<?php

defined( 'ABSPATH' ) || die( 'Cheatin&#8217; uh?' );
define( 'SWCFPC_ADVANCED_CACHE', true );

if( !swcfpc_is_this_page_cachable() )
    return;

if( isset( $_SERVER['REQUEST_METHOD'] ) && strcasecmp($_SERVER['REQUEST_METHOD'], "GET") != 0 )
    return;

$swcfpc_fallback_cache_config_path = WP_CONTENT_DIR . "/wp-cloudflare-super-page-cache/{$_SERVER['HTTP_HOST']}/";
$swcfpc_fallback_cache_path = WP_CONTENT_DIR . "/wp-cloudflare-super-page-cache/{$_SERVER['HTTP_HOST']}/fallback_cache/";
$swcfpc_fallback_cache_key = swcfpc_fallback_cache_get_current_page_cache_key();

if( !file_exists("{$swcfpc_fallback_cache_config_path}main_config.php") )
    return;

include( "{$swcfpc_fallback_cache_config_path}main_config.php" );

$swcfpc_config = json_decode( stripslashes($swcfpc_config), true );

if( !is_array($swcfpc_config) )
    return;

if( swcfpc_fallback_cache_is_url_to_exclude() )
    return;

if( swcfpc_fallback_cache_is_cookie_to_exclude() )
    return;

if( swcfpc_fallback_cache_is_cookie_to_exclude_cf_worker() )
    return;

if( file_exists($swcfpc_fallback_cache_path . $swcfpc_fallback_cache_key) && !swcfpc_fallback_cache_is_expired_page( $swcfpc_fallback_cache_key ) ) {

    $cache_controller = "s-maxage={$swcfpc_config['cf_maxage']}, max-age={$swcfpc_config['cf_browser_maxage']}";
    $stored_headers = swcfpc_fallback_cache_get_stored_headers($swcfpc_fallback_cache_path,  $swcfpc_fallback_cache_key);

    if( (int) $swcfpc_config['cf_maxage'] > 0 ) {
        header_remove('Set-Cookie');
    }

    header_remove('Pragma');
    header_remove('Expires');
    header_remove('Cache-Control');
    header("Cache-Control: {$cache_controller}");
    header('X-WP-CF-Super-Cache: cache');
    header('X-WP-CF-Super-Cache-Active: 1');
    header('X-WP-CF-Fallback-Cache: 1');
    header("X-WP-CF-Super-Cache-Cache-Control: {$cache_controller}");

    if( isset($swcfpc_config['cf_woker_enabled']) && $swcfpc_config['cf_woker_enabled'] > 0 && isset($swcfpc_config['cf_worker_bypass_cookies']) && is_array($swcfpc_config['cf_worker_bypass_cookies']) && count($swcfpc_config['cf_worker_bypass_cookies']) > 0 ) {
        header( 'X-WP-CF-Super-Cache-Cookies-Bypass: ' . trim( implode( '|', $swcfpc_config['cf_worker_bypass_cookies'] ) ) );
    }

    if( $stored_headers ) {

        foreach($stored_headers as $single_header) {
            header($single_header, false);
        }

    }

    die( file_get_contents($swcfpc_fallback_cache_path . $swcfpc_fallback_cache_key).'<!-- ADVANCED CACHE -->');

}

ob_start( 'swcfpc_fallback_cache_end' );


function swcfpc_is_this_page_cachable() {

    if( 
        swcfpc_is_api_request() || 
        ( isset( $GLOBALS['pagenow'] ) && in_array( $GLOBALS['pagenow'], array( 'wp-login.php', 'wp-register.php' ) ) ) || 
        ( isset( $_SERVER['REQUEST_URI'] ) && substr( $_SERVER['REQUEST_URI'], 0, 16 ) == '/wp-register.php' ) || 
        ( isset( $_SERVER['REQUEST_URI'] ) && substr( $_SERVER['REQUEST_URI'], 0, 13 ) == '/wp-login.php' ) || 
        ( isset( $_SERVER['REQUEST_METHOD'] ) && strcasecmp( $_SERVER['REQUEST_METHOD'], 'GET' ) != 0 ) || 
        ( !defined('SWCFPC_CACHE_BUSTER' ) && isset( $_GET['swcfpc'] ) ) || 
        ( defined( 'SWCFPC_CACHE_BUSTER' ) && isset( $_GET[SWCFPC_CACHE_BUSTER] ) ) || 
        is_admin() || 
        ( isset( $_SERVER['HTTP_X_REQUESTED_WITH'] ) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest' ) || 
        ( defined( 'DOING_AJAX' ) && DOING_AJAX ) || 
        ( defined( 'WP_CLI' ) && WP_CLI ) || 
        ( defined( 'DOING_CRON' ) && DOING_CRON ) 
    ) {
        return false;
    }

    return true;

}


function swcfpc_is_api_request() {

    // Wordpress standard API
    if( (defined('REST_REQUEST') && REST_REQUEST) || strcasecmp( substr($_SERVER['REQUEST_URI'], 0, 8), '/wp-json' ) == 0 )
        return true;

    // WooCommerce standard API
    if( strcasecmp( substr($_SERVER['REQUEST_URI'], 0, 8), '/wc-api/' ) == 0 )
        return true;

    // WooCommerce standard API
    if( strcasecmp( substr($_SERVER['REQUEST_URI'], 0, 9), '/edd-api/' ) == 0 )
        return true;

    return false;

}


function swcfpc_fallback_cache_end( $html ) {

    global $sw_cloudflare_pagecache;

    if( strlen( trim($html) ) == 0 )
        return $html;

    if( !is_object($sw_cloudflare_pagecache) )
        return $html;

    $swcfpc_objects = $sw_cloudflare_pagecache->get_objects();

    if( $sw_cloudflare_pagecache->get_single_config('cf_fallback_cache', 0) == 0 )
        return $html;

    if( $swcfpc_objects['cache_controller']->is_cache_enabled() && !$swcfpc_objects['cache_controller']->is_url_to_bypass() && !$swcfpc_objects['cache_controller']->can_i_bypass_cache() && isset( $_SERVER['REQUEST_METHOD'] ) && strcasecmp($_SERVER['REQUEST_METHOD'], 'GET') == 0 ) {

        if (isset($_SERVER['HTTP_USER_AGENT']) && strcasecmp($_SERVER['HTTP_USER_AGENT'], 'ua-swcfpc-fc') == 0)
            return $html;

        $cache_path = $swcfpc_objects['fallback_cache']->fallback_cache_init_directory();
        $cache_key = swcfpc_fallback_cache_get_current_page_cache_key();

        if (!file_exists($cache_path . $cache_key) || $swcfpc_objects['fallback_cache']->fallback_cache_is_expired_page($cache_key)) {

            if ($sw_cloudflare_pagecache->get_single_config('cf_fallback_cache_ttl', 0) == 0) {
                $ttl = 0;
            } else {
                $ttl = time() + $sw_cloudflare_pagecache->get_single_config('cf_fallback_cache_ttl', 0);
            }

            if( $ttl > 0 ) {
                $html .= "\n<!-- Page retrieved from Super Page Cache for Cloudflare's fallback cache - page generated @ " . date('Y-m-d H:i:s') . ' - fallback cache expiration @ ' . date('Y-m-d H:i:s', $ttl) . " - cache key {$cache_key} -->";
            } else {
                $html .= "\n<!-- Page retrieved from Super Page Cache for Cloudflare's fallback cache - page generated @ " . date('Y-m-d H:i:s') . " - fallback cache expiration @ never expires - cache key {$cache_key} -->";
            }

            // Provide a filter to modify the HTML before it is cached
            $html = apply_filters( 'swcfpc_normal_fallback_cache_html', $html );
            
            file_put_contents($cache_path . $cache_key, $html);

            // Update TTL
            $swcfpc_objects['fallback_cache']->fallback_cache_set_single_ttl($cache_key, $ttl);
            $swcfpc_objects['fallback_cache']->fallback_cache_update_ttl_registry();

            // Store headers
            if ($sw_cloudflare_pagecache->get_single_config('cf_fallback_cache_save_headers', 0) > 0) {
                swcfpc_fallback_cache_save_headers($cache_path, $cache_key);
            }

        }

    }

    return $html;

}


function swcfpc_fallback_cache_get_current_page_cache_key( $url=null ) {

    $replacements = array( '://', '/', '?', '#', '&', '.', ',', '@', '-', '\'', '"', '%', ' ', '\\', '=' );

    if( !is_null($url) ) {

        $parts = parse_url( strtolower($url) );

        if( !$parts )
            return false;

        $current_uri = isset($parts['path']) ? $parts['path'] : '/';

        if( isset($parts['query']) )
            $current_uri .= "?{$parts['query']}";

        if( $current_uri == '/' )
            $current_uri = $parts['host'];

    }
    else {

        $current_uri = $_SERVER['REQUEST_URI'];

        if( $current_uri == '/' ) {
            $current_uri = $_SERVER['HTTP_HOST'];
        }
    }

    if( substr($current_uri, 0, 1) == '/' )
        $current_uri = substr($current_uri, 1);

    if( substr($current_uri, -1, 1) == '/' )
        $current_uri = substr($current_uri, 0, -1);

    if( has_filter( 'swcfpc_fc_modify_current_url' ) ) {
        
        // Modify the current URL by yourself to remove the query string or any other unwanted characters
        $current_uri = apply_filters( 'swcfpc_fc_modify_current_url', $current_uri );

        $cache_key = str_replace( $replacements, '_', $current_uri );

    } else {

        $cache_key = str_replace( $replacements, '_', swcfpc_fallback_cache_remove_url_parameters($current_uri) );
    }


    // Fix error fnmatch(): Filename exceeds the maximum allowed length
    $cache_key = sha1( $cache_key );

    /*
    if( strlen($cache_key) > 250 ) {
        $cache_key = substr($cache_key, 0, -32);
        $cache_key .= md5( $current_uri );
    }
    */

    $cache_key .= '.html';

    return $cache_key;

}

function swcfpc_get_unparsed_url( $parsed_url ) {
    // PHP_URL_SCHEME
    $scheme   = isset($parsed_url['scheme']) ? $parsed_url['scheme'] . '://' : '';
    $host     = isset($parsed_url['host']) ? $parsed_url['host'] : '';
    $port     = isset($parsed_url['port']) ? ':' . $parsed_url['port'] : '';
    $user     = isset($parsed_url['user']) ? $parsed_url['user'] : '';
    $pass     = isset($parsed_url['pass']) ? ':' . $parsed_url['pass']  : '';
    $pass     = ($user || $pass) ? "$pass@" : '';
    $path     = isset($parsed_url['path']) ? $parsed_url['path'] : '';
    $query    = isset($parsed_url['query']) ? '?' . $parsed_url['query'] : '';
    $fragment = isset($parsed_url['fragment']) ? '#' . $parsed_url['fragment'] : '';
    return "{$scheme}{$user}{$pass}{$host}{$port}{$path}{$query}{$fragment}";
}

function swcfpc_fallback_cache_remove_url_parameters( $url ) {

    $url_parsed = parse_url( $url );
    $url_query_params = [];

    if( array_key_exists( 'query', $url_parsed ) ) {

        if( $url_parsed[ 'query' ] === '' ) {

            // this means the URL ends with just ? i.e. /example-page/? - so just remove the last character ? from the URL
            $url = substr( trim( $url ), 0, -1 );

        } else {

            // Set the ignored query param array
            $ignored_query_params = [
                'Browser',
                'C',
                'GCCON',
                'MCMP',
                'MarketPlace',
                'PD',
                'Refresh',
                'Sens',
                'ServiceVersion',
                'Source',
                'Topic',
                '__WB_REVISION__',
                '__cf_chl_jschl_tk__',
                '__d',
                '__hsfp',
                '__hssc',
                '__hstc',
                '__s',
                '_branch_match_id',
                '_bta_c',
                '_bta_tid',
                '_com',
                '_escaped_fragment_',
                '_ga',
                '_ga-ft',
                '_gl',
                '_hsmi',
                '_ke',
                '_kx',
                '_paged',
                '_sm_byp',
                '_sp',
                '_szp',
                '_thumbnail_id',
                '3x',
                'a',
                'a_k',
                'ac',
                'acpage',
                'action-box',
                'action_object_map',
                'action_ref_map',
                'action_type_map',
                'activecampaign_id',
                'ad',
                'ad_frame_full',
                'ad_frame_root',
                'ad_name',
                'adclida',
                'adid',
                'adlt',
                'adsafe_ip',
                'adset_name',
                'advid',
                'aff_sub2',
                'afftrack',
                'afterload',
                'ak_action',
                'alt_id',
                'am',
                'amazingmurphybeds',
                'amp;',
                'amp;amp',
                'amp;amp;amp',
                'amp;amp;amp;amp',
                'amp;utm_campaign',
                'amp;utm_medium',
                'amp;utm_source',
                'amp%3Butm_content',
                'ampStoryAutoAnalyticsLinker',
                'ampstoryautoanalyticslinke',
                'an',
                'ap',
                'ap_id',
                'apif',
                'apipage',
                'as_occt',
                'as_q',
                'as_qdr',
                'askid',
                'atFileReset',
                'atfilereset',
                'aucid',
                'auct',
                'audience',
                'author',
                'awt_a',
                'awt_l',
                'awt_m',
                'b2w',
                'back',
                'bannerID',
                'blackhole',
                'blockedAdTracking',
                'blog-reader-used',
                'blogger',
                'body',
                'br',
                'bsft_aaid',
                'bsft_clkid',
                'bsft_eid',
                'bsft_ek',
                'bsft_lx',
                'bsft_mid',
                'bsft_mime_type',
                'bsft_tv',
                'bsft_uid',
                'bvMethod',
                'bvTime',
                'bvVersion',
                'bvb64',
                'bvb64resp',
                'bvplugname',
                'bvprms',
                'bvprmsmac',
                'bvreqmerge',
                'cacheburst',
                'campaign',
                'campaign_id',
                'campaign_name',
                'campid',
                'catablog-gallery',
                'channel',
                'checksum',
                'ck_subscriber_id',
                'cmplz_region_redirect',
                'cmpnid',
                'cn-reloaded',
                'code',
                'comment',
                'content_ad_widget',
                'cost',
                'cr',
                'crl8_id',
                'crlt.pid',
                'crlt_pid',
                'crrelr',
                'crtvid',
                'ct',
                'cuid',
                'daksldlkdsadas',
                'dcc',
                'dfp',
                'dm_i',
                'domain',
                'dosubmit',
                'dsp_caid',
                'dsp_crid',
                'dsp_insertion_order_id',
                'dsp_pub_id',
                'dsp_tracker_token',
                'dt',
                'dur',
                'durs',
                'e',
                'ee',
                'ef_id',
                'el',
                'emailID',
                'env',
                'epik',
                'erprint',
                'et_blog',
                'exch',
                'externalid',
                'fb_action_ids',
                'fb_action_types',
                'fb_ad',
                'fb_source',
                'fbclid',
                'fbzunique',
                'fg-aqp',
                'fireglass_rsn',
                'firstName',
                'fo',
                'fp_sid',
                'fpa',
                'fref',
                'fs',
                'furl',
                'fwp_lunch_restrictions',
                'ga_action',
                'gclid',
                'gclsrc',
                'gdffi',
                'gdfms',
                'gdftrk',
                'gf_page',
                'gidzl',
                'goal',
                'gooal',
                'gpu',
                'gtVersion',
                'haibwc',
                'hash',
                'hc_location',
                'hemail',
                'hid',
                'highlight',
                'hl',
                'home',
                'hsa_acc',
                'hsa_ad',
                'hsa_cam',
                'hsa_grp',
                'hsa_kw',
                'hsa_mt',
                'hsa_net',
                'hsa_src',
                'hsa_tgt',
                'hsa_ver',
                'ias_campId',
                'ias_chanId',
                'ias_dealId',
                'ias_dspId',
                'ias_impId',
                'ias_placementId',
                'ias_pubId',
                'ical',
                'ict',
                'ie',
                'igshid',
                'im',
                'ipl',
                'jw_start',
                'jwsource',
                'k',
                'key1',
                'key2',
                'klaviyo',
                'ksconf',
                'ksref',
                'l',
                'label',
                'lang',
                'ldtag_cl',
                'level1',
                'level2',
                'level3',
                'level4',
                'limit',
                'lng',
                'load_all_comments',
                'lt',
                'ltclid',
                'ltd',
                'lucky',
                'm',
                'm?sales_kw',
                'matomo_campaign',
                'matomo_cid',
                'matomo_content',
                'matomo_group',
                'matomo_keyword',
                'matomo_medium',
                'matomo_placement',
                'matomo_source',
                'max-results',
                'mc_cid',
                'mc_eid',
                'mdrv',
                'mediaserver',
                'memset',
                'mibextid',
                'mkcid',
                'mkevt',
                'mkrid',
                'mkwid',
                'mkt_tok',
                'ml_subscriber',
                'ml_subscriber_hash',
                'mobileOn',
                'mode',
                'moderation-hash',
                'modernpatio',
                'month',
                'msID',
                'msclkid',
                'msg',
                'mtm_campaign',
                'mtm_cid',
                'mtm_content',
                'mtm_group',
                'mtm_keyword',
                'mtm_medium',
                'mtm_placement',
                'mtm_source',
                'murphybedstoday',
                'mwprid',
                'n',
                'name',
                'native_client',
                'navua',
                'nb',
                'nb_klid',
                'nowprocketcache',
                'o',
                'okijoouuqnqq',
                'org',
                'pa_service_worker',
                'partnumber',
                'pcmtid',
                'pcode',
                'pcrid',
                'pfstyle',
                'phrase',
                'pid',
                'piwik_campaign',
                'piwik_keyword',
                'piwik_kwd',
                'pk_campaign',
                'pk_keyword',
                'pk_kwd',
                'placement',
                'plat',
                'platform',
                'playsinline',
                'position',
                'pp',
                'pr',
                'preview',
                'preview_id',
                'preview_nonce',
                'prid',
                'print',
                'q',
                'q1',
                'qsrc',
                'r',
                'rd',
                'rdt_cid',
                'redig',
                'redir',
                'ref',
                'reftok',
                'relatedposts_hit',
                'relatedposts_origin',
                'relatedposts_position',
                'remodel',
                'replytocom',
                'rest_route',
                'reverse-paginate',
                'rid',
                'rnd',
                'rndnum',
                'robots_txt',
                'rq',
                'rsd',
                's_kwcid',
                'sa',
                'safe',
                'said',
                'sales_cat',
                'sales_kw',
                'sb_referer_host',
                'scrape',
                'script',
                'scrlybrkr',
                'search',
                'sellid',
                'sersafe',
                'sfn_data',
                'sfn_trk',
                'sfns',
                'sfw',
                'sha1',
                'share',
                'shared',
                'showcomment',
                'showComment',
                'si',
                'sid',
                'sid1',
                'sid2',
                'sidewalkShow',
                'sig',
                'site',
                'site_id',
                'siteid',
                'slicer1',
                'slicer2',
                'source',
                'spref',
                'spvb',
                'sra',
                'src',
                'srk',
                'srp',
                'ssp_iabi',
                'ssts',
                'stylishmurphybeds',
                'subId1 ',
                'subId2 ',
                'subId3',
                'subid',
                'swcfpc',
                'tail',
                'teaser',
                'test',
                'timezone',
                'toWww',
                'triplesource',
                'trk_contact',
                'trk_module',
                'trk_msg',
                'trk_sid',
                'tsig',
                'turl',
                'u',
                'unapproved',
                'up_auto_log',
                'upage',
                'updated-max',
                'uptime',
                'us_privacy',
                'usegapi',
                'userConsent',
                'usqp',
                'utm',
                'utm_campa',
                'utm_campaign',
                'utm_content',
                'utm_expid',
                'utm_id',
                'utm_medium',
                'utm_reader',
                'utm_referrer',
                'utm_source',
                'utm_sq',
                'utm_ter',
                'utm_term',
                'v',
                'vc',
                'vf',
                'vgo_ee',
                'vp',
                'vrw',
                'vz',
                'wbraid',
                'webdriver',
                'wing',
                'wpdParentID',
                'wpmp_switcher',
                'wref',
                'wswy',
                'wtime',
                'x',
                'zMoatImpID',
                'zarsrc',
                'zeffdn'
            ];

            // First parse the query params to an array to manage it better
            parse_str( $url_parsed[ 'query' ], $url_query_params );

            // Loop though $ignored_query_params
            foreach( $ignored_query_params as $ignored_query_param ) {

                // Check if that query param is present in $url_query_params
                if( array_key_exists( $ignored_query_param, $url_query_params ) ) {

                    // The ignored query param is present in the $url_query_params. So, unset it from there
                    unset( $url_query_params[ $ignored_query_param ] );
                }
            }

            // Now lets check if we have any query params left in $url_query_params
            if( count( $url_query_params ) > 0 ) {

                $new_url_query_params = http_build_query( $url_query_params );
                $url_parsed[ 'query' ] = $new_url_query_params;

            } else {
                // Remove the query section from parsed URL
                unset( $url_parsed[ 'query' ] );
            }

            // Get the new current URL without the marketing query params
            $url = swcfpc_get_unparsed_url( $url_parsed );
        }
    }

    return $url;

}


function swcfpc_fallback_cache_is_expired_page( $cache_key ) {

    $config_path = WP_CONTENT_DIR . "/wp-cloudflare-super-page-cache/{$_SERVER['HTTP_HOST']}/";

    if( !file_exists("{$config_path}ttl_registry.json") )
        return false;

    $swcfpc_ttl_registry = json_decode( file_get_contents( "{$config_path}ttl_registry.json" ), true );
    $current_ttl = 0;

    if( !is_array($swcfpc_ttl_registry) || !isset($swcfpc_ttl_registry[$cache_key]) )
        $current_ttl = 0;
    else if( is_array($swcfpc_ttl_registry[$cache_key]))
        $current_ttl = $swcfpc_ttl_registry[$cache_key];
    else
        $current_ttl = (int) $swcfpc_ttl_registry[$cache_key];

    if( $current_ttl > 0 && time() > $current_ttl )
        return true;

    return false;


}


function swcfpc_fallback_cache_is_cookie_to_exclude() {

    global $swcfpc_config;

    if( count($_COOKIE) == 0 )
        return false;

    if( is_array($swcfpc_config) && !isset($swcfpc_config['cf_fallback_cache_excluded_cookies']) )
        return false;

    $excluded_cookies = $swcfpc_config['cf_fallback_cache_excluded_cookies'];

    if( count($excluded_cookies) == 0 )
        return false;

    $cookies = array_keys( $_COOKIE );

    foreach ($excluded_cookies as $single_cookie) {

        if( count( preg_grep("#{$single_cookie}#", $cookies) ) > 0 )
            return true;

    }

    return false;

}


function swcfpc_fallback_cache_is_cookie_to_exclude_cf_worker() {

    global $swcfpc_config;

    if( count($_COOKIE) == 0 )
        return false;

    if( !is_array($swcfpc_config) )
        return false;

    if( !isset($swcfpc_config['cf_worker_bypass_cookies']) || !isset($swcfpc_config['cf_woker_enabled']) )
        return false;

    if( (int) $swcfpc_config['cf_woker_enabled'] == 0 )
        return false;

    $excluded_cookies = $swcfpc_config['cf_worker_bypass_cookies'];

    if( count($excluded_cookies) == 0 )
        return false;

    $cookies = array_keys( $_COOKIE );

    foreach ($excluded_cookies as $single_cookie) {

        if( count( preg_grep("#{$single_cookie}#", $cookies) ) > 0 )
            return true;

    }

    return false;

}


function swcfpc_fallback_cache_is_url_to_exclude($url=false) {

    global $swcfpc_config;

    if( is_array($swcfpc_config) && isset($swcfpc_config['cf_fallback_cache_prevent_cache_urls_without_trailing_slash']) && $swcfpc_config['cf_fallback_cache_prevent_cache_urls_without_trailing_slash'] > 0 && !preg_match('/\/$/', $_SERVER['REQUEST_URI']) )
        return true;

    if( is_array($swcfpc_config) && !isset($swcfpc_config['cf_fallback_cache_excluded_urls']) )
        return false;

    $excluded_urls = $swcfpc_config['cf_fallback_cache_excluded_urls'];

    if( is_array($excluded_urls) && count($excluded_urls) > 0 ) {

        if( $url === false ) {

            $current_url = $_SERVER['REQUEST_URI'];

            if( isset($_SERVER['QUERY_STRING']) && strlen($_SERVER['QUERY_STRING']) > 0 )
                $current_url .= "?{$_SERVER['QUERY_STRING']}";

        }
        else {
            $current_url = $url;
        }

        foreach( $excluded_urls as $url_to_exclude ) {

            if( swcfpc_wildcard_match($url_to_exclude, $current_url) )
                return  true;

            /*
            if( fnmatch($url_to_exclude, $current_url, FNM_CASEFOLD) ) {
                return true;
            }
            */

        }

    }

    return false;

}


function swcfpc_fallback_cache_save_headers( $fallback_cache_path, $cache_key ) {

    $headers_file = "{$fallback_cache_path}{$cache_key}.headers.json";

    $headers_list = headers_list();
    $headers_count = count( $headers_list );

    for( $i=0; $i<$headers_count; ++$i ) {

        list($header_name, $header_value) = explode(':', $headers_list[$i]);

        if(
            strcasecmp($header_name, 'cache-control') == 0 ||
            strcasecmp($header_name, 'set-cookie') == 0 ||
            strcasecmp( substr($header_name, 0, 19), 'X-WP-CF-Super-Cache' ) == 0
        ) {
            unset($headers_list[$i]);
            continue;
        }

    }

    if( count($headers_list) == 0 ) {

        if( file_exists($headers_file) )
            @unlink($headers_file);

        return false;

    }

    file_put_contents( $headers_file, json_encode($headers_list) );

    return true;

}


function swcfpc_fallback_cache_get_stored_headers( $fallback_cache_path, $cache_key ) {

    $headers_file = "{$fallback_cache_path}{$cache_key}.headers.json";

    if( file_exists($headers_file) ) {

        $swcfpc_headers = json_decode( file_get_contents( $headers_file ), true );

        if( is_array($swcfpc_headers) && count($swcfpc_headers) > 0 )
            return $swcfpc_headers;

    }

    return false;

}


function swcfpc_wildcard_match($pattern, $subject) {

    $pattern = '#^'.preg_quote($pattern).'$#i'; // Case insensitive
    $pattern = str_replace('\*', '.*', $pattern);
    //$pattern = str_replace('\.', '.', $pattern);

    if(!preg_match($pattern, $subject, $regs))
        return false;

    return true;

}