trunk/modules/m_whois.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_whois.c: Shows who a user is.
 *
 *  Copyright (C) 2005 by the past and present ircd coders, and others.
 *
 *  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
 *
 *  $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "hash.h"
#include "channel.h"
#include "channel_mode.h"
#include "ircd.h"
#include "numeric.h"
#include "conf.h"
#include "s_misc.h"
#include "s_serv.h"
#include "send.h"
#include "irc_string.h"
#include "parse.h"
#include "modules.h"


static void do_whois(struct Client *, int, char *[]);
static void whois_person(struct Client *, struct Client *);


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

  if (parc < 2 || EmptyString(parv[1]))
  {
    sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
               me.name, source_p->name);
    return;
  }

  if (parc > 2 && !EmptyString(parv[2]))
  {
    /* seeing as this is going across servers, we should limit it */
    if ((last_used + ConfigFileEntry.pace_wait_simple) > CurrentTime)
    {
      sendto_one(source_p, form_str(RPL_LOAD2HI),
                 me.name, source_p->name);
      return;
    }

    last_used = CurrentTime;

    /* if we have serverhide enabled, they can either ask the clients
     * server, or our server.. I dont see why they would need to ask
     * anything else for info about the client.. --fl_
     */
    if (ConfigFileEntry.disable_remote)
      parv[1] = parv[2];

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

    parv[1] = parv[2];
  }

  do_whois(source_p, parc, parv);
}

/*
** mo_whois
**      parv[0] = sender prefix
**      parv[1] = nickname masklist
*/
static void
mo_whois(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  if (parc < 2 || EmptyString(parv[1]))
  {
    sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
               me.name, source_p->name);
    return;
  }

  if (parc > 2 && !EmptyString(parv[2]))
  {
    if (hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1,
                    parc, parv) != HUNTED_ISME)
      return;

    parv[1] = parv[2];
  }

  do_whois(source_p, parc, parv);
}

/* do_whois()
 *
 * inputs       - pointer to /whois source
 *              - number of parameters
 *              - pointer to parameters array
 * output       - pointer to void
 * side effects - Does whois
 */
static void
do_whois(struct Client *source_p, int parc, char *parv[])
{
  struct Client *target_p = NULL;
  char *nick = parv[1];
  char *p = NULL;

  if ((p = strchr(nick, ',')) != NULL)
    *p = '\0';
  if (*nick == '\0')
    return;

  if ((target_p = hash_find_client(nick)) && IsClient(target_p))
    whois_person(source_p, target_p);
  else  if (!IsDigit(*nick))
    sendto_one(source_p, form_str(ERR_NOSUCHNICK),
               me.name, source_p->name, nick);

  sendto_one(source_p, form_str(RPL_ENDOFWHOIS),
             me.name, source_p->name, nick);
}

/* whois_person()
 *
 * inputs       - source_p client to report to
 *              - target_p client to report on
 * output       - NONE
 * side effects - 
 */
static void
whois_person(struct Client *source_p, struct Client *target_p)
{
  char buf[IRCD_BUFSIZE];
  const dlink_node *lp = NULL;
  char *t = NULL;
  int cur_len = 0;
  int show_ip = 0;
  int mlen = 0;
  int tlen = 0;
  int reply_to_send = 0;

  sendto_one(source_p, form_str(RPL_WHOISUSER), me.name,
             source_p->name, target_p->name,
             target_p->username, target_p->host, target_p->info);

  cur_len = mlen = snprintf(buf, sizeof(buf), form_str(RPL_WHOISCHANNELS),
                            me.name, source_p->name, target_p->name, "");
  t = buf + mlen;

  DLINK_FOREACH(lp, target_p->channel.head)
  {
    const struct Membership *ms = lp->data;

    if (ShowChannel(source_p, ms->chptr))
    {
      if ((cur_len + 3 + strlen(ms->chptr->chname) + 1) > (IRCD_BUFSIZE - 2))
      {
        *(t - 1) = '\0';
        sendto_one(source_p, "%s", buf);
        cur_len = mlen;
        t = buf + mlen;
      }

      tlen = sprintf(t, "%s%s ", get_member_status(ms, 1), ms->chptr->chname);
      t += tlen;
      cur_len += tlen;
      reply_to_send = 1;
    }
  }

  if (reply_to_send)
  {
    *(t - 1) = '\0';
    sendto_one(source_p, "%s", buf);
  }

  if (HasUMode(source_p, UMODE_OPER) || !ConfigServerHide.hide_servers || target_p == source_p)
    sendto_one(source_p, form_str(RPL_WHOISSERVER),
               me.name, source_p->name, target_p->name,
               target_p->servptr->name, target_p->servptr->info);
  else
    sendto_one(source_p, form_str(RPL_WHOISSERVER),
               me.name, source_p->name, target_p->name,
               ConfigServerHide.hidden_name,
               ServerInfo.network_desc);

  if (HasUMode(target_p, UMODE_REGISTERED))
    sendto_one(source_p, form_str(RPL_WHOISREGNICK),
               me.name, source_p->name, target_p->name);

  if (target_p->away[0])
    sendto_one(source_p, form_str(RPL_AWAY),
               me.name, source_p->name, target_p->name,
               target_p->away);

  if (HasUMode(target_p, UMODE_CALLERID) && !HasUMode(target_p, UMODE_SOFTCALLERID))
    sendto_one(source_p, form_str(RPL_TARGUMODEG),
               me.name, source_p->name, target_p->name);

  if (HasUMode(target_p, UMODE_OPER))
    if (!HasUMode(target_p, UMODE_HIDDEN) || HasUMode(source_p, UMODE_OPER))
      sendto_one(source_p, form_str(HasUMode(target_p, UMODE_ADMIN) ? RPL_WHOISADMIN :
                 RPL_WHOISOPERATOR),
                 me.name, source_p->name, target_p->name);

  if (target_p->sockhost[0] && strcmp(target_p->sockhost, "0"))
  {
    if (HasUMode(source_p, UMODE_ADMIN) || source_p == target_p)
      show_ip = 1;
    else if (IsIPSpoof(target_p))
      show_ip = (HasUMode(source_p, UMODE_OPER) && !ConfigFileEntry.hide_spoof_ips);
    else
      show_ip = 1;

    sendto_one(source_p, form_str(RPL_WHOISACTUALLY),
               me.name, source_p->name, target_p->name,
               show_ip ? target_p->sockhost : "255.255.255.255");
  }

  if (MyConnect(target_p)) /* Can't do any of this if not local! db */
  {
#ifdef HAVE_LIBCRYPTO
    if (target_p->localClient->fd.ssl)
      sendto_one(source_p, form_str(RPL_WHOISSECURE),
                 me.name, source_p->name, target_p->name);
#endif
    sendto_one(source_p, form_str(RPL_WHOISIDLE),
               me.name, source_p->name, target_p->name,
               idle_time_get(source_p, target_p),
               target_p->localClient->firsttime);

    if (HasUMode(target_p, UMODE_OPER) && target_p != source_p)
      if (HasUMode(target_p, UMODE_SPY))
        sendto_one(target_p, ":%s NOTICE %s :*** Notice -- %s (%s@%s) [%s] is doing "
                   "a whois on you", me.name, target_p->name, source_p->name,
                   source_p->username, source_p->host, source_p->servptr->name);
  }
}

static struct Message whois_msgtab = {
  "WHOIS", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_whois, mo_whois, m_ignore, mo_whois, m_ignore }
};

static void
module_init(void)
{
  mod_add_cmd(&whois_msgtab);
}

static void
module_exit(void)
{
  mod_del_cmd(&whois_msgtab);
}

struct module module_entry = {
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	1874
Committed:	Sat Apr 27 09:27:34 2013 UTC (13 years, 5 months ago) by michael
Content type:	text/x-csrc
File size:	8207 byte(s)
Log Message:	- WHOIS may no longer accept wildcards
#	Content
1	/*
2	* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3	* m_whois.c: Shows who a user is.
4	*
5	* Copyright (C) 2005 by the past and present ircd coders, and others.
6	*
7	* This program is free software; you can redistribute it and/or modify
8	* it under the terms of the GNU General Public License as published by
9	* the Free Software Foundation; either version 2 of the License, or
10	* (at your option) any later version.
11	*
12	* This program is distributed in the hope that it will be useful,
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	* GNU General Public License for more details.
16	*
17	* You should have received a copy of the GNU General Public License
18	* along with this program; if not, write to the Free Software
19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20	* USA
21	*
22	* $Id$
23	*/
24
25	#include "stdinc.h"
26	#include "list.h"
27	#include "client.h"
28	#include "hash.h"
29	#include "channel.h"
30	#include "channel_mode.h"
31	#include "ircd.h"
32	#include "numeric.h"
33	#include "conf.h"
34	#include "s_misc.h"
35	#include "s_serv.h"
36	#include "send.h"
37	#include "irc_string.h"
38	#include "parse.h"
39	#include "modules.h"
40
41
42	static void do_whois(struct Client , int, char []);
43	static void whois_person(struct Client , struct Client );
44
45
46	/*
47	** m_whois
48	** parv[0] = sender prefix
49	** parv[1] = nickname masklist
50	*/
51	static void
52	m_whois(struct Client client_p, struct Client source_p,
53	int parc, char *parv[])
54	{
55	static time_t last_used = 0;
56
57	if (parc < 2 \|\| EmptyString(parv[1]))
58	{
59	sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
60	me.name, source_p->name);
61	return;
62	}
63
64	if (parc > 2 && !EmptyString(parv[2]))
65	{
66	/* seeing as this is going across servers, we should limit it */
67	if ((last_used + ConfigFileEntry.pace_wait_simple) > CurrentTime)
68	{
69	sendto_one(source_p, form_str(RPL_LOAD2HI),
70	me.name, source_p->name);
71	return;
72	}
73
74	last_used = CurrentTime;
75
76	/* if we have serverhide enabled, they can either ask the clients
77	* server, or our server.. I dont see why they would need to ask
78	* anything else for info about the client.. --fl_
79	*/
80	if (ConfigFileEntry.disable_remote)
81	parv[1] = parv[2];
82
83	if (hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1,
84	parc, parv) != HUNTED_ISME)
85	return;
86
87	parv[1] = parv[2];
88	}
89
90	do_whois(source_p, parc, parv);
91	}
92
93	/*
94	** mo_whois
95	** parv[0] = sender prefix
96	** parv[1] = nickname masklist
97	*/
98	static void
99	mo_whois(struct Client client_p, struct Client source_p,
100	int parc, char *parv[])
101	{
102	if (parc < 2 \|\| EmptyString(parv[1]))
103	{
104	sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
105	me.name, source_p->name);
106	return;
107	}
108
109	if (parc > 2 && !EmptyString(parv[2]))
110	{
111	if (hunt_server(client_p, source_p, ":%s WHOIS %s :%s", 1,
112	parc, parv) != HUNTED_ISME)
113	return;
114
115	parv[1] = parv[2];
116	}
117
118	do_whois(source_p, parc, parv);
119	}
120
121	/* do_whois()
122	*
123	* inputs - pointer to /whois source
124	* - number of parameters
125	* - pointer to parameters array
126	* output - pointer to void
127	* side effects - Does whois
128	*/
129	static void
130	do_whois(struct Client source_p, int parc, char parv[])
131	{
132	struct Client *target_p = NULL;
133	char *nick = parv[1];
134	char *p = NULL;
135
136	if ((p = strchr(nick, ',')) != NULL)
137	*p = '\0';
138	if (*nick == '\0')
139	return;
140
141	if ((target_p = hash_find_client(nick)) && IsClient(target_p))
142	whois_person(source_p, target_p);
143	else if (!IsDigit(*nick))
144	sendto_one(source_p, form_str(ERR_NOSUCHNICK),
145	me.name, source_p->name, nick);
146
147	sendto_one(source_p, form_str(RPL_ENDOFWHOIS),
148	me.name, source_p->name, nick);
149	}
150
151	/* whois_person()
152	*
153	* inputs - source_p client to report to
154	* - target_p client to report on
155	* output - NONE
156	* side effects -
157	*/
158	static void
159	whois_person(struct Client source_p, struct Client target_p)
160	{
161	char buf[IRCD_BUFSIZE];
162	const dlink_node *lp = NULL;
163	char *t = NULL;
164	int cur_len = 0;
165	int show_ip = 0;
166	int mlen = 0;
167	int tlen = 0;
168	int reply_to_send = 0;
169
170	sendto_one(source_p, form_str(RPL_WHOISUSER), me.name,
171	source_p->name, target_p->name,
172	target_p->username, target_p->host, target_p->info);
173
174	cur_len = mlen = snprintf(buf, sizeof(buf), form_str(RPL_WHOISCHANNELS),
175	me.name, source_p->name, target_p->name, "");
176	t = buf + mlen;
177
178	DLINK_FOREACH(lp, target_p->channel.head)
179	{
180	const struct Membership *ms = lp->data;
181
182	if (ShowChannel(source_p, ms->chptr))
183	{
184	if ((cur_len + 3 + strlen(ms->chptr->chname) + 1) > (IRCD_BUFSIZE - 2))
185	{
186	*(t - 1) = '\0';
187	sendto_one(source_p, "%s", buf);
188	cur_len = mlen;
189	t = buf + mlen;
190	}
191
192	tlen = sprintf(t, "%s%s ", get_member_status(ms, 1), ms->chptr->chname);
193	t += tlen;
194	cur_len += tlen;
195	reply_to_send = 1;
196	}
197	}
198
199	if (reply_to_send)
200	{
201	*(t - 1) = '\0';
202	sendto_one(source_p, "%s", buf);
203	}
204
205	if (HasUMode(source_p, UMODE_OPER) \|\| !ConfigServerHide.hide_servers \|\| target_p == source_p)
206	sendto_one(source_p, form_str(RPL_WHOISSERVER),
207	me.name, source_p->name, target_p->name,
208	target_p->servptr->name, target_p->servptr->info);
209	else
210	sendto_one(source_p, form_str(RPL_WHOISSERVER),
211	me.name, source_p->name, target_p->name,
212	ConfigServerHide.hidden_name,
213	ServerInfo.network_desc);
214
215	if (HasUMode(target_p, UMODE_REGISTERED))
216	sendto_one(source_p, form_str(RPL_WHOISREGNICK),
217	me.name, source_p->name, target_p->name);
218
219	if (target_p->away[0])
220	sendto_one(source_p, form_str(RPL_AWAY),
221	me.name, source_p->name, target_p->name,
222	target_p->away);
223
224	if (HasUMode(target_p, UMODE_CALLERID) && !HasUMode(target_p, UMODE_SOFTCALLERID))
225	sendto_one(source_p, form_str(RPL_TARGUMODEG),
226	me.name, source_p->name, target_p->name);
227
228	if (HasUMode(target_p, UMODE_OPER))
229	if (!HasUMode(target_p, UMODE_HIDDEN) \|\| HasUMode(source_p, UMODE_OPER))
230	sendto_one(source_p, form_str(HasUMode(target_p, UMODE_ADMIN) ? RPL_WHOISADMIN :
231	RPL_WHOISOPERATOR),
232	me.name, source_p->name, target_p->name);
233
234	if (target_p->sockhost[0] && strcmp(target_p->sockhost, "0"))
235	{
236	if (HasUMode(source_p, UMODE_ADMIN) \|\| source_p == target_p)
237	show_ip = 1;
238	else if (IsIPSpoof(target_p))
239	show_ip = (HasUMode(source_p, UMODE_OPER) && !ConfigFileEntry.hide_spoof_ips);
240	else
241	show_ip = 1;
242
243	sendto_one(source_p, form_str(RPL_WHOISACTUALLY),
244	me.name, source_p->name, target_p->name,
245	show_ip ? target_p->sockhost : "255.255.255.255");
246	}
247
248	if (MyConnect(target_p)) /* Can't do any of this if not local! db */
249	{
250	#ifdef HAVE_LIBCRYPTO
251	if (target_p->localClient->fd.ssl)
252	sendto_one(source_p, form_str(RPL_WHOISSECURE),
253	me.name, source_p->name, target_p->name);
254	#endif
255	sendto_one(source_p, form_str(RPL_WHOISIDLE),
256	me.name, source_p->name, target_p->name,
257	idle_time_get(source_p, target_p),
258	target_p->localClient->firsttime);
259
260	if (HasUMode(target_p, UMODE_OPER) && target_p != source_p)
261	if (HasUMode(target_p, UMODE_SPY))
262	sendto_one(target_p, ":%s NOTICE %s :*** Notice -- %s (%s@%s) [%s] is doing "
263	"a whois on you", me.name, target_p->name, source_p->name,
264	source_p->username, source_p->host, source_p->servptr->name);
265	}
266	}
267
268	static struct Message whois_msgtab = {
269	"WHOIS", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
270	{ m_unregistered, m_whois, mo_whois, m_ignore, mo_whois, m_ignore }
271	};
272
273	static void
274	module_init(void)
275	{
276	mod_add_cmd(&whois_msgtab);
277	}
278
279	static void
280	module_exit(void)
281	{
282	mod_del_cmd(&whois_msgtab);
283	}
284
285	struct module module_entry = {
286	.node = { NULL, NULL, NULL },
287	.name = NULL,
288	.version = "$Revision$",
289	.handle = NULL,
290	.modinit = module_init,
291	.modexit = module_exit,
292	.flags = 0
293	};