package weed_server import ( "context" "encoding/json" "errors" "fmt" "io" "io/ioutil" "mime" "net/http" "net/url" "os" filenamePath "path" "strconv" "strings" "time" "github.com/chrislusf/seaweedfs/weed/filer2" "github.com/chrislusf/seaweedfs/weed/glog" "github.com/chrislusf/seaweedfs/weed/operation" "github.com/chrislusf/seaweedfs/weed/pb/filer_pb" "github.com/chrislusf/seaweedfs/weed/security" "github.com/chrislusf/seaweedfs/weed/stats" "github.com/chrislusf/seaweedfs/weed/util" ) var ( OS_UID = uint32(os.Getuid()) OS_GID = uint32(os.Getgid()) ) type FilerPostResult struct { Name string `json:"name,omitempty"` Size uint32 `json:"size,omitempty"` Error string `json:"error,omitempty"` Fid string `json:"fid,omitempty"` Url string `json:"url,omitempty"` } func (fs *FilerServer) assignNewFileInfo(w http.ResponseWriter, r *http.Request, replication, collection string, dataCenter string) (fileId, urlLocation string, auth security.EncodedJwt, err error) { stats.FilerRequestCounter.WithLabelValues("assign").Inc() start := time.Now() defer func() { stats.FilerRequestHistogram.WithLabelValues("assign").Observe(time.Since(start).Seconds()) }() ar := &operation.VolumeAssignRequest{ Count: 1, Replication: replication, Collection: collection, Ttl: r.URL.Query().Get("ttl"), DataCenter: dataCenter, } var altRequest *operation.VolumeAssignRequest if dataCenter != "" { altRequest = &operation.VolumeAssignRequest{ Count: 1, Replication: replication, Collection: collection, Ttl: r.URL.Query().Get("ttl"), DataCenter: "", } } assignResult, ae := operation.Assign(fs.filer.GetMaster(), fs.grpcDialOption, ar, altRequest) if ae != nil { glog.Errorf("failing to assign a file id: %v", ae) writeJsonError(w, r, http.StatusInternalServerError, ae) err = ae return } fileId = assignResult.Fid urlLocation = "http://" + assignResult.Url + "/" + assignResult.Fid auth = assignResult.Auth return } func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request) { ctx := context.Background() query := r.URL.Query() replication := query.Get("replication") if replication == "" { replication = fs.option.DefaultReplication } collection := query.Get("collection") if collection == "" { collection = fs.option.Collection } dataCenter := query.Get("dataCenter") if dataCenter == "" { dataCenter = fs.option.DataCenter } if autoChunked := fs.autoChunk(ctx, w, r, replication, collection, dataCenter); autoChunked { return } fileId, urlLocation, auth, err := fs.assignNewFileInfo(w, r, replication, collection, dataCenter) if err != nil || fileId == "" || urlLocation == "" { glog.V(0).Infof("fail to allocate volume for %s, collection:%s, datacenter:%s", r.URL.Path, collection, dataCenter) return } glog.V(4).Infof("write %s to %v", r.URL.Path, urlLocation) u, _ := url.Parse(urlLocation) // This allows a client to generate a chunk manifest and submit it to the filer -- it is a little off // because they need to provide FIDs instead of file paths... cm, _ := strconv.ParseBool(query.Get("cm")) if cm { q := u.Query() q.Set("cm", "true") u.RawQuery = q.Encode() } glog.V(4).Infoln("post to", u) ret, err := fs.uploadToVolumeServer(r, u, auth, w, fileId) if err != nil { return } if err = fs.updateFilerStore(ctx, r, w, replication, collection, ret, fileId); err != nil { return } // send back post result reply := FilerPostResult{ Name: ret.Name, Size: ret.Size, Error: ret.Error, Fid: fileId, Url: urlLocation, } setEtag(w, ret.ETag) writeJsonQuiet(w, r, http.StatusCreated, reply) } // update metadata in filer store func (fs *FilerServer) updateFilerStore(ctx context.Context, r *http.Request, w http.ResponseWriter, replication string, collection string, ret operation.UploadResult, fileId string) (err error) { stats.FilerRequestCounter.WithLabelValues("postStoreWrite").Inc() start := time.Now() defer func() { stats.FilerRequestHistogram.WithLabelValues("postStoreWrite").Observe(time.Since(start).Seconds()) }() path := r.URL.Path existingEntry, err := fs.filer.FindEntry(ctx, filer2.FullPath(path)) crTime := time.Now() if err == nil && existingEntry != nil { // glog.V(4).Infof("existing %s => %+v", path, existingEntry) if existingEntry.IsDirectory() { path += "/" + ret.Name } else { crTime = existingEntry.Crtime } } entry := &filer2.Entry{ FullPath: filer2.FullPath(path), Attr: filer2.Attr{ Mtime: time.Now(), Crtime: crTime, Mode: 0660, Uid: OS_UID, Gid: OS_GID, Replication: replication, Collection: collection, TtlSec: int32(util.ParseInt(r.URL.Query().Get("ttl"), 0)), }, Chunks: []*filer_pb.FileChunk{{ FileId: fileId, Size: uint64(ret.Size), Mtime: time.Now().UnixNano(), ETag: ret.ETag, }}, } if ext := filenamePath.Ext(path); ext != "" { entry.Attr.Mime = mime.TypeByExtension(ext) } // glog.V(4).Infof("saving %s => %+v", path, entry) if dbErr := fs.filer.CreateEntry(ctx, entry); dbErr != nil { fs.filer.DeleteChunks(entry.FullPath, entry.Chunks) glog.V(0).Infof("failing to write %s to filer server : %v", path, dbErr) writeJsonError(w, r, http.StatusInternalServerError, dbErr) err = dbErr return } return nil } // send request to volume server func (fs *FilerServer) uploadToVolumeServer(r *http.Request, u *url.URL, auth security.EncodedJwt, w http.ResponseWriter, fileId string) (ret operation.UploadResult, err error) { stats.FilerRequestCounter.WithLabelValues("postUpload").Inc() start := time.Now() defer func() { stats.FilerRequestHistogram.WithLabelValues("postUpload").Observe(time.Since(start).Seconds()) }() request := &http.Request{ Method: r.Method, URL: u, Proto: r.Proto, ProtoMajor: r.ProtoMajor, ProtoMinor: r.ProtoMinor, Header: r.Header, Body: r.Body, Host: r.Host, ContentLength: r.ContentLength, } if auth != "" { request.Header.Set("Authorization", "BEARER "+string(auth)) } resp, doErr := util.Do(request) if doErr != nil { glog.Errorf("failing to connect to volume server %s: %v, %+v", r.RequestURI, doErr, r.Method) writeJsonError(w, r, http.StatusInternalServerError, doErr) err = doErr return } defer func() { io.Copy(ioutil.Discard, resp.Body) resp.Body.Close() }() etag := resp.Header.Get("ETag") respBody, raErr := ioutil.ReadAll(resp.Body) if raErr != nil { glog.V(0).Infoln("failing to upload to volume server", r.RequestURI, raErr.Error()) writeJsonError(w, r, http.StatusInternalServerError, raErr) err = raErr return } glog.V(4).Infoln("post result", string(respBody)) unmarshalErr := json.Unmarshal(respBody, &ret) if unmarshalErr != nil { glog.V(0).Infoln("failing to read upload resonse", r.RequestURI, string(respBody)) writeJsonError(w, r, http.StatusInternalServerError, unmarshalErr) err = unmarshalErr return } if ret.Error != "" { err = errors.New(ret.Error) glog.V(0).Infoln("failing to post to volume server", r.RequestURI, ret.Error) writeJsonError(w, r, http.StatusInternalServerError, err) return } // find correct final path path := r.URL.Path if strings.HasSuffix(path, "/") { if ret.Name != "" { path += ret.Name } else { err = fmt.Errorf("can not to write to folder %s without a file name", path) fs.filer.DeleteFileByFileId(fileId) glog.V(0).Infoln("Can not to write to folder", path, "without a file name!") writeJsonError(w, r, http.StatusInternalServerError, err) return } } if etag != "" { ret.ETag = etag } return } // curl -X DELETE http://localhost:8888/path/to // curl -X DELETE http://localhost:8888/path/to?recursive=true func (fs *FilerServer) DeleteHandler(w http.ResponseWriter, r *http.Request) { isRecursive := r.FormValue("recursive") == "true" err := fs.filer.DeleteEntryMetaAndData(context.Background(), filer2.FullPath(r.URL.Path), isRecursive, true) if err != nil { glog.V(1).Infoln("deleting", r.URL.Path, ":", err.Error()) writeJsonError(w, r, http.StatusInternalServerError, err) return } w.WriteHeader(http.StatusNoContent) }