bool http_tracker_connection::extract_peer_info(lazy_entry const& info, peer_entry& ret)
{
// extract peer id (if any)
if (info.type() != lazy_entry::dict_t)
{
fail(error_code(errors::invalid_peer_dict));
return false;
}
lazy_entry const* i = info.dict_find_string("peer id");
if (i != 0 && i->string_length() == 20)
{
std::copy(i->string_ptr(), i->string_ptr()+20, ret.pid.begin());
}
else
{
// if there's no peer_id, just initialize it to a bunch of zeroes
std::fill_n(ret.pid.begin(), 20, 0);
}
// extract ip
i = info.dict_find_string("ip");
if (i == 0)
{
fail(error_code(errors::invalid_tracker_response));
return false;
}
ret.ip = i->string_value();
// extract port
i = info.dict_find_int("port");
if (i == 0)
{
fail(error_code(errors::invalid_tracker_response));
return false;
}
ret.port = (unsigned short)i->int_value();
return true;
}
std::string parse_dht_client(lazy_entry const& e)
{
lazy_entry const* ver = e.dict_find_string("v");
if (!ver) return "generic";
std::string const& client = ver->string_value();
if (client.size() < 2)
{
++g_unknown_message_input;
return client;
}
else if (std::equal(client.begin(), client.begin() + 2, "Az"))
{
++g_az_message_input;
return "Azureus";
}
else if (std::equal(client.begin(), client.begin() + 2, "UT"))
{
++g_ut_message_input;
return "uTorrent";
}
else if (std::equal(client.begin(), client.begin() + 2, "LT"))
{
++g_lt_message_input;
return "libtorrent";
}
else if (std::equal(client.begin(), client.begin() + 2, "MP"))
{
++g_mp_message_input;
return "MooPolice";
}
else if (std::equal(client.begin(), client.begin() + 2, "GR"))
{
++g_gr_message_input;
return "GetRight";
}
else if (std::equal(client.begin(), client.begin() + 2, "MO"))
{
++g_mo_message_input;
return "Mono Torrent";
}
else
{
++g_unknown_message_input;
return client;
}
}
bool default_storage::verify_resume_data(lazy_entry const& rd, error_code& error)
{
lazy_entry const* file_priority = rd.dict_find_list("file_priority");
if (file_priority && file_priority->list_size()
== files().num_files())
{
m_file_priority.resize(file_priority->list_size());
for (int i = 0; i < file_priority->list_size(); ++i)
m_file_priority[i] = boost::uint8_t(file_priority->list_int_value_at(i, 1));
}
bool seed = false;
if (lazy_entry const* pieces = rd.dict_find_string("pieces"))
{
if (int(pieces->string_length()) == m_files.num_pieces())
{
seed = true;
char const* p = pieces->string_ptr();
for (int i = 0; i < pieces->string_length(); ++i)
{
if ((p[i] & 1) == 1) continue;
seed = false;
break;
}
}
}
else
{
error = errors::missing_pieces;
return false;
}
int flags = (settings().ignore_resume_timestamps ? ignore_timestamps : 0);
return true;
}
void http_tracker_connection::parse(int status_code, lazy_entry const& e)
{
boost::shared_ptr<request_callback> cb = requester();
if (!cb) return;
int interval = int(e.dict_find_int_value("interval", 1800));
int min_interval = int(e.dict_find_int_value("min interval", 60));
std::string trackerid;
lazy_entry const* tracker_id = e.dict_find_string("tracker id");
if (tracker_id)
trackerid = tracker_id->string_value();
// parse the response
lazy_entry const* failure = e.dict_find_string("failure reason");
if (failure)
{
fail(error_code(errors::tracker_failure), status_code
, failure->string_value().c_str(), interval, min_interval);
return;
}
lazy_entry const* warning = e.dict_find_string("warning message");
if (warning)
cb->tracker_warning(tracker_req(), warning->string_value());
std::vector<peer_entry> peer_list;
if (tracker_req().kind == tracker_request::scrape_request)
{
std::string ih = tracker_req().info_hash.to_string();
lazy_entry const* files = e.dict_find_dict("files");
if (files == 0)
{
fail(error_code(errors::invalid_files_entry), -1, ""
, interval, min_interval);
return;
}
lazy_entry const* scrape_data = files->dict_find_dict(ih.c_str());
if (scrape_data == 0)
{
fail(error_code(errors::invalid_hash_entry), -1, ""
, interval, min_interval);
return;
}
int complete = int(scrape_data->dict_find_int_value("complete", -1));
int incomplete = int(scrape_data->dict_find_int_value("incomplete", -1));
int downloaded = int(scrape_data->dict_find_int_value("downloaded", -1));
int downloaders = int(scrape_data->dict_find_int_value("downloaders", -1));
cb->tracker_scrape_response(tracker_req(), complete
, incomplete, downloaded, downloaders);
return;
}
lazy_entry const* peers_ent = e.dict_find("peers");
if (peers_ent && peers_ent->type() == lazy_entry::string_t)
{
char const* peers = peers_ent->string_ptr();
int len = peers_ent->string_length();
for (int i = 0; i < len; i += 6)
{
if (len - i < 6) break;
peer_entry p;
p.pid.clear();
error_code ec;
p.ip = detail::read_v4_address(peers).to_string(ec);
p.port = detail::read_uint16(peers);
if (ec) continue;
peer_list.push_back(p);
}
}
else if (peers_ent && peers_ent->type() == lazy_entry::list_t)
{
int len = peers_ent->list_size();
for (int i = 0; i < len; ++i)
{
peer_entry p;
if (!extract_peer_info(*peers_ent->list_at(i), p)) return;
peer_list.push_back(p);
}
}
else
{
peers_ent = 0;
}
#if TORRENT_USE_IPV6
lazy_entry const* ipv6_peers = e.dict_find_string("peers6");
if (ipv6_peers)
{
char const* peers = ipv6_peers->string_ptr();
int len = ipv6_peers->string_length();
for (int i = 0; i < len; i += 18)
{
if (len - i < 18) break;
peer_entry p;
p.pid.clear();
error_code ec;
p.ip = detail::read_v6_address(peers).to_string(ec);
p.port = detail::read_uint16(peers);
if (ec) continue;
peer_list.push_back(p);
}
}
else
{
ipv6_peers = 0;
}
#else
lazy_entry const* ipv6_peers = 0;
#endif
// if we didn't receive any peers. We don't care if we're stopping anyway
if (peers_ent == 0 && ipv6_peers == 0
&& tracker_req().event != tracker_request::stopped)
{
fail(error_code(errors::invalid_peers_entry), -1, ""
, interval, min_interval);
return;
}
// look for optional scrape info
address external_ip;
lazy_entry const* ip_ent = e.dict_find_string("external ip");
if (ip_ent)
{
char const* p = ip_ent->string_ptr();
if (ip_ent->string_length() == address_v4::bytes_type().size())
external_ip = detail::read_v4_address(p);
#if TORRENT_USE_IPV6
else if (ip_ent->string_length() == address_v6::bytes_type().size())
external_ip = detail::read_v6_address(p);
#endif
}
int complete = int(e.dict_find_int_value("complete", -1));
int incomplete = int(e.dict_find_int_value("incomplete", -1));
std::list<address> ip_list;
if (m_tracker_connection)
{
error_code ec;
ip_list.push_back(m_tracker_connection->socket().remote_endpoint(ec).address());
std::list<tcp::endpoint> const& epts = m_tracker_connection->endpoints();
for (std::list<tcp::endpoint>::const_iterator i = epts.begin()
, end(epts.end()); i != end; ++i)
{
ip_list.push_back(i->address());
}
}
cb->tracker_response(tracker_req(), m_tracker_ip, ip_list, peer_list
, interval, min_interval, complete, incomplete, external_ip, trackerid);
}
