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aria2/src/BtSetup.cc

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/* <!-- 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 "BtSetup.h"
#include <cstring>
#include "RequestGroup.h"
#include "DownloadEngine.h"
#include "Option.h"
#include "BtRegistry.h"
#include "PeerListenCommand.h"
#include "TrackerWatcherCommand.h"
#include "SeedCheckCommand.h"
#include "PeerChokeCommand.h"
#include "ActivePeerConnectionCommand.h"
#include "PeerListenCommand.h"
#include "UnionSeedCriteria.h"
#include "TimeSeedCriteria.h"
#include "ShareRatioSeedCriteria.h"
#include "prefs.h"
#include "LogFactory.h"
#include "Logger.h"
#include "util.h"
#include "SegList.h"
#include "DHTGetPeersCommand.h"
#include "DHTPeerAnnounceStorage.h"
#include "DHTSetup.h"
#include "DHTRegistry.h"
#include "DHTNode.h"
#include "DHTRoutingTable.h"
#include "DHTTaskQueue.h"
#include "DHTTaskFactory.h"
#include "DHTTokenTracker.h"
#include "DHTMessageDispatcher.h"
#include "DHTMessageReceiver.h"
#include "DHTMessageFactory.h"
#include "DHTMessageCallback.h"
#include "UDPTrackerClient.h"
#include "BtProgressInfoFile.h"
#include "BtAnnounce.h"
#include "BtRuntime.h"
#include "bittorrent_helper.h"
#include "BtStopDownloadCommand.h"
#include "LpdReceiveMessageCommand.h"
#include "LpdDispatchMessageCommand.h"
#include "LpdMessageReceiver.h"
#include "LpdMessageDispatcher.h"
#include "message.h"
#include "SocketCore.h"
#include "DlAbortEx.h"
#include "array_fun.h"
#include "DownloadContext.h"
#include "PieceStorage.h"
#include "PeerStorage.h"
#include "fmt.h"
namespace aria2 {
BtSetup::BtSetup() {}
void BtSetup::setup(std::vector<std::unique_ptr<Command>>& commands,
RequestGroup* requestGroup, DownloadEngine* e,
const Option* option)
{
if (!requestGroup->getDownloadContext()->hasAttribute(CTX_ATTR_BT)) {
return;
}
auto torrentAttrs =
bittorrent::getTorrentAttrs(requestGroup->getDownloadContext());
bool metadataGetMode = torrentAttrs->metadata.empty();
auto& btReg = e->getBtRegistry();
auto btObject = btReg->get(requestGroup->getGID());
auto& pieceStorage = btObject->pieceStorage;
auto& peerStorage = btObject->peerStorage;
auto& btRuntime = btObject->btRuntime;
auto& btAnnounce = btObject->btAnnounce;
// commands
{
auto c = make_unique<TrackerWatcherCommand>(e->newCUID(), requestGroup, e);
c->setPeerStorage(peerStorage);
c->setPieceStorage(pieceStorage);
c->setBtRuntime(btRuntime);
c->setBtAnnounce(btAnnounce);
commands.push_back(std::move(c));
}
if (!metadataGetMode) {
auto c = make_unique<PeerChokeCommand>(e->newCUID(), e);
c->setPeerStorage(peerStorage);
c->setBtRuntime(btRuntime);
commands.push_back(std::move(c));
}
{
auto c = make_unique<ActivePeerConnectionCommand>(
e->newCUID(), requestGroup, e, metadataGetMode ? 2_s : 10_s);
c->setBtRuntime(btRuntime);
c->setPieceStorage(pieceStorage);
c->setPeerStorage(peerStorage);
c->setBtAnnounce(btAnnounce);
commands.push_back(std::move(c));
}
if (metadataGetMode || !torrentAttrs->privateTorrent) {
if (DHTRegistry::isInitialized()) {
auto command =
make_unique<DHTGetPeersCommand>(e->newCUID(), requestGroup, e);
command->setTaskQueue(DHTRegistry::getData().taskQueue.get());
command->setTaskFactory(DHTRegistry::getData().taskFactory.get());
command->setBtRuntime(btRuntime);
command->setPeerStorage(peerStorage);
commands.push_back(std::move(command));
}
if (DHTRegistry::isInitialized6()) {
auto command =
make_unique<DHTGetPeersCommand>(e->newCUID(), requestGroup, e);
command->setTaskQueue(DHTRegistry::getData6().taskQueue.get());
command->setTaskFactory(DHTRegistry::getData6().taskFactory.get());
command->setBtRuntime(btRuntime);
command->setPeerStorage(peerStorage);
commands.push_back(std::move(command));
}
}
if (!metadataGetMode) {
auto unionCri = make_unique<UnionSeedCriteria>();
if (option->defined(PREF_SEED_TIME)) {
unionCri->addSeedCriteria(make_unique<TimeSeedCriteria>(
std::chrono::seconds(option->getAsInt(PREF_SEED_TIME) * 60)));
}
{
double ratio = option->getAsDouble(PREF_SEED_RATIO);
if (ratio > 0.0) {
auto cri = make_unique<ShareRatioSeedCriteria>(
option->getAsDouble(PREF_SEED_RATIO),
requestGroup->getDownloadContext());
cri->setPieceStorage(pieceStorage);
cri->setBtRuntime(btRuntime);
unionCri->addSeedCriteria(std::move(cri));
}
}
if (!unionCri->getSeedCriterion().empty()) {
auto c = make_unique<SeedCheckCommand>(e->newCUID(), requestGroup, e,
std::move(unionCri));
c->setPieceStorage(pieceStorage);
c->setBtRuntime(btRuntime);
commands.push_back(std::move(c));
}
}
if (btReg->getTcpPort() == 0) {
static int families[] = {AF_INET, AF_INET6};
size_t familiesLength =
e->getOption()->getAsBool(PREF_DISABLE_IPV6) ? 1 : 2;
for (size_t i = 0; i < familiesLength; ++i) {
auto command =
make_unique<PeerListenCommand>(e->newCUID(), e, families[i]);
bool ret;
uint16_t port;
if (btReg->getTcpPort()) {
SegList<int> sgl;
int usedPort = btReg->getTcpPort();
sgl.add(usedPort, usedPort + 1);
ret = command->bindPort(port, sgl);
}
else {
auto sgl =
util::parseIntSegments(e->getOption()->get(PREF_LISTEN_PORT));
sgl.normalize();
ret = command->bindPort(port, sgl);
}
if (ret) {
btReg->setTcpPort(port);
// Add command to DownloadEngine directly.
e->addCommand(std::move(command));
}
}
if (btReg->getTcpPort() == 0) {
throw DL_ABORT_EX(_("Errors occurred while binding port.\n"));
}
}
btAnnounce->setTcpPort(btReg->getTcpPort());
if (option->getAsBool(PREF_BT_ENABLE_LPD) && btReg->getTcpPort() &&
(metadataGetMode || !torrentAttrs->privateTorrent)) {
if (!btReg->getLpdMessageReceiver()) {
A2_LOG_INFO("Initializing LpdMessageReceiver.");
auto receiver = std::make_shared<LpdMessageReceiver>(LPD_MULTICAST_ADDR,
LPD_MULTICAST_PORT);
bool initialized = false;
const std::string& lpdInterface =
e->getOption()->get(PREF_BT_LPD_INTERFACE);
if (lpdInterface.empty()) {
if (receiver->init("")) {
initialized = true;
}
}
else {
auto ifAddrs = SocketCore::getInterfaceAddress(lpdInterface, AF_INET,
AI_NUMERICHOST);
for (const auto& soaddr : ifAddrs) {
char host[NI_MAXHOST];
if (inetNtop(AF_INET, &soaddr.su.in.sin_addr, host, sizeof(host)) ==
0 &&
receiver->init(host)) {
initialized = true;
break;
}
}
}
if (initialized) {
btReg->setLpdMessageReceiver(receiver);
A2_LOG_INFO(fmt("LpdMessageReceiver initialized. multicastAddr=%s:%u,"
" localAddr=%s",
LPD_MULTICAST_ADDR, LPD_MULTICAST_PORT,
receiver->getLocalAddress().c_str()));
e->addCommand(
make_unique<LpdReceiveMessageCommand>(e->newCUID(), receiver, e));
}
else {
A2_LOG_INFO("LpdMessageReceiver not initialized.");
}
}
if (btReg->getLpdMessageReceiver()) {
const unsigned char* infoHash =
bittorrent::getInfoHash(requestGroup->getDownloadContext());
A2_LOG_INFO("Initializing LpdMessageDispatcher.");
auto dispatcher = std::make_shared<LpdMessageDispatcher>(
std::string(&infoHash[0], &infoHash[INFO_HASH_LENGTH]),
btReg->getTcpPort(), LPD_MULTICAST_ADDR, LPD_MULTICAST_PORT);
if (dispatcher->init(btReg->getLpdMessageReceiver()->getLocalAddress(),
/*ttl*/ 1, /*loop*/ 1)) {
A2_LOG_INFO("LpdMessageDispatcher initialized.");
auto cmd =
make_unique<LpdDispatchMessageCommand>(e->newCUID(), dispatcher, e);
cmd->setBtRuntime(btRuntime);
e->addCommand(std::move(cmd));
}
else {
A2_LOG_INFO("LpdMessageDispatcher not initialized.");
}
}
}
auto btStopTimeout = option->getAsInt(PREF_BT_STOP_TIMEOUT);
if (btStopTimeout > 0) {
auto stopDownloadCommand = make_unique<BtStopDownloadCommand>(
e->newCUID(), requestGroup, e, std::chrono::seconds(btStopTimeout));
stopDownloadCommand->setBtRuntime(btRuntime);
stopDownloadCommand->setPieceStorage(pieceStorage);
commands.push_back(std::move(stopDownloadCommand));
}
btRuntime->setReady(true);
}
} // namespace aria2
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