You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
273 lines
8.1 KiB
273 lines
8.1 KiB
/* The MIT License
|
|
*
|
|
* Copyright (c) 2010 OTClient, https://github.com/edubart/otclient
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
|
|
#include <prerequisites.h>
|
|
#include <core/dispatcher.h>
|
|
#include <net/connection.h>
|
|
|
|
static boost::asio::io_service ioService;
|
|
|
|
Connection::Connection() :
|
|
m_socket(ioService),
|
|
m_resolver(ioService),
|
|
m_writeError(false),
|
|
m_readError(false),
|
|
m_readTimer(ioService),
|
|
m_writeTimer(ioService),
|
|
m_state(STATE_CLOSED)
|
|
{
|
|
logTrace();
|
|
}
|
|
|
|
Connection::~Connection()
|
|
{
|
|
logTrace();
|
|
}
|
|
|
|
void Connection::poll()
|
|
{
|
|
ioService.poll();
|
|
ioService.reset();
|
|
}
|
|
|
|
void Connection::close()
|
|
{
|
|
logTrace();
|
|
ioService.post(boost::bind(&Connection::internalCloseConnection, shared_from_this()));
|
|
}
|
|
|
|
void Connection::internalCloseConnection()
|
|
{
|
|
if(m_state != STATE_CLOSED) {
|
|
m_pendingRead = 0;
|
|
m_pendingWrite = 0;
|
|
|
|
m_resolver.cancel();
|
|
m_readTimer.cancel();
|
|
m_writeTimer.cancel();
|
|
|
|
g_dispatcher.addTask(m_closeCallback);
|
|
|
|
if(m_socket.is_open()) {
|
|
boost::system::error_code error;
|
|
m_socket->shutdown(boost::asio::ip::tcp::socket::shutdown_both, error);
|
|
|
|
if(error) {
|
|
if(error == boost::asio::error::not_connected) {
|
|
//Transport endpoint is not connected.
|
|
} else {
|
|
logError("shutdown socket error = %s", error.message());
|
|
}
|
|
}
|
|
|
|
m_socket->close(error);
|
|
|
|
if(error) {
|
|
logError("close socket error = %s", error.message());
|
|
}
|
|
}
|
|
m_state = STATE_CLOSED;
|
|
}
|
|
}
|
|
|
|
bool Connection::connect(const std::string& host, uint16 port, const Callback& callback)
|
|
{
|
|
logTrace();
|
|
|
|
if(m_state != STATE_CLOSED) {
|
|
logTraceError("connection not closed");
|
|
return false;
|
|
}
|
|
|
|
m_connectCallback = callback;
|
|
boost::asio::ip::tcp::resolver::query query(ip, convertType<std::string>(port));
|
|
m_resolver.async_resolve(query, boost::bind(&Connection::onResolveDns, shared_from_this(), boost::asio::placeholders::error, boost::asio::placeholders::iterator));
|
|
return true;
|
|
}
|
|
|
|
void Connection::onResolveDns(const boost::system::error_code& error, boost::asio::ip::tcp::resolver::iterator endpointIt)
|
|
{
|
|
logTrace();
|
|
if(error) {
|
|
handleError(error);
|
|
return;
|
|
} else {
|
|
|
|
m_socket.async_connect(*endpointIt, boost::bind(&Connection::onConnect, shared_from_this(), boost::asio::placeholders::error));
|
|
}
|
|
|
|
void Connection::onConnect(const boost::system::error_code& error)
|
|
{
|
|
logTrace();
|
|
if(error) {
|
|
handleError(error);
|
|
return;
|
|
}
|
|
|
|
m_state = STATE_OPEN;
|
|
|
|
if(m_connectCallback)
|
|
g_dispatcher.addTask(m_connectCallback);
|
|
|
|
recvNext();
|
|
}
|
|
|
|
void Connection::recvNext()
|
|
{
|
|
logTrace();
|
|
++m_pendingRead;
|
|
m_readTimer.expires_from_now(boost::posix_time::seconds(READ_TIMEOUT));
|
|
m_readTimer.async_wait(boost::bind(&Connection::handleReadTimeout,
|
|
boost::weak_ptr<Connection>(shared_from_this()),
|
|
boost::asio::placeholders::error));
|
|
|
|
static InputMessage inputMessage;
|
|
boost::asio::async_read(*m_socket,
|
|
boost::asio::buffer(inputMessage->getBuffer(), InputMessage::HEADER_LENGTH),
|
|
boost::bind(&Connection::parseHeader, shared_from_this(), inputMessage, boost::asio::placeholders::error));
|
|
}
|
|
|
|
void Connection::parseHeader(const InputMessage& inputMessage, const boost::system::error_code& error)
|
|
{
|
|
logTrace();
|
|
|
|
--m_pendingRead;
|
|
m_readTimer.cancel();
|
|
|
|
if(error && !handleReadError(error))
|
|
return;
|
|
|
|
uint16_t size = inputMessage->decodeHeader();
|
|
if(size <= 0 || size + 2 > InputMessage::INPUTMESSAGE_MAXSIZE) {
|
|
internalCloseConnection();
|
|
return;
|
|
}
|
|
|
|
try {
|
|
++m_pendingRead;
|
|
m_readTimer.expires_from_now(boost::posix_time::seconds(Connection::read_timeout));
|
|
m_readTimer.async_wait(boost::bind(&Connection::handleReadTimeout, boost::weak_ptr<Connection>(shared_from_this()),
|
|
boost::asio::placeholders::error));
|
|
|
|
inputMessage->setMessageLength(size + InputMessage::HEADER_LENGTH);
|
|
boost::asio::async_read(*m_socket, boost::asio::buffer(inputMessage->getBuffer() + InputMessage::HEADER_LENGTH, size),
|
|
boost::bind(&Connection::parsePacket, shared_from_this(), inputMessage, boost::asio::placeholders::error));
|
|
} catch(boost::system::system_error& e) {
|
|
logError("async read error = " << e.what());
|
|
internalCloseConnection();
|
|
}
|
|
}
|
|
|
|
void Connection::parsePacket(const InputMessage& inputMessage, const boost::system::error_code& error)
|
|
{
|
|
logTrace();
|
|
|
|
--m_pendingRead;
|
|
m_readTimer.cancel();
|
|
|
|
if(error && !handleReadError(error))
|
|
return;
|
|
|
|
//g_dispatcher.addTask(boost);
|
|
}
|
|
|
|
void Connection::handleError(const boost::system::error_code& error)
|
|
{
|
|
logTrace();
|
|
|
|
internalCloseConnection();
|
|
m_errorCallback(error);
|
|
}
|
|
|
|
void Connection::send(const NetworkMessage& networkMessage, const ConnectionCallback& onSend)
|
|
{
|
|
logTrace();
|
|
|
|
boost::asio::async_write(m_socket,
|
|
boost::asio::buffer(networkMessage.getBuffer(), NetworkMessage::header_length),
|
|
boost::bind(&Connection::onSendHeader, shared_from_this(), networkMessage, onSend, boost::asio::placeholders::error));
|
|
}
|
|
|
|
void Connection::recv(const RecvCallback& onRecv)
|
|
{
|
|
logTrace();
|
|
|
|
static NetworkMessage networkMessage;
|
|
boost::asio::async_read(m_socket,
|
|
boost::asio::buffer(networkMessage.getBuffer(), NetworkMessage::header_length),
|
|
boost::bind(&Connection::onRecvHeader, shared_from_this(), networkMessage, onRecv, boost::asio::placeholders::error));
|
|
}
|
|
|
|
void Connection::onRecvHeader(const NetworkMessage& networkMessage, const RecvCallback& onRecv, const boost::system::error_code& error)
|
|
{
|
|
logTrace();
|
|
|
|
if(error) {
|
|
handleError(error);
|
|
return;
|
|
}
|
|
|
|
boost::asio::async_read(m_socket,
|
|
boost::asio::buffer(networkMessage.getBodyBuffer(), networkMessage.getMessageLength()),
|
|
boost::bind(&Connection::onRecvBody, shared_from_this(), networkMessage, onRecv, boost::asio::placeholders::error));
|
|
}
|
|
|
|
void Connection::onRecvBody(const NetworkMessage& networkMessage, const RecvCallback& onRecv, const boost::system::error_code& error)
|
|
{
|
|
logTrace();
|
|
|
|
if(error){
|
|
handleError(error);
|
|
return;
|
|
}
|
|
|
|
onRecv(networkMessage);
|
|
}
|
|
|
|
void Connection::onSendHeader(const NetworkMessage& networkMessage, const ConnectionCallback& onSend, const boost::system::error_code& error)
|
|
{
|
|
logTrace();
|
|
|
|
if(error){
|
|
handleError(error);
|
|
return;
|
|
}
|
|
|
|
boost::asio::async_write(m_socket,
|
|
boost::asio::buffer(networkMessage.getBodyBuffer(), networkMessage.getMessageLength()),
|
|
boost::bind(&Connection::onSendBody, shared_from_this(), networkMessage, onSend, boost::asio::placeholders::error));
|
|
}
|
|
|
|
void Connection::onSendBody(const NetworkMessage& networkMessage, const ConnectionCallback& onSend, const boost::system::error_code& error)
|
|
{
|
|
logTrace();
|
|
|
|
if(error) {
|
|
handleError(error);
|
|
return;
|
|
}
|
|
|
|
onSend();
|
|
}
|