fix: 解决部分情况下打开文件中文乱码的问题 (#5425)

Refs #5374

Author: zhengkunwang223

backend/app/service/file.go

@@ -10,6 +10,7 @@ import (
 	"path/filepath"
 	"strings"
 	"time"
+	"unicode/utf8"
 
 	"github.com/1Panel-dev/1Panel/backend/app/dto/request"
 	"github.com/1Panel-dev/1Panel/backend/app/dto/response"
@@ -236,20 +237,20 @@ func (f *FileService) GetContent(op request.FileContentReq) (response.FileInfo,
 	}
 
 	content := []byte(info.Content)
-	var decodeName string
 	if len(content) > 1024 {
-		_, decodeName, _ = charset.DetermineEncoding(content[:1024], "")
-	} else {
-		_, decodeName, _ = charset.DetermineEncoding(content, "")
-	}
-	if decodeName == "windows-1252" {
-		reader := strings.NewReader(info.Content)
-		item := transform.NewReader(reader, simplifiedchinese.GBK.NewDecoder())
-		contents, err := io.ReadAll(item)
-		if err != nil {
-			return response.FileInfo{}, err
+		content = content[:1024]
+	}
+	if !utf8.Valid(content) {
+		_, decodeName, _ := charset.DetermineEncoding(content, "")
+		if decodeName == "windows-1252" {
+			reader := strings.NewReader(info.Content)
+			item := transform.NewReader(reader, simplifiedchinese.GBK.NewDecoder())
+			contents, err := io.ReadAll(item)
+			if err != nil {
+				return response.FileInfo{}, err
+			}
+			info.Content = string(contents)
 		}
-		info.Content = string(contents)
 	}
 	return response.FileInfo{FileInfo: *info}, nil
 }

frontend/src/lang/modules/en.ts

@@ -1729,7 +1729,8 @@ const message = {
         takeDown: 'TakeDown',
         allReadyInstalled: 'Installed',
         installHelper: 'Configuring image acceleration can solve the problem of image pull failure',
-        upgradeHelper: 'The abnormal application needs to be synchronized to the normal state first',
+        upgradeHelper:
+            'Abnormal applications need to be synchronized to normal status first. If the upgrade fails, please check the failure reason in the log audit-system log',
         installWarn:
             'Currently, if the port external access is not checked, it will not be able to access through the external network IP: port. Do you want to continue?',
         showIgnore: 'View ignore application',

frontend/src/lang/modules/tw.ts

@@ -1610,7 +1610,7 @@ const message = {
         takeDown: '已廢棄',
         allReadyInstalled: '已安裝',
         installHelper: '配置鏡像加速可以解決鏡像拉取失敗的問題',
-        upgradeHelper: '異常應用需要先同步到正常狀態',
+        upgradeHelper: '異常應用程式需要先同步到正常狀態，升級失敗請在日誌審計-系統日誌中查看失敗原因',
         installWarn: '當前未勾選端口外部訪問，將無法通過外網IP:端口訪問，是否繼續？ ',
         showIgnore: '查看忽略應用',
         cancelIgnore: '取消忽略',

frontend/src/lang/modules/zh.ts

@@ -1610,7 +1610,7 @@ const message = {
         takeDown: '已废弃',
         allReadyInstalled: '已安装',
         installHelper: '配置镜像加速可以解决镜像拉取失败的问题',
-        upgradeHelper: '异常应用需要先同步到正常状态',
+        upgradeHelper: '异常应用需要先同步到正常状态，升级失败请在日志审计-系统日志中查看失败原因',
         installWarn: '当前未勾选端口外部访问，将无法通过外网IP:端口访问，是否继续？',
         showIgnore: '查看忽略应用',
         cancelIgnore: '取消忽略',