fcrozat/distribution
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Feedback update

Browse Source 
Update comments and TODOs
Fix switch style
Updated parse http response to take in reader
Add Cancel implementation
Update blobstore variable name

Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
This commit is contained in:
Derek McGowan
2015-05-19 19:18:30 -07:00
parent eb2ac4301f
commit 8db2145b81
4 changed files with 68 additions and 62 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
docs/client/blob_writer.go
View File

@@ -2,7 +2,6 @@ package client
import (
"bytes"
"errors"
"fmt"
"io"
"io/ioutil"
@@ -49,7 +48,6 @@ func (hbu *httpBlobUpload) ReadFrom(r io.Reader) (n int64, err error) {
return 0, hbu.handleErrorResponse(resp)
}
// TODO(dmcgowan): Validate headers
hbu.uuid = resp.Header.Get("Docker-Upload-UUID")
hbu.location, err = sanitizeLocation(resp.Header.Get("Location"), hbu.location)
if err != nil {
@@ -85,7 +83,6 @@ func (hbu *httpBlobUpload) Write(p []byte) (n int, err error) {
return 0, hbu.handleErrorResponse(resp)
}
// TODO(dmcgowan): Validate headers
hbu.uuid = resp.Header.Get("Docker-Upload-UUID")
hbu.location, err = sanitizeLocation(resp.Header.Get("Location"), hbu.location)
if err != nil {
@@ -110,7 +107,7 @@ func (hbu *httpBlobUpload) Seek(offset int64, whence int) (int64, error) {
case os.SEEK_CUR:
newOffset += int64(offset)
case os.SEEK_END:
return newOffset, errors.New("Cannot seek from end on incomplete upload")
newOffset += int64(offset)
case os.SEEK_SET:
newOffset = int64(offset)
}
@@ -143,6 +140,7 @@ func (hbu *httpBlobUpload) Commit(ctx context.Context, desc distribution.Descrip
if err != nil {
return distribution.Descriptor{}, err
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusCreated {
return distribution.Descriptor{}, hbu.handleErrorResponse(resp)
@@ -152,7 +150,22 @@ func (hbu *httpBlobUpload) Commit(ctx context.Context, desc distribution.Descrip
}
func (hbu *httpBlobUpload) Cancel(ctx context.Context) error {
panic("not implemented")
req, err := http.NewRequest("DELETE", hbu.location, nil)
if err != nil {
return err
}
resp, err := hbu.client.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
switch resp.StatusCode {
case http.StatusNoContent, http.StatusNotFound:
return nil
default:
return hbu.handleErrorResponse(resp)
}
}
func (hbu *httpBlobUpload) Close() error {

10
docs/client/blob_writer_test.go
View File

@@ -205,13 +205,3 @@ func TestUploadReadFrom(t *testing.T) {
t.Fatalf("Unexpected response status: %s, expected %s", uploadErr.Status, expected)
}
}
//repo distribution.Repository
//client *http.Client
//uuid string
//startedAt time.Time
//location string // always the last value of the location header.
//offset int64
//closed bool

7
docs/client/errors.go
View File

@@ -3,6 +3,7 @@ package client
import (
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
@@ -34,9 +35,9 @@ func (e *UnexpectedHTTPResponseError) Error() string {
return fmt.Sprintf("Error parsing HTTP response: %s: %q", e.ParseErr.Error(), shortenedResponse)
}
func parseHTTPErrorResponse(response *http.Response) error {
func parseHTTPErrorResponse(r io.Reader) error {
var errors v2.Errors
body, err := ioutil.ReadAll(response.Body)
body, err := ioutil.ReadAll(r)
if err != nil {
return err
}
@@ -52,7 +53,7 @@ func parseHTTPErrorResponse(response *http.Response) error {
func handleErrorResponse(resp *http.Response) error {
if resp.StatusCode >= 400 && resp.StatusCode < 500 {
return parseHTTPErrorResponse(resp)
return parseHTTPErrorResponse(resp.Body)
}
return &UnexpectedHTTPStatusError{Status: resp.Status}
}

90
docs/client/repository.go
View File

@@ -11,12 +11,10 @@ import (
"strconv"
"time"
"github.com/docker/distribution/manifest"
"github.com/docker/distribution/digest"
"github.com/docker/distribution"
"github.com/docker/distribution/context"
"github.com/docker/distribution/digest"
"github.com/docker/distribution/manifest"
"github.com/docker/distribution/registry/api/v2"
"github.com/docker/distribution/registry/client/transport"
"github.com/docker/distribution/registry/storage/cache"
@@ -108,8 +106,8 @@ func (ms *manifests) Tags() ([]string, error) {
}
defer resp.Body.Close()
switch {
case resp.StatusCode == http.StatusOK:
switch resp.StatusCode {
case http.StatusOK:
b, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
@@ -123,7 +121,7 @@ func (ms *manifests) Tags() ([]string, error) {
}
return tagsResponse.Tags, nil
case resp.StatusCode == http.StatusNotFound:
case http.StatusNotFound:
return nil, nil
default:
return nil, handleErrorResponse(resp)
@@ -131,6 +129,8 @@ func (ms *manifests) Tags() ([]string, error) {
}
func (ms *manifests) Exists(dgst digest.Digest) (bool, error) {
// Call by Tag endpoint since the API uses the same
// URL endpoint for tags and digests.
return ms.ExistsByTag(dgst.String())
}
@@ -145,10 +145,10 @@ func (ms *manifests) ExistsByTag(tag string) (bool, error) {
return false, err
}
switch {
case resp.StatusCode == http.StatusOK:
switch resp.StatusCode {
case http.StatusOK:
return true, nil
case resp.StatusCode == http.StatusNotFound:
case http.StatusNotFound:
return false, nil
default:
return false, handleErrorResponse(resp)
@@ -156,6 +156,8 @@ func (ms *manifests) ExistsByTag(tag string) (bool, error) {
}
func (ms *manifests) Get(dgst digest.Digest) (*manifest.SignedManifest, error) {
// Call by Tag endpoint since the API uses the same
// URL endpoint for tags and digests.
return ms.GetByTag(dgst.String())
}
@@ -171,8 +173,8 @@ func (ms *manifests) GetByTag(tag string) (*manifest.SignedManifest, error) {
}
defer resp.Body.Close()
switch {
case resp.StatusCode == http.StatusOK:
switch resp.StatusCode {
case http.StatusOK:
var sm manifest.SignedManifest
decoder := json.NewDecoder(resp.Body)
@@ -203,9 +205,9 @@ func (ms *manifests) Put(m *manifest.SignedManifest) error {
}
defer resp.Body.Close()
switch {
case resp.StatusCode == http.StatusAccepted:
// TODO(dmcgowan): Use or check digest header
switch resp.StatusCode {
case http.StatusAccepted:
// TODO(dmcgowan): make use of digest header
return nil
default:
return handleErrorResponse(resp)
@@ -228,8 +230,8 @@ func (ms *manifests) Delete(dgst digest.Digest) error {
}
defer resp.Body.Close()
switch {
case resp.StatusCode == http.StatusOK:
switch resp.StatusCode {
case http.StatusOK:
return nil
default:
return handleErrorResponse(resp)
@@ -263,17 +265,17 @@ func sanitizeLocation(location, source string) (string, error) {
return location, nil
}
func (ls *blobs) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) {
return ls.statter.Stat(ctx, dgst)
func (bs *blobs) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) {
return bs.statter.Stat(ctx, dgst)
}
func (ls *blobs) Get(ctx context.Context, dgst digest.Digest) ([]byte, error) {
desc, err := ls.Stat(ctx, dgst)
func (bs *blobs) Get(ctx context.Context, dgst digest.Digest) ([]byte, error) {
desc, err := bs.Stat(ctx, dgst)
if err != nil {
return nil, err
}
reader, err := ls.Open(ctx, desc.Digest)
reader, err := bs.Open(ctx, desc.Digest)
if err != nil {
return nil, err
}
@@ -282,26 +284,26 @@ func (ls *blobs) Get(ctx context.Context, dgst digest.Digest) ([]byte, error) {
return ioutil.ReadAll(reader)
}
func (ls *blobs) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
stat, err := ls.statter.Stat(ctx, dgst)
func (bs *blobs) Open(ctx context.Context, dgst digest.Digest) (distribution.ReadSeekCloser, error) {
stat, err := bs.statter.Stat(ctx, dgst)
if err != nil {
return nil, err
}
blobURL, err := ls.ub.BuildBlobURL(ls.Name(), stat.Digest)
blobURL, err := bs.ub.BuildBlobURL(bs.Name(), stat.Digest)
if err != nil {
return nil, err
}
return transport.NewHTTPReadSeeker(ls.repository.client, blobURL, stat.Length), nil
return transport.NewHTTPReadSeeker(bs.repository.client, blobURL, stat.Length), nil
}
func (ls *blobs) ServeBlob(ctx context.Context, w http.ResponseWriter, r *http.Request, dgst digest.Digest) error {
return nil
func (bs *blobs) ServeBlob(ctx context.Context, w http.ResponseWriter, r *http.Request, dgst digest.Digest) error {
panic("not implemented")
}
func (ls *blobs) Put(ctx context.Context, mediaType string, p []byte) (distribution.Descriptor, error) {
writer, err := ls.Create(ctx)
func (bs *blobs) Put(ctx context.Context, mediaType string, p []byte) (distribution.Descriptor, error) {
writer, err := bs.Create(ctx)
if err != nil {
return distribution.Descriptor{}, err
}
@@ -323,17 +325,17 @@ func (ls *blobs) Put(ctx context.Context, mediaType string, p []byte) (distribut
return writer.Commit(ctx, desc)
}
func (ls *blobs) Create(ctx context.Context) (distribution.BlobWriter, error) {
u, err := ls.ub.BuildBlobUploadURL(ls.name)
func (bs *blobs) Create(ctx context.Context) (distribution.BlobWriter, error) {
u, err := bs.ub.BuildBlobUploadURL(bs.name)
resp, err := ls.client.Post(u, "", nil)
resp, err := bs.client.Post(u, "", nil)
if err != nil {
return nil, err
}
defer resp.Body.Close()
switch {
case resp.StatusCode == http.StatusAccepted:
switch resp.StatusCode {
case http.StatusAccepted:
// TODO(dmcgowan): Check for invalid UUID
uuid := resp.Header.Get("Docker-Upload-UUID")
location, err := sanitizeLocation(resp.Header.Get("Location"), u)
@@ -342,8 +344,8 @@ func (ls *blobs) Create(ctx context.Context) (distribution.BlobWriter, error) {
}
return &httpBlobUpload{
repo: ls.repository,
client: ls.client,
repo: bs.repository,
client: bs.client,
uuid: uuid,
startedAt: time.Now(),
location: location,
@@ -353,7 +355,7 @@ func (ls *blobs) Create(ctx context.Context) (distribution.BlobWriter, error) {
}
}
func (ls *blobs) Resume(ctx context.Context, id string) (distribution.BlobWriter, error) {
func (bs *blobs) Resume(ctx context.Context, id string) (distribution.BlobWriter, error) {
panic("not implemented")
}
@@ -361,20 +363,20 @@ type blobStatter struct {
*repository
}
func (ls *blobStatter) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) {
u, err := ls.ub.BuildBlobURL(ls.name, dgst)
func (bs *blobStatter) Stat(ctx context.Context, dgst digest.Digest) (distribution.Descriptor, error) {
u, err := bs.ub.BuildBlobURL(bs.name, dgst)
if err != nil {
return distribution.Descriptor{}, err
}
resp, err := ls.client.Head(u)
resp, err := bs.client.Head(u)
if err != nil {
return distribution.Descriptor{}, err
}
defer resp.Body.Close()
switch {
case resp.StatusCode == http.StatusOK:
switch resp.StatusCode {
case http.StatusOK:
lengthHeader := resp.Header.Get("Content-Length")
length, err := strconv.ParseInt(lengthHeader, 10, 64)
if err != nil {
@@ -386,7 +388,7 @@ func (ls *blobStatter) Stat(ctx context.Context, dgst digest.Digest) (distributi
Length: length,
Digest: dgst,
}, nil
case resp.StatusCode == http.StatusNotFound:
case http.StatusNotFound:
return distribution.Descriptor{}, distribution.ErrBlobUnknown
default:
return distribution.Descriptor{}, handleErrorResponse(resp)