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package s3api
import (
"fmt"
"time"
"strings"
"strconv"
"path/filepath"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/aws"
"github.com/satori/go.uuid"
"github.com/chrislusf/seaweedfs/weed/glog"
"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
"github.com/chrislusf/seaweedfs/weed/filer2"
)
func (s3a *S3ApiServer) createMultipartUpload(input *s3.CreateMultipartUploadInput) (output *s3.CreateMultipartUploadOutput, code ErrorCode) {
uploadId, _ := uuid.NewV4()
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 = &s3.CreateMultipartUploadOutput{
Bucket: input.Bucket,
Key: input.Key,
UploadId: aws.String(uploadIdString),
}
return
}
func (s3a *S3ApiServer) completeMultipartUpload(input *s3.CompleteMultipartUploadInput) (output *s3.CompleteMultipartUploadOutput, 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 {
finalParts = append(finalParts, &filer_pb.FileChunk{
FileId: chunk.FileId,
Offset: offset,
Size: chunk.Size,
Mtime: chunk.Mtime,
ETag: chunk.ETag,
})
offset += int64(chunk.Size)
}
}
}
entryName := filepath.Base(*input.Key)
dirName := filepath.Dir(*input.Key)
if dirName == "." {
dirName = ""
}
dirName = fmt.Sprintf("%s/%s/%s", s3a.option.BucketsPath, *input.Bucket, dirName)
err = s3a.mkFile(dirName, entryName, finalParts)
if err != nil {
glog.Errorf("completeMultipartUpload %s/%s error: %v", dirName, entryName, err)
return nil, ErrInternalError
}
output = &s3.CompleteMultipartUploadOutput{
Bucket: input.Bucket,
ETag: aws.String("\"" + filer2.ETag(finalParts) + "\""),
Key: input.Key,
}
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, 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
}
func (s3a *S3ApiServer) listMultipartUploads(input *s3.ListMultipartUploadsInput) (output *s3.ListMultipartUploadsOutput, code ErrorCode) {
output = &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, int(*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: aws.String(string(key)),
UploadId: aws.String(entry.Name),
})
}
}
return
}
func (s3a *S3ApiServer) listObjectParts(input *s3.ListPartsInput) (output *s3.ListPartsOutput, code ErrorCode) {
output = &s3.ListPartsOutput{
Bucket: input.Bucket,
Key: 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, int(*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.Chunks) + "\""),
})
}
}
return
}
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