ircd-hybrid-8/modules/m_list.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_list.c: List channel given or all channels.
 *
 *  Copyright (C) 2002 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: m_list.c,v 1.67 2005/07/11 19:40:27 adx Exp $
 */

#include "stdinc.h"
#include "tools.h"
#include "handlers.h"
#include "channel.h"
#include "channel_mode.h"
#include "client.h"
#include "hash.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "s_conf.h"
#include "s_serv.h"
#include "send.h"
#include "list.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"
#include "s_user.h"

static void m_list(struct Client *, struct Client *, int, char **);
static void ms_list(struct Client *, struct Client *, int, char **);
static void mo_list(struct Client *, struct Client *, int, char **);

struct Message list_msgtab = {
  "LIST", 0, 0, 0, 0, MFLG_SLOW, 0,
  {m_unregistered, m_list, ms_list, m_ignore, mo_list, m_ignore}
};

#ifndef STATIC_MODULES
void
_modinit(void)
{
  mod_add_cmd(&list_msgtab);
  add_isupport("ELIST", "CMNTU", -1);
  add_isupport("SAFELIST", NULL, -1);
}

void
_moddeinit(void)
{
  mod_del_cmd(&list_msgtab);
  delete_isupport("ELIST");
  delete_isupport("SAFELIST");
}

const char *_version = "$Revision: 1.67 $";
#endif

static int
has_wildcards(const char *s)
{
  char c;

  while ((c = *s++))
    if (IsMWildChar(c))
      return 1;

  return 0;
}

static void
do_list(struct Client *source_p, int parc, char *parv[])
{
  struct ListTask *lt;
  int no_masked_channels;

  if (MyConnect(source_p))
  {
    if (source_p->localClient->list_task != NULL)
    {
      free_list_task(source_p->localClient->list_task, source_p);
      sendto_one(source_p, form_str(RPL_LISTEND), me.name, source_p->name);
      return;
    }
  }

  lt = (struct ListTask *) MyMalloc(sizeof(struct ListTask));
  lt->users_max = UINT_MAX;
  lt->created_max = UINT_MAX;
  lt->topicts_max = UINT_MAX;
  if (MyConnect(source_p))
    source_p->localClient->list_task = lt;
  no_masked_channels = 1;

  if (parc > 1)
  {
    char *opt, *save;
    dlink_list *list;
    int i, errors = 0;

    for (opt = strtoken(&save, parv[1], ","); opt != NULL;
         opt = strtoken(&save, NULL, ","))
      switch (*opt)
      {
        case '<': if ((i = atoi(opt + 1)) > 0)
                    lt->users_max = (unsigned int) i - 1;
                  else
                    errors = 1;
                  break;
        case '>': if ((i = atoi(opt + 1)) >= 0)
                    lt->users_min = (unsigned int) i + 1;
                  else
                    errors = 1;
                  break;
        case '-': break;
        case 'C':
        case 'c': switch (*++opt)
                  {
                    case '<': if ((i = atoi(opt + 1)) >= 0)
                                lt->created_max = (unsigned int) (CurrentTime
                                                  - 60 * i);
                              else
                                errors = 1;
                              break;
                    case '>': if ((i = atoi(opt + 1)) >= 0)
                                lt->created_min = (unsigned int) (CurrentTime
                                                  - 60 * i);
                              else
                                errors = 1;
                              break;
                    default: errors = 1;
                  }
                  break;
        case 'T':
        case 't': switch (*++opt)
                  {
                    case '<': if ((i = atoi(opt + 1)) >= 0)
                                lt->topicts_min = (unsigned int) (CurrentTime
                                                  - 60 * i);
                              else
                                errors = 1;
                              break;
                    case '>': if ((i = atoi(opt + 1)) >= 0)
                                lt->topicts_max = (unsigned int) (CurrentTime
                                                  - 60 * i);
                              else
                                errors = 1;
                              break;
                    default: errors = 1;
                  }
                  break;
        default: if (*opt == '!')
                 {
                   list = &lt->hide_mask;
                   opt++;
                 }
                 else list = &lt->show_mask;

                 if (has_wildcards(opt + !!IsChanPrefix(*opt)))
                 {
                   if (list == &lt->show_mask)
                     no_masked_channels = 0;
                 }
                 else if (!IsChanPrefix(*opt))
                   errors = 1;
                 if (!errors)
                 {
                   char *s;
                   DupString(s, opt);
                   dlinkAdd(s, make_dlink_node(), list);
                 }
      }
    if (errors)
    {
      free_list_task(lt, source_p);
      sendto_one(source_p, form_str(ERR_LISTSYNTAX),
                 MyConnect(source_p) ? me.name : ID(&me),
                 MyConnect(source_p) ? source_p->name : ID(source_p));
      return;
    }
  }


  if (MyConnect(source_p))
    dlinkAdd(source_p, make_dlink_node(), &listing_client_list);
  sendto_one(source_p, form_str(RPL_LISTSTART),
             MyConnect(source_p) ? me.name : ID(&me),
             MyConnect(source_p) ? source_p->name : ID(source_p));
  safe_list_channels(source_p, lt, no_masked_channels &&
                     lt->show_mask.head != NULL, !MyConnect(source_p));
}

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

  /* If not a LazyLink connection, see if its still paced */
  /* If we're forwarding this to uplinks.. it should be paced due to the
   * traffic involved in /list.. -- fl_ */
  if (((last_used + ConfigFileEntry.pace_wait) > CurrentTime))
  {
    sendto_one(source_p,form_str(RPL_LOAD2HI),me.name,parv[0]);
    return;
  }
  else
    last_used = CurrentTime;

  /* If its a LazyLinks connection, let uplink handle the list */
  if (uplink && IsCapable(uplink, CAP_LL))
  {
    if (parc < 2)
      sendto_one(uplink, ":%s LIST", source_p->name);
    else
      sendto_one(uplink, ":%s LIST %s", source_p->name, parv[1]);
    return;
  }

  do_list(source_p, parc, parv);
}

/*
** mo_list
**      parv[0] = sender prefix
**      parv[1] = channel
*/
static void
mo_list(struct Client *client_p, struct Client *source_p,
        int parc, char *parv[])
{
  /* If its a LazyLinks connection, let uplink handle the list
   * even for opers!
   */

  if (uplink && IsCapable(uplink, CAP_LL))
  {
    if (parc < 2)
      sendto_one(uplink, ":%s LIST", source_p->name);
    else
      sendto_one(uplink, ":%s LIST %s", source_p->name, parv[1]);
    return;
  }

  do_list(source_p, parc, parv);
}

/*
** ms_list
**      parv[0] = sender prefix
**      parv[1] = channel
*/
static void
ms_list(struct Client *client_p, struct Client *source_p,
        int parc, char *parv[])
{
  /* Only allow remote list if LazyLink request */
  if (ServerInfo.hub)
  {
    if (!IsCapable(client_p->from, CAP_LL) && !MyConnect(source_p))
      return;

    do_list(source_p, parc, parv);
  }
}
Revision:	30
Committed:	Sun Oct 2 20:03:27 2005 UTC (20 years, 9 months ago) by adx
Content type:	text/x-csrc
Original Path:	*ircd-hybrid/modules/m_list.c*
File size:	7124 byte(s)
Log Message:	- imported sources - can be moved later according to the directory/branching scheme, but we need the svn up
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* m_list.c: List channel given or all channels.
4			*
5			* Copyright (C) 2002 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: m_list.c,v 1.67 2005/07/11 19:40:27 adx Exp $
23			*/
24
25			#include "stdinc.h"
26			#include "tools.h"
27			#include "handlers.h"
28			#include "channel.h"
29			#include "channel_mode.h"
30			#include "client.h"
31			#include "hash.h"
32			#include "irc_string.h"
33			#include "ircd.h"
34			#include "numeric.h"
35			#include "s_conf.h"
36			#include "s_serv.h"
37			#include "send.h"
38			#include "list.h"
39			#include "msg.h"
40			#include "parse.h"
41			#include "modules.h"
42			#include "s_user.h"
43
44			static void m_list(struct Client , struct Client , int, char **);
45			static void ms_list(struct Client , struct Client , int, char **);
46			static void mo_list(struct Client , struct Client , int, char **);
47
48			struct Message list_msgtab = {
49			"LIST", 0, 0, 0, 0, MFLG_SLOW, 0,
50			{m_unregistered, m_list, ms_list, m_ignore, mo_list, m_ignore}
51			};
52
53			#ifndef STATIC_MODULES
54			void
55			_modinit(void)
56			{
57			mod_add_cmd(&list_msgtab);
58			add_isupport("ELIST", "CMNTU", -1);
59			add_isupport("SAFELIST", NULL, -1);
60			}
61
62			void
63			_moddeinit(void)
64			{
65			mod_del_cmd(&list_msgtab);
66			delete_isupport("ELIST");
67			delete_isupport("SAFELIST");
68			}
69
70			const char *_version = "$Revision: 1.67 $";
71			#endif
72
73			static int
74			has_wildcards(const char *s)
75			{
76			char c;
77
78			while ((c = *s++))
79			if (IsMWildChar(c))
80			return 1;
81
82			return 0;
83			}
84
85			static void
86			do_list(struct Client source_p, int parc, char parv[])
87			{
88			struct ListTask *lt;
89			int no_masked_channels;
90
91			if (MyConnect(source_p))
92			{
93			if (source_p->localClient->list_task != NULL)
94			{
95			free_list_task(source_p->localClient->list_task, source_p);
96			sendto_one(source_p, form_str(RPL_LISTEND), me.name, source_p->name);
97			return;
98			}
99			}
100
101			lt = (struct ListTask *) MyMalloc(sizeof(struct ListTask));
102			lt->users_max = UINT_MAX;
103			lt->created_max = UINT_MAX;
104			lt->topicts_max = UINT_MAX;
105			if (MyConnect(source_p))
106			source_p->localClient->list_task = lt;
107			no_masked_channels = 1;
108
109			if (parc > 1)
110			{
111			char opt, save;
112			dlink_list *list;
113			int i, errors = 0;
114
115			for (opt = strtoken(&save, parv[1], ","); opt != NULL;
116			opt = strtoken(&save, NULL, ","))
117			switch (*opt)
118			{
119			case '<': if ((i = atoi(opt + 1)) > 0)
120			lt->users_max = (unsigned int) i - 1;
121			else
122			errors = 1;
123			break;
124			case '>': if ((i = atoi(opt + 1)) >= 0)
125			lt->users_min = (unsigned int) i + 1;
126			else
127			errors = 1;
128			break;
129			case '-': break;
130			case 'C':
131			case 'c': switch (*++opt)
132			{
133			case '<': if ((i = atoi(opt + 1)) >= 0)
134			lt->created_max = (unsigned int) (CurrentTime
135			- 60 * i);
136			else
137			errors = 1;
138			break;
139			case '>': if ((i = atoi(opt + 1)) >= 0)
140			lt->created_min = (unsigned int) (CurrentTime
141			- 60 * i);
142			else
143			errors = 1;
144			break;
145			default: errors = 1;
146			}
147			break;
148			case 'T':
149			case 't': switch (*++opt)
150			{
151			case '<': if ((i = atoi(opt + 1)) >= 0)
152			lt->topicts_min = (unsigned int) (CurrentTime
153			- 60 * i);
154			else
155			errors = 1;
156			break;
157			case '>': if ((i = atoi(opt + 1)) >= 0)
158			lt->topicts_max = (unsigned int) (CurrentTime
159			- 60 * i);
160			else
161			errors = 1;
162			break;
163			default: errors = 1;
164			}
165			break;
166			default: if (*opt == '!')
167			{
168			list = &lt->hide_mask;
169			opt++;
170			}
171			else list = &lt->show_mask;
172
173			if (has_wildcards(opt + !!IsChanPrefix(*opt)))
174			{
175			if (list == &lt->show_mask)
176			no_masked_channels = 0;
177			}
178			else if (!IsChanPrefix(*opt))
179			errors = 1;
180			if (!errors)
181			{
182			char *s;
183			DupString(s, opt);
184			dlinkAdd(s, make_dlink_node(), list);
185			}
186			}
187			if (errors)
188			{
189			free_list_task(lt, source_p);
190			sendto_one(source_p, form_str(ERR_LISTSYNTAX),
191			MyConnect(source_p) ? me.name : ID(&me),
192			MyConnect(source_p) ? source_p->name : ID(source_p));
193			return;
194			}
195			}
196
197
198			if (MyConnect(source_p))
199			dlinkAdd(source_p, make_dlink_node(), &listing_client_list);
200			sendto_one(source_p, form_str(RPL_LISTSTART),
201			MyConnect(source_p) ? me.name : ID(&me),
202			MyConnect(source_p) ? source_p->name : ID(source_p));
203			safe_list_channels(source_p, lt, no_masked_channels &&
204			lt->show_mask.head != NULL, !MyConnect(source_p));
205			}
206
207			/*
208			** m_list
209			** parv[0] = sender prefix
210			** parv[1] = channel
211			*/
212			static void
213			m_list(struct Client client_p, struct Client source_p,
214			int parc, char *parv[])
215			{
216			static time_t last_used = 0;
217
218			/* If not a LazyLink connection, see if its still paced */
219			/* If we're forwarding this to uplinks.. it should be paced due to the
220			* traffic involved in /list.. -- fl_ */
221			if (((last_used + ConfigFileEntry.pace_wait) > CurrentTime))
222			{
223			sendto_one(source_p,form_str(RPL_LOAD2HI),me.name,parv[0]);
224			return;
225			}
226			else
227			last_used = CurrentTime;
228
229			/* If its a LazyLinks connection, let uplink handle the list */
230			if (uplink && IsCapable(uplink, CAP_LL))
231			{
232			if (parc < 2)
233			sendto_one(uplink, ":%s LIST", source_p->name);
234			else
235			sendto_one(uplink, ":%s LIST %s", source_p->name, parv[1]);
236			return;
237			}
238
239			do_list(source_p, parc, parv);
240			}
241
242			/*
243			** mo_list
244			** parv[0] = sender prefix
245			** parv[1] = channel
246			*/
247			static void
248			mo_list(struct Client client_p, struct Client source_p,
249			int parc, char *parv[])
250			{
251			/* If its a LazyLinks connection, let uplink handle the list
252			* even for opers!
253			*/
254
255			if (uplink && IsCapable(uplink, CAP_LL))
256			{
257			if (parc < 2)
258			sendto_one(uplink, ":%s LIST", source_p->name);
259			else
260			sendto_one(uplink, ":%s LIST %s", source_p->name, parv[1]);
261			return;
262			}
263
264			do_list(source_p, parc, parv);
265			}
266
267			/*
268			** ms_list
269			** parv[0] = sender prefix
270			** parv[1] = channel
271			*/
272			static void
273			ms_list(struct Client client_p, struct Client source_p,
274			int parc, char *parv[])
275			{
276			/* Only allow remote list if LazyLink request */
277			if (ServerInfo.hub)
278			{
279			if (!IsCapable(client_p->from, CAP_LL) && !MyConnect(source_p))
280			return;
281
282			do_list(source_p, parc, parv);
283			}
284			}