ircd-hybrid-8/modules/m_links.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_links.c: Shows what servers are currently connected.
 *
 *  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 "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "s_serv.h"
#include "send.h"
#include "conf.h"
#include "motd.h"
#include "parse.h"
#include "modules.h"


static void
do_links(struct Client *source_p, int parc, char *parv[])
{
  sendto_realops_flags(UMODE_SPY, L_ALL,
                       "LINKS requested by %s (%s@%s) [%s]",
                       source_p->name,
                       source_p->username, source_p->host,
                       source_p->servptr->name);

  if (HasUMode(source_p, UMODE_OPER) || !ConfigServerHide.flatten_links)
  {
    const char *mask = (parc > 2 ? parv[2] : parv[1]);
    const char *me_name, *nick, *p;
    struct Client *target_p;
    dlink_node *ptr;

    me_name = ID_or_name(&me, source_p->from);
    nick = ID_or_name(source_p, source_p->from);

    DLINK_FOREACH(ptr, global_serv_list.head)
    {
      target_p = ptr->data;

      /* skip hidden servers */
      if (IsHidden(target_p))
        if (!HasUMode(source_p, UMODE_OPER))
          continue;

      if (!EmptyString(mask) && !match(mask, target_p->name))
        continue;

      if (target_p->info[0])
      {
        if ((p = strchr(target_p->info, ']')))
          p += 2; /* skip the nasty [IP] part */
        else
          p = target_p->info;
      } 
      else
        p = "(Unknown Location)";

      /* We just send the reply, as if they are here there's either no SHIDE,
       * or they're an oper..  
       */
      sendto_one(source_p, form_str(RPL_LINKS),
                 me_name, nick,
                 target_p->name, target_p->servptr->name,
                 target_p->hopcount, p);
    }
  
    sendto_one(source_p, form_str(RPL_ENDOFLINKS),
               me_name, nick,
               EmptyString(mask) ? "*" : mask);
  }
  else
  {
    /*
     * Print our own info so at least it looks like a normal links
     * then print out the file (which may or may not be empty)
     */
    sendto_one(source_p, form_str(RPL_LINKS),
               ID_or_name(&me, source_p->from),
               ID_or_name(source_p, source_p->from),
               me.name, me.name, 0, me.info);
    send_message_file(source_p, &ConfigFileEntry.linksfile);
    sendto_one(source_p, form_str(RPL_ENDOFLINKS),
               ID_or_name(&me, source_p->from),
               ID_or_name(source_p, source_p->from), "*");
  }
}

static void
mo_links(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  if (parc > 2)
    if (!ConfigFileEntry.disable_remote || HasUMode(source_p, UMODE_OPER))
      if (hunt_server(client_p, source_p, ":%s LINKS %s :%s", 1,
                      parc, parv) != HUNTED_ISME)
        return;

  do_links(source_p, parc, parv);
}

/*
 * m_links - LINKS message handler
 *      parv[0] = sender prefix
 *      parv[1] = servername mask
 * or
 *      parv[0] = sender prefix
 *      parv[1] = server to query 
 *      parv[2] = servername mask
 */
static void
m_links(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, source_p->name);
    return;
  }

  last_used = CurrentTime;

  if (!ConfigServerHide.flatten_links)
  {
    mo_links(client_p, source_p, parc, parv);
    return;
  }

  do_links(source_p, parc, parv);
}

/*
 * ms_links - LINKS message handler
 *      parv[0] = sender prefix
 *      parv[1] = servername mask
 * or
 *      parv[0] = sender prefix
 *      parv[1] = server to query 
 *      parv[2] = servername mask
 */
static void
ms_links(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  if (hunt_server(client_p, source_p, ":%s LINKS %s :%s", 1,
                  parc, parv) != HUNTED_ISME)
    return;

  if (IsClient(source_p))
    m_links(client_p, source_p, parc, parv);
}

static struct Message links_msgtab = {
  "LINKS", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
  {m_unregistered, m_links, ms_links, m_ignore, mo_links, m_ignore}
};

static void
module_init(void)
{
  mod_add_cmd(&links_msgtab);
}

static void
module_exit(void)
{
  mod_del_cmd(&links_msgtab);
}

struct module module_entry = {
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	1490
Committed:	Sat Jul 28 19:33:23 2012 UTC (13 years ago) by michael
Content type:	text/x-csrc
File size:	5387 byte(s)
Log Message:	- removed serverhide::disable_hidden configuration option - update NEWS
#	Content
1	/*
2	* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3	* m_links.c: Shows what servers are currently connected.
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 "client.h"
27	#include "irc_string.h"
28	#include "ircd.h"
29	#include "numeric.h"
30	#include "s_serv.h"
31	#include "send.h"
32	#include "conf.h"
33	#include "motd.h"
34	#include "parse.h"
35	#include "modules.h"
36
37
38	static void
39	do_links(struct Client source_p, int parc, char parv[])
40	{
41	sendto_realops_flags(UMODE_SPY, L_ALL,
42	"LINKS requested by %s (%s@%s) [%s]",
43	source_p->name,
44	source_p->username, source_p->host,
45	source_p->servptr->name);
46
47	if (HasUMode(source_p, UMODE_OPER) \|\| !ConfigServerHide.flatten_links)
48	{
49	const char *mask = (parc > 2 ? parv[2] : parv[1]);
50	const char me_name, nick, *p;
51	struct Client *target_p;
52	dlink_node *ptr;
53
54	me_name = ID_or_name(&me, source_p->from);
55	nick = ID_or_name(source_p, source_p->from);
56
57	DLINK_FOREACH(ptr, global_serv_list.head)
58	{
59	target_p = ptr->data;
60
61	/* skip hidden servers */
62	if (IsHidden(target_p))
63	if (!HasUMode(source_p, UMODE_OPER))
64	continue;
65
66	if (!EmptyString(mask) && !match(mask, target_p->name))
67	continue;
68
69	if (target_p->info[0])
70	{
71	if ((p = strchr(target_p->info, ']')))
72	p += 2; /* skip the nasty [IP] part */
73	else
74	p = target_p->info;
75	}
76	else
77	p = "(Unknown Location)";
78
79	/* We just send the reply, as if they are here there's either no SHIDE,
80	* or they're an oper..
81	*/
82	sendto_one(source_p, form_str(RPL_LINKS),
83	me_name, nick,
84	target_p->name, target_p->servptr->name,
85	target_p->hopcount, p);
86	}
87
88	sendto_one(source_p, form_str(RPL_ENDOFLINKS),
89	me_name, nick,
90	EmptyString(mask) ? "*" : mask);
91	}
92	else
93	{
94	/*
95	* Print our own info so at least it looks like a normal links
96	* then print out the file (which may or may not be empty)
97	*/
98	sendto_one(source_p, form_str(RPL_LINKS),
99	ID_or_name(&me, source_p->from),
100	ID_or_name(source_p, source_p->from),
101	me.name, me.name, 0, me.info);
102	send_message_file(source_p, &ConfigFileEntry.linksfile);
103	sendto_one(source_p, form_str(RPL_ENDOFLINKS),
104	ID_or_name(&me, source_p->from),
105	ID_or_name(source_p, source_p->from), "*");
106	}
107	}
108
109	static void
110	mo_links(struct Client client_p, struct Client source_p,
111	int parc, char *parv[])
112	{
113	if (parc > 2)
114	if (!ConfigFileEntry.disable_remote \|\| HasUMode(source_p, UMODE_OPER))
115	if (hunt_server(client_p, source_p, ":%s LINKS %s :%s", 1,
116	parc, parv) != HUNTED_ISME)
117	return;
118
119	do_links(source_p, parc, parv);
120	}
121
122	/*
123	* m_links - LINKS message handler
124	* parv[0] = sender prefix
125	* parv[1] = servername mask
126	* or
127	* parv[0] = sender prefix
128	* parv[1] = server to query
129	* parv[2] = servername mask
130	*/
131	static void
132	m_links(struct Client client_p, struct Client source_p,
133	int parc, char *parv[])
134	{
135	static time_t last_used = 0;
136
137	if ((last_used + ConfigFileEntry.pace_wait) > CurrentTime)
138	{
139	sendto_one(source_p, form_str(RPL_LOAD2HI),
140	me.name, source_p->name);
141	return;
142	}
143
144	last_used = CurrentTime;
145
146	if (!ConfigServerHide.flatten_links)
147	{
148	mo_links(client_p, source_p, parc, parv);
149	return;
150	}
151
152	do_links(source_p, parc, parv);
153	}
154
155	/*
156	* ms_links - LINKS message handler
157	* parv[0] = sender prefix
158	* parv[1] = servername mask
159	* or
160	* parv[0] = sender prefix
161	* parv[1] = server to query
162	* parv[2] = servername mask
163	*/
164	static void
165	ms_links(struct Client client_p, struct Client source_p,
166	int parc, char *parv[])
167	{
168	if (hunt_server(client_p, source_p, ":%s LINKS %s :%s", 1,
169	parc, parv) != HUNTED_ISME)
170	return;
171
172	if (IsClient(source_p))
173	m_links(client_p, source_p, parc, parv);
174	}
175
176	static struct Message links_msgtab = {
177	"LINKS", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
178	{m_unregistered, m_links, ms_links, m_ignore, mo_links, m_ignore}
179	};
180
181	static void
182	module_init(void)
183	{
184	mod_add_cmd(&links_msgtab);
185	}
186
187	static void
188	module_exit(void)
189	{
190	mod_del_cmd(&links_msgtab);
191	}
192
193	struct module module_entry = {
194	.node = { NULL, NULL, NULL },
195	.name = NULL,
196	.version = "$Revision$",
197	.handle = NULL,
198	.modinit = module_init,
199	.modexit = module_exit,
200	.flags = 0
201	};