torrent_handle add_magnet_uri(session& ses, std::string const& uri
, add_torrent_params p, error_code& ec)
{
std::string name;
std::string tracker;
error_code e;
boost::optional<std::string> display_name = url_has_argument(uri, "dn");
if (display_name) name = unescape_string(display_name->c_str(), e);
boost::optional<std::string> tracker_string = url_has_argument(uri, "tr");
if (tracker_string) tracker = unescape_string(tracker_string->c_str(), e);
boost::optional<std::string> btih = url_has_argument(uri, "xt");
if (!btih)
{
ec = error_code(errors::missing_info_hash_in_uri, libtorrent_category);
return torrent_handle();
}
if (btih->compare(0, 9, "urn:btih:") != 0)
{
ec = error_code(errors::missing_info_hash_in_uri, libtorrent_category);
return torrent_handle();
}
sha1_hash info_hash;
if (btih->size() == 40 + 9) from_hex(&(*btih)[9], 40, (char*)&info_hash[0]);
else info_hash.assign(base32decode(btih->substr(9)));
if (!tracker.empty()) p.tracker_url = tracker.c_str();
p.info_hash = info_hash;
if (!name.empty()) p.name = name.c_str();
return ses.add_torrent(p, ec);
}
torrent_handle add_magnet_uri(session& ses, std::string const& uri
, std::string const& save_path
, storage_mode_t storage_mode
, bool paused
, storage_constructor_type sc
, void* userdata)
{
std::string name;
std::string tracker;
error_code ec;
std::string display_name = url_has_argument(uri, "dn");
if (!display_name.empty()) name = unescape_string(display_name.c_str(), ec);
std::string tracker_string = url_has_argument(uri, "tr");
if (!tracker_string.empty()) tracker = unescape_string(tracker_string.c_str(), ec);
std::string btih = url_has_argument(uri, "xt");
if (btih.empty()) return torrent_handle();
if (btih.compare(0, 9, "urn:btih:") != 0) return torrent_handle();
sha1_hash info_hash;
if (btih.size() == 40 + 9) from_hex(&btih[9], 40, (char*)&info_hash[0]);
else info_hash.assign(base32decode(btih.substr(9)));
return ses.add_torrent(tracker.empty() ? 0 : tracker.c_str(), info_hash
, name.empty() ? 0 : name.c_str(), save_path, entry()
, storage_mode, paused, sc, userdata);
}
void torrent_handle::async_call(Fun f, Args&&... a) const
{
std::shared_ptr<torrent> t = m_torrent.lock();
if (!t)
{
#ifndef BOOST_NO_EXCEPTIONS
throw_invalid_handle();
#else
std::terminate();
#endif
}
session_impl& ses = static_cast<session_impl&>(t->session());
ses.get_io_service().dispatch([=,&ses] ()
{
#ifndef BOOST_NO_EXCEPTIONS
try {
#endif
(t.get()->*f)(a...);
#ifndef BOOST_NO_EXCEPTIONS
} catch (system_error const& e) {
ses.alerts().emplace_alert<torrent_error_alert>(torrent_handle(m_torrent)
, e.code(), e.what());
} catch (std::exception const& e) {
ses.alerts().emplace_alert<torrent_error_alert>(torrent_handle(m_torrent)
, error_code(), e.what());
} catch (...) {
ses.alerts().emplace_alert<torrent_error_alert>(torrent_handle(m_torrent)
, error_code(), "unknown error");
}
#endif
} );
}
torrent_handle add_magnet_uri(session& ses, std::string const& uri
, std::string const& save_path
, storage_mode_t storage_mode
, bool paused
, storage_constructor_type sc
, void* userdata)
{
add_torrent_params params(sc);
params.storage_mode = storage_mode;
params.userdata = userdata;
params.save_path = save_path;
if (paused) params.flags |= add_torrent_params::flag_paused;
else params.flags &= ~add_torrent_params::flag_paused;
error_code ec;
std::string display_name = url_has_argument(uri, "dn");
if (!display_name.empty()) params.name = unescape_string(display_name.c_str(), ec);
std::string tracker_string = url_has_argument(uri, "tr");
if (!tracker_string.empty()) params.trackers.push_back(unescape_string(tracker_string.c_str(), ec));
std::string btih = url_has_argument(uri, "xt");
if (btih.empty()) return torrent_handle();
if (btih.compare(0, 9, "urn:btih:") != 0) return torrent_handle();
if (btih.size() == 40 + 9) from_hex(&btih[9], 40, (char*)¶ms.info_hash[0]);
else params.info_hash.assign(base32decode(btih.substr(9)));
return ses.add_torrent(params);
}
torrent_handle add_magnet_uri(session& ses, std::string const& uri
, fs::path const& save_path
, storage_mode_t storage_mode
, bool paused
, storage_constructor_type sc
, void* userdata)
{
std::string name;
std::string tracker;
boost::optional<std::string> display_name = url_has_argument(uri, "dn");
if (display_name) name = unescape_string(display_name->c_str());
boost::optional<std::string> tracker_string = url_has_argument(uri, "tr");
if (tracker_string) tracker = unescape_string(tracker_string->c_str());
boost::optional<std::string> btih = url_has_argument(uri, "xt");
if (!btih) return torrent_handle();
if (btih->compare(0, 9, "urn:btih:") != 0) return torrent_handle();
sha1_hash info_hash;
if (btih->size() == 40 + 9) info_hash = boost::lexical_cast<sha1_hash>(btih->substr(9));
else info_hash.assign(base32decode(btih->substr(9)));
return ses.add_torrent(tracker.empty() ? 0 : tracker.c_str(), info_hash
, name.empty() ? 0 : name.c_str(), save_path, entry()
, storage_mode, paused, sc, userdata);
}
torrent_handle add_magnet_uri(session& ses, std::string const& uri
, add_torrent_params p)
{
std::string name;
std::string tracker;
boost::optional<std::string> display_name = url_has_argument(uri, "dn");
if (display_name) name = unescape_string(display_name->c_str());
boost::optional<std::string> tracker_string = url_has_argument(uri, "tr");
if (tracker_string) tracker = unescape_string(tracker_string->c_str());
boost::optional<std::string> btih = url_has_argument(uri, "xt");
if (!btih) return torrent_handle();
if (btih->compare(0, 9, "urn:btih:") != 0) return torrent_handle();
sha1_hash info_hash;
if (btih->size() == 40 + 9) info_hash = boost::lexical_cast<sha1_hash>(btih->substr(9));
else info_hash.assign(base32decode(btih->substr(9)));
if (!tracker.empty()) p.tracker_url = tracker.c_str();
p.info_hash = info_hash;
if (!name.empty()) p.name = name.c_str();
return ses.add_torrent(p);
}
torrent_handle peer_connection_handle::associated_torrent() const
{
boost::shared_ptr<peer_connection> pc = native_handle();
if (!pc) return torrent_handle();
boost::shared_ptr<torrent> t = pc->associated_torrent().lock();
if (!t) return torrent_handle();
return t->get_handle();
}
torrent_handle add_magnet_uri_deprecated(session& ses, std::string const& uri
, add_torrent_params p, error_code& ec)
{
parse_magnet_uri(uri, p, ec);
if (ec) return torrent_handle();
return ses.add_torrent(p, ec);
}
void feed::add_item(feed_item const& item)
{
// don't add duplicates
if (m_urls.find(item.url) != m_urls.end())
return;
m_urls.insert(item.url);
m_items.push_back(item);
feed_item& i = m_items.back();
if (m_settings.auto_map_handles)
i.handle = torrent_handle(m_ses.find_torrent(i.uuid.empty() ? i.url : i.uuid));
if (m_ses.m_alerts.should_post<rss_item_alert>())
m_ses.m_alerts.post_alert(rss_item_alert(my_handle(), i));
if (m_settings.auto_download)
{
if (!m_settings.auto_map_handles)
i.handle = torrent_handle(m_ses.find_torrent(i.uuid.empty() ? i.url : i.uuid));
// if we're already downloading this torrent
// move along to the next one
if (i.handle.is_valid()) return;
// has this already been added?
if (m_added.find(i.url) != m_added.end()) return;
// this means we should add this torrent to the session
add_torrent_params p = m_settings.add_args;
p.url = i.url;
p.uuid = i.uuid;
p.source_feed_url = m_settings.url;
p.ti.reset();
p.info_hash.clear();
p.name = i.title.c_str();
error_code e;
m_ses.add_torrent(p, e);
time_t now = time(NULL);
m_added.insert(make_pair(i.url, now));
}
}
void feed::on_feed(error_code const& ec
, http_parser const& parser, char const* data, int size)
{
// enabling this assert makes the unit test a lot more difficult
// TORRENT_ASSERT(m_updating);
m_updating = false;
if (ec && ec != asio::error::eof)
{
++m_failures;
m_error = ec;
if (m_ses.m_alerts.should_post<rss_alert>())
{
m_ses.m_alerts.post_alert(rss_alert(my_handle(), m_settings.url
, rss_alert::state_error, m_error));
}
return;
}
if (parser.status_code() != 200)
{
++m_failures;
m_error = error_code(parser.status_code(), get_http_category());
if (m_ses.m_alerts.should_post<rss_alert>())
{
m_ses.m_alerts.post_alert(rss_alert(my_handle(), m_settings.url
, rss_alert::state_error, m_error));
}
return;
}
m_failures = 0;
char* buf = const_cast<char*>(data);
feed_state s(*this);
xml_parse(buf, buf + size, boost::bind(&parse_feed, boost::ref(s), _1, _2, _3));
time_t now = time(NULL);
if (m_settings.auto_download || m_settings.auto_map_handles)
{
for (std::vector<feed_item>::iterator i = m_items.begin()
, end(m_items.end()); i != end; ++i)
{
i->handle = torrent_handle(m_ses.find_torrent(i->uuid.empty() ? i->url : i->uuid));
// if we're already downloading this torrent, or if we
// don't have auto-download enabled, just move along to
// the next one
if (i->handle.is_valid() || !m_settings.auto_download) continue;
// has this already been added?
if (m_added.find(i->url) != m_added.end()) continue;
// this means we should add this torrent to the session
add_torrent_params p = m_settings.add_args;
p.url = i->url;
p.uuid = i->uuid;
p.source_feed_url = m_settings.url;
p.ti.reset();
p.info_hash.clear();
p.name = i->title.c_str();
error_code e;
torrent_handle h = m_ses.add_torrent(p, e);
m_ses.m_alerts.post_alert(add_torrent_alert(h, p, e));
m_added.insert(make_pair(i->url, now));
}
}
m_last_update = now;
// keep history of the typical feed size times 5
int max_history = (std::max)(s.num_items * 5, 100);
// this is not very efficient, but that's probably OK for now
while (int(m_added.size()) > max_history)
{
// loop over all elements and find the one with the lowest timestamp
// i.e. it was added the longest ago, then remove it
std::map<std::string, time_t>::iterator i = std::min_element(
m_added.begin(), m_added.end()
, boost::bind(&std::pair<const std::string, time_t>::second, _1)
< boost::bind(&std::pair<const std::string, time_t>::second, _2));
m_added.erase(i);
}
// report that we successfully updated the feed
if (m_ses.m_alerts.should_post<rss_alert>())
{
m_ses.m_alerts.post_alert(rss_alert(my_handle(), m_settings.url
, rss_alert::state_updated, error_code()));
}
// update m_ses.m_next_rss_update timestamps
// now that we have updated our timestamp
m_ses.update_rss_feeds();
}
