[solanum.git] / modules / m_xline.c

/* modules/m_xline.c
 *
 *  Copyright (C) 2002-2003 Lee Hardy <lee@leeh.co.uk>
 *  Copyright (C) 2002-2005 ircd-ratbox development team
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * 1.Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * 2.Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * 3.The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "stdinc.h"
#include "send.h"
#include "channel.h"
#include "client.h"
#include "defaults.h"
#include "class.h"
#include "ircd.h"
#include "numeric.h"
#include "logger.h"
#include "s_serv.h"
#include "whowas.h"
#include "match.h"
#include "hash.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "s_conf.h"
#include "s_newconf.h"
#include "reject.h"
#include "bandbi.h"
#include "operhash.h"

static const char xline_desc[] =
	"Provides management of GECOS bans via (UN)XLINE command";

static void mo_xline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
static void ms_xline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
static void me_xline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
static void mo_unxline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc,
		      const char *parv[]);
static void ms_unxline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc,
		      const char *parv[]);
static void me_unxline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc,
		      const char *parv[]);

static bool valid_xline(struct Client *, const char *, const char *);
static void apply_xline(struct Client *client_p, const char *name,
			const char *reason, int temp_time, bool propagated);
static void propagate_xline(struct Client *source_p, const char *target,
			    int temp_time, const char *name, const char *type, const char *reason);
static void cluster_xline(struct Client *source_p, int temp_time,
			  const char *name, const char *reason);

static void handle_remote_xline(struct Client *source_p, int temp_time,
				const char *name, const char *reason);
static void handle_remote_unxline(struct Client *source_p, const char *name);
static void remove_xline(struct Client *source_p, const char *name,
			 bool propagated);

struct Message xline_msgtab = {
	"XLINE", 0, 0, 0, 0,
	{mg_unreg, mg_not_oper, {ms_xline, 5}, {ms_xline, 5}, {me_xline, 5}, {mo_xline, 3}}
};

struct Message unxline_msgtab = {
	"UNXLINE", 0, 0, 0, 0,
	{mg_unreg, mg_not_oper, {ms_unxline, 3}, {ms_unxline, 3}, {me_unxline, 2}, {mo_unxline, 2}}
};

mapi_clist_av1 xline_clist[] = { &xline_msgtab, &unxline_msgtab, NULL };

DECLARE_MODULE_AV2(xline, NULL, NULL, xline_clist, NULL, NULL, NULL, NULL, xline_desc);

/* m_xline()
 *
 * parv[1] - thing to xline
 * parv[2] - optional type/reason
 * parv[3] - reason
 */
static void
mo_xline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	struct ConfItem *aconf;
	const char *name;
	const char *reason;
	const char *target_server = NULL;
	int temp_time;
	int loc = 1;
	bool propagated = ConfigFileEntry.use_propagated_bans;

	if(!IsOperXline(source_p))
	{
		sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "xline");
		return;
	}

	if((temp_time = valid_temp_time(parv[loc])) >= 0)
		loc++;
	/* we just set temp_time to -1! */
	else
		temp_time = 0;

	name = parv[loc];
	loc++;

	/* XLINE <gecos> ON <server> :<reason> */
	if(parc >= loc + 2 && !irccmp(parv[loc], "ON"))
	{
		if(!IsOperRemoteBan(source_p))
		{
			sendto_one(source_p, form_str(ERR_NOPRIVS),
				   me.name, source_p->name, "remoteban");
			return;
		}

		target_server = parv[loc + 1];
		loc += 2;
	}

	if(parc <= loc || EmptyString(parv[loc]))
	{
		sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
			   me.name, source_p->name, "XLINE");
		return;
	}

	reason = parv[loc];

	if(target_server != NULL)
	{
		propagate_xline(source_p, target_server, temp_time, name, "2", reason);

		if(!match(target_server, me.name))
			return;

		/* Set as local-only. */
		propagated = false;
	}
	else if(!propagated && rb_dlink_list_length(&cluster_conf_list) > 0)
		cluster_xline(source_p, temp_time, name, reason);

	if((aconf = find_xline_mask(name)) != NULL)
	{
		sendto_one(source_p, ":%s NOTICE %s :[%s] already X-Lined by [%s] - %s",
			   me.name, source_p->name, name, aconf->host, aconf->passwd);
		return;
	}

	if(!valid_xline(source_p, name, reason))
		return;

	if(propagated && temp_time == 0)
	{
		sendto_one_notice(source_p, ":Cannot set a permanent global ban");
		return;
	}

	apply_xline(source_p, name, reason, temp_time, propagated);
}

/* ms_xline()
 *
 * handles a remote xline
 */
static void
ms_xline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	/* parv[0]  parv[1]      parv[2]  parv[3]  parv[4]
	 * oper     target serv  xline    type     reason
	 */
	propagate_xline(source_p, parv[1], 0, parv[2], parv[3], parv[4]);

	if(!IsPerson(source_p))
		return;

	/* destined for me? */
	if(!match(parv[1], me.name))
		return;

	handle_remote_xline(source_p, 0, parv[2], parv[4]);
}

static void
me_xline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	/* time name type :reason */
	if(!IsPerson(source_p))
		return;

	handle_remote_xline(source_p, atoi(parv[1]), parv[2], parv[4]);
}

static void
handle_remote_xline(struct Client *source_p, int temp_time, const char *name, const char *reason)
{
	struct ConfItem *aconf;

	if(!find_shared_conf(source_p->username, source_p->host,
			     source_p->servptr->name,
			     (temp_time > 0) ? SHARED_TXLINE : SHARED_PXLINE))
		return;

	if(!valid_xline(source_p, name, reason))
		return;

	/* already xlined */
	if((aconf = find_xline_mask(name)) != NULL)
	{
		sendto_one_notice(source_p, ":[%s] already X-Lined by [%s] - %s", name, aconf->host,
				  aconf->passwd);
		return;
	}

	apply_xline(source_p, name, reason, temp_time, false);
}

/* valid_xline()
 *
 * inputs	- client xlining, gecos, reason and whether to warn
 * outputs	-
 * side effects - checks the xline for validity, erroring if needed
 */
static bool
valid_xline(struct Client *source_p, const char *gecos, const char *reason)
{
	if(EmptyString(reason))
	{
		sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
			   get_id(&me, source_p), get_id(source_p, source_p), "XLINE");
		return false;
	}

	if(!valid_wild_card_simple(gecos))
	{
		sendto_one_notice(source_p,
				  ":Please include at least %d non-wildcard "
				  "characters with the xline",
				  ConfigFileEntry.min_nonwildcard_simple);
		return false;
	}

	return true;
}

void
apply_xline(struct Client *source_p, const char *name, const char *reason, int temp_time, bool propagated)
{
	struct ConfItem *aconf;

	aconf = make_conf();
	aconf->status = CONF_XLINE;
	aconf->created = rb_current_time();
	aconf->host = rb_strdup(name);
	aconf->passwd = rb_strdup(reason);
	collapse(aconf->host);

	aconf->info.oper = operhash_add(get_oper_name(source_p));

	if(propagated)
	{
		aconf->flags |= CONF_FLAGS_MYOPER | CONF_FLAGS_TEMPORARY;
		aconf->hold = rb_current_time() + temp_time;
		aconf->lifetime = aconf->hold;

		replace_old_ban(aconf);
		rb_dlinkAddAlloc(aconf, &prop_bans);

		sendto_realops_snomask(SNO_GENERAL, L_ALL,
				       "%s added global %d min. X-Line for [%s] [%s]",
				       get_oper_name(source_p), temp_time / 60,
				       aconf->host, reason);
		ilog(L_KLINE, "X %s %d %s %s",
		     get_oper_name(source_p), temp_time / 60, name, reason);
		sendto_one_notice(source_p, ":Added global %d min. X-Line [%s]",
				  temp_time / 60, aconf->host);
		sendto_server(NULL, NULL, CAP_BAN|CAP_TS6, NOCAPS,
				":%s BAN X * %s %lu %d %d * :%s",
				source_p->id, aconf->host,
				(unsigned long)aconf->created,
				(int)(aconf->hold - aconf->created),
				(int)(aconf->lifetime - aconf->created),
				reason);
	}
	else if(temp_time > 0)
	{
		aconf->hold = rb_current_time() + temp_time;

		sendto_realops_snomask(SNO_GENERAL, L_ALL,
				       "%s added temporary %d min. X-Line for [%s] [%s]",
				       get_oper_name(source_p), temp_time / 60,
				       aconf->host, reason);
		ilog(L_KLINE, "X %s %d %s %s",
		     get_oper_name(source_p), temp_time / 60, name, reason);
		sendto_one_notice(source_p, ":Added temporary %d min. X-Line [%s]",
				  temp_time / 60, aconf->host);
	}
	else
	{
		sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s added X-Line for [%s] [%s]",
				       get_oper_name(source_p), aconf->host, aconf->passwd);
		sendto_one_notice(source_p, ":Added X-Line for [%s] [%s]",
				  aconf->host, aconf->passwd);

		bandb_add(BANDB_XLINE, source_p, aconf->host, NULL, aconf->passwd, NULL, 0);
		ilog(L_KLINE, "X %s 0 %s %s", get_oper_name(source_p), name, aconf->passwd);
	}

	rb_dlinkAddAlloc(aconf, &xline_conf_list);
	check_xlines();
}

static void
propagate_xline(struct Client *source_p, const char *target,
		int temp_time, const char *name, const char *type, const char *reason)
{
	if(!temp_time)
	{
		sendto_match_servs(source_p, target, CAP_CLUSTER, NOCAPS,
				   "XLINE %s %s %s :%s", target, name, type, reason);
		sendto_match_servs(source_p, target, CAP_ENCAP, CAP_CLUSTER,
				   "ENCAP %s XLINE %d %s 2 :%s", target, temp_time, name, reason);
	}
	else
		sendto_match_servs(source_p, target, CAP_ENCAP, NOCAPS,
				   "ENCAP %s XLINE %d %s %s :%s",
				   target, temp_time, name, type, reason);
}

static void
cluster_xline(struct Client *source_p, int temp_time, const char *name, const char *reason)
{
	struct remote_conf *shared_p;
	rb_dlink_node *ptr;

	RB_DLINK_FOREACH(ptr, cluster_conf_list.head)
	{
		shared_p = ptr->data;

		/* old protocol cant handle temps, and we dont really want
		 * to convert them to perm.. --fl
		 */
		if(!temp_time)
		{
			if(!(shared_p->flags & SHARED_PXLINE))
				continue;

			sendto_match_servs(source_p, shared_p->server, CAP_CLUSTER, NOCAPS,
					   "XLINE %s %s 2 :%s", shared_p->server, name, reason);
			sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, CAP_CLUSTER,
					   "ENCAP %s XLINE 0 %s 2 :%s",
					   shared_p->server, name, reason);
		}
		else if(shared_p->flags & SHARED_TXLINE)
			sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, NOCAPS,
					   "ENCAP %s XLINE %d %s 2 :%s",
					   shared_p->server, temp_time, name, reason);
	}
}

/* mo_unxline()
 *
 * parv[1] - thing to unxline
 */
static void
mo_unxline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	bool propagated = true;

	if(!IsOperXline(source_p))
	{
		sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "xline");
		return;
	}

	if(parc == 4 && !(irccmp(parv[2], "ON")))
	{
		if(!IsOperRemoteBan(source_p))
		{
			sendto_one(source_p, form_str(ERR_NOPRIVS),
				   me.name, source_p->name, "remoteban");
			return;
		}

		propagate_generic(source_p, "UNXLINE", parv[3], CAP_CLUSTER, "%s", parv[1]);

		if(match(parv[3], me.name) == 0)
			return;

		propagated = false;
	}
	/* cluster{} moved to remove_xline */

	remove_xline(source_p, parv[1], propagated);
}

/* ms_unxline()
 *
 * handles a remote unxline
 */
static void
ms_unxline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	/* parv[0]  parv[1]        parv[2]
	 * oper     target server  gecos
	 */
	propagate_generic(source_p, "UNXLINE", parv[1], CAP_CLUSTER, "%s", parv[2]);

	if(!match(parv[1], me.name))
		return;

	if(!IsPerson(source_p))
		return;

	handle_remote_unxline(source_p, parv[2]);
}

static void
me_unxline(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	/* name */
	if(!IsPerson(source_p))
		return;

	handle_remote_unxline(source_p, parv[1]);
}

static void
handle_remote_unxline(struct Client *source_p, const char *name)
{
	if(!find_shared_conf(source_p->username, source_p->host,
			     source_p->servptr->name, SHARED_UNXLINE))
		return;

	remove_xline(source_p, name, false);
}

static void
remove_xline(struct Client *source_p, const char *name, bool propagated)
{
	struct ConfItem *aconf;
	rb_dlink_node *ptr;
	time_t now;

	RB_DLINK_FOREACH(ptr, xline_conf_list.head)
	{
		aconf = ptr->data;

		if(!irccmp(aconf->host, name))
		{
			if(aconf->lifetime)
			{
				if(!propagated)
				{
					sendto_one_notice(source_p, ":Cannot remove global X-Line %s on specific servers", name);
					return;
				}
				ptr = rb_dlinkFind(aconf, &prop_bans);
				if(ptr == NULL)
					return;
				sendto_one_notice(source_p, ":X-Line for [%s] is removed", name);
				sendto_realops_snomask(SNO_GENERAL, L_ALL,
						       "%s has removed the global X-Line for: [%s]",
						       get_oper_name(source_p), name);
				ilog(L_KLINE, "UX %s %s", get_oper_name(source_p), name);
				now = rb_current_time();
				if(aconf->created < now)
					aconf->created = now;
				else
					aconf->created++;
				aconf->hold = aconf->created;
				operhash_delete(aconf->info.oper);
				aconf->info.oper = operhash_add(get_oper_name(source_p));
				aconf->flags |= CONF_FLAGS_MYOPER | CONF_FLAGS_TEMPORARY;
				sendto_server(NULL, NULL, CAP_BAN|CAP_TS6, NOCAPS,
						":%s BAN X * %s %lu %d %d * :*",
						source_p->id, aconf->host,
						(unsigned long)aconf->created,
						0,
						(int)(aconf->lifetime - aconf->created));
				remove_reject_mask(aconf->host, NULL);
				deactivate_conf(aconf, ptr, now);
				return;
			}
			else if(propagated && rb_dlink_list_length(&cluster_conf_list))
				cluster_generic(source_p, "UNXLINE", SHARED_UNXLINE, CAP_CLUSTER, "%s", name);
			if(!aconf->hold)
			{
				bandb_del(BANDB_XLINE, aconf->host, NULL);

				sendto_one_notice(source_p, ":X-Line for [%s] is removed", aconf->host);
				sendto_realops_snomask(SNO_GENERAL, L_ALL,
						       "%s has removed the X-Line for: [%s]",
						       get_oper_name(source_p), aconf->host);
				ilog(L_KLINE, "UX %s %s", get_oper_name(source_p), aconf->host);
			}
			else
			{
				sendto_one_notice(source_p, ":X-Line for [%s] is removed", name);
				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->host, NULL);
			free_conf(aconf);
			rb_dlinkDestroy(ptr, &xline_conf_list);
			return;
		}
	}

	if(propagated && rb_dlink_list_length(&cluster_conf_list))
		cluster_generic(source_p, "UNXLINE", SHARED_UNXLINE, CAP_CLUSTER, "%s", name);

	sendto_one_notice(source_p, ":No X-Line for %s", name);
}
Commit	Line	Data
212380e3	1	/* modules/m_xline.c
55abcbb2	2	*
212380e3 AC	3	* Copyright (C) 2002-2003 Lee Hardy <lee@leeh.co.uk>
	4	* Copyright (C) 2002-2005 ircd-ratbox development team
	5	*
	6	* Redistribution and use in source and binary forms, with or without
	7	* modification, are permitted provided that the following conditions are
	8	* met:
	9	*
	10	* 1.Redistributions of source code must retain the above copyright notice,
	11	* this list of conditions and the following disclaimer.
	12	* 2.Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in the
	14	* documentation and/or other materials provided with the distribution.
	15	* 3.The name of the author may not be used to endorse or promote products
	16	* derived from this software without specific prior written permission.
	17	*
	18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
	19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	20	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	21	* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
	22	* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	23	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
	24	* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	25	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
	26	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
	27	* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	28	* POSSIBILITY OF SUCH DAMAGE.
212380e3 AC	29	*/
	30
	31	#include "stdinc.h"
212380e3 AC	32	#include "send.h"
	33	#include "channel.h"
	34	#include "client.h"
9b8e9eb3	35	#include "defaults.h"
212380e3 AC	36	#include "class.h"
	37	#include "ircd.h"
	38	#include "numeric.h"
4016731b	39	#include "logger.h"
212380e3 AC	40	#include "s_serv.h"
212380e3 AC	41	#include "whowas.h"
4562c604	42	#include "match.h"
212380e3 AC	43	#include "hash.h"
	44	#include "msg.h"
	45	#include "parse.h"
	46	#include "modules.h"
	47	#include "s_conf.h"
	48	#include "s_newconf.h"
35f6f850	49	#include "reject.h"
8bbeb278	50	#include "bandbi.h"
27f616dd	51	#include "operhash.h"
212380e3	52
eeabf33a EM	53	static const char xline_desc[] =
	54	"Provides management of GECOS bans via (UN)XLINE command";
	55
3c7d6fcc EM	56	static void mo_xline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[]);
	57	static void ms_xline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[]);
	58	static void me_xline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[]);
	59	static void mo_unxline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client *source_p, int parc,
8bbeb278	60	const char *parv[]);
3c7d6fcc	61	static void ms_unxline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client *source_p, int parc,
8bbeb278	62	const char *parv[]);
3c7d6fcc	63	static void me_unxline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client *source_p, int parc,
8bbeb278	64	const char *parv[]);
212380e3	65
3c7d6fcc	66	static bool valid_xline(struct Client , const char , const char *);
8bbeb278	67	static void apply_xline(struct Client client_p, const char name,
f66f0baa	68	const char *reason, int temp_time, bool propagated);
212380e3	69	static void propagate_xline(struct Client source_p, const char target,
8bbeb278	70	int temp_time, const char name, const char type, const char *reason);
212380e3	71	static void cluster_xline(struct Client *source_p, int temp_time,
8bbeb278	72	const char name, const char reason);
212380e3 AC	73
	74	static void handle_remote_xline(struct Client *source_p, int temp_time,
	75	const char name, const char reason);
	76	static void handle_remote_unxline(struct Client source_p, const char name);
3cbbfb25	77	static void remove_xline(struct Client source_p, const char name,
f66f0baa	78	bool propagated);
212380e3	79
eeabf33a EM	80	struct Message xline_msgtab = {
	81	"XLINE", 0, 0, 0, 0,
	82	{mg_unreg, mg_not_oper, {ms_xline, 5}, {ms_xline, 5}, {me_xline, 5}, {mo_xline, 3}}
	83	};
	84
	85	struct Message unxline_msgtab = {
	86	"UNXLINE", 0, 0, 0, 0,
	87	{mg_unreg, mg_not_oper, {ms_unxline, 3}, {ms_unxline, 3}, {me_unxline, 2}, {mo_unxline, 2}}
	88	};
	89
	90	mapi_clist_av1 xline_clist[] = { &xline_msgtab, &unxline_msgtab, NULL };
	91
	92	DECLARE_MODULE_AV2(xline, NULL, NULL, xline_clist, NULL, NULL, NULL, NULL, xline_desc);
212380e3 AC	93
	94	/* m_xline()
	95	*
	96	* parv[1] - thing to xline
	97	* parv[2] - optional type/reason
	98	* parv[3] - reason
	99	*/
3c7d6fcc	100	static void
428ca87b	101	mo_xline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3 AC	102	{
	103	struct ConfItem *aconf;
	104	const char *name;
	105	const char *reason;
	106	const char *target_server = NULL;
	107	int temp_time;
	108	int loc = 1;
f66f0baa	109	bool propagated = ConfigFileEntry.use_propagated_bans;
212380e3 AC	110
	111	if(!IsOperXline(source_p))
	112	{
8bbeb278	113	sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "xline");
3c7d6fcc	114	return;
212380e3 AC	115	}
	116
	117	if((temp_time = valid_temp_time(parv[loc])) >= 0)
	118	loc++;
	119	/* we just set temp_time to -1! */
	120	else
	121	temp_time = 0;
	122
	123	name = parv[loc];
	124	loc++;
	125
	126	/* XLINE <gecos> ON <server> :<reason> */
8bbeb278	127	if(parc >= loc + 2 && !irccmp(parv[loc], "ON"))
212380e3 AC	128	{
	129	if(!IsOperRemoteBan(source_p))
	130	{
	131	sendto_one(source_p, form_str(ERR_NOPRIVS),
8bbeb278	132	me.name, source_p->name, "remoteban");
3c7d6fcc	133	return;
212380e3 AC	134	}
212380e3 AC	135
8bbeb278	136	target_server = parv[loc + 1];
212380e3 AC	137	loc += 2;
	138	}
	139
	140	if(parc <= loc \|\| EmptyString(parv[loc]))
	141	{
	142	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
8bbeb278	143	me.name, source_p->name, "XLINE");
3c7d6fcc	144	return;
212380e3 AC	145	}
	146
	147	reason = parv[loc];
	148
	149	if(target_server != NULL)
	150	{
8bbeb278	151	propagate_xline(source_p, target_server, temp_time, name, "2", reason);
212380e3 AC	152
212380e3 AC	153	if(!match(target_server, me.name))
3c7d6fcc	154	return;
3cbbfb25 JT	155
3cbbfb25 JT	156	/* Set as local-only. */
f66f0baa	157	propagated = false;
212380e3	158	}
3cbbfb25	159	else if(!propagated && rb_dlink_list_length(&cluster_conf_list) > 0)
8bbeb278	160	cluster_xline(source_p, temp_time, name, reason);
212380e3	161
8bbeb278	162	if((aconf = find_xline_mask(name)) != NULL)
212380e3 AC	163	{
212380e3 AC	164	sendto_one(source_p, ":%s NOTICE %s :[%s] already X-Lined by [%s] - %s",
23959371	165	me.name, source_p->name, name, aconf->host, aconf->passwd);
3c7d6fcc	166	return;
212380e3 AC	167	}
212380e3 AC	168
8bbeb278	169	if(!valid_xline(source_p, name, reason))
3c7d6fcc	170	return;
212380e3	171
3cbbfb25 JT	172	if(propagated && temp_time == 0)
	173	{
	174	sendto_one_notice(source_p, ":Cannot set a permanent global ban");
3c7d6fcc	175	return;
3cbbfb25 JT	176	}
	177
	178	apply_xline(source_p, name, reason, temp_time, propagated);
212380e3 AC	179	}
	180
	181	/* ms_xline()
	182	*
	183	* handles a remote xline
	184	*/
3c7d6fcc	185	static void
428ca87b	186	ms_xline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3	187	{
8bbeb278 AC	188	/* parv[0] parv[1] parv[2] parv[3] parv[4]
8bbeb278 AC	189	* oper target serv xline type reason
212380e3 AC	190	*/
	191	propagate_xline(source_p, parv[1], 0, parv[2], parv[3], parv[4]);
	192
	193	if(!IsPerson(source_p))
3c7d6fcc	194	return;
212380e3 AC	195
	196	/* destined for me? */
	197	if(!match(parv[1], me.name))
3c7d6fcc	198	return;
212380e3 AC	199
212380e3 AC	200	handle_remote_xline(source_p, 0, parv[2], parv[4]);
212380e3 AC	201	}
212380e3 AC	202
3c7d6fcc	203	static void
428ca87b	204	me_xline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3 AC	205	{
	206	/* time name type :reason */
	207	if(!IsPerson(source_p))
3c7d6fcc	208	return;
212380e3 AC	209
212380e3 AC	210	handle_remote_xline(source_p, atoi(parv[1]), parv[2], parv[4]);
212380e3 AC	211	}
	212
	213	static void
8bbeb278	214	handle_remote_xline(struct Client source_p, int temp_time, const char name, const char *reason)
212380e3 AC	215	{
	216	struct ConfItem *aconf;
	217
	218	if(!find_shared_conf(source_p->username, source_p->host,
8bbeb278 AC	219	source_p->servptr->name,
8bbeb278 AC	220	(temp_time > 0) ? SHARED_TXLINE : SHARED_PXLINE))
212380e3 AC	221	return;
212380e3 AC	222
8bbeb278	223	if(!valid_xline(source_p, name, reason))
212380e3 AC	224	return;
	225
	226	/* already xlined */
0fdb2570	227	if((aconf = find_xline_mask(name)) != NULL)
212380e3	228	{
23959371	229	sendto_one_notice(source_p, ":[%s] already X-Lined by [%s] - %s", name, aconf->host,
8bbeb278	230	aconf->passwd);
212380e3 AC	231	return;
	232	}
	233
f66f0baa	234	apply_xline(source_p, name, reason, temp_time, false);
212380e3 AC	235	}
	236
	237	/* valid_xline()
	238	*
8bbeb278	239	* inputs - client xlining, gecos, reason and whether to warn
212380e3 AC	240	* outputs -
	241	* side effects - checks the xline for validity, erroring if needed
	242	*/
3c7d6fcc	243	static bool
8bbeb278	244	valid_xline(struct Client source_p, const char gecos, const char *reason)
212380e3 AC	245	{
	246	if(EmptyString(reason))
	247	{
	248	sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS),
8bbeb278	249	get_id(&me, source_p), get_id(source_p, source_p), "XLINE");
3c7d6fcc	250	return false;
cc169c94 JT	251	}
cc169c94 JT	252
212380e3 AC	253	if(!valid_wild_card_simple(gecos))
	254	{
	255	sendto_one_notice(source_p,
	256	":Please include at least %d non-wildcard "
	257	"characters with the xline",
	258	ConfigFileEntry.min_nonwildcard_simple);
3c7d6fcc	259	return false;
212380e3 AC	260	}
212380e3 AC	261
3c7d6fcc	262	return true;
212380e3 AC	263	}
	264
	265	void
f66f0baa	266	apply_xline(struct Client source_p, const char name, const char *reason, int temp_time, bool propagated)
212380e3 AC	267	{
	268	struct ConfItem *aconf;
	269
	270	aconf = make_conf();
	271	aconf->status = CONF_XLINE;
b52c2949	272	aconf->created = rb_current_time();
4418166c	273	aconf->host = rb_strdup(name);
8bbeb278	274	aconf->passwd = rb_strdup(reason);
23959371	275	collapse(aconf->host);
212380e3	276
27f616dd JT	277	aconf->info.oper = operhash_add(get_oper_name(source_p));
27f616dd JT	278
3cbbfb25 JT	279	if(propagated)
	280	{
	281	aconf->flags \|= CONF_FLAGS_MYOPER \| CONF_FLAGS_TEMPORARY;
	282	aconf->hold = rb_current_time() + temp_time;
	283	aconf->lifetime = aconf->hold;
	284
	285	replace_old_ban(aconf);
	286	rb_dlinkAddAlloc(aconf, &prop_bans);
	287
	288	sendto_realops_snomask(SNO_GENERAL, L_ALL,
	289	"%s added global %d min. X-Line for [%s] [%s]",
	290	get_oper_name(source_p), temp_time / 60,
	291	aconf->host, reason);
	292	ilog(L_KLINE, "X %s %d %s %s",
	293	get_oper_name(source_p), temp_time / 60, name, reason);
	294	sendto_one_notice(source_p, ":Added global %d min. X-Line [%s]",
	295	temp_time / 60, aconf->host);
	296	sendto_server(NULL, NULL, CAP_BAN\|CAP_TS6, NOCAPS,
	297	":%s BAN X * %s %lu %d %d * :%s",
	298	source_p->id, aconf->host,
	299	(unsigned long)aconf->created,
	300	(int)(aconf->hold - aconf->created),
	301	(int)(aconf->lifetime - aconf->created),
	302	reason);
	303	}
	304	else if(temp_time > 0)
212380e3	305	{
8bbeb278	306	aconf->hold = rb_current_time() + temp_time;
212380e3	307
8bbeb278 AC	308	sendto_realops_snomask(SNO_GENERAL, L_ALL,
	309	"%s added temporary %d min. X-Line for [%s] [%s]",
	310	get_oper_name(source_p), temp_time / 60,
23959371	311	aconf->host, reason);
8bbeb278 AC	312	ilog(L_KLINE, "X %s %d %s %s",
	313	get_oper_name(source_p), temp_time / 60, name, reason);
	314	sendto_one_notice(source_p, ":Added temporary %d min. X-Line [%s]",
23959371	315	temp_time / 60, aconf->host);
8bbeb278 AC	316	}
8bbeb278 AC	317	else
212380e3	318	{
8bbeb278	319	sendto_realops_snomask(SNO_GENERAL, L_ALL, "%s added X-Line for [%s] [%s]",
23959371	320	get_oper_name(source_p), aconf->host, aconf->passwd);
8bbeb278	321	sendto_one_notice(source_p, ":Added X-Line for [%s] [%s]",
23959371	322	aconf->host, aconf->passwd);
8bbeb278	323
23959371	324	bandb_add(BANDB_XLINE, source_p, aconf->host, NULL, aconf->passwd, NULL, 0);
f36d4fdd	325	ilog(L_KLINE, "X %s 0 %s %s", get_oper_name(source_p), name, aconf->passwd);
212380e3	326	}
8bbeb278 AC	327
	328	rb_dlinkAddAlloc(aconf, &xline_conf_list);
	329	check_xlines();
212380e3 AC	330	}
212380e3 AC	331
8bbeb278	332	static void
212380e3	333	propagate_xline(struct Client source_p, const char target,
8bbeb278	334	int temp_time, const char name, const char type, const char *reason)
212380e3 AC	335	{
	336	if(!temp_time)
	337	{
	338	sendto_match_servs(source_p, target, CAP_CLUSTER, NOCAPS,
8bbeb278	339	"XLINE %s %s %s :%s", target, name, type, reason);
212380e3	340	sendto_match_servs(source_p, target, CAP_ENCAP, CAP_CLUSTER,
8bbeb278	341	"ENCAP %s XLINE %d %s 2 :%s", target, temp_time, name, reason);
212380e3 AC	342	}
	343	else
	344	sendto_match_servs(source_p, target, CAP_ENCAP, NOCAPS,
8bbeb278 AC	345	"ENCAP %s XLINE %d %s %s :%s",
8bbeb278 AC	346	target, temp_time, name, type, reason);
212380e3	347	}
8bbeb278	348
212380e3	349	static void
8bbeb278	350	cluster_xline(struct Client source_p, int temp_time, const char name, const char *reason)
212380e3 AC	351	{
212380e3 AC	352	struct remote_conf *shared_p;
5b96d9a6	353	rb_dlink_node *ptr;
212380e3	354
5b96d9a6	355	RB_DLINK_FOREACH(ptr, cluster_conf_list.head)
212380e3 AC	356	{
	357	shared_p = ptr->data;
	358
	359	/* old protocol cant handle temps, and we dont really want
	360	* to convert them to perm.. --fl
	361	*/
	362	if(!temp_time)
	363	{
	364	if(!(shared_p->flags & SHARED_PXLINE))
	365	continue;
	366
	367	sendto_match_servs(source_p, shared_p->server, CAP_CLUSTER, NOCAPS,
8bbeb278	368	"XLINE %s %s 2 :%s", shared_p->server, name, reason);
212380e3	369	sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, CAP_CLUSTER,
8bbeb278 AC	370	"ENCAP %s XLINE 0 %s 2 :%s",
8bbeb278 AC	371	shared_p->server, name, reason);
212380e3 AC	372	}
	373	else if(shared_p->flags & SHARED_TXLINE)
	374	sendto_match_servs(source_p, shared_p->server, CAP_ENCAP, NOCAPS,
8bbeb278 AC	375	"ENCAP %s XLINE %d %s 2 :%s",
8bbeb278 AC	376	shared_p->server, temp_time, name, reason);
212380e3 AC	377	}
	378	}
	379
	380	/* mo_unxline()
	381	*
	382	* parv[1] - thing to unxline
	383	*/
3c7d6fcc	384	static void
428ca87b	385	mo_unxline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3	386	{
f66f0baa	387	bool propagated = true;
3cbbfb25	388
212380e3 AC	389	if(!IsOperXline(source_p))
212380e3 AC	390	{
8bbeb278	391	sendto_one(source_p, form_str(ERR_NOPRIVS), me.name, source_p->name, "xline");
3c7d6fcc	392	return;
212380e3 AC	393	}
	394
	395	if(parc == 4 && !(irccmp(parv[2], "ON")))
	396	{
	397	if(!IsOperRemoteBan(source_p))
	398	{
	399	sendto_one(source_p, form_str(ERR_NOPRIVS),
8bbeb278	400	me.name, source_p->name, "remoteban");
3c7d6fcc	401	return;
212380e3 AC	402	}
212380e3 AC	403
8bbeb278	404	propagate_generic(source_p, "UNXLINE", parv[3], CAP_CLUSTER, "%s", parv[1]);
212380e3 AC	405
212380e3 AC	406	if(match(parv[3], me.name) == 0)
3c7d6fcc	407	return;
3cbbfb25	408
f66f0baa	409	propagated = false;
212380e3	410	}
3cbbfb25	411	/* cluster{} moved to remove_xline */
212380e3	412
3cbbfb25	413	remove_xline(source_p, parv[1], propagated);
212380e3 AC	414	}
	415
	416	/* ms_unxline()
	417	*
	418	* handles a remote unxline
	419	*/
3c7d6fcc	420	static void
428ca87b	421	ms_unxline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3	422	{
8bbeb278 AC	423	/* parv[0] parv[1] parv[2]
8bbeb278 AC	424	* oper target server gecos
212380e3	425	*/
8bbeb278	426	propagate_generic(source_p, "UNXLINE", parv[1], CAP_CLUSTER, "%s", parv[2]);
212380e3 AC	427
212380e3 AC	428	if(!match(parv[1], me.name))
3c7d6fcc	429	return;
212380e3 AC	430
212380e3 AC	431	if(!IsPerson(source_p))
3c7d6fcc	432	return;
212380e3 AC	433
212380e3 AC	434	handle_remote_unxline(source_p, parv[2]);
212380e3 AC	435	}
212380e3 AC	436
3c7d6fcc	437	static void
428ca87b	438	me_unxline(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3 AC	439	{
	440	/* name */
	441	if(!IsPerson(source_p))
3c7d6fcc	442	return;
212380e3 AC	443
212380e3 AC	444	handle_remote_unxline(source_p, parv[1]);
212380e3 AC	445	}
	446
	447	static void
	448	handle_remote_unxline(struct Client source_p, const char name)
	449	{
	450	if(!find_shared_conf(source_p->username, source_p->host,
8bbeb278	451	source_p->servptr->name, SHARED_UNXLINE))
212380e3 AC	452	return;
212380e3 AC	453
f66f0baa	454	remove_xline(source_p, name, false);
212380e3 AC	455	}
212380e3 AC	456
60c96e64	457	static void
5c1dbc3c	458	remove_xline(struct Client source_p, const char name, bool propagated)
212380e3 AC	459	{
212380e3 AC	460	struct ConfItem *aconf;
5b96d9a6	461	rb_dlink_node *ptr;
483987a4	462	time_t now;
212380e3	463
5b96d9a6	464	RB_DLINK_FOREACH(ptr, xline_conf_list.head)
212380e3 AC	465	{
	466	aconf = ptr->data;
	467
23959371	468	if(!irccmp(aconf->host, name))
212380e3	469	{
3cbbfb25 JT	470	if(aconf->lifetime)
	471	{
	472	if(!propagated)
	473	{
	474	sendto_one_notice(source_p, ":Cannot remove global X-Line %s on specific servers", name);
	475	return;
	476	}
	477	ptr = rb_dlinkFind(aconf, &prop_bans);
	478	if(ptr == NULL)
	479	return;
	480	sendto_one_notice(source_p, ":X-Line for [%s] is removed", name);
	481	sendto_realops_snomask(SNO_GENERAL, L_ALL,
	482	"%s has removed the global X-Line for: [%s]",
	483	get_oper_name(source_p), name);
	484	ilog(L_KLINE, "UX %s %s", get_oper_name(source_p), name);
483987a4 JT	485	now = rb_current_time();
	486	if(aconf->created < now)
	487	aconf->created = now;
3cbbfb25 JT	488	else
	489	aconf->created++;
	490	aconf->hold = aconf->created;
	491	operhash_delete(aconf->info.oper);
	492	aconf->info.oper = operhash_add(get_oper_name(source_p));
	493	aconf->flags \|= CONF_FLAGS_MYOPER \| CONF_FLAGS_TEMPORARY;
	494	sendto_server(NULL, NULL, CAP_BAN\|CAP_TS6, NOCAPS,
	495	":%s BAN X * %s %lu %d %d * :*",
	496	source_p->id, aconf->host,
	497	(unsigned long)aconf->created,
	498	0,
	499	(int)(aconf->lifetime - aconf->created));
	500	remove_reject_mask(aconf->host, NULL);
483987a4	501	deactivate_conf(aconf, ptr, now);
3cbbfb25 JT	502	return;
3cbbfb25 JT	503	}
1b5d7c2e	504	else if(propagated && rb_dlink_list_length(&cluster_conf_list))
3cbbfb25	505	cluster_generic(source_p, "UNXLINE", SHARED_UNXLINE, CAP_CLUSTER, "%s", name);
8bbeb278	506	if(!aconf->hold)
5408b484	507	{
8bbeb278 AC	508	bandb_del(BANDB_XLINE, aconf->host, NULL);
	509
	510	sendto_one_notice(source_p, ":X-Line for [%s] is removed", aconf->host);
	511	sendto_realops_snomask(SNO_GENERAL, L_ALL,
	512	"%s has removed the X-Line for: [%s]",
	513	get_oper_name(source_p), aconf->host);
	514	ilog(L_KLINE, "UX %s %s", get_oper_name(source_p), aconf->host);
5408b484 JT	515	}
	516	else
	517	{
8bbeb278	518	sendto_one_notice(source_p, ":X-Line for [%s] is removed", name);
5408b484	519	sendto_realops_snomask(SNO_GENERAL, L_ALL,
8bbeb278 AC	520	"%s has removed the temporary X-Line for: [%s]",
	521	get_oper_name(source_p), name);
	522	ilog(L_KLINE, "UX %s %s", get_oper_name(source_p), name);
5408b484	523	}
8bbeb278	524
23959371	525	remove_reject_mask(aconf->host, NULL);
212380e3	526	free_conf(aconf);
555ac41f	527	rb_dlinkDestroy(ptr, &xline_conf_list);
60c96e64	528	return;
212380e3 AC	529	}
	530	}
	531
1b5d7c2e	532	if(propagated && rb_dlink_list_length(&cluster_conf_list))
3cbbfb25 JT	533	cluster_generic(source_p, "UNXLINE", SHARED_UNXLINE, CAP_CLUSTER, "%s", name);
3cbbfb25 JT	534
8bbeb278	535	sendto_one_notice(source_p, ":No X-Line for %s", name);
212380e3	536	}