mirror of https://github.com/aria2/aria2
140 lines
4.3 KiB
C++
140 lines
4.3 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "BtPortMessage.h"
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#include "PeerMessageUtil.h"
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#include "DlAbortEx.h"
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#include "Util.h"
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#include "message.h"
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#include "Logger.h"
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#include "Peer.h"
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#include "DHTNode.h"
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#include "DHTRoutingTable.h"
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#include "DHTTaskQueue.h"
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#include "DHTTaskFactory.h"
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#include "DHTTask.h"
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#include "StringFormat.h"
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namespace aria2 {
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BtPortMessage::BtPortMessage(uint16_t port): _port(port), _msg(0) {}
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BtPortMessage::~BtPortMessage()
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{
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delete [] _msg;
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}
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SharedHandle<BtPortMessage> BtPortMessage::create(const unsigned char* data, size_t dataLength)
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{
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if(dataLength != 3) {
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throw DlAbortEx
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(StringFormat(EX_INVALID_PAYLOAD_SIZE, "port", dataLength, 3).str());
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}
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uint8_t id = PeerMessageUtil::getId(data);
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if(id != ID) {
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throw DlAbortEx
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(StringFormat(EX_INVALID_BT_MESSAGE_ID, id, "piece", ID).str());
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}
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uint16_t port = PeerMessageUtil::getShortIntParam(data, 1);
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SharedHandle<BtPortMessage> message(new BtPortMessage(port));
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return message;
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}
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void BtPortMessage::doReceivedAction()
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{
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if(!_taskFactory.isNull() && !_taskQueue.isNull()) {
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// node id is random at this point. When ping reply received, new DHTNode
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// instance created with proper node ID and is added to a routing table.
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SharedHandle<DHTNode> node(new DHTNode());
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node->setIPAddress(peer->ipaddr);
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node->setPort(_port);
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{
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SharedHandle<DHTTask> task = _taskFactory->createPingTask(node);
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_taskQueue->addImmediateTask(task);
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}
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if(_routingTable->countBucket() == 1) {
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// initiate bootstrap
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logger->info("Dispatch node_lookup since too few buckets.");
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_taskQueue->addImmediateTask(_taskFactory->createNodeLookupTask(_localNode->getID()));
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}
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} else {
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logger->info("DHT port message received while localhost didn't declare support it.");
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}
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}
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const unsigned char* BtPortMessage::getMessage() {
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if(!_msg) {
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/**
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* len --- 5, 4bytes
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* id --- 4, 1byte
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* port --- port number, 2bytes
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* total: 7bytes
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*/
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_msg = new unsigned char[MESSAGE_LENGTH];
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PeerMessageUtil::createPeerMessageString(_msg, MESSAGE_LENGTH, 3, ID);
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PeerMessageUtil::setShortIntParam(&_msg[5], _port);
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}
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return _msg;
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}
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size_t BtPortMessage::getMessageLength() {
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return MESSAGE_LENGTH;
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}
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std::string BtPortMessage::toString() const {
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return "port port="+Util::uitos(_port);
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}
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void BtPortMessage::setLocalNode(const WeakHandle<DHTNode>& localNode)
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{
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_localNode = localNode;
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}
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void BtPortMessage::setRoutingTable(const WeakHandle<DHTRoutingTable>& routingTable)
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{
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_routingTable = routingTable;
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}
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void BtPortMessage::setTaskQueue(const WeakHandle<DHTTaskQueue>& taskQueue)
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{
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_taskQueue = taskQueue;
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}
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void BtPortMessage::setTaskFactory(const WeakHandle<DHTTaskFactory>& taskFactory)
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{
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_taskFactory = taskFactory;
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}
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} // namespace aria2
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