365 lines
8 KiB
PHP
365 lines
8 KiB
PHP
<?php
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namespace WP_Rocket\Engine\Optimization\QueryString;
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use WP_Rocket\Admin\Options_Data;
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use WP_Rocket\deprecated\DeprecatedClassTrait;
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use WP_Rocket\Engine\Optimization\AbstractOptimization;
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use WP_Rocket\Engine\Optimization\CSSTrait;
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/**
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* Remove query string from static resources.
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*
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* @since 3.1
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* @since 3.6 Deprecated.
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* @author Remy Perona
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* @deprecated
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*/
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class Remove extends AbstractOptimization {
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use DeprecatedClassTrait;
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use CSSTrait;
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/**
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* Plugin options instance.
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @var Options_Data
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*/
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protected $options;
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/**
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* Cache busting base path
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @var string
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*/
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protected $busting_path;
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/**
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* Cache busting base URL
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @var string
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*/
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protected $busting_url;
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/**
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* Excluded files from optimization
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @var string
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*/
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protected $excluded_files;
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/**
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* Constructor
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @param Options_Data $options Plugin options instance.
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* @param string $busting_path Base cache busting files path.
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* @param string $busting_url Base cache busting files URL.
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*/
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public function __construct( Options_Data $options, $busting_path, $busting_url ) {
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self::deprecated_class( '3.6' );
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$this->options = $options;
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$this->busting_path = $busting_path . get_current_blog_id() . '/';
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$this->busting_url = $busting_url . get_current_blog_id() . '/';
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}
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/**
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* Returns a regex-ready string with the excluded filepaths for the Remove Query Strings option
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*
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* @since 3.3.3
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* @author Remy Perona
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*
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* @return string
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*/
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protected function get_excluded_files() {
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static $excluded_files;
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if ( isset( $excluded_files ) ) {
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return $excluded_files;
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}
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/**
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* Filters files to exclude from cache busting
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*
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* @since 2.9.3
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* @author Remy Perona
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*
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* @param array $excluded_files An array of filepath to exclude.
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*/
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$excluded_files = apply_filters( 'rocket_exclude_cache_busting', [] );
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if ( empty( $excluded_files ) ) {
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$excluded_files = '';
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return $excluded_files;
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}
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foreach ( $excluded_files as $i => $excluded_file ) {
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// Escape character for future use in regex pattern.
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$excluded_files[ $i ] = str_replace( '#', '\#', $excluded_file );
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}
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$excluded_files = implode( '|', $excluded_files );
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return $excluded_files;
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}
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/**
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* Remove query strings for CSS files that have one
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @param string $html HTML content.
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* @return string
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*/
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public function remove_query_strings_css( $html ) {
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$html_nocomments = preg_replace( '/<!--(.*)-->/Uis', '', $html );
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$styles = $this->find( '<link\s+([^>]+[\s\'"])?href\s*=\s*[\'"]\s*?([^\'"]+\.css(?:\?[^\'"]*)?)\s*?[\'"]([^>]+)?\/?>', $html_nocomments );
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if ( ! $styles ) {
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return $html;
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}
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foreach ( $styles as $style ) {
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$url = $style[2];
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$url = $this->can_replace( $url );
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if ( ! $url ) {
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continue;
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}
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$optimized_url = $this->replace_url( $url, 'css' );
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if ( ! $optimized_url ) {
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continue;
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}
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$replace_style = str_replace( $style[2], $optimized_url, $style[0] );
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$html = str_replace( $style[0], $replace_style, $html );
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}
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return $html;
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}
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/**
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* Remove query strings for JS files that have one
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @param string $html HTML content.
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* @return string
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*/
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public function remove_query_strings_js( $html ) {
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$html_nocomments = $this->hide_comments( $html );
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$scripts = $this->find( '<script\s+([^>]+[\s\'"])?src\s*=\s*[\'"]\s*?([^\'"]+\.js(?:\?[^\'"]*)?)\s*?[\'"]([^>]+)?\/?>', $html_nocomments );
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if ( ! $scripts ) {
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return $html;
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}
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foreach ( $scripts as $script ) {
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$url = $script[2];
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$url = $this->can_replace( $url );
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if ( ! $url ) {
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continue;
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}
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$optimized_url = $this->replace_url( $url, 'js' );
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if ( ! $optimized_url ) {
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continue;
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}
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$replace_script = str_replace( $script[2], $optimized_url, $script[0] );
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$html = str_replace( $script[0], $replace_script, $html );
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}
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return $html;
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}
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/**
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* Gets the CDN zones.
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @return array
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*/
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public function get_zones() {
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return [ 'all', 'css_and_js', 'css', 'js' ];
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}
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/**
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* Determines if we can optimize
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @return boolean
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*/
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public function is_allowed() {
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if ( rocket_get_constant( 'DONOTROCKETOPTIMIZE' ) ) {
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return false;
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}
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if ( ! $this->options->get( 'remove_query_strings' ) ) {
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return false;
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}
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return true;
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}
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/**
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* Determines if we can perform the remove query string on that URL
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @param string $url source URL.
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* @return bool\string
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*/
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protected function can_replace( $url ) {
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$parsed_url = get_rocket_parse_url( $url );
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if ( empty( $parsed_url['query'] ) ) {
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return false;
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}
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$version = get_bloginfo( 'version' );
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if ( false !== strpos( $url, 'ver=' . $version ) ) {
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$url = rtrim( str_replace( [ 'ver=' . $version, '?&', '&&' ], [ '', '?', '&' ], $url ), '?&' );
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}
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if ( $this->is_external_file( $url ) ) {
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return false;
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}
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if ( $this->is_excluded( $url ) ) {
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return false;
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}
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return $url;
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}
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/**
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* Determines if the URL is excluded
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @param string $url source URL.
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* @return bool
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*/
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protected function is_excluded( $url ) {
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$excluded_files = $this->get_excluded_files();
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if ( ! empty( $excluded_files ) && preg_match( '#^' . $excluded_files . '$#', rocket_clean_exclude_file( $url ) ) ) {
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return true;
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}
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return false;
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}
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/**
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* Replaces the original URL with the cache busting URL
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @param string $url source URL.
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* @param string $extension file extension.
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* @return bool|string
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*/
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protected function replace_url( $url, $extension ) {
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$query = wp_parse_url( $url, PHP_URL_QUERY );
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if ( empty( $query ) ) {
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return $url;
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}
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// This filter is documented in /inc/classes/optimization/class-abstract-optimization.php.
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$internal_url = apply_filters( 'rocket_asset_url', $url, $this->get_zones() );
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$parsed_url = get_rocket_parse_url( $internal_url );
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$relative_src = ltrim( $parsed_url['path'] . '?' . $parsed_url['query'], '/' );
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$filename = preg_replace( '/\.(' . $extension . ')\?(?:timestamp|ver)=([^&]+)(?:.*)/', '-$2.$1', $relative_src );
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if ( $relative_src === $filename ) {
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return $url;
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}
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$busting_file = $this->busting_path . $filename;
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$busting_url = $this->get_busting_url( $filename, $extension, $url );
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if ( rocket_direct_filesystem()->is_readable( $busting_file ) ) {
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return $busting_url;
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}
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$file = $this->get_file_path( $url );
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if ( ! $file ) {
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return false;
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}
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$busting_content = $this->get_file_content( $file );
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if ( ! $busting_content ) {
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return false;
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}
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if ( 'css' === $extension ) {
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$busting_content = $this->rewrite_paths( $file, $busting_file, $busting_content );
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}
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if ( ! $this->write_file( $busting_content, $busting_file ) ) {
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return false;
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}
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return $busting_url;
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}
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/**
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* Gets the cache busting URL
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*
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* @since 3.1
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* @author Remy Perona
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*
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* @param string $filename Cache busting filename.
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* @param string $extension File extension.
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* @param string $original_url Original URL for the file.
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* @return string
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*/
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protected function get_busting_url( $filename, $extension, $original_url ) {
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$url = $this->busting_url . $filename;
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switch ( $extension ) {
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case 'css':
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// This filter is documented in inc/classes/optimization/css/class-abstract-css-optimization.php.
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$url = apply_filters( 'rocket_css_url', $url, $original_url );
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break;
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case 'js':
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// This filter is documented in inc/classes/optimization/css/class-abstract-js-optimization.php.
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$url = apply_filters( 'rocket_js_url', $url, $original_url );
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break;
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}
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return $url;
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}
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}
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