seaweedfs/weed/s3api/s3api_object_multipart_handlers.go
2018-09-04 00:42:44 -07:00

265 lines
7.3 KiB
Go

package s3api
import (
"net/http"
"github.com/gorilla/mux"
"fmt"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/aws"
"net/url"
"strconv"
"io/ioutil"
"encoding/xml"
"sort"
"strings"
)
const (
maxObjectList = 1000 // Limit number of objects in a listObjectsResponse.
maxUploadsList = 1000 // Limit number of uploads in a listUploadsResponse.
maxPartsList = 1000 // Limit number of parts in a listPartsResponse.
globalMaxPartID = 10000
)
// NewMultipartUploadHandler - New multipart upload.
func (s3a *S3ApiServer) NewMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
var object, bucket string
vars := mux.Vars(r)
bucket = vars["bucket"]
object = vars["object"]
response, errCode := s3a.createMultipartUpload(&s3.CreateMultipartUploadInput{
Bucket: aws.String(bucket),
Key: aws.String(object),
})
if errCode != ErrNone {
writeErrorResponse(w, errCode, r.URL)
return
}
writeSuccessResponseXML(w, encodeResponse(response))
}
// CompleteMultipartUploadHandler - Completes multipart upload.
func (s3a *S3ApiServer) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
// Get upload id.
uploadID, _, _, _ := getObjectResources(r.URL.Query())
completeMultipartBytes, err := ioutil.ReadAll(r.Body)
if err != nil {
writeErrorResponse(w, ErrInternalError, r.URL)
return
}
completedMultipartUpload := &s3.CompletedMultipartUpload{}
if err = xml.Unmarshal(completeMultipartBytes, completedMultipartUpload); err != nil {
writeErrorResponse(w, ErrMalformedXML, r.URL)
return
}
if len(completedMultipartUpload.Parts) == 0 {
writeErrorResponse(w, ErrMalformedXML, r.URL)
return
}
if !sort.IsSorted(byCompletedPartNumber(completedMultipartUpload.Parts)) {
writeErrorResponse(w, ErrInvalidPartOrder, r.URL)
return
}
response, errCode := s3a.completeMultipartUpload(&s3.CompleteMultipartUploadInput{
Bucket: aws.String(bucket),
Key: aws.String(object),
MultipartUpload: completedMultipartUpload,
UploadId: aws.String(uploadID),
})
if errCode != ErrNone {
writeErrorResponse(w, errCode, r.URL)
return
}
writeSuccessResponseXML(w, encodeResponse(response))
}
// AbortMultipartUploadHandler - Aborts multipart upload.
func (s3a *S3ApiServer) AbortMultipartUploadHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
// Get upload id.
uploadID, _, _, _ := getObjectResources(r.URL.Query())
response, errCode := s3a.abortMultipartUpload(&s3.AbortMultipartUploadInput{
Bucket: aws.String(bucket),
Key: aws.String(object),
UploadId: aws.String(uploadID),
})
if errCode != ErrNone {
writeErrorResponse(w, errCode, r.URL)
return
}
writeSuccessResponseXML(w, encodeResponse(response))
}
// ListMultipartUploadsHandler - Lists multipart uploads.
func (s3a *S3ApiServer) ListMultipartUploadsHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
prefix, keyMarker, uploadIDMarker, delimiter, maxUploads, encodingType := getBucketMultipartResources(r.URL.Query())
if maxUploads < 0 {
writeErrorResponse(w, ErrInvalidMaxUploads, r.URL)
return
}
if keyMarker != "" {
// Marker not common with prefix is not implemented.
if !strings.HasPrefix(keyMarker, prefix) {
writeErrorResponse(w, ErrNotImplemented, r.URL)
return
}
}
response, errCode := s3a.listMultipartUploads(&s3.ListMultipartUploadsInput{
Bucket: aws.String(bucket),
Delimiter: aws.String(delimiter),
EncodingType: aws.String(encodingType),
KeyMarker: aws.String(keyMarker),
MaxUploads: aws.Int64(int64(maxUploads)),
Prefix: aws.String(prefix),
UploadIdMarker: aws.String(uploadIDMarker),
})
if errCode != ErrNone {
writeErrorResponse(w, errCode, r.URL)
return
}
writeSuccessResponseXML(w, encodeResponse(response))
}
// ListObjectPartsHandler - Lists object parts in a multipart upload.
func (s3a *S3ApiServer) ListObjectPartsHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
object := vars["object"]
uploadID, partNumberMarker, maxParts, _ := getObjectResources(r.URL.Query())
if partNumberMarker < 0 {
writeErrorResponse(w, ErrInvalidPartNumberMarker, r.URL)
return
}
if maxParts < 0 {
writeErrorResponse(w, ErrInvalidMaxParts, r.URL)
return
}
response, errCode := s3a.listObjectParts(&s3.ListPartsInput{
Bucket: aws.String(bucket),
Key: aws.String(object),
MaxParts: aws.Int64(int64(maxParts)),
PartNumberMarker: aws.Int64(int64(partNumberMarker)),
UploadId: aws.String(uploadID),
})
if errCode != ErrNone {
writeErrorResponse(w, errCode, r.URL)
return
}
writeSuccessResponseXML(w, encodeResponse(response))
}
// PutObjectPartHandler - Put an object part in a multipart upload.
func (s3a *S3ApiServer) PutObjectPartHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
bucket := vars["bucket"]
rAuthType := getRequestAuthType(r)
uploadID := r.URL.Query().Get("uploadId")
exists, err := s3a.exists(s3a.genUploadsFolder(bucket), uploadID, true)
if !exists {
writeErrorResponse(w, ErrNoSuchUpload, r.URL)
return
}
partIDString := r.URL.Query().Get("partNumber")
partID, err := strconv.Atoi(partIDString)
if err != nil {
writeErrorResponse(w, ErrInvalidPart, r.URL)
return
}
if partID > globalMaxPartID {
writeErrorResponse(w, ErrInvalidMaxParts, r.URL)
return
}
dataReader := r.Body
if rAuthType == authTypeStreamingSigned {
dataReader = newSignV4ChunkedReader(r)
}
uploadUrl := fmt.Sprintf("http://%s%s/%s/%04d.part",
s3a.option.Filer, s3a.genUploadsFolder(bucket), uploadID, partID-1)
etag, errCode := s3a.putToFiler(r, uploadUrl, dataReader)
if errCode != ErrNone {
writeErrorResponse(w, errCode, r.URL)
return
}
setEtag(w, etag)
writeSuccessResponseEmpty(w)
}
func (s3a *S3ApiServer) genUploadsFolder(bucket string) string {
return fmt.Sprintf("%s/%s/_uploads", s3a.option.BucketsPath, bucket)
}
// Parse bucket url queries for ?uploads
func getBucketMultipartResources(values url.Values) (prefix, keyMarker, uploadIDMarker, delimiter string, maxUploads int, encodingType string) {
prefix = values.Get("prefix")
keyMarker = values.Get("key-marker")
uploadIDMarker = values.Get("upload-id-marker")
delimiter = values.Get("delimiter")
if values.Get("max-uploads") != "" {
maxUploads, _ = strconv.Atoi(values.Get("max-uploads"))
} else {
maxUploads = maxUploadsList
}
encodingType = values.Get("encoding-type")
return
}
// Parse object url queries
func getObjectResources(values url.Values) (uploadID string, partNumberMarker, maxParts int, encodingType string) {
uploadID = values.Get("uploadId")
partNumberMarker, _ = strconv.Atoi(values.Get("part-number-marker"))
if values.Get("max-parts") != "" {
maxParts, _ = strconv.Atoi(values.Get("max-parts"))
} else {
maxParts = maxPartsList
}
encodingType = values.Get("encoding-type")
return
}
type byCompletedPartNumber []*s3.CompletedPart
func (a byCompletedPartNumber) Len() int { return len(a) }
func (a byCompletedPartNumber) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a byCompletedPartNumber) Less(i, j int) bool { return *a[i].PartNumber < *a[j].PartNumber }