112 lines
3.7 KiB
C++
112 lines
3.7 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 "DHTGetPeersMessage.h"
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#include <cstring>
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#include "DHTNode.h"
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#include "DHTRoutingTable.h"
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#include "DHTMessageFactory.h"
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#include "DHTMessageDispatcher.h"
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#include "DHTMessageCallback.h"
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#include "DHTPeerAnnounceStorage.h"
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#include "Peer.h"
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#include "DHTTokenTracker.h"
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#include "DHTGetPeersReplyMessage.h"
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#include "util.h"
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namespace aria2 {
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const std::string DHTGetPeersMessage::GET_PEERS("get_peers");
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const std::string DHTGetPeersMessage::INFO_HASH("info_hash");
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DHTGetPeersMessage::DHTGetPeersMessage
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(const std::shared_ptr<DHTNode>& localNode,
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const std::shared_ptr<DHTNode>& remoteNode,
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const unsigned char* infoHash,
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const std::string& transactionID)
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: DHTQueryMessage{localNode, remoteNode, transactionID},
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peerAnnounceStorage_{nullptr},
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tokenTracker_{nullptr}
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{
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memcpy(infoHash_, infoHash, DHT_ID_LENGTH);
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}
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void DHTGetPeersMessage::doReceivedAction()
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{
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std::string token = tokenTracker_->generateToken
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(infoHash_, getRemoteNode()->getIPAddress(), getRemoteNode()->getPort());
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// Check to see localhost has the contents which has same infohash
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std::vector<std::shared_ptr<Peer>> peers;
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peerAnnounceStorage_->getPeers(peers, infoHash_);
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std::vector<std::shared_ptr<DHTNode>> nodes;
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getRoutingTable()->getClosestKNodes(nodes, infoHash_);
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getMessageDispatcher()->addMessageToQueue
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(getMessageFactory()->createGetPeersReplyMessage
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(getRemoteNode(), std::move(nodes), std::move(peers), token,
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getTransactionID()));
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}
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std::unique_ptr<Dict> DHTGetPeersMessage::getArgument()
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{
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auto aDict = Dict::g();
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aDict->put(DHTMessage::ID, String::g(getLocalNode()->getID(), DHT_ID_LENGTH));
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aDict->put(INFO_HASH, String::g(infoHash_, DHT_ID_LENGTH));
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return aDict;
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}
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const std::string& DHTGetPeersMessage::getMessageType() const
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{
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return GET_PEERS;
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}
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void DHTGetPeersMessage::setPeerAnnounceStorage(DHTPeerAnnounceStorage* storage)
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{
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peerAnnounceStorage_ = storage;
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}
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void DHTGetPeersMessage::setTokenTracker(DHTTokenTracker* tokenTracker)
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{
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tokenTracker_ = tokenTracker;
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}
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std::string DHTGetPeersMessage::toStringOptional() const
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{
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return "info_hash="+util::toHex(infoHash_, INFO_HASH_LENGTH);
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}
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} // namespace aria2
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