elemental-ircd/modules/core/m_kick.c

249 lines
7.0 KiB
C

/*
* ircd-ratbox: A slightly useful ircd.
* m_kick.c: Kicks a user from a channel.
*
* 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
*
*/
#include "stdinc.h"
#include "channel.h"
#include "client.h"
#include "match.h"
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "msg.h"
#include "modules.h"
#include "parse.h"
#include "hash.h"
#include "packet.h"
#include "s_serv.h"
#include "s_conf.h"
#include "hook.h"
static int m_kick(struct Client *, struct Client *, int, const char **);
#define mg_kick { m_kick, 3 }
struct Message kick_msgtab = {
"KICK", 0, 0, 0, MFLG_SLOW,
{mg_unreg, mg_kick, mg_kick, mg_kick, mg_ignore, mg_kick}
};
mapi_clist_av1 kick_clist[] = { &kick_msgtab, NULL };
DECLARE_MODULE_AV1(kick, NULL, NULL, kick_clist, NULL, NULL, "$Revision: 3317 $");
/*
** m_kick
** parv[1] = channel
** parv[2] = client to kick
** parv[3] = kick comment
*/
static int
m_kick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
struct membership *msptr;
struct Client *who;
struct Channel *chptr;
int chasing = 0;
char *comment;
const char *name;
char *p = NULL;
char text[10];
const char *user;
static char buf[BUFSIZE];
int is_override = 0;
if(MyClient(source_p) && !IsFloodDone(source_p))
flood_endgrace(source_p);
*buf = '\0';
if((p = strchr(parv[1], ',')))
*p = '\0';
name = parv[1];
chptr = find_channel(name);
if(chptr == NULL)
{
sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL), name);
return 0;
}
user = parv[2]; /* strtoken(&p2, parv[2], ","); */
if(!(who = find_chasing(source_p, user, &chasing)))
{
return 0;
}
if(!IsServer(source_p))
{
msptr = find_channel_membership(chptr, source_p);
if((msptr == NULL) && MyConnect(source_p))
{
sendto_one_numeric(source_p, ERR_NOTONCHANNEL,
form_str(ERR_NOTONCHANNEL), name);
return 0;
}
if(!can_kick_deop(msptr, find_channel_membership(chptr, who)))
{
if(MyConnect(source_p))
{
if(IsOverride(source_p))
is_override = 1;
else
{
sendto_one(source_p, ":%s 482 %s %s :You do not have the proper privledges to kick this user",
me.name, source_p->name, name);
return 0;
}
}
/* If its a TS 0 channel, do it the old way */
else if(chptr->channelts == 0)
{
sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
get_id(&me, source_p), get_id(source_p, source_p), name);
return 0;
}
}
/* Its a user doing a kick, but is not showing as chanop locally
* its also not a user ON -my- server, and the channel has a TS.
* There are two cases we can get to this point then...
*
* 1) connect burst is happening, and for some reason a legit
* op has sent a KICK, but the SJOIN hasn't happened yet or
* been seen. (who knows.. due to lag...)
*
* 2) The channel is desynced. That can STILL happen with TS
*
* Now, the old code roger wrote, would allow the KICK to
* go through. Thats quite legit, but lets weird things like
* KICKS by users who appear not to be chanopped happen,
* or even neater, they appear not to be on the channel.
* This fits every definition of a desync, doesn't it? ;-)
* So I will allow the KICK, otherwise, things are MUCH worse.
* But I will warn it as a possible desync.
*
* -Dianora
*/
}
if((p = strchr(parv[2], ',')))
*p = '\0';
msptr = find_channel_membership(chptr, who);
if(msptr != NULL)
{
if(MyClient(source_p) && IsService(who))
{
sendto_one(source_p, form_str(ERR_ISCHANSERVICE),
me.name, source_p->name, who->name, chptr->chname);
return 0;
}
if(MyClient(source_p) && chptr->mode.mode & MODE_NOKICK)
{
sendto_one_numeric(source_p, ERR_NOKICK,
form_str(ERR_NOKICK),
chptr->chname);
return 0;
}
if (MyClient(source_p) && chptr->mode.mode & MODE_NOOPERKICK && IsOper(who))
{
sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
"Overriding KICK from %s on %s in %s (channel is +M)",
source_p->name, who->name, chptr->chname);
sendto_one_numeric(source_p, ERR_ISCHANSERVICE,
"%s %s :Cannot kick IRC operators from that channel.",
who->name, chptr->chname);
return 0;
}
if(MyClient(source_p))
{
hook_data_channel_approval hookdata;
hookdata.client = source_p;
hookdata.chptr = chptr;
hookdata.target = who;
hookdata.approved = 1;
call_hook(h_can_kick, &hookdata);
if (!hookdata.approved)
return 0;
}
comment = LOCAL_COPY((EmptyString(parv[3])) ? who->name : parv[3]);
if(strlen(comment) > (size_t) REASONLEN)
comment[REASONLEN] = '\0';
if(is_override)
{
sendto_wallops_flags(UMODE_WALLOP, &me,
"%s is overriding KICK [%s] on [%s] [%s]",
get_oper_name(source_p), who->name, chptr->chname, comment);
sendto_server(NULL, chptr, NOCAPS, NOCAPS,
":%s WALLOPS :%s is overriding KICK [%s] on [%s] [%s]",
me.name, get_oper_name(source_p), who->name, chptr->chname, comment);
}
/* jdc
* - In the case of a server kicking a user (i.e. CLEARCHAN),
* the kick should show up as coming from the server which did
* the kick.
* - Personally, flame and I believe that server kicks shouldn't
* be sent anyways. Just waiting for some oper to abuse it...
*/
if(IsServer(source_p))
sendto_channel_local(ALL_MEMBERS, chptr, ":%s KICK %s %s :%s",
source_p->name, name, who->name, comment);
else
sendto_channel_local(ALL_MEMBERS, chptr,
":%s!%s@%s KICK %s %s :%s",
source_p->name, source_p->username,
source_p->host, name, who->name, comment);
sendto_server(client_p, chptr, CAP_TS6, NOCAPS,
":%s KICK %s %s :%s",
use_id(source_p), chptr->chname, use_id(who), comment);
remove_user_from_channel(msptr);
rb_snprintf(text, sizeof(text), "K%s", who->id);
/* we don't need to track NOREJOIN stuff unless it's our client being kicked */
if(MyClient(who) && chptr->mode.mode & MODE_NOREJOIN)
channel_metadata_time_add(chptr, text, rb_current_time(), "KICKNOREJOIN");
}
else if (MyClient(source_p))
sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL,
form_str(ERR_USERNOTINCHANNEL), user, name);
return 0;
}