Bump version to 1.9.0

- TUNTAP.UseCustomDNS true->false
- V2rayConfig.XrayCone false->true
- JsonIgnore Redirector.ChildProcessHandle

Netch.sln

@@ -1,10 +1,22 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 16
-VisualStudioVersion = 16.0.29009.5
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31423.177
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Netch", "Netch\Netch.csproj", "{4B041B91-5790-4571-8C58-C63FFE4BC9F8}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "UnitTest", "UnitTest\UnitTest.csproj", "{38240783-9AD2-4A01-84C1-1A3E5F05720F}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "AdditionalFiles", "AdditionalFiles", "{B7354F81-F79C-4C23-9067-C4DAE91B56F0}"
+	ProjectSection(SolutionItems) = preProject
+		.editorconfig = .editorconfig
+		.gitignore = .gitignore
+		common.props = common.props
+		global.json = global.json
+		LICENSE = LICENSE
+		README.md = README.md
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|x64 = Debug|x64
@@ -15,6 +27,10 @@ Global
 		{4B041B91-5790-4571-8C58-C63FFE4BC9F8}.Debug|x64.Build.0 = Debug|x64
 		{4B041B91-5790-4571-8C58-C63FFE4BC9F8}.Release|x64.ActiveCfg = Release|x64
 		{4B041B91-5790-4571-8C58-C63FFE4BC9F8}.Release|x64.Build.0 = Release|x64
+		{38240783-9AD2-4A01-84C1-1A3E5F05720F}.Debug|x64.ActiveCfg = Debug|x64
+		{38240783-9AD2-4A01-84C1-1A3E5F05720F}.Debug|x64.Build.0 = Debug|x64
+		{38240783-9AD2-4A01-84C1-1A3E5F05720F}.Release|x64.ActiveCfg = Release|x64
+		{38240783-9AD2-4A01-84C1-1A3E5F05720F}.Release|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Netch/Constants.cs

@@ -7,6 +7,7 @@
 
         public const string AioDnsRuleFile = "bin\\aiodns.conf";
         public const string NFDriver = "bin\\nfdriver.sys";
+        public const string NFCore = "bin\\core.bin";
         public const string STUNServersFile = "bin\\stun.txt";
 
         public const string LogFile = "logging\\application.log";
@@ -14,6 +15,8 @@
         public const string OutputTemplate = @"[{Timestamp:yyyy-MM-dd HH:mm:ss}][{Level}] {Message:lj}{NewLine}{Exception}";
         public const string EOF = "\r\n";
 
+        public const string DefaultGroup = "NONE";
+
         public static class Parameter
         {
             public const string Show = "-show";

Netch/Controllers/DNSController.cs

@@ -1,5 +1,6 @@
 using System;
 using System.IO;
+using System.Threading.Tasks;
 using Netch.Interfaces;
 using static Netch.Interops.AioDNS;
 
@@ -9,12 +10,12 @@ namespace Netch.Controllers
     {
         public string Name => "DNS Service";
 
-        public void Stop()
+        public async Task StopAsync()
         {
-            Free();
+            await FreeAsync();
         }
 
-        public void Start()
+        public async Task StartAsync()
         {
             MainController.PortCheck(Global.Settings.AioDNS.ListenPort, "DNS");
 
@@ -27,7 +28,7 @@ namespace Netch.Controllers
             Dial(NameList.TYPE_CDNS, $"{aioDnsConfig.ChinaDNS}");
             Dial(NameList.TYPE_ODNS, $"{aioDnsConfig.OtherDNS}");
 
-            if (!Init())
+            if (!await InitAsync())
                 throw new Exception("AioDNS start failed.");
         }
     }

Netch/Controllers/Guard.cs

@@ -4,8 +4,9 @@ using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text;
-using System.Threading;
 using System.Threading.Tasks;
+using Microsoft.VisualStudio.Threading;
+using Netch.Enums;
 using Netch.Models;
 using Netch.Utils;
 using Serilog;
@@ -67,11 +68,11 @@ namespace Netch.Controllers
             Instance.Dispose();
         }
 
-        protected void StartGuard(string argument, ProcessPriorityClass priority = ProcessPriorityClass.Normal)
+        protected async Task StartGuardAsync(string argument, ProcessPriorityClass priority = ProcessPriorityClass.Normal)
         {
             State = State.Starting;
 
-            _logFileStream = File.Open(LogPath, FileMode.Create, FileAccess.ReadWrite, FileShare.Read);
+            _logFileStream = File.Open(LogPath, FileMode.Create, FileAccess.Write, FileShare.Read);
             _logStreamWriter = new StreamWriter(_logFileStream) { AutoFlush = true };
 
             Instance.StartInfo.Arguments = argument;
@@ -82,8 +83,8 @@ namespace Netch.Controllers
 
             if (RedirectOutput)
             {
-                Task.Run(() => ReadOutput(Instance.StandardOutput));
-                Task.Run(() => ReadOutput(Instance.StandardError));
+                Task.Run(() => ReadOutput(Instance.StandardOutput)).Forget();
+                Task.Run(() => ReadOutput(Instance.StandardError)).Forget();
 
                 if (!StartedKeywords.Any())
                 {
@@ -95,20 +96,20 @@ namespace Netch.Controllers
                 // wait ReadOutput change State
                 for (var i = 0; i < 1000; i++)
                 {
-                    Thread.Sleep(10);
+                    await Task.Delay(50);
                     switch (State)
                     {
                         case State.Started:
                             OnStarted();
                             return;
                         case State.Stopped:
-                            StopGuard();
+                            await StopGuardAsync();
                             OnStartFailed();
                             throw new MessageException($"{Name} 控制器启动失败");
                     }
                 }
 
-                StopGuard();
+                await StopGuardAsync();
                 throw new MessageException($"{Name} 控制器启动超时");
             }
         }
@@ -136,12 +137,12 @@ namespace Netch.Controllers
             State = State.Stopped;
         }
 
-        public virtual void Stop()
+        public virtual async Task StopAsync()
         {
-            StopGuard();
+            await StopGuardAsync();
         }
 
-        protected void StopGuard()
+        protected async Task StopGuardAsync()
         {
             _logStreamWriter?.Close();
             _logFileStream?.Close();
@@ -151,7 +152,7 @@ namespace Netch.Controllers
                 if (Instance is { HasExited: false })
                 {
                     Instance.Kill();
-                    Instance.WaitForExit();
+                    await Instance.WaitForExitAsync();
                 }
             }
             catch (Win32Exception e)

Netch/Controllers/MainController.cs

@@ -1,8 +1,13 @@
 using System;
+using System.Diagnostics;
 using System.IO;
+using System.Threading;
 using System.Threading.Tasks;
+using Microsoft.VisualStudio.Threading;
+using Netch.Enums;
 using Netch.Interfaces;
 using Netch.Models;
+using Netch.Servers;
 using Netch.Utils;
 using Serilog;
 using Serilog.Events;
@@ -11,41 +16,75 @@ namespace Netch.Controllers
 {
     public static class MainController
     {
-        public static Mode? Mode { get; private set; }
+        public static Socks5Server? Socks5Server { get; private set; }
 
-        public static readonly NTTController NTTController = new();
+        public static Server? Server { get; private set; }
+
+        public static Mode? Mode { get; private set; }
 
         public static IServerController? ServerController { get; private set; }
 
         public static IModeController? ModeController { get; private set; }
 
+        public static ModeFeature ModeFeatures { get; private set; }
+
+        private static readonly AsyncSemaphore Lock = new(1);
+
         public static async Task StartAsync(Server server, Mode mode)
         {
-            Log.Information("启动主控制器: {Server} {Mode}", $"{server.Type}", $"[{(int) mode.Type}]{mode.Remark}");
+            using var _ = await Lock.EnterAsync();
 
-            if (DnsUtils.Lookup(server.Hostname) == null)
+            Log.Information("Start MainController: {Server} {Mode}", $"{server.Type}", $"[{(int)mode.Type}]{mode.Remark}");
+
+            if (await DnsUtils.LookupAsync(server.Hostname) == null)
                 throw new MessageException(i18N.Translate("Lookup Server hostname failed"));
 
+            // TODO Disable NAT Type Test setting
+            // cache STUN Server ip to prevent "Wrong STUN Server"
+            DnsUtils.LookupAsync(Global.Settings.STUN_Server).Forget();
+
+            Server = server;
             Mode = mode;
 
-            await Task.WhenAll(
-                Task.Run(NativeMethods.RefreshDNSCache),
-                Task.Run(Firewall.AddNetchFwRules)
-            );
+            await Task.WhenAll(Task.Run(NativeMethods.RefreshDNSCache), Task.Run(Firewall.AddNetchFwRules));
 
             if (Log.IsEnabled(LogEventLevel.Debug))
                 Task.Run(() =>
-                {
-                    // TODO log level setting
-                    Log.Debug("Running Processes: \n{Processes}", string.Join("\n", SystemInfo.Processes(false)));
-                }).Forget();
+                    {
+                        // TODO log level setting
+                        Log.Debug("Running Processes: \n{Processes}", string.Join("\n", SystemInfo.Processes(false)));
+                    })
+                    .Forget();
 
             try
             {
-                if (!ModeHelper.SkipServerController(server, mode))
-                    server = await Task.Run(() => StartServer(server));
+                (ModeController, ModeFeatures) = ModeHelper.GetModeControllerByType(mode.Type, out var modePort, out var portName);
 
-                await Task.Run(() => StartMode(server, mode));
+                if (modePort != null)
+                    TryReleaseTcpPort((ushort)modePort, portName);
+
+                if (Server is Socks5Server socks5 && (!socks5.Auth() || ModeFeatures.HasFlag(ModeFeature.SupportSocks5Auth)))
+                {
+                    Socks5Server = socks5;
+                }
+                else
+                {
+                    // Start Server Controller to get a local socks5 server
+                    Log.Debug("Server Information: {Data}", $"{server.Type} {server.MaskedData()}");
+
+                    ServerController = ServerHelper.GetUtilByTypeName(server.Type).GetController();
+                    Global.MainForm.StatusText(i18N.TranslateFormat("Starting {0}", ServerController.Name));
+
+                    TryReleaseTcpPort(ServerController.Socks5LocalPort(), "Socks5");
+                    Socks5Server = await ServerController.StartAsync(server);
+
+                    StatusPortInfoText.Socks5Port = Socks5Server.Port;
+                    StatusPortInfoText.UpdateShareLan();
+                }
+
+                // Start Mode Controller
+                Global.MainForm.StatusText(i18N.TranslateFormat("Starting {0}", ModeController.Name));
+                await ModeController.StartAsync(Socks5Server, mode);
             }
             catch (Exception e)
             {
@@ -59,54 +98,33 @@ namespace Netch.Controllers
                     case MessageException:
                         throw;
                     default:
-                        Log.Error(e, "主控制器启动未处理异常");
-                        throw new MessageException($"未处理异常\n{e.Message}");
+                        Log.Error(e, "Unhandled Exception When Start MainController");
+                        Utils.Utils.Open(Constants.LogFile);
+                        throw new MessageException($"{i18N.Translate("Unhandled Exception")}\n{e.Message}");
                 }
             }
         }
 
-        private static Server StartServer(Server server)
-        {
-            ServerController = ServerHelper.GetUtilByTypeName(server.Type).GetController();
-
-            TryReleaseTcpPort(ServerController.Socks5LocalPort(), "Socks5");
-
-            Global.MainForm.StatusText(i18N.TranslateFormat("Starting {0}", ServerController.Name));
-
-            Log.Debug($"{server.Type} {server.MaskedData()}");
-            var socks5 = ServerController.Start(server);
-
-            StatusPortInfoText.Socks5Port = socks5.Port;
-            StatusPortInfoText.UpdateShareLan();
-
-            return socks5;
-        }
-
-        private static void StartMode(Server server, Mode mode)
-        {
-            ModeController = ModeHelper.GetModeControllerByType(mode.Type, out var port, out var portName);
-
-            if (port != null)
-                TryReleaseTcpPort((ushort) port, portName);
-
-            Global.MainForm.StatusText(i18N.TranslateFormat("Starting {0}", ModeController.Name));
-
-            ModeController.Start(server, mode);
-        }
-
         public static async Task StopAsync()
         {
+            if (Lock.CurrentCount == 0)
+            {
+                (await Lock.EnterAsync()).Dispose();
+                return;
+            }
+
+            using var _ = await Lock.EnterAsync();
+
             if (ServerController == null && ModeController == null)
                 return;
 
+            Log.Information("Stop Main Controller");
             StatusPortInfoText.Reset();
 
-            Task.Run(() => NTTController.Stop()).Forget();
-
             var tasks = new[]
             {
-                Task.Run(() => ServerController?.Stop()),
-                Task.Run(() => ModeController?.Stop())
+                Task.Run(() => ServerController?.StopAsync()),
+                Task.Run(() => ModeController?.StopAsync())
             };
 
             try
@@ -115,11 +133,12 @@ namespace Netch.Controllers
             }
             catch (Exception e)
             {
-                Log.Error(e, "主控制器停止未处理异常");
+                Log.Error(e, "MainController Stop Error");
             }
 
-            ModeController = null;
             ServerController = null;
+            ModeController = null;
+            ModeFeatures = 0;
         }
 
         public static void PortCheck(ushort port, string portName, PortType portType = PortType.Both)
@@ -159,5 +178,30 @@ namespace Netch.Controllers
 
             PortCheck(port, portName, PortType.TCP);
         }
+
+        public static async Task<NatTypeTestResult> DiscoveryNatTypeAsync(CancellationToken ctx = default)
+        {
+            Debug.Assert(Socks5Server != null, nameof(Socks5Server) + " != null");
+            return await Socks5ServerTestUtils.DiscoveryNatTypeAsync(Socks5Server, ctx);
+        }
+
+        public static async Task<int?> HttpConnectAsync(CancellationToken ctx = default)
+        {
+            Debug.Assert(Socks5Server != null, nameof(Socks5Server) + " != null");
+            try
+            {
+                return await Socks5ServerTestUtils.HttpConnectAsync(Socks5Server, ctx);
+            }
+            catch (OperationCanceledException)
+            {
+                // ignored
+            }
+            catch (Exception e)
+            {
+                Log.Warning(e, "Unhandled Socks5ServerTestUtils.HttpConnectAsync Exception");
+            }
+
+            return null;
+        }
     }
 }

Netch/Controllers/NFController.cs

@@ -4,11 +4,11 @@ using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.ServiceProcess;
+using System.Threading.Tasks;
 using Netch.Interfaces;
 using Netch.Interops;
 using Netch.Models;
 using Netch.Servers;
-using Netch.Servers.Shadowsocks;
 using Netch.Utils;
 using Serilog;
 using static Netch.Interops.Redirector;
@@ -27,12 +27,13 @@ namespace Netch.Controllers
 
         public string Name => "Redirector";
 
-        public void Start(Server server, Mode mode)
+        public async Task StartAsync(Socks5Server server, Mode mode)
         {
             _server = server;
             _mode = mode;
             _rdrConfig = Global.Settings.Redirector;
             CheckDriver();
+            CheckCore();
 
             Dial(NameList.TYPE_FILTERLOOPBACK, "false");
             Dial(NameList.TYPE_FILTERICMP, "true");
@@ -43,7 +44,7 @@ namespace Netch.Controllers
             // Server
             Dial(NameList.TYPE_FILTERUDP, _rdrConfig.FilterProtocol.HasFlag(PortType.UDP).ToString().ToLower());
             Dial(NameList.TYPE_FILTERTCP, _rdrConfig.FilterProtocol.HasFlag(PortType.TCP).ToString().ToLower());
-            dial_Server(_rdrConfig.FilterProtocol, _server);
+            await DialServerAsync(_rdrConfig.FilterProtocol, _server);
 
             // Mode Rule
             dial_Name(_mode);
@@ -51,13 +52,13 @@ namespace Netch.Controllers
             // Features
             Dial(NameList.TYPE_DNSHOST, _rdrConfig.DNSHijack ? _rdrConfig.DNSHijackHost : "");
 
-            if (!Init())
+            if (!await InitAsync())
                 throw new MessageException("Redirector start failed.");
         }
 
-        public void Stop()
+        public async Task StopAsync()
         {
-            Free();
+            await FreeAsync();
         }
 
         #region CheckRule
@@ -102,32 +103,25 @@ namespace Netch.Controllers
 
         #endregion
 
-        private void dial_Server(PortType portType, in Server server)
+        private async Task DialServerAsync(PortType portType, Server server)
         {
             if (portType == PortType.Both)
             {
-                dial_Server(PortType.TCP, server);
-                dial_Server(PortType.UDP, server);
+                await DialServerAsync(PortType.TCP, server);
+                await DialServerAsync(PortType.UDP, server);
                 return;
             }
 
             var offset = portType == PortType.UDP ? UdpNameListOffset : 0;
 
-            if (server is Socks5 socks5)
+            if (server is Socks5Server socks5)
             {
                 Dial(NameList.TYPE_TCPTYPE + offset, "Socks5");
-                Dial(NameList.TYPE_TCPHOST + offset, $"{socks5.AutoResolveHostname()}:{socks5.Port}");
+                Dial(NameList.TYPE_TCPHOST + offset, $"{await socks5.AutoResolveHostnameAsync()}:{socks5.Port}");
                 Dial(NameList.TYPE_TCPUSER + offset, socks5.Username ?? string.Empty);
                 Dial(NameList.TYPE_TCPPASS + offset, socks5.Password ?? string.Empty);
                 Dial(NameList.TYPE_TCPMETH + offset, string.Empty);
             }
-            else if (server is Shadowsocks shadowsocks && !shadowsocks.HasPlugin() && _rdrConfig.RedirectorSS)
-            {
-                Dial(NameList.TYPE_TCPTYPE + offset, "Shadowsocks");
-                Dial(NameList.TYPE_TCPHOST + offset, $"{shadowsocks.AutoResolveHostname()}:{shadowsocks.Port}");
-                Dial(NameList.TYPE_TCPMETH + offset, shadowsocks.EncryptMethod);
-                Dial(NameList.TYPE_TCPPASS + offset, shadowsocks.Password);
-            }
             else
             {
                 Trace.Assert(false);
@@ -159,6 +153,12 @@ namespace Netch.Controllers
             Dial(NameList.TYPE_BYPNAME, "^" + Global.NetchDir.ToRegexString() + @"((?!NTT\.exe).)*$");
         }
 
+        private void CheckCore()
+        {
+            if (!File.Exists(Constants.NFCore))
+                throw new MessageException(i18N.Translate("\"Core.bin\" is missing. Please check your Antivirus software"));
+        }
+
         #region DriverUtil
 
         private static void CheckDriver()

Netch/Controllers/NTTController.cs

@@ -1,101 +0,0 @@
-using System;
-using System.IO;
-using System.Linq;
-using System.Threading.Tasks;
-using Netch.Interfaces;
-using Netch.Utils;
-using Serilog;
-
-namespace Netch.Controllers
-{
-    public class NTTController : Guard, IController
-    {
-        public NTTController() : base("NTT.exe")
-        {
-        }
-
-        public override string Name => "NTT";
-
-        /// <summary>
-        ///     启动 NatTypeTester
-        /// </summary>
-        /// <returns></returns>
-        public async Task<(string? result, string? localEnd, string? publicEnd)> Start()
-        {
-            string? localEnd = null, publicEnd = null, result = null, bindingTest = null;
-
-            try
-            {
-                Instance.StartInfo.Arguments = $" {Global.Settings.STUN_Server} {Global.Settings.STUN_Server_Port}";
-                Instance.Start();
-
-                var output = await Instance.StandardOutput.ReadToEndAsync();
-                var error = await Instance.StandardError.ReadToEndAsync();
-
-                try
-                {
-                    await File.WriteAllTextAsync(Path.Combine(Global.NetchDir, $"logging\\{Name}.log"), $"{output}\r\n{error}");
-                }
-                catch (Exception e)
-                {
-                    Log.Warning(e, "写入 {Name} 日志错误", Name);
-                }
-
-                if (output.IsNullOrWhiteSpace())
-                    if (!error.IsNullOrWhiteSpace())
-                    {
-                        var errorFirst = error.GetLines().First();
-                        return (errorFirst.SplitTrimEntries(':').Last(), null, null);
-                    }
-
-                foreach (var line in output.Split('\n'))
-                {
-                    var str = line.SplitTrimEntries(':');
-                    if (str.Length < 2)
-                        continue;
-
-                    var key = str[0];
-                    var value = str[1];
-                    switch (key)
-                    {
-                        case "Other address is":
-                        case "Nat mapping behavior":
-                        case "Nat filtering behavior":
-                            break;
-                        case "Binding test":
-                            bindingTest = value;
-                            break;
-                        case "Local address":
-                            localEnd = value;
-                            break;
-                        case "Mapped address":
-                            publicEnd = value;
-                            break;
-                        case "result":
-                            result = value;
-                            break;
-                    }
-                }
-
-                if (bindingTest == "Fail")
-                    result = "Fail";
-
-                return (result, localEnd, publicEnd);
-            }
-            catch (Exception e)
-            {
-                Log.Error(e, "{Name} 控制器启动异常", Name);
-                try
-                {
-                    Stop();
-                }
-                catch
-                {
-                    // ignored
-                }
-
-                return (null, null, null);
-            }
-        }
-    }
-}

Netch/Controllers/PcapController.cs

@@ -1,10 +1,12 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Text;
 using System.Threading;
 using System.Threading.Tasks;
+using Microsoft.VisualStudio.Threading;
 using Netch.Forms;
 using Netch.Interfaces;
 using Netch.Models;
@@ -29,7 +31,7 @@ namespace Netch.Controllers
 
         public override string Name => "pcap2socks";
 
-        public void Start(Server server, Mode mode)
+        public async Task StartAsync(Socks5Server server, Mode mode)
         {
             _server = server;
             _mode = mode;
@@ -37,19 +39,19 @@ namespace Netch.Controllers
             var outboundNetworkInterface = NetworkInterfaceUtils.GetBest();
 
             var argument = new StringBuilder($@"-i \Device\NPF_{outboundNetworkInterface.Id}");
-            if (_server is Socks5 socks5 && !socks5.Auth())
-                argument.Append($" --destination  {socks5.AutoResolveHostname()}:{socks5.Port}");
+            if (_server is Socks5Server socks5 && !socks5.Auth())
+                argument.Append($" --destination  {await socks5.AutoResolveHostnameAsync()}:{socks5.Port}");
             else
-                argument.Append($" --destination  127.0.0.1:{Global.Settings.Socks5LocalPort}");
+                Trace.Assert(false);
 
             argument.Append($" {_mode.GetRules().FirstOrDefault() ?? "-P n"}");
-            StartGuard(argument.ToString());
+            await StartGuardAsync(argument.ToString());
         }
 
-        public override void Stop()
+        public override async Task StopAsync()
         {
             Global.MainForm.Invoke(new Action(() => { _form.Close(); }));
-            StopGuard();
+            await StopGuardAsync();
         }
 
         ~PcapController()
@@ -76,10 +78,11 @@ namespace Netch.Controllers
             if (new FileInfo(LogPath).Length == 0)
             {
                 Task.Run(() =>
-                {
-                    Thread.Sleep(1000);
-                    Utils.Utils.Open("https://github.com/zhxie/pcap2socks#dependencies");
-                });
+                    {
+                        Thread.Sleep(1000);
+                        Utils.Utils.Open("https://github.com/zhxie/pcap2socks#dependencies");
+                    })
+                    .Forget();
 
                 throw new MessageException("Pleases install pcap2socks's dependency");
             }

Netch/Controllers/TUNController.cs

@@ -30,13 +30,13 @@ namespace Netch.Controllers
 
         public string Name => "tun2socks";
 
-        public void Start(Server server, Mode mode)
+        public async Task StartAsync(Socks5Server server, Mode mode)
         {
             _mode = mode;
             _tunConfig = Global.Settings.TUNTAP;
 
-            if (server is Socks5Bridge socks5Bridge)
-                _serverRemoteAddress = DnsUtils.Lookup(socks5Bridge.RemoteHostname);
+            if (server is Socks5LocalServer socks5Bridge)
+                _serverRemoteAddress = await DnsUtils.LookupAsync(socks5Bridge.RemoteHostname);
 
             if (_serverRemoteAddress != null && IPAddress.IsLoopback(_serverRemoteAddress))
                 _serverRemoteAddress = null;
@@ -56,11 +56,11 @@ namespace Netch.Controllers
             Dial(NameList.TYPE_UDPREST, "");
             Dial(NameList.TYPE_UDPTYPE, "Socks5");
 
-            if (server is Socks5 socks5)
+            if (server is Socks5Server socks5)
             {
-                Dial(NameList.TYPE_TCPHOST, $"{socks5.AutoResolveHostname()}:{socks5.Port}");
+                Dial(NameList.TYPE_TCPHOST, $"{await socks5.AutoResolveHostnameAsync()}:{socks5.Port}");
 
-                Dial(NameList.TYPE_UDPHOST, $"{socks5.AutoResolveHostname()}:{socks5.Port}");
+                Dial(NameList.TYPE_UDPHOST, $"{await socks5.AutoResolveHostnameAsync()}:{socks5.Port}");
 
                 if (socks5.Auth())
                 {
@@ -86,7 +86,7 @@ namespace Netch.Controllers
             }
             else
             {
-                _aioDnsController.Start();
+                await _aioDnsController.StartAsync();
                 Dial(NameList.TYPE_DNSADDR, $"127.0.0.1:{Global.Settings.AioDNS.ListenPort}");
             }
 
@@ -106,16 +106,16 @@ namespace Netch.Controllers
             SetupRouteTable();
         }
 
-        public void Stop()
+        public async Task StopAsync()
         {
             var tasks = new[]
             {
-                Task.Run(Free),
+                FreeAsync(),
                 Task.Run(ClearRouteTable),
-                Task.Run(_aioDnsController.Stop)
+                _aioDnsController.StopAsync()
             };
 
-            Task.WaitAll(tasks);
+            await Task.WhenAll(tasks);
         }
 
         private void CheckDriver()
@@ -147,7 +147,6 @@ namespace Netch.Controllers
         private void SetupRouteTable()
         {
             Global.MainForm.StatusText(i18N.Translate("Setup Route Table Rule"));
-            Log.Information("设置路由规则");
 
             // Server Address
             if (_serverRemoteAddress != null)

Netch/Controllers/UpdateChecker.cs

@@ -20,7 +20,7 @@ namespace Netch.Controllers
         public const string Name = @"Netch";
         public const string Copyright = @"Copyright © 2019 - 2021";
 
-        public const string AssemblyVersion = @"1.8.6";
+        public const string AssemblyVersion = @"1.9.0";
         private const string Suffix = @"";
 
         public static readonly string Version = $"{AssemblyVersion}{(string.IsNullOrEmpty(Suffix) ? "" : $"-{Suffix}")}";
@@ -37,14 +37,14 @@ namespace Netch.Controllers
 
         public static event EventHandler? NewVersionNotFound;
 
-        public static async Task Check(bool isPreRelease)
+        public static async Task CheckAsync(bool isPreRelease)
         {
             try
             {
                 var updater = new GitHubRelease(Owner, Repo);
                 var url = updater.AllReleaseUrl;
 
-                var json = await WebUtil.DownloadStringAsync(WebUtil.CreateRequest(url));
+                var (_, json) = await WebUtil.DownloadStringAsync(WebUtil.CreateRequest(url));
 
                 var releases = JsonSerializer.Deserialize<List<Release>>(json)!;
                 LatestRelease = GetLatestRelease(releases, isPreRelease);
@@ -52,12 +52,12 @@ namespace Netch.Controllers
                 if (VersionUtil.CompareVersion(LatestRelease.tag_name, Version) > 0)
                 {
                     Log.Information("发现新版本");
-                    NewVersionFound?.Invoke(null, new EventArgs());
+                    NewVersionFound?.Invoke(null, EventArgs.Empty);
                 }
                 else
                 {
                     Log.Information("目前是最新版本");
-                    NewVersionNotFound?.Invoke(null, new EventArgs());
+                    NewVersionNotFound?.Invoke(null, EventArgs.Empty);
                 }
             }
             catch (Exception e)
@@ -67,7 +67,7 @@ namespace Netch.Controllers
                 else
                     Log.Error(e, "获取新版本异常");
 
-                NewVersionFoundFailed?.Invoke(null, new EventArgs());
+                NewVersionFoundFailed?.Invoke(null, EventArgs.Empty);
             }
         }
 

Netch/Enums/LogLevel.cs

@@ -1,4 +1,4 @@
-namespace Netch.Models
+namespace Netch.Enums
 {
     public enum LogLevel
     {

Netch/Enums/ModeFeature.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace Netch.Enums
+{
+    [Flags]
+    public enum ModeFeature
+    {
+        SupportSocks5 = 0,
+        SupportIPv4 = 0,
+        SupportSocks5Auth = 0b_0001,
+        SupportIPv6 = 0b_0100
+    }
+}

Netch/Enums/State.cs

@@ -1,4 +1,4 @@
-namespace Netch.Models
+namespace Netch.Enums
 {
     /// <summary>
     ///     状态

Netch/Flags.cs

@@ -7,5 +7,7 @@ namespace Netch
         public static readonly bool IsWindows10Upper = Environment.OSVersion.Version.Major >= 10;
 
         public static bool AlwaysShowNewVersionFound { get; set; }
+
+        public static bool NoSupport { get; set; }
     }
 }

Netch/Forms/AboutForm.cs

@@ -1,7 +1,6 @@
 using Netch.Properties;
 using Netch.Utils;
 using System;
-using System.Diagnostics;
 using System.Windows.Forms;
 
 namespace Netch.Forms

Netch/Forms/LogForm.cs

@@ -1,8 +1,9 @@
 using System;
 using System.ComponentModel;
 using System.Windows.Forms;
-using Vanara.PInvoke;
-using static Vanara.PInvoke.User32;
+using Windows.Win32.Foundation;
+using Windows.Win32.UI.WindowsAndMessaging;
+using static Windows.Win32.PInvoke;
 
 namespace Netch.Forms
 {
@@ -34,21 +35,21 @@ namespace Netch.Forms
 
         private void Parent_Activated(object? sender, EventArgs? e)
         {
-            SetWindowPos(Handle,
-                HWND.HWND_TOPMOST,
+            SetWindowPos(new HWND(Handle),
+                new HWND(-1),
                 0,
                 0,
                 0,
                 0,
-                SetWindowPosFlags.SWP_NOACTIVATE | SetWindowPosFlags.SWP_NOMOVE | SetWindowPosFlags.SWP_NOSIZE | SetWindowPosFlags.SWP_SHOWWINDOW);
+                SET_WINDOW_POS_FLAGS.SWP_NOACTIVATE | SET_WINDOW_POS_FLAGS.SWP_NOMOVE | SET_WINDOW_POS_FLAGS.SWP_NOSIZE | SET_WINDOW_POS_FLAGS.SWP_SHOWWINDOW);
 
-            SetWindowPos(Handle,
-                HWND.HWND_NOTOPMOST,
+            SetWindowPos(new HWND(Handle),
+                new HWND(-2),
                 0,
                 0,
                 0,
                 0,
-                SetWindowPosFlags.SWP_NOACTIVATE | SetWindowPosFlags.SWP_NOMOVE | SetWindowPosFlags.SWP_NOSIZE | SetWindowPosFlags.SWP_SHOWWINDOW);
+                SET_WINDOW_POS_FLAGS.SWP_NOACTIVATE | SET_WINDOW_POS_FLAGS.SWP_NOMOVE | SET_WINDOW_POS_FLAGS.SWP_NOSIZE | SET_WINDOW_POS_FLAGS.SWP_SHOWWINDOW);
         }
 
         private void richTextBox1_TextChanged(object? sender, EventArgs? e)

Netch/Forms/MainForm.Designer.cs

@@ -73,6 +73,7 @@
             this.DownloadSpeedLabel = new System.Windows.Forms.ToolStripStatusLabel();
             this.UploadSpeedLabel = new System.Windows.Forms.ToolStripStatusLabel();
             this.blankToolStripStatusLabel = new System.Windows.Forms.ToolStripStatusLabel();
+            this.HttpStatusLabel = new System.Windows.Forms.ToolStripStatusLabel();
             this.NatTypeStatusLabel = new System.Windows.Forms.ToolStripStatusLabel();
             this.NatTypeStatusLightLabel = new System.Windows.Forms.ToolStripStatusLabel();
             this.ControlButton = new System.Windows.Forms.Button();
@@ -521,6 +522,7 @@
             this.DownloadSpeedLabel,
             this.UploadSpeedLabel,
             this.blankToolStripStatusLabel,
+            this.HttpStatusLabel,
             this.NatTypeStatusLabel,
             this.NatTypeStatusLightLabel});
             this.StatusStrip.Location = new System.Drawing.Point(0, 272);
@@ -560,9 +562,18 @@
             // blankToolStripStatusLabel
             // 
             this.blankToolStripStatusLabel.Name = "blankToolStripStatusLabel";
-            this.blankToolStripStatusLabel.Size = new System.Drawing.Size(494, 17);
+            this.blankToolStripStatusLabel.Size = new System.Drawing.Size(240, 17);
             this.blankToolStripStatusLabel.Spring = true;
             // 
+            // HttpStatusLabel
+            // 
+            this.HttpStatusLabel.Name = "HttpStatusLabel";
+            this.HttpStatusLabel.Size = new System.Drawing.Size(41, 17);
+            this.HttpStatusLabel.Text = "HTTP:";
+            this.HttpStatusLabel.TextAlign = System.Drawing.ContentAlignment.BottomLeft;
+            this.HttpStatusLabel.Visible = false;
+            this.HttpStatusLabel.Click += new System.EventHandler(this.TcpStatusLabel_Click);
+            // 
             // NatTypeStatusLabel
             // 
             this.NatTypeStatusLabel.Name = "NatTypeStatusLabel";
@@ -609,19 +620,19 @@
             this.ExitToolStripButton});
             this.NotifyMenu.Name = "NotifyMenu";
             this.NotifyMenu.ShowItemToolTips = false;
-            this.NotifyMenu.Size = new System.Drawing.Size(181, 70);
+            this.NotifyMenu.Size = new System.Drawing.Size(108, 48);
             // 
             // ShowMainFormToolStripButton
             // 
             this.ShowMainFormToolStripButton.Name = "ShowMainFormToolStripButton";
-            this.ShowMainFormToolStripButton.Size = new System.Drawing.Size(180, 22);
+            this.ShowMainFormToolStripButton.Size = new System.Drawing.Size(107, 22);
             this.ShowMainFormToolStripButton.Text = "Show";
             this.ShowMainFormToolStripButton.Click += new System.EventHandler(this.ShowMainFormToolStripButton_Click);
             // 
             // ExitToolStripButton
             // 
             this.ExitToolStripButton.Name = "ExitToolStripButton";
-            this.ExitToolStripButton.Size = new System.Drawing.Size(180, 22);
+            this.ExitToolStripButton.Size = new System.Drawing.Size(107, 22);
             this.ExitToolStripButton.Text = "Exit";
             this.ExitToolStripButton.Click += new System.EventHandler(this.ExitToolStripButton_Click);
             // 
@@ -792,5 +803,6 @@
         private System.Windows.Forms.FlowLayoutPanel flowLayoutPanel1;
         private System.Windows.Forms.ContainerControl ButtomControlContainerControl;
         private System.Windows.Forms.ToolStripMenuItem ShowHideConsoleToolStripMenuItem;
+        private System.Windows.Forms.ToolStripStatusLabel HttpStatusLabel;
     }
 }

Netch/Forms/MainForm.cs

@@ -9,6 +9,10 @@ using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Windows.Forms;
+using Windows.Win32;
+using Windows.Win32.Foundation;
+using Windows.Win32.UI.WindowsAndMessaging;
+using Microsoft.VisualStudio.Threading;
 using Microsoft.Win32;
 using Netch.Controllers;
 using Netch.Enums;
@@ -19,7 +23,6 @@ using Netch.Properties;
 using Netch.Services;
 using Netch.Utils;
 using Serilog;
-using Vanara.PInvoke;
 
 namespace Netch.Forms
 {
@@ -40,6 +43,9 @@ namespace Netch.Forms
 
             #region i18N Translations
 
+            if (Flags.NoSupport)
+                _mainFormText.Add(Name, new[] { "{0} ({1})", "Netch", "No Support" });
+
             _mainFormText.Add(UninstallServiceToolStripMenuItem.Name, new[] { "Uninstall {0}", "NF Service" });
 
             #endregion
@@ -50,7 +56,8 @@ namespace Netch.Forms
 
         private void AddAddServerToolStripMenuItems()
         {
-            foreach (var serversUtil in ServerHelper.ServerUtils.Where(i => !string.IsNullOrEmpty(i.FullName)))
+            foreach (var serversUtil in ServerHelper.ServerUtilDictionary.Values.OrderBy(i => i.Priority)
+                .Where(i => !string.IsNullOrEmpty(i.FullName)))
             {
                 var fullName = serversUtil.FullName;
                 var control = new ToolStripMenuItem
@@ -74,7 +81,7 @@ namespace Netch.Forms
 
             LoadServers();
             SelectLastServer();
-            ServerHelper.DelayTestHelper.UpdateInterval();
+            DelayTestHelper.UpdateTick(true);
 
             ModeHelper.InitWatcher();
             ModeHelper.Load();
@@ -84,29 +91,23 @@ namespace Netch.Forms
             // 加载翻译
             TranslateControls();
 
-            // 隐藏 NatTypeStatusLabel
-            NatTypeStatusText();
+            // 隐藏 ConnectivityStatusLabel
+            ConnectivityStatusVisible(false);
 
             // 加载快速配置
             LoadProfiles();
 
-            BeginInvoke(new Action(async () =>
-            {
-                // 检查更新
-                if (Global.Settings.CheckUpdateWhenOpened)
-                    await CheckUpdate();
-            }));
+            // 检查更新
+            if (Global.Settings.CheckUpdateWhenOpened)
+                CheckUpdateAsync().Forget();
 
-            BeginInvoke(new Action(async () =>
-            {
-                // 检查订阅更新
-                if (Global.Settings.UpdateServersWhenOpened)
-                    await UpdateServersFromSubscribe();
+            // 检查订阅更新
+            if (Global.Settings.UpdateServersWhenOpened)
+                UpdateServersFromSubscribeAsync().Forget();
 
-                // 打开软件时启动加速，产生开始按钮点击事件
-                if (Global.Settings.StartWhenOpened)
-                    ControlButton_Click(null, null);
-            }));
+            // 打开软件时启动加速，产生开始按钮点击事件
+            if (Global.Settings.StartWhenOpened)
+                ControlButton.PerformClick();
 
             Netch.SingleInstance.ListenForArgumentsFromSuccessiveInstances();
         }
@@ -272,10 +273,10 @@ namespace Netch.Forms
 
         private async void UpdateServersFromSubscribeLinksToolStripMenuItem_Click(object sender, EventArgs e)
         {
-            await UpdateServersFromSubscribe();
+            await UpdateServersFromSubscribeAsync();
         }
 
-        private async Task UpdateServersFromSubscribe()
+        private async Task UpdateServersFromSubscribeAsync()
         {
             void DisableItems(bool v)
             {
@@ -330,7 +331,7 @@ namespace Netch.Forms
             {
                 UpdateChecker.NewVersionNotFound += OnNewVersionNotFound;
                 UpdateChecker.NewVersionFoundFailed += OnNewVersionFoundFailed;
-                await CheckUpdate();
+                await CheckUpdateAsync();
             }
             finally
             {
@@ -391,9 +392,9 @@ namespace Netch.Forms
 
         private void ShowHideConsoleToolStripMenuItem_Click(object sender, EventArgs e)
         {
-            var windowStyles = (User32.WindowStyles)User32.GetWindowLong(Netch.ConsoleHwnd, User32.WindowLongFlags.GWL_STYLE);
-            var visible = windowStyles.HasFlag(User32.WindowStyles.WS_VISIBLE);
-            User32.ShowWindow(Netch.ConsoleHwnd, visible ? ShowWindowCommand.SW_HIDE : ShowWindowCommand.SW_SHOWNOACTIVATE);
+            var windowStyles = (WINDOW_STYLE)PInvoke.GetWindowLong(new HWND(Netch.ConsoleHwnd), WINDOW_LONG_PTR_INDEX.GWL_STYLE);
+            var visible = windowStyles.HasFlag(WINDOW_STYLE.WS_VISIBLE);
+            PInvoke.ShowWindow(Netch.ConsoleHwnd, visible ? SHOW_WINDOW_CMD.SW_HIDE : SHOW_WINDOW_CMD.SW_SHOWNOACTIVATE);
         }
 
         #endregion
@@ -464,7 +465,7 @@ namespace Netch.Forms
                 }
 
                 ModeHelper.SuspendWatcher = true;
-                await Stop();
+                await StopAsync();
                 await Configuration.SaveAsync();
 
                 // Update
@@ -500,7 +501,7 @@ namespace Netch.Forms
 
         private void fAQToolStripMenuItem_Click(object sender, EventArgs e)
         {
-            Utils.Utils.Open("https://netch.org/#/docs/zh-CN/faq");
+            Utils.Utils.Open("https://docs.netch.org");
         }
 
         #endregion
@@ -511,11 +512,11 @@ namespace Netch.Forms
         {
             if (!IsWaiting())
             {
-                await StopCore();
+                await StopCoreAsync();
                 return;
             }
 
-            await Configuration.SaveAsync();
+            Configuration.SaveAsync().Forget();
 
             // 服务器、模式 需选择
             if (ServerComboBox.SelectedItem is not Server server)
@@ -547,28 +548,32 @@ namespace Netch.Forms
             State = State.Started;
 
             Task.Run(Bandwidth.NetTraffic).Forget();
-            Task.Run(NatTest).Forget();
+            DiscoveryNatTypeAsync().Forget();
+            HttpConnectAsync().Forget();
 
             if (Global.Settings.MinimizeWhenStarted)
                 Minimize();
 
             // 自动检测延迟
-            Task.Run(() =>
+            async Task StartedPingAsync()
+            {
+                while (State == State.Started)
                 {
-                    while (State == State.Started)
-                        if (Global.Settings.StartedPingInterval >= 0)
-                        {
-                            server.Test();
-                            ServerComboBox.Refresh();
+                    if (Global.Settings.StartedPingInterval >= 0)
+                    {
+                        await server.PingAsync();
+                        ServerComboBox.Refresh();
 
-                            Thread.Sleep(Global.Settings.StartedPingInterval * 1000);
-                        }
-                        else
-                        {
-                            Thread.Sleep(5000);
-                        }
-                })
-                .Forget();
+                        await Task.Delay(Global.Settings.StartedPingInterval * 1000);
+                    }
+                    else
+                    {
+                        await Task.Delay(5000);
+                    }
+                }
+            }
+
+            StartedPingAsync().Forget();
         }
 
         #endregion
@@ -591,7 +596,7 @@ namespace Netch.Forms
             }
 
             if (oldSettings.DetectionTick != Global.Settings.DetectionTick)
-                ServerHelper.DelayTestHelper.UpdateInterval();
+                DelayTestHelper.UpdateTick(true);
 
             if (oldSettings.ProfileCount != Global.Settings.ProfileCount)
                 LoadProfiles();
@@ -636,9 +641,6 @@ namespace Netch.Forms
                 return;
             }
 
-            if (!server.Valid())
-                return;
-
             Hide();
             ServerHelper.GetUtilByTypeName(server.Type).Edit(server);
             LoadServers();
@@ -646,7 +648,7 @@ namespace Netch.Forms
             Show();
         }
 
-        private void SpeedPictureBox_Click(object sender, EventArgs e)
+        private async void SpeedPictureBox_Click(object sender, EventArgs e)
         {
             void Enable()
             {
@@ -660,19 +662,13 @@ namespace Netch.Forms
 
             if (!IsWaiting() || ModifierKeys == Keys.Control)
             {
-                (ServerComboBox.SelectedItem as Server)?.Test();
+                (ServerComboBox.SelectedItem as Server)?.PingAsync();
                 Enable();
             }
             else
             {
-                ServerHelper.DelayTestHelper.TestDelayFinished += OnTestDelayFinished;
-                Task.Run(ServerHelper.DelayTestHelper.TestAllDelay).Forget();
-
-                void OnTestDelayFinished(object? o1, EventArgs? e1)
-                {
-                    ServerHelper.DelayTestHelper.TestDelayFinished -= OnTestDelayFinished;
-                    Enable();
-                }
+                await DelayTestHelper.PerformTestAsync(true);
+                Enable();
             }
         }
 
@@ -685,9 +681,6 @@ namespace Netch.Forms
                 return;
             }
 
-            if (!server.Valid())
-                return;
-
             try
             {
                 //听说巨硬BUG经常会炸，所以Catch一下 :D
@@ -1001,12 +994,13 @@ namespace Netch.Forms
                         EditServerPictureBox.Enabled = DeleteModePictureBox.Enabled = DeleteServerPictureBox.Enabled = enabled;
 
                     // 启动需要禁用的控件
-                    UninstallServiceToolStripMenuItem.Enabled = UpdateServersFromSubscribeLinksToolStripMenuItem.Enabled = enabled;
+                    ServerToolStripMenuItem.Enabled = ModeToolStripMenuItem.Enabled =
+                        SubscribeToolStripMenuItem.Enabled = UninstallServiceToolStripMenuItem.Enabled = enabled;
                 }
 
                 _state = value;
 
-                ServerHelper.DelayTestHelper.Enabled = IsWaiting(_state);
+                DelayTestHelper.Enabled = IsWaiting(_state);
 
                 StatusText();
                 switch (value)
@@ -1036,7 +1030,7 @@ namespace Netch.Forms
 
                         ProfileGroupBox.Enabled = false;
                         BandwidthState(false);
-                        NatTypeStatusText();
+                        ConnectivityStatusVisible(false);
                         break;
                     case State.Stopped:
                         ControlButton.Enabled = true;
@@ -1053,29 +1047,28 @@ namespace Netch.Forms
             }
         }
 
-        public async Task Stop()
+        public async Task StopAsync()
         {
             if (IsWaiting())
                 return;
 
-            await StopCore();
+            await StopCoreAsync();
         }
 
-        private async Task StopCore()
+        private async Task StopCoreAsync()
         {
             State = State.Stopping;
+            _discoveryNatCts?.Cancel();
+            _httpConnectCts?.Cancel();
             await MainController.StopAsync();
             State = State.Stopped;
         }
 
-        private bool IsWaiting()
-        {
-            return State == State.Waiting || State == State.Stopped;
-        }
+        private bool IsWaiting() => IsWaiting(_state);
 
         private static bool IsWaiting(State state)
         {
-            return state == State.Waiting || state == State.Stopped;
+            return state is State.Waiting or State.Stopped;
         }
 
         /// <summary>
@@ -1091,9 +1084,10 @@ namespace Netch.Forms
             }
 
             text ??= i18N.Translate(StateExtension.GetStatusString(State));
-            StatusLabel.Text = i18N.Translate("Status", ": ") + text;
             if (_state == State.Started)
-                StatusLabel.Text += StatusPortInfoText.Value;
+                text += StatusPortInfoText.Value;
+
+            StatusLabel.Text = i18N.Translate("Status", ": ") + text;
         }
 
         public void BandwidthState(bool state)
@@ -1110,24 +1104,14 @@ namespace Netch.Forms
             UsedBandwidthLabel.Visible /*= UploadSpeedLabel.Visible*/ = DownloadSpeedLabel.Visible = state;
         }
 
-        public void NatTypeStatusText(string? text = null, string? country = null)
+        private void UpdateNatTypeStatusLabelText(string? text, string? country = null)
         {
-            if (InvokeRequired)
-            {
-                BeginInvoke(new Action<string, string>(NatTypeStatusText), text, country);
-                return;
-            }
-
-            if (State != State.Started)
-            {
-                NatTypeStatusLabel.Text = "";
-                NatTypeStatusLabel.Visible = NatTypeStatusLightLabel.Visible = false;
-                return;
-            }
-
             if (!string.IsNullOrEmpty(text))
             {
-                NatTypeStatusLabel.Text = $"NAT{i18N.Translate(": ")}{text} {(!country.IsNullOrEmpty() ? $"[{country}]" : "")}";
+                if (country == null)
+                    NatTypeStatusLabel.Text = $"NAT{i18N.Translate(": ")}{text} ";
+                else
+                    NatTypeStatusLabel.Text = $"NAT{i18N.Translate(": ")}{text} [{country}]";
 
                 UpdateNatTypeLight(int.TryParse(text, out var natType) ? natType : -1);
             }
@@ -1139,10 +1123,18 @@ namespace Netch.Forms
             NatTypeStatusLabel.Visible = true;
         }
 
+        private void ConnectivityStatusVisible(bool visible)
+        {
+            if (!visible)
+                HttpStatusLabel.Text = NatTypeStatusLabel.Text = "";
+
+            HttpStatusLabel.Visible = NatTypeStatusLabel.Visible = NatTypeStatusLightLabel.Visible = visible;
+        }
+
         /// <summary>
         ///     更新 NAT指示灯颜色
         /// </summary>
-        /// <param name="natType"></param>
+        /// <param name="natType">NAT Type. keep default(-1) to Hide Light</param>
         private void UpdateNatTypeLight(int natType = -1)
         {
             if (natType > 0 && natType < 5)
@@ -1165,46 +1157,81 @@ namespace Netch.Forms
             }
         }
 
-        private async void NatTypeStatusLabel_Click(object sender, EventArgs e)
+        private async void TcpStatusLabel_Click(object sender, EventArgs e)
         {
-            if (_state == State.Started && !Monitor.IsEntered(_natTestLock))
-                await NatTest();
+            await HttpConnectAsync();
         }
 
-        private bool _natTestLock = true;
-
-        /// <summary>
-        ///     测试 NAT
-        /// </summary>
-        private async Task NatTest()
+        private async void NatTypeStatusLabel_Click(object sender, EventArgs e)
         {
-            if (!MainController.Mode!.TestNatRequired())
-                return;
+            await DiscoveryNatTypeAsync();
+        }
 
-            if (!_natTestLock)
-                return;
+        private CancellationTokenSource? _discoveryNatCts;
 
-            _natTestLock = false;
+        private async Task DiscoveryNatTypeAsync()
+        {
+            NatTypeStatusLabel.Enabled = false;
+            UpdateNatTypeStatusLabelText("Testing NAT Type");
+
+            _discoveryNatCts = new CancellationTokenSource();
 
             try
             {
-                NatTypeStatusText(i18N.Translate("Testing NAT"));
+                var res = await MainController.DiscoveryNatTypeAsync(_discoveryNatCts.Token);
+                if (_discoveryNatCts.IsCancellationRequested)
+                    return;
 
-                var (result, _, publicEnd) = await MainController.NTTController.Start();
-
-                if (!string.IsNullOrEmpty(publicEnd))
+                if (!string.IsNullOrEmpty(res.PublicEnd))
                 {
-                    var country = Utils.Utils.GetCityCode(publicEnd!);
-                    NatTypeStatusText(result, country);
+                    var country = await Utils.Utils.GetCityCodeAsync(res.PublicEnd);
+
+                    UpdateNatTypeStatusLabelText(res.Result, country);
+                    if (int.TryParse(res.Result, out var natType))
+                        UpdateNatTypeLight(natType);
+                    else
+                        UpdateNatTypeLight();
                 }
                 else
                 {
-                    NatTypeStatusText(result ?? "Error");
+                    UpdateNatTypeStatusLabelText(res.Result ?? "Error");
+                    NatTypeStatusLightLabel.Visible = false;
                 }
             }
             finally
             {
-                _natTestLock = true;
+                _discoveryNatCts.Dispose();
+                _discoveryNatCts = null;
+                NatTypeStatusLabel.Enabled = true;
+            }
+        }
+
+        private CancellationTokenSource? _httpConnectCts;
+
+        private async Task HttpConnectAsync()
+        {
+            HttpStatusLabel.Enabled = false;
+
+            _httpConnectCts = new CancellationTokenSource();
+
+            try
+            {
+                var res = await MainController.HttpConnectAsync(_httpConnectCts.Token);
+                if (_httpConnectCts.IsCancellationRequested)
+                    return;
+
+                if (res != null)
+                    HttpStatusLabel.Text = $"HTTP{i18N.Translate(": ")}{res}ms";
+                else
+                    HttpStatusLabel.Text = $"HTTP{i18N.Translate(": ", "Timeout")}";
+
+                HttpStatusLabel.Visible = true;
+            }
+            finally
+            {
+                _httpConnectCts.Dispose();
+                _httpConnectCts = null;
+                HttpStatusLabel.Enabled = true;
             }
         }
 
@@ -1270,7 +1297,7 @@ namespace Netch.Forms
                 return;
             }
 
-            State = State.Terminating;
+            // State = State.Terminating;
             NotifyIcon.Visible = false;
             Hide();
 
@@ -1281,7 +1308,7 @@ namespace Netch.Forms
                 if (File.Exists(file))
                     File.Delete(file);
 
-            await Stop();
+            await StopAsync();
 
             Dispose();
             Environment.Exit(Environment.ExitCode);
@@ -1311,12 +1338,12 @@ namespace Netch.Forms
 
         #region Updater
 
-        private async Task CheckUpdate()
+        private async Task CheckUpdateAsync()
         {
             try
             {
                 UpdateChecker.NewVersionFound += OnUpdateCheckerOnNewVersionFound;
-                await UpdateChecker.Check(Global.Settings.CheckBetaUpdate);
+                await UpdateChecker.CheckAsync(Global.Settings.CheckBetaUpdate);
                 if (Flags.AlwaysShowNewVersionFound)
                     OnUpdateCheckerOnNewVersionFound(null!, null!);
             }

Netch/Forms/MessageBoxX.cs

@@ -1,7 +1,7 @@
-using Netch.Models;
-using Netch.Utils;
+using Netch.Utils;
 using System;
 using System.Windows.Forms;
+using Netch.Enums;
 
 namespace Netch.Forms
 {

Netch/Forms/ServerForm.cs

@@ -74,7 +74,7 @@ namespace Netch.Forms
             AddSaveButton();
             i18N.TranslateForm(this);
 
-            ConfigurationGroupBox.Enabled = string.IsNullOrEmpty(Server.Remark);
+            ConfigurationGroupBox.Enabled = !Server.IsInGroup();
 
             ConfigurationGroupBox.ResumeLayout(false);
             ConfigurationGroupBox.PerformLayout();

Netch/Forms/SettingForm.Designer.cs

@@ -39,7 +39,6 @@ namespace Netch.Forms
             this.HTTPPortLabel = new System.Windows.Forms.Label();
             this.HTTPPortTextBox = new System.Windows.Forms.TextBox();
             this.AllowDevicesCheckBox = new System.Windows.Forms.CheckBox();
-            this.ResolveServerHostnameCheckBox = new System.Windows.Forms.CheckBox();
             this.ServerPingTypeLabel = new System.Windows.Forms.Label();
             this.ICMPingRadioBtn = new System.Windows.Forms.RadioButton();
             this.TCPingRadioBtn = new System.Windows.Forms.RadioButton();
@@ -61,7 +60,6 @@ namespace Netch.Forms
             this.FilterICMPCheckBox = new System.Windows.Forms.CheckBox();
             this.ICMPDelayLabel = new System.Windows.Forms.Label();
             this.ICMPDelayTextBox = new System.Windows.Forms.TextBox();
-            this.RedirectorSSCheckBox = new System.Windows.Forms.CheckBox();
             this.ChildProcessHandleCheckBox = new System.Windows.Forms.CheckBox();
             this.WinTUNTabPage = new System.Windows.Forms.TabPage();
             this.WinTUNGroupBox = new System.Windows.Forms.GroupBox();
@@ -99,6 +97,7 @@ namespace Netch.Forms
             this.StopWhenExitedCheckBox = new System.Windows.Forms.CheckBox();
             this.StartWhenOpenedCheckBox = new System.Windows.Forms.CheckBox();
             this.MinimizeWhenStartedCheckBox = new System.Windows.Forms.CheckBox();
+            this.NoSupportDialogCheckBox = new System.Windows.Forms.CheckBox();
             this.RunAtStartupCheckBox = new System.Windows.Forms.CheckBox();
             this.CheckUpdateWhenOpenedCheckBox = new System.Windows.Forms.CheckBox();
             this.CheckBetaUpdateCheckBox = new System.Windows.Forms.CheckBox();
@@ -144,7 +143,6 @@ namespace Netch.Forms
             // 
             this.GeneralTabPage.BackColor = System.Drawing.SystemColors.ButtonFace;
             this.GeneralTabPage.Controls.Add(this.PortGroupBox);
-            this.GeneralTabPage.Controls.Add(this.ResolveServerHostnameCheckBox);
             this.GeneralTabPage.Controls.Add(this.ServerPingTypeLabel);
             this.GeneralTabPage.Controls.Add(this.ICMPingRadioBtn);
             this.GeneralTabPage.Controls.Add(this.TCPingRadioBtn);
@@ -224,20 +222,10 @@ namespace Netch.Forms
             this.AllowDevicesCheckBox.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
             this.AllowDevicesCheckBox.UseVisualStyleBackColor = true;
             // 
-            // ResolveServerHostnameCheckBox
-            // 
-            this.ResolveServerHostnameCheckBox.AutoSize = true;
-            this.ResolveServerHostnameCheckBox.Location = new System.Drawing.Point(267, 15);
-            this.ResolveServerHostnameCheckBox.Name = "ResolveServerHostnameCheckBox";
-            this.ResolveServerHostnameCheckBox.Size = new System.Drawing.Size(176, 21);
-            this.ResolveServerHostnameCheckBox.TabIndex = 1;
-            this.ResolveServerHostnameCheckBox.Text = "Resolve Server Hostname";
-            this.ResolveServerHostnameCheckBox.UseVisualStyleBackColor = true;
-            // 
             // ServerPingTypeLabel
             // 
             this.ServerPingTypeLabel.AutoSize = true;
-            this.ServerPingTypeLabel.Location = new System.Drawing.Point(267, 44);
+            this.ServerPingTypeLabel.Location = new System.Drawing.Point(267, 15);
             this.ServerPingTypeLabel.Name = "ServerPingTypeLabel";
             this.ServerPingTypeLabel.Size = new System.Drawing.Size(86, 17);
             this.ServerPingTypeLabel.TabIndex = 2;
@@ -246,7 +234,7 @@ namespace Netch.Forms
             // ICMPingRadioBtn
             // 
             this.ICMPingRadioBtn.AutoSize = true;
-            this.ICMPingRadioBtn.Location = new System.Drawing.Point(268, 63);
+            this.ICMPingRadioBtn.Location = new System.Drawing.Point(268, 34);
             this.ICMPingRadioBtn.Name = "ICMPingRadioBtn";
             this.ICMPingRadioBtn.Size = new System.Drawing.Size(75, 21);
             this.ICMPingRadioBtn.TabIndex = 3;
@@ -257,7 +245,7 @@ namespace Netch.Forms
             // TCPingRadioBtn
             // 
             this.TCPingRadioBtn.AutoSize = true;
-            this.TCPingRadioBtn.Location = new System.Drawing.Point(366, 64);
+            this.TCPingRadioBtn.Location = new System.Drawing.Point(366, 35);
             this.TCPingRadioBtn.Name = "TCPingRadioBtn";
             this.TCPingRadioBtn.Size = new System.Drawing.Size(66, 21);
             this.TCPingRadioBtn.TabIndex = 4;
@@ -361,7 +349,6 @@ namespace Netch.Forms
             this.NFTabPage.Controls.Add(this.FilterICMPCheckBox);
             this.NFTabPage.Controls.Add(this.ICMPDelayLabel);
             this.NFTabPage.Controls.Add(this.ICMPDelayTextBox);
-            this.NFTabPage.Controls.Add(this.RedirectorSSCheckBox);
             this.NFTabPage.Controls.Add(this.ChildProcessHandleCheckBox);
             this.NFTabPage.Location = new System.Drawing.Point(4, 29);
             this.NFTabPage.Name = "NFTabPage";
@@ -435,21 +422,11 @@ namespace Netch.Forms
             this.ICMPDelayTextBox.TabIndex = 6;
             this.ICMPDelayTextBox.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
             // 
-            // RedirectorSSCheckBox
-            // 
-            this.RedirectorSSCheckBox.AutoSize = true;
-            this.RedirectorSSCheckBox.Location = new System.Drawing.Point(15, 140);
-            this.RedirectorSSCheckBox.Name = "RedirectorSSCheckBox";
-            this.RedirectorSSCheckBox.Size = new System.Drawing.Size(265, 21);
-            this.RedirectorSSCheckBox.TabIndex = 7;
-            this.RedirectorSSCheckBox.Text = "Redirector built-in Shadowsocks support";
-            this.RedirectorSSCheckBox.UseVisualStyleBackColor = true;
-            // 
             // ChildProcessHandleCheckBox
             // 
             this.ChildProcessHandleCheckBox.AutoSize = true;
             this.ChildProcessHandleCheckBox.Enabled = false;
-            this.ChildProcessHandleCheckBox.Location = new System.Drawing.Point(15, 170);
+            this.ChildProcessHandleCheckBox.Location = new System.Drawing.Point(15, 140);
             this.ChildProcessHandleCheckBox.Name = "ChildProcessHandleCheckBox";
             this.ChildProcessHandleCheckBox.Size = new System.Drawing.Size(150, 21);
             this.ChildProcessHandleCheckBox.TabIndex = 8;
@@ -771,6 +748,7 @@ namespace Netch.Forms
             this.OtherTabPage.Controls.Add(this.StopWhenExitedCheckBox);
             this.OtherTabPage.Controls.Add(this.StartWhenOpenedCheckBox);
             this.OtherTabPage.Controls.Add(this.MinimizeWhenStartedCheckBox);
+            this.OtherTabPage.Controls.Add(this.NoSupportDialogCheckBox);
             this.OtherTabPage.Controls.Add(this.RunAtStartupCheckBox);
             this.OtherTabPage.Controls.Add(this.CheckUpdateWhenOpenedCheckBox);
             this.OtherTabPage.Controls.Add(this.CheckBetaUpdateCheckBox);
@@ -825,6 +803,16 @@ namespace Netch.Forms
             this.MinimizeWhenStartedCheckBox.Text = "Minimize when started";
             this.MinimizeWhenStartedCheckBox.UseVisualStyleBackColor = true;
             // 
+            // NoSupportDialogCheckBox
+            // 
+            this.NoSupportDialogCheckBox.AutoSize = true;
+            this.NoSupportDialogCheckBox.Location = new System.Drawing.Point(6, 72);
+            this.NoSupportDialogCheckBox.Name = "NoSupportDialogCheckBox";
+            this.NoSupportDialogCheckBox.Size = new System.Drawing.Size(174, 21);
+            this.NoSupportDialogCheckBox.TabIndex = 4;
+            this.NoSupportDialogCheckBox.Text = "Disable Support Warning";
+            this.NoSupportDialogCheckBox.UseVisualStyleBackColor = true;
+            // 
             // RunAtStartupCheckBox
             // 
             this.RunAtStartupCheckBox.AutoSize = true;
@@ -1012,7 +1000,6 @@ namespace Netch.Forms
         private System.Windows.Forms.TextBox HTTPPortTextBox;
         private System.Windows.Forms.Label Socks5PortLabel;
         private System.Windows.Forms.TextBox Socks5PortTextBox;
-        private System.Windows.Forms.CheckBox ResolveServerHostnameCheckBox;
         private System.Windows.Forms.GroupBox WinTUNGroupBox;
         private System.Windows.Forms.CheckBox ProxyDNSCheckBox;
         private System.Windows.Forms.CheckBox UseCustomDNSCheckBox;
@@ -1070,7 +1057,6 @@ namespace Netch.Forms
         private System.Windows.Forms.TextBox OtherDNSTextBox;
         private System.Windows.Forms.TextBox ChinaDNSTextBox;
         private System.Windows.Forms.TextBox DNSHijackHostTextBox;
-        private System.Windows.Forms.CheckBox RedirectorSSCheckBox;
         private System.Windows.Forms.Label ServerPingTypeLabel;
         private System.Windows.Forms.RadioButton TCPingRadioBtn;
         private System.Windows.Forms.RadioButton ICMPingRadioBtn;
@@ -1080,5 +1066,6 @@ namespace Netch.Forms
         private System.Windows.Forms.CheckBox ChildProcessHandleCheckBox;
         private System.Windows.Forms.TextBox ICMPDelayTextBox;
         private System.Windows.Forms.Label ICMPDelayLabel;
+        private System.Windows.Forms.CheckBox NoSupportDialogCheckBox;
     }
 }

Netch/Forms/SettingForm.cs

@@ -40,15 +40,13 @@ namespace Netch.Forms
                 c => Global.Settings.LocalAddress = AllowDevicesCheckBox.Checked ? "0.0.0.0" : "127.0.0.1",
                 Global.Settings.LocalAddress switch { "127.0.0.1" => false, "0.0.0.0" => true, _ => false });
 
-            BindCheckBox(ResolveServerHostnameCheckBox, c => Global.Settings.ResolveServerHostname = c, Global.Settings.ResolveServerHostname);
-
             BindRadioBox(ICMPingRadioBtn, _ => { }, !Global.Settings.ServerTCPing);
 
             BindRadioBox(TCPingRadioBtn, c => Global.Settings.ServerTCPing = c, Global.Settings.ServerTCPing);
 
             BindTextBox<int>(ProfileCountTextBox, i => i > -1, i => Global.Settings.ProfileCount = i, Global.Settings.ProfileCount);
             BindTextBox<int>(DetectionTickTextBox,
-                i => ServerHelper.DelayTestHelper.Range.InRange(i),
+                i => DelayTestHelper.Range.InRange(i),
                 i => Global.Settings.DetectionTick = i,
                 Global.Settings.DetectionTick);
 
@@ -112,8 +110,6 @@ namespace Netch.Forms
 
             BindTextBox(ICMPDelayTextBox, s => int.TryParse(s, out _), s => { }, Global.Settings.Redirector.ICMPDelay);
 
-            BindCheckBox(RedirectorSSCheckBox, s => Global.Settings.Redirector.RedirectorSS = s, Global.Settings.Redirector.RedirectorSS);
-
             BindCheckBox(ChildProcessHandleCheckBox,
                 s => Global.Settings.Redirector.ChildProcessHandle = s,
                 Global.Settings.Redirector.ChildProcessHandle);
@@ -205,6 +201,8 @@ namespace Netch.Forms
 
             BindCheckBox(UpdateServersWhenOpenedCheckBox, b => Global.Settings.UpdateServersWhenOpened = b, Global.Settings.UpdateServersWhenOpened);
 
+            BindCheckBox(NoSupportDialogCheckBox, b => Global.Settings.NoSupportDialog = b, Global.Settings.NoSupportDialog);
+
             #endregion
 
             #region AioDNS

Netch/Interfaces/IController.cs

@@ -1,9 +1,11 @@
-namespace Netch.Interfaces
+using System.Threading.Tasks;
+
+namespace Netch.Interfaces
 {
     public interface IController
     {
         public string Name { get; }
 
-        public void Stop();
+        public Task StopAsync();
     }
 }

Netch/Interfaces/IModeController.cs

@@ -1,9 +1,11 @@
+using System.Threading.Tasks;
 using Netch.Models;
+using Netch.Servers;
 
 namespace Netch.Interfaces
 {
     public interface IModeController : IController
     {
-        public void Start(Server server, Mode mode);
+        public Task StartAsync(Socks5Server server, Mode mode);
     }
 }

Netch/Interfaces/IServerController.cs

@@ -1,4 +1,5 @@
-using Netch.Models;
+using System.Threading.Tasks;
+using Netch.Models;
 using Netch.Servers;
 
 namespace Netch.Interfaces
@@ -9,7 +10,7 @@ namespace Netch.Interfaces
 
         public string? LocalAddress { get; set; }
 
-        public Socks5 Start(in Server s);
+        public Task<Socks5LocalServer> StartAsync(Server s);
     }
 
     public static class ServerControllerExtension

Netch/Interops/AioDNS.cs

@@ -1,5 +1,6 @@
 using System.Runtime.InteropServices;
 using System.Text;
+using System.Threading.Tasks;
 using Serilog;
 
 namespace Netch.Interops
@@ -10,10 +11,20 @@ namespace Netch.Interops
 
         public static bool Dial(NameList name, string value)
         {
-            Log.Debug($"[aiodns] Dial {name}: {value}");
+            Log.Verbose($"[aiodns] Dial {name}: {value}");
             return aiodns_dial(name, Encoding.UTF8.GetBytes(value));
         }
 
+        public static async Task<bool> InitAsync()
+        {
+            return await Task.Run(Init).ConfigureAwait(false);
+        }
+        
+        public static async Task FreeAsync()
+        {
+            await Task.Run(Free).ConfigureAwait(false);
+        }
+
         [DllImport(aiodns_bin, CallingConvention = CallingConvention.Cdecl)]
         private static extern bool aiodns_dial(NameList name, byte[] value);
 

Netch/Interops/Redirector.cs

@@ -1,4 +1,5 @@
 using System.Runtime.InteropServices;
+using System.Threading.Tasks;
 using Serilog;
 
 namespace Netch.Interops
@@ -43,18 +44,18 @@ namespace Netch.Interops
 
         public static bool Dial(NameList name, string value)
         {
-            Log.Debug($"[Redirector] Dial {name}: {value}");
+            Log.Verbose($"[Redirector] Dial {name}: {value}");
             return aio_dial(name, value);
         }
 
-        public static bool Init()
+        public static async Task<bool> InitAsync()
         {
-            return aio_init();
+            return await Task.Run(aio_init).ConfigureAwait(false);
         }
 
-        public static bool Free()
+        public static async Task<bool> FreeAsync()
         {
-            return aio_free();
+            return await Task.Run(aio_free).ConfigureAwait(false);
         }
 
         public const int UdpNameListOffset = (int)NameList.TYPE_UDPLISN - (int)NameList.TYPE_TCPLISN;

Netch/Interops/tun2socks.cs

@@ -1,5 +1,6 @@
 using System.Runtime.InteropServices;
 using System.Text;
+using System.Threading.Tasks;
 using Serilog;
 
 namespace Netch.Interops
@@ -36,19 +37,19 @@ namespace Netch.Interops
 
         public static bool Dial(NameList name, string value)
         {
-            Log.Debug( $"[tun2socks] Dial {name}: {value}");
+            Log.Verbose( $"[tun2socks] Dial {name}: {value}");
             return tun_dial(name, Encoding.UTF8.GetBytes(value));
         }
 
         public static bool Init()
         {
-            Log.Debug("[tun2socks] init");
+            Log.Verbose("[tun2socks] init");
             return tun_init();
         }
 
-        public static bool Free()
+        public static async Task<bool> FreeAsync()
         {
-            return tun_free();
+            return await Task.Run(tun_free).ConfigureAwait(false);
         }
 
         private const string tun2socks_bin = "tun2socks.bin";

Netch/Models/Arguments.cs

@@ -0,0 +1,49 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Netch.Utils;
+
+namespace Netch.Models
+{
+    public static class Arguments
+    {
+        public static string Format(IEnumerable<object?> a)
+        {
+            var arguments = a.ToList();
+            if (arguments.Count % 2 != 0)
+                throw new FormatException("missing last argument value");
+
+            var tokens = new List<string>();
+
+            for (var i = 0; i < arguments.Count; i += 2)
+            {
+                var keyObj = arguments[i];
+                var valueObj = arguments[i + 1];
+
+                if (keyObj is not string key)
+                    throw new FormatException($"argument key at array index {i} is not string");
+
+                switch (valueObj)
+                {
+                    case SpecialArgument.Flag:
+                        tokens.Add(key);
+                        break;
+                    case null:
+                    case string value when value.IsNullOrWhiteSpace():
+                        continue;
+                    default:
+                        tokens.Add(key);
+                        tokens.Add(valueObj.ToString()!);
+                        break;
+                }
+            }
+
+            return string.Join(' ', tokens);
+        }
+    }
+
+    public enum SpecialArgument
+    {
+        Flag
+    }
+}

Netch/Models/GitHubRelease/VersionUtil.cs

@@ -1,6 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
+using System.Collections.Generic;
 
 namespace Netch.Models.GitHubRelease
 {

Netch/Models/Mode.cs

@@ -120,14 +120,4 @@ namespace Netch.Models
             return $"[{(int)Type + 1}] {i18N.Translate(Remark)}";
         }
     }
-
-    public static class ModeExtension
-    {
-        /// 是否会转发 UDP
-        public static bool TestNatRequired(this Mode mode)
-        {
-            return mode.Type is ModeType.Process && Global.Settings.Redirector.FilterProtocol.HasFlag(PortType.UDP) ||
-                   mode.Type is ModeType.BypassRuleIPs;
-        }
-    }
 }

Netch/Models/NatTypeTestResult.cs

@@ -0,0 +1,9 @@
+namespace Netch.Models
+{
+    public struct NatTypeTestResult
+    {
+        public string? Result;
+        public string? LocalEnd;
+        public string? PublicEnd;
+    }
+}

Netch/Models/NetRoute.cs

@@ -1,6 +1,6 @@
 using System;
 using System.Net;
-using Vanara.PInvoke;
+using Windows.Win32;
 
 namespace Netch.Models
 {
@@ -18,10 +18,10 @@ namespace Netch.Models
 
         public static NetRoute GetBestRouteTemplate()
         {
-            if (IpHlpApi.GetBestRoute(BitConverter.ToUInt32(IPAddress.Parse("114.114.114.114").GetAddressBytes(), 0), 0, out var route) != 0)
+            if (PInvoke.GetBestRoute(BitConverter.ToUInt32(IPAddress.Parse("114.114.114.114").GetAddressBytes(), 0), 0, out var route) != 0)
                 throw new MessageException("GetBestRoute 搜索失败");
 
-            var gateway = new IPAddress(route.dwForwardNextHop.S_un_b);
+            var gateway = new IPAddress(route.dwForwardNextHop);
             return TemplateBuilder(gateway.ToString(), (int)route.dwForwardIfIndex);
         }
 

Netch/Models/ParameterBase.cs

@@ -1,120 +0,0 @@
-using System;
-using System.Linq;
-using System.Reflection;
-
-namespace Netch.Models
-{
-    public abstract class ParameterBase
-    {
-        //     null value par
-
-        private readonly bool _full;
-
-        protected readonly string ParametersSeparate = " ";
-        protected readonly string Separate = " ";
-        protected readonly string VerbPrefix = "-";
-        protected readonly string FullPrefix = "--";
-
-        protected ParameterBase()
-        {
-            _full = !GetType().IsDefined(typeof(VerbAttribute));
-        }
-
-        public override string ToString()
-        {
-            var parameters = GetType().GetProperties().Select(PropToParameter).Where(s => s != null).Cast<string>();
-            return string.Join(ParametersSeparate, parameters).Trim();
-        }
-
-        private string? PropToParameter(PropertyInfo p)
-        {
-            // prefix
-            bool full;
-            if (p.IsDefined(typeof(VerbAttribute)))
-                full = false;
-            else if (p.IsDefined(typeof(FullAttribute)))
-                full = true;
-            else
-                full = _full;
-
-            var prefix = full ? FullPrefix : VerbPrefix;
-            // key
-            var key = p.GetCustomAttribute<RealNameAttribute>()?.Name ?? p.Name;
-
-            // build
-            var value = p.GetValue(this);
-            switch (value)
-            {
-                case bool b:
-                    return b ? $"{prefix}{key}" : null;
-                default:
-                    if (string.IsNullOrWhiteSpace(value?.ToString()))
-                        return p.IsDefined(typeof(OptionalAttribute)) ? null : throw new RequiredArgumentValueInvalidException(p.Name, this, null);
-
-                    if (p.IsDefined(typeof(QuoteAttribute)))
-                        value = $"\"{value}\"";
-
-                    return $"{prefix}{key}{Separate}{value}";
-            }
-        }
-    }
-
-    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Class)]
-    public class VerbAttribute : Attribute
-    {
-        // Don't use verb and full both on one class or property
-        // if you did, will take verb
-    }
-
-    [AttributeUsage(AttributeTargets.Property | AttributeTargets.Class)]
-    public class FullAttribute : Attribute
-    {
-    }
-
-    [AttributeUsage(AttributeTargets.Property)]
-    public class OptionalAttribute : Attribute
-    {
-    }
-
-    [AttributeUsage(AttributeTargets.Property)]
-    public class QuoteAttribute : Attribute
-    {
-    }
-
-    [AttributeUsage(AttributeTargets.Property)]
-    public class RealNameAttribute : Attribute
-    {
-        public string Name { get; }
-
-        public RealNameAttribute(string name)
-        {
-            Name = name;
-        }
-    }
-
-    [Serializable]
-    public class RequiredArgumentValueInvalidException : Exception
-    {
-        public string? ArgumentName { get; }
-
-        public object? ArgumentObject { get; }
-
-        private readonly string? _message;
-
-        private const string DefaultMessage = "{0}'s Argument \"{1}\" value invalid. A required argument's value can't be null or empty.";
-
-        public override string Message => _message ?? string.Format(DefaultMessage, ArgumentObject!.GetType(), ArgumentName);
-
-        public RequiredArgumentValueInvalidException()
-        {
-            _message = "Some Argument value invalid. A required argument value's can't be null or empty.";
-        }
-
-        public RequiredArgumentValueInvalidException(string argumentName, object argumentObject, string? message)
-        {
-            ArgumentName = argumentName;
-            ArgumentObject = argumentObject;
-            _message = message;
-        }
-    }
-}

Netch/Models/Server.cs

@@ -1,5 +1,5 @@
 using System;
-using System.Collections.Generic;
+using System.Net.Sockets;
 using System.Text.Json.Serialization;
 using System.Threading.Tasks;
 using Netch.Utils;
@@ -17,7 +17,7 @@ namespace Netch.Models
         /// <summary>
         ///     组
         /// </summary>
-        public string Group { get; set; } = "None";
+        public string Group { get; set; } = Constants.DefaultGroup;
 
         /// <summary>
         ///     地址
@@ -42,12 +42,7 @@ namespace Netch.Models
         /// <summary>
         ///     代理类型
         /// </summary>
-        public virtual string Type { get; } = string.Empty;
-
-        [JsonExtensionData]
-        // ReSharper disable once CollectionNeverUpdated.Global
-        public Dictionary<string, object> ExtensionData { get; set; } = new();
-
+        public abstract string Type { get; }
 
         public object Clone()
         {
@@ -62,56 +57,48 @@ namespace Netch.Models
         {
             var remark = string.IsNullOrWhiteSpace(Remark) ? $"{Hostname}:{Port}" : Remark;
 
-            if (Group.Equals("None") || Group.Equals(""))
-                Group = "NONE";
-
-            string shortName;
-            if (Type == string.Empty)
-            {
-                shortName = "WTF";
-            }
-            else
-            {
-                shortName = ServerHelper.GetUtilByTypeName(Type).ShortName;
-            }
+            var shortName = ServerHelper.GetUtilByTypeName(Type).ShortName;
 
             return $"[{shortName}][{Group}] {remark}";
         }
 
         public abstract string MaskedData();
+
         /// <summary>
         ///     测试延迟
         /// </summary>
         /// <returns>延迟</returns>
-        public int Test()
+        public async Task<int> PingAsync()
         {
             try
             {
-                var destination = DnsUtils.Lookup(Hostname);
+                var destination = await DnsUtils.LookupAsync(Hostname);
                 if (destination == null)
                     return Delay = -2;
 
                 var list = new Task<int>[3];
                 for (var i = 0; i < 3; i++)
-                    list[i] = Task.Run(async () =>
+                {
+                    async Task<int> PingCoreAsync()
                     {
                         try
                         {
                             return Global.Settings.ServerTCPing
                                 ? await Utils.Utils.TCPingAsync(destination, Port)
-                                : Utils.Utils.ICMPing(destination, Port);
+                                : await Utils.Utils.ICMPingAsync(destination);
                         }
                         catch (Exception)
                         {
                             return -4;
                         }
-                    });
+                    }
 
-                Task.WaitAll(list[0], list[1], list[2]);
+                    list[i] = PingCoreAsync();
+                }
 
-                var min = Math.Min(list[0].Result, list[1].Result);
-                min = Math.Min(min, list[2].Result);
-                return Delay = min;
+                var resTask = await Task.WhenAny(list[0], list[1], list[2]);
+
+                return Delay = await resTask;
             }
             catch (Exception)
             {
@@ -122,22 +109,15 @@ namespace Netch.Models
 
     public static class ServerExtension
     {
-        public static string AutoResolveHostname(this Server server)
+        public static async Task<string> AutoResolveHostnameAsync(this Server server, AddressFamily inet = AddressFamily.Unspecified)
         {
-            return Global.Settings.ResolveServerHostname ? DnsUtils.Lookup(server.Hostname)!.ToString() : server.Hostname;
+            // ! MainController cached
+            return (await DnsUtils.LookupAsync(server.Hostname, inet))!.ToString();
         }
 
-        public static bool Valid(this Server server)
+        public static bool IsInGroup(this Server server)
         {
-            try
-            {
-                ServerHelper.GetTypeByTypeName(server.Type);
-                return true;
-            }
-            catch
-            {
-                return false;
-            }
+            return server.Group is not Constants.DefaultGroup;
         }
     }
 }

Netch/Models/Setting.cs

@@ -1,6 +1,6 @@
-using Netch.Utils;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Text.Json.Serialization;
+using Netch.Utils;
 
 namespace Netch.Models
 {
@@ -37,7 +37,7 @@ namespace Netch.Models
         /// <summary>
         ///     使用自定义 DNS 设置
         /// </summary>
-        public bool UseCustomDNS { get; set; } = true;
+        public bool UseCustomDNS { get; set; } = false;
 
         /// <summary>
         ///     全局绕过 IP 列表
@@ -72,7 +72,7 @@ namespace Netch.Models
 
         public bool V2rayNShareLink { get; set; } = true;
 
-        public bool XrayCone { get; set; } = false;
+        public bool XrayCone { get; set; } = true;
     }
 
     public class AioDNSConfig
@@ -106,14 +106,10 @@ namespace Netch.Models
 
         public bool FilterICMP { get; set; } = false;
 
-        /// <summary>
-        ///     是否使用RDR内置SS
-        /// </summary>
-        public bool RedirectorSS { get; set; } = false;
-
         /// <summary>
         ///     是否代理子进程
         /// </summary>
+        [JsonIgnore]
         public bool ChildProcessHandle { get; set; } = false;
     }
 
@@ -196,11 +192,6 @@ namespace Netch.Models
         /// </summary>
         public int RequestTimeout { get; set; } = 10000;
 
-        /// <summary>
-        ///     解析服务器主机名
-        /// </summary>
-        public bool ResolveServerHostname { get; set; } = true;
-
         /// <summary>
         ///     是否开机启动软件
         /// </summary>
@@ -263,6 +254,8 @@ namespace Netch.Models
 
         public V2rayConfig V2RayConfig { get; set; } = new();
 
+        public bool NoSupportDialog { get; set; } = false;
+
         public Setting Clone()
         {
             return (Setting)MemberwiseClone();

Netch/NativeMethods.txt

@@ -0,0 +1,21 @@
+// IpHlpApi.dll
+GetBestRoute
+GetExtendedTcpTable
+MIB_TCPTABLE_OWNER_PID
+ADDRESS_FAMILY
+
+// User32.dll
+SetWindowPos
+GetWindowLong
+ShowWindow
+WINDOW_STYLE
+
+// Kernel32.dll
+AllocConsole
+GetConsoleWindow
+
+// Ws2_32.dll
+ntohs
+
+// Windows.h
+// WIN32_ERROR

Netch/Netch.cs

@@ -1,25 +1,35 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.IO;
 using System.Linq;
+using System.Reflection;
+using System.Runtime.Versioning;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Windows.Forms;
+using Windows.Win32;
+using Windows.Win32.Foundation;
+using Microsoft.VisualStudio.Threading;
 using Netch.Controllers;
+using Netch.Enums;
 using Netch.Forms;
 using Netch.Services;
 using Netch.Utils;
 using Serilog;
 using Serilog.Events;
-using Vanara.PInvoke;
+using SingleInstance;
+#if RELEASE
+using Windows.Win32.UI.WindowsAndMessaging;
+#endif
 
 namespace Netch
 {
     public static class Netch
     {
-        public static readonly SingleInstance.SingleInstanceService SingleInstance = new($"Global\\{nameof(Netch)}");
+        public static readonly SingleInstanceService SingleInstance = new($"Global\\{nameof(Netch)}");
 
-        public static HWND ConsoleHwnd { get; private set; }
+        internal static HWND ConsoleHwnd { get; private set; }
 
         /// <summary>
         ///     应用程序的主入口点
@@ -38,13 +48,15 @@ namespace Netch
             Updater.CleanOld(Global.NetchDir);
 
             // 预创建目录
-            var directories = new[] {"mode\\Custom", "data", "i18n", "logging"};
+            var directories = new[] { "mode\\Custom", "data", "i18n", "logging" };
             foreach (var item in directories)
                 if (!Directory.Exists(item))
                     Directory.CreateDirectory(item);
 
             // 加载配置
+#pragma warning disable VSTHRD002
             Configuration.LoadAsync().Wait();
+#pragma warning restore VSTHRD002
 
             if (!SingleInstance.IsFirstInstance)
             {
@@ -80,7 +92,9 @@ namespace Netch
                 Environment.Exit(2);
             }
 
-            Task.Run(LogEnvironment);
+            Task.Run(LogEnvironment).Forget();
+            CheckClr();
+            CheckOS();
 
             // 绑定错误捕获
             Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException);
@@ -92,22 +106,54 @@ namespace Netch
             Application.SetCompatibleTextRenderingDefault(false);
             Application.Run(Global.MainForm);
         }
+
         private static void LogEnvironment()
         {
             Log.Information("Netch Version: {Version}", $"{UpdateChecker.Owner}/{UpdateChecker.Repo}@{UpdateChecker.Version}");
-            Log.Information("Environment: {OSVersion}", Environment.OSVersion);
+            Log.Information("OS: {OSVersion}", Environment.OSVersion);
             Log.Information("SHA256: {Hash}", $"{Utils.Utils.SHA256CheckSum(Global.NetchExecutable)}");
+            Log.Information("System Language: {Language}", CultureInfo.CurrentCulture.Name);
             if (Log.IsEnabled(LogEventLevel.Debug))
                 Log.Debug("Third-party Drivers:\n{Drivers}", string.Join("\n", SystemInfo.SystemDrivers(false)));
         }
 
+        private static void CheckClr()
+        {
+            var framework = Assembly.GetExecutingAssembly().GetCustomAttribute<TargetFrameworkAttribute>()?.FrameworkName;
+            if (framework == null)
+            {
+                Log.Warning("TargetFrameworkAttribute null");
+                return;
+            }
+
+            var frameworkName = new FrameworkName(framework);
+
+            if (frameworkName.Version.Major != Environment.Version.Major)
+            {
+                Log.Information("CLR: {Version}", Environment.Version);
+                Flags.NoSupport = true;
+                if(!Global.Settings.NoSupportDialog)
+                    MessageBoxX.Show(i18N.TranslateFormat("{0} won't get developers' support, Please do not report any issues or seek help from developers.", "CLR " + Environment.Version), LogLevel.WARNING);
+            }
+        }
+
+        private static void CheckOS()
+        {
+            if (Environment.OSVersion.Version.Build < 17763)
+            {
+                Flags.NoSupport = true;
+                if(!Global.Settings.NoSupportDialog)
+                    MessageBoxX.Show(i18N.TranslateFormat("{0} won't get developers' support, Please do not report any issues or seek help from developers.", Environment.OSVersion), LogLevel.WARNING);
+            }
+        }
+
         private static void InitConsole()
         {
-            Kernel32.AllocConsole();
+            PInvoke.AllocConsole();
 
-            ConsoleHwnd = Kernel32.GetConsoleWindow();
+            ConsoleHwnd = PInvoke.GetConsoleWindow();
 #if RELEASE
-            User32.ShowWindow(ConsoleHwnd, ShowWindowCommand.SW_HIDE);
+            PInvoke.ShowWindow(ConsoleHwnd, SHOW_WINDOW_CMD.SW_HIDE);
 #endif
         }
 

Netch/Netch.csproj

@@ -1,29 +1,23 @@
 <Project Sdk="Microsoft.NET.Sdk">
+
+    <Import Project="..\common.props" />
+
     <PropertyGroup>
         <OutputType>WinExe</OutputType>
+        <Configurations>Debug;Release</Configurations>
         <UseWindowsForms>true</UseWindowsForms>
-        <UseWPF>true</UseWPF>
         <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
-        <StartupObject>Netch.Netch</StartupObject>
         <ApplicationManifest>App.manifest</ApplicationManifest>
+        <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
+        <AppendRuntimeIdentifierToOutputPath>false</AppendRuntimeIdentifierToOutputPath>
         <ApplicationIcon>Resources\Netch.ico</ApplicationIcon>
         <IsPackable>false</IsPackable>
-        <LangVersion>latest</LangVersion>
-        <Nullable>enable</Nullable>
+        <NoWarn>VSTHRD100</NoWarn>
         <EnableNETAnalyzers>false</EnableNETAnalyzers>
         <AnalysisMode>Default</AnalysisMode>
         <CodeAnalysisTreatWarningsAsErrors>true</CodeAnalysisTreatWarningsAsErrors>
     </PropertyGroup>
 
-    <PropertyGroup>
-        <TargetFramework>net5.0-windows</TargetFramework>
-        <RuntimeIdentifiers>win-x64</RuntimeIdentifiers>
-        <Configurations>Debug;Release</Configurations>
-        <Platforms>x64</Platforms>
-        <AppendTargetFrameworkToOutputPath>false</AppendTargetFrameworkToOutputPath>
-        <AppendRuntimeIdentifierToOutputPath>false</AppendRuntimeIdentifierToOutputPath>
-    </PropertyGroup>
-
     <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
         <OutputPath>bin\x64\Debug\</OutputPath>
         <DefineConstants>DEBUG;TRACE</DefineConstants>
@@ -38,8 +32,13 @@
     <ItemGroup>
         <PackageReference Include="HMBSbige.SingleInstance" Version="5.0.7" />
         <PackageReference Include="MaxMind.GeoIP2" Version="4.0.1" />
-        <PackageReference Include="Microsoft.Diagnostics.Tracing.TraceEvent" Version="2.0.70" GeneratePathProperty="true" />
-        <PackageReference Include="Nullable.Extended.Analyzer" Version="1.2.4089">
+        <PackageReference Include="Microsoft.Diagnostics.Tracing.TraceEvent" Version="2.0.71" GeneratePathProperty="true" />
+        <PackageReference Include="Microsoft.VisualStudio.Threading" Version="16.10.56" />
+        <PackageReference Include="Microsoft.Windows.CsWin32" Version="0.1.506-beta">
+          <PrivateAssets>all</PrivateAssets>
+          <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+        <PackageReference Include="Nullable.Extended.Analyzer" Version="1.10.4539">
           <PrivateAssets>all</PrivateAssets>
           <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
         </PackageReference>
@@ -48,49 +47,35 @@
         <PackageReference Include="Serilog.Sinks.Async" Version="1.5.0" />
         <PackageReference Include="Serilog.Sinks.Debug" Version="2.0.0" Condition="'$(Configuration)'=='Debug'" />
         <PackageReference Include="Serilog.Sinks.File" Version="5.0.0" />
-        <PackageReference Include="System.Drawing.Common" Version="5.0.2" />
+        <PackageReference Include="Stun.Net" Version="5.0.0" />
         <PackageReference Include="System.Management" Version="5.0.0" />
         <PackageReference Include="System.Reactive" Version="5.0.0" />
         <PackageReference Include="TaskScheduler" Version="2.9.1" />
-        <PackageReference Include="Vanara.PInvoke.IpHlpApi" Version="3.3.10" />
         <PackageReference Include="Microsoft-WindowsAPICodePack-Shell" Version="1.1.4" />
-        <PackageReference Include="Vanara.PInvoke.User32" Version="3.3.10" />
-        <PackageReference Include="WindowsFirewallHelper" Version="2.0.4.70-beta2" />
+        <PackageReference Include="WindowsFirewallHelper" Version="2.1.4.81" />
         <PackageReference Include="System.ServiceProcess.ServiceController" Version="5.0.0" />
         <PackageReference Include="System.Text.Encoding.CodePages" Version="5.0.0" />
     </ItemGroup>
 
-    <ItemGroup>
-        <Compile Update="Properties\Resources.Designer.cs">
-            <DesignTime>True</DesignTime>
-            <AutoGen>True</AutoGen>
-            <DependentUpon>Resources.resx</DependentUpon>
-        </Compile>
-        <Compile Update="Properties\Settings.Designer.cs">
-            <DesignTimeSharedInput>True</DesignTimeSharedInput>
-            <AutoGen>True</AutoGen>
-            <DependentUpon>Settings.settings</DependentUpon>
-        </Compile>
-        <Compile Update="Forms\Mode\RouteForm.cs" />
-    </ItemGroup>
-
     <ItemGroup>
         <EmbeddedResource Update="Properties\Resources.resx">
             <Generator>ResXFileCodeGenerator</Generator>
             <LastGenOutput>Resources.Designer.cs</LastGenOutput>
         </EmbeddedResource>
-    </ItemGroup>
-
-    <ItemGroup>
-        <None Update="Properties\Settings.settings">
-            <Generator>SettingsSingleFileGenerator</Generator>
-            <LastGenOutput>Settings.Designer.cs</LastGenOutput>
-        </None>
+        <Compile Update="Properties\Resources.Designer.cs">
+            <DesignTime>True</DesignTime>
+            <AutoGen>True</AutoGen>
+            <DependentUpon>Resources.resx</DependentUpon>
+        </Compile>
     </ItemGroup>
 
     <Target Condition="'$(PublishSingleFile)' == 'true'" AfterTargets="_ComputeFilesToBundle" Name="RemoveDupeAssemblies">
         <ItemGroup>
             <_FilesToBundle Remove="$(PkgMicrosoft_Diagnostics_Tracing_TraceEvent)\build\native\x86\**" />
+            <!--      .NET 6 SDK fixes MSB4018 "Multiple entries with the same BundleRelativePath", 
+                      if still retain the following properties,
+                      you will encounter a "lib/netstandard2.0/Dial2Lib.dll not found" error
+            -->
             <_FilesToBundle Remove="$(PkgMicrosoft_Diagnostics_Tracing_TraceEvent)\lib\netstandard1.6\Dia2Lib.dll" />
             <_FilesToBundle Remove="$(PkgMicrosoft_Diagnostics_Tracing_TraceEvent)\lib\netstandard1.6\OSExtensions.dll" />
             <_FilesToBundle Remove="$(PkgMicrosoft_Diagnostics_Tracing_TraceEvent)\lib\netstandard1.6\TraceReloggerLib.dll" />

Netch/Properties/Settings.Designer.cs

@@ -1,26 +0,0 @@
-//------------------------------------------------------------------------------
-// <auto-generated>
-//     此代码由工具生成。
-//     运行时版本:4.0.30319.42000
-//
-//     对此文件的更改可能会导致不正确的行为，并且如果
-//     重新生成代码，这些更改将会丢失。
-// </auto-generated>
-//------------------------------------------------------------------------------
-
-namespace Netch.Properties {
-    
-    
-    [global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
-    [global::System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "16.4.0.0")]
-    internal sealed partial class Settings : global::System.Configuration.ApplicationSettingsBase {
-        
-        private static Settings defaultInstance = ((Settings)(global::System.Configuration.ApplicationSettingsBase.Synchronized(new Settings())));
-        
-        public static Settings Default {
-            get {
-                return defaultInstance;
-            }
-        }
-    }
-}

Netch/Properties/Settings.settings

@@ -1,7 +0,0 @@
-<?xml version='1.0' encoding='utf-8'?>
-<SettingsFile xmlns="http://schemas.microsoft.com/VisualStudio/2004/01/settings" CurrentProfile="(Default)">
-  <Profiles>
-    <Profile Name="(Default)" />
-  </Profiles>
-  <Settings />
-</SettingsFile>

Netch/Resources/zh-CN

@@ -15,7 +15,7 @@
     "Stopping": "正在停止中",
     "Stopped": "已停止",
     "Starting {0}": "正在启动 {0}",
-    "Testing NAT": "正在测试 NAT",
+    "Testing NAT Type": "正在测试 NAT 类型",
     "Setup Route Table Rule": "配置路由规则",
     "Test failed": "测试失败",
     "Starting update subscription": "正在更新订阅",
@@ -103,6 +103,7 @@
     "Please select a mode first": "请先选择一个模式",
     "Please enter a profile name first": "请先为该配置设置一个名称",
     "No saved profile here. Save a profile first by Ctrl+Click on the button": "当前按钮下没有保存配置，请先使用 CTRL + 左键 点击该按钮保存一个配置",
+    "Lookup Server hostname failed": "解析服务器主机名失败",
 
     "Used": "已使用",
     "Testing": "测试中",
@@ -154,15 +155,14 @@
     "Handle process's DNS Hijack": "被代理进程 DNS 劫持",
     "Child Process Handle": "子进程代理",
     "ICMP Delay(ms)": "ICMP 延迟（毫秒）",
-    "Redirector built-in Shadowsocks support": "Redirector 内建 Shadowsocks 支持",
     "Profile Count": "快捷配置数量",
     "Delay test after start(sec)": "启动后延迟测试（秒）",
     "Ping Protocol": "延迟测试协议",
     "Detection Tick(sec)": "检测心跳（秒）",
     "STUN Server": "STUN 服务器",
     "Language": "语言",
-    "Resolve Server Hostname": "解析服务器主机名",
     "FullCone Support (Required Server Xray-core v1.3.0+)": "FullCone 支持（需服务端 Xray-core v1.3.0+）",
+    "Disable Support Warning": "停用支持警告",
 
     "Profile": "配置名",
     "Profiles": "配置",
@@ -172,5 +172,9 @@
     "Exit": "退出",
 
     "The {0} port is in use.": "{0} 端口已被占用",
-    "The {0} port is reserved by system.": "{0} 端口是系统保留端口"
+    "The {0} port is reserved by system.": "{0} 端口是系统保留端口",
+    
+    "\"Core.bin\" is missing. Please check your Antivirus software": "找不到 \"Core.bin\" 文件！请检查你的杀毒软件。",
+    "{0} won't get developers' support, Please do not report any issues or seek help from developers.": "{0} 将不会得到开发者的支持，请不要报告任何问题或寻求开发人员的帮助。",
+    "No Support": "不受支持"
 }

Netch/Servers/Shadowsocks/SSController.cs

@@ -1,73 +0,0 @@
-using System.Collections.Generic;
-using System.Net;
-using Netch.Controllers;
-using Netch.Interfaces;
-using Netch.Models;
-
-namespace Netch.Servers.Shadowsocks
-{
-    public class SSController : Guard, IServerController
-    {
-        public SSController() : base("Shadowsocks.exe")
-        {
-        }
-
-        protected override IEnumerable<string> StartedKeywords => new[] { "listening at" };
-
-        protected override IEnumerable<string> FailedKeywords => new[] { "Invalid config path", "usage", "plugin service exit unexpectedly" };
-
-        public override string Name => "Shadowsocks";
-
-        public ushort? Socks5LocalPort { get; set; }
-
-        public string? LocalAddress { get; set; }
-
-        public Socks5 Start(in Server s)
-        {
-            var server = (Shadowsocks)s;
-
-            var command = new SSParameter
-            {
-                s = server.AutoResolveHostname(),
-                p = server.Port,
-                b = this.LocalAddress(),
-                l = this.Socks5LocalPort(),
-                m = server.EncryptMethod,
-                k = server.Password,
-                u = true,
-                plugin = server.Plugin,
-                plugin_opts = server.PluginOption
-            };
-
-            StartGuard(command.ToString());
-            return new Socks5Bridge(IPAddress.Loopback.ToString(), this.Socks5LocalPort(), server.Hostname);
-        }
-
-        [Verb]
-        private class SSParameter : ParameterBase
-        {
-            public string? s { get; set; }
-
-            public ushort? p { get; set; }
-
-            public string? b { get; set; }
-
-            public ushort? l { get; set; }
-
-            public string? m { get; set; }
-
-            public string? k { get; set; }
-
-            public bool u { get; set; }
-
-            [Full] [Optional] public string? plugin { get; set; }
-
-            [Full]
-            [Optional]
-            [RealName("plugin-opts")]
-            public string? plugin_opts { get; set; }
-
-            [Full] [Quote] [Optional] public string? acl { get; set; }
-        }
-    }
-}

Netch/Servers/Shadowsocks/ShadowsocksController.cs

@@ -0,0 +1,47 @@
+using System.Collections.Generic;
+using System.Net;
+using System.Threading.Tasks;
+using Netch.Controllers;
+using Netch.Interfaces;
+using Netch.Models;
+
+namespace Netch.Servers
+{
+    public class ShadowsocksController : Guard, IServerController
+    {
+        public ShadowsocksController() : base("Shadowsocks.exe")
+        {
+        }
+
+        protected override IEnumerable<string> StartedKeywords => new[] { "listening at" };
+
+        protected override IEnumerable<string> FailedKeywords => new[] { "Invalid config path", "usage", "plugin service exit unexpectedly" };
+
+        public override string Name => "Shadowsocks";
+
+        public ushort? Socks5LocalPort { get; set; }
+
+        public string? LocalAddress { get; set; }
+
+        public async Task<Socks5LocalServer> StartAsync(Server s)
+        {
+            var server = (ShadowsocksServer)s;
+
+            var arguments = new object?[]
+            {
+                "-s", await server.AutoResolveHostnameAsync(),
+                "-p", server.Port,
+                "-b", this.LocalAddress(),
+                "-l", this.Socks5LocalPort(),
+                "-m", server.EncryptMethod,
+                "-k", server.Password,
+                "-u", SpecialArgument.Flag,
+                "--plugin", server.Plugin,
+                "--plugin-opts", server.PluginOption
+            };
+
+            await StartGuardAsync(Arguments.Format(arguments));
+            return new Socks5LocalServer(IPAddress.Loopback.ToString(), this.Socks5LocalPort(), server.Hostname);
+        }
+    }
+}

Netch/Servers/Shadowsocks/ShadowsocksForm.cs

@@ -1,13 +1,13 @@
 using Netch.Forms;
 using Netch.Utils;
 
-namespace Netch.Servers.Shadowsocks.Form
+namespace Netch.Servers
 {
     public class ShadowsocksForm : ServerForm
     {
-        public ShadowsocksForm(Shadowsocks? server = default)
+        public ShadowsocksForm(ShadowsocksServer? server = default)
         {
-            server ??= new Shadowsocks();
+            server ??= new ShadowsocksServer();
             Server = server;
             CreateTextBox("Password", "Password", s => !s.IsNullOrWhiteSpace(), s => server.Password = s, server.Password);
             CreateComboBox("EncryptMethod", "Encrypt Method", SSGlobal.EncryptMethods, s => server.EncryptMethod = s, server.EncryptMethod);

Netch/Servers/Shadowsocks/ShadowsocksServer.cs

@@ -1,9 +1,9 @@
 using System.Collections.Generic;
 using Netch.Models;
 
-namespace Netch.Servers.Shadowsocks
+namespace Netch.Servers
 {
-    public class Shadowsocks : Server
+    public class ShadowsocksServer : Server
     {
         public override string Type { get; } = "SS";
         public override string MaskedData()

Netch/Servers/Shadowsocks/ShadowsocksUtil.cs

@@ -6,14 +6,12 @@ using System.Text.RegularExpressions;
 using System.Web;
 using Netch.Interfaces;
 using Netch.Models;
-using Netch.Servers.Shadowsocks.Form;
-using Netch.Servers.Shadowsocks.Models.SSD;
 using Netch.Utils;
 using Serilog;
 
-namespace Netch.Servers.Shadowsocks
+namespace Netch.Servers
 {
-    public class SSUtil : IServerUtil
+    public class ShadowsocksUtil : IServerUtil
     {
         public ushort Priority { get; } = 1;
 
@@ -25,11 +23,11 @@ namespace Netch.Servers.Shadowsocks
 
         public string[] UriScheme { get; } = { "ss", "ssd" };
 
-        public Type ServerType { get; } = typeof(Shadowsocks);
+        public Type ServerType { get; } = typeof(ShadowsocksServer);
 
         public void Edit(Server s)
         {
-            new ShadowsocksForm((Shadowsocks)s).ShowDialog();
+            new ShadowsocksForm((ShadowsocksServer)s).ShowDialog();
         }
 
         public void Create()
@@ -39,7 +37,7 @@ namespace Netch.Servers.Shadowsocks
 
         public string GetShareLink(Server s)
         {
-            var server = (Shadowsocks)s;
+            var server = (ShadowsocksServer)s;
             // ss://method:password@server:port#Remark
             return "ss://" + ShareLink.URLSafeBase64Encode($"{server.EncryptMethod}:{server.Password}@{server.Hostname}:{server.Port}") + "#" +
                    HttpUtility.UrlEncode(server.Remark);
@@ -47,7 +45,7 @@ namespace Netch.Servers.Shadowsocks
 
         public IServerController GetController()
         {
-            return new SSController();
+            return new ShadowsocksController();
         }
 
         public IEnumerable<Server> ParseUri(string text)
@@ -63,7 +61,7 @@ namespace Netch.Servers.Shadowsocks
 
         public bool CheckServer(Server s)
         {
-            var server = (Shadowsocks)s;
+            var server = (ShadowsocksServer)s;
             if (!SSGlobal.EncryptMethods.Contains(server.EncryptMethod))
             {
                 Log.Warning("不支持的 SS 加密方式：{Method}", server.EncryptMethod);
@@ -75,9 +73,9 @@ namespace Netch.Servers.Shadowsocks
 
         public IEnumerable<Server> ParseSsdUri(string s)
         {
-            var json = JsonSerializer.Deserialize<Main>(ShareLink.URLSafeBase64Decode(s.Substring(6)))!;
+            var json = JsonSerializer.Deserialize<SSDJObject>(ShareLink.URLSafeBase64Decode(s.Substring(6)))!;
 
-            return json.servers.Select(server => new Shadowsocks
+            return json.servers.Select(server => new ShadowsocksServer
                 {
                     Remark = server.remarks,
                     Hostname = server.server,
@@ -92,9 +90,9 @@ namespace Netch.Servers.Shadowsocks
                 .Where(CheckServer);
         }
 
-        public Shadowsocks ParseSsUri(string text)
+        public ShadowsocksServer ParseSsUri(string text)
         {
-            var data = new Shadowsocks();
+            var data = new ShadowsocksServer();
 
             text = text.Replace("/?", "?");
             if (text.Contains("#"))

Netch/Servers/Shadowsocks/ShareModels/SSDJObject.cs

@@ -1,9 +1,9 @@
 #nullable disable
 using System.Collections.Generic;
 
-namespace Netch.Servers.Shadowsocks.Models.SSD
+namespace Netch.Servers
 {
-    public class Main
+    public class SSDJObject
     {
         /// <summary>
         ///     机场名
@@ -38,6 +38,6 @@ namespace Netch.Servers.Shadowsocks.Models.SSD
         /// <summary>
         ///     服务器数组
         /// </summary>
-        public List<SSDServer> servers;
+        public List<SSDServerJObject> servers;
     }
 }

Netch/Servers/Shadowsocks/ShareModels/SSDServerJObject.cs

@@ -1,7 +1,7 @@
 #nullable disable
-namespace Netch.Servers.Shadowsocks.Models.SSD
+namespace Netch.Servers
 {
-    public class SSDServer
+    public class SSDServerJObject
     {
         /// <summary>
         ///     加密方式

Netch/Servers/Shadowsocks/ShareModels/ShadowsocksConfig.cs

@@ -1,6 +1,10 @@
 #nullable disable
-namespace Netch.Servers.Shadowsocks.Models
+namespace Netch.Servers
 {
+    /// <summary>
+    ///     Import Shadowsocks Server from Json Configuration
+    ///     <see cref="Utils.ShareLink.ParseText"/>
+    /// </summary>
     public class ShadowsocksConfig
     {
         public string server { get; set; }

Netch/Servers/ShadowsocksR/SSRController.cs

@@ -1,87 +0,0 @@
-using System.Collections.Generic;
-using System.Net;
-using Netch.Controllers;
-using Netch.Interfaces;
-using Netch.Models;
-
-namespace Netch.Servers.ShadowsocksR
-{
-    public class SSRController : Guard, IServerController
-    {
-        public SSRController() : base("ShadowsocksR.exe")
-        {
-        }
-
-        protected override IEnumerable<string> StartedKeywords => new[] { "listening at" };
-
-        protected override IEnumerable<string> FailedKeywords => new[] { "Invalid config path", "usage" };
-
-        public override string Name => "ShadowsocksR";
-
-        public ushort? Socks5LocalPort { get; set; }
-
-        public string? LocalAddress { get; set; }
-
-        public Socks5 Start(in Server s)
-        {
-            var server = (ShadowsocksR)s;
-
-            var command = new SSRParameter
-            {
-                s = server.AutoResolveHostname(),
-                p = server.Port,
-                k = server.Password,
-                m = server.EncryptMethod,
-                t = "120",
-                O = server.Protocol,
-                G = server.ProtocolParam,
-                o = server.OBFS,
-                g = server.OBFSParam,
-                b = this.LocalAddress(),
-                l = this.Socks5LocalPort(),
-                u = true
-            };
-
-            StartGuard(command.ToString());
-            return new Socks5Bridge(IPAddress.Loopback.ToString(), this.Socks5LocalPort(),server.Hostname);
-        }
-
-        [Verb]
-        class SSRParameter : ParameterBase
-        {
-            public string? s { get; set; }
-
-            public ushort? p { get; set; }
-
-            [Quote]
-            public string? k { get; set; }
-
-            public string? m { get; set; }
-
-            public string? t { get; set; }
-
-            [Optional]
-            public string? O { get; set; }
-
-            [Optional]
-            public string? G { get; set; }
-
-            [Optional]
-            public string? o { get; set; }
-
-            [Optional]
-            public string? g { get; set; }
-
-            public string? b { get; set; }
-
-            public ushort? l { get; set; }
-
-            public bool u { get; set; }
-
-            [Full]
-            [Quote]
-            [Optional]
-            public string? acl { get; set; }
-        }
-    }
-}

Netch/Servers/ShadowsocksR/ShadowsocksRController.cs

@@ -0,0 +1,50 @@
+using System.Collections.Generic;
+using System.Net;
+using System.Threading.Tasks;
+using Netch.Controllers;
+using Netch.Interfaces;
+using Netch.Models;
+
+namespace Netch.Servers
+{
+    public class ShadowsocksRController : Guard, IServerController
+    {
+        public ShadowsocksRController() : base("ShadowsocksR.exe")
+        {
+        }
+
+        protected override IEnumerable<string> StartedKeywords => new[] { "listening at" };
+
+        protected override IEnumerable<string> FailedKeywords => new[] { "Invalid config path", "usage" };
+
+        public override string Name => "ShadowsocksR";
+
+        public ushort? Socks5LocalPort { get; set; }
+
+        public string? LocalAddress { get; set; }
+
+        public async Task<Socks5LocalServer> StartAsync(Server s)
+        {
+            var server = (ShadowsocksRServer)s;
+
+            var arguments = new object?[]
+            {
+                "-s", await server.AutoResolveHostnameAsync(),
+                "-p", server.Port,
+                "-k", server.Password,
+                "-m", server.EncryptMethod,
+                "-t", 120,
+                "-O", server.Protocol,
+                "-G", server.ProtocolParam,
+                "-o", server.OBFS,
+                "-g", server.OBFSParam,
+                "-b", this.LocalAddress(),
+                "-l", this.Socks5LocalPort(),
+                "-u", SpecialArgument.Flag
+            };
+
+            await StartGuardAsync(Arguments.Format(arguments));
+            return new Socks5LocalServer(IPAddress.Loopback.ToString(), this.Socks5LocalPort(), server.Hostname);
+        }
+    }
+}

Netch/Servers/ShadowsocksR/ShadowsocksRForm.cs

@@ -1,13 +1,13 @@
 using Netch.Forms;
 using Netch.Utils;
 
-namespace Netch.Servers.ShadowsocksR.Form
+namespace Netch.Servers
 {
     public class ShadowsocksRForm : ServerForm
     {
-        public ShadowsocksRForm(ShadowsocksR? server = default)
+        public ShadowsocksRForm(ShadowsocksRServer? server = default)
         {
-            server ??= new ShadowsocksR();
+            server ??= new ShadowsocksRServer();
             Server = server;
             CreateTextBox("Password", "Password", s => !s.IsNullOrWhiteSpace(), s => server.Password = s, server.Password);
             CreateComboBox("EncryptMethod", "Encrypt Method", SSRGlobal.EncryptMethods, s => server.EncryptMethod = s, server.EncryptMethod);

Netch/Servers/ShadowsocksR/ShadowsocksRServer.cs

@@ -1,9 +1,9 @@
 using System.Collections.Generic;
 using Netch.Models;
 
-namespace Netch.Servers.ShadowsocksR
+namespace Netch.Servers
 {
-    public class ShadowsocksR : Server
+    public class ShadowsocksRServer : Server
     {
         public override string Type { get; } = "SSR";
         public override string MaskedData()

Netch/Servers/ShadowsocksR/ShadowsocksRUtil.cs

@@ -3,14 +3,12 @@ using System.Collections.Generic;
 using System.Text.RegularExpressions;
 using Netch.Interfaces;
 using Netch.Models;
-using Netch.Servers.Shadowsocks;
-using Netch.Servers.ShadowsocksR.Form;
 using Netch.Utils;
 using Serilog;
 
-namespace Netch.Servers.ShadowsocksR
+namespace Netch.Servers
 {
-    public class SSRUtil : IServerUtil
+    public class ShadowsocksRUtil : IServerUtil
     {
         public ushort Priority { get; } = 1;
 
@@ -22,11 +20,11 @@ namespace Netch.Servers.ShadowsocksR
 
         public string[] UriScheme { get; } = { "ssr" };
 
-        public Type ServerType { get; } = typeof(ShadowsocksR);
+        public Type ServerType { get; } = typeof(ShadowsocksRServer);
 
         public void Edit(Server s)
         {
-            new ShadowsocksRForm((ShadowsocksR)s).ShowDialog();
+            new ShadowsocksRForm((ShadowsocksRServer)s).ShowDialog();
         }
 
         public void Create()
@@ -36,7 +34,7 @@ namespace Netch.Servers.ShadowsocksR
 
         public string GetShareLink(Server s)
         {
-            var server = (ShadowsocksR)s;
+            var server = (ShadowsocksRServer)s;
 
             // https://github.com/shadowsocksr-backup/shadowsocks-rss/wiki/SSR-QRcode-scheme
             // ssr://base64(host:port:protocol:method:obfs:base64pass/?obfsparam=base64param&protoparam=base64param&remarks=base64remarks&group=base64group&udpport=0&uot=0)
@@ -50,7 +48,7 @@ namespace Netch.Servers.ShadowsocksR
 
         public IServerController GetController()
         {
-            return new SSRController();
+            return new ShadowsocksRController();
         }
 
         /// <summary>
@@ -113,7 +111,7 @@ namespace Netch.Servers.ShadowsocksR
             if (SSGlobal.EncryptMethods.Contains(method) && protocol == "origin" && obfs == "plain")
                 return new[]
                 {
-                    new Shadowsocks.Shadowsocks
+                    new ShadowsocksServer
                     {
                         Hostname = serverAddr,
                         Port = serverPort,
@@ -126,7 +124,7 @@ namespace Netch.Servers.ShadowsocksR
 
             return new[]
             {
-                new ShadowsocksR
+                new ShadowsocksRServer
                 {
                     Hostname = serverAddr,
                     Port = serverPort,
@@ -144,7 +142,7 @@ namespace Netch.Servers.ShadowsocksR
 
         public bool CheckServer(Server s)
         {
-            var server = (ShadowsocksR)s;
+            var server = (ShadowsocksRServer)s;
             if (!SSRGlobal.EncryptMethods.Contains(server.EncryptMethod))
             {
                 Log.Error("不支持的 SSR 加密方式：{Method}", server.EncryptMethod);

Netch/Servers/Socks5/S5Controller.cs

@@ -1,19 +0,0 @@
-using Netch.Models;
-using Netch.Servers;
-
-namespace Netch.Servers
-{
-    public class S5Controller : V2rayController
-    {
-        public override string Name { get; } = "Socks5";
-
-        public override Socks5 Start(in Server s)
-        {
-            var server = (Socks5)s;
-            if (server.Auth())
-                base.Start(s);
-
-            return server;
-        }
-    }
-}

Netch/Servers/Socks5/Socks5Controller.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Threading.Tasks;
+using Netch.Models;
+
+namespace Netch.Servers
+{
+    public class Socks5Controller : V2rayController
+    {
+        public override string Name { get; } = "Socks5";
+
+        public override async Task<Socks5LocalServer> StartAsync(Server s)
+        {
+            var server = (Socks5Server)s;
+            if (!server.Auth())
+                throw new ArgumentException();
+
+            return await base.StartAsync(s);
+        }
+    }
+}

Netch/Servers/Socks5/Socks5Form.cs

@@ -4,9 +4,9 @@ namespace Netch.Servers
 {
     public class Socks5Form : ServerForm
     {
-        public Socks5Form(Socks5? server = default)
+        public Socks5Form(Socks5Server? server = default)
         {
-            server ??= new Socks5();
+            server ??= new Socks5Server();
             Server = server;
             CreateTextBox("Username", "Username", s => true, s => server.Username = s, server.Username);
             CreateTextBox("Password", "Password", s => true, s => server.Password = s, server.Password);

Netch/Servers/Socks5/Socks5LocalServer.cs

@@ -5,10 +5,12 @@
     ///     Encrypted proxy client's local socks5 server
     ///     (<see cref="RemoteHostname"/> property is used for saving remote address/hostname for special use)
     /// </summary>
-    public class Socks5Bridge : Socks5
+    public class Socks5LocalServer : Socks5Server
     {
-        public Socks5Bridge(string hostname, ushort port, string remoteHostname) : base(hostname, port)
+        public Socks5LocalServer(string hostname, ushort port, string remoteHostname)
         {
+            Hostname = hostname;
+            Port = port;
             RemoteHostname = remoteHostname;
         }
 

Netch/Servers/Socks5/Socks5Server.cs

@@ -2,17 +2,17 @@
 
 namespace Netch.Servers
 {
-    public class Socks5 : Server
+    public class Socks5Server : Server
     {
         /// <summary>
         ///     密码
         /// </summary>
-        public string? Password;
+        public string? Password { get; set; }
 
         /// <summary>
         ///     账号
         /// </summary>
-        public string? Username;
+        public string? Username { get; set; }
 
         public override string Type { get; } = "Socks5";
 
@@ -21,17 +21,17 @@ namespace Netch.Servers
             return $"Auth: {Auth()}";
         }
 
-        public Socks5()
+        public Socks5Server()
         {
         }
 
-        public Socks5(string hostname, ushort port)
+        public Socks5Server(string hostname, ushort port)
         {
             Hostname = hostname;
             Port = port;
         }
 
-        public Socks5(string hostname, ushort port, string username, string password) : this(hostname, port)
+        public Socks5Server(string hostname, ushort port, string username, string password) : this(hostname, port)
         {
             Username = username;
             Password = password;

Netch/Servers/Socks5/Socks5Util.cs

@@ -6,7 +6,7 @@ using Netch.Models;
 
 namespace Netch.Servers
 {
-    public class S5Util : IServerUtil
+    public class Socks5Util : IServerUtil
     {
         public ushort Priority { get; } = 0;
 
@@ -18,11 +18,11 @@ namespace Netch.Servers
 
         public string[] UriScheme { get; } = { };
 
-        public Type ServerType { get; } = typeof(Socks5);
+        public Type ServerType { get; } = typeof(Socks5Server);
 
         public void Edit(Server s)
         {
-            new Socks5Form((Socks5)s).ShowDialog();
+            new Socks5Form((Socks5Server)s).ShowDialog();
         }
 
         public void Create()
@@ -32,7 +32,7 @@ namespace Netch.Servers
 
         public string GetShareLink(Server s)
         {
-            var server = (Socks5)s;
+            var server = (Socks5Server)s;
             // https://t.me/socks?server=1.1.1.1&port=443
             return $"https://t.me/socks?server={server.Hostname}&port={server.Port}" +
                    $"{(!string.IsNullOrWhiteSpace(server.Username) ? $"&user={server.Username}" : "")}" +
@@ -41,7 +41,7 @@ namespace Netch.Servers
 
         public IServerController GetController()
         {
-            return new S5Controller();
+            return new Socks5Controller();
         }
 
         public IEnumerable<Server> ParseUri(string text)
@@ -55,7 +55,7 @@ namespace Netch.Servers
             if (!dict.ContainsKey("server") || !dict.ContainsKey("port"))
                 throw new FormatException();
 
-            var data = new Socks5
+            var data = new Socks5Server
             {
                 Hostname = dict["server"],
                 Port = ushort.Parse(dict["port"])

Netch/Servers/Trojan/TrojanConfig.cs

@@ -1,7 +1,7 @@
 #nullable disable
 using System.Collections.Generic;
 
-namespace Netch.Servers.Models
+namespace Netch.Servers
 {
     public class TrojanConfig
     {

Netch/Servers/Trojan/TrojanController.cs

@@ -2,10 +2,10 @@
 using System.IO;
 using System.Net;
 using System.Text.Json;
+using System.Threading.Tasks;
 using Netch.Controllers;
 using Netch.Interfaces;
 using Netch.Models;
-using Netch.Servers.Models;
 using Netch.Utils;
 
 namespace Netch.Servers
@@ -26,14 +26,14 @@ namespace Netch.Servers
 
         public string? LocalAddress { get; set; }
 
-        public Socks5 Start(in Server s)
+        public async Task<Socks5LocalServer> StartAsync(Server s)
         {
-            var server = (Trojan)s;
+            var server = (TrojanServer)s;
             var trojanConfig = new TrojanConfig
             {
                 local_addr = this.LocalAddress(),
                 local_port = this.Socks5LocalPort(),
-                remote_addr = server.AutoResolveHostname(),
+                remote_addr = await server.AutoResolveHostnameAsync(),
                 remote_port = server.Port,
                 password = new List<string>
                 {
@@ -41,17 +41,17 @@ namespace Netch.Servers
                 },
                 ssl = new TrojanSSL
                 {
-                    sni = server.Host.ValueOrDefault() ?? (Global.Settings.ResolveServerHostname ? server.Hostname : "")
+                    sni = server.Host.ValueOrDefault() ?? server.Hostname
                 }
             };
 
-            using (var fileStream = new FileStream(Constants.TempConfig, FileMode.Create, FileAccess.Write))
+            await using (var fileStream = new FileStream(Constants.TempConfig, FileMode.Create, FileAccess.Write, FileShare.Read))
             {
-                JsonSerializer.SerializeAsync(fileStream, trojanConfig, Global.NewCustomJsonSerializerOptions()).Wait();
+                await JsonSerializer.SerializeAsync(fileStream, trojanConfig, Global.NewCustomJsonSerializerOptions());
             }
 
-            StartGuard("-c ..\\data\\last.json");
-            return new Socks5Bridge(IPAddress.Loopback.ToString(), this.Socks5LocalPort(), server.Hostname);
+            await StartGuardAsync("-c ..\\data\\last.json");
+            return new Socks5LocalServer(IPAddress.Loopback.ToString(), this.Socks5LocalPort(), server.Hostname);
         }
     }
 }

Netch/Servers/Trojan/TrojanForm.cs

@@ -1,12 +1,12 @@
 using Netch.Forms;
 
-namespace Netch.Servers.Form
+namespace Netch.Servers
 {
     public class TrojanForm : ServerForm
     {
-        public TrojanForm(Trojan? server = default)
+        public TrojanForm(TrojanServer? server = default)
         {
-            server ??= new Trojan();
+            server ??= new TrojanServer();
             Server = server;
             CreateTextBox("Password", "Password", s => true, s => server.Password = s, server.Password);
             CreateTextBox("Host", "Host", s => true, s => server.Host = s, server.Host);

Netch/Servers/Trojan/TrojanServer.cs

@@ -2,7 +2,7 @@ using Netch.Models;
 
 namespace Netch.Servers
 {
-    public class Trojan : Server
+    public class TrojanServer : Server
     {
         public override string Type { get; } = "Trojan";
         public override string MaskedData()

Netch/Servers/Trojan/TrojanUtil.cs

@@ -4,7 +4,6 @@ using System.Text.RegularExpressions;
 using System.Web;
 using Netch.Interfaces;
 using Netch.Models;
-using Netch.Servers.Form;
 
 namespace Netch.Servers
 {
@@ -20,11 +19,11 @@ namespace Netch.Servers
 
         public string[] UriScheme { get; } = { "trojan" };
 
-        public Type ServerType { get; } = typeof(Trojan);
+        public Type ServerType { get; } = typeof(TrojanServer);
 
         public void Edit(Server s)
         {
-            new TrojanForm((Trojan)s).ShowDialog();
+            new TrojanForm((TrojanServer)s).ShowDialog();
         }
 
         public void Create()
@@ -34,7 +33,7 @@ namespace Netch.Servers
 
         public string GetShareLink(Server s)
         {
-            var server = (Trojan)s;
+            var server = (TrojanServer)s;
             return $"trojan://{HttpUtility.UrlEncode(server.Password)}@{server.Hostname}:{server.Port}#{server.Remark}";
         }
 
@@ -45,7 +44,7 @@ namespace Netch.Servers
 
         public IEnumerable<Server> ParseUri(string text)
         {
-            var data = new Trojan();
+            var data = new TrojanServer();
 
             text = text.Replace("/?", "?");
             if (text.Contains("#"))

Netch/Servers/V2ray/ShareModels/V2rayNJObject.cs

@@ -1,9 +1,6 @@
-namespace Netch.Servers.Models
+namespace Netch.Servers
 {
-    /// <summary>
-    ///     使用 v2rayN 定义的 VMess 链接格式
-    /// </summary>
-    public class V2rayNSharing
+    public class V2rayNJObject
     {
         /// <summary>
         ///     链接版本

Netch/Servers/V2ray/V2rayConfig.cs

@@ -1,7 +1,7 @@
 #nullable disable
 // ReSharper disable InconsistentNaming
 
-namespace Netch.Servers.V2ray.Models
+namespace Netch.Servers
 {
     public struct V2rayConfig
     {

Netch/Servers/V2ray/V2rayConfigUtils.cs

@@ -1,13 +1,14 @@
-using Netch.Models;
-using Netch.Servers.V2ray.Models;
+using System.Threading.Tasks;
+using Netch.Models;
 using Netch.Utils;
-using V2rayConfig = Netch.Servers.V2ray.Models.V2rayConfig;
 
-namespace Netch.Servers.Utils
+#pragma warning disable VSTHRD200
+
+namespace Netch.Servers
 {
     public static class V2rayConfigUtils
     {
-        public static V2rayConfig GenerateClientConfig(Server server)
+        public static async Task<V2rayConfig> GenerateClientConfigAsync(Server server)
         {
             var v2rayConfig = new V2rayConfig
             {
@@ -26,12 +27,12 @@ namespace Netch.Servers.Utils
                 }
             };
 
-            v2rayConfig.outbounds = new[] { outbound(server) };
+            v2rayConfig.outbounds = new[] { await outbound(server) };
 
             return v2rayConfig;
         }
 
-        private static Outbound outbound(Server server)
+        private static async Task<Outbound> outbound(Server server)
         {
             var outbound = new Outbound
             {
@@ -41,14 +42,14 @@ namespace Netch.Servers.Utils
 
             switch (server)
             {
-                case Socks5 socks5:
+                case Socks5Server socks5:
                 {
                     outbound.protocol = "socks";
                     outbound.settings.servers = new object[]
                     {
                         new
                         {
-                            address = server.AutoResolveHostname(),
+                            address = await server.AutoResolveHostnameAsync(),
                             port = server.Port,
                             users = socks5.Auth()
                                 ? new[]
@@ -68,14 +69,14 @@ namespace Netch.Servers.Utils
                     outbound.mux.concurrency = -1;
                     break;
                 }
-                case VLESS vless:
+                case VLESSServer vless:
                 {
                     outbound.protocol = "vless";
                     outbound.settings.vnext = new[]
                     {
                         new VnextItem
                         {
-                            address = server.AutoResolveHostname(),
+                            address = await server.AutoResolveHostnameAsync(),
                             port = server.Port,
                             users = new[]
                             {
@@ -104,14 +105,14 @@ namespace Netch.Servers.Utils
 
                     break;
                 }
-                case VMess vmess:
+                case VMessServer vmess:
                 {
                     outbound.protocol = "vmess";
                     outbound.settings.vnext = new[]
                     {
                         new VnextItem
                         {
-                            address = server.AutoResolveHostname(),
+                            address = await server.AutoResolveHostnameAsync(),
                             port = server.Port,
                             users = new[]
                             {
@@ -136,7 +137,7 @@ namespace Netch.Servers.Utils
             return outbound;
         }
 
-        private static StreamSettings boundStreamSettings(VMess server)
+        private static StreamSettings boundStreamSettings(VMessServer server)
         {
             // https://xtls.github.io/config/transports
 

Netch/Servers/V2ray/V2rayController.cs

@@ -2,10 +2,10 @@ using System.Collections.Generic;
 using System.IO;
 using System.Net;
 using System.Text.Json;
+using System.Threading.Tasks;
 using Netch.Controllers;
 using Netch.Interfaces;
 using Netch.Models;
-using Netch.Servers.Utils;
 
 namespace Netch.Servers
 {
@@ -27,15 +27,15 @@ namespace Netch.Servers
 
         public string? LocalAddress { get; set; }
 
-        public virtual Socks5 Start(in Server s)
+        public virtual async Task<Socks5LocalServer> StartAsync(Server s)
         {
-            using (var fileStream = new FileStream(Constants.TempConfig, FileMode.Create, FileAccess.Write))
+            await using (var fileStream = new FileStream(Constants.TempConfig, FileMode.Create, FileAccess.Write, FileShare.Read))
             {
-                JsonSerializer.SerializeAsync(fileStream, V2rayConfigUtils.GenerateClientConfig(s), Global.NewCustomJsonSerializerOptions()).Wait();
+                await JsonSerializer.SerializeAsync(fileStream, await V2rayConfigUtils.GenerateClientConfigAsync(s), Global.NewCustomJsonSerializerOptions());
             }
 
-            StartGuard("-config ..\\data\\last.json");
-            return new Socks5Bridge(IPAddress.Loopback.ToString(), this.Socks5LocalPort(), s.Hostname);
+            await StartGuardAsync("-config ..\\data\\last.json");
+            return new Socks5LocalServer(IPAddress.Loopback.ToString(), this.Socks5LocalPort(), s.Hostname);
         }
     }
 }

Netch/Servers/V2ray/V2rayUtils.cs

@@ -13,7 +13,7 @@ namespace Netch.Servers
         public static IEnumerable<Server> ParseVUri(string text)
         {
             var scheme = ShareLink.GetUriScheme(text).ToLower();
-            var server = scheme switch { "vmess" => new VMess(), "vless" => new VLESS(), _ => throw new ArgumentOutOfRangeException() };
+            var server = scheme switch { "vmess" => new VMessServer(), "vless" => new VLESSServer(), _ => throw new ArgumentOutOfRangeException() };
             if (text.Contains("#"))
             {
                 server.Remark = Uri.UnescapeDataString(text.Split('#')[1]);
@@ -58,7 +58,7 @@ namespace Netch.Servers
                 {
                     server.ServerName = parameter.Get("sni") ?? "";
                     if (server.TLSSecureType == "xtls")
-                        ((VLESS)server).Flow = parameter.Get("flow") ?? "";
+                        ((VLESSServer)server).Flow = parameter.Get("flow") ?? "";
                 }
             }
 
@@ -77,7 +77,7 @@ namespace Netch.Servers
         public static string GetVShareLink(Server s, string scheme = "vmess")
         {
             // https://github.com/XTLS/Xray-core/issues/91
-            var server = (VMess)s;
+            var server = (VMessServer)s;
             var parameter = new Dictionary<string, string>();
             // protocol-specific fields
             parameter.Add("type", server.TransferProtocol);
@@ -138,7 +138,7 @@ namespace Netch.Servers
 
                 if (server.TLSSecureType == "xtls")
                 {
-                    var flow = ((VLESS)server).Flow;
+                    var flow = ((VLESSServer)server).Flow;
                     if (!flow.IsNullOrWhiteSpace())
                         parameter.Add("flow", flow!.Replace("-udp443", ""));
                 }

Netch/Servers/VLESS/VLESSForm.cs

@@ -1,13 +1,13 @@
 using System.Collections.Generic;
 using Netch.Forms;
 
-namespace Netch.Servers.VLESSForm
+namespace Netch.Servers
 {
     internal class VLESSForm : ServerForm
     {
-        public VLESSForm(VLESS? server = default)
+        public VLESSForm(VLESSServer? server = default)
         {
-            server ??= new VLESS();
+            server ??= new VLESSServer();
             Server = server;
             CreateTextBox("Sni", "ServerName(Sni)", s => true, s => server.ServerName = s, server.ServerName);
             CreateTextBox("UUID", "UUID", s => true, s => server.UserID = s, server.UserID);

Netch/Servers/VLESS/VLESSServer.cs

@@ -2,7 +2,7 @@ using System.Collections.Generic;
 
 namespace Netch.Servers
 {
-    public class VLESS : VMess
+    public class VLESSServer : VMessServer
     {
         public override string Type { get; } = "VLESS";
 

Netch/Servers/VLESS/VLESSUtil.cs

@@ -2,7 +2,6 @@ using System;
 using System.Collections.Generic;
 using Netch.Interfaces;
 using Netch.Models;
-using Netch.Servers;
 
 namespace Netch.Servers
 {
@@ -18,16 +17,16 @@ namespace Netch.Servers
 
         public string[] UriScheme { get; } = { "vless" };
 
-        public Type ServerType { get; } = typeof(VLESS);
+        public Type ServerType { get; } = typeof(VLESSServer);
 
         public void Edit(Server s)
         {
-            new VLESSForm.VLESSForm((VLESS)s).ShowDialog();
+            new VLESSForm((VLESSServer)s).ShowDialog();
         }
 
         public void Create()
         {
-            new VLESSForm.VLESSForm().ShowDialog();
+            new VLESSForm().ShowDialog();
         }
 
         public string GetShareLink(Server s)

Netch/Servers/VMess/VMessForm.cs

@@ -1,13 +1,13 @@
 using System.Collections.Generic;
 using Netch.Forms;
 
-namespace Netch.Servers.Form
+namespace Netch.Servers
 {
     public class VMessForm : ServerForm
     {
-        public VMessForm(VMess? server = default)
+        public VMessForm(VMessServer? server = default)
         {
-            server ??= new VMess();
+            server ??= new VMessServer();
             Server = server;
             CreateTextBox("Sni", "ServerName(Sni)", s => true, s => server.ServerName = s, server.ServerName);
             CreateTextBox("UserId", "User ID", s => true, s => server.UserID = s, server.UserID);

Netch/Servers/VMess/VMessServer.cs

@@ -3,7 +3,7 @@ using Netch.Models;
 
 namespace Netch.Servers
 {
-    public class VMess : Server
+    public class VMessServer : Server
     {
         private string _tlsSecureType = VMessGlobal.TLSSecure[0];
 

Netch/Servers/VMess/VMessUtil.cs

@@ -5,8 +5,6 @@ using System.Text.Json;
 using System.Text.Json.Serialization;
 using Netch.Interfaces;
 using Netch.Models;
-using Netch.Servers.Form;
-using Netch.Servers.Models;
 using Netch.Utils;
 
 namespace Netch.Servers
@@ -23,11 +21,11 @@ namespace Netch.Servers
 
         public string[] UriScheme { get; } = { "vmess" };
 
-        public Type ServerType { get; } = typeof(VMess);
+        public Type ServerType { get; } = typeof(VMessServer);
 
         public void Edit(Server s)
         {
-            new VMessForm((VMess)s).ShowDialog();
+            new VMessForm((VMessServer)s).ShowDialog();
         }
 
         public void Create()
@@ -39,9 +37,9 @@ namespace Netch.Servers
         {
             if (Global.Settings.V2RayConfig.V2rayNShareLink)
             {
-                var server = (VMess)s;
+                var server = (VMessServer)s;
 
-                var vmessJson = JsonSerializer.Serialize(new V2rayNSharing
+                var vmessJson = JsonSerializer.Serialize(new V2rayNJObject
                     {
                         v = 2,
                         ps = server.Remark,
@@ -75,7 +73,7 @@ namespace Netch.Servers
 
         public IEnumerable<Server> ParseUri(string text)
         {
-            var data = new VMess();
+            var data = new VMessServer();
 
             string s;
             try
@@ -87,7 +85,7 @@ namespace Netch.Servers
                 return V2rayUtils.ParseVUri(text);
             }
 
-            V2rayNSharing vmess = JsonSerializer.Deserialize<V2rayNSharing>(s,
+            V2rayNJObject vmess = JsonSerializer.Deserialize<V2rayNJObject>(s,
                 new JsonSerializerOptions { NumberHandling = JsonNumberHandling.WriteAsString | JsonNumberHandling.AllowReadingFromString })!;
 
             data.Remark = vmess.ps;

Netch/Utils/Bandwidth.cs

@@ -5,8 +5,9 @@ using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.Diagnostics.Tracing.Parsers;
 using Microsoft.Diagnostics.Tracing.Session;
+using Microsoft.VisualStudio.Threading;
 using Netch.Controllers;
-using Netch.Models;
+using Netch.Enums;
 using Serilog;
 
 namespace Netch.Utils
@@ -52,69 +53,68 @@ namespace Netch.Utils
             var counterLock = new object();
             //int sent = 0;
 
-            //var processList = Process.GetProcessesByName(ProcessName).Select(p => p.Id).ToHashSet();
-            var instances = new List<Process>();
+            var processes = new List<Process>();
             switch (MainController.ServerController)
             {
                 case null:
                     break;
                 case Guard guard:
-                    instances.Add(guard.Instance);
-
+                    processes.Add(guard.Instance);
                     break;
             }
 
-            if (!instances.Any())
+            if (!processes.Any())
                 switch (MainController.ModeController)
                 {
                     case null:
                         break;
-                    case NFController:
-                        instances.Add(Process.GetCurrentProcess());
+                    case NFController or TUNController:
+                        processes.Add(Process.GetCurrentProcess());
                         break;
                     case Guard guard:
-                        instances.Add(guard.Instance);
+                        processes.Add(guard.Instance);
                         break;
                 }
 
-            var processList = instances.Select(instance => instance.Id).ToHashSet();
+            var pidHastSet = processes.Select(instance => instance.Id).ToHashSet();
 
-            Log.Information("流量统计进程: {Processes}", string.Join(',', instances.Select(v => $"({v.Id}){v.ProcessName}")));
+            Log.Information("流量统计进程: {Processes}", string.Join(',', processes.Select(v => $"({v.Id}){v.ProcessName}")));
 
             received = 0;
 
-            if (!instances.Any())
+            if (!processes.Any())
                 return;
 
             Global.MainForm.BandwidthState(true);
 
             Task.Run(() =>
-            {
-                tSession = new TraceEventSession("KernelAndClrEventsSession");
-                tSession.EnableKernelProvider(KernelTraceEventParser.Keywords.NetworkTCPIP);
-
-                //这玩意儿上传和下载得到的data是一样的:)
-                //所以暂时没办法区分上传下载流量
-                tSession.Source.Kernel.TcpIpRecv += data =>
                 {
-                    if (processList.Contains(data.ProcessID))
-                        lock (counterLock)
-                            received += (ulong)data.size;
+                    tSession = new TraceEventSession("KernelAndClrEventsSession");
+                    tSession.EnableKernelProvider(KernelTraceEventParser.Keywords.NetworkTCPIP);
 
-                    // Debug.WriteLine($"TcpIpRecv: {ToByteSize(data.size)}");
-                };
+                    //这玩意儿上传和下载得到的data是一样的:)
+                    //所以暂时没办法区分上传下载流量
+                    tSession.Source.Kernel.TcpIpRecv += data =>
+                    {
+                        if (pidHastSet.Contains(data.ProcessID))
+                            lock (counterLock)
+                                received += (ulong)data.size;
 
-                tSession.Source.Kernel.UdpIpRecv += data =>
-                {
-                    if (processList.Contains(data.ProcessID))
-                        lock (counterLock)
-                            received += (ulong)data.size;
+                        // Debug.WriteLine($"TcpIpRecv: {ToByteSize(data.size)}");
+                    };
 
-                    // Debug.WriteLine($"UdpIpRecv: {ToByteSize(data.size)}");
-                };
+                    tSession.Source.Kernel.UdpIpRecv += data =>
+                    {
+                        if (pidHastSet.Contains(data.ProcessID))
+                            lock (counterLock)
+                                received += (ulong)data.size;
 
-                tSession.Source.Process();
-            });
+                        // Debug.WriteLine($"UdpIpRecv: {ToByteSize(data.size)}");
+                    };
+
+                    tSession.Source.Process();
+                })
+                .Forget();
 
             while (Global.MainForm.State != State.Stopped)
             {

Netch/Utils/Configuration.cs

@@ -4,6 +4,7 @@ using System.Linq;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 using System.Threading.Tasks;
+using Microsoft.VisualStudio.Threading;
 using Netch.Models;
 using Serilog;
 
@@ -24,6 +25,8 @@ namespace Netch.Utils
 
         private const string BackupFileName = "settings.json.bak";
 
+        private static readonly AsyncReaderWriterLock _lock = new(null);
+
         private static readonly JsonSerializerOptions JsonSerializerOptions = Global.NewCustomJsonSerializerOptions();
 
         static Configuration()
@@ -42,11 +45,13 @@ namespace Netch.Utils
                     return;
                 }
 
-                if (await LoadAsyncCore(FileFullName))
+                await using var _ = await _lock.ReadLockAsync();
+
+                if (await LoadCoreAsync(FileFullName))
                     return;
 
                 Log.Information("尝试加载备份配置文件 {FileName}", BackupFileFullName);
-                await LoadAsyncCore(BackupFileFullName);
+                await LoadCoreAsync(BackupFileFullName);
             }
             catch (Exception e)
             {
@@ -55,19 +60,20 @@ namespace Netch.Utils
             }
         }
 
-        private static async ValueTask<bool> LoadAsyncCore(string filename)
+        private static async ValueTask<bool> LoadCoreAsync(string filename)
         {
             try
             {
-                var fs = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, true);
-                await using (fs.ConfigureAwait(false))
-                {
-                    var settings = (await JsonSerializer.DeserializeAsync<Setting>(fs, JsonSerializerOptions).ConfigureAwait(false))!;
+                Setting settings;
 
-                    CheckSetting(settings);
-                    Global.Settings = settings;
-                    return true;
+                await using (var fs = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, true))
+                {
+                    settings = (await JsonSerializer.DeserializeAsync<Setting>(fs, JsonSerializerOptions).ConfigureAwait(false))!;
                 }
+
+                CheckSetting(settings);
+                Global.Settings = settings;
+                return true;
             }
             catch (Exception e)
             {
@@ -93,18 +99,25 @@ namespace Netch.Utils
         /// </summary>
         public static async Task SaveAsync()
         {
+            if (_lock.IsWriteLockHeld)
+                return;
+
             try
             {
+                await using var _ = await _lock.WriteLockAsync();
+                Log.Verbose("Save Configuration");
+
                 if (!Directory.Exists(DataDirectoryFullName))
                     Directory.CreateDirectory(DataDirectoryFullName);
 
                 var tempFile = Path.Combine(DataDirectoryFullName, FileFullName + ".tmp");
-                var fileStream = new FileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.None, 4096, true);
-                await using (fileStream.ConfigureAwait(false))
+                await using (var fileStream = new FileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.None, 4096, true))
                 {
-                    await JsonSerializer.SerializeAsync(fileStream, Global.Settings, JsonSerializerOptions).ConfigureAwait(false);
+                    await JsonSerializer.SerializeAsync(fileStream, Global.Settings, JsonSerializerOptions);
                 }
 
+                await EnsureConfigFileExistsAsync();
+
                 File.Replace(tempFile, FileFullName, BackupFileFullName);
             }
             catch (Exception e)
@@ -112,5 +125,13 @@ namespace Netch.Utils
                 Log.Error(e, "保存配置异常");
             }
         }
+
+        private static async ValueTask EnsureConfigFileExistsAsync()
+        {
+            if (!File.Exists(FileFullName))
+            {
+                await File.Create(FileFullName).DisposeAsync();
+            }
+        }
     }
 }

Netch/Utils/DelayTestHelper.cs

@@ -0,0 +1,95 @@
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Timers;
+using Microsoft.VisualStudio.Threading;
+using Netch.Models;
+
+namespace Netch.Utils
+{
+    public static class DelayTestHelper
+    {
+        private static readonly Timer Timer;
+
+        private static readonly AsyncSemaphore Lock = new(1);
+
+        private static readonly AsyncSemaphore PoolLock = new(16);
+
+        public static readonly NumberRange Range = new(0, int.MaxValue / 1000);
+
+        private static bool _enabled = true;
+
+        static DelayTestHelper()
+        {
+            Timer = new Timer
+            {
+                Interval = 10000,
+                AutoReset = true
+            };
+
+            Timer.Elapsed += (_, _) => PerformTestAsync().Forget();
+        }
+
+        public static bool Enabled
+        {
+            get => _enabled;
+            set
+            {
+                _enabled = value;
+                UpdateTick();
+            }
+        }
+
+        /// <param name="waitFinish">if does not get lock, block until last release</param>
+        public static async Task PerformTestAsync(bool waitFinish = false)
+        {
+            if (Lock.CurrentCount == 0)
+            {
+                if (waitFinish)
+                    (await Lock.EnterAsync()).Dispose();
+
+                return;
+            }
+
+            using var _ = await Lock.EnterAsync();
+
+            try
+            {
+                var tasks = Global.Settings.Server.Select(async s =>
+                {
+                    using (await PoolLock.EnterAsync())
+                    {
+                        await s.PingAsync();
+                    }
+                });
+
+                await Task.WhenAll(tasks);
+            }
+            catch (Exception)
+            {
+                // ignored
+            }
+        }
+
+        public static void UpdateTick(bool performTestAtOnce = false)
+        {
+            UpdateTick(Global.Settings.DetectionTick, performTestAtOnce);
+        }
+
+        /// <param name="interval">interval(seconds), 0 disable, MaxValue <c>int.MaxValue/1000</c></param>
+        /// <param name="performTestAtOnce"></param>
+        private static void UpdateTick(int interval, bool performTestAtOnce = false)
+        {
+            Timer.Stop();
+
+            var enable = Enabled && interval > 0 && Range.InRange(interval);
+            if (enable)
+            {
+                Timer.Interval = interval * 1000;
+                Timer.Start();
+                if (performTestAtOnce)
+                    PerformTestAsync().Forget();
+            }
+        }
+    }
+}

Netch/Utils/DnsUtils.cs

@@ -1,8 +1,12 @@
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.Linq;
 using System.Net;
+using System.Net.Sockets;
+using System.Threading.Tasks;
+using Serilog;
 
 namespace Netch.Utils
 {
@@ -12,31 +16,64 @@ namespace Netch.Utils
         ///     缓存
         /// </summary>
         private static readonly Hashtable Cache = new();
+        private static readonly Hashtable Cache6 = new();
 
-        public static IPAddress? Lookup(string hostname, int timeout = 3000)
+        public static async Task<IPAddress?> LookupAsync(string hostname, AddressFamily inet = AddressFamily.Unspecified, int timeout = 3000)
         {
             try
             {
-                if (Cache.Contains(hostname))
-                    return Cache[hostname] as IPAddress;
+                var cacheResult = inet switch
+                {
+                    AddressFamily.Unspecified => (IPAddress?)(Cache[hostname] ?? Cache6[hostname]),
+                    AddressFamily.InterNetwork => (IPAddress?)Cache[hostname],
+                    AddressFamily.InterNetworkV6 => (IPAddress?)Cache6[hostname],
+                    _ => throw new ArgumentOutOfRangeException()
+                };
 
-                var task = Dns.GetHostAddressesAsync(hostname);
-                if (!task.Wait(timeout))
-                    return null;
+                if (cacheResult != null)
+                    return cacheResult;
 
-                if (task.Result.Length == 0)
-                    return null;
-
-                Cache.Add(hostname, task.Result[0]);
-
-                return task.Result[0];
+                return await LookupNoCacheAsync(hostname, inet, timeout);
             }
-            catch (Exception)
+            catch (Exception e)
             {
+                Log.Verbose(e, "Lookup hostname {Hostname} failed", hostname);
                 return null;
             }
         }
 
+        private static async Task<IPAddress?> LookupNoCacheAsync(string hostname, AddressFamily inet = AddressFamily.Unspecified, int timeout = 3000)
+        {
+            using var task = Dns.GetHostAddressesAsync(hostname);
+            using var resTask = await Task.WhenAny(task, Task.Delay(timeout)).ConfigureAwait(false);
+
+            if (resTask == task)
+            {
+                var addresses = await task;
+
+                var result = addresses.FirstOrDefault(i => inet == AddressFamily.Unspecified || inet == i.AddressFamily);
+                if (result == null)
+                    return null;
+
+                switch (result.AddressFamily)
+                {
+                    case AddressFamily.InterNetwork:
+                        Cache.Add(hostname, result);
+                        break;
+                    case AddressFamily.InterNetworkV6:
+                        Cache6.Add(hostname, result);
+                        break;
+                    default:
+                        Trace.Assert(false);
+                        break;
+                }
+
+                return result;
+            }
+
+            return null;
+        }
+
         /// <summary>
         ///     查询
         /// </summary>
@@ -45,6 +82,7 @@ namespace Netch.Utils
         public static void ClearCache()
         {
             Cache.Clear();
+            Cache6.Clear();
         }
 
         public static IEnumerable<string> Split(string dns)

Netch/Utils/Firewall.cs

@@ -16,7 +16,7 @@ namespace Netch.Utils
         /// </summary>
         public static void AddNetchFwRules()
         {
-            if (!FirewallWAS.IsSupported)
+            if (!FirewallWAS.IsLocallySupported)
             {
                 Log.Warning("不支持防火墙");
                 return;
@@ -47,7 +47,7 @@ namespace Netch.Utils
         /// </summary>
         public static void RemoveNetchFwRules()
         {
-            if (!FirewallWAS.IsSupported)
+            if (!FirewallWAS.IsLocallySupported)
                 return;
 
             try

Netch/Utils/ModeHelper.cs

@@ -6,8 +6,6 @@ using Netch.Controllers;
 using Netch.Enums;
 using Netch.Interfaces;
 using Netch.Models;
-using Netch.Servers;
-using Netch.Servers.Shadowsocks;
 using Serilog;
 
 namespace Netch.Utils
@@ -126,38 +124,20 @@ namespace Netch.Utils
                 File.Delete(mode.FullName);
         }
 
-        public static bool SkipServerController(Server server, Mode mode)
-        {
-            switch (mode.Type)
-            {
-                case ModeType.Process:
-                    return server switch
-                    {
-                        Socks5 => true,
-                        Shadowsocks shadowsocks when !shadowsocks.HasPlugin() && Global.Settings.Redirector.RedirectorSS => true,
-                        _ => false
-                    };
-                case ModeType.ProxyRuleIPs:
-                case ModeType.BypassRuleIPs:
-                    return server is Socks5;
-                default:
-                    return false;
-            }
-        }
-
-        public static IModeController GetModeControllerByType(ModeType type, out ushort? port, out string portName)
+        public static (IModeController, ModeFeature) GetModeControllerByType(ModeType type, out ushort? port, out string portName)
         {
             port = null;
             portName = string.Empty;
             switch (type)
             {
                 case ModeType.Process:
-                    return new NFController();
+                    return (new NFController(), ModeFeature.SupportIPv6 | ModeFeature.SupportSocks5Auth);
                 case ModeType.ProxyRuleIPs:
+                    return (new TUNController(), ModeFeature.SupportSocks5Auth);
                 case ModeType.BypassRuleIPs:
-                    return new TUNController();
+                    return (new TUNController(), ModeFeature.SupportSocks5Auth);
                 case ModeType.Pcap2Socks:
-                    return new PcapController();
+                    return (new PcapController(), 0);
                 default:
                     Log.Error("未知模式类型");
                     throw new MessageException("未知模式类型");

Netch/Utils/NetworkInterfaceUtils.cs

@@ -5,9 +5,8 @@ using System.Management;
 using System.Net;
 using System.Net.NetworkInformation;
 using System.Net.Sockets;
-using System.Threading.Tasks;
 using Netch.Models;
-using Vanara.PInvoke;
+using Windows.Win32;
 
 namespace Netch.Utils
 {
@@ -15,14 +14,18 @@ namespace Netch.Utils
     {
         public static NetworkInterface GetBest(AddressFamily addressFamily = AddressFamily.InterNetwork)
         {
-            var ipAddress = addressFamily switch
+            string ipAddress;
+            if (addressFamily == AddressFamily.InterNetwork)
             {
-                AddressFamily.InterNetwork => "114.114.114.114",
-                AddressFamily.InterNetworkV6 => throw new NotImplementedException(),
-                _ => throw new ArgumentOutOfRangeException(nameof(addressFamily), addressFamily, null)
-            };
+                ipAddress = "114.114.114.114";
+            }
+            else
+            {
+                Trace.Assert(addressFamily == AddressFamily.InterNetworkV6);
+                throw new NotImplementedException();
+            }
 
-            if (IpHlpApi.GetBestRoute(BitConverter.ToUInt32(IPAddress.Parse(ipAddress).GetAddressBytes(), 0), 0, out var route) != 0)
+            if (PInvoke.GetBestRoute(BitConverter.ToUInt32(IPAddress.Parse(ipAddress).GetAddressBytes(), 0), 0, out var route) != 0)
                 throw new MessageException("GetBestRoute 搜索失败");
 
             return Get((int)route.dwForwardIfIndex);

Netch/Utils/PortHelper.cs

@@ -1,12 +1,15 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Diagnostics;
 using System.Linq;
 using System.Net.NetworkInformation;
+using System.Net.Sockets;
+using System.Runtime.InteropServices;
+using Windows.Win32;
+using Windows.Win32.NetworkManagement.IpHelper;
 using Netch.Models;
 using Serilog;
-using static Vanara.PInvoke.IpHlpApi;
-using static Vanara.PInvoke.Ws2_32;
 
 namespace Netch.Utils
 {
@@ -29,14 +32,38 @@ namespace Netch.Utils
             }
         }
 
-        public static IEnumerable<Process> GetProcessByUsedTcpPort(ushort port)
+        internal static IEnumerable<Process> GetProcessByUsedTcpPort(ushort port, AddressFamily inet = AddressFamily.InterNetwork)
         {
             if (port == 0)
                 throw new ArgumentOutOfRangeException();
 
-            var row = GetTcpTable2().Where(r => ntohs((ushort)r.dwLocalPort) == port).Where(r => r.dwOwningPid is not (0 or 4));
+            if (inet != AddressFamily.InterNetwork)
+                Trace.Assert(inet == AddressFamily.InterNetworkV6);
 
-            return row.Select(r => Process.GetProcessById((int)r.dwOwningPid));
+            var process = new List<Process>();
+            unsafe
+            {
+                uint err;
+                uint size = 0;
+                PInvoke.GetExtendedTcpTable(default, ref size, false, (uint)inet, TCP_TABLE_CLASS.TCP_TABLE_OWNER_PID_LISTENER, 0); // get size
+                var tcpTable = (MIB_TCPTABLE_OWNER_PID*)Marshal.AllocHGlobal((int)size);
+
+                if ((err = PInvoke.GetExtendedTcpTable(tcpTable, ref size, false, (uint)inet, TCP_TABLE_CLASS.TCP_TABLE_OWNER_PID_LISTENER, 0)) != 0)
+                    throw new Win32Exception((int)err);
+
+                for (var i = 0; i < tcpTable -> dwNumEntries; i++)
+                {
+                    var row = tcpTable -> table.ReadOnlyItemRef(i);
+
+                    if (row.dwOwningPid is 0 or 4)
+                        continue;
+
+                    if (PInvoke.ntohs((ushort)row.dwLocalPort) == port)
+                        process.Add(Process.GetProcessById((int)row.dwOwningPid));
+                }
+            }
+
+            return process;
         }
 
         private static void GetReservedPortRange(PortType portType, ref List<NumberRange> targetList)
@@ -109,7 +136,8 @@ namespace Netch.Utils
 
                     break;
                 default:
-                    throw new ArgumentOutOfRangeException(nameof(type), type, null);
+                    Trace.Assert(false);
+                    return;
             }
         }
 
@@ -135,7 +163,8 @@ namespace Netch.Utils
 
                     break;
                 default:
-                    throw new ArgumentOutOfRangeException(nameof(type), type, null);
+                    Trace.Assert(false);
+                    return;
             }
         }
 
@@ -166,8 +195,8 @@ namespace Netch.Utils
     [Flags]
     public enum PortType
     {
-        TCP = 0x01,
-        UDP = 0x10,
+        TCP = 0b_01,
+        UDP = 0b_10,
         Both = TCP | UDP
     }
 

Netch/Utils/RouteUtils.cs

@@ -28,6 +28,14 @@ namespace Netch.Utils
 
         public static bool CreateRoute(NetRoute o)
         {
+            Log.Verbose("CreateRoute {InterNetwork} {Address} {Cidr} {Gateway} {Interface} {Metric}",
+                AddressFamily.InterNetwork,
+                o.Network,
+                o.Cidr,
+                o.Gateway,
+                (ulong)o.InterfaceIndex,
+                o.Metric);
+
             return RouteHelper.CreateRoute(AddressFamily.InterNetwork, o.Network, o.Cidr, o.Gateway, (ulong)o.InterfaceIndex, o.Metric);
         }
 
@@ -41,7 +49,7 @@ namespace Netch.Utils
         {
             if (!TryParseIPNetwork(rule, out var network, out var cidr))
             {
-                Log.Warning("invalid rule {Rule}",rule);
+                Log.Warning("invalid rule {Rule}", rule);
                 return false;
             }
 
@@ -50,6 +58,14 @@ namespace Netch.Utils
 
         public static bool DeleteRoute(NetRoute o)
         {
+            Log.Verbose("DeleteRoute {InterNetwork} {Address} {Cidr} {Gateway} {Interface} {Metric}",
+                AddressFamily.InterNetwork,
+                o.Network,
+                o.Cidr,
+                o.Gateway,
+                (ulong)o.InterfaceIndex,
+                o.Metric);
+
             return RouteHelper.DeleteRoute(AddressFamily.InterNetwork, o.Network, o.Cidr, o.Gateway, (ulong)o.InterfaceIndex, o.Metric);
         }
 

Netch/Utils/ServerConverterWithTypeDiscriminator.cs

@@ -11,18 +11,9 @@ namespace Netch.Utils
 
         public override Server Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            var jsonElement = JsonSerializer.Deserialize<JsonElement>(ref reader)!;
-
-            try
-            {
-                var type = ServerHelper.GetTypeByTypeName(jsonElement.GetProperty("Type").GetString()!);
-                return (Server)JsonSerializer.Deserialize(jsonElement.GetRawText(), type)!;
-            }
-            catch
-            {
-                // Unsupported Server Type
-                return JsonSerializer.Deserialize<Server>(jsonElement.GetRawText(), new JsonSerializerOptions())!;
-            }
+            var jsonElement = JsonSerializer.Deserialize<JsonElement>(ref reader);
+            var type = ServerHelper.GetTypeByTypeName(jsonElement.GetProperty("Type").GetString()!);
+            return (Server)JsonSerializer.Deserialize(jsonElement.GetRawText(), type)!;
         }
 
         public override void Write(Utf8JsonWriter writer, Server value, JsonSerializerOptions options)

Netch/Utils/ServerHelper.cs

@@ -2,11 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
-using System.Threading;
-using System.Threading.Tasks;
 using Netch.Interfaces;
-using Netch.Models;
-using Timer = System.Timers.Timer;
 
 namespace Netch.Utils
 {
@@ -18,115 +14,24 @@ namespace Netch.Utils
                 .GetExportedTypes()
                 .Where(type => type.GetInterfaces().Contains(typeof(IServerUtil)));
 
-            ServerUtils = serversUtilsTypes.Select(t => (IServerUtil)Activator.CreateInstance(t)!).OrderBy(util => util.Priority);
+            ServerUtilDictionary = serversUtilsTypes.Select(t => (IServerUtil)Activator.CreateInstance(t)!).ToDictionary(util => util.TypeName);
+        }
+
+        public static Dictionary<string, IServerUtil> ServerUtilDictionary { get; }
+
+        public static IServerUtil GetUtilByTypeName(string typeName)
+        {
+            return ServerUtilDictionary.GetValueOrDefault(typeName) ?? throw new NotSupportedException("Specified server type is not supported.");
+        }
+
+        public static IServerUtil? GetUtilByUriScheme(string scheme)
+        {
+            return ServerUtilDictionary.Values.SingleOrDefault(i => i.UriScheme.Any(s => s.Equals(scheme)));
         }
 
         public static Type GetTypeByTypeName(string typeName)
         {
-            return ServerUtils.Single(i => i.TypeName.Equals(typeName)).ServerType;
+            return GetUtilByTypeName(typeName).ServerType;
         }
-
-        #region Delay
-
-        public static class DelayTestHelper
-        {
-            private static readonly Timer Timer;
-            private static readonly object TestAllLock = new();
-
-            public static readonly NumberRange Range = new(0, int.MaxValue / 1000);
-
-            static DelayTestHelper()
-            {
-                Timer = new Timer
-                {
-                    Interval = 10000,
-                    AutoReset = true
-                };
-
-                Timer.Elapsed += (_, _) => TestAllDelay();
-            }
-
-            public static bool Enabled
-            {
-                get => Timer.Enabled;
-                set
-                {
-                    if (!ValueIsEnabled(Global.Settings.DetectionTick))
-                        return;
-
-                    Timer.Enabled = value;
-                }
-            }
-
-            public static int Interval => (int)(Timer.Interval / 1000);
-
-            private static bool ValueIsEnabled(int value)
-            {
-                return value != 0 && Range.InRange(value);
-            }
-
-            public static event EventHandler? TestDelayFinished;
-
-            public static void TestAllDelay()
-            {
-                if (!Monitor.TryEnter(TestAllLock))
-                    return;
-
-                try
-                {
-                    Parallel.ForEach(Global.Settings.Server, new ParallelOptions { MaxDegreeOfParallelism = 16 }, server => { server.Test(); });
-                    TestDelayFinished?.Invoke(null, new EventArgs());
-                }
-                catch (Exception)
-                {
-                    // ignored
-                }
-                finally
-                {
-                    Monitor.Exit(TestAllLock);
-                }
-            }
-
-            public static void UpdateInterval()
-            {
-                Timer.Stop();
-
-                if (!ValueIsEnabled(Global.Settings.DetectionTick))
-                    return;
-
-                Timer.Interval = Global.Settings.DetectionTick * 1000;
-                Task.Run(TestAllDelay);
-                Timer.Start();
-            }
-        }
-
-        #endregion
-
-        #region Handler
-
-        public static readonly IEnumerable<IServerUtil> ServerUtils;
-
-        public static IServerUtil GetUtilByTypeName(string typeName)
-        {
-            if (string.IsNullOrEmpty(typeName))
-                throw new ArgumentNullException();
-
-            return ServerUtils.Single(i => i.TypeName.Equals(typeName));
-        }
-
-        public static IServerUtil GetUtilByFullName(string fullName)
-        {
-            if (string.IsNullOrEmpty(fullName))
-                throw new ArgumentNullException();
-
-            return ServerUtils.Single(i => i.FullName.Equals(fullName));
-        }
-
-        public static IServerUtil? GetUtilByUriScheme(string typeName)
-        {
-            return ServerUtils.SingleOrDefault(i => i.UriScheme.Any(s => s.Equals(typeName)));
-        }
-
-        #endregion
     }
 }

Netch/Utils/ShareLink.cs

@@ -5,8 +5,7 @@ using System.Linq;
 using System.Text;
 using System.Text.Json;
 using Netch.Models;
-using Netch.Servers.Shadowsocks;
-using Netch.Servers.Shadowsocks.Models;
+using Netch.Servers;
 using Serilog;
 
 namespace Netch.Utils
@@ -33,7 +32,7 @@ namespace Netch.Utils
 
             try
             {
-                list.AddRange(JsonSerializer.Deserialize<List<ShadowsocksConfig>>(text)!.Select(server => new Shadowsocks
+                list.AddRange(JsonSerializer.Deserialize<List<ShadowsocksConfig>>(text)!.Select(server => new ShadowsocksServer
                 {
                     Hostname = server.server,
                     Port = server.server_port,

Netch/Utils/Socks5ServerTestUtils.cs

@@ -0,0 +1,110 @@
+using System;
+using System.Diagnostics;
+using System.Net;
+using System.Threading;
+using System.Threading.Tasks;
+using Netch.Models;
+using Netch.Servers;
+using Socks5.Models;
+using STUN.Client;
+using STUN.Enums;
+using STUN.Proxy;
+using STUN.StunResult;
+
+namespace Netch.Utils
+{
+    public static class Socks5ServerTestUtils
+    {
+        public static async Task<NatTypeTestResult> DiscoveryNatTypeAsync(Socks5Server socks5, CancellationToken ctx = default)
+        {
+            var stunServer = Global.Settings.STUN_Server;
+            var port = (ushort)Global.Settings.STUN_Server_Port;
+            var local = new IPEndPoint(IPAddress.Any, 0);
+
+            var socks5Option = new Socks5CreateOption
+            {
+                Address = await DnsUtils.LookupAsync(socks5.Hostname),
+                Port = socks5.Port,
+                UsernamePassword = new UsernamePassword
+                {
+                    UserName = socks5.Username,
+                    Password = socks5.Password
+                }
+            };
+
+            var ip = await DnsUtils.LookupAsync(stunServer);
+            if (ip == null)
+            {
+                return new NatTypeTestResult { Result = "Wrong STUN Server!" };
+            }
+
+            using IUdpProxy proxy = ProxyFactory.CreateProxy(ProxyType.Socks5, new IPEndPoint(IPAddress.Loopback, 0), socks5Option);
+            using var client = new StunClient5389UDP(new IPEndPoint(ip, port), local, proxy);
+
+            await client.ConnectProxyAsync(ctx);
+            try
+            {
+                await client.QueryAsync(ctx);
+            }
+            finally
+            {
+                await client.CloseProxyAsync(ctx);
+            }
+
+            var res = client.State;
+            var result = GetSimpleResult(res);
+
+            return new NatTypeTestResult
+            {
+                Result = result,
+                LocalEnd = res.LocalEndPoint?.ToString(),
+                PublicEnd = res.PublicEndPoint?.ToString()
+            };
+        }
+
+        private static string GetSimpleResult(StunResult5389 res)
+        {
+            switch (res.BindingTestResult, res.MappingBehavior, res.FilteringBehavior)
+            {
+                case (BindingTestResult.Fail, _, _):
+                    return "NoUDP";
+                case (not BindingTestResult.Success, _, _):
+                    return res.BindingTestResult.ToString();
+                case (_, MappingBehavior.Direct or MappingBehavior.EndpointIndependent, FilteringBehavior.EndpointIndependent):
+                    return "1";
+                case (_, MappingBehavior.Direct or MappingBehavior.EndpointIndependent, _):
+                    return "2";
+                case (_, MappingBehavior.AddressDependent or MappingBehavior.AddressAndPortDependent, _):
+                    return "3";
+                case (_, MappingBehavior.Fail, _):
+                    return MappingBehavior.Fail.ToString();
+                default:
+                    return res.FilteringBehavior.ToString();
+            }
+        }
+
+        public static async Task<int?> HttpConnectAsync(Socks5Server socks5, CancellationToken ctx)
+        {
+            var socks5Option = new Socks5CreateOption
+            {
+                Address = await DnsUtils.LookupAsync(socks5.Hostname),
+                Port = socks5.Port,
+                UsernamePassword = new UsernamePassword
+                {
+                    UserName = socks5.Username,
+                    Password = socks5.Password
+                }
+            };
+
+            var stopwatch = Stopwatch.StartNew();
+
+            var result = await Socks5.Utils.Socks5TestUtils.Socks5ConnectAsync(socks5Option, token: ctx);
+
+            stopwatch.Stop();
+            if (result)
+                return Convert.ToInt32(stopwatch.Elapsed.TotalMilliseconds);
+
+            return null;
+        }
+    }
+}

Netch/Utils/StringExtension.cs

@@ -73,9 +73,9 @@ namespace Netch.Utils
             return value.Split(separator, StringSplitOptions.RemoveEmptyEntries);
         }
 
-        public static string? ValueOrDefault(this string? value)
+        public static string? ValueOrDefault(this string? value, string? defaultValue = default)
         {
-            return string.IsNullOrWhiteSpace(value) ? null : value;
+            return string.IsNullOrWhiteSpace(value) ? defaultValue : value;
         }
 
         public static string[]? SplitOrDefault(this string? value)

Netch/Utils/Subscription.cs

@@ -1,9 +1,9 @@
-using Netch.Models;
 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net;
 using System.Threading.Tasks;
+using Netch.Models;
 using Serilog;
 
 namespace Netch.Utils
@@ -14,10 +14,10 @@ namespace Netch.Utils
 
         public static async Task UpdateServersAsync(string? proxyServer = default)
         {
-            await Task.WhenAll(Global.Settings.SubscribeLink.Select(item => Task.Run(() => UpdateServer(item, proxyServer))).ToArray());
+            await Task.WhenAll(Global.Settings.SubscribeLink.Select(item => UpdateServerCoreAsync(item, proxyServer)));
         }
 
-        public static void UpdateServer(SubscribeLink item, string? proxyServer)
+        private static async Task UpdateServerCoreAsync(SubscribeLink item, string? proxyServer)
         {
             try
             {
@@ -34,11 +34,11 @@ namespace Netch.Utils
 
                 List<Server> servers;
 
-                var result = WebUtil.DownloadString(request, out var rep);
-                if (rep.StatusCode == HttpStatusCode.OK)
+                var (code, result) = await WebUtil.DownloadStringAsync(request);
+                if (code == HttpStatusCode.OK)
                     servers = ShareLink.ParseText(result);
                 else
-                    throw new Exception($"{item.Remark} Response Status Code: {rep.StatusCode}");
+                    throw new Exception($"{item.Remark} Response Status Code: {code}");
 
                 foreach (var server in servers)
                     server.Group = item.Remark;

Netch/Utils/SystemInfo.cs

@@ -13,14 +13,14 @@ namespace Netch.Utils
             var mc = new ManagementClass("Win32_SystemDriver");
             foreach (var obj in mc.GetInstances().Cast<ManagementObject>())
             {
-                if (!(bool) obj["Started"])
+                if (!(bool)obj["Started"])
                     continue;
 
                 var path = obj["PathName"].ToString();
                 if (path == null)
                     continue;
 
-                var vendorExclude = new[] {"microsoft", "intel", "amd", "nvidia", "realtek"};
+                var vendorExclude = new[] { "microsoft", "intel", "amd", "nvidia", "realtek" };
                 var vendorName = FileVersionInfo.GetVersionInfo(path).LegalCopyright ?? string.Empty;
                 if (!allDriver && vendorExclude.Any(s => vendorName.Contains(s, StringComparison.OrdinalIgnoreCase)))
                     continue;
@@ -32,6 +32,7 @@ namespace Netch.Utils
         public static IEnumerable<string> Processes(bool mask)
         {
             var hashset = new HashSet<string>();
+            var windowsFolder = Environment.GetFolderPath(Environment.SpecialFolder.Windows);
             foreach (var process in Process.GetProcesses())
             {
                 try
@@ -39,8 +40,10 @@ namespace Netch.Utils
                     if (process.Id is 0 or 4)
                         continue;
 
-                    if (process.MainModule!.FileName!.StartsWith(Environment.GetFolderPath(Environment.SpecialFolder.Windows), StringComparison.OrdinalIgnoreCase))
+                    // ! NT Kernel & System 
+                    if (process.MainModule!.FileName!.StartsWith(windowsFolder, StringComparison.OrdinalIgnoreCase))
                         continue;
+
                     var path = process.MainModule.FileName;
 
                     if (mask)

Netch/Utils/TplExtensions.cs

@@ -1,11 +0,0 @@
-using System.Threading.Tasks;
-
-namespace Netch.Utils
-{
-    public static class TplExtensions
-    {
-        public static void Forget(this Task? task)
-        {
-        }
-    }
-}

Netch/Utils/Utils.cs

@@ -57,33 +57,34 @@ namespace Netch.Utils
             return timeout;
         }
 
-        public static int ICMPing(IPAddress ip, int timeout = 1000)
+        public static async Task<int> ICMPingAsync(IPAddress ip, int timeout = 1000)
         {
-            var reply = new Ping().Send(ip, timeout);
+            var reply = await new Ping().SendPingAsync(ip, timeout);
 
-            if (reply?.Status == IPStatus.Success)
+            if (reply.Status == IPStatus.Success)
                 return Convert.ToInt32(reply.RoundtripTime);
 
             return timeout;
         }
 
-        public static string GetCityCode(string Hostname)
+        public static async Task<string> GetCityCodeAsync(string address)
         {
-            if (Hostname.Contains(":"))
-                Hostname = Hostname.Split(':')[0];
+            var i = address.IndexOf(':');
+            if (i != -1)
+                address = address[..i];
 
             string? country = null;
             try
             {
                 var databaseReader = new DatabaseReader("bin\\GeoLite2-Country.mmdb");
 
-                if (IPAddress.TryParse(Hostname, out _))
+                if (IPAddress.TryParse(address, out _))
                 {
-                    country = databaseReader.Country(Hostname).Country.IsoCode;
+                    country = databaseReader.Country(address).Country.IsoCode;
                 }
                 else
                 {
-                    var dnsResult = DnsUtils.Lookup(Hostname);
+                    var dnsResult = await DnsUtils.LookupAsync(address);
 
                     if (dnsResult != null)
                         country = databaseReader.Country(dnsResult).Country.IsoCode;

Netch/Utils/WebUtil.cs

@@ -3,6 +3,7 @@ using System.IO;
 using System.Net;
 using System.Text;
 using System.Threading.Tasks;
+using Microsoft.VisualStudio.Threading;
 
 namespace Netch.Utils
 {
@@ -37,9 +38,9 @@ namespace Netch.Utils
         /// <returns></returns>
         public static async Task<byte[]> DownloadBytesAsync(HttpWebRequest req)
         {
-            using var webResponse = req.GetResponseAsync();
+            using var webResponse = await req.GetResponseAsync();
             await using var memoryStream = new MemoryStream();
-            await using var input = webResponse.Result.GetResponseStream();
+            await using var input = webResponse.GetResponseStream();
 
             await input.CopyToAsync(memoryStream);
             return memoryStream.ToArray();
@@ -52,14 +53,14 @@ namespace Netch.Utils
         /// <param name="rep"></param>
         /// <param name="encoding">编码，默认UTF-8</param>
         /// <returns></returns>
-        public static string DownloadString(HttpWebRequest req, out HttpWebResponse rep, Encoding? encoding = null)
+        public static (HttpStatusCode, string) DownloadString(HttpWebRequest req, Encoding? encoding = null)
         {
             encoding ??= Encoding.UTF8;
-            rep = (HttpWebResponse)req.GetResponse();
+            using var rep = (HttpWebResponse)req.GetResponse();
             using var responseStream = rep.GetResponseStream();
             using var streamReader = new StreamReader(responseStream, encoding);
 
-            return streamReader.ReadToEnd();
+            return (rep.StatusCode, streamReader.ReadToEnd());
         }
 
         /// <summary>
@@ -68,14 +69,14 @@ namespace Netch.Utils
         /// <param name="req"></param>
         /// <param name="encoding">编码，默认UTF-8</param>
         /// <returns></returns>
-        public static async Task<string> DownloadStringAsync(HttpWebRequest req, Encoding? encoding = null)
+        public static async Task<(HttpStatusCode, string)> DownloadStringAsync(HttpWebRequest req, Encoding? encoding = null)
         {
             encoding ??= Encoding.UTF8;
-            using var webResponse = await req.GetResponseAsync();
+            using var webResponse = (HttpWebResponse)await req.GetResponseAsync();
             await using var responseStream = webResponse.GetResponseStream();
             using var streamReader = new StreamReader(responseStream, encoding);
 
-            return await streamReader.ReadToEndAsync();
+            return (webResponse.StatusCode, await streamReader.ReadToEndAsync());
         }
 
         public static async Task DownloadFileAsync(string address, string fileFullPath, IProgress<int>? progress = null)
@@ -91,7 +92,7 @@ namespace Netch.Utils
             using (var downloadTask = input.CopyToAsync(fileStream))
             {
                 if (progress != null)
-                    ReportProgress(webResponse.ContentLength, downloadTask, fileStream, progress, 200).Forget();
+                    ReportProgressAsync(webResponse.ContentLength, downloadTask, fileStream, progress, 200).Forget();
 
                 await downloadTask;
             }
@@ -99,7 +100,7 @@ namespace Netch.Utils
             progress?.Report(100);
         }
 
-        private static async Task ReportProgress(long total, IAsyncResult downloadTask, Stream stream, IProgress<int> progress, int interval)
+        private static async Task ReportProgressAsync(long total, IAsyncResult downloadTask, Stream stream, IProgress<int> progress, int interval)
         {
             var n = 0;
             while (!downloadTask.IsCompleted)

Netch/runtimeconfig.template.json

@@ -0,0 +1,3 @@
+{
+    "rollForward": "Major"
+}

UnitTest/.gitignore

@@ -0,0 +1,3 @@
+/bin
+/obj
+/*.csproj.user

UnitTest/UnitTest.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  
+  <Import Project="..\common.props" />
+
+  <PropertyGroup>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.11.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.2.6" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.2.6" />
+    <PackageReference Include="coverlet.collector" Version="3.1.0">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\Netch\Netch.csproj" />
+  </ItemGroup>
+
+</Project>

UnitTest/UnitTest1.cs

@@ -0,0 +1,13 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace UnitTest
+{
+    [TestClass]
+    public class UnitTest1
+    {
+        [TestMethod]
+        public void TestMethod1()
+        {
+        }
+    }
+}