/* This function adds as an extra (weird) operoverride.
* Currently it's only used if you try to operoverride for a +z channel,
* if you then do '/join #chan override' it will put the channel -z and allow you directly in.
* This is to avoid attackers from using 'race conditions' to prevent you from joining.
* PARAMETERS: sptr = the client, chptr = the channel, mval = mode value (eg MODE_ONLYSECURE),
* mchar = mode char (eg 'z')
* RETURNS: 1 if operoverride, 0 if not.
*/
int extended_operoverride(aClient *sptr, aChannel *chptr, char *key, int mval, char mchar)
{
unsigned char invited = 0;
Link *lp;
if (!IsAnOper(sptr) || !OPCanOverride(sptr))
return 0;
for (lp = sptr->user->invited; lp; lp = lp->next)
if (lp->value.chptr == chptr)
{
invited = 1;
break;
}
if (invited)
{
if (key && !strcasecmp(key, "override"))
{
sendto_channelprefix_butone(NULL, &me, chptr, PREFIX_OP|PREFIX_ADMIN|PREFIX_OWNER,
":%s NOTICE @%s :setting channel -%c due to OperOverride request from %s",
me.name, chptr->chname, mchar, sptr->name);
sendto_serv_butone(&me, ":%s MODE %s -%c 0", me.name, chptr->chname, mchar);
sendto_channel_butserv(chptr, &me, ":%s MODE %s -%c", me.name, chptr->chname, mchar);
chptr->mode.mode &= ~mval;
return 1;
}
}
return 0;
}
inline int op_can_override(aClient *sptr)
{
#ifndef NO_OPEROVERRIDE
if (!IsOper(sptr))
return 0;
if (MyClient(sptr) && !OPCanOverride(sptr))
return 0;
return 1;
#else
return 0;
#endif
}
int can_send(aClient *cptr, aChannel *chptr, char *msgtext, int notice)
{
Membership *lp;
int member;
/*
* #0000053 by |savage|, speedup
*/
if (!MyClient(cptr))
{
if (IsClient(cptr))
{
/* channelmode +mu is a special case.. sux!. -- Syzop */
lp = find_membership_link(cptr->user->channel, chptr);
if ((chptr->mode.mode & MODE_MODERATED) && (chptr->mode.mode & MODE_AUDITORIUM) &&
!IsOper(cptr) &&
(!lp || !(lp->flags & (CHFL_CHANOP|CHFL_VOICE|CHFL_CHANOWNER|CHFL_HALFOP|CHFL_CHANPROT))) &&
!is_irc_banned(chptr))
{
sendto_chmodemucrap(cptr, chptr, msgtext);
return (CANNOT_SEND_MODERATED);
}
}
return 0;
}
if (chptr->mode.mode & MODE_NOCOLOR)
{
/* A bit faster */
char *c;
for (c = msgtext; *c; c++)
{
if (*c == 3 || *c == 27 || *c == 4 || *c == 22) /* mirc color, ansi, rgb, reverse */
return (CANNOT_SEND_NOCOLOR);
}
}
member = IsMember(cptr, chptr);
if (chptr->mode.mode & MODE_NOPRIVMSGS && !member)
return (CANNOT_SEND_NOPRIVMSGS);
lp = find_membership_link(cptr->user->channel, chptr);
if ((chptr->mode.mode & MODE_MODREG) && !op_can_override(cptr) && !IsRegNick(cptr) &&
(!lp
|| !(lp->flags & (CHFL_CHANOP | CHFL_VOICE | CHFL_CHANOWNER |
CHFL_HALFOP | CHFL_CHANPROT))))
return CANNOT_SEND_MODREG;
if (chptr->mode.mode & MODE_MODERATED && !op_can_override(cptr) &&
(!lp
|| !(lp->flags & (CHFL_CHANOP | CHFL_VOICE | CHFL_CHANOWNER |
CHFL_HALFOP | CHFL_CHANPROT))))
{
if ((chptr->mode.mode & MODE_AUDITORIUM) && !is_irc_banned(chptr) && !is_banned(cptr, chptr, BANCHK_MSG))
sendto_chmodemucrap(cptr, chptr, msgtext);
return (CANNOT_SEND_MODERATED);
}
if (chptr->mode.mode & MODE_NOCTCP &&
(!lp
|| !(lp->flags & (CHFL_CHANOP | CHFL_CHANOWNER | CHFL_CHANPROT))))
if (msgtext[0] == 1 && strncmp(&msgtext[1], "ACTION ", 7))
return (CANNOT_SEND_NOCTCP);
if (notice && (chptr->mode.extmode & EXTMODE_NONOTICE) &&
(!lp || !(lp->flags & (CHFL_CHANOP | CHFL_CHANOWNER | CHFL_CHANPROT))))
return (CANNOT_SEND_NOTICE);
/* Makes opers able to talk thru bans -Stskeeps suggested by The_Cat */
if (IsOper(cptr) && OPCanOverride(cptr))
return 0;
if ((!lp
|| !(lp->flags & (CHFL_CHANOP | CHFL_VOICE | CHFL_CHANOWNER |
CHFL_HALFOP | CHFL_CHANPROT))) && MyClient(cptr)
&& is_banned(cptr, chptr, BANCHK_MSG))
return (CANNOT_SEND_BAN);
return 0;
}