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construct/modules/m_pong.cc
2016-08-28 01:48:25 -07:00

116 lines
3.7 KiB
C++

/*
* ircd-ratbox: A slightly useful ircd.
* m_pong.c: The reply to a ping message.
*
* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
* Copyright (C) 1996-2002 Hybrid Development Team
* Copyright (C) 2002-2005 ircd-ratbox 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
*/
using namespace ircd;
static const char pong_desc[] = "Provides the PONG command to respond to a PING message";
static void mr_pong(struct MsgBuf *, client::client &, client::client &, int, const char **);
static void ms_pong(struct MsgBuf *, client::client &, client::client &, int, const char **);
struct Message pong_msgtab = {
"PONG", 0, 0, 0, 0,
{{mr_pong, 0}, mg_ignore, mg_ignore, {ms_pong, 2}, mg_ignore, mg_ignore}
};
mapi_clist_av1 pong_clist[] = { &pong_msgtab, NULL };
DECLARE_MODULE_AV2(pong, NULL, NULL, pong_clist, NULL, NULL, NULL, NULL, pong_desc);
static void
ms_pong(struct MsgBuf *msgbuf_p, client::client &client, client::client &source, int parc, const char *parv[])
{
client::client *target_p;
const char *destination;
destination = parv[2];
source.flags &= ~client::flags::PINGSENT;
/* Now attempt to route the PONG, comstud pointed out routable PING
* is used for SPING. routable PING should also probably be left in
* -Dianora
* That being the case, we will route, but only for registered clients (a
* case can be made to allow them only from servers). -Shadowfax
*/
if(!EmptyString(destination) && !match(destination, me.name) &&
irccmp(destination, me.id))
{
if((target_p = find_client(destination)))
sendto_one(target_p, ":%s PONG %s %s",
get_id(&source, target_p), parv[1],
get_id(target_p, target_p));
else
{
if(!rfc1459::is_digit(*destination))
sendto_one_numeric(&source, ERR_NOSUCHSERVER,
form_str(ERR_NOSUCHSERVER), destination);
return;
}
}
/* destination is us, emulate EOB */
if(is_server(source) && !has_sent_eob(source))
{
if(my_connect(source))
sendto_realops_snomask(sno::GENERAL, L_ALL,
"End of burst (emulated) from %s (%d seconds)",
source.name,
(signed int) (rb_current_time() - source.localClient->firsttime));
set_eob(source);
eob_count++;
call_hook(h_server_eob, &source);
}
}
static void
mr_pong(struct MsgBuf *msgbuf_p, client::client &client, client::client &source, int parc, const char *parv[])
{
if(parc == 2 && !EmptyString(parv[1]))
{
if(ConfigFileEntry.ping_cookie && source.flags & client::flags::SENTUSER && source.name[0])
{
uint32_t incoming_ping = strtoul(parv[1], NULL, 16);
if(incoming_ping)
{
if(source.localClient->random_ping == incoming_ping)
{
source.flags |= client::flags::PING_COOKIE;
register_local_user(&client, &source);
}
else
{
sendto_one(&source, form_str(ERR_WRONGPONG),
me.name, source.name,
source.localClient->random_ping);
return;
}
}
}
}
else
sendto_one(&source, form_str(ERR_NOORIGIN), me.name, source.name);
source.flags &= ~client::flags::PINGSENT;
}