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/* |
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* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd). |
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* m_clearchan.c: Performs a channel takeover |
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* |
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* Copyright (C) 2002 by the past and present ircd coders, and others. |
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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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* $Id$ |
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*/ |
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|
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#include "stdinc.h" |
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#include "list.h" |
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#include "handlers.h" |
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#include "channel.h" |
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#include "channel_mode.h" |
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#include "client.h" |
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#include "ircd.h" |
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#include "numeric.h" |
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#include "s_log.h" |
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#include "s_serv.h" |
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#include "send.h" |
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#include "irc_string.h" |
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#include "sprintf_irc.h" |
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#include "hash.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 "s_conf.h" |
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#include "common.h" |
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|
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static void mo_clearchan(struct Client *, struct Client *, int, char *[]); |
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static void kick_list(struct Client *, struct Channel *); |
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static void remove_our_modes(struct Channel *); |
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static void remove_a_mode(struct Channel *, int, char); |
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|
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struct Message clearchan_msgtab = { |
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"CLEARCHAN", 0, 0, 2, 0, MFLG_SLOW, 0, |
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{ m_unregistered, m_not_oper, m_ignore, m_ignore, mo_clearchan, m_ignore } |
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}; |
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|
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void |
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_modinit(void) |
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{ |
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mod_add_cmd(&clearchan_msgtab); |
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} |
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|
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void |
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_moddeinit(void) |
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{ |
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mod_del_cmd(&clearchan_msgtab); |
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} |
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|
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const char *_version = "$Revision$"; |
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|
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/* |
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** mo_clearchan |
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** parv[0] = sender prefix |
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** parv[1] = channel |
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*/ |
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static void |
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mo_clearchan(struct Client *client_p, struct Client *source_p, |
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int parc, char *parv[]) |
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{ |
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struct Channel *chptr = NULL; |
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|
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/* admins only */ |
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if (!IsAdmin(source_p)) |
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{ |
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sendto_one(source_p, form_str(ERR_NOPRIVILEGES), |
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me.name, source_p->name); |
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return; |
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} |
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|
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if ((chptr = hash_find_channel(parv[1])) == NULL) |
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{ |
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sendto_one(source_p, form_str(ERR_NOSUCHCHANNEL), |
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me.name, source_p->name, parv[1]); |
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return; |
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} |
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|
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if (IsMember(source_p, chptr)) |
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{ |
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sendto_one(source_p, ":%s NOTICE %s :*** Please part %s before using CLEARCHAN", |
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me.name, source_p->name, chptr->chname); |
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return; |
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} |
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|
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sendto_wallops_flags(UMODE_WALLOP, &me, "CLEARCHAN called for [%s] by %s!%s@%s", |
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chptr->chname, source_p->name, source_p->username, source_p->host); |
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sendto_server(NULL, NULL, NOCAPS, NOCAPS, |
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":%s WALLOPS :CLEARCHAN called for [%s] by %s!%s@%s", |
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me.name, chptr->chname, source_p->name, source_p->username, |
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source_p->host); |
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ilog(L_NOTICE, "CLEARCHAN called for [%s] by %s!%s@%s", |
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chptr->chname, source_p->name, source_p->username, source_p->host); |
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|
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/* |
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* Kill all the modes we have about the channel.. |
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* making everyone a peon |
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*/ |
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remove_our_modes(chptr); |
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|
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/* SJOIN the user to give them ops, and lock the channel */ |
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sendto_server(client_p, chptr, CAP_TS6, NOCAPS, |
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":%s JOIN %lu %s +ntsi", |
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source_p->id, (unsigned long)(chptr->channelts - 1), |
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chptr->chname); |
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sendto_server(client_p, chptr, NOCAPS, CAP_TS6, |
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":%s SJOIN %lu %s +ntsi :@%s", |
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me.name, (unsigned long)(chptr->channelts - 1), |
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chptr->chname, source_p->name); |
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sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s!%s@%s JOIN %s", |
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source_p->name, source_p->username, |
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source_p->host, chptr->chname); |
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sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s MODE %s +o %s", |
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me.name, chptr->chname, source_p->name); |
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|
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|
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/* |
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* Take the TS down by 1, so we don't see the channel taken over |
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* again. |
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*/ |
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if (chptr->channelts) |
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--chptr->channelts; |
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|
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chptr->mode.mode = MODE_SECRET | MODE_TOPICLIMIT | |
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MODE_INVITEONLY | MODE_NOPRIVMSGS; |
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free_topic(chptr); |
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chptr->mode.key[0] = '\0'; |
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|
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/* Kick the users out and join the oper */ |
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kick_list(source_p, chptr); |
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} |
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|
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static void |
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kick_list(struct Client *source_p, struct Channel *chptr) |
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{ |
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dlink_node *ptr = NULL, *ptr_next = NULL; |
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struct Membership *ms = NULL; |
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|
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DLINK_FOREACH(ptr, chptr->members.head) |
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{ |
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ms = ptr->data; |
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|
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sendto_channel_local(ALL_MEMBERS, 0, chptr, |
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":%s!%s@%s KICK %s %s CLEARCHAN", |
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source_p->name, source_p->username, |
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source_p->host, chptr->chname, ms->client_p->name); |
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sendto_server(NULL, chptr, NOCAPS, NOCAPS, |
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":%s KICK %s %s :CLEARCHAN", source_p->name, |
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chptr->chname, ms->client_p->name); |
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} |
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|
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add_user_to_channel(chptr, source_p, CHFL_CHANOP, 0); |
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|
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DLINK_FOREACH_SAFE(ptr, ptr_next, chptr->members.head) |
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{ |
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ms = ptr->data; |
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|
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if (ms->client_p != source_p) |
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remove_user_from_channel(ms); |
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} |
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|
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/* |
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* Join the user themselves to the channel down here, so they dont see a nicklist |
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* or people being kicked |
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*/ |
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sendto_one(source_p, ":%s!%s@%s JOIN %s", |
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source_p->name, source_p->username, |
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source_p->host, chptr->chname); |
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channel_member_names(source_p, chptr, 1); |
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} |
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|
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/* remove_our_modes() |
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* |
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* inputs - hide from ops or not int flag |
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* - pointer to channel to remove modes from |
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* - client pointer |
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* output - NONE |
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* side effects - Go through the local members, remove all their |
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* chanop modes etc., this side lost the TS. |
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*/ |
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static void |
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remove_our_modes(struct Channel *chptr) |
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{ |
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remove_a_mode(chptr, CHFL_CHANOP, 'o'); |
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#ifdef HALFOPS |
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remove_a_mode(chptr, CHFL_HALFOP, 'h'); |
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#endif |
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remove_a_mode(chptr, CHFL_VOICE, 'v'); |
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|
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/* Clear all +beI modes */ |
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free_channel_list(&chptr->banlist); |
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free_channel_list(&chptr->exceptlist); |
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free_channel_list(&chptr->invexlist); |
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} |
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|
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/* remove_a_mode() |
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* |
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* inputs - |
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* output - NONE |
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* side effects - remove ONE mode from a channel |
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*/ |
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static void |
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remove_a_mode(struct Channel *chptr, int mask, char flag) |
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{ |
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const dlink_node *ptr = NULL; |
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char lmodebuf[MODEBUFLEN]; |
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const char *lpara[4] = { "", "", "", "" }; |
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char *mbuf = lmodebuf; |
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int count = 0; |
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|
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*mbuf++ = '-'; |
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|
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DLINK_FOREACH(ptr, chptr->members.head) |
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{ |
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struct Membership *ms = ptr->data; |
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if ((ms->flags & mask) == 0) |
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continue; |
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|
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ms->flags &= ~mask; |
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|
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lpara[count++] = ms->client_p->name; |
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|
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*mbuf++ = flag; |
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|
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if (count == 4) |
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{ |
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*mbuf = '\0'; |
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sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s MODE %s %s %s %s %s %s", |
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me.name, chptr->chname, lmodebuf, lpara[0], |
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lpara[1], lpara[2], lpara[3]); |
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|
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mbuf = lmodebuf; |
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*mbuf++ = '-'; |
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count = 0; |
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lpara[0] = lpara[1] = lpara[2] = lpara[3] = ""; |
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} |
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} |
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|
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if (count != 0) |
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{ |
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*mbuf = '\0'; |
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sendto_channel_local(ALL_MEMBERS, 0, chptr, ":%s MODE %s %s %s %s %s %s", |
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me.name, chptr->chname, lmodebuf, lpara[0], |
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lpara[1], lpara[2], lpara[3]); |
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} |
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} |
