WordPress/wp-includes/load.php

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<?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() {
Use `wp_installing()` instead of `WP_INSTALLING` constant. The `WP_INSTALLING` constant is a flag that WordPress sets in a number of places, telling the system that options should be fetched directly from the database instead of from the cache, that WP should not ping wordpress.org for updates, that the normal "not installed" checks should be bypassed, and so on. A constant is generally necessary for this purpose, because the flag is typically set before the WP bootstrap, meaning that WP functions are not yet available. However, it is possible - notably, during `wpmu_create_blog()` - for the "installing" flag to be set after WP has already loaded. In these cases, `WP_INSTALLING` would be set for the remainder of the process, since there's no way to change a constant once it's defined. This, in turn, polluted later function calls that ought to have been outside the scope of site creation, particularly the non-caching of option data. The problem was particularly evident in the case of the automated tests, where `WP_INSTALLING` was set the first time a site was created, and remained set for the rest of the suite. The new `wp_installing()` function allows developers to fetch the current installation status (when called without any arguments) or to set the installation status (when called with a boolean `true` or `false`). Use of the `WP_INSTALLING` constant is still supported; `wp_installing()` will default to `true` if the constant is defined during the bootstrap. Props boonebgorges, jeremyfelt. See #31130. Built from https://develop.svn.wordpress.org/trunk@34828 git-svn-id: http://core.svn.wordpress.org/trunk@34793 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2015-10-05 17:06:28 +02:00
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;
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() {
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' ) || ( defined( 'DOING_AJAX' ) && 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;
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;
$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', 'rss', 'global-posts', 'blog-id-cache', 'networks', 'sites' ) );
wp_cache_add_non_persistent_groups( array( 'comment', '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() ) {
Use `wp_installing()` instead of `WP_INSTALLING` constant. The `WP_INSTALLING` constant is a flag that WordPress sets in a number of places, telling the system that options should be fetched directly from the database instead of from the cache, that WP should not ping wordpress.org for updates, that the normal "not installed" checks should be bypassed, and so on. A constant is generally necessary for this purpose, because the flag is typically set before the WP bootstrap, meaning that WP functions are not yet available. However, it is possible - notably, during `wpmu_create_blog()` - for the "installing" flag to be set after WP has already loaded. In these cases, `WP_INSTALLING` would be set for the remainder of the process, since there's no way to change a constant once it's defined. This, in turn, polluted later function calls that ought to have been outside the scope of site creation, particularly the non-caching of option data. The problem was particularly evident in the case of the automated tests, where `WP_INSTALLING` was set the first time a site was created, and remained set for the rest of the suite. The new `wp_installing()` function allows developers to fetch the current installation status (when called without any arguments) or to set the installation status (when called with a boolean `true` or `false`). Use of the `WP_INSTALLING` constant is still supported; `wp_installing()` will default to `true` if the constant is defined during the bootstrap. Props boonebgorges, jeremyfelt. See #31130. Built from https://develop.svn.wordpress.org/trunk@34828 git-svn-id: http://core.svn.wordpress.org/trunk@34793 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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if ( ! is_blog_installed() && ! wp_installing() ) {
nocache_headers();
wp_die( __( 'The site you have requested is not installed properly. Please contact the system administrator.' ) );
}
Use `wp_installing()` instead of `WP_INSTALLING` constant. The `WP_INSTALLING` constant is a flag that WordPress sets in a number of places, telling the system that options should be fetched directly from the database instead of from the cache, that WP should not ping wordpress.org for updates, that the normal "not installed" checks should be bypassed, and so on. A constant is generally necessary for this purpose, because the flag is typically set before the WP bootstrap, meaning that WP functions are not yet available. However, it is possible - notably, during `wpmu_create_blog()` - for the "installing" flag to be set after WP has already loaded. In these cases, `WP_INSTALLING` would be set for the remainder of the process, since there's no way to change a constant once it's defined. This, in turn, polluted later function calls that ought to have been outside the scope of site creation, particularly the non-caching of option data. The problem was particularly evident in the case of the automated tests, where `WP_INSTALLING` was set the first time a site was created, and remained set for the rest of the suite. The new `wp_installing()` function allows developers to fetch the current installation status (when called without any arguments) or to set the installation status (when called with a boolean `true` or `false`). Use of the `WP_INSTALLING` constant is still supported; `wp_installing()` will default to `true` if the constant is defined during the bootstrap. Props boonebgorges, jeremyfelt. See #31130. Built from https://develop.svn.wordpress.org/trunk@34828 git-svn-id: http://core.svn.wordpress.org/trunk@34793 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2015-10-05 17:06:28 +02:00
} 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' );
array_unshift( $plugins, ABSPATH . 'my-hacks.php' );
}
Use `wp_installing()` instead of `WP_INSTALLING` constant. The `WP_INSTALLING` constant is a flag that WordPress sets in a number of places, telling the system that options should be fetched directly from the database instead of from the cache, that WP should not ping wordpress.org for updates, that the normal "not installed" checks should be bypassed, and so on. A constant is generally necessary for this purpose, because the flag is typically set before the WP bootstrap, meaning that WP functions are not yet available. However, it is possible - notably, during `wpmu_create_blog()` - for the "installing" flag to be set after WP has already loaded. In these cases, `WP_INSTALLING` would be set for the remainder of the process, since there's no way to change a constant once it's defined. This, in turn, polluted later function calls that ought to have been outside the scope of site creation, particularly the non-caching of option data. The problem was particularly evident in the case of the automated tests, where `WP_INSTALLING` was set the first time a site was created, and remained set for the rest of the suite. The new `wp_installing()` function allows developers to fetch the current installation status (when called without any arguments) or to set the installation status (when called with a boolean `true` or `false`). Use of the `WP_INSTALLING` constant is still supported; `wp_installing()` will default to `true` if the constant is defined during the bootstrap. Props boonebgorges, jeremyfelt. See #31130. Built from https://develop.svn.wordpress.org/trunk@34828 git-svn-id: http://core.svn.wordpress.org/trunk@34793 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2015-10-05 17:06:28 +02:00
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);
}
/**
* 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;
}