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package weed_server |
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import ( |
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"context" |
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"net/http" |
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"strings" |
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"github.com/chrislusf/seaweedfs/weed/glog" |
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"github.com/chrislusf/seaweedfs/weed/storage/needle" |
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"github.com/chrislusf/seaweedfs/weed/util" |
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) |
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// add or replace one file Seaweed- prefixed attributes
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// curl -X PUT -H "Seaweed-Name1: value1" http://localhost:8888/path/to/a/file?tagging
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func (fs *FilerServer) PutTaggingHandler(w http.ResponseWriter, r *http.Request) { |
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ctx := context.Background() |
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path := r.URL.Path |
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if strings.HasSuffix(path, "/") { |
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path = path[:len(path)-1] |
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} |
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existingEntry, err := fs.filer.FindEntry(ctx, util.FullPath(path)) |
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if err != nil { |
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writeJsonError(w, r, http.StatusNotFound, err) |
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return |
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} |
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if existingEntry == nil { |
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writeJsonError(w, r, http.StatusNotFound, err) |
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return |
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} |
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if existingEntry.Extended == nil { |
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existingEntry.Extended = make(map[string][]byte) |
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} |
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for header, values := range r.Header { |
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if strings.HasPrefix(header, needle.PairNamePrefix) { |
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for _, value := range values { |
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existingEntry.Extended[header] = []byte(value) |
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} |
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} |
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} |
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if dbErr := fs.filer.CreateEntry(ctx, existingEntry, false, false, nil); dbErr != nil { |
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glog.V(0).Infof("failing to update %s tagging : %v", path, dbErr) |
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writeJsonError(w, r, http.StatusInternalServerError, err) |
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return |
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} |
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writeJsonQuiet(w, r, http.StatusAccepted, nil) |
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return |
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} |
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// remove all Seaweed- prefixed attributes
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// curl -X DELETE http://localhost:8888/path/to/a/file?tagging
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func (fs *FilerServer) DeleteTaggingHandler(w http.ResponseWriter, r *http.Request) { |
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ctx := context.Background() |
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path := r.URL.Path |
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if strings.HasSuffix(path, "/") { |
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path = path[:len(path)-1] |
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} |
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existingEntry, err := fs.filer.FindEntry(ctx, util.FullPath(path)) |
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if err != nil { |
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writeJsonError(w, r, http.StatusNotFound, err) |
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return |
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} |
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if existingEntry == nil { |
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writeJsonError(w, r, http.StatusNotFound, err) |
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return |
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} |
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if existingEntry.Extended == nil { |
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existingEntry.Extended = make(map[string][]byte) |
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} |
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hasDeletion := false |
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for header, _ := range existingEntry.Extended { |
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if strings.HasPrefix(header, needle.PairNamePrefix) { |
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delete(existingEntry.Extended, header) |
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hasDeletion = true |
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} |
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} |
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if !hasDeletion { |
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writeJsonQuiet(w, r, http.StatusNotModified, nil) |
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return |
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} |
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if dbErr := fs.filer.CreateEntry(ctx, existingEntry, false, false, nil); dbErr != nil { |
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glog.V(0).Infof("failing to delete %s tagging : %v", path, dbErr) |
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writeJsonError(w, r, http.StatusInternalServerError, err) |
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return |
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} |
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writeJsonQuiet(w, r, http.StatusAccepted, nil) |
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return |
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} |
hilimd
4 years ago
GitHub