Fix for the secure connection

Example/Program.cs

@@ -8,17 +8,17 @@ using System.Threading;
 using WebSocketSharp;
 using WebSocketSharp.Net;
 
-namespace Example
+namespace Example {
-{
+
-  public struct NfMessage
+  public struct NfMessage {
-  {
+
     public string Summary;
     public string Body;
     public string Icon;
   }
 
-  public class ThreadState
+  public class ThreadState {
-  {
+
     public bool           Enabled      { get; set; }
     public AutoResetEvent Notification { get; private set; }
 
@@ -29,8 +29,8 @@ namespace Example
     }
   }
 
-  public class Program
+  public class Program {
-  {
+
     private static Queue _msgQ = Queue.Synchronized(new Queue());
 
     private static void enNfMessage(string summary, string body, string icon)
@@ -47,7 +47,7 @@ namespace Example
 
     public static void Main(string[] args)
     {
-      ThreadState ts = new ThreadState();
+      var ts = new ThreadState();
 
       WaitCallback notifyMsg = state => 
       {
@@ -57,11 +57,9 @@ namespace Example
 
           if (_msgQ.Count > 0)
           {
-            NfMessage msg = (NfMessage)_msgQ.Dequeue();
+            var msg = (NfMessage)_msgQ.Dequeue();
             #if NOTIFY
-            Notification nf = new Notification(msg.Summary,
+            var nf = new Notification(msg.Summary, msg.Body, msg.Icon);
-                                               msg.Body,
-                                               msg.Icon);
             nf.AddHint("append", "allowed");
             nf.Show();
             #else
@@ -75,15 +73,16 @@ namespace Example
 
       ThreadPool.QueueUserWorkItem(notifyMsg);
 
-      using (WebSocket ws = new WebSocket("ws://echo.websocket.org", "echo"))
+      using (var ws = new WebSocket("ws://echo.websocket.org", "echo"))
-      //using (WebSocket ws = new WebSocket("wss://echo.websocket.org", "echo"))
+      //using (var ws = new WebSocket("wss://echo.websocket.org", "echo"))
-      //using (WebSocket ws = new WebSocket("ws://localhost:4649"))
+      //using (var ws = new WebSocket("ws://localhost:4649"))
-      //using (WebSocket ws = new WebSocket("ws://localhost:4649/Echo"))
+      //using (var ws = new WebSocket("ws://localhost:4649/Echo"))
-      //using (WebSocket ws = new WebSocket("ws://localhost:4649/Echo?name=nobita"))
+      //using (var ws = new WebSocket("wss://localhost:4649/Echo"))
-      //using (WebSocket ws = new WebSocket("ws://localhost:4649/エコー?name=のび太"))
+      //using (var ws = new WebSocket("ws://localhost:4649/Echo?name=nobita"))
-      //using (WebSocket ws = new WebSocket("ws://localhost:4649/Chat"))
+      //using (var ws = new WebSocket("ws://localhost:4649/エコー?name=のび太"))
-      //using (WebSocket ws = new WebSocket("ws://localhost:4649/Chat?name=nobita"))
+      //using (var ws = new WebSocket("ws://localhost:4649/Chat"))
-      //using (WebSocket ws = new WebSocket("ws://localhost:4649/チャット?name=のび太"))
+      //using (var ws = new WebSocket("ws://localhost:4649/Chat?name=nobita"))
+      //using (var ws = new WebSocket("ws://localhost:4649/チャット?name=のび太"))
       {
         ws.OnOpen += (sender, e) =>
         {
@@ -111,11 +110,16 @@ namespace Example
             "notification-message-im");
         };
 
-        //ws.Origin = "http://echo.websocket.org";
-        //ws.Compression = CompressionMethod.DEFLATE;
         #if DEBUG
         ws.Log.Level = LogLevel.TRACE;
         #endif
+        //ws.Compression = CompressionMethod.DEFLATE;
+        //ws.Origin = "http://echo.websocket.org";
+        //ws.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) =>
+        //{
+        //  ws.Log.Debug(String.Format("\n{0}\n{1}", certificate.Issuer, certificate.Subject));
+        //  return true;
+        //};
         //ws.SetCookie(new Cookie("nobita", "\"idiot, gunfighter\""));
         //ws.SetCookie(new Cookie("dora", "tanuki"));
         ws.Connect();

Example2/App.config

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <appSettings>
-    <add key="ServerCertPath" value="/path/to/server.cer" />
+    <add key="ServerCertFile" value="/path/to/cert.pfx"/>
+    <add key="CertFilePassword" value="password"/>
   </appSettings>
 </configuration>

Example2/Example2.csproj

@@ -49,6 +49,7 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
+    <Reference Include="System.Configuration" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AssemblyInfo.cs" />

Example2/Program.cs

@@ -1,16 +1,18 @@
 using System;
+using System.Configuration;
+using System.Security.Cryptography.X509Certificates;
 using WebSocketSharp;
 using WebSocketSharp.Server;
 
-namespace Example2
+namespace Example2 {
-{
+
-  public class Program
+  public class Program {
-  {
+
     public static void Main (string [] args)
     {
       /* Single service server
-      //var wssv = new WebSocketServiceHost<Echo>("ws://localhost:4649");
+      var wssv = new WebSocketServiceHost<Echo> ("ws://localhost:4649");
-      var wssv = new WebSocketServiceHost<Echo>("ws://localhost:4649/Echo");
+      //var wssv = new WebSocketServiceHost<Echo> ("ws://localhost:4649/Echo");
       //var wssv = new WebSocketServiceHost<Echo> ("ws://localhost:4649/エコー");
       //var wssv = new WebSocketServiceHost<Echo> (4649);
       //var wssv = new WebSocketServiceHost<Echo> (4649, "/Echo");
@@ -21,7 +23,10 @@ namespace Example2
       //var wssv = new WebSocketServiceHost<Chat> (4649);
       //var wssv = new WebSocketServiceHost<Chat> (4649, "/Chat");
       //var wssv = new WebSocketServiceHost<Chat> (4649, "/チャット");
-      //wssv.Sweeping = false; // Stop the sweep inactive session timer.
+      #if DEBUG
+      wssv.Log.Level = LogLevel.TRACE;
+      #endif
+      //wssv.Sweeping = false;
 
       wssv.Start ();
       Console.WriteLine (
@@ -29,13 +34,18 @@ namespace Example2
         wssv.Uri, wssv.Address, wssv.Port);
        */
 
-      // Multi services server
+      /* Multi services server */
       var wssv = new WebSocketServer (4649);
+      //var wssv = new WebSocketServer (4649, true);
       //var wssv = new WebSocketServer ("ws://localhost:4649");
+      //var wssv = new WebSocketServer ("wss://localhost:4649");
       #if DEBUG
       wssv.Log.Level = LogLevel.TRACE;
       #endif
-      //wssv.Sweeping = false; // Stop the sweep inactive session timer.
+      //var file = ConfigurationManager.AppSettings ["ServerCertFile"];
+      //var password = ConfigurationManager.AppSettings ["CertFilePassword"];
+      //wssv.Certificate = new X509Certificate2 (file, password);
+      //wssv.Sweeping = false;
       wssv.AddWebSocketService<Echo> ("/Echo");
       wssv.AddWebSocketService<Chat> ("/Chat");
       //wssv.AddWebSocketService<Echo> ("/エコー");
@@ -46,10 +56,9 @@ namespace Example2
         "WebSocket Server listening on port: {0} service path:", wssv.Port);
       foreach (var path in wssv.ServicePaths)
         Console.WriteLine ("  {0}", path);
+
       Console.WriteLine ();
-       
+      Console.WriteLine ("Press enter key to stop server...");
-
-      Console.WriteLine("Press any key to stop server...");
       Console.ReadLine ();
 
       wssv.Stop ();

README.md

@@ -71,7 +71,7 @@ ws.OnOpen += (sender, e) =>
 };
 ```
 
-`e` has come across as `EventArgs.Empty`, so there is no operation on `e`.
+`e` has come across as `EventArgs.Empty`, so you don't use `e`.
 
 ##### WebSocket.OnMessage event #####
 
@@ -84,7 +84,11 @@ ws.OnMessage += (sender, e) =>
 };
 ```
 
-`e.Type` (`WebSocketSharp.MessageEventArgs.Type`, the type of this property is `WebSocketSharp.Opcode`) indicates the **Frame type** of a WebSocket frame, so by checking this property, you determine which item you should operate.
+`e.Type` (`WebSocketSharp.MessageEventArgs.Type`, the type of this property is `WebSocketSharp.Opcode`) indicates the **Frame Type** of a WebSocket frame, so by checking this property, you determine which item you should use.
+
+If `e.Type` equals `Opcode.TEXT`, you use `e.Data` (`WebSocketSharp.MessageEventArgs.Data`, the type of this property is `string`) that contains the received data.
+
+If `e.Type` equals `Opcode.BINARY`, you use `e.RawData` (`WebSocketSharp.MessageEventArgs.RawData`, the type of this property is `byte[]`) that contains the received data.
 
 ```cs
 if (e.Type == Opcode.TEXT)
@@ -100,10 +104,6 @@ if (e.Type == Opcode.BINARY)
 }
 ```
 
-If `e.Type` equaled `Opcode.TEXT`, you would operate `e.Data` (`WebSocketSharp.MessageEventArgs.Data`, the type of this property is `string`).
-
-If `e.Type` equaled `Opcode.BINARY`, you would operate `e.RawData` (`WebSocketSharp.MessageEventArgs.RawData`, the type of this property is `byte[]`).
-
 ##### WebSocket.OnError event #####
 
 A `WebSocket.OnError` event occurs when the `WebSocket` gets an error.
@@ -114,7 +114,7 @@ ws.OnError += (sender, e) =>
   ...
 };
 ```
-`e.Message` (`WebSocketSharp.ErrorEventArgs.Message`, the type of this property is `string`) contains an error message, so you operate this.
+`e.Message` (`WebSocketSharp.ErrorEventArgs.Message`, the type of this property is `string`) contains an error message, so you use this.
 
 ##### WebSocket.OnClose event #####
 
@@ -127,7 +127,7 @@ ws.OnClose += (sender, e) =>
 };
 ```
 
-`e.Code` (`WebSocketSharp.CloseEventArgs.Code`, the type of this property is `ushort`) contains a status code indicating the reason for closure and `e.Reason` (`WebSocketSharp.CloseEventArgs.Reason`, the type of this property is `string`) contains the reason for closure, so you operate these.
+`e.Code` (`WebSocketSharp.CloseEventArgs.Code`, the type of this property is `ushort`) contains a status code indicating the reason for closure and `e.Reason` (`WebSocketSharp.CloseEventArgs.Reason`, the type of this property is `string`) contains the reason for closure, so you use these.
 
 #### Step 4 ####
 
@@ -157,7 +157,7 @@ Closing the WebSocket connection.
 ws.Close(code, reason);
 ```
 
-If you wanted to close the WebSocket connection explicitly, you would use the `Close` method.
+If you want to close the WebSocket connection explicitly, you can use the `Close` method.
 
 And the `Close` method is overloaded. The types of `code` are `WebSocketSharp.CloseStatusCode` and `ushort`, the type of `reason` is `string`.
 
@@ -176,7 +176,7 @@ namespace Example {
   {
     protected override void OnMessage(MessageEventArgs e)
     {
-      var msg = e.Data.ToLower().Equals("balus")
+      var msg = e.Data.ToLower() == "balus"
               ? "I've been balused already..."
               : "I'm not available now.";
       Send(msg);
@@ -266,7 +266,7 @@ You can add any WebSocket service with a specified path to the service to your `
 
 The type of `T` inherits `WebSocketService` class, so you can use a class that was created in **Step 2**.
 
-If you created a instance of the `WebSocketServer` class without the port number, the `WebSocketServer` would set the port number to **80**  automatically. So it is necessary to run with root permission.
+If you create a instance of the `WebSocketServer` class without the port number, the `WebSocketServer` set the port number to **80** automatically. So it is necessary to run with root permission.
 
     $ sudo mono example2.exe
 
@@ -285,7 +285,7 @@ wssv.OnError += (sender, e) =>
 };
 ```
 
-`e.Message` (`WebSocketSharp.ErrorEventArgs.Message`, the type of this property is `string`) contains an error message, so you operate this.
+`e.Message` (`WebSocketSharp.ErrorEventArgs.Message`, the type of this property is `string`) contains an error message, so you use this.
 
 ##### WebSocketServer.OnError event #####
 
@@ -320,21 +320,51 @@ httpsv.AddWebSocketService<Echo>("/");
 
 For more information, could you see **[Example3]**?
 
+### Secure Connection ###
+
+As a **WebSocket Client**, creating a instance of the `WebSocket` class with the WebSocket URL with the **wss** scheme.
+
+```cs
+using (var ws = new WebSocket("wss://example.com"))
+{
+  ...
+}
+```
+
+If you want to set the custom validation for the server certificate, you can use the `WebSocket.ServerCertificateValidationCallback` property.
+
+```cs
+ws.ServerCertificateValidationCallback = (sender, certificate, chain, sslPolicyErrors) =>
+{
+  // Do something to validate the server certificate.
+  return true; // The server certificate is valid.
+};
+```
+
+If you set this property to nothing, the validation does nothing with the server certificate, always returns valid.
+
+As a **WebSocket Server**, creating and setting a instance of the WebSocket server with some settings for the secure connection.
+
+```cs
+var wssv = new WebSocketServer(4649, true);
+wssv.Certificate = new X509Certificate2("/path/to/cert.pfx", "password for cert.pfx");
+```
+
 ### Logging ###
 
 The `WebSocket` class includes own logging functions.
 
 The `WebSocket.Log` property provides the logging functions.
 
-If you wanted to change the current logging level (the default is the `LogLevel.ERROR`), you would operate the `WebSocket.Log.Level` property.
+If you want to change the current logging level (the default is `LogLevel.ERROR`), you can use the `WebSocket.Log.Level` property.
 
 ```cs
 ws.Log.Level = LogLevel.DEBUG;
 ```
 
-This setting means that the logging outputs with a less than the `LogLevel.DEBUG` are not outputted.
+This setting means that the logging outputs with a less than `LogLevel.DEBUG` are not outputted.
 
-And if you wanted to output a log, you would use some output methods. The following outputs a log with the `LogLevel.DEBUG`.
+And if you want to output a log, you can use some output methods. The following outputs a log with `LogLevel.DEBUG`.
 
 ```cs
 ws.Log.Debug("This is a debug message.");
@@ -354,7 +384,7 @@ Examples of using **websocket-sharp**.
 
 [Example1] connects to the [Audio Data delivery server] using the WebSocket ([Example1] is only implemented the chat feature, still unfinished).
 
-And [Example1] uses the [Json.NET].
+And [Example1] uses [Json.NET].
 
 ### Example2 ###
 

websocket-sharp/AssemblyInfo.cs

@@ -5,7 +5,7 @@ using System.Runtime.CompilerServices;
 // Change them to the values specific to your project.
 
 [assembly: AssemblyTitle("websocket-sharp")]
-[assembly: AssemblyDescription("A C# implementation of the WebSocket protocol client & server")]
+[assembly: AssemblyDescription("A C# implementation of the WebSocket protocol client and server")]
 [assembly: AssemblyConfiguration("")]
 [assembly: AssemblyCompany("")]
 [assembly: AssemblyProduct("websocket-sharp.dll")]

websocket-sharp/Ext.cs

@@ -45,6 +45,7 @@ using System.IO;
 using System.IO.Compression;
 using System.Linq;
 using System.Net.Sockets;
+using System.Security.Cryptography.X509Certificates;
 using System.Text;
 using WebSocketSharp.Net;
 using WebSocketSharp.Net.WebSockets;
@@ -282,6 +283,12 @@ namespace WebSocketSharp {
              : null;
     }
 
+    internal static TcpListenerWebSocketContext GetWebSocketContext(
+      this TcpClient client, bool secure, X509Certificate cert)
+    {
+      return new TcpListenerWebSocketContext(client, secure, cert);
+    }
+
     // <summary>
     // Determines whether the specified object is <see langword="null"/>.
     // </summary>
@@ -532,60 +539,6 @@ namespace WebSocketSharp {
 
     #region Public Methods
 
-    /// <summary>
-    /// Accepts a WebSocket connection by the <see cref="TcpListener"/>.
-    /// </summary>
-    /// <returns>
-    /// A <see cref="TcpListenerWebSocketContext"/> that contains a WebSocket connection.
-    /// </returns>
-    /// <param name="listener">
-    /// A <see cref="TcpListener"/> that provides a TCP connection to accept a WebSocket connection.
-    /// </param>
-    /// <param name="secure">
-    /// A <see cref="bool"/> that indicates a secure connection or not. (<c>true</c> indicates a secure connection.)
-    /// </param>
-    /// <exception cref="ArgumentNullException">
-    /// <paramref name="listener"/> is <see langword="null"/>.
-    /// </exception>
-    public static TcpListenerWebSocketContext AcceptWebSocket(this TcpListener listener, bool secure)
-    {
-      if (listener == null)
-        throw new ArgumentNullException("listener");
-
-      var client = listener.AcceptTcpClient();
-      return new TcpListenerWebSocketContext(client, secure);
-    }
-
-    /// <summary>
-    /// Accepts a WebSocket connection asynchronously by the <see cref="TcpListener"/>.
-    /// </summary>
-    /// <param name="listener">
-    /// A <see cref="TcpListener"/> that provides a TCP connection to accept a WebSocket connection.
-    /// </param>
-    /// <param name="secure">
-    /// A <see cref="bool"/> that indicates a secure connection or not. (<c>true</c> indicates a secure connection.)
-    /// </param>
-    /// <param name="completed">
-    /// An Action&lt;TcpListenerWebSocketContext&gt; delegate that contains the method(s) that is called when an asynchronous operation completes.
-    /// </param>
-    /// <exception cref="ArgumentNullException">
-    /// <paramref name="listener"/> is <see langword="null"/>.
-    /// </exception>
-    public static void AcceptWebSocketAsync(this TcpListener listener, bool secure, Action<TcpListenerWebSocketContext> completed)
-    {
-      if (listener == null)
-        throw new ArgumentNullException("listener");
-
-      AsyncCallback callback = (ar) =>
-      {
-        var client  = listener.EndAcceptTcpClient(ar);
-        var context = new TcpListenerWebSocketContext(client, secure);
-        completed(context);
-      };
-
-      listener.BeginAcceptTcpClient(callback, null);
-    }
-
     /// <summary>
     /// Determines whether the specified <see cref="string"/> contains any of characters
     /// in the specified array of <see cref="char"/>.

websocket-sharp/Net/WebSockets/TcpListenerWebSocketContext.cs

@@ -30,12 +30,13 @@ using System;
 using System.Collections.Generic;
 using System.Collections.Specialized;
 using System.Net.Sockets;
+using System.Security.Cryptography.X509Certificates;
 using System.Security.Principal;
 
 namespace WebSocketSharp.Net.WebSockets {
 
   /// <summary>
-  /// Provides access to the WebSocket connection request objects received by the <see cref="TcpListener"/> class.
+  /// Provides access to the WebSocket connection request objects received by the <see cref="TcpListener"/>.
   /// </summary>
   /// <remarks>
   /// </remarks>
@@ -44,22 +45,22 @@ namespace WebSocketSharp.Net.WebSockets {
     #region Private Fields
 
     private CookieCollection _cookies;
-    private TcpClient        _tcpClient;
+    private TcpClient        _client;
-    private bool             _isSecure;
     private RequestHandshake _request;
+    private bool             _secure;
+    private WsStream         _stream;
     private WebSocket        _websocket;
-    private WsStream         _wsStream;
 
     #endregion
 
     #region Internal Constructors
 
-    internal TcpListenerWebSocketContext(TcpClient tcpClient, bool secure)
+    internal TcpListenerWebSocketContext(TcpClient client, bool secure, X509Certificate cert)
     {
-      _tcpClient = tcpClient;
+      _client = client;
-      _isSecure  = secure;
+      _secure = secure;
-      _wsStream  = WsStream.CreateServerStream(tcpClient, secure);
+      _stream = WsStream.CreateServerStream(client, secure, cert);
-      _request   = RequestHandshake.Parse(_wsStream.ReadHandshake());
+      _request = RequestHandshake.Parse(_stream.ReadHandshake());
       _websocket = new WebSocket(this);
     }
 
@@ -69,7 +70,7 @@ namespace WebSocketSharp.Net.WebSockets {
 
     internal WsStream Stream {
       get {
-        return _wsStream;
+        return _stream;
       }
     }
 
@@ -85,7 +86,7 @@ namespace WebSocketSharp.Net.WebSockets {
     /// </value>
     public override CookieCollection CookieCollection {
       get {
-        if (_cookies.IsNull())
+        if (_cookies == null)
           _cookies = _request.Cookies;
 
         return _cookies;
@@ -139,7 +140,7 @@ namespace WebSocketSharp.Net.WebSockets {
     /// </value>
     public override bool IsSecureConnection {
       get {
-        return _isSecure;
+        return _secure;
       }
     }
 
@@ -260,7 +261,7 @@ namespace WebSocketSharp.Net.WebSockets {
     /// </value>
     public virtual System.Net.IPEndPoint ServerEndPoint {
       get {
-        return (System.Net.IPEndPoint)_tcpClient.Client.LocalEndPoint;
+        return (System.Net.IPEndPoint)_client.Client.LocalEndPoint;
       }
     }
 
@@ -287,7 +288,7 @@ namespace WebSocketSharp.Net.WebSockets {
     /// </value>
     public virtual System.Net.IPEndPoint UserEndPoint {
       get {
-        return (System.Net.IPEndPoint)_tcpClient.Client.RemoteEndPoint;
+        return (System.Net.IPEndPoint)_client.Client.RemoteEndPoint;
       }
     }
 
@@ -309,8 +310,8 @@ namespace WebSocketSharp.Net.WebSockets {
 
     internal void Close()
     {
-      _wsStream.Close();
+      _stream.Close();
-      _tcpClient.Close();
+      _client.Close();
     }
 
     #endregion

websocket-sharp/Server/WebSocketServerBase.cs

@@ -30,6 +30,7 @@ using System;
 using System.Diagnostics;
 using System.Net;
 using System.Net.Sockets;
+using System.Security.Cryptography.X509Certificates;
 using System.Threading;
 using WebSocketSharp.Net.WebSockets;
 
@@ -46,13 +47,14 @@ namespace WebSocketSharp.Server {
     #region Private Fields
 
     private IPAddress        _address;
+    private X509Certificate2 _cert;
     private bool             _listening;
     private Logger           _logger;
     private int              _port;
     private Thread           _receiveRequestThread;
     private bool             _secure;
     private bool             _selfHost;
-    private TcpListener _tcpListener;
+    private TcpListener      _listener;
     private Uri              _uri;
 
     #endregion
@@ -63,7 +65,7 @@ namespace WebSocketSharp.Server {
     /// Initializes a new instance of the <see cref="WebSocketServerBase"/> class.
     /// </summary>
     /// <remarks>
-    /// This constructor initializes a new instance of this class as non self host.
+    /// This constructor initializes a new instance of this class as non self hosted server.
     /// </remarks>
     protected WebSocketServerBase()
       : this(new Logger())
@@ -75,7 +77,7 @@ namespace WebSocketSharp.Server {
     /// with the specified <paramref name="logger"/>.
     /// </summary>
     /// <remarks>
-    /// This constructor initializes a new instance of this class as non self host.
+    /// This constructor initializes a new instance of this class as non self hosted server.
     /// </remarks>
     /// <param name="logger">
     /// A <see cref="Logger"/> that provides the logging functions.
@@ -208,6 +210,25 @@ namespace WebSocketSharp.Server {
       }
     }
 
+    /// <summary>
+    /// Gets or sets the certificate used to authenticate the server on the secure connection.
+    /// </summary>
+    /// <value>
+    /// A <see cref="X509Certificate2"/> used to authenticate the server.
+    /// </value>
+    public X509Certificate2 Certificate {
+      get {
+        return _cert;
+      }
+
+      set {
+        if (_listening)
+          return;
+
+        _cert = value;
+      }
+    }
+
     /// <summary>
     /// Gets a value indicating whether the server has been started.
     /// </summary>
@@ -303,7 +324,7 @@ namespace WebSocketSharp.Server {
       _listening = false;
       _logger = new Logger();
       _selfHost = true;
-      _tcpListener = new TcpListener(_address, _port);
+      _listener = new TcpListener(_address, _port);
     }
 
     private void init(Uri uri)
@@ -320,13 +341,13 @@ namespace WebSocketSharp.Server {
       init();
     }
 
-    private void processRequestAsync(TcpListenerWebSocketContext context)
+    private void processRequestAsync(TcpClient client)
     {
-      WaitCallback callback = (state) =>
+      WaitCallback callback = state =>
       {
         try
         {
-          AcceptWebSocket(context);
+          AcceptWebSocket(client.GetWebSocketContext(_secure, _cert));
         }
         catch (Exception ex)
         {
@@ -344,11 +365,11 @@ namespace WebSocketSharp.Server {
       {
         try
         {
-          processRequestAsync(_tcpListener.AcceptWebSocket(_secure));
+          processRequestAsync(_listener.AcceptTcpClient());
         }
         catch (SocketException)
         {
-          // TcpListener has been stopped.
+          _logger.Info("TcpListener has been stopped.");
           break;
         }
         catch (Exception ex)
@@ -368,7 +389,7 @@ namespace WebSocketSharp.Server {
       _receiveRequestThread.Start();
     }
 
-    private bool tryCreateUri(string uriString, out Uri result, out string message)
+    private static bool tryCreateUri(string uriString, out Uri result, out string message)
     {
       if (!uriString.TryCreateWebSocketUri(out result, out message))
         return false;
@@ -422,7 +443,16 @@ namespace WebSocketSharp.Server {
       if (!_selfHost || _listening)
         return;
 
-      _tcpListener.Start();
+      if (_secure && _cert == null)
+      {
+        var msg = "Secure connection requires a server certificate.";
+        _logger.Error(msg);
+        error(msg);
+
+        return;
+      }
+
+      _listener.Start();
       startReceiveRequestThread();
       _listening = true;
     }
@@ -435,7 +465,7 @@ namespace WebSocketSharp.Server {
       if (!_selfHost || !_listening)
         return;
 
-      _tcpListener.Stop();
+      _listener.Stop();
       _receiveRequestThread.Join(5 * 1000);
       _listening = false;
     }

websocket-sharp/WebSocket.cs

@@ -38,6 +38,7 @@ using System.Diagnostics;
 using System.IO;
 using System.Linq;
 using System.Net.Sockets;
+using System.Net.Security;
 using System.Security.Cryptography;
 using System.Text;
 using System.Threading;
@@ -66,6 +67,8 @@ namespace WebSocketSharp {
     #region Private Fields
 
     private string            _base64key;
+    private RemoteCertificateValidationCallback
+                              _certValidationCallback;
     private bool              _client;
     private Action            _closeContext;
     private CookieCollection  _cookies;
@@ -162,9 +165,8 @@ namespace WebSocketSharp {
       _uri = uri;
       _protocols = protocols.ToString(", ");
       _client = true;
-      _secure = uri.Scheme == "wss"
+      _secure = uri.Scheme == "wss" ? true : false;
-              ? true
+      _base64key = createBase64Key();
-              : false;
     }
 
     /// <summary>
@@ -226,6 +228,12 @@ namespace WebSocketSharp {
       }
     }
 
+    internal bool IsOpened {
+      get {
+        return _readyState == WsState.OPEN || _readyState == WsState.CLOSING;
+      }
+    }
+
     #endregion
 
     #region Public Properties
@@ -243,8 +251,14 @@ namespace WebSocketSharp {
       }
 
       set {
-        if (isOpened(true))
+        if (IsOpened)
+        {
+          var msg = "The WebSocket connection has already been established.";
+          _logger.Error(msg);
+          error(msg);
+
           return;
+        }
 
         _compression = value;
       }
@@ -363,19 +377,25 @@ namespace WebSocketSharp {
       }
 
       set {
-        if (isOpened(true))
+        string msg = null;
-          return;
+        if (IsOpened)
-
+        {
-        if (value.IsNullOrEmpty())
+          msg = "The WebSocket connection has already been established.";
+        }
+        else if (value.IsNullOrEmpty())
         {
           _origin = String.Empty;
           return;
         }
-
+        else
+        {
           var origin = new Uri(value);
           if (!origin.IsAbsoluteUri || origin.Segments.Length > 1)
+            msg = "The syntax of value of Origin must be '<scheme>://<host>[:<port>]'.";
+        }
+
+        if (msg != null)
         {
-          var msg = "The syntax of value of Origin must be '<scheme>://<host>[:<port>]'.";
           _logger.Error(msg);
           error(msg);
 
@@ -410,6 +430,27 @@ namespace WebSocketSharp {
       }
     }
 
+    /// <summary>
+    /// Gets or sets the callback used to validate the certificate supplied by the server.
+    /// </summary>
+    /// <remarks>
+    /// If the value of this property is <see langword="null"/>, the validation does nothing
+    /// with the server certificate, always returns valid.
+    /// </remarks>
+    /// <value>
+    /// A <see cref="RemoteCertificateValidationCallback"/> delegate that references the method(s)
+    /// used to validate the server certificate. The default is <see langword="null"/>.
+    /// </value>
+    public RemoteCertificateValidationCallback ServerCertificateValidationCallback {
+      get {
+        return _certValidationCallback;
+      }
+
+      set {
+        _certValidationCallback = value;
+      }
+    }
+
     /// <summary>
     /// Gets the WebSocket URL to connect.
     /// </summary>
@@ -777,7 +818,7 @@ namespace WebSocketSharp {
     // As client
     private bool doHandshake()
     {
-      init();
+      setWsStream();
       return processResponseHandshake(sendRequestHandshake());
     }
 
@@ -799,17 +840,6 @@ namespace WebSocketSharp {
       return CompressionMethod.NONE;
     }
 
-    // As client
-    private void init()
-    {
-      _base64key = createBase64Key();
-
-      var host = _uri.DnsSafeHost;
-      var port = _uri.Port;
-      _tcpClient = new TcpClient(host, port);
-      _wsStream = WsStream.CreateClientStream(_tcpClient, host, _secure);
-    }
-
     // As server
     private void init(WebSocketContext context)
     {
@@ -832,21 +862,6 @@ namespace WebSocketSharp {
              : false;
     }
 
-    private bool isOpened(bool errorIfOpened)
-    {
-      if (_readyState != WsState.OPEN && _readyState != WsState.CLOSING)
-        return false;
-
-      if (errorIfOpened)
-      {
-        var msg = "The WebSocket connection has been established already.";
-        _logger.Error(msg);
-        error(msg);
-      }
-
-      return true;
-    }
-
     // As server
     private bool isValidHostHeader()
     {
@@ -1351,6 +1366,15 @@ namespace WebSocketSharp {
       send(res);
     }
 
+    // As client
+    private void setWsStream()
+    {
+      var host = _uri.DnsSafeHost;
+      var port = _uri.Port;
+      _tcpClient = new TcpClient(host, port);
+      _wsStream = WsStream.CreateClientStream(_tcpClient, _secure, host, _certValidationCallback);
+    }
+
     private void startReceiving()
     {
       _exitReceiving = new AutoResetEvent(false);
@@ -1480,8 +1504,14 @@ namespace WebSocketSharp {
     /// </summary>
     public void Connect()
     {
-      if (isOpened(true))
+      if (IsOpened)
+      {
+        var msg = "The WebSocket connection has already been established.";
+        _logger.Error(msg);
+        error(msg);
+
         return;
+      }
 
       try
       {
@@ -1690,12 +1720,14 @@ namespace WebSocketSharp {
     /// </param>
     public void SetCookie(Cookie cookie)
     {
-      if (isOpened(true))
+      var msg = IsOpened
-        return;
+              ? "The WebSocket connection has already been established."
+              : cookie == null
+                ? "'cookie' must not be null."
+                : null;
 
-      if (cookie == null)
+      if (msg != null)
       {
-        var msg = "'cookie' must not be null.";
         _logger.Error(msg);
         error(msg);
 
@@ -1723,24 +1755,28 @@ namespace WebSocketSharp {
     /// </param>
     public void SetCredentials(string userName, string password, bool preAuth)
     {
-      if (isOpened(true))
+      string msg = null;
-        return;
+      if (IsOpened)
-
+      {
-      if (userName == null)
+        msg = "The WebSocket connection has already been established.";
+      }
+      else if (userName == null)
       {
         _credentials = null;
         _preAuth = false;
 
         return;
       }
-
+      else
-      var msg = userName.Length > 0 && (userName.Contains(':') || !userName.IsText())
+      {
+        msg = userName.Length > 0 && (userName.Contains(':') || !userName.IsText())
             ? "'userName' contains an invalid character."
             : !password.IsNullOrEmpty() && !password.IsText()
               ? "'password' contains an invalid character."
-                : String.Empty;
+              : null;
+      }
 
-      if (msg.Length > 0)
+      if (msg != null)
       {
         _logger.Error(msg);
         error(msg);

websocket-sharp/WsStream.cs

@@ -28,7 +28,6 @@
 
 using System;
 using System.Collections.Generic;
-using System.Configuration;
 using System.IO;
 using System.Net.Sockets;
 using System.Security.Cryptography.X509Certificates;
@@ -119,18 +118,20 @@ namespace WebSocketSharp {
 
     #region Internal Methods
 
-    internal static WsStream CreateClientStream(TcpClient tcpClient, string host, bool secure)
+    internal static WsStream CreateClientStream(
+      TcpClient client,
+      bool secure,
+      string host,
+      System.Net.Security.RemoteCertificateValidationCallback validationCallback
+    )
     {
-      var netStream = tcpClient.GetStream();
+      var netStream = client.GetStream();
       if (secure)
       {
-        System.Net.Security.RemoteCertificateValidationCallback callback = (sender, certificate, chain, sslPolicyErrors) =>
+        if (validationCallback == null)
-        {
+          validationCallback = (sender, certificate, chain, sslPolicyErrors) => true;
-          // FIXME: Always returns true
-          return true;
-        };
 
-        var sslStream = new SslStream(netStream, false, callback);
+        var sslStream = new SslStream(netStream, false, validationCallback);
         sslStream.AuthenticateAsClient(host);
 
         return new WsStream(sslStream);
@@ -139,14 +140,13 @@ namespace WebSocketSharp {
       return new WsStream(netStream);
     }
 
-    internal static WsStream CreateServerStream(TcpClient tcpClient, bool secure)
+    internal static WsStream CreateServerStream(TcpClient client, bool secure, X509Certificate cert)
     {
-      var netStream = tcpClient.GetStream();
+      var netStream = client.GetStream();
       if (secure)
       {
         var sslStream = new SslStream(netStream, false);
-        var certPath = ConfigurationManager.AppSettings["ServerCertPath"];
+        sslStream.AuthenticateAsServer(cert);
-        sslStream.AuthenticateAsServer(new X509Certificate2(certPath));
 
         return new WsStream(sslStream);
       }