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< ? php
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/**
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* A simple set of functions to check our version 1.0 update service .
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*
* @ package WordPress
* @ since 2.3
*/
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/**
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* Check WordPress version against the newest version .
*
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* The WordPress version , PHP version , and Locale is sent . Checks against the
* WordPress server at api . wordpress . org server . Will only check if WordPress
* isn ' t installing .
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*
* @ package WordPress
* @ since 2.3
* @ uses $wp_version Used to check against the newest WordPress version .
*
* @ return mixed Returns null if update is unsupported . Returns false if check is too soon .
*/
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function wp_version_check () {
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if ( defined ( 'WP_INSTALLING' ) )
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return ;
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global $wp_version , $wpdb ;
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$php_version = phpversion ();
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$current = get_option ( 'update_core' );
$locale = get_locale ();
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if (
isset ( $current -> last_checked ) &&
43200 > ( time () - $current -> last_checked ) &&
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$current -> version_checked == $wp_version
)
return false ;
$new_option = '' ;
$new_option -> last_checked = time (); // this gets set whether we get a response or not, so if something is down or misconfigured it won't delay the page load for more than 3 seconds, twice a day
$new_option -> version_checked = $wp_version ;
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if ( method_exists ( $wpdb , 'db_version' ) )
$mysql_version = preg_replace ( '/[^0-9.].*/' , '' , $wpdb -> db_version ( $wpdb -> users ));
else
$mysql_version = 'N/A' ;
$url = " http://api.wordpress.org/core/version-check/1.2/?version= $wp_version &php= $php_version &locale= $locale &mysql= $mysql_version " ;
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$options = array ( 'timeout' => 3 );
$options [ 'headers' ] = array (
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'Content-Type' => 'application/x-www-form-urlencoded; charset=' . get_option ( 'blog_charset' ),
'User-Agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo ( 'url' )
);
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$response = wp_remote_request ( $url , $options );
if ( is_wp_error ( $response ) )
return false ;
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if ( 200 != $response [ 'response' ][ 'code' ] )
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return false ;
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$body = trim ( $response [ 'body' ] );
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$body = str_replace ( array ( " \r \n " , " \r " ), " \n " , $body );
$returns = explode ( " \n " , $body );
$new_option -> response = attribute_escape ( $returns [ 0 ] );
if ( isset ( $returns [ 1 ] ) )
$new_option -> url = clean_url ( $returns [ 1 ] );
if ( isset ( $returns [ 2 ] ) )
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$new_option -> package = clean_url ( $returns [ 2 ] );
if ( isset ( $returns [ 3 ] ) )
$new_option -> current = attribute_escape ( $returns [ 3 ] );
if ( isset ( $returns [ 4 ] ) )
$new_option -> locale = attribute_escape ( $returns [ 4 ] );
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update_option ( 'update_core' , $new_option );
}
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add_action ( 'init' , 'wp_version_check' );
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/**
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* Check plugin versions against the latest versions hosted on WordPress . org .
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*
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* The WordPress version , PHP version , and Locale is sent along with a list of
* all plugins installed . Checks against the WordPress server at
* api . wordpress . org . Will only check if PHP has fsockopen enabled and WordPress
* isn ' t installing .
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*
* @ package WordPress
* @ since 2.3
* @ uses $wp_version Used to notidy the WordPress version .
*
* @ return mixed Returns null if update is unsupported . Returns false if check is too soon .
*/
function wp_update_plugins () {
global $wp_version ;
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if ( defined ( 'WP_INSTALLING' ) )
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return false ;
// If running blog-side, bail unless we've not checked in the last 12 hours
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if ( ! function_exists ( 'get_plugins' ) )
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require_once ( ABSPATH . 'wp-admin/includes/plugin.php' );
$plugins = get_plugins ();
$active = get_option ( 'active_plugins' );
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$current = get_option ( 'update_plugins' );
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$new_option = '' ;
$new_option -> last_checked = time ();
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$time_not_changed = isset ( $current -> last_checked ) && 43200 > ( time () - $current -> last_checked );
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$plugin_changed = false ;
foreach ( $plugins as $file => $p ) {
$new_option -> checked [ $file ] = $p [ 'Version' ];
if ( ! isset ( $current -> checked [ $file ] ) ) {
$plugin_changed = true ;
continue ;
}
if ( strval ( $current -> checked [ $file ]) !== strval ( $p [ 'Version' ]) )
$plugin_changed = true ;
}
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if ( isset ( $current -> response ) && is_array ( $current -> response ) ) {
foreach ( $current -> response as $plugin_file => $update_details ) {
if ( ! isset ( $plugins [ $plugin_file ]) ) {
$plugin_changed = true ;
}
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}
}
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// Bail if we've checked in the last 12 hours and if nothing has changed
if ( $time_not_changed && ! $plugin_changed )
return false ;
$to_send -> plugins = $plugins ;
$to_send -> active = $active ;
$send = serialize ( $to_send );
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$body = 'plugins=' . urlencode ( $send );
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$options = array ( 'method' => 'POST' , 'timeout' => 3 , 'body' => $body );
$options [ 'headers' ] = array (
'Content-Type' => 'application/x-www-form-urlencoded; charset=' . get_option ( 'blog_charset' ),
'Content-Length' => strlen ( $body ),
'User-Agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo ( 'url' )
);
$raw_response = wp_remote_request ( 'http://api.wordpress.org/plugins/update-check/1.0/' , $options );
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if ( is_wp_error ( $raw_response ) )
return false ;
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if ( 200 != $raw_response [ 'response' ][ 'code' ] ) {
return false ;
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}
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$response = unserialize ( $raw_response [ 'body' ] );
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if ( $response )
$new_option -> response = $response ;
update_option ( 'update_plugins' , $new_option );
}
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function _maybe_update_plugins () {
$current = get_option ( 'update_plugins' );
if ( isset ( $current -> last_checked ) && 43200 > ( time () - $current -> last_checked ) )
return ;
wp_update_plugins ();
}
add_action ( 'load-plugins.php' , 'wp_update_plugins' );
add_action ( 'admin_init' , '_maybe_update_plugins' );
add_action ( 'wp_update_plugins' , 'wp_update_plugins' );
if ( ! wp_next_scheduled ( 'wp_update_plugins' ) )
wp_schedule_event ( time (), 'twicedaily' , 'wp_update_plugins' );
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?>