X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/9e77185fafaf4e60e2b73821e0e4b9b1a11fb85f..3d39054f012aefe514b3f5509e32f09fc4feda44:/wp-includes/load.php diff --git a/wp-includes/load.php b/wp-includes/load.php index 07f2283a..b69c0d5e 100644 --- a/wp-includes/load.php +++ b/wp-includes/load.php @@ -7,13 +7,26 @@ * @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 - * - * @return null Will return null if register_globals PHP directive was disabled. */ function wp_unregister_GLOBALS() { if ( !ini_get( 'register_globals' ) ) @@ -52,14 +65,14 @@ function wp_fix_server_vars() { $_SERVER = array_merge( $default_server_values, $_SERVER ); // Fix for IIS when running with PHP ISAPI - if ( empty( $_SERVER['REQUEST_URI'] ) || ( php_sapi_name() != 'cgi-fcgi' && preg_match( '/^Microsoft-IIS\//', $_SERVER['SERVER_SOFTWARE'] ) ) ) { + 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 - else if ( isset( $_SERVER['HTTP_X_REWRITE_URL'] ) ) { + 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 @@ -113,13 +126,19 @@ function wp_check_php_mysql_versions() { 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' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' ) ) { + if ( ! extension_loaded( 'mysql' ) && ! extension_loaded( 'mysqli' ) && ! extension_loaded( 'mysqlnd' ) && ! file_exists( WP_CONTENT_DIR . '/db.php' ) ) { wp_load_translations_early(); - header( 'Content-Type: text/html; charset=utf-8' ); + + $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.' ) ); } } @@ -134,7 +153,6 @@ function wp_check_php_mysql_versions() { function wp_favicon_request() { if ( '/favicon.ico' == $_SERVER['REQUEST_URI'] ) { header('Content-Type: image/vnd.microsoft.icon'); - header('Content-Length: 0'); exit; } } @@ -156,7 +174,7 @@ function wp_favicon_request() { * @global int $upgrading the unix timestamp marking when upgrading WordPress began. */ function wp_maintenance() { - if ( !file_exists( ABSPATH . '.maintenance' ) || defined( 'WP_INSTALLING' ) ) + if ( ! file_exists( ABSPATH . '.maintenance' ) || wp_installing() ) return; global $upgrading; @@ -166,6 +184,23 @@ function wp_maintenance() { 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(); @@ -173,9 +208,7 @@ function wp_maintenance() { wp_load_translations_early(); - $protocol = $_SERVER["SERVER_PROTOCOL"]; - if ( 'HTTP/1.1' != $protocol && 'HTTP/1.0' != $protocol ) - $protocol = 'HTTP/1.0'; + $protocol = wp_get_server_protocol(); header( "$protocol 503 Service Unavailable", true, 503 ); header( 'Content-Type: text/html; charset=utf-8' ); header( 'Retry-After: 600' ); @@ -217,13 +250,13 @@ function timer_start() { * * @since 0.71 * - * @global float $timestart Seconds from when timer_start() is called. - * @global float $timeend Seconds from when function is called. + * @global float $timestart Seconds from when timer_start() is called. + * @global float $timeend Seconds from when function is called. * - * @param int $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. + * @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. */ @@ -241,7 +274,8 @@ function timer_stop( $display = 0, $precision = 3 ) { * 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, and by default are set to false. + * 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 @@ -262,12 +296,28 @@ function timer_stop( $display = 0, $precision = 3 ) { * When `WP_DEBUG_LOG` is true, errors will be logged to debug.log in the content * directory. * - * Errors are never displayed for XML-RPC requests. + * 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 ); @@ -283,8 +333,10 @@ function wp_debug_mode() { } 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' ) ) - ini_set( 'display_errors', 0 ); + + if ( defined( 'XMLRPC_REQUEST' ) || defined( 'REST_REQUEST' ) || ( defined( 'DOING_AJAX' ) && DOING_AJAX ) ) { + @ini_set( 'display_errors', 0 ); + } } /** @@ -312,7 +364,7 @@ function wp_set_lang_dir() { */ define( 'WP_LANG_DIR', WP_CONTENT_DIR . '/languages' ); if ( !defined( 'LANGDIR' ) ) { - // Old static relative path maintained for limited backwards compatibility - won't work in some cases + // Old static relative path maintained for limited backward compatibility - won't work in some cases. define( 'LANGDIR', 'wp-content/languages' ); } } else { @@ -325,7 +377,7 @@ function wp_set_lang_dir() { */ define( 'WP_LANG_DIR', ABSPATH . WPINC . '/languages' ); if ( !defined( 'LANGDIR' ) ) { - // Old relative path maintained for backwards compatibility + // Old relative path maintained for backward compatibility. define( 'LANGDIR', WPINC . '/languages' ); } } @@ -381,18 +433,24 @@ function wp_set_wpdb_vars() { if ( is_wp_error( $prefix ) ) { wp_load_translations_early(); - wp_die( __( 'ERROR: $table_prefix in wp-config.php can only contain numbers, letters, and underscores.' ) ); + wp_die( + /* translators: 1: $table_prefix 2: wp-config.php */ + sprintf( __( 'ERROR: %1$s in %2$s can only contain numbers, letters, and underscores.' ), + '$table_prefix', + 'wp-config.php' + ) + ); } } /** - * Access/Modify private global variable `$_wp_using_ext_object_cache`. - * * Toggle `$_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. */ @@ -427,7 +485,7 @@ function wp_start_object_cache() { } $first_init = true; - } else if ( ! wp_using_ext_object_cache() && file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) { + } 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 @@ -451,8 +509,8 @@ function wp_start_object_cache() { wp_cache_init(); if ( function_exists( 'wp_cache_add_global_groups' ) ) { - wp_cache_add_global_groups( array( 'users', 'userlogins', 'usermeta', 'user_meta', 'site-transient', 'site-options', 'site-lookup', 'blog-lookup', 'blog-details', 'rss', 'global-posts', 'blog-id-cache' ) ); - wp_cache_add_non_persistent_groups( array( 'comment', 'counts', 'plugins' ) ); + 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' ) ); } } @@ -466,12 +524,12 @@ function wp_start_object_cache() { */ function wp_not_installed() { if ( is_multisite() ) { - if ( ! is_blog_installed() && ! defined( 'WP_INSTALLING' ) ) { + 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() && false === strpos( $_SERVER['PHP_SELF'], 'install.php' ) && !defined( 'WP_INSTALLING' ) ) { + } elseif ( ! is_blog_installed() && ! wp_installing() ) { nocache_headers(); require( ABSPATH . WPINC . '/kses.php' ); @@ -533,11 +591,11 @@ function wp_get_active_and_valid_plugins() { // 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' ); + _deprecated_file( 'my-hacks.php', '1.5.0' ); array_unshift( $plugins, ABSPATH . 'my-hacks.php' ); } - if ( empty( $active_plugins ) || defined( 'WP_INSTALLING' ) ) + if ( empty( $active_plugins ) || wp_installing() ) return $plugins; $network_plugins = is_multisite() ? wp_get_active_network_plugins() : false; @@ -632,11 +690,13 @@ function wp_clone( $object ) { /** * Whether the current request is for an administrative interface page. * - * Does not check if the user is an administrator; {@see current_user_can()} + * 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() { @@ -653,11 +713,13 @@ function is_admin() { * * e.g. `/wp-admin/` * - * Does not check if the user is an administrator; {@see current_user_can()} + * 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() { @@ -674,11 +736,13 @@ function is_blog_admin() { * * e.g. `/wp-admin/network/` * - * Does not check if the user is an administrator; {@see current_user_can()} + * 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() { @@ -697,10 +761,12 @@ function is_network_admin() { * * 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 - * {@see current_user_can()}. + * 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() { @@ -730,17 +796,42 @@ function is_multisite() { } /** - * Retrieve the current blog ID. + * Retrieve the current site ID. * * @since 3.1.0 * - * @return int Blog id + * @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. * @@ -754,7 +845,10 @@ function get_current_blog_id() { * @since 3.4.0 * @access private * - * @global $wp_locale The WordPress date and time locale object. + * @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; @@ -826,3 +920,119 @@ function wp_load_translations_early() { $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 http://php.net/manual/en/function.ini-get.php + * @link http://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 http://php.net/manual/en/function.ini-get-all.php + * + * @param string $setting The name of the ini setting to check. + * @return bool True if the value is changeable at runtime. False otherwise. + */ +function wp_is_ini_value_changeable( $setting ) { + static $ini_all; + + if ( ! isset( $ini_all ) ) { + $ini_all = false; + // Sometimes `ini_get_all()` is disabled via the `disable_functions` option for "security purposes". + if ( function_exists( 'ini_get_all' ) ) { + $ini_all = ini_get_all(); + } + } + + // Bit operator to workaround https://bugs.php.net/bug.php?id=44936 which changes access level to 63 in PHP 5.2.6 - 5.2.17. + if ( isset( $ini_all[ $setting ]['access'] ) && ( INI_ALL === ( $ini_all[ $setting ]['access'] & 7 ) || INI_USER === ( $ini_all[ $setting ]['access'] & 7 ) ) ) { + return true; + } + + // If we were unable to retrieve the details, fail gracefully to assume it's changeable. + if ( ! is_array( $ini_all ) ) { + return true; + } + + return false; +}