mirror of
https://github.com/WordPress/WordPress.git
synced 2024-11-15 07:05:37 +01:00
edfe2ece51
Rework logic for how external object caches are detected, so that if an external cache does not define a `wp_cache_init()`, the built-in object cache will be used. Object caches can now wrap their entire contents in logic checks. So a Redis caching backend could make sure that the `Redis` PHP class is available before defining all the caching functions. And if Redis is not available, the site doesn't break or throw errors or think it is using caching when it isn't. This is particularly useful for doing local development, where you might want to develop on a site without running Memcache or Redis like you are in production. * Accounts for multisite, which may re-initialize the object cache multiple times. * Accounts for object caches that may include `object-cache.php` during `advanced-cache.php` (before WP loads it). Props jtsternberg, markjaquith. Fixes #22661. Built from https://develop.svn.wordpress.org/trunk@42723 git-svn-id: http://core.svn.wordpress.org/trunk@42553 1a063a9b-81f0-0310-95a4-ce76da25c4cd
1255 lines
35 KiB
PHP
1255 lines
35 KiB
PHP
<?php
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/**
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* These functions are needed to load WordPress.
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*
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* @package WordPress
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*/
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/**
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* Return the HTTP protocol sent by the server.
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*
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* @since 4.4.0
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*
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* @return string The HTTP protocol. Default: HTTP/1.0.
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*/
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function wp_get_server_protocol() {
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$protocol = $_SERVER['SERVER_PROTOCOL'];
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if ( ! in_array( $protocol, array( 'HTTP/1.1', 'HTTP/2', 'HTTP/2.0' ) ) ) {
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$protocol = 'HTTP/1.0';
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}
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return $protocol;
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}
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/**
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* Turn register globals off.
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*
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* @since 2.1.0
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* @access private
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*/
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function wp_unregister_GLOBALS() {
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if ( ! ini_get( 'register_globals' ) ) {
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return;
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}
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if ( isset( $_REQUEST['GLOBALS'] ) ) {
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die( 'GLOBALS overwrite attempt detected' );
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}
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// Variables that shouldn't be unset
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$no_unset = array( 'GLOBALS', '_GET', '_POST', '_COOKIE', '_REQUEST', '_SERVER', '_ENV', '_FILES', 'table_prefix' );
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$input = array_merge( $_GET, $_POST, $_COOKIE, $_SERVER, $_ENV, $_FILES, isset( $_SESSION ) && is_array( $_SESSION ) ? $_SESSION : array() );
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foreach ( $input as $k => $v ) {
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if ( ! in_array( $k, $no_unset ) && isset( $GLOBALS[ $k ] ) ) {
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unset( $GLOBALS[ $k ] );
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}
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}
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}
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/**
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* Fix `$_SERVER` variables for various setups.
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*
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* @since 3.0.0
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* @access private
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*
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* @global string $PHP_SELF The filename of the currently executing script,
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* relative to the document root.
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*/
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function wp_fix_server_vars() {
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global $PHP_SELF;
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$default_server_values = array(
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'SERVER_SOFTWARE' => '',
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'REQUEST_URI' => '',
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);
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$_SERVER = array_merge( $default_server_values, $_SERVER );
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// Fix for IIS when running with PHP ISAPI
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if ( empty( $_SERVER['REQUEST_URI'] ) || ( PHP_SAPI != 'cgi-fcgi' && preg_match( '/^Microsoft-IIS\//', $_SERVER['SERVER_SOFTWARE'] ) ) ) {
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// IIS Mod-Rewrite
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if ( isset( $_SERVER['HTTP_X_ORIGINAL_URL'] ) ) {
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$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL'];
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} // IIS Isapi_Rewrite
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elseif ( isset( $_SERVER['HTTP_X_REWRITE_URL'] ) ) {
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$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_REWRITE_URL'];
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} else {
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// Use ORIG_PATH_INFO if there is no PATH_INFO
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if ( ! isset( $_SERVER['PATH_INFO'] ) && isset( $_SERVER['ORIG_PATH_INFO'] ) ) {
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$_SERVER['PATH_INFO'] = $_SERVER['ORIG_PATH_INFO'];
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}
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// Some IIS + PHP configurations puts the script-name in the path-info (No need to append it twice)
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if ( isset( $_SERVER['PATH_INFO'] ) ) {
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if ( $_SERVER['PATH_INFO'] == $_SERVER['SCRIPT_NAME'] ) {
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$_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO'];
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} else {
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$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . $_SERVER['PATH_INFO'];
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}
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}
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// Append the query string if it exists and isn't null
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if ( ! empty( $_SERVER['QUERY_STRING'] ) ) {
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$_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
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}
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}
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}
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// Fix for PHP as CGI hosts that set SCRIPT_FILENAME to something ending in php.cgi for all requests
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if ( isset( $_SERVER['SCRIPT_FILENAME'] ) && ( strpos( $_SERVER['SCRIPT_FILENAME'], 'php.cgi' ) == strlen( $_SERVER['SCRIPT_FILENAME'] ) - 7 ) ) {
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$_SERVER['SCRIPT_FILENAME'] = $_SERVER['PATH_TRANSLATED'];
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}
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// Fix for Dreamhost and other PHP as CGI hosts
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if ( strpos( $_SERVER['SCRIPT_NAME'], 'php.cgi' ) !== false ) {
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unset( $_SERVER['PATH_INFO'] );
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}
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// Fix empty PHP_SELF
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$PHP_SELF = $_SERVER['PHP_SELF'];
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if ( empty( $PHP_SELF ) ) {
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$_SERVER['PHP_SELF'] = $PHP_SELF = preg_replace( '/(\?.*)?$/', '', $_SERVER['REQUEST_URI'] );
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}
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}
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/**
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* Check for the required PHP version, and the MySQL extension or
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* a database drop-in.
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*
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* Dies if requirements are not met.
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*
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* @since 3.0.0
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* @access private
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*
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* @global string $required_php_version The required PHP version string.
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* @global string $wp_version The WordPress version string.
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*/
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function wp_check_php_mysql_versions() {
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global $required_php_version, $wp_version;
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$php_version = phpversion();
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if ( version_compare( $required_php_version, $php_version, '>' ) ) {
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wp_load_translations_early();
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$protocol = wp_get_server_protocol();
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header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 );
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header( 'Content-Type: text/html; charset=utf-8' );
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/* translators: 1: Current PHP version number, 2: WordPress version number, 3: Minimum required PHP version number */
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die( sprintf( __( 'Your server is running PHP version %1$s but WordPress %2$s requires at least %3$s.' ), $php_version, $wp_version, $required_php_version ) );
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}
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if ( ! extension_loaded( 'mysql' ) && ! extension_loaded( 'mysqli' ) && ! extension_loaded( 'mysqlnd' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' ) ) {
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wp_load_translations_early();
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$protocol = wp_get_server_protocol();
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header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 );
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header( 'Content-Type: text/html; charset=utf-8' );
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die( __( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ) );
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}
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}
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/**
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* Don't load all of WordPress when handling a favicon.ico request.
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*
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* Instead, send the headers for a zero-length favicon and bail.
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*
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* @since 3.0.0
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*/
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function wp_favicon_request() {
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if ( '/favicon.ico' == $_SERVER['REQUEST_URI'] ) {
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header( 'Content-Type: image/vnd.microsoft.icon' );
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exit;
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}
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}
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/**
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* Die with a maintenance message when conditions are met.
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*
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* Checks for a file in the WordPress root directory named ".maintenance".
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* This file will contain the variable $upgrading, set to the time the file
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* was created. If the file was created less than 10 minutes ago, WordPress
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* enters maintenance mode and displays a message.
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*
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* The default message can be replaced by using a drop-in (maintenance.php in
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* the wp-content directory).
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*
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* @since 3.0.0
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* @access private
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*
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* @global int $upgrading the unix timestamp marking when upgrading WordPress began.
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*/
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function wp_maintenance() {
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if ( ! file_exists( ABSPATH . '.maintenance' ) || wp_installing() ) {
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return;
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}
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global $upgrading;
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include( ABSPATH . '.maintenance' );
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// If the $upgrading timestamp is older than 10 minutes, don't die.
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if ( ( time() - $upgrading ) >= 600 ) {
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return;
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}
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/**
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* Filters whether to enable maintenance mode.
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*
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* This filter runs before it can be used by plugins. It is designed for
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* non-web runtimes. If this filter returns true, maintenance mode will be
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* active and the request will end. If false, the request will be allowed to
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* continue processing even if maintenance mode should be active.
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*
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* @since 4.6.0
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*
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* @param bool $enable_checks Whether to enable maintenance mode. Default true.
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* @param int $upgrading The timestamp set in the .maintenance file.
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*/
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if ( ! apply_filters( 'enable_maintenance_mode', true, $upgrading ) ) {
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return;
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}
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if ( file_exists( WP_CONTENT_DIR . '/maintenance.php' ) ) {
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require_once( WP_CONTENT_DIR . '/maintenance.php' );
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die();
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}
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wp_load_translations_early();
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$protocol = wp_get_server_protocol();
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header( "$protocol 503 Service Unavailable", true, 503 );
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header( 'Content-Type: text/html; charset=utf-8' );
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header( 'Retry-After: 600' );
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$dir_attr = '';
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if ( is_rtl() ) {
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$dir_attr = ' dir="rtl"';
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}
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?>
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<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml"<?php echo $dir_attr; ?>>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title><?php _e( 'Maintenance' ); ?></title>
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</head>
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<body>
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<h1><?php _e( 'Briefly unavailable for scheduled maintenance. Check back in a minute.' ); ?></h1>
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</body>
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</html>
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<?php
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die();
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}
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/**
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* Start the WordPress micro-timer.
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*
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* @since 0.71
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* @access private
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*
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* @global float $timestart Unix timestamp set at the beginning of the page load.
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* @see timer_stop()
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*
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* @return bool Always returns true.
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*/
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function timer_start() {
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global $timestart;
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$timestart = microtime( true );
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return true;
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}
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/**
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* Retrieve or display the time from the page start to when function is called.
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*
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* @since 0.71
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*
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* @global float $timestart Seconds from when timer_start() is called.
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* @global float $timeend Seconds from when function is called.
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*
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* @param int|bool $display Whether to echo or return the results. Accepts 0|false for return,
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* 1|true for echo. Default 0|false.
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* @param int $precision The number of digits from the right of the decimal to display.
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* Default 3.
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* @return string The "second.microsecond" finished time calculation. The number is formatted
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* for human consumption, both localized and rounded.
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*/
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function timer_stop( $display = 0, $precision = 3 ) {
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global $timestart, $timeend;
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$timeend = microtime( true );
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$timetotal = $timeend - $timestart;
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$r = ( function_exists( 'number_format_i18n' ) ) ? number_format_i18n( $timetotal, $precision ) : number_format( $timetotal, $precision );
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if ( $display ) {
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echo $r;
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}
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return $r;
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}
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/**
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* Set PHP error reporting based on WordPress debug settings.
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*
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* Uses three constants: `WP_DEBUG`, `WP_DEBUG_DISPLAY`, and `WP_DEBUG_LOG`.
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* All three can be defined in wp-config.php. By default, `WP_DEBUG` and
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* `WP_DEBUG_LOG` are set to false, and `WP_DEBUG_DISPLAY` is set to true.
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*
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* When `WP_DEBUG` is true, all PHP notices are reported. WordPress will also
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* display internal notices: when a deprecated WordPress function, function
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* argument, or file is used. Deprecated code may be removed from a later
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* version.
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*
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* It is strongly recommended that plugin and theme developers use `WP_DEBUG`
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* in their development environments.
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*
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* `WP_DEBUG_DISPLAY` and `WP_DEBUG_LOG` perform no function unless `WP_DEBUG`
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* is true.
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*
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* When `WP_DEBUG_DISPLAY` is true, WordPress will force errors to be displayed.
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* `WP_DEBUG_DISPLAY` defaults to true. Defining it as null prevents WordPress
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* from changing the global configuration setting. Defining `WP_DEBUG_DISPLAY`
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* as false will force errors to be hidden.
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*
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* When `WP_DEBUG_LOG` is true, errors will be logged to debug.log in the content
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* directory.
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*
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* Errors are never displayed for XML-RPC, REST, and Ajax requests.
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*
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* @since 3.0.0
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* @access private
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*/
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function wp_debug_mode() {
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/**
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* Filters whether to allow the debug mode check to occur.
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*
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* This filter runs before it can be used by plugins. It is designed for
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* non-web run-times. Returning false causes the `WP_DEBUG` and related
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* constants to not be checked and the default php values for errors
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* will be used unless you take care to update them yourself.
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*
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* @since 4.6.0
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*
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* @param bool $enable_debug_mode Whether to enable debug mode checks to occur. Default true.
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*/
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if ( ! apply_filters( 'enable_wp_debug_mode_checks', true ) ) {
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return;
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}
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if ( WP_DEBUG ) {
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error_reporting( E_ALL );
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if ( WP_DEBUG_DISPLAY ) {
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ini_set( 'display_errors', 1 );
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} elseif ( null !== WP_DEBUG_DISPLAY ) {
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ini_set( 'display_errors', 0 );
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}
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if ( WP_DEBUG_LOG ) {
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ini_set( 'log_errors', 1 );
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ini_set( 'error_log', WP_CONTENT_DIR . '/debug.log' );
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}
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} else {
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error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR );
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}
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if ( defined( 'XMLRPC_REQUEST' ) || defined( 'REST_REQUEST' ) || ( defined( 'WP_INSTALLING' ) && WP_INSTALLING ) || wp_doing_ajax() ) {
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@ini_set( 'display_errors', 0 );
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}
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}
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/**
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* Set the location of the language directory.
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*
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* To set directory manually, define the `WP_LANG_DIR` constant
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* in wp-config.php.
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*
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* If the language directory exists within `WP_CONTENT_DIR`, it
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* is used. Otherwise the language directory is assumed to live
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* in `WPINC`.
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*
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* @since 3.0.0
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* @access private
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*/
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function wp_set_lang_dir() {
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if ( ! defined( 'WP_LANG_DIR' ) ) {
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if ( file_exists( WP_CONTENT_DIR . '/languages' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) || ! @is_dir( ABSPATH . WPINC . '/languages' ) ) {
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/**
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* Server path of the language directory.
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*
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* No leading slash, no trailing slash, full path, not relative to ABSPATH
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*
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* @since 2.1.0
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*/
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define( 'WP_LANG_DIR', WP_CONTENT_DIR . '/languages' );
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if ( ! defined( 'LANGDIR' ) ) {
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// Old static relative path maintained for limited backward compatibility - won't work in some cases.
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define( 'LANGDIR', 'wp-content/languages' );
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}
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} else {
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/**
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* Server path of the language directory.
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*
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* No leading slash, no trailing slash, full path, not relative to `ABSPATH`.
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*
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* @since 2.1.0
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*/
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define( 'WP_LANG_DIR', ABSPATH . WPINC . '/languages' );
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if ( ! defined( 'LANGDIR' ) ) {
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// Old relative path maintained for backward compatibility.
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define( 'LANGDIR', WPINC . '/languages' );
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}
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}
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}
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}
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/**
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* Load the database class file and instantiate the `$wpdb` global.
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*
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* @since 2.5.0
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*
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* @global wpdb $wpdb The WordPress database class.
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*/
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function require_wp_db() {
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global $wpdb;
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require_once( ABSPATH . WPINC . '/wp-db.php' );
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if ( file_exists( WP_CONTENT_DIR . '/db.php' ) ) {
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require_once( WP_CONTENT_DIR . '/db.php' );
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}
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if ( isset( $wpdb ) ) {
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return;
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}
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$dbuser = defined( 'DB_USER' ) ? DB_USER : '';
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$dbpassword = defined( 'DB_PASSWORD' ) ? DB_PASSWORD : '';
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$dbname = defined( 'DB_NAME' ) ? DB_NAME : '';
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$dbhost = defined( 'DB_HOST' ) ? DB_HOST : '';
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$wpdb = new wpdb( $dbuser, $dbpassword, $dbname, $dbhost );
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}
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/**
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* Set the database table prefix and the format specifiers for database
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* table columns.
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*
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* Columns not listed here default to `%s`.
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*
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* @since 3.0.0
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* @access private
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*
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* @global wpdb $wpdb The WordPress database class.
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* @global string $table_prefix The database table prefix.
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*/
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function wp_set_wpdb_vars() {
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global $wpdb, $table_prefix;
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if ( ! empty( $wpdb->error ) ) {
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dead_db();
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}
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$wpdb->field_types = array(
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'post_author' => '%d',
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'post_parent' => '%d',
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'menu_order' => '%d',
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'term_id' => '%d',
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'term_group' => '%d',
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'term_taxonomy_id' => '%d',
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'parent' => '%d',
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'count' => '%d',
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'object_id' => '%d',
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'term_order' => '%d',
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'ID' => '%d',
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'comment_ID' => '%d',
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'comment_post_ID' => '%d',
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'comment_parent' => '%d',
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'user_id' => '%d',
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'link_id' => '%d',
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'link_owner' => '%d',
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'link_rating' => '%d',
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'option_id' => '%d',
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'blog_id' => '%d',
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'meta_id' => '%d',
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'post_id' => '%d',
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'user_status' => '%d',
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'umeta_id' => '%d',
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|
'comment_karma' => '%d',
|
|
'comment_count' => '%d',
|
|
// multisite:
|
|
'active' => '%d',
|
|
'cat_id' => '%d',
|
|
'deleted' => '%d',
|
|
'lang_id' => '%d',
|
|
'mature' => '%d',
|
|
'public' => '%d',
|
|
'site_id' => '%d',
|
|
'spam' => '%d',
|
|
);
|
|
|
|
$prefix = $wpdb->set_prefix( $table_prefix );
|
|
|
|
if ( is_wp_error( $prefix ) ) {
|
|
wp_load_translations_early();
|
|
wp_die(
|
|
/* translators: 1: $table_prefix 2: wp-config.php */
|
|
sprintf(
|
|
__( '<strong>ERROR</strong>: %1$s in %2$s can only contain numbers, letters, and underscores.' ),
|
|
'<code>$table_prefix</code>',
|
|
'<code>wp-config.php</code>'
|
|
)
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Toggle `$_wp_using_ext_object_cache` on and off without directly
|
|
* touching global.
|
|
*
|
|
* @since 3.7.0
|
|
*
|
|
* @global bool $_wp_using_ext_object_cache
|
|
*
|
|
* @param bool $using Whether external object cache is being used.
|
|
* @return bool The current 'using' setting.
|
|
*/
|
|
function wp_using_ext_object_cache( $using = null ) {
|
|
global $_wp_using_ext_object_cache;
|
|
$current_using = $_wp_using_ext_object_cache;
|
|
if ( null !== $using ) {
|
|
$_wp_using_ext_object_cache = $using;
|
|
}
|
|
return $current_using;
|
|
}
|
|
|
|
/**
|
|
* Start the WordPress object cache.
|
|
*
|
|
* If an object-cache.php file exists in the wp-content directory,
|
|
* it uses that drop-in as an external object cache.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @global array $wp_filter Stores all of the filters.
|
|
*/
|
|
function wp_start_object_cache() {
|
|
global $wp_filter;
|
|
static $first_init = true;
|
|
|
|
// Only perform the following checks once.
|
|
if ( $first_init ) {
|
|
if ( ! function_exists( 'wp_cache_init' ) ) {
|
|
/*
|
|
* This is the normal situation. First-run of this function. No
|
|
* caching backend has been loaded.
|
|
*
|
|
* We try to load a custom caching backend, and then, if it
|
|
* results in a wp_cache_init() function existing, we note
|
|
* that an external object cache is being used.
|
|
*/
|
|
if ( file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) {
|
|
require_once( WP_CONTENT_DIR . '/object-cache.php' );
|
|
if ( function_exists( 'wp_cache_init' ) ) {
|
|
wp_using_ext_object_cache( true );
|
|
}
|
|
|
|
// Re-initialize any hooks added manually by object-cache.php
|
|
if ( $wp_filter ) {
|
|
$wp_filter = WP_Hook::build_preinitialized_hooks( $wp_filter );
|
|
}
|
|
}
|
|
} elseif ( ! wp_using_ext_object_cache() && file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) {
|
|
/*
|
|
* Sometimes advanced-cache.php can load object-cache.php before
|
|
* this function is run. This breaks the function_exists() check
|
|
* above and can result in wp_using_ext_object_cache() returning
|
|
* false when actually an external cache is in use.
|
|
*/
|
|
wp_using_ext_object_cache( true );
|
|
}
|
|
}
|
|
|
|
if ( ! wp_using_ext_object_cache() ) {
|
|
require_once( ABSPATH . WPINC . '/cache.php' );
|
|
}
|
|
|
|
/*
|
|
* If cache supports reset, reset instead of init if already
|
|
* initialized. Reset signals to the cache that global IDs
|
|
* have changed and it may need to update keys and cleanup caches.
|
|
*/
|
|
if ( ! $first_init && function_exists( 'wp_cache_switch_to_blog' ) ) {
|
|
wp_cache_switch_to_blog( get_current_blog_id() );
|
|
} elseif ( function_exists( 'wp_cache_init' ) ) {
|
|
wp_cache_init();
|
|
}
|
|
|
|
if ( function_exists( 'wp_cache_add_global_groups' ) ) {
|
|
wp_cache_add_global_groups( array( 'users', 'userlogins', 'usermeta', 'user_meta', 'useremail', 'userslugs', 'site-transient', 'site-options', 'blog-lookup', 'blog-details', 'site-details', 'rss', 'global-posts', 'blog-id-cache', 'networks', 'sites' ) );
|
|
wp_cache_add_non_persistent_groups( array( 'counts', 'plugins' ) );
|
|
}
|
|
|
|
$first_init = false;
|
|
}
|
|
|
|
/**
|
|
* Redirect to the installer if WordPress is not installed.
|
|
*
|
|
* Dies with an error message when Multisite is enabled.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*/
|
|
function wp_not_installed() {
|
|
if ( is_multisite() ) {
|
|
if ( ! is_blog_installed() && ! wp_installing() ) {
|
|
nocache_headers();
|
|
|
|
wp_die( __( 'The site you have requested is not installed properly. Please contact the system administrator.' ) );
|
|
}
|
|
} elseif ( ! is_blog_installed() && ! wp_installing() ) {
|
|
nocache_headers();
|
|
|
|
require( ABSPATH . WPINC . '/kses.php' );
|
|
require( ABSPATH . WPINC . '/pluggable.php' );
|
|
require( ABSPATH . WPINC . '/formatting.php' );
|
|
|
|
$link = wp_guess_url() . '/wp-admin/install.php';
|
|
|
|
wp_redirect( $link );
|
|
die();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Retrieve an array of must-use plugin files.
|
|
*
|
|
* The default directory is wp-content/mu-plugins. To change the default
|
|
* directory manually, define `WPMU_PLUGIN_DIR` and `WPMU_PLUGIN_URL`
|
|
* in wp-config.php.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @return array Files to include.
|
|
*/
|
|
function wp_get_mu_plugins() {
|
|
$mu_plugins = array();
|
|
if ( ! is_dir( WPMU_PLUGIN_DIR ) ) {
|
|
return $mu_plugins;
|
|
}
|
|
if ( ! $dh = opendir( WPMU_PLUGIN_DIR ) ) {
|
|
return $mu_plugins;
|
|
}
|
|
while ( ( $plugin = readdir( $dh ) ) !== false ) {
|
|
if ( substr( $plugin, -4 ) == '.php' ) {
|
|
$mu_plugins[] = WPMU_PLUGIN_DIR . '/' . $plugin;
|
|
}
|
|
}
|
|
closedir( $dh );
|
|
sort( $mu_plugins );
|
|
|
|
return $mu_plugins;
|
|
}
|
|
|
|
/**
|
|
* Retrieve an array of active and valid plugin files.
|
|
*
|
|
* While upgrading or installing WordPress, no plugins are returned.
|
|
*
|
|
* The default directory is wp-content/plugins. To change the default
|
|
* directory manually, define `WP_PLUGIN_DIR` and `WP_PLUGIN_URL`
|
|
* in wp-config.php.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @return array Files.
|
|
*/
|
|
function wp_get_active_and_valid_plugins() {
|
|
$plugins = array();
|
|
$active_plugins = (array) get_option( 'active_plugins', array() );
|
|
|
|
// Check for hacks file if the option is enabled
|
|
if ( get_option( 'hack_file' ) && file_exists( ABSPATH . 'my-hacks.php' ) ) {
|
|
_deprecated_file( 'my-hacks.php', '1.5.0' );
|
|
array_unshift( $plugins, ABSPATH . 'my-hacks.php' );
|
|
}
|
|
|
|
if ( empty( $active_plugins ) || wp_installing() ) {
|
|
return $plugins;
|
|
}
|
|
|
|
$network_plugins = is_multisite() ? wp_get_active_network_plugins() : false;
|
|
|
|
foreach ( $active_plugins as $plugin ) {
|
|
if ( ! validate_file( $plugin ) // $plugin must validate as file
|
|
&& '.php' == substr( $plugin, -4 ) // $plugin must end with '.php'
|
|
&& file_exists( WP_PLUGIN_DIR . '/' . $plugin ) // $plugin must exist
|
|
// not already included as a network plugin
|
|
&& ( ! $network_plugins || ! in_array( WP_PLUGIN_DIR . '/' . $plugin, $network_plugins ) )
|
|
) {
|
|
$plugins[] = WP_PLUGIN_DIR . '/' . $plugin;
|
|
}
|
|
}
|
|
return $plugins;
|
|
}
|
|
|
|
/**
|
|
* Set internal encoding.
|
|
*
|
|
* In most cases the default internal encoding is latin1, which is
|
|
* of no use, since we want to use the `mb_` functions for `utf-8` strings.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*/
|
|
function wp_set_internal_encoding() {
|
|
if ( function_exists( 'mb_internal_encoding' ) ) {
|
|
$charset = get_option( 'blog_charset' );
|
|
if ( ! $charset || ! @mb_internal_encoding( $charset ) ) {
|
|
mb_internal_encoding( 'UTF-8' );
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add magic quotes to `$_GET`, `$_POST`, `$_COOKIE`, and `$_SERVER`.
|
|
*
|
|
* Also forces `$_REQUEST` to be `$_GET + $_POST`. If `$_SERVER`,
|
|
* `$_COOKIE`, or `$_ENV` are needed, use those superglobals directly.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*/
|
|
function wp_magic_quotes() {
|
|
// If already slashed, strip.
|
|
if ( get_magic_quotes_gpc() ) {
|
|
$_GET = stripslashes_deep( $_GET );
|
|
$_POST = stripslashes_deep( $_POST );
|
|
$_COOKIE = stripslashes_deep( $_COOKIE );
|
|
}
|
|
|
|
// Escape with wpdb.
|
|
$_GET = add_magic_quotes( $_GET );
|
|
$_POST = add_magic_quotes( $_POST );
|
|
$_COOKIE = add_magic_quotes( $_COOKIE );
|
|
$_SERVER = add_magic_quotes( $_SERVER );
|
|
|
|
// Force REQUEST to be GET + POST.
|
|
$_REQUEST = array_merge( $_GET, $_POST );
|
|
}
|
|
|
|
/**
|
|
* Runs just before PHP shuts down execution.
|
|
*
|
|
* @since 1.2.0
|
|
* @access private
|
|
*/
|
|
function shutdown_action_hook() {
|
|
/**
|
|
* Fires just before PHP shuts down execution.
|
|
*
|
|
* @since 1.2.0
|
|
*/
|
|
do_action( 'shutdown' );
|
|
|
|
wp_cache_close();
|
|
}
|
|
|
|
/**
|
|
* Copy an object.
|
|
*
|
|
* @since 2.7.0
|
|
* @deprecated 3.2.0
|
|
*
|
|
* @param object $object The object to clone.
|
|
* @return object The cloned object.
|
|
*/
|
|
function wp_clone( $object ) {
|
|
// Use parens for clone to accommodate PHP 4. See #17880
|
|
return clone( $object );
|
|
}
|
|
|
|
/**
|
|
* Determines whether the current request is for an administrative interface page.
|
|
*
|
|
* Does not check if the user is an administrator; current_user_can()
|
|
* for checking roles and capabilities.
|
|
*
|
|
* For more information on this and similar theme functions, check out
|
|
* the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
|
|
* Conditional Tags} article in the Theme Developer Handbook.
|
|
*
|
|
* @since 1.5.1
|
|
*
|
|
* @global WP_Screen $current_screen
|
|
*
|
|
* @return bool True if inside WordPress administration interface, false otherwise.
|
|
*/
|
|
function is_admin() {
|
|
if ( isset( $GLOBALS['current_screen'] ) ) {
|
|
return $GLOBALS['current_screen']->in_admin();
|
|
} elseif ( defined( 'WP_ADMIN' ) ) {
|
|
return WP_ADMIN;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Whether the current request is for a site's admininstrative interface.
|
|
*
|
|
* e.g. `/wp-admin/`
|
|
*
|
|
* Does not check if the user is an administrator; current_user_can()
|
|
* for checking roles and capabilities.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @global WP_Screen $current_screen
|
|
*
|
|
* @return bool True if inside WordPress blog administration pages.
|
|
*/
|
|
function is_blog_admin() {
|
|
if ( isset( $GLOBALS['current_screen'] ) ) {
|
|
return $GLOBALS['current_screen']->in_admin( 'site' );
|
|
} elseif ( defined( 'WP_BLOG_ADMIN' ) ) {
|
|
return WP_BLOG_ADMIN;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Whether the current request is for the network administrative interface.
|
|
*
|
|
* e.g. `/wp-admin/network/`
|
|
*
|
|
* Does not check if the user is an administrator; current_user_can()
|
|
* for checking roles and capabilities.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @global WP_Screen $current_screen
|
|
*
|
|
* @return bool True if inside WordPress network administration pages.
|
|
*/
|
|
function is_network_admin() {
|
|
if ( isset( $GLOBALS['current_screen'] ) ) {
|
|
return $GLOBALS['current_screen']->in_admin( 'network' );
|
|
} elseif ( defined( 'WP_NETWORK_ADMIN' ) ) {
|
|
return WP_NETWORK_ADMIN;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Whether the current request is for a user admin screen.
|
|
*
|
|
* e.g. `/wp-admin/user/`
|
|
*
|
|
* Does not inform on whether the user is an admin! Use capability
|
|
* checks to tell if the user should be accessing a section or not
|
|
* current_user_can().
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @global WP_Screen $current_screen
|
|
*
|
|
* @return bool True if inside WordPress user administration pages.
|
|
*/
|
|
function is_user_admin() {
|
|
if ( isset( $GLOBALS['current_screen'] ) ) {
|
|
return $GLOBALS['current_screen']->in_admin( 'user' );
|
|
} elseif ( defined( 'WP_USER_ADMIN' ) ) {
|
|
return WP_USER_ADMIN;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* If Multisite is enabled.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @return bool True if Multisite is enabled, false otherwise.
|
|
*/
|
|
function is_multisite() {
|
|
if ( defined( 'MULTISITE' ) ) {
|
|
return MULTISITE;
|
|
}
|
|
|
|
if ( defined( 'SUBDOMAIN_INSTALL' ) || defined( 'VHOST' ) || defined( 'SUNRISE' ) ) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the current site ID.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @global int $blog_id
|
|
*
|
|
* @return int Site ID.
|
|
*/
|
|
function get_current_blog_id() {
|
|
global $blog_id;
|
|
return absint( $blog_id );
|
|
}
|
|
|
|
/**
|
|
* Retrieves the current network ID.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @return int The ID of the current network.
|
|
*/
|
|
function get_current_network_id() {
|
|
if ( ! is_multisite() ) {
|
|
return 1;
|
|
}
|
|
|
|
$current_network = get_network();
|
|
|
|
if ( ! isset( $current_network->id ) ) {
|
|
return get_main_network_id();
|
|
}
|
|
|
|
return absint( $current_network->id );
|
|
}
|
|
|
|
/**
|
|
* Attempt an early load of translations.
|
|
*
|
|
* Used for errors encountered during the initial loading process, before
|
|
* the locale has been properly detected and loaded.
|
|
*
|
|
* Designed for unusual load sequences (like setup-config.php) or for when
|
|
* the script will then terminate with an error, otherwise there is a risk
|
|
* that a file can be double-included.
|
|
*
|
|
* @since 3.4.0
|
|
* @access private
|
|
*
|
|
* @global WP_Locale $wp_locale The WordPress date and time locale object.
|
|
*
|
|
* @staticvar bool $loaded
|
|
*/
|
|
function wp_load_translations_early() {
|
|
global $wp_locale;
|
|
|
|
static $loaded = false;
|
|
if ( $loaded ) {
|
|
return;
|
|
}
|
|
$loaded = true;
|
|
|
|
if ( function_exists( 'did_action' ) && did_action( 'init' ) ) {
|
|
return;
|
|
}
|
|
|
|
// We need $wp_local_package
|
|
require ABSPATH . WPINC . '/version.php';
|
|
|
|
// Translation and localization
|
|
require_once ABSPATH . WPINC . '/pomo/mo.php';
|
|
require_once ABSPATH . WPINC . '/l10n.php';
|
|
require_once ABSPATH . WPINC . '/class-wp-locale.php';
|
|
require_once ABSPATH . WPINC . '/class-wp-locale-switcher.php';
|
|
|
|
// General libraries
|
|
require_once ABSPATH . WPINC . '/plugin.php';
|
|
|
|
$locales = $locations = array();
|
|
|
|
while ( true ) {
|
|
if ( defined( 'WPLANG' ) ) {
|
|
if ( '' == WPLANG ) {
|
|
break;
|
|
}
|
|
$locales[] = WPLANG;
|
|
}
|
|
|
|
if ( isset( $wp_local_package ) ) {
|
|
$locales[] = $wp_local_package;
|
|
}
|
|
|
|
if ( ! $locales ) {
|
|
break;
|
|
}
|
|
|
|
if ( defined( 'WP_LANG_DIR' ) && @is_dir( WP_LANG_DIR ) ) {
|
|
$locations[] = WP_LANG_DIR;
|
|
}
|
|
|
|
if ( defined( 'WP_CONTENT_DIR' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) ) {
|
|
$locations[] = WP_CONTENT_DIR . '/languages';
|
|
}
|
|
|
|
if ( @is_dir( ABSPATH . 'wp-content/languages' ) ) {
|
|
$locations[] = ABSPATH . 'wp-content/languages';
|
|
}
|
|
|
|
if ( @is_dir( ABSPATH . WPINC . '/languages' ) ) {
|
|
$locations[] = ABSPATH . WPINC . '/languages';
|
|
}
|
|
|
|
if ( ! $locations ) {
|
|
break;
|
|
}
|
|
|
|
$locations = array_unique( $locations );
|
|
|
|
foreach ( $locales as $locale ) {
|
|
foreach ( $locations as $location ) {
|
|
if ( file_exists( $location . '/' . $locale . '.mo' ) ) {
|
|
load_textdomain( 'default', $location . '/' . $locale . '.mo' );
|
|
if ( defined( 'WP_SETUP_CONFIG' ) && file_exists( $location . '/admin-' . $locale . '.mo' ) ) {
|
|
load_textdomain( 'default', $location . '/admin-' . $locale . '.mo' );
|
|
}
|
|
break 2;
|
|
}
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
$wp_locale = new WP_Locale();
|
|
}
|
|
|
|
/**
|
|
* Check or set whether WordPress is in "installation" mode.
|
|
*
|
|
* If the `WP_INSTALLING` constant is defined during the bootstrap, `wp_installing()` will default to `true`.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @staticvar bool $installing
|
|
*
|
|
* @param bool $is_installing Optional. True to set WP into Installing mode, false to turn Installing mode off.
|
|
* Omit this parameter if you only want to fetch the current status.
|
|
* @return bool True if WP is installing, otherwise false. When a `$is_installing` is passed, the function will
|
|
* report whether WP was in installing mode prior to the change to `$is_installing`.
|
|
*/
|
|
function wp_installing( $is_installing = null ) {
|
|
static $installing = null;
|
|
|
|
// Support for the `WP_INSTALLING` constant, defined before WP is loaded.
|
|
if ( is_null( $installing ) ) {
|
|
$installing = defined( 'WP_INSTALLING' ) && WP_INSTALLING;
|
|
}
|
|
|
|
if ( ! is_null( $is_installing ) ) {
|
|
$old_installing = $installing;
|
|
$installing = $is_installing;
|
|
return (bool) $old_installing;
|
|
}
|
|
|
|
return (bool) $installing;
|
|
}
|
|
|
|
/**
|
|
* Determines if SSL is used.
|
|
*
|
|
* @since 2.6.0
|
|
* @since 4.6.0 Moved from functions.php to load.php.
|
|
*
|
|
* @return bool True if SSL, otherwise false.
|
|
*/
|
|
function is_ssl() {
|
|
if ( isset( $_SERVER['HTTPS'] ) ) {
|
|
if ( 'on' == strtolower( $_SERVER['HTTPS'] ) ) {
|
|
return true;
|
|
}
|
|
|
|
if ( '1' == $_SERVER['HTTPS'] ) {
|
|
return true;
|
|
}
|
|
} elseif ( isset( $_SERVER['SERVER_PORT'] ) && ( '443' == $_SERVER['SERVER_PORT'] ) ) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Converts a shorthand byte value to an integer byte value.
|
|
*
|
|
* @since 2.3.0
|
|
* @since 4.6.0 Moved from media.php to load.php.
|
|
*
|
|
* @link https://secure.php.net/manual/en/function.ini-get.php
|
|
* @link https://secure.php.net/manual/en/faq.using.php#faq.using.shorthandbytes
|
|
*
|
|
* @param string $value A (PHP ini) byte value, either shorthand or ordinary.
|
|
* @return int An integer byte value.
|
|
*/
|
|
function wp_convert_hr_to_bytes( $value ) {
|
|
$value = strtolower( trim( $value ) );
|
|
$bytes = (int) $value;
|
|
|
|
if ( false !== strpos( $value, 'g' ) ) {
|
|
$bytes *= GB_IN_BYTES;
|
|
} elseif ( false !== strpos( $value, 'm' ) ) {
|
|
$bytes *= MB_IN_BYTES;
|
|
} elseif ( false !== strpos( $value, 'k' ) ) {
|
|
$bytes *= KB_IN_BYTES;
|
|
}
|
|
|
|
// Deal with large (float) values which run into the maximum integer size.
|
|
return min( $bytes, PHP_INT_MAX );
|
|
}
|
|
|
|
/**
|
|
* Determines whether a PHP ini value is changeable at runtime.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @staticvar array $ini_all
|
|
*
|
|
* @link https://secure.php.net/manual/en/function.ini-get-all.php
|
|
*
|
|
* @param string $setting The name of the ini setting to check.
|
|
* @return bool True if the value is changeable at runtime. False otherwise.
|
|
*/
|
|
function wp_is_ini_value_changeable( $setting ) {
|
|
static $ini_all;
|
|
|
|
if ( ! isset( $ini_all ) ) {
|
|
$ini_all = false;
|
|
// Sometimes `ini_get_all()` is disabled via the `disable_functions` option for "security purposes".
|
|
if ( function_exists( 'ini_get_all' ) ) {
|
|
$ini_all = ini_get_all();
|
|
}
|
|
}
|
|
|
|
// Bit operator to workaround https://bugs.php.net/bug.php?id=44936 which changes access level to 63 in PHP 5.2.6 - 5.2.17.
|
|
if ( isset( $ini_all[ $setting ]['access'] ) && ( INI_ALL === ( $ini_all[ $setting ]['access'] & 7 ) || INI_USER === ( $ini_all[ $setting ]['access'] & 7 ) ) ) {
|
|
return true;
|
|
}
|
|
|
|
// If we were unable to retrieve the details, fail gracefully to assume it's changeable.
|
|
if ( ! is_array( $ini_all ) ) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Determines whether the current request is a WordPress Ajax request.
|
|
*
|
|
* @since 4.7.0
|
|
*
|
|
* @return bool True if it's a WordPress Ajax request, false otherwise.
|
|
*/
|
|
function wp_doing_ajax() {
|
|
/**
|
|
* Filters whether the current request is a WordPress Ajax request.
|
|
*
|
|
* @since 4.7.0
|
|
*
|
|
* @param bool $wp_doing_ajax Whether the current request is a WordPress Ajax request.
|
|
*/
|
|
return apply_filters( 'wp_doing_ajax', defined( 'DOING_AJAX' ) && DOING_AJAX );
|
|
}
|
|
|
|
/**
|
|
* Determines whether the current request is a WordPress cron request.
|
|
*
|
|
* @since 4.8.0
|
|
*
|
|
* @return bool True if it's a WordPress cron request, false otherwise.
|
|
*/
|
|
function wp_doing_cron() {
|
|
/**
|
|
* Filters whether the current request is a WordPress cron request.
|
|
*
|
|
* @since 4.8.0
|
|
*
|
|
* @param bool $wp_doing_cron Whether the current request is a WordPress cron request.
|
|
*/
|
|
return apply_filters( 'wp_doing_cron', defined( 'DOING_CRON' ) && DOING_CRON );
|
|
}
|
|
|
|
/**
|
|
* Check whether variable is a WordPress Error.
|
|
*
|
|
* Returns true if $thing is an object of the WP_Error class.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @param mixed $thing Check if unknown variable is a WP_Error object.
|
|
* @return bool True, if WP_Error. False, if not WP_Error.
|
|
*/
|
|
function is_wp_error( $thing ) {
|
|
return ( $thing instanceof WP_Error );
|
|
}
|
|
|
|
/**
|
|
* Determines whether file modifications are allowed.
|
|
*
|
|
* @since 4.8.0
|
|
*
|
|
* @param string $context The usage context.
|
|
* @return bool True if file modification is allowed, false otherwise.
|
|
*/
|
|
function wp_is_file_mod_allowed( $context ) {
|
|
/**
|
|
* Filters whether file modifications are allowed.
|
|
*
|
|
* @since 4.8.0
|
|
*
|
|
* @param bool $file_mod_allowed Whether file modifications are allowed.
|
|
* @param string $context The usage context.
|
|
*/
|
|
return apply_filters( 'file_mod_allowed', ! defined( 'DISALLOW_FILE_MODS' ) || ! DISALLOW_FILE_MODS, $context );
|
|
}
|
|
|
|
/**
|
|
* Start scraping edited file errors.
|
|
*
|
|
* @since 4.9.0
|
|
*/
|
|
function wp_start_scraping_edited_file_errors() {
|
|
if ( ! isset( $_REQUEST['wp_scrape_key'] ) || ! isset( $_REQUEST['wp_scrape_nonce'] ) ) {
|
|
return;
|
|
}
|
|
$key = substr( sanitize_key( wp_unslash( $_REQUEST['wp_scrape_key'] ) ), 0, 32 );
|
|
$nonce = wp_unslash( $_REQUEST['wp_scrape_nonce'] );
|
|
|
|
if ( get_transient( 'scrape_key_' . $key ) !== $nonce ) {
|
|
echo "###### wp_scraping_result_start:$key ######";
|
|
echo wp_json_encode(
|
|
array(
|
|
'code' => 'scrape_nonce_failure',
|
|
'message' => __( 'Scrape nonce check failed. Please try again.' ),
|
|
)
|
|
);
|
|
echo "###### wp_scraping_result_end:$key ######";
|
|
die();
|
|
}
|
|
register_shutdown_function( 'wp_finalize_scraping_edited_file_errors', $key );
|
|
}
|
|
|
|
/**
|
|
* Finalize scraping for edited file errors.
|
|
*
|
|
* @since 4.9.0
|
|
*
|
|
* @param string $scrape_key Scrape key.
|
|
*/
|
|
function wp_finalize_scraping_edited_file_errors( $scrape_key ) {
|
|
$error = error_get_last();
|
|
echo "\n###### wp_scraping_result_start:$scrape_key ######\n";
|
|
if ( ! empty( $error ) && in_array( $error['type'], array( E_CORE_ERROR, E_COMPILE_ERROR, E_ERROR, E_PARSE, E_USER_ERROR, E_RECOVERABLE_ERROR ), true ) ) {
|
|
$error = str_replace( ABSPATH, '', $error );
|
|
echo wp_json_encode( $error );
|
|
} else {
|
|
echo wp_json_encode( true );
|
|
}
|
|
echo "\n###### wp_scraping_result_end:$scrape_key ######\n";
|
|
}
|