262 lines
9.0 KiB
C
262 lines
9.0 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* m_invite.c: Invites the user to join 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 "common.h"
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#include "channel.h"
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#include "client.h"
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#include "hash.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 "s_conf.h"
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#include "s_serv.h"
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#include "msg.h"
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#include "parse.h"
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#include "modules.h"
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#include "packet.h"
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#include "tgchange.h"
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static int m_invite(struct Client *, struct Client *, int, const char **);
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struct Message invite_msgtab = {
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"INVITE", 0, 0, 0, MFLG_SLOW,
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{mg_unreg, {m_invite, 3}, {m_invite, 3}, mg_ignore, mg_ignore, {m_invite, 3}}
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};
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mapi_clist_av1 invite_clist[] = { &invite_msgtab, NULL };
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DECLARE_MODULE_AV1(invite, NULL, NULL, invite_clist, NULL, NULL, "$Revision: 3438 $");
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static void add_invite(struct Channel *, struct Client *);
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/* m_invite()
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* parv[1] - user to invite
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* parv[2] - channel name
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*/
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static int
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m_invite(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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struct Client *target_p;
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struct Channel *chptr;
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struct membership *msptr;
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int store_invite = 0;
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if(MyClient(source_p) && !IsFloodDone(source_p))
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flood_endgrace(source_p);
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if(MyClient(source_p))
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target_p = find_named_person(parv[1]);
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else
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target_p = find_person(parv[1]);
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if(target_p == NULL) {
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if(!MyClient(source_p) && IsDigit(parv[1][0]))
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sendto_one_numeric(source_p, ERR_NOSUCHNICK,
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"* :Target left IRC. Failed to invite to %s",
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parv[2]);
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else
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sendto_one_numeric(source_p, ERR_NOSUCHNICK,
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form_str(ERR_NOSUCHNICK),
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parv[1]);
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return 0;
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}
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if(check_channel_name(parv[2]) == 0) {
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sendto_one_numeric(source_p, ERR_BADCHANNAME,
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form_str(ERR_BADCHANNAME),
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parv[2]);
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return 0;
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}
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if(!IsChannelName(parv[2])) {
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if(MyClient(source_p))
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sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
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form_str(ERR_NOSUCHCHANNEL), parv[2]);
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return 0;
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}
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/* Do not send local channel invites to users if they are not on the
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* same server as the person sending the INVITE message.
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*/
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if(parv[2][0] == '&' && !MyConnect(target_p)) {
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sendto_one(source_p, form_str(ERR_USERNOTONSERV),
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me.name, source_p->name, target_p->name);
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return 0;
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}
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if(((MyConnect(source_p) && !IsExemptResv(source_p)) ||
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(MyConnect(target_p) && !IsExemptResv(target_p))) &&
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hash_find_resv(parv[2])) {
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sendto_one_numeric(source_p, ERR_BADCHANNAME,
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form_str(ERR_BADCHANNAME),
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parv[2]);
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return 0;
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}
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if((chptr = find_channel(parv[2])) == NULL) {
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sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
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form_str(ERR_NOSUCHCHANNEL), parv[2]);
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return 0;
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}
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msptr = find_channel_membership(chptr, source_p);
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if(MyClient(source_p) && (msptr == NULL)) {
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sendto_one_numeric(source_p, ERR_NOTONCHANNEL,
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form_str(ERR_NOTONCHANNEL), parv[2]);
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return 0;
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}
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if(IsMember(target_p, chptr)) {
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sendto_one_numeric(source_p, ERR_USERONCHANNEL,
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form_str(ERR_USERONCHANNEL),
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target_p->name, parv[2]);
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return 0;
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}
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/* unconditionally require ops, unless the channel is +g */
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/* treat remote clients as chanops */
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if(MyClient(source_p) && !is_any_op(msptr) &&
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!(chptr->mode.mode & MODE_FREEINVITE)) {
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if(IsOverride(source_p)) {
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sendto_wallops_flags(UMODE_WALLOP, &me,
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"%s is overriding INVITE [%s] on [%s]",
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get_oper_name(source_p), target_p->name, chptr->chname);
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sendto_server(NULL, chptr, NOCAPS, NOCAPS,
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":%s WALLOPS :%s is overriding INVITE [%s] on [%s]",
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me.name, get_oper_name(source_p), target_p->name, chptr->chname);
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} else {
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sendto_one(source_p, form_str(ERR_CHANOPRIVSNEEDED),
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me.name, source_p->name, parv[2]);
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return 0;
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}
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}
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if (IsSetNoInvite(target_p)) {
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sendto_one_numeric(source_p, ERR_NOINVITE,
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form_str(ERR_NOINVITE),
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target_p->name);
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return 0;
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}
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/* store invites when they could affect the ability to join
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* for +l/+j just check if the mode is set, this varies over time
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*/
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if(chptr->mode.mode & MODE_INVITEONLY ||
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(chptr->mode.mode & MODE_REGONLY && EmptyString(target_p->user->suser)) ||
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chptr->mode.limit || chptr->mode.join_num)
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store_invite = 1;
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if(MyConnect(source_p)) {
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if (ConfigFileEntry.target_change && !IsOper(source_p) &&
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!find_allowing_channel(source_p, target_p) &&
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!add_target(source_p, target_p)) {
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sendto_one(source_p, form_str(ERR_TARGCHANGE),
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me.name, source_p->name, target_p->name);
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return 0;
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}
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sendto_one(source_p, form_str(RPL_INVITING),
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me.name, source_p->name,
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target_p->name, parv[2]);
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if(target_p->user->away)
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sendto_one_numeric(source_p, RPL_AWAY, form_str(RPL_AWAY),
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target_p->name, target_p->user->away);
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}
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/* invite timestamp */
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else if(parc > 3 && !EmptyString(parv[3])) {
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/* this should never be less than */
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if(atol(parv[3]) > chptr->channelts)
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return 0;
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}
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if(MyConnect(target_p)) {
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if(!IsOper(source_p) && (IsSetCallerId(target_p) ||
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(IsSetRegOnlyMsg(target_p) && !source_p->user->suser[0])) &&
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!accept_message(source_p, target_p)) {
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if (IsSetRegOnlyMsg(target_p) && !source_p->user->suser[0]) {
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sendto_one_numeric(source_p, ERR_NONONREG,
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form_str(ERR_NONONREG),
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target_p->name);
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return 0;
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} else {
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/* instead of sending RPL_UMODEGMSG,
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* just let the invite through
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*/
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if((target_p->localClient->last_caller_id_time +
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ConfigFileEntry.caller_id_wait) >= rb_current_time()) {
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sendto_one_numeric(source_p, ERR_TARGUMODEG,
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form_str(ERR_TARGUMODEG),
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target_p->name);
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return 0;
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}
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target_p->localClient->last_caller_id_time = rb_current_time();
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}
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}
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add_reply_target(target_p, source_p);
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sendto_one(target_p, ":%s!%s@%s INVITE %s :%s",
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source_p->name, source_p->username, source_p->host,
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target_p->name, chptr->chname);
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if(store_invite)
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add_invite(chptr, target_p);
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} else if(target_p->from != client_p) {
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sendto_one_prefix(target_p, source_p, "INVITE", "%s %lu",
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chptr->chname, (unsigned long) chptr->channelts);
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}
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return 0;
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}
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/* add_invite()
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*
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* input - channel to add invite to, client to add
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* output -
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* side effects - client is added to invite list.
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*/
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static void
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add_invite(struct Channel *chptr, struct Client *who)
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{
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rb_dlink_node *ptr;
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/* already invited? */
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RB_DLINK_FOREACH(ptr, who->user->invited.head) {
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if(ptr->data == chptr)
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return;
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}
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/* ok, if their invite list is too long, remove the tail */
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if((int)rb_dlink_list_length(&who->user->invited) >=
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ConfigChannel.max_chans_per_user) {
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ptr = who->user->invited.tail;
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del_invite(ptr->data, who);
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}
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/* add user to channel invite list */
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rb_dlinkAddAlloc(who, &chptr->invites);
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/* add channel to user invite list */
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rb_dlinkAddAlloc(chptr, &who->user->invited);
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}
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