Exemple #1
0
		/// <summary>
		/// Starts the synchronous authentication process.
		/// </summary>
		/// <exception cref="ProxyException">Authentication with the proxy server failed.</exception>
		/// <exception cref="ProtocolViolationException">The proxy server uses an invalid protocol.</exception>
		/// <exception cref="SocketException">An operating system error occurs while accessing the Socket.</exception>
		/// <exception cref="ObjectDisposedException">The Socket has been closed.</exception>
		private void Authenticate() {
			Server.Send(new byte [] {5, 2, 0, 2});
			byte[] buffer = ReadBytes(2);
			if (buffer[1] == 255)
				throw new ProxyException("No authentication method accepted.");
			AuthMethod authenticate;
			switch (buffer[1]) {
				case 0:
					authenticate = new AuthNone(Server);
					break;
				case 2:
					authenticate = new AuthUserPass(Server, Username, Password);
					break;
				default:
					throw new ProtocolViolationException();
			}
			authenticate.Authenticate();
		}
Exemple #2
0
 /// <summary>
 /// Called when an authentication reply has been received.
 /// </summary>
 /// <param name="ar">Stores state information for this asynchronous operation as well as any user-defined data.</param>
 private void OnAuthReceive(IAsyncResult ar)
 {
     try {
         Received += Server.EndReceive(ar);
         if (Received <= 0)
             throw new SocketException();
     } catch (Exception e) {
         ProtocolComplete(e);
         return;
     }
     try {
         if (Received < 2) {
             Server.BeginReceive(Buffer, Received, Buffer.Length - Received, SocketFlags.None, new AsyncCallback(this.OnAuthReceive), Server);
         } else {
             AuthMethod authenticate;
             switch(Buffer[1]) {
                 case 0:
                     authenticate = new AuthNone(Server);
                     break;
                 case 2:
                     authenticate = new AuthUserPass(Server, Username, Password);
                     break;
                 default:
                     ProtocolComplete(new SocketException());
                     return;
             }
             authenticate.BeginAuthenticate(new HandShakeComplete(this.OnAuthenticated));
         }
     } catch (Exception e) {
         ProtocolComplete(e);
     }
 }