Add the file downloader.

rest/alien_controller.go

@@ -3,12 +3,12 @@ package rest
 import (
 	"fmt"
 	"net/http"
-	"net/url"
 	"os"
 	"regexp"
 	"strconv"
-	"strings"
 	"time"
+	"strings"
+	"net/url"
 )
 
 type AlienController struct {
@@ -347,22 +347,21 @@ func (this *AlienController) Download(writer http.ResponseWriter, request *http.
 	this.PanicError(err)
 	defer diskFile.Close()
 
-	// 防止中文乱码
-	fileName := url.QueryEscape(matter.Name)
-	mimeType := GetMimeType(fileName)
-	writer.Header().Set("Content-Type", mimeType)
-
-	//如果是图片或者文本或者视频就直接打开。其余的一律以下载形式返回。
-	if strings.Index(mimeType, "image") != 0 && strings.Index(mimeType, "text") != 0 && strings.Index(mimeType, "video") != 0 {
-		writer.Header().Set("content-disposition", "attachment; filename=\""+fileName+"\"")
-	}
-
 	//对图片做缩放处理。
 	imageProcess := request.FormValue("imageProcess")
 	if imageProcess == "resize" {
 		this.matterService.ResizeImage(writer, request, matter, diskFile)
 	} else {
 
+		//如果是图片或者文本或者视频就直接打开。其余的一律以下载形式返回。
+		fileName := url.QueryEscape(matter.Name)
+		mimeType := GetMimeType(fileName)
+		if strings.Index(mimeType, "image") != 0 && strings.Index(mimeType, "text") != 0 && strings.Index(mimeType, "video") != 0 {
+			writer.Header().Set("content-disposition", "attachment; filename=\""+fileName+"\"")
+		}
+
+		this.matterService.DownloadFile(writer, request, matter, diskFile)
+
 		//显示文件大小。
 		//fileInfo, err := diskFile.Stat()
 		//if err != nil {