style: 错误信息英文返回-lib包

lib/services/file.go

@@ -3,7 +3,6 @@ package services
 import (
 	"bufio"
 	"bytes"
-	"errors"
 	"fmt"
 	"io"
 	"mime/multipart"
@@ -220,7 +219,7 @@ func HandleUploadFormFile(w http.ResponseWriter, r *http.Request) {
 	r.ParseMultipartForm(32 << 20)
 	//mForm := r.MultipartForm
 
-	for k, _ := range r.MultipartForm.File {
+	for k := range r.MultipartForm.File {
 		// k is the key of file part
 		file, fileHeader, err := r.FormFile(k)
 		if err != nil {
@@ -253,7 +252,7 @@ func PostFileHandler(w http.ResponseWriter, r *http.Request) {
 	if !strings.Contains(r.Header.Get("Content-Type"), "multipart/form-data") {
 		// 不支持的 Content-Type 类型
 		fmt.Println("Invalid Content-Type: ", r.Header.Get("Content-Type"))
-		http.Error(w, " 不支持的 Content-Type 类型", http.StatusBadRequest)
+		http.Error(w, " Unsupported Content-Type Types", http.StatusBadRequest)
 		return
 	}
 
@@ -284,7 +283,8 @@ func PostFileHandler(w http.ResponseWriter, r *http.Request) {
 		var buf = &bytes.Buffer{}
 		// 非文件字段部分大小限制验证（非文件字段，go中filename会是空）
 		if fileName == "" {
-			var limitError = "请求主体中非文件字段" + formName + "超出大小限制"
+			// "请求主体中非文件字段" + formName + "超出大小限制"
+			var limitError = fmt.Sprintf("Non-file field %s in request body exceeds size limit", formName)
 			err = uploadSizeLimit(buf, part, ValuesMax, limitError)
 			if err != nil {
 				http.Error(w, err.Error(), http.StatusBadRequest)
@@ -294,7 +294,8 @@ func PostFileHandler(w http.ResponseWriter, r *http.Request) {
 		}
 
 		// 文件字段部分大小限制验证
-		var limitError = "请求主体中文件字段" + fileName + "超出大小限制"
+		// "请求主体中文件字段" + fileName + "超出大小限制"
+		var limitError = fmt.Sprintf("File field %s in request body exceeds size limit", fileName)
 		err = uploadSizeLimit(buf, part, FilesMax, limitError)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusBadRequest)
@@ -310,9 +311,11 @@ func PostFileHandler(w http.ResponseWriter, r *http.Request) {
 		// 非逻辑内容，仅为测试使用
 		var chunkNumber = r.Header.Get("chunk-number")
 		if chunkNumber == "" {
-			http.Error(w, "文件"+fileName+"上传成功", http.StatusOK)
+			// "文件"+fileName+"上传成功"
+			http.Error(w, fmt.Sprintf("File %s uploaded successfully", fileName), http.StatusOK)
 		} else {
-			http.Error(w, "分片文件"+fileName+chunkNumber+"上传成功", http.StatusOK)
+			// "分片文件 %s %s 上传成功"
+			http.Error(w, fmt.Sprintf("Sliced file %s %s uploaded successfully.", fileName, chunkNumber), http.StatusOK)
 		}
 	}
 }
@@ -326,7 +329,7 @@ func uploadSizeLimit(buf *bytes.Buffer, part *multipart.Part, maxLimit int64, li
 	}
 	maxLimit -= n
 	if maxLimit < 0 {
-		return errors.New(limitError)
+		return fmt.Errorf(limitError)
 	}
 	return nil
 }

lib/services/services.go

@@ -138,20 +138,14 @@ func ExtGetUriPageLimitString(r *http.Request) string {
 }
 
 func IsJsonContentType(r *http.Request) bool {
-	if strings.Contains(r.Header.Get("Content-Type"), "application/json") {
-		return true
-	}
-	return false
+	hType := r.Header.Get("Content-Type")
+	return strings.Contains(hType, "application/json")
 }
 
 func IsValidOAuthUri(r *http.Request) bool {
 	vars := mux.Vars(r)
 	apiVer := vars["apiVersion"] // 获取Uri
-	if apiVer != "v1" {
-		return false
-	}
-
-	return true
+	return apiVer == "v1"
 }
 
 func IsVallidContentType(r *http.Request, checkFlag bool) bool {
@@ -386,7 +380,7 @@ func CheckCommonValidRequest(w http.ResponseWriter, r *http.Request) (string, er
 	// error processing ...
 	// 401-1 response
 	token, ret = oauth.IsCarriedToken(r)
-	if ret == false {
+	if !ret {
 		log.Error("accessToken is not carried")
 		ResponseUnauthorized401AccessTokenNotCarried(w)
 		return token, err