mirror of
https://github.com/seaweedfs/seaweedfs.git
synced 2024-01-19 02:48:24 +00:00
refactoring
This commit is contained in:
parent
a6e948840d
commit
4f47b8cff9
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@ -1,21 +1,7 @@
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package weed_server
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package weed_server
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import (
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import (
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"bytes"
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"encoding/json"
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"errors"
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"io"
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"io/ioutil"
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"net/http"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/operation"
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"github.com/chrislusf/seaweedfs/weed/storage"
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"github.com/chrislusf/seaweedfs/weed/util"
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"github.com/syndtr/goleveldb/leveldb"
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)
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)
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func (fs *FilerServer) filerHandler(w http.ResponseWriter, r *http.Request) {
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func (fs *FilerServer) filerHandler(w http.ResponseWriter, r *http.Request) {
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@ -32,234 +18,3 @@ func (fs *FilerServer) filerHandler(w http.ResponseWriter, r *http.Request) {
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fs.PostHandler(w, r)
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fs.PostHandler(w, r)
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}
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}
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}
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}
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// listDirectoryHandler lists directories and folers under a directory
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// files are sorted by name and paginated via "lastFileName" and "limit".
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// sub directories are listed on the first page, when "lastFileName"
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// is empty.
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func (fs *FilerServer) listDirectoryHandler(w http.ResponseWriter, r *http.Request) {
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if !strings.HasSuffix(r.URL.Path, "/") {
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return
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}
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dirlist, err := fs.filer.ListDirectories(r.URL.Path)
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if err == leveldb.ErrNotFound {
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glog.V(3).Infoln("Directory Not Found in db", r.URL.Path)
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w.WriteHeader(http.StatusNotFound)
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return
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}
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m := make(map[string]interface{})
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m["Directory"] = r.URL.Path
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lastFileName := r.FormValue("lastFileName")
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if lastFileName == "" {
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m["Subdirectories"] = dirlist
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}
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limit, limit_err := strconv.Atoi(r.FormValue("limit"))
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if limit_err != nil {
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limit = 100
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}
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m["Files"], _ = fs.filer.ListFiles(r.URL.Path, lastFileName, limit)
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writeJsonQuiet(w, r, http.StatusOK, m)
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}
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func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request, isGetMethod bool) {
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if strings.HasSuffix(r.URL.Path, "/") {
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if fs.disableDirListing {
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w.WriteHeader(http.StatusMethodNotAllowed)
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return
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}
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fs.listDirectoryHandler(w, r)
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return
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}
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fileId, err := fs.filer.FindFile(r.URL.Path)
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if err == leveldb.ErrNotFound {
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glog.V(3).Infoln("Not found in db", r.URL.Path)
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w.WriteHeader(http.StatusNotFound)
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return
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}
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urlLocation, err := operation.LookupFileId(fs.master, fileId)
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if err != nil {
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glog.V(1).Infoln("operation LookupFileId %s failed, err is %s", fileId, err.Error())
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w.WriteHeader(http.StatusNotFound)
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return
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}
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urlString := urlLocation
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if fs.redirectOnRead {
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http.Redirect(w, r, urlString, http.StatusFound)
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return
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}
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u, _ := url.Parse(urlString)
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request := &http.Request{
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Method: r.Method,
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URL: u,
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Proto: r.Proto,
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ProtoMajor: r.ProtoMajor,
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ProtoMinor: r.ProtoMinor,
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Header: r.Header,
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Body: r.Body,
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Host: r.Host,
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ContentLength: r.ContentLength,
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}
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glog.V(3).Infoln("retrieving from", u)
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resp, do_err := util.Do(request)
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if do_err != nil {
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glog.V(0).Infoln("failing to connect to volume server", do_err.Error())
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writeJsonError(w, r, http.StatusInternalServerError, do_err)
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return
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}
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defer resp.Body.Close()
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for k, v := range resp.Header {
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w.Header()[k] = v
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}
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w.WriteHeader(resp.StatusCode)
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io.Copy(w, resp.Body)
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}
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type analogueReader struct {
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*bytes.Buffer
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}
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// So that it implements the io.ReadCloser interface
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func (m analogueReader) Close() error { return nil }
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func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request) {
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query := r.URL.Query()
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replication := query.Get("replication")
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if replication == "" {
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replication = fs.defaultReplication
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}
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collection := query.Get("collection")
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if collection == "" {
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collection = fs.collection
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}
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var fileId string
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var err error
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var urlLocation string
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if r.Method == "PUT" {
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buf, _ := ioutil.ReadAll(r.Body)
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r.Body = analogueReader{bytes.NewBuffer(buf)}
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fileName, _, _, _, _, _, _, pe := storage.ParseUpload(r)
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if pe != nil {
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glog.V(0).Infoln("failing to parse post body", pe.Error())
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writeJsonError(w, r, http.StatusInternalServerError, pe)
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return
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}
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//reconstruct http request body for following new request to volume server
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r.Body = analogueReader{bytes.NewBuffer(buf)}
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path := r.URL.Path
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if strings.HasSuffix(path, "/") {
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if fileName != "" {
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path += fileName
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}
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}
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if fileId, err = fs.filer.FindFile(path); err != nil && err != leveldb.ErrNotFound {
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glog.V(0).Infoln("failing to find path in filer store", path, err.Error())
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writeJsonError(w, r, http.StatusInternalServerError, err)
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return
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} else if fileId != "" && err == nil {
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var le error
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urlLocation, le = operation.LookupFileId(fs.master, fileId)
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if le != nil {
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glog.V(1).Infoln("operation LookupFileId %s failed, err is %s", fileId, le.Error())
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w.WriteHeader(http.StatusNotFound)
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return
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}
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}
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} else {
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assignResult, ae := operation.Assign(fs.master, 1, replication, collection, query.Get("ttl"))
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if ae != nil {
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glog.V(0).Infoln("failing to assign a file id", ae.Error())
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writeJsonError(w, r, http.StatusInternalServerError, ae)
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return
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}
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fileId = assignResult.Fid
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urlLocation = "http://" + assignResult.Url + "/" + assignResult.Fid
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}
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u, _ := url.Parse(urlLocation)
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glog.V(4).Infoln("post to", u)
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request := &http.Request{
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Method: r.Method,
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URL: u,
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Proto: r.Proto,
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ProtoMajor: r.ProtoMajor,
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ProtoMinor: r.ProtoMinor,
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Header: r.Header,
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Body: r.Body,
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Host: r.Host,
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ContentLength: r.ContentLength,
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}
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resp, do_err := util.Do(request)
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if do_err != nil {
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glog.V(0).Infoln("failing to connect to volume server", r.RequestURI, do_err.Error())
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writeJsonError(w, r, http.StatusInternalServerError, do_err)
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return
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}
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defer resp.Body.Close()
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resp_body, ra_err := ioutil.ReadAll(resp.Body)
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if ra_err != nil {
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glog.V(0).Infoln("failing to upload to volume server", r.RequestURI, ra_err.Error())
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writeJsonError(w, r, http.StatusInternalServerError, ra_err)
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return
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}
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glog.V(4).Infoln("post result", string(resp_body))
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var ret operation.UploadResult
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unmarshal_err := json.Unmarshal(resp_body, &ret)
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if unmarshal_err != nil {
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glog.V(0).Infoln("failing to read upload resonse", r.RequestURI, string(resp_body))
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writeJsonError(w, r, http.StatusInternalServerError, unmarshal_err)
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return
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}
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if ret.Error != "" {
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glog.V(0).Infoln("failing to post to volume server", r.RequestURI, ret.Error)
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writeJsonError(w, r, http.StatusInternalServerError, errors.New(ret.Error))
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return
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}
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path := r.URL.Path
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if strings.HasSuffix(path, "/") {
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if ret.Name != "" {
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path += ret.Name
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} else {
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operation.DeleteFile(fs.master, fileId, fs.jwt(fileId)) //clean up
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glog.V(0).Infoln("Can not to write to folder", path, "without a file name!")
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writeJsonError(w, r, http.StatusInternalServerError,
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errors.New("Can not to write to folder "+path+" without a file name"))
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return
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}
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}
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glog.V(4).Infoln("saving", path, "=>", fileId)
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if db_err := fs.filer.CreateFile(path, fileId); db_err != nil {
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operation.DeleteFile(fs.master, fileId, fs.jwt(fileId)) //clean up
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glog.V(0).Infof("failing to write %s to filer server : %v", path, db_err)
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writeJsonError(w, r, http.StatusInternalServerError, db_err)
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return
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}
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w.WriteHeader(http.StatusCreated)
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w.Write(resp_body)
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}
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// curl -X DELETE http://localhost:8888/path/to
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// curl -X DELETE http://localhost:8888/path/to?recursive=true
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func (fs *FilerServer) DeleteHandler(w http.ResponseWriter, r *http.Request) {
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var err error
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var fid string
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if strings.HasSuffix(r.URL.Path, "/") {
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isRecursive := r.FormValue("recursive") == "true"
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err = fs.filer.DeleteDirectory(r.URL.Path, isRecursive)
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} else {
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fid, err = fs.filer.DeleteFile(r.URL.Path)
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if err == nil && fid != "" {
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err = operation.DeleteFile(fs.master, fid, fs.jwt(fid))
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}
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}
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if err == nil {
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writeJsonQuiet(w, r, http.StatusAccepted, map[string]string{"error": ""})
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} else {
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glog.V(4).Infoln("deleting", r.URL.Path, ":", err.Error())
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writeJsonError(w, r, http.StatusInternalServerError, err)
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}
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}
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97
weed/server/filer_server_handlers_read.go
Normal file
97
weed/server/filer_server_handlers_read.go
Normal file
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@ -0,0 +1,97 @@
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package weed_server
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import (
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"io"
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"net/http"
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"net/url"
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"strconv"
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"strings"
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"github.com/chrislusf/seaweedfs/weed/glog"
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"github.com/chrislusf/seaweedfs/weed/operation"
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"github.com/chrislusf/seaweedfs/weed/util"
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"github.com/syndtr/goleveldb/leveldb"
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)
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// listDirectoryHandler lists directories and folers under a directory
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// files are sorted by name and paginated via "lastFileName" and "limit".
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// sub directories are listed on the first page, when "lastFileName"
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// is empty.
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func (fs *FilerServer) listDirectoryHandler(w http.ResponseWriter, r *http.Request) {
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if !strings.HasSuffix(r.URL.Path, "/") {
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return
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}
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dirlist, err := fs.filer.ListDirectories(r.URL.Path)
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if err == leveldb.ErrNotFound {
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glog.V(3).Infoln("Directory Not Found in db", r.URL.Path)
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w.WriteHeader(http.StatusNotFound)
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return
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}
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m := make(map[string]interface{})
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m["Directory"] = r.URL.Path
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lastFileName := r.FormValue("lastFileName")
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if lastFileName == "" {
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m["Subdirectories"] = dirlist
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}
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limit, limit_err := strconv.Atoi(r.FormValue("limit"))
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if limit_err != nil {
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limit = 100
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}
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m["Files"], _ = fs.filer.ListFiles(r.URL.Path, lastFileName, limit)
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writeJsonQuiet(w, r, http.StatusOK, m)
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}
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func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request, isGetMethod bool) {
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if strings.HasSuffix(r.URL.Path, "/") {
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if fs.disableDirListing {
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w.WriteHeader(http.StatusMethodNotAllowed)
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return
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}
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fs.listDirectoryHandler(w, r)
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return
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}
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fileId, err := fs.filer.FindFile(r.URL.Path)
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if err == leveldb.ErrNotFound {
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glog.V(3).Infoln("Not found in db", r.URL.Path)
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w.WriteHeader(http.StatusNotFound)
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return
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}
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urlLocation, err := operation.LookupFileId(fs.master, fileId)
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if err != nil {
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glog.V(1).Infoln("operation LookupFileId %s failed, err is %s", fileId, err.Error())
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w.WriteHeader(http.StatusNotFound)
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return
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}
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urlString := urlLocation
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if fs.redirectOnRead {
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http.Redirect(w, r, urlString, http.StatusFound)
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return
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}
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u, _ := url.Parse(urlString)
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request := &http.Request{
|
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Method: r.Method,
|
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|
URL: u,
|
||||||
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Proto: r.Proto,
|
||||||
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ProtoMajor: r.ProtoMajor,
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||||||
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ProtoMinor: r.ProtoMinor,
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||||||
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Header: r.Header,
|
||||||
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Body: r.Body,
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Host: r.Host,
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ContentLength: r.ContentLength,
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}
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glog.V(3).Infoln("retrieving from", u)
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resp, do_err := util.Do(request)
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|
if do_err != nil {
|
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glog.V(0).Infoln("failing to connect to volume server", do_err.Error())
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||||||
|
writeJsonError(w, r, http.StatusInternalServerError, do_err)
|
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|
return
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|
}
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|
defer resp.Body.Close()
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||||||
|
for k, v := range resp.Header {
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|
w.Header()[k] = v
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}
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w.WriteHeader(resp.StatusCode)
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io.Copy(w, resp.Body)
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}
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165
weed/server/filer_server_handlers_write.go
Normal file
165
weed/server/filer_server_handlers_write.go
Normal file
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@ -0,0 +1,165 @@
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|
package weed_server
|
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|
|
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|
import (
|
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|
"bytes"
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|
"encoding/json"
|
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|
"errors"
|
||||||
|
"io/ioutil"
|
||||||
|
"net/http"
|
||||||
|
"net/url"
|
||||||
|
"strings"
|
||||||
|
|
||||||
|
"github.com/chrislusf/seaweedfs/weed/glog"
|
||||||
|
"github.com/chrislusf/seaweedfs/weed/operation"
|
||||||
|
"github.com/chrislusf/seaweedfs/weed/storage"
|
||||||
|
"github.com/chrislusf/seaweedfs/weed/util"
|
||||||
|
"github.com/syndtr/goleveldb/leveldb"
|
||||||
|
)
|
||||||
|
|
||||||
|
type analogueReader struct {
|
||||||
|
*bytes.Buffer
|
||||||
|
}
|
||||||
|
|
||||||
|
// So that it implements the io.ReadCloser interface
|
||||||
|
func (m analogueReader) Close() error { return nil }
|
||||||
|
|
||||||
|
func (fs *FilerServer) PostHandler(w http.ResponseWriter, r *http.Request) {
|
||||||
|
query := r.URL.Query()
|
||||||
|
replication := query.Get("replication")
|
||||||
|
if replication == "" {
|
||||||
|
replication = fs.defaultReplication
|
||||||
|
}
|
||||||
|
collection := query.Get("collection")
|
||||||
|
if collection == "" {
|
||||||
|
collection = fs.collection
|
||||||
|
}
|
||||||
|
|
||||||
|
var fileId string
|
||||||
|
var err error
|
||||||
|
var urlLocation string
|
||||||
|
if r.Method == "PUT" {
|
||||||
|
buf, _ := ioutil.ReadAll(r.Body)
|
||||||
|
r.Body = analogueReader{bytes.NewBuffer(buf)}
|
||||||
|
fileName, _, _, _, _, _, _, pe := storage.ParseUpload(r)
|
||||||
|
if pe != nil {
|
||||||
|
glog.V(0).Infoln("failing to parse post body", pe.Error())
|
||||||
|
writeJsonError(w, r, http.StatusInternalServerError, pe)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
//reconstruct http request body for following new request to volume server
|
||||||
|
r.Body = analogueReader{bytes.NewBuffer(buf)}
|
||||||
|
|
||||||
|
path := r.URL.Path
|
||||||
|
if strings.HasSuffix(path, "/") {
|
||||||
|
if fileName != "" {
|
||||||
|
path += fileName
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if fileId, err = fs.filer.FindFile(path); err != nil && err != leveldb.ErrNotFound {
|
||||||
|
glog.V(0).Infoln("failing to find path in filer store", path, err.Error())
|
||||||
|
writeJsonError(w, r, http.StatusInternalServerError, err)
|
||||||
|
return
|
||||||
|
} else if fileId != "" && err == nil {
|
||||||
|
var le error
|
||||||
|
urlLocation, le = operation.LookupFileId(fs.master, fileId)
|
||||||
|
if le != nil {
|
||||||
|
glog.V(1).Infoln("operation LookupFileId %s failed, err is %s", fileId, le.Error())
|
||||||
|
w.WriteHeader(http.StatusNotFound)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
assignResult, ae := operation.Assign(fs.master, 1, replication, collection, query.Get("ttl"))
|
||||||
|
if ae != nil {
|
||||||
|
glog.V(0).Infoln("failing to assign a file id", ae.Error())
|
||||||
|
writeJsonError(w, r, http.StatusInternalServerError, ae)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
fileId = assignResult.Fid
|
||||||
|
urlLocation = "http://" + assignResult.Url + "/" + assignResult.Fid
|
||||||
|
}
|
||||||
|
|
||||||
|
u, _ := url.Parse(urlLocation)
|
||||||
|
glog.V(4).Infoln("post to", u)
|
||||||
|
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,
|
||||||
|
}
|
||||||
|
resp, do_err := util.Do(request)
|
||||||
|
if do_err != nil {
|
||||||
|
glog.V(0).Infoln("failing to connect to volume server", r.RequestURI, do_err.Error())
|
||||||
|
writeJsonError(w, r, http.StatusInternalServerError, do_err)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
defer resp.Body.Close()
|
||||||
|
resp_body, ra_err := ioutil.ReadAll(resp.Body)
|
||||||
|
if ra_err != nil {
|
||||||
|
glog.V(0).Infoln("failing to upload to volume server", r.RequestURI, ra_err.Error())
|
||||||
|
writeJsonError(w, r, http.StatusInternalServerError, ra_err)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
glog.V(4).Infoln("post result", string(resp_body))
|
||||||
|
var ret operation.UploadResult
|
||||||
|
unmarshal_err := json.Unmarshal(resp_body, &ret)
|
||||||
|
if unmarshal_err != nil {
|
||||||
|
glog.V(0).Infoln("failing to read upload resonse", r.RequestURI, string(resp_body))
|
||||||
|
writeJsonError(w, r, http.StatusInternalServerError, unmarshal_err)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
if ret.Error != "" {
|
||||||
|
glog.V(0).Infoln("failing to post to volume server", r.RequestURI, ret.Error)
|
||||||
|
writeJsonError(w, r, http.StatusInternalServerError, errors.New(ret.Error))
|
||||||
|
return
|
||||||
|
}
|
||||||
|
path := r.URL.Path
|
||||||
|
if strings.HasSuffix(path, "/") {
|
||||||
|
if ret.Name != "" {
|
||||||
|
path += ret.Name
|
||||||
|
} else {
|
||||||
|
operation.DeleteFile(fs.master, fileId, fs.jwt(fileId)) //clean up
|
||||||
|
glog.V(0).Infoln("Can not to write to folder", path, "without a file name!")
|
||||||
|
writeJsonError(w, r, http.StatusInternalServerError,
|
||||||
|
errors.New("Can not to write to folder "+path+" without a file name"))
|
||||||
|
return
|
||||||
|
}
|
||||||
|
}
|
||||||
|
glog.V(4).Infoln("saving", path, "=>", fileId)
|
||||||
|
if db_err := fs.filer.CreateFile(path, fileId); db_err != nil {
|
||||||
|
operation.DeleteFile(fs.master, fileId, fs.jwt(fileId)) //clean up
|
||||||
|
glog.V(0).Infof("failing to write %s to filer server : %v", path, db_err)
|
||||||
|
writeJsonError(w, r, http.StatusInternalServerError, db_err)
|
||||||
|
return
|
||||||
|
}
|
||||||
|
w.WriteHeader(http.StatusCreated)
|
||||||
|
w.Write(resp_body)
|
||||||
|
}
|
||||||
|
|
||||||
|
// 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) {
|
||||||
|
var err error
|
||||||
|
var fid string
|
||||||
|
if strings.HasSuffix(r.URL.Path, "/") {
|
||||||
|
isRecursive := r.FormValue("recursive") == "true"
|
||||||
|
err = fs.filer.DeleteDirectory(r.URL.Path, isRecursive)
|
||||||
|
} else {
|
||||||
|
fid, err = fs.filer.DeleteFile(r.URL.Path)
|
||||||
|
if err == nil && fid != "" {
|
||||||
|
err = operation.DeleteFile(fs.master, fid, fs.jwt(fid))
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if err == nil {
|
||||||
|
writeJsonQuiet(w, r, http.StatusAccepted, map[string]string{"error": ""})
|
||||||
|
} else {
|
||||||
|
glog.V(4).Infoln("deleting", r.URL.Path, ":", err.Error())
|
||||||
|
writeJsonError(w, r, http.StatusInternalServerError, err)
|
||||||
|
}
|
||||||
|
}
|
Loading…
Reference in a new issue