From 41491f8c207cd8c8728efe408282800f743bbbbb Mon Sep 17 00:00:00 2001
From: ChsBuffer <33744752+chsbuffer@users.noreply.github.com>
Date: Fri, 5 Mar 2021 16:07:21 +0800
Subject: [PATCH] Cut OnlyInstance

---
 Netch/Forms/MainForm.cs     | 17 --------
 Netch/Models/Setting.cs     |  5 ---
 Netch/Netch.cs              |  8 +---
 Netch/Utils/OnlyInstance.cs | 78 -------------------------------------
 4 files changed, 1 insertion(+), 107 deletions(-)
 delete mode 100644 Netch/Utils/OnlyInstance.cs

diff --git a/Netch/Forms/MainForm.cs b/Netch/Forms/MainForm.cs
index ee23dc8a..3ae4f9f6 100644
--- a/Netch/Forms/MainForm.cs
+++ b/Netch/Forms/MainForm.cs
@@ -85,8 +85,6 @@ namespace Netch.Forms
 
         private void MainForm_Load(object sender, EventArgs e)
         {
-            OnlyInstance.Called += OnCalled;
-
             // 计算 ComboBox绘制 目标宽度
             RecordSize();
 
@@ -1368,21 +1366,6 @@ namespace Netch.Forms
             Environment.Exit(Environment.ExitCode);
         }
 
-        private void OnCalled(object sender, OnlyInstance.Commands e)
-        {
-            switch (e)
-            {
-                case OnlyInstance.Commands.Show:
-                    NotifyIcon_MouseDoubleClick(null, null);
-                    break;
-                case OnlyInstance.Commands.Exit:
-                    Exit(true);
-                    break;
-                default:
-                    throw new ArgumentOutOfRangeException(nameof(e), e, null);
-            }
-        }
-
         #region FormClosingButton
 
         private bool _isFirstCloseWindow = true;
diff --git a/Netch/Models/Setting.cs b/Netch/Models/Setting.cs
index 5456fa9e..6c9e220c 100644
--- a/Netch/Models/Setting.cs
+++ b/Netch/Models/Setting.cs
@@ -272,11 +272,6 @@ namespace Netch.Models
         /// </summary>
         public TUNTAPConfig TUNTAP { get; set; } = new();
 
-        /// <summary>
-        ///     UDP Socket 占用端口
-        /// </summary>
-        public ushort UDPSocketPort { get; set; } = 18291;
-
         /// <summary>
         ///     是否打开软件时更新订阅
         /// </summary>
diff --git a/Netch/Netch.cs b/Netch/Netch.cs
index d4ab6020..6218a05e 100644
--- a/Netch/Netch.cs
+++ b/Netch/Netch.cs
@@ -42,8 +42,7 @@ namespace Netch
             // 检查是否已经运行
             if (!Global.Mutex.WaitOne(0, false))
             {
-                OnlyInstance.Send(OnlyInstance.Commands.Show);
-                Logging.Info("唤起单实例");
+                // TODO Active previous instance Form
 
                 // 退出进程
                 Environment.Exit(1);
@@ -72,11 +71,6 @@ namespace Netch
 
             Logging.Info($"版本: {UpdateChecker.Owner}/{UpdateChecker.Repo}@{UpdateChecker.Version}");
             Task.Run(() => { Logging.Info($"主程序 SHA256: {Utils.Utils.SHA256CheckSum(Global.NetchExecutable)}"); });
-            Task.Run(() =>
-            {
-                Logging.Info("启动单实例");
-                OnlyInstance.Server();
-            });
 
             // 绑定错误捕获
             Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
diff --git a/Netch/Utils/OnlyInstance.cs b/Netch/Utils/OnlyInstance.cs
deleted file mode 100644
index 09f4a6e1..00000000
--- a/Netch/Utils/OnlyInstance.cs
+++ /dev/null
@@ -1,78 +0,0 @@
-using System;
-using System.Net;
-using System.Net.Sockets;
-using System.Text;
-
-namespace Netch.Utils
-{
-    public static class OnlyInstance
-    {
-        public enum Commands
-        {
-            Show,
-            Exit
-        }
-
-        public static event EventHandler<Commands>? Called;
-
-        private static void OnCalled(Commands e)
-        {
-            Called?.Invoke(null, e);
-        }
-
-        public static async void Server()
-        {
-            try
-            {
-                const int tryLimit = 3;
-                var i = tryLimit;
-                while (i > 0)
-                    try
-                    {
-                        PortHelper.CheckPort(Global.Settings.UDPSocketPort, PortType.UDP);
-                        if (i != tryLimit)
-                            Configuration.Save();
-
-                        break;
-                    }
-                    catch
-                    {
-                        Global.Settings.UDPSocketPort = PortHelper.GetAvailablePort(PortType.UDP);
-                        i--;
-                    }
-
-                var data = new byte[1024];
-                var newsock = new UdpClient(new IPEndPoint(IPAddress.Loopback, Global.Settings.UDPSocketPort));
-
-                while (true)
-                {
-                    var result = await newsock.ReceiveAsync();
-                    data = result.Buffer;
-                    if (Enum.TryParse<Commands>(Encoding.ASCII.GetString(data, 0, data.Length), out var command))
-                        OnCalled(command);
-                }
-            }
-            catch (Exception e)
-            {
-                Logging.Error(e.ToString());
-            }
-        }
-
-        public static async void Send(Commands command)
-        {
-            try
-            {
-                using var udpClient = new UdpClient(new IPEndPoint(IPAddress.Loopback, Global.Settings.UDPSocketPort));
-                udpClient.Connect(IPAddress.Loopback, Global.Settings.UDPSocketPort);
-                var sendBytes = Encoding.ASCII.GetBytes(command.ToString());
-                await udpClient.SendAsync(sendBytes, sendBytes.Length);
-
-                udpClient.Close();
-            }
-            catch (Exception e)
-            {
-                Console.WriteLine(e.ToString());
-            }
-        }
-    }
-}
\ No newline at end of file