Exemplo n.º 1
0
func (ds *Directory) statUnlocked(key string) (store.Stat, string, error) {
	fh, path, err := ds.findAndOpen(key)
	if err != nil {
		return store.Stat{}, "", err
	}
	if fh == nil {
		return store.Stat{}, "", store.ErrNotFound
	}
	defer fh.Close()

	st := store.Stat{}

	_, err = fh.ReadAt(st.SHA256[:], 8)
	if err != nil {
		return store.Stat{}, "", err
	}

	fi, err := fh.Stat()
	if err != nil {
		return store.Stat{}, "", err
	}
	st.Size = fi.Size() - 40
	st.WriteTime = fi.ModTime().Unix()

	return st, path, nil
}
Exemplo n.º 2
0
func (cc *Client) Stat(key string, cancel <-chan struct{}) (store.Stat, error) {
	resp, err := cc.startReq("HEAD", cc.url+url.QueryEscape(key), nil, nil, cancel)
	if err != nil {
		return store.Stat{}, err
	}
	defer resp.Body.Close()

	if resp.StatusCode == 404 {
		return store.Stat{}, store.ErrNotFound
	}

	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
		return store.Stat{}, httputil.ReadResponseAsError(resp)
	}

	st := store.Stat{}

	if sha := resp.Header.Get("X-Content-Sha256"); sha != "" {
		shaBytes, err := hex.DecodeString(sha)
		if err != nil || len(shaBytes) != 32 {
			return store.Stat{}, ErrUnparsableSHAResponse
		}
		copy(st.SHA256[:], shaBytes)
	}

	if timeStr := resp.Header.Get("Last-Modified"); timeStr != "" {
		t, err := time.Parse(http.TimeFormat, timeStr)
		if err == nil {
			st.WriteTime = t.Unix()
		}
	}

	st.Size = resp.ContentLength

	return st, nil
}