bytes reader replace string reader

context/acceptencoder.go

@@ -15,6 +15,7 @@
 package context
 
 import (
+	"bytes"
 	"compress/flate"
 	"compress/gzip"
 	"io"
@@ -22,30 +23,24 @@ import (
 	"os"
 	"strconv"
 	"strings"
-
-	"io/ioutil"
 )
 
 // WriteFile reads from file and writes to writer by the specific encoding(gzip/deflate)
 
 func WriteFile(encoding string, writer io.Writer, file *os.File) (bool, string, error) {
-	content, err := ioutil.ReadAll(file)
-	if err != nil {
-		return false, "", err
-	}
-	return writeLevel(encoding, writer, content, flate.BestCompression)
+	return writeLevel(encoding, writer, file, flate.BestCompression)
 }
 
 // WriteBody reads  writes content to writer by the specific encoding(gzip/deflate)
 
 func WriteBody(encoding string, writer io.Writer, content []byte) (bool, string, error) {
-	return writeLevel(encoding, writer, content, flate.BestSpeed)
+	return writeLevel(encoding, writer, bytes.NewReader(content), flate.BestSpeed)
 }
 
 // writeLevel reads from reader,writes to writer by specific encoding and compress level
 // the compress level is defined by deflate package
 
-func writeLevel(encoding string, writer io.Writer, content []byte, level int) (bool, string, error) {
+func writeLevel(encoding string, writer io.Writer, reader io.Reader, level int) (bool, string, error) {
 	var outputWriter io.Writer
 	var err error
 	if cf, ok := encoderMap[encoding]; ok {
@@ -57,7 +52,7 @@ func writeLevel(encoding string, writer io.Writer, content []byte, level int) (b
 	if err != nil {
 		return false, "", err
 	}
-	outputWriter.Write(content)
+	io.Copy(outputWriter, reader)
 	switch outputWriter.(type) {
 	case io.WriteCloser:
 		outputWriter.(io.WriteCloser).Close()

staticfile.go

@@ -87,7 +87,7 @@ func serverStaticRouter(ctx *context.Context) {
 }
 
 type serveContentHolder struct {
-	*strings.Reader
+	*bytes.Reader
 	modTime  time.Time
 	size     int64
 	encoding string
@@ -120,7 +120,7 @@ func openFile(filePath string, fi os.FileInfo, acceptEncoding string) (bool, str
 		if err != nil {
 			return false, "", nil, err
 		}
-		mapFile = &serveContentHolder{Reader: strings.NewReader(string(bufferWriter.Bytes())), modTime: fi.ModTime(), size: int64(bufferWriter.Len()), encoding: n}
+		mapFile = &serveContentHolder{Reader: bytes.NewReader(bufferWriter.Bytes()), modTime: fi.ModTime(), size: int64(bufferWriter.Len()), encoding: n}
 		staticFileMap[mapKey] = mapFile
 	}