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package s3api
import ( "encoding/xml" "fmt" "path/filepath" "strconv" "strings" "time"
"github.com/aws/aws-sdk-go/aws" "github.com/aws/aws-sdk-go/service/s3" "github.com/google/uuid"
"github.com/chrislusf/seaweedfs/weed/filer2" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" )
type InitiateMultipartUploadResult struct { XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ InitiateMultipartUploadResult"` s3.CreateMultipartUploadOutput }
func (s3a *S3ApiServer) createMultipartUpload(input *s3.CreateMultipartUploadInput) (output *InitiateMultipartUploadResult, code ErrorCode) { uploadId, _ := uuid.NewRandom() uploadIdString := uploadId.String()
if err := s3a.mkdir(s3a.genUploadsFolder(*input.Bucket), uploadIdString, func(entry *filer_pb.Entry) { if entry.Extended == nil { entry.Extended = make(map[string][]byte) } entry.Extended["key"] = []byte(*input.Key) }); err != nil { glog.Errorf("NewMultipartUpload error: %v", err) return nil, ErrInternalError }
output = &InitiateMultipartUploadResult{ CreateMultipartUploadOutput: s3.CreateMultipartUploadOutput{ Bucket: input.Bucket, Key: objectKey(input.Key), UploadId: aws.String(uploadIdString), }, }
return }
type CompleteMultipartUploadResult struct { XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CompleteMultipartUploadResult"` s3.CompleteMultipartUploadOutput }
func (s3a *S3ApiServer) completeMultipartUpload(input *s3.CompleteMultipartUploadInput) (output *CompleteMultipartUploadResult, code ErrorCode) {
uploadDirectory := s3a.genUploadsFolder(*input.Bucket) + "/" + *input.UploadId
entries, err := s3a.list(uploadDirectory, "", "", false, 0) if err != nil { glog.Errorf("completeMultipartUpload %s %s error: %v", *input.Bucket, *input.UploadId, err) return nil, ErrNoSuchUpload }
var finalParts []*filer_pb.FileChunk var offset int64
for _, entry := range entries { if strings.HasSuffix(entry.Name, ".part") && !entry.IsDirectory { for _, chunk := range entry.Chunks { p := &filer_pb.FileChunk{ FileId: chunk.GetFileIdString(), Offset: offset, Size: chunk.Size, Mtime: chunk.Mtime, ETag: chunk.ETag, } finalParts = append(finalParts, p) offset += int64(chunk.Size) } } }
entryName := filepath.Base(*input.Key) dirName := filepath.Dir(*input.Key) if dirName == "." { dirName = "" } if strings.HasPrefix(dirName, "/") { dirName = dirName[1:] } dirName = fmt.Sprintf("%s/%s/%s", s3a.option.BucketsPath, *input.Bucket, dirName)
// remove suffix '/'
if strings.HasSuffix(dirName, "/") { dirName = dirName[:len(dirName)-1] }
err = s3a.mkFile(dirName, entryName, finalParts)
if err != nil { glog.Errorf("completeMultipartUpload %s/%s error: %v", dirName, entryName, err) return nil, ErrInternalError }
output = &CompleteMultipartUploadResult{ CompleteMultipartUploadOutput: s3.CompleteMultipartUploadOutput{ Location: aws.String(fmt.Sprintf("http://%s%s/%s", s3a.option.Filer, dirName, entryName)), Bucket: input.Bucket, ETag: aws.String("\"" + filer2.ETagChunks(finalParts) + "\""), Key: objectKey(input.Key), }, }
if err = s3a.rm(s3a.genUploadsFolder(*input.Bucket), *input.UploadId, false, true); err != nil { glog.V(1).Infof("completeMultipartUpload cleanup %s upload %s: %v", *input.Bucket, *input.UploadId, err) }
return }
func (s3a *S3ApiServer) abortMultipartUpload(input *s3.AbortMultipartUploadInput) (output *s3.AbortMultipartUploadOutput, code ErrorCode) {
exists, err := s3a.exists(s3a.genUploadsFolder(*input.Bucket), *input.UploadId, true) if err != nil { glog.V(1).Infof("bucket %s abort upload %s: %v", *input.Bucket, *input.UploadId, err) return nil, ErrNoSuchUpload } if exists { err = s3a.rm(s3a.genUploadsFolder(*input.Bucket), *input.UploadId, true, true) } if err != nil { glog.V(1).Infof("bucket %s remove upload %s: %v", *input.Bucket, *input.UploadId, err) return nil, ErrInternalError }
return &s3.AbortMultipartUploadOutput{}, ErrNone }
type ListMultipartUploadsResult struct { XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListMultipartUploadsResult"` s3.ListMultipartUploadsOutput }
func (s3a *S3ApiServer) listMultipartUploads(input *s3.ListMultipartUploadsInput) (output *ListMultipartUploadsResult, code ErrorCode) {
output = &ListMultipartUploadsResult{ ListMultipartUploadsOutput: s3.ListMultipartUploadsOutput{ Bucket: input.Bucket, Delimiter: input.Delimiter, EncodingType: input.EncodingType, KeyMarker: input.KeyMarker, MaxUploads: input.MaxUploads, Prefix: input.Prefix, }, }
entries, err := s3a.list(s3a.genUploadsFolder(*input.Bucket), *input.Prefix, *input.KeyMarker, true, uint32(*input.MaxUploads)) if err != nil { glog.Errorf("listMultipartUploads %s error: %v", *input.Bucket, err) return }
for _, entry := range entries { if entry.Extended != nil { key := entry.Extended["key"] output.Uploads = append(output.Uploads, &s3.MultipartUpload{ Key: objectKey(aws.String(string(key))), UploadId: aws.String(entry.Name), }) } }
return }
type ListPartsResult struct { XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListPartsResult"` s3.ListPartsOutput }
func (s3a *S3ApiServer) listObjectParts(input *s3.ListPartsInput) (output *ListPartsResult, code ErrorCode) { output = &ListPartsResult{ ListPartsOutput: s3.ListPartsOutput{ Bucket: input.Bucket, Key: objectKey(input.Key), UploadId: input.UploadId, MaxParts: input.MaxParts, // the maximum number of parts to return.
PartNumberMarker: input.PartNumberMarker, // the part number starts after this, exclusive
}, }
entries, err := s3a.list(s3a.genUploadsFolder(*input.Bucket)+"/"+*input.UploadId, "", fmt.Sprintf("%04d.part", *input.PartNumberMarker), false, uint32(*input.MaxParts)) if err != nil { glog.Errorf("listObjectParts %s %s error: %v", *input.Bucket, *input.UploadId, err) return nil, ErrNoSuchUpload }
for _, entry := range entries { if strings.HasSuffix(entry.Name, ".part") && !entry.IsDirectory { partNumberString := entry.Name[:len(entry.Name)-len(".part")] partNumber, err := strconv.Atoi(partNumberString) if err != nil { glog.Errorf("listObjectParts %s %s parse %s: %v", *input.Bucket, *input.UploadId, entry.Name, err) continue } output.Parts = append(output.Parts, &s3.Part{ PartNumber: aws.Int64(int64(partNumber)), LastModified: aws.Time(time.Unix(entry.Attributes.Mtime, 0)), Size: aws.Int64(int64(filer2.TotalSize(entry.Chunks))), ETag: aws.String("\"" + filer2.ETag(entry) + "\""), }) } }
return }
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