file size support set file length

use Attr.FileSize and TotalChunkSize to determine file size

weed/s3api/filer_multipart.go

@@ -208,7 +208,7 @@ func (s3a *S3ApiServer) listObjectParts(input *s3.ListPartsInput) (output *ListP
 			output.Parts = append(output.Parts, &s3.Part{
 				PartNumber:   aws.Int64(int64(partNumber)),
 				LastModified: aws.Time(time.Unix(entry.Attributes.Mtime, 0).UTC()),
-				Size:         aws.Int64(int64(filer2.TotalSize(entry.Chunks))),
+				Size:         aws.Int64(int64(filer2.FileSize(entry))),
 				ETag:         aws.String("\"" + filer2.ETag(entry) + "\""),
 			})
 		}

weed/s3api/s3api_objects_list_handlers.go

@@ -141,7 +141,7 @@ func (s3a *S3ApiServer) listFilerEntries(bucket string, originalPrefix string, m
 					Key:          fmt.Sprintf("%s%s", dir[len(bucketPrefix):], entry.Name),
 					LastModified: time.Unix(entry.Attributes.Mtime, 0).UTC(),
 					ETag:         "\"" + filer2.ETag(entry) + "\"",
-					Size:         int64(filer2.TotalSize(entry.Chunks)),
+					Size:         int64(filer2.FileSize(entry)),
 					Owner: CanonicalUser{
 						ID:          fmt.Sprintf("%x", entry.Attributes.Uid),
 						DisplayName: entry.Attributes.UserName,