235 lines
8.3 KiB
C
235 lines
8.3 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* m_kick.c: Kicks a user from a channel.
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*
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*/
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#include "stdinc.h"
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#include "channel.h"
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#include "client.h"
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#include "match.h"
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#include "ircd.h"
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#include "numeric.h"
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#include "send.h"
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#include "msg.h"
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#include "modules.h"
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#include "parse.h"
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#include "hash.h"
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#include "packet.h"
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#include "s_serv.h"
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#include "s_conf.h"
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#include "hook.h"
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static int m_kick(struct Client *, struct Client *, int, const char **);
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#define mg_kick { m_kick, 3 }
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struct Message kick_msgtab = {
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"KICK", 0, 0, 0, MFLG_SLOW,
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{mg_unreg, mg_kick, mg_kick, mg_kick, mg_ignore, mg_kick}
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};
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mapi_clist_av1 kick_clist[] = { &kick_msgtab, NULL };
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DECLARE_MODULE_AV1(kick, NULL, NULL, kick_clist, NULL, NULL, "$Revision: 3317 $");
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/*
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** m_kick
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** parv[1] = channel
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** parv[2] = client to kick
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** parv[3] = kick comment
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*/
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static int
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m_kick(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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struct membership *msptr;
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struct Client *who;
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struct Channel *chptr;
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int chasing = 0;
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char *comment;
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const char *name;
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char *p = NULL;
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char text[10];
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const char *user;
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static char buf[BUFSIZE];
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int is_override = 0;
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if(MyClient(source_p) && !IsFloodDone(source_p))
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flood_endgrace(source_p);
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*buf = '\0';
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if((p = strchr(parv[1], ',')))
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*p = '\0';
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name = parv[1];
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chptr = find_channel(name);
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if(chptr == NULL) {
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sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL), name);
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return 0;
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}
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user = parv[2]; /* strtoken(&p2, parv[2], ","); */
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if(!(who = find_chasing(source_p, user, &chasing))) {
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return 0;
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}
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if(!IsServer(source_p)) {
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msptr = find_channel_membership(chptr, source_p);
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if((msptr == NULL) && MyConnect(source_p)) {
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sendto_one_numeric(source_p, ERR_NOTONCHANNEL,
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form_str(ERR_NOTONCHANNEL), name);
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return 0;
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}
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if(!can_kick_deop(msptr, find_channel_membership(chptr, who))) {
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if(MyConnect(source_p)) {
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if(IsOverride(source_p))
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is_override = 1;
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else {
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sendto_one(source_p, ":%s 482 %s %s :You do not have the proper privileges to kick this user",
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me.name, source_p->name, name);
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return 0;
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}
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}
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/* If its a TS 0 channel, do it the old way */
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else if(chptr->channelts == 0) {
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sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
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get_id(&me, source_p), get_id(source_p, source_p), name);
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return 0;
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}
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}
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/* Its a user doing a kick, but is not showing as chanop locally
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* its also not a user ON -my- server, and the channel has a TS.
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* There are two cases we can get to this point then...
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*
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* 1) connect burst is happening, and for some reason a legit
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* op has sent a KICK, but the SJOIN hasn't happened yet or
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* been seen. (who knows.. due to lag...)
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*
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* 2) The channel is desynced. That can STILL happen with TS
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*
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* Now, the old code roger wrote, would allow the KICK to
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* go through. Thats quite legit, but lets weird things like
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* KICKS by users who appear not to be chanopped happen,
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* or even neater, they appear not to be on the channel.
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* This fits every definition of a desync, doesn't it? ;-)
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* So I will allow the KICK, otherwise, things are MUCH worse.
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* But I will warn it as a possible desync.
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*
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* -Dianora
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*/
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}
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if((p = strchr(parv[2], ',')))
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*p = '\0';
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msptr = find_channel_membership(chptr, who);
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if(msptr != NULL) {
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if(MyClient(source_p) && IsService(who)) {
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sendto_one(source_p, form_str(ERR_ISCHANSERVICE),
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me.name, source_p->name, who->name, chptr->chname);
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return 0;
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}
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if(MyClient(source_p) && chptr->mode.mode & MODE_NOKICK) {
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sendto_one_numeric(source_p, ERR_NOKICK,
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form_str(ERR_NOKICK),
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chptr->chname);
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return 0;
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}
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//NOTE: Will not stop kicks from services.
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if (MyClient(source_p) && chptr->mode.mode & MODE_NOOPERKICK && IsOper(who)) {
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sendto_realops_snomask(SNO_GENERAL, L_NETWIDE,
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"Overriding KICK from %s on %s in %s (channel is +M)",
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source_p->name, who->name, chptr->chname);
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sendto_one_numeric(source_p, ERR_ISCHANSERVICE,
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"%s %s :Cannot kick IRC operators from that channel.",
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who->name, chptr->chname);
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return 0;
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}
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if(MyClient(source_p)) {
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hook_data_channel_approval hookdata;
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hookdata.client = source_p;
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hookdata.chptr = chptr;
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hookdata.target = who;
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hookdata.approved = 1;
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call_hook(h_can_kick, &hookdata);
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if (!hookdata.approved)
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return 0;
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}
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comment = LOCAL_COPY((EmptyString(parv[3])) ? who->name : parv[3]);
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if(strlen(comment) > (size_t) REASONLEN)
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comment[REASONLEN] = '\0';
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if(is_override) {
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sendto_wallops_flags(UMODE_WALLOP, &me,
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"%s is overriding KICK [%s] on [%s] [%s]",
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get_oper_name(source_p), who->name, chptr->chname, comment);
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sendto_server(NULL, chptr, NOCAPS, NOCAPS,
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":%s WALLOPS :%s is overriding KICK [%s] on [%s] [%s]",
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me.name, get_oper_name(source_p), who->name, chptr->chname, comment);
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}
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/* jdc
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* - In the case of a server kicking a user (i.e. CLEARCHAN),
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* the kick should show up as coming from the server which did
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* the kick.
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* - Personally, flame and I believe that server kicks shouldn't
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* be sent anyways. Just waiting for some oper to abuse it...
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*/
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if(IsServer(source_p))
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sendto_channel_local(ALL_MEMBERS, chptr, ":%s KICK %s %s :%s",
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source_p->name, name, who->name, comment);
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else
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sendto_channel_local(ALL_MEMBERS, chptr,
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":%s!%s@%s KICK %s %s :%s",
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source_p->name, source_p->username,
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source_p->host, name, who->name, comment);
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sendto_server(client_p, chptr, CAP_TS6, NOCAPS,
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":%s KICK %s %s :%s",
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use_id(source_p), chptr->chname, use_id(who), comment);
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remove_user_from_channel(msptr);
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snprintf(text, sizeof(text), "K%s", who->id);
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/* we don't need to track NOREJOIN stuff unless it's our client being kicked */
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if(MyClient(who) && chptr->mode.mode & MODE_NOREJOIN)
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channel_metadata_time_add(chptr, text, rb_current_time(), "KICKNOREJOIN");
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} else if (MyClient(source_p))
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sendto_one_numeric(source_p, ERR_USERNOTINCHANNEL,
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form_str(ERR_USERNOTINCHANNEL), user, name);
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return 0;
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}
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