modules/protocol/ratbox.C

/*
 * Copyright © 2003-2004 E. Will et al.
 * Copyright © 2005-2006 Atheme Development Group
 * Rights to this code are documented in doc/pod/license.pod.
 *
 * This file contains protocol support for ratbox-based ircd.
 *
 * $Id: ratbox.C,v 1.1 2007-07-19 08:24:55 pippijn Exp $
 */

#include "atheme.h"
#include <account/myuser.h>
#include "uplink.h"
#include "pmodule.h"
#include "protocol/ratbox.h"

static char const rcsid[] = "$Id";

struct ratbox_listeners : callback::has_listeners
{
};

ratbox_listeners listeners;

DECLARE_MODULE_V1 ("protocol/ratbox", true, _modinit, NULL, rcsid, "The Ermyth Team <http://ermyth.schmorp.de>");

/* *INDENT-OFF* */

ircd_t Ratbox = {
        "Ratbox (1.0 or later)",        /* IRCd name */
        "$$",                           /* TLD Prefix, used by Global. */
        true,                           /* Whether or not we use IRCNet/TS6 UID */
        false,                          /* Whether or not we use RCOMMAND */
        false,                          /* Whether or not we support channel owners. */
        false,                          /* Whether or not we support channel protection. */
        false,                          /* Whether or not we support halfops. */
        false,                          /* Whether or not we use P10 */
        false,                          /* Whether or not we use vHosts. */
        0,                              /* Oper-only cmodes */
        0,                              /* Integer flag for owner channel flag. */
        0,                              /* Integer flag for protect channel flag. */
        0,                              /* Integer flag for halfops. */
        "+",                            /* Mode we set for owner. */
        "+",                            /* Mode we set for protect. */
        "+",                            /* Mode we set for halfops. */
        PROTOCOL_RATBOX,                /* Protocol type */
        0,                              /* Permanent cmodes */
        "beI",                          /* Ban-like cmodes */
        'e',                            /* Except mchar */
        'I',                            /* Invex mchar */
        IRCD_CIDR_BANS                  /* Flags */
};

cmode_t ratbox_mode_list[] = {
  { 'i', CMODE_INVITE },
  { 'm', CMODE_MOD    },
  { 'n', CMODE_NOEXT  },
  { 'p', CMODE_PRIV   },
  { 's', CMODE_SEC    },
  { 't', CMODE_TOPIC  },
  { '\0', 0 }
};

extmode ratbox_ignore_mode_list[] = {
  { '\0', 0 }
};

cmode_t ratbox_status_mode_list[] = {
  { 'o', CMODE_OP    },
  { 'v', CMODE_VOICE },
  { '\0', 0 }
};

cmode_t ratbox_prefix_mode_list[] = {
  { '@', CMODE_OP    },
  { '+', CMODE_VOICE },
  { '\0', 0 }
};

static bool use_rserv_support = false;
static bool use_tb = false;
static bool use_rsfnc = false;

static void server_eob(server_t *s);

static char ts6sid[3 + 1] = "";

/* *INDENT-ON* */

/* login to our uplink */
static unsigned int
ratbox_server_login (void)
{
  int ret = 1;

  if (!me.numeric)
    {
      ircd->uses_uid = false;
      ret = sts ("PASS %s :TS", curr_uplink->pass);
    }
  else if (strlen (me.numeric) == 3 && isdigit (*me.numeric))
    {
      ircd->uses_uid = true;
      ret = sts ("PASS %s TS 6 :%s", curr_uplink->pass, me.numeric);
    }
  else
    {
      slog (LG_ERROR, "Invalid numeric (SID) %s", me.numeric);
    }
  if (ret == 1)
    return 1;

  me.bursting = true;

  sts ("CAPAB :QS EX IE KLN UNKLN ENCAP TB SERVICES");
  sts ("SERVER %s 1 :%s", me.name, me.desc);
  sts ("SVINFO %d 3 0 :%ld", ircd->uses_uid ? 6 : 5, NOW);

  return 0;
}

/* introduce a client */
static void
ratbox_introduce_nick (user_t *u)
{
  if (ircd->uses_uid)
    sts (":%s UID %s 1 %ld +%s%s%s %s %s 0 %s :%s", me.numeric, u->nick, u->ts, "io", chansvs.fantasy ? "" : "D", use_rserv_support ? "S" : "", u->user, u->host, u->uid, u->gecos);
  else
    sts ("NICK %s 1 %ld +%s%s%s %s %s %s :%s", u->nick, u->ts, "io", chansvs.fantasy ? "" : "D", use_rserv_support ? "S" : "", u->user, u->host, me.name, u->gecos);
}

/* invite a user to a channel */
static void
ratbox_invite_sts (user_t *sender, user_t *target, channel_t *channel)
{
  /* some older TSora ircds require the sender to be
   * on the channel, but hyb7/ratbox don't
   * let's just assume it's not necessary -- jilles */
  sts (":%s INVITE %s %s", CLIENT_NAME (sender), CLIENT_NAME (target), channel->name);
}

static void
ratbox_quit_sts (user_t *u, const char *reason)
{
  if (!me.connected)
    return;

  sts (":%s QUIT :%s", CLIENT_NAME (u), reason);
}

/* WALLOPS wrapper */
static void
ratbox_wallops_sts (const char *text)
{
  sts (":%s WALLOPS :%s", ME, text);
}

/* join a channel */
static void
ratbox_join_sts (channel_t *c, user_t *u, bool isnew, char *modes)
{
  if (isnew)
    sts (":%s SJOIN %ld %s %s :@%s", ME, c->ts, c->name, modes, CLIENT_NAME (u));
  else
    sts (":%s SJOIN %ld %s + :@%s", ME, c->ts, c->name, CLIENT_NAME (u));
}

static void
ratbox_chan_lowerts (channel_t *c, user_t *u)
{
  slog (LG_DEBUG, "ratbox_chan_lowerts(): lowering TS for %s to %ld", c->name, (long) c->ts);
  sts (":%s SJOIN %ld %s %s :@%s", ME, c->ts, c->name, channel_modes (c, true), CLIENT_NAME (u));
  if (ircd->uses_uid)
    chanban_clear (c);
}

/* kicks a user from a channel */
static void
ratbox_kick (char *from, char *channel, char *to, char *reason)
{
  channel_t *chan = channel_find (channel);
  user_t *user = user_find (to);
  user_t *from_p = user_find (from);

  if (!chan || !user)
    return;

  if (chan->ts != 0 || chanuser_find (chan, from_p))
    sts (":%s KICK %s %s :%s", CLIENT_NAME (from_p), channel, CLIENT_NAME (user), reason);
  else
    sts (":%s KICK %s %s :%s", ME, channel, CLIENT_NAME (user), reason);

  chanuser_delete (chan, user);
}

/* PRIVMSG wrapper */
static void
ratbox_msg (const char *from, const char *target, const char *fmt, ...)
{
  va_list ap;
  char buf[BUFSIZE];
  user_t *u = user_find (from);
  user_t *t = user_find (target);

  if (!u)
    return;

  va_start (ap, fmt);
  vsnprintf (buf, BUFSIZE, fmt, ap);
  va_end (ap);

  /* If this is to a channel, it's the snoop channel so chanserv
   * is on it -- jilles
   *
   * Well, now it's operserv, but yes it's safe to assume that
   * the source would be able to send to whatever target it is 
   * sending to. --nenolod
   */
  sts (":%s PRIVMSG %s :%s", CLIENT_NAME (u), t ? CLIENT_NAME (t) : target, buf);
}

/* NOTICE wrapper */
static void
ratbox_notice_user_sts (user_t *from, user_t *target, const char *text)
{
  sts (":%s NOTICE %s :%s", from ? CLIENT_NAME (from) : ME, CLIENT_NAME (target), text);
}

static void
ratbox_notice_global_sts (user_t *from, const char *mask, const char *text)
{
  node_t *n;
  tld_t *tld;

  if (!strcmp (mask, "*"))
    {
      LIST_FOREACH (n, tldlist.head)
      {
        tld = static_cast<tld_t *> (n->data);
        sts (":%s NOTICE %s*%s :%s", from ? CLIENT_NAME (from) : ME, ircd->tldprefix, tld->name, text);
      }
    }
  else
    sts (":%s NOTICE %s%s :%s", from ? CLIENT_NAME (from) : ME, ircd->tldprefix, mask, text);
}

static void
ratbox_notice_channel_sts (user_t *from, channel_t *target, const char *text)
{
  if (from == NULL || chanuser_find (target, from))
    sts (":%s NOTICE %s :%s", from ? CLIENT_NAME (from) : ME, target->name, text);
  else
    /* not on channel, let's send it from the server
     * hyb6 won't accept this, oh well, they'll have to
     * enable join_chans -- jilles */
    sts (":%s NOTICE %s :[%s:%s] %s", ME, target->name, from->nick, target->name, text);
}

static void
ratbox_wallchops (user_t *sender, channel_t *channel, const char *message)
{
  if (chanuser_find (channel, sender))
    sts (":%s NOTICE @%s :%s", CLIENT_NAME (sender), channel->name, message);
  else                          /* do not join for this, everyone would see -- jilles */
    generic_wallchops (sender, channel, message);
}

/* numeric wrapper */
static void
ratbox_numeric_sts (char *from, int numeric, char *target, char *fmt, ...)
{
  va_list ap;
  char buf[BUFSIZE];
  user_t *t = user_find (target);

  va_start (ap, fmt);
  vsnprintf (buf, BUFSIZE, fmt, ap);
  va_end (ap);

  sts (":%s %d %s %s", ME, numeric, CLIENT_NAME (t), buf);
}

/* KILL wrapper */
static void
ratbox_skill (char *from, char *nick, char *fmt, ...)
{
  va_list ap;
  char buf[BUFSIZE];
  user_t *killer = user_find (from);
  user_t *victim = user_find (nick);

  va_start (ap, fmt);
  vsnprintf (buf, BUFSIZE, fmt, ap);
  va_end (ap);

  sts (":%s KILL %s :%s!%s!%s (%s)", killer ? CLIENT_NAME (killer) : ME, victim ? CLIENT_NAME (victim) : nick, from, from, from, buf);
}

/* PART wrapper */
static void
ratbox_part_sts (channel_t *c, user_t *u)
{
  sts (":%s PART %s", CLIENT_NAME (u), c->name);
}

/* server-to-server KLINE wrapper */
static void
ratbox_kline_sts (char *server, char *user, char *host, long duration, char *reason)
{
  if (!me.connected)
    return;

  sts (":%s KLINE %s %ld %s %s :%s", CLIENT_NAME (opersvs.me->me), server, duration, user, host, reason);
}

/* server-to-server UNKLINE wrapper */
static void
ratbox_unkline_sts (char *server, char *user, char *host)
{
  if (!me.connected)
    return;

  sts (":%s UNKLINE %s %s %s", CLIENT_NAME (opersvs.me->me), server, user, host);
}

/* topic wrapper */
static void
ratbox_topic_sts (channel_t *c, const char *setter, time_t ts, time_t prevts, const char *topic)
{
  int joined = 0;

  if (!me.connected || !c)
    return;

  /* If possible, try to use TB
   * Note that because TOPIC does not contain topicTS, it may be
   * off a few seconds on other servers, hence the 60 seconds here.
   * -- jilles */
  if (use_tb && *topic != '\0')
    {
      /* Restoring old topic */
      if (ts < prevts || prevts == 0)
        {
          if (prevts != 0 && ts + 60 > prevts)
            ts = prevts - 60;
          sts (":%s TB %s %ld %s :%s", ME, c->name, ts, setter, topic);
          c->topicts = ts;
          return;
        }
      /* Tweaking a topic */
      else if (ts == prevts)
        {
          ts -= 60;
          sts (":%s TB %s %ld %s :%s", ME, c->name, ts, setter, topic);
          c->topicts = ts;
          return;
        }
    }
  /* We have to be on channel to change topic.
   * We cannot nicely change topic from the server:
   * :server.name TOPIC doesn't propagate and TB requires
   * us to specify an older topicts.
   * -- jilles
   */
  if (!chanuser_find (c, chansvs.me->me))
    {
      sts (":%s SJOIN %ld %s + :@%s", ME, c->ts, c->name, CLIENT_NAME (chansvs.me->me));
      joined = 1;
    }
  sts (":%s TOPIC %s :%s", CLIENT_NAME (chansvs.me->me), c->name, topic);
  if (joined)
    sts (":%s PART %s :Topic set", CLIENT_NAME (chansvs.me->me), c->name);
  c->topicts = NOW;
}

/* mode wrapper */
static void
ratbox_mode_sts (char *sender, channel_t *target, char *modes)
{
  user_t *u = user_find (sender);

  if (!me.connected || !u)
    return;

  if (ircd->uses_uid)
    sts (":%s TMODE %ld %s %s", CLIENT_NAME (u), target->ts, target->name, modes);
  else
    sts (":%s MODE %s %s", CLIENT_NAME (u), target->name, modes);
}

/* ping wrapper */
static void
ratbox_ping_sts (void)
{
  if (!me.connected)
    return;

  sts ("PING :%s", me.name);
}

/* protocol-specific stuff to do on login */
static void
ratbox_on_login (char *origin, char *user, char *wantedhost)
{
  user_t *u = user_find (origin);

  if (!me.connected || !use_rserv_support || !u)
    return;

  sts (":%s ENCAP * SU %s %s", ME, CLIENT_NAME (u), user);
}

/* protocol-specific stuff to do on login */
static bool
ratbox_on_logout (char *origin, char *user, char *wantedhost)
{
  user_t *u = user_find (origin);

  if (!me.connected || !use_rserv_support || !u)
    return false;

  sts (":%s ENCAP * SU %s", ME, CLIENT_NAME (u));
  return false;
}

static void
ratbox_jupe (const char *server, const char *reason)
{
  if (!me.connected)
    return;

  server_delete (server);
  sts (":%s SQUIT %s :%s", CLIENT_NAME (opersvs.me->me), server, reason);
  sts (":%s SERVER %s 2 :(H) %s", me.name, server, reason);
}

static void
ratbox_fnc_sts (user_t *source, user_t *u, char *newnick, int type)
{
  if (use_rsfnc)
    /* XXX assumes whole net has it -- jilles */
    sts (":%s ENCAP %s RSFNC %s %s %lu %lu", ME, u->server->name, CLIENT_NAME (u), newnick, (unsigned long) (NOW - 60), (unsigned long) u->ts);
  else
    generic_fnc_sts (source, u, newnick, type);
}

static void
ratbox_holdnick_sts (user_t *source, int duration, const char *nick, myuser_t *account)
{
  if (duration == 0)
    return;                     /* can't do this safely */
  sts (":%s ENCAP * RESV %d %s 0 :Reserved by %s for nickname owner (%s)", CLIENT_NAME (source), duration > 300 ? 300 : duration, nick, source->nick, account != NULL ? account->name : nick);
}

static void
m_topic (sourceinfo_t *si, int parc, char *parv[])
{
  channel_t *c = channel_find (parv[0]);

  if (c == NULL)
    return;

  handle_topic_from (si, c, si->su->nick, NOW, parv[1]);
}

static void
m_tb (sourceinfo_t *si, int parc, char *parv[])
{
  channel_t *c = channel_find (parv[0]);
  time_t ts = atol (parv[1]);

  if (c == NULL)
    return;

  if (c->topic != NULL && c->topicts <= ts)
    {
      slog (LG_DEBUG, "m_tb(): ignoring newer topic on %s", c->name);
      return;
    }

  handle_topic_from (si, c, parc > 3 ? parv[2] : si->s->name, ts, parv[parc - 1]);
}

static void
m_ping (sourceinfo_t *si, int parc, char *parv[])
{
  /* reply to PING's */
  sts (":%s PONG %s %s", ME, me.name, parv[0]);
}

static void
m_pong (sourceinfo_t *si, int parc, char *parv[])
{
  server_t *s;

  /* someone replied to our PING */
  if (!parv[0])
    return;
  s = server_find (parv[0]);
  if (s == NULL)
    return;
  handle_eob (s);

  if (irccasecmp (me.actual, parv[0]))
    return;

  me.uplinkpong = NOW;

  /* -> :test.projectxero.net PONG test.projectxero.net :shrike.malkier.net */
  if (me.bursting)
    {
#ifdef HAVE_GETTIMEOFDAY
      e_time (burstime, &burstime);

      slog (LG_INFO, "m_pong(): finished synching with uplink (%d %s)", (tv2ms (&burstime) > 1000) ? (tv2ms (&burstime) / 1000) : tv2ms (&burstime), (tv2ms (&burstime) > 1000) ? "s" : "ms");

      wallops ("Finished synching to network in %d %s.", (tv2ms (&burstime) > 1000) ? (tv2ms (&burstime) / 1000) : tv2ms (&burstime), (tv2ms (&burstime) > 1000) ? "s" : "ms");
#else
      slog (LG_INFO, "m_pong(): finished synching with uplink");
      wallops ("Finished synching to network.");
#endif

      me.bursting = false;
    }
}

static void
m_privmsg (sourceinfo_t *si, int parc, char *parv[])
{
  if (parc != 2)
    return;

  handle_message (si, parv[0], false, parv[1]);
}

static void
m_notice (sourceinfo_t *si, int parc, char *parv[])
{
  if (parc != 2)
    return;

  handle_message (si, parv[0], true, parv[1]);
}

static void
m_sjoin (sourceinfo_t *si, int parc, char *parv[])
{
  /* -> :proteus.malkier.net SJOIN 1073516550 #shrike +tn :@sycobuny @+rakaur */

  channel_t *c;
  bool keep_new_modes = true;
  unsigned int userc;
  char *userv[256];
  unsigned int i;
  time_t ts;
  char *p;

  /* :origin SJOIN ts chan modestr [key or limits] :users */
  c = channel_find (parv[1]);
  ts = atol (parv[0]);

  if (!c)
    {
      slog (LG_DEBUG, "m_sjoin(): new channel: %s", parv[1]);
      c = channel_add (parv[1], ts, si->s);
    }

  if (ts == 0 || c->ts == 0)
    {
      if (c->ts != 0)
        slog (LG_INFO, "m_sjoin(): server %s changing TS on %s from %ld to 0", si->s->name, c->name, (long) c->ts);
      c->ts = 0;
      hook_call_event ("channel_tschange", c);
    }
  else if (ts < c->ts)
    {
      chanuser_t *cu;
      node_t *n;

      /* the TS changed.  a TS change requires the following things
       * to be done to the channel:  reset all modes to nothing, remove
       * all status modes on known users on the channel (including ours),
       * and set the new TS.
       *
       * if the source does TS6, also remove all bans
       * note that JOIN does not do this
       */

      clear_simple_modes (c);
      if (si->s->sid != NULL)
        chanban_clear (c);

      LIST_FOREACH (n, c->members.head)
      {
        cu = (chanuser_t *) n->data;
        if (cu->user->server == me.me)
          {
            /* it's a service, reop */
            sts (":%s PART %s :Reop", CLIENT_NAME (cu->user), c->name);
            sts (":%s SJOIN %ld %s + :@%s", ME, ts, c->name, CLIENT_NAME (cu->user));
            cu->modes = CMODE_OP;
          }
        else
          cu->modes = 0;
      }

      slog (LG_DEBUG, "m_sjoin(): TS changed for %s (%ld -> %ld)", c->name, c->ts, ts);

      c->ts = ts;
      hook_call_event ("channel_tschange", c);
    }
  else if (ts > c->ts)
    keep_new_modes = false;

  if (keep_new_modes)
    channel_mode (NULL, c, parc - 3, parv + 2);

  userc = sjtoken (parv[parc - 1], ' ', userv);

  if (keep_new_modes)
    for (i = 0; i < userc; i++)
      chanuser_add (c, userv[i]);
  else
    for (i = 0; i < userc; i++)
      {
        p = userv[i];
        while (*p == '@' || *p == '%' || *p == '+')
          p++;
        /* XXX for TS5 we should mark them deopped
         * if they were opped and drop modes from them
         * -- jilles */
        chanuser_add (c, p);
      }

  if (c->nummembers == 0 && !(c->modes & ircd->perm_mode))
    channel_delete (c);
}

static void
m_join (sourceinfo_t *si, int parc, char *parv[])
{
  /* -> :1JJAAAAAB JOIN 1127474195 #test +tn */
  bool keep_new_modes = true;
  node_t *n, *tn;
  channel_t *c;
  chanuser_t *cu;
  time_t ts;

  /* JOIN 0 is really a part from all channels */
  /* be sure to allow joins to TS 0 channels -- jilles */
  if (parv[0][0] == '0' && parc <= 2)
    {
      LIST_FOREACH_SAFE (n, tn, si->su->channels.head)
      {
        cu = (chanuser_t *) n->data;
        chanuser_delete (cu->chan, si->su);
      }
      return;
    }

  /* :user JOIN ts chan modestr [key or limits] */
  c = channel_find (parv[1]);
  ts = atol (parv[0]);

  if (!c)
    {
      slog (LG_DEBUG, "m_join(): new channel: %s", parv[1]);
      c = channel_add (parv[1], ts, si->su->server);
    }

  if (ts == 0 || c->ts == 0)
    {
      if (c->ts != 0)
        slog (LG_INFO, "m_join(): server %s changing TS on %s from %ld to 0", si->su->server->name, c->name, (long) c->ts);
      c->ts = 0;
      hook_call_event ("channel_tschange", c);
    }
  else if (ts < c->ts)
    {
      /* the TS changed.  a TS change requires the following things
       * to be done to the channel:  reset all modes to nothing, remove
       * all status modes on known users on the channel (including ours),
       * and set the new TS.
       */
      clear_simple_modes (c);

      LIST_FOREACH (n, c->members.head)
      {
        cu = (chanuser_t *) n->data;
        if (cu->user->server == me.me)
          {
            /* it's a service, reop */
            sts (":%s PART %s :Reop", CLIENT_NAME (cu->user), c->name);
            sts (":%s SJOIN %ld %s + :@%s", ME, ts, c->name, CLIENT_NAME (cu->user));
            cu->modes = CMODE_OP;
          }
        else
          cu->modes = 0;
      }
      slog (LG_DEBUG, "m_join(): TS changed for %s (%ld -> %ld)", c->name, c->ts, ts);
      c->ts = ts;
      hook_call_event ("channel_tschange", c);
    }
  else if (ts > c->ts)
    keep_new_modes = false;

  if (keep_new_modes)
    channel_mode (NULL, c, parc - 2, parv + 2);

  chanuser_add (c, CLIENT_NAME (si->su));
}

static void
m_bmask (sourceinfo_t *si, int parc, char *parv[])
{
  unsigned int ac, i;
  char *av[256];
  channel_t *c = channel_find (parv[1]);
  int type;

  /* :1JJ BMASK 1127474361 #services b :*!*@*evil* *!*eviluser1@* */
  if (!c)
    {
      slog (LG_DEBUG, "m_bmask(): got bmask for unknown channel");
      return;
    }

  if (atol (parv[0]) > c->ts)
    return;

  type = *parv[2];
  if (!strchr (ircd->ban_like_modes, type))
    {
      slog (LG_DEBUG, "m_bmask(): got unknown type '%c'", type);
      return;
    }

  ac = sjtoken (parv[parc - 1], ' ', av);

  for (i = 0; i < ac; i++)
    chanban_add (c, av[i], type);
}

static void
m_part (sourceinfo_t *si, int parc, char *parv[])
{
  int chanc;
  char *chanv[256];
  int i;

  chanc = sjtoken (parv[0], ',', chanv);
  for (i = 0; i < chanc; i++)
    {
      slog (LG_DEBUG, "m_part(): user left channel: %s -> %s", si->su->nick, chanv[i]);

      chanuser_delete (channel_find (chanv[i]), si->su);
    }
}

static void
m_nick (sourceinfo_t *si, int parc, char *parv[])
{
  server_t *s;
  user_t *u;

  /* got the right number of args for an introduction? */
  if (parc == 8)
    {
      s = server_find (parv[6]);
      if (!s)
        {
          slog (LG_DEBUG, "m_nick(): new user on nonexistant server: %s", parv[6]);
          return;
        }

      slog (LG_DEBUG, "m_nick(): new user on `%s': %s", s->name, parv[0]);

      u = user_add (parv[0], parv[4], parv[5], NULL, NULL, NULL, parv[7], s, atoi (parv[2]));

      user_mode (u, parv[3]);

      /* If server is not yet EOB we will do this later.
       * This avoids useless "please identify" -- jilles */
      if (s->flags & SF_EOB)
        handle_nickchange (user_find (parv[0]));
    }

  /* if it's only 2 then it's a nickname change */
  else if (parc == 2)
    {
      if (!si->su)
        {
          slog (LG_DEBUG, "m_nick(): server trying to change nick: %s", si->s != NULL ? si->s->name : "<none>");
          return;
        }

      slog (LG_DEBUG, "m_nick(): nickname change from `%s': %s", si->su->nick, parv[0]);

      user_changenick (si->su, parv[0], atoi (parv[1]));

      /* It could happen that our PING arrived late and the
       * server didn't acknowledge EOB yet even though it is
       * EOB; don't send double notices in that case -- jilles */
      if (si->su->server->flags & SF_EOB)
        handle_nickchange (si->su);
    }
  else
    {
      int i;
      slog (LG_DEBUG, "m_nick(): got NICK with wrong number of params");

      for (i = 0; i < parc; i++)
        slog (LG_DEBUG, "m_nick():   parv[%d] = %s", i, parv[i]);
    }
}

static void
m_uid (sourceinfo_t *si, int parc, char *parv[])
{
  server_t *s;
  user_t *u;

  /* got the right number of args for an introduction? */
  if (parc == 9)
    {
      s = si->s;
      slog (LG_DEBUG, "m_uid(): new user on `%s': %s", s->name, parv[0]);

      u = user_add (parv[0], parv[4], parv[5], NULL, parv[6], parv[7], parv[8], s, atoi (parv[2]));

      user_mode (u, parv[3]);

      /* If server is not yet EOB we will do this later.
       * This avoids useless "please identify" -- jilles
       */
      if (s->flags & SF_EOB)
        handle_nickchange (user_find (parv[0]));
    }
  else
    {
      int i;
      slog (LG_DEBUG, "m_uid(): got UID with wrong number of params");

      for (i = 0; i < parc; i++)
        slog (LG_DEBUG, "m_uid():   parv[%d] = %s", i, parv[i]);
    }
}

static void
m_quit (sourceinfo_t *si, int parc, char *parv[])
{
  slog (LG_DEBUG, "m_quit(): user leaving: %s", si->su->nick);

  /* user_delete() takes care of removing channels and so forth */
  user_delete (si->su);
}

static void
m_mode (sourceinfo_t *si, int parc, char *parv[])
{
  if (*parv[0] == '#')
    channel_mode (NULL, channel_find (parv[0]), parc - 1, &parv[1]);
  else
    user_mode (user_find (parv[0]), parv[1]);
}

static void
m_tmode (sourceinfo_t *si, int parc, char *parv[])
{
  channel_t *c;

  /* -> :1JJAAAAAB TMODE 1127511579 #new +o 2JJAAAAAB */
  c = channel_find (parv[1]);
  if (c == NULL)
    {
      slog (LG_DEBUG, "m_tmode(): nonexistent channel %s", parv[1]);
      return;
    }

  if (atol (parv[0]) > c->ts)
    return;

  channel_mode (NULL, c, parc - 2, &parv[2]);
}

static void
m_kick (sourceinfo_t *si, int parc, char *parv[])
{
  user_t *u = user_find (parv[1]);
  channel_t *c = channel_find (parv[0]);

  /* -> :rakaur KICK #shrike rintaun :test */
  slog (LG_DEBUG, "m_kick(): user was kicked: %s -> %s", parv[1], parv[0]);

  if (!u)
    {
      slog (LG_DEBUG, "m_kick(): got kick for nonexistant user %s", parv[1]);
      return;
    }

  if (!c)
    {
      slog (LG_DEBUG, "m_kick(): got kick in nonexistant channel: %s", parv[0]);
      return;
    }

  if (!chanuser_find (c, u))
    {
      slog (LG_DEBUG, "m_kick(): got kick for %s not in %s", u->nick, c->name);
      return;
    }

  chanuser_delete (c, u);

  /* if they kicked us, let's rejoin */
  if (is_internal_client (u))
    {
      slog (LG_DEBUG, "m_kick(): %s got kicked from %s; rejoining", u->nick, parv[0]);
      join (parv[0], u->nick);
    }
}

static void
m_kill (sourceinfo_t *si, int parc, char *parv[])
{
  handle_kill (si, parv[0], parc > 1 ? parv[1] : "<No reason given>");
}

static void
m_squit (sourceinfo_t *si, int parc, char *parv[])
{
  slog (LG_DEBUG, "m_squit(): server leaving: %s from %s", parv[0], parv[1]);
  server_delete (parv[0]);
}

static void
m_server (sourceinfo_t *si, int parc, char *parv[])
{
  server_t *s;

  slog (LG_DEBUG, "m_server(): new server: %s", parv[0]);
  s = handle_server (si, parv[0], si->s || !ircd->uses_uid ? NULL : ts6sid, atoi (parv[1]), parv[2]);

  if (s != NULL && s->uplink != me.me)
    {
      /* elicit PONG for EOB detection; pinging uplink is
       * already done elsewhere -- jilles
       */
      sts (":%s PING %s %s", ME, me.name, s->name);
    }
}

static void
m_sid (sourceinfo_t *si, int parc, char *parv[])
{
  /* -> :1JJ SID file. 2 00F :telnet server */
  server_t *s;

  slog (LG_DEBUG, "m_sid(): new server: %s", parv[0]);
  s = handle_server (si, parv[0], parv[2], atoi (parv[1]), parv[3]);

  if (s != NULL && s->uplink != me.me)
    {
      /* elicit PONG for EOB detection; pinging uplink is
       * already done elsewhere -- jilles
       */
      sts (":%s PING %s %s", ME, me.name, s->sid);
    }
}

static void
m_stats (sourceinfo_t *si, int parc, char *parv[])
{
  handle_stats (si->su, parv[0][0]);
}

static void
m_admin (sourceinfo_t *si, int parc, char *parv[])
{
  handle_admin (si->su);
}

static void
m_version (sourceinfo_t *si, int parc, char *parv[])
{
  handle_version (si->su);
}

static void
m_info (sourceinfo_t *si, int parc, char *parv[])
{
  handle_info (si->su);
}

static void
m_whois (sourceinfo_t *si, int parc, char *parv[])
{
  handle_whois (si->su, parv[1]);
}

static void
m_trace (sourceinfo_t *si, int parc, char *parv[])
{
  handle_trace (si->su, parv[0], parc >= 2 ? parv[1] : NULL);
}

static void
m_away (sourceinfo_t *si, int parc, char *parv[])
{
  handle_away (si->su, parc >= 1 ? parv[0] : NULL);
}

static void
m_pass (sourceinfo_t *si, int parc, char *parv[])
{
  /* TS5: PASS mypassword :TS
   * TS6: PASS mypassword TS 6 :sid */
  if (strcmp (curr_uplink->pass, parv[0]))
    {
      slog (LG_INFO, "m_pass(): password mismatch from uplink; aborting");
      runflags |= RF_SHUTDOWN;
    }

  if (ircd->uses_uid && parc > 3 && atoi (parv[2]) >= 6)
    strlcpy (ts6sid, parv[3], sizeof (ts6sid));
  else
    {
      if (ircd->uses_uid)
        {
          slog (LG_INFO, "m_pass(): uplink does not support TS6, falling back to TS5");
          ircd->uses_uid = false;
        }
      ts6sid[0] = '\0';
    }
}

static void
m_error (sourceinfo_t *si, int parc, char *parv[])
{
  slog (LG_INFO, "m_error(): error from server: %s", parv[0]);
}

static void
m_encap (sourceinfo_t *si, int parc, char *parv[])
{
  user_t *u;

  if (match (parv[0], me.name))
    return;
  if (!irccasecmp (parv[1], "LOGIN"))
    {
      /* :jilles ENCAP * LOGIN jilles */
      if (!use_rserv_support)
        return;
      if (parc < 3)
        return;
      u = si->su;
      if (u == NULL)
        return;
      if (u->server->flags & SF_EOB)
        {
          slog (LG_DEBUG, "m_encap(): %s sent ENCAP LOGIN for user %s outside burst", u->server->name, si->su->nick);
          return;
        }
      handle_burstlogin (u, parv[2]);
    }
}

static void
m_capab (sourceinfo_t *si, int parc, char *parv[])
{
  char *p;

  use_rserv_support = false;
  use_tb = false;
  use_rsfnc = false;
  for (p = strtok (parv[0], " "); p != NULL; p = strtok (NULL, " "))
    {
      if (!irccasecmp (p, "SERVICES"))
        {
          slog (LG_DEBUG, "m_capab(): uplink has rserv extensions, enabling support.");
          use_rserv_support = true;
        }
      if (!irccasecmp (p, "TB"))
        {
          slog (LG_DEBUG, "m_capab(): uplink does topic bursting, using if appropriate.");
          use_tb = true;
        }
      if (!irccasecmp (p, "RSFNC"))
        {
          slog (LG_DEBUG, "m_capab(): uplink does RSFNC, assuming whole net has it.");
          use_rsfnc = true;
        }
    }

  /* Now we know whether or not we should enable services support,
   * so burst the clients.
   *       --nenolod
   */
  services_init ();
}

static void
m_motd (sourceinfo_t *si, int parc, char *parv[])
{
  handle_motd (si->su);
}

/* Server ended their burst: warn all their users if necessary -- jilles */
static void
server_eob (server_t *s)
{
  node_t *n;

  LIST_FOREACH (n, s->userlist.head)
  {
    handle_nickchange ((user_t *) n->data);
  }
}

void
_modinit (module_t *m)
{
  /* Symbol relocation voodoo. */
  server_login = &ratbox_server_login;
  introduce_nick = &ratbox_introduce_nick;
  quit_sts = &ratbox_quit_sts;
  wallops_sts = &ratbox_wallops_sts;
  join_sts = &ratbox_join_sts;
  chan_lowerts = &ratbox_chan_lowerts;
  kick = &ratbox_kick;
  msg = &ratbox_msg;
  notice_user_sts = &ratbox_notice_user_sts;
  notice_global_sts = &ratbox_notice_global_sts;
  notice_channel_sts = &ratbox_notice_channel_sts;
  wallchops = &ratbox_wallchops;
  numeric_sts = &ratbox_numeric_sts;
  skill = &ratbox_skill;
  part_sts = &ratbox_part_sts;
  kline_sts = &ratbox_kline_sts;
  unkline_sts = &ratbox_unkline_sts;
  topic_sts = &ratbox_topic_sts;
  mode_sts = &ratbox_mode_sts;
  ping_sts = &ratbox_ping_sts;
  ircd_on_login = &ratbox_on_login;
  ircd_on_logout = &ratbox_on_logout;
  jupe = &ratbox_jupe;
  fnc_sts = &ratbox_fnc_sts;
  invite_sts = &ratbox_invite_sts;
  holdnick_sts = &ratbox_holdnick_sts;

  mode_list = ratbox_mode_list;
  ignore_mode_list = ratbox_ignore_mode_list;
  status_mode_list = ratbox_status_mode_list;
  prefix_mode_list = ratbox_prefix_mode_list;

  ircd = &Ratbox;

  pcommand_add ("PING", m_ping, 1, MSRC_USER | MSRC_SERVER);
  pcommand_add ("PONG", m_pong, 1, MSRC_SERVER);
  pcommand_add ("PRIVMSG", m_privmsg, 2, MSRC_USER);
  pcommand_add ("NOTICE", m_notice, 2, MSRC_UNREG | MSRC_USER | MSRC_SERVER);
  pcommand_add ("SJOIN", m_sjoin, 4, MSRC_SERVER);
  pcommand_add ("PART", m_part, 1, MSRC_USER);
  pcommand_add ("NICK", m_nick, 2, MSRC_USER | MSRC_SERVER);
  pcommand_add ("QUIT", m_quit, 1, MSRC_USER);
  pcommand_add ("MODE", m_mode, 2, MSRC_USER | MSRC_SERVER);
  pcommand_add ("KICK", m_kick, 2, MSRC_USER | MSRC_SERVER);
  pcommand_add ("KILL", m_kill, 1, MSRC_USER | MSRC_SERVER);
  pcommand_add ("SQUIT", m_squit, 1, MSRC_USER | MSRC_SERVER);
  pcommand_add ("SERVER", m_server, 3, MSRC_UNREG | MSRC_SERVER);
  pcommand_add ("STATS", m_stats, 2, MSRC_USER);
  pcommand_add ("ADMIN", m_admin, 1, MSRC_USER);
  pcommand_add ("VERSION", m_version, 1, MSRC_USER);
  pcommand_add ("INFO", m_info, 1, MSRC_USER);
  pcommand_add ("WHOIS", m_whois, 2, MSRC_USER);
  pcommand_add ("TRACE", m_trace, 1, MSRC_USER);
  pcommand_add ("AWAY", m_away, 0, MSRC_USER);
  pcommand_add ("JOIN", m_join, 1, MSRC_USER);
  pcommand_add ("PASS", m_pass, 1, MSRC_UNREG);
  pcommand_add ("ERROR", m_error, 1, MSRC_UNREG | MSRC_SERVER);
  pcommand_add ("TOPIC", m_topic, 2, MSRC_USER);
  pcommand_add ("TB", m_tb, 3, MSRC_SERVER);
  pcommand_add ("ENCAP", m_encap, 2, MSRC_USER | MSRC_SERVER);
  pcommand_add ("CAPAB", m_capab, 1, MSRC_UNREG);
  pcommand_add ("UID", m_uid, 9, MSRC_SERVER);
  pcommand_add ("BMASK", m_bmask, 4, MSRC_SERVER);
  pcommand_add ("TMODE", m_tmode, 3, MSRC_USER | MSRC_SERVER);
  pcommand_add ("SID", m_sid, 4, MSRC_SERVER);
  pcommand_add ("MOTD", m_motd, 1, MSRC_USER);

  hook_add_event ("server_eob");
  hook_add_hook ("server_eob", (void (*)(void *)) server_eob);

  m->mflags = MODTYPE_CORE;

  pmodule_loaded = true;
}

/* vim:cinoptions=>s,e0,n0,f0,{0,}0,^0,=s,ps,t0,c3,+s,(2s,us,)20,*30,gs,hs
 * vim:ts=8
 * vim:sw=8
 * vim:noexpandtab
 */
Revision:	1.2
Committed:	Sat Jul 21 01:29:10 2007 UTC (19 years, 3 months ago) by pippijn
Content type:	text/plain
Branch:	MAIN
Changes since 1.1:	+2 -2 lines
Log Message:	- moved to new documentation system - fixed small build error