/* * 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 privileges 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; } //NOTE: Will not stop kicks from services. 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); 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; }