[solanum.git] / modules / m_whois.c

/*
 *  ircd-ratbox: A slightly useful ircd.
 *  m_whois.c: Shows who a user is.
 *
 *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
 *  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 "client.h"
#include "hash.h"
#include "channel.h"
#include "hash.h"
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_user.h"
#include "s_serv.h"
#include "send.h"
#include "match.h"
#include "logger.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "hook.h"
#include "s_newconf.h"
#include "ratelimit.h"
#include "s_assert.h"

static const char whois_desc[] =
	"Provides the WHOIS command to display information about a user";

static void do_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[]);
static void single_whois(struct Client *source_p, struct Client *target_p, int operspy);

static void m_whois(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
static void ms_whois(struct MsgBuf *, struct Client *, struct Client *, int, const char **);

struct Message whois_msgtab = {
	"WHOIS", 0, 0, 0, 0,
	{mg_unreg, {m_whois, 2}, {ms_whois, 2}, mg_ignore, mg_ignore, {m_whois, 2}}
};

int doing_whois_hook;
int doing_whois_global_hook;
int doing_whois_channel_visibility_hook;
int doing_whois_show_idle_hook;

mapi_clist_av1 whois_clist[] = { &whois_msgtab, NULL };
mapi_hlist_av1 whois_hlist[] = {
	{ "doing_whois",			&doing_whois_hook },
	{ "doing_whois_global",			&doing_whois_global_hook },
	{ "doing_whois_channel_visibility",	&doing_whois_channel_visibility_hook },
	{ "doing_whois_show_idle",		&doing_whois_show_idle_hook },
	{ NULL, NULL }
};

DECLARE_MODULE_AV2(whois, NULL, NULL, whois_clist, whois_hlist, NULL, NULL, NULL, whois_desc);

/*
 * m_whois
 *      parv[1] = nickname masklist
 */
static void
m_whois(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	static time_t last_used = 0;

	if(parc > 2)
	{
		if(EmptyString(parv[2]))
		{
			sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
					me.name, source_p->name);
			return;
		}

		if(!IsOperGeneral(source_p))
		{
			/* seeing as this is going across servers, we should limit it */
			if((last_used + ConfigFileEntry.pace_wait_simple) > rb_current_time() || !ratelimit_client(source_p, 2))
			{
				sendto_one(source_p, form_str(RPL_LOAD2HI),
					   me.name, source_p->name, "WHOIS");
				sendto_one_numeric(source_p, RPL_ENDOFWHOIS,
						   form_str(RPL_ENDOFWHOIS), parv[2]);
				return;
			}
			else
				last_used = rb_current_time();
		}

		if(hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1, parc, parv) !=
		   HUNTED_ISME)
			return;

		parv[1] = parv[2];

	}
	do_whois(client_p, source_p, parc, parv);
}

/*
 * ms_whois
 *      parv[1] = server to reply
 *      parv[2] = nickname to whois
 */
static void
ms_whois(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	struct Client *target_p;

	/* note: early versions of ratbox allowed users to issue a remote
	 * whois with a blank parv[2], so we cannot treat it as a protocol
	 * violation. --anfl
	 */
	if(parc < 3 || EmptyString(parv[2]))
	{
		sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
				me.name, source_p->name);
		return;
	}

	/* check if parv[1] exists */
	if((target_p = find_client(parv[1])) == NULL)
	{
		sendto_one_numeric(source_p, ERR_NOSUCHSERVER,
				   form_str(ERR_NOSUCHSERVER),
				   IsDigit(parv[1][0]) ? "*" : parv[1]);
		return;
	}

	/* if parv[1] isnt my client, or me, someone else is supposed
	 * to be handling the request.. so send it to them
	 */
	if(!MyClient(target_p) && !IsMe(target_p))
	{
		sendto_one(target_p, ":%s WHOIS %s :%s",
			   get_id(source_p, target_p),
			   get_id(target_p, target_p), parv[2]);
		return;
	}

	/* ok, the target is either us, or a client on our server, so perform the whois
	 * but first, parv[1] == server to perform the whois on, parv[2] == person
	 * to whois, so make parv[1] = parv[2] so do_whois is ok -- fl_
	 */
	parv[1] = parv[2];
	do_whois(client_p, source_p, parc, parv);
}

/* do_whois
 *
 * inputs	- pointer to
 * output	-
 * side effects -
 */
static void
do_whois(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
{
	struct Client *target_p;
	char *nick;
	char *p = NULL;
	int operspy = 0;

	nick = LOCAL_COPY(parv[1]);
	if((p = strchr(nick, ',')))
		*p = '\0';

	if(IsOperSpy(source_p) && *nick == '!')
	{
		operspy = 1;
		nick++;
	}

	target_p = find_named_person(nick);
	if(target_p != NULL)
	{
		if(operspy)
		{
			char buffer[BUFSIZE];

			snprintf(buffer, sizeof(buffer), "%s!%s@%s %s",
				target_p->name, target_p->username,
				target_p->host, target_p->servptr->name);
			report_operspy(source_p, "WHOIS", buffer);
		}

		single_whois(source_p, target_p, operspy);
	}
	else
		sendto_one_numeric(source_p, ERR_NOSUCHNICK,
				   form_str(ERR_NOSUCHNICK),
				   nick);

	sendto_one_numeric(source_p, RPL_ENDOFWHOIS,
			   form_str(RPL_ENDOFWHOIS), parv[1]);
}

/*
 * single_whois()
 *
 * Inputs	- source_p client to report to
 *		- target_p client to report on
 * Output	- if found return 1
 * Side Effects	- do a single whois on given client
 * 		  writing results to source_p
 */
static void
single_whois(struct Client *source_p, struct Client *target_p, int operspy)
{
	char buf[BUFSIZE];
	hook_data_client hdata;
	struct sockaddr_in ip4;

	if(target_p->user == NULL)
	{
		s_assert(0);
		return;
	}

	sendto_one_numeric(source_p, RPL_WHOISUSER, form_str(RPL_WHOISUSER),
			   target_p->name, target_p->username,
			   target_p->host, target_p->info);

	send_multiline_init(source_p, " ", form_str(RPL_WHOISCHANNELS),
				    get_id(&me, source_p), get_id(source_p, source_p),
				    target_p->name);

	/* Make sure it won't overflow when sending it to the client
	 * in full names; note that serverhiding may require more space
	 * for a different server name (not done here) -- jilles
	 */
	send_multiline_remote_pad(source_p, &me);
	send_multiline_remote_pad(source_p, source_p);

	hdata.client = source_p;
	hdata.target = target_p;

	if (!IsService(target_p))
	{
		hook_data_channel_visibility hdata_vis;
		rb_dlink_node *ps, *pt;
		struct Channel *chptr;
		struct membership *ms, *mt;

		hdata_vis.client = source_p;
		hdata_vis.target = target_p;

		ITER_COMM_CHANNELS(ps, pt, source_p->user->channel.head, target_p->user->channel.head, ms, mt, chptr)
		{
			if (mt == NULL)
				continue;

			hdata_vis.chptr = chptr;
			hdata_vis.clientms = ms;
			hdata_vis.targetms = mt;
			hdata_vis.approved = ms != NULL || PubChannel(chptr);

			call_hook(doing_whois_channel_visibility_hook, &hdata_vis);

			if(hdata_vis.approved || operspy)
			{
				send_multiline_item(source_p, "%s%s%s",
						hdata_vis.approved ? "" : "!",
						find_channel_status(mt, 1),
						chptr->chname);
			}
		}
	}

	send_multiline_fini(source_p, NULL);

	sendto_one_numeric(source_p, RPL_WHOISSERVER, form_str(RPL_WHOISSERVER),
			   target_p->name, target_p->servptr->name,
			   target_p->servptr->info);

	if(target_p->user->away)
		sendto_one_numeric(source_p, RPL_AWAY, form_str(RPL_AWAY),
				   target_p->name, target_p->user->away);

	char *s = NULL;
	if (IsService(target_p))
	{
		s = ConfigFileEntry.servicestring;
	}
	if (!EmptyString(target_p->user->opername) && IsOper(target_p))
	{
		if (target_p == source_p || HasPrivilege(source_p, "oper:privs"))
		{
			const char *privset = "(missing)";
			if (target_p->user->privset != NULL)
				privset = target_p->user->privset->name;
			snprintf(buf, sizeof buf, "is opered as %s, privset %s", target_p->user->opername, privset);
			s = buf;
		}
		else if (IsOper(source_p) && SeesOper(target_p, source_p))
		{
			snprintf(buf, sizeof buf, "is opered as %s", target_p->user->opername);
			s = buf;
		}
		else if (!ConfigFileEntry.hide_opers_in_whois && SeesOper(target_p, source_p))
		{
			s = IsAdmin(target_p) ? GlobalSetOptions.adminstring :
			    GlobalSetOptions.operstring;
		}
	}
	if (s != NULL)
	{
		sendto_one_numeric(source_p, RPL_WHOISOPERATOR, form_str(RPL_WHOISOPERATOR),
				target_p->name, s);
	}

	if(IsSecureClient(target_p))
	{
		char cbuf[256] = "is using a secure connection";

		if (MyClient(target_p) && target_p->localClient->cipher_string != NULL &&
				(!ConfigFileEntry.tls_ciphers_oper_only || source_p == target_p || IsOper(source_p)))
			rb_snprintf_append(cbuf, sizeof(cbuf), " [%s]", target_p->localClient->cipher_string);

		sendto_one_numeric(source_p, RPL_WHOISSECURE, form_str(RPL_WHOISSECURE),
				   target_p->name, cbuf);
		if((source_p == target_p || IsOperGeneral(source_p)) &&
				target_p->certfp != NULL)
			sendto_one_numeric(source_p, RPL_WHOISCERTFP,
					form_str(RPL_WHOISCERTFP),
					target_p->name, target_p->certfp);
	}

	if(MyClient(target_p))
	{
		if (IsDynSpoof(target_p) && (HasPrivilege(source_p, "auspex:hostname") || source_p == target_p))
		{
			/* trick here: show a nonoper their own IP if
			 * dynamic spoofed but not if auth{} spoofed
			 * -- jilles */
			ClearDynSpoof(target_p);
			sendto_one_numeric(source_p, RPL_WHOISHOST,
					   form_str(RPL_WHOISHOST),
					   target_p->name, target_p->orighost,
					   show_ip(source_p, target_p) ? target_p->sockhost : "255.255.255.255");
			SetDynSpoof(target_p);
		}
		else if(ConfigFileEntry.use_whois_actually && show_ip(source_p, target_p))
			sendto_one_numeric(source_p, RPL_WHOISACTUALLY,
					   form_str(RPL_WHOISACTUALLY),
					   target_p->name, target_p->sockhost);

		if (GET_SS_FAMILY(&target_p->localClient->ip) == AF_INET6 &&
				(show_ip(source_p, target_p) ||
				 (source_p == target_p && !IsIPSpoof(target_p))) &&
				rb_ipv4_from_ipv6((struct sockaddr_in6 *)&target_p->localClient->ip, &ip4))
		{
			rb_inet_ntop_sock((struct sockaddr *)&ip4,
					buf, sizeof buf);
			sendto_one_numeric(source_p, RPL_WHOISSPECIAL,
					"%s :Underlying IPv4 is %s",
					target_p->name, buf);
		}

		/* fire the doing_whois_show_idle hook to allow modules to tell us whether to show the idle time */
		hook_data_client_approval hdata_showidle;

		hdata_showidle.client = source_p;
		hdata_showidle.target = target_p;
		hdata_showidle.approved = WHOIS_IDLE_SHOW;

		call_hook(doing_whois_show_idle_hook, &hdata_showidle);

		sendto_one_numeric(source_p, RPL_WHOISIDLE, form_str(RPL_WHOISIDLE),
			   target_p->name,
			   hdata_showidle.approved != WHOIS_IDLE_HIDE ? (long)(rb_current_time() - target_p->localClient->last) : 0,
			   (unsigned long)target_p->localClient->firsttime);

		if (hdata_showidle.approved != WHOIS_IDLE_SHOW)
		{
			if (target_p->umodes & user_modes['I'])
			{
				if (hdata_showidle.approved == WHOIS_IDLE_HIDE)
					/* if the target has hidden their idle time, notify the source */
					sendto_one_numeric(source_p, RPL_WHOISSPECIAL, form_str(RPL_WHOISSPECIAL), target_p->name, "is hiding their idle time");
				else
					/* if the target has hidden their idle time, notify the source */
					sendto_one_numeric(source_p, RPL_WHOISSPECIAL, form_str(RPL_WHOISSPECIAL), target_p->name, "is hiding their idle time, but you have auspex");
			}
			else if (hdata_showidle.approved == WHOIS_IDLE_HIDE)
				/* if the source has hidden their idle time, notify the source that they can't view others' idle times either */
				sendto_one_numeric(source_p, RPL_WHOISSPECIAL, form_str(RPL_WHOISSPECIAL), target_p->name, "has a hidden idle time because your own idle time is hidden");
			else
				/* client has auspex to be able to see idle time, but make sure they know that's why they're seeing it */
				sendto_one_numeric(source_p, RPL_WHOISSPECIAL, form_str(RPL_WHOISSPECIAL), target_p->name,
					"has a hidden idle time because your own idle time is hidden, but you have auspex");
		}
	}
	else
	{
		if (IsDynSpoof(target_p) && (HasPrivilege(source_p, "auspex:hostname") || source_p == target_p))
		{
			ClearDynSpoof(target_p);
			sendto_one_numeric(source_p, RPL_WHOISHOST,
					   form_str(RPL_WHOISHOST),
					   target_p->name, target_p->orighost,
					   show_ip(source_p, target_p) && !EmptyString(target_p->sockhost) && strcmp(target_p->sockhost, "0")? target_p->sockhost : "255.255.255.255");
			SetDynSpoof(target_p);
		}
		else if(ConfigFileEntry.use_whois_actually && show_ip(source_p, target_p) &&
		   !EmptyString(target_p->sockhost) && strcmp(target_p->sockhost, "0"))
		{
			sendto_one_numeric(source_p, RPL_WHOISACTUALLY,
					   form_str(RPL_WHOISACTUALLY),
					   target_p->name, target_p->sockhost);

		}
	}

	/* doing_whois_hook must only be called for local clients,
	 * doing_whois_global_hook must only be called for local targets
	 */
	/* it is important that these are called *before* RPL_ENDOFWHOIS is
	 * sent, services compatibility code depends on it. --anfl
	 */
	if(MyClient(source_p))
		call_hook(doing_whois_hook, &hdata);
	else
		call_hook(doing_whois_global_hook, &hdata);
}
Commit	Line	Data
212380e3 AC	1	/*
	2	* ircd-ratbox: A slightly useful ircd.
	3	* m_whois.c: Shows who a user is.
	4	*
	5	* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
	6	* Copyright (C) 1996-2002 Hybrid Development Team
	7	* Copyright (C) 2002-2005 ircd-ratbox development team
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
	22	* USA
212380e3 AC	23	*/
	24
	25	#include "stdinc.h"
212380e3 AC	26	#include "client.h"
	27	#include "hash.h"
	28	#include "channel.h"
	29	#include "hash.h"
	30	#include "ircd.h"
	31	#include "numeric.h"
	32	#include "s_conf.h"
1548c140	33	#include "s_user.h"
212380e3 AC	34	#include "s_serv.h"
212380e3 AC	35	#include "send.h"
4562c604	36	#include "match.h"
4016731b	37	#include "logger.h"
212380e3 AC	38	#include "msg.h"
	39	#include "parse.h"
	40	#include "modules.h"
	41	#include "hook.h"
	42	#include "s_newconf.h"
7e132ff0	43	#include "ratelimit.h"
77d3d2db	44	#include "s_assert.h"
212380e3	45
eeabf33a EM	46	static const char whois_desc[] =
	47	"Provides the WHOIS command to display information about a user";
	48
212380e3 AC	49	static void do_whois(struct Client client_p, struct Client source_p, int parc, const char *parv[]);
	50	static void single_whois(struct Client source_p, struct Client target_p, int operspy);
	51
3c7d6fcc EM	52	static void m_whois(struct MsgBuf , struct Client , struct Client , int, const char *);
3c7d6fcc EM	53	static void ms_whois(struct MsgBuf , struct Client , struct Client , int, const char *);
212380e3 AC	54
212380e3 AC	55	struct Message whois_msgtab = {
7baa37a9	56	"WHOIS", 0, 0, 0, 0,
212380e3 AC	57	{mg_unreg, {m_whois, 2}, {ms_whois, 2}, mg_ignore, mg_ignore, {m_whois, 2}}
	58	};
	59
	60	int doing_whois_hook;
	61	int doing_whois_global_hook;
9e07c8f7	62	int doing_whois_channel_visibility_hook;
01fb744c	63	int doing_whois_show_idle_hook;
212380e3 AC	64
	65	mapi_clist_av1 whois_clist[] = { &whois_msgtab, NULL };
	66	mapi_hlist_av1 whois_hlist[] = {
9e07c8f7 AC	67	{ "doing_whois", &doing_whois_hook },
	68	{ "doing_whois_global", &doing_whois_global_hook },
	69	{ "doing_whois_channel_visibility", &doing_whois_channel_visibility_hook },
01fb744c	70	{ "doing_whois_show_idle", &doing_whois_show_idle_hook },
212380e3 AC	71	{ NULL, NULL }
	72	};
	73
3bf449fe	74	DECLARE_MODULE_AV2(whois, NULL, NULL, whois_clist, whois_hlist, NULL, NULL, NULL, whois_desc);
212380e3 AC	75
	76	/*
	77	* m_whois
212380e3 AC	78	* parv[1] = nickname masklist
212380e3 AC	79	*/
3c7d6fcc	80	static void
428ca87b	81	m_whois(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3 AC	82	{
	83	static time_t last_used = 0;
	84
	85	if(parc > 2)
	86	{
	87	if(EmptyString(parv[2]))
	88	{
	89	sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
	90	me.name, source_p->name);
3c7d6fcc	91	return;
212380e3 AC	92	}
212380e3 AC	93
d4f7eb4c	94	if(!IsOperGeneral(source_p))
212380e3 AC	95	{
212380e3 AC	96	/* seeing as this is going across servers, we should limit it */
7e132ff0	97	if((last_used + ConfigFileEntry.pace_wait_simple) > rb_current_time() \|\| !ratelimit_client(source_p, 2))
212380e3 AC	98	{
	99	sendto_one(source_p, form_str(RPL_LOAD2HI),
	100	me.name, source_p->name, "WHOIS");
55abcbb2	101	sendto_one_numeric(source_p, RPL_ENDOFWHOIS,
f7eac53d	102	form_str(RPL_ENDOFWHOIS), parv[2]);
3c7d6fcc	103	return;
212380e3 AC	104	}
212380e3 AC	105	else
e3354945	106	last_used = rb_current_time();
212380e3 AC	107	}
	108
	109	if(hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1, parc, parv) !=
	110	HUNTED_ISME)
3c7d6fcc	111	return;
212380e3 AC	112
	113	parv[1] = parv[2];
	114
	115	}
	116	do_whois(client_p, source_p, parc, parv);
212380e3 AC	117	}
	118
	119	/*
	120	* ms_whois
212380e3 AC	121	* parv[1] = server to reply
	122	* parv[2] = nickname to whois
	123	*/
3c7d6fcc	124	static void
428ca87b	125	ms_whois(struct MsgBuf msgbuf_p, struct Client client_p, struct Client source_p, int parc, const char parv[])
212380e3 AC	126	{
	127	struct Client *target_p;
	128
	129	/* note: early versions of ratbox allowed users to issue a remote
	130	* whois with a blank parv[2], so we cannot treat it as a protocol
	131	* violation. --anfl
	132	*/
	133	if(parc < 3 \|\| EmptyString(parv[2]))
	134	{
	135	sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
	136	me.name, source_p->name);
3c7d6fcc	137	return;
212380e3 AC	138	}
	139
	140	/* check if parv[1] exists */
	141	if((target_p = find_client(parv[1])) == NULL)
	142	{
	143	sendto_one_numeric(source_p, ERR_NOSUCHSERVER,
55abcbb2	144	form_str(ERR_NOSUCHSERVER),
212380e3	145	IsDigit(parv[1][0]) ? "*" : parv[1]);
3c7d6fcc	146	return;
212380e3 AC	147	}
	148
	149	/* if parv[1] isnt my client, or me, someone else is supposed
55abcbb2	150	* to be handling the request.. so send it to them
212380e3 AC	151	*/
	152	if(!MyClient(target_p) && !IsMe(target_p))
	153	{
55abcbb2 KB	154	sendto_one(target_p, ":%s WHOIS %s :%s",
55abcbb2 KB	155	get_id(source_p, target_p),
212380e3	156	get_id(target_p, target_p), parv[2]);
3c7d6fcc	157	return;
212380e3 AC	158	}
	159
	160	/* ok, the target is either us, or a client on our server, so perform the whois
	161	* but first, parv[1] == server to perform the whois on, parv[2] == person
	162	* to whois, so make parv[1] = parv[2] so do_whois is ok -- fl_
	163	*/
	164	parv[1] = parv[2];
	165	do_whois(client_p, source_p, parc, parv);
212380e3 AC	166	}
	167
	168	/* do_whois
	169	*
55abcbb2 KB	170	* inputs - pointer to
55abcbb2 KB	171	* output -
212380e3 AC	172	* side effects -
	173	*/
	174	static void
	175	do_whois(struct Client client_p, struct Client source_p, int parc, const char *parv[])
	176	{
	177	struct Client *target_p;
	178	char *nick;
	179	char *p = NULL;
	180	int operspy = 0;
	181
	182	nick = LOCAL_COPY(parv[1]);
	183	if((p = strchr(nick, ',')))
	184	*p = '\0';
	185
	186	if(IsOperSpy(source_p) && *nick == '!')
	187	{
	188	operspy = 1;
	189	nick++;
	190	}
	191
2ebef8d9	192	target_p = find_named_person(nick);
212380e3 AC	193	if(target_p != NULL)
	194	{
	195	if(operspy)
	196	{
	197	char buffer[BUFSIZE];
	198
5203cba5	199	snprintf(buffer, sizeof(buffer), "%s!%s@%s %s",
212380e3	200	target_p->name, target_p->username,
c88cdb00	201	target_p->host, target_p->servptr->name);
212380e3 AC	202	report_operspy(source_p, "WHOIS", buffer);
	203	}
	204
	205	single_whois(source_p, target_p, operspy);
	206	}
	207	else
	208	sendto_one_numeric(source_p, ERR_NOSUCHNICK,
55abcbb2	209	form_str(ERR_NOSUCHNICK),
8a1e143f	210	nick);
212380e3	211
55abcbb2	212	sendto_one_numeric(source_p, RPL_ENDOFWHOIS,
212380e3	213	form_str(RPL_ENDOFWHOIS), parv[1]);
212380e3 AC	214	}
	215
	216	/*
	217	* single_whois()
	218	*
	219	* Inputs - source_p client to report to
	220	* - target_p client to report on
	221	* Output - if found return 1
	222	* Side Effects - do a single whois on given client
	223	* writing results to source_p
	224	*/
	225	static void
	226	single_whois(struct Client source_p, struct Client target_p, int operspy)
	227	{
	228	char buf[BUFSIZE];
212380e3	229	hook_data_client hdata;
ae52fe0f	230	struct sockaddr_in ip4;
212380e3	231
212380e3 AC	232	if(target_p->user == NULL)
	233	{
	234	s_assert(0);
	235	return;
	236	}
	237
212380e3	238	sendto_one_numeric(source_p, RPL_WHOISUSER, form_str(RPL_WHOISUSER),
55abcbb2	239	target_p->name, target_p->username,
212380e3 AC	240	target_p->host, target_p->info);
212380e3 AC	241
d901e969	242	send_multiline_init(source_p, " ", form_str(RPL_WHOISCHANNELS),
55abcbb2	243	get_id(&me, source_p), get_id(source_p, source_p),
212380e3 AC	244	target_p->name);
	245
	246	/* Make sure it won't overflow when sending it to the client
	247	* in full names; note that serverhiding may require more space
	248	* for a different server name (not done here) -- jilles
	249	*/
d901e969 DF	250	send_multiline_remote_pad(source_p, &me);
d901e969 DF	251	send_multiline_remote_pad(source_p, source_p);
212380e3	252
9e07c8f7 AC	253	hdata.client = source_p;
	254	hdata.target = target_p;
	255
04513cff	256	if (!IsService(target_p))
212380e3	257	{
5e413b13	258	hook_data_channel_visibility hdata_vis;
e8a8d7a4 EK	259	rb_dlink_node ps, pt;
	260	struct Channel *chptr;
	261	struct membership ms, mt;
5e413b13 EK	262
5e413b13 EK	263	hdata_vis.client = source_p;
e8a8d7a4	264	hdata_vis.target = target_p;
212380e3	265
e8a8d7a4	266	ITER_COMM_CHANNELS(ps, pt, source_p->user->channel.head, target_p->user->channel.head, ms, mt, chptr)
5e413b13	267	{
e8a8d7a4	268	if (mt == NULL)
5e413b13	269	continue;
e8a8d7a4 EK	270
	271	hdata_vis.chptr = chptr;
	272	hdata_vis.clientms = ms;
	273	hdata_vis.targetms = mt;
	274	hdata_vis.approved = ms != NULL \|\| PubChannel(chptr);
9e07c8f7	275
5e413b13	276	call_hook(doing_whois_channel_visibility_hook, &hdata_vis);
212380e3	277
5e413b13	278	if(hdata_vis.approved \|\| operspy)
212380e3	279	{
d901e969	280	send_multiline_item(source_p, "%s%s%s",
5e413b13 EK	281	hdata_vis.approved ? "" : "!",
5e413b13 EK	282	find_channel_status(mt, 1),
e8a8d7a4	283	chptr->chname);
212380e3	284	}
212380e3 AC	285	}
	286	}
	287
d901e969	288	send_multiline_fini(source_p, NULL);
212380e3 AC	289
212380e3 AC	290	sendto_one_numeric(source_p, RPL_WHOISSERVER, form_str(RPL_WHOISSERVER),
c88cdb00	291	target_p->name, target_p->servptr->name,
8170176a	292	target_p->servptr->info);
212380e3	293
c127b45b	294	if(target_p->user->away)
212380e3	295	sendto_one_numeric(source_p, RPL_AWAY, form_str(RPL_AWAY),
c127b45b	296	target_p->name, target_p->user->away);
212380e3	297
ea51635c EK	298	char *s = NULL;
	299	if (IsService(target_p))
	300	{
	301	s = ConfigFileEntry.servicestring;
	302	}
96f6804b	303	if (!EmptyString(target_p->user->opername) && IsOper(target_p))
72ad5c04	304	{
96f6804b EK	305	if (target_p == source_p \|\| HasPrivilege(source_p, "oper:privs"))
	306	{
	307	const char *privset = "(missing)";
	308	if (target_p->user->privset != NULL)
	309	privset = target_p->user->privset->name;
	310	snprintf(buf, sizeof buf, "is opered as %s, privset %s", target_p->user->opername, privset);
	311	s = buf;
	312	}
	313	else if (IsOper(source_p) && SeesOper(target_p, source_p))
	314	{
	315	snprintf(buf, sizeof buf, "is opered as %s", target_p->user->opername);
	316	s = buf;
	317	}
	318	else if (!ConfigFileEntry.hide_opers_in_whois && SeesOper(target_p, source_p))
	319	{
ea51635c	320	s = IsAdmin(target_p) ? GlobalSetOptions.adminstring :
96f6804b EK	321	GlobalSetOptions.operstring;
96f6804b EK	322	}
ea51635c EK	323	}
	324	if (s != NULL)
	325	{
	326	sendto_one_numeric(source_p, RPL_WHOISOPERATOR, form_str(RPL_WHOISOPERATOR),
	327	target_p->name, s);
72ad5c04 AC	328	}
72ad5c04 AC	329
35eccf49	330	if(IsSecureClient(target_p))
427a8d5d AC	331	{
	332	char cbuf[256] = "is using a secure connection";
	333
fff4f763 EK	334	if (MyClient(target_p) && target_p->localClient->cipher_string != NULL &&
fff4f763 EK	335	(!ConfigFileEntry.tls_ciphers_oper_only \|\| source_p == target_p \|\| IsOper(source_p)))
427a8d5d AC	336	rb_snprintf_append(cbuf, sizeof(cbuf), " [%s]", target_p->localClient->cipher_string);
427a8d5d AC	337
af7aaa84	338	sendto_one_numeric(source_p, RPL_WHOISSECURE, form_str(RPL_WHOISSECURE),
427a8d5d	339	target_p->name, cbuf);
d4f7eb4c	340	if((source_p == target_p \|\| IsOperGeneral(source_p)) &&
427a8d5d AC	341	target_p->certfp != NULL)
	342	sendto_one_numeric(source_p, RPL_WHOISCERTFP,
	343	form_str(RPL_WHOISCERTFP),
	344	target_p->name, target_p->certfp);
	345	}
af7aaa84	346
212380e3 AC	347	if(MyClient(target_p))
212380e3 AC	348	{
458c8538	349	if (IsDynSpoof(target_p) && (HasPrivilege(source_p, "auspex:hostname") \|\| source_p == target_p))
212380e3 AC	350	{
	351	/* trick here: show a nonoper their own IP if
	352	* dynamic spoofed but not if auth{} spoofed
	353	* -- jilles */
	354	ClearDynSpoof(target_p);
	355	sendto_one_numeric(source_p, RPL_WHOISHOST,
	356	form_str(RPL_WHOISHOST),
	357	target_p->name, target_p->orighost,
	358	show_ip(source_p, target_p) ? target_p->sockhost : "255.255.255.255");
	359	SetDynSpoof(target_p);
	360	}
	361	else if(ConfigFileEntry.use_whois_actually && show_ip(source_p, target_p))
	362	sendto_one_numeric(source_p, RPL_WHOISACTUALLY,
	363	form_str(RPL_WHOISACTUALLY),
	364	target_p->name, target_p->sockhost);
	365
032ef5ef	366	if (GET_SS_FAMILY(&target_p->localClient->ip) == AF_INET6 &&
ae52fe0f JT	367	(show_ip(source_p, target_p) \|\|
ae52fe0f JT	368	(source_p == target_p && !IsIPSpoof(target_p))) &&
4eafa9e6	369	rb_ipv4_from_ipv6((struct sockaddr_in6 *)&target_p->localClient->ip, &ip4))
ae52fe0f JT	370	{
	371	rb_inet_ntop_sock((struct sockaddr *)&ip4,
	372	buf, sizeof buf);
460e7932	373	sendto_one_numeric(source_p, RPL_WHOISSPECIAL,
ae52fe0f JT	374	"%s :Underlying IPv4 is %s",
	375	target_p->name, buf);
	376	}
ae52fe0f	377
01fb744c DS	378	/* fire the doing_whois_show_idle hook to allow modules to tell us whether to show the idle time */
	379	hook_data_client_approval hdata_showidle;
	380
	381	hdata_showidle.client = source_p;
	382	hdata_showidle.target = target_p;
	383	hdata_showidle.approved = WHOIS_IDLE_SHOW;
	384
	385	call_hook(doing_whois_show_idle_hook, &hdata_showidle);
	386
212380e3	387	sendto_one_numeric(source_p, RPL_WHOISIDLE, form_str(RPL_WHOISIDLE),
01fb744c	388	target_p->name,
c5a06716	389	hdata_showidle.approved != WHOIS_IDLE_HIDE ? (long)(rb_current_time() - target_p->localClient->last) : 0,
01fb744c DS	390	(unsigned long)target_p->localClient->firsttime);
01fb744c DS	391
309e1e62	392	if (hdata_showidle.approved != WHOIS_IDLE_SHOW)
fa33bdd1	393	{
309e1e62 SB	394	if (target_p->umodes & user_modes['I'])
	395	{
	396	if (hdata_showidle.approved == WHOIS_IDLE_HIDE)
	397	/* if the target has hidden their idle time, notify the source */
460e7932	398	sendto_one_numeric(source_p, RPL_WHOISSPECIAL, form_str(RPL_WHOISSPECIAL), target_p->name, "is hiding their idle time");
309e1e62 SB	399	else
309e1e62 SB	400	/* if the target has hidden their idle time, notify the source */
460e7932	401	sendto_one_numeric(source_p, RPL_WHOISSPECIAL, form_str(RPL_WHOISSPECIAL), target_p->name, "is hiding their idle time, but you have auspex");
309e1e62 SB	402	}
309e1e62 SB	403	else if (hdata_showidle.approved == WHOIS_IDLE_HIDE)
c5a06716	404	/* if the source has hidden their idle time, notify the source that they can't view others' idle times either */
460e7932	405	sendto_one_numeric(source_p, RPL_WHOISSPECIAL, form_str(RPL_WHOISSPECIAL), target_p->name, "has a hidden idle time because your own idle time is hidden");
c5a06716	406	else
c5a06716	407	/* client has auspex to be able to see idle time, but make sure they know that's why they're seeing it */
460e7932	408	sendto_one_numeric(source_p, RPL_WHOISSPECIAL, form_str(RPL_WHOISSPECIAL), target_p->name,
c5a06716	409	"has a hidden idle time because your own idle time is hidden, but you have auspex");
c5a06716	410	}
212380e3 AC	411	}
	412	else
	413	{
458c8538	414	if (IsDynSpoof(target_p) && (HasPrivilege(source_p, "auspex:hostname") \|\| source_p == target_p))
212380e3 AC	415	{
	416	ClearDynSpoof(target_p);
	417	sendto_one_numeric(source_p, RPL_WHOISHOST,
	418	form_str(RPL_WHOISHOST),
	419	target_p->name, target_p->orighost,
	420	show_ip(source_p, target_p) && !EmptyString(target_p->sockhost) && strcmp(target_p->sockhost, "0")? target_p->sockhost : "255.255.255.255");
	421	SetDynSpoof(target_p);
	422	}
	423	else if(ConfigFileEntry.use_whois_actually && show_ip(source_p, target_p) &&
	424	!EmptyString(target_p->sockhost) && strcmp(target_p->sockhost, "0"))
	425	{
	426	sendto_one_numeric(source_p, RPL_WHOISACTUALLY,
	427	form_str(RPL_WHOISACTUALLY),
	428	target_p->name, target_p->sockhost);
55abcbb2	429
212380e3	430	}
212380e3 AC	431	}
212380e3 AC	432
212380e3 AC	433	/* doing_whois_hook must only be called for local clients,
	434	* doing_whois_global_hook must only be called for local targets
	435	*/
	436	/* it is important that these are called before RPL_ENDOFWHOIS is
	437	* sent, services compatibility code depends on it. --anfl
	438	*/
	439	if(MyClient(source_p))
	440	call_hook(doing_whois_hook, &hdata);
	441	else
	442	call_hook(doing_whois_global_hook, &hdata);
212380e3	443	}