package S3Sink import ( "bytes" "context" "fmt" "io" "github.com/aws/aws-sdk-go/aws" "github.com/aws/aws-sdk-go/aws/awserr" "github.com/aws/aws-sdk-go/service/s3" "github.com/chrislusf/seaweedfs/weed/filer" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/seaweedfs/weed/util" ) func (s3sink *S3Sink) deleteObject(key string) error { input := &s3.DeleteObjectInput{ Bucket: aws.String(s3sink.bucket), Key: aws.String(key), } result, err := s3sink.conn.DeleteObject(input) if err == nil { glog.V(0).Infof("[%s] delete %s: %v", s3sink.bucket, key, result) } else { glog.Errorf("[%s] delete %s: %v", s3sink.bucket, key, err) } return err } func (s3sink *S3Sink) createMultipartUpload(key string, entry *filer_pb.Entry) (uploadId string, err error) { input := &s3.CreateMultipartUploadInput{ Bucket: aws.String(s3sink.bucket), Key: aws.String(key), ContentType: aws.String(entry.Attributes.Mime), } result, err := s3sink.conn.CreateMultipartUpload(input) if err == nil { glog.V(0).Infof("[%s] createMultipartUpload %s: %v", s3sink.bucket, key, result) } else { glog.Errorf("[%s] createMultipartUpload %s: %v", s3sink.bucket, key, err) return "", err } return *result.UploadId, err } func (s3sink *S3Sink) abortMultipartUpload(key, uploadId string) error { input := &s3.AbortMultipartUploadInput{ Bucket: aws.String(s3sink.bucket), Key: aws.String(key), UploadId: aws.String(uploadId), } result, err := s3sink.conn.AbortMultipartUpload(input) if err != nil { if aerr, ok := err.(awserr.Error); ok { switch aerr.Code() { case s3.ErrCodeNoSuchUpload: glog.Errorf("[%s] abortMultipartUpload %s: %v %v", s3sink.bucket, key, s3.ErrCodeNoSuchUpload, aerr.Error()) default: glog.Errorf("[%s] abortMultipartUpload %s: %v", s3sink.bucket, key, aerr.Error()) } } else { // Print the error, cast err to awserr.Error to get the Code and // Message from an error. glog.Errorf("[%s] abortMultipartUpload %s: %v", s3sink.bucket, key, aerr.Error()) } return err } glog.V(0).Infof("[%s] abortMultipartUpload %s: %v", s3sink.bucket, key, result) return nil } // To complete multipart upload func (s3sink *S3Sink) completeMultipartUpload(ctx context.Context, key, uploadId string, parts []*s3.CompletedPart) error { input := &s3.CompleteMultipartUploadInput{ Bucket: aws.String(s3sink.bucket), Key: aws.String(key), UploadId: aws.String(uploadId), MultipartUpload: &s3.CompletedMultipartUpload{ Parts: parts, }, } result, err := s3sink.conn.CompleteMultipartUpload(input) if err == nil { glog.V(0).Infof("[%s] completeMultipartUpload %s: %v", s3sink.bucket, key, result) } else { glog.Errorf("[%s] completeMultipartUpload %s: %v", s3sink.bucket, key, err) } return err } // To upload a part func (s3sink *S3Sink) uploadPart(key, uploadId string, partId int, chunk *filer.ChunkView) (*s3.CompletedPart, error) { var readSeeker io.ReadSeeker readSeeker, err := s3sink.buildReadSeeker(chunk) if err != nil { glog.Errorf("[%s] uploadPart %s %d read: %v", s3sink.bucket, key, partId, err) return nil, fmt.Errorf("[%s] uploadPart %s %d read: %v", s3sink.bucket, key, partId, err) } input := &s3.UploadPartInput{ Body: readSeeker, Bucket: aws.String(s3sink.bucket), Key: aws.String(key), PartNumber: aws.Int64(int64(partId)), UploadId: aws.String(uploadId), } result, err := s3sink.conn.UploadPart(input) if err == nil { glog.V(0).Infof("[%s] uploadPart %s %d upload: %v", s3sink.bucket, key, partId, result) } else { glog.Errorf("[%s] uploadPart %s %d upload: %v", s3sink.bucket, key, partId, err) } part := &s3.CompletedPart{ ETag: result.ETag, PartNumber: aws.Int64(int64(partId)), } return part, err } // To upload a part by copying byte range from an existing object as data source func (s3sink *S3Sink) uploadPartCopy(key, uploadId string, partId int64, copySource string, sourceStart, sourceStop int) error { input := &s3.UploadPartCopyInput{ Bucket: aws.String(s3sink.bucket), CopySource: aws.String(fmt.Sprintf("/%s/%s", s3sink.bucket, copySource)), CopySourceRange: aws.String(fmt.Sprintf("bytes=%d-%d", sourceStart, sourceStop)), Key: aws.String(key), PartNumber: aws.Int64(partId), UploadId: aws.String(uploadId), } result, err := s3sink.conn.UploadPartCopy(input) if err == nil { glog.V(0).Infof("[%s] uploadPartCopy %s %d: %v", s3sink.bucket, key, partId, result) } else { glog.Errorf("[%s] uploadPartCopy %s %d: %v", s3sink.bucket, key, partId, err) } return err } func (s3sink *S3Sink) buildReadSeeker(chunk *filer.ChunkView) (io.ReadSeeker, error) { fileUrls, err := s3sink.filerSource.LookupFileId(chunk.FileId) if err != nil { return nil, err } buf := make([]byte, chunk.Size) for _, fileUrl := range fileUrls { _, err = util.ReadUrl(fileUrl+"?readDeleted=true", nil, false, false, chunk.Offset, int(chunk.Size), buf) if err != nil { glog.V(1).Infof("read from %s: %v", fileUrl, err) } else { break } } return bytes.NewReader(buf), nil }