196 lines
6.5 KiB
PHP
196 lines
6.5 KiB
PHP
<?php
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if ( ! function_exists( 'wp_cache_phase2' ) ) {
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require_once __DIR__. '/wp-cache-phase2.php';
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}
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// error_reporting(E_ERROR | E_PARSE); // uncomment to debug this file!
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// directory where the configuration file lives.
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if ( !defined( 'WPCACHECONFIGPATH' ) ) {
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define( 'WPCACHECONFIGPATH', WP_CONTENT_DIR );
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}
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if ( ! @include WPCACHECONFIGPATH . '/wp-cache-config.php' ) {
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return false;
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}
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// points at the wp-super-cache plugin directory because sometimes file paths are weird. Edge cases,
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if ( ! defined( 'WPCACHEHOME' ) ) {
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define( 'WPCACHEHOME', __DIR__ . '/' );
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}
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if ( defined( 'DISABLE_SUPERCACHE' ) ) {
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wp_cache_debug( 'DISABLE_SUPERCACHE set, super_cache disabled.' );
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$super_cache_enabled = 0;
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}
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require WPCACHEHOME . 'wp-cache-base.php';
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if ( '/' === $cache_path || empty( $cache_path ) ) {
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define( 'WPSCSHUTDOWNMESSAGE', 'WARNING! Caching disabled. Configuration corrupted. Reset configuration on Advanced Settings page.' );
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add_action( 'wp_footer', 'wpsc_shutdown_message' );
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if ( ! defined( 'DONOTCACHEPAGE' ) ) {
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define( 'DONOTCACHEPAGE', 1 );
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}
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return;
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}
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// $blog_cache_dir is used all over the code alongside the supercache directory but at least with multisite installs it appears to do nothing.
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// I started putting everything in cache/supercache/blogname/path/ a long time ago but never got around to removing the code that used the blogs directory.
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if ( $blogcacheid != '' ) {
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$blog_cache_dir = str_replace( '//', '/', $cache_path . 'blogs/' . $blogcacheid . '/' );
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} else {
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$blog_cache_dir = $cache_path;
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}
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$wp_cache_phase1_loaded = true;
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// part of the coarse file locking which should really be removed, but there are edge cases where semaphores didn't work in the past.
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$mutex_filename = 'wp_cache_mutex.lock';
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$new_cache = false;
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// write a plugin to extend wp-super-cache!
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if ( ! isset( $wp_cache_plugins_dir ) ) {
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$wp_cache_plugins_dir = WPCACHEHOME . 'plugins';
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}
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// from the secret shown on the Advanced settings page.
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if ( isset( $_GET['donotcachepage'] ) && isset( $cache_page_secret ) && $_GET['donotcachepage'] == $cache_page_secret ) {
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if ( ! defined( 'DONOTCACHEPAGE' ) ) {
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define( 'DONOTCACHEPAGE', 1 );
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}
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}
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// Load wp-super-cache plugins
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$plugins = glob( $wp_cache_plugins_dir . '/*.php' );
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if ( is_array( $plugins ) ) {
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foreach ( $plugins as $plugin ) {
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if ( is_file( $plugin ) ) {
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require_once $plugin;
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}
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}
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}
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// Load plugins from an array of php scripts. This needs to be documented.
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if ( isset( $wpsc_plugins ) && is_array( $wpsc_plugins ) ) {
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foreach( $wpsc_plugins as $plugin_file ) {
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if ( file_exists( ABSPATH . $plugin_file ) ) {
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include_once( ABSPATH . $plugin_file );
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}
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}
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}
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// also look for plugins in wp-content/wp-super-cache-plugins/
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if (
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file_exists( WPCACHEHOME . '../wp-super-cache-plugins/' ) &&
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is_dir( WPCACHEHOME . '../wp-super-cache-plugins/' )
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) {
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$plugins = glob( WPCACHEHOME . '../wp-super-cache-plugins/*.php' );
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if ( is_array( $plugins ) ) {
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foreach ( $plugins as $plugin ) {
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if ( is_file( $plugin ) ) {
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require_once $plugin;
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}
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}
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}
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}
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// for timing purposes for the html comments
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$wp_start_time = microtime();
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if ( isset( $_SERVER['REQUEST_URI'] ) ) { // Cache this in case any plugin modifies it and filter out tracking parameters.
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// phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized WordPress.Security.ValidatedSanitizedInput.MissingUnslash -- none available before WordPress is loaded. Sanitized in wp_cache_postload().
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$wp_cache_request_uri = wpsc_remove_tracking_params_from_uri( $_SERVER['REQUEST_URI'] ); // phpcs:ignore
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// $wp_cache_request_uri is expected to be a string. If running from wp-cli it will be null.
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if ( $wp_cache_request_uri === null ) {
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$wp_cache_request_uri = '';
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}
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} else {
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$wp_cache_request_uri = '';
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}
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// don't cache in wp-admin
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if ( wpsc_is_backend() ) {
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if ( ! defined( 'DONOTCACHEPAGE' ) ) {
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define( 'DONOTCACHEPAGE', 1 );
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}
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return true;
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}
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// if a cookie is found that we don't like then don't serve/cache the page
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if ( wpsc_is_rejected_cookie() ) {
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if ( ! defined( 'DONOTCACHEPAGE' ) ) {
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define( 'DONOTCACHEPAGE', 1 );
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}
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wp_cache_debug( 'Caching disabled because rejected cookie found.' );
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return true;
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}
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if ( wpsc_is_caching_user_disabled() ) {
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wp_cache_debug( 'Caching disabled for logged in users on settings page.' );
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if ( ! defined( 'DONOTCACHEPAGE' ) ) {
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define( 'DONOTCACHEPAGE', 1 );
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}
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return true;
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}
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// make logged in users anonymous so they are shown logged out pages.
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if ( isset( $wp_cache_make_known_anon ) && $wp_cache_make_known_anon ) {
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wp_supercache_cache_for_admins();
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}
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// an init action wpsc plugins can hook on to.
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do_cacheaction( 'cache_init' );
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if ( ! $cache_enabled ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UndefinedVariable -- set by configuration or cache_init action
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return true;
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}
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// don't cache or serve cached files for various URLs, including the Customizer.
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if ( isset( $_SERVER['REQUEST_METHOD'] ) && in_array( $_SERVER['REQUEST_METHOD'], array( 'POST', 'PUT', 'DELETE' ), true ) ) {
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wp_cache_debug( 'Caching disabled for non GET request.' );
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if ( ! defined( 'DONOTCACHEPAGE' ) ) {
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define( 'DONOTCACHEPAGE', 1 );
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}
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return true;
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}
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if ( isset( $_GET['customize_changeset_uuid'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
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wp_cache_debug( 'Caching disabled for customizer.' );
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if ( ! defined( 'DONOTCACHEPAGE' ) ) {
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define( 'DONOTCACHEPAGE', 1 );
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}
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return true;
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}
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$file_expired = false;
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$cache_filename = '';
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$meta_file = '';
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$wp_cache_gzip_encoding = '';
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$gzipped = 0;
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$gzsize = 0;
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if ( $cache_compression ) {
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$wp_cache_gzip_encoding = gzip_accepted(); // false or 'gzip'
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}
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// The wp_cache_check_mobile function appends "-mobile" to the cache filename if it detects a mobile visitor.
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add_cacheaction( 'supercache_filename_str', 'wp_cache_check_mobile' );
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if ( function_exists( 'add_filter' ) ) { // loaded since WordPress 4.6
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add_filter( 'supercache_filename_str', 'wp_cache_check_mobile' );
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}
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if ( defined( 'DOING_CRON' ) ) {
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// this is required for scheduled CRON jobs.
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extract( wp_super_cache_init() ); // $key, $cache_filename, $meta_file, $cache_file, $meta_pathname
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return true;
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}
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// late init delays serving a cache file until after the WordPress init actin has fired and (most of?) WordPress has loaded.
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// If it's not enabled then serve a cache file now if possible.
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if ( ! isset( $wp_super_cache_late_init ) || 0 === $wp_super_cache_late_init ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UndefinedVariable -- the wp-cache-config.php include attempt may define this var
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wp_cache_serve_cache_file();
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}
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