seaweedfs/weed/s3api/filer_multipart.go

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package s3api
import (
"encoding/hex"
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"encoding/xml"
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"fmt"
"github.com/seaweedfs/seaweedfs/weed/s3api/s3err"
"golang.org/x/exp/slices"
"math"
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"path/filepath"
"sort"
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"strconv"
"strings"
"time"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/s3"
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"github.com/seaweedfs/seaweedfs/weed/filer"
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/pb/filer_pb"
)
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type InitiateMultipartUploadResult struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ InitiateMultipartUploadResult"`
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s3.CreateMultipartUploadOutput
}
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func (s3a *S3ApiServer) createMultipartUpload(input *s3.CreateMultipartUploadInput) (output *InitiateMultipartUploadResult, code s3err.ErrorCode) {
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glog.V(2).Infof("createMultipartUpload input %v", input)
uploadIdString := s3a.generateUploadID(*input.Key)
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if err := s3a.mkdir(s3a.genUploadsFolder(*input.Bucket), uploadIdString, func(entry *filer_pb.Entry) {
if entry.Extended == nil {
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entry.Extended = make(map[string][]byte)
}
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entry.Extended["key"] = []byte(*input.Key)
for k, v := range input.Metadata {
entry.Extended[k] = []byte(*v)
}
if input.ContentType != nil {
entry.Attributes.Mime = *input.ContentType
}
}); err != nil {
glog.Errorf("NewMultipartUpload error: %v", err)
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return nil, s3err.ErrInternalError
}
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output = &InitiateMultipartUploadResult{
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CreateMultipartUploadOutput: s3.CreateMultipartUploadOutput{
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Bucket: input.Bucket,
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Key: objectKey(input.Key),
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UploadId: aws.String(uploadIdString),
},
}
return
}
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type CompleteMultipartUploadResult struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ CompleteMultipartUploadResult"`
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s3.CompleteMultipartUploadOutput
}
func (s3a *S3ApiServer) completeMultipartUpload(input *s3.CompleteMultipartUploadInput, parts *CompleteMultipartUpload) (output *CompleteMultipartUploadResult, code s3err.ErrorCode) {
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glog.V(2).Infof("completeMultipartUpload input %v", input)
completedParts := parts.Parts
slices.SortFunc(completedParts, func(a, b CompletedPart) bool {
return a.PartNumber < b.PartNumber
})
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uploadDirectory := s3a.genUploadsFolder(*input.Bucket) + "/" + *input.UploadId
entries, _, err := s3a.list(uploadDirectory, "", "", false, maxPartsList)
if err != nil || len(entries) == 0 {
glog.Errorf("completeMultipartUpload %s %s error: %v, entries:%d", *input.Bucket, *input.UploadId, err, len(entries))
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return nil, s3err.ErrNoSuchUpload
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}
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pentry, err := s3a.getEntry(s3a.genUploadsFolder(*input.Bucket), *input.UploadId)
if err != nil {
glog.Errorf("completeMultipartUpload %s %s error: %v", *input.Bucket, *input.UploadId, err)
return nil, s3err.ErrNoSuchUpload
}
mime := pentry.Attributes.Mime
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var finalParts []*filer_pb.FileChunk
var offset int64
for _, entry := range entries {
if strings.HasSuffix(entry.Name, ".part") && !entry.IsDirectory {
partETag, found := findByPartNumber(entry.Name, completedParts)
if !found {
continue
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}
entryETag := hex.EncodeToString(entry.Attributes.GetMd5())
if partETag != "" && len(partETag) == 32 && entryETag != "" && entryETag != partETag {
glog.Errorf("completeMultipartUpload %s ETag mismatch chunk: %s part: %s", entry.Name, entryETag, partETag)
return nil, s3err.ErrInvalidPart
}
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for _, chunk := range entry.Chunks {
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p := &filer_pb.FileChunk{
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FileId: chunk.GetFileIdString(),
Offset: offset,
Size: chunk.Size,
Mtime: chunk.Mtime,
CipherKey: chunk.CipherKey,
ETag: chunk.ETag,
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}
finalParts = append(finalParts, p)
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offset += int64(chunk.Size)
}
}
}
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entryName := filepath.Base(*input.Key)
dirName := filepath.Dir(*input.Key)
if dirName == "." {
dirName = ""
}
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if strings.HasPrefix(dirName, "/") {
dirName = dirName[1:]
}
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dirName = fmt.Sprintf("%s/%s/%s", s3a.option.BucketsPath, *input.Bucket, dirName)
// remove suffix '/'
if strings.HasSuffix(dirName, "/") {
dirName = dirName[:len(dirName)-1]
}
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err = s3a.mkFile(dirName, entryName, finalParts, func(entry *filer_pb.Entry) {
if entry.Extended == nil {
entry.Extended = make(map[string][]byte)
}
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for k, v := range pentry.Extended {
if k != "key" {
entry.Extended[k] = v
}
}
if pentry.Attributes.Mime != "" {
entry.Attributes.Mime = pentry.Attributes.Mime
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} else if mime != "" {
entry.Attributes.Mime = mime
}
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entry.Attributes.FileSize = uint64(offset)
})
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if err != nil {
glog.Errorf("completeMultipartUpload %s/%s error: %v", dirName, entryName, err)
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return nil, s3err.ErrInternalError
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}
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output = &CompleteMultipartUploadResult{
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CompleteMultipartUploadOutput: s3.CompleteMultipartUploadOutput{
Location: aws.String(fmt.Sprintf("http://%s%s/%s", s3a.option.Filer.ToHttpAddress(), urlPathEscape(dirName), urlPathEscape(entryName))),
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Bucket: input.Bucket,
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ETag: aws.String("\"" + filer.ETagChunks(finalParts) + "\""),
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Key: objectKey(input.Key),
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},
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}
if err = s3a.rm(s3a.genUploadsFolder(*input.Bucket), *input.UploadId, false, true); err != nil {
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glog.V(1).Infof("completeMultipartUpload cleanup %s upload %s: %v", *input.Bucket, *input.UploadId, err)
}
return
}
func findByPartNumber(fileName string, parts []CompletedPart) (etag string, found bool) {
partNumber, formatErr := strconv.Atoi(fileName[:4])
if formatErr != nil {
return
}
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x := sort.Search(len(parts), func(i int) bool {
return parts[i].PartNumber >= partNumber
})
if x >= len(parts) {
return
}
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if parts[x].PartNumber != partNumber {
return
}
y := 0
for i, part := range parts[x:] {
if part.PartNumber == partNumber {
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y = i
} else {
break
}
}
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return parts[x+y].ETag, true
}
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func (s3a *S3ApiServer) abortMultipartUpload(input *s3.AbortMultipartUploadInput) (output *s3.AbortMultipartUploadOutput, code s3err.ErrorCode) {
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glog.V(2).Infof("abortMultipartUpload input %v", input)
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exists, err := s3a.exists(s3a.genUploadsFolder(*input.Bucket), *input.UploadId, true)
if err != nil {
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glog.V(1).Infof("bucket %s abort upload %s: %v", *input.Bucket, *input.UploadId, err)
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return nil, s3err.ErrNoSuchUpload
}
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if exists {
err = s3a.rm(s3a.genUploadsFolder(*input.Bucket), *input.UploadId, true, true)
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}
if err != nil {
glog.V(1).Infof("bucket %s remove upload %s: %v", *input.Bucket, *input.UploadId, err)
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return nil, s3err.ErrInternalError
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}
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return &s3.AbortMultipartUploadOutput{}, s3err.ErrNone
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}
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type ListMultipartUploadsResult struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListMultipartUploadsResult"`
// copied from s3.ListMultipartUploadsOutput, the Uploads is not converting to <Upload></Upload>
Bucket *string `type:"string"`
Delimiter *string `type:"string"`
EncodingType *string `type:"string" enum:"EncodingType"`
IsTruncated *bool `type:"boolean"`
KeyMarker *string `type:"string"`
MaxUploads *int64 `type:"integer"`
NextKeyMarker *string `type:"string"`
NextUploadIdMarker *string `type:"string"`
Prefix *string `type:"string"`
UploadIdMarker *string `type:"string"`
Upload []*s3.MultipartUpload `locationName:"Upload" type:"list" flattened:"true"`
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}
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func (s3a *S3ApiServer) listMultipartUploads(input *s3.ListMultipartUploadsInput) (output *ListMultipartUploadsResult, code s3err.ErrorCode) {
// https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListMultipartUploads.html
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glog.V(2).Infof("listMultipartUploads input %v", input)
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output = &ListMultipartUploadsResult{
Bucket: input.Bucket,
Delimiter: input.Delimiter,
EncodingType: input.EncodingType,
KeyMarker: input.KeyMarker,
MaxUploads: input.MaxUploads,
Prefix: input.Prefix,
IsTruncated: aws.Bool(false),
}
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entries, _, err := s3a.list(s3a.genUploadsFolder(*input.Bucket), "", *input.UploadIdMarker, false, math.MaxInt32)
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if err != nil {
glog.Errorf("listMultipartUploads %s error: %v", *input.Bucket, err)
return
}
uploadsCount := int64(0)
for _, entry := range entries {
if entry.Extended != nil {
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key := string(entry.Extended["key"])
if *input.KeyMarker != "" && *input.KeyMarker != key {
continue
}
if *input.Prefix != "" && !strings.HasPrefix(key, *input.Prefix) {
continue
}
output.Upload = append(output.Upload, &s3.MultipartUpload{
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Key: objectKey(aws.String(key)),
UploadId: aws.String(entry.Name),
})
uploadsCount += 1
}
if uploadsCount >= *input.MaxUploads {
output.IsTruncated = aws.Bool(true)
output.NextUploadIdMarker = aws.String(entry.Name)
break
}
}
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return
}
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type ListPartsResult struct {
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XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ ListPartsResult"`
// copied from s3.ListPartsOutput, the Parts is not converting to <Part></Part>
Bucket *string `type:"string"`
IsTruncated *bool `type:"boolean"`
Key *string `min:"1" type:"string"`
MaxParts *int64 `type:"integer"`
NextPartNumberMarker *int64 `type:"integer"`
PartNumberMarker *int64 `type:"integer"`
Part []*s3.Part `locationName:"Part" type:"list" flattened:"true"`
StorageClass *string `type:"string" enum:"StorageClass"`
UploadId *string `type:"string"`
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}
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func (s3a *S3ApiServer) listObjectParts(input *s3.ListPartsInput) (output *ListPartsResult, code s3err.ErrorCode) {
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// https://docs.aws.amazon.com/AmazonS3/latest/API/API_ListParts.html
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glog.V(2).Infof("listObjectParts input %v", input)
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output = &ListPartsResult{
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
StorageClass: aws.String("STANDARD"),
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}
entries, isLast, err := s3a.list(s3a.genUploadsFolder(*input.Bucket)+"/"+*input.UploadId, "", fmt.Sprintf("%04d.part", *input.PartNumberMarker), false, uint32(*input.MaxParts))
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if err != nil {
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glog.Errorf("listObjectParts %s %s error: %v", *input.Bucket, *input.UploadId, err)
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return nil, s3err.ErrNoSuchUpload
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}
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// Note: The upload directory is sort of a marker of the existence of an multipart upload request.
// So can not just delete empty upload folders.
output.IsTruncated = aws.Bool(!isLast)
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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 {
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glog.Errorf("listObjectParts %s %s parse %s: %v", *input.Bucket, *input.UploadId, entry.Name, err)
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continue
}
output.Part = append(output.Part, &s3.Part{
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PartNumber: aws.Int64(int64(partNumber)),
LastModified: aws.Time(time.Unix(entry.Attributes.Mtime, 0).UTC()),
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Size: aws.Int64(int64(filer.FileSize(entry))),
ETag: aws.String("\"" + filer.ETag(entry) + "\""),
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})
if !isLast {
output.NextPartNumberMarker = aws.Int64(int64(partNumber))
}
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}
}
return
}