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/*
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
*
* Copyright (c) 2012-2018 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_webirc.c
* \brief Includes required functions for processing the WEBIRC command.
* \version $Id: m_webirc.c 8280 2018-02-20 19:30:33Z michael $
*/
#include "stdinc.h"
#include "list.h"
#include "client.h"
#include "ircd.h"
#include "send.h"
#include "irc_string.h"
#include "parse.h"
#include "modules.h"
#include "conf.h"
#include "hostmask.h"
#include "user.h"
/*! \brief WEBIRC 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] = password
* - parv[2] = fake username (we ignore this)
* - parv[3] = fake hostname
* - parv[4] = fake ip
*/
static int
mr_webirc(struct Client *source_p, int parc, char *parv[])
{
const struct MaskItem *conf = NULL;
const char *const pass = parv[1];
const char *const host = parv[3];
const char *const addr = parv[4];
struct addrinfo hints, *res;
assert(MyConnect(source_p));
if (!valid_hostname(host))
{
sendto_one_notice(source_p, &me, ":WEBIRC: Invalid hostname %s", host);
return 0;
}
conf = find_address_conf(source_p->host,
HasFlag(source_p, FLAGS_GOTID) ? source_p->username : "webirc",
&source_p->connection->ip,
source_p->connection->aftype, pass);
if (!conf || !IsConfClient(conf))
return 0;
if (!IsConfWebIRC(conf))
{
sendto_one_notice(source_p, &me, ":Not a WEBIRC auth {} block");
return 0;
}
if (EmptyString(conf->passwd))
{
sendto_one_notice(source_p, &me, ":WEBIRC auth {} blocks must have a password");
return 0;
}
if (!match_conf_password(pass, conf))
{
sendto_one_notice(source_p, &me, ":WEBIRC password incorrect");
return 0;
}
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
if (getaddrinfo(addr, NULL, &hints, &res))
{
sendto_one_notice(source_p, &me, ":Invalid WEBIRC IP address %s", addr);
return 0;
}
assert(res);
memcpy(&source_p->connection->ip, res->ai_addr, res->ai_addrlen);
source_p->connection->ip.ss_len = res->ai_addrlen;
source_p->connection->ip.ss.ss_family = res->ai_family;
source_p->connection->aftype = res->ai_family;
freeaddrinfo(res);
strlcpy(source_p->sockhost, addr, sizeof(source_p->sockhost));
if (source_p->sockhost[0] == ':')
{
memmove(source_p->sockhost + 1, source_p->sockhost, sizeof(source_p->sockhost) - 1);
source_p->sockhost[0] = '0';
}
strlcpy(source_p->host, host, sizeof(source_p->host));
strlcpy(source_p->realhost, host, sizeof(source_p->realhost));
/* Check dlines now, k-lines will be checked on registration */
if ((conf = find_dline_conf(&source_p->connection->ip,
source_p->connection->aftype)))
{
if (conf->type == CONF_DLINE)
{
exit_client(source_p, "D-lined");
return 0;
}
}
AddUMode(source_p, UMODE_WEBIRC);
sendto_one_notice(source_p, &me, ":WEBIRC host/IP set to %s %s", host, addr);
return 0;
}
static struct Message webirc_msgtab =
{
.cmd = "WEBIRC",
.args_min = 5,
.args_max = MAXPARA,
.handlers[UNREGISTERED_HANDLER] = mr_webirc,
.handlers[CLIENT_HANDLER] = m_registered,
.handlers[SERVER_HANDLER] = m_ignore,
.handlers[ENCAP_HANDLER] = m_ignore,
.handlers[OPER_HANDLER] = m_registered
};
static void
module_init(void)
{
mod_add_cmd(&webirc_msgtab);
}
static void
module_exit(void)
{
mod_del_cmd(&webirc_msgtab);
}
struct module module_entry =
{
.version = "$Revision: 8280 $",
.modinit = module_init,
.modexit = module_exit,
};
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