....................................../////.===Hehe-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! 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Current File : /var/softaculous/sitepad/editor/site-data/plugins/documentor/includes//class-export.php
<?php
/**
 * Export to HTML.
 *
 * @package documentor
 */

/**
 * Export to HTML Class
 */
class Documentor_Export {
    /**
     * Image extensions.
     *
     * @var array
     */
    public $img_extensions = array( 'gif', 'jpg', 'jpeg', 'png', 'tiff', 'tif', 'bmp', 'svg' );

    /**
     * Regexp to remove from final html.
     *
     * @var string
     */
    public $clean_html_regexp =
    '/<link.*(rel=(\"|\')profile(\"|\'))[^>]*?>/i
/<link.*(rel=(\"|\')pingback(\"|\'))[^>]*?>/i
/<link.*(rel=(\"|\')dns-prefetch(\"|\'))[^>]*?>/i
/<link.*(rel=(\"|\')alternate(\"|\'))[^>]*?>/i
/<link.*(rel=(\"|\')https:\/\/api.w.org\/(\"|\'))[^>]*?>/i
/<link.*(rel=(\"|\')EditURI(\"|\'))[^>]*?>/i
/<link.*(rel=(\"|\')wlwmanifest(\"|\'))[^>]*?>/i
/<link.*(rel=(\"|\')next(\"|\'))[^>]*?>/i
/<link.*(rel=(\"|\')prev(\"|\'))[^>]*?>/i
/<link.*(rel=(\"|\')canonical(\"|\'))[^>]*?>/i
/<link.*(rel=(\"|\')shortlink(\"|\'))[^>]*?>/i
/<meta.*(name=(\"|\')generator(\"|\'))[^>]*?>/i';

    /**
     * Custom CSS.
     *
     * @var string
     */
    public $custom_css =
    '.documentor-single-feedback,
.documentor-search-form,
.documentor-search-form-result {
    display: none;
}
body {
    background-color: #fff;
}';
    /**
     * Custom JS.
     *
     * @var string
     */
    public $custom_js = '';

    /**
     * Max delta.
     *
     * @var integer
     */
    public $max_delta = 1;

    /**
     * Construct.
     */
    public function __construct() {
        if ( function_exists( 'domain_mapping_siteurl' ) ) {
            $this->wp_site_url    = domain_mapping_siteurl( get_current_blog_id() );
            $this->wp_content_url = str_replace( get_original_url( $this->wp_site_url ), $this->wp_site_url, content_url() );
        } else {
            $this->wp_site_url    = site_url();
            $this->wp_content_url = content_url();
        }
        $this->wp_content_name = '/' . wp_basename( WP_CONTENT_DIR );
        $this->wp_root_url     = str_replace( $this->wp_content_name, '', $this->wp_content_url );
        $this->wp_root_dir     = str_replace( $this->wp_content_name, '', WP_CONTENT_DIR );

        $export_folder     = 'documentor-export';
        $wp_upload_dir     = wp_upload_dir();
        $this->export_path = $wp_upload_dir['basedir'] . '/' . $export_folder;
        $this->export_url  = $wp_upload_dir['baseurl'] . '/' . $export_folder;
    }

    /**
     * Array with saved URLs.
     *
     * @var array
     */
    protected $saved_urls = array();

    /**
     * Save URL.
     *
     * @param string $old_url - old URL.
     * @param string $new_url - new URL.
     */
    public function save_url( $old_url, $new_url ) {
        $this->saved_urls[ $old_url ] = $new_url;
    }

    /**
     * Get URL.
     *
     * @param string $url - url.
     */
    public function get_url( $url ) {
        return isset( $this->saved_urls[ $url ] ) ? $this->saved_urls[ $url ] : false;
    }

    /**
     * Replace URLs.
     *
     * @param string $content - content.
     */
    public function replace_urls( $content ) {
        foreach ( $this->saved_urls as $old_url => $new_url ) {
            if ( preg_match( '/\.html$/', $new_url ) ) {
                $content = str_replace( '"' . $old_url . '"', '"' . $new_url . '"', $content );
                $content = str_replace( '\'' . $old_url . '\'', '\'' . $new_url . '\'', $content );
            } else {
                $content = str_replace( $old_url, $new_url, $content );
            }
        }
        return $content;
    }

    /**
     * Run exporter.
     *
     * @param int $doc_id - documenta ID.
     */
    public function run( $doc_id ) {
        // Turn off PHP output compression.
        // phpcs:disable
        $previous = error_reporting( error_reporting() ^ E_WARNING );
        ini_set( 'output_buffering', 'off' );
        ini_set( 'zlib.output_compression', false );
        error_reporting( $previous );
        // phpcs:enable

        if ( $GLOBALS['is_nginx'] ) {
            // Setting this header instructs Nginx to disable fastcgi_buffering
            // and disable gzip for this request.
            header( 'X-Accel-Buffering: no' );
            header( 'Content-Encoding: none' );
        }

        // Start the event stream.
        header( 'Content-Type: text/event-stream' );

        // 2KB padding for IE
        // phpcs:ignore
        echo ':' . str_repeat( ' ', 2048 ) . "\n\n";

        // Time to run the import!
        set_time_limit( 0 );

        // Ensure we're not buffered.
        wp_ob_end_flush_all();
        flush();

        // get all pages.
        $docs = get_pages(
            array(
                'post_type'      => 'docs',
                'child_of'       => $doc_id,
                'post_status'    => array( 'publish', 'draft' ),
                'posts_per_page' => '-1', // phpcs:ignore
                'sort_column'    => 'menu_order',
                'order'          => 'ASC',
            )
        );
        $docs = $this->build_tree( $docs, $doc_id );

        // get main doc.
        array_unshift(
            $docs,
            array(
                'id'        => $doc_id,
                'file_name' => 'index.html',
                'permalink' => get_permalink( $doc_id ),
            )
        );

        // save urls.
        foreach ( $docs as $doc ) {
            $this->save_url( $doc['permalink'], $doc['file_name'] );
        }
        $this->max_delta += count( $docs );

        // export folder path.
        $export_folder_name = get_post_field( 'post_name', $doc_id );
        $export_path        = trailingslashit( $this->export_path . '/' . $export_folder_name );

        // remove export folder.
        $this->rimraf_dir( $export_path );

        // run export.
        foreach ( $docs as $doc ) {
            $this->emit_sse_message( $doc['file_name'] );
            $this->run_single( $doc['permalink'], $doc['file_name'], $export_path );
        }

        // zip.
        $this->emit_sse_message( 'ZIP Documentation' );
        $result = $this->zip( $doc_id );

        $this->emit_sse_message( $result, 'complete' );
    }

    /**
     * Run single document.
     *
     * @param string $permalink - page link.
     * @param string $file_name - file name.
     * @param string $export_path - export path.
     */
    public function run_single( $permalink, $file_name, $export_path ) {
        // request page.
        $content = wp_remote_get( $permalink );

        if ( is_wp_error( $content ) ) {
            return 'Can\'t get post content.';
        }

        // get page html content.
        $content = wp_remote_retrieve_body( $content );

        // check if html.
        if ( ( ( stripos( $content, '<html' ) === false ) && ( stripos( $content, '<!DOCTYPE html' ) === false ) ) || preg_match( '/<html[^>]*(?:amp|⚡)/', $content ) === 1 || stripos( $content, '<xsl:stylesheet' ) !== false ) {
            return 'Failed page request.';
        }

        // parse and save all js files.
        if ( preg_match_all( '#<script.*</script>#Usmi', $content, $matches ) ) {
            foreach ( $matches[0] as $tag ) {
                if ( preg_match( '#<script[^>]*src=("|\')([^>]*)("|\')#Usmi', $tag, $source ) ) {
                    $url  = $this->normalize_url( $source[2] );
                    $path = $this->get_path( $url );

                    // copy file.
                    if ( $path && ! $this->get_url( $url ) ) {
                        $relative_path = $this->get_assets_relative_path( $path );
                        $copy_to       = $export_path . '/' . $relative_path;

                        $this->copy_file( $path, $copy_to );

                        $this->save_url( $url, '.' . $relative_path );
                    }
                }
            }
        }

        // parse and save all css files.
        if ( preg_match_all( '#(<link[^>]*stylesheet[^>]*>)#Usmi', $content, $matches ) ) {
            foreach ( $matches[0] as $tag ) {
                if ( preg_match( '#<link.*href=("|\')(.*)("|\')#Usmi', $tag, $source ) ) {
                    $url  = $this->normalize_url( $source[2] );
                    $path = $this->get_path( $url );

                    // copy file.
                    if ( $path && ! $this->get_url( $url ) ) {
                        $relative_path = $this->get_assets_relative_path( $path );
                        $copy_to       = $export_path . '/' . $relative_path;

                        if ( $this->copy_file( $path, $copy_to ) ) {
                            // find imported images, fonts and other files in css content.
                            $this->parse_css( $url, $export_path );
                        }

                        $this->save_url( $url, '.' . $relative_path );
                    }
                }
            }
        }

        // find all links in html.
        preg_match_all( '#\bhttps?://[^\s()<>]+(?:\([\w\d]+\)|([^[:punct:]\s]|/))#', $content, $matches );
        if ( is_array( $matches ) ) {
            foreach ( $matches[0] as $url ) {
                $url = $this->normalize_url( $url );

                // save images.
                $url_ext = pathinfo( $url, PATHINFO_EXTENSION );
                if ( in_array( $url_ext, $this->img_extensions, true ) && ! $this->get_url( $url ) ) {
                    $path = $this->get_path( $url );

                    // copy file.
                    if ( $path ) {
                        $relative_path = $this->get_assets_relative_path( $path );
                        $copy_to       = $export_path . '/' . $relative_path;

                        $this->copy_file( $path, $copy_to );

                        $this->save_url( $url, '.' . $relative_path );
                    }
                }
            }
        }

        // replace all document links.
        $content = $this->replace_urls( $content );

        // add custom js and css.
        $custom_js = documentor()->get_option( 'custom_js', 'documentor_export', $this->custom_js );
        if ( $custom_js ) {
            $content = str_replace( '</head>', "\n<script>" . $custom_js . "</script>\n\n</head>", $content );
        }
        $custom_css = documentor()->get_option( 'custom_css', 'documentor_export', $this->custom_css );
        if ( $custom_css ) {
            if ( false !== stripos( $custom_css, '</style>' ) ) {
                $custom_css = trim( preg_replace( '#<style[^>]*>(.*)</style>#is', '$1', $custom_css ) );
            }
            $content = str_replace( '</head>', '<style type="text/css">' . $custom_css . "</style>\n\n</head>", $content );
        }

        $content = $this->clean_html( $content );

        // save html file.
        $html_path = $export_path . '/' . $file_name;
        if ( ! file_exists( $html_path ) ) {
            wp_mkdir_p( pathinfo( $html_path, PATHINFO_DIRNAME ) );
            file_put_contents( $html_path, $content, 0644 ); // phpcs:ignore
        }

        unset( $content );

        return 'Exported';
    }

    /**
     * Build tree.
     *
     * @param array  $docs - all documents array.
     * @param int    $parent - parent doc id.
     * @param string $name_pre - name of parent doc.
     */
    public function build_tree( $docs, $parent = 0, $name_pre = '' ) {
        $result = array();

        if ( ! $docs ) {
            return $result;
        }

        $i = 1;
        foreach ( $docs as $key => $doc ) {
            if ( (int) $doc->post_parent === (int) $parent ) {
                $name_pre_cur = $name_pre . ( $i++ ) . '.';

                unset( $docs[ $key ] );
                $result[] = array(
                    'id'        => $doc->ID,
                    'file_name' => $name_pre_cur . $doc->post_name . '.html',
                    'permalink' => get_permalink( $doc->ID ),
                );

                // get childs.
                $result = array_merge( $result, $this->build_tree( $docs, $doc->ID, $name_pre_cur ) );
            }
        }

        return $result;
    }

    /**
     * Parse CSS.
     *
     * @param string $css_url - css url.
     * @param string $export_path - export path.
     */
    public function parse_css( $css_url, $export_path ) {
        $css_path = $this->get_path( $css_url );
        $assets   = array();

        if ( ! $css_path ) {
            return;
        }

        // get css content and remove comments.
        // phpcs:ignore
        $css_content_nocomments = preg_replace( '#/\*.*\*/#Um', '', file_get_contents( $css_path ) );

        // find imported files in css content.
        preg_match_all( "/@import[ ]*['\"]{0,}(url\()*['\"]*([^;'\"\)]*)['\"\)]*/ui", $css_content_nocomments, $matches );
        if ( is_array( $matches ) ) {
            foreach ( $matches[2] as $import ) {
                $url      = $this->normalize_url( $import );
                $path     = $this->get_path( $url, $css_url );
                $assets[] = $path;

                if ( $path && file_exists( $path ) && is_readable( $path ) ) {
                    $assets[] = $path;

                    // copy CSS file.
                    $relative_path = $this->get_assets_relative_path( $path );
                    $copy_to       = $export_path . '/' . $relative_path;

                    if ( $this->copy_file( $path, $copy_to ) ) {
                        // find imported images, fonts and other files in css content.
                        $this->parse_css( $url, $export_path );
                    }
                }
            }
        }

        // find images.
        preg_match_all( '#(background[^;{}]*url\((?!\s?"?\'?\s?data)(.*)\)[^;}]*)(?:;|$|})#Usm', $css_content_nocomments, $matches );
        if ( is_array( $matches ) ) {
            foreach ( $matches[2] as $count => $url ) {
                $path = $this->get_path( $url, $css_url );

                if ( $path ) {
                    $assets[] = $path;
                }
            }
        }

        // find fonts.
        $fonturl_regex = $this->get_fonts_regex();
        preg_match_all( $fonturl_regex, $css_content_nocomments, $matches );
        if ( is_array( $matches ) ) {
            foreach ( $matches[0] as $count => $url ) {
                $path = $this->get_path( $url, $css_url );

                if ( $path ) {
                    $assets[] = $path;
                }
            }
        }

        // copy all assets to destination folder.
        $assets = array_unique( $assets );
        foreach ( $assets as $asset ) {
            $relative_path = $this->get_assets_relative_path( $asset );
            $copy_to       = $export_path . '/' . $relative_path;

            $this->copy_file( $asset, $copy_to );
        }

        unset( $css_content_nocomments );
        unset( $assets );
    }

    /**
     * Get fonts.
     *
     * @return string
     */
    public function get_fonts_regex() {
        // regex to find fonts, externalised to avoid nasty errors for php < 5.3
        // http://stackoverflow.com/questions/21392684/extracting-urls-from-font-face-by-searching-within-font-face-for-replacement.
        return <<<'LOD'
~
(?(DEFINE)
    (?<quoted_content>
        (["']) (?>[^"'\\]++ | \\{2} | \\. | (?!\g{-1})["'] )*+ \g{-1}
    )
    (?<comment> /\* .*? \*/ )
    (?<url_skip> (?: https?: | data: ) [^"'\s)}]*+ )
    (?<other_content>
        (?> [^u}/"']++ | \g<quoted_content> | \g<comment>
          | \Bu | u(?!rl\s*+\() | /(?!\*)
          | \g<url_start> \g<url_skip> ["']?+
        )++
    )
    (?<anchor> \G(?<!^) ["']?+ | @font-face \s*+ { )
    (?<url_start> url\( \s*+ ["']?+ )
)

\g<comment> (*SKIP)(*FAIL) |

\g<anchor> \g<other_content>?+ \g<url_start> \K [./]*+

( [^"'\s)}]*+ )    # url
~xs
LOD;
    }

    /**
     * Get path from URL.
     *
     * @param string  $url - url.
     * @param boolean $base_url - base url.
     * @return string
     */
    public function get_path( $url, $base_url = false ) {
        $url = $this->normalize_url( $url );

        // phpcs:ignore
        $site_host = parse_url( $this->wp_site_url, PHP_URL_HOST );

        // normalize.
        if ( strpos( $url, '//' ) === 0 ) {
            if ( is_ssl() ) {
                $url = 'https:' . $url;
            } else {
                $url = 'http:' . $url;
            }
        } elseif ( ( strpos( $url, '//' ) === false ) && ( strpos( $url, $site_host ) === false ) ) {
            if ( $this->wp_site_url === $site_host ) {
                $url = $this->wp_site_url . $url;
            } elseif ( $base_url && strpos( $url, 'http' ) !== 0 ) {
                if ( strpos( $url, './' ) === 0 ) {
                    $url = preg_replace( '^/.\//', '', $url );
                }
                $base_url_folder = pathinfo( $base_url, PATHINFO_DIRNAME );
                $url             = trailingslashit( $base_url_folder ) . $url;
            } else {
                $subdir_levels = substr_count( preg_replace( '/https?:\/\//', '', $this->wp_site_url ), '/' );
                $url           = $this->wp_site_url . str_repeat( '/..', $subdir_levels ) . $url;
            }
        }

        // first check; hostname wp site should be hostname of url.
        // phpcs:ignore
        $this_host = @parse_url( $url, PHP_URL_HOST );
        if ( $this_host !== $site_host ) {
            return false;
        }

        // try to remove "wp root url" from url while not minding http<>https.
        $tmp_ao_root = preg_replace( '/https?:/', '', $this->wp_root_url );
        $tmp_url     = preg_replace( '/https?:/', '', $url );
        $path        = str_replace( $tmp_ao_root, '', $tmp_url );

        // final check; if path starts with :// or //, this is not a URL in the WP context and we have to assume we can't aggregate.
        if ( preg_match( '#^:?//#', $path ) ) {
            /** External script/css (adsense, etc) */
            return false;
        }

        $path = str_replace( '//', '/', $this->wp_root_dir . $path );
        return $path;
    }

    /**
     * Get assets relative path.
     *
     * @param string $path - path.
     * @return string
     */
    public function get_assets_relative_path( $path ) {
        $path = str_replace( $this->wp_root_dir, '', $path );
        $path = preg_replace( '/^\/wp-content/', '/assets/', $path );
        $path = preg_replace( '/^\/wp-includes/', '/assets/', $path );
        $path = str_replace( '//', '/', $path );
        return $path;
    }

    /**
     * Copy file.
     *
     * @param string $from - from path.
     * @param string $to - to path.
     * @return boolean
     */
    public function copy_file( $from, $to ) {
        if ( ! file_exists( $to ) && file_exists( $from ) ) {
            wp_mkdir_p( pathinfo( $to, PATHINFO_DIRNAME ) );

            // phpcs:ignore
            @copy( $from, $to );

            return true;
        }
        return false;
    }

    /**
     * Normalize url.
     *
     * @param string $url - url.
     * @return string
     */
    public function normalize_url( $url ) {
        $url = trim( $url, " \t\n\r\0\x0B\"'" );
        if ( strpos( $url, '%' ) !== false ) {
            $url = urldecode( $url );
        }
        if ( strpos( $url, '?' ) !== false ) {
            $url = strtok( $url, '?' );
        }
        return $url;
    }

    /**
     * Clean HTML string.
     *
     * @param string $html - html.
     * @return string
     */
    public function clean_html( $html ) {
        $regexp_array = explode( "\n", documentor()->get_option( 'clean_html', 'documentor_export', $this->clean_html_regexp ) );
        foreach ( $regexp_array as $reg ) {
            $reg = trim( $reg );
            if ( $reg && preg_match( $reg, null ) !== false ) {
                $html = preg_replace( $reg, '', $html );
            }
        }
        $html = preg_replace( "/(\r?\n){2,}/", "\n\n", $html );
        return $html;
    }

    /**
     * Zip document.
     *
     * @param int $main_doc_id - post id.
     * @return string
     */
    public function zip( $main_doc_id ) {
        $export_folder_name = get_post_field( 'post_name', $main_doc_id );
        $source             = $this->export_path . '/' . $export_folder_name . '/';
        $destination        = $this->export_path . '/' . $export_folder_name . '.zip';
        $dest_url           = $this->export_url . '/' . $export_folder_name . '.zip';

        if ( ! extension_loaded( 'zip' ) || ! file_exists( $source ) ) {
            return false;
        }

        // remove old zip.
        if ( file_exists( $destination ) ) {
            unlink( $destination ); // phpcs:ignore
        }

        $zip = new ZipArchive();
        if ( ! $zip->open( $destination, ZIPARCHIVE::CREATE ) ) {
            return false;
        }

        $source = str_replace( '\\', '/', realpath( $source ) );

        if ( is_dir( $source ) === true ) {
            $files = new RecursiveIteratorIterator( new RecursiveDirectoryIterator( $source ), RecursiveIteratorIterator::SELF_FIRST );

            foreach ( $files as $file ) {
                $file = str_replace( '\\', '/', $file );

                // Ignore "." and ".." folders.
                if ( in_array( substr( $file, strrpos( $file, '/' ) + 1 ), array( '.', '..' ), true ) ) {
                    continue;
                }

                $file = realpath( $file );

                if ( is_dir( $file ) === true ) {
                    $zip->addEmptyDir( str_replace( $source . '/', '', $file . '/' ) );
                } elseif ( is_file( $file ) === true ) {
                    // phpcs:ignore
                    $zip->addFromString( str_replace( $source . '/', '', $file ), file_get_contents( $file ) );
                }
            }
        } elseif ( is_file( $source ) === true ) {
            // phpcs:ignore
            $zip->addFromString( basename( $source ), file_get_contents( $source ) );
        }

        $zip->close();

        return $dest_url;
    }

    /**
     * Remove dir.
     *
     * @param string $dir - dir path.
     * @return boolean
     */
    public function rimraf_dir( $dir ) {
        $files = array_diff( scandir( $dir ), array( '.', '..' ) );
        foreach ( $files as $file ) {
            ( is_dir( "$dir/$file" ) ) ? $this->rimraf_dir( "$dir/$file" ) : unlink( "$dir/$file" ); // phpcs:ignore
        }
        return rmdir( $dir ); // phpcs:ignore
    }

    /**
     * Emit a Server-Sent Events message.
     *
     * @param string $message - message.
     * @param string $action - action.
     */
    protected function emit_sse_message( $message, $action = 'message' ) {
        $data = array(
            'action'    => $action,
            'message'   => $message,
            'max_delta' => $this->max_delta,
        );

        echo "event: message\n";
        echo 'data: ' . wp_json_encode( $data ) . "\n\n";
        // Extra padding.
        echo ':' . str_repeat( ' ', 2048 ) . "\n\n"; // phpcs:ignore
        flush();
    }
}

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