more check in http_util.Delete

add status code in `DeleteResult` struct
operation.DeleteFiles maybe unsafe, so `ChunkManifest.DeleteChunks` manually delete each chunks

go/operation/chunked_file.go

@@ -70,19 +70,11 @@ func (cm *ChunkManifest) GetData() ([]byte, error) {
 }
 
 func (cm *ChunkManifest) DeleteChunks(master string) error {
-	fileIds := make([]string, 0, len(cm.Chunks))
-	for _, ci := range cm.Chunks {
-		fileIds = append(fileIds, ci.Fid)
-	}
-	results, e := DeleteFiles(master, fileIds)
-	if e != nil {
-		return e
-	}
 	deleteError := 0
-	for _, ret := range results.Results {
-		if ret.Error != "" {
+	for _, ci := range cm.Chunks {
+		if e := DeleteFile(master, ci.Fid, ""); e != nil {
 			deleteError++
-			glog.V(0).Infoln("delete error:", ret.Error, ret.Fid)
+			glog.V(0).Infoln("delete error:", e, ci.Fid)
 		}
 	}
 	if deleteError > 0 {

go/operation/delete_content.go

@@ -7,14 +7,17 @@ import (
 	"strings"
 	"sync"
 
+	"net/http"
+
 	"github.com/chrislusf/seaweedfs/go/security"
 	"github.com/chrislusf/seaweedfs/go/util"
 )
 
 type DeleteResult struct {
-	Fid   string `json:"fid"`
-	Size  int    `json:"size"`
-	Error string `json:"error,omitempty"`
+	Fid    string `json:"fid"`
+	Size   int    `json:"size"`
+	Status int    `json:"status"`
+	Error  string `json:"error,omitempty"`
 }
 
 func DeleteFile(master string, fileId string, jwt security.EncodedJwt) error {
@@ -45,7 +48,11 @@ func DeleteFiles(master string, fileIds []string) (*DeleteFilesResult, error) {
 	for _, fileId := range fileIds {
 		vid, _, err := ParseFileId(fileId)
 		if err != nil {
-			ret.Results = append(ret.Results, DeleteResult{Fid: vid, Error: err.Error()})
+			ret.Results = append(ret.Results, DeleteResult{
+				Fid:    vid,
+				Status: http.StatusBadRequest,
+				Error:  err.Error()},
+			)
 			continue
 		}
 		if _, ok := vid_to_fileIds[vid]; !ok {
@@ -76,6 +83,7 @@ func DeleteFiles(master string, fileIds []string) (*DeleteFilesResult, error) {
 	}
 
 	var wg sync.WaitGroup
+
 	for server, fidList := range server_to_fileIds {
 		wg.Add(1)
 		go func(server string, fidList []string) {