1080 lines
30 KiB
PHP
1080 lines
30 KiB
PHP
<?php
|
|
/**
|
|
* These functions are needed to load WordPress.
|
|
*
|
|
* @internal This file must be parsable by PHP4.
|
|
*
|
|
* @package WordPress
|
|
*/
|
|
|
|
/**
|
|
* Return the HTTP protocol sent by the server.
|
|
*
|
|
* @since 4.4.0
|
|
*
|
|
* @return string The HTTP protocol. Default: HTTP/1.0.
|
|
*/
|
|
function wp_get_server_protocol() {
|
|
$protocol = $_SERVER['SERVER_PROTOCOL'];
|
|
if ( ! in_array( $protocol, array( 'HTTP/1.1', 'HTTP/2', 'HTTP/2.0' ) ) ) {
|
|
$protocol = 'HTTP/1.0';
|
|
}
|
|
return $protocol;
|
|
}
|
|
|
|
/**
|
|
* Turn register globals off.
|
|
*
|
|
* @since 2.1.0
|
|
* @access private
|
|
*/
|
|
function wp_unregister_GLOBALS() {
|
|
if ( !ini_get( 'register_globals' ) )
|
|
return;
|
|
|
|
if ( isset( $_REQUEST['GLOBALS'] ) )
|
|
die( 'GLOBALS overwrite attempt detected' );
|
|
|
|
// Variables that shouldn't be unset
|
|
$no_unset = array( 'GLOBALS', '_GET', '_POST', '_COOKIE', '_REQUEST', '_SERVER', '_ENV', '_FILES', 'table_prefix' );
|
|
|
|
$input = array_merge( $_GET, $_POST, $_COOKIE, $_SERVER, $_ENV, $_FILES, isset( $_SESSION ) && is_array( $_SESSION ) ? $_SESSION : array() );
|
|
foreach ( $input as $k => $v )
|
|
if ( !in_array( $k, $no_unset ) && isset( $GLOBALS[$k] ) ) {
|
|
unset( $GLOBALS[$k] );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Fix `$_SERVER` variables for various setups.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @global string $PHP_SELF The filename of the currently executing script,
|
|
* relative to the document root.
|
|
*/
|
|
function wp_fix_server_vars() {
|
|
global $PHP_SELF;
|
|
|
|
$default_server_values = array(
|
|
'SERVER_SOFTWARE' => '',
|
|
'REQUEST_URI' => '',
|
|
);
|
|
|
|
$_SERVER = array_merge( $default_server_values, $_SERVER );
|
|
|
|
// Fix for IIS when running with PHP ISAPI
|
|
if ( empty( $_SERVER['REQUEST_URI'] ) || ( PHP_SAPI != 'cgi-fcgi' && preg_match( '/^Microsoft-IIS\//', $_SERVER['SERVER_SOFTWARE'] ) ) ) {
|
|
|
|
// IIS Mod-Rewrite
|
|
if ( isset( $_SERVER['HTTP_X_ORIGINAL_URL'] ) ) {
|
|
$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL'];
|
|
}
|
|
// IIS Isapi_Rewrite
|
|
elseif ( isset( $_SERVER['HTTP_X_REWRITE_URL'] ) ) {
|
|
$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_REWRITE_URL'];
|
|
} else {
|
|
// Use ORIG_PATH_INFO if there is no PATH_INFO
|
|
if ( !isset( $_SERVER['PATH_INFO'] ) && isset( $_SERVER['ORIG_PATH_INFO'] ) )
|
|
$_SERVER['PATH_INFO'] = $_SERVER['ORIG_PATH_INFO'];
|
|
|
|
// Some IIS + PHP configurations puts the script-name in the path-info (No need to append it twice)
|
|
if ( isset( $_SERVER['PATH_INFO'] ) ) {
|
|
if ( $_SERVER['PATH_INFO'] == $_SERVER['SCRIPT_NAME'] )
|
|
$_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO'];
|
|
else
|
|
$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . $_SERVER['PATH_INFO'];
|
|
}
|
|
|
|
// Append the query string if it exists and isn't null
|
|
if ( ! empty( $_SERVER['QUERY_STRING'] ) ) {
|
|
$_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
|
|
}
|
|
}
|
|
}
|
|
|
|
// Fix for PHP as CGI hosts that set SCRIPT_FILENAME to something ending in php.cgi for all requests
|
|
if ( isset( $_SERVER['SCRIPT_FILENAME'] ) && ( strpos( $_SERVER['SCRIPT_FILENAME'], 'php.cgi' ) == strlen( $_SERVER['SCRIPT_FILENAME'] ) - 7 ) )
|
|
$_SERVER['SCRIPT_FILENAME'] = $_SERVER['PATH_TRANSLATED'];
|
|
|
|
// Fix for Dreamhost and other PHP as CGI hosts
|
|
if ( strpos( $_SERVER['SCRIPT_NAME'], 'php.cgi' ) !== false )
|
|
unset( $_SERVER['PATH_INFO'] );
|
|
|
|
// Fix empty PHP_SELF
|
|
$PHP_SELF = $_SERVER['PHP_SELF'];
|
|
if ( empty( $PHP_SELF ) )
|
|
$_SERVER['PHP_SELF'] = $PHP_SELF = preg_replace( '/(\?.*)?$/', '', $_SERVER["REQUEST_URI"] );
|
|
}
|
|
|
|
/**
|
|
* Check for the required PHP version, and the MySQL extension or
|
|
* a database drop-in.
|
|
*
|
|
* Dies if requirements are not met.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @global string $required_php_version The required PHP version string.
|
|
* @global string $wp_version The WordPress version string.
|
|
*/
|
|
function wp_check_php_mysql_versions() {
|
|
global $required_php_version, $wp_version;
|
|
$php_version = phpversion();
|
|
|
|
if ( version_compare( $required_php_version, $php_version, '>' ) ) {
|
|
wp_load_translations_early();
|
|
|
|
$protocol = wp_get_server_protocol();
|
|
header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 );
|
|
header( 'Content-Type: text/html; charset=utf-8' );
|
|
die( sprintf( __( 'Your server is running PHP version %1$s but WordPress %2$s requires at least %3$s.' ), $php_version, $wp_version, $required_php_version ) );
|
|
}
|
|
|
|
if ( ! extension_loaded( 'mysql' ) && ! extension_loaded( 'mysqli' ) && ! extension_loaded( 'mysqlnd' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' ) ) {
|
|
wp_load_translations_early();
|
|
|
|
$protocol = wp_get_server_protocol();
|
|
header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 );
|
|
header( 'Content-Type: text/html; charset=utf-8' );
|
|
die( __( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Don't load all of WordPress when handling a favicon.ico request.
|
|
*
|
|
* Instead, send the headers for a zero-length favicon and bail.
|
|
*
|
|
* @since 3.0.0
|
|
*/
|
|
function wp_favicon_request() {
|
|
if ( '/favicon.ico' == $_SERVER['REQUEST_URI'] ) {
|
|
header('Content-Type: image/vnd.microsoft.icon');
|
|
exit;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Die with a maintenance message when conditions are met.
|
|
*
|
|
* Checks for a file in the WordPress root directory named ".maintenance".
|
|
* This file will contain the variable $upgrading, set to the time the file
|
|
* was created. If the file was created less than 10 minutes ago, WordPress
|
|
* enters maintenance mode and displays a message.
|
|
*
|
|
* The default message can be replaced by using a drop-in (maintenance.php in
|
|
* the wp-content directory).
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @global int $upgrading the unix timestamp marking when upgrading WordPress began.
|
|
*/
|
|
function wp_maintenance() {
|
|
if ( ! file_exists( ABSPATH . '.maintenance' ) || wp_installing() )
|
|
return;
|
|
|
|
global $upgrading;
|
|
|
|
include( ABSPATH . '.maintenance' );
|
|
// If the $upgrading timestamp is older than 10 minutes, don't die.
|
|
if ( ( time() - $upgrading ) >= 600 )
|
|
return;
|
|
|
|
/**
|
|
* Filters whether to enable maintenance mode.
|
|
*
|
|
* This filter runs before it can be used by plugins. It is designed for
|
|
* non-web runtimes. If this filter returns true, maintenance mode will be
|
|
* active and the request will end. If false, the request will be allowed to
|
|
* continue processing even if maintenance mode should be active.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @param bool $enable_checks Whether to enable maintenance mode. Default true.
|
|
* @param int $upgrading The timestamp set in the .maintenance file.
|
|
*/
|
|
if ( ! apply_filters( 'enable_maintenance_mode', true, $upgrading ) ) {
|
|
return;
|
|
}
|
|
|
|
if ( file_exists( WP_CONTENT_DIR . '/maintenance.php' ) ) {
|
|
require_once( WP_CONTENT_DIR . '/maintenance.php' );
|
|
die();
|
|
}
|
|
|
|
wp_load_translations_early();
|
|
|
|
$protocol = wp_get_server_protocol();
|
|
header( "$protocol 503 Service Unavailable", true, 503 );
|
|
header( 'Content-Type: text/html; charset=utf-8' );
|
|
header( 'Retry-After: 600' );
|
|
?>
|
|
<!DOCTYPE html>
|
|
<html xmlns="http://www.w3.org/1999/xhtml"<?php if ( is_rtl() ) echo ' dir="rtl"'; ?>>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<title><?php _e( 'Maintenance' ); ?></title>
|
|
|
|
</head>
|
|
<body>
|
|
<h1><?php _e( 'Briefly unavailable for scheduled maintenance. Check back in a minute.' ); ?></h1>
|
|
</body>
|
|
</html>
|
|
<?php
|
|
die();
|
|
}
|
|
|
|
/**
|
|
* Start the WordPress micro-timer.
|
|
*
|
|
* @since 0.71
|
|
* @access private
|
|
*
|
|
* @global float $timestart Unix timestamp set at the beginning of the page load.
|
|
* @see timer_stop()
|
|
*
|
|
* @return bool Always returns true.
|
|
*/
|
|
function timer_start() {
|
|
global $timestart;
|
|
$timestart = microtime( true );
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Retrieve or display the time from the page start to when function is called.
|
|
*
|
|
* @since 0.71
|
|
*
|
|
* @global float $timestart Seconds from when timer_start() is called.
|
|
* @global float $timeend Seconds from when function is called.
|
|
*
|
|
* @param int|bool $display Whether to echo or return the results. Accepts 0|false for return,
|
|
* 1|true for echo. Default 0|false.
|
|
* @param int $precision The number of digits from the right of the decimal to display.
|
|
* Default 3.
|
|
* @return string The "second.microsecond" finished time calculation. The number is formatted
|
|
* for human consumption, both localized and rounded.
|
|
*/
|
|
function timer_stop( $display = 0, $precision = 3 ) {
|
|
global $timestart, $timeend;
|
|
$timeend = microtime( true );
|
|
$timetotal = $timeend - $timestart;
|
|
$r = ( function_exists( 'number_format_i18n' ) ) ? number_format_i18n( $timetotal, $precision ) : number_format( $timetotal, $precision );
|
|
if ( $display )
|
|
echo $r;
|
|
return $r;
|
|
}
|
|
|
|
/**
|
|
* Set PHP error reporting based on WordPress debug settings.
|
|
*
|
|
* Uses three constants: `WP_DEBUG`, `WP_DEBUG_DISPLAY`, and `WP_DEBUG_LOG`.
|
|
* All three can be defined in wp-config.php. By default, `WP_DEBUG` and
|
|
* `WP_DEBUG_LOG` are set to false, and `WP_DEBUG_DISPLAY` is set to true.
|
|
*
|
|
* When `WP_DEBUG` is true, all PHP notices are reported. WordPress will also
|
|
* display internal notices: when a deprecated WordPress function, function
|
|
* argument, or file is used. Deprecated code may be removed from a later
|
|
* version.
|
|
*
|
|
* It is strongly recommended that plugin and theme developers use `WP_DEBUG`
|
|
* in their development environments.
|
|
*
|
|
* `WP_DEBUG_DISPLAY` and `WP_DEBUG_LOG` perform no function unless `WP_DEBUG`
|
|
* is true.
|
|
*
|
|
* When `WP_DEBUG_DISPLAY` is true, WordPress will force errors to be displayed.
|
|
* `WP_DEBUG_DISPLAY` defaults to true. Defining it as null prevents WordPress
|
|
* from changing the global configuration setting. Defining `WP_DEBUG_DISPLAY`
|
|
* as false will force errors to be hidden.
|
|
*
|
|
* When `WP_DEBUG_LOG` is true, errors will be logged to debug.log in the content
|
|
* directory.
|
|
*
|
|
* Errors are never displayed for XML-RPC, REST, and Ajax requests.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*/
|
|
function wp_debug_mode() {
|
|
/**
|
|
* Filters whether to allow the debug mode check to occur.
|
|
*
|
|
* This filter runs before it can be used by plugins. It is designed for
|
|
* non-web run-times. Returning false causes the `WP_DEBUG` and related
|
|
* constants to not be checked and the default php values for errors
|
|
* will be used unless you take care to update them yourself.
|
|
*
|
|
* @since 4.6.0
|
|
*
|
|
* @param bool $enable_debug_mode Whether to enable debug mode checks to occur. Default true.
|
|
*/
|
|
if ( ! apply_filters( 'enable_wp_debug_mode_checks', true ) ){
|
|
return;
|
|
}
|
|
|
|
if ( WP_DEBUG ) {
|
|
error_reporting( E_ALL );
|
|
|
|
if ( WP_DEBUG_DISPLAY )
|
|
ini_set( 'display_errors', 1 );
|
|
elseif ( null !== WP_DEBUG_DISPLAY )
|
|
ini_set( 'display_errors', 0 );
|
|
|
|
if ( WP_DEBUG_LOG ) {
|
|
ini_set( 'log_errors', 1 );
|
|
ini_set( 'error_log', WP_CONTENT_DIR . '/debug.log' );
|
|
}
|
|
} else {
|
|
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 );
|
|
}
|
|
|
|
if ( defined( 'XMLRPC_REQUEST' ) || defined( 'REST_REQUEST' ) || wp_doing_ajax() ) {
|
|
@ini_set( 'display_errors', 0 );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the location of the language directory.
|
|
*
|
|
* To set directory manually, define the `WP_LANG_DIR` constant
|
|
* in wp-config.php.
|
|
*
|
|
* If the language directory exists within `WP_CONTENT_DIR`, it
|
|
* is used. Otherwise the language directory is assumed to live
|
|
* in `WPINC`.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*/
|
|
function wp_set_lang_dir() {
|
|
if ( !defined( 'WP_LANG_DIR' ) ) {
|
|
if ( file_exists( WP_CONTENT_DIR . '/languages' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) || !@is_dir(ABSPATH . WPINC . '/languages') ) {
|
|
/**
|
|
* Server path of the language directory.
|
|
*
|
|
* No leading slash, no trailing slash, full path, not relative to ABSPATH
|
|
*
|
|
* @since 2.1.0
|
|
*/
|
|
define( 'WP_LANG_DIR', WP_CONTENT_DIR . '/languages' );
|
|
if ( !defined( 'LANGDIR' ) ) {
|
|
// Old static relative path maintained for limited backward compatibility - won't work in some cases.
|
|
define( 'LANGDIR', 'wp-content/languages' );
|
|
}
|
|
} else {
|
|
/**
|
|
* Server path of the language directory.
|
|
*
|
|
* No leading slash, no trailing slash, full path, not relative to `ABSPATH`.
|
|
*
|
|
* @since 2.1.0
|
|
*/
|
|
define( 'WP_LANG_DIR', ABSPATH . WPINC . '/languages' );
|
|
if ( !defined( 'LANGDIR' ) ) {
|
|
// Old relative path maintained for backward compatibility.
|
|
define( 'LANGDIR', WPINC . '/languages' );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Load the database class file and instantiate the `$wpdb` global.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @global wpdb $wpdb The WordPress database class.
|
|
*/
|
|
function require_wp_db() {
|
|
global $wpdb;
|
|
|
|
if ( file_exists( WP_CONTENT_DIR . '/db.php' ) )
|
|
require_once( WP_CONTENT_DIR . '/db.php' );
|
|
|
|
if ( isset( $wpdb ) ) {
|
|
return;
|
|
}
|
|
|
|
$wpdb = new wpdb( DB_USER, DB_PASSWORD, DB_NAME, DB_HOST );
|
|
}
|
|
|
|
/**
|
|
* Set the database table prefix and the format specifiers for database
|
|
* table columns.
|
|
*
|
|
* Columns not listed here default to `%s`.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @global wpdb $wpdb The WordPress database class.
|
|
* @global string $table_prefix The database table prefix.
|
|
*/
|
|
function wp_set_wpdb_vars() {
|
|
global $wpdb, $table_prefix;
|
|
if ( !empty( $wpdb->error ) )
|
|
dead_db();
|
|
|
|
$wpdb->field_types = array( 'post_author' => '%d', 'post_parent' => '%d', 'menu_order' => '%d', 'term_id' => '%d', 'term_group' => '%d', 'term_taxonomy_id' => '%d',
|
|
'parent' => '%d', 'count' => '%d','object_id' => '%d', 'term_order' => '%d', 'ID' => '%d', 'comment_ID' => '%d', 'comment_post_ID' => '%d', 'comment_parent' => '%d',
|
|
'user_id' => '%d', 'link_id' => '%d', 'link_owner' => '%d', 'link_rating' => '%d', 'option_id' => '%d', 'blog_id' => '%d', 'meta_id' => '%d', 'post_id' => '%d',
|
|
'user_status' => '%d', 'umeta_id' => '%d', '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 int $blog_id Blog ID.
|
|
*/
|
|
function wp_start_object_cache() {
|
|
global $blog_id;
|
|
|
|
$first_init = false;
|
|
if ( ! function_exists( 'wp_cache_init' ) ) {
|
|
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 );
|
|
}
|
|
|
|
$first_init = true;
|
|
} elseif ( ! wp_using_ext_object_cache() && file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) {
|
|
/*
|
|
* Sometimes advanced-cache.php can load object-cache.php before
|
|
* it is loaded here. This breaks the function_exists check above
|
|
* and can result in `$_wp_using_ext_object_cache` being set
|
|
* incorrectly. Double check if an external cache exists.
|
|
*/
|
|
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( $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', 'site-lookup', 'blog-lookup', 'blog-details', 'site-details', 'rss', 'global-posts', 'blog-id-cache', 'networks', 'sites' ) );
|
|
wp_cache_add_non_persistent_groups( array( 'counts', 'plugins' ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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 );
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* @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
|
|
*
|
|
* @global WP_Network $current_site The current network.
|
|
*
|
|
* @return int The ID of the current network.
|
|
*/
|
|
function get_current_network_id() {
|
|
if ( ! is_multisite() ) {
|
|
return 1;
|
|
}
|
|
|
|
$current_site = get_current_site();
|
|
|
|
if ( ! isset( $current_site->id ) ) {
|
|
return get_main_network_id();
|
|
}
|
|
|
|
return absint( $current_site->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 string $text_direction
|
|
* @global WP_Locale $wp_locale The WordPress date and time locale object.
|
|
*
|
|
* @staticvar bool $loaded
|
|
*/
|
|
function wp_load_translations_early() {
|
|
global $text_direction, $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 . '/locale.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
|
|
*
|
|
* @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 = 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;
|
|
}
|
|
|
|
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() {
|
|
/**
|
|
* Filter 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 );
|
|
}
|
|
|
|
/**
|
|
* 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 );
|
|
}
|
|
|
|
/**
|
|
* Get the current network.
|
|
*
|
|
* Returns an object containing the 'id', 'domain', 'path', and 'site_name'
|
|
* properties of the network being viewed.
|
|
*
|
|
* @see wpmu_current_site()
|
|
*
|
|
* @since MU
|
|
*
|
|
* @global WP_Network $current_site
|
|
*
|
|
* @return WP_Network
|
|
*/
|
|
function get_current_site() {
|
|
global $current_site;
|
|
return $current_site;
|
|
}
|