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session.cpp
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/*
* Bittorrent Client using Qt and libtorrent.
* Copyright (C) 2015 Vladimir Golovnev <glassez@yandex.ru>
* Copyright (C) 2006 Christophe Dumez <chris@qbittorrent.org>
*
* 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 this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. 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), 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.
*/
#include "session.h"
#include <algorithm>
#include <queue>
#include <string>
#include <utility>
#ifdef Q_OS_WIN
#include <Windows.h>
#include <wincrypt.h>
#include <iphlpapi.h>
#endif
#include <QDebug>
#include <QDir>
#include <QFile>
#include <QHostAddress>
#include <QNetworkAddressEntry>
#include <QNetworkConfigurationManager>
#include <QNetworkInterface>
#include <QRegularExpression>
#include <QString>
#include <QThread>
#include <QTimer>
#include <QUuid>
#include <libtorrent/alert_types.hpp>
#include <libtorrent/bdecode.hpp>
#include <libtorrent/bencode.hpp>
#include <libtorrent/error_code.hpp>
#include <libtorrent/extensions/ut_metadata.hpp>
#include <libtorrent/extensions/ut_pex.hpp>
#include <libtorrent/extensions/smart_ban.hpp>
#include <libtorrent/ip_filter.hpp>
#include <libtorrent/magnet_uri.hpp>
#include <libtorrent/session.hpp>
#include <libtorrent/session_stats.hpp>
#include <libtorrent/session_status.hpp>
#include <libtorrent/torrent_info.hpp>
#include <libtorrent/version.hpp>
#if (LIBTORRENT_VERSION_NUM >= 10200)
#include <libtorrent/read_resume_data.hpp>
#endif
#include "base/algorithm.h"
#include "base/exceptions.h"
#include "base/global.h"
#include "base/logger.h"
#include "base/net/downloadmanager.h"
#include "base/net/proxyconfigurationmanager.h"
#include "base/profile.h"
#include "base/torrentfileguard.h"
#include "base/torrentfilter.h"
#include "base/unicodestrings.h"
#include "base/utils/fs.h"
#include "base/utils/misc.h"
#include "base/utils/net.h"
#include "base/utils/random.h"
#include "magneturi.h"
#include "private/bandwidthscheduler.h"
#include "private/filterparserthread.h"
#include "private/ltunderlyingtype.h"
#include "private/portforwarderimpl.h"
#include "private/resumedatasavingmanager.h"
#include "private/statistics.h"
#include "torrenthandle.h"
#include "tracker.h"
#include "trackerentry.h"
static const char PEER_ID[] = "qB";
static const char RESUME_FOLDER[] = "BT_backup";
static const char USER_AGENT[] = "qBittorrent/" QBT_VERSION_2;
using namespace BitTorrent;
namespace
{
#if (LIBTORRENT_VERSION_NUM < 10200)
using LTAlertCategory = int;
using LTPeerClass = int;
using LTQueuePosition = int;
using LTSessionFlags = int;
using LTStatusFlags = int;
using LTString = std::string;
#else
using LTAlertCategory = lt::alert_category_t;
using LTPeerClass = lt::peer_class_t;
using LTQueuePosition = lt::queue_position_t;
using LTSessionFlags = lt::session_flags_t;
using LTStatusFlags = lt::status_flags_t;
using LTString = lt::string_view;
#endif
template <typename LTStr>
QString fromLTString(const LTStr &str)
{
return QString::fromUtf8(str.data(), static_cast<int>(str.size()));
}
bool readFile(const QString &path, QByteArray &buf)
{
QFile file(path);
if (!file.open(QIODevice::ReadOnly)) {
qDebug("Cannot read file %s: %s", qUtf8Printable(path), qUtf8Printable(file.errorString()));
return false;
}
buf = file.readAll();
return true;
}
bool loadTorrentResumeData(const QByteArray &data, CreateTorrentParams &torrentParams, int &queuePos, MagnetUri &magnetUri)
{
lt::error_code ec;
#if (LIBTORRENT_VERSION_NUM < 10200)
lt::bdecode_node root;
lt::bdecode(data.constData(), (data.constData() + data.size()), root, ec);
#else
const lt::bdecode_node root = lt::bdecode(data, ec);
#endif
if (ec || (root.type() != lt::bdecode_node::dict_t)) return false;
torrentParams = CreateTorrentParams();
torrentParams.restored = true;
torrentParams.skipChecking = false;
torrentParams.name = fromLTString(root.dict_find_string_value("qBt-name"));
torrentParams.savePath = Profile::instance().fromPortablePath(
Utils::Fs::toUniformPath(fromLTString(root.dict_find_string_value("qBt-savePath"))));
torrentParams.disableTempPath = root.dict_find_int_value("qBt-tempPathDisabled");
torrentParams.sequential = root.dict_find_int_value("qBt-sequential");
torrentParams.hasSeedStatus = root.dict_find_int_value("qBt-seedStatus");
torrentParams.firstLastPiecePriority = root.dict_find_int_value("qBt-firstLastPiecePriority");
torrentParams.hasRootFolder = root.dict_find_int_value("qBt-hasRootFolder");
torrentParams.seedingTimeLimit = root.dict_find_int_value("qBt-seedingTimeLimit", TorrentHandle::USE_GLOBAL_SEEDING_TIME);
const bool isAutoManaged = root.dict_find_int_value("auto_managed");
const bool isPaused = root.dict_find_int_value("paused");
torrentParams.paused = root.dict_find_int_value("qBt-paused", (isPaused && !isAutoManaged));
torrentParams.forced = root.dict_find_int_value("qBt-forced", (!isPaused && !isAutoManaged));
const LTString ratioLimitString = root.dict_find_string_value("qBt-ratioLimit");
if (ratioLimitString.empty())
torrentParams.ratioLimit = root.dict_find_int_value("qBt-ratioLimit", TorrentHandle::USE_GLOBAL_RATIO * 1000) / 1000.0;
else
torrentParams.ratioLimit = fromLTString(ratioLimitString).toDouble();
// **************************************************************************************
// Workaround to convert legacy label to category
// TODO: Should be removed in future
torrentParams.category = fromLTString(root.dict_find_string_value("qBt-label"));
if (torrentParams.category.isEmpty())
// **************************************************************************************
torrentParams.category = fromLTString(root.dict_find_string_value("qBt-category"));
const lt::bdecode_node tagsNode = root.dict_find("qBt-tags");
if (tagsNode.type() == lt::bdecode_node::list_t) {
for (int i = 0; i < tagsNode.list_size(); ++i) {
const QString tag = fromLTString(tagsNode.list_string_value_at(i));
if (Session::isValidTag(tag))
torrentParams.tags << tag;
}
}
const lt::bdecode_node addedTimeNode = root.dict_find("qBt-addedTime");
if (addedTimeNode.type() == lt::bdecode_node::int_t)
torrentParams.addedTime = QDateTime::fromSecsSinceEpoch(addedTimeNode.int_value());
queuePos = root.dict_find_int_value("qBt-queuePosition");
magnetUri = MagnetUri(fromLTString(root.dict_find_string_value("qBt-magnetUri")));
return true;
}
void torrentQueuePositionUp(const lt::torrent_handle &handle)
{
try {
handle.queue_position_up();
}
catch (const std::exception &exc) {
qDebug() << Q_FUNC_INFO << " fails: " << exc.what();
}
}
void torrentQueuePositionDown(const lt::torrent_handle &handle)
{
try {
handle.queue_position_down();
}
catch (const std::exception &exc) {
qDebug() << Q_FUNC_INFO << " fails: " << exc.what();
}
}
void torrentQueuePositionTop(const lt::torrent_handle &handle)
{
try {
handle.queue_position_top();
}
catch (const std::exception &exc) {
qDebug() << Q_FUNC_INFO << " fails: " << exc.what();
}
}
void torrentQueuePositionBottom(const lt::torrent_handle &handle)
{
try {
handle.queue_position_bottom();
}
catch (const std::exception &exc) {
qDebug() << Q_FUNC_INFO << " fails: " << exc.what();
}
}
QStringMap map_cast(const QVariantMap &map)
{
QStringMap result;
for (auto i = map.cbegin(); i != map.cend(); ++i)
result[i.key()] = i.value().toString();
return result;
}
QVariantMap map_cast(const QStringMap &map)
{
QVariantMap result;
for (auto i = map.cbegin(); i != map.cend(); ++i)
result[i.key()] = i.value();
return result;
}
QString normalizePath(const QString &path)
{
QString tmp = Utils::Fs::toUniformPath(path.trimmed());
if (!tmp.isEmpty() && !tmp.endsWith('/'))
return tmp + '/';
return tmp;
}
QString normalizeSavePath(QString path, const QString &defaultPath = specialFolderLocation(SpecialFolder::Downloads))
{
path = path.trimmed();
if (path.isEmpty())
path = Utils::Fs::toUniformPath(defaultPath.trimmed());
return normalizePath(path);
}
QStringMap expandCategories(const QStringMap &categories)
{
QStringMap expanded = categories;
for (auto i = categories.cbegin(); i != categories.cend(); ++i) {
const QString &category = i.key();
for (const QString &subcat : asConst(Session::expandCategory(category))) {
if (!expanded.contains(subcat))
expanded[subcat] = "";
}
}
return expanded;
}
template <typename T>
struct LowerLimited
{
LowerLimited(T limit, T ret)
: m_limit(limit)
, m_ret(ret)
{
}
explicit LowerLimited(T limit)
: LowerLimited(limit, limit)
{
}
T operator()(T val) const
{
return val <= m_limit ? m_ret : val;
}
private:
const T m_limit;
const T m_ret;
};
template <typename T>
LowerLimited<T> lowerLimited(T limit) { return LowerLimited<T>(limit); }
template <typename T>
LowerLimited<T> lowerLimited(T limit, T ret) { return LowerLimited<T>(limit, ret); }
template <typename T>
std::function<T (const T&)> clampValue(const T lower, const T upper)
{
// TODO: change return type to `auto` when using C++17
return [lower, upper](const T value) -> T
{
if (value < lower)
return lower;
if (value > upper)
return upper;
return value;
};
}
#ifdef Q_OS_WIN
QString convertIfaceNameToGuid(const QString &name)
{
// Under Windows XP or on Qt version <= 5.5 'name' will be a GUID already.
const QUuid uuid(name);
if (!uuid.isNull())
return uuid.toString().toUpper(); // Libtorrent expects the GUID in uppercase
NET_LUID luid {};
const LONG res = ::ConvertInterfaceNameToLuidW(name.toStdWString().c_str(), &luid);
if (res == 0) {
GUID guid;
if (::ConvertInterfaceLuidToGuid(&luid, &guid) == 0)
return QUuid(guid).toString().toUpper();
}
return {};
}
#endif
}
// Session
Session *Session::m_instance = nullptr;
#define BITTORRENT_KEY(name) "BitTorrent/" name
#define BITTORRENT_SESSION_KEY(name) BITTORRENT_KEY("Session/") name
Session::Session(QObject *parent)
: QObject(parent)
, m_isDHTEnabled(BITTORRENT_SESSION_KEY("DHTEnabled"), true)
, m_isLSDEnabled(BITTORRENT_SESSION_KEY("LSDEnabled"), true)
, m_isPeXEnabled(BITTORRENT_SESSION_KEY("PeXEnabled"), true)
, m_isIPFilteringEnabled(BITTORRENT_SESSION_KEY("IPFilteringEnabled"), false)
, m_isTrackerFilteringEnabled(BITTORRENT_SESSION_KEY("TrackerFilteringEnabled"), false)
, m_IPFilterFile(BITTORRENT_SESSION_KEY("IPFilter"))
, m_announceToAllTrackers(BITTORRENT_SESSION_KEY("AnnounceToAllTrackers"), false)
, m_announceToAllTiers(BITTORRENT_SESSION_KEY("AnnounceToAllTiers"), true)
, m_asyncIOThreads(BITTORRENT_SESSION_KEY("AsyncIOThreadsCount"), 4)
, m_filePoolSize(BITTORRENT_SESSION_KEY("FilePoolSize"), 40)
, m_checkingMemUsage(BITTORRENT_SESSION_KEY("CheckingMemUsageSize"), 16)
, m_diskCacheSize(BITTORRENT_SESSION_KEY("DiskCacheSize"), 64)
, m_diskCacheTTL(BITTORRENT_SESSION_KEY("DiskCacheTTL"), 60)
, m_useOSCache(BITTORRENT_SESSION_KEY("UseOSCache"), true)
#ifdef Q_OS_WIN
, m_coalesceReadWriteEnabled(BITTORRENT_SESSION_KEY("CoalesceReadWrite"), true)
#else
, m_coalesceReadWriteEnabled(BITTORRENT_SESSION_KEY("CoalesceReadWrite"), false)
#endif
, m_isSuggestMode(BITTORRENT_SESSION_KEY("SuggestMode"), false)
, m_sendBufferWatermark(BITTORRENT_SESSION_KEY("SendBufferWatermark"), 500)
, m_sendBufferLowWatermark(BITTORRENT_SESSION_KEY("SendBufferLowWatermark"), 10)
, m_sendBufferWatermarkFactor(BITTORRENT_SESSION_KEY("SendBufferWatermarkFactor"), 50)
, m_socketBacklogSize(BITTORRENT_SESSION_KEY("SocketBacklogSize"), 30)
, m_isAnonymousModeEnabled(BITTORRENT_SESSION_KEY("AnonymousModeEnabled"), false)
, m_isQueueingEnabled(BITTORRENT_SESSION_KEY("QueueingSystemEnabled"), true)
, m_maxActiveDownloads(BITTORRENT_SESSION_KEY("MaxActiveDownloads"), 3, lowerLimited(-1))
, m_maxActiveUploads(BITTORRENT_SESSION_KEY("MaxActiveUploads"), 3, lowerLimited(-1))
, m_maxActiveTorrents(BITTORRENT_SESSION_KEY("MaxActiveTorrents"), 5, lowerLimited(-1))
, m_ignoreSlowTorrentsForQueueing(BITTORRENT_SESSION_KEY("IgnoreSlowTorrentsForQueueing"), false)
, m_downloadRateForSlowTorrents(BITTORRENT_SESSION_KEY("SlowTorrentsDownloadRate"), 2)
, m_uploadRateForSlowTorrents(BITTORRENT_SESSION_KEY("SlowTorrentsUploadRate"), 2)
, m_slowTorrentsInactivityTimer(BITTORRENT_SESSION_KEY("SlowTorrentsInactivityTimer"), 60)
, m_outgoingPortsMin(BITTORRENT_SESSION_KEY("OutgoingPortsMin"), 0)
, m_outgoingPortsMax(BITTORRENT_SESSION_KEY("OutgoingPortsMax"), 0)
, m_ignoreLimitsOnLAN(BITTORRENT_SESSION_KEY("IgnoreLimitsOnLAN"), true)
, m_includeOverheadInLimits(BITTORRENT_SESSION_KEY("IncludeOverheadInLimits"), false)
, m_announceIP(BITTORRENT_SESSION_KEY("AnnounceIP"))
, m_isSuperSeedingEnabled(BITTORRENT_SESSION_KEY("SuperSeedingEnabled"), false)
, m_maxConnections(BITTORRENT_SESSION_KEY("MaxConnections"), 500, lowerLimited(0, -1))
, m_maxUploads(BITTORRENT_SESSION_KEY("MaxUploads"), -1, lowerLimited(0, -1))
, m_maxConnectionsPerTorrent(BITTORRENT_SESSION_KEY("MaxConnectionsPerTorrent"), 100, lowerLimited(0, -1))
, m_maxUploadsPerTorrent(BITTORRENT_SESSION_KEY("MaxUploadsPerTorrent"), -1, lowerLimited(0, -1))
, m_btProtocol(BITTORRENT_SESSION_KEY("BTProtocol"), BTProtocol::Both
, clampValue(BTProtocol::Both, BTProtocol::UTP))
, m_isUTPRateLimited(BITTORRENT_SESSION_KEY("uTPRateLimited"), true)
, m_utpMixedMode(BITTORRENT_SESSION_KEY("uTPMixedMode"), MixedModeAlgorithm::TCP
, clampValue(MixedModeAlgorithm::TCP, MixedModeAlgorithm::Proportional))
, m_multiConnectionsPerIpEnabled(BITTORRENT_SESSION_KEY("MultiConnectionsPerIp"), false)
, m_isAddTrackersEnabled(BITTORRENT_SESSION_KEY("AddTrackersEnabled"), false)
, m_additionalTrackers(BITTORRENT_SESSION_KEY("AdditionalTrackers"))
, m_globalMaxRatio(BITTORRENT_SESSION_KEY("GlobalMaxRatio"), -1, [](qreal r) { return r < 0 ? -1. : r;})
, m_globalMaxSeedingMinutes(BITTORRENT_SESSION_KEY("GlobalMaxSeedingMinutes"), -1, lowerLimited(-1))
, m_isAddTorrentPaused(BITTORRENT_SESSION_KEY("AddTorrentPaused"), false)
, m_isCreateTorrentSubfolder(BITTORRENT_SESSION_KEY("CreateTorrentSubfolder"), true)
, m_isAppendExtensionEnabled(BITTORRENT_SESSION_KEY("AddExtensionToIncompleteFiles"), false)
, m_refreshInterval(BITTORRENT_SESSION_KEY("RefreshInterval"), 1500)
, m_isPreallocationEnabled(BITTORRENT_SESSION_KEY("Preallocation"), false)
, m_torrentExportDirectory(BITTORRENT_SESSION_KEY("TorrentExportDirectory"))
, m_finishedTorrentExportDirectory(BITTORRENT_SESSION_KEY("FinishedTorrentExportDirectory"))
, m_globalDownloadSpeedLimit(BITTORRENT_SESSION_KEY("GlobalDLSpeedLimit"), 0, lowerLimited(0))
, m_globalUploadSpeedLimit(BITTORRENT_SESSION_KEY("GlobalUPSpeedLimit"), 0, lowerLimited(0))
, m_altGlobalDownloadSpeedLimit(BITTORRENT_SESSION_KEY("AlternativeGlobalDLSpeedLimit"), 10, lowerLimited(0))
, m_altGlobalUploadSpeedLimit(BITTORRENT_SESSION_KEY("AlternativeGlobalUPSpeedLimit"), 10, lowerLimited(0))
, m_isAltGlobalSpeedLimitEnabled(BITTORRENT_SESSION_KEY("UseAlternativeGlobalSpeedLimit"), false)
, m_isBandwidthSchedulerEnabled(BITTORRENT_SESSION_KEY("BandwidthSchedulerEnabled"), false)
, m_saveResumeDataInterval(BITTORRENT_SESSION_KEY("SaveResumeDataInterval"), 60)
, m_port(BITTORRENT_SESSION_KEY("Port"), -1)
, m_useRandomPort(BITTORRENT_SESSION_KEY("UseRandomPort"), false)
, m_networkInterface(BITTORRENT_SESSION_KEY("Interface"))
, m_networkInterfaceName(BITTORRENT_SESSION_KEY("InterfaceName"))
, m_networkInterfaceAddress(BITTORRENT_SESSION_KEY("InterfaceAddress"))
, m_encryption(BITTORRENT_SESSION_KEY("Encryption"), 0)
, m_isProxyPeerConnectionsEnabled(BITTORRENT_SESSION_KEY("ProxyPeerConnections"), false)
, m_chokingAlgorithm(BITTORRENT_SESSION_KEY("ChokingAlgorithm"), ChokingAlgorithm::FixedSlots
, clampValue(ChokingAlgorithm::FixedSlots, ChokingAlgorithm::RateBased))
, m_seedChokingAlgorithm(BITTORRENT_SESSION_KEY("SeedChokingAlgorithm"), SeedChokingAlgorithm::FastestUpload
, clampValue(SeedChokingAlgorithm::RoundRobin, SeedChokingAlgorithm::AntiLeech))
, m_storedCategories(BITTORRENT_SESSION_KEY("Categories"))
, m_storedTags(BITTORRENT_SESSION_KEY("Tags"))
, m_maxRatioAction(BITTORRENT_SESSION_KEY("MaxRatioAction"), Pause)
, m_defaultSavePath(BITTORRENT_SESSION_KEY("DefaultSavePath"), specialFolderLocation(SpecialFolder::Downloads), normalizePath)
, m_tempPath(BITTORRENT_SESSION_KEY("TempPath"), defaultSavePath() + "temp/", normalizePath)
, m_isSubcategoriesEnabled(BITTORRENT_SESSION_KEY("SubcategoriesEnabled"), false)
, m_isTempPathEnabled(BITTORRENT_SESSION_KEY("TempPathEnabled"), false)
, m_isAutoTMMDisabledByDefault(BITTORRENT_SESSION_KEY("DisableAutoTMMByDefault"), true)
, m_isDisableAutoTMMWhenCategoryChanged(BITTORRENT_SESSION_KEY("DisableAutoTMMTriggers/CategoryChanged"), false)
, m_isDisableAutoTMMWhenDefaultSavePathChanged(BITTORRENT_SESSION_KEY("DisableAutoTMMTriggers/DefaultSavePathChanged"), true)
, m_isDisableAutoTMMWhenCategorySavePathChanged(BITTORRENT_SESSION_KEY("DisableAutoTMMTriggers/CategorySavePathChanged"), true)
, m_isTrackerEnabled(BITTORRENT_KEY("TrackerEnabled"), false)
, m_bannedIPs("State/BannedIPs"
, QStringList()
, [](const QStringList &value)
{
QStringList tmp = value;
tmp.sort();
return tmp;
}
)
#if defined(Q_OS_WIN)
, m_OSMemoryPriority(BITTORRENT_KEY("OSMemoryPriority"), OSMemoryPriority::BelowNormal)
#endif
, m_resumeFolderLock {new QFile {this}}
, m_refreshTimer {new QTimer {this}}
, m_seedingLimitTimer {new QTimer {this}}
, m_resumeDataTimer {new QTimer {this}}
, m_statistics {new Statistics {this}}
, m_ioThread {new QThread {this}}
, m_recentErroredTorrentsTimer {new QTimer {this}}
, m_networkManager {new QNetworkConfigurationManager {this}}
{
if (port() < 0)
m_port = Utils::Random::rand(1024, 65535);
initResumeFolder();
m_recentErroredTorrentsTimer->setSingleShot(true);
m_recentErroredTorrentsTimer->setInterval(1000);
connect(m_recentErroredTorrentsTimer, &QTimer::timeout
, this, [this]() { m_recentErroredTorrents.clear(); });
m_seedingLimitTimer->setInterval(10000);
connect(m_seedingLimitTimer, &QTimer::timeout, this, &Session::processShareLimits);
initializeNativeSession();
configureComponents();
if (isBandwidthSchedulerEnabled())
enableBandwidthScheduler();
m_categories = map_cast(m_storedCategories);
if (isSubcategoriesEnabled()) {
// if subcategories support changed manually
m_categories = expandCategories(m_categories);
m_storedCategories = map_cast(m_categories);
}
m_tags = QSet<QString>::fromList(m_storedTags.value());
m_refreshTimer->setInterval(refreshInterval());
connect(m_refreshTimer, &QTimer::timeout, this, &Session::refresh);
m_refreshTimer->start();
updateSeedingLimitTimer();
populateAdditionalTrackers();
enableTracker(isTrackerEnabled());
connect(Net::ProxyConfigurationManager::instance()
, &Net::ProxyConfigurationManager::proxyConfigurationChanged
, this, &Session::configureDeferred);
// Network configuration monitor
connect(m_networkManager, &QNetworkConfigurationManager::onlineStateChanged, this, &Session::networkOnlineStateChanged);
connect(m_networkManager, &QNetworkConfigurationManager::configurationAdded, this, &Session::networkConfigurationChange);
connect(m_networkManager, &QNetworkConfigurationManager::configurationRemoved, this, &Session::networkConfigurationChange);
connect(m_networkManager, &QNetworkConfigurationManager::configurationChanged, this, &Session::networkConfigurationChange);
m_resumeDataSavingManager = new ResumeDataSavingManager {m_resumeFolderPath};
m_resumeDataSavingManager->moveToThread(m_ioThread);
connect(m_ioThread, &QThread::finished, m_resumeDataSavingManager, &QObject::deleteLater);
m_ioThread->start();
// Regular saving of fastresume data
connect(m_resumeDataTimer, &QTimer::timeout, this, [this]() { generateResumeData(); });
const uint saveInterval = saveResumeDataInterval();
if (saveInterval > 0) {
m_resumeDataTimer->setInterval(saveInterval * 60 * 1000);
m_resumeDataTimer->start();
}
// initialize PortForwarder instance
new PortForwarderImpl {m_nativeSession};
initMetrics();
}
bool Session::isDHTEnabled() const
{
return m_isDHTEnabled;
}
void Session::setDHTEnabled(bool enabled)
{
if (enabled != m_isDHTEnabled) {
m_isDHTEnabled = enabled;
configureDeferred();
LogMsg(tr("DHT support [%1]").arg(enabled ? tr("ON") : tr("OFF")), Log::INFO);
}
}
bool Session::isLSDEnabled() const
{
return m_isLSDEnabled;
}
void Session::setLSDEnabled(const bool enabled)
{
if (enabled != m_isLSDEnabled) {
m_isLSDEnabled = enabled;
configureDeferred();
LogMsg(tr("Local Peer Discovery support [%1]").arg(enabled ? tr("ON") : tr("OFF"))
, Log::INFO);
}
}
bool Session::isPeXEnabled() const
{
return m_isPeXEnabled;
}
void Session::setPeXEnabled(const bool enabled)
{
m_isPeXEnabled = enabled;
if (m_wasPexEnabled != enabled)
LogMsg(tr("Restart is required to toggle PeX support"), Log::WARNING);
}
bool Session::isTempPathEnabled() const
{
return m_isTempPathEnabled;
}
void Session::setTempPathEnabled(const bool enabled)
{
if (enabled != isTempPathEnabled()) {
m_isTempPathEnabled = enabled;
for (TorrentHandle *const torrent : asConst(m_torrents))
torrent->handleTempPathChanged();
}
}
bool Session::isAppendExtensionEnabled() const
{
return m_isAppendExtensionEnabled;
}
void Session::setAppendExtensionEnabled(const bool enabled)
{
if (isAppendExtensionEnabled() != enabled) {
// append or remove .!qB extension for incomplete files
for (TorrentHandle *const torrent : asConst(m_torrents))
torrent->handleAppendExtensionToggled();
m_isAppendExtensionEnabled = enabled;
}
}
uint Session::refreshInterval() const
{
return m_refreshInterval;
}
void Session::setRefreshInterval(const uint value)
{
if (value != refreshInterval()) {
m_refreshTimer->setInterval(value);
m_refreshInterval = value;
}
}
bool Session::isPreallocationEnabled() const
{
return m_isPreallocationEnabled;
}
void Session::setPreallocationEnabled(const bool enabled)
{
m_isPreallocationEnabled = enabled;
}
QString Session::torrentExportDirectory() const
{
return Utils::Fs::toUniformPath(m_torrentExportDirectory);
}
void Session::setTorrentExportDirectory(QString path)
{
path = Utils::Fs::toUniformPath(path);
if (path != torrentExportDirectory())
m_torrentExportDirectory = path;
}
QString Session::finishedTorrentExportDirectory() const
{
return Utils::Fs::toUniformPath(m_finishedTorrentExportDirectory);
}
void Session::setFinishedTorrentExportDirectory(QString path)
{
path = Utils::Fs::toUniformPath(path);
if (path != finishedTorrentExportDirectory())
m_finishedTorrentExportDirectory = path;
}
QString Session::defaultSavePath() const
{
return Utils::Fs::toUniformPath(m_defaultSavePath);
}
QString Session::tempPath() const
{
return Utils::Fs::toUniformPath(m_tempPath);
}
QString Session::torrentTempPath(const TorrentInfo &torrentInfo) const
{
if ((torrentInfo.filesCount() > 1) && !torrentInfo.hasRootFolder())
return tempPath()
+ QString::fromStdString(torrentInfo.nativeInfo()->orig_files().name())
+ '/';
return tempPath();
}
bool Session::isValidCategoryName(const QString &name)
{
static const QRegularExpression re(R"(^([^\\\/]|[^\\\/]([^\\\/]|\/(?=[^\/]))*[^\\\/])$)");
if (!name.isEmpty() && (name.indexOf(re) != 0)) {
qDebug() << "Incorrect category name:" << name;
return false;
}
return true;
}
QStringList Session::expandCategory(const QString &category)
{
QStringList result;
if (!isValidCategoryName(category))
return result;
int index = 0;
while ((index = category.indexOf('/', index)) >= 0) {
result << category.left(index);
++index;
}
result << category;
return result;
}
QStringMap Session::categories() const
{
return m_categories;
}
QString Session::categorySavePath(const QString &categoryName) const
{
const QString basePath = m_defaultSavePath;
if (categoryName.isEmpty()) return basePath;
QString path = m_categories.value(categoryName);
if (path.isEmpty()) // use implicit save path
path = Utils::Fs::toValidFileSystemName(categoryName, true);
if (!QDir::isAbsolutePath(path))
path.prepend(basePath);
return normalizeSavePath(path);
}
bool Session::addCategory(const QString &name, const QString &savePath)
{
if (name.isEmpty()) return false;
if (!isValidCategoryName(name) || m_categories.contains(name))
return false;
if (isSubcategoriesEnabled()) {
for (const QString &parent : asConst(expandCategory(name))) {
if ((parent != name) && !m_categories.contains(parent)) {
m_categories[parent] = "";
emit categoryAdded(parent);
}
}
}
m_categories[name] = savePath;
m_storedCategories = map_cast(m_categories);
emit categoryAdded(name);
return true;
}
bool Session::editCategory(const QString &name, const QString &savePath)
{
if (!m_categories.contains(name)) return false;
if (categorySavePath(name) == savePath) return false;
m_categories[name] = savePath;
m_storedCategories = map_cast(m_categories);
if (isDisableAutoTMMWhenCategorySavePathChanged()) {
for (TorrentHandle *const torrent : asConst(torrents()))
if (torrent->category() == name)
torrent->setAutoTMMEnabled(false);
}
else {
for (TorrentHandle *const torrent : asConst(torrents()))
if (torrent->category() == name)
torrent->handleCategorySavePathChanged();
}
return true;
}
bool Session::removeCategory(const QString &name)
{
for (TorrentHandle *const torrent : asConst(torrents()))
if (torrent->belongsToCategory(name))
torrent->setCategory("");
// remove stored category and its subcategories if exist
bool result = false;
if (isSubcategoriesEnabled()) {
// remove subcategories
const QString test = name + '/';
Algorithm::removeIf(m_categories, [this, &test, &result](const QString &category, const QString &)
{
if (category.startsWith(test)) {
result = true;
emit categoryRemoved(category);
return true;
}
return false;
});
}
result = (m_categories.remove(name) > 0) || result;
if (result) {
// update stored categories
m_storedCategories = map_cast(m_categories);
emit categoryRemoved(name);
}
return result;
}
bool Session::isSubcategoriesEnabled() const
{
return m_isSubcategoriesEnabled;
}
void Session::setSubcategoriesEnabled(const bool value)
{
if (isSubcategoriesEnabled() == value) return;
if (value) {
// expand categories to include all parent categories
m_categories = expandCategories(m_categories);
// update stored categories
m_storedCategories = map_cast(m_categories);
}
else {
// reload categories
m_categories = map_cast(m_storedCategories);
}
m_isSubcategoriesEnabled = value;
emit subcategoriesSupportChanged();
}
QSet<QString> Session::tags() const
{
return m_tags;
}
bool Session::isValidTag(const QString &tag)
{
return (!tag.trimmed().isEmpty() && !tag.contains(','));
}
bool Session::hasTag(const QString &tag) const
{
return m_tags.contains(tag);
}
bool Session::addTag(const QString &tag)
{
if (!isValidTag(tag))
return false;
if (!hasTag(tag)) {
m_tags.insert(tag);
m_storedTags = m_tags.values();
emit tagAdded(tag);
return true;
}
return false;
}
bool Session::removeTag(const QString &tag)
{
if (m_tags.remove(tag)) {
for (TorrentHandle *const torrent : asConst(torrents()))
torrent->removeTag(tag);
m_storedTags = m_tags.values();
emit tagRemoved(tag);
return true;
}
return false;
}
bool Session::isAutoTMMDisabledByDefault() const
{
return m_isAutoTMMDisabledByDefault;
}
void Session::setAutoTMMDisabledByDefault(const bool value)
{
m_isAutoTMMDisabledByDefault = value;
}
bool Session::isDisableAutoTMMWhenCategoryChanged() const
{
return m_isDisableAutoTMMWhenCategoryChanged;
}
void Session::setDisableAutoTMMWhenCategoryChanged(const bool value)
{
m_isDisableAutoTMMWhenCategoryChanged = value;
}
bool Session::isDisableAutoTMMWhenDefaultSavePathChanged() const
{
return m_isDisableAutoTMMWhenDefaultSavePathChanged;
}
void Session::setDisableAutoTMMWhenDefaultSavePathChanged(const bool value)
{
m_isDisableAutoTMMWhenDefaultSavePathChanged = value;
}
bool Session::isDisableAutoTMMWhenCategorySavePathChanged() const
{
return m_isDisableAutoTMMWhenCategorySavePathChanged;
}
void Session::setDisableAutoTMMWhenCategorySavePathChanged(const bool value)
{
m_isDisableAutoTMMWhenCategorySavePathChanged = value;
}
bool Session::isAddTorrentPaused() const
{
return m_isAddTorrentPaused;
}
void Session::setAddTorrentPaused(const bool value)
{
m_isAddTorrentPaused = value;
}
bool Session::isTrackerEnabled() const
{
return m_isTrackerEnabled;
}
void Session::setTrackerEnabled(const bool enabled)
{
if (m_isTrackerEnabled != enabled)
m_isTrackerEnabled = enabled;
// call enableTracker() unconditionally, otherwise port change won't trigger
// tracker restart
enableTracker(enabled);
}
qreal Session::globalMaxRatio() const
{
return m_globalMaxRatio;
}
// Torrents with a ratio superior to the given value will
// be automatically deleted
void Session::setGlobalMaxRatio(qreal ratio)
{
if (ratio < 0)
ratio = -1.;
if (ratio != globalMaxRatio()) {
m_globalMaxRatio = ratio;
updateSeedingLimitTimer();
}
}
int Session::globalMaxSeedingMinutes() const
{
return m_globalMaxSeedingMinutes;
}
void Session::setGlobalMaxSeedingMinutes(int minutes)
{
if (minutes < 0)
minutes = -1;
if (minutes != globalMaxSeedingMinutes()) {
m_globalMaxSeedingMinutes = minutes;
updateSeedingLimitTimer();
}
}
// Main destructor
Session::~Session()
{
// Do some BT related saving
saveResumeData();
// We must delete FilterParserThread
// before we delete lt::session
if (m_filterParser)
delete m_filterParser;
// We must delete PortForwarderImpl before
// we delete lt::session
delete Net::PortForwarder::instance();
qDebug("Deleting the session");
delete m_nativeSession;
m_ioThread->quit();
m_ioThread->wait();
m_resumeFolderLock->close();
m_resumeFolderLock->remove();
}
void Session::initInstance()
{
if (!m_instance)
m_instance = new Session;
}
void Session::freeInstance()