$matches[0] = preg_replace("/\h+\>/", ">", $matches[0]); // //$matches[0] = self::remove_type_attribute_for_js($matches[0]); return $matches[0]; } static function remove_type_attribute_for_js($script){ if(preg_match("/src\s*\=\s*[\"\']/", $script)){ $script = preg_replace("/\stype\s*\=\s*[\'\"][^\"\']+[\'\"]/", " ", $script); $script = preg_replace("/\s+/", " ", $script); $script = preg_replace("/([\'\"])\s>/", "$1>", $script); } return $script; } static function remove_single_line_comments($html){ $html = preg_replace("/).)+)-->/", '', $html); $html = preg_replace("/\/\*((?:(?!\*\/).)+)\*\//", '', $html); return $html; } /* CSS Part Start */ static function minify_css($source){ $data = $source; $curl_list = array(); $curl_start_index = false; $curl_start_count = 0; $curl_end_count = 0; for($i = 0; $i < strlen( $data ); $i++){ if($data[$i] == '{'){ $curl_start_count++; if(!$curl_start_index){ $curl_start_index = $i; } } if($data[$i] == '}'){ // .icon-basic-printer:before{content:"}";} if(isset($data[$i+1]) && $data[$i+1] != "'" && $data[$i+1] != "'"){ $curl_end_count++; } } if($curl_start_count && $curl_start_count == $curl_end_count){ array_push($curl_list, array('start' => $curl_start_index - 3, 'end' => $i + 3)); $curl_start_count = 0; $curl_end_count = 0; $curl_start_index = false; } } if(!empty($curl_list)){ foreach(array_reverse($curl_list) as $key => $value){ $new_data = substr($data, $value['start'], ($value['end'] - $value['start'] + 1)); if(!preg_match("/[^\{]+\{[^\{]+\{/", $new_data)){ $new_data = preg_replace("/\s+/", " ", ((string) $new_data)); $new_data = preg_replace("/\s+}/", "}", $new_data); //removes white space before "}" $new_data = preg_replace("/}\s+/", "} ", $new_data); //removes white space after "}" $new_data = preg_replace("/\s*(\{|\;|\:)\s*/", "$1", $new_data); $data = substr_replace($data, $new_data, $value['start'], ($value['end'] - $value['start'] + 1)); }else{ $first = strpos($new_data, '{'); $last = strrpos($new_data, '}'); $new_data_tmp = substr($new_data, $first+1, $last-$first-1); $new_data_tmp = \SpeedyCache\Enhanced::minify_css($new_data_tmp); $new_data = substr_replace($new_data, $new_data_tmp, $first+1, ($last-$first-1)); $data = substr_replace($data, $new_data, $value['start'], ($value['end'] - $value['start'] + 1)); } } $source = $data; } //@media (max-width: 767px){ $source = preg_replace("/\@media\s*\(\s*(max-width|min-width)\s*\:\s*([^\(\)\{\}\s]+)\s*\)\s*\{/", "@media($1:$2){", $source); //@media (min-width: 768px) and (max-width: 1018px){ $source = preg_replace("/\@media\s*\(\s*(max-width|min-width)\s*\:\s*([^\(\)\{\}\s]+)\s*\)\s*and\s*\(\s*(max-width|min-width)\s*\:\s*([^\(\)\{\}\s]+)\s*\)\s*\{/", "@media($1:$2) and ($3:$4){", $source); //@media screen and (max-width: 479px){ $source = preg_replace("/\@media\s+screen\s+and\s*\(\s*(max-width|min-width)\s*\:\s*([^\(\)\{\}\s]+)\s*\)\s*\{/", "@media screen and ($1:$2){", $source); /* article, h2, div:first-child, .main{padding:0;} */ $source = preg_replace("/^([a-z0-9\_\.\-\:\>\s]+\,)\s+/im", "$1 ", $source); return $source; //$source = preg_replace_callback("/\s*\{((?:(?!content|\}).)+)\}\s*/", '\SpeedyCache\Enhanced::eliminate_newline_for_css'), $source); //return $source; } // Regex to replace new line after \n /\s*\;(?:\s*|\n)/ //Replaces Space before and after { } ; : static function eliminate_newline_for_css($matches){ $matches[0] = preg_replace("/\s+/", " ", ((string) $matches[0])); $matches[0] = preg_replace("/\s*{\s*/", "{", $matches[0]); $matches[0] = preg_replace("/\s*}\s*/", "}", $matches[0]); $matches[0] = preg_replace("/\s*\;\s*/", ";", $matches[0]); $matches[0] = preg_replace("/\s*\:\s*/", ":", $matches[0]); return $matches[0]."\n"; } static function render_blocking($html, $render_blocking_css = false){ \SpeedyCache\RenderBlocking::init($html); return \SpeedyCache\RenderBlocking::action($render_blocking_css); } static function google_fonts(){ //for checking } static function lazy_load($content){ global $speedycache; \SpeedyCache\LazyLoad::init(); $funcs = array( '\SpeedyCache\LazyLoad::images', '\SpeedyCache\LazyLoad::iframe', '\SpeedyCache\LazyLoad::background', '\SpeedyCache\LazyLoad::video' ); foreach($funcs as $fn){ // if(!function_exists($fn)){ // continue; // } $fn_res = call_user_func_array($fn, array($content, $speedycache->enhanced['inline_scripts'])); if(empty($fn_res)){ continue; } $content = $fn_res; } return $content; } /* CSS Part Start */ /* Js Part Start */ // TODO:: not used anywhere static function single_line_js($source){ $source = preg_replace("/\n/", '', $source); return $source; } static function minify_js($source, $inline_js = false){ //$source = preg_replace("/\n\/\/.*/", "", $source); //$source = preg_replace("/\/\*.*?\*\//s", "", $source); if(preg_match("/dynamicgoogletags\.update\(\)/i", $source)){ $source = ""; return $source; } // if(preg_match("/]*>\s*\(function\(i,s,o,g,r,a,m\)\{i\[\'GoogleAnalyticsObject\'\]/i", $source)){ if(preg_match("/ga\(\'send\',\s*\'pageview\'\)\;\s*<\/script>/i", $source)){ $source = preg_replace("/\s+/", " ", ((string) $source)); $source = preg_replace("/\s*<(\/?)script([^\>]*)>\s*/", "<$1script$2>", $source); return $source; } } // sometimes the lines are ended with "\r" instead of "\n" $source = str_replace("\r", "\n", $source); $source = preg_replace("/^\s+/m", '', $source); if(empty($inline_js)){ // // --> in html //$source = preg_replace("/\n\/\/[^\n]+/", "", $source); // to remove single line comments $source = preg_replace_callback("/\n\/\/[^\n]+/", '\SpeedyCache\Enhanced::remove_single_line_comments_from_js', $source); } if(!empty($inline_js)){ if(preg_match("/var\sptsTables/i", $source) && preg_match("/var\sptsBuildConst/i", $source)){ } //to remove only CDATA from inline js $source = preg_replace("/\/\*\s*\<\!\[CDATA\[\s*\*\//", "", $source); $source = preg_replace("/\/\*\s*\]\]\>\s*\*\//", "", $source); } // if(preg_match("/]*>\s*\/\/[^\n]*<\/script>/i", $source)){ return ''; } $source = preg_replace_callback("/([a-z]{4,5}\:)?\/\/[^\n]*/", '\SpeedyCache\Enhanced::remove_single_line_comments_from_js', $source); $source = preg_replace("/\}\)\;[^\S\r\n]+/", "});", $source); $source = preg_replace("/^\s+/m", "", $source); $source = preg_replace("/\s*(\!|\=)(\={1,3})\s*/", "$1$2", $source); // to remove spaces at the end of the line $source = preg_replace("/(\D)[^\S\r\n]+\n/", "$1\n", $source); $source = preg_replace("/([^\[\.\?])[^\S\r\n]+\:[^\S\r\n]+([^\]\.\?])/", "$1:$2", $source); $source = preg_replace("/([^\s\|])[^\S\r\n]*\&\&[^\S\r\n]*([^\s\|])/", "$1&&$2", $source); $source = preg_replace("/([^\s\&])[^\S\r\n]*\|\|[^\S\r\n]*([^\s\&])/", "$1||$2", $source); // @media all and (width), maybe later we can do preg_replace_callback() //b.match(/^(

\<]*)>\s*/i", "", $source); $source = preg_replace("/\s*<\/script>/i", "", $source); // .name( something) $source = preg_replace("/(\.[A-Za-z\_]+\()\s{1,2}/", "$1", $source); // Muli-Line Comments Start $source = preg_replace_callback("/\/\*(.*?)\*\//s", '\SpeedyCache\Enhanced::remove_multi_line_comments_from_js', $source); // END $source = str_replace("\xEF\xBB\xBF", '', $source); $source = preg_replace("/^\s+/m", '', $source); // if(!empty($inline_js)){ if(preg_match("/]*><\!--/i", $source)){ if(!preg_match("/-->/i", $source)){ $source = preg_replace("/(]*>)<\!--\n/i", "$1", $source); } } } return $source; } static function minify_inline_js($data){ global $speedycache; $script_list = array(); $script_start_index = false; for($i = 0; $i < strlen( $data ); $i++){ if(isset($data[$i - 6])){ if(substr($data, $i - 6, 7) == ''){ array_push($script_list, array('start' => $script_start_index, 'end' => $i)); $script_start_index = false; } } } } if(!empty($script_list)){ foreach(array_reverse($script_list) as $key => $value){ $inline_script = substr($data, $value['start'], ($value['end'] - $value['start'] + 1)); if(preg_match("/google\_ad\_slot/i", $inline_script)){ $speedycache->enhanced['inline_scripts'] = $speedycache->enhanced['inline_scripts'].$inline_script; continue; } if(preg_match("/]+src=[\'\"][^\>]+>/i", $inline_script)){ continue; } if(preg_match("/]+text\/template[^\>]+>/i", $inline_script)){ continue; } $speedycache->enhanced['inline_scripts'] = $speedycache->enhanced['inline_scripts'].$inline_script; $inline_script = \SpeedyCache\Enhanced::minify_js($inline_script, true); $inline_script = str_replace(' type="text/javascript"', '', $inline_script); $inline_script = str_replace(' type="text/javascript"', '', $inline_script); $speedycache->enhanced['inline_scripts'] = $speedycache->enhanced['inline_scripts'].$inline_script; $data = substr_replace($data, $inline_script, $value['start'], ($value['end'] - $value['start'] + 1)); } } return $data; } static function remove_multi_line_comments_from_js($matches){ //segs.unshift('//*[@id="' + elm.getAttribute('id') + '"]'); if(preg_match("/\/\*\[\@/", $matches[0])){ return $matches[0]; } if(preg_match("/\/\*\@cc_on/i", $matches[0])){ return $matches[0]; } if(preg_match("/\.exec\(|\.test\(|\.match\(|\.search\(|\.replace\(|\.split/", $matches[0])){ return $matches[0]; } if(preg_match("/function\(/", $matches[0])){ return $matches[0]; } //c("unmatched `/*`"); if(preg_match("/^\/\*\`\"\)\;/", $matches[0])){ return $matches[0]; } // if(preg_match("/\\/script>/", $matches[0]) && preg_match("/\*\\//", $matches[0])){ return $matches[0]; } // {comment:{pattern:/^([ \t]*)\/[\/*].*(?:(?:\r?\n|\r)\1[ \t]+.+)*/m,lookbehind:!0}} if(preg_match("/\.\+\)\*\//", $matches[0])){ return $matches[0]; } // var sourceURL = '\n/*\n//# sourceURL=' + (options.sourceURL || '/lodash/template/source[' + (templateCounter++) + ']') + '\n*/'; if(preg_match("/\/\*\\\\n\/\/\#\s+sourceURL/i", $matches[0])){ return $matches[0]; } // function(e){return"/*# sourceURL=".concat(r.sourceRoot).concat(e," */") if(preg_match("/\/\*\#\s+sourceURL/i", $matches[0])){ return $matches[0]; } // /*# sourceMappingURL=data:application/json;base64,".concat(btoa(unescape(encodeURIComponent(JSON.stringify(o))))," */ if(preg_match("/\/\*\#\s+sourceMappingURL/i", $matches[0])){ return $matches[0]; } // var COMMON_HEADERS = {'Accept': 'application/json, text/plain, */*'}; if(preg_match("/\/\*\'\}\;/", $matches[0])){ return $matches[0]; } return ''; } static function remove_single_line_comments_from_js($matches){ if(preg_match("/\n\/\/[^\n]+/", $matches[0])){ // // */ if(preg_match("/\/\/\s*\*\//", $matches[0])){ return $matches[0]; } return ''; } // // something */ if(preg_match("/\/\/[^\n\t]*\*\//", $matches[0])){ return $matches[0]; } // var url = {"name" : "something", // "url" : '//$1/p/$2/media/?size=l' // }; if(preg_match("/\'\h*$/", $matches[0])){ if(substr_count($matches[0], "'") == 1){ return $matches[0]; } } // ia=/^\.\//;x=Object.prototype;var K=x.toString, if(preg_match("/^\/\/\;/", $matches[0])){ return $matches[0]; } // var snd = new Audio("data:audio/wav;base64,//uQRAAAAWMSLwUIYAAsYkXgoQw3kuZGUAAAAAAAAAACU="); if(preg_match("/^\/\/[A-Za-z0-9\+\/\=]+[\'\"]\)\;/", $matches[0])){ return $matches[0]; } // "data:audio/wave;base64,/UklGRiYAAABXQVZFZm10IBAAAAABAAEARKwAAIhYAQACABAAZGF0YQIAAAD//w==":"about:blank", if(preg_match("/^\/\/w\=\=\"/", $matches[0])){ return $matches[0]; } // var div = {"background-image":"url(data:image/png;base64,wD/AP+gvatMW2UYx//POaRK5CYII=)"}; if(preg_match("/^\/\/[A-Za-z0-9\+\/\=]+\)[\'\"]\}/", $matches[0])){ return $matches[0]; } // base64 if(preg_match("/^\/\/[A-Za-z0-9\+\/\=]{150}/", $matches[0])){ return $matches[0]; } // var a = ''; if(preg_match("/^cript\:\/\/\"/", $matches[0])){ return $matches[0]; } // url.replace( /^http:\/\//i, 'https://' ); //domain = domain.replace(new RegExp(/^http\:\/\/|^https\:\/\/|^ftp\:\/\//i),""); if(preg_match("/^\/\/i(\,|\))/", $matches[0])){ return $matches[0]; } // {pattern:/\/\*[\*!][\s\S]*?\*\//gm,alias:"co2"} // d=b?/[&<>"'\/]/g:/&(?!#?\w+;)|<|>|"|'|\//g; // replace(/\//g,"") // e.match(/^https?:\/\//g) if(preg_match("/^\/\/gm?(\,|\)|\;)/", $matches[0])){ return $matches[0]; } // match(/^https?:\/\//) // var pattern = RegExp("^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?"); if(preg_match("/^\/\/(\)|\()/", $matches[0])){ return $matches[0]; } //src="//about:blank" frameborder="0" allowfullscreen>'+ if(preg_match("/^\/\/about\:blank/", $matches[0])){ return $matches[0]; } //""; if(preg_match("/^\/\/www\'/", $matches[0])){ return $matches[0]; } // if(URL.match( /^https?:\/\// ) ){ if(preg_match("/^\/\/\s*\)\s*\)\s*\{/", $matches[0])){ return $matches[0]; } // "string".replace(/\//,3); if(preg_match("/^\/\/\s*\,/", $matches[0])){ return $matches[0]; } // src = src.replace('https?://[^./].',''); if(preg_match("/^\/\/\[[^\]\[]+\]/", $matches[0])){ return $matches[0]; } // comments: /\/\*[^*]*\*+([^/][^*]*\*+)*\//gi, if(preg_match("/^\/\/\s*gi\s*\,/", $matches[0])){ return $matches[0]; } // var proto = document.location.protocol, host = "whatshelp.io", url = proto + "//static." + host; if(preg_match("/^\/\/static\./i", $matches[0])){ return $matches[0]; } // whatsapp://send?text= // NOTE: preg_match_replace gets only 5 chars so we check "tsapp://" instead of "whatsapp://" if(preg_match("/^tsapp\:\/\/send/", $matches[0])){ return $matches[0]; } // sms://?&body="+postTitle+" "+postUrl if(preg_match("/^\/\/\?\&/", $matches[0])){ return $matches[0]; } // viber://forward?text="+postTitle+" "+postUrl if(preg_match("/^viber\:\/\//", $matches[0])){ return $matches[0]; } //threema://compose?text="+postTitle+" "+postUrl if(preg_match("/^reema\:\/\//", $matches[0])){ return $matches[0]; } // weixin:// if(preg_match("/^eixin\:\/\//", $matches[0])){ return $matches[0]; } // fb-messenger://share? if(preg_match("/^enger\:\/\//", $matches[0])){ return $matches[0]; } // rtmp://37.77.2.234:1935/redirect/live.flv if(preg_match("/^rtmp\:\/\//", $matches[0])){ return $matches[0]; } // comgooglemaps://?q=40.956572,29.0859053&directionsmode=driving if(preg_match("/^emaps\:\/\//", $matches[0])){ return $matches[0]; } // javascript:// if(preg_match("/^cript\:\/\//", $matches[0])){ return $matches[0]; } // jsFileLocation:"//29.59.155.173/~cfo/site-data/plugins/revslider/public/assets/js/", if(preg_match("/^\/\/([0-9]{1,3}\.){3}[0-9]{1,3}\/\~/", $matches[0])){ return $matches[0]; } // var url = /[-a-zA-Z0-9@:%_\+.~#?&//=]{2,256}\.[a-z]{2,4}\b(\/[-a-zA-Z0-9@:%_\+.~#?&//=]*)?/gi; if(preg_match("/\/\/\=\]/", $matches[0])){ return $matches[0]; } if(preg_match("/^maps\:\/\//", $matches[0])){ return $matches[0]; } // "line://msg/text/" + postTitle + "! " + postUrl if(preg_match("/^line\:\/\//", $matches[0])){ return $matches[0]; } // document.write(''); if(preg_match("/^\/\/\:\"/", $matches[0])){ return $matches[0]; } // url: "//$1/p/$2/media/?size=l" if(preg_match("/^\/\/\\$/", $matches[0])){ return $matches[0]; } if(preg_match("/^\/\/\//", $matches[0])){ return $matches[0]; } if(preg_match("/^http/", $matches[0])){ return $matches[0]; } // var xxx={"case":"\nhttp://www.google.com"}; if(preg_match("/^nhttp/", $matches[0])){ return $matches[0]; } // var currUrl = 'file://' + "something"; if(preg_match("/^file\:\/\//i", $matches[0])){ return $matches[0]; } // if(preg_match("/cript\:\/\/nop/i", $matches[0])){ return $matches[0]; } // Flash.RTMP_RE = /^rtmp[set]?:\/\//i; if(preg_match("/^\/\/i\;/", $matches[0])){ return $matches[0]; } //segs.unshift('//*[@id="' + elm.getAttribute('id') + '"]'); if(preg_match("/^\/\/\*\[/", $matches[0])){ return $matches[0]; } // e.write('') if(preg_match("/^\/\/W3C\/\/DTD\s+XHTML/i", $matches[0])){ return $matches[0]; } // var sourceURL = '\n/*\n//# sourceURL=' + (options.sourceURL || '/lodash/template/source[' + (templateCounter++) + ']') + '\n*/'; // var xxx = "} catch (e){ throw 'TemplateError: ' + e + ' (on " + name + "' + ' line ' + this.line + ')'; } " + "//@ sourceURL=" + name + "\n" // source map if(preg_match("/^\/\/(\#|\@)\s+sourceURL/i", $matches[0])){ return $matches[0]; } // options.tileLayerThem = '//{s}.tile.openstreetmap.org/{z}/{x}/{y}.png'; if(preg_match("/^\/\/\{[^\}]+\}\./", $matches[0])){ return $matches[0]; } // document.write("<"+"script defer src=\"//:\" id=\"__onload_ie_pixastic__\">"); if(preg_match("/^\/\/\:\\\\(\"|\')/", $matches[0])){ return $matches[0]; } // a.src='//cdn.'+w[r+'h']+'/libs/b.js'; if(preg_match("/^\/\/cdn\./", $matches[0])){ return $matches[0]; } //\x3c/script> if(preg_match("/x3c\/script>/i", $matches[0])){ return $matches[0]; } return ''; } if(preg_match("/<\/script>/", $matches[0])){ return preg_replace("/\/\/[^\<]+<\/script>/", '', $matches[0]); } return ''; } static function minify_js_in_body($exclude_rules = false){ global $speedycache; $data = $speedycache->enhanced['html']; $script_list = array(); $script_start_index = false; for($i = 0; $i < strlen( $data ); $i++){ if(isset($data[$i - 6])){ if(substr($data, $i - 6, 7) == ''){ array_push($script_list, array('start' => $script_start_index, 'end' => $i)); $script_start_index = false; } } } if(empty($script_list)){ return $speedycache->enhanced['html']; } foreach(array_reverse($script_list) as $key => $value){ $script_tag = substr($data, $value['start'], ($value['end'] - $value['start'] + 1)); if(!preg_match("/^\<]+src\=[^\>\<]+>/i", $script_tag) && preg_match("/\/speedycache\-assets\//i", $script_tag)){ continue; } preg_match("/src\=[\"\']([^\'\"]+)[\"\']/i", $script_tag, $src); $http_host = str_replace(array('http://', 'www.'), '', sanitize_text_field($_SERVER['HTTP_HOST'])); if(!isset($src[1])){ continue; } if(!preg_match('/'.preg_quote($http_host, '/').'/i', $src[1])){ continue; } if(!empty($exclude_rules)){ $is_excluded = false; foreach((array)$exclude_rules as $exclude_key => $exclude_value){ if(!empty($exclude_value['prefix']) && $exclude_value['type'] === 'js'){ if($exclude_value['prefix'] === 'contain'){ $preg_match_rule = preg_quote($exclude_value['content'], '/'); } if(preg_match('/'.$preg_match_rule.'/i', $src[1])){ $is_excluded = true; break; } } } if(!empty($is_excluded)){ continue; } } // Skip if the file is already minified. if(strpos($src[1], '.min.') !== FALSE){ continue; } if(preg_match("/alexa\.com\/site\_stats/i", $src[1])){ continue; } if(preg_match("/wp-spamshield\/js\/jscripts\.php/i", $src[1])){ continue; } //amazonjs/components/js/jquery-tmpl/jquery.tmpl.min.js?ver=1.0.0pre if(preg_match("/jquery-tmpl\/jquery\.tmpl\.min\.js/i", $src[1])){ continue; } // if(preg_match("/[\?\=].*".preg_quote($http_host, '/').'/i', $src[1])){ continue; } $js_file_name = md5($src[1]); $cache_file_path = WP_CONTENT_DIR.'/'.$speedycache->enhanced['cache_speedycache_minified'].'/'.$js_file_name; if(!defined('SPEEDYCACHE_WP_CONTENT_URL')){ $js_script = content_url().'/'.$speedycache->enhanced['cache_speedycache_minified'].'/'.$js_file_name; }else{ $js_script = SPEEDYCACHE_WP_CONTENT_URL.'/'.$speedycache->enhanced['cache_speedycache_minified'].'/'.$js_file_name; } $js_script = str_replace(array('http://', 'https://'), '//', $js_script); $args = array( 'src' => $src[1], 'cache_file_path' => $cache_file_path, 'js_script' => $js_script, 'script_tag' => $script_tag, 'value' => $value ); self::fetch_and_minify_js($args); } return $speedycache->enhanced['html']; } static function fetch_and_minify_js($args){ global $speedycache; $response = wp_remote_get(\SpeedyCache\Enhanced::fix_protocol($args['src']), array('timeout' => 10 ) ); if(empty($response) || is_wp_error($response)){ return false; } if(wp_remote_retrieve_response_code($response) != 200){ return false; } $js_content = wp_remote_retrieve_body($response); if(preg_match('/<\/\s*html\s*>\s*$/i', $js_content)){ return false; } $minified_js_content = \SpeedyCache\Enhanced::minify_js($js_content); if(!is_dir($args['cache_file_path'])){ $prefix = time(); \SpeedyCache\Cache::create_dir($args['cache_file_path'], $minified_js_content, 'js'); } if(file_exists($args['cache_file_path']) && $js_files = @scandir($args['cache_file_path'], 1)){ $new_script = str_replace($args['src'], $args['js_script'].'/'.$js_files[0], $args['script_tag']); $speedycache->enhanced['html'] = substr_replace($speedycache->enhanced['html'], $new_script, $args['value']['start'], ($args['value']['end'] - $args['value']['start'] + 1)); } } static function combine_js_in_footer($minify = false){ global $speedycache; $footer = strstr($speedycache->enhanced['html'], ''); \SpeedyCache\JS::init($footer, $minify); $tmp_footer = \SpeedyCache\JS::combine(); if(!empty($speedycache->options['render_blocking'])){ \SpeedyCache\RenderBlocking::init($tmp_footer); $tmp_footer = \SpeedyCache\RenderBlocking::action(false, true); } $speedycache->enhanced['html'] = str_replace($footer, $tmp_footer, $speedycache->enhanced['html']); return $speedycache->enhanced['html']; } /* Js Part End */ static function fix_protocol($url){ if(!preg_match('/^\/\//', $url)){ return $url; } if(preg_match('/^https:\/\//', home_url())){ return 'https:'.$url; } return 'http:'.$url; } static function set_html($html){ global $speedycache; $speedycache->enhanced['html'] = $html; self::set_head_html(); self::set_body_html(); } static function set_body_html(){ global $speedycache; preg_match("//si", $speedycache->enhanced['html'], $out); if(isset($out[0])){ $speedycache->enhanced['body_html'] = $out[0]; return; } $speedycache->enhanced['body_html'] = ''; } static function set_head_html(){ global $speedycache; preg_match("//si", $speedycache->enhanced['html'], $out); if(isset($out[0])){ $speedycache->enhanced['head_html'] = $out[0]; return; } $speedycache->enhanced['head_html'] = ''; } static function delay_js($content){ global $speedycache; // If Delay js mode is selected and the scripts are empty then return if(empty($speedycache->options['delay_js_mode']) || (!empty($speedycache->options['delay_js_mode']) && $speedycache->options['delay_js_mode'] == 'selected' && empty($speedycache->options['delay_js_scripts']))){ return $content; } $scripts = self::find_tags('', $content); if(empty($scripts)){ return $content; } foreach($scripts as $tag => $script){ // Dont process a tag without src $is_inline = false; if(strpos($script['text'], ' src') === FALSE){ $is_inline = true; } // We dont want to delay structured data if(strpos($script['text'], 'application/ld+json') !== FALSE){ continue; } if(strpos($script['text'], 'text/template') !== FALSE){ continue; } // Don't delay a module. if(strpos($script['text'], 'type="module"') !== FALSE){ continue; } // Don't touch any import maps as they are meant to be loaded early. if(strpos($script['text'], 'importmap') !== FALSE){ continue; } // We dont want to delay jQuery if(preg_match('/jquery\./U', $script['text'], $match)){ continue; } // Excluding Scripts if($speedycache->options['delay_js_mode'] == 'all' && !empty($speedycache->options['delay_js_excludes'])){ foreach($speedycache->options['delay_js_excludes'] as $to_delay){ if(empty($to_delay)){ continue; } if(strpos($script['text'], trim($to_delay)) !== FALSE){ continue 2; } } } // Delay Selected Scripts if($speedycache->options['delay_js_mode'] == 'selected' && !empty($speedycache->options['delay_js_scripts'])){ $script_found = false; foreach($speedycache->options['delay_js_scripts'] as $to_delay){ if(empty($to_delay)){ continue; } if(strpos($script['text'], trim($to_delay)) !== FALSE){ $script_found = true; break; } } if(empty($script_found)){ continue; } } $new_tag = self::updating_tag($script['text'], $is_inline); if(!empty($new_tag)){ $content = str_replace($script['text'], $new_tag, $content); } } // Adds the script which loads the JS files on user interaction self::inject_js($content); return $content; } static function updating_tag($tag, $is_inline){ global $speedycache; if(preg_match('/src=["\'](.*)["\']/U', $tag, $src)){ return ''; } if($is_inline){ // taking out the attributes preg_match_all('/]+)?>/i', $tag, $matches); $attributes = []; // Parsing the attributes if(!empty($matches)){ foreach($matches[1] as $attr_str){ preg_match_all('/(\w+)(?:=["\']([^"\']*)["\'])?/i', trim($attr_str), $attrs, PREG_SET_ORDER); foreach($attrs as $attr){ $attributes[$attr[1]] = $attr[2] ?? true; } } } // Adding our delayjs type $attributes['type'] = 'speedycache/javascript'; // Rebulding the attributes $script_attr = ''; foreach($attributes as $name => $value){ $script_attr .= ' ' . esc_attr($name).'="'.esc_attr($value).'"'; } return preg_replace('/]+)?>/i', '', $tag); } } static function inject_js(&$content){ $js = file_get_contents(SPEEDYCACHE_PRO_DIR . '/assets/js/delayjs.min.js'); $js = ''; $content = str_replace('', $js . "\n", $content); } static function find_tags($start_string, $end_string, $html = false){ global $speedycache; if(!empty($html)){ $data = $html; } $list = array(); $start_index = false; $end_index = false; for($i = 0; $i < strlen($data); $i++){ if(substr($data, $i, strlen($start_string)) == $start_string){ if(!$start_index && !$end_index){ $start_index = $i; } } if(empty($start_index) || $i < $start_index){ continue; } if(substr($data, $i, strlen($end_string)) !== $end_string){ continue; } $end_index = $i + strlen($end_string) - 1; $text = substr($data, $start_index, ($end_index - $start_index + 1)); if($html === false){ $tag = self::get_tags($start_index, $text, $end_index); if($tag !== FALSE){ array_push($list, $tag); } }else{ array_push($list, array('start' => $start_index, 'end' => $end_index, 'text' => $text)); } $start_index = false; $end_index = false; } return $list; } // Adds Image dimensions to the images where height and width is not present // It helps in reducing the Cumulative Layout shift(CLS) as the browser knows how much space to allocate for the image. static function image_dimensions($content){ if(!function_exists('getimagesize')){ return $content; } // Get Images without height and width $images_regex = '](?!height=[\'\"](?:\S+)[\'\"]))*+>|](?!width=[\'\"](?:\S+)[\'\"]))*+>'; preg_match_all('/'.$images_regex.'/Uis', $content, $image_matches); if(empty($image_matches)){ return $content; } $images = $image_matches[0]; $site_url = site_url(); foreach($images as $image){ // Get the SRC if(!preg_match( '/\s+src\s*=\s*[\'"](?[^\'"]+)/i', $image, $src_match)){ continue; } $url = $src_match['url']; // We will proccess image which is uploaded inside wp-content if(strpos($url, 'wp-content') === FALSE || strpos($url, '.svg') !== FALSE || strpos($url, $site_url) === FALSE){ continue; } $url = str_replace($site_url, '', $url); $image_path = str_replace('/wp-content', '', WP_CONTENT_DIR) . $url; if(!file_exists($image_path)){ continue; } $sizes = getimagesize($image_path); if(empty($sizes)){ continue; } preg_match('/[^\'\"\s]+)[\'\"]?.*>/i', $image, $initial_height); preg_match('/[^\'\"\s]+)[\'\"]?.*>/i', $image, $initial_width); $dimensions_attr = ''; if(empty($initial_height['height']) && empty($initial_width['width'])){ $dimensions_attr = $sizes[3]; } if(!empty($initial_height['height']) && empty($dimensions_attr)){ if(!is_numeric($initial_height['height'])){ continue; } $ratio = $initial_height['height'] / $sizes[1]; $dimensions_attr = 'width="' . (int) round($sizes[0] * $ratio) . '" height="' . $initial_height['height'] . '"'; } if(!empty($initial_width['width']) && empty($dimensions_attr)){ if(!is_numeric( $initial_width['width'])){ continue; } $ratio = $initial_width['width'] / $sizes[0]; $dimensions_attr = 'width="' . $initial_width['width'] . '" height="' . (int) round($sizes[1] * $ratio) . '"'; } $changed_image = preg_replace('/\s(height|width)=(?:[\'"]?(?:[^\'\"\s]+)*[\'"]?)?/i', '', $image); $changed_image = preg_replace('/<\s*img/i', '', '', $content); return $content; } static function preload_critical_images($content){ global $speedycache; preg_match_all('#(]+?)\/?>(?><\/picture>)?#is', $content, $images, PREG_SET_ORDER); if(empty($images)){ return $content; } $count = 0; $preload_tags = ''; foreach($images as $image){ // Break once the Critical Image Count is reached. if($count >= $speedycache->options['critical_image_count']){ break; } if(strpos($image[0], 'secure.gravatar.com') !== FALSE){ continue; } // NOTE:: Will remove this in future, firt we will just support tag if(strpos($image[0], '') !== FALSE){ continue; } // Excluding base64 image from preloading. if(strpos($image[0], ';base64') !== FALSE){ continue; } $atts_array = wp_kses_hair($image[2], wp_allowed_protocols()); $atts = []; foreach($atts_array as $name => $attr){ $atts[$name] = $attr['value']; } if(empty($atts['src'])){ continue; } // To preload unique images. if(strpos($preload_tags, $atts['src']) === FALSE){ $preload_tags .= ''; } $count++; } if(empty($preload_tags)){ return $content; } // If title tag is not there then don't add the preload. if(strpos($content, '') === FALSE){ return $content; } $content = str_replace('', '' . $preload_tags, $content); return $content; } static function pre_connect_hint($urls, $relation_type){ global $speedycache; if($relation_type !== 'preconnect'){ return $urls; } foreach($speedycache->options['pre_connect_list'] as $url) { if(empty($url) || empty($url['resource'])){ continue; } $preconnect = array('href' => $url['resource']); if(!empty($url['crossorigin'])){ $preconnect['crossorigin'] = 'crossorigin'; } $urls[] = $preconnect; } return $urls; } static function preload_resource(){ global $speedycache; if(empty($speedycache->options['preload_resource_list']) || !is_array($speedycache->options['preload_resource_list'])){ return; } foreach($speedycache->options['preload_resource_list'] as $preload_resource){ if(empty($preload_resource['resource']) || empty($preload_resource['type'])){ continue; } $crossorigin = ''; if(!empty($preload_resource['crossorigin'])){ $crossorigin = 'crossorigin'; } echo ''; } } }