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343 lines
10 KiB
343 lines
10 KiB
package s3api
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import (
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"crypto/sha1"
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"encoding/xml"
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"fmt"
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"io"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"github.com/seaweedfs/seaweedfs/weed/glog"
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"github.com/seaweedfs/seaweedfs/weed/s3api/s3_constants"
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"github.com/seaweedfs/seaweedfs/weed/s3api/s3err"
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weed_server "github.com/seaweedfs/seaweedfs/weed/server"
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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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)
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const (
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maxObjectListSizeLimit = 10000 // Limit number of objects in a listObjectsResponse.
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maxUploadsList = 10000 // Limit number of uploads in a listUploadsResponse.
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maxPartsList = 10000 // Limit number of parts in a listPartsResponse.
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globalMaxPartID = 100000
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)
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// NewMultipartUploadHandler - New multipart upload.
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func (s3a *S3ApiServer) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
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bucket, object := s3_constants.GetBucketAndObject(r)
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createMultipartUploadInput := &s3.CreateMultipartUploadInput{
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Bucket: aws.String(bucket),
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Key: objectKey(aws.String(object)),
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Metadata: make(map[string]*string),
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}
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metadata := weed_server.SaveAmzMetaData(r, nil, false)
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for k, v := range metadata {
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createMultipartUploadInput.Metadata[k] = aws.String(string(v))
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}
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contentType := r.Header.Get("Content-Type")
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if contentType != "" {
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createMultipartUploadInput.ContentType = &contentType
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}
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response, errCode := s3a.createMultipartUpload(createMultipartUploadInput)
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glog.V(2).Info("NewMultipartUploadHandler", string(s3err.EncodeXMLResponse(response)), errCode)
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if errCode != s3err.ErrNone {
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s3err.WriteErrorResponse(w, r, errCode)
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return
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}
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writeSuccessResponseXML(w, r, response)
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}
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// CompleteMultipartUploadHandler - Completes multipart upload.
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func (s3a *S3ApiServer) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
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// https://docs.aws.amazon.com/AmazonS3/latest/API/API_CompleteMultipartUpload.html
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bucket, object := s3_constants.GetBucketAndObject(r)
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parts := &CompleteMultipartUpload{}
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if err := xmlDecoder(r.Body, parts, r.ContentLength); err != nil {
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s3err.WriteErrorResponse(w, r, s3err.ErrMalformedXML)
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return
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}
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// Get upload id.
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uploadID, _, _, _ := getObjectResources(r.URL.Query())
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err := s3a.checkUploadId(object, uploadID)
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if err != nil {
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s3err.WriteErrorResponse(w, r, s3err.ErrNoSuchUpload)
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return
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}
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response, errCode := s3a.completeMultipartUpload(&s3.CompleteMultipartUploadInput{
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Bucket: aws.String(bucket),
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Key: objectKey(aws.String(object)),
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UploadId: aws.String(uploadID),
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}, parts)
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glog.V(2).Info("CompleteMultipartUploadHandler", string(s3err.EncodeXMLResponse(response)), errCode)
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if errCode != s3err.ErrNone {
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s3err.WriteErrorResponse(w, r, errCode)
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return
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}
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writeSuccessResponseXML(w, r, response)
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}
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// AbortMultipartUploadHandler - Aborts multipart upload.
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func (s3a *S3ApiServer) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
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bucket, object := s3_constants.GetBucketAndObject(r)
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// Get upload id.
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uploadID, _, _, _ := getObjectResources(r.URL.Query())
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err := s3a.checkUploadId(object, uploadID)
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if err != nil {
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s3err.WriteErrorResponse(w, r, s3err.ErrNoSuchUpload)
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return
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}
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response, errCode := s3a.abortMultipartUpload(&s3.AbortMultipartUploadInput{
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Bucket: aws.String(bucket),
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Key: objectKey(aws.String(object)),
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UploadId: aws.String(uploadID),
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})
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if errCode != s3err.ErrNone {
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s3err.WriteErrorResponse(w, r, errCode)
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return
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}
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glog.V(2).Info("AbortMultipartUploadHandler", string(s3err.EncodeXMLResponse(response)))
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//https://docs.aws.amazon.com/AmazonS3/latest/API/API_AbortMultipartUpload.html
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s3err.WriteXMLResponse(w, r, http.StatusNoContent, response)
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s3err.PostLog(r, http.StatusNoContent, s3err.ErrNone)
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}
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// ListMultipartUploadsHandler - Lists multipart uploads.
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func (s3a *S3ApiServer) ListMultipartUploadsHandler(w http.ResponseWriter, r *http.Request) {
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bucket, _ := s3_constants.GetBucketAndObject(r)
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prefix, keyMarker, uploadIDMarker, delimiter, maxUploads, encodingType := getBucketMultipartResources(r.URL.Query())
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if maxUploads < 0 {
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s3err.WriteErrorResponse(w, r, s3err.ErrInvalidMaxUploads)
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return
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}
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if keyMarker != "" {
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// Marker not common with prefix is not implemented.
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if !strings.HasPrefix(keyMarker, prefix) {
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s3err.WriteErrorResponse(w, r, s3err.ErrNotImplemented)
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return
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}
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}
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response, errCode := s3a.listMultipartUploads(&s3.ListMultipartUploadsInput{
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Bucket: aws.String(bucket),
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Delimiter: aws.String(delimiter),
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EncodingType: aws.String(encodingType),
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KeyMarker: aws.String(keyMarker),
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MaxUploads: aws.Int64(int64(maxUploads)),
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Prefix: aws.String(prefix),
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UploadIdMarker: aws.String(uploadIDMarker),
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})
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glog.V(2).Infof("ListMultipartUploadsHandler %s errCode=%d", string(s3err.EncodeXMLResponse(response)), errCode)
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if errCode != s3err.ErrNone {
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s3err.WriteErrorResponse(w, r, errCode)
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return
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}
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// TODO handle encodingType
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writeSuccessResponseXML(w, r, response)
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}
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// ListObjectPartsHandler - Lists object parts in a multipart upload.
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func (s3a *S3ApiServer) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
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bucket, object := s3_constants.GetBucketAndObject(r)
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uploadID, partNumberMarker, maxParts, _ := getObjectResources(r.URL.Query())
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if partNumberMarker < 0 {
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s3err.WriteErrorResponse(w, r, s3err.ErrInvalidPartNumberMarker)
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return
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}
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if maxParts < 0 {
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s3err.WriteErrorResponse(w, r, s3err.ErrInvalidMaxParts)
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return
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}
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err := s3a.checkUploadId(object, uploadID)
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if err != nil {
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s3err.WriteErrorResponse(w, r, s3err.ErrNoSuchUpload)
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return
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}
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response, errCode := s3a.listObjectParts(&s3.ListPartsInput{
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Bucket: aws.String(bucket),
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Key: objectKey(aws.String(object)),
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MaxParts: aws.Int64(int64(maxParts)),
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PartNumberMarker: aws.Int64(int64(partNumberMarker)),
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UploadId: aws.String(uploadID),
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})
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if errCode != s3err.ErrNone {
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s3err.WriteErrorResponse(w, r, errCode)
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return
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}
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glog.V(2).Infof("ListObjectPartsHandler %s count=%d", string(s3err.EncodeXMLResponse(response)), len(response.Part))
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writeSuccessResponseXML(w, r, response)
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}
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// PutObjectPartHandler - Put an object part in a multipart upload.
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func (s3a *S3ApiServer) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
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bucket, object := s3_constants.GetBucketAndObject(r)
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uploadID := r.URL.Query().Get("uploadId")
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err := s3a.checkUploadId(object, uploadID)
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if err != nil {
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s3err.WriteErrorResponse(w, r, s3err.ErrNoSuchUpload)
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return
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}
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partIDString := r.URL.Query().Get("partNumber")
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partID, err := strconv.Atoi(partIDString)
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if err != nil {
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s3err.WriteErrorResponse(w, r, s3err.ErrInvalidPart)
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return
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}
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if partID > globalMaxPartID {
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s3err.WriteErrorResponse(w, r, s3err.ErrInvalidMaxParts)
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return
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}
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dataReader := r.Body
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if s3a.iam.isEnabled() {
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rAuthType := getRequestAuthType(r)
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var s3ErrCode s3err.ErrorCode
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switch rAuthType {
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case authTypeStreamingSigned:
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dataReader, s3ErrCode = s3a.iam.newSignV4ChunkedReader(r)
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case authTypeSignedV2, authTypePresignedV2:
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_, s3ErrCode = s3a.iam.isReqAuthenticatedV2(r)
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case authTypePresigned, authTypeSigned:
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_, s3ErrCode = s3a.iam.reqSignatureV4Verify(r)
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}
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if s3ErrCode != s3err.ErrNone {
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s3err.WriteErrorResponse(w, r, s3ErrCode)
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return
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}
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}
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defer dataReader.Close()
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glog.V(2).Infof("PutObjectPartHandler %s %s %04d", bucket, uploadID, partID)
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uploadUrl := fmt.Sprintf("http://%s%s/%s/%04d.part",
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s3a.option.Filer.ToHttpAddress(), s3a.genUploadsFolder(bucket), uploadID, partID)
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if partID == 1 && r.Header.Get("Content-Type") == "" {
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dataReader = mimeDetect(r, dataReader)
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}
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destination := fmt.Sprintf("%s/%s%s", s3a.option.BucketsPath, bucket, object)
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etag, errCode := s3a.putToFiler(r, uploadUrl, dataReader, destination)
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if errCode != s3err.ErrNone {
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s3err.WriteErrorResponse(w, r, errCode)
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return
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}
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setEtag(w, etag)
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writeSuccessResponseEmpty(w, r)
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}
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func (s3a *S3ApiServer) genUploadsFolder(bucket string) string {
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return fmt.Sprintf("%s/%s/%s", s3a.option.BucketsPath, bucket, s3_constants.MultipartUploadsFolder)
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}
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// Generate uploadID hash string from object
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func (s3a *S3ApiServer) generateUploadID(object string) string {
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if strings.HasPrefix(object, "/") {
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object = object[1:]
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}
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h := sha1.New()
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h.Write([]byte(object))
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return fmt.Sprintf("%x", h.Sum(nil))
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}
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//Check object name and uploadID when processing multipart uploading
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func (s3a *S3ApiServer) checkUploadId(object string, id string) error {
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hash := s3a.generateUploadID(object)
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if hash != id {
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glog.Errorf("object %s and uploadID %s are not matched", object, id)
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return fmt.Errorf("object %s and uploadID %s are not matched", object, id)
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}
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return nil
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}
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// Parse bucket url queries for ?uploads
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func getBucketMultipartResources(values url.Values) (prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int, encodingType string) {
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prefix = values.Get("prefix")
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keyMarker = values.Get("key-marker")
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uploadIDMarker = values.Get("upload-id-marker")
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delimiter = values.Get("delimiter")
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if values.Get("max-uploads") != "" {
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maxUploads, _ = strconv.Atoi(values.Get("max-uploads"))
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} else {
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maxUploads = maxUploadsList
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}
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encodingType = values.Get("encoding-type")
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return
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}
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// Parse object url queries
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func getObjectResources(values url.Values) (uploadID string, partNumberMarker, maxParts int, encodingType string) {
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uploadID = values.Get("uploadId")
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partNumberMarker, _ = strconv.Atoi(values.Get("part-number-marker"))
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if values.Get("max-parts") != "" {
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maxParts, _ = strconv.Atoi(values.Get("max-parts"))
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} else {
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maxParts = maxPartsList
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}
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encodingType = values.Get("encoding-type")
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return
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}
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func xmlDecoder(body io.Reader, v interface{}, size int64) error {
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var lbody io.Reader
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if size > 0 {
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lbody = io.LimitReader(body, size)
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} else {
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lbody = body
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}
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d := xml.NewDecoder(lbody)
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d.CharsetReader = func(label string, input io.Reader) (io.Reader, error) {
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return input, nil
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}
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return d.Decode(v)
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}
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type CompleteMultipartUpload struct {
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Parts []CompletedPart `xml:"Part"`
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}
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type CompletedPart struct {
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ETag string
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PartNumber int
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}
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