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/*
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
*
* Copyright (c) 1997-2014 ircd-hybrid 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
*/
/*! \file m_kick.c
* \brief Includes required functions for processing the KICK command.
* \version $Id$
*/
#include "stdinc.h"
#include "list.h"
#include "channel.h"
#include "channel_mode.h"
#include "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "send.h"
#include "modules.h"
#include "parse.h"
#include "hash.h"
#include "packet.h"
#include "s_serv.h"
/* m_kick()
* parv[0] = sender prefix
* 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, char *parv[])
{
struct Client *target_p = NULL;
struct Channel *chptr = NULL;
char *comment = NULL;
const char *from, *to;
struct Membership *ms_source = NULL;
struct Membership *ms_target = NULL;
if (!MyConnect(source_p) && IsCapable(source_p->from, CAP_TS6) && HasID(source_p))
{
from = me.id;
to = source_p->id;
}
else
{
from = me.name;
to = source_p->name;
}
if (EmptyString(parv[2]))
{
sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
from, to, "KICK");
return 0;
}
if (MyClient(source_p) && !IsFloodDone(source_p))
flood_endgrace(source_p);
if ((chptr = hash_find_channel(parv[1])) == NULL)
{
sendto_one(source_p, form_str(ERR_NOSUCHCHANNEL),
from, to, parv[1]);
return 0;
}
if (!IsServer(source_p) && !HasFlag(source_p, FLAGS_SERVICE))
{
if ((ms_source = find_channel_link(source_p, chptr)) == NULL)
{
if (MyConnect(source_p))
{
sendto_one(source_p, form_str(ERR_NOTONCHANNEL),
me.name, source_p->name, chptr->chname);
return 0;
}
}
if (!has_member_flags(ms_source, CHFL_CHANOP|CHFL_HALFOP))
{
/* was a user, not a server, and user isn't seen as a chanop here */
if (MyConnect(source_p))
{
/* user on _my_ server, with no chanops.. so go away */
sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
me.name, source_p->name, chptr->chname);
return 0;
}
if (chptr->channelts == 0)
{
/* If its a TS 0 channel, do it the old way */
sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
from, to, chptr->chname);
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 ((target_p = find_chasing(source_p, parv[2])) == NULL)
return 0;
if ((ms_target = find_channel_link(target_p, chptr)) != NULL)
{
#ifdef HALFOPS
if (has_member_flags(ms_source, CHFL_HALFOP) && !has_member_flags(ms_source, CHFL_CHANOP))
{
if (has_member_flags(ms_target, CHFL_CHANOP|CHFL_HALFOP))
{
sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
me.name, source_p->name, chptr->chname);
return 0;
}
}
#endif
comment = (EmptyString(parv[3])) ? source_p->name : parv[3];
if (strlen(comment) > (size_t)KICKLEN)
comment[KICKLEN] = '\0';
/* 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, 0, chptr, ":%s KICK %s %s :%s",
source_p->name, chptr->chname, target_p->name, comment);
else
sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s!%s@%s KICK %s %s :%s",
source_p->name, source_p->username,
source_p->host, chptr->chname, target_p->name, comment);
sendto_server(client_p, CAP_TS6, NOCAPS,
":%s KICK %s %s :%s",
ID(source_p), chptr->chname, ID(target_p), comment);
sendto_server(client_p, NOCAPS, CAP_TS6,
":%s KICK %s %s :%s", source_p->name, chptr->chname,
target_p->name, comment);
remove_user_from_channel(ms_target);
}
else
sendto_one(source_p, form_str(ERR_USERNOTINCHANNEL),
from, to, target_p->name, chptr->chname);
return 0;
}
static struct Message kick_msgtab =
{
"KICK", 0, 0, 3, MAXPARA, MFLG_SLOW, 0,
{ m_unregistered, m_kick, m_kick, m_ignore, m_kick, m_ignore }
};
static void
module_init(void)
{
mod_add_cmd(&kick_msgtab);
}
static void
module_exit(void)
{
mod_del_cmd(&kick_msgtab);
}
struct module module_entry =
{
.node = { NULL, NULL, NULL },
.name = NULL,
.version = "$Revision$",
.handle = NULL,
.modinit = module_init,
.modexit = module_exit,
.flags = MODULE_FLAG_CORE
};
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