Files
OpenSpace/modules/sync/torrentclient.cpp
2017-12-29 20:11:22 +01:00

249 lines
8.6 KiB
C++

/*****************************************************************************************
* *
* OpenSpace *
* *
* Copyright (c) 2014-2018 *
* *
* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
* software and associated documentation files (the "Software"), to deal in the Software *
* without restriction, including without limitation the rights to use, copy, modify, *
* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
* permit persons to whom the Software is furnished to do so, subject to the following *
* conditions: *
* *
* The above copyright notice and this permission notice shall be included in all copies *
* or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
****************************************************************************************/
#include <modules/sync/torrentclient.h>
#include <openspace/openspace.h>
#include <ghoul/logging/logmanager.h>
namespace {
constexpr const char* _loggerCat = "TorrentClient";
std::chrono::milliseconds PollInterval(200);
} // namespace
namespace openspace {
TorrentError::TorrentError(std::string component)
: RuntimeError("TorrentClient", component)
{}
} // namespace openspace
#ifdef SYNC_USE_LIBTORRENT
#include <libtorrent/entry.hpp>
#include <libtorrent/bencode.hpp>
#include <libtorrent/session.hpp>
#include <libtorrent/alert_types.hpp>
#include <libtorrent/torrent_info.hpp>
#include <libtorrent/magnet_uri.hpp>
namespace openspace {
TorrentClient::TorrentClient()
: _keepRunning(true)
{}
TorrentClient::~TorrentClient() {
_keepRunning = false;
_torrentThread.join();
}
void TorrentClient::initialize() {
libtorrent::settings_pack settings;
_session = std::make_unique<libtorrent::session>();
settings.set_str(libtorrent::settings_pack::user_agent, "OpenSpace/" +
std::to_string(openspace::OPENSPACE_VERSION_MAJOR) + "." +
std::to_string(openspace::OPENSPACE_VERSION_MINOR) + "." +
std::to_string(openspace::OPENSPACE_VERSION_PATCH)
);
settings.set_bool(libtorrent::settings_pack::allow_multiple_connections_per_ip, true);
//settings.set_bool(libtorrent::settings_pack::ignore_limits_on_local_network, true);
settings.set_int(libtorrent::settings_pack::connection_speed, 20);
settings.set_int(libtorrent::settings_pack::active_downloads, -1);
settings.set_int(libtorrent::settings_pack::active_seeds, -1);
settings.set_int(libtorrent::settings_pack::active_limit, 30);
settings.set_int(libtorrent::settings_pack::dht_announce_interval, 60);
_session->apply_settings(settings);
_session->add_dht_router({ "router.utorrent.com", 6881 });
_session->add_dht_router({ "dht.transmissionbt.com", 6881 });
_session->add_dht_router({ "router.bittorrent.com", 6881 });
_session->add_dht_router({ "router.bitcomet.com", 6881 });
libtorrent::error_code ec;
_session->listen_on(std::make_pair(20280, 20290), ec);
_session->start_upnp();
_torrentThread = std::thread([this]() {
while (_keepRunning) {
pollAlerts();
std::this_thread::sleep_for(PollInterval);
}
});
}
void TorrentClient::pollAlerts() {
std::vector<libtorrent::alert*> alerts;
{
std::lock_guard<std::mutex> guard(_mutex);
_session->pop_alerts(&alerts);
}
for (lt::alert const* a : alerts) {
//LINFO(a->message());
// if we receive the finished alert or an error, we're done
if (const lt::torrent_finished_alert* alert =
lt::alert_cast<lt::torrent_finished_alert>(a))
{
notify(alert->handle.id());
}
if (const lt::piece_finished_alert* alert =
lt::alert_cast<lt::piece_finished_alert>(a))
{
notify(alert->handle.id());
}
if (const lt::torrent_error_alert* alert =
lt::alert_cast<lt::torrent_error_alert>(a))
{
notify(alert->handle.id());
}
}
}
TorrentClient::TorrentId TorrentClient::addTorrentFile(std::string torrentFile,
std::string destination,
TorrentProgressCallback cb)
{
std::lock_guard<std::mutex> guard(_mutex);
if (!_session) {
LERROR("Torrent session not initialized when adding torrent");
return -1;
}
libtorrent::error_code ec;
libtorrent::add_torrent_params p;
p.save_path = destination;
p.ti = std::make_shared<libtorrent::torrent_info>(torrentFile, ec, 0);
libtorrent::torrent_handle h = _session->add_torrent(p, ec);
if (ec) {
LERROR(torrentFile << ": " << ec.message());
}
TorrentId id = h.id();
_torrents.emplace(id, Torrent{id, h, cb});
return id;
}
TorrentClient::TorrentId TorrentClient::addMagnetLink(std::string magnetLink,
std::string destination,
TorrentProgressCallback cb)
{
std::lock_guard<std::mutex> guard(_mutex);
// TODO: register callback!
if (!_session) {
LERROR("Torrent session not initialized when adding torrent");
return -1;
}
libtorrent::error_code ec;
libtorrent::add_torrent_params p = libtorrent::parse_magnet_uri(magnetLink, ec);
p.save_path = destination;
p.storage_mode = libtorrent::storage_mode_allocate;
libtorrent::torrent_handle h = _session->add_torrent(p, ec);
if (ec) {
LERROR(magnetLink << ": " << ec.message());
}
TorrentId id = h.id();
_torrents.emplace(id, Torrent{id, h, cb});
return id;
}
void TorrentClient::removeTorrent(TorrentId id) {
std::lock_guard<std::mutex> guard(_mutex);
auto it = _torrents.find(id);
if (it == _torrents.end()) {
return;
}
libtorrent::torrent_handle h = it->second.handle;
_session->remove_torrent(h);
_torrents.erase(it);
}
void TorrentClient::notify(TorrentId id) {
std::lock_guard<std::mutex> guard(_mutex);
auto torrent = _torrents.find(id);
if (torrent == _torrents.end()) {
return;
}
libtorrent::torrent_handle h = torrent->second.handle;
libtorrent::torrent_status status = h.status();
TorrentProgress progress;
progress.finished = status.state == libtorrent::torrent_status::state_t::finished ||
status.state == libtorrent::torrent_status::state_t::seeding;
progress.nTotalBytesKnown = status.total_wanted > 0;
progress.nTotalBytes = status.total_wanted;
progress.nDownloadedBytes = status.total_wanted_done;
torrent->second.callback(progress);
}
} // namespace openspace
#else // SYNC_USE_LIBTORRENT
namespace openspace {
TorrentClient::TorrentClient() {}
TorrentClient::~TorrentClient() {}
void TorrentClient::initialize() {}
void TorrentClient::pollAlerts() {}
TorrentClient::TorrentId TorrentClient::addTorrentFile(std::string, std::string,
TorrentProgressCallback)
{
throw TorrentError("SyncModule is not compiled with libtorrent");
}
TorrentClient::TorrentId TorrentClient::addMagnetLink(std::string, std::string,
TorrentProgressCallback)
{
throw TorrentError("SyncModule is not compiled with libtorrent");
}
void TorrentClient::removeTorrent(TorrentId id) {}
} // namespace openspace
#endif // SYNC_USE_LIBTORRENT