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);
}
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)
{
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);
}
void parse_magnet_uri(std::string const& uri, add_torrent_params& p, error_code& ec)
{
ec.clear();
std::string name;
error_code e;
std::string display_name = url_has_argument(uri, "dn");
if (!display_name.empty()) name = unescape_string(display_name.c_str(), e);
// parse trackers out of the magnet link
std::string::size_type pos = std::string::npos;
std::string url = url_has_argument(uri, "tr", &pos);
while (pos != std::string::npos)
{
error_code e;
url = unescape_string(url, e);
if (e) continue;
p.trackers.push_back(url);
pos = uri.find("&tr=", pos);
if (pos == std::string::npos) break;
pos += 4;
url = uri.substr(pos, uri.find('&', pos) - pos);
}
// parse web seeds out of the magnet link
pos = std::string::npos;
url = url_has_argument(uri, "ws", &pos);
while (pos != std::string::npos)
{
error_code e;
url = unescape_string(url, e);
if (e) continue;
p.url_seeds.push_back(url);
pos = uri.find("&ws=", pos);
if (pos == std::string::npos) break;
pos += 4;
url = uri.substr(pos, uri.find('&', pos) - pos);
}
std::string btih = url_has_argument(uri, "xt");
if (btih.empty())
{
ec = errors::missing_info_hash_in_uri;
return;
}
if (btih.compare(0, 9, "urn:btih:") != 0)
{
ec = errors::missing_info_hash_in_uri;
return;
}
#ifndef TORRENT_DISABLE_DHT
std::string::size_type node_pos = std::string::npos;
std::string node = url_has_argument(uri, "dht", &node_pos);
while (!node.empty())
{
std::string::size_type divider = node.find_last_of(':');
if (divider != std::string::npos)
{
int port = atoi(node.c_str()+divider+1);
if (port != 0)
p.dht_nodes.push_back(std::make_pair(node.substr(0, divider), port));
}
node_pos = uri.find("&dht=", node_pos);
if (node_pos == std::string::npos) break;
node_pos += 5;
node = uri.substr(node_pos, uri.find('&', node_pos) - node_pos);
}
#endif
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)));
p.info_hash = info_hash;
if (!name.empty()) p.name = name;
}
// TODO: 3 take string_ref here instead
void parse_magnet_uri(std::string const& uri, add_torrent_params& p, error_code& ec)
{
ec.clear();
std::string name;
{
error_code e;
std::string display_name = url_has_argument(uri, "dn");
if (!display_name.empty()) name = unescape_string(display_name.c_str(), e);
}
// parse trackers out of the magnet link
std::string::size_type pos = std::string::npos;
std::string url = url_has_argument(uri, "tr", &pos);
int tier = 0;
while (pos != std::string::npos)
{
// since we're about to assign tiers to the trackers, make sure the two
// vectors are aligned
if (p.tracker_tiers.size() != p.trackers.size())
p.tracker_tiers.resize(p.trackers.size(), 0);
error_code e;
url = unescape_string(url, e);
if (e) continue;
p.trackers.push_back(url);
p.tracker_tiers.push_back(tier++);
pos = uri.find("&tr=", pos);
if (pos == std::string::npos) break;
pos += 4;
url = uri.substr(pos, uri.find('&', pos) - pos);
}
// parse web seeds out of the magnet link
pos = std::string::npos;
url = url_has_argument(uri, "ws", &pos);
while (pos != std::string::npos)
{
error_code e;
url = unescape_string(url, e);
if (e) continue;
p.url_seeds.push_back(url);
pos = uri.find("&ws=", pos);
if (pos == std::string::npos) break;
pos += 4;
url = uri.substr(pos, uri.find('&', pos) - pos);
}
std::string btih = url_has_argument(uri, "xt");
if (btih.empty())
{
ec = errors::missing_info_hash_in_uri;
return;
}
if (btih.compare(0, 9, "urn:btih:") != 0)
{
ec = errors::missing_info_hash_in_uri;
return;
}
std::string::size_type peer_pos = std::string::npos;
std::string peer = url_has_argument(uri, "x.pe", &peer_pos);
while (!peer.empty())
{
error_code e;
tcp::endpoint endp = parse_endpoint(peer, e);
if (!e)
p.peers.push_back(endp);
peer_pos = uri.find("&x.pe=", peer_pos);
if (peer_pos == std::string::npos) break;
peer_pos += 6;
peer = uri.substr(peer_pos, uri.find('&', peer_pos) - peer_pos);
}
#ifndef TORRENT_DISABLE_DHT
std::string::size_type node_pos = std::string::npos;
std::string node = url_has_argument(uri, "dht", &node_pos);
while (!node.empty())
{
std::string::size_type divider = node.find_last_of(':');
if (divider != std::string::npos)
{
int port = atoi(node.c_str() + divider + 1);
if (port != 0)
p.dht_nodes.push_back(std::make_pair(node.substr(0, divider), port));
}
node_pos = uri.find("&dht=", node_pos);
if (node_pos == std::string::npos) break;
node_pos += 5;
node = uri.substr(node_pos, uri.find('&', node_pos) - node_pos);
}
#endif
sha1_hash info_hash;
if (btih.size() == 40 + 9) aux::from_hex({&btih[9], 40}, info_hash.data());
else if (btih.size() == 32 + 9)
{
std::string ih = base32decode(btih.substr(9));
if (ih.size() != 20)
{
ec = errors::invalid_info_hash;
return;
}
info_hash.assign(ih);
}
else
{
ec = errors::invalid_info_hash;
return;
}
p.info_hash = info_hash;
if (!name.empty()) p.name = name;
}
