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 "handlers.h"
#include "client.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "s_serv.h"
#include "send.h"
#include "s_conf.h"
#include "msg.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;

      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:	1230
Committed:	Thu Sep 22 19:41:19 2011 UTC (14 years, 10 months ago) by michael
Content type:	text/x-csrc
File size:	5300 byte(s)
Log Message:	- cleanup module loader. Make module api more flexible
#	User	Rev	Content
1	adx	30	/*
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	knight	31	* $Id$
23	adx	30	*/
24
25			#include "stdinc.h"
26			#include "handlers.h"
27			#include "client.h"
28			#include "irc_string.h"
29			#include "ircd.h"
30			#include "numeric.h"
31			#include "s_serv.h"
32			#include "send.h"
33			#include "s_conf.h"
34			#include "msg.h"
35			#include "motd.h"
36			#include "parse.h"
37			#include "modules.h"
38
39
40	michael	1144	static void
41			do_links(struct Client source_p, int parc, char parv[])
42	adx	30	{
43	michael	1144	sendto_realops_flags(UMODE_SPY, L_ALL,
44			"LINKS requested by %s (%s@%s) [%s]",
45			source_p->name,
46			source_p->username, source_p->host,
47			source_p->servptr->name);
48	adx	30
49	michael	1219	if (HasUMode(source_p, UMODE_OPER) \|\| !ConfigServerHide.flatten_links)
50	adx	30	{
51	michael	1045	const char *mask = (parc > 2 ? parv[2] : parv[1]);
52	adx	30	const char me_name, nick, *p;
53			struct Client *target_p;
54			dlink_node *ptr;
55
56			me_name = ID_or_name(&me, source_p->from);
57			nick = ID_or_name(source_p, source_p->from);
58
59			DLINK_FOREACH(ptr, global_serv_list.head)
60			{
61			target_p = ptr->data;
62
63	michael	575	if (!EmptyString(mask) && !match(mask, target_p->name))
64	adx	30	continue;
65	michael	575
66	adx	30	if (target_p->info[0])
67			{
68			if ((p = strchr(target_p->info, ']')))
69			p += 2; /* skip the nasty [IP] part */
70			else
71			p = target_p->info;
72			}
73			else
74			p = "(Unknown Location)";
75
76			/* We just send the reply, as if they are here there's either no SHIDE,
77			* or they're an oper..
78			*/
79			sendto_one(source_p, form_str(RPL_LINKS),
80			me_name, nick,
81			target_p->name, target_p->servptr->name,
82			target_p->hopcount, p);
83			}
84
85			sendto_one(source_p, form_str(RPL_ENDOFLINKS),
86			me_name, nick,
87			EmptyString(mask) ? "*" : mask);
88			}
89	michael	1148	else
90			{
91	adx	30	/*
92			* Print our own info so at least it looks like a normal links
93			* then print out the file (which may or may not be empty)
94			*/
95			sendto_one(source_p, form_str(RPL_LINKS),
96			ID_or_name(&me, source_p->from),
97			ID_or_name(source_p, source_p->from),
98			me.name, me.name, 0, me.info);
99			send_message_file(source_p, &ConfigFileEntry.linksfile);
100			sendto_one(source_p, form_str(RPL_ENDOFLINKS),
101	adx	103	ID_or_name(&me, source_p->from),
102			ID_or_name(source_p, source_p->from), "*");
103	adx	30	}
104			}
105
106	michael	1230	static void
107			mo_links(struct Client client_p, struct Client source_p,
108			int parc, char *parv[])
109			{
110			if (parc > 2)
111			if (!ConfigFileEntry.disable_remote \|\| HasUMode(source_p, UMODE_OPER))
112			if (hunt_server(client_p, source_p, ":%s LINKS %s :%s", 1,
113			parc, parv) != HUNTED_ISME)
114			return;
115
116			do_links(source_p, parc, parv);
117			}
118
119	adx	30	/*
120			* m_links - LINKS message handler
121			* parv[0] = sender prefix
122			* parv[1] = servername mask
123			* or
124			* parv[0] = sender prefix
125			* parv[1] = server to query
126			* parv[2] = servername mask
127			*/
128			static void
129			m_links(struct Client client_p, struct Client source_p,
130			int parc, char *parv[])
131			{
132	adx	269	static time_t last_used = 0;
133
134			if ((last_used + ConfigFileEntry.pace_wait) > CurrentTime)
135			{
136			sendto_one(source_p, form_str(RPL_LOAD2HI),
137			me.name, source_p->name);
138			return;
139			}
140
141	michael	1121	last_used = CurrentTime;
142
143	adx	30	if (!ConfigServerHide.flatten_links)
144			{
145			mo_links(client_p, source_p, parc, parv);
146			return;
147			}
148
149	michael	1144	do_links(source_p, parc, parv);
150	adx	30	}
151
152			/*
153			* ms_links - LINKS message handler
154			* parv[0] = sender prefix
155			* parv[1] = servername mask
156			* or
157			* parv[0] = sender prefix
158			* parv[1] = server to query
159			* parv[2] = servername mask
160			*/
161			static void
162			ms_links(struct Client client_p, struct Client source_p,
163			int parc, char *parv[])
164			{
165	michael	1144	if (hunt_server(client_p, source_p, ":%s LINKS %s :%s", 1,
166			parc, parv) != HUNTED_ISME)
167	adx	30	return;
168
169			if (IsClient(source_p))
170			m_links(client_p, source_p, parc, parv);
171			}
172	michael	1230
173			static struct Message links_msgtab = {
174			"LINKS", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
175			{m_unregistered, m_links, ms_links, m_ignore, mo_links, m_ignore}
176			};
177
178			static void
179			module_init(void)
180			{
181			mod_add_cmd(&links_msgtab);
182			}
183
184			static void
185			module_exit(void)
186			{
187			mod_del_cmd(&links_msgtab);
188			}
189
190			struct module module_entry = {
191			.node = { NULL, NULL, NULL },
192			.name = NULL,
193			.version = "$Revision$",
194			.handle = NULL,
195			.modinit = module_init,
196			.modexit = module_exit,
197			.flags = 0
198			};