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[READ-ONLY] Mirror of https://github.com/VibeDevelopers/Comet.
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181/* * ircd-ratbox: A slightly useful ircd. * m_knock.c: Requests to be invited to a channel. * * 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 "hash.h"#include "match.h"#include "ircd.h"#include "numeric.h"#include "send.h"#include "s_conf.h"#include "msg.h"#include "parse.h"#include "modules.h"#include "s_serv.h"#include "supported.h"#include "s_newconf.h"
static const char knock_desc[] = "Provides the KNOCK command to ask for an invite to an invite-only channel";
static void m_knock(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
struct Message knock_msgtab = { "KNOCK", 0, 0, 0, 0, {mg_unreg, {m_knock, 2}, {m_knock, 2}, mg_ignore, mg_ignore, {m_knock, 2}}};
static int_modinit(void){ add_isupport("KNOCK", isupport_boolean, &ConfigChannel.use_knock); return 0;}
static void_moddeinit(void){ delete_isupport("KNOCK");}
mapi_clist_av1 knock_clist[] = { &knock_msgtab, NULL };
DECLARE_MODULE_AV2(knock, _modinit, _moddeinit, knock_clist, NULL, NULL, NULL, NULL, knock_desc);
/* m_knock * parv[1] = channel * * The KNOCK command has the following syntax: * :<sender> KNOCK <channel> * * If a user is not banned from the channel they can use the KNOCK * command to have the server NOTICE the channel operators notifying * they would like to join. Helpful if the channel is invite-only, the * key is forgotten, or the channel is full (INVITE can bypass each one * of these conditions. Concept by Dianora <db@db.net> and written by * <anonymous> */static voidm_knock(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]){ struct Channel *chptr; char *p, *name;
if(MyClient(source_p) && ConfigChannel.use_knock == 0) { sendto_one(source_p, form_str(ERR_KNOCKDISABLED), me.name, source_p->name); return; }
name = LOCAL_COPY(parv[1]);
/* dont allow one knock to multiple chans */ if((p = strchr(name, ','))) *p = '\0';
if((chptr = find_channel(name)) == NULL) { sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL), name); return; }
if(IsMember(source_p, chptr)) { if(MyClient(source_p)) sendto_one(source_p, form_str(ERR_KNOCKONCHAN), me.name, source_p->name, name); return; }
if(!((chptr->mode.mode & MODE_INVITEONLY) || (*chptr->mode.key) || (chptr->mode.limit && rb_dlink_list_length(&chptr->members) >= (unsigned long)chptr->mode.limit))) { sendto_one_numeric(source_p, ERR_CHANOPEN, form_str(ERR_CHANOPEN), name); return; }
/* cant knock to a +p channel */ if(HiddenChannel(chptr)) { sendto_one_numeric(source_p, ERR_CANNOTSENDTOCHAN, form_str(ERR_CANNOTSENDTOCHAN), name); return; }
if(MyClient(source_p)) { /* don't allow a knock if the user is banned */ if(is_banned(chptr, source_p, NULL, NULL, NULL) == CHFL_BAN || is_quieted(chptr, source_p, NULL, NULL) == CHFL_BAN) { sendto_one_numeric(source_p, ERR_CANNOTSENDTOCHAN, form_str(ERR_CANNOTSENDTOCHAN), name); return; }
/* local flood protection: * allow one knock per user per knock_delay * allow one knock per channel per knock_delay_channel */ if(!IsOperGeneral(source_p) && (source_p->localClient->last_knock + ConfigChannel.knock_delay) > rb_current_time()) { sendto_one(source_p, form_str(ERR_TOOMANYKNOCK), me.name, source_p->name, name, "user"); return; } else if((chptr->last_knock + ConfigChannel.knock_delay_channel) > rb_current_time()) { sendto_one(source_p, form_str(ERR_TOOMANYKNOCK), me.name, source_p->name, name, "channel"); return; }
/* ok, we actually can send the knock, tell client */ source_p->localClient->last_knock = rb_current_time();
sendto_one(source_p, form_str(RPL_KNOCKDLVR), me.name, source_p->name, name); }
chptr->last_knock = rb_current_time();
if(ConfigChannel.use_knock) sendto_channel_local(source_p, (chptr->mode.mode & MODE_FREEINVITE) ? ALL_MEMBERS : ONLY_CHANOPS, chptr, form_str(RPL_KNOCK), me.name, name, name, source_p->name, source_p->username, source_p->host);
sendto_server(client_p, chptr, CAP_KNOCK|CAP_TS6, NOCAPS, ":%s KNOCK %s", use_id(source_p), name); sendto_server(client_p, chptr, CAP_KNOCK, CAP_TS6, ":%s KNOCK %s", source_p->name, name);}