func DeleteHandler(w http.ResponseWriter, r *http.Request) {
n := new(storage.Needle)
vid, fid, _ := parseURLPath(r.URL.Path)
volumeId, _ := storage.NewVolumeId(vid)
n.ParsePath(fid)
debug("deleting", n)
cookie := n.Cookie
count, ok := store.Read(volumeId, n)
if ok != nil {
m := make(map[string]uint32)
m["size"] = 0
writeJson(w, r, m)
return
}
if n.Cookie != cookie {
log.Println("delete with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
return
}
n.Size = 0
ret := store.Delete(volumeId, n)
needToReplicate := !store.HasVolume(volumeId)
if !needToReplicate && ret > 0 {
needToReplicate = store.GetVolume(volumeId).NeedToReplicate()
}
if needToReplicate { //send to other replica locations
if r.FormValue("type") != "standard" {
if !distributedOperation(volumeId, func(location operation.Location) bool {
return nil == operation.Delete("http://"+location.Url+r.URL.Path+"?type=standard")
}) {
ret = 0
}
}
}
if ret != 0 {
w.WriteHeader(http.StatusAccepted)
} else {
w.WriteHeader(http.StatusInternalServerError)
}
m := make(map[string]uint32)
m["size"] = uint32(count)
writeJson(w, r, m)
}
func GetHandler(w http.ResponseWriter, r *http.Request) {
n := new(storage.Needle)
vid, fid, ext := parseURLPath(r.URL.Path)
volumeId, err := storage.NewVolumeId(vid)
if err != nil {
debug("parsing error:", err, r.URL.Path)
return
}
n.ParsePath(fid)
debug("volume", volumeId, "reading", n)
if !store.HasVolume(volumeId) {
lookupResult, err := operation.Lookup(*masterNode, volumeId)
debug("volume", volumeId, "found on", lookupResult, "error", err)
if err == nil {
http.Redirect(w, r, "http://"+lookupResult.Locations[0].PublicUrl+r.URL.Path, http.StatusMovedPermanently)
} else {
debug("lookup error:", err, r.URL.Path)
w.WriteHeader(http.StatusNotFound)
}
return
}
cookie := n.Cookie
count, e := store.Read(volumeId, n)
debug("read bytes", count, "error", e)
if e != nil || count <= 0 {
debug("read error:", e, r.URL.Path)
w.WriteHeader(http.StatusNotFound)
return
}
if n.Cookie != cookie {
log.Println("request with unmaching cookie from ", r.RemoteAddr, "agent", r.UserAgent())
w.WriteHeader(http.StatusNotFound)
return
}
if ext != "" {
mtype := mime.TypeByExtension(ext)
w.Header().Set("Content-Type", mtype)
if storage.IsGzippable(ext, mtype) {
if strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
w.Header().Set("Content-Encoding", "gzip")
} else {
n.Data = storage.UnGzipData(n.Data)
}
}
}
w.Write(n.Data)
}