7ca24a7f5a
Signed-off-by: liuchang0812 <liuchang0812@gmail.com>
790 lines
21 KiB
Go
790 lines
21 KiB
Go
// Package oss provides a storagedriver.StorageDriver implementation to
|
|
// store blobs in Aliyun OSS cloud storage.
|
|
//
|
|
// This package leverages the denverdino/aliyungo client library for interfacing with
|
|
// oss.
|
|
//
|
|
// Because OSS is a key, value store the Stat call does not support last modification
|
|
// time for directories (directories are an abstraction for key, value stores)
|
|
//
|
|
// +build include_oss
|
|
|
|
package oss
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"reflect"
|
|
"strconv"
|
|
"strings"
|
|
"sync"
|
|
"time"
|
|
|
|
"github.com/docker/distribution/context"
|
|
|
|
"github.com/Sirupsen/logrus"
|
|
"github.com/denverdino/aliyungo/oss"
|
|
storagedriver "github.com/docker/distribution/registry/storage/driver"
|
|
"github.com/docker/distribution/registry/storage/driver/base"
|
|
"github.com/docker/distribution/registry/storage/driver/factory"
|
|
)
|
|
|
|
const driverName = "oss"
|
|
|
|
// minChunkSize defines the minimum multipart upload chunk size
|
|
// OSS API requires multipart upload chunks to be at least 5MB
|
|
const minChunkSize = 5 << 20
|
|
|
|
const defaultChunkSize = 2 * minChunkSize
|
|
const defaultTimeout = 2 * time.Minute // 2 minute timeout per chunk
|
|
|
|
// listMax is the largest amount of objects you can request from OSS in a list call
|
|
const listMax = 1000
|
|
|
|
//DriverParameters A struct that encapsulates all of the driver parameters after all values have been set
|
|
type DriverParameters struct {
|
|
AccessKeyID string
|
|
AccessKeySecret string
|
|
Bucket string
|
|
Region oss.Region
|
|
Internal bool
|
|
Encrypt bool
|
|
Secure bool
|
|
ChunkSize int64
|
|
RootDirectory string
|
|
Endpoint string
|
|
}
|
|
|
|
func init() {
|
|
factory.Register(driverName, &ossDriverFactory{})
|
|
}
|
|
|
|
// ossDriverFactory implements the factory.StorageDriverFactory interface
|
|
type ossDriverFactory struct{}
|
|
|
|
func (factory *ossDriverFactory) Create(parameters map[string]interface{}) (storagedriver.StorageDriver, error) {
|
|
return FromParameters(parameters)
|
|
}
|
|
|
|
type driver struct {
|
|
Client *oss.Client
|
|
Bucket *oss.Bucket
|
|
ChunkSize int64
|
|
Encrypt bool
|
|
RootDirectory string
|
|
|
|
pool sync.Pool // pool []byte buffers used for WriteStream
|
|
zeros []byte // shared, zero-valued buffer used for WriteStream
|
|
}
|
|
|
|
type baseEmbed struct {
|
|
base.Base
|
|
}
|
|
|
|
// Driver is a storagedriver.StorageDriver implementation backed by Aliyun OSS
|
|
// Objects are stored at absolute keys in the provided bucket.
|
|
type Driver struct {
|
|
baseEmbed
|
|
}
|
|
|
|
// FromParameters constructs a new Driver with a given parameters map
|
|
// Required parameters:
|
|
// - accesskey
|
|
// - secretkey
|
|
// - region
|
|
// - bucket
|
|
// - encrypt
|
|
func FromParameters(parameters map[string]interface{}) (*Driver, error) {
|
|
// Providing no values for these is valid in case the user is authenticating
|
|
// with an IAM on an ec2 instance (in which case the instance credentials will
|
|
// be summoned when GetAuth is called)
|
|
accessKey, ok := parameters["accesskeyid"]
|
|
if !ok {
|
|
return nil, fmt.Errorf("No accesskeyid parameter provided")
|
|
}
|
|
secretKey, ok := parameters["accesskeysecret"]
|
|
if !ok {
|
|
return nil, fmt.Errorf("No accesskeysecret parameter provided")
|
|
}
|
|
|
|
regionName, ok := parameters["region"]
|
|
if !ok || fmt.Sprint(regionName) == "" {
|
|
return nil, fmt.Errorf("No region parameter provided")
|
|
}
|
|
|
|
bucket, ok := parameters["bucket"]
|
|
if !ok || fmt.Sprint(bucket) == "" {
|
|
return nil, fmt.Errorf("No bucket parameter provided")
|
|
}
|
|
|
|
internalBool := false
|
|
internal, ok := parameters["internal"]
|
|
if ok {
|
|
internalBool, ok = internal.(bool)
|
|
if !ok {
|
|
return nil, fmt.Errorf("The internal parameter should be a boolean")
|
|
}
|
|
}
|
|
|
|
encryptBool := false
|
|
encrypt, ok := parameters["encrypt"]
|
|
if ok {
|
|
encryptBool, ok = encrypt.(bool)
|
|
if !ok {
|
|
return nil, fmt.Errorf("The encrypt parameter should be a boolean")
|
|
}
|
|
}
|
|
|
|
secureBool := true
|
|
secure, ok := parameters["secure"]
|
|
if ok {
|
|
secureBool, ok = secure.(bool)
|
|
if !ok {
|
|
return nil, fmt.Errorf("The secure parameter should be a boolean")
|
|
}
|
|
}
|
|
|
|
chunkSize := int64(defaultChunkSize)
|
|
chunkSizeParam, ok := parameters["chunksize"]
|
|
if ok {
|
|
switch v := chunkSizeParam.(type) {
|
|
case string:
|
|
vv, err := strconv.ParseInt(v, 0, 64)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("chunksize parameter must be an integer, %v invalid", chunkSizeParam)
|
|
}
|
|
chunkSize = vv
|
|
case int64:
|
|
chunkSize = v
|
|
case int, uint, int32, uint32, uint64:
|
|
chunkSize = reflect.ValueOf(v).Convert(reflect.TypeOf(chunkSize)).Int()
|
|
default:
|
|
return nil, fmt.Errorf("invalid valud for chunksize: %#v", chunkSizeParam)
|
|
}
|
|
|
|
if chunkSize < minChunkSize {
|
|
return nil, fmt.Errorf("The chunksize %#v parameter should be a number that is larger than or equal to %d", chunkSize, minChunkSize)
|
|
}
|
|
}
|
|
|
|
rootDirectory, ok := parameters["rootdirectory"]
|
|
if !ok {
|
|
rootDirectory = ""
|
|
}
|
|
|
|
endpoint, ok := parameters["endpoint"]
|
|
if !ok {
|
|
endpoint = ""
|
|
}
|
|
|
|
params := DriverParameters{
|
|
AccessKeyID: fmt.Sprint(accessKey),
|
|
AccessKeySecret: fmt.Sprint(secretKey),
|
|
Bucket: fmt.Sprint(bucket),
|
|
Region: oss.Region(fmt.Sprint(regionName)),
|
|
ChunkSize: chunkSize,
|
|
RootDirectory: fmt.Sprint(rootDirectory),
|
|
Encrypt: encryptBool,
|
|
Secure: secureBool,
|
|
Internal: internalBool,
|
|
Endpoint: fmt.Sprint(endpoint),
|
|
}
|
|
|
|
return New(params)
|
|
}
|
|
|
|
// New constructs a new Driver with the given Aliyun credentials, region, encryption flag, and
|
|
// bucketName
|
|
func New(params DriverParameters) (*Driver, error) {
|
|
|
|
client := oss.NewOSSClient(params.Region, params.Internal, params.AccessKeyID, params.AccessKeySecret, params.Secure)
|
|
client.SetEndpoint(params.Endpoint)
|
|
bucket := client.Bucket(params.Bucket)
|
|
client.SetDebug(false)
|
|
|
|
// Validate that the given credentials have at least read permissions in the
|
|
// given bucket scope.
|
|
if _, err := bucket.List(strings.TrimRight(params.RootDirectory, "/"), "", "", 1); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// TODO(tg123): Currently multipart uploads have no timestamps, so this would be unwise
|
|
// if you initiated a new OSS client while another one is running on the same bucket.
|
|
|
|
d := &driver{
|
|
Client: client,
|
|
Bucket: bucket,
|
|
ChunkSize: params.ChunkSize,
|
|
Encrypt: params.Encrypt,
|
|
RootDirectory: params.RootDirectory,
|
|
zeros: make([]byte, params.ChunkSize),
|
|
}
|
|
|
|
d.pool.New = func() interface{} {
|
|
return make([]byte, d.ChunkSize)
|
|
}
|
|
|
|
return &Driver{
|
|
baseEmbed: baseEmbed{
|
|
Base: base.Base{
|
|
StorageDriver: d,
|
|
},
|
|
},
|
|
}, nil
|
|
}
|
|
|
|
// Implement the storagedriver.StorageDriver interface
|
|
|
|
func (d *driver) Name() string {
|
|
return driverName
|
|
}
|
|
|
|
// GetContent retrieves the content stored at "path" as a []byte.
|
|
func (d *driver) GetContent(ctx context.Context, path string) ([]byte, error) {
|
|
content, err := d.Bucket.Get(d.ossPath(path))
|
|
if err != nil {
|
|
return nil, parseError(path, err)
|
|
}
|
|
return content, nil
|
|
}
|
|
|
|
// PutContent stores the []byte content at a location designated by "path".
|
|
func (d *driver) PutContent(ctx context.Context, path string, contents []byte) error {
|
|
return parseError(path, d.Bucket.Put(d.ossPath(path), contents, d.getContentType(), getPermissions(), d.getOptions()))
|
|
}
|
|
|
|
// ReadStream retrieves an io.ReadCloser for the content stored at "path" with a
|
|
// given byte offset.
|
|
func (d *driver) ReadStream(ctx context.Context, path string, offset int64) (io.ReadCloser, error) {
|
|
headers := make(http.Header)
|
|
headers.Add("Range", "bytes="+strconv.FormatInt(offset, 10)+"-")
|
|
|
|
resp, err := d.Bucket.GetResponseWithHeaders(d.ossPath(path), headers)
|
|
if err != nil {
|
|
return nil, parseError(path, err)
|
|
}
|
|
|
|
// Due to Aliyun OSS API, status 200 and whole object will be return instead of an
|
|
// InvalidRange error when range is invalid.
|
|
//
|
|
// OSS sever will always return http.StatusPartialContent if range is acceptable.
|
|
if resp.StatusCode != http.StatusPartialContent {
|
|
resp.Body.Close()
|
|
return ioutil.NopCloser(bytes.NewReader(nil)), nil
|
|
}
|
|
|
|
return resp.Body, nil
|
|
}
|
|
|
|
// WriteStream stores the contents of the provided io.Reader at a
|
|
// location designated by the given path. The driver will know it has
|
|
// received the full contents when the reader returns io.EOF. The number
|
|
// of successfully READ bytes will be returned, even if an error is
|
|
// returned. May be used to resume writing a stream by providing a nonzero
|
|
// offset. Offsets past the current size will write from the position
|
|
// beyond the end of the file.
|
|
func (d *driver) WriteStream(ctx context.Context, path string, offset int64, reader io.Reader) (totalRead int64, err error) {
|
|
partNumber := 1
|
|
bytesRead := 0
|
|
var putErrChan chan error
|
|
parts := []oss.Part{}
|
|
var part oss.Part
|
|
done := make(chan struct{}) // stopgap to free up waiting goroutines
|
|
|
|
multi, err := d.Bucket.InitMulti(d.ossPath(path), d.getContentType(), getPermissions(), d.getOptions())
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
buf := d.getbuf()
|
|
|
|
// We never want to leave a dangling multipart upload, our only consistent state is
|
|
// when there is a whole object at path. This is in order to remain consistent with
|
|
// the stat call.
|
|
//
|
|
// Note that if the machine dies before executing the defer, we will be left with a dangling
|
|
// multipart upload, which will eventually be cleaned up, but we will lose all of the progress
|
|
// made prior to the machine crashing.
|
|
defer func() {
|
|
if putErrChan != nil {
|
|
if putErr := <-putErrChan; putErr != nil {
|
|
err = putErr
|
|
}
|
|
}
|
|
|
|
if len(parts) > 0 {
|
|
if multi == nil {
|
|
// Parts should be empty if the multi is not initialized
|
|
panic("Unreachable")
|
|
} else {
|
|
if multi.Complete(parts) != nil {
|
|
multi.Abort()
|
|
}
|
|
}
|
|
}
|
|
|
|
d.putbuf(buf) // needs to be here to pick up new buf value
|
|
close(done) // free up any waiting goroutines
|
|
}()
|
|
|
|
// Fills from 0 to total from current
|
|
fromSmallCurrent := func(total int64) error {
|
|
current, err := d.ReadStream(ctx, path, 0)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
bytesRead = 0
|
|
for int64(bytesRead) < total {
|
|
//The loop should very rarely enter a second iteration
|
|
nn, err := current.Read(buf[bytesRead:total])
|
|
bytesRead += nn
|
|
if err != nil {
|
|
if err != io.EOF {
|
|
return err
|
|
}
|
|
|
|
break
|
|
}
|
|
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Fills from parameter to chunkSize from reader
|
|
fromReader := func(from int64) error {
|
|
bytesRead = 0
|
|
for from+int64(bytesRead) < d.ChunkSize {
|
|
nn, err := reader.Read(buf[from+int64(bytesRead):])
|
|
totalRead += int64(nn)
|
|
bytesRead += nn
|
|
|
|
if err != nil {
|
|
if err != io.EOF {
|
|
return err
|
|
}
|
|
|
|
break
|
|
}
|
|
}
|
|
|
|
if putErrChan == nil {
|
|
putErrChan = make(chan error)
|
|
} else {
|
|
if putErr := <-putErrChan; putErr != nil {
|
|
putErrChan = nil
|
|
return putErr
|
|
}
|
|
}
|
|
|
|
go func(bytesRead int, from int64, buf []byte) {
|
|
defer d.putbuf(buf) // this buffer gets dropped after this call
|
|
|
|
// DRAGONS(stevvooe): There are few things one might want to know
|
|
// about this section. First, the putErrChan is expecting an error
|
|
// and a nil or just a nil to come through the channel. This is
|
|
// covered by the silly defer below. The other aspect is the OSS
|
|
// retry backoff to deal with RequestTimeout errors. Even though
|
|
// the underlying OSS library should handle it, it doesn't seem to
|
|
// be part of the shouldRetry function (see denverdino/aliyungo/oss).
|
|
defer func() {
|
|
select {
|
|
case putErrChan <- nil: // for some reason, we do this no matter what.
|
|
case <-done:
|
|
return // ensure we don't leak the goroutine
|
|
}
|
|
}()
|
|
|
|
if bytesRead <= 0 {
|
|
return
|
|
}
|
|
|
|
var err error
|
|
var part oss.Part
|
|
|
|
part, err = multi.PutPartWithTimeout(int(partNumber), bytes.NewReader(buf[0:int64(bytesRead)+from]), defaultTimeout)
|
|
|
|
if err != nil {
|
|
logrus.Errorf("error putting part, aborting: %v", err)
|
|
select {
|
|
case putErrChan <- err:
|
|
case <-done:
|
|
return // don't leak the goroutine
|
|
}
|
|
}
|
|
|
|
// parts and partNumber are safe, because this function is the
|
|
// only one modifying them and we force it to be executed
|
|
// serially.
|
|
parts = append(parts, part)
|
|
partNumber++
|
|
}(bytesRead, from, buf)
|
|
|
|
buf = d.getbuf() // use a new buffer for the next call
|
|
return nil
|
|
}
|
|
|
|
if offset > 0 {
|
|
resp, err := d.Bucket.Head(d.ossPath(path), nil)
|
|
if err != nil {
|
|
if ossErr, ok := err.(*oss.Error); !ok || ossErr.StatusCode != http.StatusNotFound {
|
|
return 0, err
|
|
}
|
|
}
|
|
|
|
currentLength := int64(0)
|
|
if err == nil {
|
|
currentLength = resp.ContentLength
|
|
}
|
|
|
|
if currentLength >= offset {
|
|
if offset < d.ChunkSize {
|
|
// chunkSize > currentLength >= offset
|
|
if err = fromSmallCurrent(offset); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if err = fromReader(offset); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if totalRead+offset < d.ChunkSize {
|
|
return totalRead, nil
|
|
}
|
|
} else {
|
|
// currentLength >= offset >= chunkSize
|
|
_, part, err = multi.PutPartCopy(partNumber,
|
|
oss.CopyOptions{CopySourceOptions: "bytes=0-" + strconv.FormatInt(offset-1, 10)},
|
|
d.Bucket.Path(d.ossPath(path)))
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
parts = append(parts, part)
|
|
partNumber++
|
|
}
|
|
} else {
|
|
// Fills between parameters with 0s but only when to - from <= chunkSize
|
|
fromZeroFillSmall := func(from, to int64) error {
|
|
bytesRead = 0
|
|
for from+int64(bytesRead) < to {
|
|
nn, err := bytes.NewReader(d.zeros).Read(buf[from+int64(bytesRead) : to])
|
|
bytesRead += nn
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// Fills between parameters with 0s, making new parts
|
|
fromZeroFillLarge := func(from, to int64) error {
|
|
bytesRead64 := int64(0)
|
|
for to-(from+bytesRead64) >= d.ChunkSize {
|
|
part, err := multi.PutPartWithTimeout(int(partNumber), bytes.NewReader(d.zeros), defaultTimeout)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
bytesRead64 += d.ChunkSize
|
|
|
|
parts = append(parts, part)
|
|
partNumber++
|
|
}
|
|
|
|
return fromZeroFillSmall(0, (to-from)%d.ChunkSize)
|
|
}
|
|
|
|
// currentLength < offset
|
|
if currentLength < d.ChunkSize {
|
|
if offset < d.ChunkSize {
|
|
// chunkSize > offset > currentLength
|
|
if err = fromSmallCurrent(currentLength); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if err = fromZeroFillSmall(currentLength, offset); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if err = fromReader(offset); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if totalRead+offset < d.ChunkSize {
|
|
return totalRead, nil
|
|
}
|
|
} else {
|
|
// offset >= chunkSize > currentLength
|
|
if err = fromSmallCurrent(currentLength); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if err = fromZeroFillSmall(currentLength, d.ChunkSize); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
part, err = multi.PutPartWithTimeout(int(partNumber), bytes.NewReader(buf), defaultTimeout)
|
|
if err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
parts = append(parts, part)
|
|
partNumber++
|
|
|
|
//Zero fill from chunkSize up to offset, then some reader
|
|
if err = fromZeroFillLarge(d.ChunkSize, offset); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if err = fromReader(offset % d.ChunkSize); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if totalRead+(offset%d.ChunkSize) < d.ChunkSize {
|
|
return totalRead, nil
|
|
}
|
|
}
|
|
} else {
|
|
// offset > currentLength >= chunkSize
|
|
_, part, err = multi.PutPartCopy(partNumber,
|
|
oss.CopyOptions{},
|
|
d.Bucket.Path(d.ossPath(path)))
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
parts = append(parts, part)
|
|
partNumber++
|
|
|
|
//Zero fill from currentLength up to offset, then some reader
|
|
if err = fromZeroFillLarge(currentLength, offset); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if err = fromReader((offset - currentLength) % d.ChunkSize); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if totalRead+((offset-currentLength)%d.ChunkSize) < d.ChunkSize {
|
|
return totalRead, nil
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
for {
|
|
if err = fromReader(0); err != nil {
|
|
return totalRead, err
|
|
}
|
|
|
|
if int64(bytesRead) < d.ChunkSize {
|
|
break
|
|
}
|
|
}
|
|
|
|
return totalRead, nil
|
|
}
|
|
|
|
// Stat retrieves the FileInfo for the given path, including the current size
|
|
// in bytes and the creation time.
|
|
func (d *driver) Stat(ctx context.Context, path string) (storagedriver.FileInfo, error) {
|
|
listResponse, err := d.Bucket.List(d.ossPath(path), "", "", 1)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
fi := storagedriver.FileInfoFields{
|
|
Path: path,
|
|
}
|
|
|
|
if len(listResponse.Contents) == 1 {
|
|
if listResponse.Contents[0].Key != d.ossPath(path) {
|
|
fi.IsDir = true
|
|
} else {
|
|
fi.IsDir = false
|
|
fi.Size = listResponse.Contents[0].Size
|
|
|
|
timestamp, err := time.Parse(time.RFC3339Nano, listResponse.Contents[0].LastModified)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
fi.ModTime = timestamp
|
|
}
|
|
} else if len(listResponse.CommonPrefixes) == 1 {
|
|
fi.IsDir = true
|
|
} else {
|
|
return nil, storagedriver.PathNotFoundError{Path: path}
|
|
}
|
|
|
|
return storagedriver.FileInfoInternal{FileInfoFields: fi}, nil
|
|
}
|
|
|
|
// List returns a list of the objects that are direct descendants of the given path.
|
|
func (d *driver) List(ctx context.Context, opath string) ([]string, error) {
|
|
path := opath
|
|
if path != "/" && opath[len(path)-1] != '/' {
|
|
path = path + "/"
|
|
}
|
|
|
|
// This is to cover for the cases when the rootDirectory of the driver is either "" or "/".
|
|
// In those cases, there is no root prefix to replace and we must actually add a "/" to all
|
|
// results in order to keep them as valid paths as recognized by storagedriver.PathRegexp
|
|
prefix := ""
|
|
if d.ossPath("") == "" {
|
|
prefix = "/"
|
|
}
|
|
|
|
listResponse, err := d.Bucket.List(d.ossPath(path), "/", "", listMax)
|
|
if err != nil {
|
|
return nil, parseError(opath, err)
|
|
}
|
|
|
|
files := []string{}
|
|
directories := []string{}
|
|
|
|
for {
|
|
for _, key := range listResponse.Contents {
|
|
files = append(files, strings.Replace(key.Key, d.ossPath(""), prefix, 1))
|
|
}
|
|
|
|
for _, commonPrefix := range listResponse.CommonPrefixes {
|
|
directories = append(directories, strings.Replace(commonPrefix[0:len(commonPrefix)-1], d.ossPath(""), prefix, 1))
|
|
}
|
|
|
|
if listResponse.IsTruncated {
|
|
listResponse, err = d.Bucket.List(d.ossPath(path), "/", listResponse.NextMarker, listMax)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
} else {
|
|
break
|
|
}
|
|
}
|
|
|
|
if opath != "/" {
|
|
if len(files) == 0 && len(directories) == 0 {
|
|
// Treat empty response as missing directory, since we don't actually
|
|
// have directories in s3.
|
|
return nil, storagedriver.PathNotFoundError{Path: opath}
|
|
}
|
|
}
|
|
|
|
return append(files, directories...), nil
|
|
}
|
|
|
|
// Move moves an object stored at sourcePath to destPath, removing the original
|
|
// object.
|
|
func (d *driver) Move(ctx context.Context, sourcePath string, destPath string) error {
|
|
logrus.Infof("Move from %s to %s", d.ossPath(sourcePath), d.ossPath(destPath))
|
|
|
|
err := d.Bucket.CopyLargeFile(d.ossPath(sourcePath), d.ossPath(destPath),
|
|
d.getContentType(),
|
|
getPermissions(),
|
|
oss.Options{})
|
|
if err != nil {
|
|
logrus.Errorf("Failed for move from %s to %s: %v", d.ossPath(sourcePath), d.ossPath(destPath), err)
|
|
return parseError(sourcePath, err)
|
|
}
|
|
|
|
return d.Delete(ctx, sourcePath)
|
|
}
|
|
|
|
// Delete recursively deletes all objects stored at "path" and its subpaths.
|
|
func (d *driver) Delete(ctx context.Context, path string) error {
|
|
listResponse, err := d.Bucket.List(d.ossPath(path), "", "", listMax)
|
|
if err != nil || len(listResponse.Contents) == 0 {
|
|
return storagedriver.PathNotFoundError{Path: path}
|
|
}
|
|
|
|
ossObjects := make([]oss.Object, listMax)
|
|
|
|
for len(listResponse.Contents) > 0 {
|
|
for index, key := range listResponse.Contents {
|
|
ossObjects[index].Key = key.Key
|
|
}
|
|
|
|
err := d.Bucket.DelMulti(oss.Delete{Quiet: false, Objects: ossObjects[0:len(listResponse.Contents)]})
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
|
|
listResponse, err = d.Bucket.List(d.ossPath(path), "", "", listMax)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// URLFor returns a URL which may be used to retrieve the content stored at the given path.
|
|
// May return an UnsupportedMethodErr in certain StorageDriver implementations.
|
|
func (d *driver) URLFor(ctx context.Context, path string, options map[string]interface{}) (string, error) {
|
|
methodString := "GET"
|
|
method, ok := options["method"]
|
|
if ok {
|
|
methodString, ok = method.(string)
|
|
if !ok || (methodString != "GET") {
|
|
return "", storagedriver.ErrUnsupportedMethod{}
|
|
}
|
|
}
|
|
|
|
expiresTime := time.Now().Add(20 * time.Minute)
|
|
|
|
expires, ok := options["expiry"]
|
|
if ok {
|
|
et, ok := expires.(time.Time)
|
|
if ok {
|
|
expiresTime = et
|
|
}
|
|
}
|
|
logrus.Infof("methodString: %s, expiresTime: %v", methodString, expiresTime)
|
|
signedURL := d.Bucket.SignedURLWithMethod(methodString, d.ossPath(path), expiresTime, nil, nil)
|
|
logrus.Infof("signed URL: %s", signedURL)
|
|
return signedURL, nil
|
|
}
|
|
|
|
func (d *driver) ossPath(path string) string {
|
|
return strings.TrimLeft(strings.TrimRight(d.RootDirectory, "/")+path, "/")
|
|
}
|
|
|
|
func parseError(path string, err error) error {
|
|
if ossErr, ok := err.(*oss.Error); ok && ossErr.StatusCode == http.StatusNotFound && (ossErr.Code == "NoSuchKey" || ossErr.Code == "") {
|
|
return storagedriver.PathNotFoundError{Path: path}
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
func hasCode(err error, code string) bool {
|
|
ossErr, ok := err.(*oss.Error)
|
|
return ok && ossErr.Code == code
|
|
}
|
|
|
|
func (d *driver) getOptions() oss.Options {
|
|
return oss.Options{ServerSideEncryption: d.Encrypt}
|
|
}
|
|
|
|
func getPermissions() oss.ACL {
|
|
return oss.Private
|
|
}
|
|
|
|
func (d *driver) getContentType() string {
|
|
return "application/octet-stream"
|
|
}
|
|
|
|
// getbuf returns a buffer from the driver's pool with length d.ChunkSize.
|
|
func (d *driver) getbuf() []byte {
|
|
return d.pool.Get().([]byte)
|
|
}
|
|
|
|
func (d *driver) putbuf(p []byte) {
|
|
copy(p, d.zeros)
|
|
d.pool.Put(p)
|
|
}
|