267 lines
6.9 KiB
C
267 lines
6.9 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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#include "stdinc.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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#include "s_newconf.h"
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static const char invite_desc[] = "Provides /invite";
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static void m_invite(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
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struct Message invite_msgtab = {
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"INVITE", 0, 0, 0, 0,
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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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static int can_invite_hook;
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static int invite_hook;
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mapi_clist_av1 invite_clist[] = { &invite_msgtab, NULL };
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mapi_hlist_av1 invite_hlist[] = {
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{ "can_invite", &can_invite_hook },
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{ "invite", &invite_hook },
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{ NULL, NULL }
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};
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DECLARE_MODULE_AV2(invite, NULL, NULL, invite_clist, invite_hlist, NULL, NULL, NULL, invite_desc);
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static bool 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 void
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m_invite(struct MsgBuf *msgbuf_p, 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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hook_data_channel_approval hdata = { 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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{
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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;
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}
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if(check_channel_name(parv[2]) == 0)
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{
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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;
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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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{
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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;
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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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{
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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;
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}
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if((chptr = find_channel(parv[2])) == NULL)
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{
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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;
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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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{
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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;
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}
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if(IsMember(target_p, chptr))
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{
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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;
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}
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if (MyClient(source_p))
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{
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hdata.chptr = chptr;
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hdata.msptr = msptr;
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hdata.client = source_p;
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hdata.target = target_p;
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hdata.approved = !(is_chanop(msptr) || (chptr->mode.mode & MODE_FREEINVITE));
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call_hook(can_invite_hook, &hdata);
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if (hdata.approved)
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{
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if (hdata.error)
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sendto_one_numeric(source_p, hdata.approved, "%s", hdata.error);
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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;
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}
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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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{
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if (ConfigFileEntry.target_change && !IsOperGeneral(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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{
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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;
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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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{
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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;
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}
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if(MyConnect(target_p))
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{
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hdata.chptr = chptr;
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hdata.msptr = msptr;
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hdata.client = source_p;
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hdata.target = target_p;
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hdata.approved = 0;
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call_hook(invite_hook, &hdata);
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if (hdata.approved)
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{
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if (hdata.error)
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sendto_one_numeric(source_p, hdata.approved, "%s", hdata.error);
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return;
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}
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add_reply_target(target_p, source_p);
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sendto_anywhere(target_p, source_p, "INVITE", ":%s", chptr->chname);
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if(store_invite)
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add_invite(chptr, target_p);
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}
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else if (target_p->from != client_p)
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{
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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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}
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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 - true if it is a new invite, else false
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* side effects - client is added to invite list.
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*/
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static bool
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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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{
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if(ptr->data == chptr)
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return false;
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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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{
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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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return true;
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}
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