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188 lines
5.8 KiB
188 lines
5.8 KiB
/* The MIT License
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*
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* Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "connection.h"
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#include <boost/bind.hpp>
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Connection::Connection(boost::asio::io_service& ioService)
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: m_socket(ioService), m_resolver(ioService)
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{
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m_connected = false;
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m_connecting = false;
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m_port = 0;
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}
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void Connection::stop()
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{
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if(m_connecting){
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m_resolver.cancel();
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m_socket.cancel();
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m_connecting = false;
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}
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}
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bool Connection::connect(const std::string& ip, uint16 port, const Callback& callback)
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{
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logInfo("[Connection::connect]: Ip: %s - Port: %d", ip.c_str(), port);
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if(m_connecting){
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logError("Already is connecting.");
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return false;
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}
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if(m_connected){
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logError("Already is connected.");
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return false;
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}
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m_connectCallback = callback;
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m_connecting = true;
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m_ip = ip;
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m_port = port;
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//first resolve dns
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boost::asio::ip::tcp::resolver::query query(ip, convertType<std::string, uint16>(port));
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m_resolver.async_resolve(query, boost::bind(&Connection::onResolveDns, this, boost::asio::placeholders::error, boost::asio::placeholders::iterator));
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return true;
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}
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void Connection::onResolveDns(const boost::system::error_code& error, boost::asio::ip::tcp::resolver::iterator endpointIt)
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{
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logInfo("[Connection::onResolveDns]");
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if(error){
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m_connecting = false;
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logInfo("Error");
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m_errorCallback(error, __FUNCTION__);
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return;
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}
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//lets connect
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m_socket.async_connect(*endpointIt, boost::bind(&Connection::onConnect, this, boost::asio::placeholders::error));
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}
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void Connection::onConnect(const boost::system::error_code& error)
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{
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if(error){
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logInfo("Error");
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m_connecting = false;
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m_errorCallback(error, __FUNCTION__);
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return;
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}
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m_connected = true;
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m_connectCallback();
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}
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void Connection::handleError(const boost::system::error_code& error)
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{
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stop();
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if(isConnected()){
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closeSocket();
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}
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}
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void Connection::closeSocket()
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{
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boost::system::error_code error;
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m_socket.shutdown(boost::asio::ip::tcp::socket::shutdown_both, error);
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if(error) {
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logError("Connection::closeSocket(): %s", error.message().c_str());
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}
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m_socket.close(error);
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if(error) {
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logError("Connection::closeSocket(): %s", error.message().c_str());
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}
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}
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void Connection::send(NetworkMessagePtr networkMessage, ConnectionCallback onSend)
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{
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boost::asio::async_write(m_socket,
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boost::asio::buffer(networkMessage->getBuffer(), NetworkMessage::header_length),
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boost::bind(&Connection::onSendHeader, shared_from_this(), networkMessage, onSend, boost::asio::placeholders::error));
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}
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void Connection::recv(RecvCallback onRecv)
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{
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NetworkMessagePtr networkMessage(new NetworkMessage);
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boost::asio::async_read(m_socket,
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boost::asio::buffer(networkMessage->getBuffer(), NetworkMessage::header_length),
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boost::bind(&Connection::onRecvHeader, shared_from_this(), networkMessage, onRecv, boost::asio::placeholders::error));
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}
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void Connection::onRecvHeader(ConnectionPtr connection, NetworkMessagePtr networkMessage, RecvCallback onRecv, const boost::system::error_code& error)
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{
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if(error){
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connection->handleError(error);
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connection->onError(error, __FUNCTION__);
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return;
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}
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boost::asio::async_read(connection->getSocket(),
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boost::asio::buffer(networkMessage->getBodyBuffer(), networkMessage->getMessageLength()),
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boost::bind(&Connection::onRecvBody, connection, networkMessage, onRecv, boost::asio::placeholders::error));
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}
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void Connection::onRecvBody(ConnectionPtr connection, NetworkMessagePtr networkMessage, RecvCallback onRecv, const boost::system::error_code& error)
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{
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if(error){
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connection->handleError(error);
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connection->onError(error, __FUNCTION__);
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return;
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}
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onRecv(networkMessage);
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}
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void Connection::onSendHeader(ConnectionPtr connection, NetworkMessagePtr networkMessage, ConnectionCallback onSend, const boost::system::error_code& error)
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{
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if(error){
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connection->handleError(error);
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connection->onError(error, __FUNCTION__);
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return;
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}
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boost::asio::async_write(connection->getSocket(),
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boost::asio::buffer(networkMessage->getBodyBuffer(), networkMessage->getMessageLength()),
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boost::bind(&Connection::onSendBody, connection, networkMessage, onSend, boost::asio::placeholders::error));
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}
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void Connection::onSendBody(ConnectionPtr connection, NetworkMessagePtr networkMessage, ConnectionCallback onSend, const boost::system::error_code& error)
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{
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if(error){
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connection->handleError(error);
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connection->onError(error, __FUNCTION__);
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return;
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}
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onSend();
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}
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