コード例 #1
0
func (vs *VolumeServer) PostHandler(w http.ResponseWriter, r *http.Request) {
	if e := r.ParseForm(); e != nil {
		glog.V(0).Infoln("form parse error:", e)
		writeJsonError(w, r, http.StatusBadRequest, e)
		return
	}
	vid, _, _, _, _ := parseURLPath(r.URL.Path)
	volumeId, ve := storage.NewVolumeId(vid)
	if ve != nil {
		glog.V(0).Infoln("NewVolumeId error:", ve)
		writeJsonError(w, r, http.StatusBadRequest, ve)
		return
	}
	needle, ne := storage.NewNeedle(r, vs.FixJpgOrientation)
	if ne != nil {
		writeJsonError(w, r, http.StatusBadRequest, ne)
		return
	}

	ret := operation.UploadResult{}
	size, errorStatus := topology.ReplicatedWrite(vs.GetMasterNode(),
		vs.store, volumeId, needle, r)
	httpStatus := http.StatusCreated
	if errorStatus != "" {
		httpStatus = http.StatusInternalServerError
		ret.Error = errorStatus
	}
	if needle.HasName() {
		ret.Name = string(needle.Name)
	}
	ret.Size = size
	writeJsonQuiet(w, r, httpStatus, ret)
}
コード例 #2
0
func (ms *MasterServer) lookupVolumeId(vids []string, collection string) (volumeLocations map[string]operation.LookupResult) {
	volumeLocations = make(map[string]operation.LookupResult)
	for _, vid := range vids {
		commaSep := strings.Index(vid, ",")
		if commaSep > 0 {
			vid = vid[0:commaSep]
		}
		if _, ok := volumeLocations[vid]; ok {
			continue
		}
		volumeId, err := storage.NewVolumeId(vid)
		if err == nil {
			machines := ms.Topo.Lookup(collection, volumeId)
			if machines != nil {
				var ret []operation.Location
				for _, dn := range machines {
					ret = append(ret, operation.Location{Url: dn.Url(), PublicUrl: dn.PublicUrl})
				}
				volumeLocations[vid] = operation.LookupResult{VolumeId: vid, Locations: ret}
			} else {
				volumeLocations[vid] = operation.LookupResult{VolumeId: vid, Error: "volumeId not found."}
			}
		} else {
			volumeLocations[vid] = operation.LookupResult{VolumeId: vid, Error: "Unknown volumeId format."}
		}
	}
	return
}
コード例 #3
0
func (vs *VolumeServer) DeleteHandler(w http.ResponseWriter, r *http.Request) {
	n := new(storage.Needle)
	vid, fid, _, _, _ := parseURLPath(r.URL.Path)
	volumeId, _ := storage.NewVolumeId(vid)
	n.ParsePath(fid)

	glog.V(2).Infoln("deleting", n)

	cookie := n.Cookie

	_, ok := vs.store.ReadVolumeNeedle(volumeId, n)
	if ok != nil {
		m := make(map[string]uint32)
		m["size"] = 0
		writeJsonQuiet(w, r, http.StatusNotFound, m)
		return
	}
	defer n.ReleaseMemory()

	if n.Cookie != cookie {
		glog.V(0).Infoln("delete", r.URL.Path, "with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
		writeJsonError(w, r, http.StatusBadRequest, errors.New("File Random Cookie does not match."))
		return
	}

	count := int64(n.Size)

	if n.IsChunkedManifest() {
		chunkManifest, e := operation.LoadChunkManifest(n.Data, n.IsGzipped())
		if e != nil {
			writeJsonError(w, r, http.StatusInternalServerError, fmt.Errorf("Load chunks manifest error: %v", e))
			return
		}
		// make sure all chunks had deleted before delete manifest
		if e := chunkManifest.DeleteChunks(vs.GetMasterNode()); e != nil {
			writeJsonError(w, r, http.StatusInternalServerError, fmt.Errorf("Delete chunks error: %v", e))
			return
		}
		count = chunkManifest.Size
	}

	_, err := topology.ReplicatedDelete(vs.GetMasterNode(), vs.store, volumeId, n, r)

	if err == nil {
		m := make(map[string]int64)
		m["size"] = count
		writeJsonQuiet(w, r, http.StatusAccepted, m)
	} else {
		writeJsonError(w, r, http.StatusInternalServerError, fmt.Errorf("Deletion Failed: %v", err))
	}

}
コード例 #4
0
func (vs *VolumeServer) getVolume(volumeParameterName string, r *http.Request) (*storage.Volume, error) {
	volumeIdString := r.FormValue(volumeParameterName)
	if volumeIdString == "" {
		err := fmt.Errorf("Empty Volume Id: Need to pass in %s=the_volume_id.", volumeParameterName)
		return nil, err
	}
	vid, err := storage.NewVolumeId(volumeIdString)
	if err != nil {
		err = fmt.Errorf("Volume Id %s is not a valid unsigned integer", volumeIdString)
		return nil, err
	}
	v := vs.store.GetVolume(vid)
	if v == nil {
		return nil, fmt.Errorf("Not Found Volume Id %s: %d", volumeIdString, vid)
	}
	return v, nil
}
コード例 #5
0
func (ms *MasterServer) redirectHandler(w http.ResponseWriter, r *http.Request) {
	vid, _, _, _, _ := parseURLPath(r.URL.Path)
	volumeId, err := storage.NewVolumeId(vid)
	if err != nil {
		debug("parsing error:", err, r.URL.Path)
		return
	}
	machines := ms.Topo.Lookup("", volumeId)
	if machines != nil && machines.Length() > 0 {
		var url string
		if r.URL.RawQuery != "" {
			url = util.NormalizeUrl(machines.PickForRead().PublicUrl) + r.URL.Path + "?" + r.URL.RawQuery
		} else {
			url = util.NormalizeUrl(machines.PickForRead().PublicUrl) + r.URL.Path
		}
		http.Redirect(w, r, url, http.StatusMovedPermanently)
	} else {
		writeJsonError(w, r, http.StatusNotFound, fmt.Errorf("volume id %d not found", volumeId))
	}
}
コード例 #6
0
func (ms *MasterServer) redirectHandler(w http.ResponseWriter, r *http.Request) {
	vid, _, _, _, _ := parseURLPath(r.URL.Path)
	volumeId, err := storage.NewVolumeId(vid)
	if err != nil {
		debug("parsing error:", err, r.URL.Path)
		return
	}
	collection := r.FormValue("collection")
	machines := ms.Topo.Lookup(collection, volumeId)
	if machines != nil && len(machines) > 0 {
		var url string
		if r.URL.RawQuery != "" {
			url = util.NormalizeUrl(machines[rand.Intn(len(machines))].PublicUrl) + r.URL.Path + "?" + r.URL.RawQuery
		} else {
			url = util.NormalizeUrl(machines[rand.Intn(len(machines))].PublicUrl) + r.URL.Path
		}
		http.Redirect(w, r, url, http.StatusMovedPermanently)
	} else {
		writeJsonError(w, r, http.StatusNotFound, fmt.Errorf("volume id %d or collection %s not found", volumeId, collection))
	}
}
コード例 #7
0
//Experts only: takes multiple fid parameters. This function does not propagate deletes to replicas.
func (vs *VolumeServer) batchDeleteHandler(w http.ResponseWriter, r *http.Request) {
	r.ParseForm()
	var ret []operation.DeleteResult
	for _, fid := range r.Form["fid"] {
		vid, id_cookie, err := operation.ParseFileId(fid)
		if err != nil {
			ret = append(ret, operation.DeleteResult{
				Fid:    fid,
				Status: http.StatusBadRequest,
				Error:  err.Error()})
			continue
		}
		n := new(storage.Needle)
		volumeId, _ := storage.NewVolumeId(vid)
		n.ParsePath(id_cookie)
		glog.V(4).Infoln("batch deleting", n)
		cookie := n.Cookie
		if _, err := vs.store.ReadVolumeNeedle(volumeId, n); err != nil {
			ret = append(ret, operation.DeleteResult{
				Fid:    fid,
				Status: http.StatusNotFound,
				Error:  err.Error(),
			})
			continue
		}

		if n.IsChunkedManifest() {
			ret = append(ret, operation.DeleteResult{
				Fid:    fid,
				Status: http.StatusNotAcceptable,
				Error:  "ChunkManifest: not allowed in batch delete mode.",
			})
			n.ReleaseMemory()
			continue
		}

		if n.Cookie != cookie {
			ret = append(ret, operation.DeleteResult{
				Fid:    fid,
				Status: http.StatusBadRequest,
				Error:  "File Random Cookie does not match.",
			})
			glog.V(0).Infoln("deleting", fid, "with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
			n.ReleaseMemory()
			return
		}
		if size, err := vs.store.Delete(volumeId, n); err != nil {
			ret = append(ret, operation.DeleteResult{
				Fid:    fid,
				Status: http.StatusInternalServerError,
				Error:  err.Error()},
			)
		} else {
			ret = append(ret, operation.DeleteResult{
				Fid:    fid,
				Status: http.StatusAccepted,
				Size:   int(size)},
			)
		}
		n.ReleaseMemory()
	}

	writeJsonQuiet(w, r, http.StatusAccepted, ret)
}
コード例 #8
0
func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request) {
	vid, nid, filename, ext, _ := parseURLPath(r.URL.Path)
	volumeId, err := storage.NewVolumeId(vid)
	if err != nil {
		glog.V(2).Infoln("parsing error:", err, r.URL.Path)
		w.WriteHeader(http.StatusBadRequest)
		return
	}
	var (
		n *storage.Needle
	)

	fid, err := storage.NewFileIdFromNid(vid, nid)
	if err != nil {
		glog.V(2).Infoln("parsing fid error:", err, r.URL.Path)
		w.WriteHeader(http.StatusBadRequest)
		return
	}
	glog.V(4).Infoln("volume", volumeId, "reading", n)
	if vs.store.HasVolume(volumeId) {
		n, err = vs.store.ReadLocalNeedle(fid)
		glog.V(4).Infoln("read local needle", fid, "error", err)
		if err != nil {
			glog.V(0).Infoln("read local error:", err, r.URL.Path)
			w.WriteHeader(http.StatusNotFound)
			return
		}
	} else if vs.ReadRemoteNeedle {
		n, err = vs.store.ReadRemoteNeedle(fid, r.FormValue("collection"))
		glog.V(4).Infoln("read remote needle", fid, "error", err)
		if err != nil {
			glog.V(0).Infoln("read remote error:", err, ",url path:", r.URL.Path)
			w.WriteHeader(http.StatusNotFound)
			return
		}
	} else if vs.ReadRedirect {
		lookupResult, err := operation.Lookup(vs.GetMasterNode(), volumeId.String(), r.FormValue("collection"))
		glog.V(2).Infoln("volume", volumeId, "found on", lookupResult, "error", err)
		if err == nil && len(lookupResult.Locations) > 0 {
			u, _ := url.Parse(util.NormalizeUrl(lookupResult.Locations.PickForRead().PublicUrl))
			u.Path = r.URL.Path
			http.Redirect(w, r, u.String(), http.StatusMovedPermanently)
		} else {
			glog.V(2).Infoln("lookup error:", err, r.URL.Path)
			w.WriteHeader(http.StatusNotFound)
		}
		return
	} else {
		glog.V(2).Infoln("volume is not local:", err, r.URL.Path)
		w.WriteHeader(http.StatusNotFound)
		return
	}

	if n.LastModified != 0 {
		w.Header().Set("Last-Modified", time.Unix(int64(n.LastModified), 0).UTC().Format(http.TimeFormat))
		if r.Header.Get("If-Modified-Since") != "" {
			if t, parseError := time.Parse(http.TimeFormat, r.Header.Get("If-Modified-Since")); parseError == nil {
				if t.Unix() >= int64(n.LastModified) {
					w.WriteHeader(http.StatusNotModified)
					return
				}
			}
		}
	}
	etag := n.Etag()
	if inm := r.Header.Get("If-None-Match"); inm == etag {
		w.WriteHeader(http.StatusNotModified)
		return
	}
	w.Header().Set("Etag", etag)

	if vs.tryHandleChunkedFile(volumeId, n, filename, w, r) {
		return
	}

	if n.NameSize > 0 && filename == "" {
		filename = string(n.Name)
		if ext == "" {
			ext = path.Ext(filename)
		}
	}
	mtype := ""
	if n.MimeSize > 0 {
		mt := string(n.Mime)
		if !strings.HasPrefix(mt, "application/octet-stream") {
			mtype = mt
		}
	}
	needleData := n.Data
	if ext != ".gz" {
		if n.IsGzipped() {
			if strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
				w.Header().Set("Content-Encoding", "gzip")
			} else {
				if needleData, err = operation.UnGzipData(needleData); err != nil {
					glog.V(0).Infoln("ungzip error:", err, r.URL.Path)
				}
			}
		}
	}
	if ext == ".png" || ext == ".jpg" || ext == ".gif" {
		width, height := 0, 0
		if r.FormValue("width") != "" {
			width, _ = strconv.Atoi(r.FormValue("width"))
		}
		if r.FormValue("height") != "" {
			height, _ = strconv.Atoi(r.FormValue("height"))
		}
		if needleData, _, _, err = images.Resized(ext, needleData, width, height); err != nil {
			glog.V(0).Infoln("resize image error,", err, r.URL.Path)
		}
	}

	if err = writeResponseContent(filename, mtype, bytes.NewReader(needleData), w, r); err != nil {
		glog.V(2).Infoln("response write error:", err, r.URL.Path)
	}
}
コード例 #9
0
func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request) {
	n := new(storage.Needle)
	vid, fid, filename, ext, _ := parseURLPath(r.URL.Path)
	volumeId, err := storage.NewVolumeId(vid)
	if err != nil {
		glog.V(2).Infoln("parsing error:", err, r.URL.Path)
		w.WriteHeader(http.StatusBadRequest)
		return
	}
	err = n.ParsePath(fid)
	if err != nil {
		glog.V(2).Infoln("parsing fid error:", err, r.URL.Path)
		w.WriteHeader(http.StatusBadRequest)
		return
	}

	glog.V(4).Infoln("volume", volumeId, "reading", n)
	if !vs.store.HasVolume(volumeId) {
		if !vs.ReadRedirect {
			glog.V(2).Infoln("volume is not local:", err, r.URL.Path)
			w.WriteHeader(http.StatusNotFound)
			return
		}
		lookupResult, err := operation.Lookup(vs.GetMasterNode(), volumeId.String())
		glog.V(2).Infoln("volume", volumeId, "found on", lookupResult, "error", err)
		if err == nil && len(lookupResult.Locations) > 0 {
			u, _ := url.Parse(util.NormalizeUrl(lookupResult.Locations[0].PublicUrl))
			u.Path = r.URL.Path
			arg := url.Values{}
			if c := r.FormValue("collection"); c != "" {
				arg.Set("collection", c)
			}
			u.RawQuery = arg.Encode()
			http.Redirect(w, r, u.String(), http.StatusMovedPermanently)

		} else {
			glog.V(2).Infoln("lookup error:", err, r.URL.Path)
			w.WriteHeader(http.StatusNotFound)
		}
		return
	}
	cookie := n.Cookie
	count, e := vs.store.ReadVolumeNeedle(volumeId, n)
	glog.V(4).Infoln("read bytes", count, "error", e)
	if e != nil || count <= 0 {
		glog.V(0).Infoln("read error:", e, r.URL.Path)
		w.WriteHeader(http.StatusNotFound)
		return
	}
	defer n.ReleaseMemory()
	if n.Cookie != cookie {
		glog.V(0).Infoln("request", r.URL.Path, "with unmaching cookie seen:", cookie, "expected:", n.Cookie, "from", r.RemoteAddr, "agent", r.UserAgent())
		w.WriteHeader(http.StatusNotFound)
		return
	}
	if n.LastModified != 0 {
		w.Header().Set("Last-Modified", time.Unix(int64(n.LastModified), 0).UTC().Format(http.TimeFormat))
		if r.Header.Get("If-Modified-Since") != "" {
			if t, parseError := time.Parse(http.TimeFormat, r.Header.Get("If-Modified-Since")); parseError == nil {
				if t.Unix() >= int64(n.LastModified) {
					w.WriteHeader(http.StatusNotModified)
					return
				}
			}
		}
	}
	etag := n.Etag()
	if inm := r.Header.Get("If-None-Match"); inm == etag {
		w.WriteHeader(http.StatusNotModified)
		return
	}
	w.Header().Set("Etag", etag)

	if vs.tryHandleChunkedFile(n, filename, w, r) {
		return
	}

	if n.NameSize > 0 && filename == "" {
		filename = string(n.Name)
		if ext == "" {
			ext = path.Ext(filename)
		}
	}
	mtype := ""
	if n.MimeSize > 0 {
		mt := string(n.Mime)
		if !strings.HasPrefix(mt, "application/octet-stream") {
			mtype = mt
		}
	}

	if ext != ".gz" {
		if n.IsGzipped() {
			if strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
				w.Header().Set("Content-Encoding", "gzip")
			} else {
				if n.Data, err = operation.UnGzipData(n.Data); err != nil {
					glog.V(0).Infoln("ungzip error:", err, r.URL.Path)
				}
			}
		}
	}
	if ext == ".png" || ext == ".jpg" || ext == ".gif" {
		width, height := 0, 0
		if r.FormValue("width") != "" {
			width, _ = strconv.Atoi(r.FormValue("width"))
		}
		if r.FormValue("height") != "" {
			height, _ = strconv.Atoi(r.FormValue("height"))
		}
		n.Data, _, _ = images.Resized(ext, n.Data, width, height)
	}

	if e := writeResponseContent(filename, mtype, bytes.NewReader(n.Data), w, r); e != nil {
		glog.V(2).Infoln("response write error:", e)
	}
}