feat(control): advanced device ping route

control/main.go

@@ -2,9 +2,12 @@ package main
 
 import (
 	"log/slog"
+	"net"
 	"net/http"
+	"os/exec"
 	"plg-mudics/control/frontend"
 	"plg-mudics/shared"
+	"time"
 
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
@@ -21,9 +24,7 @@ func main() {
 
 	// Servers all API endpoints, e.g. our custom logic
 	apiGroup := e.Group("/api")
-	apiGroup.GET("/ping", func(ctx echo.Context) error {
+	apiGroup.GET("/ping", pingRoute)
-		return ctx.String(http.StatusOK, "pong")
-	})
 
 	port := "8080"
 
@@ -34,3 +35,29 @@ func main() {
 		slog.Error("Failed to start Echo Webserver", "error", err)
 	}
 }
+
+func pingRoute(ctx echo.Context) error {
+	ip := ctx.QueryParam("ip")
+	if ip == "" {
+		return ctx.JSON(http.StatusBadRequest, PingResponse{Error: "missing 'ip' query parameter"})
+	}
+
+	cmd := exec.Command("ping", "-c", "1", "-w", "1", ip)
+	result := shared.RunShellCommand(cmd)
+	if result.ExitCode != 0 {
+		return ctx.JSON(http.StatusOK, PingResponse{Status: "host_offline"})
+	}
+
+	conn, err := net.DialTimeout("tcp", ip+":1323", 1*time.Second)
+	if err != nil {
+		return ctx.JSON(http.StatusOK, PingResponse{Status: "app_offline"})
+	}
+	conn.Close()
+
+	return ctx.JSON(http.StatusOK, PingResponse{Status: "app_online"})
+}
+
+type PingResponse struct {
+	Status string `json:"status"`
+	Error  string `json:"error"`
+}

control/requests/bruno.json

@@ -0,0 +1,9 @@
+{
+  "version": "1",
+  "name": "PLG-MuDiCS Control",
+  "type": "collection",
+  "ignore": [
+    "node_modules",
+    ".git"
+  ]
+}

control/requests/ping.bru

@@ -0,0 +1,20 @@
+meta {
+  name: ping
+  type: http
+  seq: 1
+}
+
+get {
+  url: http://127.0.0.1:8080/api/ping?ip=127.0.0.1
+  body: none
+  auth: inherit
+}
+
+params:query {
+  ip: 127.0.0.1
+}
+
+settings {
+  encodeUrl: true
+  timeout: 0
+}