volume: avoid special logic for .gz files

weed/server/volume_server_handlers_read.go

@@ -26,6 +26,8 @@ var fileNameEscaper = strings.NewReplacer("\\", "\\\\", "\"", "\\\"")
 
 func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request) {
 
+	// println(r.Method + " " + r.URL.Path)
+
 	stats.VolumeServerRequestCounter.WithLabelValues("get").Inc()
 	start := time.Now()
 	defer func() { stats.VolumeServerRequestHistogram.WithLabelValues("get").Observe(time.Since(start).Seconds()) }()
@@ -142,20 +144,18 @@ func (vs *VolumeServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request)
 		}
 	}
 
-	if ext != ".gz" && ext != ".zst" {
-		if n.IsCompressed() {
-			if _, _, _, shouldResize := shouldResizeImages(ext, r); shouldResize {
-				if n.Data, err = util.DecompressData(n.Data); err != nil {
-					glog.V(0).Infoln("ungzip error:", err, r.URL.Path)
-				}
-			} else if strings.Contains(r.Header.Get("Accept-Encoding"), "zstd") && util.IsZstdContent(n.Data) {
-				w.Header().Set("Content-Encoding", "zstd")
-			} else if strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") && util.IsGzippedContent(n.Data) {
-				w.Header().Set("Content-Encoding", "gzip")
-			} else {
-				if n.Data, err = util.DecompressData(n.Data); err != nil {
-					glog.V(0).Infoln("uncompress error:", err, r.URL.Path)
-				}
+	if n.IsCompressed() {
+		if _, _, _, shouldResize := shouldResizeImages(ext, r); shouldResize {
+			if n.Data, err = util.DecompressData(n.Data); err != nil {
+				glog.V(0).Infoln("ungzip error:", err, r.URL.Path)
+			}
+		} else if strings.Contains(r.Header.Get("Accept-Encoding"), "zstd") && util.IsZstdContent(n.Data) {
+			w.Header().Set("Content-Encoding", "zstd")
+		} else if strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") && util.IsGzippedContent(n.Data) {
+			w.Header().Set("Content-Encoding", "gzip")
+		} else {
+			if n.Data, err = util.DecompressData(n.Data); err != nil {
+				glog.V(0).Infoln("uncompress error:", err, r.URL.Path)
 			}
 		}
 	}