mirror of https://github.com/aria2/aria2
89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - a simple utility for downloading files faster
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* copyright --> */
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#include "HandshakeMessage.h"
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#include "PeerInteraction.h"
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#include "PeerMessageUtil.h"
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#include "Util.h"
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HandshakeMessage::HandshakeMessage() {
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init();
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}
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HandshakeMessage::HandshakeMessage(const unsigned char* infoHash,
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const char* peerId)
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{
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init();
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memcpy(this->infoHash, infoHash, INFO_HASH_LENGTH);
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memcpy(this->peerId, peerId, PEER_ID_LENGTH);
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}
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void HandshakeMessage::init() {
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this->pstrlen = 19;
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this->pstr = PSTR;
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memset(this->reserved, 0, sizeof(this->reserved));
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// fast extension
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this->reserved[7] |= 0x04;
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}
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HandshakeMessage* HandshakeMessage::create(const char* data, int dataLength) {
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HandshakeMessage* message = new HandshakeMessage();
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message->pstrlen = data[0];
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char pstrTemp[20];
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memcpy(pstrTemp, &data[1], sizeof(pstrTemp)-1);
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pstrTemp[sizeof(pstrTemp)-1] = '\0';
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message->pstr = pstrTemp;
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memcpy(message->reserved, &data[20], 8);
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memcpy(message->infoHash, &data[28], 20);
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memcpy(message->peerId, &data[48], 20);
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return message;
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}
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const char* HandshakeMessage::getMessage() {
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if(!inProgress) {
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msg[0] = pstrlen;
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memcpy(msg+1, pstr.c_str(), pstr.size());
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memcpy(msg+20, reserved, 8);
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memcpy(msg+28, infoHash, 20);
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memcpy(msg+48, peerId, 20);
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}
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return msg;
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}
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int HandshakeMessage::getMessageLength() {
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return sizeof(msg);
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}
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string HandshakeMessage::toString() const {
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return "handshake peerId="+
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Util::urlencode(peerId, sizeof(peerId))+
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" reserved="+Util::toHex(reserved, sizeof(reserved));
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}
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void HandshakeMessage::check() const {
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PeerMessageUtil::checkHandshake(this,
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peerInteraction->getTorrentMan()->getInfoHash());
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}
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bool HandshakeMessage::isFastExtensionSupported() const {
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return reserved[7]&0x04;
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}
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