/*
 *  Phishing module: allow list implementation.
 *
 *  Copyright (C) 2013-2022 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 *  Copyright (C) 2007-2013 Sourcefire, Inc.
 *
 *  Authors: Török Edvin
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 *
 *  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.
 */

#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif

#ifdef CL_THREAD_SAFE
#ifndef _REENTRANT
#define _REENTRANT
#endif
#endif

#include <stdio.h>
#include <string.h>
#include <ctype.h>

#include "clamav.h"
#include "others.h"
#include "phish_allow_list.h"
#include "regex_list.h"

#include "mpool.h"

cl_error_t allow_list_match(const struct cl_engine* engine, char* real_url, const char* display_url, int hostOnly)
{
    const char* info; /*unused*/
    cli_dbgmsg("Phishing: looking up in allow list: %s:%s; host-only:%d\n", real_url, display_url, hostOnly);
    return engine->allow_list_matcher ? regex_list_match(engine->allow_list_matcher, real_url, display_url, NULL, hostOnly, &info, 1) : 0;
}

cl_error_t init_allow_list(struct cl_engine* engine)
{
    if (engine) {
        engine->allow_list_matcher = (struct regex_matcher*)MPOOL_MALLOC(engine->mempool, sizeof(struct regex_matcher));
        if (!engine->allow_list_matcher) {
            cli_errmsg("Phish_allow_list: Unable to allocate memory for allow_list_match\n");
            return CL_EMEM;
        }
#ifdef USE_MPOOL
        ((struct regex_matcher*)(engine->allow_list_matcher))->mempool = engine->mempool;
#endif
        return init_regex_list(engine->allow_list_matcher, engine->dconf->other & OTHER_CONF_PREFILTERING);
    } else
        return CL_ENULLARG;
}

int is_allow_list_ok(const struct cl_engine* engine)
{
    return (engine && engine->allow_list_matcher) ? is_regex_ok(engine->allow_list_matcher) : 1;
}

void allow_list_done(struct cl_engine* engine)
{
    if (engine && engine->allow_list_matcher) {
        regex_list_done(engine->allow_list_matcher);
        MPOOL_FREE(engine->mempool, engine->allow_list_matcher);
        engine->allow_list_matcher = NULL;
    }
}