Default more not to gzip since gzip can be done on client side.

weed-fs/src/pkg/storage/compress.go

@@ -8,7 +8,13 @@ import (
 	"strings"
 )
 
+/*
+* Default more not to gzip since gzip can be done on client side.
+*/
 func IsGzippable(ext, mtype string) bool {
+    if strings.HasPrefix(mtype, "text/"){
+        return true
+    }
 	if ext == ".zip" {
 		return false
 	}
@@ -18,21 +24,35 @@ func IsGzippable(ext, mtype string) bool {
 	if ext == ".gz" {
 		return false
 	}
-  if strings.Index(mtype,"text/")==0 {
+	if ext == ".pdf" {
+		return true
+	}
+	if ext == ".css" {
+		return true
+	}
+	if ext == ".js" {
 		return true
 	}
-  if strings.Index(mtype,"application/")==0 {
+    if ext == ".json" {
         return true
+    }
+	if strings.HasPrefix(mtype, "application/") {
+		if strings.HasSuffix(mtype, "xml") {
+			return true
+		}
+		if strings.HasSuffix(mtype, "script") {
+			return true
+		}
 	}
 	return false
 }
 func GzipData(input []byte) []byte {
 	buf := new(bytes.Buffer)
 	w, _ := gzip.NewWriterLevel(buf, flate.BestCompression)
-  if _, err := w.Write(input); err!=nil {
+	if _, err := w.Write(input); err != nil {
 		println("error compressing data:", err)
 	}
-  if err := w.Close(); err!=nil {
+	if err := w.Close(); err != nil {
 		println("error closing compressed data:", err)
 	}
 	return buf.Bytes()
@@ -42,7 +62,7 @@ func UnGzipData(input []byte) []byte {
 	r, _ := gzip.NewReader(buf)
 	defer r.Close()
 	output, err := ioutil.ReadAll(r)
-  if err!=nil {
+	if err != nil {
 		println("error uncompressing data:", err)
 	}
 	return output