modules/protocol/nefarious.C

/*
 * Copyright © 2005-2006 William Pitcock, et al.
 * Rights to this code are documented in doc/LICENSE.
 *
 * This file contains protocol support for P10 ircd's.
 * Some sources used: Run's documentation, beware's description,
 * raw data sent by nefarious.
 *
 * $Id: nefarious.c 8223 2007-05-05 12:58:06Z jilles $
 */

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

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

struct nefarious_listeners : callback::has_listeners
{
};

nefarious_listeners listeners;

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

/* *INDENT-OFF* */

ircd_t Nefarious = {
        "Nefarious IRCU 0.4.0 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. */
        true,                           /* Whether or not we support halfops. */
        true,                           /* Whether or not we use P10 */
        true,                           /* Whether or not we use vhosts. */
        CMODE_PERM|CMODE_OPERONLY|CMODE_ADMONLY, /* Oper-only cmodes */
        0,                              /* Integer flag for owner channel flag. */
        0,                              /* Integer flag for protect channel flag. */
        CMODE_HALFOP,                   /* Integer flag for halfops. */
        "+",                            /* Mode we set for owner. */
        "+",                            /* Mode we set for protect. */
        "+",                            /* Mode we set for halfops. */
        PROTOCOL_NEFARIOUS,             /* Protocol type */
        CMODE_PERM,                     /* Permanent cmodes */
        "be",                           /* Ban-like cmodes */
        'e',                            /* Except mchar */
        'e',                            /* Invex mchar (+e also exempts from +i in Nefarious) */
        IRCD_CIDR_BANS                  /* Flags */
};

cmode_t nefarious_mode_list[] = {
  { 'a', CMODE_ADMONLY },
  { 'i', CMODE_INVITE },
  { 'm', CMODE_MOD    },
  { 'n', CMODE_NOEXT  },
  { 'p', CMODE_PRIV   },
  { 'r', CMODE_REGONLY },
  { 's', CMODE_SEC    },
  { 't', CMODE_TOPIC  },
  { 'z', CMODE_PERM   },
  { 'c', CMODE_NOCOLOR },
  { 'C', CMODE_NOCTCP },
  { 'D', CMODE_DELAYED },
  { 'Q', CMODE_NOQUIT },
  { 'N', CMODE_NONOTICE },
  { 'M', CMODE_SOFTMOD },
  { 'C', CMODE_NOCTCP },
  { 'S', CMODE_STRIP },
  { 'T', CMODE_NOAMSG },
  { 'O', CMODE_OPERONLY },
  { 'L', CMODE_SOFTPRIV },
  { 'Z', CMODE_SSLONLY },
  { '\0', 0 }
};

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

cmode_t nefarious_status_mode_list[] = {
  { 'o', CMODE_OP     },
  { 'h', CMODE_HALFOP },
  { 'v', CMODE_VOICE  },
  { '\0', 0 }
};

cmode_t nefarious_prefix_mode_list[] = {
  { '@', CMODE_OP     },
  { '%', CMODE_HALFOP },
  { '+', CMODE_VOICE  },
  { '\0', 0 }
};

static void check_hidehost(user_t *u);

/* *INDENT-ON* */

/* login to our uplink */
static unsigned int
nefarious_server_login (void)
{
  int ret;

  ret = sts ("PASS :%s", curr_uplink->pass);
  if (ret == 1)
    return 1;

  me.bursting = true;

  /* SERVER irc.undernet.org 1 933022556 947908144 J10 AA]]] :[127.0.0.1] A Undernet Server */
  sts ("SERVER %s 1 %ld %ld J10 %s]]] +s :%s", me.name, me.start, NOW, me.numeric, me.desc);

  services_init ();

  sts ("%s EB", me.numeric);

  return 0;
}

/* introduce a client */
static void
nefarious_introduce_nick (user_t *u)
{
  sts ("%s N %s 1 %ld %s %s +%s%sk ]]]]]] %s :%s", me.numeric, u->nick, u->ts, u->user, u->host, "io", chansvs.fantasy ? "" : "d", u->uid, u->gecos);
}

/* invite a user to a channel */
static void
nefarious_invite_sts (user_t *sender, user_t *target, channel_t *channel)
{
  /* target is a nick, weird eh? -- jilles */
  sts ("%s I %s %s", sender->uid, target->nick, channel->name);
}

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

  sts ("%s Q :%s", u->uid, reason);
}

/* WALLOPS wrapper */
static void
nefarious_wallops_sts (const char *text)
{
  sts ("%s WA :%s", me.numeric, text);
}

/* join a channel */
static void
nefarious_join_sts (channel_t *c, user_t *u, bool isnew, char *modes)
{
  /* If the channel doesn't exist, we need to create it. */
  if (isnew)
    {
      sts ("%s C %s %ld", u->uid, c->name, c->ts);
      if (modes[0] && modes[1])
        sts ("%s M %s %s", u->uid, c->name, modes);
    }
  else
    {
      sts ("%s J %s %ld", u->uid, c->name, c->ts);
      sts ("%s M %s +o %s", me.numeric, c->name, u->uid);
    }
}

/* kicks a user from a channel */
static void
nefarious_kick (char *from, char *channel, char *to, char *reason)
{
  channel_t *chan = channel_find (channel);
  user_t *fptr = user_find_named (from);
  user_t *user = user_find_named (to);

  if (!chan || !user || !fptr)
    return;

  sts ("%s K %s %s :%s", fptr->uid, channel, user->uid, reason);

  chanuser_delete (chan, user);
}

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

  if (!u)
    return;

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

  sts ("%s P %s :%s", u->uid, target, buf);
}

/* NOTICE wrapper */
static void
nefarious_notice_user_sts (user_t *from, user_t *target, const char *text)
{
  sts ("%s O %s :%s", from ? from->uid : me.numeric, target->uid, text);
}

static void
nefarious_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 O %s*%s :%s", from ? from->uid : me.numeric, ircd->tldprefix, tld->name, text);
      }
    }
  else
    sts ("%s O %s%s :%s", from ? from->uid : me.numeric, ircd->tldprefix, mask, text);
}

static void
nefarious_notice_channel_sts (user_t *from, channel_t *target, const char *text)
{
  sts ("%s O %s :%s", from ? from->uid : me.numeric, target->name, text);
}

static void
nefarious_wallchops (user_t *sender, channel_t *channel, const char *message)
{
  sts ("%s WC %s :%s", sender->uid, channel->name, message);
}

static void
nefarious_numeric_sts (char *from, int numeric, char *target, char *fmt, ...)
{
  va_list ap;
  char buf[BUFSIZE];
  user_t *source_p, *target_p;

  source_p = user_find_named (from);
  target_p = user_find_named (target);

  if (!target_p)
    return;

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

  sts ("%s %d %s %s", source_p ? source_p->uid : me.numeric, numeric, target_p->uid, buf);
}

/* KILL wrapper */
static void
nefarious_skill (char *from, char *nick, char *fmt, ...)
{
  va_list ap;
  char buf[BUFSIZE];
  user_t *fptr = user_find_named (from);
  user_t *tptr = user_find_named (nick);

  if (!tptr)
    return;

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

  sts ("%s D %s :%s!%s!%s (%s)", fptr ? fptr->uid : me.numeric, tptr->uid, from, from, from, buf);
}

/* PART wrapper */
static void
nefarious_part_sts (channel_t *c, user_t *u)
{
  sts ("%s L %s", u->uid, c->name);
}

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

  /* hold permanent akills for four weeks -- jilles */
  sts ("%s GL * +%s@%s %ld :%s", me.numeric, user, host, duration > 0 ? duration : 2419200, reason);
}

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

  sts ("%s GL * -%s@%s", me.numeric, user, host);
}

/* topic wrapper */
static void
nefarious_topic_sts (channel_t *c, const char *setter, time_t ts, time_t prevts, const char *topic)
{
  if (!me.connected || !c)
    return;

  /* for nefarious, set topicsetter iff we can set the proper topicTS */
  if (ts > prevts || prevts == 0)
    sts ("%s T %s %s %ld %ld :%s", chansvs.me->me->uid, c->name, setter, c->ts, ts, topic);
  else
    {
      ts = NOW;
      if (ts < prevts)
        ts = prevts + 1;
      sts ("%s T %s %ld %ld :%s", chansvs.me->me->uid, c->name, c->ts, NOW, topic);
      c->topicts = ts;
    }
}

/* mode wrapper */
static void
nefarious_mode_sts (char *sender, channel_t *target, char *modes)
{
  user_t *fptr = user_find_named (sender);

  if (!fptr)
    return;

  sts ("%s M %s %s", fptr->uid, target->name, modes);
}

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

  sts ("%s G !%ld %s %ld", me.numeric, NOW, me.name, NOW);
}

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

  if (!u)
    return;

  sts ("%s AC %s R %s", me.numeric, u->uid, u->myuser->name);
  check_hidehost (u);
}

/* P10 does not support logout, so kill the user
 * we can't keep track of which logins are stale and which aren't -- jilles 
 * Except we can in Nefarious --nenolod
 */
static bool
nefarious_on_logout (char *origin, char *user, char *wantedhost)
{
  user_t *u = user_find_named (origin);

  if (!me.connected)
    return false;

  if (!u)
    return false;

  sts ("%s AC %s U", me.numeric, u->uid);
  if (u->flags & UF_HIDEHOSTREQ && me.hidehostsuffix != NULL && !strcmp (u->vhost + strlen (u->vhost) - strlen (me.hidehostsuffix), me.hidehostsuffix))
    {
      slog (LG_DEBUG, "nefarious_on_logout(): removing +x vhost for %s: %s -> %s", u->nick, u->vhost, u->host);
      strlcpy (u->vhost, u->host, sizeof u->vhost);
    }

  return false;
}

static void
nefarious_jupe (const char *server, const char *reason)
{
  server_t *s;

  if (!me.connected)
    return;

  /* hold it for a day (arbitrary) -- jilles */
  /* get rid of local deactivation too */
  s = server_find (server);
  if (s != NULL && s->uplink != NULL)
    sts ("%s JU %s +%s %d %ld :%s", me.numeric, s->uplink->sid, server, 86400, NOW, reason);
  sts ("%s JU * +%s %d %ld :%s", me.numeric, server, 86400, NOW, reason);
}

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

  if (!c)
    return;

  if (si->s != NULL)
    source = si->s->name;
  else
    source = si->su->nick;

  if (parc > 2)
    ts = atoi (parv[parc - 2]);
  if (ts == 0)
    ts = NOW;
  else if (c->topic != NULL && ts < c->topicts)
    return;
  handle_topic_from (si, c, parc > 4 ? parv[parc - 4] : source, ts, parv[parc - 1]);
}

/* AB G !1119920789.573932 services.atheme.org 1119920789.573932 */
static void
m_ping (sourceinfo_t *si, int parc, char *parv[])
{
  /* reply to PING's */
  sts ("%s Z %s %s %s", me.numeric, parv[0], parv[1], parv[2]);
}

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

  chanc = sjtoken (parv[0], ',', chanv);

  for (i = 0; i < chanc; i++)
    {
      channel_t *c = channel_add (chanv[i], atoi (parv[1]), si->su->server);

      /* Tell the core to check mode locks now,
       * otherwise it may only happen after the next
       * mode change.
       * P10 does not allow any redundant modes
       * so this will not look ugly. -- jilles */
      channel_mode_va (NULL, c, 1, "+");

      buf[0] = '@';
      buf[1] = '\0';

      strlcat (buf, si->su->uid, BUFSIZE);

      chanuser_add (c, buf);
    }
}

static void
m_join (sourceinfo_t *si, int parc, char *parv[])
{
  int chanc;
  char *chanv[256];
  int i;
  node_t *n, *tn;
  chanuser_t *cu;

  /* JOIN 0 is really a part from all channels */
  if (!strcmp (parv[0], "0"))
    {
      LIST_FOREACH_SAFE (n, tn, si->su->channels.head)
      {
        cu = (chanuser_t *) n->data;
        chanuser_delete (cu->chan, si->su);
      }
      return;
    }
  if (parc < 2)
    return;

  chanc = sjtoken (parv[0], ',', chanv);

  for (i = 0; i < chanc; i++)
    {
      channel_t *c = channel_find (chanv[i]);

      if (!c)
        {
          c = channel_add (chanv[i], atoi (parv[1]), si->su->server);
          channel_mode_va (NULL, c, 1, "+");
        }

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

static void
m_burst (sourceinfo_t *si, int parc, char *parv[])
{
  channel_t *c;
  unsigned int modec;
  char *modev[16];
  unsigned int userc;
  char *userv[256];
  unsigned int i;
  int j;
  char prefix[16];
  char newnick[16 + NICKLEN];
  char *p;
  time_t ts;
  int bantype;

  /* S BURST <channel> <ts> [parameters]
   * parameters can be:
   * +<simple mode>
   * %<bans separated with spaces>
   * <nicks>
   */
  ts = atoi (parv[1]);

  c = channel_find (parv[0]);

  if (c == NULL)
    {
      slog (LG_DEBUG, "m_burst(): new channel: %s", parv[0]);
      c = channel_add (parv[0], ts, si->s);
    }
  else if (ts < c->ts)
    {
      chanuser_t *cu;
      node_t *n;

      clear_simple_modes (c);
      chanban_clear (c);
      handle_topic_from (si, c, "", 0, "");
      LIST_FOREACH (n, c->members.head)
      {
        cu = (chanuser_t *) n->data;
        if (cu->user->server == me.me)
          {
            /* it's a service, reop */
            sts ("%s M %s +o %s", me.numeric, c->name, CLIENT_NAME (cu->user));
            cu->modes = CMODE_OP;
          }
        else
          cu->modes = 0;
      }

      slog (LG_DEBUG, "m_burst(): TS changed for %s (%ld -> %ld)", c->name, c->ts, ts);
      c->ts = ts;
      hook_call_event ("channel_tschange", c);
    }
  if (parc < 3 || parv[2][0] != '+')
    {
      /* Tell the core to check mode locks now,
       * otherwise it may only happen after the next
       * mode change. -- jilles */
      channel_mode_va (NULL, c, 1, "+");
    }

  bantype = 'b';
  j = 2;
  while (j < parc)
    {
      if (parv[j][0] == '+')
        {
          modec = 0;
          modev[modec++] = parv[j++];
          if (strchr (modev[0], 'k') && j < parc)
            modev[modec++] = parv[j++];
          if (strchr (modev[0], 'l') && j < parc)
            modev[modec++] = parv[j++];
          channel_mode (NULL, c, modec, modev);
        }
      else if (parv[j][0] == '%')
        {
          userc = sjtoken (parv[j++] + 1, ' ', userv);
          for (i = 0; i < userc; i++)
            if (!strcmp (userv[i], "~"))
              /* A ban "~" means exceptions are
               * following */
              bantype = 'e';
            else
              chanban_add (c, userv[i], bantype);
        }
      else
        {
          userc = sjtoken (parv[j++], ',', userv);

          prefix[0] = '\0';
          for (i = 0; i < userc; i++)
            {
              p = strchr (userv[i], ':');
              if (p != NULL)
                {
                  *p = '\0';
                  prefix[0] = '\0';
                  prefix[1] = '\0';
                  prefix[2] = '\0';
                  p++;
                  while (*p)
                    {
                      if (*p == 'o')
                        prefix[prefix[0] ? 1 : 0] = '@';
                      else if (*p == 'h')
                        prefix[prefix[0] ? 1 : 0] = '%';
                      else if (*p == 'v')
                        prefix[prefix[0] ? 1 : 0] = '+';
                      p++;
                    }
                }
              strlcpy (newnick, prefix, sizeof newnick);
              strlcat (newnick, userv[i], sizeof newnick);
              chanuser_add (c, newnick);
            }
        }
    }

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

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[])
{
  user_t *u;
  struct in_addr ip;
  char ipstring[64];
  char *p;
  int i;

  /* got the right number of args for an introduction? */
  if (parc >= 8)
    {
      /* -> AB N jilles 1 1137687480 jilles jaguar.test +oiwgrx jilles B]AAAB ABAAE :Jilles Tjoelker */
      /* -> AB N test4 1 1137690148 jilles jaguar.test +iw B]AAAB ABAAG :Jilles Tjoelker */
      slog (LG_DEBUG, "m_nick(): new user on `%s': %s", si->s->name, parv[0]);

      ipstring[0] = '\0';
      if (strlen (parv[parc - 3]) == 6)
        {
          ip.s_addr = ntohl (base64touint (parv[parc - 3]));
          if (!inet_ntop (AF_INET, &ip, ipstring, sizeof ipstring))
            ipstring[0] = '\0';
        }
      u = user_add (parv[0], parv[3], parv[4], NULL, ipstring, parv[parc - 2], parv[parc - 1], si->s, atoi (parv[2]));

      if (parv[5][0] == '+')
        {
          user_mode (u, parv[5]);
          i = 1;
          if (strchr (parv[5], 'r'))
            {
              handle_burstlogin (u, parv[5 + i]);
              /* killed to force logout? */
              if (user_find (parv[parc - 2]) == NULL)
                return;
              i++;
            }
          if (strchr (parv[5], 'h'))
            {
              p = strchr (parv[5 + i], '@');
              if (p == NULL)
                strlcpy (u->vhost, parv[5 + i], sizeof u->vhost);
              else
                {
                  strlcpy (u->vhost, p + 1, sizeof u->vhost);
                  strlcpy (u->user, parv[5 + i], sizeof u->user);
                  p = strchr (u->user, '@');
                  if (p != NULL)
                    *p = '\0';
                }
              i++;
            }
          if (strchr (parv[5], 'x'))
            {
              u->flags |= UF_HIDEHOSTREQ;
              /* this must be after setting the account name */
              check_hidehost (u);
            }
        }

      handle_nickchange (u);
    }
  /* 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]));

      handle_nickchange (si->su);
    }
  else
    {
      slog (LG_DEBUG, "m_nick(): got NICK with wrong (%d) number of params", parc);

      for (i = 0; i < parc; i++)
        slog (LG_DEBUG, "m_nick():   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[])
{
  user_t *u;
  char *p;

  if (*parv[0] == '#')
    channel_mode (NULL, channel_find (parv[0]), parc - 1, &parv[1]);
  else
    {
      /* Yes this is a nick and not a UID -- jilles */
      u = user_find_named (parv[0]);
      if (u == NULL)
        {
          slog (LG_DEBUG, "m_mode(): user mode for unknown user %s", parv[0]);
          return;
        }
      user_mode (u, parv[1]);
      if (strchr (parv[1], 'x'))
        {
          u->flags |= UF_HIDEHOSTREQ;
          check_hidehost (u);
        }
      if (strchr (parv[1], 'h'))
        {
          if (parc > 2)
            {
              /* assume +h */
              p = strchr (parv[2], '@');
              if (p == NULL)
                strlcpy (u->vhost, parv[2], sizeof u->vhost);
              else
                {
                  strlcpy (u->vhost, p + 1, sizeof u->vhost);
                  strlcpy (u->user, parv[2], sizeof u->user);
                  p = strchr (u->user, '@');
                  if (p != NULL)
                    *p = '\0';
                }
              slog (LG_DEBUG, "m_mode(): user %s setting vhost %s@%s", u->nick, u->user, u->vhost);
            }
          else
            {
              /* must be -h */
              /* XXX we don't know the original ident */
              slog (LG_DEBUG, "m_mode(): user %s turning off vhost", u->nick);
              strlcpy (u->vhost, u->host, sizeof u->vhost);
              /* revert to +x vhost if applicable */
              check_hidehost (u);
            }
        }
    }
}

static void
m_clearmode (sourceinfo_t *si, int parc, char *parv[])
{
  channel_t *chan;
  char *p, c;
  node_t *n, *tn;
  chanuser_t *cu;
  int i;

  /* -> ABAAA CM # b */
  /* Note: this is an IRCop command, do not enforce mode locks. */
  chan = channel_find (parv[0]);
  if (chan == NULL)
    {
      slog (LG_DEBUG, "m_clearmode(): unknown channel %s", parv[0]);
      return;
    }
  p = parv[1];
  while ((c = *p++))
    {
      if (c == 'b')
        {
          LIST_FOREACH_SAFE (n, tn, chan->bans.head)
          {
            if (((chanban_t *) n->data)->type == 'b')
              chanban_delete (static_cast<chanban_t *> (n->data));
          }
        }
      else if (c == 'e')
        {
          LIST_FOREACH_SAFE (n, tn, chan->bans.head)
          {
            if (((chanban_t *) n->data)->type == 'e')
              chanban_delete (static_cast<chanban_t *> (n->data));
          }
        }
      else if (c == 'k')
        {
          if (chan->key)
            free (chan->key);
          chan->key = NULL;
        }
      else if (c == 'l')
        chan->limit = 0;
      else if (c == 'o')
        {
          LIST_FOREACH (n, chan->members.head)
          {
            cu = (chanuser_t *) n->data;
            if (cu->user->server == me.me)
              {
                /* it's a service, reop */
                sts ("%s M %s +o %s", me.numeric, chan->name, cu->user->uid);
              }
            else
              cu->modes &= ~CMODE_OP;
          }
        }
      else if (c == 'h')
        {
          LIST_FOREACH (n, chan->members.head)
          {
            cu = (chanuser_t *) n->data;
            cu->modes &= ~CMODE_HALFOP;
          }
        }
      else if (c == 'v')
        {
          LIST_FOREACH (n, chan->members.head)
          {
            cu = (chanuser_t *) n->data;
            cu->modes &= ~CMODE_VOICE;
          }
        }
      else
        for (i = 0; mode_list[i].mode != '\0'; i++)
          {
            if (c == mode_list[i].mode)
              chan->modes &= ~mode_list[i].value;
          }
    }
}

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]);
}

/* SERVER ircu.devel.atheme.org 1 1119902586 1119908830 J10 ABAP] + :lets lol */
static void
m_server (sourceinfo_t *si, int parc, char *parv[])
{
  server_t *s;

  /* We dont care about the max connections. */
  parv[5][2] = '\0';

  slog (LG_DEBUG, "m_server(): new server: %s, id %s, %s", parv[0], parv[5], parv[4][0] == 'P' ? "eob" : "bursting");
  s = handle_server (si, parv[0], parv[5], atoi (parv[1]), parv[7]);

  /* SF_EOB may only be set when we have all users on the server.
   * so store the fact that they are EOB in another flag.
   * handle_eob() will set SF_EOB when the uplink has finished bursting.
   * -- jilles */
  if (s != NULL && parv[4][0] == 'P')
    s->flags |= SF_EOB2;
}

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_motd (sourceinfo_t *si, int parc, char *parv[])
{
  handle_motd (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[])
{
  if (strcmp (curr_uplink->pass, parv[0]))
    {
      slog (LG_INFO, "m_pass(): password mismatch from uplink; aborting");
      runflags |= RF_SHUTDOWN;
    }
}

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_eos (sourceinfo_t *si, int parc, char *parv[])
{
  handle_eob (si->s);

  /* acknowledge a local END_OF_BURST */
  if (si->s->uplink == me.me)
    sts ("%s EA", me.numeric);
}

static void
check_hidehost (user_t *u)
{
  static bool warned = false;

  /* do they qualify? */
  if (!(u->flags & UF_HIDEHOSTREQ) || u->myuser == NULL || (u->myuser->flags & MU_WAITAUTH))
    return;
  /* don't use this if they have some other kind of vhost */
  if (strcmp (u->host, u->vhost))
    {
      slog (LG_DEBUG, "check_hidehost(): +x overruled by other vhost for %s", u->nick);
      return;
    }
  if (me.hidehostsuffix == NULL)
    {
      if (!warned)
        {
          wallops ("Misconfiguration: serverinfo::hidehostsuffix not set");
          warned = true;
        }
      return;
    }
  snprintf (u->vhost, sizeof u->vhost, "%s.%s", u->myuser->name, me.hidehostsuffix);
  slog (LG_DEBUG, "check_hidehost(): %s -> %s", u->nick, u->vhost);
}

void
_modinit (module_t *m)
{
  /* Symbol relocation voodoo. */
  server_login = &nefarious_server_login;
  introduce_nick = &nefarious_introduce_nick;
  quit_sts = &nefarious_quit_sts;
  wallops_sts = &nefarious_wallops_sts;
  join_sts = &nefarious_join_sts;
  kick = &nefarious_kick;
  msg = &nefarious_msg;
  notice_user_sts = &nefarious_notice_user_sts;
  notice_global_sts = &nefarious_notice_global_sts;
  notice_channel_sts = &nefarious_notice_channel_sts;
  wallchops = &nefarious_wallchops;
  numeric_sts = &nefarious_numeric_sts;
  skill = &nefarious_skill;
  part_sts = &nefarious_part_sts;
  kline_sts = &nefarious_kline_sts;
  unkline_sts = &nefarious_unkline_sts;
  topic_sts = &nefarious_topic_sts;
  mode_sts = &nefarious_mode_sts;
  ping_sts = &nefarious_ping_sts;
  ircd_on_login = &nefarious_on_login;
  ircd_on_logout = &nefarious_on_logout;
  jupe = &nefarious_jupe;
  invite_sts = &nefarious_invite_sts;

  parse = &p10_parse;

  mode_list = nefarious_mode_list;
  ignore_mode_list = nefarious_ignore_mode_list;
  status_mode_list = nefarious_status_mode_list;
  prefix_mode_list = nefarious_prefix_mode_list;

  ircd = &Nefarious;

  pcommand_add ("G", m_ping, 1, MSRC_USER | MSRC_SERVER);
  pcommand_add ("Z", m_pong, 1, MSRC_SERVER);
  pcommand_add ("P", m_privmsg, 2, MSRC_USER);
  pcommand_add ("O", m_notice, 2, MSRC_USER | MSRC_SERVER);
  pcommand_add ("NOTICE", m_notice, 2, MSRC_UNREG);
  pcommand_add ("C", m_create, 1, MSRC_USER);
  pcommand_add ("J", m_join, 1, MSRC_USER);
  pcommand_add ("EB", m_eos, 0, MSRC_SERVER);
  pcommand_add ("B", m_burst, 2, MSRC_SERVER);
  pcommand_add ("L", m_part, 1, MSRC_USER);
  pcommand_add ("N", m_nick, 2, MSRC_USER | MSRC_SERVER);
  pcommand_add ("Q", m_quit, 1, MSRC_USER);
  pcommand_add ("M", m_mode, 2, MSRC_USER | MSRC_SERVER);
  pcommand_add ("OM", m_mode, 2, MSRC_USER);    /* OPMODE, treat as MODE */
  pcommand_add ("CM", m_clearmode, 2, MSRC_USER);
  pcommand_add ("K", m_kick, 2, MSRC_USER | MSRC_SERVER);
  pcommand_add ("D", m_kill, 1, MSRC_USER | MSRC_SERVER);
  pcommand_add ("SQ", m_squit, 1, MSRC_USER | MSRC_SERVER);
  pcommand_add ("S", m_server, 8, MSRC_SERVER);
  pcommand_add ("SERVER", m_server, 8, MSRC_UNREG);
  pcommand_add ("R", m_stats, 2, MSRC_USER);
  pcommand_add ("AD", m_admin, 1, MSRC_USER);
  pcommand_add ("V", m_version, 1, MSRC_USER);
  pcommand_add ("F", m_info, 1, MSRC_USER);
  pcommand_add ("W", m_whois, 2, MSRC_USER);
  pcommand_add ("TR", m_trace, 1, MSRC_USER);
  pcommand_add ("A", m_away, 0, MSRC_USER);
  pcommand_add ("PASS", m_pass, 1, MSRC_UNREG);
  pcommand_add ("Y", m_error, 1, MSRC_UNREG | MSRC_SERVER);
  pcommand_add ("ERROR", m_error, 1, MSRC_UNREG | MSRC_SERVER);
  pcommand_add ("T", m_topic, 2, MSRC_USER | MSRC_SERVER);
  pcommand_add ("MO", m_motd, 1, MSRC_USER);

  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:	1.1
Committed:	Thu Jul 19 08:24:55 2007 UTC (19 years, 2 months ago) by pippijn
Content type:	text/plain
Branch:	MAIN
Log Message:	initial import. the most important changes since Atheme are: - fixed many memory leaks - fixed many bugs - converted to C++ and use more STL containers - added a (not very enhanced yet) perl module - greatly improved XML-RPC speed - added a JSON-RPC module with code from json-cpp - added a valgrind memcheck module to operserv - added a more object oriented base64 implementation - added a specialised unit test framework - improved stability - use gettimeofday() if available - reworked adding/removing commands - MemoServ IGNORE DEL can now remove indices