From 6d7125511cbae4cce0df43d6b2e37ffca9bd3122 Mon Sep 17 00:00:00 2001
From: DucDangAnh <ducdanganhit@gmail.com>
Date: Mon, 13 Jul 2020 10:46:54 +0700
Subject: [PATCH] Util - Add IsValidIPAddress

---
 AIParkingApplication/AIParkingApplicationForm.cs |  4 +---
 AIParkingApplication/Util.cs                     | 11 +++++++++++
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/AIParkingApplication/AIParkingApplicationForm.cs b/AIParkingApplication/AIParkingApplicationForm.cs
index 95c21a7..4441735 100644
--- a/AIParkingApplication/AIParkingApplicationForm.cs
+++ b/AIParkingApplication/AIParkingApplicationForm.cs
@@ -27,7 +27,7 @@ namespace AIParkingApplication
             this.configOnWeb = configOnWeb;
 
             ReadAccessControlDeviceIPConfiguration();
-            if (string.IsNullOrEmpty(doorAccessControlDeviceIP))
+            if (string.IsNullOrEmpty(doorAccessControlDeviceIP) || !Util.IsValidIPAddress(doorAccessControlDeviceIP))
             {
                 MessageBox.Show("Kiểm tra lại cấu hình IP thiết bị mở cửa! (C3200)", "Lỗi", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 Application.Exit();
@@ -56,8 +56,6 @@ namespace AIParkingApplication
                 MessageBox.Show("Cấu hình API Plate Recognize lỗi!", "Cấu hình API Engine lỗi!", MessageBoxButtons.OK, MessageBoxIcon.Error);
                 return;
             }
-
-
         }
 
         private void InitAllLanes()
diff --git a/AIParkingApplication/Util.cs b/AIParkingApplication/Util.cs
index 53106f4..7b1e78d 100644
--- a/AIParkingApplication/Util.cs
+++ b/AIParkingApplication/Util.cs
@@ -3,6 +3,7 @@ using System;
 using System.Diagnostics;
 using System.Drawing;
 using System.IO;
+using System.Net;
 using System.Net.NetworkInformation;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
@@ -143,6 +144,16 @@ namespace AIParkingApplication
             }
         }
 
+        public static bool IsValidIPAddress(string ipAddress)
+        {
+            if (string.IsNullOrEmpty(ipAddress))
+            {
+                return false;
+            }
+            bool isValidIPAddress = IPAddress.TryParse(ipAddress, out IPAddress ip);
+            return isValidIPAddress;
+        }
+
         public static bool IsUrlValid(string url)
         {