/************************************************************************
 *   IRC - Internet Relay Chat, modules/m_user.c
 *
 *   Copyright (C) 2000-2003 TR-IRCD Development
 *
 *   Copyright (C) 1990 Jarkko Oikarinen and
 *                      University of Oulu, Co Center
 *
 *   See file AUTHORS in IRC package for additional names of
 *   the programmers.
 *
 *   This program is free softwmare; 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "struct.h"
#include "common.h"
#include "sys.h"
#include "h.h"
#include "msg.h"
#include "numeric.h"
#include "s_conf.h"

static struct Message _msgtab[] = {
    {MSG_USER, 0, MAXPARA, M_SLOW, 0L,
     m_user, m_registered, m_registered, m_registered, m_ignore}
};

#ifndef STATIC_MODULES

char *_version = "$Revision: 1.4 $";

void _modinit(void)
{
    mod_add_cmd(_msgtab);
}

void _moddeinit(void)
{
    mod_del_cmd(_msgtab);
}
#else
void m_user_init(void)
{
    mod_add_cmd(_msgtab);
}
#endif

/*
 * * m_user * parv[0] = sender prefix *       parv[1] = username
 * (login name, account) *      parv[2] = client host name (used only
 * from other servers) *        parv[3] = server host name (used only
 * from other servers) *        parv[4] = users real name info
 */
int m_user(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
    char *username, *host, *server, *realname;
    aMaskItem *ami;

    if (parc > 2 && (username = (char *) strchr(parv[1], '@')))
	*username = '\0';
    if (parc < 5 || *parv[1] == '\0' || *parv[2] == '\0' || *parv[3] == '\0' || *parv[4] == '\0') {
	send_me_numeric(sptr, ERR_NEEDMOREPARAMS, MSG_USER);
	return 0;
    }
    /*
     * Copy parameters into better documenting variables
     */
    username = (parc < 2 || BadPtr(parv[1])) ? "<bad-boy>" : parv[1];
    host = (parc < 3 || BadPtr(parv[2])) ? "<nohost>" : parv[2];
    server = (parc < 4 || BadPtr(parv[3])) ? "<noserver>" : parv[3];
    realname = (parc < 5 || BadPtr(parv[4])) ? "<bad-realname>" : parv[4];
    if ((ami = find_maskitem(realname, NULL, MASKITEM_GECOS, 1))) {
	/* Realname replacement */
	if (ServerOpts.hide_gcos_with_sgline) {
	    realname = ServerOpts.realname_replacement;
	} else {
	    return exit_client(sptr, sptr, ami->reason);
	}
    } else if ((ami = find_maskitem(realname, NULL, MASKITEM_GECOS_CONFIG, 1))) {
        /* Realname replacement */
        if (ServerOpts.hide_gcos_with_sgline) {
            realname = ServerOpts.realname_replacement;
        } else {
            return exit_client(sptr, sptr, ami->reason);
        }
    } else if (ServerOpts.use_regex && (ami = find_maskitem(realname, NULL, MASKITEM_GECOS_REGEX, 1))) {
        /* Realname replacement */
        if (ServerOpts.hide_gcos_with_sgline) {
            realname = ServerOpts.realname_replacement;
        } else {
            return exit_client(sptr, sptr, ami->reason);
	}
    }
    return do_local_user(parv[0], cptr, sptr, username, host, NULL, server, 0, realname);
}