errorf("Could not negotiate protocol mutually")
}
if _, err := io.WriteString(tc, http2.ClientPreface); err != nil {
return err
}
app.framer = http2.NewFramer(tc, tc)
oldState, err := terminal.MakeRaw(0)
if err != nil {
return err
}
defer terminal.Restore(0, oldState)
var screen = struct {
io.Reader
io.Writer
}{os.Stdin, os.Stdout}
app.term = terminal.NewTerminal(screen, "h2i> ")
lastWord := regexp.MustCompile(`.+\W(\w+)$`)
app.term.AutoCompleteCallback = func(line string, pos int, key rune) (newLine string, newPos int, ok bool) {
if key != '\t' {
return
}
if pos != len(line) {
// TODO: we're being lazy for now, only supporting tab completion at the end.
return
}
// Auto-complete for the command itself.
if !strings.Contains(line, " ") {
var name string
name, _, ok = lookupCommand(line)
if !ok {
return
}
return name, len(name), true
}
_, c, ok := lookupCommand(line[:strings.IndexByte(line, ' ')])
if !ok || c.complete == nil {
return
}
if strings.HasSuffix(line, " ") {
app.logf("%s", strings.Join(c.complete(), " "))
return line, pos, true
}
m := lastWord.FindStringSubmatch(line)
if m == nil {
return line, len(line), true
}
soFar := m[1]
var match []string
for _, cand := range c.complete() {
if len(soFar) > len(cand) || !strings.EqualFold(cand[:len(soFar)], soFar) {
continue
}
match = append(match, cand)
}
if len(match) == 0 {
return
}
if len(match) > 1 {
// TODO: auto-complete any common prefix
app.logf("%s", strings.Join(match, " "))
return line, pos, true
}
newLine = line[:len(line)-len(soFar)] + match[0]
return newLine, len(newLine), true
}
errc := make(chan error, 2)
go func() { errc <- app.readFrames() }()
go func() { errc <- app.readConsole() }()
return <-errc
}
func (app *h2i) logf(format string, args ...interface{}) {
fmt.Fprintf(app.term, format+"\n", args...)
}
func (app *h2i) readConsole() error {
for {
line, err := app.term.ReadLine()
if err == io.EOF {
return nil
}
if err != nil {
return fmt.Errorf("terminal.ReadLine: %v", err)
}
f := strings.Fields(line)
if len(f) == 0 {
continue
}
cmd, args := f[0], f[1:]
if _, c, ok := lookupCommand(cmd); ok {
err = c.run(app, args)
} else {
app.logf("Unknown command %q", line)
}
if err == errExitApp {
return nil
}
if err != nil {
return err
}
}
}
func lookupCommand(prefix string) (name string, c command, ok bool) {
prefix = strings.ToLower(prefix)
if c, ok = commands[prefix]; ok {
return prefix, c, ok
}
for full, candidate := range commands {
if strings.HasPrefix(full, prefix) {
if c.run != nil {
return "", command{}, false // ambiguous
}
c = candidate
name = full
}
}
return name, c, c.run != nil
}
var errExitApp = errors.New("internal sentinel error value to quit the console reading loop")
func (a *h2i) cmdQuit(args []string) error {
if len(args) > 0 {
a.logf("the QUIT command takes no argument")
return nil
}
return errExitApp
}
func (a *h2i) cmdSettings(args []string) error {
if len(args) == 1 && strings.EqualFold(args[0], "ACK") {
return a.framer.WriteSettingsAck()
}
var settings []http2.Setting
for _, arg := range args {
if strings.EqualFold(arg, "ACK") {
a.logf("Error: ACK must be only argument with the SETTINGS command")
return nil
}
eq := strings.Index(arg, "=")
if eq == -1 {
a.logf("Error: invalid argument %q (expected SETTING_NAME=nnnn)", arg)
return nil
}
sid, ok := settingByName(arg[:eq])
if !ok {
a.logf("Error: unknown setting name %q", arg[:eq])
return nil
}
val, err := strconv.ParseUint(arg[eq+1:], 10, 32)
if err != nil {
a.logf("Error: invalid argument %q (expected SETTING_NAME=nnnn)", arg)
return nil
}
settings = append(settings, http2.Setting{
ID: sid,
Val: uint32(val),
})
}
a.logf("Sending: %v", settings)
return a.framer.WriteSettings(settings...)
}
func settingByName(name string) (http2.SettingID, bool) {
for _, sid := range [...]http2.SettingID{
http2.SettingHeaderTableSize,
http2.SettingEnablePush,
http2.SettingMaxConcurrentStreams,
http2.SettingInitialWindowSize,
http2.SettingMaxFrameSize,
http2.SettingMaxHeaderListSize,
} {
if strings.EqualFold(sid.String(), name) {
return sid, true
}
}
return 0, false
}
func (app *h2i) cmdPing(args []string) error {
if len(args) > 1 {
app.logf("invalid PING usage: only accepts 0 or 1 args")
return nil // nil means don't end the program
}
var data [8]byte
if len(args) == 1 {
copy(data[:], args[0])
} else {
copy(data[:], "h2i_ping")
}
return app.framer.WritePing(false, data)
}
func (app *h2i) cmdHeaders(args []string) error {
if len(args) > 0 {
app.logf("Error: HEADERS doesn't yet take arguments.")
// TODO: flags for restricting window size, to force CONTINUATION
// frames.
return nil
}
var h1req bytes.Buffer
app.term.SetPrompt("(as HTTP/1.1)> ")
defer app.term.SetPrompt("h2i> ")
for {
line, err := app.term.ReadLine()
if err != nil {
return err
}
h1req.WriteString(line)
h1req.WriteString("\r\n")
if line == "" {
break
}
}
req, err := http.ReadRequest(bufio.NewReader(&h1req))
if err != nil {
app.logf("Invalid HTTP/1.1 request: %v", err)
return nil
}
if app.streamID == 0 {
app.streamID = 1
} else {
app.streamID += 2
}
app.logf("Opening Stream-ID %d:", app.streamID)
hbf := app.encodeHeaders(req)
if len(hbf) > 16<<10 {
app.logf("TODO: h2i doesn't yet write CONTINUATION frames. Copy it from transport.go")
return nil
}
return app.framer.WriteHeaders(http2.HeadersFrameParam{
StreamID: app.streamID,
BlockFragment: hbf,
EndStream: req.Method == "GET" || req.Method == "HEAD", // good enough for now
EndHeaders: true, // for now
})
}
func (app *h2i) readFrames() error {
for {
f, err := app.framer.ReadFrame()
if err != nil {
return fmt.Errorf("ReadFrame: %v", err)
}
app.logf("%v", f)
switch f := f.(type) {
case *http2.PingFrame:
app.logf(" Data = %q", f.Data)
case *http2.SettingsFrame:
f.ForeachSetting(func(s http2.Setting) error {
app.logf(" %v", s)
app.peerSetting[s.ID] = s.Val
return nil
})
case *http2.WindowUpdateFrame:
app.logf(" Window-Increment = %v\n", f.Increment)
case *http2.GoAwayFrame:
app.logf(" Last-Stream-ID = %d; Error-Code = %v (%d)\n", f.LastStreamID, f.ErrCode, f.ErrCode)
case *http2.DataFrame:
app.logf(" %q", f.Data())
case *http2.HeadersFrame:
if f.HasPriority() {
app.logf(" PRIORITY = %v", f.Priority)
}
if app.hdec == nil {
// TODO: if the user uses h2i to send a SETTINGS frame advertising
// something larger, we'll need to respect SETTINGS_HEADER_TABLE_SIZE
// and stuff here instead of using the 4k default. But for now:
tableSize := uint32(4 << 10)
app.hdec = hpack.NewDecoder(tableSize, app.onNewHeaderField)
}
app.hdec.Write(f.HeaderBlockFragment())
}
}
}
// called from readLoop
func (app *h2i) onNewHeaderField(f hpack.HeaderField) {
if f.Sensitive {
app.logf(" %s = %q (SENSITIVE)", f.Name, f.Value)
}
app.logf(" %s = %q", f.Name, f.Value)
}
func (app *h2i) encodeHeaders(req *http.Request) []byte {
app.hbuf.Reset()
// TODO(bradfitz): figure out :authority-vs-Host stuff between http2 and Go
host := req.Host
if host == "" {
host = req.URL.Host
}
path := req.URL.Path
if path == "" {
path = "/"
}
app.writeHeader(":authority", host) // probably not right for all sites
app.writeHeader(":method", req.Method)
app.writeHeader(":path", path)
app.writeHeader(":scheme", "https")
for k, vv := range req.Header {
lowKey := strings.ToLower(k)
if lowKey == "host" {
continue
}
for _, v := range vv {
app.writeHeader(lowKey, v)
}
}
return app.hbuf.Bytes()
}
func (app *h2i) writeHeader(name, value string) {
app.henc.WriteField(hpack.HeaderField{Name: name, Value: value})
app.logf(" %s = %s", name, value)
}

80
Godeps/_workspace/src/github.com/bradfitz/http2/headermap.go generated vendored Normal file
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"net/http"
"strings"
)
var (
commonLowerHeader = map[string]string{} // Go-Canonical-Case -> lower-case
commonCanonHeader = map[string]string{} // lower-case -> Go-Canonical-Case
)
func init() {
for _, v := range []string{
"accept",
"accept-charset",
"accept-encoding",
"accept-language",
"accept-ranges",
"age",
"access-control-allow-origin",
"allow",
"authorization",
"cache-control",
"content-disposition",
"content-encoding",
"content-language",
"content-length",
"content-location",
"content-range",
"content-type",
"cookie",
"date",
"etag",
"expect",
"expires",
"from",
"host",
"if-match",
"if-modified-since",
"if-none-match",
"if-unmodified-since",
"last-modified",
"link",
"location",
"max-forwards",
"proxy-authenticate",
"proxy-authorization",
"range",
"referer",
"refresh",
"retry-after",
"server",
"set-cookie",
"strict-transport-security",
"transfer-encoding",
"user-agent",
"vary",
"via",
"www-authenticate",
} {
chk := http.CanonicalHeaderKey(v)
commonLowerHeader[chk] = v
commonCanonHeader[v] = chk
}
}
func lowerHeader(v string) string {
if s, ok := commonLowerHeader[v]; ok {
return s
}
return strings.ToLower(v)
}

252
Godeps/_workspace/src/github.com/bradfitz/http2/hpack/encode.go generated vendored Normal file
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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package hpack
import (
"io"
)
const (
uint32Max = ^uint32(0)
initialHeaderTableSize = 4096
)
type Encoder struct {
dynTab dynamicTable
// minSize is the minimum table size set by
// SetMaxDynamicTableSize after the previous Header Table Size
// Update.
minSize uint32
// maxSizeLimit is the maximum table size this encoder
// supports. This will protect the encoder from too large
// size.
maxSizeLimit uint32
// tableSizeUpdate indicates whether "Header Table Size
// Update" is required.
tableSizeUpdate bool
w io.Writer
buf []byte
}
// NewEncoder returns a new Encoder which performs HPACK encoding. An
// encoded data is written to w.
func NewEncoder(w io.Writer) *Encoder {
e := &Encoder{
minSize: uint32Max,
maxSizeLimit: initialHeaderTableSize,
tableSizeUpdate: false,
w: w,
}
e.dynTab.setMaxSize(initialHeaderTableSize)
return e
}
// WriteField encodes f into a single Write to e's underlying Writer.
// This function may also produce bytes for "Header Table Size Update"
// if necessary. If produced, it is done before encoding f.
func (e *Encoder) WriteField(f HeaderField) error {
e.buf = e.buf[:0]
if e.tableSizeUpdate {
e.tableSizeUpdate = false
if e.minSize < e.dynTab.maxSize {
e.buf = appendTableSize(e.buf, e.minSize)
}
e.minSize = uint32Max
e.buf = appendTableSize(e.buf, e.dynTab.maxSize)
}
idx, nameValueMatch := e.searchTable(f)
if nameValueMatch {
e.buf = appendIndexed(e.buf, idx)
} else {
indexing := e.shouldIndex(f)
if indexing {
e.dynTab.add(f)
}
if idx == 0 {
e.buf = appendNewName(e.buf, f, indexing)
} else {
e.buf = appendIndexedName(e.buf, f, idx, indexing)
}
}
n, err := e.w.Write(e.buf)
if err == nil && n != len(e.buf) {
err = io.ErrShortWrite
}
return err
}
// searchTable searches f in both stable and dynamic header tables.
// The static header table is searched first. Only when there is no
// exact match for both name and value, the dynamic header table is
// then searched. If there is no match, i is 0. If both name and value
// match, i is the matched index and nameValueMatch becomes true. If
// only name matches, i points to that index and nameValueMatch
// becomes false.
func (e *Encoder) searchTable(f HeaderField) (i uint64, nameValueMatch bool) {
for idx, hf := range staticTable {
if !constantTimeStringCompare(hf.Name, f.Name) {
continue
}
if i == 0 {
i = uint64(idx + 1)
}
if f.Sensitive {
continue
}
if !constantTimeStringCompare(hf.Value, f.Value) {
continue
}
i = uint64(idx + 1)
nameValueMatch = true
return
}
j, nameValueMatch := e.dynTab.search(f)
if nameValueMatch || (i == 0 && j != 0) {
i = j + uint64(len(staticTable))
}
return
}
// SetMaxDynamicTableSize changes the dynamic header table size to v.
// The actual size is bounded by the value passed to
// SetMaxDynamicTableSizeLimit.
func (e *Encoder) SetMaxDynamicTableSize(v uint32) {
if v > e.maxSizeLimit {
v = e.maxSizeLimit
}
if v < e.minSize {
e.minSize = v
}
e.tableSizeUpdate = true
e.dynTab.setMaxSize(v)
}
// SetMaxDynamicTableSizeLimit changes the maximum value that can be
// specified in SetMaxDynamicTableSize to v. By default, it is set to
// 4096, which is the same size of the default dynamic header table
// size described in HPACK specification. If the current maximum
// dynamic header table size is strictly greater than v, "Header Table
// Size Update" will be done in the next WriteField call and the
// maximum dynamic header table size is truncated to v.
func (e *Encoder) SetMaxDynamicTableSizeLimit(v uint32) {
e.maxSizeLimit = v
if e.dynTab.maxSize > v {
e.tableSizeUpdate = true
e.dynTab.setMaxSize(v)
}
}
// shouldIndex reports whether f should be indexed.
func (e *Encoder) shouldIndex(f HeaderField) bool {
return !f.Sensitive && f.size() <= e.dynTab.maxSize
}
// appendIndexed appends index i, as encoded in "Indexed Header Field"
// representation, to dst and returns the extended buffer.
func appendIndexed(dst []byte, i uint64) []byte {
first := len(dst)
dst = appendVarInt(dst, 7, i)
dst[first] |= 0x80
return dst
}
// appendNewName appends f, as encoded in one of "Literal Header field
// - New Name" representation variants, to dst and returns the
// extended buffer.
//
// If f.Sensitive is true, "Never Indexed" representation is used. If
// f.Sensitive is false and indexing is true, "Inremental Indexing"
// representation is used.
func appendNewName(dst []byte, f HeaderField, indexing bool) []byte {
dst = append(dst, encodeTypeByte(indexing, f.Sensitive))
dst = appendHpackString(dst, f.Name)
return appendHpackString(dst, f.Value)
}
// appendIndexedName appends f and index i referring indexed name
// entry, as encoded in one of "Literal Header field - Indexed Name"
// representation variants, to dst and returns the extended buffer.
//
// If f.Sensitive is true, "Never Indexed" representation is used. If
// f.Sensitive is false and indexing is true, "Incremental Indexing"
// representation is used.
func appendIndexedName(dst []byte, f HeaderField, i uint64, indexing bool) []byte {
first := len(dst)
var n byte
if indexing {
n = 6
} else {
n = 4
}
dst = appendVarInt(dst, n, i)
dst[first] |= encodeTypeByte(indexing, f.Sensitive)
return appendHpackString(dst, f.Value)
}
// appendTableSize appends v, as encoded in "Header Table Size Update"
// representation, to dst and returns the extended buffer.
func appendTableSize(dst []byte, v uint32) []byte {
first := len(dst)
dst = appendVarInt(dst, 5, uint64(v))
dst[first] |= 0x20
return dst
}
// appendVarInt appends i, as encoded in variable integer form using n
// bit prefix, to dst and returns the extended buffer.
//
// See
// http://http2.github.io/http2-spec/compression.html#integer.representation
func appendVarInt(dst []byte, n byte, i uint64) []byte {
k := uint64((1 << n) - 1)
if i < k {
return append(dst, byte(i))
}
dst = append(dst, byte(k))
i -= k
for ; i >= 128; i >>= 7 {
dst = append(dst, byte(0x80|(i&0x7f)))
}
return append(dst, byte(i))
}
// appendHpackString appends s, as encoded in "String Literal"
// representation, to dst and returns the the extended buffer.
//
// s will be encoded in Huffman codes only when it produces strictly
// shorter byte string.
func appendHpackString(dst []byte, s string) []byte {
huffmanLength := HuffmanEncodeLength(s)
if huffmanLength < uint64(len(s)) {
first := len(dst)
dst = appendVarInt(dst, 7, huffmanLength)
dst = AppendHuffmanString(dst, s)
dst[first] |= 0x80
} else {
dst = appendVarInt(dst, 7, uint64(len(s)))
dst = append(dst, s...)
}
return dst
}
// encodeTypeByte returns type byte. If sensitive is true, type byte
// for "Never Indexed" representation is returned. If sensitive is
// false and indexing is true, type byte for "Incremental Indexing"
// representation is returned. Otherwise, type byte for "Without
// Indexing" is returned.
func encodeTypeByte(indexing, sensitive bool) byte {
if sensitive {
return 0x10
}
if indexing {
return 0x40
}
return 0
}

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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package hpack
import (
"bytes"
"encoding/hex"
"reflect"
"strings"
"testing"
)
func TestEncoderTableSizeUpdate(t *testing.T) {
tests := []struct {
size1, size2 uint32
wantHex string
}{
// Should emit 2 table size updates (2048 and 4096)
{2048, 4096, "3fe10f 3fe11f 82"},
// Should emit 1 table size update (2048)
{16384, 2048, "3fe10f 82"},
}
for _, tt := range tests {
var buf bytes.Buffer
e := NewEncoder(&buf)
e.SetMaxDynamicTableSize(tt.size1)
e.SetMaxDynamicTableSize(tt.size2)
if err := e.WriteField(pair(":method", "GET")); err != nil {
t.Fatal(err)
}
want := removeSpace(tt.wantHex)
if got := hex.EncodeToString(buf.Bytes()); got != want {
t.Errorf("e.SetDynamicTableSize %v, %v = %q; want %q", tt.size1, tt.size2, got, want)
}
}
}
func TestEncoderWriteField(t *testing.T) {
var buf bytes.Buffer
e := NewEncoder(&buf)
var got []HeaderField
d := NewDecoder(4<<10, func(f HeaderField) {
got = append(got, f)
})
tests := []struct {
hdrs []HeaderField
}{
{[]HeaderField{
pair(":method", "GET"),
pair(":scheme", "http"),
pair(":path", "/"),
pair(":authority", "www.example.com"),
}},
{[]HeaderField{
pair(":method", "GET"),
pair(":scheme", "http"),
pair(":path", "/"),
pair(":authority", "www.example.com"),
pair("cache-control", "no-cache"),
}},
{[]HeaderField{
pair(":method", "GET"),
pair(":scheme", "https"),
pair(":path", "/index.html"),
pair(":authority", "www.example.com"),
pair("custom-key", "custom-value"),
}},
}
for i, tt := range tests {
buf.Reset()
got = got[:0]
for _, hf := range tt.hdrs {
if err := e.WriteField(hf); err != nil {
t.Fatal(err)
}
}
_, err := d.Write(buf.Bytes())
if err != nil {
t.Errorf("%d. Decoder Write = %v", i, err)
}
if !reflect.DeepEqual(got, tt.hdrs) {
t.Errorf("%d. Decoded %+v; want %+v", i, got, tt.hdrs)
}
}
}
func TestEncoderSearchTable(t *testing.T) {
e := NewEncoder(nil)
e.dynTab.add(pair("foo", "bar"))
e.dynTab.add(pair("blake", "miz"))
e.dynTab.add(pair(":method", "GET"))
tests := []struct {
hf HeaderField
wantI uint64
wantMatch bool
}{
// Name and Value match
{pair("foo", "bar"), uint64(len(staticTable) + 3), true},
{pair("blake", "miz"), uint64(len(staticTable) + 2), true},
{pair(":method", "GET"), 2, true},
// Only name match because Sensitive == true
{HeaderField{":method", "GET", true}, 2, false},
// Only Name matches
{pair("foo", "..."), uint64(len(staticTable) + 3), false},
{pair("blake", "..."), uint64(len(staticTable) + 2), false},
{pair(":method", "..."), 2, false},
// None match
{pair("foo-", "bar"), 0, false},
}
for _, tt := range tests {
if gotI, gotMatch := e.searchTable(tt.hf); gotI != tt.wantI || gotMatch != tt.wantMatch {
t.Errorf("d.search(%+v) = %v, %v; want %v, %v", tt.hf, gotI, gotMatch, tt.wantI, tt.wantMatch)
}
}
}
func TestAppendVarInt(t *testing.T) {
tests := []struct {
n byte
i uint64
want []byte
}{
// Fits in a byte:
{1, 0, []byte{0}},
{2, 2, []byte{2}},
{3, 6, []byte{6}},
{4, 14, []byte{14}},
{5, 30, []byte{30}},
{6, 62, []byte{62}},
{7, 126, []byte{126}},
{8, 254, []byte{254}},
// Multiple bytes:
{5, 1337, []byte{31, 154, 10}},
}
for _, tt := range tests {
got := appendVarInt(nil, tt.n, tt.i)
if !bytes.Equal(got, tt.want) {
t.Errorf("appendVarInt(nil, %v, %v) = %v; want %v", tt.n, tt.i, got, tt.want)
}
}
}
func TestAppendHpackString(t *testing.T) {
tests := []struct {
s, wantHex string
}{
// Huffman encoded
{"www.example.com", "8c f1e3 c2e5 f23a 6ba0 ab90 f4ff"},
// Not Huffman encoded
{"a", "01 61"},
// zero length
{"", "00"},
}
for _, tt := range tests {
want := removeSpace(tt.wantHex)
buf := appendHpackString(nil, tt.s)
if got := hex.EncodeToString(buf); want != got {
t.Errorf("appendHpackString(nil, %q) = %q; want %q", tt.s, got, want)
}
}
}
func TestAppendIndexed(t *testing.T) {
tests := []struct {
i uint64
wantHex string
}{
// 1 byte
{1, "81"},
{126, "fe"},
// 2 bytes
{127, "ff00"},
{128, "ff01"},
}
for _, tt := range tests {
want := removeSpace(tt.wantHex)
buf := appendIndexed(nil, tt.i)
if got := hex.EncodeToString(buf); want != got {
t.Errorf("appendIndex(nil, %v) = %q; want %q", tt.i, got, want)
}
}
}
func TestAppendNewName(t *testing.T) {
tests := []struct {
f HeaderField
indexing bool
wantHex string
}{
// Incremental indexing
{HeaderField{"custom-key", "custom-value", false}, true, "40 88 25a8 49e9 5ba9 7d7f 89 25a8 49e9 5bb8 e8b4 bf"},
// Without indexing
{HeaderField{"custom-key", "custom-value", false}, false, "00 88 25a8 49e9 5ba9 7d7f 89 25a8 49e9 5bb8 e8b4 bf"},
// Never indexed
{HeaderField{"custom-key", "custom-value", true}, true, "10 88 25a8 49e9 5ba9 7d7f 89 25a8 49e9 5bb8 e8b4 bf"},
{HeaderField{"custom-key", "custom-value", true}, false, "10 88 25a8 49e9 5ba9 7d7f 89 25a8 49e9 5bb8 e8b4 bf"},
}
for _, tt := range tests {
want := removeSpace(tt.wantHex)
buf := appendNewName(nil, tt.f, tt.indexing)
if got := hex.EncodeToString(buf); want != got {
t.Errorf("appendNewName(nil, %+v, %v) = %q; want %q", tt.f, tt.indexing, got, want)
}
}
}
func TestAppendIndexedName(t *testing.T) {
tests := []struct {
f HeaderField
i uint64
indexing bool
wantHex string
}{
// Incremental indexing
{HeaderField{":status", "302", false}, 8, true, "48 82 6402"},
// Without indexing
{HeaderField{":status", "302", false}, 8, false, "08 82 6402"},
// Never indexed
{HeaderField{":status", "302", true}, 8, true, "18 82 6402"},
{HeaderField{":status", "302", true}, 8, false, "18 82 6402"},
}
for _, tt := range tests {
want := removeSpace(tt.wantHex)
buf := appendIndexedName(nil, tt.f, tt.i, tt.indexing)
if got := hex.EncodeToString(buf); want != got {
t.Errorf("appendIndexedName(nil, %+v, %v) = %q; want %q", tt.f, tt.indexing, got, want)
}
}
}
func TestAppendTableSize(t *testing.T) {
tests := []struct {
i uint32
wantHex string
}{
// Fits into 1 byte
{30, "3e"},
// Extra byte
{31, "3f00"},
{32, "3f01"},
}
for _, tt := range tests {
want := removeSpace(tt.wantHex)
buf := appendTableSize(nil, tt.i)
if got := hex.EncodeToString(buf); want != got {
t.Errorf("appendTableSize(nil, %v) = %q; want %q", tt.i, got, want)
}
}
}
func TestEncoderSetMaxDynamicTableSize(t *testing.T) {
var buf bytes.Buffer
e := NewEncoder(&buf)
tests := []struct {
v uint32
wantUpdate bool
wantMinSize uint32
wantMaxSize uint32
}{
// Set new table size to 2048
{2048, true, 2048, 2048},
// Set new table size to 16384, but still limited to
// 4096
{16384, true, 2048, 4096},
}
for _, tt := range tests {
e.SetMaxDynamicTableSize(tt.v)
if got := e.tableSizeUpdate; tt.wantUpdate != got {
t.Errorf("e.tableSizeUpdate = %v; want %v", got, tt.wantUpdate)
}
if got := e.minSize; tt.wantMinSize != got {
t.Errorf("e.minSize = %v; want %v", got, tt.wantMinSize)
}
if got := e.dynTab.maxSize; tt.wantMaxSize != got {
t.Errorf("e.maxSize = %v; want %v", got, tt.wantMaxSize)
}
}
}
func TestEncoderSetMaxDynamicTableSizeLimit(t *testing.T) {
e := NewEncoder(nil)
// 4095 < initialHeaderTableSize means maxSize is truncated to
// 4095.
e.SetMaxDynamicTableSizeLimit(4095)
if got, want := e.dynTab.maxSize, uint32(4095); got != want {
t.Errorf("e.dynTab.maxSize = %v; want %v", got, want)
}
if got, want := e.maxSizeLimit, uint32(4095); got != want {
t.Errorf("e.maxSizeLimit = %v; want %v", got, want)
}
if got, want := e.tableSizeUpdate, true; got != want {
t.Errorf("e.tableSizeUpdate = %v; want %v", got, want)
}
// maxSize will be truncated to maxSizeLimit
e.SetMaxDynamicTableSize(16384)
if got, want := e.dynTab.maxSize, uint32(4095); got != want {
t.Errorf("e.dynTab.maxSize = %v; want %v", got, want)
}
// 8192 > current maxSizeLimit, so maxSize does not change.
e.SetMaxDynamicTableSizeLimit(8192)
if got, want := e.dynTab.maxSize, uint32(4095); got != want {
t.Errorf("e.dynTab.maxSize = %v; want %v", got, want)
}
if got, want := e.maxSizeLimit, uint32(8192); got != want {
t.Errorf("e.maxSizeLimit = %v; want %v", got, want)
}
}
func removeSpace(s string) string {
return strings.Replace(s, " ", "", -1)
}

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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Package hpack implements HPACK, a compression format for
// efficiently representing HTTP header fields in the context of HTTP/2.
//
// See http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-09
package hpack
import (
"bytes"
"errors"
"fmt"
)
// A DecodingError is something the spec defines as a decoding error.
type DecodingError struct {
Err error
}
func (de DecodingError) Error() string {
return fmt.Sprintf("decoding error: %v", de.Err)
}
// An InvalidIndexError is returned when an encoder references a table
// entry before the static table or after the end of the dynamic table.
type InvalidIndexError int
func (e InvalidIndexError) Error() string {
return fmt.Sprintf("invalid indexed representation index %d", int(e))
}
// A HeaderField is a name-value pair. Both the name and value are
// treated as opaque sequences of octets.
type HeaderField struct {
Name, Value string
// Sensitive means that this header field should never be
// indexed.
Sensitive bool
}
func (hf *HeaderField) size() uint32 {
// http://http2.github.io/http2-spec/compression.html#rfc.section.4.1
// "The size of the dynamic table is the sum of the size of
// its entries. The size of an entry is the sum of its name's
// length in octets (as defined in Section 5.2), its value's
// length in octets (see Section 5.2), plus 32. The size of
// an entry is calculated using the length of the name and
// value without any Huffman encoding applied."
// This can overflow if somebody makes a large HeaderField
// Name and/or Value by hand, but we don't care, because that
// won't happen on the wire because the encoding doesn't allow
// it.
return uint32(len(hf.Name) + len(hf.Value) + 32)
}
// A Decoder is the decoding context for incremental processing of
// header blocks.
type Decoder struct {
dynTab dynamicTable
emit func(f HeaderField)
// buf is the unparsed buffer. It's only written to
// saveBuf if it was truncated in the middle of a header
// block. Because it's usually not owned, we can only
// process it under Write.
buf []byte // usually not owned
saveBuf bytes.Buffer
}
func NewDecoder(maxSize uint32, emitFunc func(f HeaderField)) *Decoder {
d := &Decoder{
emit: emitFunc,
}
d.dynTab.allowedMaxSize = maxSize
d.dynTab.setMaxSize(maxSize)
return d
}
// TODO: add method *Decoder.Reset(maxSize, emitFunc) to let callers re-use Decoders and their
// underlying buffers for garbage reasons.
func (d *Decoder) SetMaxDynamicTableSize(v uint32) {
d.dynTab.setMaxSize(v)
}
// SetAllowedMaxDynamicTableSize sets the upper bound that the encoded
// stream (via dynamic table size updates) may set the maximum size
// to.
func (d *Decoder) SetAllowedMaxDynamicTableSize(v uint32) {
d.dynTab.allowedMaxSize = v
}
type dynamicTable struct {
// ents is the FIFO described at
// http://http2.github.io/http2-spec/compression.html#rfc.section.2.3.2
// The newest (low index) is append at the end, and items are
// evicted from the front.
ents []HeaderField
size uint32
maxSize uint32 // current maxSize
allowedMaxSize uint32 // maxSize may go up to this, inclusive
}
func (dt *dynamicTable) setMaxSize(v uint32) {
dt.maxSize = v
dt.evict()
}
// TODO: change dynamicTable to be a struct with a slice and a size int field,
// per http://http2.github.io/http2-spec/compression.html#rfc.section.4.1:
//
//
// Then make add increment the size. maybe the max size should move from Decoder to
// dynamicTable and add should return an ok bool if there was enough space.
//
// Later we'll need a remove operation on dynamicTable.
func (dt *dynamicTable) add(f HeaderField) {
dt.ents = append(dt.ents, f)
dt.size += f.size()
dt.evict()
}
// If we're too big, evict old stuff (front of the slice)
func (dt *dynamicTable) evict() {
base := dt.ents // keep base pointer of slice
for dt.size > dt.maxSize {
dt.size -= dt.ents[0].size()
dt.ents = dt.ents[1:]
}
// Shift slice contents down if we evicted things.
if len(dt.ents) != len(base) {
copy(base, dt.ents)
dt.ents = base[:len(dt.ents)]
}
}
// constantTimeStringCompare compares string a and b in a constant
// time manner.
func constantTimeStringCompare(a, b string) bool {
if len(a) != len(b) {
return false
}
c := byte(0)
for i := 0; i < len(a); i++ {
c |= a[i] ^ b[i]
}
return c == 0
}
// Search searches f in the table. The return value i is 0 if there is
// no name match. If there is name match or name/value match, i is the
// index of that entry (1-based). If both name and value match,
// nameValueMatch becomes true.
func (dt *dynamicTable) search(f HeaderField) (i uint64, nameValueMatch bool) {
l := len(dt.ents)
for j := l - 1; j >= 0; j-- {
ent := dt.ents[j]
if !constantTimeStringCompare(ent.Name, f.Name) {
continue
}
if i == 0 {
i = uint64(l - j)
}
if f.Sensitive {
continue
}
if !constantTimeStringCompare(ent.Value, f.Value) {
continue
}
i = uint64(l - j)
nameValueMatch = true
return
}
return
}
func (d *Decoder) maxTableIndex() int {
return len(d.dynTab.ents) + len(staticTable)
}
func (d *Decoder) at(i uint64) (hf HeaderField, ok bool) {
if i < 1 {
return
}
if i > uint64(d.maxTableIndex()) {
return
}
if i <= uint64(len(staticTable)) {
return staticTable[i-1], true
}
dents := d.dynTab.ents
return dents[len(dents)-(int(i)-len(staticTable))], true
}
// Decode decodes an entire block.
//
// TODO: remove this method and make it incremental later? This is
// easier for debugging now.
func (d *Decoder) DecodeFull(p []byte) ([]HeaderField, error) {
var hf []HeaderField
saveFunc := d.emit
defer func() { d.emit = saveFunc }()
d.emit = func(f HeaderField) { hf = append(hf, f) }
if _, err := d.Write(p); err != nil {
return nil, err
}
if err := d.Close(); err != nil {
return nil, err
}
return hf, nil
}
func (d *Decoder) Close() error {
if d.saveBuf.Len() > 0 {
d.saveBuf.Reset()
return DecodingError{errors.New("truncated headers")}
}
return nil
}
func (d *Decoder) Write(p []byte) (n int, err error) {
if len(p) == 0 {
// Prevent state machine CPU attacks (making us redo
// work up to the point of finding out we don't have
// enough data)
return
}
// Only copy the data if we have to. Optimistically assume
// that p will contain a complete header block.
if d.saveBuf.Len() == 0 {
d.buf = p
} else {
d.saveBuf.Write(p)
d.buf = d.saveBuf.Bytes()
d.saveBuf.Reset()
}
for len(d.buf) > 0 {
err = d.parseHeaderFieldRepr()
if err != nil {
if err == errNeedMore {
err = nil
d.saveBuf.Write(d.buf)
}
break
}
}
return len(p), err
}
// errNeedMore is an internal sentinel error value that means the
// buffer is truncated and we need to read more data before we can
// continue parsing.
var errNeedMore = errors.New("need more data")
type indexType int
const (
indexedTrue indexType = iota
indexedFalse
indexedNever
)
func (v indexType) indexed() bool { return v == indexedTrue }
func (v indexType) sensitive() bool { return v == indexedNever }
// returns errNeedMore if there isn't enough data available.
// any other error is fatal.
// consumes d.buf iff it returns nil.
// precondition: must be called with len(d.buf) > 0
func (d *Decoder) parseHeaderFieldRepr() error {
b := d.buf[0]
switch {
case b&128 != 0:
// Indexed representation.
// High bit set?
// http://http2.github.io/http2-spec/compression.html#rfc.section.6.1
return d.parseFieldIndexed()
case b&192 == 64:
// 6.2.1 Literal Header Field with Incremental Indexing
// 0b10xxxxxx: top two bits are 10
// http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.1
return d.parseFieldLiteral(6, indexedTrue)
case b&240 == 0:
// 6.2.2 Literal Header Field without Indexing
// 0b0000xxxx: top four bits are 0000
// http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.2
return d.parseFieldLiteral(4, indexedFalse)
case b&240 == 16:
// 6.2.3 Literal Header Field never Indexed
// 0b0001xxxx: top four bits are 0001
// http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.3
return d.parseFieldLiteral(4, indexedNever)
case b&224 == 32:
// 6.3 Dynamic Table Size Update
// Top three bits are '001'.
// http://http2.github.io/http2-spec/compression.html#rfc.section.6.3
return d.parseDynamicTableSizeUpdate()
}
return DecodingError{errors.New("invalid encoding")}
}
// (same invariants and behavior as parseHeaderFieldRepr)
func (d *Decoder) parseFieldIndexed() error {
buf := d.buf
idx, buf, err := readVarInt(7, buf)
if err != nil {
return err
}
hf, ok := d.at(idx)
if !ok {
return DecodingError{InvalidIndexError(idx)}
}
d.emit(HeaderField{Name: hf.Name, Value: hf.Value})
d.buf = buf
return nil
}
// (same invariants and behavior as parseHeaderFieldRepr)
func (d *Decoder) parseFieldLiteral(n uint8, it indexType) error {
buf := d.buf
nameIdx, buf, err := readVarInt(n, buf)
if err != nil {
return err
}
var hf HeaderField
if nameIdx > 0 {
ihf, ok := d.at(nameIdx)
if !ok {
return DecodingError{InvalidIndexError(nameIdx)}
}
hf.Name = ihf.Name
} else {
hf.Name, buf, err = readString(buf)
if err != nil {
return err
}
}
hf.Value, buf, err = readString(buf)
if err != nil {
return err
}
d.buf = buf
if it.indexed() {
d.dynTab.add(hf)
}
hf.Sensitive = it.sensitive()
d.emit(hf)
return nil
}
// (same invariants and behavior as parseHeaderFieldRepr)
func (d *Decoder) parseDynamicTableSizeUpdate() error {
buf := d.buf
size, buf, err := readVarInt(5, buf)
if err != nil {
return err
}
if size > uint64(d.dynTab.allowedMaxSize) {
return DecodingError{errors.New("dynamic table size update too large")}
}
d.dynTab.setMaxSize(uint32(size))
d.buf = buf
return nil
}
var errVarintOverflow = DecodingError{errors.New("varint integer overflow")}
// readVarInt reads an unsigned variable length integer off the
// beginning of p. n is the parameter as described in
// http://http2.github.io/http2-spec/compression.html#rfc.section.5.1.
//
// n must always be between 1 and 8.
//
// The returned remain buffer is either a smaller suffix of p, or err != nil.
// The error is errNeedMore if p doesn't contain a complete integer.
func readVarInt(n byte, p []byte) (i uint64, remain []byte, err error) {
if n < 1 || n > 8 {
panic("bad n")
}
if len(p) == 0 {
return 0, p, errNeedMore
}
i = uint64(p[0])
if n < 8 {
i &= (1 << uint64(n)) - 1
}
if i < (1<<uint64(n))-1 {
return i, p[1:], nil
}
origP := p
p = p[1:]
var m uint64
for len(p) > 0 {
b := p[0]
p = p[1:]
i += uint64(b&127) << m
if b&128 == 0 {
return i, p, nil
}
m += 7
if m >= 63 { // TODO: proper overflow check. making this up.
return 0, origP, errVarintOverflow
}
}
return 0, origP, errNeedMore
}
func readString(p []byte) (s string, remain []byte, err error) {
if len(p) == 0 {
return "", p, errNeedMore
}
isHuff := p[0]&128 != 0
strLen, p, err := readVarInt(7, p)
if err != nil {
return "", p, err
}
if uint64(len(p)) < strLen {
return "", p, errNeedMore
}
if !isHuff {
return string(p[:strLen]), p[strLen:], nil
}
// TODO: optimize this garbage:
var buf bytes.Buffer
if _, err := HuffmanDecode(&buf, p[:strLen]); err != nil {
return "", nil, err
}
return buf.String(), p[strLen:], nil
}

648
Godeps/_workspace/src/github.com/bradfitz/http2/hpack/hpack_test.go generated vendored Normal file
View File

@ -0,0 +1,648 @@
// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package hpack
import (
"bufio"
"bytes"
"encoding/hex"
"fmt"
"reflect"
"regexp"
"strconv"
"strings"
"testing"
)
func TestStaticTable(t *testing.T) {
fromSpec := `
+-------+-----------------------------+---------------+
| 1 | :authority | |
| 2 | :method | GET |
| 3 | :method | POST |
| 4 | :path | / |
| 5 | :path | /index.html |
| 6 | :scheme | http |
| 7 | :scheme | https |
| 8 | :status | 200 |
| 9 | :status | 204 |
| 10 | :status | 206 |
| 11 | :status | 304 |
| 12 | :status | 400 |
| 13 | :status | 404 |
| 14 | :status | 500 |
| 15 | accept-charset | |
| 16 | accept-encoding | gzip, deflate |
| 17 | accept-language | |
| 18 | accept-ranges | |
| 19 | accept | |
| 20 | access-control-allow-origin | |
| 21 | age | |
| 22 | allow | |
| 23 | authorization | |
| 24 | cache-control | |
| 25 | content-disposition | |
| 26 | content-encoding | |
| 27 | content-language | |
| 28 | content-length | |
| 29 | content-location | |
| 30 | content-range | |
| 31 | content-type | |
| 32 | cookie | |
| 33 | date | |
| 34 | etag | |
| 35 | expect | |
| 36 | expires | |
| 37 | from | |
| 38 | host | |
| 39 | if-match | |
| 40 | if-modified-since | |
| 41 | if-none-match | |
| 42 | if-range | |
| 43 | if-unmodified-since | |
| 44 | last-modified | |
| 45 | link | |
| 46 | location | |
| 47 | max-forwards | |
| 48 | proxy-authenticate | |
| 49 | proxy-authorization | |
| 50 | range | |
| 51 | referer | |
| 52 | refresh | |
| 53 | retry-after | |
| 54 | server | |
| 55 | set-cookie | |
| 56 | strict-transport-security | |
| 57 | transfer-encoding | |
| 58 | user-agent | |
| 59 | vary | |
| 60 | via | |
| 61 | www-authenticate | |
+-------+-----------------------------+---------------+
`
bs := bufio.NewScanner(strings.NewReader(fromSpec))
re := regexp.MustCompile(`\| (\d+)\s+\| (\S+)\s*\| (\S(.*\S)?)?\s+\|`)
for bs.Scan() {
l := bs.Text()
if !strings.Contains(l, "|") {
continue
}
m := re.FindStringSubmatch(l)
if m == nil {
continue
}
i, err := strconv.Atoi(m[1])
if err != nil {
t.Errorf("Bogus integer on line %q", l)
continue
}
if i < 1 || i > len(staticTable) {
t.Errorf("Bogus index %d on line %q", i, l)
continue
}
if got, want := staticTable[i-1].Name, m[2]; got != want {
t.Errorf("header index %d name = %q; want %q", i, got, want)
}
if got, want := staticTable[i-1].Value, m[3]; got != want {
t.Errorf("header index %d value = %q; want %q", i, got, want)
}
}
if err := bs.Err(); err != nil {
t.Error(err)
}
}
func (d *Decoder) mustAt(idx int) HeaderField {
if hf, ok := d.at(uint64(idx)); !ok {
panic(fmt.Sprintf("bogus index %d", idx))
} else {
return hf
}
}
func TestDynamicTableAt(t *testing.T) {
d := NewDecoder(4096, nil)
at := d.mustAt
if got, want := at(2), (pair(":method", "GET")); got != want {
t.Errorf("at(2) = %v; want %v", got, want)
}
d.dynTab.add(pair("foo", "bar"))
d.dynTab.add(pair("blake", "miz"))
if got, want := at(len(staticTable)+1), (pair("blake", "miz")); got != want {
t.Errorf("at(dyn 1) = %v; want %v", got, want)
}
if got, want := at(len(staticTable)+2), (pair("foo", "bar")); got != want {
t.Errorf("at(dyn 2) = %v; want %v", got, want)
}
if got, want := at(3), (pair(":method", "POST")); got != want {
t.Errorf("at(3) = %v; want %v", got, want)
}
}
func TestDynamicTableSearch(t *testing.T) {
dt := dynamicTable{}
dt.setMaxSize(4096)
dt.add(pair("foo", "bar"))
dt.add(pair("blake", "miz"))
dt.add(pair(":method", "GET"))
tests := []struct {
hf HeaderField
wantI uint64
wantMatch bool
}{
// Name and Value match
{pair("foo", "bar"), 3, true},
{pair(":method", "GET"), 1, true},
// Only name match because of Sensitive == true
{HeaderField{"blake", "miz", true}, 2, false},
// Only Name matches
{pair("foo", "..."), 3, false},
{pair("blake", "..."), 2, false},
{pair(":method", "..."), 1, false},
// None match
{pair("foo-", "bar"), 0, false},
}
for _, tt := range tests {
if gotI, gotMatch := dt.search(tt.hf); gotI != tt.wantI || gotMatch != tt.wantMatch {
t.Errorf("d.search(%+v) = %v, %v; want %v, %v", tt.hf, gotI, gotMatch, tt.wantI, tt.wantMatch)
}
}
}
func TestDynamicTableSizeEvict(t *testing.T) {
d := NewDecoder(4096, nil)
if want := uint32(0); d.dynTab.size != want {
t.Fatalf("size = %d; want %d", d.dynTab.size, want)
}
add := d.dynTab.add
add(pair("blake", "eats pizza"))
if want := uint32(15 + 32); d.dynTab.size != want {
t.Fatalf("after pizza, size = %d; want %d", d.dynTab.size, want)
}
add(pair("foo", "bar"))
if want := uint32(15 + 32 + 6 + 32); d.dynTab.size != want {
t.Fatalf("after foo bar, size = %d; want %d", d.dynTab.size, want)
}
d.dynTab.setMaxSize(15 + 32 + 1 /* slop */)
if want := uint32(6 + 32); d.dynTab.size != want {
t.Fatalf("after setMaxSize, size = %d; want %d", d.dynTab.size, want)
}
if got, want := d.mustAt(len(staticTable)+1), (pair("foo", "bar")); got != want {
t.Errorf("at(dyn 1) = %v; want %v", got, want)
}
add(pair("long", strings.Repeat("x", 500)))
if want := uint32(0); d.dynTab.size != want {
t.Fatalf("after big one, size = %d; want %d", d.dynTab.size, want)
}
}
func TestDecoderDecode(t *testing.T) {
tests := []struct {
name string
in []byte
want []HeaderField
wantDynTab []HeaderField // newest entry first
}{
// C.2.1 Literal Header Field with Indexing
// http://http2.github.io/http2-spec/compression.html#rfc.section.C.2.1
{"C.2.1", dehex("400a 6375 7374 6f6d 2d6b 6579 0d63 7573 746f 6d2d 6865 6164 6572"),
[]HeaderField{pair("custom-key", "custom-header")},
[]HeaderField{pair("custom-key", "custom-header")},
},
// C.2.2 Literal Header Field without Indexing
// http://http2.github.io/http2-spec/compression.html#rfc.section.C.2.2
{"C.2.2", dehex("040c 2f73 616d 706c 652f 7061 7468"),
[]HeaderField{pair(":path", "/sample/path")},
[]HeaderField{}},
// C.2.3 Literal Header Field never Indexed
// http://http2.github.io/http2-spec/compression.html#rfc.section.C.2.3
{"C.2.3", dehex("1008 7061 7373 776f 7264 0673 6563 7265 74"),
[]HeaderField{{"password", "secret", true}},
[]HeaderField{}},
// C.2.4 Indexed Header Field
// http://http2.github.io/http2-spec/compression.html#rfc.section.C.2.4
{"C.2.4", []byte("\x82"),
[]HeaderField{pair(":method", "GET")},
[]HeaderField{}},
}
for _, tt := range tests {
d := NewDecoder(4096, nil)
hf, err := d.DecodeFull(tt.in)
if err != nil {
t.Errorf("%s: %v", tt.name, err)
continue
}
if !reflect.DeepEqual(hf, tt.want) {
t.Errorf("%s: Got %v; want %v", tt.name, hf, tt.want)
}
gotDynTab := d.dynTab.reverseCopy()
if !reflect.DeepEqual(gotDynTab, tt.wantDynTab) {
t.Errorf("%s: dynamic table after = %v; want %v", tt.name, gotDynTab, tt.wantDynTab)
}
}
}
func (dt *dynamicTable) reverseCopy() (hf []HeaderField) {
hf = make([]HeaderField, len(dt.ents))
for i := range hf {
hf[i] = dt.ents[len(dt.ents)-1-i]
}
return
}
type encAndWant struct {
enc []byte
want []HeaderField
wantDynTab []HeaderField
wantDynSize uint32
}
// C.3 Request Examples without Huffman Coding
// http://http2.github.io/http2-spec/compression.html#rfc.section.C.3
func TestDecodeC3_NoHuffman(t *testing.T) {
testDecodeSeries(t, 4096, []encAndWant{
{dehex("8286 8441 0f77 7777 2e65 7861 6d70 6c65 2e63 6f6d"),
[]HeaderField{
pair(":method", "GET"),
pair(":scheme", "http"),
pair(":path", "/"),
pair(":authority", "www.example.com"),
},
[]HeaderField{
pair(":authority", "www.example.com"),
},
57,
},
{dehex("8286 84be 5808 6e6f 2d63 6163 6865"),
[]HeaderField{
pair(":method", "GET"),
pair(":scheme", "http"),
pair(":path", "/"),
pair(":authority", "www.example.com"),
pair("cache-control", "no-cache"),
},
[]HeaderField{
pair("cache-control", "no-cache"),
pair(":authority", "www.example.com"),
},
110,
},
{dehex("8287 85bf 400a 6375 7374 6f6d 2d6b 6579 0c63 7573 746f 6d2d 7661 6c75 65"),
[]HeaderField{
pair(":method", "GET"),
pair(":scheme", "https"),
pair(":path", "/index.html"),
pair(":authority", "www.example.com"),
pair("custom-key", "custom-value"),
},
[]HeaderField{
pair("custom-key", "custom-value"),
pair("cache-control", "no-cache"),
pair(":authority", "www.example.com"),
},
164,
},
})
}
// C.4 Request Examples with Huffman Coding
// http://http2.github.io/http2-spec/compression.html#rfc.section.C.4
func TestDecodeC4_Huffman(t *testing.T) {
testDecodeSeries(t, 4096, []encAndWant{
{dehex("8286 8441 8cf1 e3c2 e5f2 3a6b a0ab 90f4 ff"),
[]HeaderField{
pair(":method", "GET"),
pair(":scheme", "http"),
pair(":path", "/"),
pair(":authority", "www.example.com"),
},
[]HeaderField{
pair(":authority", "www.example.com"),
},
57,
},
{dehex("8286 84be 5886 a8eb 1064 9cbf"),
[]HeaderField{
pair(":method", "GET"),
pair(":scheme", "http"),
pair(":path", "/"),
pair(":authority", "www.example.com"),
pair("cache-control", "no-cache"),
},
[]HeaderField{
pair("cache-control", "no-cache"),
pair(":authority", "www.example.com"),
},
110,
},
{dehex("8287 85bf 4088 25a8 49e9 5ba9 7d7f 8925 a849 e95b b8e8 b4bf"),
[]HeaderField{
pair(":method", "GET"),
pair(":scheme", "https"),
pair(":path", "/index.html"),
pair(":authority", "www.example.com"),
pair("custom-key", "custom-value"),
},
[]HeaderField{
pair("custom-key", "custom-value"),
pair("cache-control", "no-cache"),
pair(":authority", "www.example.com"),
},
164,
},
})
}
// http://http2.github.io/http2-spec/compression.html#rfc.section.C.5
// "This section shows several consecutive header lists, corresponding
// to HTTP responses, on the same connection. The HTTP/2 setting
// parameter SETTINGS_HEADER_TABLE_SIZE is set to the value of 256
// octets, causing some evictions to occur."
func TestDecodeC5_ResponsesNoHuff(t *testing.T) {
testDecodeSeries(t, 256, []encAndWant{
{dehex(`
4803 3330 3258 0770 7269 7661 7465 611d
4d6f 6e2c 2032 3120 4f63 7420 3230 3133
2032 303a 3133 3a32 3120 474d 546e 1768
7474 7073 3a2f 2f77 7777 2e65 7861 6d70
6c65 2e63 6f6d
`),
[]HeaderField{
pair(":status", "302"),
pair("cache-control", "private"),
pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
pair("location", "https://www.example.com"),
},
[]HeaderField{
pair("location", "https://www.example.com"),
pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
pair("cache-control", "private"),
pair(":status", "302"),
},
222,
},
{dehex("4803 3330 37c1 c0bf"),
[]HeaderField{
pair(":status", "307"),
pair("cache-control", "private"),
pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
pair("location", "https://www.example.com"),
},
[]HeaderField{
pair(":status", "307"),
pair("location", "https://www.example.com"),
pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
pair("cache-control", "private"),
},
222,
},
{dehex(`
88c1 611d 4d6f 6e2c 2032 3120 4f63 7420
3230 3133 2032 303a 3133 3a32 3220 474d
54c0 5a04 677a 6970 7738 666f 6f3d 4153
444a 4b48 514b 425a 584f 5157 454f 5049
5541 5851 5745 4f49 553b 206d 6178 2d61
6765 3d33 3630 303b 2076 6572 7369 6f6e
3d31
`),
[]HeaderField{
pair(":status", "200"),
pair("cache-control", "private"),
pair("date", "Mon, 21 Oct 2013 20:13:22 GMT"),
pair("location", "https://www.example.com"),
pair("content-encoding", "gzip"),
pair("set-cookie", "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1"),
},
[]HeaderField{
pair("set-cookie", "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1"),
pair("content-encoding", "gzip"),
pair("date", "Mon, 21 Oct 2013 20:13:22 GMT"),
},
215,
},
})
}
// http://http2.github.io/http2-spec/compression.html#rfc.section.C.6
// "This section shows the same examples as the previous section, but
// using Huffman encoding for the literal values. The HTTP/2 setting
// parameter SETTINGS_HEADER_TABLE_SIZE is set to the value of 256
// octets, causing some evictions to occur. The eviction mechanism
// uses the length of the decoded literal values, so the same
// evictions occurs as in the previous section."
func TestDecodeC6_ResponsesHuffman(t *testing.T) {
testDecodeSeries(t, 256, []encAndWant{
{dehex(`
4882 6402 5885 aec3 771a 4b61 96d0 7abe
9410 54d4 44a8 2005 9504 0b81 66e0 82a6
2d1b ff6e 919d 29ad 1718 63c7 8f0b 97c8
e9ae 82ae 43d3
`),
[]HeaderField{
pair(":status", "302"),
pair("cache-control", "private"),
pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
pair("location", "https://www.example.com"),
},
[]HeaderField{
pair("location", "https://www.example.com"),
pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
pair("cache-control", "private"),
pair(":status", "302"),
},
222,
},
{dehex("4883 640e ffc1 c0bf"),
[]HeaderField{
pair(":status", "307"),
pair("cache-control", "private"),
pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
pair("location", "https://www.example.com"),
},
[]HeaderField{
pair(":status", "307"),
pair("location", "https://www.example.com"),
pair("date", "Mon, 21 Oct 2013 20:13:21 GMT"),
pair("cache-control", "private"),
},
222,
},
{dehex(`
88c1 6196 d07a be94 1054 d444 a820 0595
040b 8166 e084 a62d 1bff c05a 839b d9ab
77ad 94e7 821d d7f2 e6c7 b335 dfdf cd5b
3960 d5af 2708 7f36 72c1 ab27 0fb5 291f
9587 3160 65c0 03ed 4ee5 b106 3d50 07
`),
[]HeaderField{
pair(":status", "200"),
pair("cache-control", "private"),
pair("date", "Mon, 21 Oct 2013 20:13:22 GMT"),
pair("location", "https://www.example.com"),
pair("content-encoding", "gzip"),
pair("set-cookie", "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1"),
},
[]HeaderField{
pair("set-cookie", "foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1"),
pair("content-encoding", "gzip"),
pair("date", "Mon, 21 Oct 2013 20:13:22 GMT"),
},
215,
},
})
}
func testDecodeSeries(t *testing.T, size uint32, steps []encAndWant) {
d := NewDecoder(size, nil)
for i, step := range steps {
hf, err := d.DecodeFull(step.enc)
if err != nil {
t.Fatalf("Error at step index %d: %v", i, err)
}
if !reflect.DeepEqual(hf, step.want) {
t.Fatalf("At step index %d: Got headers %v; want %v", i, hf, step.want)
}
gotDynTab := d.dynTab.reverseCopy()
if !reflect.DeepEqual(gotDynTab, step.wantDynTab) {
t.Errorf("After step index %d, dynamic table = %v; want %v", i, gotDynTab, step.wantDynTab)
}
if d.dynTab.size != step.wantDynSize {
t.Errorf("After step index %d, dynamic table size = %v; want %v", i, d.dynTab.size, step.wantDynSize)
}
}
}
func TestHuffmanDecode(t *testing.T) {
tests := []struct {
inHex, want string
}{
{"f1e3 c2e5 f23a 6ba0 ab90 f4ff", "www.example.com"},
{"a8eb 1064 9cbf", "no-cache"},
{"25a8 49e9 5ba9 7d7f", "custom-key"},
{"25a8 49e9 5bb8 e8b4 bf", "custom-value"},
{"6402", "302"},
{"aec3 771a 4b", "private"},
{"d07a be94 1054 d444 a820 0595 040b 8166 e082 a62d 1bff", "Mon, 21 Oct 2013 20:13:21 GMT"},
{"9d29 ad17 1863 c78f 0b97 c8e9 ae82 ae43 d3", "https://www.example.com"},
{"9bd9 ab", "gzip"},
{"94e7 821d d7f2 e6c7 b335 dfdf cd5b 3960 d5af 2708 7f36 72c1 ab27 0fb5 291f 9587 3160 65c0 03ed 4ee5 b106 3d50 07",
"foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1"},
}
for i, tt := range tests {
var buf bytes.Buffer
in, err := hex.DecodeString(strings.Replace(tt.inHex, " ", "", -1))
if err != nil {
t.Errorf("%d. hex input error: %v", i, err)
continue
}
if _, err := HuffmanDecode(&buf, in); err != nil {
t.Errorf("%d. decode error: %v", i, err)
continue
}
if got := buf.String(); tt.want != got {
t.Errorf("%d. decode = %q; want %q", i, got, tt.want)
}
}
}
func TestAppendHuffmanString(t *testing.T) {
tests := []struct {
in, want string
}{
{"www.example.com", "f1e3 c2e5 f23a 6ba0 ab90 f4ff"},
{"no-cache", "a8eb 1064 9cbf"},
{"custom-key", "25a8 49e9 5ba9 7d7f"},
{"custom-value", "25a8 49e9 5bb8 e8b4 bf"},
{"302", "6402"},
{"private", "aec3 771a 4b"},
{"Mon, 21 Oct 2013 20:13:21 GMT", "d07a be94 1054 d444 a820 0595 040b 8166 e082 a62d 1bff"},
{"https://www.example.com", "9d29 ad17 1863 c78f 0b97 c8e9 ae82 ae43 d3"},
{"gzip", "9bd9 ab"},
{"foo=ASDJKHQKBZXOQWEOPIUAXQWEOIU; max-age=3600; version=1",
"94e7 821d d7f2 e6c7 b335 dfdf cd5b 3960 d5af 2708 7f36 72c1 ab27 0fb5 291f 9587 3160 65c0 03ed 4ee5 b106 3d50 07"},
}
for i, tt := range tests {
buf := []byte{}
want := strings.Replace(tt.want, " ", "", -1)
buf = AppendHuffmanString(buf, tt.in)
if got := hex.EncodeToString(buf); want != got {
t.Errorf("%d. encode = %q; want %q", i, got, want)
}
}
}
func TestReadVarInt(t *testing.T) {
type res struct {
i uint64
consumed int
err error
}
tests := []struct {
n byte
p []byte
want res
}{
// Fits in a byte:
{1, []byte{0}, res{0, 1, nil}},
{2, []byte{2}, res{2, 1, nil}},
{3, []byte{6}, res{6, 1, nil}},
{4, []byte{14}, res{14, 1, nil}},
{5, []byte{30}, res{30, 1, nil}},
{6, []byte{62}, res{62, 1, nil}},
{7, []byte{126}, res{126, 1, nil}},
{8, []byte{254}, res{254, 1, nil}},
// Doesn't fit in a byte:
{1, []byte{1}, res{0, 0, errNeedMore}},
{2, []byte{3}, res{0, 0, errNeedMore}},
{3, []byte{7}, res{0, 0, errNeedMore}},
{4, []byte{15}, res{0, 0, errNeedMore}},
{5, []byte{31}, res{0, 0, errNeedMore}},
{6, []byte{63}, res{0, 0, errNeedMore}},
{7, []byte{127}, res{0, 0, errNeedMore}},
{8, []byte{255}, res{0, 0, errNeedMore}},
// Ignoring top bits:
{5, []byte{255, 154, 10}, res{1337, 3, nil}}, // high dummy three bits: 111
{5, []byte{159, 154, 10}, res{1337, 3, nil}}, // high dummy three bits: 100
{5, []byte{191, 154, 10}, res{1337, 3, nil}}, // high dummy three bits: 101
// Extra byte:
{5, []byte{191, 154, 10, 2}, res{1337, 3, nil}}, // extra byte
// Short a byte:
{5, []byte{191, 154}, res{0, 0, errNeedMore}},
// integer overflow:
{1, []byte{255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128}, res{0, 0, errVarintOverflow}},
}
for _, tt := range tests {
i, remain, err := readVarInt(tt.n, tt.p)
consumed := len(tt.p) - len(remain)
got := res{i, consumed, err}
if got != tt.want {
t.Errorf("readVarInt(%d, %v ~ %x) = %+v; want %+v", tt.n, tt.p, tt.p, got, tt.want)
}
}
}
func dehex(s string) []byte {
s = strings.Replace(s, " ", "", -1)
s = strings.Replace(s, "\n", "", -1)
b, err := hex.DecodeString(s)
if err != nil {
panic(err)
}
return b
}

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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package hpack
import (
"bytes"
"io"
"sync"
)
var bufPool = sync.Pool{
New: func() interface{} { return new(bytes.Buffer) },
}
// HuffmanDecode decodes the string in v and writes the expanded
// result to w, returning the number of bytes written to w and the
// Write call's return value. At most one Write call is made.
func HuffmanDecode(w io.Writer, v []byte) (int, error) {
buf := bufPool.Get().(*bytes.Buffer)
buf.Reset()
defer bufPool.Put(buf)
n := rootHuffmanNode
cur, nbits := uint(0), uint8(0)
for _, b := range v {
cur = cur<<8 | uint(b)
nbits += 8
for nbits >= 8 {
n = n.children[byte(cur>>(nbits-8))]
if n.children == nil {
buf.WriteByte(n.sym)
nbits -= n.codeLen
n = rootHuffmanNode
} else {
nbits -= 8
}
}
}
for nbits > 0 {
n = n.children[byte(cur<<(8-nbits))]
if n.children != nil || n.codeLen > nbits {
break
}
buf.WriteByte(n.sym)
nbits -= n.codeLen
n = rootHuffmanNode
}
return w.Write(buf.Bytes())
}
type node struct {
// children is non-nil for internal nodes
children []*node
// The following are only valid if children is nil:
codeLen uint8 // number of bits that led to the output of sym
sym byte // output symbol
}
func newInternalNode() *node {
return &node{children: make([]*node, 256)}
}
var rootHuffmanNode = newInternalNode()
func init() {
for i, code := range huffmanCodes {
if i > 255 {
panic("too many huffman codes")
}
addDecoderNode(byte(i), code, huffmanCodeLen[i])
}
}
func addDecoderNode(sym byte, code uint32, codeLen uint8) {
cur := rootHuffmanNode
for codeLen > 8 {
codeLen -= 8
i := uint8(code >> codeLen)
if cur.children[i] == nil {
cur.children[i] = newInternalNode()
}
cur = cur.children[i]
}
shift := 8 - codeLen
start, end := int(uint8(code<<shift)), int(1<<shift)
for i := start; i < start+end; i++ {
cur.children[i] = &node{sym: sym, codeLen: codeLen}
}
}
// AppendHuffmanString appends s, as encoded in Huffman codes, to dst
// and returns the extended buffer.
func AppendHuffmanString(dst []byte, s string) []byte {
rembits := uint8(8)
for i := 0; i < len(s); i++ {
if rembits == 8 {
dst = append(dst, 0)
}
dst, rembits = appendByteToHuffmanCode(dst, rembits, s[i])
}
if rembits < 8 {
// special EOS symbol
code := uint32(0x3fffffff)
nbits := uint8(30)
t := uint8(code >> (nbits - rembits))
dst[len(dst)-1] |= t
}
return dst
}
// HuffmanEncodeLength returns the number of bytes required to encode
// s in Huffman codes. The result is round up to byte boundary.
func HuffmanEncodeLength(s string) uint64 {
n := uint64(0)
for i := 0; i < len(s); i++ {
n += uint64(huffmanCodeLen[s[i]])
}
return (n + 7) / 8
}
// appendByteToHuffmanCode appends Huffman code for c to dst and
// returns the extended buffer and the remaining bits in the last
// element. The appending is not byte aligned and the remaining bits
// in the last element of dst is given in rembits.
func appendByteToHuffmanCode(dst []byte, rembits uint8, c byte) ([]byte, uint8) {
code := huffmanCodes[c]
nbits := huffmanCodeLen[c]
for {
if rembits > nbits {
t := uint8(code << (rembits - nbits))
dst[len(dst)-1] |= t
rembits -= nbits
break
}
t := uint8(code >> (nbits - rembits))
dst[len(dst)-1] |= t
nbits -= rembits
rembits = 8
if nbits == 0 {
break
}
dst = append(dst, 0)
}
return dst, rembits
}

353
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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package hpack
func pair(name, value string) HeaderField {
return HeaderField{Name: name, Value: value}
}
// http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-07#appendix-B
var staticTable = []HeaderField{
pair(":authority", ""), // index 1 (1-based)
pair(":method", "GET"),
pair(":method", "POST"),
pair(":path", "/"),
pair(":path", "/index.html"),
pair(":scheme", "http"),
pair(":scheme", "https"),
pair(":status", "200"),
pair(":status", "204"),
pair(":status", "206"),
pair(":status", "304"),
pair(":status", "400"),
pair(":status", "404"),
pair(":status", "500"),
pair("accept-charset", ""),
pair("accept-encoding", "gzip, deflate"),
pair("accept-language", ""),
pair("accept-ranges", ""),
pair("accept", ""),
pair("access-control-allow-origin", ""),
pair("age", ""),
pair("allow", ""),
pair("authorization", ""),
pair("cache-control", ""),
pair("content-disposition", ""),
pair("content-encoding", ""),
pair("content-language", ""),
pair("content-length", ""),
pair("content-location", ""),
pair("content-range", ""),
pair("content-type", ""),
pair("cookie", ""),
pair("date", ""),
pair("etag", ""),
pair("expect", ""),
pair("expires", ""),
pair("from", ""),
pair("host", ""),
pair("if-match", ""),
pair("if-modified-since", ""),
pair("if-none-match", ""),
pair("if-range", ""),
pair("if-unmodified-since", ""),
pair("last-modified", ""),
pair("link", ""),
pair("location", ""),
pair("max-forwards", ""),
pair("proxy-authenticate", ""),
pair("proxy-authorization", ""),
pair("range", ""),
pair("referer", ""),
pair("refresh", ""),
pair("retry-after", ""),
pair("server", ""),
pair("set-cookie", ""),
pair("strict-transport-security", ""),
pair("transfer-encoding", ""),
pair("user-agent", ""),
pair("vary", ""),
pair("via", ""),
pair("www-authenticate", ""),
}
var huffmanCodes = []uint32{
0x1ff8,
0x7fffd8,
0xfffffe2,
0xfffffe3,
0xfffffe4,
0xfffffe5,
0xfffffe6,
0xfffffe7,
0xfffffe8,
0xffffea,
0x3ffffffc,
0xfffffe9,
0xfffffea,
0x3ffffffd,
0xfffffeb,
0xfffffec,
0xfffffed,
0xfffffee,
0xfffffef,
0xffffff0,
0xffffff1,
0xffffff2,
0x3ffffffe,
0xffffff3,
0xffffff4,
0xffffff5,
0xffffff6,
0xffffff7,
0xffffff8,
0xffffff9,
0xffffffa,
0xffffffb,
0x14,
0x3f8,
0x3f9,
0xffa,
0x1ff9,
0x15,
0xf8,
0x7fa,
0x3fa,
0x3fb,
0xf9,
0x7fb,
0xfa,
0x16,
0x17,
0x18,
0x0,
0x1,
0x2,
0x19,
0x1a,
0x1b,
0x1c,
0x1d,
0x1e,
0x1f,
0x5c,
0xfb,
0x7ffc,
0x20,
0xffb,
0x3fc,
0x1ffa,
0x21,
0x5d,
0x5e,
0x5f,
0x60,
0x61,
0x62,
0x63,
0x64,
0x65,
0x66,
0x67,
0x68,
0x69,
0x6a,
0x6b,
0x6c,
0x6d,
0x6e,
0x6f,
0x70,
0x71,
0x72,
0xfc,
0x73,
0xfd,
0x1ffb,
0x7fff0,
0x1ffc,
0x3ffc,
0x22,
0x7ffd,
0x3,
0x23,
0x4,
0x24,
0x5,
0x25,
0x26,
0x27,
0x6,
0x74,
0x75,
0x28,
0x29,
0x2a,
0x7,
0x2b,
0x76,
0x2c,
0x8,
0x9,
0x2d,
0x77,
0x78,
0x79,
0x7a,
0x7b,
0x7ffe,
0x7fc,
0x3ffd,
0x1ffd,
0xffffffc,
0xfffe6,
0x3fffd2,
0xfffe7,
0xfffe8,
0x3fffd3,
0x3fffd4,
0x3fffd5,
0x7fffd9,
0x3fffd6,
0x7fffda,
0x7fffdb,
0x7fffdc,
0x7fffdd,
0x7fffde,
0xffffeb,
0x7fffdf,
0xffffec,
0xffffed,
0x3fffd7,
0x7fffe0,
0xffffee,
0x7fffe1,
0x7fffe2,
0x7fffe3,
0x7fffe4,
0x1fffdc,
0x3fffd8,
0x7fffe5,
0x3fffd9,
0x7fffe6,
0x7fffe7,
0xffffef,
0x3fffda,
0x1fffdd,
0xfffe9,
0x3fffdb,
0x3fffdc,
0x7fffe8,
0x7fffe9,
0x1fffde,
0x7fffea,
0x3fffdd,
0x3fffde,
0xfffff0,
0x1fffdf,
0x3fffdf,
0x7fffeb,
0x7fffec,
0x1fffe0,
0x1fffe1,
0x3fffe0,
0x1fffe2,
0x7fffed,
0x3fffe1,
0x7fffee,
0x7fffef,
0xfffea,
0x3fffe2,
0x3fffe3,
0x3fffe4,
0x7ffff0,
0x3fffe5,
0x3fffe6,
0x7ffff1,
0x3ffffe0,
0x3ffffe1,
0xfffeb,
0x7fff1,
0x3fffe7,
0x7ffff2,
0x3fffe8,
0x1ffffec,
0x3ffffe2,
0x3ffffe3,
0x3ffffe4,
0x7ffffde,
0x7ffffdf,
0x3ffffe5,
0xfffff1,
0x1ffffed,
0x7fff2,
0x1fffe3,
0x3ffffe6,
0x7ffffe0,
0x7ffffe1,
0x3ffffe7,
0x7ffffe2,
0xfffff2,
0x1fffe4,
0x1fffe5,
0x3ffffe8,
0x3ffffe9,
0xffffffd,
0x7ffffe3,
0x7ffffe4,
0x7ffffe5,
0xfffec,
0xfffff3,
0xfffed,
0x1fffe6,
0x3fffe9,
0x1fffe7,
0x1fffe8,
0x7ffff3,
0x3fffea,
0x3fffeb,
0x1ffffee,
0x1ffffef,
0xfffff4,
0xfffff5,
0x3ffffea,
0x7ffff4,
0x3ffffeb,
0x7ffffe6,
0x3ffffec,
0x3ffffed,
0x7ffffe7,
0x7ffffe8,
0x7ffffe9,
0x7ffffea,
0x7ffffeb,
0xffffffe,
0x7ffffec,
0x7ffffed,
0x7ffffee,
0x7ffffef,
0x7fffff0,
0x3ffffee,
}
var huffmanCodeLen = []uint8{
13, 23, 28, 28, 28, 28, 28, 28, 28, 24, 30, 28, 28, 30, 28, 28,
28, 28, 28, 28, 28, 28, 30, 28, 28, 28, 28, 28, 28, 28, 28, 28,
6, 10, 10, 12, 13, 6, 8, 11, 10, 10, 8, 11, 8, 6, 6, 6,
5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 7, 8, 15, 6, 12, 10,
13, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 8, 7, 8, 13, 19, 13, 14, 6,
15, 5, 6, 5, 6, 5, 6, 6, 6, 5, 7, 7, 6, 6, 6, 5,
6, 7, 6, 5, 5, 6, 7, 7, 7, 7, 7, 15, 11, 14, 13, 28,
20, 22, 20, 20, 22, 22, 22, 23, 22, 23, 23, 23, 23, 23, 24, 23,
24, 24, 22, 23, 24, 23, 23, 23, 23, 21, 22, 23, 22, 23, 23, 24,
22, 21, 20, 22, 22, 23, 23, 21, 23, 22, 22, 24, 21, 22, 23, 23,
21, 21, 22, 21, 23, 22, 23, 23, 20, 22, 22, 22, 23, 22, 22, 23,
26, 26, 20, 19, 22, 23, 22, 25, 26, 26, 26, 27, 27, 26, 24, 25,
19, 21, 26, 27, 27, 26, 27, 24, 21, 21, 26, 26, 28, 27, 27, 27,
20, 24, 20, 21, 22, 21, 21, 23, 22, 22, 25, 25, 24, 24, 26, 23,
26, 27, 26, 26, 27, 27, 27, 27, 27, 28, 27, 27, 27, 27, 27, 26,
}

249
Godeps/_workspace/src/github.com/bradfitz/http2/http2.go generated vendored Normal file
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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
// Package http2 implements the HTTP/2 protocol.
//
// This is a work in progress. This package is low-level and intended
// to be used directly by very few people. Most users will use it
// indirectly through integration with the net/http package. See
// ConfigureServer. That ConfigureServer call will likely be automatic
// or available via an empty import in the future.
//
// See http://http2.github.io/
package http2
import (
"bufio"
"fmt"
"io"
"net/http"
"strconv"
"sync"
)
var VerboseLogs = false
const (
// ClientPreface is the string that must be sent by new
// connections from clients.
ClientPreface = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
// SETTINGS_MAX_FRAME_SIZE default
// http://http2.github.io/http2-spec/#rfc.section.6.5.2
initialMaxFrameSize = 16384
// NextProtoTLS is the NPN/ALPN protocol negotiated during
// HTTP/2's TLS setup.
NextProtoTLS = "h2"
// http://http2.github.io/http2-spec/#SettingValues
initialHeaderTableSize = 4096
initialWindowSize = 65535 // 6.9.2 Initial Flow Control Window Size
defaultMaxReadFrameSize = 1 << 20
)
var (
clientPreface = []byte(ClientPreface)
)
type streamState int
const (
stateIdle streamState = iota
stateOpen
stateHalfClosedLocal
stateHalfClosedRemote
stateResvLocal
stateResvRemote
stateClosed
)
var stateName = [...]string{
stateIdle: "Idle",
stateOpen: "Open",
stateHalfClosedLocal: "HalfClosedLocal",
stateHalfClosedRemote: "HalfClosedRemote",
stateResvLocal: "ResvLocal",
stateResvRemote: "ResvRemote",
stateClosed: "Closed",
}
func (st streamState) String() string {
return stateName[st]
}
// Setting is a setting parameter: which setting it is, and its value.
type Setting struct {
// ID is which setting is being set.
// See http://http2.github.io/http2-spec/#SettingValues
ID SettingID
// Val is the value.
Val uint32
}
func (s Setting) String() string {
return fmt.Sprintf("[%v = %d]", s.ID, s.Val)
}
// Valid reports whether the setting is valid.
func (s Setting) Valid() error {
// Limits and error codes from 6.5.2 Defined SETTINGS Parameters
switch s.ID {
case SettingEnablePush:
if s.Val != 1 && s.Val != 0 {
return ConnectionError(ErrCodeProtocol)
}
case SettingInitialWindowSize:
if s.Val > 1<<31-1 {
return ConnectionError(ErrCodeFlowControl)
}
case SettingMaxFrameSize:
if s.Val < 16384 || s.Val > 1<<24-1 {
return ConnectionError(ErrCodeProtocol)
}
}
return nil
}
// A SettingID is an HTTP/2 setting as defined in
// http://http2.github.io/http2-spec/#iana-settings
type SettingID uint16
const (
SettingHeaderTableSize SettingID = 0x1
SettingEnablePush SettingID = 0x2
SettingMaxConcurrentStreams SettingID = 0x3
SettingInitialWindowSize SettingID = 0x4
SettingMaxFrameSize SettingID = 0x5
SettingMaxHeaderListSize SettingID = 0x6
)
var settingName = map[SettingID]string{
SettingHeaderTableSize: "HEADER_TABLE_SIZE",
SettingEnablePush: "ENABLE_PUSH",
SettingMaxConcurrentStreams: "MAX_CONCURRENT_STREAMS",
SettingInitialWindowSize: "INITIAL_WINDOW_SIZE",
SettingMaxFrameSize: "MAX_FRAME_SIZE",
SettingMaxHeaderListSize: "MAX_HEADER_LIST_SIZE",
}
func (s SettingID) String() string {
if v, ok := settingName[s]; ok {
return v
}
return fmt.Sprintf("UNKNOWN_SETTING_%d", uint16(s))
}
func validHeader(v string) bool {
if len(v) == 0 {
return false
}
for _, r := range v {
// "Just as in HTTP/1.x, header field names are
// strings of ASCII characters that are compared in a
// case-insensitive fashion. However, header field
// names MUST be converted to lowercase prior to their
// encoding in HTTP/2. "
if r >= 127 || ('A' <= r && r <= 'Z') {
return false
}
}
return true
}
var httpCodeStringCommon = map[int]string{} // n -> strconv.Itoa(n)
func init() {
for i := 100; i <= 999; i++ {
if v := http.StatusText(i); v != "" {
httpCodeStringCommon[i] = strconv.Itoa(i)
}
}
}
func httpCodeString(code int) string {
if s, ok := httpCodeStringCommon[code]; ok {
return s
}
return strconv.Itoa(code)
}
// from pkg io
type stringWriter interface {
WriteString(s string) (n int, err error)
}
// A gate lets two goroutines coordinate their activities.
type gate chan struct{}
func (g gate) Done() { g <- struct{}{} }
func (g gate) Wait() { <-g }
// A closeWaiter is like a sync.WaitGroup but only goes 1 to 0 (open to closed).
type closeWaiter chan struct{}
// Init makes a closeWaiter usable.
// It exists because so a closeWaiter value can be placed inside a
// larger struct and have the Mutex and Cond's memory in the same
// allocation.
func (cw *closeWaiter) Init() {
*cw = make(chan struct{})
}
// Close marks the closeWaiter as closed and unblocks any waiters.
func (cw closeWaiter) Close() {
close(cw)
}
// Wait waits for the closeWaiter to become closed.
func (cw closeWaiter) Wait() {
<-cw
}
// bufferedWriter is a buffered writer that writes to w.
// Its buffered writer is lazily allocated as needed, to minimize
// idle memory usage with many connections.
type bufferedWriter struct {
w io.Writer // immutable
bw *bufio.Writer // non-nil when data is buffered
}
func newBufferedWriter(w io.Writer) *bufferedWriter {
return &bufferedWriter{w: w}
}
var bufWriterPool = sync.Pool{
New: func() interface{} {
// TODO: pick something better? this is a bit under
// (3 x typical 1500 byte MTU) at least.
return bufio.NewWriterSize(nil, 4<<10)
},
}
func (w *bufferedWriter) Write(p []byte) (n int, err error) {
if w.bw == nil {
bw := bufWriterPool.Get().(*bufio.Writer)
bw.Reset(w.w)
w.bw = bw
}
return w.bw.Write(p)
}
func (w *bufferedWriter) Flush() error {
bw := w.bw
if bw == nil {
return nil
}
err := bw.Flush()
bw.Reset(nil)
bufWriterPool.Put(bw)
w.bw = nil
return err
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"bytes"
"errors"
"flag"
"fmt"
"net/http"
"os/exec"
"strconv"
"strings"
"testing"
"github.com/bradfitz/http2/hpack"
)
var knownFailing = flag.Bool("known_failing", false, "Run known-failing tests.")
func condSkipFailingTest(t *testing.T) {
if !*knownFailing {
t.Skip("Skipping known-failing test without --known_failing")
}
}
func init() {
DebugGoroutines = true
flag.BoolVar(&VerboseLogs, "verboseh2", false, "Verbose HTTP/2 debug logging")
}
func TestSettingString(t *testing.T) {
tests := []struct {
s Setting
want string
}{
{Setting{SettingMaxFrameSize, 123}, "[MAX_FRAME_SIZE = 123]"},
{Setting{1<<16 - 1, 123}, "[UNKNOWN_SETTING_65535 = 123]"},
}
for i, tt := range tests {
got := fmt.Sprint(tt.s)
if got != tt.want {
t.Errorf("%d. for %#v, string = %q; want %q", i, tt.s, got, tt.want)
}
}
}
type twriter struct {
t testing.TB
st *serverTester // optional
}
func (w twriter) Write(p []byte) (n int, err error) {
if w.st != nil {
ps := string(p)
for _, phrase := range w.st.logFilter {
if strings.Contains(ps, phrase) {
return len(p), nil // no logging
}
}
}
w.t.Logf("%s", p)
return len(p), nil
}
// like encodeHeader, but don't add implicit psuedo headers.
func encodeHeaderNoImplicit(t *testing.T, headers ...string) []byte {
var buf bytes.Buffer
enc := hpack.NewEncoder(&buf)
for len(headers) > 0 {
k, v := headers[0], headers[1]
headers = headers[2:]
if err := enc.WriteField(hpack.HeaderField{Name: k, Value: v}); err != nil {
t.Fatalf("HPACK encoding error for %q/%q: %v", k, v, err)
}
}
return buf.Bytes()
}
// Verify that curl has http2.
func requireCurl(t *testing.T) {
out, err := dockerLogs(curl(t, "--version"))
if err != nil {
t.Skipf("failed to determine curl features; skipping test")
}
if !strings.Contains(string(out), "HTTP2") {
t.Skip("curl doesn't support HTTP2; skipping test")
}
}
func curl(t *testing.T, args ...string) (container string) {
out, err := exec.Command("docker", append([]string{"run", "-d", "--net=host", "gohttp2/curl"}, args...)...).CombinedOutput()
if err != nil {
t.Skipf("Failed to run curl in docker: %v, %s", err, out)
}
return strings.TrimSpace(string(out))
}
type puppetCommand struct {
fn func(w http.ResponseWriter, r *http.Request)
done chan<- bool
}
type handlerPuppet struct {
ch chan puppetCommand
}
func newHandlerPuppet() *handlerPuppet {
return &handlerPuppet{
ch: make(chan puppetCommand),
}
}
func (p *handlerPuppet) act(w http.ResponseWriter, r *http.Request) {
for cmd := range p.ch {
cmd.fn(w, r)
cmd.done <- true
}
}
func (p *handlerPuppet) done() { close(p.ch) }
func (p *handlerPuppet) do(fn func(http.ResponseWriter, *http.Request)) {
done := make(chan bool)
p.ch <- puppetCommand{fn, done}
<-done
}
func dockerLogs(container string) ([]byte, error) {
out, err := exec.Command("docker", "wait", container).CombinedOutput()
if err != nil {
return out, err
}
exitStatus, err := strconv.Atoi(strings.TrimSpace(string(out)))
if err != nil {
return out, errors.New("unexpected exit status from docker wait")
}
out, err = exec.Command("docker", "logs", container).CombinedOutput()
exec.Command("docker", "rm", container).Run()
if err == nil && exitStatus != 0 {
err = fmt.Errorf("exit status %d: %s", exitStatus, out)
}
return out, err
}
func kill(container string) {
exec.Command("docker", "kill", container).Run()
exec.Command("docker", "rm", container).Run()
}

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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"sync"
)
type pipe struct {
b buffer
c sync.Cond
m sync.Mutex
}
// Read waits until data is available and copies bytes
// from the buffer into p.
func (r *pipe) Read(p []byte) (n int, err error) {
r.c.L.Lock()
defer r.c.L.Unlock()
for r.b.Len() == 0 && !r.b.closed {
r.c.Wait()
}
return r.b.Read(p)
}
// Write copies bytes from p into the buffer and wakes a reader.
// It is an error to write more data than the buffer can hold.
func (w *pipe) Write(p []byte) (n int, err error) {
w.c.L.Lock()
defer w.c.L.Unlock()
defer w.c.Signal()
return w.b.Write(p)
}
func (c *pipe) Close(err error) {
c.c.L.Lock()
defer c.c.L.Unlock()
defer c.c.Signal()
c.b.Close(err)
}

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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"errors"
"testing"
)
func TestPipeClose(t *testing.T) {
var p pipe
p.c.L = &p.m
a := errors.New("a")
b := errors.New("b")
p.Close(a)
p.Close(b)
_, err := p.Read(make([]byte, 1))
if err != a {
t.Errorf("err = %v want %v", err, a)
}
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"testing"
)
func TestPriority(t *testing.T) {
// A -> B
// move A's parent to B
streams := make(map[uint32]*stream)
a := &stream{
parent: nil,
weight: 16,
}
streams[1] = a
b := &stream{
parent: a,
weight: 16,
}
streams[2] = b
adjustStreamPriority(streams, 1, PriorityParam{
Weight: 20,
StreamDep: 2,
})
if a.parent != b {
t.Errorf("Expected A's parent to be B")
}
if a.weight != 20 {
t.Errorf("Expected A's weight to be 20; got %d", a.weight)
}
if b.parent != nil {
t.Errorf("Expected B to have no parent")
}
if b.weight != 16 {
t.Errorf("Expected B's weight to be 16; got %d", b.weight)
}
}
func TestPriorityExclusiveZero(t *testing.T) {
// A B and C are all children of the 0 stream.
// Exclusive reprioritization to any of the streams
// should bring the rest of the streams under the
// reprioritized stream
streams := make(map[uint32]*stream)
a := &stream{
parent: nil,
weight: 16,
}
streams[1] = a
b := &stream{
parent: nil,
weight: 16,
}
streams[2] = b
c := &stream{
parent: nil,
weight: 16,
}
streams[3] = c
adjustStreamPriority(streams, 3, PriorityParam{
Weight: 20,
StreamDep: 0,
Exclusive: true,
})
if a.parent != c {
t.Errorf("Expected A's parent to be C")
}
if a.weight != 16 {
t.Errorf("Expected A's weight to be 16; got %d", a.weight)
}
if b.parent != c {
t.Errorf("Expected B's parent to be C")
}
if b.weight != 16 {
t.Errorf("Expected B's weight to be 16; got %d", b.weight)
}
if c.parent != nil {
t.Errorf("Expected C to have no parent")
}
if c.weight != 20 {
t.Errorf("Expected C's weight to be 20; got %d", b.weight)
}
}
func TestPriorityOwnParent(t *testing.T) {
streams := make(map[uint32]*stream)
a := &stream{
parent: nil,
weight: 16,
}
streams[1] = a
b := &stream{
parent: a,
weight: 16,
}
streams[2] = b
adjustStreamPriority(streams, 1, PriorityParam{
Weight: 20,
StreamDep: 1,
})
if a.parent != nil {
t.Errorf("Expected A's parent to be nil")
}
if a.weight != 20 {
t.Errorf("Expected A's weight to be 20; got %d", a.weight)
}
if b.parent != a {
t.Errorf("Expected B's parent to be A")
}
if b.weight != 16 {
t.Errorf("Expected B's weight to be 16; got %d", b.weight)
}
}

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// Copyright 2015 The Go Authors.
// See https://go.googlesource.com/go/+/master/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://go.googlesource.com/go/+/master/LICENSE
package http2
import (
"bufio"
"bytes"
"crypto/tls"
"errors"
"fmt"
"io"
"log"
"net"
"net/http"
"strconv"
"strings"
"sync"
"github.com/bradfitz/http2/hpack"
)
type Transport struct {
Fallback http.RoundTripper
// TODO: remove this and make more general with a TLS dial hook, like http
InsecureTLSDial bool
connMu sync.Mutex
conns map[string][]*clientConn // key is host:port
}
type clientConn struct {
t *Transport
tconn *tls.Conn
tlsState *tls.ConnectionState
connKey []string // key(s) this connection is cached in, in t.conns
readerDone chan struct{} // closed on error
readerErr error // set before readerDone is closed
hdec *hpack.Decoder
nextRes *http.Response
mu sync.Mutex
closed bool
goAway *GoAwayFrame // if non-nil, the GoAwayFrame we received
streams map[uint32]*clientStream
nextStreamID uint32
bw *bufio.Writer
werr error // first write error that has occurred
br *bufio.Reader
fr *Framer
// Settings from peer:
maxFrameSize uint32
maxConcurrentStreams uint32
initialWindowSize uint32
hbuf bytes.Buffer // HPACK encoder writes into this
henc *hpack.Encoder
}
type clientStream struct {
ID uint32
resc chan resAndError
pw *io.PipeWriter
pr *io.PipeReader
}
type stickyErrWriter struct {
w io.Writer
err *error
}
func (sew stickyErrWriter) Write(p []byte) (n int, err error) {
if *sew.err != nil {
return 0, *sew.err
}
n, err = sew.w.Write(p)
*sew.err = err
return
}
func (t *Transport) RoundTrip(req *http.Request) (*http.Response, error) {
if req.URL.Scheme != "https" {
if t.Fallback == nil {
return nil, errors.New("http2: unsupported scheme and no Fallback")
}
return t.Fallback.RoundTrip(req)
}
host, port, err := net.SplitHostPort(req.URL.Host)
if err != nil {
host = req.URL.Host
port = "443"
}
for {
cc, err := t.getClientConn(host, port)
if err != nil {
return nil, err
}
res, err := cc.roundTrip(req)
if shouldRetryRequest(err) { // TODO: or clientconn is overloaded (too many outstanding requests)?
continue
}
if err != nil {
return nil, err
}
return res, nil
}
}
// CloseIdleConnections closes any connections which were previously
// connected from previous requests but are now sitting idle.
// It does not interrupt any connections currently in use.
func (t *Transport) CloseIdleConnections() {
t.connMu.Lock()
defer t.connMu.Unlock()
for _, vv := range t.conns {
for _, cc := range vv {
cc.closeIfIdle()
}
}
}
var errClientConnClosed = errors.New("http2: client conn is closed")
func shouldRetryRequest(err error) bool {
// TODO: or GOAWAY graceful shutdown stuff
return err == errClientConnClosed
}
func (t *Transport) removeClientConn(cc *clientConn) {
t.connMu.Lock()
defer t.connMu.Unlock()
for _, key := range cc.connKey {
vv, ok := t.conns[key]
if !ok {
continue
}
newList := filterOutClientConn(vv, cc)
if len(newList) > 0 {
t.conns[key] = newList
} else {
delete(t.conns, key)
}
}
}
func filterOutClientConn(in []*clientConn, exclude *clientConn) []*clientConn {
out := in[:0]
for _, v := range in {
if v != exclude {
out = append(out, v)
}
}
return out
}
func (t *Transport) getClientConn(host, port string) (*clientConn, error) {
t.connMu.Lock()
defer t.connMu.Unlock()
key := net.JoinHostPort(host, port)
for _, cc := range t.conns[key] {
if cc.canTakeNewRequest() {
return cc, nil
}
}
if t.conns == nil {
t.conns = make(map[string][]*clientConn)
}
cc, err := t.newClientConn(host, port, key)
if err != nil {
return nil, err
}
t.conns[key] = append(t.conns[key], cc)
return cc, nil
}
func (t *Transport) newClientConn(host, port, key string) (*clientConn, error) {
cfg := &tls.Config{
ServerName: host,
NextProtos: []string{NextProtoTLS},
InsecureSkipVerify: t.InsecureTLSDial,
}
tconn, err := tls.Dial("tcp", host+":"+port, cfg)
if err != nil {
return nil, err
}
if err := tconn.Handshake(); err != nil {
return nil, err
}
if !t.InsecureTLSDial {
if err := tconn.VerifyHostname(cfg.ServerName); err != nil {
return nil, err
}
}
state := tconn.ConnectionState()
if p := state.NegotiatedProtocol; p != NextProtoTLS {
// TODO(bradfitz): fall back to Fallback
return nil, fmt.Errorf("bad protocol: %v", p)
}
if !state.NegotiatedProtocolIsMutual {
return nil, errors.New("could not negotiate protocol mutually")
}
if _, err := tconn.Write(clientPreface); err != nil {
return nil, err
}
cc := &clientConn{
t: t,
tconn: tconn,
connKey: []string{key}, // TODO: cert's validated hostnames too
tlsState: &state,
readerDone: make(chan struct{}),
nextStreamID: 1,
maxFrameSize: 16 << 10, // spec default
initialWindowSize: 65535, // spec default
maxConcurrentStreams: 1000, // "infinite", per spec. 1000 seems good enough.
streams: make(map[uint32]*clientStream),
}
cc.bw = bufio.NewWriter(stickyErrWriter{tconn, &cc.werr})
cc.br = bufio.NewReader(tconn)
cc.fr = NewFramer(cc.bw, cc.br)
cc.henc = hpack.NewEncoder(&cc.hbuf)
cc.fr.WriteSettings()
// TODO: re-send more conn-level flow control tokens when server uses all these.
cc.fr.WriteWindowUpdate(0, 1<<30) // um, 0x7fffffff doesn't work to Google? it hangs?
cc.bw.Flush()
if cc.werr != nil {
return nil, cc.werr
}
// Read the obligatory SETTINGS frame
f, err := cc.fr.ReadFrame()
if err != nil {
return nil, err
}
sf, ok := f.(*SettingsFrame)
if !ok {
return nil, fmt.Errorf("expected settings frame, got: %T", f)
}
cc.fr.WriteSettingsAck()
cc.bw.Flush()
sf.ForeachSetting(func(s Setting) error {
switch s.ID {
case SettingMaxFrameSize:
cc.maxFrameSize = s.Val
case SettingMaxConcurrentStreams:
cc.maxConcurrentStreams = s.Val
case SettingInitialWindowSize:
cc.initialWindowSize = s.Val
default:
// TODO(bradfitz): handle more
log.Printf("Unhandled Setting: %v", s)
}
return nil
})
// TODO: figure out henc size
cc.hdec = hpack.NewDecoder(initialHeaderTableSize, cc.onNewHeaderField)
go cc.readLoop()
return cc, nil
}
func (cc *clientConn) setGoAway(f *GoAwayFrame) {
cc.mu.Lock()
defer cc.mu.Unlock()
cc.goAway = f
}
func (cc *clientConn) canTakeNewRequest() bool {
cc.mu.Lock()
defer cc.mu.Unlock()
return cc.goAway == nil &&
int64(len(cc.streams)+1) < int64(cc.maxConcurrentStreams) &&
cc.nextStreamID < 2147483647
}
func (cc *clientConn) closeIfIdle() {
cc.mu.Lock()
if len(cc.streams) > 0 {
cc.mu.Unlock()
return
}
cc.closed = true
// TODO: do clients send GOAWAY too? maybe? Just Close:
cc.mu.Unlock()
cc.tconn.Close()
}
func (cc *clientConn) roundTrip(req *http.Request) (*http.Response, error) {
cc.mu.Lock()
if cc.closed {
cc.mu.Unlock()
return nil, errClientConnClosed
}
cs := cc.newStream()
hasBody := false // TODO
// we send: HEADERS[+CONTINUATION] + (DATA?)
hdrs := cc.encodeHeaders(req)
first := true
for len(hdrs) > 0 {
chunk := hdrs
if len(chunk) > int(cc.maxFrameSize) {
chunk = chunk[:cc.maxFrameSize]
}
hdrs = hdrs[len(chunk):]
endHeaders := len(hdrs) == 0
if first {
cc.fr.WriteHeaders(HeadersFrameParam{
StreamID: cs.ID,
BlockFragment: chunk,
EndStream: !hasBody,
EndHeaders: endHeaders,
})
first = false
} else {
cc.fr.WriteContinuation(cs.ID, endHeaders, chunk)
}
}
cc.bw.Flush()
werr := cc.werr
cc.mu.Unlock()
if hasBody {
// TODO: write data. and it should probably be interleaved:
// go ... io.Copy(dataFrameWriter{cc, cs, ...}, req.Body) ... etc
}
if werr != nil {
return nil, werr
}
re := <-cs.resc
if re.err != nil {
return nil, re.err
}
res := re.res
res.Request = req
res.TLS = cc.tlsState
return res, nil
}
// requires cc.mu be held.
func (cc *clientConn) encodeHeaders(req *http.Request) []byte {
cc.hbuf.Reset()
// TODO(bradfitz): figure out :authority-vs-Host stuff between http2 and Go
host := req.Host
if host == "" {
host = req.URL.Host
}
path := req.URL.Path
if path == "" {
path = "/"
}
cc.writeHeader(":authority", host) // probably not right for all sites
cc.writeHeader(":method", req.Method)
cc.writeHeader(":path", path)
cc.writeHeader(":scheme", "https")
for k, vv := range req.Header {
lowKey := strings.ToLower(k)
if lowKey == "host" {
continue
}
for _, v := range vv {
cc.writeHeader(lowKey, v)
}
}
return cc.hbuf.Bytes()
}
func (cc *clientConn) writeHeader(name, value string) {
log.Printf("sending %q = %q", name, value)
cc.henc.WriteField(hpack.HeaderField{Name: name, Value: value})
}
type resAndError struct {
res *http.Response
err error
}
// requires cc.mu be held.
func (cc *clientConn) newStream() *clientStream {
cs := &clientStream{
ID: cc.nextStreamID,
resc: make(chan resAndError, 1),
}
cc.nextStreamID += 2
cc.streams[cs.ID] = cs
return cs
}
func (cc *clientConn) streamByID(id uint32, andRemove bool) *clientStream {
cc.mu.Lock()
defer cc.mu.Unlock()
cs := cc.streams[id]
if andRemove {
delete(cc.streams, id)
}
return cs
}
// runs in its own goroutine.
func (cc *clientConn) readLoop() {
defer cc.t.removeClientConn(cc)
defer close(cc.readerDone)
activeRes := map[uint32]*clientStream{} // keyed by streamID
// Close any response bodies if the server closes prematurely.
// TODO: also do this if we've written the headers but not
// gotten a response yet.
defer func() {
err := cc.readerErr
if err == io.EOF {
err = io.ErrUnexpectedEOF
}
for _, cs := range activeRes {
cs.pw.CloseWithError(err)
}
}()
// continueStreamID is the stream ID we're waiting for
// continuation frames for.
var continueStreamID uint32
for {
f, err := cc.fr.ReadFrame()
if err != nil {
cc.readerErr = err
return
}
log.Printf("Transport received %v: %#v", f.Header(), f)
streamID := f.Header().StreamID
_, isContinue := f.(*ContinuationFrame)
if isContinue {
if streamID != continueStreamID {
log.Printf("Protocol violation: got CONTINUATION with id %d; want %d", streamID, continueStreamID)
cc.readerErr = ConnectionError(ErrCodeProtocol)
return
}
} else if continueStreamID != 0 {
// Continue frames need to be adjacent in the stream
// and we were in the middle of headers.
log.Printf("Protocol violation: got %T for stream %d, want CONTINUATION for %d", f, streamID, continueStreamID)
cc.readerErr = ConnectionError(ErrCodeProtocol)
return
}
if streamID%2 == 0 {
// Ignore streams pushed from the server for now.
// These always have an even stream id.
continue
}
streamEnded := false
if ff, ok := f.(streamEnder); ok {
streamEnded = ff.StreamEnded()
}
cs := cc.streamByID(streamID, streamEnded)
if cs == nil {
log.Printf("Received frame for untracked stream ID %d", streamID)
continue
}
switch f := f.(type) {
case *HeadersFrame:
cc.nextRes = &http.Response{
Proto: "HTTP/2.0",
ProtoMajor: 2,
Header: make(http.Header),
}
cs.pr, cs.pw = io.Pipe()
cc.hdec.Write(f.HeaderBlockFragment())
case *ContinuationFrame:
cc.hdec.Write(f.HeaderBlockFragment())
case *DataFrame:
log.Printf("DATA: %q", f.Data())
cs.pw.Write(f.Data())
case *GoAwayFrame:
cc.t.removeClientConn(cc)
if f.ErrCode != 0 {
// TODO: deal with GOAWAY more. particularly the error code
log.Printf("transport got GOAWAY with error code = %v", f.ErrCode)
}
cc.setGoAway(f)
default:
log.Printf("Transport: unhandled response frame type %T", f)
}
headersEnded := false
if he, ok := f.(headersEnder); ok {
headersEnded = he.HeadersEnded()
if headersEnded {
continueStreamID = 0
} else {
continueStreamID = streamID
}
}
if streamEnded {
cs.pw.Close()
delete(activeRes, streamID)
}
if headersEnded {
if cs == nil {
panic("couldn't find stream") // TODO be graceful
}
// TODO: set the Body to one which notes the
// Close and also sends the server a
// RST_STREAM
cc.nextRes.Body = cs.pr
res := cc.nextRes
activeRes[streamID] = cs
cs.resc <- resAndError{res: res}
}
}
}
func (cc *clientConn) onNewHeaderField(f hpack.HeaderField) {
// TODO: verifiy pseudo headers come before non-pseudo headers
// TODO: verifiy the status is set
log.Printf("Header field: %+v", f)
if f.Name == ":status" {
code, err := strconv.Atoi(f.Value)
if err != nil {
panic("TODO: be graceful")
}
cc.nextRes.Status = f.Value + " " + http.StatusText(code)
cc.nextRes.StatusCode = code
return
}
if strings.HasPrefix(f.Name, ":") {
// "Endpoints MUST NOT generate pseudo-header fields other than those defined in this document."
// TODO: treat as invalid?
return
}
cc.nextRes.Header.Add(http.CanonicalHeaderKey(f.Name), f.Value)
}

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// Copyright 2015 The Go Authors.
// See https://go.googlesource.com/go/+/master/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://go.googlesource.com/go/+/master/LICENSE
package http2
import (
"flag"
"io"
"io/ioutil"
"net/http"
"os"
"reflect"
"strings"
"testing"
"time"
)
var (
extNet = flag.Bool("extnet", false, "do external network tests")
transportHost = flag.String("transporthost", "http2.golang.org", "hostname to use for TestTransport")
insecure = flag.Bool("insecure", false, "insecure TLS dials")
)
func TestTransportExternal(t *testing.T) {
if !*extNet {
t.Skip("skipping external network test")
}
req, _ := http.NewRequest("GET", "https://"+*transportHost+"/", nil)
rt := &Transport{
InsecureTLSDial: *insecure,
}
res, err := rt.RoundTrip(req)
if err != nil {
t.Fatalf("%v", err)
}
res.Write(os.Stdout)
}
func TestTransport(t *testing.T) {
const body = "sup"
st := newServerTester(t, func(w http.ResponseWriter, r *http.Request) {
io.WriteString(w, body)
})
defer st.Close()
tr := &Transport{InsecureTLSDial: true}
defer tr.CloseIdleConnections()
req, err := http.NewRequest("GET", st.ts.URL, nil)
if err != nil {
t.Fatal(err)
}
res, err := tr.RoundTrip(req)
if err != nil {
t.Fatal(err)
}
defer res.Body.Close()
t.Logf("Got res: %+v", res)
if g, w := res.StatusCode, 200; g != w {
t.Errorf("StatusCode = %v; want %v", g, w)
}
if g, w := res.Status, "200 OK"; g != w {
t.Errorf("Status = %q; want %q", g, w)
}
wantHeader := http.Header{
"Content-Length": []string{"3"},
"Content-Type": []string{"text/plain; charset=utf-8"},
}
if !reflect.DeepEqual(res.Header, wantHeader) {
t.Errorf("res Header = %v; want %v", res.Header, wantHeader)
}
if res.Request != req {
t.Errorf("Response.Request = %p; want %p", res.Request, req)
}
if res.TLS == nil {
t.Error("Response.TLS = nil; want non-nil")
}
slurp, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Errorf("Body read: %v", err)
} else if string(slurp) != body {
t.Errorf("Body = %q; want %q", slurp, body)
}
}
func TestTransportReusesConns(t *testing.T) {
st := newServerTester(t, func(w http.ResponseWriter, r *http.Request) {
io.WriteString(w, r.RemoteAddr)
}, optOnlyServer)
defer st.Close()
tr := &Transport{InsecureTLSDial: true}
defer tr.CloseIdleConnections()
get := func() string {
req, err := http.NewRequest("GET", st.ts.URL, nil)
if err != nil {
t.Fatal(err)
}
res, err := tr.RoundTrip(req)
if err != nil {
t.Fatal(err)
}
defer res.Body.Close()
slurp, err := ioutil.ReadAll(res.Body)
if err != nil {
t.Fatalf("Body read: %v", err)
}
addr := strings.TrimSpace(string(slurp))
if addr == "" {
t.Fatalf("didn't get an addr in response")
}
return addr
}
first := get()
second := get()
if first != second {
t.Errorf("first and second responses were on different connections: %q vs %q", first, second)
}
}
func TestTransportAbortClosesPipes(t *testing.T) {
shutdown := make(chan struct{})
st := newServerTester(t,
func(w http.ResponseWriter, r *http.Request) {
w.(http.Flusher).Flush()
<-shutdown
},
optOnlyServer,
)
defer st.Close()
defer close(shutdown) // we must shutdown before st.Close() to avoid hanging
done := make(chan struct{})
requestMade := make(chan struct{})
go func() {
defer close(done)
tr := &Transport{
InsecureTLSDial: true,
}
req, err := http.NewRequest("GET", st.ts.URL, nil)
if err != nil {
t.Fatal(err)
}
res, err := tr.RoundTrip(req)
if err != nil {
t.Fatal(err)
}
defer res.Body.Close()
close(requestMade)
_, err = ioutil.ReadAll(res.Body)
if err == nil {
t.Error("expected error from res.Body.Read")
}
}()
<-requestMade
// Now force the serve loop to end, via closing the connection.
st.closeConn()
// deadlock? that's a bug.
select {
case <-done:
case <-time.After(3 * time.Second):
t.Fatal("timeout")
}
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"bytes"
"fmt"
"net/http"
"time"
"github.com/bradfitz/http2/hpack"
)
// writeFramer is implemented by any type that is used to write frames.
type writeFramer interface {
writeFrame(writeContext) error
}
// writeContext is the interface needed by the various frame writer
// types below. All the writeFrame methods below are scheduled via the
// frame writing scheduler (see writeScheduler in writesched.go).
//
// This interface is implemented by *serverConn.
// TODO: use it from the client code too, once it exists.
type writeContext interface {
Framer() *Framer
Flush() error
CloseConn() error
// HeaderEncoder returns an HPACK encoder that writes to the
// returned buffer.
HeaderEncoder() (*hpack.Encoder, *bytes.Buffer)
}
// endsStream reports whether the given frame writer w will locally
// close the stream.
func endsStream(w writeFramer) bool {
switch v := w.(type) {
case *writeData:
return v.endStream
case *writeResHeaders:
return v.endStream
}
return false
}
type flushFrameWriter struct{}
func (flushFrameWriter) writeFrame(ctx writeContext) error {
return ctx.Flush()
}
type writeSettings []Setting
func (s writeSettings) writeFrame(ctx writeContext) error {
return ctx.Framer().WriteSettings([]Setting(s)...)
}
type writeGoAway struct {
maxStreamID uint32
code ErrCode
}
func (p *writeGoAway) writeFrame(ctx writeContext) error {
err := ctx.Framer().WriteGoAway(p.maxStreamID, p.code, nil)
if p.code != 0 {
ctx.Flush() // ignore error: we're hanging up on them anyway
time.Sleep(50 * time.Millisecond)
ctx.CloseConn()
}
return err
}
type writeData struct {
streamID uint32
p []byte
endStream bool
}
func (w *writeData) String() string {
return fmt.Sprintf("writeData(stream=%d, p=%d, endStream=%v)", w.streamID, len(w.p), w.endStream)
}
func (w *writeData) writeFrame(ctx writeContext) error {
return ctx.Framer().WriteData(w.streamID, w.endStream, w.p)
}
func (se StreamError) writeFrame(ctx writeContext) error {
return ctx.Framer().WriteRSTStream(se.StreamID, se.Code)
}
type writePingAck struct{ pf *PingFrame }
func (w writePingAck) writeFrame(ctx writeContext) error {
return ctx.Framer().WritePing(true, w.pf.Data)
}
type writeSettingsAck struct{}
func (writeSettingsAck) writeFrame(ctx writeContext) error {
return ctx.Framer().WriteSettingsAck()
}
// writeResHeaders is a request to write a HEADERS and 0+ CONTINUATION frames
// for HTTP response headers from a server handler.
type writeResHeaders struct {
streamID uint32
httpResCode int
h http.Header // may be nil
endStream bool
contentType string
contentLength string
}
func (w *writeResHeaders) writeFrame(ctx writeContext) error {
enc, buf := ctx.HeaderEncoder()
buf.Reset()
enc.WriteField(hpack.HeaderField{Name: ":status", Value: httpCodeString(w.httpResCode)})
for k, vv := range w.h {
k = lowerHeader(k)
for _, v := range vv {
// TODO: more of "8.1.2.2 Connection-Specific Header Fields"
if k == "transfer-encoding" && v != "trailers" {
continue
}
enc.WriteField(hpack.HeaderField{Name: k, Value: v})
}
}
if w.contentType != "" {
enc.WriteField(hpack.HeaderField{Name: "content-type", Value: w.contentType})
}
if w.contentLength != "" {
enc.WriteField(hpack.HeaderField{Name: "content-length", Value: w.contentLength})
}
headerBlock := buf.Bytes()
if len(headerBlock) == 0 {
panic("unexpected empty hpack")
}
// For now we're lazy and just pick the minimum MAX_FRAME_SIZE
// that all peers must support (16KB). Later we could care
// more and send larger frames if the peer advertised it, but
// there's little point. Most headers are small anyway (so we
// generally won't have CONTINUATION frames), and extra frames
// only waste 9 bytes anyway.
const maxFrameSize = 16384
first := true
for len(headerBlock) > 0 {
frag := headerBlock
if len(frag) > maxFrameSize {
frag = frag[:maxFrameSize]
}
headerBlock = headerBlock[len(frag):]
endHeaders := len(headerBlock) == 0
var err error
if first {
first = false
err = ctx.Framer().WriteHeaders(HeadersFrameParam{
StreamID: w.streamID,
BlockFragment: frag,
EndStream: w.endStream,
EndHeaders: endHeaders,
})
} else {
err = ctx.Framer().WriteContinuation(w.streamID, endHeaders, frag)
}
if err != nil {
return err
}
}
return nil
}
type write100ContinueHeadersFrame struct {
streamID uint32
}
func (w write100ContinueHeadersFrame) writeFrame(ctx writeContext) error {
enc, buf := ctx.HeaderEncoder()
buf.Reset()
enc.WriteField(hpack.HeaderField{Name: ":status", Value: "100"})
return ctx.Framer().WriteHeaders(HeadersFrameParam{
StreamID: w.streamID,
BlockFragment: buf.Bytes(),
EndStream: false,
EndHeaders: true,
})
}
type writeWindowUpdate struct {
streamID uint32 // or 0 for conn-level
n uint32
}
func (wu writeWindowUpdate) writeFrame(ctx writeContext) error {
return ctx.Framer().WriteWindowUpdate(wu.streamID, wu.n)
}

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// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import "fmt"
// frameWriteMsg is a request to write a frame.
type frameWriteMsg struct {
// write is the interface value that does the writing, once the
// writeScheduler (below) has decided to select this frame
// to write. The write functions are all defined in write.go.
write writeFramer
stream *stream // used for prioritization. nil for non-stream frames.
// done, if non-nil, must be a buffered channel with space for
// 1 message and is sent the return value from write (or an
// earlier error) when the frame has been written.
done chan error
}
// for debugging only:
func (wm frameWriteMsg) String() string {
var streamID uint32
if wm.stream != nil {
streamID = wm.stream.id
}
var des string
if s, ok := wm.write.(fmt.Stringer); ok {
des = s.String()
} else {
des = fmt.Sprintf("%T", wm.write)
}
return fmt.Sprintf("[frameWriteMsg stream=%d, ch=%v, type: %v]", streamID, wm.done != nil, des)
}
// writeScheduler tracks pending frames to write, priorities, and decides
// the next one to use. It is not thread-safe.
type writeScheduler struct {
// zero are frames not associated with a specific stream.
// They're sent before any stream-specific freams.
zero writeQueue
// maxFrameSize is the maximum size of a DATA frame
// we'll write. Must be non-zero and between 16K-16M.
maxFrameSize uint32
// sq contains the stream-specific queues, keyed by stream ID.
// when a stream is idle, it's deleted from the map.
sq map[uint32]*writeQueue
// canSend is a slice of memory that's reused between frame
// scheduling decisions to hold the list of writeQueues (from sq)
// which have enough flow control data to send. After canSend is
// built, the best is selected.
canSend []*writeQueue
// pool of empty queues for reuse.
queuePool []*writeQueue
}
func (ws *writeScheduler) putEmptyQueue(q *writeQueue) {
if len(q.s) != 0 {
panic("queue must be empty")
}
ws.queuePool = append(ws.queuePool, q)
}
func (ws *writeScheduler) getEmptyQueue() *writeQueue {
ln := len(ws.queuePool)
if ln == 0 {
return new(writeQueue)
}
q := ws.queuePool[ln-1]
ws.queuePool = ws.queuePool[:ln-1]
return q
}
func (ws *writeScheduler) empty() bool { return ws.zero.empty() && len(ws.sq) == 0 }
func (ws *writeScheduler) add(wm frameWriteMsg) {
st := wm.stream
if st == nil {
ws.zero.push(wm)
} else {
ws.streamQueue(st.id).push(wm)
}
}
func (ws *writeScheduler) streamQueue(streamID uint32) *writeQueue {
if q, ok := ws.sq[streamID]; ok {
return q
}
if ws.sq == nil {
ws.sq = make(map[uint32]*writeQueue)
}
q := ws.getEmptyQueue()
ws.sq[streamID] = q
return q
}
// take returns the most important frame to write and removes it from the scheduler.
// It is illegal to call this if the scheduler is empty or if there are no connection-level
// flow control bytes available.
func (ws *writeScheduler) take() (wm frameWriteMsg, ok bool) {
if ws.maxFrameSize == 0 {
panic("internal error: ws.maxFrameSize not initialized or invalid")
}
// If there any frames not associated with streams, prefer those first.
// These are usually SETTINGS, etc.
if !ws.zero.empty() {
return ws.zero.shift(), true
}
if len(ws.sq) == 0 {
return
}
// Next, prioritize frames on streams that aren't DATA frames (no cost).
for id, q := range ws.sq {
if q.firstIsNoCost() {
return ws.takeFrom(id, q)
}
}
// Now, all that remains are DATA frames with non-zero bytes to
// send. So pick the best one.
if len(ws.canSend) != 0 {
panic("should be empty")
}
for _, q := range ws.sq {
if n := ws.streamWritableBytes(q); n > 0 {
ws.canSend = append(ws.canSend, q)
}
}
if len(ws.canSend) == 0 {
return
}
defer ws.zeroCanSend()
// TODO: find the best queue
q := ws.canSend[0]
return ws.takeFrom(q.streamID(), q)
}
// zeroCanSend is defered from take.
func (ws *writeScheduler) zeroCanSend() {
for i := range ws.canSend {
ws.canSend[i] = nil
}
ws.canSend = ws.canSend[:0]
}
// streamWritableBytes returns the number of DATA bytes we could write
// from the given queue's stream, if this stream/queue were
// selected. It is an error to call this if q's head isn't a
// *writeData.
func (ws *writeScheduler) streamWritableBytes(q *writeQueue) int32 {
wm := q.head()
ret := wm.stream.flow.available() // max we can write
if ret == 0 {
return 0
}
if int32(ws.maxFrameSize) < ret {
ret = int32(ws.maxFrameSize)
}
if ret == 0 {
panic("internal error: ws.maxFrameSize not initialized or invalid")
}
wd := wm.write.(*writeData)
if len(wd.p) < int(ret) {
ret = int32(len(wd.p))
}
return ret
}
func (ws *writeScheduler) takeFrom(id uint32, q *writeQueue) (wm frameWriteMsg, ok bool) {
wm = q.head()
// If the first item in this queue costs flow control tokens
// and we don't have enough, write as much as we can.
if wd, ok := wm.write.(*writeData); ok && len(wd.p) > 0 {
allowed := wm.stream.flow.available() // max we can write
if allowed == 0 {
// No quota available. Caller can try the next stream.
return frameWriteMsg{}, false
}
if int32(ws.maxFrameSize) < allowed {
allowed = int32(ws.maxFrameSize)
}
// TODO: further restrict the allowed size, because even if
// the peer says it's okay to write 16MB data frames, we might
// want to write smaller ones to properly weight competing
// streams' priorities.
if len(wd.p) > int(allowed) {
wm.stream.flow.take(allowed)
chunk := wd.p[:allowed]
wd.p = wd.p[allowed:]
// Make up a new write message of a valid size, rather
// than shifting one off the queue.
return frameWriteMsg{
stream: wm.stream,
write: &writeData{
streamID: wd.streamID,
p: chunk,
// even if the original had endStream set, there
// arebytes remaining because len(wd.p) > allowed,
// so we know endStream is false:
endStream: false,
},
// our caller is blocking on the final DATA frame, not
// these intermediates, so no need to wait:
done: nil,
}, true
}
wm.stream.flow.take(int32(len(wd.p)))
}
q.shift()
if q.empty() {
ws.putEmptyQueue(q)
delete(ws.sq, id)
}
return wm, true
}
func (ws *writeScheduler) forgetStream(id uint32) {
q, ok := ws.sq[id]
if !ok {
return
}
delete(ws.sq, id)
// But keep it for others later.
for i := range q.s {
q.s[i] = frameWriteMsg{}
}
q.s = q.s[:0]
ws.putEmptyQueue(q)
}
type writeQueue struct {
s []frameWriteMsg
}
// streamID returns the stream ID for a non-empty stream-specific queue.
func (q *writeQueue) streamID() uint32 { return q.s[0].stream.id }
func (q *writeQueue) empty() bool { return len(q.s) == 0 }
func (q *writeQueue) push(wm frameWriteMsg) {
q.s = append(q.s, wm)
}
// head returns the next item that would be removed by shift.
func (q *writeQueue) head() frameWriteMsg {
if len(q.s) == 0 {
panic("invalid use of queue")
}
return q.s[0]
}
func (q *writeQueue) shift() frameWriteMsg {
if len(q.s) == 0 {
panic("invalid use of queue")
}
wm := q.s[0]
// TODO: less copy-happy queue.
copy(q.s, q.s[1:])
q.s[len(q.s)-1] = frameWriteMsg{}
q.s = q.s[:len(q.s)-1]
return wm
}
func (q *writeQueue) firstIsNoCost() bool {
if df, ok := q.s[0].write.(*writeData); ok {
return len(df.p) == 0
}
return true
}

357
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// Copyright 2014 The Go Authors.
// See https://code.google.com/p/go/source/browse/CONTRIBUTORS
// Licensed under the same terms as Go itself:
// https://code.google.com/p/go/source/browse/LICENSE
package http2
import (
"bytes"
"encoding/xml"
"flag"
"fmt"
"io"
"os"
"reflect"
"regexp"
"sort"
"strconv"
"strings"
"sync"
"testing"
)
var coverSpec = flag.Bool("coverspec", false, "Run spec coverage tests")
// The global map of sentence coverage for the http2 spec.
var defaultSpecCoverage specCoverage
var loadSpecOnce sync.Once
func loadSpec() {
if f, err := os.Open("testdata/draft-ietf-httpbis-http2.xml"); err != nil {
panic(err)
} else {
defaultSpecCoverage = readSpecCov(f)
f.Close()
}
}
// covers marks all sentences for section sec in defaultSpecCoverage. Sentences not
// "covered" will be included in report outputed by TestSpecCoverage.
func covers(sec, sentences string) {
loadSpecOnce.Do(loadSpec)
defaultSpecCoverage.cover(sec, sentences)
}
type specPart struct {
section string
sentence string
}
func (ss specPart) Less(oo specPart) bool {
atoi := func(s string) int {
n, err := strconv.Atoi(s)
if err != nil {
panic(err)
}
return n
}
a := strings.Split(ss.section, ".")
b := strings.Split(oo.section, ".")
for len(a) > 0 {
if len(b) == 0 {
return false
}
x, y := atoi(a[0]), atoi(b[0])
if x == y {
a, b = a[1:], b[1:]
continue
}
return x < y
}
if len(b) > 0 {
return true
}
return false
}
type bySpecSection []specPart
func (a bySpecSection) Len() int { return len(a) }
func (a bySpecSection) Less(i, j int) bool { return a[i].Less(a[j]) }
func (a bySpecSection) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
type specCoverage struct {
coverage map[specPart]bool
d *xml.Decoder
}
func joinSection(sec []int) string {
s := fmt.Sprintf("%d", sec[0])
for _, n := range sec[1:] {
s = fmt.Sprintf("%s.%d", s, n)
}
return s
}
func (sc specCoverage) readSection(sec []int) {
var (
buf = new(bytes.Buffer)
sub = 0
)
for {
tk, err := sc.d.Token()
if err != nil {
if err == io.EOF {
return
}
panic(err)
}
switch v := tk.(type) {
case xml.StartElement:
if skipElement(v) {
if err := sc.d.Skip(); err != nil {
panic(err)
}
if v.Name.Local == "section" {
sub++
}
break
}
switch v.Name.Local {
case "section":
sub++
sc.readSection(append(sec, sub))
case "xref":
buf.Write(sc.readXRef(v))
}
case xml.CharData:
if len(sec) == 0 {
break
}
buf.Write(v)
case xml.EndElement:
if v.Name.Local == "section" {
sc.addSentences(joinSection(sec), buf.String())
return
}
}
}
}
func (sc specCoverage) readXRef(se xml.StartElement) []byte {
var b []byte
for {
tk, err := sc.d.Token()
if err != nil {
panic(err)
}
switch v := tk.(type) {
case xml.CharData:
if b != nil {
panic("unexpected CharData")
}
b = []byte(string(v))
case xml.EndElement:
if v.Name.Local != "xref" {
panic("expected </xref>")
}
if b != nil {
return b
}
sig := attrSig(se)
switch sig {
case "target":
return []byte(fmt.Sprintf("[%s]", attrValue(se, "target")))
case "fmt-of,rel,target", "fmt-,,rel,target":
return []byte(fmt.Sprintf("[%s, %s]", attrValue(se, "target"), attrValue(se, "rel")))
case "fmt-of,sec,target", "fmt-,,sec,target":
return []byte(fmt.Sprintf("[section %s of %s]", attrValue(se, "sec"), attrValue(se, "target")))
case "fmt-of,rel,sec,target":
return []byte(fmt.Sprintf("[section %s of %s, %s]", attrValue(se, "sec"), attrValue(se, "target"), attrValue(se, "rel")))
default:
panic(fmt.Sprintf("unknown attribute signature %q in %#v", sig, fmt.Sprintf("%#v", se)))
}
default:
panic(fmt.Sprintf("unexpected tag %q", v))
}
}
}
var skipAnchor = map[string]bool{
"intro": true,
"Overview": true,
}
var skipTitle = map[string]bool{
"Acknowledgements": true,
"Change Log": true,
"Document Organization": true,
"Conventions and Terminology": true,
}
func skipElement(s xml.StartElement) bool {
switch s.Name.Local {
case "artwork":
return true
case "section":
for _, attr := range s.Attr {
switch attr.Name.Local {
case "anchor":
if skipAnchor[attr.Value] || strings.HasPrefix(attr.Value, "changes.since.") {
return true
}
case "title":
if skipTitle[attr.Value] {
return true
}
}
}
}
return false
}
func readSpecCov(r io.Reader) specCoverage {
sc := specCoverage{
coverage: map[specPart]bool{},
d: xml.NewDecoder(r)}
sc.readSection(nil)
return sc
}
func (sc specCoverage) addSentences(sec string, sentence string) {
for _, s := range parseSentences(sentence) {
sc.coverage[specPart{sec, s}] = false
}
}
func (sc specCoverage) cover(sec string, sentence string) {
for _, s := range parseSentences(sentence) {
p := specPart{sec, s}
if _, ok := sc.coverage[p]; !ok {
panic(fmt.Sprintf("Not found in spec: %q, %q", sec, s))
}
sc.coverage[specPart{sec, s}] = true
}
}
var whitespaceRx = regexp.MustCompile(`\s+`)
func parseSentences(sens string) []string {
sens = strings.TrimSpace(sens)
if sens == "" {
return nil
}
ss := strings.Split(whitespaceRx.ReplaceAllString(sens, " "), ". ")
for i, s := range ss {
s = strings.TrimSpace(s)
if !strings.HasSuffix(s, ".") {
s += "."
}
ss[i] = s
}
return ss
}
func TestSpecParseSentences(t *testing.T) {
tests := []struct {
ss string
want []string
}{
{"Sentence 1. Sentence 2.",
[]string{
"Sentence 1.",
"Sentence 2.",
}},
{"Sentence 1. \nSentence 2.\tSentence 3.",
[]string{
"Sentence 1.",
"Sentence 2.",
"Sentence 3.",
}},
}
for i, tt := range tests {
got := parseSentences(tt.ss)
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("%d: got = %q, want %q", i, got, tt.want)
}
}
}
func TestSpecCoverage(t *testing.T) {
if !*coverSpec {
t.Skip()
}
loadSpecOnce.Do(loadSpec)
var (
list []specPart
cv = defaultSpecCoverage.coverage
total = len(cv)
complete = 0
)
for sp, touched := range defaultSpecCoverage.coverage {
if touched {
complete++
} else {
list = append(list, sp)
}
}
sort.Stable(bySpecSection(list))
if testing.Short() && len(list) > 5 {
list = list[:5]
}
for _, p := range list {
t.Errorf("\tSECTION %s: %s", p.section, p.sentence)
}
t.Logf("%d/%d (%d%%) sentances covered", complete, total, (complete/total)*100)
}
func attrSig(se xml.StartElement) string {
var names []string
for _, attr := range se.Attr {
if attr.Name.Local == "fmt" {
names = append(names, "fmt-"+attr.Value)
} else {
names = append(names, attr.Name.Local)
}
}
sort.Strings(names)
return strings.Join(names, ",")
}
func attrValue(se xml.StartElement, attr string) string {
for _, a := range se.Attr {
if a.Name.Local == attr {
return a.Value
}
}
panic("unknown attribute " + attr)
}
func TestSpecPartLess(t *testing.T) {
tests := []struct {
sec1, sec2 string
want bool
}{
{"6.2.1", "6.2", false},
{"6.2", "6.2.1", true},
{"6.10", "6.10.1", true},
{"6.10", "6.1.1", false}, // 10, not 1
{"6.1", "6.1", false}, // equal, so not less
}
for _, tt := range tests {
got := (specPart{tt.sec1, "foo"}).Less(specPart{tt.sec2, "foo"})
if got != tt.want {
t.Errorf("Less(%q, %q) = %v; want %v", tt.sec1, tt.sec2, got, tt.want)
}
}
}

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.DS_Store
*.[568ao]
*.pb.go
*.ao
*.so
*.pyc
._*
.nfs.*
[568a].out
*~
*.orig
core
_obj
_test
_testmain.go
compiler/protoc-gen-go
compiler/testdata/extension_test

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# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

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# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

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Go support for Protocol Buffers - Google's data interchange format
Copyright 2010 The Go Authors. All rights reserved.
https://github.com/golang/protobuf
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

40
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# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Includable Makefile to add a rule for generating .pb.go files from .proto files
# (Google protocol buffer descriptions).
# Typical use if myproto.proto is a file in package mypackage in this directory:
#
# include $(GOROOT)/src/pkg/github.com/golang/protobuf/Make.protobuf
%.pb.go: %.proto
protoc --go_out=. $<

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# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
all: install
install:
go install ./proto
go install ./jsonpb
go install ./protoc-gen-go
test:
go test ./proto
go test ./jsonpb
make -C protoc-gen-go/testdata test
clean:
go clean ./...
nuke:
go clean -i ./...
regenerate:
make -C protoc-gen-go/descriptor regenerate
make -C protoc-gen-go/plugin regenerate
make -C proto/testdata regenerate
make -C jsonpb/jsonpb_test_proto regenerate

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Go support for Protocol Buffers - Google's data interchange format
Copyright 2010 The Go Authors.
https://github.com/golang/protobuf
This package and the code it generates requires at least Go 1.2.
This software implements Go bindings for protocol buffers. For
information about protocol buffers themselves, see
https://developers.google.com/protocol-buffers/
To use this software, you must first install the standard C++
implementation of protocol buffers from
https://developers.google.com/protocol-buffers/
And of course you must also install the Go compiler and tools from
https://golang.org/
See
https://golang.org/doc/install
for details or, if you are using gccgo, follow the instructions at
https://golang.org/doc/install/gccgo
This software has two parts: a 'protocol compiler plugin' that
generates Go source files that, once compiled, can access and manage
protocol buffers; and a library that implements run-time support for
encoding (marshaling), decoding (unmarshaling), and accessing protocol
buffers.
There is support for gRPC in Go using protocol buffers.
See the note at the bottom of this file for details.
There are no insertion points in the plugin.
To install this code:
The simplest way is to run go get.
# Grab the code from the repository and install the proto package.
go get -u github.com/golang/protobuf/{proto,protoc-gen-go}
The compiler plugin, protoc-gen-go, will be installed in $GOBIN,
defaulting to $GOPATH/bin. It must be in your $PATH for the protocol
compiler, protoc, to find it.
Once the software is installed, there are two steps to using it.
First you must compile the protocol buffer definitions and then import
them, with the support library, into your program.
To compile the protocol buffer definition, run protoc with the --go_out
parameter set to the directory you want to output the Go code to.
protoc --go_out=. *.proto
The generated files will be suffixed .pb.go. See the Test code below
for an example using such a file.
The package comment for the proto library contains text describing
the interface provided in Go for protocol buffers. Here is an edited
version.
==========
The proto package converts data structures to and from the
wire format of protocol buffers. It works in concert with the
Go source code generated for .proto files by the protocol compiler.
A summary of the properties of the protocol buffer interface
for a protocol buffer variable v:
- Names are turned from camel_case to CamelCase for export.
- There are no methods on v to set fields; just treat
them as structure fields.
- There are getters that return a field's value if set,
and return the field's default value if unset.
The getters work even if the receiver is a nil message.
- The zero value for a struct is its correct initialization state.
All desired fields must be set before marshaling.
- A Reset() method will restore a protobuf struct to its zero state.
- Non-repeated fields are pointers to the values; nil means unset.
That is, optional or required field int32 f becomes F *int32.
- Repeated fields are slices.
- Helper functions are available to aid the setting of fields.
Helpers for getting values are superseded by the
GetFoo methods and their use is deprecated.
msg.Foo = proto.String("hello") // set field
- Constants are defined to hold the default values of all fields that
have them. They have the form Default_StructName_FieldName.
Because the getter methods handle defaulted values,
direct use of these constants should be rare.
- Enums are given type names and maps from names to values.
Enum values are prefixed with the enum's type name. Enum types have
a String method, and a Enum method to assist in message construction.
- Nested groups and enums have type names prefixed with the name of
the surrounding message type.
- Extensions are given descriptor names that start with E_,
followed by an underscore-delimited list of the nested messages
that contain it (if any) followed by the CamelCased name of the
extension field itself. HasExtension, ClearExtension, GetExtension
and SetExtension are functions for manipulating extensions.
- Marshal and Unmarshal are functions to encode and decode the wire format.
Consider file test.proto, containing
package example;
enum FOO { X = 17; };
message Test {
required string label = 1;
optional int32 type = 2 [default=77];
repeated int64 reps = 3;
optional group OptionalGroup = 4 {
required string RequiredField = 5;
}
}
To create and play with a Test object from the example package,
package main
import (
"log"
"github.com/golang/protobuf/proto"
"path/to/example"
)
func main() {
test := &example.Test {
Label: proto.String("hello"),
Type: proto.Int32(17),
Optionalgroup: &example.Test_OptionalGroup {
RequiredField: proto.String("good bye"),
},
}
data, err := proto.Marshal(test)
if err != nil {
log.Fatal("marshaling error: ", err)
}
newTest := &example.Test{}
err = proto.Unmarshal(data, newTest)
if err != nil {
log.Fatal("unmarshaling error: ", err)
}
// Now test and newTest contain the same data.
if test.GetLabel() != newTest.GetLabel() {
log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel())
}
// etc.
}
gRPC Support
============
If a proto file specifies RPC services, protoc-gen-go can be instructed to
generate code compatible with gRPC (http://www.grpc.io/). To do this, pass
the `plugins` parameter to protoc-gen-go; the usual way is to insert it into
the --go_out argument to protoc:
protoc --go_out=plugins=grpc:. *.proto

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2015 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/*
Package jsonpb provides marshalling/unmarshalling functionality between
protocol buffer and JSON objects.
Compared to encoding/json, this library:
- encodes int64, uint64 as strings
- optionally encodes enums as strings
*/
package jsonpb
import (
"bytes"
"encoding/json"
"fmt"
"io"
"reflect"
"sort"
"strconv"
"strings"
"github.com/golang/protobuf/proto"
)
var (
byteArrayType = reflect.TypeOf([]byte{})
)
// Marshaller is a configurable object for converting between
// protocol buffer objects and a JSON representation for them
type Marshaller struct {
// Use string values for enums (as opposed to integer values)
EnumsAsString bool
// A string to indent each level by. The presence of this field will
// also cause a space to appear between the field separator and
// value, and for newlines to be appear between fields and array
// elements.
Indent string
}
// Marshal marshals a protocol buffer into JSON.
func (m *Marshaller) Marshal(out io.Writer, pb proto.Message) error {
writer := &errWriter{writer: out}
return m.marshalObject(writer, pb, "")
}
// MarshalToString converts a protocol buffer object to JSON string.
func (m *Marshaller) MarshalToString(pb proto.Message) (string, error) {
var buf bytes.Buffer
if err := m.Marshal(&buf, pb); err != nil {
return "", err
}
return buf.String(), nil
}
// marshalObject writes a struct to the Writer.
func (m *Marshaller) marshalObject(out *errWriter, v proto.Message, indent string) error {
out.write("{")
if m.Indent != "" {
out.write("\n")
}
s := reflect.ValueOf(v).Elem()
writeBeforeField := ""
for i := 0; i < s.NumField(); i++ {
value := s.Field(i)
valueField := s.Type().Field(i)
fieldName, omitFieldIfNil := parseFieldOptions(valueField)
// Fields which should not be serialized will specify a json tag with '-'
// TODO: proto3 objects should have default values omitted.
if fieldName == "-" {
continue
} else if omitFieldIfNil {
// IsNil will panic on most value kinds.
skip := false
switch value.Kind() {
case reflect.Chan, reflect.Func, reflect.Interface, reflect.Map, reflect.Ptr, reflect.Slice:
skip = value.IsNil()
}
if skip {
continue
}
}
out.write(writeBeforeField)
if m.Indent != "" {
out.write(indent)
out.write(m.Indent)
}
out.write(`"`)
out.write(fieldName)
out.write(`":`)
if m.Indent != "" {
out.write(" ")
}
if err := m.marshalValue(out, value, valueField, indent); err != nil {
return err
}
if m.Indent != "" {
writeBeforeField = ",\n"
} else {
writeBeforeField = ","
}
}
if m.Indent != "" {
out.write("\n")
out.write(indent)
}
out.write("}")
return out.err
}
// marshalValue writes the value to the Writer.
func (m *Marshaller) marshalValue(out *errWriter, v reflect.Value,
structField reflect.StructField, indent string) error {
var err error
v = reflect.Indirect(v)
// Handle repeated elements.
if v.Type() != byteArrayType && v.Kind() == reflect.Slice {
out.write("[")
comma := ""
for i := 0; i < v.Len(); i++ {
sliceVal := v.Index(i)
out.write(comma)
if m.Indent != "" {
out.write("\n")
out.write(indent)
out.write(m.Indent)
out.write(m.Indent)
}
m.marshalValue(out, sliceVal, structField, indent+m.Indent)
comma = ","
}
if m.Indent != "" {
out.write("\n")
out.write(indent)
out.write(m.Indent)
}
out.write("]")
return out.err
}
// Handle enumerations.
protoInfo := structField.Tag.Get("protobuf")
if m.EnumsAsString && strings.Contains(protoInfo, ",enum=") {
// Unknown enum values will are stringified by the proto library as their
// value. Such values should _not_ be quoted or they will be intrepreted
// as an enum string instead of their value.
enumStr := v.Interface().(fmt.Stringer).String()
var valStr string
if v.Kind() == reflect.Ptr {
valStr = strconv.Itoa(int(v.Elem().Int()))
} else {
valStr = strconv.Itoa(int(v.Int()))
}
isKnownEnum := enumStr != valStr
if isKnownEnum {
out.write(`"`)
}
out.write(enumStr)
if isKnownEnum {
out.write(`"`)
}
return out.err
}
// Handle nested messages.
if v.Kind() == reflect.Struct {
return m.marshalObject(out, v.Addr().Interface().(proto.Message), indent+m.Indent)
}
// Handle maps.
// NOTE: Since Go randomizes map iteration, we sort keys for stable output.
if v.Kind() == reflect.Map {
out.write(`{`)
keys := v.MapKeys()
sort.Sort(mapKeys(keys))
for i, k := range keys {
if i > 0 {
out.write(`,`)
}
if m.Indent != "" {
out.write("\n")
out.write(indent)
out.write(m.Indent)
out.write(m.Indent)
}
b, err := json.Marshal(k.Interface())
if err != nil {
return err
}
s := string(b)
// If the JSON is not a string value, encode it again to make it one.
if !strings.HasPrefix(s, `"`) {
b, err := json.Marshal(s)
if err != nil {
return err
}
s = string(b)
}
out.write(s)
out.write(`:`)
if m.Indent != "" {
out.write(` `)
}
if err := m.marshalValue(out, v.MapIndex(k), structField, indent+m.Indent); err != nil {
return err
}
}
if m.Indent != "" {
out.write("\n")
out.write(indent)
out.write(m.Indent)
}
out.write(`}`)
return out.err
}
// Default handling defers to the encoding/json library.
b, err := json.Marshal(v.Interface())
if err != nil {
return err
}
needToQuote := string(b[0]) != `"` && (v.Kind() == reflect.Int64 || v.Kind() == reflect.Uint64)
if needToQuote {
out.write(`"`)
}
out.write(string(b))
if needToQuote {
out.write(`"`)
}
return out.err
}
// Unmarshal unmarshals a JSON object stream into a protocol
// buffer. This function is lenient and will decode any options
// permutations of the related Marshaller.
func Unmarshal(r io.Reader, pb proto.Message) error {
inputValue := json.RawMessage{}
if err := json.NewDecoder(r).Decode(&inputValue); err != nil {
return err
}
return unmarshalValue(reflect.ValueOf(pb).Elem(), inputValue)
}
// UnmarshalString will populate the fields of a protocol buffer based
// on a JSON string. This function is lenient and will decode any options
// permutations of the related Marshaller.
func UnmarshalString(str string, pb proto.Message) error {
return Unmarshal(bytes.NewReader([]byte(str)), pb)
}
// unmarshalValue converts/copies a value into the target.
func unmarshalValue(target reflect.Value, inputValue json.RawMessage) error {
targetType := target.Type()
// Allocate memory for pointer fields.
if targetType.Kind() == reflect.Ptr {
target.Set(reflect.New(targetType.Elem()))
return unmarshalValue(target.Elem(), inputValue)
}
// Handle nested messages.
if targetType.Kind() == reflect.Struct {
var jsonFields map[string]json.RawMessage
if err := json.Unmarshal(inputValue, &jsonFields); err != nil {
return err
}
for i := 0; i < target.NumField(); i++ {
fieldName, _ := parseFieldOptions(target.Type().Field(i))
// Fields which should not be serialized will specify a json tag with '-'
if fieldName == "-" {
continue
}
if valueForField, ok := jsonFields[fieldName]; ok {
if err := unmarshalValue(target.Field(i), valueForField); err != nil {
return err
}
}
}
return nil
}
// Handle arrays (which aren't encoded bytes)
if targetType != byteArrayType && targetType.Kind() == reflect.Slice {
var slc []json.RawMessage
if err := json.Unmarshal(inputValue, &slc); err != nil {
return err
}
len := len(slc)
target.Set(reflect.MakeSlice(targetType, len, len))
for i := 0; i < len; i++ {
if err := unmarshalValue(target.Index(i), slc[i]); err != nil {
return err
}
}
return nil
}
// Handle maps (whose keys are always strings)
if targetType.Kind() == reflect.Map {
var mp map[string]json.RawMessage
if err := json.Unmarshal(inputValue, &mp); err != nil {
return err
}
target.Set(reflect.MakeMap(targetType))
for ks, raw := range mp {
// Unmarshal map key. The core json library already decoded the key into a
// string, so we handle that specially. Other types were quoted post-serialization.
var k reflect.Value
if targetType.Key().Kind() == reflect.String {
k = reflect.ValueOf(ks)
} else {
k = reflect.New(targetType.Key()).Elem()
if err := unmarshalValue(k, json.RawMessage(ks)); err != nil {
return err
}
}
// Unmarshal map value.
v := reflect.New(targetType.Elem()).Elem()
if err := unmarshalValue(v, raw); err != nil {
return err
}
target.SetMapIndex(k, v)
}
return nil
}
// 64-bit integers can be encoded as strings. In this case we drop
// the quotes and proceed as normal.
isNum := targetType.Kind() == reflect.Int64 || targetType.Kind() == reflect.Uint64
if isNum && strings.HasPrefix(string(inputValue), `"`) {
inputValue = inputValue[1 : len(inputValue)-1]
}
// Use the encoding/json for parsing other value types.
return json.Unmarshal(inputValue, target.Addr().Interface())
}
// hasUnmarshalJSON is a interface implemented by protocol buffer enums.
type hasUnmarshalJSON interface {
UnmarshalJSON(data []byte) error
}
// parseFieldOptions returns the field name and if it should be omited.
func parseFieldOptions(f reflect.StructField) (string, bool) {
name := f.Name
omitEmpty := false
tag := f.Tag.Get("json")
tagParts := strings.Split(tag, ",")
for i := range tagParts {
if tagParts[i] == "omitempty" || tagParts[i] == "" {
omitEmpty = true
} else {
name = tagParts[i]
}
}
return name, omitEmpty
}
// Writer wrapper inspired by https://blog.golang.org/errors-are-values
type errWriter struct {
writer io.Writer
err error
}
func (w *errWriter) write(str string) {
if w.err != nil {
return
}
_, w.err = w.writer.Write([]byte(str))
}
// Map fields may have key types of non-float scalars, strings and enums.
// The easiest way to sort them in some deterministic order is to use fmt.
// If this turns out to be inefficient we can always consider other options,
// such as doing a Schwartzian transform.
type mapKeys []reflect.Value
func (s mapKeys) Len() int { return len(s) }
func (s mapKeys) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
func (s mapKeys) Less(i, j int) bool {
return fmt.Sprint(s[i].Interface()) < fmt.Sprint(s[j].Interface())
}

367
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2015 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package jsonpb
import (
"testing"
pb "github.com/golang/protobuf/jsonpb/jsonpb_test_proto"
"github.com/golang/protobuf/proto"
)
var (
marshaller = Marshaller{}
marshallerAllOptions = Marshaller{
EnumsAsString: true,
Indent: " ",
}
simpleObject = &pb.Simple{
OInt32: proto.Int32(-32),
OInt64: proto.Int64(-6400000000),
OUint32: proto.Uint32(32),
OUint64: proto.Uint64(6400000000),
OSint32: proto.Int32(-13),
OSint64: proto.Int64(-2600000000),
OFloat: proto.Float32(3.14),
ODouble: proto.Float64(6.02214179e23),
OBool: proto.Bool(true),
OString: proto.String("hello \"there\""),
OBytes: []byte("beep boop"),
}
simpleObjectJSON = `{` +
`"o_bool":true,` +
`"o_int32":-32,` +
`"o_int64":"-6400000000",` +
`"o_uint32":32,` +
`"o_uint64":"6400000000",` +
`"o_sint32":-13,` +
`"o_sint64":"-2600000000",` +
`"o_float":3.14,` +
`"o_double":6.02214179e+23,` +
`"o_string":"hello \"there\"",` +
`"o_bytes":"YmVlcCBib29w"` +
`}`
simpleObjectPrettyJSON = `{
"o_bool": true,
"o_int32": -32,
"o_int64": "-6400000000",
"o_uint32": 32,
"o_uint64": "6400000000",
"o_sint32": -13,
"o_sint64": "-2600000000",
"o_float": 3.14,
"o_double": 6.02214179e+23,
"o_string": "hello \"there\"",
"o_bytes": "YmVlcCBib29w"
}`
repeatsObject = &pb.Repeats{
RBool: []bool{true, false, true},
RInt32: []int32{-3, -4, -5},
RInt64: []int64{-123456789, -987654321},
RUint32: []uint32{1, 2, 3},
RUint64: []uint64{6789012345, 3456789012},
RSint32: []int32{-1, -2, -3},
RSint64: []int64{-6789012345, -3456789012},
RFloat: []float32{3.14, 6.28},
RDouble: []float64{299792458, 6.62606957e-34},
RString: []string{"happy", "days"},
RBytes: [][]byte{[]byte("skittles"), []byte("m&m's")},
}
repeatsObjectJSON = `{` +
`"r_bool":[true,false,true],` +
`"r_int32":[-3,-4,-5],` +
`"r_int64":["-123456789","-987654321"],` +
`"r_uint32":[1,2,3],` +
`"r_uint64":["6789012345","3456789012"],` +
`"r_sint32":[-1,-2,-3],` +
`"r_sint64":["-6789012345","-3456789012"],` +
`"r_float":[3.14,6.28],` +
`"r_double":[2.99792458e+08,6.62606957e-34],` +
`"r_string":["happy","days"],` +
`"r_bytes":["c2tpdHRsZXM=","bSZtJ3M="]` +
`}`
repeatsObjectPrettyJSON = `{
"r_bool": [
true,
false,
true
],
"r_int32": [
-3,
-4,
-5
],
"r_int64": [
"-123456789",
"-987654321"
],
"r_uint32": [
1,
2,
3
],
"r_uint64": [
"6789012345",
"3456789012"
],
"r_sint32": [
-1,
-2,
-3
],
"r_sint64": [
"-6789012345",
"-3456789012"
],
"r_float": [
3.14,
6.28
],
"r_double": [
2.99792458e+08,
6.62606957e-34
],
"r_string": [
"happy",
"days"
],
"r_bytes": [
"c2tpdHRsZXM=",
"bSZtJ3M="
]
}`
innerSimple = &pb.Simple{OInt32: proto.Int32(-32)}
innerSimple2 = &pb.Simple{OInt64: proto.Int64(25)}
innerRepeats = &pb.Repeats{RString: []string{"roses", "red"}}
innerRepeats2 = &pb.Repeats{RString: []string{"violets", "blue"}}
complexObject = &pb.Widget{
Color: pb.Widget_GREEN.Enum(),
RColor: []pb.Widget_Color{pb.Widget_RED, pb.Widget_GREEN, pb.Widget_BLUE},
Simple: innerSimple,
RSimple: []*pb.Simple{innerSimple, innerSimple2},
Repeats: innerRepeats,
RRepeats: []*pb.Repeats{innerRepeats, innerRepeats2},
}
complexObjectJSON = `{"color":1,` +
`"r_color":[0,1,2],` +
`"simple":{"o_int32":-32},` +
`"r_simple":[{"o_int32":-32},{"o_int64":"25"}],` +
`"repeats":{"r_string":["roses","red"]},` +
`"r_repeats":[{"r_string":["roses","red"]},{"r_string":["violets","blue"]}]` +
`}`
complexObjectPrettyJSON = `{
"color": "GREEN",
"r_color": [
"RED",
"GREEN",
"BLUE"
],
"simple": {
"o_int32": -32
},
"r_simple": [
{
"o_int32": -32
},
{
"o_int64": "25"
}
],
"repeats": {
"r_string": [
"roses",
"red"
]
},
"r_repeats": [
{
"r_string": [
"roses",
"red"
]
},
{
"r_string": [
"violets",
"blue"
]
}
]
}`
colorPrettyJSON = `{
"color": 2
}`
colorListPrettyJSON = `{
"color": 1000,
"r_color": [
"RED"
]
}`
nummyPrettyJSON = `{
"nummy": {
"1": 2,
"3": 4
}
}`
objjyPrettyJSON = `{
"objjy": {
"1": {
"dub": 1
}
}
}`
)
var marshallingTests = []struct {
desc string
marshaller Marshaller
pb proto.Message
json string
}{
{"simple flat object", marshaller, simpleObject, simpleObjectJSON},
{"simple pretty object", marshallerAllOptions, simpleObject, simpleObjectPrettyJSON},
{"repeated fields flat object", marshaller, repeatsObject, repeatsObjectJSON},
{"repeated fields pretty object", marshallerAllOptions, repeatsObject, repeatsObjectPrettyJSON},
{"nested message/enum flat object", marshaller, complexObject, complexObjectJSON},
{"nested message/enum pretty object", marshallerAllOptions, complexObject, complexObjectPrettyJSON},
{"enum-string flat object", Marshaller{EnumsAsString: true},
&pb.Widget{Color: pb.Widget_BLUE.Enum()}, `{"color":"BLUE"}`},
{"enum-value pretty object", Marshaller{Indent: " "},
&pb.Widget{Color: pb.Widget_BLUE.Enum()}, colorPrettyJSON},
{"unknown enum value object", marshallerAllOptions,
&pb.Widget{Color: pb.Widget_Color(1000).Enum(), RColor: []pb.Widget_Color{pb.Widget_RED}}, colorListPrettyJSON},
{"proto3 object with empty value", marshaller, &pb.Simple3{}, `{"dub":0}`},
{"map<int64, int32>", marshaller, &pb.Mappy{Nummy: map[int64]int32{1: 2, 3: 4}}, `{"nummy":{"1":2,"3":4}}`},
{"map<int64, int32>", marshallerAllOptions, &pb.Mappy{Nummy: map[int64]int32{1: 2, 3: 4}}, nummyPrettyJSON},
{"map<string, string>", marshaller,
&pb.Mappy{Strry: map[string]string{`"one"`: "two", "three": "four"}},
`{"strry":{"\"one\"":"two","three":"four"}}`},
{"map<int32, Object>", marshaller,
&pb.Mappy{Objjy: map[int32]*pb.Simple3{1: &pb.Simple3{Dub: 1}}}, `{"objjy":{"1":{"dub":1}}}`},
{"map<int32, Object>", marshallerAllOptions,
&pb.Mappy{Objjy: map[int32]*pb.Simple3{1: &pb.Simple3{Dub: 1}}}, objjyPrettyJSON},
{"map<int64, string>", marshaller, &pb.Mappy{Buggy: map[int64]string{1234: "yup"}},
`{"buggy":{"1234":"yup"}}`},
{"map<bool, bool>", marshaller, &pb.Mappy{Booly: map[bool]bool{false: true}}, `{"booly":{"false":true}}`},
{"proto2 map<int64, string>", marshaller, &pb.Maps{MInt64Str: map[int64]string{213: "cat"}},
`{"m_int64_str":{"213":"cat"}}`},
{"proto2 map<bool, Object>", marshaller,
&pb.Maps{MBoolSimple: map[bool]*pb.Simple{true: &pb.Simple{OInt32: proto.Int32(1)}}},
`{"m_bool_simple":{"true":{"o_int32":1}}}`},
}
func TestMarshalling(t *testing.T) {
for _, tt := range marshallingTests {
json, err := tt.marshaller.MarshalToString(tt.pb)
if err != nil {
t.Errorf("%s: marshalling error: %v", tt.desc, err)
} else if tt.json != json {
t.Errorf("%s: got [%v] want [%v]", tt.desc, json, tt.json)
}
}
}
var unmarshallingTests = []struct {
desc string
json string
pb proto.Message
}{
{"simple flat object", simpleObjectJSON, simpleObject},
{"simple pretty object", simpleObjectPrettyJSON, simpleObject},
{"repeated fields flat object", repeatsObjectJSON, repeatsObject},
{"repeated fields pretty object", repeatsObjectPrettyJSON, repeatsObject},
{"nested message/enum flat object", complexObjectJSON, complexObject},
{"nested message/enum pretty object", complexObjectPrettyJSON, complexObject},
{"enum-string object", `{"color":"BLUE"}`, &pb.Widget{Color: pb.Widget_BLUE.Enum()}},
{"enum-value object", "{\n \"color\": 2\n}", &pb.Widget{Color: pb.Widget_BLUE.Enum()}},
{"unknown enum value object",
"{\n \"color\": 1000,\n \"r_color\": [\n \"RED\"\n ]\n}",
&pb.Widget{Color: pb.Widget_Color(1000).Enum(), RColor: []pb.Widget_Color{pb.Widget_RED}}},
{"unquoted int64 object", `{"o_int64":-314}`, &pb.Simple{OInt64: proto.Int64(-314)}},
{"unquoted uint64 object", `{"o_uint64":123}`, &pb.Simple{OUint64: proto.Uint64(123)}},
{"map<int64, int32>", `{"nummy":{"1":2,"3":4}}`, &pb.Mappy{Nummy: map[int64]int32{1: 2, 3: 4}}},
{"map<string, string>", `{"strry":{"\"one\"":"two","three":"four"}}`, &pb.Mappy{Strry: map[string]string{`"one"`: "two", "three": "four"}}},
{"map<int32, Object>", `{"objjy":{"1":{"dub":1}}}`, &pb.Mappy{Objjy: map[int32]*pb.Simple3{1: &pb.Simple3{Dub: 1}}}},
}
func TestUnmarshalling(t *testing.T) {
for _, tt := range unmarshallingTests {
// Make a new instance of the type of our expected object.
p := proto.Clone(tt.pb)
p.Reset()
err := UnmarshalString(tt.json, p)
if err != nil {
t.Error(err)
continue
}
// For easier diffs, compare text strings of the protos.
exp := proto.MarshalTextString(tt.pb)
act := proto.MarshalTextString(p)
if string(exp) != string(act) {
t.Errorf("%s: got [%s] want [%s]", tt.desc, act, exp)
}
}
}
var unmarshallingShouldError = []struct {
desc string
in string
}{
{"a value", "666"},
{"gibberish", "{adskja123;l23=-="},
}
func TestUnmarshallingBadInput(t *testing.T) {
for _, tt := range unmarshallingShouldError {
obj := &pb.Simple{}
err := UnmarshalString(tt.in, obj)
if err == nil {
t.Errorf("an error was expected when parsing %q instead of an object", tt.desc)
}
}
}

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# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2015 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
regenerate:
protoc --go_out=. *.proto

46
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2015 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
syntax = "proto3";
package jsonpb;
message Simple3 {
double dub = 1;
}
message Mappy {
map<int64, int32> nummy = 1;
map<string, string> strry = 2;
map<int32, Simple3> objjy = 3;
map<int64, string> buggy = 4;
map<bool, bool> booly = 5;
}

86
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2015 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
syntax = "proto2";
package jsonpb;
// Test message for holding primitive types.
message Simple {
optional bool o_bool = 1;
optional int32 o_int32 = 2;
optional int64 o_int64 = 3;
optional uint32 o_uint32 = 4;
optional uint64 o_uint64 = 5;
optional sint32 o_sint32 = 6;
optional sint64 o_sint64 = 7;
optional float o_float = 8;
optional double o_double = 9;
optional string o_string = 10;
optional bytes o_bytes = 11;
}
// Test message for holding repeated primitives.
message Repeats {
repeated bool r_bool = 1;
repeated int32 r_int32 = 2;
repeated int64 r_int64 = 3;
repeated uint32 r_uint32 = 4;
repeated uint64 r_uint64 = 5;
repeated sint32 r_sint32 = 6;
repeated sint64 r_sint64 = 7;
repeated float r_float = 8;
repeated double r_double = 9;
repeated string r_string = 10;
repeated bytes r_bytes = 11;
}
// Test message for holding enums and nested messages.
message Widget {
enum Color {
RED = 0;
GREEN = 1;
BLUE = 2;
};
optional Color color = 1;
repeated Color r_color = 2;
optional Simple simple = 10;
repeated Simple r_simple = 11;
optional Repeats repeats = 20;
repeated Repeats r_repeats = 21;
}
message Maps {
map<int64, string> m_int64_str = 1;
map<bool, Simple> m_bool_simple = 2;
}

43
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@ -0,0 +1,43 @@
# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
install:
go install
test: install generate-test-pbs
go test
generate-test-pbs:
make install
make -C testdata
protoc --go_out=Mtestdata/test.proto=github.com/golang/protobuf/proto/testdata:. proto3_proto/proto3.proto
make

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Protocol buffer deep copy and merge.
// TODO: MessageSet and RawMessage.
package proto
import (
"log"
"reflect"
"strings"
)
// Clone returns a deep copy of a protocol buffer.
func Clone(pb Message) Message {
in := reflect.ValueOf(pb)
if in.IsNil() {
return pb
}
out := reflect.New(in.Type().Elem())
// out is empty so a merge is a deep copy.
mergeStruct(out.Elem(), in.Elem())
return out.Interface().(Message)
}
// Merge merges src into dst.
// Required and optional fields that are set in src will be set to that value in dst.
// Elements of repeated fields will be appended.
// Merge panics if src and dst are not the same type, or if dst is nil.
func Merge(dst, src Message) {
in := reflect.ValueOf(src)
out := reflect.ValueOf(dst)
if out.IsNil() {
panic("proto: nil destination")
}
if in.Type() != out.Type() {
// Explicit test prior to mergeStruct so that mistyped nils will fail
panic("proto: type mismatch")
}
if in.IsNil() {
// Merging nil into non-nil is a quiet no-op
return
}
mergeStruct(out.Elem(), in.Elem())
}
func mergeStruct(out, in reflect.Value) {
sprop := GetProperties(in.Type())
for i := 0; i < in.NumField(); i++ {
f := in.Type().Field(i)
if strings.HasPrefix(f.Name, "XXX_") {
continue
}
mergeAny(out.Field(i), in.Field(i), false, sprop.Prop[i])
}
if emIn, ok := in.Addr().Interface().(extendableProto); ok {
emOut := out.Addr().Interface().(extendableProto)
mergeExtension(emOut.ExtensionMap(), emIn.ExtensionMap())
}
uf := in.FieldByName("XXX_unrecognized")
if !uf.IsValid() {
return
}
uin := uf.Bytes()
if len(uin) > 0 {
out.FieldByName("XXX_unrecognized").SetBytes(append([]byte(nil), uin...))
}
}
// mergeAny performs a merge between two values of the same type.
// viaPtr indicates whether the values were indirected through a pointer (implying proto2).
// prop is set if this is a struct field (it may be nil).
func mergeAny(out, in reflect.Value, viaPtr bool, prop *Properties) {
if in.Type() == protoMessageType {
if !in.IsNil() {
if out.IsNil() {
out.Set(reflect.ValueOf(Clone(in.Interface().(Message))))
} else {
Merge(out.Interface().(Message), in.Interface().(Message))
}
}
return
}
switch in.Kind() {
case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
reflect.String, reflect.Uint32, reflect.Uint64:
if !viaPtr && isProto3Zero(in) {
return
}
out.Set(in)
case reflect.Map:
if in.Len() == 0 {
return
}
if out.IsNil() {
out.Set(reflect.MakeMap(in.Type()))
}
// For maps with value types of *T or []byte we need to deep copy each value.
elemKind := in.Type().Elem().Kind()
for _, key := range in.MapKeys() {
var val reflect.Value
switch elemKind {
case reflect.Ptr:
val = reflect.New(in.Type().Elem().Elem())
mergeAny(val, in.MapIndex(key), false, nil)
case reflect.Slice:
val = in.MapIndex(key)
val = reflect.ValueOf(append([]byte{}, val.Bytes()...))
default:
val = in.MapIndex(key)
}
out.SetMapIndex(key, val)
}
case reflect.Ptr:
if in.IsNil() {
return
}
if out.IsNil() {
out.Set(reflect.New(in.Elem().Type()))
}
mergeAny(out.Elem(), in.Elem(), true, nil)
case reflect.Slice:
if in.IsNil() {
return
}
if in.Type().Elem().Kind() == reflect.Uint8 {
// []byte is a scalar bytes field, not a repeated field.
// Edge case: if this is in a proto3 message, a zero length
// bytes field is considered the zero value, and should not
// be merged.
if prop != nil && prop.proto3 && in.Len() == 0 {
return
}
// Make a deep copy.
// Append to []byte{} instead of []byte(nil) so that we never end up
// with a nil result.
out.SetBytes(append([]byte{}, in.Bytes()...))
return
}
n := in.Len()
if out.IsNil() {
out.Set(reflect.MakeSlice(in.Type(), 0, n))
}
switch in.Type().Elem().Kind() {
case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64,
reflect.String, reflect.Uint32, reflect.Uint64:
out.Set(reflect.AppendSlice(out, in))
default:
for i := 0; i < n; i++ {
x := reflect.Indirect(reflect.New(in.Type().Elem()))
mergeAny(x, in.Index(i), false, nil)
out.Set(reflect.Append(out, x))
}
}
case reflect.Struct:
mergeStruct(out, in)
default:
// unknown type, so not a protocol buffer
log.Printf("proto: don't know how to copy %v", in)
}
}
func mergeExtension(out, in map[int32]Extension) {
for extNum, eIn := range in {
eOut := Extension{desc: eIn.desc}
if eIn.value != nil {
v := reflect.New(reflect.TypeOf(eIn.value)).Elem()
mergeAny(v, reflect.ValueOf(eIn.value), false, nil)
eOut.value = v.Interface()
}
if eIn.enc != nil {
eOut.enc = make([]byte, len(eIn.enc))
copy(eOut.enc, eIn.enc)
}
out[extNum] = eOut
}
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"testing"
"github.com/golang/protobuf/proto"
proto3pb "github.com/golang/protobuf/proto/proto3_proto"
pb "github.com/golang/protobuf/proto/testdata"
)
var cloneTestMessage = &pb.MyMessage{
Count: proto.Int32(42),
Name: proto.String("Dave"),
Pet: []string{"bunny", "kitty", "horsey"},
Inner: &pb.InnerMessage{
Host: proto.String("niles"),
Port: proto.Int32(9099),
Connected: proto.Bool(true),
},
Others: []*pb.OtherMessage{
{
Value: []byte("some bytes"),
},
},
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: proto.Int32(6),
},
RepBytes: [][]byte{[]byte("sham"), []byte("wow")},
}
func init() {
ext := &pb.Ext{
Data: proto.String("extension"),
}
if err := proto.SetExtension(cloneTestMessage, pb.E_Ext_More, ext); err != nil {
panic("SetExtension: " + err.Error())
}
}
func TestClone(t *testing.T) {
m := proto.Clone(cloneTestMessage).(*pb.MyMessage)
if !proto.Equal(m, cloneTestMessage) {
t.Errorf("Clone(%v) = %v", cloneTestMessage, m)
}
// Verify it was a deep copy.
*m.Inner.Port++
if proto.Equal(m, cloneTestMessage) {
t.Error("Mutating clone changed the original")
}
// Byte fields and repeated fields should be copied.
if &m.Pet[0] == &cloneTestMessage.Pet[0] {
t.Error("Pet: repeated field not copied")
}
if &m.Others[0] == &cloneTestMessage.Others[0] {
t.Error("Others: repeated field not copied")
}
if &m.Others[0].Value[0] == &cloneTestMessage.Others[0].Value[0] {
t.Error("Others[0].Value: bytes field not copied")
}
if &m.RepBytes[0] == &cloneTestMessage.RepBytes[0] {
t.Error("RepBytes: repeated field not copied")
}
if &m.RepBytes[0][0] == &cloneTestMessage.RepBytes[0][0] {
t.Error("RepBytes[0]: bytes field not copied")
}
}
func TestCloneNil(t *testing.T) {
var m *pb.MyMessage
if c := proto.Clone(m); !proto.Equal(m, c) {
t.Errorf("Clone(%v) = %v", m, c)
}
}
var mergeTests = []struct {
src, dst, want proto.Message
}{
{
src: &pb.MyMessage{
Count: proto.Int32(42),
},
dst: &pb.MyMessage{
Name: proto.String("Dave"),
},
want: &pb.MyMessage{
Count: proto.Int32(42),
Name: proto.String("Dave"),
},
},
{
src: &pb.MyMessage{
Inner: &pb.InnerMessage{
Host: proto.String("hey"),
Connected: proto.Bool(true),
},
Pet: []string{"horsey"},
Others: []*pb.OtherMessage{
{
Value: []byte("some bytes"),
},
},
},
dst: &pb.MyMessage{
Inner: &pb.InnerMessage{
Host: proto.String("niles"),
Port: proto.Int32(9099),
},
Pet: []string{"bunny", "kitty"},
Others: []*pb.OtherMessage{
{
Key: proto.Int64(31415926535),
},
{
// Explicitly test a src=nil field
Inner: nil,
},
},
},
want: &pb.MyMessage{
Inner: &pb.InnerMessage{
Host: proto.String("hey"),
Connected: proto.Bool(true),
Port: proto.Int32(9099),
},
Pet: []string{"bunny", "kitty", "horsey"},
Others: []*pb.OtherMessage{
{
Key: proto.Int64(31415926535),
},
{},
{
Value: []byte("some bytes"),
},
},
},
},
{
src: &pb.MyMessage{
RepBytes: [][]byte{[]byte("wow")},
},
dst: &pb.MyMessage{
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: proto.Int32(6),
},
RepBytes: [][]byte{[]byte("sham")},
},
want: &pb.MyMessage{
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: proto.Int32(6),
},
RepBytes: [][]byte{[]byte("sham"), []byte("wow")},
},
},
// Check that a scalar bytes field replaces rather than appends.
{
src: &pb.OtherMessage{Value: []byte("foo")},
dst: &pb.OtherMessage{Value: []byte("bar")},
want: &pb.OtherMessage{Value: []byte("foo")},
},
{
src: &pb.MessageWithMap{
NameMapping: map[int32]string{6: "Nigel"},
MsgMapping: map[int64]*pb.FloatingPoint{
0x4001: &pb.FloatingPoint{F: proto.Float64(2.0)},
},
ByteMapping: map[bool][]byte{true: []byte("wowsa")},
},
dst: &pb.MessageWithMap{
NameMapping: map[int32]string{
6: "Bruce", // should be overwritten
7: "Andrew",
},
},
want: &pb.MessageWithMap{
NameMapping: map[int32]string{
6: "Nigel",
7: "Andrew",
},
MsgMapping: map[int64]*pb.FloatingPoint{
0x4001: &pb.FloatingPoint{F: proto.Float64(2.0)},
},
ByteMapping: map[bool][]byte{true: []byte("wowsa")},
},
},
// proto3 shouldn't merge zero values,
// in the same way that proto2 shouldn't merge nils.
{
src: &proto3pb.Message{
Name: "Aaron",
Data: []byte(""), // zero value, but not nil
},
dst: &proto3pb.Message{
HeightInCm: 176,
Data: []byte("texas!"),
},
want: &proto3pb.Message{
Name: "Aaron",
HeightInCm: 176,
Data: []byte("texas!"),
},
},
}
func TestMerge(t *testing.T) {
for _, m := range mergeTests {
got := proto.Clone(m.dst)
proto.Merge(got, m.src)
if !proto.Equal(got, m.want) {
t.Errorf("Merge(%v, %v)\n got %v\nwant %v\n", m.dst, m.src, got, m.want)
}
}
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Routines for decoding protocol buffer data to construct in-memory representations.
*/
import (
"errors"
"fmt"
"io"
"os"
"reflect"
)
// errOverflow is returned when an integer is too large to be represented.
var errOverflow = errors.New("proto: integer overflow")
// The fundamental decoders that interpret bytes on the wire.
// Those that take integer types all return uint64 and are
// therefore of type valueDecoder.
// DecodeVarint reads a varint-encoded integer from the slice.
// It returns the integer and the number of bytes consumed, or
// zero if there is not enough.
// This is the format for the
// int32, int64, uint32, uint64, bool, and enum
// protocol buffer types.
func DecodeVarint(buf []byte) (x uint64, n int) {
// x, n already 0
for shift := uint(0); shift < 64; shift += 7 {
if n >= len(buf) {
return 0, 0
}
b := uint64(buf[n])
n++
x |= (b & 0x7F) << shift
if (b & 0x80) == 0 {
return x, n
}
}
// The number is too large to represent in a 64-bit value.
return 0, 0
}
// DecodeVarint reads a varint-encoded integer from the Buffer.
// This is the format for the
// int32, int64, uint32, uint64, bool, and enum
// protocol buffer types.
func (p *Buffer) DecodeVarint() (x uint64, err error) {
// x, err already 0
i := p.index
l := len(p.buf)
for shift := uint(0); shift < 64; shift += 7 {
if i >= l {
err = io.ErrUnexpectedEOF
return
}
b := p.buf[i]
i++
x |= (uint64(b) & 0x7F) << shift
if b < 0x80 {
p.index = i
return
}
}
// The number is too large to represent in a 64-bit value.
err = errOverflow
return
}
// DecodeFixed64 reads a 64-bit integer from the Buffer.
// This is the format for the
// fixed64, sfixed64, and double protocol buffer types.
func (p *Buffer) DecodeFixed64() (x uint64, err error) {
// x, err already 0
i := p.index + 8
if i < 0 || i > len(p.buf) {
err = io.ErrUnexpectedEOF
return
}
p.index = i
x = uint64(p.buf[i-8])
x |= uint64(p.buf[i-7]) << 8
x |= uint64(p.buf[i-6]) << 16
x |= uint64(p.buf[i-5]) << 24
x |= uint64(p.buf[i-4]) << 32
x |= uint64(p.buf[i-3]) << 40
x |= uint64(p.buf[i-2]) << 48
x |= uint64(p.buf[i-1]) << 56
return
}
// DecodeFixed32 reads a 32-bit integer from the Buffer.
// This is the format for the
// fixed32, sfixed32, and float protocol buffer types.
func (p *Buffer) DecodeFixed32() (x uint64, err error) {
// x, err already 0
i := p.index + 4
if i < 0 || i > len(p.buf) {
err = io.ErrUnexpectedEOF
return
}
p.index = i
x = uint64(p.buf[i-4])
x |= uint64(p.buf[i-3]) << 8
x |= uint64(p.buf[i-2]) << 16
x |= uint64(p.buf[i-1]) << 24
return
}
// DecodeZigzag64 reads a zigzag-encoded 64-bit integer
// from the Buffer.
// This is the format used for the sint64 protocol buffer type.
func (p *Buffer) DecodeZigzag64() (x uint64, err error) {
x, err = p.DecodeVarint()
if err != nil {
return
}
x = (x >> 1) ^ uint64((int64(x&1)<<63)>>63)
return
}
// DecodeZigzag32 reads a zigzag-encoded 32-bit integer
// from the Buffer.
// This is the format used for the sint32 protocol buffer type.
func (p *Buffer) DecodeZigzag32() (x uint64, err error) {
x, err = p.DecodeVarint()
if err != nil {
return
}
x = uint64((uint32(x) >> 1) ^ uint32((int32(x&1)<<31)>>31))
return
}
// These are not ValueDecoders: they produce an array of bytes or a string.
// bytes, embedded messages
// DecodeRawBytes reads a count-delimited byte buffer from the Buffer.
// This is the format used for the bytes protocol buffer
// type and for embedded messages.
func (p *Buffer) DecodeRawBytes(alloc bool) (buf []byte, err error) {
n, err := p.DecodeVarint()
if err != nil {
return nil, err
}
nb := int(n)
if nb < 0 {
return nil, fmt.Errorf("proto: bad byte length %d", nb)
}
end := p.index + nb
if end < p.index || end > len(p.buf) {
return nil, io.ErrUnexpectedEOF
}
if !alloc {
// todo: check if can get more uses of alloc=false
buf = p.buf[p.index:end]
p.index += nb
return
}
buf = make([]byte, nb)
copy(buf, p.buf[p.index:])
p.index += nb
return
}
// DecodeStringBytes reads an encoded string from the Buffer.
// This is the format used for the proto2 string type.
func (p *Buffer) DecodeStringBytes() (s string, err error) {
buf, err := p.DecodeRawBytes(false)
if err != nil {
return
}
return string(buf), nil
}
// Skip the next item in the buffer. Its wire type is decoded and presented as an argument.
// If the protocol buffer has extensions, and the field matches, add it as an extension.
// Otherwise, if the XXX_unrecognized field exists, append the skipped data there.
func (o *Buffer) skipAndSave(t reflect.Type, tag, wire int, base structPointer, unrecField field) error {
oi := o.index
err := o.skip(t, tag, wire)
if err != nil {
return err
}
if !unrecField.IsValid() {
return nil
}
ptr := structPointer_Bytes(base, unrecField)
// Add the skipped field to struct field
obuf := o.buf
o.buf = *ptr
o.EncodeVarint(uint64(tag<<3 | wire))
*ptr = append(o.buf, obuf[oi:o.index]...)
o.buf = obuf
return nil
}
// Skip the next item in the buffer. Its wire type is decoded and presented as an argument.
func (o *Buffer) skip(t reflect.Type, tag, wire int) error {
var u uint64
var err error
switch wire {
case WireVarint:
_, err = o.DecodeVarint()
case WireFixed64:
_, err = o.DecodeFixed64()
case WireBytes:
_, err = o.DecodeRawBytes(false)
case WireFixed32:
_, err = o.DecodeFixed32()
case WireStartGroup:
for {
u, err = o.DecodeVarint()
if err != nil {
break
}
fwire := int(u & 0x7)
if fwire == WireEndGroup {
break
}
ftag := int(u >> 3)
err = o.skip(t, ftag, fwire)
if err != nil {
break
}
}
default:
err = fmt.Errorf("proto: can't skip unknown wire type %d for %s", wire, t)
}
return err
}
// Unmarshaler is the interface representing objects that can
// unmarshal themselves. The method should reset the receiver before
// decoding starts. The argument points to data that may be
// overwritten, so implementations should not keep references to the
// buffer.
type Unmarshaler interface {
Unmarshal([]byte) error
}
// Unmarshal parses the protocol buffer representation in buf and places the
// decoded result in pb. If the struct underlying pb does not match
// the data in buf, the results can be unpredictable.
//
// Unmarshal resets pb before starting to unmarshal, so any
// existing data in pb is always removed. Use UnmarshalMerge
// to preserve and append to existing data.
func Unmarshal(buf []byte, pb Message) error {
pb.Reset()
return UnmarshalMerge(buf, pb)
}
// UnmarshalMerge parses the protocol buffer representation in buf and
// writes the decoded result to pb. If the struct underlying pb does not match
// the data in buf, the results can be unpredictable.
//
// UnmarshalMerge merges into existing data in pb.
// Most code should use Unmarshal instead.
func UnmarshalMerge(buf []byte, pb Message) error {
// If the object can unmarshal itself, let it.
if u, ok := pb.(Unmarshaler); ok {
return u.Unmarshal(buf)
}
return NewBuffer(buf).Unmarshal(pb)
}
// Unmarshal parses the protocol buffer representation in the
// Buffer and places the decoded result in pb. If the struct
// underlying pb does not match the data in the buffer, the results can be
// unpredictable.
func (p *Buffer) Unmarshal(pb Message) error {
// If the object can unmarshal itself, let it.
if u, ok := pb.(Unmarshaler); ok {
err := u.Unmarshal(p.buf[p.index:])
p.index = len(p.buf)
return err
}
typ, base, err := getbase(pb)
if err != nil {
return err
}
err = p.unmarshalType(typ.Elem(), GetProperties(typ.Elem()), false, base)
if collectStats {
stats.Decode++
}
return err
}
// unmarshalType does the work of unmarshaling a structure.
func (o *Buffer) unmarshalType(st reflect.Type, prop *StructProperties, is_group bool, base structPointer) error {
var state errorState
required, reqFields := prop.reqCount, uint64(0)
var err error
for err == nil && o.index < len(o.buf) {
oi := o.index
var u uint64
u, err = o.DecodeVarint()
if err != nil {
break
}
wire := int(u & 0x7)
if wire == WireEndGroup {
if is_group {
return nil // input is satisfied
}
return fmt.Errorf("proto: %s: wiretype end group for non-group", st)
}
tag := int(u >> 3)
if tag <= 0 {
return fmt.Errorf("proto: %s: illegal tag %d (wire type %d)", st, tag, wire)
}
fieldnum, ok := prop.decoderTags.get(tag)
if !ok {
// Maybe it's an extension?
if prop.extendable {
if e := structPointer_Interface(base, st).(extendableProto); isExtensionField(e, int32(tag)) {
if err = o.skip(st, tag, wire); err == nil {
ext := e.ExtensionMap()[int32(tag)] // may be missing
ext.enc = append(ext.enc, o.buf[oi:o.index]...)
e.ExtensionMap()[int32(tag)] = ext
}
continue
}
}
err = o.skipAndSave(st, tag, wire, base, prop.unrecField)
continue
}
p := prop.Prop[fieldnum]
if p.dec == nil {
fmt.Fprintf(os.Stderr, "proto: no protobuf decoder for %s.%s\n", st, st.Field(fieldnum).Name)
continue
}
dec := p.dec
if wire != WireStartGroup && wire != p.WireType {
if wire == WireBytes && p.packedDec != nil {
// a packable field
dec = p.packedDec
} else {
err = fmt.Errorf("proto: bad wiretype for field %s.%s: got wiretype %d, want %d", st, st.Field(fieldnum).Name, wire, p.WireType)
continue
}
}
decErr := dec(o, p, base)
if decErr != nil && !state.shouldContinue(decErr, p) {
err = decErr
}
if err == nil && p.Required {
// Successfully decoded a required field.
if tag <= 64 {
// use bitmap for fields 1-64 to catch field reuse.
var mask uint64 = 1 << uint64(tag-1)
if reqFields&mask == 0 {
// new required field
reqFields |= mask
required--
}
} else {
// This is imprecise. It can be fooled by a required field
// with a tag > 64 that is encoded twice; that's very rare.
// A fully correct implementation would require allocating
// a data structure, which we would like to avoid.
required--
}
}
}
if err == nil {
if is_group {
return io.ErrUnexpectedEOF
}
if state.err != nil {
return state.err
}
if required > 0 {
// Not enough information to determine the exact field. If we use extra
// CPU, we could determine the field only if the missing required field
// has a tag <= 64 and we check reqFields.
return &RequiredNotSetError{"{Unknown}"}
}
}
return err
}
// Individual type decoders
// For each,
// u is the decoded value,
// v is a pointer to the field (pointer) in the struct
// Sizes of the pools to allocate inside the Buffer.
// The goal is modest amortization and allocation
// on at least 16-byte boundaries.
const (
boolPoolSize = 16
uint32PoolSize = 8
uint64PoolSize = 4
)
// Decode a bool.
func (o *Buffer) dec_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
if len(o.bools) == 0 {
o.bools = make([]bool, boolPoolSize)
}
o.bools[0] = u != 0
*structPointer_Bool(base, p.field) = &o.bools[0]
o.bools = o.bools[1:]
return nil
}
func (o *Buffer) dec_proto3_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
*structPointer_BoolVal(base, p.field) = u != 0
return nil
}
// Decode an int32.
func (o *Buffer) dec_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word32_Set(structPointer_Word32(base, p.field), o, uint32(u))
return nil
}
func (o *Buffer) dec_proto3_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word32Val_Set(structPointer_Word32Val(base, p.field), uint32(u))
return nil
}
// Decode an int64.
func (o *Buffer) dec_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word64_Set(structPointer_Word64(base, p.field), o, u)
return nil
}
func (o *Buffer) dec_proto3_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
word64Val_Set(structPointer_Word64Val(base, p.field), o, u)
return nil
}
// Decode a string.
func (o *Buffer) dec_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
*structPointer_String(base, p.field) = &s
return nil
}
func (o *Buffer) dec_proto3_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
*structPointer_StringVal(base, p.field) = s
return nil
}
// Decode a slice of bytes ([]byte).
func (o *Buffer) dec_slice_byte(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
*structPointer_Bytes(base, p.field) = b
return nil
}
// Decode a slice of bools ([]bool).
func (o *Buffer) dec_slice_bool(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
v := structPointer_BoolSlice(base, p.field)
*v = append(*v, u != 0)
return nil
}
// Decode a slice of bools ([]bool) in packed format.
func (o *Buffer) dec_slice_packed_bool(p *Properties, base structPointer) error {
v := structPointer_BoolSlice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded bools
y := *v
for i := 0; i < nb; i++ {
u, err := p.valDec(o)
if err != nil {
return err
}
y = append(y, u != 0)
}
*v = y
return nil
}
// Decode a slice of int32s ([]int32).
func (o *Buffer) dec_slice_int32(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
structPointer_Word32Slice(base, p.field).Append(uint32(u))
return nil
}
// Decode a slice of int32s ([]int32) in packed format.
func (o *Buffer) dec_slice_packed_int32(p *Properties, base structPointer) error {
v := structPointer_Word32Slice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded int32s
fin := o.index + nb
if fin < o.index {
return errOverflow
}
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
v.Append(uint32(u))
}
return nil
}
// Decode a slice of int64s ([]int64).
func (o *Buffer) dec_slice_int64(p *Properties, base structPointer) error {
u, err := p.valDec(o)
if err != nil {
return err
}
structPointer_Word64Slice(base, p.field).Append(u)
return nil
}
// Decode a slice of int64s ([]int64) in packed format.
func (o *Buffer) dec_slice_packed_int64(p *Properties, base structPointer) error {
v := structPointer_Word64Slice(base, p.field)
nn, err := o.DecodeVarint()
if err != nil {
return err
}
nb := int(nn) // number of bytes of encoded int64s
fin := o.index + nb
if fin < o.index {
return errOverflow
}
for o.index < fin {
u, err := p.valDec(o)
if err != nil {
return err
}
v.Append(u)
}
return nil
}
// Decode a slice of strings ([]string).
func (o *Buffer) dec_slice_string(p *Properties, base structPointer) error {
s, err := o.DecodeStringBytes()
if err != nil {
return err
}
v := structPointer_StringSlice(base, p.field)
*v = append(*v, s)
return nil
}
// Decode a slice of slice of bytes ([][]byte).
func (o *Buffer) dec_slice_slice_byte(p *Properties, base structPointer) error {
b, err := o.DecodeRawBytes(true)
if err != nil {
return err
}
v := structPointer_BytesSlice(base, p.field)
*v = append(*v, b)
return nil
}
// Decode a map field.
func (o *Buffer) dec_new_map(p *Properties, base structPointer) error {
raw, err := o.DecodeRawBytes(false)
if err != nil {
return err
}
oi := o.index // index at the end of this map entry
o.index -= len(raw) // move buffer back to start of map entry
mptr := structPointer_NewAt(base, p.field, p.mtype) // *map[K]V
if mptr.Elem().IsNil() {
mptr.Elem().Set(reflect.MakeMap(mptr.Type().Elem()))
}
v := mptr.Elem() // map[K]V
// Prepare addressable doubly-indirect placeholders for the key and value types.
// See enc_new_map for why.
keyptr := reflect.New(reflect.PtrTo(p.mtype.Key())).Elem() // addressable *K
keybase := toStructPointer(keyptr.Addr()) // **K
var valbase structPointer
var valptr reflect.Value
switch p.mtype.Elem().Kind() {
case reflect.Slice:
// []byte
var dummy []byte
valptr = reflect.ValueOf(&dummy) // *[]byte
valbase = toStructPointer(valptr) // *[]byte
case reflect.Ptr:
// message; valptr is **Msg; need to allocate the intermediate pointer
valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V
valptr.Set(reflect.New(valptr.Type().Elem()))
valbase = toStructPointer(valptr)
default:
// everything else
valptr = reflect.New(reflect.PtrTo(p.mtype.Elem())).Elem() // addressable *V
valbase = toStructPointer(valptr.Addr()) // **V
}
// Decode.
// This parses a restricted wire format, namely the encoding of a message
// with two fields. See enc_new_map for the format.
for o.index < oi {
// tagcode for key and value properties are always a single byte
// because they have tags 1 and 2.
tagcode := o.buf[o.index]
o.index++
switch tagcode {
case p.mkeyprop.tagcode[0]:
if err := p.mkeyprop.dec(o, p.mkeyprop, keybase); err != nil {
return err
}
case p.mvalprop.tagcode[0]:
if err := p.mvalprop.dec(o, p.mvalprop, valbase); err != nil {
return err
}
default:
// TODO: Should we silently skip this instead?
return fmt.Errorf("proto: bad map data tag %d", raw[0])
}
}
keyelem, valelem := keyptr.Elem(), valptr.Elem()
if !keyelem.IsValid() || !valelem.IsValid() {
// We did not decode the key or the value in the map entry.
// Either way, it's an invalid map entry.
return fmt.Errorf("proto: bad map data: missing key/val")
}
v.SetMapIndex(keyelem, valelem)
return nil
}
// Decode a group.
func (o *Buffer) dec_struct_group(p *Properties, base structPointer) error {
bas := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(bas) {
// allocate new nested message
bas = toStructPointer(reflect.New(p.stype))
structPointer_SetStructPointer(base, p.field, bas)
}
return o.unmarshalType(p.stype, p.sprop, true, bas)
}
// Decode an embedded message.
func (o *Buffer) dec_struct_message(p *Properties, base structPointer) (err error) {
raw, e := o.DecodeRawBytes(false)
if e != nil {
return e
}
bas := structPointer_GetStructPointer(base, p.field)
if structPointer_IsNil(bas) {
// allocate new nested message
bas = toStructPointer(reflect.New(p.stype))
structPointer_SetStructPointer(base, p.field, bas)
}
// If the object can unmarshal itself, let it.
if p.isUnmarshaler {
iv := structPointer_Interface(bas, p.stype)
return iv.(Unmarshaler).Unmarshal(raw)
}
obuf := o.buf
oi := o.index
o.buf = raw
o.index = 0
err = o.unmarshalType(p.stype, p.sprop, false, bas)
o.buf = obuf
o.index = oi
return err
}
// Decode a slice of embedded messages.
func (o *Buffer) dec_slice_struct_message(p *Properties, base structPointer) error {
return o.dec_slice_struct(p, false, base)
}
// Decode a slice of embedded groups.
func (o *Buffer) dec_slice_struct_group(p *Properties, base structPointer) error {
return o.dec_slice_struct(p, true, base)
}
// Decode a slice of structs ([]*struct).
func (o *Buffer) dec_slice_struct(p *Properties, is_group bool, base structPointer) error {
v := reflect.New(p.stype)
bas := toStructPointer(v)
structPointer_StructPointerSlice(base, p.field).Append(bas)
if is_group {
err := o.unmarshalType(p.stype, p.sprop, is_group, bas)
return err
}
raw, err := o.DecodeRawBytes(false)
if err != nil {
return err
}
// If the object can unmarshal itself, let it.
if p.isUnmarshaler {
iv := v.Interface()
return iv.(Unmarshaler).Unmarshal(raw)
}
obuf := o.buf
oi := o.index
o.buf = raw
o.index = 0
err = o.unmarshalType(p.stype, p.sprop, is_group, bas)
o.buf = obuf
o.index = oi
return err
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Protocol buffer comparison.
// TODO: MessageSet.
package proto
import (
"bytes"
"log"
"reflect"
"strings"
)
/*
Equal returns true iff protocol buffers a and b are equal.
The arguments must both be pointers to protocol buffer structs.
Equality is defined in this way:
- Two messages are equal iff they are the same type,
corresponding fields are equal, unknown field sets
are equal, and extensions sets are equal.
- Two set scalar fields are equal iff their values are equal.
If the fields are of a floating-point type, remember that
NaN != x for all x, including NaN.
- Two repeated fields are equal iff their lengths are the same,
and their corresponding elements are equal (a "bytes" field,
although represented by []byte, is not a repeated field)
- Two unset fields are equal.
- Two unknown field sets are equal if their current
encoded state is equal.
- Two extension sets are equal iff they have corresponding
elements that are pairwise equal.
- Every other combination of things are not equal.
The return value is undefined if a and b are not protocol buffers.
*/
func Equal(a, b Message) bool {
if a == nil || b == nil {
return a == b
}
v1, v2 := reflect.ValueOf(a), reflect.ValueOf(b)
if v1.Type() != v2.Type() {
return false
}
if v1.Kind() == reflect.Ptr {
if v1.IsNil() {
return v2.IsNil()
}
if v2.IsNil() {
return false
}
v1, v2 = v1.Elem(), v2.Elem()
}
if v1.Kind() != reflect.Struct {
return false
}
return equalStruct(v1, v2)
}
// v1 and v2 are known to have the same type.
func equalStruct(v1, v2 reflect.Value) bool {
for i := 0; i < v1.NumField(); i++ {
f := v1.Type().Field(i)
if strings.HasPrefix(f.Name, "XXX_") {
continue
}
f1, f2 := v1.Field(i), v2.Field(i)
if f.Type.Kind() == reflect.Ptr {
if n1, n2 := f1.IsNil(), f2.IsNil(); n1 && n2 {
// both unset
continue
} else if n1 != n2 {
// set/unset mismatch
return false
}
b1, ok := f1.Interface().(raw)
if ok {
b2 := f2.Interface().(raw)
// RawMessage
if !bytes.Equal(b1.Bytes(), b2.Bytes()) {
return false
}
continue
}
f1, f2 = f1.Elem(), f2.Elem()
}
if !equalAny(f1, f2) {
return false
}
}
if em1 := v1.FieldByName("XXX_extensions"); em1.IsValid() {
em2 := v2.FieldByName("XXX_extensions")
if !equalExtensions(v1.Type(), em1.Interface().(map[int32]Extension), em2.Interface().(map[int32]Extension)) {
return false
}
}
uf := v1.FieldByName("XXX_unrecognized")
if !uf.IsValid() {
return true
}
u1 := uf.Bytes()
u2 := v2.FieldByName("XXX_unrecognized").Bytes()
if !bytes.Equal(u1, u2) {
return false
}
return true
}
// v1 and v2 are known to have the same type.
func equalAny(v1, v2 reflect.Value) bool {
if v1.Type() == protoMessageType {
m1, _ := v1.Interface().(Message)
m2, _ := v2.Interface().(Message)
return Equal(m1, m2)
}
switch v1.Kind() {
case reflect.Bool:
return v1.Bool() == v2.Bool()
case reflect.Float32, reflect.Float64:
return v1.Float() == v2.Float()
case reflect.Int32, reflect.Int64:
return v1.Int() == v2.Int()
case reflect.Map:
if v1.Len() != v2.Len() {
return false
}
for _, key := range v1.MapKeys() {
val2 := v2.MapIndex(key)
if !val2.IsValid() {
// This key was not found in the second map.
return false
}
if !equalAny(v1.MapIndex(key), val2) {
return false
}
}
return true
case reflect.Ptr:
return equalAny(v1.Elem(), v2.Elem())
case reflect.Slice:
if v1.Type().Elem().Kind() == reflect.Uint8 {
// short circuit: []byte
if v1.IsNil() != v2.IsNil() {
return false
}
return bytes.Equal(v1.Interface().([]byte), v2.Interface().([]byte))
}
if v1.Len() != v2.Len() {
return false
}
for i := 0; i < v1.Len(); i++ {
if !equalAny(v1.Index(i), v2.Index(i)) {
return false
}
}
return true
case reflect.String:
return v1.Interface().(string) == v2.Interface().(string)
case reflect.Struct:
return equalStruct(v1, v2)
case reflect.Uint32, reflect.Uint64:
return v1.Uint() == v2.Uint()
}
// unknown type, so not a protocol buffer
log.Printf("proto: don't know how to compare %v", v1)
return false
}
// base is the struct type that the extensions are based on.
// em1 and em2 are extension maps.
func equalExtensions(base reflect.Type, em1, em2 map[int32]Extension) bool {
if len(em1) != len(em2) {
return false
}
for extNum, e1 := range em1 {
e2, ok := em2[extNum]
if !ok {
return false
}
m1, m2 := e1.value, e2.value
if m1 != nil && m2 != nil {
// Both are unencoded.
if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2)) {
return false
}
continue
}
// At least one is encoded. To do a semantically correct comparison
// we need to unmarshal them first.
var desc *ExtensionDesc
if m := extensionMaps[base]; m != nil {
desc = m[extNum]
}
if desc == nil {
log.Printf("proto: don't know how to compare extension %d of %v", extNum, base)
continue
}
var err error
if m1 == nil {
m1, err = decodeExtension(e1.enc, desc)
}
if m2 == nil && err == nil {
m2, err = decodeExtension(e2.enc, desc)
}
if err != nil {
// The encoded form is invalid.
log.Printf("proto: badly encoded extension %d of %v: %v", extNum, base, err)
return false
}
if !equalAny(reflect.ValueOf(m1), reflect.ValueOf(m2)) {
return false
}
}
return true
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2011 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"testing"
. "github.com/golang/protobuf/proto"
pb "github.com/golang/protobuf/proto/testdata"
)
// Four identical base messages.
// The init function adds extensions to some of them.
var messageWithoutExtension = &pb.MyMessage{Count: Int32(7)}
var messageWithExtension1a = &pb.MyMessage{Count: Int32(7)}
var messageWithExtension1b = &pb.MyMessage{Count: Int32(7)}
var messageWithExtension2 = &pb.MyMessage{Count: Int32(7)}
// Two messages with non-message extensions.
var messageWithInt32Extension1 = &pb.MyMessage{Count: Int32(8)}
var messageWithInt32Extension2 = &pb.MyMessage{Count: Int32(8)}
func init() {
ext1 := &pb.Ext{Data: String("Kirk")}
ext2 := &pb.Ext{Data: String("Picard")}
// messageWithExtension1a has ext1, but never marshals it.
if err := SetExtension(messageWithExtension1a, pb.E_Ext_More, ext1); err != nil {
panic("SetExtension on 1a failed: " + err.Error())
}
// messageWithExtension1b is the unmarshaled form of messageWithExtension1a.
if err := SetExtension(messageWithExtension1b, pb.E_Ext_More, ext1); err != nil {
panic("SetExtension on 1b failed: " + err.Error())
}
buf, err := Marshal(messageWithExtension1b)
if err != nil {
panic("Marshal of 1b failed: " + err.Error())
}
messageWithExtension1b.Reset()
if err := Unmarshal(buf, messageWithExtension1b); err != nil {
panic("Unmarshal of 1b failed: " + err.Error())
}
// messageWithExtension2 has ext2.
if err := SetExtension(messageWithExtension2, pb.E_Ext_More, ext2); err != nil {
panic("SetExtension on 2 failed: " + err.Error())
}
if err := SetExtension(messageWithInt32Extension1, pb.E_Ext_Number, Int32(23)); err != nil {
panic("SetExtension on Int32-1 failed: " + err.Error())
}
if err := SetExtension(messageWithInt32Extension1, pb.E_Ext_Number, Int32(24)); err != nil {
panic("SetExtension on Int32-2 failed: " + err.Error())
}
}
var EqualTests = []struct {
desc string
a, b Message
exp bool
}{
{"different types", &pb.GoEnum{}, &pb.GoTestField{}, false},
{"equal empty", &pb.GoEnum{}, &pb.GoEnum{}, true},
{"nil vs nil", nil, nil, true},
{"typed nil vs typed nil", (*pb.GoEnum)(nil), (*pb.GoEnum)(nil), true},
{"typed nil vs empty", (*pb.GoEnum)(nil), &pb.GoEnum{}, false},
{"different typed nil", (*pb.GoEnum)(nil), (*pb.GoTestField)(nil), false},
{"one set field, one unset field", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{}, false},
{"one set field zero, one unset field", &pb.GoTest{Param: Int32(0)}, &pb.GoTest{}, false},
{"different set fields", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{Label: String("bar")}, false},
{"equal set", &pb.GoTestField{Label: String("foo")}, &pb.GoTestField{Label: String("foo")}, true},
{"repeated, one set", &pb.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb.GoTest{}, false},
{"repeated, different length", &pb.GoTest{F_Int32Repeated: []int32{2, 3}}, &pb.GoTest{F_Int32Repeated: []int32{2}}, false},
{"repeated, different value", &pb.GoTest{F_Int32Repeated: []int32{2}}, &pb.GoTest{F_Int32Repeated: []int32{3}}, false},
{"repeated, equal", &pb.GoTest{F_Int32Repeated: []int32{2, 4}}, &pb.GoTest{F_Int32Repeated: []int32{2, 4}}, true},
{"repeated, nil equal nil", &pb.GoTest{F_Int32Repeated: nil}, &pb.GoTest{F_Int32Repeated: nil}, true},
{"repeated, nil equal empty", &pb.GoTest{F_Int32Repeated: nil}, &pb.GoTest{F_Int32Repeated: []int32{}}, true},
{"repeated, empty equal nil", &pb.GoTest{F_Int32Repeated: []int32{}}, &pb.GoTest{F_Int32Repeated: nil}, true},
{
"nested, different",
&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("foo")}},
&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("bar")}},
false,
},
{
"nested, equal",
&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("wow")}},
&pb.GoTest{RequiredField: &pb.GoTestField{Label: String("wow")}},
true,
},
{"bytes", &pb.OtherMessage{Value: []byte("foo")}, &pb.OtherMessage{Value: []byte("foo")}, true},
{"bytes, empty", &pb.OtherMessage{Value: []byte{}}, &pb.OtherMessage{Value: []byte{}}, true},
{"bytes, empty vs nil", &pb.OtherMessage{Value: []byte{}}, &pb.OtherMessage{Value: nil}, false},
{
"repeated bytes",
&pb.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
&pb.MyMessage{RepBytes: [][]byte{[]byte("sham"), []byte("wow")}},
true,
},
{"extension vs. no extension", messageWithoutExtension, messageWithExtension1a, false},
{"extension vs. same extension", messageWithExtension1a, messageWithExtension1b, true},
{"extension vs. different extension", messageWithExtension1a, messageWithExtension2, false},
{"int32 extension vs. itself", messageWithInt32Extension1, messageWithInt32Extension1, true},
{"int32 extension vs. a different int32", messageWithInt32Extension1, messageWithInt32Extension2, false},
{
"message with group",
&pb.MyMessage{
Count: Int32(1),
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: Int32(5),
},
},
&pb.MyMessage{
Count: Int32(1),
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: Int32(5),
},
},
true,
},
{
"map same",
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
true,
},
{
"map different entry",
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb.MessageWithMap{NameMapping: map[int32]string{2: "Rob"}},
false,
},
{
"map different key only",
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb.MessageWithMap{NameMapping: map[int32]string{2: "Ken"}},
false,
},
{
"map different value only",
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Ken"}},
&pb.MessageWithMap{NameMapping: map[int32]string{1: "Rob"}},
false,
},
}
func TestEqual(t *testing.T) {
for _, tc := range EqualTests {
if res := Equal(tc.a, tc.b); res != tc.exp {
t.Errorf("%v: Equal(%v, %v) = %v, want %v", tc.desc, tc.a, tc.b, res, tc.exp)
}
}
}

400
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Types and routines for supporting protocol buffer extensions.
*/
import (
"errors"
"fmt"
"reflect"
"strconv"
"sync"
)
// ErrMissingExtension is the error returned by GetExtension if the named extension is not in the message.
var ErrMissingExtension = errors.New("proto: missing extension")
// ExtensionRange represents a range of message extensions for a protocol buffer.
// Used in code generated by the protocol compiler.
type ExtensionRange struct {
Start, End int32 // both inclusive
}
// extendableProto is an interface implemented by any protocol buffer that may be extended.
type extendableProto interface {
Message
ExtensionRangeArray() []ExtensionRange
ExtensionMap() map[int32]Extension
}
var extendableProtoType = reflect.TypeOf((*extendableProto)(nil)).Elem()
// ExtensionDesc represents an extension specification.
// Used in generated code from the protocol compiler.
type ExtensionDesc struct {
ExtendedType Message // nil pointer to the type that is being extended
ExtensionType interface{} // nil pointer to the extension type
Field int32 // field number
Name string // fully-qualified name of extension, for text formatting
Tag string // protobuf tag style
}
func (ed *ExtensionDesc) repeated() bool {
t := reflect.TypeOf(ed.ExtensionType)
return t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8
}
// Extension represents an extension in a message.
type Extension struct {
// When an extension is stored in a message using SetExtension
// only desc and value are set. When the message is marshaled
// enc will be set to the encoded form of the message.
//
// When a message is unmarshaled and contains extensions, each
// extension will have only enc set. When such an extension is
// accessed using GetExtension (or GetExtensions) desc and value
// will be set.
desc *ExtensionDesc
value interface{}
enc []byte
}
// SetRawExtension is for testing only.
func SetRawExtension(base extendableProto, id int32, b []byte) {
base.ExtensionMap()[id] = Extension{enc: b}
}
// isExtensionField returns true iff the given field number is in an extension range.
func isExtensionField(pb extendableProto, field int32) bool {
for _, er := range pb.ExtensionRangeArray() {
if er.Start <= field && field <= er.End {
return true
}
}
return false
}
// checkExtensionTypes checks that the given extension is valid for pb.
func checkExtensionTypes(pb extendableProto, extension *ExtensionDesc) error {
// Check the extended type.
if a, b := reflect.TypeOf(pb), reflect.TypeOf(extension.ExtendedType); a != b {
return errors.New("proto: bad extended type; " + b.String() + " does not extend " + a.String())
}
// Check the range.
if !isExtensionField(pb, extension.Field) {
return errors.New("proto: bad extension number; not in declared ranges")
}
return nil
}
// extPropKey is sufficient to uniquely identify an extension.
type extPropKey struct {
base reflect.Type
field int32
}
var extProp = struct {
sync.RWMutex
m map[extPropKey]*Properties
}{
m: make(map[extPropKey]*Properties),
}
func extensionProperties(ed *ExtensionDesc) *Properties {
key := extPropKey{base: reflect.TypeOf(ed.ExtendedType), field: ed.Field}
extProp.RLock()
if prop, ok := extProp.m[key]; ok {
extProp.RUnlock()
return prop
}
extProp.RUnlock()
extProp.Lock()
defer extProp.Unlock()
// Check again.
if prop, ok := extProp.m[key]; ok {
return prop
}
prop := new(Properties)
prop.Init(reflect.TypeOf(ed.ExtensionType), "unknown_name", ed.Tag, nil)
extProp.m[key] = prop
return prop
}
// encodeExtensionMap encodes any unmarshaled (unencoded) extensions in m.
func encodeExtensionMap(m map[int32]Extension) error {
for k, e := range m {
if e.value == nil || e.desc == nil {
// Extension is only in its encoded form.
continue
}
// We don't skip extensions that have an encoded form set,
// because the extension value may have been mutated after
// the last time this function was called.
et := reflect.TypeOf(e.desc.ExtensionType)
props := extensionProperties(e.desc)
p := NewBuffer(nil)
// If e.value has type T, the encoder expects a *struct{ X T }.
// Pass a *T with a zero field and hope it all works out.
x := reflect.New(et)
x.Elem().Set(reflect.ValueOf(e.value))
if err := props.enc(p, props, toStructPointer(x)); err != nil {
return err
}
e.enc = p.buf
m[k] = e
}
return nil
}
func sizeExtensionMap(m map[int32]Extension) (n int) {
for _, e := range m {
if e.value == nil || e.desc == nil {
// Extension is only in its encoded form.
n += len(e.enc)
continue
}
// We don't skip extensions that have an encoded form set,
// because the extension value may have been mutated after
// the last time this function was called.
et := reflect.TypeOf(e.desc.ExtensionType)
props := extensionProperties(e.desc)
// If e.value has type T, the encoder expects a *struct{ X T }.
// Pass a *T with a zero field and hope it all works out.
x := reflect.New(et)
x.Elem().Set(reflect.ValueOf(e.value))
n += props.size(props, toStructPointer(x))
}
return
}
// HasExtension returns whether the given extension is present in pb.
func HasExtension(pb extendableProto, extension *ExtensionDesc) bool {
// TODO: Check types, field numbers, etc.?
_, ok := pb.ExtensionMap()[extension.Field]
return ok
}
// ClearExtension removes the given extension from pb.
func ClearExtension(pb extendableProto, extension *ExtensionDesc) {
// TODO: Check types, field numbers, etc.?
delete(pb.ExtensionMap(), extension.Field)
}
// GetExtension parses and returns the given extension of pb.
// If the extension is not present and has no default value it returns ErrMissingExtension.
func GetExtension(pb extendableProto, extension *ExtensionDesc) (interface{}, error) {
if err := checkExtensionTypes(pb, extension); err != nil {
return nil, err
}
emap := pb.ExtensionMap()
e, ok := emap[extension.Field]
if !ok {
// defaultExtensionValue returns the default value or
// ErrMissingExtension if there is no default.
return defaultExtensionValue(extension)
}
if e.value != nil {
// Already decoded. Check the descriptor, though.
if e.desc != extension {
// This shouldn't happen. If it does, it means that
// GetExtension was called twice with two different
// descriptors with the same field number.
return nil, errors.New("proto: descriptor conflict")
}
return e.value, nil
}
v, err := decodeExtension(e.enc, extension)
if err != nil {
return nil, err
}
// Remember the decoded version and drop the encoded version.
// That way it is safe to mutate what we return.
e.value = v
e.desc = extension
e.enc = nil
emap[extension.Field] = e
return e.value, nil
}
// defaultExtensionValue returns the default value for extension.
// If no default for an extension is defined ErrMissingExtension is returned.
func defaultExtensionValue(extension *ExtensionDesc) (interface{}, error) {
t := reflect.TypeOf(extension.ExtensionType)
props := extensionProperties(extension)
sf, _, err := fieldDefault(t, props)
if err != nil {
return nil, err
}
if sf == nil || sf.value == nil {
// There is no default value.
return nil, ErrMissingExtension
}
if t.Kind() != reflect.Ptr {
// We do not need to return a Ptr, we can directly return sf.value.
return sf.value, nil
}
// We need to return an interface{} that is a pointer to sf.value.
value := reflect.New(t).Elem()
value.Set(reflect.New(value.Type().Elem()))
if sf.kind == reflect.Int32 {
// We may have an int32 or an enum, but the underlying data is int32.
// Since we can't set an int32 into a non int32 reflect.value directly
// set it as a int32.
value.Elem().SetInt(int64(sf.value.(int32)))
} else {
value.Elem().Set(reflect.ValueOf(sf.value))
}
return value.Interface(), nil
}
// decodeExtension decodes an extension encoded in b.
func decodeExtension(b []byte, extension *ExtensionDesc) (interface{}, error) {
o := NewBuffer(b)
t := reflect.TypeOf(extension.ExtensionType)
rep := extension.repeated()
props := extensionProperties(extension)
// t is a pointer to a struct, pointer to basic type or a slice.
// Allocate a "field" to store the pointer/slice itself; the
// pointer/slice will be stored here. We pass
// the address of this field to props.dec.
// This passes a zero field and a *t and lets props.dec
// interpret it as a *struct{ x t }.
value := reflect.New(t).Elem()
for {
// Discard wire type and field number varint. It isn't needed.
if _, err := o.DecodeVarint(); err != nil {
return nil, err
}
if err := props.dec(o, props, toStructPointer(value.Addr())); err != nil {
return nil, err
}
if !rep || o.index >= len(o.buf) {
break
}
}
return value.Interface(), nil
}
// GetExtensions returns a slice of the extensions present in pb that are also listed in es.
// The returned slice has the same length as es; missing extensions will appear as nil elements.
func GetExtensions(pb Message, es []*ExtensionDesc) (extensions []interface{}, err error) {
epb, ok := pb.(extendableProto)
if !ok {
err = errors.New("proto: not an extendable proto")
return
}
extensions = make([]interface{}, len(es))
for i, e := range es {
extensions[i], err = GetExtension(epb, e)
if err == ErrMissingExtension {
err = nil
}
if err != nil {
return
}
}
return
}
// SetExtension sets the specified extension of pb to the specified value.
func SetExtension(pb extendableProto, extension *ExtensionDesc, value interface{}) error {
if err := checkExtensionTypes(pb, extension); err != nil {
return err
}
typ := reflect.TypeOf(extension.ExtensionType)
if typ != reflect.TypeOf(value) {
return errors.New("proto: bad extension value type")
}
// nil extension values need to be caught early, because the
// encoder can't distinguish an ErrNil due to a nil extension
// from an ErrNil due to a missing field. Extensions are
// always optional, so the encoder would just swallow the error
// and drop all the extensions from the encoded message.
if reflect.ValueOf(value).IsNil() {
return fmt.Errorf("proto: SetExtension called with nil value of type %T", value)
}
pb.ExtensionMap()[extension.Field] = Extension{desc: extension, value: value}
return nil
}
// A global registry of extensions.
// The generated code will register the generated descriptors by calling RegisterExtension.
var extensionMaps = make(map[reflect.Type]map[int32]*ExtensionDesc)
// RegisterExtension is called from the generated code.
func RegisterExtension(desc *ExtensionDesc) {
st := reflect.TypeOf(desc.ExtendedType).Elem()
m := extensionMaps[st]
if m == nil {
m = make(map[int32]*ExtensionDesc)
extensionMaps[st] = m
}
if _, ok := m[desc.Field]; ok {
panic("proto: duplicate extension registered: " + st.String() + " " + strconv.Itoa(int(desc.Field)))
}
m[desc.Field] = desc
}
// RegisteredExtensions returns a map of the registered extensions of a
// protocol buffer struct, indexed by the extension number.
// The argument pb should be a nil pointer to the struct type.
func RegisteredExtensions(pb Message) map[int32]*ExtensionDesc {
return extensionMaps[reflect.TypeOf(pb).Elem()]
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2014 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"fmt"
"reflect"
"testing"
"github.com/golang/protobuf/proto"
pb "github.com/golang/protobuf/proto/testdata"
)
func TestGetExtensionsWithMissingExtensions(t *testing.T) {
msg := &pb.MyMessage{}
ext1 := &pb.Ext{}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext1); err != nil {
t.Fatalf("Could not set ext1: %s", ext1)
}
exts, err := proto.GetExtensions(msg, []*proto.ExtensionDesc{
pb.E_Ext_More,
pb.E_Ext_Text,
})
if err != nil {
t.Fatalf("GetExtensions() failed: %s", err)
}
if exts[0] != ext1 {
t.Errorf("ext1 not in returned extensions: %T %v", exts[0], exts[0])
}
if exts[1] != nil {
t.Errorf("ext2 in returned extensions: %T %v", exts[1], exts[1])
}
}
func TestGetExtensionStability(t *testing.T) {
check := func(m *pb.MyMessage) bool {
ext1, err := proto.GetExtension(m, pb.E_Ext_More)
if err != nil {
t.Fatalf("GetExtension() failed: %s", err)
}
ext2, err := proto.GetExtension(m, pb.E_Ext_More)
if err != nil {
t.Fatalf("GetExtension() failed: %s", err)
}
return ext1 == ext2
}
msg := &pb.MyMessage{Count: proto.Int32(4)}
ext0 := &pb.Ext{}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext0); err != nil {
t.Fatalf("Could not set ext1: %s", ext0)
}
if !check(msg) {
t.Errorf("GetExtension() not stable before marshaling")
}
bb, err := proto.Marshal(msg)
if err != nil {
t.Fatalf("Marshal() failed: %s", err)
}
msg1 := &pb.MyMessage{}
err = proto.Unmarshal(bb, msg1)
if err != nil {
t.Fatalf("Unmarshal() failed: %s", err)
}
if !check(msg1) {
t.Errorf("GetExtension() not stable after unmarshaling")
}
}
func TestGetExtensionDefaults(t *testing.T) {
var setFloat64 float64 = 1
var setFloat32 float32 = 2
var setInt32 int32 = 3
var setInt64 int64 = 4
var setUint32 uint32 = 5
var setUint64 uint64 = 6
var setBool = true
var setBool2 = false
var setString = "Goodnight string"
var setBytes = []byte("Goodnight bytes")
var setEnum = pb.DefaultsMessage_TWO
type testcase struct {
ext *proto.ExtensionDesc // Extension we are testing.
want interface{} // Expected value of extension, or nil (meaning that GetExtension will fail).
def interface{} // Expected value of extension after ClearExtension().
}
tests := []testcase{
{pb.E_NoDefaultDouble, setFloat64, nil},
{pb.E_NoDefaultFloat, setFloat32, nil},
{pb.E_NoDefaultInt32, setInt32, nil},
{pb.E_NoDefaultInt64, setInt64, nil},
{pb.E_NoDefaultUint32, setUint32, nil},
{pb.E_NoDefaultUint64, setUint64, nil},
{pb.E_NoDefaultSint32, setInt32, nil},
{pb.E_NoDefaultSint64, setInt64, nil},
{pb.E_NoDefaultFixed32, setUint32, nil},
{pb.E_NoDefaultFixed64, setUint64, nil},
{pb.E_NoDefaultSfixed32, setInt32, nil},
{pb.E_NoDefaultSfixed64, setInt64, nil},
{pb.E_NoDefaultBool, setBool, nil},
{pb.E_NoDefaultBool, setBool2, nil},
{pb.E_NoDefaultString, setString, nil},
{pb.E_NoDefaultBytes, setBytes, nil},
{pb.E_NoDefaultEnum, setEnum, nil},
{pb.E_DefaultDouble, setFloat64, float64(3.1415)},
{pb.E_DefaultFloat, setFloat32, float32(3.14)},
{pb.E_DefaultInt32, setInt32, int32(42)},
{pb.E_DefaultInt64, setInt64, int64(43)},
{pb.E_DefaultUint32, setUint32, uint32(44)},
{pb.E_DefaultUint64, setUint64, uint64(45)},
{pb.E_DefaultSint32, setInt32, int32(46)},
{pb.E_DefaultSint64, setInt64, int64(47)},
{pb.E_DefaultFixed32, setUint32, uint32(48)},
{pb.E_DefaultFixed64, setUint64, uint64(49)},
{pb.E_DefaultSfixed32, setInt32, int32(50)},
{pb.E_DefaultSfixed64, setInt64, int64(51)},
{pb.E_DefaultBool, setBool, true},
{pb.E_DefaultBool, setBool2, true},
{pb.E_DefaultString, setString, "Hello, string"},
{pb.E_DefaultBytes, setBytes, []byte("Hello, bytes")},
{pb.E_DefaultEnum, setEnum, pb.DefaultsMessage_ONE},
}
checkVal := func(test testcase, msg *pb.DefaultsMessage, valWant interface{}) error {
val, err := proto.GetExtension(msg, test.ext)
if err != nil {
if valWant != nil {
return fmt.Errorf("GetExtension(): %s", err)
}
if want := proto.ErrMissingExtension; err != want {
return fmt.Errorf("Unexpected error: got %v, want %v", err, want)
}
return nil
}
// All proto2 extension values are either a pointer to a value or a slice of values.
ty := reflect.TypeOf(val)
tyWant := reflect.TypeOf(test.ext.ExtensionType)
if got, want := ty, tyWant; got != want {
return fmt.Errorf("unexpected reflect.TypeOf(): got %v want %v", got, want)
}
tye := ty.Elem()
tyeWant := tyWant.Elem()
if got, want := tye, tyeWant; got != want {
return fmt.Errorf("unexpected reflect.TypeOf().Elem(): got %v want %v", got, want)
}
// Check the name of the type of the value.
// If it is an enum it will be type int32 with the name of the enum.
if got, want := tye.Name(), tye.Name(); got != want {
return fmt.Errorf("unexpected reflect.TypeOf().Elem().Name(): got %v want %v", got, want)
}
// Check that value is what we expect.
// If we have a pointer in val, get the value it points to.
valExp := val
if ty.Kind() == reflect.Ptr {
valExp = reflect.ValueOf(val).Elem().Interface()
}
if got, want := valExp, valWant; !reflect.DeepEqual(got, want) {
return fmt.Errorf("unexpected reflect.DeepEqual(): got %v want %v", got, want)
}
return nil
}
setTo := func(test testcase) interface{} {
setTo := reflect.ValueOf(test.want)
if typ := reflect.TypeOf(test.ext.ExtensionType); typ.Kind() == reflect.Ptr {
setTo = reflect.New(typ).Elem()
setTo.Set(reflect.New(setTo.Type().Elem()))
setTo.Elem().Set(reflect.ValueOf(test.want))
}
return setTo.Interface()
}
for _, test := range tests {
msg := &pb.DefaultsMessage{}
name := test.ext.Name
// Check the initial value.
if err := checkVal(test, msg, test.def); err != nil {
t.Errorf("%s: %v", name, err)
}
// Set the per-type value and check value.
name = fmt.Sprintf("%s (set to %T %v)", name, test.want, test.want)
if err := proto.SetExtension(msg, test.ext, setTo(test)); err != nil {
t.Errorf("%s: SetExtension(): %v", name, err)
continue
}
if err := checkVal(test, msg, test.want); err != nil {
t.Errorf("%s: %v", name, err)
continue
}
// Set and check the value.
name += " (cleared)"
proto.ClearExtension(msg, test.ext)
if err := checkVal(test, msg, test.def); err != nil {
t.Errorf("%s: %v", name, err)
}
}
}
func TestExtensionsRoundTrip(t *testing.T) {
msg := &pb.MyMessage{}
ext1 := &pb.Ext{
Data: proto.String("hi"),
}
ext2 := &pb.Ext{
Data: proto.String("there"),
}
exists := proto.HasExtension(msg, pb.E_Ext_More)
if exists {
t.Error("Extension More present unexpectedly")
}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext1); err != nil {
t.Error(err)
}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext2); err != nil {
t.Error(err)
}
e, err := proto.GetExtension(msg, pb.E_Ext_More)
if err != nil {
t.Error(err)
}
x, ok := e.(*pb.Ext)
if !ok {
t.Errorf("e has type %T, expected testdata.Ext", e)
} else if *x.Data != "there" {
t.Errorf("SetExtension failed to overwrite, got %+v, not 'there'", x)
}
proto.ClearExtension(msg, pb.E_Ext_More)
if _, err = proto.GetExtension(msg, pb.E_Ext_More); err != proto.ErrMissingExtension {
t.Errorf("got %v, expected ErrMissingExtension", e)
}
if _, err := proto.GetExtension(msg, pb.E_X215); err == nil {
t.Error("expected bad extension error, got nil")
}
if err := proto.SetExtension(msg, pb.E_X215, 12); err == nil {
t.Error("expected extension err")
}
if err := proto.SetExtension(msg, pb.E_Ext_More, 12); err == nil {
t.Error("expected some sort of type mismatch error, got nil")
}
}
func TestNilExtension(t *testing.T) {
msg := &pb.MyMessage{
Count: proto.Int32(1),
}
if err := proto.SetExtension(msg, pb.E_Ext_Text, proto.String("hello")); err != nil {
t.Fatal(err)
}
if err := proto.SetExtension(msg, pb.E_Ext_More, (*pb.Ext)(nil)); err == nil {
t.Error("expected SetExtension to fail due to a nil extension")
} else if want := "proto: SetExtension called with nil value of type *testdata.Ext"; err.Error() != want {
t.Errorf("expected error %v, got %v", want, err)
}
// Note: if the behavior of Marshal is ever changed to ignore nil extensions, update
// this test to verify that E_Ext_Text is properly propagated through marshal->unmarshal.
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/*
Package proto converts data structures to and from the wire format of
protocol buffers. It works in concert with the Go source code generated
for .proto files by the protocol compiler.
A summary of the properties of the protocol buffer interface
for a protocol buffer variable v:
- Names are turned from camel_case to CamelCase for export.
- There are no methods on v to set fields; just treat
them as structure fields.
- There are getters that return a field's value if set,
and return the field's default value if unset.
The getters work even if the receiver is a nil message.
- The zero value for a struct is its correct initialization state.
All desired fields must be set before marshaling.
- A Reset() method will restore a protobuf struct to its zero state.
- Non-repeated fields are pointers to the values; nil means unset.
That is, optional or required field int32 f becomes F *int32.
- Repeated fields are slices.
- Helper functions are available to aid the setting of fields.
msg.Foo = proto.String("hello") // set field
- Constants are defined to hold the default values of all fields that
have them. They have the form Default_StructName_FieldName.
Because the getter methods handle defaulted values,
direct use of these constants should be rare.
- Enums are given type names and maps from names to values.
Enum values are prefixed by the enclosing message's name, or by the
enum's type name if it is a top-level enum. Enum types have a String
method, and a Enum method to assist in message construction.
- Nested messages, groups and enums have type names prefixed with the name of
the surrounding message type.
- Extensions are given descriptor names that start with E_,
followed by an underscore-delimited list of the nested messages
that contain it (if any) followed by the CamelCased name of the
extension field itself. HasExtension, ClearExtension, GetExtension
and SetExtension are functions for manipulating extensions.
- Marshal and Unmarshal are functions to encode and decode the wire format.
The simplest way to describe this is to see an example.
Given file test.proto, containing
package example;
enum FOO { X = 17; }
message Test {
required string label = 1;
optional int32 type = 2 [default=77];
repeated int64 reps = 3;
optional group OptionalGroup = 4 {
required string RequiredField = 5;
}
}
The resulting file, test.pb.go, is:
package example
import proto "github.com/golang/protobuf/proto"
import math "math"
type FOO int32
const (
FOO_X FOO = 17
)
var FOO_name = map[int32]string{
17: "X",
}
var FOO_value = map[string]int32{
"X": 17,
}
func (x FOO) Enum() *FOO {
p := new(FOO)
*p = x
return p
}
func (x FOO) String() string {
return proto.EnumName(FOO_name, int32(x))
}
func (x *FOO) UnmarshalJSON(data []byte) error {
value, err := proto.UnmarshalJSONEnum(FOO_value, data)
if err != nil {
return err
}
*x = FOO(value)
return nil
}
type Test struct {
Label *string `protobuf:"bytes,1,req,name=label" json:"label,omitempty"`
Type *int32 `protobuf:"varint,2,opt,name=type,def=77" json:"type,omitempty"`
Reps []int64 `protobuf:"varint,3,rep,name=reps" json:"reps,omitempty"`
Optionalgroup *Test_OptionalGroup `protobuf:"group,4,opt,name=OptionalGroup" json:"optionalgroup,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (m *Test) Reset() { *m = Test{} }
func (m *Test) String() string { return proto.CompactTextString(m) }
func (*Test) ProtoMessage() {}
const Default_Test_Type int32 = 77
func (m *Test) GetLabel() string {
if m != nil && m.Label != nil {
return *m.Label
}
return ""
}
func (m *Test) GetType() int32 {
if m != nil && m.Type != nil {
return *m.Type
}
return Default_Test_Type
}
func (m *Test) GetOptionalgroup() *Test_OptionalGroup {
if m != nil {
return m.Optionalgroup
}
return nil
}
type Test_OptionalGroup struct {
RequiredField *string `protobuf:"bytes,5,req" json:"RequiredField,omitempty"`
}
func (m *Test_OptionalGroup) Reset() { *m = Test_OptionalGroup{} }
func (m *Test_OptionalGroup) String() string { return proto.CompactTextString(m) }
func (m *Test_OptionalGroup) GetRequiredField() string {
if m != nil && m.RequiredField != nil {
return *m.RequiredField
}
return ""
}
func init() {
proto.RegisterEnum("example.FOO", FOO_name, FOO_value)
}
To create and play with a Test object:
package main
import (
"log"
"github.com/golang/protobuf/proto"
pb "./example.pb"
)
func main() {
test := &pb.Test{
Label: proto.String("hello"),
Type: proto.Int32(17),
Optionalgroup: &pb.Test_OptionalGroup{
RequiredField: proto.String("good bye"),
},
}
data, err := proto.Marshal(test)
if err != nil {
log.Fatal("marshaling error: ", err)
}
newTest := &pb.Test{}
err = proto.Unmarshal(data, newTest)
if err != nil {
log.Fatal("unmarshaling error: ", err)
}
// Now test and newTest contain the same data.
if test.GetLabel() != newTest.GetLabel() {
log.Fatalf("data mismatch %q != %q", test.GetLabel(), newTest.GetLabel())
}
// etc.
}
*/
package proto
import (
"encoding/json"
"fmt"
"log"
"reflect"
"strconv"
"sync"
)
// Message is implemented by generated protocol buffer messages.
type Message interface {
Reset()
String() string
ProtoMessage()
}
// Stats records allocation details about the protocol buffer encoders
// and decoders. Useful for tuning the library itself.
type Stats struct {
Emalloc uint64 // mallocs in encode
Dmalloc uint64 // mallocs in decode
Encode uint64 // number of encodes
Decode uint64 // number of decodes
Chit uint64 // number of cache hits
Cmiss uint64 // number of cache misses
Size uint64 // number of sizes
}
// Set to true to enable stats collection.
const collectStats = false
var stats Stats
// GetStats returns a copy of the global Stats structure.
func GetStats() Stats { return stats }
// A Buffer is a buffer manager for marshaling and unmarshaling
// protocol buffers. It may be reused between invocations to
// reduce memory usage. It is not necessary to use a Buffer;
// the global functions Marshal and Unmarshal create a
// temporary Buffer and are fine for most applications.
type Buffer struct {
buf []byte // encode/decode byte stream
index int // write point
// pools of basic types to amortize allocation.
bools []bool
uint32s []uint32
uint64s []uint64
// extra pools, only used with pointer_reflect.go
int32s []int32
int64s []int64
float32s []float32
float64s []float64
}
// NewBuffer allocates a new Buffer and initializes its internal data to
// the contents of the argument slice.
func NewBuffer(e []byte) *Buffer {
return &Buffer{buf: e}
}
// Reset resets the Buffer, ready for marshaling a new protocol buffer.
func (p *Buffer) Reset() {
p.buf = p.buf[0:0] // for reading/writing
p.index = 0 // for reading
}
// SetBuf replaces the internal buffer with the slice,
// ready for unmarshaling the contents of the slice.
func (p *Buffer) SetBuf(s []byte) {
p.buf = s
p.index = 0
}
// Bytes returns the contents of the Buffer.
func (p *Buffer) Bytes() []byte { return p.buf }
/*
* Helper routines for simplifying the creation of optional fields of basic type.
*/
// Bool is a helper routine that allocates a new bool value
// to store v and returns a pointer to it.
func Bool(v bool) *bool {
return &v
}
// Int32 is a helper routine that allocates a new int32 value
// to store v and returns a pointer to it.
func Int32(v int32) *int32 {
return &v
}
// Int is a helper routine that allocates a new int32 value
// to store v and returns a pointer to it, but unlike Int32
// its argument value is an int.
func Int(v int) *int32 {
p := new(int32)
*p = int32(v)
return p
}
// Int64 is a helper routine that allocates a new int64 value
// to store v and returns a pointer to it.
func Int64(v int64) *int64 {
return &v
}
// Float32 is a helper routine that allocates a new float32 value
// to store v and returns a pointer to it.
func Float32(v float32) *float32 {
return &v
}
// Float64 is a helper routine that allocates a new float64 value
// to store v and returns a pointer to it.
func Float64(v float64) *float64 {
return &v
}
// Uint32 is a helper routine that allocates a new uint32 value
// to store v and returns a pointer to it.
func Uint32(v uint32) *uint32 {
return &v
}
// Uint64 is a helper routine that allocates a new uint64 value
// to store v and returns a pointer to it.
func Uint64(v uint64) *uint64 {
return &v
}
// String is a helper routine that allocates a new string value
// to store v and returns a pointer to it.
func String(v string) *string {
return &v
}
// EnumName is a helper function to simplify printing protocol buffer enums
// by name. Given an enum map and a value, it returns a useful string.
func EnumName(m map[int32]string, v int32) string {
s, ok := m[v]
if ok {
return s
}
return strconv.Itoa(int(v))
}
// UnmarshalJSONEnum is a helper function to simplify recovering enum int values
// from their JSON-encoded representation. Given a map from the enum's symbolic
// names to its int values, and a byte buffer containing the JSON-encoded
// value, it returns an int32 that can be cast to the enum type by the caller.
//
// The function can deal with both JSON representations, numeric and symbolic.
func UnmarshalJSONEnum(m map[string]int32, data []byte, enumName string) (int32, error) {
if data[0] == '"' {
// New style: enums are strings.
var repr string
if err := json.Unmarshal(data, &repr); err != nil {
return -1, err
}
val, ok := m[repr]
if !ok {
return 0, fmt.Errorf("unrecognized enum %s value %q", enumName, repr)
}
return val, nil
}
// Old style: enums are ints.
var val int32
if err := json.Unmarshal(data, &val); err != nil {
return 0, fmt.Errorf("cannot unmarshal %#q into enum %s", data, enumName)
}
return val, nil
}
// DebugPrint dumps the encoded data in b in a debugging format with a header
// including the string s. Used in testing but made available for general debugging.
func (p *Buffer) DebugPrint(s string, b []byte) {
var u uint64
obuf := p.buf
index := p.index
p.buf = b
p.index = 0
depth := 0
fmt.Printf("\n--- %s ---\n", s)
out:
for {
for i := 0; i < depth; i++ {
fmt.Print(" ")
}
index := p.index
if index == len(p.buf) {
break
}
op, err := p.DecodeVarint()
if err != nil {
fmt.Printf("%3d: fetching op err %v\n", index, err)
break out
}
tag := op >> 3
wire := op & 7
switch wire {
default:
fmt.Printf("%3d: t=%3d unknown wire=%d\n",
index, tag, wire)
break out
case WireBytes:
var r []byte
r, err = p.DecodeRawBytes(false)
if err != nil {
break out
}
fmt.Printf("%3d: t=%3d bytes [%d]", index, tag, len(r))
if len(r) <= 6 {
for i := 0; i < len(r); i++ {
fmt.Printf(" %.2x", r[i])
}
} else {
for i := 0; i < 3; i++ {
fmt.Printf(" %.2x", r[i])
}
fmt.Printf(" ..")
for i := len(r) - 3; i < len(r); i++ {
fmt.Printf(" %.2x", r[i])
}
}
fmt.Printf("\n")
case WireFixed32:
u, err = p.DecodeFixed32()
if err != nil {
fmt.Printf("%3d: t=%3d fix32 err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d fix32 %d\n", index, tag, u)
case WireFixed64:
u, err = p.DecodeFixed64()
if err != nil {
fmt.Printf("%3d: t=%3d fix64 err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d fix64 %d\n", index, tag, u)
break
case WireVarint:
u, err = p.DecodeVarint()
if err != nil {
fmt.Printf("%3d: t=%3d varint err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d varint %d\n", index, tag, u)
case WireStartGroup:
if err != nil {
fmt.Printf("%3d: t=%3d start err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d start\n", index, tag)
depth++
case WireEndGroup:
depth--
if err != nil {
fmt.Printf("%3d: t=%3d end err %v\n", index, tag, err)
break out
}
fmt.Printf("%3d: t=%3d end\n", index, tag)
}
}
if depth != 0 {
fmt.Printf("%3d: start-end not balanced %d\n", p.index, depth)
}
fmt.Printf("\n")
p.buf = obuf
p.index = index
}
// SetDefaults sets unset protocol buffer fields to their default values.
// It only modifies fields that are both unset and have defined defaults.
// It recursively sets default values in any non-nil sub-messages.
func SetDefaults(pb Message) {
setDefaults(reflect.ValueOf(pb), true, false)
}
// v is a pointer to a struct.
func setDefaults(v reflect.Value, recur, zeros bool) {
v = v.Elem()
defaultMu.RLock()
dm, ok := defaults[v.Type()]
defaultMu.RUnlock()
if !ok {
dm = buildDefaultMessage(v.Type())
defaultMu.Lock()
defaults[v.Type()] = dm
defaultMu.Unlock()
}
for _, sf := range dm.scalars {
f := v.Field(sf.index)
if !f.IsNil() {
// field already set
continue
}
dv := sf.value
if dv == nil && !zeros {
// no explicit default, and don't want to set zeros
continue
}
fptr := f.Addr().Interface() // **T
// TODO: Consider batching the allocations we do here.
switch sf.kind {
case reflect.Bool:
b := new(bool)
if dv != nil {
*b = dv.(bool)
}
*(fptr.(**bool)) = b
case reflect.Float32:
f := new(float32)
if dv != nil {
*f = dv.(float32)
}
*(fptr.(**float32)) = f
case reflect.Float64:
f := new(float64)
if dv != nil {
*f = dv.(float64)
}
*(fptr.(**float64)) = f
case reflect.Int32:
// might be an enum
if ft := f.Type(); ft != int32PtrType {
// enum
f.Set(reflect.New(ft.Elem()))
if dv != nil {
f.Elem().SetInt(int64(dv.(int32)))
}
} else {
// int32 field
i := new(int32)
if dv != nil {
*i = dv.(int32)
}
*(fptr.(**int32)) = i
}
case reflect.Int64:
i := new(int64)
if dv != nil {
*i = dv.(int64)
}
*(fptr.(**int64)) = i
case reflect.String:
s := new(string)
if dv != nil {
*s = dv.(string)
}
*(fptr.(**string)) = s
case reflect.Uint8:
// exceptional case: []byte
var b []byte
if dv != nil {
db := dv.([]byte)
b = make([]byte, len(db))
copy(b, db)
} else {
b = []byte{}
}
*(fptr.(*[]byte)) = b
case reflect.Uint32:
u := new(uint32)
if dv != nil {
*u = dv.(uint32)
}
*(fptr.(**uint32)) = u
case reflect.Uint64:
u := new(uint64)
if dv != nil {
*u = dv.(uint64)
}
*(fptr.(**uint64)) = u
default:
log.Printf("proto: can't set default for field %v (sf.kind=%v)", f, sf.kind)
}
}
for _, ni := range dm.nested {
f := v.Field(ni)
// f is *T or []*T or map[T]*T
switch f.Kind() {
case reflect.Ptr:
if f.IsNil() {
continue
}
setDefaults(f, recur, zeros)
case reflect.Slice:
for i := 0; i < f.Len(); i++ {
e := f.Index(i)
if e.IsNil() {
continue
}
setDefaults(e, recur, zeros)
}
case reflect.Map:
for _, k := range f.MapKeys() {
e := f.MapIndex(k)
if e.IsNil() {
continue
}
setDefaults(e, recur, zeros)
}
}
}
}
var (
// defaults maps a protocol buffer struct type to a slice of the fields,
// with its scalar fields set to their proto-declared non-zero default values.
defaultMu sync.RWMutex
defaults = make(map[reflect.Type]defaultMessage)
int32PtrType = reflect.TypeOf((*int32)(nil))
)
// defaultMessage represents information about the default values of a message.
type defaultMessage struct {
scalars []scalarField
nested []int // struct field index of nested messages
}
type scalarField struct {
index int // struct field index
kind reflect.Kind // element type (the T in *T or []T)
value interface{} // the proto-declared default value, or nil
}
// t is a struct type.
func buildDefaultMessage(t reflect.Type) (dm defaultMessage) {
sprop := GetProperties(t)
for _, prop := range sprop.Prop {
fi, ok := sprop.decoderTags.get(prop.Tag)
if !ok {
// XXX_unrecognized
continue
}
ft := t.Field(fi).Type
sf, nested, err := fieldDefault(ft, prop)
switch {
case err != nil:
log.Print(err)
case nested:
dm.nested = append(dm.nested, fi)
case sf != nil:
sf.index = fi
dm.scalars = append(dm.scalars, *sf)
}
}
return dm
}
// fieldDefault returns the scalarField for field type ft.
// sf will be nil if the field can not have a default.
// nestedMessage will be true if this is a nested message.
// Note that sf.index is not set on return.
func fieldDefault(ft reflect.Type, prop *Properties) (sf *scalarField, nestedMessage bool, err error) {
var canHaveDefault bool
switch ft.Kind() {
case reflect.Ptr:
if ft.Elem().Kind() == reflect.Struct {
nestedMessage = true
} else {
canHaveDefault = true // proto2 scalar field
}
case reflect.Slice:
switch ft.Elem().Kind() {
case reflect.Ptr:
nestedMessage = true // repeated message
case reflect.Uint8:
canHaveDefault = true // bytes field
}
case reflect.Map:
if ft.Elem().Kind() == reflect.Ptr {
nestedMessage = true // map with message values
}
}
if !canHaveDefault {
if nestedMessage {
return nil, true, nil
}
return nil, false, nil
}
// We now know that ft is a pointer or slice.
sf = &scalarField{kind: ft.Elem().Kind()}
// scalar fields without defaults
if !prop.HasDefault {
return sf, false, nil
}
// a scalar field: either *T or []byte
switch ft.Elem().Kind() {
case reflect.Bool:
x, err := strconv.ParseBool(prop.Default)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default bool %q: %v", prop.Default, err)
}
sf.value = x
case reflect.Float32:
x, err := strconv.ParseFloat(prop.Default, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default float32 %q: %v", prop.Default, err)
}
sf.value = float32(x)
case reflect.Float64:
x, err := strconv.ParseFloat(prop.Default, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default float64 %q: %v", prop.Default, err)
}
sf.value = x
case reflect.Int32:
x, err := strconv.ParseInt(prop.Default, 10, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default int32 %q: %v", prop.Default, err)
}
sf.value = int32(x)
case reflect.Int64:
x, err := strconv.ParseInt(prop.Default, 10, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default int64 %q: %v", prop.Default, err)
}
sf.value = x
case reflect.String:
sf.value = prop.Default
case reflect.Uint8:
// []byte (not *uint8)
sf.value = []byte(prop.Default)
case reflect.Uint32:
x, err := strconv.ParseUint(prop.Default, 10, 32)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default uint32 %q: %v", prop.Default, err)
}
sf.value = uint32(x)
case reflect.Uint64:
x, err := strconv.ParseUint(prop.Default, 10, 64)
if err != nil {
return nil, false, fmt.Errorf("proto: bad default uint64 %q: %v", prop.Default, err)
}
sf.value = x
default:
return nil, false, fmt.Errorf("proto: unhandled def kind %v", ft.Elem().Kind())
}
return sf, false, nil
}
// Map fields may have key types of non-float scalars, strings and enums.
// The easiest way to sort them in some deterministic order is to use fmt.
// If this turns out to be inefficient we can always consider other options,
// such as doing a Schwartzian transform.
type mapKeys []reflect.Value
func (s mapKeys) Len() int { return len(s) }
func (s mapKeys) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
func (s mapKeys) Less(i, j int) bool {
return fmt.Sprint(s[i].Interface()) < fmt.Sprint(s[j].Interface())
}
// isProto3Zero reports whether v is a zero proto3 value.
func isProto3Zero(v reflect.Value) bool {
switch v.Kind() {
case reflect.Bool:
return !v.Bool()
case reflect.Int32, reflect.Int64:
return v.Int() == 0
case reflect.Uint32, reflect.Uint64:
return v.Uint() == 0
case reflect.Float32, reflect.Float64:
return v.Float() == 0
case reflect.String:
return v.String() == ""
}
return false
}

287
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@ -0,0 +1,287 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Support for message sets.
*/
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"reflect"
"sort"
)
// ErrNoMessageTypeId occurs when a protocol buffer does not have a message type ID.
// A message type ID is required for storing a protocol buffer in a message set.
var ErrNoMessageTypeId = errors.New("proto does not have a message type ID")
// The first two types (_MessageSet_Item and MessageSet)
// model what the protocol compiler produces for the following protocol message:
// message MessageSet {
// repeated group Item = 1 {
// required int32 type_id = 2;
// required string message = 3;
// };
// }
// That is the MessageSet wire format. We can't use a proto to generate these
// because that would introduce a circular dependency between it and this package.
//
// When a proto1 proto has a field that looks like:
// optional message<MessageSet> info = 3;
// the protocol compiler produces a field in the generated struct that looks like:
// Info *_proto_.MessageSet `protobuf:"bytes,3,opt,name=info"`
// The package is automatically inserted so there is no need for that proto file to
// import this package.
type _MessageSet_Item struct {
TypeId *int32 `protobuf:"varint,2,req,name=type_id"`
Message []byte `protobuf:"bytes,3,req,name=message"`
}
type MessageSet struct {
Item []*_MessageSet_Item `protobuf:"group,1,rep"`
XXX_unrecognized []byte
// TODO: caching?
}
// Make sure MessageSet is a Message.
var _ Message = (*MessageSet)(nil)
// messageTypeIder is an interface satisfied by a protocol buffer type
// that may be stored in a MessageSet.
type messageTypeIder interface {
MessageTypeId() int32
}
func (ms *MessageSet) find(pb Message) *_MessageSet_Item {
mti, ok := pb.(messageTypeIder)
if !ok {
return nil
}
id := mti.MessageTypeId()
for _, item := range ms.Item {
if *item.TypeId == id {
return item
}
}
return nil
}
func (ms *MessageSet) Has(pb Message) bool {
if ms.find(pb) != nil {
return true
}
return false
}
func (ms *MessageSet) Unmarshal(pb Message) error {
if item := ms.find(pb); item != nil {
return Unmarshal(item.Message, pb)
}
if _, ok := pb.(messageTypeIder); !ok {
return ErrNoMessageTypeId
}
return nil // TODO: return error instead?
}
func (ms *MessageSet) Marshal(pb Message) error {
msg, err := Marshal(pb)
if err != nil {
return err
}
if item := ms.find(pb); item != nil {
// reuse existing item
item.Message = msg
return nil
}
mti, ok := pb.(messageTypeIder)
if !ok {
return ErrNoMessageTypeId
}
mtid := mti.MessageTypeId()
ms.Item = append(ms.Item, &_MessageSet_Item{
TypeId: &mtid,
Message: msg,
})
return nil
}
func (ms *MessageSet) Reset() { *ms = MessageSet{} }
func (ms *MessageSet) String() string { return CompactTextString(ms) }
func (*MessageSet) ProtoMessage() {}
// Support for the message_set_wire_format message option.
func skipVarint(buf []byte) []byte {
i := 0
for ; buf[i]&0x80 != 0; i++ {
}
return buf[i+1:]
}
// MarshalMessageSet encodes the extension map represented by m in the message set wire format.
// It is called by generated Marshal methods on protocol buffer messages with the message_set_wire_format option.
func MarshalMessageSet(m map[int32]Extension) ([]byte, error) {
if err := encodeExtensionMap(m); err != nil {
return nil, err
}
// Sort extension IDs to provide a deterministic encoding.
// See also enc_map in encode.go.
ids := make([]int, 0, len(m))
for id := range m {
ids = append(ids, int(id))
}
sort.Ints(ids)
ms := &MessageSet{Item: make([]*_MessageSet_Item, 0, len(m))}
for _, id := range ids {
e := m[int32(id)]
// Remove the wire type and field number varint, as well as the length varint.
msg := skipVarint(skipVarint(e.enc))
ms.Item = append(ms.Item, &_MessageSet_Item{
TypeId: Int32(int32(id)),
Message: msg,
})
}
return Marshal(ms)
}
// UnmarshalMessageSet decodes the extension map encoded in buf in the message set wire format.
// It is called by generated Unmarshal methods on protocol buffer messages with the message_set_wire_format option.
func UnmarshalMessageSet(buf []byte, m map[int32]Extension) error {
ms := new(MessageSet)
if err := Unmarshal(buf, ms); err != nil {
return err
}
for _, item := range ms.Item {
id := *item.TypeId
msg := item.Message
// Restore wire type and field number varint, plus length varint.
// Be careful to preserve duplicate items.
b := EncodeVarint(uint64(id)<<3 | WireBytes)
if ext, ok := m[id]; ok {
// Existing data; rip off the tag and length varint
// so we join the new data correctly.
// We can assume that ext.enc is set because we are unmarshaling.
o := ext.enc[len(b):] // skip wire type and field number
_, n := DecodeVarint(o) // calculate length of length varint
o = o[n:] // skip length varint
msg = append(o, msg...) // join old data and new data
}
b = append(b, EncodeVarint(uint64(len(msg)))...)
b = append(b, msg...)
m[id] = Extension{enc: b}
}
return nil
}
// MarshalMessageSetJSON encodes the extension map represented by m in JSON format.
// It is called by generated MarshalJSON methods on protocol buffer messages with the message_set_wire_format option.
func MarshalMessageSetJSON(m map[int32]Extension) ([]byte, error) {
var b bytes.Buffer
b.WriteByte('{')
// Process the map in key order for deterministic output.
ids := make([]int32, 0, len(m))
for id := range m {
ids = append(ids, id)
}
sort.Sort(int32Slice(ids)) // int32Slice defined in text.go
for i, id := range ids {
ext := m[id]
if i > 0 {
b.WriteByte(',')
}
msd, ok := messageSetMap[id]
if !ok {
// Unknown type; we can't render it, so skip it.
continue
}
fmt.Fprintf(&b, `"[%s]":`, msd.name)
x := ext.value
if x == nil {
x = reflect.New(msd.t.Elem()).Interface()
if err := Unmarshal(ext.enc, x.(Message)); err != nil {
return nil, err
}
}
d, err := json.Marshal(x)
if err != nil {
return nil, err
}
b.Write(d)
}
b.WriteByte('}')
return b.Bytes(), nil
}
// UnmarshalMessageSetJSON decodes the extension map encoded in buf in JSON format.
// It is called by generated UnmarshalJSON methods on protocol buffer messages with the message_set_wire_format option.
func UnmarshalMessageSetJSON(buf []byte, m map[int32]Extension) error {
// Common-case fast path.
if len(buf) == 0 || bytes.Equal(buf, []byte("{}")) {
return nil
}
// This is fairly tricky, and it's not clear that it is needed.
return errors.New("TODO: UnmarshalMessageSetJSON not yet implemented")
}
// A global registry of types that can be used in a MessageSet.
var messageSetMap = make(map[int32]messageSetDesc)
type messageSetDesc struct {
t reflect.Type // pointer to struct
name string
}
// RegisterMessageSetType is called from the generated code.
func RegisterMessageSetType(m Message, fieldNum int32, name string) {
messageSetMap[fieldNum] = messageSetDesc{
t: reflect.TypeOf(m),
name: name,
}
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2014 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
import (
"bytes"
"testing"
)
func TestUnmarshalMessageSetWithDuplicate(t *testing.T) {
// Check that a repeated message set entry will be concatenated.
in := &MessageSet{
Item: []*_MessageSet_Item{
{TypeId: Int32(12345), Message: []byte("hoo")},
{TypeId: Int32(12345), Message: []byte("hah")},
},
}
b, err := Marshal(in)
if err != nil {
t.Fatalf("Marshal: %v", err)
}
t.Logf("Marshaled bytes: %q", b)
m := make(map[int32]Extension)
if err := UnmarshalMessageSet(b, m); err != nil {
t.Fatalf("UnmarshalMessageSet: %v", err)
}
ext, ok := m[12345]
if !ok {
t.Fatalf("Didn't retrieve extension 12345; map is %v", m)
}
// Skip wire type/field number and length varints.
got := skipVarint(skipVarint(ext.enc))
if want := []byte("hoohah"); !bytes.Equal(got, want) {
t.Errorf("Combined extension is %q, want %q", got, want)
}
}

479
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// +build appengine
// This file contains an implementation of proto field accesses using package reflect.
// It is slower than the code in pointer_unsafe.go but it avoids package unsafe and can
// be used on App Engine.
package proto
import (
"math"
"reflect"
)
// A structPointer is a pointer to a struct.
type structPointer struct {
v reflect.Value
}
// toStructPointer returns a structPointer equivalent to the given reflect value.
// The reflect value must itself be a pointer to a struct.
func toStructPointer(v reflect.Value) structPointer {
return structPointer{v}
}
// IsNil reports whether p is nil.
func structPointer_IsNil(p structPointer) bool {
return p.v.IsNil()
}
// Interface returns the struct pointer as an interface value.
func structPointer_Interface(p structPointer, _ reflect.Type) interface{} {
return p.v.Interface()
}
// A field identifies a field in a struct, accessible from a structPointer.
// In this implementation, a field is identified by the sequence of field indices
// passed to reflect's FieldByIndex.
type field []int
// toField returns a field equivalent to the given reflect field.
func toField(f *reflect.StructField) field {
return f.Index
}
// invalidField is an invalid field identifier.
var invalidField = field(nil)
// IsValid reports whether the field identifier is valid.
func (f field) IsValid() bool { return f != nil }
// field returns the given field in the struct as a reflect value.
func structPointer_field(p structPointer, f field) reflect.Value {
// Special case: an extension map entry with a value of type T
// passes a *T to the struct-handling code with a zero field,
// expecting that it will be treated as equivalent to *struct{ X T },
// which has the same memory layout. We have to handle that case
// specially, because reflect will panic if we call FieldByIndex on a
// non-struct.
if f == nil {
return p.v.Elem()
}
return p.v.Elem().FieldByIndex(f)
}
// ifield returns the given field in the struct as an interface value.
func structPointer_ifield(p structPointer, f field) interface{} {
return structPointer_field(p, f).Addr().Interface()
}
// Bytes returns the address of a []byte field in the struct.
func structPointer_Bytes(p structPointer, f field) *[]byte {
return structPointer_ifield(p, f).(*[]byte)
}
// BytesSlice returns the address of a [][]byte field in the struct.
func structPointer_BytesSlice(p structPointer, f field) *[][]byte {
return structPointer_ifield(p, f).(*[][]byte)
}
// Bool returns the address of a *bool field in the struct.
func structPointer_Bool(p structPointer, f field) **bool {
return structPointer_ifield(p, f).(**bool)
}
// BoolVal returns the address of a bool field in the struct.
func structPointer_BoolVal(p structPointer, f field) *bool {
return structPointer_ifield(p, f).(*bool)
}
// BoolSlice returns the address of a []bool field in the struct.
func structPointer_BoolSlice(p structPointer, f field) *[]bool {
return structPointer_ifield(p, f).(*[]bool)
}
// String returns the address of a *string field in the struct.
func structPointer_String(p structPointer, f field) **string {
return structPointer_ifield(p, f).(**string)
}
// StringVal returns the address of a string field in the struct.
func structPointer_StringVal(p structPointer, f field) *string {
return structPointer_ifield(p, f).(*string)
}
// StringSlice returns the address of a []string field in the struct.
func structPointer_StringSlice(p structPointer, f field) *[]string {
return structPointer_ifield(p, f).(*[]string)
}
// ExtMap returns the address of an extension map field in the struct.
func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
return structPointer_ifield(p, f).(*map[int32]Extension)
}
// NewAt returns the reflect.Value for a pointer to a field in the struct.
func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
return structPointer_field(p, f).Addr()
}
// SetStructPointer writes a *struct field in the struct.
func structPointer_SetStructPointer(p structPointer, f field, q structPointer) {
structPointer_field(p, f).Set(q.v)
}
// GetStructPointer reads a *struct field in the struct.
func structPointer_GetStructPointer(p structPointer, f field) structPointer {
return structPointer{structPointer_field(p, f)}
}
// StructPointerSlice the address of a []*struct field in the struct.
func structPointer_StructPointerSlice(p structPointer, f field) structPointerSlice {
return structPointerSlice{structPointer_field(p, f)}
}
// A structPointerSlice represents the address of a slice of pointers to structs
// (themselves messages or groups). That is, v.Type() is *[]*struct{...}.
type structPointerSlice struct {
v reflect.Value
}
func (p structPointerSlice) Len() int { return p.v.Len() }
func (p structPointerSlice) Index(i int) structPointer { return structPointer{p.v.Index(i)} }
func (p structPointerSlice) Append(q structPointer) {
p.v.Set(reflect.Append(p.v, q.v))
}
var (
int32Type = reflect.TypeOf(int32(0))
uint32Type = reflect.TypeOf(uint32(0))
float32Type = reflect.TypeOf(float32(0))
int64Type = reflect.TypeOf(int64(0))
uint64Type = reflect.TypeOf(uint64(0))
float64Type = reflect.TypeOf(float64(0))
)
// A word32 represents a field of type *int32, *uint32, *float32, or *enum.
// That is, v.Type() is *int32, *uint32, *float32, or *enum and v is assignable.
type word32 struct {
v reflect.Value
}
// IsNil reports whether p is nil.
func word32_IsNil(p word32) bool {
return p.v.IsNil()
}
// Set sets p to point at a newly allocated word with bits set to x.
func word32_Set(p word32, o *Buffer, x uint32) {
t := p.v.Type().Elem()
switch t {
case int32Type:
if len(o.int32s) == 0 {
o.int32s = make([]int32, uint32PoolSize)
}
o.int32s[0] = int32(x)
p.v.Set(reflect.ValueOf(&o.int32s[0]))
o.int32s = o.int32s[1:]
return
case uint32Type:
if len(o.uint32s) == 0 {
o.uint32s = make([]uint32, uint32PoolSize)
}
o.uint32s[0] = x
p.v.Set(reflect.ValueOf(&o.uint32s[0]))
o.uint32s = o.uint32s[1:]
return
case float32Type:
if len(o.float32s) == 0 {
o.float32s = make([]float32, uint32PoolSize)
}
o.float32s[0] = math.Float32frombits(x)
p.v.Set(reflect.ValueOf(&o.float32s[0]))
o.float32s = o.float32s[1:]
return
}
// must be enum
p.v.Set(reflect.New(t))
p.v.Elem().SetInt(int64(int32(x)))
}
// Get gets the bits pointed at by p, as a uint32.
func word32_Get(p word32) uint32 {
elem := p.v.Elem()
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32 returns a reference to a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32(p structPointer, f field) word32 {
return word32{structPointer_field(p, f)}
}
// A word32Val represents a field of type int32, uint32, float32, or enum.
// That is, v.Type() is int32, uint32, float32, or enum and v is assignable.
type word32Val struct {
v reflect.Value
}
// Set sets *p to x.
func word32Val_Set(p word32Val, x uint32) {
switch p.v.Type() {
case int32Type:
p.v.SetInt(int64(x))
return
case uint32Type:
p.v.SetUint(uint64(x))
return
case float32Type:
p.v.SetFloat(float64(math.Float32frombits(x)))
return
}
// must be enum
p.v.SetInt(int64(int32(x)))
}
// Get gets the bits pointed at by p, as a uint32.
func word32Val_Get(p word32Val) uint32 {
elem := p.v
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32Val returns a reference to a int32, uint32, float32, or enum field in the struct.
func structPointer_Word32Val(p structPointer, f field) word32Val {
return word32Val{structPointer_field(p, f)}
}
// A word32Slice is a slice of 32-bit values.
// That is, v.Type() is []int32, []uint32, []float32, or []enum.
type word32Slice struct {
v reflect.Value
}
func (p word32Slice) Append(x uint32) {
n, m := p.v.Len(), p.v.Cap()
if n < m {
p.v.SetLen(n + 1)
} else {
t := p.v.Type().Elem()
p.v.Set(reflect.Append(p.v, reflect.Zero(t)))
}
elem := p.v.Index(n)
switch elem.Kind() {
case reflect.Int32:
elem.SetInt(int64(int32(x)))
case reflect.Uint32:
elem.SetUint(uint64(x))
case reflect.Float32:
elem.SetFloat(float64(math.Float32frombits(x)))
}
}
func (p word32Slice) Len() int {
return p.v.Len()
}
func (p word32Slice) Index(i int) uint32 {
elem := p.v.Index(i)
switch elem.Kind() {
case reflect.Int32:
return uint32(elem.Int())
case reflect.Uint32:
return uint32(elem.Uint())
case reflect.Float32:
return math.Float32bits(float32(elem.Float()))
}
panic("unreachable")
}
// Word32Slice returns a reference to a []int32, []uint32, []float32, or []enum field in the struct.
func structPointer_Word32Slice(p structPointer, f field) word32Slice {
return word32Slice{structPointer_field(p, f)}
}
// word64 is like word32 but for 64-bit values.
type word64 struct {
v reflect.Value
}
func word64_Set(p word64, o *Buffer, x uint64) {
t := p.v.Type().Elem()
switch t {
case int64Type:
if len(o.int64s) == 0 {
o.int64s = make([]int64, uint64PoolSize)
}
o.int64s[0] = int64(x)
p.v.Set(reflect.ValueOf(&o.int64s[0]))
o.int64s = o.int64s[1:]
return
case uint64Type:
if len(o.uint64s) == 0 {
o.uint64s = make([]uint64, uint64PoolSize)
}
o.uint64s[0] = x
p.v.Set(reflect.ValueOf(&o.uint64s[0]))
o.uint64s = o.uint64s[1:]
return
case float64Type:
if len(o.float64s) == 0 {
o.float64s = make([]float64, uint64PoolSize)
}
o.float64s[0] = math.Float64frombits(x)
p.v.Set(reflect.ValueOf(&o.float64s[0]))
o.float64s = o.float64s[1:]
return
}
panic("unreachable")
}
func word64_IsNil(p word64) bool {
return p.v.IsNil()
}
func word64_Get(p word64) uint64 {
elem := p.v.Elem()
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return elem.Uint()
case reflect.Float64:
return math.Float64bits(elem.Float())
}
panic("unreachable")
}
func structPointer_Word64(p structPointer, f field) word64 {
return word64{structPointer_field(p, f)}
}
// word64Val is like word32Val but for 64-bit values.
type word64Val struct {
v reflect.Value
}
func word64Val_Set(p word64Val, o *Buffer, x uint64) {
switch p.v.Type() {
case int64Type:
p.v.SetInt(int64(x))
return
case uint64Type:
p.v.SetUint(x)
return
case float64Type:
p.v.SetFloat(math.Float64frombits(x))
return
}
panic("unreachable")
}
func word64Val_Get(p word64Val) uint64 {
elem := p.v
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return elem.Uint()
case reflect.Float64:
return math.Float64bits(elem.Float())
}
panic("unreachable")
}
func structPointer_Word64Val(p structPointer, f field) word64Val {
return word64Val{structPointer_field(p, f)}
}
type word64Slice struct {
v reflect.Value
}
func (p word64Slice) Append(x uint64) {
n, m := p.v.Len(), p.v.Cap()
if n < m {
p.v.SetLen(n + 1)
} else {
t := p.v.Type().Elem()
p.v.Set(reflect.Append(p.v, reflect.Zero(t)))
}
elem := p.v.Index(n)
switch elem.Kind() {
case reflect.Int64:
elem.SetInt(int64(int64(x)))
case reflect.Uint64:
elem.SetUint(uint64(x))
case reflect.Float64:
elem.SetFloat(float64(math.Float64frombits(x)))
}
}
func (p word64Slice) Len() int {
return p.v.Len()
}
func (p word64Slice) Index(i int) uint64 {
elem := p.v.Index(i)
switch elem.Kind() {
case reflect.Int64:
return uint64(elem.Int())
case reflect.Uint64:
return uint64(elem.Uint())
case reflect.Float64:
return math.Float64bits(float64(elem.Float()))
}
panic("unreachable")
}
func structPointer_Word64Slice(p structPointer, f field) word64Slice {
return word64Slice{structPointer_field(p, f)}
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// +build !appengine
// This file contains the implementation of the proto field accesses using package unsafe.
package proto
import (
"reflect"
"unsafe"
)
// NOTE: These type_Foo functions would more idiomatically be methods,
// but Go does not allow methods on pointer types, and we must preserve
// some pointer type for the garbage collector. We use these
// funcs with clunky names as our poor approximation to methods.
//
// An alternative would be
// type structPointer struct { p unsafe.Pointer }
// but that does not registerize as well.
// A structPointer is a pointer to a struct.
type structPointer unsafe.Pointer
// toStructPointer returns a structPointer equivalent to the given reflect value.
func toStructPointer(v reflect.Value) structPointer {
return structPointer(unsafe.Pointer(v.Pointer()))
}
// IsNil reports whether p is nil.
func structPointer_IsNil(p structPointer) bool {
return p == nil
}
// Interface returns the struct pointer, assumed to have element type t,
// as an interface value.
func structPointer_Interface(p structPointer, t reflect.Type) interface{} {
return reflect.NewAt(t, unsafe.Pointer(p)).Interface()
}
// A field identifies a field in a struct, accessible from a structPointer.
// In this implementation, a field is identified by its byte offset from the start of the struct.
type field uintptr
// toField returns a field equivalent to the given reflect field.
func toField(f *reflect.StructField) field {
return field(f.Offset)
}
// invalidField is an invalid field identifier.
const invalidField = ^field(0)
// IsValid reports whether the field identifier is valid.
func (f field) IsValid() bool {
return f != ^field(0)
}
// Bytes returns the address of a []byte field in the struct.
func structPointer_Bytes(p structPointer, f field) *[]byte {
return (*[]byte)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BytesSlice returns the address of a [][]byte field in the struct.
func structPointer_BytesSlice(p structPointer, f field) *[][]byte {
return (*[][]byte)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// Bool returns the address of a *bool field in the struct.
func structPointer_Bool(p structPointer, f field) **bool {
return (**bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BoolVal returns the address of a bool field in the struct.
func structPointer_BoolVal(p structPointer, f field) *bool {
return (*bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// BoolSlice returns the address of a []bool field in the struct.
func structPointer_BoolSlice(p structPointer, f field) *[]bool {
return (*[]bool)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// String returns the address of a *string field in the struct.
func structPointer_String(p structPointer, f field) **string {
return (**string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StringVal returns the address of a string field in the struct.
func structPointer_StringVal(p structPointer, f field) *string {
return (*string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StringSlice returns the address of a []string field in the struct.
func structPointer_StringSlice(p structPointer, f field) *[]string {
return (*[]string)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// ExtMap returns the address of an extension map field in the struct.
func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
return (*map[int32]Extension)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// NewAt returns the reflect.Value for a pointer to a field in the struct.
func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
return reflect.NewAt(typ, unsafe.Pointer(uintptr(p)+uintptr(f)))
}
// SetStructPointer writes a *struct field in the struct.
func structPointer_SetStructPointer(p structPointer, f field, q structPointer) {
*(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f))) = q
}
// GetStructPointer reads a *struct field in the struct.
func structPointer_GetStructPointer(p structPointer, f field) structPointer {
return *(*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// StructPointerSlice the address of a []*struct field in the struct.
func structPointer_StructPointerSlice(p structPointer, f field) *structPointerSlice {
return (*structPointerSlice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// A structPointerSlice represents a slice of pointers to structs (themselves submessages or groups).
type structPointerSlice []structPointer
func (v *structPointerSlice) Len() int { return len(*v) }
func (v *structPointerSlice) Index(i int) structPointer { return (*v)[i] }
func (v *structPointerSlice) Append(p structPointer) { *v = append(*v, p) }
// A word32 is the address of a "pointer to 32-bit value" field.
type word32 **uint32
// IsNil reports whether *v is nil.
func word32_IsNil(p word32) bool {
return *p == nil
}
// Set sets *v to point at a newly allocated word set to x.
func word32_Set(p word32, o *Buffer, x uint32) {
if len(o.uint32s) == 0 {
o.uint32s = make([]uint32, uint32PoolSize)
}
o.uint32s[0] = x
*p = &o.uint32s[0]
o.uint32s = o.uint32s[1:]
}
// Get gets the value pointed at by *v.
func word32_Get(p word32) uint32 {
return **p
}
// Word32 returns the address of a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32(p structPointer, f field) word32 {
return word32((**uint32)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// A word32Val is the address of a 32-bit value field.
type word32Val *uint32
// Set sets *p to x.
func word32Val_Set(p word32Val, x uint32) {
*p = x
}
// Get gets the value pointed at by p.
func word32Val_Get(p word32Val) uint32 {
return *p
}
// Word32Val returns the address of a *int32, *uint32, *float32, or *enum field in the struct.
func structPointer_Word32Val(p structPointer, f field) word32Val {
return word32Val((*uint32)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// A word32Slice is a slice of 32-bit values.
type word32Slice []uint32
func (v *word32Slice) Append(x uint32) { *v = append(*v, x) }
func (v *word32Slice) Len() int { return len(*v) }
func (v *word32Slice) Index(i int) uint32 { return (*v)[i] }
// Word32Slice returns the address of a []int32, []uint32, []float32, or []enum field in the struct.
func structPointer_Word32Slice(p structPointer, f field) *word32Slice {
return (*word32Slice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}
// word64 is like word32 but for 64-bit values.
type word64 **uint64
func word64_Set(p word64, o *Buffer, x uint64) {
if len(o.uint64s) == 0 {
o.uint64s = make([]uint64, uint64PoolSize)
}
o.uint64s[0] = x
*p = &o.uint64s[0]
o.uint64s = o.uint64s[1:]
}
func word64_IsNil(p word64) bool {
return *p == nil
}
func word64_Get(p word64) uint64 {
return **p
}
func structPointer_Word64(p structPointer, f field) word64 {
return word64((**uint64)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// word64Val is like word32Val but for 64-bit values.
type word64Val *uint64
func word64Val_Set(p word64Val, o *Buffer, x uint64) {
*p = x
}
func word64Val_Get(p word64Val) uint64 {
return *p
}
func structPointer_Word64Val(p structPointer, f field) word64Val {
return word64Val((*uint64)(unsafe.Pointer(uintptr(p) + uintptr(f))))
}
// word64Slice is like word32Slice but for 64-bit values.
type word64Slice []uint64
func (v *word64Slice) Append(x uint64) { *v = append(*v, x) }
func (v *word64Slice) Len() int { return len(*v) }
func (v *word64Slice) Index(i int) uint64 { return (*v)[i] }
func structPointer_Word64Slice(p structPointer, f field) *word64Slice {
return (*word64Slice)(unsafe.Pointer(uintptr(p) + uintptr(f)))
}

742
Godeps/_workspace/src/github.com/golang/protobuf/proto/properties.go generated vendored Normal file
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@ -0,0 +1,742 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
/*
* Routines for encoding data into the wire format for protocol buffers.
*/
import (
"fmt"
"os"
"reflect"
"sort"
"strconv"
"strings"
"sync"
)
const debug bool = false
// Constants that identify the encoding of a value on the wire.
const (
WireVarint = 0
WireFixed64 = 1
WireBytes = 2
WireStartGroup = 3
WireEndGroup = 4
WireFixed32 = 5
)
const startSize = 10 // initial slice/string sizes
// Encoders are defined in encode.go
// An encoder outputs the full representation of a field, including its
// tag and encoder type.
type encoder func(p *Buffer, prop *Properties, base structPointer) error
// A valueEncoder encodes a single integer in a particular encoding.
type valueEncoder func(o *Buffer, x uint64) error
// Sizers are defined in encode.go
// A sizer returns the encoded size of a field, including its tag and encoder
// type.
type sizer func(prop *Properties, base structPointer) int
// A valueSizer returns the encoded size of a single integer in a particular
// encoding.
type valueSizer func(x uint64) int
// Decoders are defined in decode.go
// A decoder creates a value from its wire representation.
// Unrecognized subelements are saved in unrec.
type decoder func(p *Buffer, prop *Properties, base structPointer) error
// A valueDecoder decodes a single integer in a particular encoding.
type valueDecoder func(o *Buffer) (x uint64, err error)
// tagMap is an optimization over map[int]int for typical protocol buffer
// use-cases. Encoded protocol buffers are often in tag order with small tag
// numbers.
type tagMap struct {
fastTags []int
slowTags map[int]int
}
// tagMapFastLimit is the upper bound on the tag number that will be stored in
// the tagMap slice rather than its map.
const tagMapFastLimit = 1024
func (p *tagMap) get(t int) (int, bool) {
if t > 0 && t < tagMapFastLimit {
if t >= len(p.fastTags) {
return 0, false
}
fi := p.fastTags[t]
return fi, fi >= 0
}
fi, ok := p.slowTags[t]
return fi, ok
}
func (p *tagMap) put(t int, fi int) {
if t > 0 && t < tagMapFastLimit {
for len(p.fastTags) < t+1 {
p.fastTags = append(p.fastTags, -1)
}
p.fastTags[t] = fi
return
}
if p.slowTags == nil {
p.slowTags = make(map[int]int)
}
p.slowTags[t] = fi
}
// StructProperties represents properties for all the fields of a struct.
// decoderTags and decoderOrigNames should only be used by the decoder.
type StructProperties struct {
Prop []*Properties // properties for each field
reqCount int // required count
decoderTags tagMap // map from proto tag to struct field number
decoderOrigNames map[string]int // map from original name to struct field number
order []int // list of struct field numbers in tag order
unrecField field // field id of the XXX_unrecognized []byte field
extendable bool // is this an extendable proto
}
// Implement the sorting interface so we can sort the fields in tag order, as recommended by the spec.
// See encode.go, (*Buffer).enc_struct.
func (sp *StructProperties) Len() int { return len(sp.order) }
func (sp *StructProperties) Less(i, j int) bool {
return sp.Prop[sp.order[i]].Tag < sp.Prop[sp.order[j]].Tag
}
func (sp *StructProperties) Swap(i, j int) { sp.order[i], sp.order[j] = sp.order[j], sp.order[i] }
// Properties represents the protocol-specific behavior of a single struct field.
type Properties struct {
Name string // name of the field, for error messages
OrigName string // original name before protocol compiler (always set)
Wire string
WireType int
Tag int
Required bool
Optional bool
Repeated bool
Packed bool // relevant for repeated primitives only
Enum string // set for enum types only
proto3 bool // whether this is known to be a proto3 field; set for []byte only
Default string // default value
HasDefault bool // whether an explicit default was provided
def_uint64 uint64
enc encoder
valEnc valueEncoder // set for bool and numeric types only
field field
tagcode []byte // encoding of EncodeVarint((Tag<<3)|WireType)
tagbuf [8]byte
stype reflect.Type // set for struct types only
sprop *StructProperties // set for struct types only
isMarshaler bool
isUnmarshaler bool
mtype reflect.Type // set for map types only
mkeyprop *Properties // set for map types only
mvalprop *Properties // set for map types only
size sizer
valSize valueSizer // set for bool and numeric types only
dec decoder
valDec valueDecoder // set for bool and numeric types only
// If this is a packable field, this will be the decoder for the packed version of the field.
packedDec decoder
}
// String formats the properties in the protobuf struct field tag style.
func (p *Properties) String() string {
s := p.Wire
s = ","
s += strconv.Itoa(p.Tag)
if p.Required {
s += ",req"
}
if p.Optional {
s += ",opt"
}
if p.Repeated {
s += ",rep"
}
if p.Packed {
s += ",packed"
}
if p.OrigName != p.Name {
s += ",name=" + p.OrigName
}
if p.proto3 {
s += ",proto3"
}
if len(p.Enum) > 0 {
s += ",enum=" + p.Enum
}
if p.HasDefault {
s += ",def=" + p.Default
}
return s
}
// Parse populates p by parsing a string in the protobuf struct field tag style.
func (p *Properties) Parse(s string) {
// "bytes,49,opt,name=foo,def=hello!"
fields := strings.Split(s, ",") // breaks def=, but handled below.
if len(fields) < 2 {
fmt.Fprintf(os.Stderr, "proto: tag has too few fields: %q\n", s)
return
}
p.Wire = fields[0]
switch p.Wire {
case "varint":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeVarint
p.valDec = (*Buffer).DecodeVarint
p.valSize = sizeVarint
case "fixed32":
p.WireType = WireFixed32
p.valEnc = (*Buffer).EncodeFixed32
p.valDec = (*Buffer).DecodeFixed32
p.valSize = sizeFixed32
case "fixed64":
p.WireType = WireFixed64
p.valEnc = (*Buffer).EncodeFixed64
p.valDec = (*Buffer).DecodeFixed64
p.valSize = sizeFixed64
case "zigzag32":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeZigzag32
p.valDec = (*Buffer).DecodeZigzag32
p.valSize = sizeZigzag32
case "zigzag64":
p.WireType = WireVarint
p.valEnc = (*Buffer).EncodeZigzag64
p.valDec = (*Buffer).DecodeZigzag64
p.valSize = sizeZigzag64
case "bytes", "group":
p.WireType = WireBytes
// no numeric converter for non-numeric types
default:
fmt.Fprintf(os.Stderr, "proto: tag has unknown wire type: %q\n", s)
return
}
var err error
p.Tag, err = strconv.Atoi(fields[1])
if err != nil {
return
}
for i := 2; i < len(fields); i++ {
f := fields[i]
switch {
case f == "req":
p.Required = true
case f == "opt":
p.Optional = true
case f == "rep":
p.Repeated = true
case f == "packed":
p.Packed = true
case strings.HasPrefix(f, "name="):
p.OrigName = f[5:]
case strings.HasPrefix(f, "enum="):
p.Enum = f[5:]
case f == "proto3":
p.proto3 = true
case strings.HasPrefix(f, "def="):
p.HasDefault = true
p.Default = f[4:] // rest of string
if i+1 < len(fields) {
// Commas aren't escaped, and def is always last.
p.Default += "," + strings.Join(fields[i+1:], ",")
break
}
}
}
}
func logNoSliceEnc(t1, t2 reflect.Type) {
fmt.Fprintf(os.Stderr, "proto: no slice oenc for %T = []%T\n", t1, t2)
}
var protoMessageType = reflect.TypeOf((*Message)(nil)).Elem()
// Initialize the fields for encoding and decoding.
func (p *Properties) setEncAndDec(typ reflect.Type, f *reflect.StructField, lockGetProp bool) {
p.enc = nil
p.dec = nil
p.size = nil
switch t1 := typ; t1.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no coders for %v\n", t1)
// proto3 scalar types
case reflect.Bool:
p.enc = (*Buffer).enc_proto3_bool
p.dec = (*Buffer).dec_proto3_bool
p.size = size_proto3_bool
case reflect.Int32:
p.enc = (*Buffer).enc_proto3_int32
p.dec = (*Buffer).dec_proto3_int32
p.size = size_proto3_int32
case reflect.Uint32:
p.enc = (*Buffer).enc_proto3_uint32
p.dec = (*Buffer).dec_proto3_int32 // can reuse
p.size = size_proto3_uint32
case reflect.Int64, reflect.Uint64:
p.enc = (*Buffer).enc_proto3_int64
p.dec = (*Buffer).dec_proto3_int64
p.size = size_proto3_int64
case reflect.Float32:
p.enc = (*Buffer).enc_proto3_uint32 // can just treat them as bits
p.dec = (*Buffer).dec_proto3_int32
p.size = size_proto3_uint32
case reflect.Float64:
p.enc = (*Buffer).enc_proto3_int64 // can just treat them as bits
p.dec = (*Buffer).dec_proto3_int64
p.size = size_proto3_int64
case reflect.String:
p.enc = (*Buffer).enc_proto3_string
p.dec = (*Buffer).dec_proto3_string
p.size = size_proto3_string
case reflect.Ptr:
switch t2 := t1.Elem(); t2.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no encoder function for %v -> %v\n", t1, t2)
break
case reflect.Bool:
p.enc = (*Buffer).enc_bool
p.dec = (*Buffer).dec_bool
p.size = size_bool
case reflect.Int32:
p.enc = (*Buffer).enc_int32
p.dec = (*Buffer).dec_int32
p.size = size_int32
case reflect.Uint32:
p.enc = (*Buffer).enc_uint32
p.dec = (*Buffer).dec_int32 // can reuse
p.size = size_uint32
case reflect.Int64, reflect.Uint64:
p.enc = (*Buffer).enc_int64
p.dec = (*Buffer).dec_int64
p.size = size_int64
case reflect.Float32:
p.enc = (*Buffer).enc_uint32 // can just treat them as bits
p.dec = (*Buffer).dec_int32
p.size = size_uint32
case reflect.Float64:
p.enc = (*Buffer).enc_int64 // can just treat them as bits
p.dec = (*Buffer).dec_int64
p.size = size_int64
case reflect.String:
p.enc = (*Buffer).enc_string
p.dec = (*Buffer).dec_string
p.size = size_string
case reflect.Struct:
p.stype = t1.Elem()
p.isMarshaler = isMarshaler(t1)
p.isUnmarshaler = isUnmarshaler(t1)
if p.Wire == "bytes" {
p.enc = (*Buffer).enc_struct_message
p.dec = (*Buffer).dec_struct_message
p.size = size_struct_message
} else {
p.enc = (*Buffer).enc_struct_group
p.dec = (*Buffer).dec_struct_group
p.size = size_struct_group
}
}
case reflect.Slice:
switch t2 := t1.Elem(); t2.Kind() {
default:
logNoSliceEnc(t1, t2)
break
case reflect.Bool:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_bool
p.size = size_slice_packed_bool
} else {
p.enc = (*Buffer).enc_slice_bool
p.size = size_slice_bool
}
p.dec = (*Buffer).dec_slice_bool
p.packedDec = (*Buffer).dec_slice_packed_bool
case reflect.Int32:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int32
p.size = size_slice_packed_int32
} else {
p.enc = (*Buffer).enc_slice_int32
p.size = size_slice_int32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case reflect.Uint32:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_uint32
p.size = size_slice_packed_uint32
} else {
p.enc = (*Buffer).enc_slice_uint32
p.size = size_slice_uint32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case reflect.Int64, reflect.Uint64:
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int64
p.size = size_slice_packed_int64
} else {
p.enc = (*Buffer).enc_slice_int64
p.size = size_slice_int64
}
p.dec = (*Buffer).dec_slice_int64
p.packedDec = (*Buffer).dec_slice_packed_int64
case reflect.Uint8:
p.enc = (*Buffer).enc_slice_byte
p.dec = (*Buffer).dec_slice_byte
p.size = size_slice_byte
// This is a []byte, which is either a bytes field,
// or the value of a map field. In the latter case,
// we always encode an empty []byte, so we should not
// use the proto3 enc/size funcs.
// f == nil iff this is the key/value of a map field.
if p.proto3 && f != nil {
p.enc = (*Buffer).enc_proto3_slice_byte
p.size = size_proto3_slice_byte
}
case reflect.Float32, reflect.Float64:
switch t2.Bits() {
case 32:
// can just treat them as bits
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_uint32
p.size = size_slice_packed_uint32
} else {
p.enc = (*Buffer).enc_slice_uint32
p.size = size_slice_uint32
}
p.dec = (*Buffer).dec_slice_int32
p.packedDec = (*Buffer).dec_slice_packed_int32
case 64:
// can just treat them as bits
if p.Packed {
p.enc = (*Buffer).enc_slice_packed_int64
p.size = size_slice_packed_int64
} else {
p.enc = (*Buffer).enc_slice_int64
p.size = size_slice_int64
}
p.dec = (*Buffer).dec_slice_int64
p.packedDec = (*Buffer).dec_slice_packed_int64
default:
logNoSliceEnc(t1, t2)
break
}
case reflect.String:
p.enc = (*Buffer).enc_slice_string
p.dec = (*Buffer).dec_slice_string
p.size = size_slice_string
case reflect.Ptr:
switch t3 := t2.Elem(); t3.Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no ptr oenc for %T -> %T -> %T\n", t1, t2, t3)
break
case reflect.Struct:
p.stype = t2.Elem()
p.isMarshaler = isMarshaler(t2)
p.isUnmarshaler = isUnmarshaler(t2)
if p.Wire == "bytes" {
p.enc = (*Buffer).enc_slice_struct_message
p.dec = (*Buffer).dec_slice_struct_message
p.size = size_slice_struct_message
} else {
p.enc = (*Buffer).enc_slice_struct_group
p.dec = (*Buffer).dec_slice_struct_group
p.size = size_slice_struct_group
}
}
case reflect.Slice:
switch t2.Elem().Kind() {
default:
fmt.Fprintf(os.Stderr, "proto: no slice elem oenc for %T -> %T -> %T\n", t1, t2, t2.Elem())
break
case reflect.Uint8:
p.enc = (*Buffer).enc_slice_slice_byte
p.dec = (*Buffer).dec_slice_slice_byte
p.size = size_slice_slice_byte
}
}
case reflect.Map:
p.enc = (*Buffer).enc_new_map
p.dec = (*Buffer).dec_new_map
p.size = size_new_map
p.mtype = t1
p.mkeyprop = &Properties{}
p.mkeyprop.init(reflect.PtrTo(p.mtype.Key()), "Key", f.Tag.Get("protobuf_key"), nil, lockGetProp)
p.mvalprop = &Properties{}
vtype := p.mtype.Elem()
if vtype.Kind() != reflect.Ptr && vtype.Kind() != reflect.Slice {
// The value type is not a message (*T) or bytes ([]byte),
// so we need encoders for the pointer to this type.
vtype = reflect.PtrTo(vtype)
}
p.mvalprop.init(vtype, "Value", f.Tag.Get("protobuf_val"), nil, lockGetProp)
}
// precalculate tag code
wire := p.WireType
if p.Packed {
wire = WireBytes
}
x := uint32(p.Tag)<<3 | uint32(wire)
i := 0
for i = 0; x > 127; i++ {
p.tagbuf[i] = 0x80 | uint8(x&0x7F)
x >>= 7
}
p.tagbuf[i] = uint8(x)
p.tagcode = p.tagbuf[0 : i+1]
if p.stype != nil {
if lockGetProp {
p.sprop = GetProperties(p.stype)
} else {
p.sprop = getPropertiesLocked(p.stype)
}
}
}
var (
marshalerType = reflect.TypeOf((*Marshaler)(nil)).Elem()
unmarshalerType = reflect.TypeOf((*Unmarshaler)(nil)).Elem()
)
// isMarshaler reports whether type t implements Marshaler.
func isMarshaler(t reflect.Type) bool {
// We're checking for (likely) pointer-receiver methods
// so if t is not a pointer, something is very wrong.
// The calls above only invoke isMarshaler on pointer types.
if t.Kind() != reflect.Ptr {
panic("proto: misuse of isMarshaler")
}
return t.Implements(marshalerType)
}
// isUnmarshaler reports whether type t implements Unmarshaler.
func isUnmarshaler(t reflect.Type) bool {
// We're checking for (likely) pointer-receiver methods
// so if t is not a pointer, something is very wrong.
// The calls above only invoke isUnmarshaler on pointer types.
if t.Kind() != reflect.Ptr {
panic("proto: misuse of isUnmarshaler")
}
return t.Implements(unmarshalerType)
}
// Init populates the properties from a protocol buffer struct tag.
func (p *Properties) Init(typ reflect.Type, name, tag string, f *reflect.StructField) {
p.init(typ, name, tag, f, true)
}
func (p *Properties) init(typ reflect.Type, name, tag string, f *reflect.StructField, lockGetProp bool) {
// "bytes,49,opt,def=hello!"
p.Name = name
p.OrigName = name
if f != nil {
p.field = toField(f)
}
if tag == "" {
return
}
p.Parse(tag)
p.setEncAndDec(typ, f, lockGetProp)
}
var (
propertiesMu sync.RWMutex
propertiesMap = make(map[reflect.Type]*StructProperties)
)
// GetProperties returns the list of properties for the type represented by t.
// t must represent a generated struct type of a protocol message.
func GetProperties(t reflect.Type) *StructProperties {
if t.Kind() != reflect.Struct {
panic("proto: type must have kind struct")
}
// Most calls to GetProperties in a long-running program will be
// retrieving details for types we have seen before.
propertiesMu.RLock()
sprop, ok := propertiesMap[t]
propertiesMu.RUnlock()
if ok {
if collectStats {
stats.Chit++
}
return sprop
}
propertiesMu.Lock()
sprop = getPropertiesLocked(t)
propertiesMu.Unlock()
return sprop
}
// getPropertiesLocked requires that propertiesMu is held.
func getPropertiesLocked(t reflect.Type) *StructProperties {
if prop, ok := propertiesMap[t]; ok {
if collectStats {
stats.Chit++
}
return prop
}
if collectStats {
stats.Cmiss++
}
prop := new(StructProperties)
// in case of recursive protos, fill this in now.
propertiesMap[t] = prop
// build properties
prop.extendable = reflect.PtrTo(t).Implements(extendableProtoType)
prop.unrecField = invalidField
prop.Prop = make([]*Properties, t.NumField())
prop.order = make([]int, t.NumField())
for i := 0; i < t.NumField(); i++ {
f := t.Field(i)
p := new(Properties)
name := f.Name
p.init(f.Type, name, f.Tag.Get("protobuf"), &f, false)
if f.Name == "XXX_extensions" { // special case
p.enc = (*Buffer).enc_map
p.dec = nil // not needed
p.size = size_map
}
if f.Name == "XXX_unrecognized" { // special case
prop.unrecField = toField(&f)
}
prop.Prop[i] = p
prop.order[i] = i
if debug {
print(i, " ", f.Name, " ", t.String(), " ")
if p.Tag > 0 {
print(p.String())
}
print("\n")
}
if p.enc == nil && !strings.HasPrefix(f.Name, "XXX_") {
fmt.Fprintln(os.Stderr, "proto: no encoder for", f.Name, f.Type.String(), "[GetProperties]")
}
}
// Re-order prop.order.
sort.Sort(prop)
// build required counts
// build tags
reqCount := 0
prop.decoderOrigNames = make(map[string]int)
for i, p := range prop.Prop {
if strings.HasPrefix(p.Name, "XXX_") {
// Internal fields should not appear in tags/origNames maps.
// They are handled specially when encoding and decoding.
continue
}
if p.Required {
reqCount++
}
prop.decoderTags.put(p.Tag, i)
prop.decoderOrigNames[p.OrigName] = i
}
prop.reqCount = reqCount
return prop
}
// Return the Properties object for the x[0]'th field of the structure.
func propByIndex(t reflect.Type, x []int) *Properties {
if len(x) != 1 {
fmt.Fprintf(os.Stderr, "proto: field index dimension %d (not 1) for type %s\n", len(x), t)
return nil
}
prop := GetProperties(t)
return prop.Prop[x[0]]
}
// Get the address and type of a pointer to a struct from an interface.
func getbase(pb Message) (t reflect.Type, b structPointer, err error) {
if pb == nil {
err = ErrNil
return
}
// get the reflect type of the pointer to the struct.
t = reflect.TypeOf(pb)
// get the address of the struct.
value := reflect.ValueOf(pb)
b = toStructPointer(value)
return
}
// A global registry of enum types.
// The generated code will register the generated maps by calling RegisterEnum.
var enumValueMaps = make(map[string]map[string]int32)
// RegisterEnum is called from the generated code to install the enum descriptor
// maps into the global table to aid parsing text format protocol buffers.
func RegisterEnum(typeName string, unusedNameMap map[int32]string, valueMap map[string]int32) {
if _, ok := enumValueMaps[typeName]; ok {
panic("proto: duplicate enum registered: " + typeName)
}
enumValueMaps[typeName] = valueMap
}

68
Godeps/_workspace/src/github.com/golang/protobuf/proto/proto3_proto/proto3.proto generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2014 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
syntax = "proto3";
import "testdata/test.proto";
package proto3_proto;
message Message {
enum Humour {
UNKNOWN = 0;
PUNS = 1;
SLAPSTICK = 2;
BILL_BAILEY = 3;
}
string name = 1;
Humour hilarity = 2;
uint32 height_in_cm = 3;
bytes data = 4;
int64 result_count = 7;
bool true_scotsman = 8;
float score = 9;
repeated uint64 key = 5;
Nested nested = 6;
map<string, Nested> terrain = 10;
testdata.SubDefaults proto2_field = 11;
map<string, testdata.SubDefaults> proto2_value = 13;
}
message Nested {
string bunny = 1;
}
message MessageWithMap {
map<bool, bytes> byte_mapping = 1;
}

125
Godeps/_workspace/src/github.com/golang/protobuf/proto/proto3_test.go generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2014 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"testing"
"github.com/golang/protobuf/proto"
pb "github.com/golang/protobuf/proto/proto3_proto"
tpb "github.com/golang/protobuf/proto/testdata"
)
func TestProto3ZeroValues(t *testing.T) {
tests := []struct {
desc string
m proto.Message
}{
{"zero message", &pb.Message{}},
{"empty bytes field", &pb.Message{Data: []byte{}}},
}
for _, test := range tests {
b, err := proto.Marshal(test.m)
if err != nil {
t.Errorf("%s: proto.Marshal: %v", test.desc, err)
continue
}
if len(b) > 0 {
t.Errorf("%s: Encoding is non-empty: %q", test.desc, b)
}
}
}
func TestRoundTripProto3(t *testing.T) {
m := &pb.Message{
Name: "David", // (2 | 1<<3): 0x0a 0x05 "David"
Hilarity: pb.Message_PUNS, // (0 | 2<<3): 0x10 0x01
HeightInCm: 178, // (0 | 3<<3): 0x18 0xb2 0x01
Data: []byte("roboto"), // (2 | 4<<3): 0x20 0x06 "roboto"
ResultCount: 47, // (0 | 7<<3): 0x38 0x2f
TrueScotsman: true, // (0 | 8<<3): 0x40 0x01
Score: 8.1, // (5 | 9<<3): 0x4d <8.1>
Key: []uint64{1, 0xdeadbeef},
Nested: &pb.Nested{
Bunny: "Monty",
},
}
t.Logf(" m: %v", m)
b, err := proto.Marshal(m)
if err != nil {
t.Fatalf("proto.Marshal: %v", err)
}
t.Logf(" b: %q", b)
m2 := new(pb.Message)
if err := proto.Unmarshal(b, m2); err != nil {
t.Fatalf("proto.Unmarshal: %v", err)
}
t.Logf("m2: %v", m2)
if !proto.Equal(m, m2) {
t.Errorf("proto.Equal returned false:\n m: %v\nm2: %v", m, m2)
}
}
func TestProto3SetDefaults(t *testing.T) {
in := &pb.Message{
Terrain: map[string]*pb.Nested{
"meadow": new(pb.Nested),
},
Proto2Field: new(tpb.SubDefaults),
Proto2Value: map[string]*tpb.SubDefaults{
"badlands": new(tpb.SubDefaults),
},
}
got := proto.Clone(in).(*pb.Message)
proto.SetDefaults(got)
// There are no defaults in proto3. Everything should be the zero value, but
// we need to remember to set defaults for nested proto2 messages.
want := &pb.Message{
Terrain: map[string]*pb.Nested{
"meadow": new(pb.Nested),
},
Proto2Field: &tpb.SubDefaults{N: proto.Int64(7)},
Proto2Value: map[string]*tpb.SubDefaults{
"badlands": &tpb.SubDefaults{N: proto.Int64(7)},
},
}
if !proto.Equal(got, want) {
t.Errorf("with in = %v\nproto.SetDefaults(in) =>\ngot %v\nwant %v", in, got, want)
}
}

63
Godeps/_workspace/src/github.com/golang/protobuf/proto/size2_test.go generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
import (
"testing"
)
// This is a separate file and package from size_test.go because that one uses
// generated messages and thus may not be in package proto without having a circular
// dependency, whereas this file tests unexported details of size.go.
func TestVarintSize(t *testing.T) {
// Check the edge cases carefully.
testCases := []struct {
n uint64
size int
}{
{0, 1},
{1, 1},
{127, 1},
{128, 2},
{16383, 2},
{16384, 3},
{1<<63 - 1, 9},
{1 << 63, 10},
}
for _, tc := range testCases {
size := sizeVarint(tc.n)
if size != tc.size {
t.Errorf("sizeVarint(%d) = %d, want %d", tc.n, size, tc.size)
}
}
}

142
Godeps/_workspace/src/github.com/golang/protobuf/proto/size_test.go generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"log"
"strings"
"testing"
. "github.com/golang/protobuf/proto"
proto3pb "github.com/golang/protobuf/proto/proto3_proto"
pb "github.com/golang/protobuf/proto/testdata"
)
var messageWithExtension1 = &pb.MyMessage{Count: Int32(7)}
// messageWithExtension2 is in equal_test.go.
var messageWithExtension3 = &pb.MyMessage{Count: Int32(8)}
func init() {
if err := SetExtension(messageWithExtension1, pb.E_Ext_More, &pb.Ext{Data: String("Abbott")}); err != nil {
log.Panicf("SetExtension: %v", err)
}
if err := SetExtension(messageWithExtension3, pb.E_Ext_More, &pb.Ext{Data: String("Costello")}); err != nil {
log.Panicf("SetExtension: %v", err)
}
// Force messageWithExtension3 to have the extension encoded.
Marshal(messageWithExtension3)
}
var SizeTests = []struct {
desc string
pb Message
}{
{"empty", &pb.OtherMessage{}},
// Basic types.
{"bool", &pb.Defaults{F_Bool: Bool(true)}},
{"int32", &pb.Defaults{F_Int32: Int32(12)}},
{"negative int32", &pb.Defaults{F_Int32: Int32(-1)}},
{"small int64", &pb.Defaults{F_Int64: Int64(1)}},
{"big int64", &pb.Defaults{F_Int64: Int64(1 << 20)}},
{"negative int64", &pb.Defaults{F_Int64: Int64(-1)}},
{"fixed32", &pb.Defaults{F_Fixed32: Uint32(71)}},
{"fixed64", &pb.Defaults{F_Fixed64: Uint64(72)}},
{"uint32", &pb.Defaults{F_Uint32: Uint32(123)}},
{"uint64", &pb.Defaults{F_Uint64: Uint64(124)}},
{"float", &pb.Defaults{F_Float: Float32(12.6)}},
{"double", &pb.Defaults{F_Double: Float64(13.9)}},
{"string", &pb.Defaults{F_String: String("niles")}},
{"bytes", &pb.Defaults{F_Bytes: []byte("wowsa")}},
{"bytes, empty", &pb.Defaults{F_Bytes: []byte{}}},
{"sint32", &pb.Defaults{F_Sint32: Int32(65)}},
{"sint64", &pb.Defaults{F_Sint64: Int64(67)}},
{"enum", &pb.Defaults{F_Enum: pb.Defaults_BLUE.Enum()}},
// Repeated.
{"empty repeated bool", &pb.MoreRepeated{Bools: []bool{}}},
{"repeated bool", &pb.MoreRepeated{Bools: []bool{false, true, true, false}}},
{"packed repeated bool", &pb.MoreRepeated{BoolsPacked: []bool{false, true, true, false, true, true, true}}},
{"repeated int32", &pb.MoreRepeated{Ints: []int32{1, 12203, 1729, -1}}},
{"repeated int32 packed", &pb.MoreRepeated{IntsPacked: []int32{1, 12203, 1729}}},
{"repeated int64 packed", &pb.MoreRepeated{Int64SPacked: []int64{
// Need enough large numbers to verify that the header is counting the number of bytes
// for the field, not the number of elements.
1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62,
1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62, 1 << 62,
}}},
{"repeated string", &pb.MoreRepeated{Strings: []string{"r", "ken", "gri"}}},
{"repeated fixed", &pb.MoreRepeated{Fixeds: []uint32{1, 2, 3, 4}}},
// Nested.
{"nested", &pb.OldMessage{Nested: &pb.OldMessage_Nested{Name: String("whatever")}}},
{"group", &pb.GroupOld{G: &pb.GroupOld_G{X: Int32(12345)}}},
// Other things.
{"unrecognized", &pb.MoreRepeated{XXX_unrecognized: []byte{13<<3 | 0, 4}}},
{"extension (unencoded)", messageWithExtension1},
{"extension (encoded)", messageWithExtension3},
// proto3 message
{"proto3 empty", &proto3pb.Message{}},
{"proto3 bool", &proto3pb.Message{TrueScotsman: true}},
{"proto3 int64", &proto3pb.Message{ResultCount: 1}},
{"proto3 uint32", &proto3pb.Message{HeightInCm: 123}},
{"proto3 float", &proto3pb.Message{Score: 12.6}},
{"proto3 string", &proto3pb.Message{Name: "Snezana"}},
{"proto3 bytes", &proto3pb.Message{Data: []byte("wowsa")}},
{"proto3 bytes, empty", &proto3pb.Message{Data: []byte{}}},
{"proto3 enum", &proto3pb.Message{Hilarity: proto3pb.Message_PUNS}},
{"proto3 map field with empty bytes", &proto3pb.MessageWithMap{ByteMapping: map[bool][]byte{false: []byte{}}}},
{"map field", &pb.MessageWithMap{NameMapping: map[int32]string{1: "Rob", 7: "Andrew"}}},
{"map field with message", &pb.MessageWithMap{MsgMapping: map[int64]*pb.FloatingPoint{0x7001: &pb.FloatingPoint{F: Float64(2.0)}}}},
{"map field with bytes", &pb.MessageWithMap{ByteMapping: map[bool][]byte{true: []byte("this time for sure")}}},
{"map field with empty bytes", &pb.MessageWithMap{ByteMapping: map[bool][]byte{true: []byte{}}}},
{"map field with big entry", &pb.MessageWithMap{NameMapping: map[int32]string{8: strings.Repeat("x", 125)}}},
{"map field with big key and val", &pb.MessageWithMap{StrToStr: map[string]string{strings.Repeat("x", 70): strings.Repeat("y", 70)}}},
{"map field with big numeric key", &pb.MessageWithMap{NameMapping: map[int32]string{0xf00d: "om nom nom"}}},
}
func TestSize(t *testing.T) {
for _, tc := range SizeTests {
size := Size(tc.pb)
b, err := Marshal(tc.pb)
if err != nil {
t.Errorf("%v: Marshal failed: %v", tc.desc, err)
continue
}
if size != len(b) {
t.Errorf("%v: Size(%v) = %d, want %d", tc.desc, tc.pb, size, len(b))
t.Logf("%v: bytes: %#v", tc.desc, b)
}
}
}

50
Godeps/_workspace/src/github.com/golang/protobuf/proto/testdata/Makefile generated vendored Normal file
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# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
include ../../Make.protobuf
all: regenerate
regenerate:
rm -f test.pb.go
make test.pb.go
# The following rules are just aids to development. Not needed for typical testing.
diff: regenerate
git diff test.pb.go
restore:
cp test.pb.go.golden test.pb.go
preserve:
cp test.pb.go test.pb.go.golden

86
Godeps/_workspace/src/github.com/golang/protobuf/proto/testdata/golden_test.go generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2012 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Verify that the compiler output for test.proto is unchanged.
package testdata
import (
"crypto/sha1"
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"testing"
)
// sum returns in string form (for easy comparison) the SHA-1 hash of the named file.
func sum(t *testing.T, name string) string {
data, err := ioutil.ReadFile(name)
if err != nil {
t.Fatal(err)
}
t.Logf("sum(%q): length is %d", name, len(data))
hash := sha1.New()
_, err = hash.Write(data)
if err != nil {
t.Fatal(err)
}
return fmt.Sprintf("% x", hash.Sum(nil))
}
func run(t *testing.T, name string, args ...string) {
cmd := exec.Command(name, args...)
cmd.Stdin = os.Stdin
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
err := cmd.Run()
if err != nil {
t.Fatal(err)
}
}
func TestGolden(t *testing.T) {
// Compute the original checksum.
goldenSum := sum(t, "test.pb.go")
// Run the proto compiler.
run(t, "protoc", "--go_out="+os.TempDir(), "test.proto")
newFile := filepath.Join(os.TempDir(), "test.pb.go")
defer os.Remove(newFile)
// Compute the new checksum.
newSum := sum(t, newFile)
// Verify
if newSum != goldenSum {
run(t, "diff", "-u", "test.pb.go", newFile)
t.Fatal("Code generated by protoc-gen-go has changed; update test.pb.go")
}
}

480
Godeps/_workspace/src/github.com/golang/protobuf/proto/testdata/test.proto generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// A feature-rich test file for the protocol compiler and libraries.
syntax = "proto2";
package testdata;
enum FOO { FOO1 = 1; };
message GoEnum {
required FOO foo = 1;
}
message GoTestField {
required string Label = 1;
required string Type = 2;
}
message GoTest {
// An enum, for completeness.
enum KIND {
VOID = 0;
// Basic types
BOOL = 1;
BYTES = 2;
FINGERPRINT = 3;
FLOAT = 4;
INT = 5;
STRING = 6;
TIME = 7;
// Groupings
TUPLE = 8;
ARRAY = 9;
MAP = 10;
// Table types
TABLE = 11;
// Functions
FUNCTION = 12; // last tag
};
// Some typical parameters
required KIND Kind = 1;
optional string Table = 2;
optional int32 Param = 3;
// Required, repeated and optional foreign fields.
required GoTestField RequiredField = 4;
repeated GoTestField RepeatedField = 5;
optional GoTestField OptionalField = 6;
// Required fields of all basic types
required bool F_Bool_required = 10;
required int32 F_Int32_required = 11;
required int64 F_Int64_required = 12;
required fixed32 F_Fixed32_required = 13;
required fixed64 F_Fixed64_required = 14;
required uint32 F_Uint32_required = 15;
required uint64 F_Uint64_required = 16;
required float F_Float_required = 17;
required double F_Double_required = 18;
required string F_String_required = 19;
required bytes F_Bytes_required = 101;
required sint32 F_Sint32_required = 102;
required sint64 F_Sint64_required = 103;
// Repeated fields of all basic types
repeated bool F_Bool_repeated = 20;
repeated int32 F_Int32_repeated = 21;
repeated int64 F_Int64_repeated = 22;
repeated fixed32 F_Fixed32_repeated = 23;
repeated fixed64 F_Fixed64_repeated = 24;
repeated uint32 F_Uint32_repeated = 25;
repeated uint64 F_Uint64_repeated = 26;
repeated float F_Float_repeated = 27;
repeated double F_Double_repeated = 28;
repeated string F_String_repeated = 29;
repeated bytes F_Bytes_repeated = 201;
repeated sint32 F_Sint32_repeated = 202;
repeated sint64 F_Sint64_repeated = 203;
// Optional fields of all basic types
optional bool F_Bool_optional = 30;
optional int32 F_Int32_optional = 31;
optional int64 F_Int64_optional = 32;
optional fixed32 F_Fixed32_optional = 33;
optional fixed64 F_Fixed64_optional = 34;
optional uint32 F_Uint32_optional = 35;
optional uint64 F_Uint64_optional = 36;
optional float F_Float_optional = 37;
optional double F_Double_optional = 38;
optional string F_String_optional = 39;
optional bytes F_Bytes_optional = 301;
optional sint32 F_Sint32_optional = 302;
optional sint64 F_Sint64_optional = 303;
// Default-valued fields of all basic types
optional bool F_Bool_defaulted = 40 [default=true];
optional int32 F_Int32_defaulted = 41 [default=32];
optional int64 F_Int64_defaulted = 42 [default=64];
optional fixed32 F_Fixed32_defaulted = 43 [default=320];
optional fixed64 F_Fixed64_defaulted = 44 [default=640];
optional uint32 F_Uint32_defaulted = 45 [default=3200];
optional uint64 F_Uint64_defaulted = 46 [default=6400];
optional float F_Float_defaulted = 47 [default=314159.];
optional double F_Double_defaulted = 48 [default=271828.];
optional string F_String_defaulted = 49 [default="hello, \"world!\"\n"];
optional bytes F_Bytes_defaulted = 401 [default="Bignose"];
optional sint32 F_Sint32_defaulted = 402 [default = -32];
optional sint64 F_Sint64_defaulted = 403 [default = -64];
// Packed repeated fields (no string or bytes).
repeated bool F_Bool_repeated_packed = 50 [packed=true];
repeated int32 F_Int32_repeated_packed = 51 [packed=true];
repeated int64 F_Int64_repeated_packed = 52 [packed=true];
repeated fixed32 F_Fixed32_repeated_packed = 53 [packed=true];
repeated fixed64 F_Fixed64_repeated_packed = 54 [packed=true];
repeated uint32 F_Uint32_repeated_packed = 55 [packed=true];
repeated uint64 F_Uint64_repeated_packed = 56 [packed=true];
repeated float F_Float_repeated_packed = 57 [packed=true];
repeated double F_Double_repeated_packed = 58 [packed=true];
repeated sint32 F_Sint32_repeated_packed = 502 [packed=true];
repeated sint64 F_Sint64_repeated_packed = 503 [packed=true];
// Required, repeated, and optional groups.
required group RequiredGroup = 70 {
required string RequiredField = 71;
};
repeated group RepeatedGroup = 80 {
required string RequiredField = 81;
};
optional group OptionalGroup = 90 {
required string RequiredField = 91;
};
}
// For testing skipping of unrecognized fields.
// Numbers are all big, larger than tag numbers in GoTestField,
// the message used in the corresponding test.
message GoSkipTest {
required int32 skip_int32 = 11;
required fixed32 skip_fixed32 = 12;
required fixed64 skip_fixed64 = 13;
required string skip_string = 14;
required group SkipGroup = 15 {
required int32 group_int32 = 16;
required string group_string = 17;
}
}
// For testing packed/non-packed decoder switching.
// A serialized instance of one should be deserializable as the other.
message NonPackedTest {
repeated int32 a = 1;
}
message PackedTest {
repeated int32 b = 1 [packed=true];
}
message MaxTag {
// Maximum possible tag number.
optional string last_field = 536870911;
}
message OldMessage {
message Nested {
optional string name = 1;
}
optional Nested nested = 1;
optional int32 num = 2;
}
// NewMessage is wire compatible with OldMessage;
// imagine it as a future version.
message NewMessage {
message Nested {
optional string name = 1;
optional string food_group = 2;
}
optional Nested nested = 1;
// This is an int32 in OldMessage.
optional int64 num = 2;
}
// Smaller tests for ASCII formatting.
message InnerMessage {
required string host = 1;
optional int32 port = 2 [default=4000];
optional bool connected = 3;
}
message OtherMessage {
optional int64 key = 1;
optional bytes value = 2;
optional float weight = 3;
optional InnerMessage inner = 4;
}
message MyMessage {
required int32 count = 1;
optional string name = 2;
optional string quote = 3;
repeated string pet = 4;
optional InnerMessage inner = 5;
repeated OtherMessage others = 6;
repeated InnerMessage rep_inner = 12;
enum Color {
RED = 0;
GREEN = 1;
BLUE = 2;
};
optional Color bikeshed = 7;
optional group SomeGroup = 8 {
optional int32 group_field = 9;
}
// This field becomes [][]byte in the generated code.
repeated bytes rep_bytes = 10;
optional double bigfloat = 11;
extensions 100 to max;
}
message Ext {
extend MyMessage {
optional Ext more = 103;
optional string text = 104;
optional int32 number = 105;
}
optional string data = 1;
}
extend MyMessage {
repeated string greeting = 106;
}
message DefaultsMessage {
enum DefaultsEnum {
ZERO = 0;
ONE = 1;
TWO = 2;
};
extensions 100 to max;
}
extend DefaultsMessage {
optional double no_default_double = 101;
optional float no_default_float = 102;
optional int32 no_default_int32 = 103;
optional int64 no_default_int64 = 104;
optional uint32 no_default_uint32 = 105;
optional uint64 no_default_uint64 = 106;
optional sint32 no_default_sint32 = 107;
optional sint64 no_default_sint64 = 108;
optional fixed32 no_default_fixed32 = 109;
optional fixed64 no_default_fixed64 = 110;
optional sfixed32 no_default_sfixed32 = 111;
optional sfixed64 no_default_sfixed64 = 112;
optional bool no_default_bool = 113;
optional string no_default_string = 114;
optional bytes no_default_bytes = 115;
optional DefaultsMessage.DefaultsEnum no_default_enum = 116;
optional double default_double = 201 [default = 3.1415];
optional float default_float = 202 [default = 3.14];
optional int32 default_int32 = 203 [default = 42];
optional int64 default_int64 = 204 [default = 43];
optional uint32 default_uint32 = 205 [default = 44];
optional uint64 default_uint64 = 206 [default = 45];
optional sint32 default_sint32 = 207 [default = 46];
optional sint64 default_sint64 = 208 [default = 47];
optional fixed32 default_fixed32 = 209 [default = 48];
optional fixed64 default_fixed64 = 210 [default = 49];
optional sfixed32 default_sfixed32 = 211 [default = 50];
optional sfixed64 default_sfixed64 = 212 [default = 51];
optional bool default_bool = 213 [default = true];
optional string default_string = 214 [default = "Hello, string"];
optional bytes default_bytes = 215 [default = "Hello, bytes"];
optional DefaultsMessage.DefaultsEnum default_enum = 216 [default = ONE];
}
message MyMessageSet {
option message_set_wire_format = true;
extensions 100 to max;
}
message Empty {
}
extend MyMessageSet {
optional Empty x201 = 201;
optional Empty x202 = 202;
optional Empty x203 = 203;
optional Empty x204 = 204;
optional Empty x205 = 205;
optional Empty x206 = 206;
optional Empty x207 = 207;
optional Empty x208 = 208;
optional Empty x209 = 209;
optional Empty x210 = 210;
optional Empty x211 = 211;
optional Empty x212 = 212;
optional Empty x213 = 213;
optional Empty x214 = 214;
optional Empty x215 = 215;
optional Empty x216 = 216;
optional Empty x217 = 217;
optional Empty x218 = 218;
optional Empty x219 = 219;
optional Empty x220 = 220;
optional Empty x221 = 221;
optional Empty x222 = 222;
optional Empty x223 = 223;
optional Empty x224 = 224;
optional Empty x225 = 225;
optional Empty x226 = 226;
optional Empty x227 = 227;
optional Empty x228 = 228;
optional Empty x229 = 229;
optional Empty x230 = 230;
optional Empty x231 = 231;
optional Empty x232 = 232;
optional Empty x233 = 233;
optional Empty x234 = 234;
optional Empty x235 = 235;
optional Empty x236 = 236;
optional Empty x237 = 237;
optional Empty x238 = 238;
optional Empty x239 = 239;
optional Empty x240 = 240;
optional Empty x241 = 241;
optional Empty x242 = 242;
optional Empty x243 = 243;
optional Empty x244 = 244;
optional Empty x245 = 245;
optional Empty x246 = 246;
optional Empty x247 = 247;
optional Empty x248 = 248;
optional Empty x249 = 249;
optional Empty x250 = 250;
}
message MessageList {
repeated group Message = 1 {
required string name = 2;
required int32 count = 3;
}
}
message Strings {
optional string string_field = 1;
optional bytes bytes_field = 2;
}
message Defaults {
enum Color {
RED = 0;
GREEN = 1;
BLUE = 2;
}
// Default-valued fields of all basic types.
// Same as GoTest, but copied here to make testing easier.
optional bool F_Bool = 1 [default=true];
optional int32 F_Int32 = 2 [default=32];
optional int64 F_Int64 = 3 [default=64];
optional fixed32 F_Fixed32 = 4 [default=320];
optional fixed64 F_Fixed64 = 5 [default=640];
optional uint32 F_Uint32 = 6 [default=3200];
optional uint64 F_Uint64 = 7 [default=6400];
optional float F_Float = 8 [default=314159.];
optional double F_Double = 9 [default=271828.];
optional string F_String = 10 [default="hello, \"world!\"\n"];
optional bytes F_Bytes = 11 [default="Bignose"];
optional sint32 F_Sint32 = 12 [default=-32];
optional sint64 F_Sint64 = 13 [default=-64];
optional Color F_Enum = 14 [default=GREEN];
// More fields with crazy defaults.
optional float F_Pinf = 15 [default=inf];
optional float F_Ninf = 16 [default=-inf];
optional float F_Nan = 17 [default=nan];
// Sub-message.
optional SubDefaults sub = 18;
// Redundant but explicit defaults.
optional string str_zero = 19 [default=""];
}
message SubDefaults {
optional int64 n = 1 [default=7];
}
message RepeatedEnum {
enum Color {
RED = 1;
}
repeated Color color = 1;
}
message MoreRepeated {
repeated bool bools = 1;
repeated bool bools_packed = 2 [packed=true];
repeated int32 ints = 3;
repeated int32 ints_packed = 4 [packed=true];
repeated int64 int64s_packed = 7 [packed=true];
repeated string strings = 5;
repeated fixed32 fixeds = 6;
}
// GroupOld and GroupNew have the same wire format.
// GroupNew has a new field inside a group.
message GroupOld {
optional group G = 101 {
optional int32 x = 2;
}
}
message GroupNew {
optional group G = 101 {
optional int32 x = 2;
optional int32 y = 3;
}
}
message FloatingPoint {
required double f = 1;
}
message MessageWithMap {
map<int32, string> name_mapping = 1;
map<sint64, FloatingPoint> msg_mapping = 2;
map<bool, bytes> byte_mapping = 3;
map<string, string> str_to_str = 4;
}

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@ -0,0 +1,769 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
// Functions for writing the text protocol buffer format.
import (
"bufio"
"bytes"
"encoding"
"fmt"
"io"
"log"
"math"
"reflect"
"sort"
"strings"
)
var (
newline = []byte("\n")
spaces = []byte(" ")
gtNewline = []byte(">\n")
endBraceNewline = []byte("}\n")
backslashN = []byte{'\\', 'n'}
backslashR = []byte{'\\', 'r'}
backslashT = []byte{'\\', 't'}
backslashDQ = []byte{'\\', '"'}
backslashBS = []byte{'\\', '\\'}
posInf = []byte("inf")
negInf = []byte("-inf")
nan = []byte("nan")
)
type writer interface {
io.Writer
WriteByte(byte) error
}
// textWriter is an io.Writer that tracks its indentation level.
type textWriter struct {
ind int
complete bool // if the current position is a complete line
compact bool // whether to write out as a one-liner
w writer
}
func (w *textWriter) WriteString(s string) (n int, err error) {
if !strings.Contains(s, "\n") {
if !w.compact && w.complete {
w.writeIndent()
}
w.complete = false
return io.WriteString(w.w, s)
}
// WriteString is typically called without newlines, so this
// codepath and its copy are rare. We copy to avoid
// duplicating all of Write's logic here.
return w.Write([]byte(s))
}
func (w *textWriter) Write(p []byte) (n int, err error) {
newlines := bytes.Count(p, newline)
if newlines == 0 {
if !w.compact && w.complete {
w.writeIndent()
}
n, err = w.w.Write(p)
w.complete = false
return n, err
}
frags := bytes.SplitN(p, newline, newlines+1)
if w.compact {
for i, frag := range frags {
if i > 0 {
if err := w.w.WriteByte(' '); err != nil {
return n, err
}
n++
}
nn, err := w.w.Write(frag)
n += nn
if err != nil {
return n, err
}
}
return n, nil
}
for i, frag := range frags {
if w.complete {
w.writeIndent()
}
nn, err := w.w.Write(frag)
n += nn
if err != nil {
return n, err
}
if i+1 < len(frags) {
if err := w.w.WriteByte('\n'); err != nil {
return n, err
}
n++
}
}
w.complete = len(frags[len(frags)-1]) == 0
return n, nil
}
func (w *textWriter) WriteByte(c byte) error {
if w.compact && c == '\n' {
c = ' '
}
if !w.compact && w.complete {
w.writeIndent()
}
err := w.w.WriteByte(c)
w.complete = c == '\n'
return err
}
func (w *textWriter) indent() { w.ind++ }
func (w *textWriter) unindent() {
if w.ind == 0 {
log.Printf("proto: textWriter unindented too far")
return
}
w.ind--
}
func writeName(w *textWriter, props *Properties) error {
if _, err := w.WriteString(props.OrigName); err != nil {
return err
}
if props.Wire != "group" {
return w.WriteByte(':')
}
return nil
}
var (
messageSetType = reflect.TypeOf((*MessageSet)(nil)).Elem()
)
// raw is the interface satisfied by RawMessage.
type raw interface {
Bytes() []byte
}
func writeStruct(w *textWriter, sv reflect.Value) error {
if sv.Type() == messageSetType {
return writeMessageSet(w, sv.Addr().Interface().(*MessageSet))
}
st := sv.Type()
sprops := GetProperties(st)
for i := 0; i < sv.NumField(); i++ {
fv := sv.Field(i)
props := sprops.Prop[i]
name := st.Field(i).Name
if strings.HasPrefix(name, "XXX_") {
// There are two XXX_ fields:
// XXX_unrecognized []byte
// XXX_extensions map[int32]proto.Extension
// The first is handled here;
// the second is handled at the bottom of this function.
if name == "XXX_unrecognized" && !fv.IsNil() {
if err := writeUnknownStruct(w, fv.Interface().([]byte)); err != nil {
return err
}
}
continue
}
if fv.Kind() == reflect.Ptr && fv.IsNil() {
// Field not filled in. This could be an optional field or
// a required field that wasn't filled in. Either way, there
// isn't anything we can show for it.
continue
}
if fv.Kind() == reflect.Slice && fv.IsNil() {
// Repeated field that is empty, or a bytes field that is unused.
continue
}
if props.Repeated && fv.Kind() == reflect.Slice {
// Repeated field.
for j := 0; j < fv.Len(); j++ {
if err := writeName(w, props); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
v := fv.Index(j)
if v.Kind() == reflect.Ptr && v.IsNil() {
// A nil message in a repeated field is not valid,
// but we can handle that more gracefully than panicking.
if _, err := w.Write([]byte("<nil>\n")); err != nil {
return err
}
continue
}
if err := writeAny(w, v, props); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
continue
}
if fv.Kind() == reflect.Map {
// Map fields are rendered as a repeated struct with key/value fields.
keys := fv.MapKeys() // TODO: should we sort these for deterministic output?
sort.Sort(mapKeys(keys))
for _, key := range keys {
val := fv.MapIndex(key)
if err := writeName(w, props); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
// open struct
if err := w.WriteByte('<'); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte('\n'); err != nil {
return err
}
}
w.indent()
// key
if _, err := w.WriteString("key:"); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if err := writeAny(w, key, props.mkeyprop); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
// nil values aren't legal, but we can avoid panicking because of them.
if val.Kind() != reflect.Ptr || !val.IsNil() {
// value
if _, err := w.WriteString("value:"); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if err := writeAny(w, val, props.mvalprop); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
// close struct
w.unindent()
if err := w.WriteByte('>'); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
continue
}
if props.proto3 && fv.Kind() == reflect.Slice && fv.Len() == 0 {
// empty bytes field
continue
}
if fv.Kind() != reflect.Ptr && fv.Kind() != reflect.Slice {
// proto3 non-repeated scalar field; skip if zero value
if isProto3Zero(fv) {
continue
}
}
if err := writeName(w, props); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if b, ok := fv.Interface().(raw); ok {
if err := writeRaw(w, b.Bytes()); err != nil {
return err
}
continue
}
// Enums have a String method, so writeAny will work fine.
if err := writeAny(w, fv, props); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
}
// Extensions (the XXX_extensions field).
pv := sv.Addr()
if pv.Type().Implements(extendableProtoType) {
if err := writeExtensions(w, pv); err != nil {
return err
}
}
return nil
}
// writeRaw writes an uninterpreted raw message.
func writeRaw(w *textWriter, b []byte) error {
if err := w.WriteByte('<'); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte('\n'); err != nil {
return err
}
}
w.indent()
if err := writeUnknownStruct(w, b); err != nil {
return err
}
w.unindent()
if err := w.WriteByte('>'); err != nil {
return err
}
return nil
}
// writeAny writes an arbitrary field.
func writeAny(w *textWriter, v reflect.Value, props *Properties) error {
v = reflect.Indirect(v)
// Floats have special cases.
if v.Kind() == reflect.Float32 || v.Kind() == reflect.Float64 {
x := v.Float()
var b []byte
switch {
case math.IsInf(x, 1):
b = posInf
case math.IsInf(x, -1):
b = negInf
case math.IsNaN(x):
b = nan
}
if b != nil {
_, err := w.Write(b)
return err
}
// Other values are handled below.
}
// We don't attempt to serialise every possible value type; only those
// that can occur in protocol buffers.
switch v.Kind() {
case reflect.Slice:
// Should only be a []byte; repeated fields are handled in writeStruct.
if err := writeString(w, string(v.Interface().([]byte))); err != nil {
return err
}
case reflect.String:
if err := writeString(w, v.String()); err != nil {
return err
}
case reflect.Struct:
// Required/optional group/message.
var bra, ket byte = '<', '>'
if props != nil && props.Wire == "group" {
bra, ket = '{', '}'
}
if err := w.WriteByte(bra); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte('\n'); err != nil {
return err
}
}
w.indent()
if tm, ok := v.Interface().(encoding.TextMarshaler); ok {
text, err := tm.MarshalText()
if err != nil {
return err
}
if _, err = w.Write(text); err != nil {
return err
}
} else if err := writeStruct(w, v); err != nil {
return err
}
w.unindent()
if err := w.WriteByte(ket); err != nil {
return err
}
default:
_, err := fmt.Fprint(w, v.Interface())
return err
}
return nil
}
// equivalent to C's isprint.
func isprint(c byte) bool {
return c >= 0x20 && c < 0x7f
}
// writeString writes a string in the protocol buffer text format.
// It is similar to strconv.Quote except we don't use Go escape sequences,
// we treat the string as a byte sequence, and we use octal escapes.
// These differences are to maintain interoperability with the other
// languages' implementations of the text format.
func writeString(w *textWriter, s string) error {
// use WriteByte here to get any needed indent
if err := w.WriteByte('"'); err != nil {
return err
}
// Loop over the bytes, not the runes.
for i := 0; i < len(s); i++ {
var err error
// Divergence from C++: we don't escape apostrophes.
// There's no need to escape them, and the C++ parser
// copes with a naked apostrophe.
switch c := s[i]; c {
case '\n':
_, err = w.w.Write(backslashN)
case '\r':
_, err = w.w.Write(backslashR)
case '\t':
_, err = w.w.Write(backslashT)
case '"':
_, err = w.w.Write(backslashDQ)
case '\\':
_, err = w.w.Write(backslashBS)
default:
if isprint(c) {
err = w.w.WriteByte(c)
} else {
_, err = fmt.Fprintf(w.w, "\\%03o", c)
}
}
if err != nil {
return err
}
}
return w.WriteByte('"')
}
func writeMessageSet(w *textWriter, ms *MessageSet) error {
for _, item := range ms.Item {
id := *item.TypeId
if msd, ok := messageSetMap[id]; ok {
// Known message set type.
if _, err := fmt.Fprintf(w, "[%s]: <\n", msd.name); err != nil {
return err
}
w.indent()
pb := reflect.New(msd.t.Elem())
if err := Unmarshal(item.Message, pb.Interface().(Message)); err != nil {
if _, err := fmt.Fprintf(w, "/* bad message: %v */\n", err); err != nil {
return err
}
} else {
if err := writeStruct(w, pb.Elem()); err != nil {
return err
}
}
} else {
// Unknown type.
if _, err := fmt.Fprintf(w, "[%d]: <\n", id); err != nil {
return err
}
w.indent()
if err := writeUnknownStruct(w, item.Message); err != nil {
return err
}
}
w.unindent()
if _, err := w.Write(gtNewline); err != nil {
return err
}
}
return nil
}
func writeUnknownStruct(w *textWriter, data []byte) (err error) {
if !w.compact {
if _, err := fmt.Fprintf(w, "/* %d unknown bytes */\n", len(data)); err != nil {
return err
}
}
b := NewBuffer(data)
for b.index < len(b.buf) {
x, err := b.DecodeVarint()
if err != nil {
_, err := fmt.Fprintf(w, "/* %v */\n", err)
return err
}
wire, tag := x&7, x>>3
if wire == WireEndGroup {
w.unindent()
if _, err := w.Write(endBraceNewline); err != nil {
return err
}
continue
}
if _, err := fmt.Fprint(w, tag); err != nil {
return err
}
if wire != WireStartGroup {
if err := w.WriteByte(':'); err != nil {
return err
}
}
if !w.compact || wire == WireStartGroup {
if err := w.WriteByte(' '); err != nil {
return err
}
}
switch wire {
case WireBytes:
buf, e := b.DecodeRawBytes(false)
if e == nil {
_, err = fmt.Fprintf(w, "%q", buf)
} else {
_, err = fmt.Fprintf(w, "/* %v */", e)
}
case WireFixed32:
x, err = b.DecodeFixed32()
err = writeUnknownInt(w, x, err)
case WireFixed64:
x, err = b.DecodeFixed64()
err = writeUnknownInt(w, x, err)
case WireStartGroup:
err = w.WriteByte('{')
w.indent()
case WireVarint:
x, err = b.DecodeVarint()
err = writeUnknownInt(w, x, err)
default:
_, err = fmt.Fprintf(w, "/* unknown wire type %d */", wire)
}
if err != nil {
return err
}
if err = w.WriteByte('\n'); err != nil {
return err
}
}
return nil
}
func writeUnknownInt(w *textWriter, x uint64, err error) error {
if err == nil {
_, err = fmt.Fprint(w, x)
} else {
_, err = fmt.Fprintf(w, "/* %v */", err)
}
return err
}
type int32Slice []int32
func (s int32Slice) Len() int { return len(s) }
func (s int32Slice) Less(i, j int) bool { return s[i] < s[j] }
func (s int32Slice) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
// writeExtensions writes all the extensions in pv.
// pv is assumed to be a pointer to a protocol message struct that is extendable.
func writeExtensions(w *textWriter, pv reflect.Value) error {
emap := extensionMaps[pv.Type().Elem()]
ep := pv.Interface().(extendableProto)
// Order the extensions by ID.
// This isn't strictly necessary, but it will give us
// canonical output, which will also make testing easier.
m := ep.ExtensionMap()
ids := make([]int32, 0, len(m))
for id := range m {
ids = append(ids, id)
}
sort.Sort(int32Slice(ids))
for _, extNum := range ids {
ext := m[extNum]
var desc *ExtensionDesc
if emap != nil {
desc = emap[extNum]
}
if desc == nil {
// Unknown extension.
if err := writeUnknownStruct(w, ext.enc); err != nil {
return err
}
continue
}
pb, err := GetExtension(ep, desc)
if err != nil {
return fmt.Errorf("failed getting extension: %v", err)
}
// Repeated extensions will appear as a slice.
if !desc.repeated() {
if err := writeExtension(w, desc.Name, pb); err != nil {
return err
}
} else {
v := reflect.ValueOf(pb)
for i := 0; i < v.Len(); i++ {
if err := writeExtension(w, desc.Name, v.Index(i).Interface()); err != nil {
return err
}
}
}
}
return nil
}
func writeExtension(w *textWriter, name string, pb interface{}) error {
if _, err := fmt.Fprintf(w, "[%s]:", name); err != nil {
return err
}
if !w.compact {
if err := w.WriteByte(' '); err != nil {
return err
}
}
if err := writeAny(w, reflect.ValueOf(pb), nil); err != nil {
return err
}
if err := w.WriteByte('\n'); err != nil {
return err
}
return nil
}
func (w *textWriter) writeIndent() {
if !w.complete {
return
}
remain := w.ind * 2
for remain > 0 {
n := remain
if n > len(spaces) {
n = len(spaces)
}
w.w.Write(spaces[:n])
remain -= n
}
w.complete = false
}
func marshalText(w io.Writer, pb Message, compact bool) error {
val := reflect.ValueOf(pb)
if pb == nil || val.IsNil() {
w.Write([]byte("<nil>"))
return nil
}
var bw *bufio.Writer
ww, ok := w.(writer)
if !ok {
bw = bufio.NewWriter(w)
ww = bw
}
aw := &textWriter{
w: ww,
complete: true,
compact: compact,
}
if tm, ok := pb.(encoding.TextMarshaler); ok {
text, err := tm.MarshalText()
if err != nil {
return err
}
if _, err = aw.Write(text); err != nil {
return err
}
if bw != nil {
return bw.Flush()
}
return nil
}
// Dereference the received pointer so we don't have outer < and >.
v := reflect.Indirect(val)
if err := writeStruct(aw, v); err != nil {
return err
}
if bw != nil {
return bw.Flush()
}
return nil
}
// MarshalText writes a given protocol buffer in text format.
// The only errors returned are from w.
func MarshalText(w io.Writer, pb Message) error {
return marshalText(w, pb, false)
}
// MarshalTextString is the same as MarshalText, but returns the string directly.
func MarshalTextString(pb Message) string {
var buf bytes.Buffer
marshalText(&buf, pb, false)
return buf.String()
}
// CompactText writes a given protocol buffer in compact text format (one line).
func CompactText(w io.Writer, pb Message) error { return marshalText(w, pb, true) }
// CompactTextString is the same as CompactText, but returns the string directly.
func CompactTextString(pb Message) string {
var buf bytes.Buffer
marshalText(&buf, pb, true)
return buf.String()
}

772
Godeps/_workspace/src/github.com/golang/protobuf/proto/text_parser.go generated vendored Normal file
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@ -0,0 +1,772 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto
// Functions for parsing the Text protocol buffer format.
// TODO: message sets.
import (
"encoding"
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"unicode/utf8"
)
type ParseError struct {
Message string
Line int // 1-based line number
Offset int // 0-based byte offset from start of input
}
func (p *ParseError) Error() string {
if p.Line == 1 {
// show offset only for first line
return fmt.Sprintf("line 1.%d: %v", p.Offset, p.Message)
}
return fmt.Sprintf("line %d: %v", p.Line, p.Message)
}
type token struct {
value string
err *ParseError
line int // line number
offset int // byte number from start of input, not start of line
unquoted string // the unquoted version of value, if it was a quoted string
}
func (t *token) String() string {
if t.err == nil {
return fmt.Sprintf("%q (line=%d, offset=%d)", t.value, t.line, t.offset)
}
return fmt.Sprintf("parse error: %v", t.err)
}
type textParser struct {
s string // remaining input
done bool // whether the parsing is finished (success or error)
backed bool // whether back() was called
offset, line int
cur token
}
func newTextParser(s string) *textParser {
p := new(textParser)
p.s = s
p.line = 1
p.cur.line = 1
return p
}
func (p *textParser) errorf(format string, a ...interface{}) *ParseError {
pe := &ParseError{fmt.Sprintf(format, a...), p.cur.line, p.cur.offset}
p.cur.err = pe
p.done = true
return pe
}
// Numbers and identifiers are matched by [-+._A-Za-z0-9]
func isIdentOrNumberChar(c byte) bool {
switch {
case 'A' <= c && c <= 'Z', 'a' <= c && c <= 'z':
return true
case '0' <= c && c <= '9':
return true
}
switch c {
case '-', '+', '.', '_':
return true
}
return false
}
func isWhitespace(c byte) bool {
switch c {
case ' ', '\t', '\n', '\r':
return true
}
return false
}
func (p *textParser) skipWhitespace() {
i := 0
for i < len(p.s) && (isWhitespace(p.s[i]) || p.s[i] == '#') {
if p.s[i] == '#' {
// comment; skip to end of line or input
for i < len(p.s) && p.s[i] != '\n' {
i++
}
if i == len(p.s) {
break
}
}
if p.s[i] == '\n' {
p.line++
}
i++
}
p.offset += i
p.s = p.s[i:len(p.s)]
if len(p.s) == 0 {
p.done = true
}
}
func (p *textParser) advance() {
// Skip whitespace
p.skipWhitespace()
if p.done {
return
}
// Start of non-whitespace
p.cur.err = nil
p.cur.offset, p.cur.line = p.offset, p.line
p.cur.unquoted = ""
switch p.s[0] {
case '<', '>', '{', '}', ':', '[', ']', ';', ',':
// Single symbol
p.cur.value, p.s = p.s[0:1], p.s[1:len(p.s)]
case '"', '\'':
// Quoted string
i := 1
for i < len(p.s) && p.s[i] != p.s[0] && p.s[i] != '\n' {
if p.s[i] == '\\' && i+1 < len(p.s) {
// skip escaped char
i++
}
i++
}
if i >= len(p.s) || p.s[i] != p.s[0] {
p.errorf("unmatched quote")
return
}
unq, err := unquoteC(p.s[1:i], rune(p.s[0]))
if err != nil {
p.errorf("invalid quoted string %s: %v", p.s[0:i+1], err)
return
}
p.cur.value, p.s = p.s[0:i+1], p.s[i+1:len(p.s)]
p.cur.unquoted = unq
default:
i := 0
for i < len(p.s) && isIdentOrNumberChar(p.s[i]) {
i++
}
if i == 0 {
p.errorf("unexpected byte %#x", p.s[0])
return
}
p.cur.value, p.s = p.s[0:i], p.s[i:len(p.s)]
}
p.offset += len(p.cur.value)
}
var (
errBadUTF8 = errors.New("proto: bad UTF-8")
errBadHex = errors.New("proto: bad hexadecimal")
)
func unquoteC(s string, quote rune) (string, error) {
// This is based on C++'s tokenizer.cc.
// Despite its name, this is *not* parsing C syntax.
// For instance, "\0" is an invalid quoted string.
// Avoid allocation in trivial cases.
simple := true
for _, r := range s {
if r == '\\' || r == quote {
simple = false
break
}
}
if simple {
return s, nil
}
buf := make([]byte, 0, 3*len(s)/2)
for len(s) > 0 {
r, n := utf8.DecodeRuneInString(s)
if r == utf8.RuneError && n == 1 {
return "", errBadUTF8
}
s = s[n:]
if r != '\\' {
if r < utf8.RuneSelf {
buf = append(buf, byte(r))
} else {
buf = append(buf, string(r)...)
}
continue
}
ch, tail, err := unescape(s)
if err != nil {
return "", err
}
buf = append(buf, ch...)
s = tail
}
return string(buf), nil
}
func unescape(s string) (ch string, tail string, err error) {
r, n := utf8.DecodeRuneInString(s)
if r == utf8.RuneError && n == 1 {
return "", "", errBadUTF8
}
s = s[n:]
switch r {
case 'a':
return "\a", s, nil
case 'b':
return "\b", s, nil
case 'f':
return "\f", s, nil
case 'n':
return "\n", s, nil
case 'r':
return "\r", s, nil
case 't':
return "\t", s, nil
case 'v':
return "\v", s, nil
case '?':
return "?", s, nil // trigraph workaround
case '\'', '"', '\\':
return string(r), s, nil
case '0', '1', '2', '3', '4', '5', '6', '7', 'x', 'X':
if len(s) < 2 {
return "", "", fmt.Errorf(`\%c requires 2 following digits`, r)
}
base := 8
ss := s[:2]
s = s[2:]
if r == 'x' || r == 'X' {
base = 16
} else {
ss = string(r) + ss
}
i, err := strconv.ParseUint(ss, base, 8)
if err != nil {
return "", "", err
}
return string([]byte{byte(i)}), s, nil
case 'u', 'U':
n := 4
if r == 'U' {
n = 8
}
if len(s) < n {
return "", "", fmt.Errorf(`\%c requires %d digits`, r, n)
}
bs := make([]byte, n/2)
for i := 0; i < n; i += 2 {
a, ok1 := unhex(s[i])
b, ok2 := unhex(s[i+1])
if !ok1 || !ok2 {
return "", "", errBadHex
}
bs[i/2] = a<<4 | b
}
s = s[n:]
return string(bs), s, nil
}
return "", "", fmt.Errorf(`unknown escape \%c`, r)
}
// Adapted from src/pkg/strconv/quote.go.
func unhex(b byte) (v byte, ok bool) {
switch {
case '0' <= b && b <= '9':
return b - '0', true
case 'a' <= b && b <= 'f':
return b - 'a' + 10, true
case 'A' <= b && b <= 'F':
return b - 'A' + 10, true
}
return 0, false
}
// Back off the parser by one token. Can only be done between calls to next().
// It makes the next advance() a no-op.
func (p *textParser) back() { p.backed = true }
// Advances the parser and returns the new current token.
func (p *textParser) next() *token {
if p.backed || p.done {
p.backed = false
return &p.cur
}
p.advance()
if p.done {
p.cur.value = ""
} else if len(p.cur.value) > 0 && p.cur.value[0] == '"' {
// Look for multiple quoted strings separated by whitespace,
// and concatenate them.
cat := p.cur
for {
p.skipWhitespace()
if p.done || p.s[0] != '"' {
break
}
p.advance()
if p.cur.err != nil {
return &p.cur
}
cat.value += " " + p.cur.value
cat.unquoted += p.cur.unquoted
}
p.done = false // parser may have seen EOF, but we want to return cat
p.cur = cat
}
return &p.cur
}
func (p *textParser) consumeToken(s string) error {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value != s {
p.back()
return p.errorf("expected %q, found %q", s, tok.value)
}
return nil
}
// Return a RequiredNotSetError indicating which required field was not set.
func (p *textParser) missingRequiredFieldError(sv reflect.Value) *RequiredNotSetError {
st := sv.Type()
sprops := GetProperties(st)
for i := 0; i < st.NumField(); i++ {
if !isNil(sv.Field(i)) {
continue
}
props := sprops.Prop[i]
if props.Required {
return &RequiredNotSetError{fmt.Sprintf("%v.%v", st, props.OrigName)}
}
}
return &RequiredNotSetError{fmt.Sprintf("%v.<unknown field name>", st)} // should not happen
}
// Returns the index in the struct for the named field, as well as the parsed tag properties.
func structFieldByName(st reflect.Type, name string) (int, *Properties, bool) {
sprops := GetProperties(st)
i, ok := sprops.decoderOrigNames[name]
if ok {
return i, sprops.Prop[i], true
}
return -1, nil, false
}
// Consume a ':' from the input stream (if the next token is a colon),
// returning an error if a colon is needed but not present.
func (p *textParser) checkForColon(props *Properties, typ reflect.Type) *ParseError {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value != ":" {
// Colon is optional when the field is a group or message.
needColon := true
switch props.Wire {
case "group":
needColon = false
case "bytes":
// A "bytes" field is either a message, a string, or a repeated field;
// those three become *T, *string and []T respectively, so we can check for
// this field being a pointer to a non-string.
if typ.Kind() == reflect.Ptr {
// *T or *string
if typ.Elem().Kind() == reflect.String {
break
}
} else if typ.Kind() == reflect.Slice {
// []T or []*T
if typ.Elem().Kind() != reflect.Ptr {
break
}
} else if typ.Kind() == reflect.String {
// The proto3 exception is for a string field,
// which requires a colon.
break
}
needColon = false
}
if needColon {
return p.errorf("expected ':', found %q", tok.value)
}
p.back()
}
return nil
}
func (p *textParser) readStruct(sv reflect.Value, terminator string) error {
st := sv.Type()
reqCount := GetProperties(st).reqCount
var reqFieldErr error
fieldSet := make(map[string]bool)
// A struct is a sequence of "name: value", terminated by one of
// '>' or '}', or the end of the input. A name may also be
// "[extension]".
for {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value == terminator {
break
}
if tok.value == "[" {
// Looks like an extension.
//
// TODO: Check whether we need to handle
// namespace rooted names (e.g. ".something.Foo").
tok = p.next()
if tok.err != nil {
return tok.err
}
var desc *ExtensionDesc
// This could be faster, but it's functional.
// TODO: Do something smarter than a linear scan.
for _, d := range RegisteredExtensions(reflect.New(st).Interface().(Message)) {
if d.Name == tok.value {
desc = d
break
}
}
if desc == nil {
return p.errorf("unrecognized extension %q", tok.value)
}
// Check the extension terminator.
tok = p.next()
if tok.err != nil {
return tok.err
}
if tok.value != "]" {
return p.errorf("unrecognized extension terminator %q", tok.value)
}
props := &Properties{}
props.Parse(desc.Tag)
typ := reflect.TypeOf(desc.ExtensionType)
if err := p.checkForColon(props, typ); err != nil {
return err
}
rep := desc.repeated()
// Read the extension structure, and set it in
// the value we're constructing.
var ext reflect.Value
if !rep {
ext = reflect.New(typ).Elem()
} else {
ext = reflect.New(typ.Elem()).Elem()
}
if err := p.readAny(ext, props); err != nil {
if _, ok := err.(*RequiredNotSetError); !ok {
return err
}
reqFieldErr = err
}
ep := sv.Addr().Interface().(extendableProto)
if !rep {
SetExtension(ep, desc, ext.Interface())
} else {
old, err := GetExtension(ep, desc)
var sl reflect.Value
if err == nil {
sl = reflect.ValueOf(old) // existing slice
} else {
sl = reflect.MakeSlice(typ, 0, 1)
}
sl = reflect.Append(sl, ext)
SetExtension(ep, desc, sl.Interface())
}
} else {
// This is a normal, non-extension field.
name := tok.value
fi, props, ok := structFieldByName(st, name)
if !ok {
return p.errorf("unknown field name %q in %v", name, st)
}
dst := sv.Field(fi)
if dst.Kind() == reflect.Map {
// Consume any colon.
if err := p.checkForColon(props, dst.Type()); err != nil {
return err
}
// Construct the map if it doesn't already exist.
if dst.IsNil() {
dst.Set(reflect.MakeMap(dst.Type()))
}
key := reflect.New(dst.Type().Key()).Elem()
val := reflect.New(dst.Type().Elem()).Elem()
// The map entry should be this sequence of tokens:
// < key : KEY value : VALUE >
// Technically the "key" and "value" could come in any order,
// but in practice they won't.
tok := p.next()
var terminator string
switch tok.value {
case "<":
terminator = ">"
case "{":
terminator = "}"
default:
return p.errorf("expected '{' or '<', found %q", tok.value)
}
if err := p.consumeToken("key"); err != nil {
return err
}
if err := p.consumeToken(":"); err != nil {
return err
}
if err := p.readAny(key, props.mkeyprop); err != nil {
return err
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
if err := p.consumeToken("value"); err != nil {
return err
}
if err := p.checkForColon(props.mvalprop, dst.Type().Elem()); err != nil {
return err
}
if err := p.readAny(val, props.mvalprop); err != nil {
return err
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
if err := p.consumeToken(terminator); err != nil {
return err
}
dst.SetMapIndex(key, val)
continue
}
// Check that it's not already set if it's not a repeated field.
if !props.Repeated && fieldSet[name] {
return p.errorf("non-repeated field %q was repeated", name)
}
if err := p.checkForColon(props, st.Field(fi).Type); err != nil {
return err
}
// Parse into the field.
fieldSet[name] = true
if err := p.readAny(dst, props); err != nil {
if _, ok := err.(*RequiredNotSetError); !ok {
return err
}
reqFieldErr = err
} else if props.Required {
reqCount--
}
}
if err := p.consumeOptionalSeparator(); err != nil {
return err
}
}
if reqCount > 0 {
return p.missingRequiredFieldError(sv)
}
return reqFieldErr
}
// consumeOptionalSeparator consumes an optional semicolon or comma.
// It is used in readStruct to provide backward compatibility.
func (p *textParser) consumeOptionalSeparator() error {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value != ";" && tok.value != "," {
p.back()
}
return nil
}
func (p *textParser) readAny(v reflect.Value, props *Properties) error {
tok := p.next()
if tok.err != nil {
return tok.err
}
if tok.value == "" {
return p.errorf("unexpected EOF")
}
switch fv := v; fv.Kind() {
case reflect.Slice:
at := v.Type()
if at.Elem().Kind() == reflect.Uint8 {
// Special case for []byte
if tok.value[0] != '"' && tok.value[0] != '\'' {
// Deliberately written out here, as the error after
// this switch statement would write "invalid []byte: ...",
// which is not as user-friendly.
return p.errorf("invalid string: %v", tok.value)
}
bytes := []byte(tok.unquoted)
fv.Set(reflect.ValueOf(bytes))
return nil
}
// Repeated field. May already exist.
flen := fv.Len()
if flen == fv.Cap() {
nav := reflect.MakeSlice(at, flen, 2*flen+1)
reflect.Copy(nav, fv)
fv.Set(nav)
}
fv.SetLen(flen + 1)
// Read one.
p.back()
return p.readAny(fv.Index(flen), props)
case reflect.Bool:
// Either "true", "false", 1 or 0.
switch tok.value {
case "true", "1":
fv.SetBool(true)
return nil
case "false", "0":
fv.SetBool(false)
return nil
}
case reflect.Float32, reflect.Float64:
v := tok.value
// Ignore 'f' for compatibility with output generated by C++, but don't
// remove 'f' when the value is "-inf" or "inf".
if strings.HasSuffix(v, "f") && tok.value != "-inf" && tok.value != "inf" {
v = v[:len(v)-1]
}
if f, err := strconv.ParseFloat(v, fv.Type().Bits()); err == nil {
fv.SetFloat(f)
return nil
}
case reflect.Int32:
if x, err := strconv.ParseInt(tok.value, 0, 32); err == nil {
fv.SetInt(x)
return nil
}
if len(props.Enum) == 0 {
break
}
m, ok := enumValueMaps[props.Enum]
if !ok {
break
}
x, ok := m[tok.value]
if !ok {
break
}
fv.SetInt(int64(x))
return nil
case reflect.Int64:
if x, err := strconv.ParseInt(tok.value, 0, 64); err == nil {
fv.SetInt(x)
return nil
}
case reflect.Ptr:
// A basic field (indirected through pointer), or a repeated message/group
p.back()
fv.Set(reflect.New(fv.Type().Elem()))
return p.readAny(fv.Elem(), props)
case reflect.String:
if tok.value[0] == '"' || tok.value[0] == '\'' {
fv.SetString(tok.unquoted)
return nil
}
case reflect.Struct:
var terminator string
switch tok.value {
case "{":
terminator = "}"
case "<":
terminator = ">"
default:
return p.errorf("expected '{' or '<', found %q", tok.value)
}
// TODO: Handle nested messages which implement encoding.TextUnmarshaler.
return p.readStruct(fv, terminator)
case reflect.Uint32:
if x, err := strconv.ParseUint(tok.value, 0, 32); err == nil {
fv.SetUint(uint64(x))
return nil
}
case reflect.Uint64:
if x, err := strconv.ParseUint(tok.value, 0, 64); err == nil {
fv.SetUint(x)
return nil
}
}
return p.errorf("invalid %v: %v", v.Type(), tok.value)
}
// UnmarshalText reads a protocol buffer in Text format. UnmarshalText resets pb
// before starting to unmarshal, so any existing data in pb is always removed.
// If a required field is not set and no other error occurs,
// UnmarshalText returns *RequiredNotSetError.
func UnmarshalText(s string, pb Message) error {
if um, ok := pb.(encoding.TextUnmarshaler); ok {
err := um.UnmarshalText([]byte(s))
return err
}
pb.Reset()
v := reflect.ValueOf(pb)
if pe := newTextParser(s).readStruct(v.Elem(), ""); pe != nil {
return pe
}
return nil
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"math"
"reflect"
"testing"
. "github.com/golang/protobuf/proto"
proto3pb "github.com/golang/protobuf/proto/proto3_proto"
. "github.com/golang/protobuf/proto/testdata"
)
type UnmarshalTextTest struct {
in string
err string // if "", no error expected
out *MyMessage
}
func buildExtStructTest(text string) UnmarshalTextTest {
msg := &MyMessage{
Count: Int32(42),
}
SetExtension(msg, E_Ext_More, &Ext{
Data: String("Hello, world!"),
})
return UnmarshalTextTest{in: text, out: msg}
}
func buildExtDataTest(text string) UnmarshalTextTest {
msg := &MyMessage{
Count: Int32(42),
}
SetExtension(msg, E_Ext_Text, String("Hello, world!"))
SetExtension(msg, E_Ext_Number, Int32(1729))
return UnmarshalTextTest{in: text, out: msg}
}
func buildExtRepStringTest(text string) UnmarshalTextTest {
msg := &MyMessage{
Count: Int32(42),
}
if err := SetExtension(msg, E_Greeting, []string{"bula", "hola"}); err != nil {
panic(err)
}
return UnmarshalTextTest{in: text, out: msg}
}
var unMarshalTextTests = []UnmarshalTextTest{
// Basic
{
in: " count:42\n name:\"Dave\" ",
out: &MyMessage{
Count: Int32(42),
Name: String("Dave"),
},
},
// Empty quoted string
{
in: `count:42 name:""`,
out: &MyMessage{
Count: Int32(42),
Name: String(""),
},
},
// Quoted string concatenation
{
in: `count:42 name: "My name is "` + "\n" + `"elsewhere"`,
out: &MyMessage{
Count: Int32(42),
Name: String("My name is elsewhere"),
},
},
// Quoted string with escaped apostrophe
{
in: `count:42 name: "HOLIDAY - New Year\'s Day"`,
out: &MyMessage{
Count: Int32(42),
Name: String("HOLIDAY - New Year's Day"),
},
},
// Quoted string with single quote
{
in: `count:42 name: 'Roger "The Ramster" Ramjet'`,
out: &MyMessage{
Count: Int32(42),
Name: String(`Roger "The Ramster" Ramjet`),
},
},
// Quoted string with all the accepted special characters from the C++ test
{
in: `count:42 name: ` + "\"\\\"A string with \\' characters \\n and \\r newlines and \\t tabs and \\001 slashes \\\\ and multiple spaces\"",
out: &MyMessage{
Count: Int32(42),
Name: String("\"A string with ' characters \n and \r newlines and \t tabs and \001 slashes \\ and multiple spaces"),
},
},
// Quoted string with quoted backslash
{
in: `count:42 name: "\\'xyz"`,
out: &MyMessage{
Count: Int32(42),
Name: String(`\'xyz`),
},
},
// Quoted string with UTF-8 bytes.
{
in: "count:42 name: '\303\277\302\201\xAB'",
out: &MyMessage{
Count: Int32(42),
Name: String("\303\277\302\201\xAB"),
},
},
// Bad quoted string
{
in: `inner: < host: "\0" >` + "\n",
err: `line 1.15: invalid quoted string "\0": \0 requires 2 following digits`,
},
// Number too large for int64
{
in: "count: 1 others { key: 123456789012345678901 }",
err: "line 1.23: invalid int64: 123456789012345678901",
},
// Number too large for int32
{
in: "count: 1234567890123",
err: "line 1.7: invalid int32: 1234567890123",
},
// Number in hexadecimal
{
in: "count: 0x2beef",
out: &MyMessage{
Count: Int32(0x2beef),
},
},
// Number in octal
{
in: "count: 024601",
out: &MyMessage{
Count: Int32(024601),
},
},
// Floating point number with "f" suffix
{
in: "count: 4 others:< weight: 17.0f >",
out: &MyMessage{
Count: Int32(4),
Others: []*OtherMessage{
{
Weight: Float32(17),
},
},
},
},
// Floating point positive infinity
{
in: "count: 4 bigfloat: inf",
out: &MyMessage{
Count: Int32(4),
Bigfloat: Float64(math.Inf(1)),
},
},
// Floating point negative infinity
{
in: "count: 4 bigfloat: -inf",
out: &MyMessage{
Count: Int32(4),
Bigfloat: Float64(math.Inf(-1)),
},
},
// Number too large for float32
{
in: "others:< weight: 12345678901234567890123456789012345678901234567890 >",
err: "line 1.17: invalid float32: 12345678901234567890123456789012345678901234567890",
},
// Number posing as a quoted string
{
in: `inner: < host: 12 >` + "\n",
err: `line 1.15: invalid string: 12`,
},
// Quoted string posing as int32
{
in: `count: "12"`,
err: `line 1.7: invalid int32: "12"`,
},
// Quoted string posing a float32
{
in: `others:< weight: "17.4" >`,
err: `line 1.17: invalid float32: "17.4"`,
},
// Enum
{
in: `count:42 bikeshed: BLUE`,
out: &MyMessage{
Count: Int32(42),
Bikeshed: MyMessage_BLUE.Enum(),
},
},
// Repeated field
{
in: `count:42 pet: "horsey" pet:"bunny"`,
out: &MyMessage{
Count: Int32(42),
Pet: []string{"horsey", "bunny"},
},
},
// Repeated message with/without colon and <>/{}
{
in: `count:42 others:{} others{} others:<> others:{}`,
out: &MyMessage{
Count: Int32(42),
Others: []*OtherMessage{
{},
{},
{},
{},
},
},
},
// Missing colon for inner message
{
in: `count:42 inner < host: "cauchy.syd" >`,
out: &MyMessage{
Count: Int32(42),
Inner: &InnerMessage{
Host: String("cauchy.syd"),
},
},
},
// Missing colon for string field
{
in: `name "Dave"`,
err: `line 1.5: expected ':', found "\"Dave\""`,
},
// Missing colon for int32 field
{
in: `count 42`,
err: `line 1.6: expected ':', found "42"`,
},
// Missing required field
{
in: `name: "Pawel"`,
err: `proto: required field "testdata.MyMessage.count" not set`,
out: &MyMessage{
Name: String("Pawel"),
},
},
// Repeated non-repeated field
{
in: `name: "Rob" name: "Russ"`,
err: `line 1.12: non-repeated field "name" was repeated`,
},
// Group
{
in: `count: 17 SomeGroup { group_field: 12 }`,
out: &MyMessage{
Count: Int32(17),
Somegroup: &MyMessage_SomeGroup{
GroupField: Int32(12),
},
},
},
// Semicolon between fields
{
in: `count:3;name:"Calvin"`,
out: &MyMessage{
Count: Int32(3),
Name: String("Calvin"),
},
},
// Comma between fields
{
in: `count:4,name:"Ezekiel"`,
out: &MyMessage{
Count: Int32(4),
Name: String("Ezekiel"),
},
},
// Extension
buildExtStructTest(`count: 42 [testdata.Ext.more]:<data:"Hello, world!" >`),
buildExtStructTest(`count: 42 [testdata.Ext.more] {data:"Hello, world!"}`),
buildExtDataTest(`count: 42 [testdata.Ext.text]:"Hello, world!" [testdata.Ext.number]:1729`),
buildExtRepStringTest(`count: 42 [testdata.greeting]:"bula" [testdata.greeting]:"hola"`),
// Big all-in-one
{
in: "count:42 # Meaning\n" +
`name:"Dave" ` +
`quote:"\"I didn't want to go.\"" ` +
`pet:"bunny" ` +
`pet:"kitty" ` +
`pet:"horsey" ` +
`inner:<` +
` host:"footrest.syd" ` +
` port:7001 ` +
` connected:true ` +
`> ` +
`others:<` +
` key:3735928559 ` +
` value:"\x01A\a\f" ` +
`> ` +
`others:<` +
" weight:58.9 # Atomic weight of Co\n" +
` inner:<` +
` host:"lesha.mtv" ` +
` port:8002 ` +
` >` +
`>`,
out: &MyMessage{
Count: Int32(42),
Name: String("Dave"),
Quote: String(`"I didn't want to go."`),
Pet: []string{"bunny", "kitty", "horsey"},
Inner: &InnerMessage{
Host: String("footrest.syd"),
Port: Int32(7001),
Connected: Bool(true),
},
Others: []*OtherMessage{
{
Key: Int64(3735928559),
Value: []byte{0x1, 'A', '\a', '\f'},
},
{
Weight: Float32(58.9),
Inner: &InnerMessage{
Host: String("lesha.mtv"),
Port: Int32(8002),
},
},
},
},
},
}
func TestUnmarshalText(t *testing.T) {
for i, test := range unMarshalTextTests {
pb := new(MyMessage)
err := UnmarshalText(test.in, pb)
if test.err == "" {
// We don't expect failure.
if err != nil {
t.Errorf("Test %d: Unexpected error: %v", i, err)
} else if !reflect.DeepEqual(pb, test.out) {
t.Errorf("Test %d: Incorrect populated \nHave: %v\nWant: %v",
i, pb, test.out)
}
} else {
// We do expect failure.
if err == nil {
t.Errorf("Test %d: Didn't get expected error: %v", i, test.err)
} else if err.Error() != test.err {
t.Errorf("Test %d: Incorrect error.\nHave: %v\nWant: %v",
i, err.Error(), test.err)
} else if _, ok := err.(*RequiredNotSetError); ok && test.out != nil && !reflect.DeepEqual(pb, test.out) {
t.Errorf("Test %d: Incorrect populated \nHave: %v\nWant: %v",
i, pb, test.out)
}
}
}
}
func TestUnmarshalTextCustomMessage(t *testing.T) {
msg := &textMessage{}
if err := UnmarshalText("custom", msg); err != nil {
t.Errorf("Unexpected error from custom unmarshal: %v", err)
}
if UnmarshalText("not custom", msg) == nil {
t.Errorf("Didn't get expected error from custom unmarshal")
}
}
// Regression test; this caused a panic.
func TestRepeatedEnum(t *testing.T) {
pb := new(RepeatedEnum)
if err := UnmarshalText("color: RED", pb); err != nil {
t.Fatal(err)
}
exp := &RepeatedEnum{
Color: []RepeatedEnum_Color{RepeatedEnum_RED},
}
if !Equal(pb, exp) {
t.Errorf("Incorrect populated \nHave: %v\nWant: %v", pb, exp)
}
}
func TestProto3TextParsing(t *testing.T) {
m := new(proto3pb.Message)
const in = `name: "Wallace" true_scotsman: true`
want := &proto3pb.Message{
Name: "Wallace",
TrueScotsman: true,
}
if err := UnmarshalText(in, m); err != nil {
t.Fatal(err)
}
if !Equal(m, want) {
t.Errorf("\n got %v\nwant %v", m, want)
}
}
func TestMapParsing(t *testing.T) {
m := new(MessageWithMap)
const in = `name_mapping:<key:1234 value:"Feist"> name_mapping:<key:1 value:"Beatles">` +
`msg_mapping:<key:-4, value:<f: 2.0>,>` + // separating commas are okay
`msg_mapping<key:-2 value<f: 4.0>>` + // no colon after "value"
`byte_mapping:<key:true value:"so be it">`
want := &MessageWithMap{
NameMapping: map[int32]string{
1: "Beatles",
1234: "Feist",
},
MsgMapping: map[int64]*FloatingPoint{
-4: {F: Float64(2.0)},
-2: {F: Float64(4.0)},
},
ByteMapping: map[bool][]byte{
true: []byte("so be it"),
},
}
if err := UnmarshalText(in, m); err != nil {
t.Fatal(err)
}
if !Equal(m, want) {
t.Errorf("\n got %v\nwant %v", m, want)
}
}
var benchInput string
func init() {
benchInput = "count: 4\n"
for i := 0; i < 1000; i++ {
benchInput += "pet: \"fido\"\n"
}
// Check it is valid input.
pb := new(MyMessage)
err := UnmarshalText(benchInput, pb)
if err != nil {
panic("Bad benchmark input: " + err.Error())
}
}
func BenchmarkUnmarshalText(b *testing.B) {
pb := new(MyMessage)
for i := 0; i < b.N; i++ {
UnmarshalText(benchInput, pb)
}
b.SetBytes(int64(len(benchInput)))
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package proto_test
import (
"bytes"
"errors"
"io/ioutil"
"math"
"strings"
"testing"
"github.com/golang/protobuf/proto"
proto3pb "github.com/golang/protobuf/proto/proto3_proto"
pb "github.com/golang/protobuf/proto/testdata"
)
// textMessage implements the methods that allow it to marshal and unmarshal
// itself as text.
type textMessage struct {
}
func (*textMessage) MarshalText() ([]byte, error) {
return []byte("custom"), nil
}
func (*textMessage) UnmarshalText(bytes []byte) error {
if string(bytes) != "custom" {
return errors.New("expected 'custom'")
}
return nil
}
func (*textMessage) Reset() {}
func (*textMessage) String() string { return "" }
func (*textMessage) ProtoMessage() {}
func newTestMessage() *pb.MyMessage {
msg := &pb.MyMessage{
Count: proto.Int32(42),
Name: proto.String("Dave"),
Quote: proto.String(`"I didn't want to go."`),
Pet: []string{"bunny", "kitty", "horsey"},
Inner: &pb.InnerMessage{
Host: proto.String("footrest.syd"),
Port: proto.Int32(7001),
Connected: proto.Bool(true),
},
Others: []*pb.OtherMessage{
{
Key: proto.Int64(0xdeadbeef),
Value: []byte{1, 65, 7, 12},
},
{
Weight: proto.Float32(6.022),
Inner: &pb.InnerMessage{
Host: proto.String("lesha.mtv"),
Port: proto.Int32(8002),
},
},
},
Bikeshed: pb.MyMessage_BLUE.Enum(),
Somegroup: &pb.MyMessage_SomeGroup{
GroupField: proto.Int32(8),
},
// One normally wouldn't do this.
// This is an undeclared tag 13, as a varint (wire type 0) with value 4.
XXX_unrecognized: []byte{13<<3 | 0, 4},
}
ext := &pb.Ext{
Data: proto.String("Big gobs for big rats"),
}
if err := proto.SetExtension(msg, pb.E_Ext_More, ext); err != nil {
panic(err)
}
greetings := []string{"adg", "easy", "cow"}
if err := proto.SetExtension(msg, pb.E_Greeting, greetings); err != nil {
panic(err)
}
// Add an unknown extension. We marshal a pb.Ext, and fake the ID.
b, err := proto.Marshal(&pb.Ext{Data: proto.String("3G skiing")})
if err != nil {
panic(err)
}
b = append(proto.EncodeVarint(201<<3|proto.WireBytes), b...)
proto.SetRawExtension(msg, 201, b)
// Extensions can be plain fields, too, so let's test that.
b = append(proto.EncodeVarint(202<<3|proto.WireVarint), 19)
proto.SetRawExtension(msg, 202, b)
return msg
}
const text = `count: 42
name: "Dave"
quote: "\"I didn't want to go.\""
pet: "bunny"
pet: "kitty"
pet: "horsey"
inner: <
host: "footrest.syd"
port: 7001
connected: true
>
others: <
key: 3735928559
value: "\001A\007\014"
>
others: <
weight: 6.022
inner: <
host: "lesha.mtv"
port: 8002
>
>
bikeshed: BLUE
SomeGroup {
group_field: 8
}
/* 2 unknown bytes */
13: 4
[testdata.Ext.more]: <
data: "Big gobs for big rats"
>
[testdata.greeting]: "adg"
[testdata.greeting]: "easy"
[testdata.greeting]: "cow"
/* 13 unknown bytes */
201: "\t3G skiing"
/* 3 unknown bytes */
202: 19
`
func TestMarshalText(t *testing.T) {
buf := new(bytes.Buffer)
if err := proto.MarshalText(buf, newTestMessage()); err != nil {
t.Fatalf("proto.MarshalText: %v", err)
}
s := buf.String()
if s != text {
t.Errorf("Got:\n===\n%v===\nExpected:\n===\n%v===\n", s, text)
}
}
func TestMarshalTextCustomMessage(t *testing.T) {
buf := new(bytes.Buffer)
if err := proto.MarshalText(buf, &textMessage{}); err != nil {
t.Fatalf("proto.MarshalText: %v", err)
}
s := buf.String()
if s != "custom" {
t.Errorf("Got %q, expected %q", s, "custom")
}
}
func TestMarshalTextNil(t *testing.T) {
want := "<nil>"
tests := []proto.Message{nil, (*pb.MyMessage)(nil)}
for i, test := range tests {
buf := new(bytes.Buffer)
if err := proto.MarshalText(buf, test); err != nil {
t.Fatal(err)
}
if got := buf.String(); got != want {
t.Errorf("%d: got %q want %q", i, got, want)
}
}
}
func TestMarshalTextUnknownEnum(t *testing.T) {
// The Color enum only specifies values 0-2.
m := &pb.MyMessage{Bikeshed: pb.MyMessage_Color(3).Enum()}
got := m.String()
const want = `bikeshed:3 `
if got != want {
t.Errorf("\n got %q\nwant %q", got, want)
}
}
func BenchmarkMarshalTextBuffered(b *testing.B) {
buf := new(bytes.Buffer)
m := newTestMessage()
for i := 0; i < b.N; i++ {
buf.Reset()
proto.MarshalText(buf, m)
}
}
func BenchmarkMarshalTextUnbuffered(b *testing.B) {
w := ioutil.Discard
m := newTestMessage()
for i := 0; i < b.N; i++ {
proto.MarshalText(w, m)
}
}
func compact(src string) string {
// s/[ \n]+/ /g; s/ $//;
dst := make([]byte, len(src))
space, comment := false, false
j := 0
for i := 0; i < len(src); i++ {
if strings.HasPrefix(src[i:], "/*") {
comment = true
i++
continue
}
if comment && strings.HasPrefix(src[i:], "*/") {
comment = false
i++
continue
}
if comment {
continue
}
c := src[i]
if c == ' ' || c == '\n' {
space = true
continue
}
if j > 0 && (dst[j-1] == ':' || dst[j-1] == '<' || dst[j-1] == '{') {
space = false
}
if c == '{' {
space = false
}
if space {
dst[j] = ' '
j++
space = false
}
dst[j] = c
j++
}
if space {
dst[j] = ' '
j++
}
return string(dst[0:j])
}
var compactText = compact(text)
func TestCompactText(t *testing.T) {
s := proto.CompactTextString(newTestMessage())
if s != compactText {
t.Errorf("Got:\n===\n%v===\nExpected:\n===\n%v\n===\n", s, compactText)
}
}
func TestStringEscaping(t *testing.T) {
testCases := []struct {
in *pb.Strings
out string
}{
{
// Test data from C++ test (TextFormatTest.StringEscape).
// Single divergence: we don't escape apostrophes.
&pb.Strings{StringField: proto.String("\"A string with ' characters \n and \r newlines and \t tabs and \001 slashes \\ and multiple spaces")},
"string_field: \"\\\"A string with ' characters \\n and \\r newlines and \\t tabs and \\001 slashes \\\\ and multiple spaces\"\n",
},
{
// Test data from the same C++ test.
&pb.Strings{StringField: proto.String("\350\260\267\346\255\214")},
"string_field: \"\\350\\260\\267\\346\\255\\214\"\n",
},
{
// Some UTF-8.
&pb.Strings{StringField: proto.String("\x00\x01\xff\x81")},
`string_field: "\000\001\377\201"` + "\n",
},
}
for i, tc := range testCases {
var buf bytes.Buffer
if err := proto.MarshalText(&buf, tc.in); err != nil {
t.Errorf("proto.MarsalText: %v", err)
continue
}
s := buf.String()
if s != tc.out {
t.Errorf("#%d: Got:\n%s\nExpected:\n%s\n", i, s, tc.out)
continue
}
// Check round-trip.
pb := new(pb.Strings)
if err := proto.UnmarshalText(s, pb); err != nil {
t.Errorf("#%d: UnmarshalText: %v", i, err)
continue
}
if !proto.Equal(pb, tc.in) {
t.Errorf("#%d: Round-trip failed:\nstart: %v\n end: %v", i, tc.in, pb)
}
}
}
// A limitedWriter accepts some output before it fails.
// This is a proxy for something like a nearly-full or imminently-failing disk,
// or a network connection that is about to die.
type limitedWriter struct {
b bytes.Buffer
limit int
}
var outOfSpace = errors.New("proto: insufficient space")
func (w *limitedWriter) Write(p []byte) (n int, err error) {
var avail = w.limit - w.b.Len()
if avail <= 0 {
return 0, outOfSpace
}
if len(p) <= avail {
return w.b.Write(p)
}
n, _ = w.b.Write(p[:avail])
return n, outOfSpace
}
func TestMarshalTextFailing(t *testing.T) {
// Try lots of different sizes to exercise more error code-paths.
for lim := 0; lim < len(text); lim++ {
buf := new(limitedWriter)
buf.limit = lim
err := proto.MarshalText(buf, newTestMessage())
// We expect a certain error, but also some partial results in the buffer.
if err != outOfSpace {
t.Errorf("Got:\n===\n%v===\nExpected:\n===\n%v===\n", err, outOfSpace)
}
s := buf.b.String()
x := text[:buf.limit]
if s != x {
t.Errorf("Got:\n===\n%v===\nExpected:\n===\n%v===\n", s, x)
}
}
}
func TestFloats(t *testing.T) {
tests := []struct {
f float64
want string
}{
{0, "0"},
{4.7, "4.7"},
{math.Inf(1), "inf"},
{math.Inf(-1), "-inf"},
{math.NaN(), "nan"},
}
for _, test := range tests {
msg := &pb.FloatingPoint{F: &test.f}
got := strings.TrimSpace(msg.String())
want := `f:` + test.want
if got != want {
t.Errorf("f=%f: got %q, want %q", test.f, got, want)
}
}
}
func TestRepeatedNilText(t *testing.T) {
m := &pb.MessageList{
Message: []*pb.MessageList_Message{
nil,
&pb.MessageList_Message{
Name: proto.String("Horse"),
},
nil,
},
}
want := `Message <nil>
Message {
name: "Horse"
}
Message <nil>
`
if s := proto.MarshalTextString(m); s != want {
t.Errorf(" got: %s\nwant: %s", s, want)
}
}
func TestProto3Text(t *testing.T) {
tests := []struct {
m proto.Message
want string
}{
// zero message
{&proto3pb.Message{}, ``},
// zero message except for an empty byte slice
{&proto3pb.Message{Data: []byte{}}, ``},
// trivial case
{&proto3pb.Message{Name: "Rob", HeightInCm: 175}, `name:"Rob" height_in_cm:175`},
// empty map
{&pb.MessageWithMap{}, ``},
// non-empty map; current map format is the same as a repeated struct
{
&pb.MessageWithMap{NameMapping: map[int32]string{1234: "Feist"}},
`name_mapping:<key:1234 value:"Feist" >`,
},
// map with nil value; not well-defined, but we shouldn't crash
{
&pb.MessageWithMap{MsgMapping: map[int64]*pb.FloatingPoint{7: nil}},
`msg_mapping:<key:7 >`,
},
}
for _, test := range tests {
got := strings.TrimSpace(test.m.String())
if got != test.want {
t.Errorf("\n got %s\nwant %s", got, test.want)
}
}
}

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# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
test:
cd testdata && make test

45
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# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Not stored here, but descriptor.proto is in https://github.com/google/protobuf/
# at src/google/protobuf/descriptor.proto
regenerate:
echo WARNING! THIS RULE IS PROBABLY NOT RIGHT FOR YOUR INSTALLATION
cd $(HOME)/src/protobuf/src && \
protoc --go_out=. ./google/protobuf/descriptor.proto && \
sed -i 's,^package google_protobuf,package descriptor,' google/protobuf/descriptor.pb.go && \
cp ./google/protobuf/descriptor.pb.go $(GOPATH)/src/github.com/golang/protobuf/protoc-gen-go/descriptor/descriptor.pb.go
restore:
cp descriptor.pb.golden descriptor.pb.go
preserve:
cp descriptor.pb.go descriptor.pb.golden

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
/*
A plugin for the Google protocol buffer compiler to generate Go code.
Run it by building this program and putting it in your path with the name
protoc-gen-go
That word 'go' at the end becomes part of the option string set for the
protocol compiler, so once the protocol compiler (protoc) is installed
you can run
protoc --go_out=output_directory input_directory/file.proto
to generate Go bindings for the protocol defined by file.proto.
With that input, the output will be written to
output_directory/file.pb.go
The generated code is documented in the package comment for
the library.
See the README and documentation for protocol buffers to learn more:
https://developers.google.com/protocol-buffers/
*/
package documentation

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# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
include $(GOROOT)/src/Make.inc
TARG=github.com/golang/protobuf/compiler/generator
GOFILES=\
generator.go\
DEPS=../descriptor ../plugin ../../proto
include $(GOROOT)/src/Make.pkg

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Godeps/_workspace/src/github.com/golang/protobuf/protoc-gen-go/generator/name_test.go generated vendored Normal file
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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2013 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package generator
import (
"testing"
)
func TestCamelCase(t *testing.T) {
tests := []struct {
in, want string
}{
{"one", "One"},
{"one_two", "OneTwo"},
{"_my_field_name_2", "XMyFieldName_2"},
{"Something_Capped", "Something_Capped"},
{"my_Name", "My_Name"},
{"OneTwo", "OneTwo"},
{"_", "X"},
{"_a_", "XA_"},
}
for _, tc := range tests {
if got := CamelCase(tc.in); got != tc.want {
t.Errorf("CamelCase(%q) = %q, want %q", tc.in, got, tc.want)
}
}
}

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// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2015 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Package grpc outputs gRPC service descriptions in Go code.
// It runs as a plugin for the Go protocol buffer compiler plugin.
// It is linked in to protoc-gen-go.
package grpc
import (
"fmt"
"path"
"strconv"
"strings"
pb "github.com/golang/protobuf/protoc-gen-go/descriptor"
"github.com/golang/protobuf/protoc-gen-go/generator"
)
// Paths for packages used by code generated in this file,
// relative to the import_prefix of the generator.Generator.
const (
contextPkgPath = "golang.org/x/net/context"
grpcPkgPath = "google.golang.org/grpc"
)
func init() {
generator.RegisterPlugin(new(grpc))
}
// grpc is an implementation of the Go protocol buffer compiler's
// plugin architecture. It generates bindings for gRPC support.
type grpc struct {
gen *generator.Generator
}
// Name returns the name of this plugin, "grpc".
func (g *grpc) Name() string {
return "grpc"
}
// The names for packages imported in the generated code.
// They may vary from the final path component of the import path
// if the name is used by other packages.
var (
contextPkg string
grpcPkg string
)
// Init initializes the plugin.
func (g *grpc) Init(gen *generator.Generator) {
g.gen = gen
contextPkg = generator.RegisterUniquePackageName("context", nil)
grpcPkg = generator.RegisterUniquePackageName("grpc", nil)
}
// Given a type name defined in a .proto, return its object.
// Also record that we're using it, to guarantee the associated import.
func (g *grpc) objectNamed(name string) generator.Object {
g.gen.RecordTypeUse(name)
return g.gen.ObjectNamed(name)
}
// Given a type name defined in a .proto, return its name as we will print it.
func (g *grpc) typeName(str string) string {
return g.gen.TypeName(g.objectNamed(str))
}
// P forwards to g.gen.P.
func (g *grpc) P(args ...interface{}) { g.gen.P(args...) }
// Generate generates code for the services in the given file.
func (g *grpc) Generate(file *generator.FileDescriptor) {
for i, service := range file.FileDescriptorProto.Service {
g.generateService(file, service, i)
}
}
// GenerateImports generates the import declaration for this file.
func (g *grpc) GenerateImports(file *generator.FileDescriptor) {
if len(file.FileDescriptorProto.Service) == 0 {
return
}
g.P("import (")
g.P(contextPkg, " ", strconv.Quote(path.Join(g.gen.ImportPrefix, contextPkgPath)))
g.P(grpcPkg, " ", strconv.Quote(path.Join(g.gen.ImportPrefix, grpcPkgPath)))
g.P(")")
g.P()
g.P("// Reference imports to suppress errors if they are not otherwise used.")
g.P("var _ ", contextPkg, ".Context")
g.P("var _ ", grpcPkg, ".ClientConn")
g.P()
}
// reservedClientName records whether a client name is reserved on the client side.
var reservedClientName = map[string]bool{
// TODO: do we need any in gRPC?
}
func unexport(s string) string { return strings.ToLower(s[:1]) + s[1:] }
// generateService generates all the code for the named service.
func (g *grpc) generateService(file *generator.FileDescriptor, service *pb.ServiceDescriptorProto, index int) {
path := fmt.Sprintf("6,%d", index) // 6 means service.
origServName := service.GetName()
fullServName := file.GetPackage() + "." + origServName
servName := generator.CamelCase(origServName)
g.P()
g.P("// Client API for ", servName, " service")
g.P()
// Client interface.
g.P("type ", servName, "Client interface {")
for i, method := range service.Method {
g.gen.PrintComments(fmt.Sprintf("%s,2,%d", path, i)) // 2 means method in a service.
g.P(g.generateClientSignature(servName, method))
}
g.P("}")
g.P()
// Client structure.
g.P("type ", unexport(servName), "Client struct {")
g.P("cc *", grpcPkg, ".ClientConn")
g.P("}")
g.P()
// NewClient factory.
g.P("func New", servName, "Client (cc *", grpcPkg, ".ClientConn) ", servName, "Client {")
g.P("return &", unexport(servName), "Client{cc}")
g.P("}")
g.P()
var methodIndex, streamIndex int
serviceDescVar := "_" + servName + "_serviceDesc"
// Client method implementations.
for _, method := range service.Method {
var descExpr string
if !method.GetServerStreaming() && !method.GetClientStreaming() {
// Unary RPC method
descExpr = fmt.Sprintf("&%s.Methods[%d]", serviceDescVar, methodIndex)
methodIndex++
} else {
// Streaming RPC method
descExpr = fmt.Sprintf("&%s.Streams[%d]", serviceDescVar, streamIndex)
streamIndex++
}
g.generateClientMethod(servName, fullServName, serviceDescVar, method, descExpr)
}
g.P("// Server API for ", servName, " service")
g.P()
// Server interface.
serverType := servName + "Server"
g.P("type ", serverType, " interface {")
for i, method := range service.Method {
g.gen.PrintComments(fmt.Sprintf("%s,2,%d", path, i)) // 2 means method in a service.
g.P(g.generateServerSignature(servName, method))
}
g.P("}")
g.P()
// Server registration.
g.P("func Register", servName, "Server(s *", grpcPkg, ".Server, srv ", serverType, ") {")
g.P("s.RegisterService(&", serviceDescVar, `, srv)`)
g.P("}")
g.P()
// Server handler implementations.
var handlerNames []string
for _, method := range service.Method {
hname := g.generateServerMethod(servName, method)
handlerNames = append(handlerNames, hname)
}
// Service descriptor.
g.P("var ", serviceDescVar, " = ", grpcPkg, ".ServiceDesc {")
g.P("ServiceName: ", strconv.Quote(fullServName), ",")
g.P("HandlerType: (*", serverType, ")(nil),")
g.P("Methods: []", grpcPkg, ".MethodDesc{")
for i, method := range service.Method {
if method.GetServerStreaming() || method.GetClientStreaming() {
continue
}
g.P("{")
g.P("MethodName: ", strconv.Quote(method.GetName()), ",")
g.P("Handler: ", handlerNames[i], ",")
g.P("},")
}
g.P("},")
g.P("Streams: []", grpcPkg, ".StreamDesc{")
for i, method := range service.Method {
if !method.GetServerStreaming() && !method.GetClientStreaming() {
continue
}
g.P("{")
g.P("StreamName: ", strconv.Quote(method.GetName()), ",")
g.P("Handler: ", handlerNames[i], ",")
if method.GetServerStreaming() {
g.P("ServerStreams: true,")
}
if method.GetClientStreaming() {
g.P("ClientStreams: true,")
}
g.P("},")
}
g.P("},")
g.P("}")
g.P()
}
// generateClientSignature returns the client-side signature for a method.
func (g *grpc) generateClientSignature(servName string, method *pb.MethodDescriptorProto) string {
origMethName := method.GetName()
methName := generator.CamelCase(origMethName)
if reservedClientName[methName] {
methName += "_"
}
reqArg := ", in *" + g.typeName(method.GetInputType())
if method.GetClientStreaming() {
reqArg = ""
}
respName := "*" + g.typeName(method.GetOutputType())
if method.GetServerStreaming() || method.GetClientStreaming() {
respName = servName + "_" + generator.CamelCase(origMethName) + "Client"
}
return fmt.Sprintf("%s(ctx %s.Context%s, opts ...%s.CallOption) (%s, error)", methName, contextPkg, reqArg, grpcPkg, respName)
}
func (g *grpc) generateClientMethod(servName, fullServName, serviceDescVar string, method *pb.MethodDescriptorProto, descExpr string) {
sname := fmt.Sprintf("/%s/%s", fullServName, method.GetName())
methName := generator.CamelCase(method.GetName())
inType := g.typeName(method.GetInputType())
outType := g.typeName(method.GetOutputType())
g.P("func (c *", unexport(servName), "Client) ", g.generateClientSignature(servName, method), "{")
if !method.GetServerStreaming() && !method.GetClientStreaming() {
g.P("out := new(", outType, ")")
// TODO: Pass descExpr to Invoke.
g.P("err := ", grpcPkg, `.Invoke(ctx, "`, sname, `", in, out, c.cc, opts...)`)
g.P("if err != nil { return nil, err }")
g.P("return out, nil")
g.P("}")
g.P()
return
}
streamType := unexport(servName) + methName + "Client"
g.P("stream, err := ", grpcPkg, ".NewClientStream(ctx, ", descExpr, `, c.cc, "`, sname, `", opts...)`)
g.P("if err != nil { return nil, err }")
g.P("x := &", streamType, "{stream}")
if !method.GetClientStreaming() {
g.P("if err := x.ClientStream.SendMsg(in); err != nil { return nil, err }")
g.P("if err := x.ClientStream.CloseSend(); err != nil { return nil, err }")
}
g.P("return x, nil")
g.P("}")
g.P()
genSend := method.GetClientStreaming()
genRecv := method.GetServerStreaming()
genCloseAndRecv := !method.GetServerStreaming()
// Stream auxiliary types and methods.
g.P("type ", servName, "_", methName, "Client interface {")
if genSend {
g.P("Send(*", inType, ") error")
}
if genRecv {
g.P("Recv() (*", outType, ", error)")
}
if genCloseAndRecv {
g.P("CloseAndRecv() (*", outType, ", error)")
}
g.P(grpcPkg, ".ClientStream")
g.P("}")
g.P()
g.P("type ", streamType, " struct {")
g.P(grpcPkg, ".ClientStream")
g.P("}")
g.P()
if genSend {
g.P("func (x *", streamType, ") Send(m *", inType, ") error {")
g.P("return x.ClientStream.SendMsg(m)")
g.P("}")
g.P()
}
if genRecv {
g.P("func (x *", streamType, ") Recv() (*", outType, ", error) {")
g.P("m := new(", outType, ")")
g.P("if err := x.ClientStream.RecvMsg(m); err != nil { return nil, err }")
g.P("return m, nil")
g.P("}")
g.P()
}
if genCloseAndRecv {
g.P("func (x *", streamType, ") CloseAndRecv() (*", outType, ", error) {")
g.P("if err := x.ClientStream.CloseSend(); err != nil { return nil, err }")
g.P("m := new(", outType, ")")
g.P("if err := x.ClientStream.RecvMsg(m); err != nil { return nil, err }")
g.P("return m, nil")
g.P("}")
g.P()
}
}
// generateServerSignature returns the server-side signature for a method.
func (g *grpc) generateServerSignature(servName string, method *pb.MethodDescriptorProto) string {
origMethName := method.GetName()
methName := generator.CamelCase(origMethName)
if reservedClientName[methName] {
methName += "_"
}
var reqArgs []string
ret := "error"
if !method.GetServerStreaming() && !method.GetClientStreaming() {
reqArgs = append(reqArgs, contextPkg+".Context")
ret = "(*" + g.typeName(method.GetOutputType()) + ", error)"
}
if !method.GetClientStreaming() {
reqArgs = append(reqArgs, "*"+g.typeName(method.GetInputType()))
}
if method.GetServerStreaming() || method.GetClientStreaming() {
reqArgs = append(reqArgs, servName+"_"+generator.CamelCase(origMethName)+"Server")
}
return methName + "(" + strings.Join(reqArgs, ", ") + ") " + ret
}
func (g *grpc) generateServerMethod(servName string, method *pb.MethodDescriptorProto) string {
methName := generator.CamelCase(method.GetName())
hname := fmt.Sprintf("_%s_%s_Handler", servName, methName)
inType := g.typeName(method.GetInputType())
outType := g.typeName(method.GetOutputType())
if !method.GetServerStreaming() && !method.GetClientStreaming() {
g.P("func ", hname, "(srv interface{}, ctx ", contextPkg, ".Context, codec ", grpcPkg, ".Codec, buf []byte) (interface{}, error) {")
g.P("in := new(", inType, ")")
g.P("if err := codec.Unmarshal(buf, in); err != nil { return nil, err }")
g.P("out, err := srv.(", servName, "Server).", methName, "(ctx, in)")
g.P("if err != nil { return nil, err }")
g.P("return out, nil")
g.P("}")
g.P()
return hname
}
streamType := unexport(servName) + methName + "Server"
g.P("func ", hname, "(srv interface{}, stream ", grpcPkg, ".ServerStream) error {")
if !method.GetClientStreaming() {
g.P("m := new(", inType, ")")
g.P("if err := stream.RecvMsg(m); err != nil { return err }")
g.P("return srv.(", servName, "Server).", methName, "(m, &", streamType, "{stream})")
} else {
g.P("return srv.(", servName, "Server).", methName, "(&", streamType, "{stream})")
}
g.P("}")
g.P()
genSend := method.GetServerStreaming()
genSendAndClose := !method.GetServerStreaming()
genRecv := method.GetClientStreaming()
// Stream auxiliary types and methods.
g.P("type ", servName, "_", methName, "Server interface {")
if genSend {
g.P("Send(*", outType, ") error")
}
if genSendAndClose {
g.P("SendAndClose(*", outType, ") error")
}
if genRecv {
g.P("Recv() (*", inType, ", error)")
}
g.P(grpcPkg, ".ServerStream")
g.P("}")
g.P()
g.P("type ", streamType, " struct {")
g.P(grpcPkg, ".ServerStream")
g.P("}")
g.P()
if genSend {
g.P("func (x *", streamType, ") Send(m *", outType, ") error {")
g.P("return x.ServerStream.SendMsg(m)")
g.P("}")
g.P()
}
if genSendAndClose {
g.P("func (x *", streamType, ") SendAndClose(m *", outType, ") error {")
g.P("return x.ServerStream.SendMsg(m)")
g.P("}")
g.P()
}
if genRecv {
g.P("func (x *", streamType, ") Recv() (*", inType, ", error) {")
g.P("m := new(", inType, ")")
g.P("if err := x.ServerStream.RecvMsg(m); err != nil { return nil, err }")
g.P("return m, nil")
g.P("}")
g.P()
}
return hname
}

34
Godeps/_workspace/src/github.com/golang/protobuf/protoc-gen-go/link_grpc.go generated vendored Normal file
View File

@ -0,0 +1,34 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2015 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package main
import _ "github.com/golang/protobuf/protoc-gen-go/internal/grpc"

98
Godeps/_workspace/src/github.com/golang/protobuf/protoc-gen-go/main.go generated vendored Normal file
View File

@ -0,0 +1,98 @@
// Go support for Protocol Buffers - Google's data interchange format
//
// Copyright 2010 The Go Authors. All rights reserved.
// https://github.com/golang/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// protoc-gen-go is a plugin for the Google protocol buffer compiler to generate
// Go code. Run it by building this program and putting it in your path with
// the name
// protoc-gen-go
// That word 'go' at the end becomes part of the option string set for the
// protocol compiler, so once the protocol compiler (protoc) is installed
// you can run
// protoc --go_out=output_directory input_directory/file.proto
// to generate Go bindings for the protocol defined by file.proto.
// With that input, the output will be written to
// output_directory/file.pb.go
//
// The generated code is documented in the package comment for
// the library.
//
// See the README and documentation for protocol buffers to learn more:
// https://developers.google.com/protocol-buffers/
package main
import (
"io/ioutil"
"os"
"github.com/golang/protobuf/proto"
"github.com/golang/protobuf/protoc-gen-go/generator"
)
func main() {
// Begin by allocating a generator. The request and response structures are stored there
// so we can do error handling easily - the response structure contains the field to
// report failure.
g := generator.New()
data, err := ioutil.ReadAll(os.Stdin)
if err != nil {
g.Error(err, "reading input")
}
if err := proto.Unmarshal(data, g.Request); err != nil {
g.Error(err, "parsing input proto")
}
if len(g.Request.FileToGenerate) == 0 {
g.Fail("no files to generate")
}
g.CommandLineParameters(g.Request.GetParameter())
// Create a wrapped version of the Descriptors and EnumDescriptors that
// point to the file that defines them.
g.WrapTypes()
g.SetPackageNames()
g.BuildTypeNameMap()
g.GenerateAllFiles()
// Send back the results.
data, err = proto.Marshal(g.Response)
if err != nil {
g.Error(err, "failed to marshal output proto")
}
_, err = os.Stdout.Write(data)
if err != nil {
g.Error(err, "failed to write output proto")
}
}

46
Godeps/_workspace/src/github.com/golang/protobuf/protoc-gen-go/plugin/Makefile generated vendored Normal file
View File

@ -0,0 +1,46 @@
# Go support for Protocol Buffers - Google's data interchange format
#
# Copyright 2010 The Go Authors. All rights reserved.
# https://github.com/golang/protobuf
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Not stored here, but plugin.proto is in https://github.com/google/protobuf/
# at src/google/protobuf/compiler/plugin.proto
# Also we need to fix an import.
regenerate:
echo WARNING! THIS RULE IS PROBABLY NOT RIGHT FOR YOUR INSTALLATION
cd $(HOME)/src/protobuf/src && \
protoc --go_out=Mgoogle/protobuf/descriptor.proto=github.com/golang/protobuf/protoc-gen-go/descriptor:. \
./google/protobuf/compiler/plugin.proto && \
cat ./google/protobuf/compiler/plugin.pb.go > $(GOPATH)/src/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.go
restore:
cp plugin.pb.golden plugin.pb.go
preserve:
cp plugin.pb.go plugin.pb.golden

83
Godeps/_workspace/src/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.golden generated vendored Normal file
View File

@ -0,0 +1,83 @@
// Code generated by protoc-gen-go.
// source: google/protobuf/compiler/plugin.proto
// DO NOT EDIT!
package google_protobuf_compiler
import proto "github.com/golang/protobuf/proto"
import "math"
import google_protobuf "github.com/golang/protobuf/protoc-gen-go/descriptor"
// Reference proto and math imports to suppress error if they are not otherwise used.
var _ = proto.GetString
var _ = math.Inf
type CodeGeneratorRequest struct {
FileToGenerate []string `protobuf:"bytes,1,rep,name=file_to_generate" json:"file_to_generate,omitempty"`
Parameter *string `protobuf:"bytes,2,opt,name=parameter" json:"parameter,omitempty"`
ProtoFile []*google_protobuf.FileDescriptorProto `protobuf:"bytes,15,rep,name=proto_file" json:"proto_file,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (this *CodeGeneratorRequest) Reset() { *this = CodeGeneratorRequest{} }
func (this *CodeGeneratorRequest) String() string { return proto.CompactTextString(this) }
func (*CodeGeneratorRequest) ProtoMessage() {}
func (this *CodeGeneratorRequest) GetParameter() string {
if this != nil && this.Parameter != nil {
return *this.Parameter
}
return ""
}
type CodeGeneratorResponse struct {
Error *string `protobuf:"bytes,1,opt,name=error" json:"error,omitempty"`
File []*CodeGeneratorResponse_File `protobuf:"bytes,15,rep,name=file" json:"file,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (this *CodeGeneratorResponse) Reset() { *this = CodeGeneratorResponse{} }
func (this *CodeGeneratorResponse) String() string { return proto.CompactTextString(this) }
func (*CodeGeneratorResponse) ProtoMessage() {}
func (this *CodeGeneratorResponse) GetError() string {
if this != nil && this.Error != nil {
return *this.Error
}
return ""
}
type CodeGeneratorResponse_File struct {
Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
InsertionPoint *string `protobuf:"bytes,2,opt,name=insertion_point" json:"insertion_point,omitempty"`
Content *string `protobuf:"bytes,15,opt,name=content" json:"content,omitempty"`
XXX_unrecognized []byte `json:"-"`
}
func (this *CodeGeneratorResponse_File) Reset() { *this = CodeGeneratorResponse_File{} }
func (this *CodeGeneratorResponse_File) String() string { return proto.CompactTextString(this) }
func (*CodeGeneratorResponse_File) ProtoMessage() {}
func (this *CodeGeneratorResponse_File) GetName() string {
if this != nil && this.Name != nil {
return *this.Name
}
return ""
}
func (this *CodeGeneratorResponse_File) GetInsertionPoint() string {
if this != nil && this.InsertionPoint != nil {
return *this.InsertionPoint
}
return ""
}
func (this *CodeGeneratorResponse_File) GetContent() string {
if this != nil && this.Content != nil {
return *this.Content
}
return ""
}
func init() {
}

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