/* * ngIRCd Protocol module for Anope IRC Services * * (C) 2012 Anope Team * (C) 2011-2012 Alexander Barton * (C) 2011 Anope Team * * Please read COPYING and README for further details. * * Based on the original code of Epona by Lara. * Based on the original code of Services by Andy Church. */ #include "module.h" class ngIRCdProto : public IRCDProto { public: ngIRCdProto() : IRCDProto("ngIRCd") { DefaultPseudoclientModes = "+oi"; CanSVSNick = true; MaxModes = 5; } void SendAkill(User *u, XLine *x) anope_override { // Calculate the time left before this would expire, capping it at 2 days time_t timeleft = x->Expires - Anope::CurTime; if (timeleft > 172800 || !x->Expires) timeleft = 172800; UplinkSocket::Message(Me) << "GLINE " << x->Mask << " " << timeleft << " :" << x->GetReason() << " (" << x->By << ")"; } void SendAkillDel(const XLine *x) anope_override { UplinkSocket::Message(Me) << "GLINE " << x->Mask; } void SendChannel(Channel *c) anope_override { UplinkSocket::Message(Me) << "CHANINFO " << c->name << " +" << c->GetModes(true, true); } // Received: :dev.anope.de NICK DukeP 1 ~DukePyro p57ABF9C9.dip.t-dialin.net 1 +i :DukePyrolator void SendClientIntroduction(const User *u) anope_override { Anope::string modes = "+" + u->GetModes(); UplinkSocket::Message(Me) << "NICK " << u->nick << " 1 " << u->GetIdent() << " " << u->host << " 1 " << modes << " :" << u->realname; } void SendConnect() anope_override { UplinkSocket::Message() << "PASS " << Config->Uplinks[CurrentUplink]->password << " 0210-IRC+ Anope|" << Anope::VersionShort() << ":CLHSo P"; /* Make myself known to myself in the serverlist */ SendServer(Me); /* finish the enhanced server handshake and register the connection */ this->SendNumeric(376, "*", ":End of MOTD command"); } void SendForceNickChange(const User *u, const Anope::string &newnick, time_t when) anope_override { UplinkSocket::Message(Me) << "SVSNICK " << u->nick << " " << newnick; } void SendGlobalNotice(const BotInfo *bi, const Server *dest, const Anope::string &msg) anope_override { UplinkSocket::Message(bi) << "NOTICE $" << dest->GetName() << " :" << msg; } void SendGlobalPrivmsg(const BotInfo *bi, const Server *dest, const Anope::string &msg) anope_override { UplinkSocket::Message(bi) << "PRIVMSG $" << dest->GetName() << " :" << msg; } void SendGlobopsInternal(const BotInfo *source, const Anope::string &buf) anope_override { if (source) UplinkSocket::Message(source) << "WALLOPS :" << buf; else UplinkSocket::Message(Me) << "WALLOPS :" << buf; } void SendJoin(const User *user, Channel *c, const ChannelStatus *status) anope_override { UplinkSocket::Message(user) << "JOIN " << c->name; if (status) { /* First save the channel status incase uc->Status == status */ ChannelStatus cs = *status; /* If the user is internally on the channel with flags, kill them so that * the stacker will allow this. */ UserContainer *uc = c->FindUser(user); if (uc != NULL) uc->Status->ClearFlags(); BotInfo *setter = findbot(user->nick); for (unsigned i = 0; i < ModeManager::ChannelModes.size(); ++i) if (cs.HasFlag(ModeManager::ChannelModes[i]->Name)) c->SetMode(setter, ModeManager::ChannelModes[i], user->GetUID(), false); } } void SendKickInternal(const BotInfo *bi, const Channel *chan, const User *user, const Anope::string &buf) anope_override { if (!buf.empty()) UplinkSocket::Message(bi) << "KICK " << chan->name << " " << user->nick << " :" << buf; else UplinkSocket::Message(bi) << "KICK " << chan->name << " " << user->nick; } void SendLogin(User *u) anope_override { } void SendLogout(User *u) anope_override { } void SendModeInternal(const BotInfo *bi, const Channel *dest, const Anope::string &buf) anope_override { if (bi) UplinkSocket::Message(bi) << "MODE " << dest->name << " " << buf; else UplinkSocket::Message(Me) << "MODE " << dest->name << " " << buf; } void SendModeInternal(const BotInfo *bi, const User *u, const Anope::string &buf) anope_override { if (bi) UplinkSocket::Message(bi) << "MODE " << u->nick << " " << buf; else UplinkSocket::Message(Me) << "MODE " << u->nick << " " << buf; } void SendPartInternal(const BotInfo *bi, const Channel *chan, const Anope::string &buf) anope_override { if (!buf.empty()) UplinkSocket::Message(bi) << "PART " << chan->name << " :" << buf; else UplinkSocket::Message(bi) << "PART " << chan->name; } /* SERVER name hop descript */ void SendServer(const Server *server) anope_override { UplinkSocket::Message() << "SERVER " << server->GetName() << " " << server->GetHops() << " :" << server->GetDescription(); } void SendTopic(BotInfo *bi, Channel *c) anope_override { UplinkSocket::Message(bi) << "TOPIC " << c->name << " :" << c->topic; } }; struct IRCDMessage005 : IRCDMessage { IRCDMessage005() : IRCDMessage("005", 1) { SetFlag(IRCDMESSAGE_SOFT_LIMIT); } // Please see for details. bool Run(MessageSource &source, const std::vector ¶ms) anope_override { size_t pos; Anope::string parameter, data; for (unsigned i = 0, end = params.size(); i < end; ++i) { pos = params[i].find('='); if (pos != Anope::string::npos) { parameter = params[i].substr(0, pos); data = params[i].substr(pos+1, params[i].length()); if (parameter == "MODES") { unsigned maxmodes = convertTo(data); ircdproto->MaxModes = maxmodes; } else if (parameter == "NICKLEN") { unsigned newlen = convertTo(data); if (Config->NickLen != newlen) { Log() << "NickLen changed from " << Config->NickLen << " to " << newlen; Config->NickLen = newlen; } } } } return true; } }; struct IRCDMessage376 : IRCDMessage { IRCDMessage376() : IRCDMessage("376", 2) { } /* * :ngircd.dev.anope.de 376 services.anope.de :End of MOTD command * * we do nothing here, this function exists only to * avoid the "unknown message from server" message. * */ bool Run(MessageSource &source, const std::vector ¶ms) anope_override { return true; } }; struct IRCDMessageChaninfo : IRCDMessage { IRCDMessageChaninfo() : IRCDMessage("CHANINFO", 2) { SetFlag(IRCDMESSAGE_SOFT_LIMIT); SetFlag(IRCDMESSAGE_REQUIRE_SERVER); } /* * CHANINFO is used by servers to inform each other about a channel: its * modes, channel key, user limits and its topic. The parameter combination * and is optional, as well as the parameter, so that * there are three possible forms of this command: * * CHANINFO + * CHANINFO + : * CHANINFO + : * * The parameter must be ignored if a channel has no key (the parameter * doesn't list the "k" channel mode). In this case should * contain "*" because the parameter is required by the CHANINFO syntax * and therefore can't be omitted. The parameter must be ignored when * a channel has no user limit (the parameter doesn't list the "l" * channel mode). In this case should be "0". */ bool Run(MessageSource &source, const std::vector ¶ms) anope_override { Channel *c = findchan(params[0]); if (!c) c = new Channel(params[0]); Anope::string modes = params[1]; if (params.size() == 3) { c->ChangeTopicInternal(source.GetName(), params[2], Anope::CurTime); } else if (params.size() == 5) { for (size_t i = 0, end = params[1].length(); i < end; ++i) { switch(params[1][i]) { case 'k': modes += " " + params[2]; continue; case 'l': modes += " " + params[3]; continue; } } c->ChangeTopicInternal(source.GetName(), params[4], Anope::CurTime); } c->SetModesInternal(source, modes, c->creation_time, true); return true; } }; struct IRCDMessageJoin : IRCDMessage { IRCDMessageJoin() : IRCDMessage("JOIN", 1) { } /* * <@po||ux> DukeP: RFC 2813, 4.2.1: the JOIN command on server-server links * separates the modes ("o") with ASCII 7, not space. And you can't see ASCII 7. * * if a user joins a new channel, the ircd sends \7 */ bool Run(MessageSource &source, const std::vector ¶ms) anope_override { Channel *chan; User *user = source.GetUser(); size_t pos = params[0].find('\7'); Anope::string channel, modes; if (pos != Anope::string::npos) { channel = params[0].substr(0, pos); modes = '+' + params[0].substr(pos+1, params[0].length()) + " " + user->nick; } else { channel = params[0]; } chan = findchan(channel); /* Channel doesn't exist, create it */ if (!chan) { chan = new Channel(channel, Anope::CurTime); chan->SetFlag(CH_SYNCING); } EventReturn MOD_RESULT; FOREACH_RESULT(I_OnPreJoinChannel, OnPreJoinChannel(user, chan)); /* Join the user to the channel */ chan->JoinUser(user); if (!modes.empty()) chan->SetModesInternal(source, modes, chan->creation_time); /* Set the proper modes on the user */ chan_set_correct_modes(user, chan, 1, true); /* Modules may want to allow this user in the channel, check. * If not, CheckKick will kick/ban them, don't call OnJoinChannel after this as the user will have * been destroyed */ if (MOD_RESULT != EVENT_STOP && (!chan->ci || !chan->ci->CheckKick(user))) { FOREACH_MOD(I_OnJoinChannel, OnJoinChannel(user, chan)); } /* Channel is done syncing */ if (chan->HasFlag(CH_SYNCING)) { /* Unset the syncing flag */ chan->UnsetFlag(CH_SYNCING); chan->Sync(); } return true; } }; struct IRCDMessageMode : IRCDMessage { IRCDMessageMode() : IRCDMessage("MODE", 2) { SetFlag(IRCDMESSAGE_SOFT_LIMIT); } /* * Received: :DukeP MODE #anope +b *!*@*.aol.com * Received: :DukeP MODE #anope +h DukeP * params[0] = channel or nick * params[1] = modes * params[n] = parameters */ bool Run(MessageSource &source, const std::vector ¶ms) anope_override { Anope::string modes = params[1]; for (size_t i = 2; i < params.size(); ++i) modes += " " + params[i]; if (ircdproto->IsChannelValid(params[0])) { Channel *c = findchan(params[0]); if (c) c->SetModesInternal(source, modes, c->creation_time); } else { User *u = finduser(params[0]); if (u) u->SetModesInternal("%s", params[1].c_str()); } return true; } }; struct IRCDMessageNick : IRCDMessage { IRCDMessageNick() : IRCDMessage("NICK", 1) { SetFlag(IRCDMESSAGE_SOFT_LIMIT); } /* * NICK - NEW * Received: :dev.anope.de NICK DukeP_ 1 ~DukePyro ip-2-201-236-154.web.vodafone.de 1 + :DukePyrolator * Parameters: : * source = server * params[0] = nick * params[1] = hopcount * params[2] = username/ident * params[3] = host * params[4] = servertoken * params[5] = modes * params[6] = info * * NICK - change * Received: :DukeP_ NICK :test2 * source = oldnick * params[0] = newnick * */ bool Run(MessageSource &source, const std::vector ¶ms) anope_override { if (params.size() == 1) { // we have a nickchange source.GetUser()->ChangeNick(params[0]); } else if (params.size() == 7) { // a new user is connecting to the network User *user = new User(params[0], params[2], params[3], "", "", source.GetServer(), params[6], Anope::CurTime, params[5], ""); if (user && nickserv) nickserv->Validate(user); } else { Log(LOG_DEBUG) << "Received NICK with invalid number of parameters. source = " << source.GetName() << "params[0] = " << params[0] << "params.size() = " << params.size(); } return true; } }; struct IRCDMessageNJoin : IRCDMessage { IRCDMessageNJoin() : IRCDMessage("NJOIN",2) { SetFlag(IRCDMESSAGE_REQUIRE_SERVER); }; /* * RFC 2813, 4.2.2: Njoin Message: * The NJOIN message is used between servers only. * It is used when two servers connect to each other to exchange * the list of channel members for each channel. * * Even though the same function can be performed by using a succession * of JOIN, this message SHOULD be used instead as it is more efficient. * * Received: :dev.anope.de NJOIN #test :DukeP2,@DukeP,%test,+test2 */ bool Run(MessageSource &source, const std::vector ¶ms) anope_override { Channel *c = findchan(params[0]); commasepstream sep(params[1]); Anope::string buf; if (!c) { c = new Channel(params[0], Anope::CurTime); c->SetFlag(CH_SYNCING); } while (sep.GetToken(buf)) { std::list Status; char ch; /* Get prefixes from the nick */ while ((ch = ModeManager::GetStatusChar(buf[0]))) { buf.erase(buf.begin()); ChannelMode *cm = ModeManager::FindChannelModeByChar(ch); if (!cm) { Log(LOG_DEBUG) << "Received unknown mode prefix " << ch << " in NJOIN string."; continue; } Status.push_back(cm); } User *u = finduser(buf); if (!u) { Log(LOG_DEBUG) << "NJOIN for nonexistant user " << buf << " on " << c->name; continue; } EventReturn MOD_RESULT; FOREACH_RESULT(I_OnPreJoinChannel, OnPreJoinChannel(u, c)); /* Add the user to the Channel */ c->JoinUser(u); /* Update their status internally on the channel * This will enforce secureops etc on the user */ for (std::list::iterator it = Status.begin(), it_end = Status.end(); it != it_end; ++it) c->SetModeInternal(source, *it, buf); /* Now set whatever modes this user is allowed to have on the channel */ chan_set_correct_modes(u, c, 1, true); /* Check to see if modules want the user to join, if they do * check to see if they are allowed to join (CheckKick will kick/ban them) * Don't trigger OnJoinChannel event then as the user will be destroyed */ if (MOD_RESULT != EVENT_STOP && c->ci && c->ci->CheckKick(u)) continue; FOREACH_MOD(I_OnJoinChannel, OnJoinChannel(u, c)); } /* while */ if (c->HasFlag(CH_SYNCING)) { c->UnsetFlag(CH_SYNCING); c->Sync(); } return true; } }; struct IRCDMessagePong : IRCDMessage { IRCDMessagePong() : IRCDMessage("PONG", 0) { SetFlag(IRCDMESSAGE_SOFT_LIMIT); SetFlag(IRCDMESSAGE_REQUIRE_SERVER); } /* * ngIRCd does not send an EOB, so we send a PING immediately * when receiving a new server and then finish sync once we * get a pong back from that server. */ bool Run(MessageSource &source, const std::vector ¶ms) anope_override { if (!source.GetServer()->IsSynced()) source.GetServer()->Sync(false); return true; } }; struct IRCDMessageServer : IRCDMessage { IRCDMessageServer() : IRCDMessage("SERVER", 3) { SetFlag(IRCDMESSAGE_SOFT_LIMIT); } /* * SERVER tolsun.oulu.fi 1 :Experimental server * New server tolsun.oulu.fi introducing itself * and attempting to register. * * RFC 2813 says the server has to send a hopcount * AND a servertoken. Not quite sure what ngIRCd is * sending here. * * params[0] = servername * params[1] = hop count (or servertoken?) * params[2] = server description * * * :tolsun.oulu.fi SERVER csd.bu.edu 5 34 :BU Central Server * Server tolsun.oulu.fi is our uplink for csd.bu.edu * which is 5 hops away. The token "34" will be used * by tolsun.oulu.fi when introducing new users or * services connected to csd.bu.edu. * * params[0] = servername * params[1] = hop count * params[2] = server numeric * params[3] = server description */ bool Run(MessageSource &source, const std::vector ¶ms) anope_override { if (params.size() == 3) { // our uplink is introducing itself new Server(Me, params[0], 1, params[2], ""); } else { // our uplink is introducing a new server unsigned int hops = params[1].is_pos_number_only() ? convertTo(params[1]) : 0; new Server(source.GetServer(), params[0], hops, params[2], params[3]); } /* * ngIRCd does not send an EOB, so we send a PING immediately * when receiving a new server and then finish sync once we * get a pong back from that server. */ ircdproto->SendPing(Config->ServerName, params[0]); return true; } }; struct IRCDMessageTopic : IRCDMessage { IRCDMessageTopic() : IRCDMessage("TOPIC", 2) { SetFlag(IRCDMESSAGE_SOFT_LIMIT); } // Received: :DukeP TOPIC #anope :test bool Run(MessageSource &source, const std::vector ¶ms) anope_override { Channel *c = findchan(params[0]); if (!c) { Log(LOG_DEBUG) << "TOPIC for nonexistant channel " << params[0]; return true; } c->ChangeTopicInternal(source.GetName(), params[1], Anope::CurTime); return true; } }; class ProtongIRCd : public Module { ngIRCdProto ircd_proto; /* Core message handlers */ CoreIRCDMessageCapab core_message_capab; CoreIRCDMessageError core_message_error; CoreIRCDMessageKick core_message_kick; CoreIRCDMessageKill core_message_kill; CoreIRCDMessageMOTD core_message_motd; CoreIRCDMessagePart core_message_part; CoreIRCDMessagePing core_message_ping; CoreIRCDMessagePrivmsg core_message_privmsg; CoreIRCDMessageQuit core_message_quit; CoreIRCDMessageSQuit core_message_squit; CoreIRCDMessageStats core_message_stats; CoreIRCDMessageTime core_message_time; CoreIRCDMessageVersion core_message_version; /* Our message handlers */ IRCDMessage005 message_005; IRCDMessage376 message_376; IRCDMessageChaninfo message_chaninfo; IRCDMessageJoin message_join; IRCDMessageMode message_mode; IRCDMessageNick message_nick; IRCDMessageNJoin message_njoin; IRCDMessagePong message_pong; IRCDMessageServer message_server; IRCDMessageTopic message_topic; void AddModes() { /* Add user modes */ ModeManager::AddUserMode(new UserMode(UMODE_NOCTCP, 'b')); ModeManager::AddUserMode(new UserMode(UMODE_BOT, 'B')); ModeManager::AddUserMode(new UserMode(UMODE_COMMONCHANS, 'C')); ModeManager::AddUserMode(new UserMode(UMODE_INVIS, 'i')); ModeManager::AddUserMode(new UserMode(UMODE_OPER, 'o')); ModeManager::AddUserMode(new UserMode(UMODE_PROTECTED, 'q')); ModeManager::AddUserMode(new UserMode(UMODE_RESTRICTED, 'r')); ModeManager::AddUserMode(new UserMode(UMODE_REGISTERED, 'R')); ModeManager::AddUserMode(new UserMode(UMODE_SNOMASK, 's')); ModeManager::AddUserMode(new UserMode(UMODE_WALLOPS, 'w')); ModeManager::AddUserMode(new UserMode(UMODE_CLOAK, 'x')); /* Add modes for ban, exception, and invite lists */ ModeManager::AddChannelMode(new ChannelModeList(CMODE_BAN, 'b')); ModeManager::AddChannelMode(new ChannelModeList(CMODE_EXCEPT, 'e')); ModeManager::AddChannelMode(new ChannelModeList(CMODE_INVITEOVERRIDE, 'I')); /* Add channel user modes */ ModeManager::AddChannelMode(new ChannelModeStatus(CMODE_VOICE, 'v', '+')); ModeManager::AddChannelMode(new ChannelModeStatus(CMODE_HALFOP, 'h', '%')); ModeManager::AddChannelMode(new ChannelModeStatus(CMODE_OP, 'o', '@')); ModeManager::AddChannelMode(new ChannelModeStatus(CMODE_PROTECT, 'a', '&')); ModeManager::AddChannelMode(new ChannelModeStatus(CMODE_OWNER, 'q','~')); /* Add channel modes */ ModeManager::AddChannelMode(new ChannelMode(CMODE_INVITE, 'i')); ModeManager::AddChannelMode(new ChannelModeKey('k')); ModeManager::AddChannelMode(new ChannelModeParam(CMODE_LIMIT, 'l')); ModeManager::AddChannelMode(new ChannelMode(CMODE_MODERATED, 'm')); ModeManager::AddChannelMode(new ChannelMode(CMODE_REGMODERATED, 'M')); ModeManager::AddChannelMode(new ChannelMode(CMODE_NOEXTERNAL, 'n')); ModeManager::AddChannelMode(new ChannelMode(CMODE_OPERONLY, 'O')); ModeManager::AddChannelMode(new ChannelMode(CMODE_PERM, 'P')); ModeManager::AddChannelMode(new ChannelMode(CMODE_NOKICK, 'Q')); ModeManager::AddChannelMode(new ChannelModeRegistered('r')); ModeManager::AddChannelMode(new ChannelMode(CMODE_REGISTEREDONLY, 'R')); ModeManager::AddChannelMode(new ChannelMode(CMODE_SECRET, 's')); ModeManager::AddChannelMode(new ChannelMode(CMODE_TOPIC, 't')); ModeManager::AddChannelMode(new ChannelMode(CMODE_NOINVITE, 'V')); ModeManager::AddChannelMode(new ChannelMode(CMODE_SSL, 'z')); } public: ProtongIRCd(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, PROTOCOL) { this->SetAuthor("Anope"); Capab.insert("QS"); this->AddModes(); Implementation i[] = { I_OnUserNickChange }; ModuleManager::Attach(i, this, sizeof(i) / sizeof(Implementation)); } void OnUserNickChange(User *u, const Anope::string &) anope_override { u->RemoveModeInternal(ModeManager::FindUserModeByName(UMODE_REGISTERED)); } }; MODULE_INIT(ProtongIRCd)