directory structure change to work with glide

glide has its own requirements. My previous workaround caused me some
code checkin errors. Need to fix this.

weed/server/volume_server_handlers_write.go

@@ -0,0 +1,165 @@
+package weed_server
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/operation"
+	"github.com/chrislusf/seaweedfs/weed/storage"
+	"github.com/chrislusf/seaweedfs/weed/topology"
+)
+
+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)
+}
+
+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))
+	}
+
+}
+
+//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)
+}