mirror of https://github.com/aria2/aria2
143 lines
4.4 KiB
C++
143 lines
4.4 KiB
C++
/* <!-- copyright */
|
|
/*
|
|
* aria2 - The high speed download utility
|
|
*
|
|
* Copyright (C) 2006 Tatsuhiro Tsujikawa
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*
|
|
* In addition, as a special exception, the copyright holders give
|
|
* permission to link the code of portions of this program with the
|
|
* OpenSSL library under certain conditions as described in each
|
|
* individual source file, and distribute linked combinations
|
|
* including the two.
|
|
* You must obey the GNU General Public License in all respects
|
|
* for all of the code used other than OpenSSL. If you modify
|
|
* file(s) with this exception, you may extend this exception to your
|
|
* version of the file(s), but you are not obligated to do so. If you
|
|
* do not wish to do so, delete this exception statement from your
|
|
* version. If you delete this exception statement from all source
|
|
* files in the program, then also delete it here.
|
|
*/
|
|
/* copyright --> */
|
|
#include "DefaultBtMessageReceiver.h"
|
|
|
|
#include <cstring>
|
|
|
|
#include "BtHandshakeMessage.h"
|
|
#include "message.h"
|
|
#include "BtContext.h"
|
|
#include "Peer.h"
|
|
#include "PeerConnection.h"
|
|
#include "BtMessageDispatcher.h"
|
|
#include "BtMessageFactory.h"
|
|
#include "Logger.h"
|
|
#include "LogFactory.h"
|
|
|
|
namespace aria2 {
|
|
|
|
DefaultBtMessageReceiver::DefaultBtMessageReceiver():
|
|
cuid(0),
|
|
handshakeSent(false),
|
|
logger(LogFactory::getInstance())
|
|
{
|
|
logger->debug("DefaultBtMessageReceiver::instantiated");
|
|
}
|
|
|
|
DefaultBtMessageReceiver::~DefaultBtMessageReceiver()
|
|
{
|
|
logger->debug("DefaultBtMessageReceiver::deleted");
|
|
}
|
|
|
|
SharedHandle<BtHandshakeMessage>
|
|
DefaultBtMessageReceiver::receiveHandshake(bool quickReply)
|
|
{
|
|
unsigned char data[BtHandshakeMessage::MESSAGE_LENGTH];
|
|
size_t dataLength = BtHandshakeMessage::MESSAGE_LENGTH;
|
|
bool retval = peerConnection->receiveHandshake(data, dataLength);
|
|
// To handle tracker's NAT-checking feature
|
|
if(!handshakeSent && quickReply && dataLength >= 48) {
|
|
handshakeSent = true;
|
|
// check info_hash
|
|
if(memcmp(btContext->getInfoHash(), &data[28], INFO_HASH_LENGTH) == 0) {
|
|
sendHandshake();
|
|
}
|
|
}
|
|
if(!retval) {
|
|
return SharedHandle<BtHandshakeMessage>();
|
|
}
|
|
SharedHandle<BtHandshakeMessage> msg = messageFactory->createHandshakeMessage(data, dataLength);
|
|
std::deque<std::string> errors;
|
|
msg->validate(errors);
|
|
return msg;
|
|
}
|
|
|
|
SharedHandle<BtHandshakeMessage>
|
|
DefaultBtMessageReceiver::receiveAndSendHandshake()
|
|
{
|
|
return receiveHandshake(true);
|
|
}
|
|
|
|
void DefaultBtMessageReceiver::sendHandshake() {
|
|
SharedHandle<BtMessage> msg =
|
|
messageFactory->createHandshakeMessage(btContext->getInfoHash(),
|
|
btContext->getPeerId());
|
|
dispatcher->addMessageToQueue(msg);
|
|
dispatcher->sendMessages();
|
|
}
|
|
|
|
BtMessageHandle DefaultBtMessageReceiver::receiveMessage() {
|
|
unsigned char data[MAX_PAYLOAD_LEN];
|
|
size_t dataLength = 0;
|
|
if(!peerConnection->receiveMessage(data, dataLength)) {
|
|
return SharedHandle<BtMessage>();
|
|
}
|
|
BtMessageHandle msg = messageFactory->createBtMessage(data, dataLength);
|
|
std::deque<std::string> errors;
|
|
if(msg->validate(errors)) {
|
|
return msg;
|
|
} else {
|
|
// TODO throw exception here based on errors;
|
|
return SharedHandle<BtMessage>();
|
|
}
|
|
}
|
|
|
|
void DefaultBtMessageReceiver::setBtContext(const SharedHandle<BtContext>& btContext)
|
|
{
|
|
this->btContext = btContext;
|
|
}
|
|
|
|
void DefaultBtMessageReceiver::setPeer(const SharedHandle<Peer>& peer)
|
|
{
|
|
this->peer = peer;
|
|
}
|
|
|
|
void DefaultBtMessageReceiver::setPeerConnection(const WeakHandle<PeerConnection>& peerConnection)
|
|
{
|
|
this->peerConnection = peerConnection;
|
|
}
|
|
|
|
void DefaultBtMessageReceiver::setDispatcher(const WeakHandle<BtMessageDispatcher>& dispatcher)
|
|
{
|
|
this->dispatcher = dispatcher;
|
|
}
|
|
|
|
void DefaultBtMessageReceiver::setBtMessageFactory(const WeakHandle<BtMessageFactory>& factory)
|
|
{
|
|
this->messageFactory = factory;
|
|
}
|
|
|
|
} // namespace aria2
|