diff options
Diffstat (limited to 'src/bridge')
| -rw-r--r-- | src/bridge/bridge.cpp | 907 | ||||
| -rw-r--r-- | src/bridge/bridge.hpp | 293 | ||||
| -rw-r--r-- | src/bridge/colors.cpp | 170 | ||||
| -rw-r--r-- | src/bridge/colors.hpp | 56 | ||||
| -rw-r--r-- | src/bridge/list_element.hpp | 19 |
5 files changed, 1445 insertions, 0 deletions
diff --git a/src/bridge/bridge.cpp b/src/bridge/bridge.cpp new file mode 100644 index 0000000..17d3ec6 --- /dev/null +++ b/src/bridge/bridge.cpp @@ -0,0 +1,907 @@ +#include <bridge/bridge.hpp> +#include <bridge/list_element.hpp> +#include <xmpp/biboumi_component.hpp> +#include <network/poller.hpp> +#include <utils/empty_if_fixed_server.hpp> +#include <utils/encoding.hpp> +#include <utils/tolower.hpp> +#include <logger/logger.hpp> +#include <utils/revstr.hpp> +#include <utils/split.hpp> +#include <xmpp/jid.hpp> +#include <database/database.hpp> + +using namespace std::string_literals; + +static const char* action_prefix = "\01ACTION "; + + +static std::string in_encoding_for(const Bridge& bridge, const Iid& iid) +{ +#ifdef USE_DATABASE + const auto jid = bridge.get_bare_jid(); + auto options = Database::get_irc_channel_options_with_server_default(jid, iid.get_server(), iid.get_local()); + return options.encodingIn.value(); +#else + return {"ISO-8859-1"}; +#endif +} + +Bridge::Bridge(const std::string& user_jid, BiboumiComponent& xmpp, std::shared_ptr<Poller> poller): + user_jid(user_jid), + xmpp(xmpp), + poller(poller) +{ +} + +/** + * 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(const std::string& exit_message) +{ + for (auto it = this->irc_clients.begin(); it != this->irc_clients.end(); ++it) + { + 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() && + !client->get_resolver().is_resolving()) + it = this->irc_clients.erase(it); + else + ++it; + } +} + +const std::string& Bridge::get_jid() const +{ + return this->user_jid; +} + +std::string Bridge::get_bare_jid() const +{ + Jid jid(this->user_jid); + return jid.local + "@" + jid.domain; +} + +Xmpp::body Bridge::make_xmpp_body(const std::string& str, const std::string& encoding) +{ + std::string res; + if (utils::is_valid_utf8(str.c_str())) + res = str; + else + res = utils::convert_to_utf8(str, encoding.data()); + return irc_format_to_xhtmlim(res); +} + +IrcClient* Bridge::make_irc_client(const std::string& hostname, const std::string& nickname) +{ + try + { + return this->irc_clients.at(hostname).get(); + } + catch (const std::out_of_range& exception) + { + auto username = nickname; + auto realname = nickname; + Jid jid(this->user_jid); + if (Config::get("realname_from_jid", "false") == "true") + { + username = jid.local; + realname = this->get_bare_jid(); + } + this->irc_clients.emplace(hostname, + std::make_shared<IrcClient>(this->poller, hostname, + nickname, username, + realname, jid.domain, + *this)); + std::shared_ptr<IrcClient> irc = this->irc_clients.at(hostname); + 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) + { + throw IRCNotConnected(hostname); + } +} + +IrcClient* Bridge::find_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& nickname, const std::string& password, + const std::string& resource) +{ + const auto hostname = iid.get_server(); + IrcClient* irc = this->make_irc_client(hostname, nickname); + this->add_resource_to_server(hostname, resource); + auto res_in_chan = this->is_resource_in_chan(ChannelKey{iid.get_local(), hostname}, resource); + if (!res_in_chan) + this->add_resource_to_chan(ChannelKey{iid.get_local(), hostname}, resource); + if (iid.get_local().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.get_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.get_local()) == false) + { + irc->send_join_command(iid.get_local(), password); + return true; + } else if (!res_in_chan) { + this->generate_channel_join_for_resource(iid, resource); + } + return false; +} + +void Bridge::send_channel_message(const Iid& iid, const std::string& body) +{ + if (iid.get_server().empty()) + { + for (const auto& resource: this->resources_in_chan[iid.to_tuple()]) + this->xmpp.send_stanza_error("message", this->user_jid + "/" + resource, std::to_string(iid), "", + "cancel", "remote-server-not-found", + std::to_string(iid) + " is not a valid channel name. " + "A correct room jid is of the form: #<chan>%<server>", + false); + return; + } + IrcClient* irc = this->get_irc_client(iid.get_server()); + + // Because an IRC message cannot contain \n, we need to convert each line + // of text into a separate IRC message. For conveniance, we also cut the + // message into submessages on the XMPP side, this way the user of the + // gateway sees what was actually sent over IRC. For example if an user + // sends “hello\n/me waves”, two messages will be generated: “hello” and + // “/me waves”. Note that the “command” handling (messages starting with + // /me, /mode, etc) is done for each message generated this way. In the + // above example, the /me will be interpreted. + std::vector<std::string> lines = utils::split(body, '\n', true); + if (lines.empty()) + return ; + for (const std::string& line: lines) + { + if (line.substr(0, 5) == "/mode") + { + std::vector<std::string> args = utils::split(line.substr(5), ' ', false); + irc->send_mode_command(iid.get_local(), args); + continue; // We do not want to send that back to the + // XMPP user, that’s not a textual message. + } + else if (line.substr(0, 4) == "/me ") + irc->send_channel_message(iid.get_local(), action_prefix + line.substr(4) + "\01"); + else + irc->send_channel_message(iid.get_local(), line); + for (const auto& resource: this->resources_in_chan[iid.to_tuple()]) + this->xmpp.send_muc_message(std::to_string(iid), irc->get_own_nick(), + this->make_xmpp_body(line), this->user_jid + "/" + resource); + } +} + +void Bridge::forward_affiliation_role_change(const Iid& iid, const std::string& nick, + const std::string& affiliation, + const std::string& role) +{ + IrcClient* irc = this->get_irc_client(iid.get_server()); + IrcChannel* chan = irc->get_channel(iid.get_local()); + if (!chan || !chan->joined) + return; + IrcUser* user = chan->find_user(nick); + if (!user) + return; + // For each affiliation or role, we have a “maximal” mode that we want to + // set. We must remove any superior mode at the same time. For example if + // the user already has +o mode, and we set its affiliation to member, we + // remove the +o mode, and add +v. For each “superior” mode (for example, + // for +v, the superior modes are 'h', 'a', 'o' and 'q') we check if that + // user has it, and if yes we remove that mode + + std::size_t nb = 1; // the number of times the nick must be + // repeated in the argument list + std::string modes; // The string of modes to + // add/remove. For example "+v-aoh" + std::vector<char> modes_to_remove; // List of modes to check for removal + if (affiliation == "none") + { + modes = ""; + nb = 0; + modes_to_remove = {'v', 'h', 'o', 'a', 'q'}; + } + else if (affiliation == "member") + { + modes = "+v"; + modes_to_remove = {'h', 'o', 'a', 'q'}; + } + else if (role == "moderator") + { + modes = "+h"; + modes_to_remove = {'o', 'a', 'q'}; + } + else if (affiliation == "admin") + { + modes = "+o"; + modes_to_remove = {'a', 'q'}; + } + else if (affiliation == "owner") + { + modes = "+a"; + modes_to_remove = {'q'}; + } + else + return; + for (const char mode: modes_to_remove) + if (user->modes.find(mode) != user->modes.end()) + { + modes += "-"s + mode; + nb++; + } + if (modes.empty()) + return; + std::vector<std::string> args(nb, nick); + args.insert(args.begin(), modes); + irc->send_mode_command(iid.get_local(), args); +} + +void Bridge::send_private_message(const Iid& iid, const std::string& body, const std::string& type) +{ + if (iid.get_local().empty() || iid.get_server().empty()) + { + this->xmpp.send_stanza_error("message", this->user_jid, std::to_string(iid), "", + "cancel", "remote-server-not-found", + std::to_string(iid) + " is not a valid channel name. " + "A correct room jid is of the form: #<chan>%<server>", + false); + return; + } + IrcClient* irc = this->get_irc_client(iid.get_server()); + std::vector<std::string> lines = utils::split(body, '\n', true); + if (lines.empty()) + return ; + for (const std::string& line: lines) + { + if (line.substr(0, 4) == "/me ") + irc->send_private_message(iid.get_local(), action_prefix + line.substr(4) + "\01", type); + else + irc->send_private_message(iid.get_local(), line, type); + } +} + +void Bridge::send_raw_message(const std::string& hostname, const std::string& body) +{ + IrcClient* irc = this->get_irc_client(hostname); + irc->send_raw(body); +} + +void Bridge::leave_irc_channel(Iid&& iid, std::string&& status_message, const std::string& resource) +{ + IrcClient* irc = this->get_irc_client(iid.get_server()); + const auto key = iid.to_tuple(); + if (!this->is_resource_in_chan(key, resource)) + return ; + + const auto resources = this->number_of_resources_in_chan(key); + if (resources == 1) + { + irc->send_part_command(iid.get_local(), status_message); + // Since there are no resources left in that channel, we don't + // want to receive private messages using this room's JID + this->remove_all_preferred_from_jid_of_room(iid.get_local()); + } + else + { + IrcChannel* chan = irc->get_channel(iid.get_local()); + if (chan) + { + auto nick = chan->get_self()->nick; + this->remove_resource_from_chan(key, resource); + this->send_muc_leave(std::move(iid), std::move(nick), + "Biboumi note: "s + std::to_string(resources - 1) + " resources are still in this channel.", + true, resource); + if (this->number_of_channels_the_resource_is_in(iid.get_server(), resource) == 0) + this->remove_resource_from_server(iid.get_server(), resource); + } + } +} + +void Bridge::send_irc_nick_change(const Iid& iid, const std::string& new_nick) +{ + IrcClient* irc = this->get_irc_client(iid.get_server()); + irc->send_nick_command(new_nick); +} + +void Bridge::send_irc_channel_list_request(const Iid& iid, const std::string& iq_id, + const std::string& to_jid) +{ + IrcClient* irc = this->get_irc_client(iid.get_server()); + + irc->send_list_command(); + + std::vector<ListElement> list; + + irc_responder_callback_t cb = [this, iid, iq_id, to_jid, list=std::move(list)](const std::string& irc_hostname, + const IrcMessage& message) mutable -> bool + { + if (irc_hostname != iid.get_server()) + return false; + if (message.command == "263" || message.command == "RPL_TRYAGAIN" || + message.command == "ERR_TOOMANYMATCHES" || message.command == "ERR_NOSUCHSERVER") + { + std::string text; + if (message.arguments.size() >= 2) + text = message.arguments[1]; + this->xmpp.send_stanza_error("iq", to_jid, std::to_string(iid), iq_id, + "wait", "service-unavailable", text, false); + return true; + } + else if (message.command == "322" || message.command == "RPL_LIST") + { // Add element to list + if (message.arguments.size() == 4) + list.emplace_back(message.arguments[1], message.arguments[2], + message.arguments[3]); + return false; + } + else if (message.command == "323" || message.command == "RPL_LISTEND") + { // Send the iq response with the content of the list + this->xmpp.send_iq_room_list_result(iq_id, to_jid, std::to_string(iid), list); + return true; + } + return false; + }; + this->add_waiting_irc(std::move(cb)); +} + +void Bridge::send_irc_kick(const Iid& iid, const std::string& target, const std::string& reason, + const std::string& iq_id, const std::string& to_jid) +{ + IrcClient* irc = this->get_irc_client(iid.get_server()); + + irc->send_kick_command(iid.get_local(), target, reason); + irc_responder_callback_t cb = [this, target, iq_id, to_jid, iid](const std::string& irc_hostname, + const IrcMessage& message) -> bool + { + if (irc_hostname != iid.get_server()) + return false; + if (message.command == "KICK" && message.arguments.size() >= 2) + { + const std::string target_later = message.arguments[1]; + const std::string chan_name_later = utils::tolower(message.arguments[0]); + if (target_later != target || chan_name_later != iid.get_local()) + return false; + this->xmpp.send_iq_result(iq_id, to_jid, std::to_string(iid)); + } + else if (message.command == "401" && message.arguments.size() >= 2) + { + const std::string target_later = message.arguments[1]; + if (target_later != target) + return false; + std::string error_message = "No such nick"; + if (message.arguments.size() >= 3) + error_message = message.arguments[2]; + this->xmpp.send_stanza_error("iq", to_jid, std::to_string(iid), iq_id, "cancel", "item-not-found", + error_message, false); + } + else if (message.command == "482" && message.arguments.size() >= 2) + { + const std::string chan_name_later = utils::tolower(message.arguments[1]); + if (chan_name_later != iid.get_local()) + return false; + std::string error_message = "You're not channel operator"; + if (message.arguments.size() >= 3) + error_message = message.arguments[2]; + this->xmpp.send_stanza_error("iq", to_jid, std::to_string(iid), iq_id, "cancel", "not-allowed", + error_message, false); + } + return true; + }; + this->add_waiting_irc(std::move(cb)); +} + +void Bridge::set_channel_topic(const Iid& iid, const std::string& subject) +{ + IrcClient* irc = this->get_irc_client(iid.get_server()); + irc->send_topic_command(iid.get_local(), subject); +} + +void Bridge::send_xmpp_version_to_irc(const Iid& iid, const std::string& name, const std::string& version, const std::string& os) +{ + std::string result(name + " " + version + " " + os); + + this->send_private_message(iid, "\01VERSION "s + result + "\01", "NOTICE"); +} + +void Bridge::send_irc_ping_result(const Iid& iid, const std::string& id) +{ + this->send_private_message(iid, "\01PING "s + utils::revstr(id) + "\01", "NOTICE"); +} + +void Bridge::send_irc_user_ping_request(const std::string& irc_hostname, const std::string& nick, + const std::string& iq_id, const std::string& to_jid, + const std::string& from_jid) +{ + Iid iid(nick + "!" + irc_hostname); + this->send_private_message(iid, "\01PING " + iq_id + "\01"); + + irc_responder_callback_t cb = [this, nick=utils::tolower(nick), iq_id, to_jid, irc_hostname, from_jid](const std::string& hostname, const IrcMessage& message) -> bool + { + if (irc_hostname != hostname || message.arguments.size() < 2) + return false; + IrcUser user(message.prefix); + const std::string body = message.arguments[1]; + if (message.command == "NOTICE" && utils::tolower(user.nick) == nick + && body.substr(0, 6) == "\01PING ") + { + const std::string id = body.substr(6, body.size() - 7); + if (id != iq_id) + return false; + this->xmpp.send_iq_result_full_jid(iq_id, to_jid, from_jid); + return true; + } + if (message.command == "401" && message.arguments[1] == nick) + { + std::string error_message = "No such nick"; + if (message.arguments.size() >= 3) + error_message = message.arguments[2]; + this->xmpp.send_stanza_error("iq", to_jid, from_jid, iq_id, "cancel", "service-unavailable", + error_message, true); + return true; + } + + return false; + }; + this->add_waiting_irc(std::move(cb)); +} + +void Bridge::send_irc_participant_ping_request(const Iid& iid, const std::string& nick, + const std::string& iq_id, const std::string& to_jid, + const std::string& from_jid) +{ + IrcClient* irc = this->get_irc_client(iid.get_server()); + IrcChannel* chan = irc->get_channel(iid.get_local()); + if (!chan->joined) + { + this->xmpp.send_stanza_error("iq", to_jid, from_jid, iq_id, "cancel", "not-allowed", + "", true); + return; + } + if (chan->get_self()->nick != nick && !chan->find_user(nick)) + { + this->xmpp.send_stanza_error("iq", to_jid, from_jid, iq_id, "cancel", "item-not-found", + "Recipient not in room", true); + return; + } + + // The user is in the room, send it a direct PING + this->send_irc_user_ping_request(iid.get_server(), nick, iq_id, to_jid, from_jid); +} + +void Bridge::on_gateway_ping(const std::string& irc_hostname, const std::string& iq_id, const std::string& to_jid, + const std::string& from_jid) +{ + Jid jid(from_jid); + if (irc_hostname.empty() || this->find_irc_client(irc_hostname)) + this->xmpp.send_iq_result(iq_id, to_jid, jid.local); + else + this->xmpp.send_stanza_error("iq", to_jid, from_jid, iq_id, "cancel", "service-unavailable", + "", true); +} + +void Bridge::send_irc_version_request(const std::string& irc_hostname, const std::string& target, + const std::string& iq_id, const std::string& to_jid, + const std::string& from_jid) +{ + Iid iid(target + "!" + irc_hostname); + this->send_private_message(iid, "\01VERSION\01"); + // TODO, add a timer to remove that waiting iq if the server does not + // respond with a matching command before n seconds + irc_responder_callback_t cb = [this, target, iq_id, to_jid, irc_hostname, from_jid](const std::string& hostname, const IrcMessage& message) -> bool + { + if (irc_hostname != hostname) + return false; + IrcUser user(message.prefix); + if (message.command == "NOTICE" && user.nick == target && + message.arguments.size() >= 2 && message.arguments[1].substr(0, 9) == "\01VERSION ") + { + // remove the "\01VERSION " and the "\01" parts from the string + const std::string version = message.arguments[1].substr(9, message.arguments[1].size() - 10); + this->xmpp.send_version(iq_id, to_jid, from_jid, version); + return true; + } + if (message.command == "401" && message.arguments.size() >= 2 + && message.arguments[1] == target) + { + std::string error_message = "No such nick"; + if (message.arguments.size() >= 3) + error_message = message.arguments[2]; + this->xmpp.send_stanza_error("iq", to_jid, from_jid, iq_id, "cancel", "item-not-found", + error_message, true); + return true; + } + return false; + }; + this->add_waiting_irc(std::move(cb)); +} + +void Bridge::send_message(const Iid& iid, const std::string& nick, const std::string& body, const bool muc) +{ + const auto encoding = in_encoding_for(*this, iid); + if (muc) + { + for (const auto& resource: this->resources_in_chan[iid.to_tuple()]) + { + this->xmpp.send_muc_message(std::to_string(iid), nick, + this->make_xmpp_body(body, encoding), this->user_jid + "/" + resource); + } + } + else + { + std::string target = std::to_string(iid); + const auto it = this->preferred_user_from.find(iid.get_local()); + if (it != this->preferred_user_from.end()) + { + const auto chan_name = Iid(Jid(it->second).local).get_local(); + for (const auto& resource: this->resources_in_chan[ChannelKey{chan_name, iid.get_server()}]) + this->xmpp.send_message(it->second, this->make_xmpp_body(body, encoding), + this->user_jid + "/" + resource, "chat", true); + } + else + { + for (const auto& resource: this->resources_in_server[iid.get_server()]) + this->xmpp.send_message(std::to_string(iid), this->make_xmpp_body(body, encoding), + this->user_jid + "/" + resource, "chat", false); + } + } +} + +void Bridge::send_presence_error(const Iid& iid, const std::string& nick, + const std::string& type, const std::string& condition, + const std::string& error_code, const std::string& text) +{ + this->xmpp.send_presence_error(std::to_string(iid), nick, this->user_jid, type, condition, error_code, text); +} + +void Bridge::send_muc_leave(Iid&& iid, std::string&& nick, const std::string& message, const bool self, const std::string& resource) +{ + if (!resource.empty()) + this->xmpp.send_muc_leave(std::to_string(iid), std::move(nick), this->make_xmpp_body(message), this->user_jid + "/" + resource, + self); + else + for (const auto& res: this->resources_in_chan[iid.to_tuple()]) + this->xmpp.send_muc_leave(std::to_string(iid), std::move(nick), this->make_xmpp_body(message), this->user_jid + "/" + res, + self); + IrcClient* irc = this->find_irc_client(iid.get_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); + + for (const auto& resource: this->resources_in_chan[iid.to_tuple()]) + this->xmpp.send_nick_change(std::to_string(iid), + old_nick, new_nick, affiliation, role, this->user_jid + "/" + resource, 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; + + const auto encoding = in_encoding_for(*this, {from}); + for (const auto& resource: this->resources_in_server[from]) + { + this->xmpp.send_message(from, this->make_xmpp_body(body, encoding), this->user_jid + "/" + resource, "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) +{ + for (const auto& resource: this->resources_in_chan[ChannelKey{chan_name, hostname}]) + this->send_user_join(hostname, chan_name, user, user_mode, self, resource); +} + +void Bridge::send_user_join(const std::string& hostname, const std::string& chan_name, + const IrcUser* user, const char user_mode, + const bool self, const std::string& resource) +{ + std::string affiliation; + std::string role; + std::tie(role, affiliation) = get_role_affiliation_from_irc_mode(user_mode); + + std::string encoded_chan_name(chan_name); + xep0106::encode(encoded_chan_name); + + this->xmpp.send_user_join(encoded_chan_name + utils::empty_if_fixed_server("%" + hostname), user->nick, user->host, + affiliation, role, this->user_jid + "/" + resource, self); +} + +void Bridge::send_topic(const std::string& hostname, const std::string& chan_name, const std::string& topic, const std::string& who) +{ + for (const auto& resource: this->resources_in_chan[ChannelKey{chan_name, hostname}]) + { + this->send_topic(hostname, chan_name, topic, who, resource); + } +} + +void Bridge::send_topic(const std::string& hostname, const std::string& chan_name, + const std::string& topic, const std::string& who, + const std::string& resource) +{ + std::string encoded_chan_name(chan_name); + xep0106::encode(encoded_chan_name); + const auto encoding = in_encoding_for(*this, {encoded_chan_name + '%' + hostname}); + this->xmpp.send_topic(encoded_chan_name + utils::empty_if_fixed_server( + "%" + hostname), this->make_xmpp_body(topic, encoding), this->user_jid + "/" + resource, who); + +} + +std::string Bridge::get_own_nick(const Iid& iid) +{ + IrcClient* irc = this->find_irc_client(iid.get_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) +{ + for (const auto& resource: this->resources_in_chan[iid.to_tuple()]) + this->xmpp.kick_user(std::to_string(iid), target, reason, author, this->user_jid + "/" + resource); +} + +void Bridge::send_nickname_conflict_error(const Iid& iid, const std::string& nickname) +{ + for (const auto& resource: this->resources_in_chan[iid.to_tuple()]) + this->xmpp.send_presence_error(std::to_string(iid), nickname, this->user_jid + "/" + resource, "cancel", "conflict", "409", ""); +} + +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); + for (const auto& resource: this->resources_in_chan[iid.to_tuple()]) + this->xmpp.send_affiliation_role_change(std::to_string(iid), target, affiliation, role, this->user_jid + "/" + resource); +} + +void Bridge::send_iq_version_request(const std::string& nick, const std::string& hostname) +{ + const auto resources = this->resources_in_server[hostname]; + if (resources.begin() != resources.end()) + this->xmpp.send_iq_version_request(utils::tolower(nick) + "!" + utils::empty_if_fixed_server(hostname), this->user_jid + "/" + *resources.begin()); +} + +void Bridge::send_xmpp_ping_request(const std::string& nick, const std::string& hostname, + const std::string& id) +{ + // Use revstr because the forwarded ping to target XMPP user must not be + // the same that the request iq, but we also need to get it back easily + // (revstr again) + // Forward to the first resource (arbitrary, based on the “order” of the std::set) only + const auto resources = this->resources_in_server[hostname]; + if (resources.begin() != resources.end()) + this->xmpp.send_ping_request(utils::tolower(nick) + "!" + utils::empty_if_fixed_server(hostname), this->user_jid + "/" + *resources.begin(), utils::revstr(id)); +} + +void Bridge::set_preferred_from_jid(const std::string& nick, const std::string& full_jid) +{ + auto it = this->preferred_user_from.find(nick); + if (it == this->preferred_user_from.end()) + this->preferred_user_from.emplace(nick, full_jid); + else + this->preferred_user_from[nick] = full_jid; +} + +void Bridge::remove_preferred_from_jid(const std::string& nick) +{ + auto it = this->preferred_user_from.find(nick); + if (it != this->preferred_user_from.end()) + this->preferred_user_from.erase(it); +} + +void Bridge::remove_all_preferred_from_jid_of_room(const std::string& channel_name) +{ + for (auto it = this->preferred_user_from.begin(); it != this->preferred_user_from.end();) + { + Iid iid(Jid(it->second).local); + if (iid.get_local() == channel_name) + it = this->preferred_user_from.erase(it); + else + ++it; + } +} + +void Bridge::add_waiting_irc(irc_responder_callback_t&& callback) +{ + this->waiting_irc.emplace_back(std::move(callback)); +} + +void Bridge::trigger_on_irc_message(const std::string& irc_hostname, const IrcMessage& message) +{ + auto it = this->waiting_irc.begin(); + while (it != this->waiting_irc.end()) + { + if ((*it)(irc_hostname, message) == true) + it = this->waiting_irc.erase(it); + else + ++it; + } +} + +std::unordered_map<std::string, std::shared_ptr<IrcClient>>& Bridge::get_irc_clients() +{ + return this->irc_clients; +} + +void Bridge::add_resource_to_chan(const Bridge::ChannelKey& channel, const std::string& resource) +{ + auto it = this->resources_in_chan.find(channel); + if (it == this->resources_in_chan.end()) + this->resources_in_chan[channel] = {resource}; + else + it->second.insert(resource); +} + +void Bridge::remove_resource_from_chan(const Bridge::ChannelKey& channel, const std::string& resource) +{ + auto it = this->resources_in_chan.find(channel); + if (it != this->resources_in_chan.end()) + { + it->second.erase(resource); + if (it->second.empty()) + this->resources_in_chan.erase(it); + } +} + +bool Bridge::is_resource_in_chan(const Bridge::ChannelKey& channel, const std::string& resource) const +{ + auto it = this->resources_in_chan.find(channel); + if (it != this->resources_in_chan.end()) + if (it->second.count(resource) == 1) + return true; + return false; +} + +void Bridge::add_resource_to_server(const Bridge::IrcHostname& irc_hostname, const std::string& resource) +{ + auto it = this->resources_in_server.find(irc_hostname); + if (it == this->resources_in_server.end()) + this->resources_in_server[irc_hostname] = {resource}; + else + it->second.insert(resource); +} + +void Bridge::remove_resource_from_server(const Bridge::IrcHostname& irc_hostname, const std::string& resource) +{ + auto it = this->resources_in_server.find(irc_hostname); + if (it != this->resources_in_server.end()) + { + it->second.erase(resource); + if (it->second.empty()) + this->resources_in_server.erase(it); + } +} + +bool Bridge::is_resource_in_server(const Bridge::IrcHostname& irc_hostname, const std::string& resource) const +{ + auto it = this->resources_in_server.find(irc_hostname); + if (it != this->resources_in_server.end()) + if (it->second.count(resource) == 1) + return true; + return false; +} + +std::size_t Bridge::number_of_resources_in_chan(const Bridge::ChannelKey& channel_key) const +{ + auto it = this->resources_in_chan.find(channel_key); + if (it == this->resources_in_chan.end()) + return 0; + return it->second.size(); +} + +std::size_t Bridge::number_of_channels_the_resource_is_in(const std::string& irc_hostname, const std::string& resource) const +{ + std::size_t res = 0; + for (auto pair: this->resources_in_chan) + { + if (std::get<0>(pair.first) == irc_hostname && pair.second.count(resource) != 0) + res++; + } + return res; +} + +void Bridge::generate_channel_join_for_resource(const Iid& iid, const std::string& resource) +{ + IrcClient* irc = this->get_irc_client(iid.get_server()); + IrcChannel* channel = irc->get_channel(iid.get_local()); + const auto self = channel->get_self(); + + // Send the occupant list + for (const auto& user: channel->get_users()) + { + if (user->nick != self->nick) + { + log_debug(user->nick); + this->send_user_join(iid.get_server(), iid.get_encoded_local(), + user.get(), user->get_most_significant_mode(irc->get_sorted_user_modes()), + false, resource); + } + } + this->send_user_join(iid.get_server(), iid.get_encoded_local(), + self, self->get_most_significant_mode(irc->get_sorted_user_modes()), + true, resource); + this->send_topic(iid.get_server(), iid.get_encoded_local(), channel->topic, channel->topic_author, resource); +} diff --git a/src/bridge/bridge.hpp b/src/bridge/bridge.hpp new file mode 100644 index 0000000..69b7bd5 --- /dev/null +++ b/src/bridge/bridge.hpp @@ -0,0 +1,293 @@ +#pragma once + + +#include <irc/irc_message.hpp> +#include <irc/irc_client.hpp> +#include <bridge/colors.hpp> +#include <irc/irc_user.hpp> +#include <irc/iid.hpp> + +#include <unordered_map> +#include <functional> +#include <exception> +#include <string> +#include <memory> + +class BiboumiComponent; +class Poller; + +/** + * A callback called for each IrcMessage we receive. If the message triggers + * a response, it must send ore or more iq and return true (in that case it + * is removed from the list), otherwise it must do nothing and just return + * false. + */ +using irc_responder_callback_t = std::function<bool(const std::string& irc_hostname, const IrcMessage& message)>; + +/** + * One bridge is spawned for each XMPP user that uses the component. The + * bridge spawns IrcClients when needed (when the user wants to join a + * channel on a new server) and does the translation between the two + * protocols. + */ +class Bridge +{ +public: + explicit Bridge(const std::string& user_jid, BiboumiComponent& xmpp, std::shared_ptr<Poller> poller); + ~Bridge() = default; + + Bridge(const Bridge&) = delete; + Bridge(Bridge&& other) = delete; + Bridge& operator=(const Bridge&) = delete; + Bridge& operator=(Bridge&&) = delete; + /** + * QUIT all connected IRC servers. + */ + void shutdown(const std::string& exit_message); + /** + * Remove all inactive IrcClients + */ + void clean(); + /** + * Return the jid of the XMPP user using this bridge + */ + const std::string& get_jid() const; + std::string get_bare_jid() const; + + static Xmpp::body make_xmpp_body(const std::string& str, const std::string& encoding = "ISO-8859-1"); + /*** + ** + ** From XMPP to IRC. + ** + **/ + + /** + * Try to join an irc_channel, does nothing and return true if the channel + * was already joined. + */ + bool join_irc_channel(const Iid& iid, const std::string& nickname, const std::string& password, const std::string& resource); + + void send_channel_message(const Iid& iid, const std::string& body); + void send_private_message(const Iid& iid, const std::string& body, const std::string& type="PRIVMSG"); + void send_raw_message(const std::string& hostname, const std::string& body); + void leave_irc_channel(Iid&& iid, std::string&& status_message, const std::string& resource); + void send_irc_nick_change(const Iid& iid, const std::string& new_nick); + void send_irc_kick(const Iid& iid, const std::string& target, const std::string& reason, + const std::string& iq_id, const std::string& to_jid); + void set_channel_topic(const Iid& iid, const std::string& subject); + void send_xmpp_version_to_irc(const Iid& iid, const std::string& name, const std::string& version, + const std::string& os); + void send_irc_ping_result(const Iid& iid, const std::string& id); + void send_irc_version_request(const std::string& irc_hostname, const std::string& target, + const std::string& iq_id, const std::string& to_jid, + const std::string& from_jid); + void send_irc_channel_list_request(const Iid& iid, const std::string& iq_id, + const std::string& to_jid); + void forward_affiliation_role_change(const Iid& iid, const std::string& nick, + const std::string& affiliation, const std::string& role); + /** + * Directly send a CTCP PING request to the IRC user + */ + void send_irc_user_ping_request(const std::string& irc_hostname, const std::string& nick, + const std::string& iq_id, const std::string& to_jid, + const std::string& from_jid); + /** + * First check if the participant is in the room, before sending a direct + * CTCP PING request to the IRC user + */ + void send_irc_participant_ping_request(const Iid& iid, const std::string& nick, + const std::string& iq_id, const std::string& to_jid, + const std::string& from_jid); + /** + * Directly send back a result if it's a gateway ping or if we are + * connected to the given IRC server, an error otherwise. + */ + void on_gateway_ping(const std::string& irc_hostname, const std::string& iq_id, const std::string& to_jid, + const std::string& from_jid); + + /*** + ** + ** From IRC to XMPP. + ** + **/ + + /** + * Send a message corresponding to a server NOTICE, the from attribute + * should be juste the server hostname. + */ + void send_xmpp_message(const std::string& from, const std::string& author, const std::string& msg); + /** + * Send the presence of a new user in the MUC. + */ + void send_user_join(const std::string& hostname, const std::string& chan_name, + const IrcUser* user, const char user_mode, + const bool self, const std::string& resource); + void send_user_join(const std::string& hostname, const std::string& chan_name, + const IrcUser* user, const char user_mode, + const bool self); + + /** + * Send the topic of the MUC to the user + */ + void send_topic(const std::string& hostname, const std::string& chan_name, const std::string& topic, const std::string& who); + void send_topic(const std::string& hostname, const std::string& chan_name, const std::string& topic, const std::string& who, const std::string& resource); + /** + * Send a MUC message from some participant + */ + void send_message(const Iid& iid, const std::string& nick, const std::string& body, const bool muc); + /** + * Send a presence of type error, from a room. + */ + void send_presence_error(const Iid& iid, const std::string& nick, const std::string& type, const std::string& condition, const std::string& error_code, const std::string& text); + /** + * Send an unavailable presence from this participant + */ + void send_muc_leave(Iid&& iid, std::string&& nick, const std::string& message, const bool self, const std::string& resource=""); + /** + * Send presences to indicate that an user old_nick (ourself if self == + * true) changed his nick to new_nick. The user_mode is needed because + * the xmpp presence needs ton contain the role and affiliation of the + * user. + */ + void send_nick_change(Iid&& iid, + const std::string& old_nick, + const std::string& new_nick, + const char user_mode, + const bool self); + void kick_muc_user(Iid&& iid, const std::string& target, const std::string& reason, const std::string& author); + void send_nickname_conflict_error(const Iid& iid, const std::string& nickname); + /** + * Send a role/affiliation change, matching the change of mode for that user + */ + void send_affiliation_role_change(const Iid& iid, const std::string& target, const char mode); + /** + * Send an iq version request coming from nick!hostname@ + */ + void send_iq_version_request(const std::string& nick, const std::string& hostname); + /** + * Send an iq ping request coming from nick!hostname@ + */ + void send_xmpp_ping_request(const std::string& nick, const std::string& hostname, + const std::string& id); + /** + * Misc + */ + std::string get_own_nick(const Iid& iid); + /** + * Get the number of server to which this bridge is connected or connecting. + */ + size_t active_clients() const; + /** + * Add (or replace the existing) <nick, jid> into the preferred_user_from map + */ + void set_preferred_from_jid(const std::string& nick, const std::string& full_jid); + /** + * Remove the preferred jid for the given IRC nick + */ + void remove_preferred_from_jid(const std::string& nick); + /** + * Given a channel_name, remove all preferred from_jid that come + * from this chan. + */ + void remove_all_preferred_from_jid_of_room(const std::string& channel_name); + /** + * Add a callback to the waiting list of irc callbacks. + */ + void add_waiting_irc(irc_responder_callback_t&& callback); + /** + * Iter over all the waiting_iq, call the iq_responder_filter_t for each, + * whenever one of them returns true: call the corresponding + * iq_responder_callback_t and remove the callback from the list. + */ + void trigger_on_irc_message(const std::string& irc_hostname, const IrcMessage& message); + std::unordered_map<std::string, std::shared_ptr<IrcClient>>& get_irc_clients(); + +private: + /** + * Returns the client for the given hostname, create one (and use the + * username in this case) if none is found, and connect that newly-created + * client immediately. + */ + IrcClient* make_irc_client(const std::string& hostname, const std::string& nickname); + /** + * This version does not create the IrcClient if it does not exist, throws + * a IRCServerNotConnected error in that case. + */ + IrcClient* get_irc_client(const std::string& hostname); + /** + * Idem, but returns nullptr if the server does not exist. + */ + IrcClient* find_irc_client(const std::string& hostname); + /** + * The bare JID of the user associated with this bridge. Messages from/to this + * JID are only managed by this bridge. + */ + const std::string user_jid; + /** + * One IrcClient for each IRC server we need to be connected to. + * The pointer is shared by the bridge and the poller. + */ + std::unordered_map<std::string, std::shared_ptr<IrcClient>> irc_clients; + /** + * To communicate back with the XMPP component + */ + BiboumiComponent& xmpp; + /** + * Poller, to give it the IrcClients that we spawn, to make it manage + * their sockets. + */ + std::shared_ptr<Poller> poller; + /** + * A map of <nick, full_jid>. For example if this map contains <"toto", + * "#somechan%server@biboumi/ToTo">, whenever a private message is + * received from the user "toto", instead of forwarding it to XMPP with + * from='toto!server@biboumi', we use instead + * from='#somechan%server@biboumi/ToTo' + */ + std::unordered_map<std::string, std::string> preferred_user_from; + /** + * A list of callbacks that are waiting for some IrcMessage to trigger a + * response. We add callbacks in this list whenever we received an IQ + * request and we need a response from IRC to be able to provide the + * response iq. + */ + std::vector<irc_responder_callback_t> waiting_irc; + + /** + * Resources to IRC channel/server mapping: + */ + using Resource = std::string; + using ChannelName = std::string; + using IrcHostname = std::string; + using ChannelKey = std::tuple<ChannelName, IrcHostname>; + std::map<ChannelKey, std::set<Resource>> resources_in_chan; + std::map<IrcHostname, std::set<Resource>> resources_in_server; + /** + * Manage which resource is in which channel + */ + void add_resource_to_chan(const ChannelKey& channel_key, const std::string& resource); + void remove_resource_from_chan(const ChannelKey& channel_key, const std::string& resource); + bool is_resource_in_chan(const ChannelKey& channel_key, const std::string& resource) const; + std::size_t number_of_resources_in_chan(const ChannelKey& channel_key) const; + + void add_resource_to_server(const IrcHostname& irc_hostname, const std::string& resource); + void remove_resource_from_server(const IrcHostname& irc_hostname, const std::string& resource); + bool is_resource_in_server(const IrcHostname& irc_hostname, const std::string& resource) const; + size_t number_of_channels_the_resource_is_in(const std::string& irc_hostname, const std::string& resource) const; + + /** + * Generate all the stanzas to be sent to this resource, simulating a join on this channel. + * This means sending the whole user list, the topic, etc + * TODO: send message history + */ + void generate_channel_join_for_resource(const Iid& iid, const std::string& resource); +}; + +struct IRCNotConnected: public std::exception +{ + IRCNotConnected(const std::string& hostname): + hostname(hostname) {} + const std::string hostname; +}; + + diff --git a/src/bridge/colors.cpp b/src/bridge/colors.cpp new file mode 100644 index 0000000..66f51ee --- /dev/null +++ b/src/bridge/colors.cpp @@ -0,0 +1,170 @@ +#include <bridge/colors.hpp> +#include <xmpp/xmpp_stanza.hpp> + +#include <algorithm> +#include <iostream> + +#include <string.h> + +using namespace std::string_literals; + +static const char IRC_NUM_COLORS = 16; + +static const char* irc_colors_to_css[IRC_NUM_COLORS] = { + "white", + "black", + "blue", + "green", + "indianred", + "red", + "magenta", + "brown", + "yellow", + "lightgreen", + "cyan", + "lightcyan", + "lightblue", + "lightmagenta", + "gray", + "white", +}; + +#define XHTML_NS "http://www.w3.org/1999/xhtml" + +struct styles_t +{ + bool strong; + bool underline; + bool italic; + int fg; + int bg; +}; + +/** We keep the currently-applied CSS styles in a structure. Each time a tag + * is found, update this style list, then close the current span XML element + * (if it is open), then reopen it with all the new styles in it. This is + * done this way because IRC formatting does not map well with XML + * (hierarchical tags), it’s a lot easier and cleaner to remove all styles + * and reapply them for each tag, instead of trying to keep a consistent + * hierarchy of span, strong, em etc tags. The generated XML is one-level + * deep only. +*/ +Xmpp::body irc_format_to_xhtmlim(const std::string& s) +{ + if (s.find_first_of(irc_format_char) == std::string::npos) + // there is no special formatting at all + return std::make_tuple(s, nullptr); + + std::string cleaned; + + styles_t styles = {false, false, false, -1, -1}; + + std::unique_ptr<XmlNode> result = std::make_unique<XmlNode>("body"); + (*result)["xmlns"] = XHTML_NS; + + std::unique_ptr<XmlNode> current_node_up; + XmlNode* current_node = result.get(); + + std::string::size_type pos_start = 0; + std::string::size_type pos_end; + + while ((pos_end = s.find_first_of(irc_format_char, pos_start)) != std::string::npos) + { + const std::string txt = s.substr(pos_start, pos_end-pos_start); + cleaned += txt; + if (current_node->has_children()) + current_node->get_last_child()->add_to_tail(txt); + else + current_node->add_to_inner(txt); + + if (s[pos_end] == IRC_FORMAT_BOLD_CHAR) + styles.strong = !styles.strong; + else if (s[pos_end] == IRC_FORMAT_NEWLINE_CHAR) + { + current_node->add_child(std::make_unique<XmlNode>("br")); + cleaned += '\n'; + } + else if (s[pos_end] == IRC_FORMAT_UNDERLINE_CHAR) + styles.underline = !styles.underline; + else if (s[pos_end] == IRC_FORMAT_ITALIC_CHAR) + styles.italic = !styles.italic; + else if (s[pos_end] == IRC_FORMAT_RESET_CHAR) + styles = {false, false, false, -1, -1}; + else if (s[pos_end] == IRC_FORMAT_REVERSE_CHAR) + { } // TODO + else if (s[pos_end] == IRC_FORMAT_REVERSE2_CHAR) + { } // TODO + else if (s[pos_end] == IRC_FORMAT_FIXED_CHAR) + { } // TODO + else if (s[pos_end] == IRC_FORMAT_COLOR_CHAR) + { + size_t pos = pos_end + 1; + styles.fg = -1; + styles.bg = -1; + // get the first number following the format char + if (pos < s.size() && s[pos] >= '0' && s[pos] <= '9') + { // first digit + styles.fg = s[pos++] - '0'; + if (pos < s.size() && s[pos] >= '0' && s[pos] <= '9') + // second digit + styles.fg = styles.fg * 10 + s[pos++] - '0'; + } + if (pos < s.size() && s[pos] == ',') + { // get bg color after the comma + pos++; + if (pos < s.size() && s[pos] >= '0' && s[pos] <= '9') + { // first digit + styles.bg = s[pos++] - '0'; + if (pos < s.size() && s[pos] >= '0' && s[pos] <= '9') + // second digit + styles.bg = styles.bg * 10 + s[pos++] - '0'; + } + } + pos_end = pos - 1; + } + + // close opened span, if any + if (current_node != result.get()) + { + result->add_child(std::move(current_node_up)); + current_node = result.get(); + } + // Take all currently-applied style and create a new span with it + std::string styles_str; + if (styles.strong) + styles_str += "font-weight:bold;"; + if (styles.underline) + styles_str += "text-decoration:underline;"; + if (styles.italic) + styles_str += "font-style:italic;"; + if (styles.fg != -1) + styles_str += "color:"s + + irc_colors_to_css[styles.fg % IRC_NUM_COLORS] + ";"; + if (styles.bg != -1) + styles_str += "background-color:"s + + irc_colors_to_css[styles.bg % IRC_NUM_COLORS] + ";"; + if (!styles_str.empty()) + { + current_node_up = std::make_unique<XmlNode>("span"); + current_node = current_node_up.get(); + (*current_node)["style"] = styles_str; + } + + pos_start = pos_end + 1; + } + + // If some text remains, without any format char, just append that text at + // the end of the current node + const std::string txt = s.substr(pos_start, pos_end-pos_start); + cleaned += txt; + if (current_node->has_children()) + current_node->get_last_child()->add_to_tail(txt); + else + current_node->add_to_inner(txt); + + if (current_node != result.get()) + result->add_child(std::move(current_node_up)); + + Xmpp::body body_res = std::make_tuple(cleaned, std::move(result)); + return body_res; +} diff --git a/src/bridge/colors.hpp b/src/bridge/colors.hpp new file mode 100644 index 0000000..e2c8a87 --- /dev/null +++ b/src/bridge/colors.hpp @@ -0,0 +1,56 @@ +#pragma once + + +/** + * A module handling the conversion between IRC colors and XHTML-IM, and + * vice versa. + */ + +#include <string> +#include <memory> +#include <tuple> + +class XmlNode; + +namespace Xmpp +{ +// Contains: +// - an XMPP-valid UTF-8 body +// - an XML node representing the XHTML-IM body, or null + using body = std::tuple<const std::string, std::unique_ptr<XmlNode>>; +} + +#define IRC_FORMAT_BOLD_CHAR '\x02' // done +#define IRC_FORMAT_COLOR_CHAR '\x03' // done +#define IRC_FORMAT_RESET_CHAR '\x0F' // done +#define IRC_FORMAT_FIXED_CHAR '\x11' // ?? +#define IRC_FORMAT_REVERSE_CHAR '\x12' // maybe one day +#define IRC_FORMAT_REVERSE2_CHAR '\x16' // wat +#define IRC_FORMAT_ITALIC_CHAR '\x1D' // done +#define IRC_FORMAT_UNDERLINE_CHAR '\x1F' // done +#define IRC_FORMAT_NEWLINE_CHAR '\n' // done + +static const char irc_format_char[] = { + IRC_FORMAT_BOLD_CHAR, + IRC_FORMAT_COLOR_CHAR, + IRC_FORMAT_RESET_CHAR, + IRC_FORMAT_FIXED_CHAR, + IRC_FORMAT_REVERSE_CHAR, + IRC_FORMAT_REVERSE2_CHAR, + IRC_FORMAT_ITALIC_CHAR, + IRC_FORMAT_UNDERLINE_CHAR, + IRC_FORMAT_NEWLINE_CHAR, + '\x00' +}; + +/** + * Convert the passed string into an XML tree representing the XHTML version + * of the message, converting the IRC colors symbols into xhtml-im + * formatting. + * + * Returns the body cleaned from any IRC formatting (but without any xhtml), + * and the body as XHTML-IM + */ +Xmpp::body irc_format_to_xhtmlim(const std::string& str); + + diff --git a/src/bridge/list_element.hpp b/src/bridge/list_element.hpp new file mode 100644 index 0000000..1eff2ee --- /dev/null +++ b/src/bridge/list_element.hpp @@ -0,0 +1,19 @@ +#pragma once + + +#include <string> + +struct ListElement +{ + ListElement(const std::string& channel, const std::string& nb_users, + const std::string& topic): + channel(channel), + nb_users(nb_users), + topic(topic){} + + std::string channel; + std::string nb_users; + std::string topic; +}; + + |