/*
 *   StripCodes UnrealIRCd module
 *   (C) 2011 cedric (irc.p2pchat.net)
 *
 *   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 1, 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.
 */

/*
 * =================================================================
 * Filename:          m_stripcodes.c
 * Description:       Usermode +c to strip out colors & control codes
 * Author:            cedric (irc.p2pchat.net)
 * Credits:           Dominick Meglio (codemastr) for nocolorumode.c, and k4be for m_npircs.c.
                      I based this module on both files
                      Syzop & katsklaw for helping me out on the forums :)
 * Dedicated to:      ibanez & arya_
 * =================================================================
 */

#include "config.h"
#include "struct.h"
#include "common.h"
#include "sys.h"
#include "numeric.h"
#include "msg.h"
#include "channel.h"
#include <time.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef _WIN32
#include <io.h>
#endif
#include <fcntl.h>
#include "h.h"
#include "proto.h"
#ifdef STRIPBADWORDS
#include "badwords.h"
#endif
#ifdef _WIN32
#include "version.h"
#endif

#define UFLAG_STRIPCODES    'c'
#define IsColorBlind(x) ((x)->umodes & UMODE_STRIPCODES)
#define     DelUmode(x)     if (x) UmodeDel(x); x = NULL
#define     DelHook(x)      if (x) HookDel(x); x = NULL

ModuleHeader MOD_HEADER(stripcodes)
  = {
    "stripcodes",
    "1.0.1",
    "color stripping usermode",
    "3.2-b8-1",
    NULL
    };


long        UMODE_STRIPCODES = 0L;
Hook        *HookStripCodes = NULL;
Umode       *UmodeStripCodes = NULL;

int stripcodes_packet(aClient *, aClient *, char **, int *);

DLLFUNC int MOD_INIT(stripcodes)(ModuleInfo *modinfo)
{
/*  #ifndef STATIC_LINKING
        ModuleSetOptions(modinfo->handle, MOD_OPT_PERM);
    #endif
*/
    HookStripCodes = HookAddEx(modinfo->handle, HOOKTYPE_PACKET, stripcodes_packet);
    UmodeStripCodes = UmodeAdd(modinfo->handle, UFLAG_STRIPCODES, UMODE_GLOBAL, umode_allow_all, &UMODE_STRIPCODES);
    if (!UmodeStripCodes)
    {
        sendto_realops("m_stripcodes: Couldn't load properly: %s", ModuleGetErrorStr(modinfo->handle));
        MOD_UNLOAD(stripcodes)(0);
        return MOD_FAILED;
    }

    return MOD_SUCCESS;
}

DLLFUNC int MOD_LOAD(stripcodes)(int module_load)
{
    return MOD_SUCCESS;
}

DLLFUNC int MOD_UNLOAD(stripcodes)(int module_unload)
{
    DelUmode(UmodeStripCodes);
    DelHook(HookStripCodes);

    return MOD_SUCCESS;
}

int stripcodes_packet(aClient *from, aClient *to, char **msg, int *len)
{
    static char buf[512];

    if((from != &me && (!IsClient(from) && IsRegistered(from))) || (to != &me && !IsClient(to)))
        return HOOK_CONTINUE;

    if (to != &me && IsColorBlind(to)) {
        strcpy(buf, StripControlCodes(*msg));

        *len = strlen(buf);
        *msg = buf;
    }

    return HOOK_CONTINUE;
}