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alibaba.go
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alibaba.go
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// Copyright 2019 The OpenSDS Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package alibaba
import (
"context"
"crypto/md5"
_ "encoding/base64"
"encoding/hex"
"encoding/xml"
"errors"
"io"
"strings"
"time"
osdss3 "github.com/opensds/multi-cloud/s3/pkg/service"
"github.com/opensds/multi-cloud/s3/pkg/utils"
"github.com/aliyun/aliyun-oss-go-sdk/oss"
log "github.com/sirupsen/logrus"
backendpb "github.com/opensds/multi-cloud/backend/proto"
. "github.com/opensds/multi-cloud/s3/error"
dscommon "github.com/opensds/multi-cloud/s3/pkg/datastore/common"
"github.com/opensds/multi-cloud/s3/pkg/model"
pb "github.com/opensds/multi-cloud/s3/proto"
)
type OSSAdapter struct {
backend *backendpb.BackendDetail
client *oss.Client
}
func (ad *OSSAdapter) BucketDelete(ctx context.Context, in *pb.Bucket) error {
log.Info("Bucket delete is called in s3 alibaba-oss")
err := ad.client.DeleteBucket(in.Name)
if err != nil {
log.Error("the bucket deletion failed in s3 Alibaba-oss with error:%s", err.Error())
return err
}
log.Debug("The bucket deletion successful in s3 alibaba-oss")
return nil
}
func (ad *OSSAdapter) BucketCreate(ctx context.Context, input *pb.Bucket) error {
log.Info("Bucket create is called in s3 alibaba-oss")
err := ad.client.CreateBucket(input.Name)
if err != nil {
log.Error("the create bucket failed in s3 Alibaba-oss with error:%s", err.Error())
return err
}
log.Debug("The bucket creation successful in s3 Alibaba-oss")
return nil
}
func (ad *OSSAdapter) Put(ctx context.Context, stream io.Reader, object *pb.Object) (dscommon.PutResult, error) {
bucket := object.BucketName
result := dscommon.PutResult{}
objectId := object.ObjectKey
userMd5 := dscommon.GetMd5FromCtx(ctx)
size := object.Size
out, err := ad.client.Bucket(bucket)
if err != nil {
log.Info("Access bucket failed:%v", err)
return result, ErrInternalError
}
// Limit the reader to its provided size if specified.
var limitedDataReader io.Reader
if size > 0 { // request.ContentLength is -1 if length is unknown
limitedDataReader = io.LimitReader(stream, size)
} else {
limitedDataReader = stream
}
md5Writer := md5.New()
dataReader := io.TeeReader(limitedDataReader, md5Writer)
if object.Tier == 0 {
// default
object.Tier = utils.Tier1
}
storClass, err := osdss3.GetNameFromTier(object.Tier, utils.OSTYPE_ALIBABA)
if err != nil {
log.Infof("translate tier[%d] to aws storage class failed\n", object.Tier)
return result, ErrInternalError
}
var storageClass oss.StorageClassType
switch storClass {
case "Standard":
storageClass = oss.StorageStandard
case "IA":
storageClass = oss.StorageIA
case "Archive":
storageClass = oss.StorageArchive
}
if strings.HasSuffix(object.ObjectKey, "/") {
// Skip to add folder as Alibaba Go SDK of object upload do not support to create folder
} else {
err = out.PutObject(objectId, dataReader, oss.ObjectStorageClass(storageClass))
if err != nil {
log.Info("Upload to alibaba failed:%v", err)
return result, ErrInternalError
}
}
object.LastModified = time.Now().Unix()
log.Info("LastModified is:%v\n", object.LastModified)
calculatedMd5 := hex.EncodeToString(md5Writer.Sum(nil))
log.Debug("calculatedMd5:", calculatedMd5, ", userMd5:", userMd5)
if userMd5 != "" && userMd5 != calculatedMd5 {
log.Error("### MD5 not match, calculatedMd5:", calculatedMd5, "userMd5:", userMd5)
return result, errors.New(" Error in calculating calculatedMd5")
}
result.UpdateTime = time.Now().Unix()
result.ObjectId = objectId
result.Etag = calculatedMd5
result.Written = size
log.Info("Upload to oss successfully.")
return result, nil
}
func (ad *OSSAdapter) Get(ctx context.Context, object *pb.Object, start int64, end int64) (io.ReadCloser, error) {
bucket := object.BucketName
log.Infof("bucket is %v\n", bucket)
log.Infof("object key %v %v\n", object.ObjectKey, object.ObjectId)
objectId := object.BucketName + "/" + object.ObjectKey
alibabaBucket, err := ad.client.Bucket(bucket)
if err != nil {
log.Errorf("Access bucket failed:%v", err)
return nil, ErrGetFromBackendFailed
}
log.Println("Start Range ", start, " End Range ", end)
log.Println(" objectId ", objectId, " object.ObjectKey ", object.ObjectKey)
body, err := alibabaBucket.GetObject(objectId, oss.Range(start, end))
if err != nil {
log.Errorf("download object failed:%v", err)
return nil, ErrGetFromBackendFailed
}
log.Println(" download object ", body)
return body, nil
}
func (ad *OSSAdapter) Delete(ctx context.Context, object *pb.DeleteObjectInput) error {
bucket := object.Bucket
objectId := object.Key
getbucket, err := ad.client.Bucket(bucket)
if err != nil {
log.Errorf("get bucket failed, err:%v\n", err)
return ErrDeleteFromBackendFailed
}
// Delete an object.
err = getbucket.DeleteObject(objectId)
if err != nil {
log.Errorf("Delete object failed, err:%v\n", err)
return ErrDeleteFromBackendFailed
}
log.Infof("delete object[OSS] succeed, objectId:%s.\n", objectId)
return nil
}
func (ad *OSSAdapter) ChangeStorageClass(ctx context.Context, object *pb.Object, newClass *string) error {
log.Infof("change storage class[OSS] of object[%s] to %s .\n", object.ObjectId, newClass)
bucket := object.BucketName
objectId := object.ObjectId
alibabaBucket, err := ad.client.Bucket(bucket)
srcObjectKey := object.BucketName + "/" + object.ObjectKey
var StorClass oss.StorageClassType
switch *newClass {
case "IA":
StorClass = oss.StorageIA
case "Archive":
StorClass = oss.StorageArchive
default:
log.Infof("[OSS] unSpport storage class:%s", newClass)
return ErrInvalidStorageClass
}
_, err = alibabaBucket.CopyObject(srcObjectKey, objectId, oss.ObjectStorageClass(StorClass))
if err != nil {
log.Errorf("[OSS] change storage class of object[%s] to %s failed: %v\n", object.ObjectId, newClass, err)
return ErrPutToBackendFailed
} else {
log.Infof("[OSS] change storage class of object[%s] to %s succeed.\n", object.ObjectId, newClass)
}
return nil
}
func (ad *OSSAdapter) Copy(ctx context.Context, stream io.Reader, target *pb.Object) (result dscommon.PutResult, err error) {
log.Errorf("Copy[Alibaba-OSS] not implemented")
err = ErrInternalError
return
}
func (ad *OSSAdapter) InitMultipartUpload(ctx context.Context, object *pb.Object) (*pb.MultipartUpload, error) {
bucket := object.BucketName
objectId := object.ObjectKey
log.Infof("bucket = %v,objectId = %v\n", bucket, objectId)
multipartUpload := &pb.MultipartUpload{}
getBucket, err := ad.client.Bucket(bucket)
if err != nil {
log.Infof("get bucket failed, err:%v\n", err)
return nil, ErrInternalError
}
res, err := getBucket.InitiateMultipartUpload(objectId)
if err != nil {
log.Infof("Init multipart upload failed, err:%v\n", err)
return nil, ErrBackendInitMultipartFailed
} else {
log.Infof("Init s3 multipart upload succeed, UploadId:%s\n", res.UploadID)
multipartUpload.Bucket = object.BucketName
multipartUpload.Key = object.ObjectKey
multipartUpload.UploadId = res.UploadID
multipartUpload.ObjectId = objectId
return multipartUpload, nil
}
}
func (ad *OSSAdapter) UploadPart(ctx context.Context, stream io.Reader, multipartUpload *pb.MultipartUpload, partNumber int64, upBytes int64) (*model.UploadPartResult, error) {
tries := 1
bucket := multipartUpload.Bucket
newObjectKey := multipartUpload.Key
input := oss.InitiateMultipartUploadResult{
UploadID: multipartUpload.UploadId,
Bucket: bucket,
Key: newObjectKey,
}
getBucket, err := ad.client.Bucket(bucket)
if err != nil {
log.Infof("get bucket failed, err:%v\n", err)
return nil, ErrInternalError
}
for tries <= 3 {
upRes, err := getBucket.UploadPart(input, stream, upBytes, int(partNumber))
if err != nil {
if tries == 3 {
log.Infof("[ERROR]Upload part to alibaba failed. err:%v\n", err)
return nil, ErrPutToBackendFailed
}
log.Infof("Retrying to upload part#%d ,err:%s\n", partNumber, err)
tries++
} else {
log.Infof("Uploaded part #%d, ETag:%s\n", upRes.PartNumber, upRes.ETag)
result := &model.UploadPartResult{
ETag: upRes.ETag,
PartNumber: int64(upRes.PartNumber)}
return result, nil
}
}
return nil, nil
}
func (ad *OSSAdapter) CompleteMultipartUpload(ctx context.Context, multipartUpload *pb.MultipartUpload,
completeUpload *model.CompleteMultipartUpload) (*model.CompleteMultipartUploadResult, error) {
bucket := multipartUpload.Bucket
newObjectKey := multipartUpload.Key
input := oss.InitiateMultipartUploadResult{
XMLName: xml.Name{"", "InitiateMultipartUploadResult"},
Bucket: bucket,
Key: newObjectKey,
UploadID: multipartUpload.UploadId,
}
log.Infof("etag partnumber :%v %v \n", multipartUpload.UploadId, newObjectKey)
var completeParts []oss.UploadPart
for _, p := range completeUpload.Parts {
completePart := oss.UploadPart{
ETag: strings.ToUpper(p.ETag),
PartNumber: int(p.PartNumber),
}
log.Infof("etag partnumber :%v %v \n", p.ETag, p.PartNumber)
completeParts = append(completeParts, completePart)
}
//completeParts[0].ETag
log.Infof("etag alibaba:%v \n", completeParts[0].ETag)
getBucket, err := ad.client.Bucket(bucket)
if err != nil {
log.Infof("get bucket failed, err:%v\n", err)
return nil, ErrInternalError
}
resp, err := getBucket.CompleteMultipartUpload(input, completeParts)
if err != nil {
log.Infof("completeMultipartUpload failed, err:%v\n", err)
return nil, ErrBackendCompleteMultipartFailed
}
result := &model.CompleteMultipartUploadResult{
Xmlns: model.Xmlns,
Location: resp.Location,
Bucket: multipartUpload.Bucket,
Key: multipartUpload.Key,
ETag: resp.ETag,
}
log.Infof("completeMultipartUpload successfully, resp:%v\n", resp)
return result, nil
}
func (ad *OSSAdapter) AbortMultipartUpload(ctx context.Context, multipartUpload *pb.MultipartUpload) error {
bucket := multipartUpload.Bucket
newObjectKey := multipartUpload.Key
input := oss.InitiateMultipartUploadResult{
UploadID: multipartUpload.UploadId,
Bucket: bucket,
Key: newObjectKey,
}
getBucket, err := ad.client.Bucket(bucket)
if err != nil {
log.Infof("get bucket failed, err:%v\n", err)
return ErrInternalError
}
err = getBucket.AbortMultipartUpload(input)
if err != nil {
log.Infof("abortMultipartUpload failed, err:%v\n", err)
return ErrBackendAbortMultipartFailed
} else {
log.Infof("abortMultipartUpload successfully.\n")
}
return nil
}
func (ad *OSSAdapter) ListParts(context context.Context, listParts *pb.ListParts) (*model.ListPartsOutput, error) {
bucket := listParts.Bucket
if context.Value("operation") == "listParts" {
input := oss.InitiateMultipartUploadResult{
UploadID: listParts.UploadId,
Bucket: bucket,
Key: listParts.Key,
}
getBucket, err := ad.client.Bucket(bucket)
if err != nil {
log.Infof("get bucket failed, err:%v\n", err)
return nil, ErrInternalError
}
listPartsOutput, err := getBucket.ListUploadedParts(input)
if err != nil {
log.Infof("listpart failed, err:%v\n", err)
return nil, ErrInternalError
} else {
listParts := &model.ListPartsOutput{}
listParts.Bucket = listPartsOutput.Bucket
listParts.Key = listPartsOutput.Key
listParts.UploadId = listPartsOutput.UploadID
listParts.MaxParts = listPartsOutput.MaxParts
for _, p := range listPartsOutput.UploadedParts {
parts := model.Part{
ETag: p.ETag,
PartNumber: int64(p.PartNumber),
}
listParts.Parts = append(listParts.Parts, parts)
}
log.Info("ListParts successfully")
return listParts, nil
}
}
return nil, nil
}
func (ad *OSSAdapter) Restore(ctx context.Context, target *pb.Restore) error {
return nil
}
func (ad *OSSAdapter) BackendCheck(ctx context.Context, backendDetail *pb.BackendDetailS3) error {
return nil
}
func (ad *OSSAdapter) Close() error {
//TODO
return nil
}