569 lines
18 KiB
PHP
569 lines
18 KiB
PHP
<?php
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/**
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* These functions are needed to load WordPress.
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*
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* @package WordPress
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*/
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/**
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* Turn register globals off.
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*
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* @access private
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* @since 2.1.0
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* @return null Will return null if register_globals PHP directive was disabled
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*/
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function wp_unregister_GLOBALS() {
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if ( !ini_get( 'register_globals' ) )
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return;
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if ( isset( $_REQUEST['GLOBALS'] ) )
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die( /*WP_I18N_GLOBALS_OVERWRITE*/'GLOBALS overwrite attempt detected'/*/WP_I18N_GLOBALS_OVERWRITE*/ );
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// Variables that shouldn't be unset
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$no_unset = array( 'GLOBALS', '_GET', '_POST', '_COOKIE', '_REQUEST', '_SERVER', '_ENV', '_FILES', 'table_prefix' );
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$input = array_merge( $_GET, $_POST, $_COOKIE, $_SERVER, $_ENV, $_FILES, isset( $_SESSION ) && is_array( $_SESSION ) ? $_SESSION : array() );
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foreach ( $input as $k => $v )
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if ( !in_array( $k, $no_unset ) && isset( $GLOBALS[$k] ) ) {
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$GLOBALS[$k] = null;
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unset( $GLOBALS[$k] );
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}
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}
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/**
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* Fix $_SERVER variables for various setups.
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*
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* @access private
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* @since 3.0.0
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*/
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function wp_fix_server_vars() {
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global $PHP_SELF;
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// Fix for IIS when running with PHP ISAPI
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if ( empty( $_SERVER['REQUEST_URI'] ) || ( php_sapi_name() != 'cgi-fcgi' && preg_match( '/^Microsoft-IIS\//', $_SERVER['SERVER_SOFTWARE'] ) ) ) {
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// IIS Mod-Rewrite
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if ( isset( $_SERVER['HTTP_X_ORIGINAL_URL'] ) ) {
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$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_ORIGINAL_URL'];
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}
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// IIS Isapi_Rewrite
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else if ( isset( $_SERVER['HTTP_X_REWRITE_URL'] ) ) {
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$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_REWRITE_URL'];
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} else {
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// Use ORIG_PATH_INFO if there is no PATH_INFO
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if ( !isset( $_SERVER['PATH_INFO'] ) && isset( $_SERVER['ORIG_PATH_INFO'] ) )
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$_SERVER['PATH_INFO'] = $_SERVER['ORIG_PATH_INFO'];
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// Some IIS + PHP configurations puts the script-name in the path-info (No need to append it twice)
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if ( isset( $_SERVER['PATH_INFO'] ) ) {
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if ( $_SERVER['PATH_INFO'] == $_SERVER['SCRIPT_NAME'] )
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$_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO'];
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else
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$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . $_SERVER['PATH_INFO'];
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}
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// Append the query string if it exists and isn't null
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if ( isset( $_SERVER['QUERY_STRING'] ) && !empty( $_SERVER['QUERY_STRING'] ) ) {
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$_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
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}
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}
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}
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// Fix for PHP as CGI hosts that set SCRIPT_FILENAME to something ending in php.cgi for all requests
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if ( isset( $_SERVER['SCRIPT_FILENAME'] ) && ( strpos( $_SERVER['SCRIPT_FILENAME'], 'php.cgi' ) == strlen( $_SERVER['SCRIPT_FILENAME'] ) - 7 ) )
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$_SERVER['SCRIPT_FILENAME'] = $_SERVER['PATH_TRANSLATED'];
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// Fix for Dreamhost and other PHP as CGI hosts
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if ( strpos( $_SERVER['SCRIPT_NAME'], 'php.cgi' ) !== false )
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unset( $_SERVER['PATH_INFO'] );
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// Fix empty PHP_SELF
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$PHP_SELF = $_SERVER['PHP_SELF'];
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if ( empty( $PHP_SELF ) )
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$_SERVER['PHP_SELF'] = $PHP_SELF = preg_replace( '/(\?.*)?$/', '', $_SERVER["REQUEST_URI"] );
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}
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/**
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* Check for the required PHP version, and the MySQL extension or a database drop-in.
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*
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* Dies if requirements are not met.
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*
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* @access private
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* @since 3.0.0
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*/
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function wp_check_php_mysql_versions() {
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// we can probably extend this function to check if wp_die() exists then use translated strings, and then use it in install.php etc.
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global $required_php_version, $wp_version;
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$php_version = phpversion();
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if ( version_compare( $required_php_version, $php_version, '>' ) )
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die( sprintf( /*WP_I18N_OLD_PHP*/'Your server is running PHP version %1$s but WordPress %2%s requires at least %2%s.'/*/WP_I18N_OLD_PHP*/, $php_version, $wp_version, $required_php_version ) );
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if ( !extension_loaded( 'mysql' ) && !file_exists( WP_CONTENT_DIR . '/db.php' ) )
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die( /*WP_I18N_OLD_MYSQL*/'Your PHP installation appears to be missing the MySQL extension which is required by WordPress.'/*/WP_I18N_OLD_MYSQL*/ );
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}
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/**
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* Don't load all of WordPress when handling a favicon.ico request.
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* Instead, send the headers for a zero-length favicon and bail.
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*
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* @since 3.0.0
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*/
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function wp_favicon_request() {
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if ( '/favicon.ico' == $_SERVER['REQUEST_URI'] ) {
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header('Content-Type: image/vnd.microsoft.icon');
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header('Content-Length: 0');
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exit;
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}
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}
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/**
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* Dies with a maintenance message when conditions are met.
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*
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* Checks for a file in the WordPress root directory named ".maintenance".
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* This file will contain the variable $upgrading, set to the time the file
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* was created. If the file was created less than 10 minutes ago, WordPress
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* enters maintenance mode and displays a message.
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*
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* The default message can be replaced by using a drop-in (maintenance.php in
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* the wp-content directory).
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*
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* @access private
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* @since 3.0.0
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*/
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function wp_maintenance() {
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if ( !file_exists( ABSPATH . '.maintenance' ) || defined( 'WP_INSTALLING' ) )
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return;
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include( ABSPATH . '.maintenance' );
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// If the $upgrading timestamp is older than 10 minutes, don't die.
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if ( ( time() - $upgrading ) >= 600 )
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return;
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if ( file_exists( WP_CONTENT_DIR . '/maintenance.php' ) ) {
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require_once( WP_CONTENT_DIR . '/maintenance.php' );
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die();
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}
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$protocol = $_SERVER["SERVER_PROTOCOL"];
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if ( 'HTTP/1.1' != $protocol && 'HTTP/1.0' != $protocol )
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$protocol = 'HTTP/1.0';
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header( "$protocol 503 Service Unavailable", true, 503 );
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header( 'Content-Type: text/html; charset=utf-8' );
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header( 'Retry-After: 600' );
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?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<title>Maintenance</title>
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</head>
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<body>
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<h1>Briefly unavailable for scheduled maintenance. Check back in a minute.</h1>
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</body>
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</html>
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<?php
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die();
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}
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/**
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* PHP 4 standard microtime start capture.
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*
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* @access private
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* @since 0.71
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* @global int $timestart Seconds and Microseconds added together from when function is called.
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* @return bool Always returns true.
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*/
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function timer_start() {
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global $timestart;
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$mtime = explode( ' ', microtime() );
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$timestart = $mtime[1] + $mtime[0];
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return true;
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}
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/**
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* Return and/or display the time from the page start to when function is called.
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*
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* You can get the results and print them by doing:
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* <code>
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* $nTimePageTookToExecute = timer_stop();
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* echo $nTimePageTookToExecute;
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* </code>
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*
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* Or instead, you can do:
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* <code>
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* timer_stop(1);
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* </code>
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* which will do what the above does. If you need the result, you can assign it to a variable, but
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* most cases, you only need to echo it.
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*
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* @since 0.71
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* @global int $timestart Seconds and Microseconds added together from when timer_start() is called
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* @global int $timeend Seconds and Microseconds added together from when function is called
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*
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* @param int $display Use '0' or null to not echo anything and 1 to echo the total time
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* @param int $precision The amount of digits from the right of the decimal to display. Default is 3.
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* @return float The "second.microsecond" finished time calculation
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*/
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function timer_stop( $display = 0, $precision = 3 ) { // if called like timer_stop(1), will echo $timetotal
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global $timestart, $timeend;
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$mtime = microtime();
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$mtime = explode( ' ', $mtime );
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$timeend = $mtime[1] + $mtime[0];
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$timetotal = $timeend - $timestart;
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$r = ( function_exists( 'number_format_i18n' ) ) ? number_format_i18n( $timetotal, $precision ) : number_format( $timetotal, $precision );
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if ( $display )
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echo $r;
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return $r;
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}
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/**
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* Sets PHP error handling and handles WordPress debug mode.
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*
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* Uses three constants: WP_DEBUG, WP_DEBUG_DISPLAY, and WP_DEBUG_LOG. All three can be
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* defined in wp-config.php. Example: <code> define( 'WP_DEBUG', true ); </code>
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*
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* WP_DEBUG_DISPLAY and WP_DEBUG_LOG perform no function unless WP_DEBUG is true.
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* WP_DEBUG defaults to false.
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*
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* When WP_DEBUG is true, all PHP notices are reported. WordPress will also display
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* notices, including one when a deprecated WordPress function, function argument,
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* or file is used. Deprecated code may be removed from a later version.
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*
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* It is strongly recommended that plugin and theme developers use WP_DEBUG in their
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* development environments.
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*
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* When WP_DEBUG_DISPLAY is true, WordPress will force errors to be displayed.
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* WP_DEBUG_DISPLAY defaults to true. Defining it as false prevents WordPress from
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* changing the global configuration setting. (Defining WP_DEBUG_DISPLAY as false
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* will never force errors to be hidden.)
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*
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* When WP_DEBUG_LOG is true, errors will be logged to wp-content/debug.log.
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* WP_DEBUG_LOG defaults to false.
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*
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* @access private
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* @since 3.0.0
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*/
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function wp_debug_mode() {
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if ( WP_DEBUG ) {
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if ( defined( 'E_DEPRECATED' ) )
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error_reporting( E_ALL & ~E_DEPRECATED & ~E_STRICT );
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else
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error_reporting( E_ALL );
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if ( WP_DEBUG_DISPLAY )
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ini_set( 'display_errors', 1 );
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if ( WP_DEBUG_LOG ) {
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ini_set( 'log_errors', 1 );
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ini_set( 'error_log', WP_CONTENT_DIR . '/debug.log' );
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}
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} else {
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if ( defined( 'E_RECOVERABLE_ERROR' ) )
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error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR );
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else
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error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING );
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}
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}
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/**
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* Sets the location of the language directory.
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*
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* To set directory manually, define <code>WP_LANG_DIR</code> in wp-config.php.
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*
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* First looks for language folder in WP_CONTENT_DIR and uses that folder if it
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* exists. Or it uses the "languages" folder in WPINC.
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*
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* The WP_LANG_DIR constant was introduced in 2.1.0.
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*
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* @access private
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* @since 3.0.0
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*/
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function wp_set_lang_dir() {
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if ( !defined( 'WP_LANG_DIR' ) ) {
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if ( file_exists( WP_CONTENT_DIR . '/languages' ) && @is_dir( WP_CONTENT_DIR . '/languages' ) ) {
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define( 'WP_LANG_DIR', WP_CONTENT_DIR . '/languages' ); // no leading slash, no trailing slash, full path, not relative to ABSPATH
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if ( !defined( 'LANGDIR' ) ) {
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// Old static relative path maintained for limited backwards compatibility - won't work in some cases
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define( 'LANGDIR', 'wp-content/languages' );
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}
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} else {
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define( 'WP_LANG_DIR', ABSPATH . WPINC . '/languages' ); // no leading slash, no trailing slash, full path, not relative to ABSPATH
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if ( !defined( 'LANGDIR' ) ) {
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// Old relative path maintained for backwards compatibility
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define( 'LANGDIR', WPINC . '/languages' );
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}
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}
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}
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}
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/**
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* Sets the database table prefix and the format specifiers for database table columns.
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*
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* Columns not listed here default to %s.
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*
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* @see wpdb::$field_types Since 2.8.0
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* @see wpdb::prepare()
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* @see wpdb::insert()
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* @see wpdb::update()
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* @see wpdb::set_prefix()
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*
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* @access private
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* @since 3.0.0
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*/
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function wp_set_wpdb_vars() {
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global $wpdb, $table_prefix;
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if ( !empty( $wpdb->error ) )
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dead_db();
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$wpdb->field_types = array( 'post_author' => '%d', 'post_parent' => '%d', 'menu_order' => '%d', 'term_id' => '%d', 'term_group' => '%d', 'term_taxonomy_id' => '%d',
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'parent' => '%d', 'count' => '%d','object_id' => '%d', 'term_order' => '%d', 'ID' => '%d', 'commment_ID' => '%d', 'comment_post_ID' => '%d', 'comment_parent' => '%d',
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'user_id' => '%d', 'link_id' => '%d', 'link_owner' => '%d', 'link_rating' => '%d', 'option_id' => '%d', 'blog_id' => '%d', 'meta_id' => '%d', 'post_id' => '%d',
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'user_status' => '%d', 'umeta_id' => '%d', 'comment_karma' => '%d', 'comment_count' => '%d',
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// multisite:
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'active' => '%d', 'cat_id' => '%d', 'deleted' => '%d', 'lang_id' => '%d', 'mature' => '%d', 'public' => '%d', 'site_id' => '%d', 'spam' => '%d',
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);
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$prefix = $wpdb->set_prefix( $table_prefix );
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if ( is_wp_error( $prefix ) )
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wp_die( /*WP_I18N_BAD_PREFIX*/'<strong>ERROR</strong>: <code>$table_prefix</code> in <code>wp-config.php</code> can only contain numbers, letters, and underscores.'/*/WP_I18N_BAD_PREFIX*/ );
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}
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/**
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* Starts the WordPress object cache.
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*
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* If an object-cache.php file exists in the wp-content directory,
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* it uses that drop-in as an external object cache.
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*
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* @access private
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* @since 3.0.0
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*/
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function wp_start_object_cache() {
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$first_init = false;
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if ( ! function_exists( 'wp_cache_init' ) ) {
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global $_wp_using_ext_object_cache;
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if ( file_exists( WP_CONTENT_DIR . '/object-cache.php' ) ) {
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require_once ( WP_CONTENT_DIR . '/object-cache.php' );
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$_wp_using_ext_object_cache = true;
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} else {
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require_once ( ABSPATH . WPINC . '/cache.php' );
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$_wp_using_ext_object_cache = false;
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}
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$first_init = true;
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}
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// If cache supports reset, reset instead of init if already initialized.
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// Reset signals to the cache that global IDs have changed and it may need to update keys
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// and cleanup caches.
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if ( !$first_init && function_exists('wp_cache_reset') )
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wp_cache_reset();
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else
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wp_cache_init();
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if ( function_exists( 'wp_cache_add_global_groups' ) ) {
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wp_cache_add_global_groups( array( 'users', 'userlogins', 'usermeta', 'site-transient', 'site-options', 'site-lookup', 'blog-lookup', 'blog-details', 'rss' ) );
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wp_cache_add_non_persistent_groups( array( 'comment', 'counts', 'plugins' ) );
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}
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}
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/**
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* Redirects to the installer if WordPress is not installed.
|
|
*
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* Dies with an error message when multisite is enabled.
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*
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* @access private
|
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* @since 3.0.0
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*/
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function wp_not_installed() {
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if ( is_multisite() ) {
|
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if ( ! is_blog_installed() && ! defined( 'WP_INSTALLING' ) )
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wp_die( __( 'The blog you have requested is not installed properly. Please contact the system administrator.' ) );
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} elseif ( ! is_blog_installed() && false === strpos( $_SERVER['PHP_SELF'], 'install.php' ) && !defined( 'WP_INSTALLING' ) ) {
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if ( defined( 'WP_SITEURL' ) )
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$link = WP_SITEURL . '/wp-admin/install.php';
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elseif ( false !== strpos( $_SERVER['PHP_SELF'], 'wp-admin' ) )
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$link = preg_replace( '|/wp-admin/?.*?$|', '/', $_SERVER['PHP_SELF'] ) . 'wp-admin/install.php';
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else
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$link = preg_replace( '|/[^/]+?$|', '/', $_SERVER['PHP_SELF'] ) . 'wp-admin/install.php';
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require( ABSPATH . WPINC . '/kses.php' );
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require( ABSPATH . WPINC . '/pluggable.php' );
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require( ABSPATH . WPINC . '/formatting.php' );
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wp_redirect( $link );
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die();
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}
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|
}
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|
|
|
/**
|
|
* Returns array of must-use plugin files to be included in global scope.
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|
*
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* The default directory is wp-content/mu-plugins. To change the default directory
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|
* manually, define <code>WPMU_PLUGIN_DIR</code> and <code>WPMU_PLUGIN_URL</code>
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* in wp-config.php.
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*
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* @access private
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* @since 3.0.0
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* @return array Files to include
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*/
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function wp_get_mu_plugins() {
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$mu_plugins = array();
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if ( !is_dir( WPMU_PLUGIN_DIR ) )
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return $mu_plugins;
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if ( ! $dh = opendir( WPMU_PLUGIN_DIR ) )
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return $mu_plugins;
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while ( ( $plugin = readdir( $dh ) ) !== false ) {
|
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if ( substr( $plugin, -4 ) == '.php' )
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$mu_plugins[] = WPMU_PLUGIN_DIR . '/' . $plugin;
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}
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closedir( $dh );
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sort( $mu_plugins );
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return $mu_plugins;
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}
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|
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/**
|
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* Returns array of plugin files to be included in global scope.
|
|
*
|
|
* The default directory is wp-content/plugins. To change the default directory
|
|
* manually, define <code>WP_PLUGIN_DIR</code> and <code>WP_PLUGIN_URL</code>
|
|
* in wp-config.php.
|
|
*
|
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* @access private
|
|
* @since 3.0.0
|
|
* @return array Files to include
|
|
*/
|
|
function wp_get_active_and_valid_plugins() {
|
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$plugins = array();
|
|
$active_plugins = (array) get_option( 'active_plugins', array() );
|
|
|
|
// Get active network plugins
|
|
if ( is_multisite() ) {
|
|
$active_sitewide_plugins = (array) get_site_option( 'active_sitewide_plugins', array() );
|
|
if ( !empty($active_sitewide_plugins) ) {
|
|
$active_plugins = array_merge( $active_plugins, array_keys( $active_sitewide_plugins ) );
|
|
sort( $active_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' );
|
|
array_unshift( $plugins, ABSPATH . 'my-hacks.php' );
|
|
}
|
|
|
|
if ( empty( $active_plugins ) || defined( 'WP_INSTALLING' ) )
|
|
return $plugins;
|
|
|
|
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
|
|
)
|
|
$plugins[] = WP_PLUGIN_DIR . '/' . $plugin;
|
|
}
|
|
return $plugins;
|
|
}
|
|
|
|
/**
|
|
* Sets internal encoding using mb_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.
|
|
*
|
|
* @access private
|
|
* @since 3.0.0
|
|
*/
|
|
function wp_set_internal_encoding() {
|
|
if ( function_exists( 'mb_internal_encoding' ) ) {
|
|
if ( !@mb_internal_encoding( get_option( 'blog_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.
|
|
*
|
|
* @access private
|
|
* @since 3.0.0
|
|
*/
|
|
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.
|
|
*
|
|
* @access private
|
|
* @since 1.2.0
|
|
*/
|
|
function shutdown_action_hook() {
|
|
do_action( 'shutdown' );
|
|
wp_cache_close();
|
|
}
|
|
|
|
/**
|
|
* Copy an object.
|
|
*
|
|
* Returns a cloned copy of an object.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param object $object The object to clone
|
|
* @return object The cloned object
|
|
*/
|
|
function wp_clone( $object ) {
|
|
static $can_clone;
|
|
if ( !isset( $can_clone ) )
|
|
$can_clone = version_compare( phpversion(), '5.0', '>=' );
|
|
|
|
return $can_clone ? clone( $object ) : $object;
|
|
}
|
|
|
|
/**
|
|
* Whether the current request is in WordPress admin Panel
|
|
*
|
|
* 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.
|
|
*
|
|
* @since 1.5.1
|
|
*
|
|
* @return bool True if inside WordPress administration pages.
|
|
*/
|
|
function is_admin() {
|
|
if ( defined( 'WP_ADMIN' ) )
|
|
return WP_ADMIN;
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Whether Multisite support is enabled
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @return bool True if multisite is enabled, false otherwise.
|
|
*/
|
|
function is_multisite() {
|
|
if ( ( defined( 'MULTISITE' ) && MULTISITE ) || defined( 'VHOST' ) || defined( 'SUNRISE' ) )
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
?>
|