ratbox.cpp

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/* Ratbox IRCD functions
 *
 * (C) 2003-2013 Anope Team
 * Contact us at team@anope.org
 *
 * 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"

static Anope::string UplinkSID;

static ServiceReference<IRCDProto> hybrid("IRCDProto", "hybrid");

class RatboxProto : public IRCDProto
{
 public:
        RatboxProto(Module *creator) : IRCDProto(creator, "Ratbox 3.0+")
        {
                DefaultPseudoclientModes = "+oiS";
                CanSNLine = true;
                CanSQLine = true;
                CanSZLine = true;
                RequiresID = true;
                MaxModes = 4;
        }

        void SendGlobalNotice(const BotInfo *bi, const Server *dest, const Anope::string &msg) anope_override { hybrid->SendGlobalNotice(bi, dest, msg); }
        void SendGlobalPrivmsg(const BotInfo *bi, const Server *dest, const Anope::string &msg) anope_override { hybrid->SendGlobalPrivmsg(bi, dest, msg); }
        void SendGlobopsInternal(const BotInfo *source, const Anope::string &buf) anope_override { hybrid->SendGlobopsInternal(source, buf); }
        void SendSQLine(User *u, const XLine *x) anope_override { hybrid->SendSQLine(u, x); }
        void SendSGLine(User *u, const XLine *x) anope_override { hybrid->SendSGLine(u, x); }
        void SendSGLineDel(const XLine *x) anope_override { hybrid->SendSGLineDel(x); }
        void SendAkill(User *u, XLine *x) anope_override { hybrid->SendAkill(u, x); }
        void SendAkillDel(const XLine *x) anope_override { hybrid->SendAkillDel(x); }
        void SendSQLineDel(const XLine *x) anope_override { hybrid->SendSQLineDel(x); }
        void SendJoin(const User *user, Channel *c, const ChannelStatus *status) anope_override { hybrid->SendJoin(user, c, status); }
        void SendServer(const Server *server) anope_override { hybrid->SendServer(server); }
        void SendModeInternal(const BotInfo *bi, const User *u, const Anope::string &buf) anope_override { hybrid->SendModeInternal(bi, u, buf); }
        void SendChannel(Channel *c) anope_override { hybrid->SendChannel(c); }
        void SendTopic(BotInfo *bi, Channel *c) anope_override { hybrid->SendTopic(bi, c); }

        void SendConnect() anope_override
        {
                UplinkSocket::Message() << "PASS " << Config->Uplinks[Anope::CurrentUplink]->password << " TS 6 :" << Me->GetSID();
                /*
                  QS     - Can handle quit storm removal
                  EX     - Can do channel +e exemptions
                  CHW    - Can do channel wall @#
                  IE     - Can do invite exceptions
                  GLN    - Can do GLINE message
                  KNOCK  - supports KNOCK
                  TB     - supports topic burst
                  ENCAP  - supports ENCAP
                */
                UplinkSocket::Message() << "CAPAB :QS EX CHW IE GLN TB ENCAP";
                /* Make myself known to myself in the serverlist */
                SendServer(Me);
                /*
                 * SVINFO
                 *        parv[0] = sender prefix
                 *        parv[1] = TS_CURRENT for the server
                 *        parv[2] = TS_MIN for the server
                 *        parv[3] = server is standalone or connected to non-TS only
                 *        parv[4] = server's idea of UTC time
                 */
                UplinkSocket::Message() << "SVINFO 6 3 0 :" << Anope::CurTime;
        }

        void SendClientIntroduction(const User *u) anope_override
        {
                Anope::string modes = "+" + u->GetModes();
                UplinkSocket::Message(Me) << "UID " << u->nick << " 1 " << u->timestamp << " " << modes << " " << u->GetIdent() << " " << u->host << " 0 " << u->GetUID() << " :" << u->realname;
        }

        void SendLogin(User *u) anope_override
        {
                if (!u->Account())
                        return;

                UplinkSocket::Message(Me) << "ENCAP * SU " << u->GetUID() << " " << u->Account()->display;
        }

        void SendLogout(User *u) anope_override
        {
                UplinkSocket::Message(Me) << "ENCAP * SU " << u->GetUID();
        }
};

struct IRCDMessageEncap : IRCDMessage
{
        IRCDMessageEncap(Module *creator) : IRCDMessage(creator, "ENCAP", 3) { SetFlag(IRCDMESSAGE_REQUIRE_USER); }

        // Debug: Received: :00BAAAAAB ENCAP * LOGIN Adam
        void Run(MessageSource &source, const std::vector<Anope::string> &params) anope_override
        {
                if (params[1] == "LOGIN" || params[1] == "SU")
                {
                        User *u = source.GetUser();

                        NickCore *nc = NickCore::Find(params[2]);
                        if (!nc)
                                return;
                        u->Login(nc);

                        const NickAlias *user_na = NickAlias::Find(u->nick);
                        if (!Config->NoNicknameOwnership && user_na && user_na->nc == nc && user_na->nc->HasExt("UNCONFIRMED") == false)
                                u->SetMode(NickServ, "REGISTERED");
                }
        }
};

struct IRCDMessagePass : IRCDMessage
{
        IRCDMessagePass(Module *creator) : IRCDMessage(creator, "PASS", 4) { SetFlag(IRCDMESSAGE_REQUIRE_SERVER); }

        void Run(MessageSource &source, const std::vector<Anope::string> &params) anope_override
        {
                UplinkSID = params[3];
        }
};

struct IRCDMessageServer : IRCDMessage
{
        IRCDMessageServer(Module *creator) : IRCDMessage(creator, "SERVER", 3) { SetFlag(IRCDMESSAGE_REQUIRE_SERVER); }

        // SERVER hades.arpa 1 :ircd-ratbox test server
        void Run(MessageSource &source, const std::vector<Anope::string> &params) anope_override
        {
                // Servers other then our immediate uplink are introduced via SID
                if (params[1] != "1")
                        return;
                new Server(source.GetServer() == NULL ? Me : source.GetServer(), params[0], 1, params[2], UplinkSID);
                IRCD->SendPing(Config->ServerName, params[0]);
        }
};

struct IRCDMessageTBurst : IRCDMessage
{
        IRCDMessageTBurst(Module *creator) : IRCDMessage(creator, "TB", 3) { SetFlag(IRCDMESSAGE_SOFT_LIMIT); }

        /*
         * params[0] = channel
         * params[1] = ts
         * params[2] = topic OR who set the topic
         * params[3] = topic if params[2] isnt the topic
         */
        void Run(MessageSource &source, const std::vector<Anope::string> &params) anope_override
        {
                time_t topic_time = Anope::string(params[1]).is_pos_number_only() ? convertTo<time_t>(params[1]) : Anope::CurTime;
                Channel *c = Channel::Find(params[0]);

                if (!c)
                        return;

                const Anope::string &setter = params.size() == 4 ? params[2] : "",
                        topic = params.size() == 4 ? params[3] : params[2];

                c->ChangeTopicInternal(setter, topic, topic_time);
        }
};

struct IRCDMessageUID : IRCDMessage
{
        IRCDMessageUID(Module *creator) : IRCDMessage(creator, "UID", 9) { SetFlag(IRCDMESSAGE_REQUIRE_SERVER); }

        // :42X UID Adam 1 1348535644 +aow Adam 192.168.0.5 192.168.0.5 42XAAAAAB :Adam
        void Run(MessageSource &source, const std::vector<Anope::string> &params) anope_override
        {
                /* Source is always the server */
                new User(params[0], params[4], params[5], "", params[6], source.GetServer(), params[8], params[2].is_pos_number_only() ? convertTo<time_t>(params[2]) : 0, params[3], params[7]);
        }
};

class ProtoRatbox : public Module
{
        Module *m_hybrid;

        RatboxProto ircd_proto;

        /* Core message handlers */
        Message::Away message_away;
        Message::Capab message_capab;
        Message::Error message_error;
        Message::Kick message_kick;
        Message::Kill message_kill;
        Message::Mode message_mode;
        Message::MOTD message_motd;
        Message::Part message_part;
        Message::Ping message_ping;
        Message::Privmsg message_privmsg;
        Message::Quit message_quit;
        Message::SQuit message_squit;
        Message::Stats message_stats;
        Message::Time message_time;
        Message::Topic message_topic;
        Message::Version message_version;
        Message::Whois message_whois;

        /* Hybrid message handlers */
        ServiceAlias message_bmask, message_join, message_nick, message_pong, message_sid,
                        message_sjoin, message_tmode;

        /* Our message handlers */
        IRCDMessageEncap message_encap;
        IRCDMessagePass message_pass;
        IRCDMessageServer message_server;
        IRCDMessageTBurst message_tburst;
        IRCDMessageUID message_uid;

        void AddModes()
        {
                /* user modes */
                ModeManager::RemoveUserMode(ModeManager::FindUserModeByName("HIDEOPER"));
                ModeManager::RemoveUserMode(ModeManager::FindUserModeByName("REGPRIV"));

                /* v/h/o/a/q */
                ModeManager::RemoveChannelMode(ModeManager::FindChannelModeByName("HALFOP"));

                /* channel modes */
                ModeManager::RemoveChannelMode(ModeManager::FindChannelModeByName("REGISTERED"));
                ModeManager::RemoveChannelMode(ModeManager::FindChannelModeByName("OPERONLY"));
                ModeManager::RemoveChannelMode(ModeManager::FindChannelModeByName("REGISTEREDONLY"));
                ModeManager::RemoveChannelMode(ModeManager::FindChannelModeByName("SSL"));
        }

 public:
        ProtoRatbox(const Anope::string &modname, const Anope::string &creator) : Module(modname, creator, PROTOCOL),
                ircd_proto(this),
                message_away(this), message_capab(this), message_error(this), message_kick(this), message_kill(this),
                message_mode(this), message_motd(this), message_part(this), message_ping(this), message_privmsg(this),
                message_quit(this), message_squit(this), message_stats(this), message_time(this), message_topic(this),
                message_version(this), message_whois(this),

                message_bmask("IRCDMessage", "ratbox/bmask", "hybrid/bmask"), message_join("IRCDMessage", "ratbox/join", "hybrid/join"),
                message_nick("IRCDMessage", "ratbox/nick", "hybrid/nick"), message_pong("IRCDMessage", "ratbox/pong", "hybrid/pong"),
                message_sid("IRCDMessage", "ratbox/sid", "hybrid/sid"), message_sjoin("IRCDMessage", "ratbox/sjoin", "hybrid/sjoin"),
                message_tmode("IRCDMessage", "ratbox/tmode", "hybrid/tmode"),

                message_encap(this), message_pass(this), message_server(this), message_tburst(this), message_uid(this)
        {
                this->SetAuthor("Anope");

                if (ModuleManager::LoadModule("hybrid", User::Find(creator)) != MOD_ERR_OK)
                        throw ModuleException("Unable to load hybrid");
                m_hybrid = ModuleManager::FindModule("hybrid");
                if (!m_hybrid)
                        throw ModuleException("Unable to find hybrid");
                if (!hybrid)
                        throw ModuleException("No protocol interface for hybrid");

                this->AddModes();
        }

        ~ProtoRatbox()
        {
                ModuleManager::UnloadModule(m_hybrid, NULL);
        }
};

MODULE_INIT(ProtoRatbox)