引入2.1应做的全新UI变更

api.go

@@ -6,11 +6,13 @@ import (
 	"fmt"
 	"io"
 	"io/fs"
+	"net"
 	"net/http"
 	"os"
 	"strconv"
 	"strings"
 	"text/template"
+	"time"
 
 	"github.com/gin-gonic/gin"
 	"golang.org/x/crypto/bcrypt"
@@ -64,7 +66,7 @@ func SetupRouter() *gin.Engine {
 			auth.POST("/frpc/stop", stopFrpcHandler)
 			auth.GET("/frpc/status", getFrpcStatusHandler)
 			auth.GET("/frpc/log", getFrpcLogHandler)
-
+			auth.GET("/ping", pingHandler)
 			auth.POST("/import/toml", importTomlHandler)
 			auth.GET("/export/toml", ExportTomlHandler)
 
@@ -143,6 +145,36 @@ func registerHandler(c *gin.Context) {
 	})
 }
 
+// Ping 延迟检测
+func pingHandler(c *gin.Context) {
+	target := c.Query("target")
+	if target == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"code": 1, "msg": "缺少 target 参数"})
+		return
+	}
+
+	// 获取全局配置（获取服务端端口）
+	cfg, err := GetGlobalConfig()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"code": 2, "msg": "读取配置失败"})
+		return
+	}
+
+	port := cfg.ServerPort
+	address := net.JoinHostPort(target, strconv.Itoa(port))
+
+	start := time.Now()
+	conn, err := net.DialTimeout("tcp", address, 5*time.Second)
+	if err != nil {
+		c.JSON(http.StatusOK, gin.H{"code": 1, "msg": "ping 失败", "latency": -1})
+		return
+	}
+	conn.Close()
+
+	latency := time.Since(start).Milliseconds()
+	c.JSON(http.StatusOK, gin.H{"code": 0, "latency": latency})
+}
+
 func loginHandler(c *gin.Context) {
 	var req struct {
 		Username string `json:"username"`