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"


/*
 * 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. :-) */
  }
}

static struct Message watch_msgtab = {
  "WATCH", 0, 0, 0, 1, MFLG_SLOW, 0,
  { m_unregistered, m_watch, m_ignore, m_ignore, m_watch, m_ignore }
};

static void
module_init(void)
{
  mod_add_cmd(&watch_msgtab);
  add_isupport("WATCH", NULL, ConfigFileEntry.max_watch);
}

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

struct module module_entry = {
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	1230
Committed:	Thu Sep 22 19:41:19 2011 UTC (15 years ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid-8/modules/m_watch.c*
File size:	7449 byte(s)
Error occurred while calculating annotation data.
Log Message:	- cleanup module loader. Make module api more flexible
#	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
42	/*
43	* RPL_NOWON - Online at the moment (Succesfully added to WATCH-list)
44	* RPL_NOWOFF - Offline at the moment (Succesfully added to WATCH-list)
45	* RPL_WATCHOFF - Succesfully removed from WATCH-list.
46	* ERR_TOOMANYWATCH - Take a guess :> Too many WATCH entries.
47	*/
48	static void
49	show_watch(struct Client client_p, const char name,
50	unsigned int rpl1, unsigned int rpl2)
51	{
52	const struct Client *target_p = NULL;
53
54	if ((target_p = find_person(client_p, name)))
55	sendto_one(client_p, form_str(rpl1), me.name, client_p->name,
56	target_p->name, target_p->username,
57	target_p->host, target_p->lasttime);
58	else
59	sendto_one(client_p, form_str(rpl2), me.name, client_p->name,
60	name, "", "", 0);
61	}
62
63	/*
64	* m_watch()
65	*
66	* parv[0] = sender prefix
67	* parv[1] = watch options
68	*/
69	static void
70	m_watch(struct Client client_p, struct Client source_p, int parc, char *parv[])
71	{
72	dlink_node *ptr = NULL;
73	char *s = NULL;
74	char *p = NULL;
75	char *user;
76	char def[2] = "l";
77	unsigned int list_requested = 0;
78
79	/*
80	* Default to 'l' - list who's currently online
81	*/
82	if (parc < 2)
83	parv[1] = def;
84
85	for (s = strtoken(&p, parv[1], ", "); s;
86	s = strtoken(&p, NULL, ", "))
87	{
88	if ((user = strchr(s, '!')))
89	user++ = '\0'; / Not used */
90
91	/*
92	* Prefix of "+", they want to add a name to their WATCH
93	* list.
94	*/
95	if (*s == '+')
96	{
97	if (*(s + 1) != '\0')
98	{
99	if (dlink_list_length(&source_p->localClient->watches) >=
100	ConfigFileEntry.max_watch)
101	{
102	sendto_one(source_p, form_str(ERR_TOOMANYWATCH), me.name,
103	source_p->name, s + 1, ConfigFileEntry.max_watch);
104	continue;
105	}
106
107	watch_add_to_hash_table(s + 1, source_p);
108	}
109
110	show_watch(source_p, s + 1, RPL_NOWON, RPL_NOWOFF);
111	continue;
112	}
113
114	/*
115	* Prefix of "-", coward wants to remove somebody from their
116	* WATCH list. So do it. :-)
117	*/
118	if (*s == '-')
119	{
120	watch_del_from_hash_table(s + 1, source_p);
121	show_watch(source_p, s + 1, RPL_WATCHOFF, RPL_WATCHOFF);
122	continue;
123	}
124
125	/*
126	* Fancy "C" or "c", they want to nuke their WATCH list and start
127	* over, so be it.
128	*/
129	if (s == 'C' \|\| s == 'c')
130	{
131	watch_del_watch_list(source_p);
132	continue;
133	}
134
135	/*
136	* Now comes the fun stuff, "S" or "s" returns a status report of
137	* their WATCH list. I imagine this could be CPU intensive if
138	* it's done alot, perhaps an auto-lag on this?
139	*/
140	if (s == 'S' \|\| s == 's')
141	{
142	char buf[IRCD_BUFSIZE] = { '\0' };
143	const struct Watch *anptr = NULL;
144	unsigned int count = 0;
145
146	if (list_requested & 0x1)
147	continue;
148
149	list_requested \|= 0x1;
150
151	/*
152	* Send a list of how many users they have on their WATCH list
153	* and how many WATCH lists they are on.
154	*/
155	if ((anptr = watch_find_hash(source_p->name)))
156	count = dlink_list_length(&anptr->watched_by);
157
158	sendto_one(source_p, form_str(RPL_WATCHSTAT),
159	me.name, source_p->name,
160	dlink_list_length(&source_p->localClient->watches), count);
161
162	/*
163	* Send a list of everybody in their WATCH list. Be careful
164	* not to buffer overflow.
165	*/
166	if ((ptr = source_p->localClient->watches.head) == NULL)
167	{
168	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
169	me.name, source_p->name, *s);
170	continue;
171	}
172
173	anptr = ptr->data;
174	strlcpy(buf, anptr->nick, sizeof(buf));
175
176	count = strlen(source_p->name) + strlen(me.name) + 10 +
177	strlen(buf);
178
179	while ((ptr = ptr->next))
180	{
181	anptr = ptr->data;
182
183	if (count + strlen(anptr->nick) + 1 > IRCD_BUFSIZE - 2)
184	{
185	sendto_one(source_p, form_str(RPL_WATCHLIST),
186	me.name, source_p->name, buf);
187	buf[0] = '\0';
188	count = strlen(source_p->name) + strlen(me.name) + 10;
189	}
190
191	strcat(buf, " ");
192	strcat(buf, anptr->nick);
193	count += (strlen(anptr->nick) + 1);
194	}
195
196	sendto_one(source_p, form_str(RPL_WATCHLIST),
197	me.name, source_p->name, buf);
198	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
199	me.name, source_p->name, *s);
200	continue;
201	}
202
203	/*
204	* Well that was fun, NOT. Now they want a list of everybody in
205	* their WATCH list AND if they are online or offline? Sheesh,
206	* greedy aren't we?
207	*/
208	if (s == 'L' \|\| s == 'l')
209	{
210	const struct Client *target_p = NULL;
211
212	if (list_requested & 0x2)
213	continue;
214
215	list_requested \|= 0x2;
216
217	DLINK_FOREACH(ptr, source_p->localClient->watches.head)
218	{
219	const struct Watch *anptr = ptr->data;
220
221	if ((target_p = find_person(source_p, anptr->nick)))
222	sendto_one(source_p, form_str(RPL_NOWON), me.name, source_p->name,
223	target_p->name, target_p->username,
224	target_p->host, target_p->tsinfo);
225	/*
226	* But actually, only show them offline if it's a capital
227	* 'L' (full list wanted).
228	*/
229	else if (*s == 'L')
230	sendto_one(source_p, form_str(RPL_NOWOFF), me.name,
231	source_p->name, anptr->nick,
232	"", "", anptr->lasttime);
233	}
234
235	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
236	me.name, source_p->name, *s);
237	continue;
238	}
239
240	/* Hmm.. unknown prefix character.. Ignore it. :-) */
241	}
242	}
243
244	static struct Message watch_msgtab = {
245	"WATCH", 0, 0, 0, 1, MFLG_SLOW, 0,
246	{ m_unregistered, m_watch, m_ignore, m_ignore, m_watch, m_ignore }
247	};
248
249	static void
250	module_init(void)
251	{
252	mod_add_cmd(&watch_msgtab);
253	add_isupport("WATCH", NULL, ConfigFileEntry.max_watch);
254	}
255
256	static void
257	module_exit(void)
258	{
259	mod_del_cmd(&watch_msgtab);
260	delete_isupport("WATCH");
261	}
262
263	struct module module_entry = {
264	.node = { NULL, NULL, NULL },
265	.name = NULL,
266	.version = "$Revision$",
267	.handle = NULL,
268	.modinit = module_init,
269	.modexit = module_exit,
270	.flags = 0
271	};