148 lines
4.1 KiB
C
148 lines
4.1 KiB
C
/*
|
|
* ircd-ratbox: A slightly useful ircd.
|
|
* m_error.c: Handles error messages from the other end.
|
|
*
|
|
* 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
|
|
*/
|
|
|
|
#include "stdinc.h"
|
|
#include "client.h"
|
|
#include "ircd.h"
|
|
#include "numeric.h"
|
|
#include "send.h"
|
|
#include "msg.h"
|
|
#include "modules.h"
|
|
#include "logger.h"
|
|
#include "s_conf.h"
|
|
|
|
static const char error_desc[] =
|
|
"Provides the ERROR command for clients and servers";
|
|
|
|
static void m_error(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
|
|
static void ms_error(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
|
|
|
|
struct Message error_msgtab = {
|
|
"ERROR", 0, 0, 0, 0,
|
|
{{m_error, 0}, mg_ignore, mg_ignore, {ms_error, 0}, mg_ignore, mg_ignore}
|
|
};
|
|
|
|
mapi_clist_av1 error_clist[] = {
|
|
&error_msgtab, NULL
|
|
};
|
|
|
|
DECLARE_MODULE_AV2(error, NULL, NULL, error_clist, NULL, NULL, NULL, NULL, error_desc);
|
|
|
|
/* Determine whether an ERROR message is safe to show (no IP address in it) */
|
|
static bool
|
|
is_safe_error(const char *message)
|
|
{
|
|
char prefix2[100];
|
|
const char *p;
|
|
|
|
if (!strncmp(message, "Closing Link: 127.0.0.1 (", 25))
|
|
return true;
|
|
snprintf(prefix2, sizeof prefix2,
|
|
"Closing Link: 127.0.0.1 %s (", me.name);
|
|
if (!strncmp(message, prefix2, strlen(prefix2)))
|
|
return true;
|
|
if (!strncmp(message, "Restart by ", 11))
|
|
return true;
|
|
if (!strncmp(message, "Terminated by ", 14))
|
|
return true;
|
|
|
|
if (!rb_strncasecmp(message, "Closing Link", 12))
|
|
return false;
|
|
if (strchr(message, '['))
|
|
return false;
|
|
p = strchr(message, '.');
|
|
if (p != NULL && p[1] != '\0')
|
|
return false;
|
|
if (strchr(message, ':'))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Note: At least at protocol level ERROR has only one parameter,
|
|
* although this is called internally from other functions
|
|
* --msa
|
|
*
|
|
* parv[*] = parameters
|
|
*/
|
|
static void
|
|
m_error(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
|
|
{
|
|
const char *para;
|
|
int hideit = ConfigFileEntry.hide_error_messages;
|
|
|
|
para = (parc > 1 && *parv[1] != '\0') ? parv[1] : "<>";
|
|
|
|
if (IsAnyServer(client_p))
|
|
{
|
|
ilog(L_SERVER, "Received ERROR message from %s: %s",
|
|
log_client_name(source_p, SHOW_IP), para);
|
|
}
|
|
|
|
if(is_safe_error(para))
|
|
hideit = 0;
|
|
if(IsAnyServer(client_p))
|
|
{
|
|
if (hideit < 2)
|
|
sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : L_NETWIDE,
|
|
"ERROR :from %s -- %s",
|
|
client_p->name, para);
|
|
if (hideit > 0)
|
|
sendto_realops_snomask(SNO_GENERAL, hideit == 1 ? L_OPER | L_NETWIDE : L_NETWIDE,
|
|
"ERROR :from %s -- <hidden>",
|
|
client_p->name);
|
|
}
|
|
|
|
exit_client(client_p, source_p, source_p, "ERROR");
|
|
}
|
|
|
|
static void
|
|
ms_error(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
|
|
{
|
|
const char *para;
|
|
int hideit = ConfigFileEntry.hide_error_messages;
|
|
|
|
para = (parc > 1 && *parv[1] != '\0') ? parv[1] : "<>";
|
|
|
|
ilog(L_SERVER, "Received ERROR message from %s: %s",
|
|
log_client_name(source_p, SHOW_IP), para);
|
|
|
|
if(is_safe_error(para))
|
|
hideit = 0;
|
|
if(hideit == 2)
|
|
return;
|
|
|
|
if(client_p == source_p)
|
|
{
|
|
sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : L_NETWIDE, "ERROR :from %s -- %s",
|
|
client_p->name, para);
|
|
}
|
|
else
|
|
{
|
|
sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : L_NETWIDE, "ERROR :from %s via %s -- %s",
|
|
source_p->name, client_p->name, para);
|
|
}
|
|
}
|