add wp-rocket
This commit is contained in:
nguyen dung
308
wp-content/plugins/wp-rocket/inc/deprecated/vendors/classes/class-minify-html.php
vendored
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308
wp-content/plugins/wp-rocket/inc/deprecated/vendors/classes/class-minify-html.php
vendored
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@@ -0,0 +1,308 @@
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<?php
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use WP_Rocket\deprecated\DeprecatedClassTrait;
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/**
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* Class Minify_HTML
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* @package Minify
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*/
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/**
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* Compress HTML
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*
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* This is a heavy regex-based removal of whitespace, unnecessary comments and
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* tokens. IE conditional comments are preserved. There are also options to have
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* STYLE and SCRIPT blocks compressed by callback functions.
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*
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* A test suite is available.
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*
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* @package Minify
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* @author Stephen Clay <steve@mrclay.org>
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*/
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class Minify_HTML
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{
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use DeprecatedClassTrait;
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/**
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* @var boolean
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*/
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protected $_jsCleanComments = true;
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/**
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* "Minify" an HTML page
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*
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* @param string $html
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*
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* @param array $options
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*
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* 'cssMinifier' : (optional) callback function to process content of STYLE
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* elements.
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*
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* 'jsMinifier' : (optional) callback function to process content of SCRIPT
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* elements. Note: the type attribute is ignored.
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*
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* 'xhtml' : (optional boolean) should content be treated as XHTML1.0? If
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* unset, minify will sniff for an XHTML doctype.
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*
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* @return string
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*/
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public static function minify($html, $options = array())
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{
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$min = new self($html, $options);
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return $min->process();
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}
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/**
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* Create a minifier object
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*
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* @param string $html
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*
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* @param array $options
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*
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* 'cssMinifier' : (optional) callback function to process content of STYLE
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* elements.
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*
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* 'jsMinifier' : (optional) callback function to process content of SCRIPT
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* elements. Note: the type attribute is ignored.
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*
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* 'jsCleanComments' : (optional) whether to remove HTML comments beginning and end of script block
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*
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* 'xhtml' : (optional boolean) should content be treated as XHTML1.0? If
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* unset, minify will sniff for an XHTML doctype.
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*/
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public function __construct($html, $options = array())
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{
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self::deprecated_class( '3.7' );
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$this->_html = str_replace("\r\n", "\n", trim($html));
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if (isset($options['xhtml'])) {
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$this->_isXhtml = (bool)$options['xhtml'];
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}
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if (isset($options['cssMinifier'])) {
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$this->_cssMinifier = $options['cssMinifier'];
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}
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if (isset($options['jsMinifier'])) {
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$this->_jsMinifier = $options['jsMinifier'];
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}
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if (isset($options['jsCleanComments'])) {
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$this->_jsCleanComments = (bool)$options['jsCleanComments'];
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}
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}
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/**
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* Minify the markeup given in the constructor
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*
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* @return string
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*/
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public function process()
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{
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if ($this->_isXhtml === null) {
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$this->_isXhtml = (false !== strpos($this->_html, '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML'));
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}
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$this->_replacementHash = 'MINIFYHTML' . md5($_SERVER['REQUEST_TIME']);
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$this->_placeholders = array();
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// replace SCRIPTs (and minify) with placeholders
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// preg_replace_callback - on errors the return is NULL
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// On big scripts PREG_BACKTRACK_LIMIT_ERROR is reached and causes the empty page
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$pregJs = preg_replace_callback(
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'/(\\s*)<script(\\b[^>]*?>)([\\s\\S]*?)<\\/script>(\\s*)/i'
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,array($this, '_removeScriptCB')
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,$this->_html);
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if ( isset($pregJs) && ! empty( $pregJs ) ) {
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$this->_html = $pregJs;
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}
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// replace STYLEs (and minify) with placeholders
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// preg_replace_callback - on errors the return is NULL
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// On big scripts PREG_BACKTRACK_LIMIT_ERROR is reached and causes the empty page
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$pregCSS = preg_replace_callback(
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'/\\s*<style(\\b[^>]*>)([\\s\\S]*?)<\\/style>\\s*/i'
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,array($this, '_removeStyleCB')
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,$this->_html);
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if ( isset( $pregCSS ) && ! empty( $pregCSS ) ) {
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$this->_html = $pregCSS;
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}
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// remove HTML comments (not containing IE conditional comments).
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$this->_html = preg_replace_callback(
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'/<!--([\\s\\S]*?)-->/'
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,array($this, '_commentCB')
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,$this->_html);
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// replace PREs with placeholders
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$this->_html = preg_replace_callback('/\\s*<pre(\\b[^>]*?>[\\s\\S]*?<\\/pre>)\\s*/i'
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,array($this, '_removePreCB')
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,$this->_html);
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// replace TEXTAREAs with placeholders
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$this->_html = preg_replace_callback(
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'/\\s*<textarea(\\b[^>]*?>[\\s\\S]*?<\\/textarea>)\\s*/i'
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,array($this, '_removeTextareaCB')
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,$this->_html);
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// trim each line.
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// @todo take into account attribute values that span multiple lines.
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// Fixed attribute values which span on multiple lines. Causes double spaces " "
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$this->_html = preg_replace('/^\s+|\s+$/m', ' ', $this->_html);
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// Fixed double spaces. Replaced with a single space
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$this->_html = preg_replace('/\s+/', ' ', $this->_html);
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// remove ws around block/undisplayed elements
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$this->_html = preg_replace('/\\s+(<\\/?(?:area|article|aside|base(?:font)?|blockquote|body'
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.'|canvas|caption|center|col(?:group)?|dd|dir|div|dl|dt|fieldset|figcaption|figure|footer|form'
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.'|frame(?:set)?|h[1-6]|head|header|hgroup|hr|html|legend|li|link|main|map|menu|meta|nav'
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.'|ol|opt(?:group|ion)|output|p|param|section|t(?:able|body|head|d|h||r|foot|itle)'
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.'|ul|video)\\b[^>]*>)/i', '$1', $this->_html);
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// remove ws outside of all elements
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$this->_html = preg_replace_callback(
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'/>([^<]+)</'
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,array($this, '_outsideTagCB')
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,$this->_html);
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// fill placeholders
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$this->_html = str_replace(
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array_keys($this->_placeholders)
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,array_values($this->_placeholders)
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,$this->_html
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);
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// issue 229: multi-pass to catch scripts that didn't get replaced in textareas
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$this->_html = str_replace(
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array_keys($this->_placeholders)
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,array_values($this->_placeholders)
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,$this->_html
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);
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return $this->_html;
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}
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protected function _commentCB($m)
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{
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return
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(
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false !== strpos($m[1], 'fwp-loop')
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false !== strpos($m[1], 'ngg_resource_manager_marker')
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0 === strpos($m[1], '[')
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||
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false !== strpos($m[1], '<![')
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0 === strpos($m[1], 'esi')
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||
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0 === strpos($m[1], 'noindex')
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||
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0 === strpos($m[1], '/noindex')
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0 === strpos($m[1], 'start_content')
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0 === strpos($m[1], 'end_content')
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||
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0 === strpos($m[1], '{{WP_ROCKET_CONDITIONAL}}')
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)
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? $m[0]
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: '';
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}
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protected function _reservePlace($content)
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{
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$placeholder = '%' . $this->_replacementHash . count($this->_placeholders) . '%';
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$this->_placeholders[$placeholder] = $content;
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return $placeholder;
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}
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protected $_isXhtml = null;
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protected $_replacementHash = null;
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protected $_placeholders = array();
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protected $_cssMinifier = null;
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protected $_jsMinifier = null;
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protected function _outsideTagCB($m)
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{
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return '>' . preg_replace('/^\\s+|\\s+$/', ' ', $m[1]) . '<';
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}
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protected function _removePreCB($m)
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{
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return $this->_reservePlace("<pre{$m[1]}");
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}
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protected function _removeTextareaCB($m)
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{
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return $this->_reservePlace("<textarea{$m[1]}");
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}
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protected function _removeStyleCB($m)
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{
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$openStyle = "<style{$m[1]}";
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$css = $m[2];
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// remove HTML comments
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$css = preg_replace('/(?:^\\s*<!--|-->\\s*$)/u', '', $css);
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// remove CDATA section markers
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$data = $this->_removeCdata($css);
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// minify
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$minifier = $this->_cssMinifier
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? $this->_cssMinifier
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: 'trim';
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$css = call_user_func($minifier, $data['content']);
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return $this->_reservePlace( $data['cdata']
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? "{$openStyle}/* <![CDATA[ */ {$css} /* ]]> */</style>"
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: "{$openStyle}{$css}</style>"
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);
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}
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protected function _removeScriptCB($m)
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{
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$openScript = "<script{$m[2]}";
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$js = $m[3];
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// whitespace surrounding? preserve at least one space
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$ws1 = ($m[1] === '') ? '' : ' ';
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$ws2 = ($m[4] === '') ? '' : ' ';
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// remove HTML comments (and ending "//" if present)
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if ($this->_jsCleanComments) {
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$js = preg_replace('/(?:^\\s*<!--\\s*|\\s*(?:\\/\\/)?\\s*-->\\s*$)/u', '', $js);
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}
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// remove CDATA section markers
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$data = $this->_removeCdata($js);
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// minify
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$minifier = $this->_jsMinifier
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? $this->_jsMinifier
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: 'trim';
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$js = call_user_func($minifier, $data['content']);
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return $this->_reservePlace($data['cdata']
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? "{$ws1}{$openScript}/* <![CDATA[ */ {$js} /* ]]> */</script>{$ws2}"
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: "{$ws1}{$openScript}{$js}</script>{$ws2}"
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);
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}
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protected function _removeCdata($str)
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{
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$data = array();
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if ( false !== strpos( $str, '<![CDATA[' ) ) {
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$data['content'] = str_replace( array( '/* <![CDATA[ */', '/* ]]> */' ), '', $str );
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$data['cdata'] = true;
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} else {
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$data['content'] = $str;
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$data['cdata'] = false;
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}
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return $data;
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}
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}
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