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<?php |
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if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly |
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|
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abstract class autoptimizeBase { |
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protected $content = ''; |
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protected $tagWarning = false; |
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|
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public function __construct($content) { |
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$this->content = $content; |
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} |
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|
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//Reads the page and collects tags |
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abstract public function read($justhead); |
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|
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//Joins and optimizes collected things |
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abstract public function minify(); |
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|
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//Caches the things |
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abstract public function cache(); |
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|
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//Returns the content |
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abstract public function getcontent(); |
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|
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//Converts an URL to a full path |
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protected function getpath($url) { |
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$url=apply_filters( 'autoptimize_filter_cssjs_alter_url', $url); |
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|
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if (strpos($url,'%')!==false) { |
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$url=urldecode($url); |
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} |
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|
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$siteHost=parse_url(AUTOPTIMIZE_WP_SITE_URL,PHP_URL_HOST); |
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|
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// normalize |
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if (strpos($url,'//')===0) { |
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if (is_ssl()) { |
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$url = "https:".$url; |
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} else { |
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$url = "http:".$url; |
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} |
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} else if ((strpos($url,'//')===false) && (strpos($url,$siteHost)===false)) { |
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if (AUTOPTIMIZE_WP_SITE_URL === $siteHost) { |
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$url = AUTOPTIMIZE_WP_SITE_URL.$url; |
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} else { |
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$subdir_levels=substr_count(preg_replace("/https?:\/\//","",AUTOPTIMIZE_WP_SITE_URL),"/"); |
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$url = AUTOPTIMIZE_WP_SITE_URL.str_repeat("/..",$subdir_levels).$url; |
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} |
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} |
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|
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// first check; hostname wp site should be hostname of url |
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$thisHost=@parse_url($url,PHP_URL_HOST); |
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if ($thisHost !== $siteHost) { |
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/* |
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* first try to get all domains from WPML (if available) |
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* then explicitely declare $this->cdn_url as OK as well |
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* then apply own filter autoptimize_filter_cssjs_multidomain takes an array of hostnames |
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* each item in that array will be considered part of the same WP multisite installation |
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*/ |
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$multidomains = array(); |
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|
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$multidomainsWPML = apply_filters('wpml_setting', array(), 'language_domains'); |
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if (!empty($multidomainsWPML)) { |
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$multidomains = array_map(array($this,"ao_getDomain"),$multidomainsWPML); |
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} |
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|
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if (!empty($this->cdn_url)) { |
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$multidomains[]=parse_url($this->cdn_url,PHP_URL_HOST); |
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} |
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|
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$multidomains = apply_filters('autoptimize_filter_cssjs_multidomain', $multidomains); |
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|
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if (!empty($multidomains)) { |
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if (in_array($thisHost,$multidomains)) { |
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$url=str_replace($thisHost, parse_url(AUTOPTIMIZE_WP_SITE_URL,PHP_URL_HOST), $url); |
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} else { |
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return false; |
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} |
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} else { |
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return false; |
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} |
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} |
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|
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// try to remove "wp root url" from url while not minding http<>https |
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$tmp_ao_root = preg_replace('/https?:/','',AUTOPTIMIZE_WP_ROOT_URL); |
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$tmp_url = preg_replace('/https?:/','',$url); |
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$path = str_replace($tmp_ao_root,'',$tmp_url); |
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|
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// final check; if path starts with :// or //, this is not a URL in the WP context and we have to assume we can't aggregate |
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if (preg_match('#^:?//#',$path)) { |
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/** External script/css (adsense, etc) */ |
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return false; |
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} |
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|
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$path = str_replace('//','/',WP_ROOT_DIR.$path); |
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return $path; |
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} |
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|
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// needed for WPML-filter |
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protected function ao_getDomain($in) { |
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// make sure the url starts with something vaguely resembling a protocol |
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if ((strpos($in,"http")!==0) && (strpos($in,"//")!==0)) { |
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$in="http://".$in; |
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} |
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|
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// do the actual parse_url |
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$out = parse_url($in,PHP_URL_HOST); |
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|
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// fallback if parse_url does not understand the url is in fact a url |
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if (empty($out)) $out=$in; |
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|
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return $out; |
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} |
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|
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|
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// logger |
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protected function ao_logger($logmsg,$appendHTML=true) { |
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if ($appendHTML) { |
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$logmsg="<!--noptimize--><!-- ".$logmsg." --><!--/noptimize-->"; |
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$this->content.=$logmsg; |
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} else { |
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error_log("Autoptimize: ".$logmsg); |
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} |
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} |
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|
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// hide everything between noptimize-comment tags |
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protected function hide_noptimize($noptimize_in) { |
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if ( preg_match( '/<!--\s?noptimize\s?-->/', $noptimize_in ) ) { |
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$noptimize_out = preg_replace_callback( |
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'#<!--\s?noptimize\s?-->.*?<!--\s?/\s?noptimize\s?-->#is', |
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create_function( |
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'$matches', |
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'return "%%NOPTIMIZE".AUTOPTIMIZE_HASH."%%".base64_encode($matches[0])."%%NOPTIMIZE%%";' |
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), |
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$noptimize_in |
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); |
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} else { |
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$noptimize_out = $noptimize_in; |
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} |
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return $noptimize_out; |
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} |
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|
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// unhide noptimize-tags |
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protected function restore_noptimize($noptimize_in) { |
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if ( strpos( $noptimize_in, '%%NOPTIMIZE%%' ) !== false ) { |
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$noptimize_out = preg_replace_callback( |
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'#%%NOPTIMIZE'.AUTOPTIMIZE_HASH.'%%(.*?)%%NOPTIMIZE%%#is', |
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create_function( |
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'$matches', |
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'return base64_decode($matches[1]);' |
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), |
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$noptimize_in |
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); |
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} else { |
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$noptimize_out = $noptimize_in; |
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} |
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return $noptimize_out; |
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} |
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|
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protected function hide_iehacks($iehacks_in) { |
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if ( strpos( $iehacks_in, '<!--[if' ) !== false ) { |
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$iehacks_out = preg_replace_callback( |
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'#<!--\[if.*?\[endif\]-->#is', |
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create_function( |
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'$matches', |
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'return "%%IEHACK".AUTOPTIMIZE_HASH."%%".base64_encode($matches[0])."%%IEHACK%%";' |
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), |
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$iehacks_in |
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); |
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} else { |
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$iehacks_out = $iehacks_in; |
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} |
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return $iehacks_out; |
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} |
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|
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protected function restore_iehacks($iehacks_in) { |
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if ( strpos( $iehacks_in, '%%IEHACK%%' ) !== false ) { |
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$iehacks_out = preg_replace_callback( |
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'#%%IEHACK'.AUTOPTIMIZE_HASH.'%%(.*?)%%IEHACK%%#is', |
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create_function( |
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'$matches', |
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'return base64_decode($matches[1]);' |
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), |
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$iehacks_in |
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); |
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} else { |
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$iehacks_out=$iehacks_in; |
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} |
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return $iehacks_out; |
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} |
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|
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protected function hide_comments($comments_in) { |
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if ( strpos( $comments_in, '<!--' ) !== false ) { |
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$comments_out = preg_replace_callback( |
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'#<!--.*?-->#is', |
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create_function( |
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'$matches', |
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'return "%%COMMENTS".AUTOPTIMIZE_HASH."%%".base64_encode($matches[0])."%%COMMENTS%%";' |
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), |
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$comments_in |
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); |
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} else { |
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$comments_out = $comments_in; |
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} |
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return $comments_out; |
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} |
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|
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protected function restore_comments($comments_in) { |
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if ( strpos( $comments_in, '%%COMMENTS%%' ) !== false ) { |
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$comments_out = preg_replace_callback( |
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'#%%COMMENTS'.AUTOPTIMIZE_HASH.'%%(.*?)%%COMMENTS%%#is', |
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create_function( |
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'$matches', |
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'return base64_decode($matches[1]);' |
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), |
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$comments_in |
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); |
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} else { |
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$comments_out=$comments_in; |
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} |
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return $comments_out; |
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} |
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|
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protected function url_replace_cdn( $url ) { |
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// API filter to change base CDN URL |
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$cdn_url = apply_filters( 'autoptimize_filter_base_cdnurl', $this->cdn_url ); |
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|
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if ( !empty($cdn_url) ) { |
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// prepend domain-less absolute URL's |
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if ( ( substr( $url, 0, 1 ) === '/' ) && ( substr( $url, 1, 1 ) !== '/' ) ) { |
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$url = rtrim( $cdn_url, '/' ) . $url; |
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} else { |
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// get wordpress base URL |
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$WPSiteBreakdown = parse_url( AUTOPTIMIZE_WP_SITE_URL ); |
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$WPBaseUrl = $WPSiteBreakdown['scheme'] . '://' . $WPSiteBreakdown['host']; |
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if ( ! empty( $WPSiteBreakdown['port'] ) ) { |
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$WPBaseUrl .= ":" . $WPSiteBreakdown['port']; |
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} |
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// replace full url's with scheme |
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$tmp_url = str_replace( $WPBaseUrl, rtrim( $cdn_url, '/' ), $url ); |
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if ( $tmp_url === $url ) { |
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// last attempt; replace scheme-less URL's |
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$url = str_replace( preg_replace( '/https?:/', '', $WPBaseUrl ), rtrim( $cdn_url, '/' ), $url ); |
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} else { |
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$url = $tmp_url; |
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} |
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} |
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} |
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|
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// allow API filter to alter URL after CDN replacement |
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$url = apply_filters( 'autoptimize_filter_base_replace_cdn', $url ); |
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return $url; |
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} |
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|
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protected function inject_in_html($payload,$replaceTag) { |
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if (strpos($this->content,$replaceTag[0])!== false) { |
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if ($replaceTag[1]==="after") { |
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$replaceBlock=$replaceTag[0].$payload; |
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} else if ($replaceTag[1]==="replace"){ |
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$replaceBlock=$payload; |
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} else { |
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$replaceBlock=$payload.$replaceTag[0]; |
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} |
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$this->content = substr_replace($this->content,$replaceBlock,strpos($this->content,$replaceTag[0]),strlen($replaceTag[0])); |
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} else { |
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$this->content .= $payload; |
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if (!$this->tagWarning) { |
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$this->content .= "<!--noptimize--><!-- Autoptimize found a problem with the HTML in your Theme, tag \"".str_replace(array("<",">"),"",$replaceTag[0])."\" missing --><!--/noptimize-->"; |
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$this->tagWarning=true; |
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} |
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} |
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} |
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|
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protected function isremovable($tag, $removables) { |
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foreach ($removables as $match) { |
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if (strpos($tag,$match)!==false) { |
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return true; |
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} |
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} |
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return false; |
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} |
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|
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// inject already minified code in optimized JS/CSS |
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protected function inject_minified($in) { |
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if ( strpos( $in, '%%INJECTLATER%%' ) !== false ) { |
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$out = preg_replace_callback( |
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'#%%INJECTLATER'.AUTOPTIMIZE_HASH.'%%(.*?)%%INJECTLATER%%#is', |
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create_function( |
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'$matches', |
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'$filepath=base64_decode(strtok($matches[1],"|")); |
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$filecontent=file_get_contents($filepath); |
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|
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// remove BOM |
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$filecontent = preg_replace("#\x{EF}\x{BB}\x{BF}#","",$filecontent); |
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|
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// remove comments and blank lines |
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if (substr($filepath,-3,3)===".js") { |
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$filecontent=preg_replace("#^\s*\/\/.*$#Um","",$filecontent); |
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} |
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|
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$filecontent=preg_replace("#^\s*\/\*[^!].*\*\/\s?#Um","",$filecontent); |
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$filecontent=preg_replace("#(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+#", "\n", $filecontent); |
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|
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// specific stuff for JS-files |
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if (substr($filepath,-3,3)===".js") { |
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if ((substr($filecontent,-1,1)!==";")&&(substr($filecontent,-1,1)!=="}")) { |
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$filecontent.=";"; |
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} |
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|
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if (get_option("autoptimize_js_trycatch")==="on") { |
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$filecontent="try{".$filecontent."}catch(e){}"; |
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} |
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} else if ((substr($filepath,-4,4)===".css")) { |
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$filecontent=autoptimizeStyles::fixurls($filepath,$filecontent); |
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} else { |
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$filecontent=""; |
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} |
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|
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// return |
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return "\n".$filecontent;' |
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), |
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$in |
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); |
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} else { |
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$out = $in; |
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} |
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return $out; |
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} |
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} |
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|
