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load.php
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load.php
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<?php
/**
* These functions are needed to load WordPress.
*
* @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 = isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : '';
if ( ! in_array( $protocol, array( 'HTTP/1.1', 'HTTP/2', 'HTTP/2.0' ), true ) ) {
$protocol = 'HTTP/1.0';
}
return $protocol;
}
/**
* Fix `$_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'] ) || ( 'cgi-fcgi' !== PHP_SAPI && preg_match( '/^Microsoft-IIS\//', $_SERVER['SERVER_SOFTWARE'] ) ) ) {
if ( isset( $_SERVER['HTTP_X_ORIGINAL_URL'] ) ) {
// IIS Mod-Rewrite.
$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL'];
} elseif ( isset( $_SERVER['HTTP_X_REWRITE_URL'] ) ) {
// IIS Isapi_Rewrite.
$_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 put 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 ) ) {
$_SERVER['PHP_SELF'] = preg_replace( '/(\?.*)?$/', '', $_SERVER['REQUEST_URI'] );
$PHP_SELF = $_SERVER['PHP_SELF'];
}
wp_populate_basic_auth_from_authorization_header();
}
/**
* Populates the Basic Auth server details from the Authorization header.
*
* Some servers running in CGI or FastCGI mode don't pass the Authorization
* header on to WordPress. If it's been rewritten to the `HTTP_AUTHORIZATION` header,
* fill in the proper $_SERVER variables instead.
*
* @since 5.6.0
*/
function wp_populate_basic_auth_from_authorization_header() {
// If we don't have anything to pull from, return early.
if ( ! isset( $_SERVER['HTTP_AUTHORIZATION'] ) && ! isset( $_SERVER['REDIRECT_HTTP_AUTHORIZATION'] ) ) {
return;
}
// If either PHP_AUTH key is already set, do nothing.
if ( isset( $_SERVER['PHP_AUTH_USER'] ) || isset( $_SERVER['PHP_AUTH_PW'] ) ) {
return;
}
// From our prior conditional, one of these must be set.
$header = isset( $_SERVER['HTTP_AUTHORIZATION'] ) ? $_SERVER['HTTP_AUTHORIZATION'] : $_SERVER['REDIRECT_HTTP_AUTHORIZATION'];
// Test to make sure the pattern matches expected.
if ( ! preg_match( '%^Basic [a-z\d/+]*={0,2}$%i', $header ) ) {
return;
}
// Removing `Basic ` the token would start six characters in.
$token = substr( $header, 6 );
$userpass = base64_decode( $token );
list( $user, $pass ) = explode( ':', $userpass );
// Now shove them in the proper keys where we're expecting later on.
$_SERVER['PHP_AUTH_USER'] = $user;
$_SERVER['PHP_AUTH_PW'] = $pass;
}
/**
* 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, '>' ) ) {
$protocol = wp_get_server_protocol();
header( sprintf( '%s 500 Internal Server Error', $protocol ), true, 500 );
header( 'Content-Type: text/html; charset=utf-8' );
printf( 'Your server is running PHP version %1$s but WordPress %2$s requires at least %3$s.', $php_version, $wp_version, $required_php_version );
exit( 1 );
}
if ( ! extension_loaded( 'mysql' ) && ! extension_loaded( 'mysqli' ) && ! extension_loaded( 'mysqlnd' )
// This runs before default constants are defined, so we can't assume WP_CONTENT_DIR is set yet.
&& ( defined( 'WP_CONTENT_DIR' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' )
|| ! file_exists( ABSPATH . 'wp-content/db.php' ) )
) {
require_once ABSPATH . WPINC . '/functions.php';
wp_load_translations_early();
$args = array(
'exit' => false,
'code' => 'mysql_not_found',
);
wp_die(
__( 'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.' ),
__( 'Requirements Not Met' ),
$args
);
exit( 1 );
}
}
/**
* Retrieves the current environment type.
*
* The type can be set via the `WP_ENVIRONMENT_TYPE` global system variable,
* or a constant of the same name.
*
* Possible values are 'local', 'development', 'staging', and 'production'.
* If not set, the type defaults to 'production'.
*
* @since 5.5.0
* @since 5.5.1 Added the 'local' type.
* @since 5.5.1 Removed the ability to alter the list of types.
*
* @return string The current environment type.
*/
function wp_get_environment_type() {
static $current_env = '';
if ( $current_env ) {
return $current_env;
}
$wp_environments = array(
'local',
'development',
'staging',
'production',
);
// Add a note about the deprecated WP_ENVIRONMENT_TYPES constant.
if ( defined( 'WP_ENVIRONMENT_TYPES' ) && function_exists( '_deprecated_argument' ) ) {
if ( function_exists( '__' ) ) {
/* translators: %s: WP_ENVIRONMENT_TYPES */
$message = sprintf( __( 'The %s constant is no longer supported.' ), 'WP_ENVIRONMENT_TYPES' );
} else {
$message = sprintf( 'The %s constant is no longer supported.', 'WP_ENVIRONMENT_TYPES' );
}
_deprecated_argument(
'define()',
'5.5.1',
$message
);
}
// Check if the environment variable has been set, if `getenv` is available on the system.
if ( function_exists( 'getenv' ) ) {
$has_env = getenv( 'WP_ENVIRONMENT_TYPE' );
if ( false !== $has_env ) {
$current_env = $has_env;
}
}
// Fetch the environment from a constant, this overrides the global system variable.
if ( defined( 'WP_ENVIRONMENT_TYPE' ) ) {
$current_env = WP_ENVIRONMENT_TYPE;
}
// Make sure the environment is an allowed one, and not accidentally set to an invalid value.
if ( ! in_array( $current_env, $wp_environments, true ) ) {
$current_env = 'production';
}
return $current_env;
}
/**
* 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
* @deprecated 5.4.0 Deprecated in favor of do_favicon().
*/
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.
*
* The default message can be replaced by using a drop-in (maintenance.php in
* the wp-content directory).
*
* @since 3.0.0
* @access private
*/
function wp_maintenance() {
// Return if maintenance mode is disabled.
if ( ! wp_is_maintenance_mode() ) {
return;
}
if ( file_exists( WP_CONTENT_DIR . '/maintenance.php' ) ) {
require_once WP_CONTENT_DIR . '/maintenance.php';
die();
}
require_once ABSPATH . WPINC . '/functions.php';
wp_load_translations_early();
header( 'Retry-After: 600' );
wp_die(
__( 'Briefly unavailable for scheduled maintenance. Check back in a minute.' ),
__( 'Maintenance' ),
503
);
}
/**
* Check if maintenance mode is enabled.
*
* 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
* is in maintenance mode.
*
* @since 5.5.0
*
* @global int $upgrading The Unix timestamp marking when upgrading WordPress began.
*
* @return bool True if maintenance mode is enabled, false otherwise.
*/
function wp_is_maintenance_mode() {
global $upgrading;
if ( ! file_exists( ABSPATH . '.maintenance' ) || wp_installing() ) {
return false;
}
require ABSPATH . '.maintenance';
// If the $upgrading timestamp is older than 10 minutes, consider maintenance over.
if ( ( time() - $upgrading ) >= 10 * MINUTE_IN_SECONDS ) {
return false;
}
/**
* 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 false;
}
return true;
}
/**
* 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 $r;
}
/**
* Set PHP error reporting based on WordPress debug settings.
*
* Uses three constants: `WP_DEBUG`, `WP_DEBUG_DISPLAY`, and `WP_DEBUG_LOG`.
* All three can be defined in wp-config.php. By default, `WP_DEBUG` and
* `WP_DEBUG_LOG` are set to false, and `WP_DEBUG_DISPLAY` is set to true.
*
* When `WP_DEBUG` is true, all PHP notices are reported. WordPress will also
* display internal notices: when a deprecated WordPress function, function
* argument, or file is used. Deprecated code may be removed from a later
* version.
*
* It is strongly recommended that plugin and theme developers use `WP_DEBUG`
* in their development environments.
*
* `WP_DEBUG_DISPLAY` and `WP_DEBUG_LOG` perform no function unless `WP_DEBUG`
* is true.
*
* When `WP_DEBUG_DISPLAY` is true, WordPress will force errors to be displayed.
* `WP_DEBUG_DISPLAY` defaults to true. Defining it as null prevents WordPress
* from changing the global configuration setting. Defining `WP_DEBUG_DISPLAY`
* as false will force errors to be hidden.
*
* When `WP_DEBUG_LOG` is true, errors will be logged to `wp-content/debug.log`.
* When `WP_DEBUG_LOG` is a valid path, errors will be logged to the specified file.
*
* Errors are never displayed for XML-RPC, REST, and Ajax requests.
*
* @since 3.0.0
* @since 5.1.0 `WP_DEBUG_LOG` can be a file path.
* @access private
*/
function wp_debug_mode() {
/**
* Filters whether to allow the debug mode check to occur.
*
* This filter runs before it can be used by plugins. It is designed for
* non-web run-times. Returning false causes the `WP_DEBUG` and related
* constants to not be checked and the default PHP values for errors
* will be used unless you take care to update them yourself.
*
* To use this filter you must define a `$wp_filter` global before
* WordPress loads, usually in `wp-config.php`.
*
* Example:
*
* $GLOBALS['wp_filter'] = array(
* 'enable_wp_debug_mode_checks' => array(
* 10 => array(
* array(
* 'accepted_args' => 0,
* 'function' => function() {
* return false;
* },
* ),
* ),
* ),
* );
*
* @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 ( in_array( strtolower( (string) WP_DEBUG_LOG ), array( 'true', '1' ), true ) ) {
$log_path = WP_CONTENT_DIR . '/debug.log';
} elseif ( is_string( WP_DEBUG_LOG ) ) {
$log_path = WP_DEBUG_LOG;
} else {
$log_path = false;
}
if ( $log_path ) {
ini_set( 'log_errors', 1 );
ini_set( 'error_log', $log_path );
}
} else {
error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR );
}
if ( defined( 'XMLRPC_REQUEST' ) || defined( 'REST_REQUEST' ) || ( defined( 'WP_INSTALLING' ) && WP_INSTALLING ) || wp_doing_ajax() || wp_is_json_request() ) {
ini_set( 'display_errors', 0 );
}
}
/**
* Set the location of the language directory.
*
* To set directory manually, define the `WP_LANG_DIR` constant
* in wp-config.php.
*
* If the language directory exists within `WP_CONTENT_DIR`, it
* is used. Otherwise the language directory is assumed to live
* in `WPINC`.
*
* @since 3.0.0
* @access private
*/
function wp_set_lang_dir() {
if ( ! defined( 'WP_LANG_DIR' ) ) {
if ( file_exists( WP_CONTENT_DIR . '/languages' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) || ! @is_dir( ABSPATH . WPINC . '/languages' ) ) {
/**
* Server path of the language directory.
*
* No leading slash, no trailing slash, full path, not relative to ABSPATH
*
* @since 2.1.0
*/
define( 'WP_LANG_DIR', WP_CONTENT_DIR . '/languages' );
if ( ! defined( 'LANGDIR' ) ) {
// Old static relative path maintained for limited backward compatibility - won't work in some cases.
define( 'LANGDIR', 'wp-content/languages' );
}
} else {
/**
* Server path of the language directory.
*
* No leading slash, no trailing slash, full path, not relative to `ABSPATH`.
*
* @since 2.1.0
*/
define( 'WP_LANG_DIR', ABSPATH . WPINC . '/languages' );
if ( ! defined( 'LANGDIR' ) ) {
// Old relative path maintained for backward compatibility.
define( 'LANGDIR', WPINC . '/languages' );
}
}
}
}
/**
* Load the database class file and instantiate the `$wpdb` global.
*
* @since 2.5.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function require_wp_db() {
global $wpdb;
require_once ABSPATH . WPINC . '/wp-db.php';
if ( file_exists( WP_CONTENT_DIR . '/db.php' ) ) {
require_once WP_CONTENT_DIR . '/db.php';
}
if ( isset( $wpdb ) ) {
return;
}
$dbuser = defined( 'DB_USER' ) ? DB_USER : '';
$dbpassword = defined( 'DB_PASSWORD' ) ? DB_PASSWORD : '';
$dbname = defined( 'DB_NAME' ) ? DB_NAME : '';
$dbhost = defined( 'DB_HOST' ) ? DB_HOST : '';
$wpdb = new wpdb( $dbuser, $dbpassword, $dbname, $dbhost );
}
/**
* 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 WordPress database abstraction object.
* @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(
sprintf(
/* translators: 1: $table_prefix, 2: wp-config.php */
__( '<strong>Error</strong>: %1$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';
}
require_once ABSPATH . WPINC . '/cache-compat.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', 'blog_meta' ) );
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';
$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 string[] Array of absolute paths of files to include.
*/
function wp_get_mu_plugins() {
$mu_plugins = array();
if ( ! is_dir( WPMU_PLUGIN_DIR ) ) {
return $mu_plugins;
}
$dh = opendir( WPMU_PLUGIN_DIR );
if ( ! $dh ) {
return $mu_plugins;
}
while ( ( $plugin = readdir( $dh ) ) !== false ) {
if ( '.php' === substr( $plugin, -4 ) ) {
$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 string[] Array of paths to plugin files relative to the plugins directory.
*/
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, true ) )
) {
$plugins[] = WP_PLUGIN_DIR . '/' . $plugin;
}
}
/*
* Remove plugins from the list of active plugins when we're on an endpoint
* that should be protected against WSODs and the plugin is paused.
*/
if ( wp_is_recovery_mode() ) {
$plugins = wp_skip_paused_plugins( $plugins );
}
return $plugins;
}
/**
* Filters a given list of plugins, removing any paused plugins from it.
*
* @since 5.2.0
*
* @param string[] $plugins Array of absolute plugin main file paths.
* @return string[] Filtered array of plugins, without any paused plugins.
*/
function wp_skip_paused_plugins( array $plugins ) {
$paused_plugins = wp_paused_plugins()->get_all();
if ( empty( $paused_plugins ) ) {
return $plugins;
}
foreach ( $plugins as $index => $plugin ) {
list( $plugin ) = explode( '/', plugin_basename( $plugin ) );
if ( array_key_exists( $plugin, $paused_plugins ) ) {
unset( $plugins[ $index ] );
// Store list of paused plugins for displaying an admin notice.
$GLOBALS['_paused_plugins'][ $plugin ] = $paused_plugins[ $plugin ];
}
}
return $plugins;
}
/**
* Retrieves an array of active and valid themes.
*
* While upgrading or installing WordPress, no themes are returned.
*
* @since 5.1.0
* @access private
*
* @return string[] Array of absolute paths to theme directories.
*/
function wp_get_active_and_valid_themes() {
global $pagenow;
$themes = array();
if ( wp_installing() && 'wp-activate.php' !== $pagenow ) {
return $themes;
}
if ( TEMPLATEPATH !== STYLESHEETPATH ) {
$themes[] = STYLESHEETPATH;
}
$themes[] = TEMPLATEPATH;
/*
* Remove themes from the list of active themes when we're on an endpoint
* that should be protected against WSODs and the theme is paused.
*/
if ( wp_is_recovery_mode() ) {
$themes = wp_skip_paused_themes( $themes );
// If no active and valid themes exist, skip loading themes.
if ( empty( $themes ) ) {
add_filter( 'wp_using_themes', '__return_false' );
}
}
return $themes;
}
/**
* Filters a given list of themes, removing any paused themes from it.
*
* @since 5.2.0
*
* @param string[] $themes Array of absolute theme directory paths.
* @return string[] Filtered array of absolute paths to themes, without any paused themes.
*/
function wp_skip_paused_themes( array $themes ) {
$paused_themes = wp_paused_themes()->get_all();
if ( empty( $paused_themes ) ) {
return $themes;
}
foreach ( $themes as $index => $theme ) {
$theme = basename( $theme );
if ( array_key_exists( $theme, $paused_themes ) ) {
unset( $themes[ $index ] );
// Store list of paused themes for displaying an admin notice.
$GLOBALS['_paused_themes'][ $theme ] = $paused_themes[ $theme ];
}
}
return $themes;
}
/**
* Is WordPress in Recovery Mode.
*
* In this mode, plugins or themes that cause WSODs will be paused.
*
* @since 5.2.0
*
* @return bool
*/
function wp_is_recovery_mode() {
return wp_recovery_mode()->is_active();
}
/**
* Determines whether we are currently on an endpoint that should be protected against WSODs.
*
* @since 5.2.0
*
* @global string $pagenow
*
* @return bool True if the current endpoint should be protected.
*/
function is_protected_endpoint() {
// Protect login pages.
if ( isset( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] ) {
return true;
}
// Protect the admin backend.
if ( is_admin() && ! wp_doing_ajax() ) {
return true;
}
// Protect Ajax actions that could help resolve a fatal error should be available.
if ( is_protected_ajax_action() ) {
return true;
}
/**
* Filters whether the current request is against a protected endpoint.
*
* This filter is only fired when an endpoint is requested which is not already protected by
* WordPress core. As such, it exclusively allows providing further protected endpoints in
* addition to the admin backend, login pages and protected Ajax actions.
*
* @since 5.2.0
*
* @param bool $is_protected_endpoint Whether the currently requested endpoint is protected.
* Default false.
*/
return (bool) apply_filters( 'is_protected_endpoint', false );
}
/**
* Determines whether we are currently handling an Ajax action that should be protected against WSODs.
*
* @since 5.2.0
*
* @return bool True if the current Ajax action should be protected.
*/
function is_protected_ajax_action() {
if ( ! wp_doing_ajax() ) {
return false;
}
if ( ! isset( $_REQUEST['action'] ) ) {
return false;
}
$actions_to_protect = array(
'edit-theme-plugin-file', // Saving changes in the core code editor.
'heartbeat', // Keep the heart beating.
'install-plugin', // Installing a new plugin.
'install-theme', // Installing a new theme.
'search-plugins', // Searching in the list of plugins.
'search-install-plugins', // Searching for a plugin in the plugin install screen.
'update-plugin', // Update an existing plugin.
'update-theme', // Update an existing theme.