Пример #1
0
   void
   TCPConnection::StartAsyncConnect_(const String &ip_adress, int port)
   {
      IPAddress adress;
      adress.TryParse(ip_adress, true);

      tcp::endpoint ep;
      ep.address(adress.GetAddress());
      ep.port(port);

      //// Check that we don't try to connect to a port we're listening on. Doing
      //// that could start evil loops.
      //tcp::endpoint endpoint = *endpoint_iterator;

      if (LocalIPAddresses::Instance()->IsLocalPort(ep.address(), remote_port_))
      {
         String sMessage; 
            sMessage.Format(_T("Could not connect to %s on port %d since this would mean connecting to myself."), remote_ip_address_.c_str(), remote_port_);

         OnCouldNotConnect(sMessage);

         LOG_TCPIP(_T("TCPConnection - ") + sMessage);

         return;
      }

      // Attempt a connection to the first endpoint in the list. Each endpoint
      // will be tried until we successfully establish a connection.
      socket_.async_connect(ep,
               std::bind(&TCPConnection::AsyncConnectCompleted, shared_from_this(), std::placeholders::_1));

   }
Пример #2
0
bool
IPAddress::operator == ( const IPAddress & rhs ) const
{
    if ( ( this->GetPort() == rhs.GetPort() ) && ( this->GetAddress() == rhs.GetAddress() ) )
    {
        return ( true );
    }
    return ( false );
}
Пример #3
0
   bool
   TCPConnection::Connect(const AnsiString &remote_ip_address, long remotePort, const IPAddress &localAddress)
   {
#if _DEBUG
      if (!StringParser::IsValidIPAddress(remote_ip_address))
      {
         ErrorManager::Instance()->ReportError(ErrorManager::High, 5506, "TCPConnection::Connect", 
            Formatter::Format("Attempting to connect to {0} - Not a valid IP address.", remote_ip_address));
      }
#endif

      remote_port_ = remotePort;
      remote_ip_address_ = remote_ip_address;
      is_client_ = true;

      LOG_TCPIP(Formatter::Format("Connecting to {0}:{1}...", remote_ip_address_, remotePort));

      if (!localAddress.IsAny())
      {
         boost::system::error_code error_code;

         if (localAddress.GetType() == IPAddress::IPV4)
            socket_.open(boost::asio::ip::tcp::v4(), error_code);
         else if (localAddress.GetType() == IPAddress::IPV6)
            socket_.open(boost::asio::ip::tcp::v6(), error_code);

         if (error_code)
         {
            String errorMessage = Formatter::Format("Failed to open local socket on IP address {0}", localAddress.ToString());
            OnCouldNotConnect(errorMessage);
            ReportError(ErrorManager::Medium, 5520, "TCPConnection::Connect", errorMessage, error_code);
            return false;
         }

         socket_.bind(boost::asio::ip::tcp::endpoint(localAddress.GetAddress(), 0), error_code);


         if (error_code)
         {
            String errorMessage = Formatter::Format("Failed to bind to IP address {0}.", localAddress.ToString());
            ReportError(ErrorManager::Medium, 4330, "TCPConnection::Connect", errorMessage, error_code);
            OnCouldNotConnect(errorMessage);

            boost::system::error_code ignored_error_code;
            socket_.close(ignored_error_code);
            return false;
         }
      }

      // Start an asynchronous resolve to translate the server and service names
      // into a list of endpoints.
      StartAsyncConnect_(remote_ip_address, remotePort);
      return true;
   }
Пример #4
0
   bool
   TestConnect::PerformTest(const String  &localAddressStr, const String &server, int port, String &result)
   {
      boost::asio::io_service io_service;

      IPAddress localAddress;
      if (!localAddressStr.IsEmpty())
      {
         if (!localAddress.TryParse(localAddressStr, false))
         {
            result.append(Formatter::Format("ERROR: Unable to parse address {0}.\r\n", localAddressStr));
            return false;
         }
         else
            result.append(Formatter::Format("Local address is {0}.\r\n", localAddress.ToString()));
      }

      result.append(Formatter::Format("Trying to connect to host {0}...\r\n", server));
      

      // Get a list of endpoints corresponding to the server name.
      tcp::resolver resolver(io_service);
      tcp::resolver::query query(AnsiString(server), AnsiString(StringParser::IntToString(port)), tcp::resolver::query::numeric_service);
      boost::system::error_code errorResolve = boost::asio::error::host_not_found;
      tcp::resolver::iterator endpoint_iterator = resolver.resolve(query, errorResolve);
      tcp::resolver::iterator end;

      if (errorResolve || endpoint_iterator == end)
      {
         // Host was not found.
         String formattedString;
         formattedString.Format(_T("ERROR: The host name %s could not be resolved.\r\n"), server);
         
         result.append(formattedString);
         return false;
      }

      // Try each endpoint until we successfully establish a connection.
      tcp::socket socket(io_service);
      boost::system::error_code error = boost::asio::error::host_not_found;
      while (error && endpoint_iterator != end)
      {
         boost::asio::ip::address adr = (*endpoint_iterator).endpoint().address();

         String ipAddressString = adr.to_string();
         String formattedString;
         formattedString.Format(_T("Trying to connect to TCP/IP address %s on port %d.\r\n"), ipAddressString, port);

         result.append(formattedString);

         socket.close();

         IPAddress emptyAddr;
         bool any = emptyAddr.IsAny();

         if (!localAddress.IsAny())
         {
            socket.open(boost::asio::ip::tcp::v4());
            boost::system::error_code tempError;
            socket.bind(boost::asio::ip::tcp::endpoint(localAddress.GetAddress(), 0), tempError);

            if (tempError)
            {
               result.append(Formatter::Format("ERROR: Unable to bind to address {0}.\r\n", localAddress.ToString()));
               socket.close();
               return false;
            }
         }

         socket.connect(*endpoint_iterator++, error);
      }

      if (error)
      {
         // We were unable to connect.
         result.append(_T("ERROR: It was not possible to connect.\r\n"));
         return false;
      }

      // Read the response status line.
      boost::asio::streambuf response;
      boost::asio::read_until(socket, response, "\r\n");

      std::string s;
      std::istream is(&response);
      std::getline(is, s, '\r');
      result.append(Formatter::Format("Received: {0}.\r\n", String(s)));

      // Close the socket again.
      socket.close();

      result.append(_T("Connected successfully.\r\n"));
      return true;

   }