ircd-hybrid-7.3/modules/m_watch.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_watch.c: Maintains notify list
 *
 *  Copyright (C) 1997 Jukka Santala (Donwulff)
 *  Copyright (C) 2005 by the Hybrid 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
 *
 *  $Id$
 */

#include "stdinc.h"
#include "handlers.h"
#include "client.h"
#include "irc_string.h"
#include "sprintf_irc.h"
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "send.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "s_user.h"
#include "watch.h"

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

struct Message watch_msgtab = {
  "WATCH", 0, 0, 0, 0, MFLG_SLOW, 0,
  { m_unregistered, m_watch, m_ignore, m_ignore, m_watch, m_ignore }
};

#ifndef STATIC_MODULES
void
_modinit(void)
{
  mod_add_cmd(&watch_msgtab);
  add_isupport("WATCH", NULL, ConfigFileEntry.max_watch);
}

void
_moddeinit(void)
{
  mod_del_cmd(&watch_msgtab);
  delete_isupport("WATCH");
}

const char *_version = "$Revision$";
#endif

/*
 * RPL_NOWON        - Online at the moment (Succesfully added to WATCH-list)
 * RPL_NOWOFF       - Offline at the moment (Succesfully added to WATCH-list)
 * RPL_WATCHOFF     - Succesfully removed from WATCH-list.
 * ERR_TOOMANYWATCH - Take a guess :>  Too many WATCH entries.
 */
static void
show_watch(struct Client *client_p, const char *name,
           unsigned int rpl1, unsigned int rpl2)
{
  const struct Client *target_p = NULL;

  if ((target_p = find_person(client_p, name)))
    sendto_one(client_p, form_str(rpl1), me.name, client_p->name,
               target_p->name, target_p->username,
               target_p->host, target_p->lasttime);
  else
    sendto_one(client_p, form_str(rpl2), me.name, client_p->name,
               name, "*", "*", 0);
}

/*
 * m_watch()
 *
 * parv[0] = sender prefix
 * parv[1] = watch options
 */
static void
m_watch(struct Client *client_p, struct Client *source_p, int parc, char *parv[])
{
  dlink_node *ptr = NULL;
  char *s = NULL;
  char *p = NULL;
  char *user;
  char def[2] = "l";
  unsigned int list_requested = 0;

  /*
   * Default to 'l' - list who's currently online
   */
  if (parc < 2)
    parv[1] = def;

  for (s = strtoken(&p, parv[1], ", "); s;
       s = strtoken(&p,    NULL, ", "))
  {
    if ((user = strchr(s, '!')))
      *user++ = '\0'; /* Not used */

    /*
     * Prefix of "+", they want to add a name to their WATCH
     * list.
     */
    if (*s == '+')
    {
      if (*(s + 1) != '\0')
      {
        if (dlink_list_length(&source_p->localClient->watches) >=
            ConfigFileEntry.max_watch)
        {
          sendto_one(source_p, form_str(ERR_TOOMANYWATCH), me.name,
                     source_p->name, s + 1, ConfigFileEntry.max_watch);
          continue;
        }

        watch_add_to_hash_table(s + 1, source_p);
      }

      show_watch(source_p, s + 1, RPL_NOWON, RPL_NOWOFF);
      continue;
    }

    /*
     * Prefix of "-", coward wants to remove somebody from their
     * WATCH list.  So do it. :-)
     */
    if (*s == '-')
    {
      watch_del_from_hash_table(s + 1, source_p);
      show_watch(source_p, s + 1, RPL_WATCHOFF, RPL_WATCHOFF);
      continue;
    }

    /*
     * Fancy "C" or "c", they want to nuke their WATCH list and start
     * over, so be it.
     */
    if (*s == 'C' || *s == 'c')
    {
      watch_del_watch_list(source_p);
      continue;
    }

    /*
     * Now comes the fun stuff, "S" or "s" returns a status report of
     * their WATCH list.  I imagine this could be CPU intensive if
     * it's done alot, perhaps an auto-lag on this?
     */
    if (*s == 'S' || *s == 's')
    {
      char buf[IRCD_BUFSIZE] = { '\0' };
      const struct Watch *anptr = NULL;
      unsigned int count = 0;

      if (list_requested & 0x1)
        continue;

      list_requested |= 0x1;

      /*
       * Send a list of how many users they have on their WATCH list
       * and how many WATCH lists they are on.
       */
      if ((anptr = watch_find_hash(source_p->name)))
        count = dlink_list_length(&anptr->watched_by);

      sendto_one(source_p, form_str(RPL_WATCHSTAT),
                 me.name, source_p->name,
                 dlink_list_length(&source_p->localClient->watches), count);

      /*
       * Send a list of everybody in their WATCH list.  Be careful
       * not to buffer overflow.
       */
      if ((ptr = source_p->localClient->watches.head) == NULL)
      {
        sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
                   me.name, source_p->name, *s);
        continue;
      }

      anptr = ptr->data;
      strlcpy(buf, anptr->nick, sizeof(buf));

      count = strlen(source_p->name) + strlen(me.name) + 10 +
              strlen(buf);

      while ((ptr = ptr->next))
      {
        anptr = ptr->data;

        if (count + strlen(anptr->nick) + 1 > IRCD_BUFSIZE - 2)
        {
          sendto_one(source_p, form_str(RPL_WATCHLIST),
                     me.name, source_p->name, buf);
          buf[0] = '\0';
          count = strlen(source_p->name) + strlen(me.name) + 10;
        }

        strcat(buf, " ");
        strcat(buf, anptr->nick);
        count += (strlen(anptr->nick) + 1);
      }

      sendto_one(source_p, form_str(RPL_WATCHLIST),
                 me.name, source_p->name, buf);
      sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
                 me.name, source_p->name, *s);
      continue;
    }

    /*
     * Well that was fun, NOT.  Now they want a list of everybody in
     * their WATCH list AND if they are online or offline? Sheesh,
     * greedy aren't we?
     */
    if (*s == 'L' || *s == 'l')
    {
      const struct Client *target_p = NULL;

      if (list_requested & 0x2)
        continue;

      list_requested |= 0x2;

      DLINK_FOREACH(ptr, source_p->localClient->watches.head)
      {
        const struct Watch *anptr = ptr->data;

        if ((target_p = find_person(source_p, anptr->nick)))
          sendto_one(source_p, form_str(RPL_NOWON), me.name, source_p->name,
                     target_p->name, target_p->username,
                     target_p->host, target_p->tsinfo);
        /*
         * But actually, only show them offline if it's a capital
         * 'L' (full list wanted).
         */
        else if (*s == 'L')
          sendto_one(source_p, form_str(RPL_NOWOFF), me.name,
                     source_p->name, anptr->nick,
                     "*", "*", anptr->lasttime);
      }

      sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
                 me.name, source_p->name, *s);
      continue;
    }

    /* Hmm.. unknown prefix character.. Ignore it. :-) */
  }
}
Revision:	1029
Committed:	Sun Nov 8 13:10:50 2009 UTC (14 years, 5 months ago) by michael
Content type:	text/x-csrc
File size:	7360 byte(s)
Log Message:	- branch off trunk to create 7.3 branch
#	Content
1	/*
2	* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3	* m_watch.c: Maintains notify list
4	*
5	* Copyright (C) 1997 Jukka Santala (Donwulff)
6	* Copyright (C) 2005 by the Hybrid Development Team.
7	*
8	* This program is free software; you can redistribute it and/or modify
9	* it under the terms of the GNU General Public License as published by
10	* the Free Software Foundation; either version 2 of the License, or
11	* (at your option) any later version.
12	*
13	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.
17	*
18	* You should have received a copy of the GNU General Public License
19	* along with this program; if not, write to the Free Software
20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
21	* USA
22	*
23	* $Id$
24	*/
25
26	#include "stdinc.h"
27	#include "handlers.h"
28	#include "client.h"
29	#include "irc_string.h"
30	#include "sprintf_irc.h"
31	#include "ircd.h"
32	#include "numeric.h"
33	#include "s_conf.h"
34	#include "send.h"
35	#include "msg.h"
36	#include "parse.h"
37	#include "modules.h"
38	#include "s_user.h"
39	#include "watch.h"
40
41	static void m_watch(struct Client , struct Client , int, char *[]);
42
43	struct Message watch_msgtab = {
44	"WATCH", 0, 0, 0, 0, MFLG_SLOW, 0,
45	{ m_unregistered, m_watch, m_ignore, m_ignore, m_watch, m_ignore }
46	};
47
48	#ifndef STATIC_MODULES
49	void
50	_modinit(void)
51	{
52	mod_add_cmd(&watch_msgtab);
53	add_isupport("WATCH", NULL, ConfigFileEntry.max_watch);
54	}
55
56	void
57	_moddeinit(void)
58	{
59	mod_del_cmd(&watch_msgtab);
60	delete_isupport("WATCH");
61	}
62
63	const char *_version = "$Revision$";
64	#endif
65
66	/*
67	* RPL_NOWON - Online at the moment (Succesfully added to WATCH-list)
68	* RPL_NOWOFF - Offline at the moment (Succesfully added to WATCH-list)
69	* RPL_WATCHOFF - Succesfully removed from WATCH-list.
70	* ERR_TOOMANYWATCH - Take a guess :> Too many WATCH entries.
71	*/
72	static void
73	show_watch(struct Client client_p, const char name,
74	unsigned int rpl1, unsigned int rpl2)
75	{
76	const struct Client *target_p = NULL;
77
78	if ((target_p = find_person(client_p, name)))
79	sendto_one(client_p, form_str(rpl1), me.name, client_p->name,
80	target_p->name, target_p->username,
81	target_p->host, target_p->lasttime);
82	else
83	sendto_one(client_p, form_str(rpl2), me.name, client_p->name,
84	name, "", "", 0);
85	}
86
87	/*
88	* m_watch()
89	*
90	* parv[0] = sender prefix
91	* parv[1] = watch options
92	*/
93	static void
94	m_watch(struct Client client_p, struct Client source_p, int parc, char *parv[])
95	{
96	dlink_node *ptr = NULL;
97	char *s = NULL;
98	char *p = NULL;
99	char *user;
100	char def[2] = "l";
101	unsigned int list_requested = 0;
102
103	/*
104	* Default to 'l' - list who's currently online
105	*/
106	if (parc < 2)
107	parv[1] = def;
108
109	for (s = strtoken(&p, parv[1], ", "); s;
110	s = strtoken(&p, NULL, ", "))
111	{
112	if ((user = strchr(s, '!')))
113	user++ = '\0'; / Not used */
114
115	/*
116	* Prefix of "+", they want to add a name to their WATCH
117	* list.
118	*/
119	if (*s == '+')
120	{
121	if (*(s + 1) != '\0')
122	{
123	if (dlink_list_length(&source_p->localClient->watches) >=
124	ConfigFileEntry.max_watch)
125	{
126	sendto_one(source_p, form_str(ERR_TOOMANYWATCH), me.name,
127	source_p->name, s + 1, ConfigFileEntry.max_watch);
128	continue;
129	}
130
131	watch_add_to_hash_table(s + 1, source_p);
132	}
133
134	show_watch(source_p, s + 1, RPL_NOWON, RPL_NOWOFF);
135	continue;
136	}
137
138	/*
139	* Prefix of "-", coward wants to remove somebody from their
140	* WATCH list. So do it. :-)
141	*/
142	if (*s == '-')
143	{
144	watch_del_from_hash_table(s + 1, source_p);
145	show_watch(source_p, s + 1, RPL_WATCHOFF, RPL_WATCHOFF);
146	continue;
147	}
148
149	/*
150	* Fancy "C" or "c", they want to nuke their WATCH list and start
151	* over, so be it.
152	*/
153	if (s == 'C' \|\| s == 'c')
154	{
155	watch_del_watch_list(source_p);
156	continue;
157	}
158
159	/*
160	* Now comes the fun stuff, "S" or "s" returns a status report of
161	* their WATCH list. I imagine this could be CPU intensive if
162	* it's done alot, perhaps an auto-lag on this?
163	*/
164	if (s == 'S' \|\| s == 's')
165	{
166	char buf[IRCD_BUFSIZE] = { '\0' };
167	const struct Watch *anptr = NULL;
168	unsigned int count = 0;
169
170	if (list_requested & 0x1)
171	continue;
172
173	list_requested \|= 0x1;
174
175	/*
176	* Send a list of how many users they have on their WATCH list
177	* and how many WATCH lists they are on.
178	*/
179	if ((anptr = watch_find_hash(source_p->name)))
180	count = dlink_list_length(&anptr->watched_by);
181
182	sendto_one(source_p, form_str(RPL_WATCHSTAT),
183	me.name, source_p->name,
184	dlink_list_length(&source_p->localClient->watches), count);
185
186	/*
187	* Send a list of everybody in their WATCH list. Be careful
188	* not to buffer overflow.
189	*/
190	if ((ptr = source_p->localClient->watches.head) == NULL)
191	{
192	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
193	me.name, source_p->name, *s);
194	continue;
195	}
196
197	anptr = ptr->data;
198	strlcpy(buf, anptr->nick, sizeof(buf));
199
200	count = strlen(source_p->name) + strlen(me.name) + 10 +
201	strlen(buf);
202
203	while ((ptr = ptr->next))
204	{
205	anptr = ptr->data;
206
207	if (count + strlen(anptr->nick) + 1 > IRCD_BUFSIZE - 2)
208	{
209	sendto_one(source_p, form_str(RPL_WATCHLIST),
210	me.name, source_p->name, buf);
211	buf[0] = '\0';
212	count = strlen(source_p->name) + strlen(me.name) + 10;
213	}
214
215	strcat(buf, " ");
216	strcat(buf, anptr->nick);
217	count += (strlen(anptr->nick) + 1);
218	}
219
220	sendto_one(source_p, form_str(RPL_WATCHLIST),
221	me.name, source_p->name, buf);
222	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
223	me.name, source_p->name, *s);
224	continue;
225	}
226
227	/*
228	* Well that was fun, NOT. Now they want a list of everybody in
229	* their WATCH list AND if they are online or offline? Sheesh,
230	* greedy aren't we?
231	*/
232	if (s == 'L' \|\| s == 'l')
233	{
234	const struct Client *target_p = NULL;
235
236	if (list_requested & 0x2)
237	continue;
238
239	list_requested \|= 0x2;
240
241	DLINK_FOREACH(ptr, source_p->localClient->watches.head)
242	{
243	const struct Watch *anptr = ptr->data;
244
245	if ((target_p = find_person(source_p, anptr->nick)))
246	sendto_one(source_p, form_str(RPL_NOWON), me.name, source_p->name,
247	target_p->name, target_p->username,
248	target_p->host, target_p->tsinfo);
249	/*
250	* But actually, only show them offline if it's a capital
251	* 'L' (full list wanted).
252	*/
253	else if (*s == 'L')
254	sendto_one(source_p, form_str(RPL_NOWOFF), me.name,
255	source_p->name, anptr->nick,
256	"", "", anptr->lasttime);
257	}
258
259	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
260	me.name, source_p->name, *s);
261	continue;
262	}
263
264	/* Hmm.. unknown prefix character.. Ignore it. :-) */
265	}
266	}