refactoring the close http response

weed/s3api/s3api_object_handlers.go

@@ -13,6 +13,7 @@ import (
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/server"
+	"github.com/chrislusf/seaweedfs/weed/util"
 )
 
 var (
@@ -145,9 +146,10 @@ func (s3a *S3ApiServer) proxyToFiler(w http.ResponseWriter, r *http.Request, des
 		writeErrorResponse(w, ErrInternalError, r.URL)
 		return
 	}
-	defer resp.Body.Close()
+	defer util.CloseResponse(resp)
 
 	responseFn(resp, w)
+
 }
 func passThroughResponse(proxyResonse *http.Response, w http.ResponseWriter) {
 	for k, v := range proxyResonse.Header {

weed/util/http_util.go

@@ -88,7 +88,7 @@ func Head(url string) (http.Header, error) {
 	if err != nil {
 		return nil, err
 	}
-	defer closeResp(r)
+	defer CloseResponse(r)
 	if r.StatusCode >= 400 {
 		return nil, fmt.Errorf("%s: %s", url, r.Status)
 	}
@@ -130,7 +130,7 @@ func GetBufferStream(url string, values url.Values, allocatedBytes []byte, eachB
 	if err != nil {
 		return err
 	}
-	defer closeResp(r)
+	defer CloseResponse(r)
 	if r.StatusCode != 200 {
 		return fmt.Errorf("%s: %s", url, r.Status)
 	}
@@ -153,7 +153,7 @@ func GetUrlStream(url string, values url.Values, readFn func(io.Reader) error) e
 	if err != nil {
 		return err
 	}
-	defer closeResp(r)
+	defer CloseResponse(r)
 	if r.StatusCode != 200 {
 		return fmt.Errorf("%s: %s", url, r.Status)
 	}
@@ -262,7 +262,7 @@ func ReadUrlAsStream(fileUrl string, offset int64, size int, fn func(data []byte
 	if err != nil {
 		return 0, err
 	}
-	defer closeResp(r)
+	defer CloseResponse(r)
 	if r.StatusCode >= 400 {
 		return 0, fmt.Errorf("%s: %s", fileUrl, r.Status)
 	}
@@ -308,7 +308,7 @@ func ReadUrlAsReaderCloser(fileUrl string, rangeHeader string) (io.ReadCloser, e
 	return r.Body, nil
 }
 
-func closeResp(resp *http.Response) {
+func CloseResponse(resp *http.Response) {
 	io.Copy(ioutil.Discard, resp.Body)
 	resp.Body.Close()
 }