#include <bridge/bridge.hpp>
#include <bridge/colors.hpp>
#include <xmpp/xmpp_component.hpp>
#include <irc/irc_message.hpp>
#include <network/poller.hpp>
#include <utils/encoding.hpp>
#include <logger/logger.hpp>
#include <utils/split.hpp>
#include <stdexcept>
#include <iostream>
#include <tuple>
using namespace std::string_literals;
static const char* action_prefix = "\01ACTION ";
Bridge::Bridge(const std::string& user_jid, XmppComponent* xmpp, Poller* poller):
user_jid(user_jid),
xmpp(xmpp),
poller(poller)
{
}
Bridge::~Bridge()
{
}
/**
* Return the role and affiliation, corresponding to the given irc mode */
static std::tuple<std::string, std::string> get_role_affiliation_from_irc_mode(const char mode)
{
if (mode == 'a' || mode == 'q')
return std::make_tuple("moderator", "owner");
else if (mode == 'o')
return std::make_tuple("moderator", "admin");
else if (mode == 'h')
return std::make_tuple("moderator", "member");
else if (mode == 'v')
return std::make_tuple("participant", "member");
else
return std::make_tuple("participant", "none");
}
void Bridge::shutdown()
{
for (auto it = this->irc_clients.begin(); it != this->irc_clients.end(); ++it)
{
const std::string exit_message("Gateway shutdown");
it->second->send_quit_command(exit_message);
it->second->leave_dummy_channel(exit_message);
}
}
void Bridge::clean()
{
auto it = this->irc_clients.begin();
while (it != this->irc_clients.end())
{
IrcClient* client = it->second.get();
if (!client->is_connected() && !client->is_connecting())
it = this->irc_clients.erase(it);
else
++it;
}
}
Xmpp::body Bridge::make_xmpp_body(const std::string& str)
{
std::string res;
if (utils::is_valid_utf8(str.c_str()))
res = str;
else
res = utils::convert_to_utf8(str, "ISO-8859-1");
return irc_format_to_xhtmlim(res);
}
IrcClient* Bridge::get_irc_client(const std::string& hostname, const std::string& username)
{
try
{
return this->irc_clients.at(hostname).get();
}
catch (const std::out_of_range& exception)
{
this->irc_clients.emplace(hostname, std::make_shared<IrcClient>(hostname, username, this));
std::shared_ptr<IrcClient> irc = this->irc_clients.at(hostname);
this->poller->add_socket_handler(irc);
return irc.get();
}
}
IrcClient* Bridge::get_irc_client(const std::string& hostname)
{
try
{
return this->irc_clients.at(hostname).get();
}
catch (const std::out_of_range& exception)
{
return nullptr;
}
}
bool Bridge::join_irc_channel(const Iid& iid, const std::string& username)
{
IrcClient* irc = this->get_irc_client(iid.server, username);
if (iid.chan.empty())
{ // Join the dummy channel
if (irc->is_welcomed())
{
if (irc->get_dummy_channel().joined)
return false;
// Immediately simulate a message coming from the IRC server saying that we
// joined the channel
const IrcMessage join_message(irc->get_nick(), "JOIN", {""});
irc->on_channel_join(join_message);
const IrcMessage end_join_message(std::string(iid.server), "366",
{irc->get_nick(),
"", "End of NAMES list"});
irc->on_channel_completely_joined(end_join_message);
}
else
{
irc->get_dummy_channel().joining = true;
irc->start();
}
return true;
}
if (irc->is_channel_joined(iid.chan) == false)
{
irc->send_join_command(iid.chan);
return true;
}
return false;
}
void Bridge::send_channel_message(const Iid& iid, const std::string& body)
{
std::vector<std::string> lines = utils::split(body, '\n', true);
if (lines.empty())
return ;
const std::string first_line = lines[0];
if (iid.chan.empty() || iid.server.empty())
{
log_warning("Cannot send message to channel: [" << iid.chan << "] on server [" << iid.server << "]");
return;
}
IrcClient* irc = this->get_irc_client(iid.server);
if (!irc)
{
log_warning("Cannot send message: no client exist for server " << iid.server);
return;
}
if (first_line.substr(0, 6) == "/mode ")
{
std::vector<std::string> args = utils::split(first_line.substr(6), ' ', false);
irc->send_mode_command(iid.chan, args);
return;
}
if (first_line.substr(0, 4) == "/me ")
irc->send_channel_message(iid.chan, action_prefix + first_line.substr(4) + "\01");
else
irc->send_channel_message(iid.chan, first_line);
// Send each of the other lines of the message as a separate IRC message
for (std::vector<std::string>::const_iterator it = lines.begin() + 1; it != lines.end(); ++it)
irc->send_channel_message(iid.chan, *it);
// We do not need to convert body to utf-8: it comes from our XMPP server,
// so it's ok to send it back
this->xmpp->send_muc_message(iid.chan + "%" + iid.server, irc->get_own_nick(),
this->make_xmpp_body(body), this->user_jid);
}
void Bridge::send_private_message(const Iid& iid, const std::string& body)
{
if (iid.chan.empty() || iid.server.empty())
return ;
IrcClient* irc = this->get_irc_client(iid.server);
if (irc)
irc->send_private_message(iid.chan, body);
}
void Bridge::leave_irc_channel(Iid&& iid, std::string&& status_message)
{
IrcClient* irc = this->get_irc_client(iid.server);
if (irc)
irc->send_part_command(iid.chan, status_message);
}
void Bridge::send_irc_nick_change(const Iid& iid, const std::string& new_nick)
{
IrcClient* irc = this->get_irc_client(iid.server);
if (irc)
irc->send_nick_command(new_nick);
}
void Bridge::send_irc_kick(const Iid& iid, const std::string& target, const std::string& reason)
{
IrcClient* irc = this->get_irc_client(iid.server);
if (irc)
irc->send_kick_command(iid.chan, target, reason);
}
void Bridge::set_channel_topic(const Iid& iid, const std::string& subject)
{
IrcClient* irc = this->get_irc_client(iid.server);
if (irc)
irc->send_topic_command(iid.chan, subject);
}
void Bridge::send_message(const Iid& iid, const std::string& nick, const std::string& body, const bool muc)
{
if (muc)
this->xmpp->send_muc_message(iid.chan + "%" + iid.server, nick,
this->make_xmpp_body(body), this->user_jid);
else
this->xmpp->send_message(iid.chan + "%" + iid.server,
this->make_xmpp_body(body), this->user_jid, "chat");
}
void Bridge::send_muc_leave(Iid&& iid, std::string&& nick, const std::string& message, const bool self)
{
this->xmpp->send_muc_leave(std::move(iid.chan) + "%" + std::move(iid.server), std::move(nick), this->make_xmpp_body(message), this->user_jid, self);
IrcClient* irc = this->get_irc_client(iid.server);
if (irc && irc->number_of_joined_channels() == 0)
irc->send_quit_command("");
}
void Bridge::send_nick_change(Iid&& iid,
const std::string& old_nick,
const std::string& new_nick,
const char user_mode,
const bool self)
{
std::string affiliation;
std::string role;
std::tie(role, affiliation) = get_role_affiliation_from_irc_mode(user_mode);
this->xmpp->send_nick_change(std::move(iid.chan) + "%" + std::move(iid.server),
old_nick, new_nick, affiliation, role, this->user_jid, self);
}
void Bridge::send_xmpp_message(const std::string& from, const std::string& author, const std::string& msg)
{
std::string body;
if (!author.empty())
{
IrcUser user(author);
body = "\u000303"s + user.nick + (user.host.empty()?
"\u0003: ":
(" (\u000310" + user.host + "\u000303)\u0003: ")) + msg;
}
else
body = msg;
this->xmpp->send_message(from, this->make_xmpp_body(body), this->user_jid, "chat");
}
void Bridge::send_user_join(const std::string& hostname,
const std::string& chan_name,
const IrcUser* user,
const char user_mode,
const bool self)
{
std::string affiliation;
std::string role;
std::tie(role, affiliation) = get_role_affiliation_from_irc_mode(user_mode);
this->xmpp->send_user_join(chan_name + "%" + hostname, user->nick, user->host,
affiliation, role, this->user_jid, self);
}
void Bridge::send_topic(const std::string& hostname, const std::string& chan_name, const std::string topic)
{
this->xmpp->send_topic(chan_name + "%" + hostname, this->make_xmpp_body(topic), this->user_jid);
}
std::string Bridge::get_own_nick(const Iid& iid)
{
IrcClient* irc = this->get_irc_client(iid.server);
if (irc)
return irc->get_own_nick();
return "";
}
size_t Bridge::active_clients() const
{
return this->irc_clients.size();
}
void Bridge::kick_muc_user(Iid&& iid, const std::string& target, const std::string& reason, const std::string& author)
{
this->xmpp->kick_user(iid.chan + "%" + iid.server, target, reason, author, this->user_jid);
}
void Bridge::send_nickname_conflict_error(const Iid& iid, const std::string& nickname)
{
this->xmpp->send_nickname_conflict_error(iid.chan + "%" + iid.server, nickname, this->user_jid);
}
void Bridge::send_affiliation_role_change(const Iid& iid, const std::string& target, const char mode)
{
std::string role;
std::string affiliation;
std::tie(role, affiliation) = get_role_affiliation_from_irc_mode(mode);
this->xmpp->send_affiliation_role_change(iid.chan + "%" + iid.server, target, affiliation, role, this->user_jid);
}
void Bridge::send_iq_version_request(const std::string& nick, const std::string& hostname)
{
this->xmpp->send_iq_version_request(nick + "%" + hostname, this->user_jid);
}