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package s3api
import (
"fmt"
"net/http"
"net/url"
"strconv"
"strings"
"time"
"github.com/gorilla/mux"
"github.com/chrislusf/seaweedfs/weed/util"
)
func (s3a *S3ApiServer) CopyObjectHandler(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
dstBucket := vars["bucket"]
dstObject := getObject(vars)
// Copy source path.
cpSrcPath, err := url.QueryUnescape(r.Header.Get("X-Amz-Copy-Source"))
if err != nil {
// Save unescaped string as is.
cpSrcPath = r.Header.Get("X-Amz-Copy-Source")
}
srcBucket, srcObject := pathToBucketAndObject(cpSrcPath)
// If source object is empty or bucket is empty, reply back invalid copy source.
if srcObject == "" || srcBucket == "" {
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
return
}
if srcBucket == dstBucket && srcObject == dstObject {
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
return
}
dstUrl := fmt.Sprintf("http://%s%s/%s%s?collection=%s",
s3a.option.Filer, s3a.option.BucketsPath, dstBucket, dstObject, dstBucket)
srcUrl := fmt.Sprintf("http://%s%s/%s%s",
s3a.option.Filer, s3a.option.BucketsPath, srcBucket, srcObject)
_, _, dataReader, err := util.DownloadFile(srcUrl)
if err != nil {
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
return
}
etag, errCode := s3a.putToFiler(r, dstUrl, dataReader)
println("srcUrl:", srcUrl)
println("dstUrl:", dstUrl)
if errCode != ErrNone {
writeErrorResponse(w, errCode, r.URL)
return
}
setEtag(w, etag)
response := CopyObjectResult{
ETag: etag,
LastModified: time.Now(),
}
writeSuccessResponseXML(w, encodeResponse(response))
}
func pathToBucketAndObject(path string) (bucket, object string) {
path = strings.TrimPrefix(path, "/")
parts := strings.SplitN(path, "/", 2)
if len(parts) == 2 {
return parts[0], "/" + parts[1]
}
return parts[0], "/"
}
type CopyPartResult struct {
LastModified time.Time `xml:"LastModified"`
ETag string `xml:"ETag"`
}
func (s3a *S3ApiServer) CopyObjectPartHandler(w http.ResponseWriter, r *http.Request) {
// https://docs.aws.amazon.com/AmazonS3/latest/dev/CopyingObjctsUsingRESTMPUapi.html
// https://docs.aws.amazon.com/AmazonS3/latest/API/API_UploadPartCopy.html
vars := mux.Vars(r)
dstBucket := vars["bucket"]
// dstObject := getObject(vars)
// Copy source path.
cpSrcPath, err := url.QueryUnescape(r.Header.Get("X-Amz-Copy-Source"))
if err != nil {
// Save unescaped string as is.
cpSrcPath = r.Header.Get("X-Amz-Copy-Source")
}
srcBucket, srcObject := pathToBucketAndObject(cpSrcPath)
// If source object is empty or bucket is empty, reply back invalid copy source.
if srcObject == "" || srcBucket == "" {
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
return
}
uploadID := r.URL.Query().Get("uploadId")
partIDString := r.URL.Query().Get("partNumber")
partID, err := strconv.Atoi(partIDString)
if err != nil {
writeErrorResponse(w, ErrInvalidPart, r.URL)
return
}
// check partID with maximum part ID for multipart objects
if partID > 10000 {
writeErrorResponse(w, ErrInvalidMaxParts, r.URL)
return
}
rangeHeader := r.Header.Get("x-amz-copy-source-range")
dstUrl := fmt.Sprintf("http://%s%s/%s/%04d.part?collection=%s",
s3a.option.Filer, s3a.genUploadsFolder(dstBucket), uploadID, partID-1, dstBucket)
srcUrl := fmt.Sprintf("http://%s%s/%s%s",
s3a.option.Filer, s3a.option.BucketsPath, srcBucket, srcObject)
dataReader, err := util.ReadUrlAsReaderCloser(srcUrl, rangeHeader)
if err != nil {
writeErrorResponse(w, ErrInvalidCopySource, r.URL)
return
}
etag, errCode := s3a.putToFiler(r, dstUrl, dataReader)
if errCode != ErrNone {
writeErrorResponse(w, errCode, r.URL)
return
}
setEtag(w, etag)
response := CopyPartResult{
ETag: etag,
LastModified: time.Now(),
}
writeSuccessResponseXML(w, encodeResponse(response))
}
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