elemental-ircd/modules/core/m_mode.c

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/*
* ircd-ratbox: A slightly useful ircd.
* m_mode.c: Sets a user or channel mode.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox development team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* $Id: m_mode.c 1006 2006-03-09 15:32:14Z nenolod $
*/
#include "stdinc.h"
#include "tools.h"
#include "balloc.h"
#include "channel.h"
#include "client.h"
#include "hash.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "s_user.h"
#include "s_conf.h"
#include "s_serv.h"
#include "s_log.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "packet.h"
#include "sprintf_irc.h"
#include "s_newconf.h"
static int m_mode(struct Client *, struct Client *, int, const char **);
static int ms_mode(struct Client *, struct Client *, int, const char **);
static int ms_tmode(struct Client *, struct Client *, int, const char **);
static int ms_bmask(struct Client *, struct Client *, int, const char **);
struct Message mode_msgtab = {
"MODE", 0, 0, 0, MFLG_SLOW,
{mg_unreg, {m_mode, 2}, {m_mode, 3}, {ms_mode, 3}, mg_ignore, {m_mode, 2}}
};
struct Message tmode_msgtab = {
"TMODE", 0, 0, 0, MFLG_SLOW,
{mg_ignore, mg_ignore, {ms_tmode, 4}, {ms_tmode, 4}, mg_ignore, mg_ignore}
};
struct Message bmask_msgtab = {
"BMASK", 0, 0, 0, MFLG_SLOW,
{mg_ignore, mg_ignore, mg_ignore, {ms_bmask, 5}, mg_ignore, mg_ignore}
};
mapi_clist_av1 mode_clist[] = { &mode_msgtab, &tmode_msgtab, &bmask_msgtab, NULL };
DECLARE_MODULE_AV1(mode, NULL, NULL, mode_clist, NULL, NULL, "$Revision: 1006 $");
/*
* m_mode - MODE command handler
* parv[0] - sender
* parv[1] - channel
*/
static int
m_mode(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct Channel *chptr = NULL;
struct membership *msptr;
int n = 2;
const char *dest;
int operspy = 0;
dest = parv[1];
if(IsOperSpy(source_p) && *dest == '!')
{
dest++;
operspy = 1;
if(EmptyString(dest))
{
sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
me.name, source_p->name, "MODE");
return 0;
}
}
/* Now, try to find the channel in question */
if(!IsChanPrefix(*dest))
{
/* if here, it has to be a non-channel name */
user_mode(client_p, source_p, parc, parv);
return 0;
}
if(!check_channel_name(dest))
{
sendto_one_numeric(source_p, ERR_BADCHANNAME, form_str(ERR_BADCHANNAME), parv[1]);
return 0;
}
chptr = find_channel(dest);
if(chptr == NULL)
{
sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
form_str(ERR_NOSUCHCHANNEL), parv[1]);
return 0;
}
/* Now know the channel exists */
if(parc < n + 1)
{
if(operspy)
report_operspy(source_p, "MODE", chptr->chname);
sendto_one(source_p, form_str(RPL_CHANNELMODEIS),
me.name, source_p->name, parv[1],
operspy ? channel_modes(chptr, &me) : channel_modes(chptr, source_p));
sendto_one(source_p, form_str(RPL_CREATIONTIME),
me.name, source_p->name, parv[1], chptr->channelts);
}
else
{
msptr = find_channel_membership(chptr, source_p);
/* Finish the flood grace period... */
if(MyClient(source_p) && !IsFloodDone(source_p))
{
if(!((parc == 3) && (parv[2][0] == 'b') && (parv[2][1] == '\0')))
flood_endgrace(source_p);
}
set_channel_mode(client_p, source_p, chptr, msptr, parc - n, parv + n);
}
return 0;
}
static int
ms_mode(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct Channel *chptr;
chptr = find_channel(parv[1]);
if(chptr == NULL)
{
sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
form_str(ERR_NOSUCHCHANNEL), parv[1]);
return 0;
}
set_channel_mode(client_p, source_p, chptr, NULL, parc - 2, parv + 2);
return 0;
}
static int
ms_tmode(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct Channel *chptr = NULL;
struct membership *msptr;
/* Now, try to find the channel in question */
if(!IsChanPrefix(parv[2][0]) || !check_channel_name(parv[2]))
{
sendto_one_numeric(source_p, ERR_BADCHANNAME, form_str(ERR_BADCHANNAME), parv[2]);
return 0;
}
chptr = find_channel(parv[2]);
if(chptr == NULL)
{
sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
form_str(ERR_NOSUCHCHANNEL), parv[2]);
return 0;
}
/* TS is higher, drop it. */
if(atol(parv[1]) > chptr->channelts)
return 0;
if(IsServer(source_p))
{
set_channel_mode(client_p, source_p, chptr, NULL, parc - 3, parv + 3);
}
else
{
msptr = find_channel_membership(chptr, source_p);
set_channel_mode(client_p, source_p, chptr, msptr, parc - 3, parv + 3);
}
return 0;
}
static int
ms_bmask(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
static char modebuf[BUFSIZE];
static char parabuf[BUFSIZE];
struct Channel *chptr;
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rb_dlink_list *banlist;
const char *s;
char *t;
char *mbuf;
char *pbuf;
long mode_type;
int mlen;
int plen = 0;
int tlen;
int arglen;
int modecount = 0;
int needcap = NOCAPS;
int mems;
struct Client *fakesource_p;
if(!IsChanPrefix(parv[2][0]) || !check_channel_name(parv[2]))
return 0;
if((chptr = find_channel(parv[2])) == NULL)
return 0;
/* TS is higher, drop it. */
if(atol(parv[1]) > chptr->channelts)
return 0;
switch (parv[3][0])
{
case 'b':
banlist = &chptr->banlist;
mode_type = CHFL_BAN;
mems = ALL_MEMBERS;
break;
case 'e':
banlist = &chptr->exceptlist;
mode_type = CHFL_EXCEPTION;
needcap = CAP_EX;
mems = ONLY_CHANOPS;
break;
case 'I':
banlist = &chptr->invexlist;
mode_type = CHFL_INVEX;
needcap = CAP_IE;
mems = ONLY_CHANOPS;
break;
case 'q':
banlist = &chptr->quietlist;
mode_type = CHFL_QUIET;
mems = ALL_MEMBERS;
break;
/* maybe we should just blindly propagate this? */
default:
return 0;
}
parabuf[0] = '\0';
s = LOCAL_COPY(parv[4]);
/* Hide connecting server on netburst -- jilles */
if (ConfigServerHide.flatten_links && !HasSentEob(source_p))
fakesource_p = &me;
else
fakesource_p = source_p;
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mlen = rb_sprintf(modebuf, ":%s MODE %s +", fakesource_p->name, chptr->chname);
mbuf = modebuf + mlen;
pbuf = parabuf;
while(*s == ' ')
s++;
/* next char isnt a space, point t to the next one */
if((t = strchr(s, ' ')) != NULL)
{
*t++ = '\0';
/* double spaces will break the parser */
while(*t == ' ')
t++;
}
/* couldve skipped spaces and got nothing.. */
while(!EmptyString(s))
{
/* ban with a leading ':' -- this will break the protocol */
if(*s == ':')
goto nextban;
tlen = strlen(s);
/* I dont even want to begin parsing this.. */
if(tlen > MODEBUFLEN)
break;
if(add_id(fakesource_p, chptr, s, banlist, mode_type))
{
/* this new one wont fit.. */
if(mlen + MAXMODEPARAMS + plen + tlen > BUFSIZE - 5 ||
modecount >= MAXMODEPARAMS)
{
*mbuf = '\0';
*(pbuf - 1) = '\0';
sendto_channel_local(mems, chptr, "%s %s", modebuf, parabuf);
sendto_server(client_p, chptr, needcap, CAP_TS6,
"%s %s", modebuf, parabuf);
mbuf = modebuf + mlen;
pbuf = parabuf;
plen = modecount = 0;
}
*mbuf++ = parv[3][0];
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arglen = rb_sprintf(pbuf, "%s ", s);
pbuf += arglen;
plen += arglen;
modecount++;
}
nextban:
s = t;
if(s != NULL)
{
if((t = strchr(s, ' ')) != NULL)
{
*t++ = '\0';
while(*t == ' ')
t++;
}
}
}
if(modecount)
{
*mbuf = '\0';
*(pbuf - 1) = '\0';
sendto_channel_local(mems, chptr, "%s %s", modebuf, parabuf);
sendto_server(client_p, chptr, needcap, CAP_TS6, "%s %s", modebuf, parabuf);
}
sendto_server(client_p, chptr, CAP_TS6 | needcap, NOCAPS, ":%s BMASK %ld %s %s :%s",
source_p->id, (long) chptr->channelts, chptr->chname, parv[3], parv[4]);
return 0;
}