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 "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "conf.h"
#include "send.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->tsinfo);
  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:	1834
Committed:	Fri Apr 19 19:50:27 2013 UTC (13 years, 5 months ago) by michael
Content type:	text/x-csrc
File size:	7381 byte(s)
Log Message:	- Revert to -r1831
#	User	Rev	Content
1	michael	876	/*
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	michael	953	* $Id$
24	michael	876	*/
25
26			#include "stdinc.h"
27			#include "client.h"
28			#include "irc_string.h"
29			#include "ircd.h"
30			#include "numeric.h"
31	michael	1309	#include "conf.h"
32	michael	876	#include "send.h"
33			#include "parse.h"
34			#include "modules.h"
35			#include "s_user.h"
36			#include "watch.h"
37
38
39			/*
40			* RPL_NOWON - Online at the moment (Succesfully added to WATCH-list)
41			* RPL_NOWOFF - Offline at the moment (Succesfully added to WATCH-list)
42			* RPL_WATCHOFF - Succesfully removed from WATCH-list.
43			* ERR_TOOMANYWATCH - Take a guess :> Too many WATCH entries.
44			*/
45			static void
46			show_watch(struct Client client_p, const char name,
47	michael	1834	unsigned int rpl1, unsigned int rpl2)
48	michael	876	{
49			const struct Client *target_p = NULL;
50
51			if ((target_p = find_person(client_p, name)))
52	michael	1834	sendto_one(client_p, form_str(rpl1), me.name, client_p->name,
53	michael	876	target_p->name, target_p->username,
54	michael	1241	target_p->host, target_p->tsinfo);
55	michael	876	else
56	michael	1834	sendto_one(client_p, form_str(rpl2), me.name, client_p->name,
57	michael	876	name, "", "", 0);
58			}
59
60			/*
61			* m_watch()
62			*
63			* parv[0] = sender prefix
64			* parv[1] = watch options
65			*/
66			static void
67			m_watch(struct Client client_p, struct Client source_p, int parc, char *parv[])
68			{
69			dlink_node *ptr = NULL;
70			char *s = NULL;
71			char *p = NULL;
72			char *user;
73			char def[2] = "l";
74			unsigned int list_requested = 0;
75
76			/*
77			* Default to 'l' - list who's currently online
78			*/
79			if (parc < 2)
80			parv[1] = def;
81
82			for (s = strtoken(&p, parv[1], ", "); s;
83			s = strtoken(&p, NULL, ", "))
84			{
85			if ((user = strchr(s, '!')))
86			user++ = '\0'; / Not used */
87
88			/*
89			* Prefix of "+", they want to add a name to their WATCH
90			* list.
91			*/
92			if (*s == '+')
93			{
94			if (*(s + 1) != '\0')
95			{
96			if (dlink_list_length(&source_p->localClient->watches) >=
97			ConfigFileEntry.max_watch)
98			{
99	michael	1834	sendto_one(source_p, form_str(ERR_TOOMANYWATCH), me.name,
100	michael	876	source_p->name, s + 1, ConfigFileEntry.max_watch);
101			continue;
102			}
103
104			watch_add_to_hash_table(s + 1, source_p);
105			}
106
107			show_watch(source_p, s + 1, RPL_NOWON, RPL_NOWOFF);
108			continue;
109			}
110
111			/*
112			* Prefix of "-", coward wants to remove somebody from their
113			* WATCH list. So do it. :-)
114			*/
115			if (*s == '-')
116			{
117			watch_del_from_hash_table(s + 1, source_p);
118			show_watch(source_p, s + 1, RPL_WATCHOFF, RPL_WATCHOFF);
119			continue;
120			}
121
122			/*
123			* Fancy "C" or "c", they want to nuke their WATCH list and start
124			* over, so be it.
125			*/
126			if (s == 'C' \|\| s == 'c')
127			{
128			watch_del_watch_list(source_p);
129			continue;
130			}
131
132			/*
133			* Now comes the fun stuff, "S" or "s" returns a status report of
134			* their WATCH list. I imagine this could be CPU intensive if
135			* it's done alot, perhaps an auto-lag on this?
136			*/
137			if (s == 'S' \|\| s == 's')
138			{
139			char buf[IRCD_BUFSIZE] = { '\0' };
140			const struct Watch *anptr = NULL;
141			unsigned int count = 0;
142
143			if (list_requested & 0x1)
144			continue;
145
146			list_requested \|= 0x1;
147
148			/*
149			* Send a list of how many users they have on their WATCH list
150			* and how many WATCH lists they are on.
151			*/
152			if ((anptr = watch_find_hash(source_p->name)))
153			count = dlink_list_length(&anptr->watched_by);
154
155	michael	1834	sendto_one(source_p, form_str(RPL_WATCHSTAT),
156	michael	876	me.name, source_p->name,
157			dlink_list_length(&source_p->localClient->watches), count);
158
159			/*
160			* Send a list of everybody in their WATCH list. Be careful
161			* not to buffer overflow.
162			*/
163			if ((ptr = source_p->localClient->watches.head) == NULL)
164			{
165	michael	1834	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
166	michael	876	me.name, source_p->name, *s);
167			continue;
168			}
169
170			anptr = ptr->data;
171			strlcpy(buf, anptr->nick, sizeof(buf));
172
173			count = strlen(source_p->name) + strlen(me.name) + 10 +
174			strlen(buf);
175
176			while ((ptr = ptr->next))
177			{
178			anptr = ptr->data;
179
180			if (count + strlen(anptr->nick) + 1 > IRCD_BUFSIZE - 2)
181			{
182	michael	1834	sendto_one(source_p, form_str(RPL_WATCHLIST),
183	michael	876	me.name, source_p->name, buf);
184			buf[0] = '\0';
185			count = strlen(source_p->name) + strlen(me.name) + 10;
186			}
187
188			strcat(buf, " ");
189			strcat(buf, anptr->nick);
190			count += (strlen(anptr->nick) + 1);
191			}
192
193	michael	1834	sendto_one(source_p, form_str(RPL_WATCHLIST),
194	michael	876	me.name, source_p->name, buf);
195	michael	1834	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
196	michael	876	me.name, source_p->name, *s);
197			continue;
198			}
199
200			/*
201			* Well that was fun, NOT. Now they want a list of everybody in
202			* their WATCH list AND if they are online or offline? Sheesh,
203			* greedy aren't we?
204			*/
205			if (s == 'L' \|\| s == 'l')
206			{
207			const struct Client *target_p = NULL;
208
209			if (list_requested & 0x2)
210			continue;
211
212			list_requested \|= 0x2;
213
214			DLINK_FOREACH(ptr, source_p->localClient->watches.head)
215			{
216			const struct Watch *anptr = ptr->data;
217
218			if ((target_p = find_person(source_p, anptr->nick)))
219	michael	1834	sendto_one(source_p, form_str(RPL_NOWON), me.name, source_p->name,
220	michael	876	target_p->name, target_p->username,
221			target_p->host, target_p->tsinfo);
222			/*
223			* But actually, only show them offline if it's a capital
224			* 'L' (full list wanted).
225			*/
226			else if (*s == 'L')
227	michael	1834	sendto_one(source_p, form_str(RPL_NOWOFF), me.name,
228	michael	876	source_p->name, anptr->nick,
229			"", "", anptr->lasttime);
230			}
231
232	michael	1834	sendto_one(source_p, form_str(RPL_ENDOFWATCHLIST),
233	michael	876	me.name, source_p->name, *s);
234			continue;
235			}
236
237			/* Hmm.. unknown prefix character.. Ignore it. :-) */
238			}
239			}
240	michael	1230
241			static struct Message watch_msgtab = {
242			"WATCH", 0, 0, 0, 1, MFLG_SLOW, 0,
243			{ m_unregistered, m_watch, m_ignore, m_ignore, m_watch, m_ignore }
244			};
245
246			static void
247			module_init(void)
248			{
249			mod_add_cmd(&watch_msgtab);
250			add_isupport("WATCH", NULL, ConfigFileEntry.max_watch);
251			}
252
253			static void
254			module_exit(void)
255			{
256			mod_del_cmd(&watch_msgtab);
257			delete_isupport("WATCH");
258			}
259
260			struct module module_entry = {
261			.node = { NULL, NULL, NULL },
262			.name = NULL,
263			.version = "$Revision$",
264			.handle = NULL,
265			.modinit = module_init,
266			.modexit = module_exit,
267			.flags = 0
268			};