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/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#include "HandshakeMessage.h"
#include "PeerInteraction.h"
#include "PeerMessageUtil.h"
#include "Util.h"
HandshakeMessage::HandshakeMessage() {
init();
}
HandshakeMessage::HandshakeMessage(const unsigned char* infoHash,
const char* peerId)
{
init();
memcpy(this->infoHash, infoHash, INFO_HASH_LENGTH);
memcpy(this->peerId, peerId, PEER_ID_LENGTH);
}
void HandshakeMessage::init() {
this->pstrlen = 19;
this->pstr = PSTR;
memset(this->reserved, 0, sizeof(this->reserved));
// fast extension
this->reserved[7] |= 0x04;
}
HandshakeMessage* HandshakeMessage::create(const char* data, int dataLength) {
HandshakeMessage* message = new HandshakeMessage();
message->pstrlen = data[0];
char pstrTemp[20];
memcpy(pstrTemp, &data[1], sizeof(pstrTemp)-1);
pstrTemp[sizeof(pstrTemp)-1] = '\0';
message->pstr = pstrTemp;
memcpy(message->reserved, &data[20], 8);
memcpy(message->infoHash, &data[28], 20);
memcpy(message->peerId, &data[48], 20);
return message;
}
const char* HandshakeMessage::getMessage() {
if(!inProgress) {
msg[0] = pstrlen;
memcpy(msg+1, pstr.c_str(), pstr.size());
memcpy(msg+20, reserved, 8);
memcpy(msg+28, infoHash, 20);
memcpy(msg+48, peerId, 20);
}
return msg;
}
int HandshakeMessage::getMessageLength() {
return sizeof(msg);
}
string HandshakeMessage::toString() const {
return "handshake peerId="+
Util::urlencode((unsigned char*)peerId, sizeof(peerId))+
" reserved="+Util::toHex(reserved, sizeof(reserved));
}
void HandshakeMessage::check() const {
PeerMessageUtil::checkHandshake(this,
peerInteraction->getTorrentMan()->getInfoHash());
}
bool HandshakeMessage::isFastExtensionSupported() const {
return reserved[7]&0x04;
}
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