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/*
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
*
* Copyright (c) 1997-2018 ircd-hybrid 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
/*! \file m_squit.c
* \brief Includes required functions for processing the SQUIT command.
* \version $Id: m_squit.c 8280 2018-02-20 19:30:33Z michael $
*/
#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "hash.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "conf.h"
#include "log.h"
#include "server.h"
#include "send.h"
#include "parse.h"
#include "modules.h"
/*! \brief SQUIT command handler
*
* \param source_p Pointer to allocated Client struct from which the message
* originally comes from. This can be a local or remote client.
* \param parc Integer holding the number of supplied arguments.
* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
* pointers.
* \note Valid arguments for this command are:
* - parv[0] = command
* - parv[1] = server name
* - parv[2] = comment
*/
static int
mo_squit(struct Client *source_p, int parc, char *parv[])
{
char comment[REASONLEN + 1] = "";
struct Client *target_p = NULL;
dlink_node *node = NULL;
const char *server = parv[1];
if (parc < 2 || EmptyString(parv[1]))
{
sendto_one_numeric(source_p, &me, ERR_NEEDMOREPARAMS, "SQUIT");
return 0;
}
/* The following allows wild cards in SQUIT. */
DLINK_FOREACH(node, global_server_list.head)
{
struct Client *p = node->data;
if (IsServer(p) || IsMe(p))
{
if (!match(server, p->name))
{
target_p = p;
break;
}
}
}
if (!target_p || IsMe(target_p))
{
sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, server);
return 0;
}
if (!MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_SQUIT_REMOTE))
{
sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "squit:remote");
return 0;
}
if (MyConnect(target_p) && !HasOFlag(source_p, OPER_FLAG_SQUIT))
{
sendto_one_numeric(source_p, &me, ERR_NOPRIVS, "squit");
return 0;
}
if (!EmptyString(parv[2]))
strlcpy(comment, parv[2], sizeof(comment));
else
strlcpy(comment, CONF_NOREASON, sizeof(comment));
if (MyConnect(target_p))
{
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_NOTICE,
"Received SQUIT %s from %s (%s)",
target_p->name, get_oper_name(source_p), comment);
ilog(LOG_TYPE_IRCD, "SQUIT %s from %s (%s)",
target_p->name, get_oper_name(source_p), comment);
/* To them, we are exiting */
sendto_one(target_p, ":%s SQUIT %s :%s", source_p->id, me.id, comment);
/* Send to everything but target */
sendto_server(target_p, 0, 0, ":%s SQUIT %s :%s",
source_p->id, target_p->id, comment);
}
else
/* Send to everything */
sendto_server(NULL, 0, 0, ":%s SQUIT %s :%s",
source_p->id, target_p->id, comment);
AddFlag(target_p, FLAGS_SQUIT);
exit_client(target_p, comment);
return 0;
}
/*! \brief SQUIT command handler
*
* \param source_p Pointer to allocated Client struct from which the message
* originally comes from. This can be a local or remote client.
* \param parc Integer holding the number of supplied arguments.
* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
* pointers.
* \note Valid arguments for this command are:
* - parv[0] = command
* - parv[1] = server name
* - parv[2] = comment
*/
static int
ms_squit(struct Client *source_p, int parc, char *parv[])
{
struct Client *target_p = NULL;
const char *comment = NULL;
dlink_node *node = NULL;
if (parc < 2 || EmptyString(parv[1]))
return 0;
if ((target_p = hash_find_server(parv[1])) == NULL)
return 0;
if (!IsServer(target_p) && !IsMe(target_p))
return 0;
if (IsMe(target_p))
target_p = source_p->from;
comment = (parc > 2 && parv[parc - 1]) ? parv[parc - 1] : source_p->name;
if (MyConnect(target_p))
{
sendto_realops_flags(UMODE_SERVNOTICE, L_ALL, SEND_GLOBAL, "from %s: Remote SQUIT %s from %s (%s)",
me.name, target_p->name, get_oper_name(source_p), comment);
sendto_server(source_p, 0, 0, ":%s GLOBOPS :Remote SQUIT %s from %s (%s)",
me.id, target_p->name, get_oper_name(source_p), comment);
ilog(LOG_TYPE_IRCD, "Remote SQUIT %s from %s (%s)",
target_p->name, get_oper_name(source_p), comment);
/* To them, we are exiting */
sendto_one(target_p, ":%s SQUIT %s :%s", source_p->id, me.id, comment);
/* Send to everything but target and source */
DLINK_FOREACH(node, local_server_list.head)
{
struct Client *client_p = node->data;
if (client_p == target_p || client_p == source_p->from)
continue;
sendto_one(client_p, ":%s SQUIT %s :%s",
source_p->id, target_p->id, comment);
}
}
else
/* Send to everything but source */
sendto_server(source_p, 0, 0, ":%s SQUIT %s :%s",
source_p->id, target_p->id, comment);
AddFlag(target_p, FLAGS_SQUIT);
exit_client(target_p, comment);
return 0;
}
static struct Message squit_msgtab =
{
.cmd = "SQUIT",
.args_max = MAXPARA,
.handlers[UNREGISTERED_HANDLER] = m_unregistered,
.handlers[CLIENT_HANDLER] = m_not_oper,
.handlers[SERVER_HANDLER] = ms_squit,
.handlers[ENCAP_HANDLER] = m_ignore,
.handlers[OPER_HANDLER] = mo_squit
};
static void
module_init(void)
{
mod_add_cmd(&squit_msgtab);
}
static void
module_exit(void)
{
mod_del_cmd(&squit_msgtab);
}
struct module module_entry =
{
.version = "$Revision: 8280 $",
.modinit = module_init,
.modexit = module_exit,
.flags = MODULE_FLAG_CORE
};
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