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Direktori : /var/www/html/buggydubrovnik.com/wp-content/themes/Avada/includes/ |
Current File : /var/www/html/buggydubrovnik.com/wp-content/themes/Avada/includes/class-avada-dynamic-css.php |
<?php class Avada_Dynamic_CSS { public static $mode; public function __construct() { $this->add_options(); // Set mode add_action( 'wp', array( $this, 'set_mode' ) ); // When a post is saved, reset its caches to force-regenerate the CSS. add_action( 'save_post', array( $this, 'reset_post_transient' ) ); add_action( 'save_post', array( $this, 'post_update_option' ) ); // When we change the options, reset all caches so that all CSS can be re-generated add_action( 'avada_save_options', array( $this, 'reset_all_transients' ) ); add_action( 'avada_save_options', array( $this, 'clear_cache' ) ); add_action( 'avada_save_options', array( $this, 'global_reset_option' ) ); add_action( 'avada_save_options', array( $this, 'clear_cache' ) ); add_action( 'customize_save_after', array( $this, 'reset_all_caches' ) ); // Add the CSS add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_dynamic_css' ), 11 ); add_action( 'wp_head', array( $this, 'add_inline_css' ), 999 ); } /** * get the current page ID. * * @return int the current page ID. */ public static function page_id() { global $post; $id = false; if ( isset( $post ) ) { // If this is a singular page/post then set ID to the page ID. // If not, then set it to false. $id = ( is_singular() ) ? $post->ID : false; // If we're on the WooCommerce shop page, get the ID of the page // using the 'woocommerce_shop_page_id' option if ( function_exists( 'is_shop' ) && is_shop() ) { $id = get_option( 'woocommerce_shop_page_id' ); } // If we're on the posts page, get the ID of the page // using the 'page_for_posts' option. if ( is_home() ) { $id = get_option( 'page_for_posts' ); } } return $id; } /** * Determine if we're using file mode or inline mode. * * @return string file/inline */ public static function set_mode() { // Check if we're using file mode or inline mode. // This simply checks the dynamic_css_compiler options. $mode = ( Avada()->settings->get( 'dynamic_css_compiler' ) ) ? 'file' : 'inline'; // ALWAYS use 'inline' mode when in the customizer. global $wp_customize; if ( $wp_customize ) { return 'inline'; } // Additional checks for file mode. if ( 'file' == $mode && self::needs_update() ) { // Only allow processing 1 file every 5 seconds. $current_time = (int) time(); $last_time = (int) get_option( 'avada_dynamic_css_time' ); if ( 5 <= ( $current_time - $last_time ) ) { // If it's been more than 5 seconds since we last compiled a file // then attempt to write to the file. // If the file-write succeeds then set mode to 'file'. // If the file-write fails then set mode to 'inline'. $mode = ( self::can_write() && self::make_css() ) ? 'file' : 'inline'; // If the file exists then set mode to 'file' // If it does not exist then set mode to 'inline'. if ( 'file' == $mode ) { $mode = ( file_exists( self::file( 'path' ) ) ) ? 'file' : 'inline'; } } else { // It's been less than 5 seconds since we last compiled a CSS file // In order to prevent server meltdowns on weak servers we'll use inline mode instead. $mode = 'inline'; } } self::$mode = $mode; } /** * Enqueue the dynamic CSS. * * @return void */ public function enqueue_dynamic_css() { if ( 'file' == self::$mode ) { // Yay! we're using a file for our CSS, so enqueue it. wp_enqueue_style( 'avada-dynamic-css', self::file( 'uri' ), array( 'avada-stylesheet' ) ); } // In case of no file mode, the CSS file is not enqueued // but it is added in header.php // No further action is required here. } /** * This function takes care of creating the CSS. * * @return bool true/false depending on whether the file is successfully created or not. */ public static function make_css() { global $wp_filesystem; // Instantiate the Wordpress filesystem. if ( empty( $wp_filesystem ) ) { require_once( ABSPATH . '/wp-admin/includes/file.php' ); WP_Filesystem(); } // Creates the content of the CSS file. // We're adding a warning at the top of the file to prevent users from editing it. // The warning is then followed by the actual CSS content. $content = "/********* Compiled - Do not edit *********/\n" . avada_dynamic_css_cached(); // When using domain-mapping plugins we have to make sure that any references to the original domain // are replaced with references to the mapped domain. // We're also stripping protocols from these domains so that there are no issues with SSL certificates. if ( defined( 'DOMAIN_MAPPING' ) && DOMAIN_MAPPING ) { if ( function_exists( 'domain_mapping_siteurl' ) && function_exists( 'get_original_url' ) ) { // The mapped domain of the site $mapped_domain = domain_mapping_siteurl( false ); $mapped_domain = str_replace( 'https://', '//', $mapped_domain ); $mapped_domain = str_replace( 'http://', '//', $mapped_domain ); // The original domain of the site $original_domain = get_original_url( 'siteurl' ); $original_domain = str_replace( 'https://', '//', $original_domain ); $original_domain = str_replace( 'http://', '//', $original_domain ); // Replace original domain with mapped domain $content = str_replace( $original_domain, $mapped_domain, $content ); } } // Replace wp-content url with relative path $upload_dir = wp_upload_dir(); $content = str_replace( $upload_dir['baseurl'], '..', $content ); $content = str_replace( content_url(), '../..', $content ); // Strip protocols. This helps avoid any issues with https sites. $content = str_replace( 'https://', '//', $content ); $content = str_replace( 'http://', '//', $content ); // Since we've already checked if the file is writable in the can_write() method (called by the mode() method) // it's safe to continue without any additional checks as to the validity of the file. if ( ! $wp_filesystem->put_contents( self::file( 'path' ), $content, FS_CHMOD_FILE ) ) { // Writing to the file failed return false; } else { // Writing to the file succeeded. // Update the opion in the db so that we know the css for this post has been successfully generated // and then return true. $page_id = ( self::page_id() ) ? self::page_id() : 'global'; $option = get_option( 'avada_dynamic_css_posts', array() ); $option[ $page_id ] = true; update_option( 'avada_dynamic_css_posts', $option ); // Update the 'avada_dynamic_css_time' option. self::update_saved_time(); return true; } } /* * Determines if the CSS file is writable. * * @return bool */ public static function can_write() { // Get the blog ID. $blog_id = 1; if ( is_multisite() ) { $current_site = get_blog_details(); $blog_id = $current_site->blog_id; } // Get the upload directory for this site. $upload_dir = wp_upload_dir(); // If this is a multisite installation, append the blogid to the filename $blog_id = ( is_multisite() && $blog_id > 1 ) ? '_blog-' . $blog_id : null; $page_id = ( self::page_id() ) ? self::page_id() : 'global'; $file_name = '/avada' . $blog_id . '-' . $page_id . '.css'; $folder_path = $upload_dir['basedir'] . DIRECTORY_SEPARATOR . 'avada-styles'; // Does the folder exist? if ( file_exists( $folder_path ) ) { // Folder exists, but is it actually writable? if ( ! is_writable( $folder_path ) ) { // Folder is not writable. // Does the file exist? if ( ! file_exists( $folder_path . $file_name ) ) { // If the file does not exist, then we can't create it // since its parent folder is not writable. return false; } else { // The file exists. Is it writable? if ( ! is_writable( $folder_path . $file_name ) ) { // Nope, it's not writable. return false; } } } else { // The folder is writable. // Does the file exist? if ( file_exists( $folder_path . $file_name ) ) { // File exists. Is it writable? if ( ! is_writable( $folder_path . $file_name ) ) { // Nope, it's not writable return false; } } } } else { // Can we create the folder? // returns true if yes and false if not. return wp_mkdir_p( $folder_path ); } // If we passed all of the above tests // then the file is writable. return true; } /* * Gets the css path or url to the stylesheet * * @var string path/url * @return string path or url to the file depending on the $target var. * */ public static function file( $target = 'path' ) { /** * Get the blog ID */ if ( is_multisite() ) { $current_site = get_blog_details(); $blog_id = $current_site->blog_id; } else { $blog_id = 1; } // Get the upload directory for this site. $upload_dir = wp_upload_dir(); // If this is a multisite installation, append the blogid to the filename $blog_id = ( is_multisite() && $blog_id > 1 ) ? '_blog-' . $blog_id : null; $page_id = ( self::page_id() ) ? self::page_id() : 'global'; $file_name = 'avada' . $blog_id . '-' . $page_id . '.css'; $folder_path = $upload_dir['basedir'] . DIRECTORY_SEPARATOR . 'avada-styles'; // The complete path to the file. $file_path = $folder_path . DIRECTORY_SEPARATOR . $file_name; // Get the URL directory of the stylesheet $css_uri_folder = $upload_dir['baseurl']; // Build the URL of the file $css_uri = trailingslashit( $css_uri_folder ) . 'avada-styles/' . $file_name; // Take care of domain mapping. // When using domain mapping we have to make sure that the URL to the file // does not include the original domain but instead the mapped domain. if ( defined( 'DOMAIN_MAPPING' ) && DOMAIN_MAPPING ) { if ( function_exists( 'domain_mapping_siteurl' ) && function_exists( 'get_original_url' ) ) { $mapped_domain = domain_mapping_siteurl( false ); $original_domain = get_original_url( 'siteurl' ); $css_uri = str_replace( $original_domain, $mapped_domain, $css_uri ); } } // Strip protocols from the URL. // Make sure we don't have any issues with sites using HTTPS/SSL $css_uri = str_replace( 'https://', '//', $css_uri ); $css_uri = str_replace( 'http://', '//', $css_uri ); // Return the path or the URL // depending on the $target we have defined when calling this method. if ( 'path' == $target ) { return $file_path; } elseif ( 'url' == $target || 'uri' == $target ) { $timestamp = ( file_exists( $file_path ) ) ? '?timestamp=' . filemtime( $file_path ) : ''; return $css_uri . $timestamp; } } /** * Reset ALL CSS transient caches. * * @return void */ public function reset_all_transients() { global $wpdb; // Build the query to delete all avada transients and execute the required SQL $sql = "DELETE FROM $wpdb->options WHERE option_name LIKE '_transient_avada_dynamic_css_%'"; $wpdb->query( $sql ); } /** * Reset the dynamic CSS transient for a post. * * @param $post_id the ID of the post that's being reset. * @return void */ public function reset_post_transient( $post_id ) { delete_transient( 'avada_dynamic_css_' . $post_id ); } /** * Create settings. * * @return void */ public function add_options() { // The 'avada_dynamic_css_posts' option will hold an array of posts that have had their css generated. // We can use that to keep track of which pages need their CSS to be recreated and which don't. add_option( 'avada_dynamic_css_time', array(), '', 'yes' ); // The 'avada_dynamic_css_time' option holds the time the file writer was last used. add_option( 'avada_dynamic_css_time', time(), '', 'yes' ); } /** * Update the avada_dynamic_css_posts option when a post is saved. * This adds the current post's ID in the array of IDs that the 'avada_dynamic_css_posts' option has. * * @return void */ public function post_update_option( $post_id ) { $option = get_option( 'avada_dynamic_css_posts', array() ); $option[ $post_id ] = false; update_option( 'avada_dynamic_css_posts', $option ); } /** * Update the avada_dynemic_css_posts option when the theme options are saved. * This basically empties the array of page IDS from the 'avada_dynamic_css_posts' option */ public function global_reset_option() { update_option( 'avada_dynamic_css_posts', array() ); } /** * Do we need to update the CSS file? * * @return bool */ public static function needs_update() { // Get the 'avada_dynamic_css_posts' option from the DB $option = get_option( 'avada_dynamic_css_posts', array() ); // Get the current page ID $page_id = ( self::page_id() ) ? self::page_id() : 'global'; // If the CSS file does not exist then we definitely need to regenerate the CSS. if ( ! file_exists( self::file( 'path' ) ) ) { return true; } // Check if the time of the dynamic-css.php file is newer than the css file itself. // If yes, then we need to update the css. // This is primarily added here for development purposes. $dynamic_css_script = get_template_directory() . DIRECTORY_SEPARATOR . 'includes' . DIRECTORY_SEPARATOR . 'dynamic_css.php'; if ( filemtime( $dynamic_css_script ) > filemtime( self::file( 'path' ) ) ) { return true; } // If the current page ID exists in the array of pages defined in the 'avada_dynamic_css_posts' option // then the page has already been compiled and we don't need to re-compile it. // If it's not in the array then it has not been compiled before so we need to update it. return ( ! isset( $option[ $page_id ] ) || ! $option[ $page_id ] ) ? true : false; } /** * Update the 'avada_dynamic_css_time' option. * This will save in the db the last time that the compiler has run. * * @return void */ public static function update_saved_time() { update_option( 'avada_dynamic_css_time', time() ); } /** * Clear cache from: * - W3TC, * - WordPress Total Cache * - WPEngine * - Varnish */ public function clear_cache() { // if W3 Total Cache is being used, clear the cache if ( function_exists( 'w3tc_pgcache_flush' ) ) { w3tc_pgcache_flush(); } // if WP Super Cache is being used, clear the cache else if ( function_exists( 'wp_cache_clean_cache' ) ) { global $file_prefix; wp_cache_clean_cache( $file_prefix ); } // Clear caches on WPEngine-hosted sites else if ( class_exists( 'WpeCommon' ) ) { WpeCommon::purge_memcached(); WpeCommon::clear_maxcdn_cache(); WpeCommon::purge_varnish_cache(); } // Clear Varnish caches if ( Avada()->settings->get( 'dynamic_css_compiler' ) && Avada()->settings->get( 'cache_server_ip' ) ) { $this->clear_varnish_cache( self::file( 'url' ) ); } } /** * Clear varnish cache for the dynamic CSS file * * @param $url the URL of the file whose cache we want to reset * @return void */ public function clear_varnish_cache( $url ) { // Parse the URL for proxy proxies $p = parse_url( $url ); $varnish_x_purgemethod = ( isset( $p['query'] ) && ( 'vhp=regex' == $p['query'] ) ) ? 'regex' : 'default'; // Build a varniship $varniship = get_option( 'vhp_varnish_ip' ); if ( Avada()->settings->get( 'cache_server_ip' ) ) { $varniship = Avada()->settings->get( 'cache_server_ip' ); } else if ( defined( 'VHP_VARNISH_IP' ) && VHP_VARNISH_IP != false ) { $varniship = VHP_VARNISH_IP; } // If we made varniship, let it sail. $purgeme = ( isset( $varniship ) && $varniship != null ) ? $varniship : $p['host']; wp_remote_request( 'http://' . $purgeme, array( 'method' => 'PURGE', 'headers' => array( 'host' => $p['host'], 'X-Purge-Method' => $varnish_x_purgemethod ) ) ); } /** * Add Inline CSS * * @return void */ public function add_inline_css() { global $wp_customize; // Inline Dynamic CSS // This is here because we need it after all Avada CSS // and W3TC can combine it incorrectly if ( 'inline' == self::$mode || $wp_customize ) { echo "<style id='avada-stylesheet-inline-css' type='text/css'>" . avada_dynamic_css_cached() . '</style>'; } } /** * This is just a facilitator that will allow us to reset everything. * Its only job is calling the other methods from this class and reset parts of our caches * * @return void */ public function reset_all_caches() { $this->reset_all_transients(); $this->clear_cache(); $this->global_reset_option(); $this->clear_cache(); } } // Omit closing PHP tag to avoid "Headers already sent" issues.