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
 *
 *  $Id$
 */

#include "stdinc.h"
#include "list.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 "msg.h"
#include "parse.h"
#include "modules.h"
#include "s_user.h"

static void m_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, MAXPARA, MFLG_SLOW, 0,
  {m_unregistered, m_list, m_ignore, m_ignore, mo_list, m_ignore}
};

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 = "$Revision$";

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 (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 = MyMalloc(sizeof(struct ListTask));
  lt->users_max = UINT_MAX;
  lt->created_max = UINT_MAX;
  lt->topicts_max = UINT_MAX;
  source_p->localClient->list_task = lt;

  no_masked_channels = 1;

  if (parc > 1)
  {
    char *opt, *save = NULL;
    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),
                 me.name, source_p->name);
      return;
    }
  }


  dlinkAdd(source_p, make_dlink_node(), &listing_client_list);

  sendto_one(source_p, form_str(RPL_LISTSTART),
             me.name, source_p->name);
  safe_list_channels(source_p, lt, no_masked_channels &&
                     lt->show_mask.head != NULL);
}

/*
** 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 (((last_used + ConfigFileEntry.pace_wait) > CurrentTime))
  {
    sendto_one(source_p, form_str(RPL_LOAD2HI), me.name, parv[0]);
    return;
  }

  last_used = CurrentTime;

  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[])
{
  do_list(source_p, parc, parv);
}
Revision:	1178
Committed:	Mon Aug 15 08:11:31 2011 UTC (14 years, 11 months ago) by michael
Content type:	text/x-csrc
File size:	5626 byte(s)
Log Message:	- Cleanup and restore older parts of the irc-command parser. Gives back ability to specify maximum amount of parameters that are processed within a command.
#	Content
1	/*
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	* $Id$
23	*/
24
25	#include "stdinc.h"
26	#include "list.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 "msg.h"
39	#include "parse.h"
40	#include "modules.h"
41	#include "s_user.h"
42
43	static void m_list(struct Client , struct Client , int, char *[]);
44	static void mo_list(struct Client , struct Client , int, char *[]);
45
46	struct Message list_msgtab = {
47	"LIST", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
48	{m_unregistered, m_list, m_ignore, m_ignore, mo_list, m_ignore}
49	};
50
51	void
52	_modinit(void)
53	{
54	mod_add_cmd(&list_msgtab);
55	add_isupport("ELIST", "CMNTU", -1);
56	add_isupport("SAFELIST", NULL, -1);
57	}
58
59	void
60	_moddeinit(void)
61	{
62	mod_del_cmd(&list_msgtab);
63	delete_isupport("ELIST");
64	delete_isupport("SAFELIST");
65	}
66
67	const char *_version = "$Revision$";
68
69	static int
70	has_wildcards(const char *s)
71	{
72	char c;
73
74	while ((c = *s++))
75	if (IsMWildChar(c))
76	return 1;
77
78	return 0;
79	}
80
81	static void
82	do_list(struct Client source_p, int parc, char parv[])
83	{
84	struct ListTask *lt;
85	int no_masked_channels;
86
87	if (source_p->localClient->list_task != NULL)
88	{
89	free_list_task(source_p->localClient->list_task, source_p);
90	sendto_one(source_p, form_str(RPL_LISTEND), me.name, source_p->name);
91	return;
92	}
93
94	lt = MyMalloc(sizeof(struct ListTask));
95	lt->users_max = UINT_MAX;
96	lt->created_max = UINT_MAX;
97	lt->topicts_max = UINT_MAX;
98	source_p->localClient->list_task = lt;
99
100	no_masked_channels = 1;
101
102	if (parc > 1)
103	{
104	char opt, save = NULL;
105	dlink_list *list;
106	int i, errors = 0;
107
108	for (opt = strtoken(&save, parv[1], ","); opt != NULL;
109	opt = strtoken(&save, NULL, ","))
110	switch (*opt)
111	{
112	case '<': if ((i = atoi(opt + 1)) > 0)
113	lt->users_max = (unsigned int) i - 1;
114	else
115	errors = 1;
116	break;
117	case '>': if ((i = atoi(opt + 1)) >= 0)
118	lt->users_min = (unsigned int) i + 1;
119	else
120	errors = 1;
121	break;
122	case '-': break;
123	case 'C':
124	case 'c': switch (*++opt)
125	{
126	case '<': if ((i = atoi(opt + 1)) >= 0)
127	lt->created_max = (unsigned int) (CurrentTime
128	- 60 * i);
129	else
130	errors = 1;
131	break;
132	case '>': if ((i = atoi(opt + 1)) >= 0)
133	lt->created_min = (unsigned int) (CurrentTime
134	- 60 * i);
135	else
136	errors = 1;
137	break;
138	default: errors = 1;
139	}
140	break;
141	case 'T':
142	case 't': switch (*++opt)
143	{
144	case '<': if ((i = atoi(opt + 1)) >= 0)
145	lt->topicts_min = (unsigned int) (CurrentTime
146	- 60 * i);
147	else
148	errors = 1;
149	break;
150	case '>': if ((i = atoi(opt + 1)) >= 0)
151	lt->topicts_max = (unsigned int) (CurrentTime
152	- 60 * i);
153	else
154	errors = 1;
155	break;
156	default: errors = 1;
157	}
158	break;
159	default: if (*opt == '!')
160	{
161	list = &lt->hide_mask;
162	opt++;
163	}
164	else list = &lt->show_mask;
165
166	if (has_wildcards(opt + !!IsChanPrefix(*opt)))
167	{
168	if (list == &lt->show_mask)
169	no_masked_channels = 0;
170	}
171	else if (!IsChanPrefix(*opt))
172	errors = 1;
173	if (!errors)
174	{
175	char *s;
176	DupString(s, opt);
177	dlinkAdd(s, make_dlink_node(), list);
178	}
179	}
180	if (errors)
181	{
182	free_list_task(lt, source_p);
183	sendto_one(source_p, form_str(ERR_LISTSYNTAX),
184	me.name, source_p->name);
185	return;
186	}
187	}
188
189
190	dlinkAdd(source_p, make_dlink_node(), &listing_client_list);
191
192	sendto_one(source_p, form_str(RPL_LISTSTART),
193	me.name, source_p->name);
194	safe_list_channels(source_p, lt, no_masked_channels &&
195	lt->show_mask.head != NULL);
196	}
197
198	/*
199	** m_list
200	** parv[0] = sender prefix
201	** parv[1] = channel
202	*/
203	static void
204	m_list(struct Client client_p, struct Client source_p,
205	int parc, char *parv[])
206	{
207	static time_t last_used = 0;
208
209	if (((last_used + ConfigFileEntry.pace_wait) > CurrentTime))
210	{
211	sendto_one(source_p, form_str(RPL_LOAD2HI), me.name, parv[0]);
212	return;
213	}
214
215	last_used = CurrentTime;
216
217	do_list(source_p, parc, parv);
218	}
219
220	/*
221	** mo_list
222	** parv[0] = sender prefix
223	** parv[1] = channel
224	*/
225	static void
226	mo_list(struct Client client_p, struct Client source_p,
227	int parc, char *parv[])
228	{
229	do_list(source_p, parc, parv);
230	}