mirror of
https://github.com/matrix-construct/construct
synced 2024-11-09 03:21:15 +01:00
147 lines
4.2 KiB
C
147 lines
4.2 KiB
C
/*
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* ircd-ratbox: A slightly useful ircd.
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* m_error.c: Handles error messages from the other end.
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#include "stdinc.h"
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#include "client.h"
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#include "ircd.h"
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#include "numeric.h"
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#include "send.h"
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#include "msg.h"
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#include "modules.h"
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#include "logger.h"
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#include "s_conf.h"
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static const char error_desc[] =
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"Provides the ERROR command for clients and servers";
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static void m_error(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
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static void ms_error(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
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struct Message error_msgtab = {
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"ERROR", 0, 0, 0, 0,
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{{m_error, 0}, mg_ignore, mg_ignore, {ms_error, 0}, mg_ignore, mg_ignore}
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};
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mapi_clist_av1 error_clist[] = {
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&error_msgtab, NULL
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};
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DECLARE_MODULE_AV2(error, NULL, NULL, error_clist, NULL, NULL, NULL, NULL, error_desc);
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/* Determine whether an ERROR message is safe to show (no IP address in it) */
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static bool
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is_safe_error(const char *message)
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{
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char prefix2[100];
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const char *p;
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if (!strncmp(message, "Closing Link: 127.0.0.1 (", 25))
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return true;
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snprintf(prefix2, sizeof prefix2,
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"Closing Link: 127.0.0.1 %s (", me.name);
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if (!strncmp(message, prefix2, strlen(prefix2)))
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return true;
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if (!strncmp(message, "Restart by ", 11))
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return true;
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if (!strncmp(message, "Terminated by ", 14))
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return true;
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if (!strncasecmp(message, "Closing Link", 12))
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return false;
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if (strchr(message, '['))
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return false;
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p = strchr(message, '.');
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if (p != NULL && p[1] != '\0')
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return false;
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if (strchr(message, ':'))
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return false;
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return true;
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}
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/*
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* Note: At least at protocol level ERROR has only one parameter,
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* although this is called internally from other functions
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* --msa
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*
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* parv[*] = parameters
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*/
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static void
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m_error(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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const char *para;
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int hideit = ConfigFileEntry.hide_error_messages;
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para = (parc > 1 && *parv[1] != '\0') ? parv[1] : "<>";
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if (IsAnyServer(client_p))
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{
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ilog(L_SERVER, "Received ERROR message from %s: %s",
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log_client_name(source_p, SHOW_IP), para);
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}
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if(is_safe_error(para))
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hideit = 0;
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if(IsAnyServer(client_p))
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{
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if (hideit < 2)
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sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : (is_remote_connect(client_p) ? L_NETWIDE : L_ALL),
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"ERROR :from %s -- %s",
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client_p->name, para);
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if (hideit > 0)
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sendto_realops_snomask(SNO_GENERAL, (hideit == 1 ? L_OPER : L_ALL) | (is_remote_connect(client_p) ? L_NETWIDE : L_ALL),
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"ERROR :from %s -- <hidden>",
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client_p->name);
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}
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exit_client(client_p, source_p, source_p, "ERROR");
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}
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static void
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ms_error(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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const char *para;
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int hideit = ConfigFileEntry.hide_error_messages;
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para = (parc > 1 && *parv[1] != '\0') ? parv[1] : "<>";
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ilog(L_SERVER, "Received ERROR message from %s: %s",
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log_client_name(source_p, SHOW_IP), para);
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if(is_safe_error(para))
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hideit = 0;
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if(hideit == 2)
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return;
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if(client_p == source_p)
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{
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sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : L_ALL, "ERROR :from %s -- %s",
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client_p->name, para);
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}
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else
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{
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sendto_realops_snomask(SNO_GENERAL, hideit ? L_ADMIN : L_ALL, "ERROR :from %s via %s -- %s",
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source_p->name, client_p->name, para);
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}
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}
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