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https://github.com/restic/rest-server.git
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Fix tests, add PanicOnError option
- Helper method for internal server errors with consistent logging. - Add PanicOnError option to panic on internal server errors. This makes it easier to traces where the condition was hit in testing.
This commit is contained in:
Konrad Wojas
Alexander Neumann
parent
d4cd47e503
commit
63c8797ba3
3 changed files with 55 additions and 46 deletions
89
repo/repo.go
89
repo/repo.go
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@ -24,6 +24,10 @@ type Options struct {
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DirMode os.FileMode
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FileMode os.FileMode
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// If set, we will panic when an internal server error happens. This
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// makes it easier to debug such errors.
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PanicOnError bool
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BlobMetricFunc BlobMetricFunc
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QuotaManager *quota.Manager
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}
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@ -285,16 +289,13 @@ func (h *Handler) saveConfig(w http.ResponseWriter, r *http.Request) {
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_, err = io.Copy(f, r.Body)
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if err != nil {
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if h.opt.Debug {
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log.Print(err)
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}
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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return
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}
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err = f.Close()
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if err != nil {
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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return
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}
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@ -321,7 +322,7 @@ func (h *Handler) deleteConfig(w http.ResponseWriter, r *http.Request) {
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if os.IsNotExist(err) {
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httpDefaultError(w, http.StatusNotFound)
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} else {
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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}
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return
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}
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@ -354,7 +355,8 @@ func (h *Handler) listBlobsV1(w http.ResponseWriter, r *http.Request) {
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}
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objectType, _ := h.getObject(r.URL.Path)
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if objectType == "" {
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, fmt.Errorf(
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"cannot determine object type: %s", r.URL.Path))
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return
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}
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path := h.getSubPath(objectType)
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@ -391,10 +393,8 @@ func (h *Handler) listBlobsV1(w http.ResponseWriter, r *http.Request) {
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data, err := json.Marshal(names)
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if err != nil {
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if h.opt.Debug {
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log.Print(err)
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}
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, fmt.Errorf(
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"cannot determine object type: %s", r.URL.Path))
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return
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}
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@ -417,7 +417,8 @@ func (h *Handler) listBlobsV2(w http.ResponseWriter, r *http.Request) {
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objectType, _ := h.getObject(r.URL.Path)
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if objectType == "" {
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, fmt.Errorf(
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"cannot determine object type: %s", r.URL.Path))
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return
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}
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path := h.getSubPath(objectType)
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@ -454,10 +455,7 @@ func (h *Handler) listBlobsV2(w http.ResponseWriter, r *http.Request) {
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data, err := json.Marshal(blobs)
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if err != nil {
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if h.opt.Debug {
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log.Print(err)
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}
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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return
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}
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@ -472,8 +470,9 @@ func (h *Handler) checkBlob(w http.ResponseWriter, r *http.Request) {
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}
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objectType, objectID := h.getObject(r.URL.Path)
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if objectType == "" || objectID != "" {
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httpDefaultError(w, http.StatusInternalServerError)
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if objectType == "" || objectID == "" {
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h.internalServerError(w, fmt.Errorf(
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"cannot determine object type or id: %s", r.URL.Path))
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return
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}
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path := h.getObjectPath(objectType, objectID)
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@ -497,8 +496,9 @@ func (h *Handler) getBlob(w http.ResponseWriter, r *http.Request) {
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}
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objectType, objectID := h.getObject(r.URL.Path)
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if objectType == "" || objectID != "" {
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httpDefaultError(w, http.StatusInternalServerError)
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if objectType == "" || objectID == "" {
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h.internalServerError(w, fmt.Errorf(
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"cannot determine object type or id: %s", r.URL.Path))
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return
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}
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path := h.getObjectPath(objectType, objectID)
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@ -516,7 +516,7 @@ func (h *Handler) getBlob(w http.ResponseWriter, r *http.Request) {
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http.ServeContent(wc, r, "", time.Unix(0, 0), file)
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if err = file.Close(); err != nil {
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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return
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}
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@ -530,8 +530,9 @@ func (h *Handler) saveBlob(w http.ResponseWriter, r *http.Request) {
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}
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objectType, objectID := h.getObject(r.URL.Path)
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if objectType == "" || objectID != "" {
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httpDefaultError(w, http.StatusInternalServerError)
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if objectType == "" || objectID == "" {
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h.internalServerError(w, fmt.Errorf(
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"cannot determine object type or id: %s", r.URL.Path))
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return
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}
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path := h.getObjectPath(objectType, objectID)
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@ -552,10 +553,7 @@ func (h *Handler) saveBlob(w http.ResponseWriter, r *http.Request) {
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return
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}
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if err != nil {
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if h.opt.Debug {
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log.Print(err)
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}
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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return
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}
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@ -585,20 +583,14 @@ func (h *Handler) saveBlob(w http.ResponseWriter, r *http.Request) {
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_ = tf.Close()
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_ = os.Remove(path)
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h.incrementRepoSpaceUsage(-written)
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if h.opt.Debug {
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log.Print(err)
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}
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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return
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}
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if err := tf.Close(); err != nil {
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_ = os.Remove(path)
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h.incrementRepoSpaceUsage(-written)
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if h.opt.Debug {
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log.Print(err)
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}
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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return
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}
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@ -612,8 +604,9 @@ func (h *Handler) deleteBlob(w http.ResponseWriter, r *http.Request) {
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}
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objectType, objectID := h.getObject(r.URL.Path)
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if objectType == "" || objectID != "" {
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httpDefaultError(w, http.StatusInternalServerError)
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if objectType == "" || objectID == "" {
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h.internalServerError(w, fmt.Errorf(
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"cannot determine object type or id: %s", r.URL.Path))
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return
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}
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if h.opt.AppendOnly && objectType != "locks" {
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@ -638,7 +631,7 @@ func (h *Handler) deleteBlob(w http.ResponseWriter, r *http.Request) {
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if os.IsNotExist(err) {
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httpDefaultError(w, http.StatusNotFound)
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} else {
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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}
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return
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}
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@ -661,15 +654,13 @@ func (h *Handler) createRepo(w http.ResponseWriter, r *http.Request) {
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log.Printf("Creating repository directories in %s\n", h.path)
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if err := os.MkdirAll(h.path, h.opt.DirMode); err != nil {
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log.Print(err)
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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return
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}
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for _, d := range ObjectTypes {
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if err := os.Mkdir(filepath.Join(h.path, d), h.opt.DirMode); err != nil && !os.IsExist(err) {
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log.Print(err)
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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return
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}
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}
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@ -677,9 +668,19 @@ func (h *Handler) createRepo(w http.ResponseWriter, r *http.Request) {
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for i := 0; i < 256; i++ {
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dirPath := filepath.Join(h.path, "data", fmt.Sprintf("%02x", i))
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if err := os.Mkdir(dirPath, h.opt.DirMode); err != nil && !os.IsExist(err) {
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log.Print(err)
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httpDefaultError(w, http.StatusInternalServerError)
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h.internalServerError(w, err)
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return
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}
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}
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}
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// internalServerError is called to repot an internal server error.
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// The error message will be reported in the server logs. If PanicOnError
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// is set, this will panic instead, which makes debugging easier.
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func (h *Handler) internalServerError(w http.ResponseWriter, err error) {
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log.Printf("ERROR: %v", err)
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if h.opt.PanicOnError {
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panic(fmt.Sprintf("internal server error: %v", err))
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}
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httpDefaultError(w, http.StatusInternalServerError)
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}
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