web/wp-includes/update.php
branchwordpress
changeset 109 03b0d1493584
child 132 4d4862461b8d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/wp-includes/update.php	Wed Dec 23 17:55:33 2009 +0000
@@ -0,0 +1,313 @@
+<?php
+/**
+ * A simple set of functions to check our version 1.0 update service.
+ *
+ * @package WordPress
+ * @since 2.3.0
+ */
+
+/**
+ * Check WordPress version against the newest version.
+ *
+ * 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.
+ *
+ * @package WordPress
+ * @since 2.3.0
+ * @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.
+ */
+function wp_version_check() {
+	if ( defined('WP_INSTALLING') )
+		return;
+
+	global $wp_version, $wpdb, $wp_local_package;
+	$php_version = phpversion();
+
+	$current = get_transient( 'update_core' );
+	if ( ! is_object($current) ) {
+		$current = new stdClass;
+		$current->updates = array();
+		$current->version_checked = $wp_version;
+	}
+
+	$locale = apply_filters( 'core_version_check_locale', get_locale() );
+
+	// Update last_checked for current to prevent multiple blocking requests if request hangs
+	$current->last_checked = time();
+	set_transient( 'update_core', $current );
+
+	if ( method_exists( $wpdb, 'db_version' ) )
+		$mysql_version = preg_replace('/[^0-9.].*/', '', $wpdb->db_version($wpdb->users));
+	else
+		$mysql_version = 'N/A';
+	$local_package = isset( $wp_local_package )? $wp_local_package : '';
+	$url = "http://api.wordpress.org/core/version-check/1.3/?version=$wp_version&php=$php_version&locale=$locale&mysql=$mysql_version&local_package=$local_package";
+
+	$options = array(
+		'timeout' => 3,
+		'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
+	);
+
+	$response = wp_remote_get($url, $options);
+
+	if ( is_wp_error( $response ) )
+		return false;
+
+	if ( 200 != $response['response']['code'] )
+		return false;
+
+	$body = trim( $response['body'] );
+	$body = str_replace(array("\r\n", "\r"), "\n", $body);
+	$new_options = array();
+	foreach( explode( "\n\n", $body ) as $entry) {
+		$returns = explode("\n", $entry);
+		$new_option = new stdClass();
+		$new_option->response = esc_attr( $returns[0] );
+		if ( isset( $returns[1] ) )
+			$new_option->url = esc_url( $returns[1] );
+		if ( isset( $returns[2] ) )
+			$new_option->package = esc_url( $returns[2] );
+		if ( isset( $returns[3] ) )
+			$new_option->current = esc_attr( $returns[3] );
+		if ( isset( $returns[4] ) )
+			$new_option->locale = esc_attr( $returns[4] );
+		$new_options[] = $new_option;
+	}
+
+	$updates = new stdClass();
+	$updates->updates = $new_options;
+	$updates->last_checked = time();
+	$updates->version_checked = $wp_version;
+	set_transient( 'update_core',  $updates);
+}
+
+/**
+ * Check plugin versions against the latest versions hosted on WordPress.org.
+ *
+ * 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 WordPress isn't installing.
+ *
+ * @package WordPress
+ * @since 2.3.0
+ * @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;
+
+	if ( defined('WP_INSTALLING') )
+		return false;
+
+	// If running blog-side, bail unless we've not checked in the last 12 hours
+	if ( !function_exists( 'get_plugins' ) )
+		require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
+
+	$plugins = get_plugins();
+	$active  = get_option( 'active_plugins' );
+	$current = get_transient( 'update_plugins' );
+	if ( ! is_object($current) )
+		$current = new stdClass;
+
+	$new_option = new stdClass;
+	$new_option->last_checked = time();
+	$timeout = 'load-plugins.php' == current_filter() ? 3600 : 43200; //Check for updated every 60 minutes if hitting the themes page, Else, check every 12 hours
+	$time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
+
+	$plugin_changed = false;
+	foreach ( $plugins as $file => $p ) {
+		$new_option->checked[ $file ] = $p['Version'];
+
+		if ( !isset( $current->checked[ $file ] ) || strval($current->checked[ $file ]) !== strval($p['Version']) )
+			$plugin_changed = true;
+	}
+
+	if ( isset ( $current->response ) && is_array( $current->response ) ) {
+		foreach ( $current->response as $plugin_file => $update_details ) {
+			if ( ! isset($plugins[ $plugin_file ]) ) {
+				$plugin_changed = true;
+				break;
+			}
+		}
+	}
+
+	// Bail if we've checked in the last 12 hours and if nothing has changed
+	if ( $time_not_changed && !$plugin_changed )
+		return false;
+
+	// Update last_checked for current to prevent multiple blocking requests if request hangs
+	$current->last_checked = time();
+	set_transient( 'update_plugins', $current );
+
+	$to_send = (object)compact('plugins', 'active');
+
+	$options = array(
+		'timeout' => 3,
+		'body' => array( 'plugins' => serialize( $to_send ) ),
+		'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
+	);
+
+	$raw_response = wp_remote_post('http://api.wordpress.org/plugins/update-check/1.0/', $options);
+
+	if ( is_wp_error( $raw_response ) )
+		return false;
+
+	if( 200 != $raw_response['response']['code'] )
+		return false;
+
+	$response = unserialize( $raw_response['body'] );
+
+	if ( false !== $response )
+		$new_option->response = $response;
+	else
+		$new_option->response = array();
+
+	set_transient( 'update_plugins', $new_option );
+}
+
+/**
+ * Check theme versions against the latest versions hosted on WordPress.org.
+ *
+ * A list of all themes installed in sent to WP. Checks against the
+ * WordPress server at api.wordpress.org. Will only check if WordPress isn't
+ * installing.
+ *
+ * @package WordPress
+ * @since 2.7.0
+ * @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_themes( ) {
+	global $wp_version;
+
+	if( defined( 'WP_INSTALLING' ) )
+		return false;
+
+	if( !function_exists( 'get_themes' ) )
+		require_once( ABSPATH . 'wp-includes/theme.php' );
+
+	$installed_themes = get_themes( );
+	$current_theme = get_transient( 'update_themes' );
+	if ( ! is_object($current_theme) )
+		$current_theme = new stdClass;
+
+	$new_option = new stdClass;
+	$new_option->last_checked = time( );
+	$timeout = 'load-themes.php' == current_filter() ? 3600 : 43200; //Check for updated every 60 minutes if hitting the themes page, Else, check every 12 hours
+	$time_not_changed = isset( $current_theme->last_checked ) && $timeout > ( time( ) - $current_theme->last_checked );
+
+	if( $time_not_changed )
+		return false;
+
+	// Update last_checked for current to prevent multiple blocking requests if request hangs
+	$current_theme->last_checked = time();
+	set_transient( 'update_themes', $current_theme );
+
+	$current_theme->template = get_option( 'template' );
+
+	$themes = array( );
+	$themes['current_theme'] = (array) $current_theme;
+	foreach( (array) $installed_themes as $theme_title => $theme ) {
+		$themes[$theme['Stylesheet']] = array( );
+
+		foreach( (array) $theme as $key => $value ) {
+			$themes[$theme['Stylesheet']][$key] = $value;
+		}
+	}
+
+	$options = array(
+		'timeout'		=> 3,
+		'body'			=> array( 'themes' => serialize( $themes ) ),
+		'user-agent'	=> 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
+	);
+
+	$raw_response = wp_remote_post( 'http://api.wordpress.org/themes/update-check/1.0/', $options );
+
+	if( is_wp_error( $raw_response ) )
+		return false;
+
+	if( 200 != $raw_response['response']['code'] )
+		return false;
+
+	$response = unserialize( $raw_response['body'] );
+	if( $response )
+		$new_option->response = $response;
+
+	set_transient( 'update_themes', $new_option );
+}
+
+function _maybe_update_core() {
+	global $wp_version;
+
+	$current = get_transient( 'update_core' );
+
+	if ( isset( $current->last_checked ) &&
+		43200 > ( time() - $current->last_checked ) &&
+		isset( $current->version_checked ) &&
+		$current->version_checked == $wp_version )
+		return;
+
+	wp_version_check();
+}
+/**
+ * Check the last time plugins were run before checking plugin versions.
+ *
+ * This might have been backported to WordPress 2.6.1 for performance reasons.
+ * This is used for the wp-admin to check only so often instead of every page
+ * load.
+ *
+ * @since 2.7.0
+ * @access private
+ */
+function _maybe_update_plugins() {
+	$current = get_transient( 'update_plugins' );
+	if ( isset( $current->last_checked ) && 43200 > ( time() - $current->last_checked ) )
+		return;
+	wp_update_plugins();
+}
+
+/**
+ * Check themes versions only after a duration of time.
+ *
+ * This is for performance reasons to make sure that on the theme version
+ * checker is not run on every page load.
+ *
+ * @since 2.7.0
+ * @access private
+ */
+function _maybe_update_themes( ) {
+	$current = get_transient( 'update_themes' );
+	if( isset( $current->last_checked ) && 43200 > ( time( ) - $current->last_checked ) )
+		return;
+
+	wp_update_themes( );
+}
+
+add_action( 'admin_init', '_maybe_update_core' );
+add_action( 'wp_version_check', 'wp_version_check' );
+
+add_action( 'load-plugins.php', 'wp_update_plugins' );
+add_action( 'load-update.php', 'wp_update_plugins' );
+add_action( 'admin_init', '_maybe_update_plugins' );
+add_action( 'wp_update_plugins', 'wp_update_plugins' );
+
+add_action( 'load-themes.php', 'wp_update_themes' );
+add_action( 'load-update.php', 'wp_update_themes' );
+add_action( 'admin_init', '_maybe_update_themes' );
+add_action( 'wp_update_themes', 'wp_update_themes' );
+
+if ( !wp_next_scheduled('wp_version_check') && !defined('WP_INSTALLING') )
+	wp_schedule_event(time(), 'twicedaily', 'wp_version_check');
+
+if ( !wp_next_scheduled('wp_update_plugins') && !defined('WP_INSTALLING') )
+	wp_schedule_event(time(), 'twicedaily', 'wp_update_plugins');
+
+if ( !wp_next_scheduled('wp_update_themes') && !defined('WP_INSTALLING') )
+	wp_schedule_event(time(), 'twicedaily', 'wp_update_themes');
+
+?>