replace listener by async

FastTunnel.Client/appsettings.json

@@ -20,7 +20,7 @@
         "LocalIp": "127.0.0.1",
 
         // 站点监听的端口号
-        "LocalPort": 80,
+        "LocalPort": 8001,
 
         // 子域名, 访问本站点时的url为 http://{SubDomain}.{Domain}:{ProxyPort_HTTP}/
         "SubDomain": "test" // test.test.cc

FastTunnel.Core/AsyncListener.cs

@@ -4,6 +4,8 @@ using System.Collections.Generic;
 using System.Net;
 using System.Net.Sockets;
 using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
 
 namespace FastTunnel.Core
 {
@@ -15,10 +17,13 @@ namespace FastTunnel.Core
 
         public int Port { get; set; }
 
-        Action<Socket, T> handler;
+        Action<Socket, T> receiveClient;
         Socket listener;
         T _data;
 
+        // Thread signal.  
+        public ManualResetEvent allDone = new ManualResetEvent(false);
+
         public AsyncListener(string ip, int port, ILogger<object> logerr, T data)
         {
             _logerr = logerr;
@@ -37,6 +42,10 @@ namespace FastTunnel.Core
         {
             // example https://docs.microsoft.com/en-us/dotnet/framework/network-programming/asynchronous-server-socket-example
             // Bind the socket to the local endpoint and listen for incoming connections.  
+            this.receiveClient = receiveClient;
+
+            Task.Run(() =>
+            {
                 try
                 {
                     listener.Listen(100);
@@ -44,16 +53,14 @@ namespace FastTunnel.Core
                     while (true)
                     {
                         // Set the event to nonsignaled state.  
-                    //allDone.Reset();
+                        allDone.Reset();
 
                         // Start an asynchronous socket to listen for connections.  
                         Console.WriteLine("Waiting for a connection...");
-                    listener.BeginAccept(
+                        listener.BeginAccept(new AsyncCallback(AcceptCallback), listener);
-                        new AsyncCallback(AcceptCallback),
-                        listener);
 
                         // Wait until a connection is made before continuing.
-                    //allDone.WaitOne();
+                        allDone.WaitOne();
                     }
 
                 }
@@ -61,12 +68,13 @@ namespace FastTunnel.Core
                 {
                     Console.WriteLine(e.ToString());
                 }
+            });
         }
 
         void AcceptCallback(IAsyncResult ar)
         {
             // Signal the main thread to continue.  
-            //allDone.Set();
+            allDone.Set();
 
             // Get the socket that handles the client request.  
             Socket listener = (Socket)ar.AsyncState;
@@ -75,7 +83,10 @@ namespace FastTunnel.Core
             // Create the state object.  
             StateObject state = new StateObject();
             state.workSocket = handler;
-            handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReadCallback), state);
+
+            receiveClient.Invoke(handler, _data);
+
+            //handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReadCallback), state);
         }
 
         void ReadCallback(IAsyncResult ar)
@@ -93,8 +104,7 @@ namespace FastTunnel.Core
             if (bytesRead > 0)
             {
                 // There  might be more data, so store the data received so far.  
-                state.sb.Append(Encoding.ASCII.GetString(
+                state.sb.Append(Encoding.ASCII.GetString(state.buffer, 0, bytesRead));
-                    state.buffer, 0, bytesRead));
 
                 // Check for end-of-file tag. If it is not there, read
                 // more data.  
@@ -106,6 +116,7 @@ namespace FastTunnel.Core
                     Console.WriteLine("Read {0} bytes from socket. \n Data : {1}",
                         content.Length, content);
                     // Echo the data back to the client.  
+
                     Send(handler, content);
                 }
                 else
@@ -136,16 +147,27 @@ namespace FastTunnel.Core
                 // Complete sending the data to the remote device.
                 int bytesSent = handler.EndSend(ar);
                 Console.WriteLine("Sent {0} bytes to client.", bytesSent);
-
-                handler.Shutdown(SocketShutdown.Both);
-                handler.Close();
-
             }
             catch (Exception e)
             {
                 Console.WriteLine(e.ToString());
             }
         }
+
+        public void ShutdownAndClose()
+        {
+            try
+            {
+                listener.Shutdown(SocketShutdown.Both);
+            }
+            catch (Exception ex)
+            {
+            }
+            finally
+            {
+                listener.Close();
+            }
+        }
     }
 
     public class StateObject

FastTunnel.Core/Core/SuiDaoServer.cs

@@ -51,14 +51,14 @@ namespace FastTunnel.Core.Core
 
         private void ListenFastTunnelClient()
         {
-            IListener<object> listener = new Listener<object>(_serverSettings.BindAddr, _serverSettings.BindPort, _logger, null);
+            IListener<object> listener = new AsyncListener<object>(_serverSettings.BindAddr, _serverSettings.BindPort, _logger, null);
             listener.Listen(ReceiveClient);
             _logger.LogDebug($"监听客户端 -> {_serverSettings.BindAddr}:{_serverSettings.BindPort}");
         }
 
         private void ListenCustomer()
         {
-            var listener = new Listener<object>(_serverSettings.BindAddr, _serverSettings.ProxyPort_HTTP, _logger, null);
+            var listener = new AsyncListener<object>(_serverSettings.BindAddr, _serverSettings.ProxyPort_HTTP, _logger, null);
             listener.Listen(ReceiveCustomer);
 
             _logger.LogDebug($"监听HTTP -> {_serverSettings.BindAddr}:{_serverSettings.ProxyPort_HTTP}");

FastTunnel.Core/FastTunnel.Core.csproj

@@ -11,6 +11,8 @@
     <Compile Remove="Core\SuiDaoServer.cs.BASE.cs" />
     <Compile Remove="Core\SuiDaoServer.cs.LOCAL.cs" />
     <Compile Remove="Core\SuiDaoServer.cs.REMOTE.cs" />
+    <Compile Remove="Listener.cs" />
+    <Compile Remove="Server.cs" />
   </ItemGroup>
 
   <ItemGroup>
@@ -25,6 +27,7 @@
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
     <PackageReference Include="NLog" Version="4.6.8" />
     <PackageReference Include="NLog.Extensions.Logging" Version="1.6.1" />
+    <PackageReference Include="System.Private.ServiceModel" Version="4.7.0" />
   </ItemGroup>
 
   <ItemGroup>

FastTunnel.Core/Handlers/Server/LoginHandler.cs

@@ -91,9 +91,10 @@ namespace FastTunnel.Core.Handlers
                             server.SSHList.Remove(item.RemotePort);
                         }
 
-                        var ls = new Listener<SSHHandlerArg>("0.0.0.0", item.RemotePort, _logger,
+                        var ls = new AsyncListener<SSHHandlerArg>("0.0.0.0", item.RemotePort, _logger,
 
                              new SSHHandlerArg { LocalClient = client, SSHConfig = item });
+
                         ls.Listen((client, local) =>
                         {
                             var msgid = Guid.NewGuid().ToString();

FastTunnel.Core/IListener.cs

@@ -7,6 +7,12 @@ namespace FastTunnel.Core
 {
     public interface IListener<T>
     {
+        string IP { get; set; }
+
+        int Port { get; set; }
+
         void Listen(Action<Socket, T> receiveClient);
+
+        void ShutdownAndClose();
     }
 }

FastTunnel.Core/Listener.cs

@@ -1,98 +0,0 @@
-using Microsoft.Extensions.Logging;
-using System;
-using System.Collections.Generic;
-using System.Net;
-using System.Net.Sockets;
-using System.Text;
-using System.Threading;
-using FastTunnel.Core.Extensions;
-
-namespace FastTunnel.Core
-{
-    [Obsolete("Replaced by AsyncListener")]
-    public class Listener<T> : IListener<T>
-    {
-        ILogger<object> _logerr;
-
-        public string IP { get; set; }
-
-        public int Port { get; set; }
-
-        Action<Socket, T> handler;
-        Socket ls;
-        T _data;
-
-        public Listener(string ip, int port, ILogger<object> logerr, T data)
-        {
-            _logerr = logerr;
-            _data = data;
-            this.IP = ip;
-            this.Port = port;
-
-            IPAddress ipa = IPAddress.Parse(IP);
-            IPEndPoint ipe = new IPEndPoint(ipa, Port);
-
-            ls = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
-            ls.Bind(ipe);
-        }
-
-        public void Listen(Action<Socket, T> receiveClient)
-        {
-            this.handler = receiveClient;
-            ls.Listen(100);
-            ThreadPool.QueueUserWorkItem((state) =>
-            {
-                var _socket = state as Socket;
-
-                while (true)
-                {
-                    try
-                    {
-                        var client = _socket.Accept();
-
-                        string point = client.RemoteEndPoint.ToString();
-                        ThreadPool.QueueUserWorkItem(ReceiveCustomer, client);
-                    }
-                    catch (SocketException ex)
-                    {
-                        break;
-                    }
-                    catch (Exception ex)
-                    {
-                        _logerr.LogError(ex);
-                        throw;
-                    }
-                }
-            }, ls);
-        }
-
-        private void ReceiveCustomer(object state)
-        {
-            var client = state as Socket;
-            try
-            {
-                handler.Invoke(client, _data);
-            }
-            catch (Exception ex)
-            {
-                _logerr.LogError(ex);
-            }
-        }
-
-        public void ShutdownAndClose()
-        {
-            try
-            {
-                ls.Shutdown(SocketShutdown.Both);
-            }
-            catch (Exception)
-            {
-            }
-            finally
-            {
-                ls.Close();
-                _logerr.LogDebug("Listener closed");
-            }
-        }
-    }
-}

FastTunnel.Core/Models/SSHInfo.cs

@@ -11,6 +11,6 @@ namespace FastTunnel.Core.Models
 
         public SSHConfig SSHConfig { get; set; }
 
-        public Listener<T> Listener { get; set; }
+        public IListener<T> Listener { get; set; }
     }
 }