514 lines
13 KiB
C
514 lines
13 KiB
C
/* modules/m_xline.c
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*
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* Copyright (C) 2002-2003 Lee Hardy <lee@leeh.co.uk>
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1.Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2.Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3.The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id$
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*/
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#include "stdinc.h"
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#include "send.h"
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#include "channel.h"
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#include "client.h"
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#include "common.h"
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#include "config.h"
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#include "class.h"
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#include "ircd.h"
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#include "numeric.h"
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#include "logger.h"
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#include "s_serv.h"
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#include "whowas.h"
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#include "match.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 "s_newconf.h"
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#include "reject.h"
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#include "bandbi.h"
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static int mo_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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static int ms_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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static int me_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
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static int mo_unxline(struct Client *client_p, struct Client *source_p, int parc,
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const char *parv[]);
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static int ms_unxline(struct Client *client_p, struct Client *source_p, int parc,
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const char *parv[]);
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static int me_unxline(struct Client *client_p, struct Client *source_p, int parc,
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const char *parv[]);
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struct Message xline_msgtab = {
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"XLINE", 0, 0, 0, MFLG_SLOW,
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{mg_unreg, mg_not_oper, {ms_xline, 5}, {ms_xline, 5}, {me_xline, 5}, {mo_xline, 3}}
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};
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struct Message unxline_msgtab = {
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"UNXLINE", 0, 0, 0, MFLG_SLOW,
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{mg_unreg, mg_not_oper, {ms_unxline, 3}, {ms_unxline, 3}, {me_unxline, 2}, {mo_unxline, 2}}
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};
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mapi_clist_av1 xline_clist[] = { &xline_msgtab, &unxline_msgtab, NULL };
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DECLARE_MODULE_AV1(xline, NULL, NULL, xline_clist, NULL, NULL, "$Revision$");
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static int valid_xline(struct Client *, const char *, const char *);
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static void apply_xline(struct Client *client_p, const char *name,
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const char *reason, int temp_time);
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static void propagate_xline(struct Client *source_p, const char *target,
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int temp_time, const char *name, const char *type, const char *reason);
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static void cluster_xline(struct Client *source_p, int temp_time,
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const char *name, const char *reason);
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static void handle_remote_xline(struct Client *source_p, int temp_time,
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const char *name, const char *reason);
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static void handle_remote_unxline(struct Client *source_p, const char *name);
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static void remove_xline(struct Client *source_p, const char *name);
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/* m_xline()
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*
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* parv[1] - thing to xline
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* parv[2] - optional type/reason
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* parv[3] - reason
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*/
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static int
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mo_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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struct ConfItem *aconf;
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const char *name;
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const char *reason;
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const char *target_server = NULL;
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int temp_time;
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int loc = 1;
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if(!IsOperXline(source_p))
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{
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sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "xline");
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return 0;
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}
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if((temp_time = valid_temp_time(parv[loc])) >= 0)
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loc++;
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/* we just set temp_time to -1! */
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else
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temp_time = 0;
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name = parv[loc];
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loc++;
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/* XLINE <gecos> ON <server> :<reason> */
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if(parc >= loc + 2 && !irccmp(parv[loc], "ON"))
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{
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if(!IsOperRemoteBan(source_p))
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{
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sendto_one(source_p, form_str(ERR_NOPRIVS),
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me.name, source_p->name, "remoteban");
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return 0;
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}
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target_server = parv[loc + 1];
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loc += 2;
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}
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if(parc <= loc || EmptyString(parv[loc]))
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{
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sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
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me.name, source_p->name, "XLINE");
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return 0;
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}
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reason = parv[loc];
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if(target_server != NULL)
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{
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propagate_xline(source_p, target_server, temp_time, name, "2", reason);
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if(!match(target_server, me.name))
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return 0;
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}
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else if(rb_dlink_list_length(&cluster_conf_list) > 0)
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cluster_xline(source_p, temp_time, name, reason);
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if((aconf = find_xline_mask(name)) != NULL)
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{
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sendto_one(source_p, ":%s NOTICE %s :[%s] already X-Lined by [%s] - %s",
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me.name, source_p->name, name, aconf->name, aconf->passwd);
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return 0;
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}
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if(!valid_xline(source_p, name, reason))
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return 0;
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apply_xline(source_p, name, reason, temp_time);
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return 0;
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}
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/* ms_xline()
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*
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* handles a remote xline
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*/
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static int
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ms_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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/* parv[0] parv[1] parv[2] parv[3] parv[4]
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* oper target serv xline type reason
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*/
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propagate_xline(source_p, parv[1], 0, parv[2], parv[3], parv[4]);
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if(!IsPerson(source_p))
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return 0;
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/* destined for me? */
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if(!match(parv[1], me.name))
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return 0;
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handle_remote_xline(source_p, 0, parv[2], parv[4]);
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return 0;
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}
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static int
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me_xline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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/* time name type :reason */
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if(!IsPerson(source_p))
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return 0;
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handle_remote_xline(source_p, atoi(parv[1]), parv[2], parv[4]);
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return 0;
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}
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static void
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handle_remote_xline(struct Client *source_p, int temp_time, const char *name, const char *reason)
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{
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struct ConfItem *aconf;
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if(!find_shared_conf(source_p->username, source_p->host,
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source_p->servptr->name,
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(temp_time > 0) ? SHARED_TXLINE : SHARED_PXLINE))
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return;
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if(!valid_xline(source_p, name, reason))
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return;
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/* already xlined */
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if((aconf = find_xline_mask(name)) != NULL)
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{
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sendto_one_notice(source_p, ":[%s] already X-Lined by [%s] - %s", name, aconf->name,
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aconf->passwd);
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return;
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}
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apply_xline(source_p, name, reason, temp_time);
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}
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/* valid_xline()
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*
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* inputs - client xlining, gecos, reason and whether to warn
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* outputs -
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* side effects - checks the xline for validity, erroring if needed
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*/
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static int
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valid_xline(struct Client *source_p, const char *gecos, const char *reason)
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{
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if(EmptyString(reason))
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{
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sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
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get_id(&me, source_p), get_id(source_p, source_p), "XLINE");
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return 0;
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}
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if(strchr(reason, ':') != NULL)
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{
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sendto_one_notice(source_p, ":Invalid character ':' in comment");
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return 0;
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}
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if(strchr(reason, '"'))
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{
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sendto_one_notice(source_p, ":Invalid character '\"' in comment");
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return 0;
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}
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if(!valid_wild_card_simple(gecos))
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{
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sendto_one_notice(source_p,
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":Please include at least %d non-wildcard "
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"characters with the xline",
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ConfigFileEntry.min_nonwildcard_simple);
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return 0;
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}
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return 1;
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}
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void
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apply_xline(struct Client *source_p, const char *name, const char *reason, int temp_time)
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{
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struct ConfItem *aconf;
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aconf = make_conf();
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aconf->status = CONF_XLINE;
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if(strstr(name, "\\s"))
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{
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char *tmp = LOCAL_COPY(name);
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char *orig = tmp;
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char *new = tmp;
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while(*orig)
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{
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if(*orig == '\\' && *(orig + 1) != '\0')
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{
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if(*(orig + 1) == 's')
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{
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*new++ = ' ';
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orig += 2;
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}
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/* otherwise skip that and the escaped
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* character after it, so we dont mistake
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* \\s as \s --fl
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*/
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else
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{
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*new++ = *orig++;
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*new++ = *orig++;
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}
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}
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else
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*new++ = *orig++;
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}
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*new = '\0';
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aconf->name = rb_strdup(tmp);
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}
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else
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aconf->name = rb_strdup(name);
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aconf->passwd = rb_strdup(reason);
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collapse(aconf->name);
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if(temp_time > 0)
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{
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aconf->hold = rb_current_time() + temp_time;
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
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"%s added temporary %d min. X-Line for [%s] [%s]",
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get_oper_name(source_p), temp_time / 60,
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aconf->name, reason);
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ilog(L_KLINE, "X %s %d %s %s",
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get_oper_name(source_p), temp_time / 60, name, reason);
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sendto_one_notice(source_p, ":Added temporary %d min. X-Line [%s]",
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temp_time / 60, aconf->name);
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}
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else
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{
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sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s added X-Line for [%s] [%s]",
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get_oper_name(source_p), aconf->name, aconf->passwd);
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sendto_one_notice(source_p, ":Added X-Line for [%s] [%s]",
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aconf->name, aconf->passwd);
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bandb_add(BANDB_XLINE, source_p, aconf->name, NULL, aconf->passwd, NULL, 0);
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ilog(L_KLINE, "X %s 0 %s %s", get_oper_name(source_p), name, aconf->passwd);
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}
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rb_dlinkAddAlloc(aconf, &xline_conf_list);
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check_xlines();
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}
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static void
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propagate_xline(struct Client *source_p, const char *target,
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int temp_time, const char *name, const char *type, const char *reason)
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{
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if(!temp_time)
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{
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sendto_match_servs(source_p, target, CAP_CLUSTER, NOCAPS,
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"XLINE %s %s %s :%s", target, name, type, reason);
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sendto_match_servs(source_p, target, CAP_ENCAP, CAP_CLUSTER,
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"ENCAP %s XLINE %d %s 2 :%s", target, temp_time, name, reason);
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}
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else
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sendto_match_servs(source_p, target, CAP_ENCAP, NOCAPS,
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"ENCAP %s XLINE %d %s %s :%s",
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target, temp_time, name, type, reason);
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}
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static void
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cluster_xline(struct Client *source_p, int temp_time, const char *name, const char *reason)
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{
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struct remote_conf *shared_p;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, cluster_conf_list.head)
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{
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shared_p = ptr->data;
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/* old protocol cant handle temps, and we dont really want
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* to convert them to perm.. --fl
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*/
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if(!temp_time)
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{
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if(!(shared_p->flags & SHARED_PXLINE))
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continue;
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sendto_match_servs(source_p, shared_p->server, CAP_CLUSTER, NOCAPS,
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"XLINE %s %s 2 :%s", shared_p->server, name, reason);
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sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, CAP_CLUSTER,
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"ENCAP %s XLINE 0 %s 2 :%s",
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shared_p->server, name, reason);
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}
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else if(shared_p->flags & SHARED_TXLINE)
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sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, NOCAPS,
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"ENCAP %s XLINE %d %s 2 :%s",
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shared_p->server, temp_time, name, reason);
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}
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}
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/* mo_unxline()
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*
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* parv[1] - thing to unxline
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*/
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static int
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mo_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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if(!IsOperXline(source_p))
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{
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sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "xline");
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return 0;
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}
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if(parc == 4 && !(irccmp(parv[2], "ON")))
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{
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if(!IsOperRemoteBan(source_p))
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{
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sendto_one(source_p, form_str(ERR_NOPRIVS),
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me.name, source_p->name, "remoteban");
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return 0;
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}
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propagate_generic(source_p, "UNXLINE", parv[3], CAP_CLUSTER, "%s", parv[1]);
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if(match(parv[3], me.name) == 0)
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return 0;
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}
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else if(rb_dlink_list_length(&cluster_conf_list))
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cluster_generic(source_p, "UNXLINE", SHARED_UNXLINE, CAP_CLUSTER, "%s", parv[1]);
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remove_xline(source_p, parv[1]);
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return 0;
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}
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/* ms_unxline()
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*
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* handles a remote unxline
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*/
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static int
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ms_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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/* parv[0] parv[1] parv[2]
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* oper target server gecos
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*/
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propagate_generic(source_p, "UNXLINE", parv[1], CAP_CLUSTER, "%s", parv[2]);
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if(!match(parv[1], me.name))
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return 0;
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if(!IsPerson(source_p))
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return 0;
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handle_remote_unxline(source_p, parv[2]);
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return 0;
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}
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static int
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me_unxline(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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/* name */
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if(!IsPerson(source_p))
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return 0;
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handle_remote_unxline(source_p, parv[1]);
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return 0;
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}
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static void
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handle_remote_unxline(struct Client *source_p, const char *name)
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{
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if(!find_shared_conf(source_p->username, source_p->host,
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source_p->servptr->name, SHARED_UNXLINE))
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return;
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remove_xline(source_p, name);
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return;
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}
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static void
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remove_xline(struct Client *source_p, const char *name)
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{
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struct ConfItem *aconf;
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rb_dlink_node *ptr;
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RB_DLINK_FOREACH(ptr, xline_conf_list.head)
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{
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aconf = ptr->data;
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if(!irccmp(aconf->name, name))
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{
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if(!aconf->hold)
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{
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bandb_del(BANDB_XLINE, aconf->host, NULL);
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sendto_one_notice(source_p, ":X-Line for [%s] is removed", aconf->host);
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
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"%s has removed the X-Line for: [%s]",
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get_oper_name(source_p), aconf->host);
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ilog(L_KLINE, "UX %s %s", get_oper_name(source_p), aconf->host);
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}
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else
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{
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sendto_one_notice(source_p, ":X-Line for [%s] is removed", name);
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sendto_realops_snomask(SNO_GENERAL, L_ALL,
|
|
"%s has removed the temporary X-Line for: [%s]",
|
|
get_oper_name(source_p), name);
|
|
ilog(L_KLINE, "UX %s %s", get_oper_name(source_p), name);
|
|
}
|
|
|
|
remove_reject_mask(aconf->name, NULL);
|
|
free_conf(aconf);
|
|
rb_dlinkDestroy(ptr, &xline_conf_list);
|
|
return;
|
|
}
|
|
}
|
|
|
|
sendto_one_notice(source_p, ":No X-Line for %s", name);
|
|
|
|
return;
|
|
}
|