trunk/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 }
};

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 = "$Revision$";

/*
 * 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:	1121
Committed:	Sun Jan 9 11:03:03 2011 UTC (15 years, 9 months ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid-7.3/modules/m_watch.c*
File size:	7330 byte(s)
Error occurred while calculating annotation data.
Log Message:	- removed all instances of STATIC_MODULES since we don't have static modules anymore - removed m_mkpasswd module from contrib
#	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	void
49	_modinit(void)
50	{
51	mod_add_cmd(&watch_msgtab);
52	add_isupport("WATCH", NULL, ConfigFileEntry.max_watch);
53	}
54
55	void
56	_moddeinit(void)
57	{
58	mod_del_cmd(&watch_msgtab);
59	delete_isupport("WATCH");
60	}
61
62	const char *_version = "$Revision$";
63
64	/*
65	* RPL_NOWON - Online at the moment (Succesfully added to WATCH-list)
66	* RPL_NOWOFF - Offline at the moment (Succesfully added to WATCH-list)
67	* RPL_WATCHOFF - Succesfully removed from WATCH-list.
68	* ERR_TOOMANYWATCH - Take a guess :> Too many WATCH entries.
69	*/
70	static void
71	show_watch(struct Client client_p, const char name,
72	unsigned int rpl1, unsigned int rpl2)
73	{
74	const struct Client *target_p = NULL;
75
76	if ((target_p = find_person(client_p, name)))
77	sendto_one(client_p, form_str(rpl1), me.name, client_p->name,
78	target_p->name, target_p->username,
79	target_p->host, target_p->lasttime);
80	else
81	sendto_one(client_p, form_str(rpl2), me.name, client_p->name,
82	name, "", "", 0);
83	}
84
85	/*
86	* m_watch()
87	*
88	* parv[0] = sender prefix
89	* parv[1] = watch options
90	*/
91	static void
92	m_watch(struct Client client_p, struct Client source_p, int parc, char *parv[])
93	{
94	dlink_node *ptr = NULL;
95	char *s = NULL;
96	char *p = NULL;
97	char *user;
98	char def[2] = "l";
99	unsigned int list_requested = 0;
100
101	/*
102	* Default to 'l' - list who's currently online
103	*/
104	if (parc < 2)
105	parv[1] = def;
106
107	for (s = strtoken(&p, parv[1], ", "); s;
108	s = strtoken(&p, NULL, ", "))
109	{
110	if ((user = strchr(s, '!')))
111	user++ = '\0'; / Not used */
112
113	/*
114	* Prefix of "+", they want to add a name to their WATCH
115	* list.
116	*/
117	if (*s == '+')
118	{
119	if (*(s + 1) != '\0')
120	{
121	if (dlink_list_length(&source_p->localClient->watches) >=
122	ConfigFileEntry.max_watch)
123	{
124	sendto_one(source_p, form_str(ERR_TOOMANYWATCH), me.name,
125	source_p->name, s + 1, ConfigFileEntry.max_watch);
126	continue;
127	}
128
129	watch_add_to_hash_table(s + 1, source_p);
130	}
131
132	show_watch(source_p, s + 1, RPL_NOWON, RPL_NOWOFF);
133	continue;
134	}
135
136	/*
137	* Prefix of "-", coward wants to remove somebody from their
138	* WATCH list. So do it. :-)
139	*/
140	if (*s == '-')
141	{
142	watch_del_from_hash_table(s + 1, source_p);
143	show_watch(source_p, s + 1, RPL_WATCHOFF, RPL_WATCHOFF);
144	continue;
145	}
146
147	/*
148	* Fancy "C" or "c", they want to nuke their WATCH list and start
149	* over, so be it.
150	*/
151	if (s == 'C' \|\| s == 'c')
152	{
153	watch_del_watch_list(source_p);
154	continue;
155	}
156
157	/*
158	* Now comes the fun stuff, "S" or "s" returns a status report of
159	* their WATCH list. I imagine this could be CPU intensive if
160	* it's done alot, perhaps an auto-lag on this?
161	*/
162	if (s == 'S' \|\| s == 's')
163	{
164	char buf[IRCD_BUFSIZE] = { '\0' };
165	const struct Watch *anptr = NULL;
166	unsigned int count = 0;
167
168	if (list_requested & 0x1)
169	continue;
170
171	list_requested \|= 0x1;
172
173	/*
174	* Send a list of how many users they have on their WATCH list
175	* and how many WATCH lists they are on.
176	*/
177	if ((anptr = watch_find_hash(source_p->name)))
178	count = dlink_list_length(&anptr->watched_by);
179
180	sendto_one(source_p, form_str(RPL_WATCHSTAT),
181	me.name, source_p->name,
182	dlink_list_length(&source_p->localClient->watches), count);
183
184	/*
185	* Send a list of everybody in their WATCH list. Be careful
186	* not to buffer overflow.
187	*/
188	if ((ptr = source_p->localClient->watches.head) == NULL)
189	{
190	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
191	me.name, source_p->name, *s);
192	continue;
193	}
194
195	anptr = ptr->data;
196	strlcpy(buf, anptr->nick, sizeof(buf));
197
198	count = strlen(source_p->name) + strlen(me.name) + 10 +
199	strlen(buf);
200
201	while ((ptr = ptr->next))
202	{
203	anptr = ptr->data;
204
205	if (count + strlen(anptr->nick) + 1 > IRCD_BUFSIZE - 2)
206	{
207	sendto_one(source_p, form_str(RPL_WATCHLIST),
208	me.name, source_p->name, buf);
209	buf[0] = '\0';
210	count = strlen(source_p->name) + strlen(me.name) + 10;
211	}
212
213	strcat(buf, " ");
214	strcat(buf, anptr->nick);
215	count += (strlen(anptr->nick) + 1);
216	}
217
218	sendto_one(source_p, form_str(RPL_WATCHLIST),
219	me.name, source_p->name, buf);
220	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
221	me.name, source_p->name, *s);
222	continue;
223	}
224
225	/*
226	* Well that was fun, NOT. Now they want a list of everybody in
227	* their WATCH list AND if they are online or offline? Sheesh,
228	* greedy aren't we?
229	*/
230	if (s == 'L' \|\| s == 'l')
231	{
232	const struct Client *target_p = NULL;
233
234	if (list_requested & 0x2)
235	continue;
236
237	list_requested \|= 0x2;
238
239	DLINK_FOREACH(ptr, source_p->localClient->watches.head)
240	{
241	const struct Watch *anptr = ptr->data;
242
243	if ((target_p = find_person(source_p, anptr->nick)))
244	sendto_one(source_p, form_str(RPL_NOWON), me.name, source_p->name,
245	target_p->name, target_p->username,
246	target_p->host, target_p->tsinfo);
247	/*
248	* But actually, only show them offline if it's a capital
249	* 'L' (full list wanted).
250	*/
251	else if (*s == 'L')
252	sendto_one(source_p, form_str(RPL_NOWOFF), me.name,
253	source_p->name, anptr->nick,
254	"", "", anptr->lasttime);
255	}
256
257	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
258	me.name, source_p->name, *s);
259	continue;
260	}
261
262	/* Hmm.. unknown prefix character.. Ignore it. :-) */
263	}
264	}