wp/wp-includes/update.php
changeset 5 5e2f62d02dcd
parent 0 d970ebf37754
child 7 cf61fcea0001
--- a/wp/wp-includes/update.php	Mon Jun 08 16:11:51 2015 +0000
+++ b/wp/wp-includes/update.php	Tue Jun 09 03:35:32 2015 +0200
@@ -13,34 +13,41 @@
  * 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.
  *
  * @param array $extra_stats Extra statistics to report to the WordPress.org API.
- * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
+ * @param bool $force_check Whether to bypass the transient cache and force a fresh update check. Defaults to false, true if $extra_stats is set.
+ * @return null|false Returns null if update is unsupported. Returns false if check is too soon.
  */
-function wp_version_check( $extra_stats = array() ) {
+function wp_version_check( $extra_stats = array(), $force_check = false ) {
 	if ( defined('WP_INSTALLING') )
 		return;
 
 	global $wpdb, $wp_local_package;
-	include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
+	include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version
 	$php_version = phpversion();
 
 	$current = get_site_transient( 'update_core' );
 	$translations = wp_get_installed_translations( 'core' );
 
+	// Invalidate the transient when $wp_version changes
+	if ( is_object( $current ) && $wp_version != $current->version_checked )
+		$current = false;
+
 	if ( ! is_object($current) ) {
 		$current = new stdClass;
 		$current->updates = array();
 		$current->version_checked = $wp_version;
 	}
 
+	if ( ! empty( $extra_stats ) )
+		$force_check = true;
+
 	// Wait 60 seconds between multiple version check requests
 	$timeout = 60;
 	$time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
-	if ( $time_not_changed && empty( $extra_stats ) )
+	if ( ! $force_check && $time_not_changed )
 		return false;
 
 	$locale = get_locale();
@@ -87,10 +94,10 @@
 	);
 
 	$post_body = array(
-		'translations' => json_encode( $translations ),
+		'translations' => wp_json_encode( $translations ),
 	);
 
-	if ( $extra_stats )
+	if ( is_array( $extra_stats ) )
 		$post_body = array_merge( $post_body, $extra_stats );
 
 	$url = $http_url = 'http://api.wordpress.org/core/version-check/1.7/?' . http_build_query( $query, null, '&' );
@@ -109,7 +116,7 @@
 
 	$response = wp_remote_post( $url, $options );
 	if ( $ssl && is_wp_error( $response ) ) {
-		trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="http://wordpress.org/support/">support forums</a>.' ) . ' ' . '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)', headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
+		trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
 		$response = wp_remote_post( $http_url, $options );
 	}
 
@@ -135,7 +142,7 @@
 				$offer[ $offer_key ] = esc_html( $value );
 		}
 		$offer = (object) array_intersect_key( $offer, array_fill_keys( array( 'response', 'download', 'locale',
-			'packages', 'current', 'version', 'php_version', 'mysql_version', 'new_bundled', 'partial_version', 'notify_email' ), '' ) );
+			'packages', 'current', 'version', 'php_version', 'mysql_version', 'new_bundled', 'partial_version', 'notify_email', 'support_email', 'new_files' ), '' ) );
 	}
 
 	$updates = new stdClass();
@@ -146,7 +153,20 @@
 	if ( isset( $body['translations'] ) )
 		$updates->translations = $body['translations'];
 
-	set_site_transient( 'update_core',  $updates);
+	set_site_transient( 'update_core', $updates );
+
+	if ( ! empty( $body['ttl'] ) ) {
+		$ttl = (int) $body['ttl'];
+		if ( $ttl && ( time() + $ttl < wp_next_scheduled( 'wp_version_check' ) ) ) {
+			// Queue an event to re-run the update check in $ttl seconds.
+			wp_schedule_single_event( time() + $ttl, 'wp_version_check' );
+		}
+	}
+
+	// Trigger a background updates check if running non-interactively, and we weren't called from the update handler.
+	if ( defined( 'DOING_CRON' ) && DOING_CRON && ! doing_action( 'wp_maybe_auto_update' ) ) {
+		do_action( 'wp_maybe_auto_update' );
+	}
 }
 
 /**
@@ -156,14 +176,14 @@
  * 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 notify the WordPress version.
  *
- * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
+ * @param array $extra_stats Extra statistics to report to the WordPress.org API.
+ * @return false|null Returns null if update is unsupported. Returns false if check is too soon.
  */
-function wp_update_plugins() {
-	include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
+function wp_update_plugins( $extra_stats = array() ) {
+	include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version
 
 	if ( defined('WP_INSTALLING') )
 		return false;
@@ -196,12 +216,16 @@
 			$timeout = HOUR_IN_SECONDS;
 			break;
 		default :
-			$timeout = 12 * HOUR_IN_SECONDS;
+			if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
+				$timeout = 0;
+			} else {
+				$timeout = 12 * HOUR_IN_SECONDS;
+			}
 	}
 
 	$time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
 
-	if ( $time_not_changed ) {
+	if ( $time_not_changed && ! $extra_stats ) {
 		$plugin_changed = false;
 		foreach ( $plugins as $file => $p ) {
 			$new_option->checked[ $file ] = $p['Version'];
@@ -240,23 +264,35 @@
 	 */
 	$locales = apply_filters( 'plugins_update_check_locales', $locales );
 
+	if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
+		$timeout = 30;
+	} else {
+		// Three seconds, plus one extra second for every 10 plugins
+		$timeout = 3 + (int) ( count( $plugins ) / 10 );
+	}
+
 	$options = array(
-		'timeout' => ( ( defined('DOING_CRON') && DOING_CRON ) ? 30 : 3),
+		'timeout' => $timeout,
 		'body' => array(
-			'plugins'      => json_encode( $to_send ),
-			'translations' => json_encode( $translations ),
-			'locale'       => json_encode( $locales ),
+			'plugins'      => wp_json_encode( $to_send ),
+			'translations' => wp_json_encode( $translations ),
+			'locale'       => wp_json_encode( $locales ),
+			'all'          => wp_json_encode( true ),
 		),
 		'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
 	);
 
+	if ( $extra_stats ) {
+		$options['body']['update_stats'] = wp_json_encode( $extra_stats );
+	}
+
 	$url = $http_url = 'http://api.wordpress.org/plugins/update-check/1.1/';
 	if ( $ssl = wp_http_supports( array( 'ssl' ) ) )
 		$url = set_url_scheme( $url, 'https' );
 
 	$raw_response = wp_remote_post( $url, $options );
 	if ( $ssl && is_wp_error( $raw_response ) ) {
-		trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="http://wordpress.org/support/">support forums</a>.' ) . ' ' . '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)', headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
+		trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
 		$raw_response = wp_remote_post( $http_url, $options );
 	}
 
@@ -268,13 +304,20 @@
 		$plugin = (object) $plugin;
 	}
 	unset( $plugin );
+	foreach ( $response['no_update'] as &$plugin ) {
+		$plugin = (object) $plugin;
+	}
+	unset( $plugin );
 
 	if ( is_array( $response ) ) {
 		$new_option->response = $response['plugins'];
 		$new_option->translations = $response['translations'];
+		// TODO: Perhaps better to store no_update in a separate transient with an expiry?
+		$new_option->no_update = $response['no_update'];
 	} else {
 		$new_option->response = array();
 		$new_option->translations = array();
+		$new_option->no_update = array();
 	}
 
 	set_site_transient( 'update_plugins', $new_option );
@@ -287,14 +330,14 @@
  * 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 notify the WordPress version.
  *
- * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
+ * @param array $extra_stats Extra statistics to report to the WordPress.org API.
+ * @return false|null Returns null if update is unsupported. Returns false if check is too soon.
  */
-function wp_update_themes() {
-	include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
+function wp_update_themes( $extra_stats = array() ) {
+	include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version
 
 	if ( defined( 'WP_INSTALLING' ) )
 		return false;
@@ -338,12 +381,16 @@
 			$timeout = HOUR_IN_SECONDS;
 			break;
 		default :
-			$timeout = 12 * HOUR_IN_SECONDS;
+			if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
+				$timeout = 0;
+			} else {
+				$timeout = 12 * HOUR_IN_SECONDS;
+			}
 	}
 
 	$time_not_changed = isset( $last_update->last_checked ) && $timeout > ( time() - $last_update->last_checked );
 
-	if ( $time_not_changed ) {
+	if ( $time_not_changed && ! $extra_stats ) {
 		$theme_changed = false;
 		foreach ( $checked as $slug => $v ) {
 			if ( !isset( $last_update->checked[ $slug ] ) || strval($last_update->checked[ $slug ]) !== strval($v) )
@@ -380,23 +427,34 @@
 	 */
 	$locales = apply_filters( 'themes_update_check_locales', $locales );
 
+	if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
+		$timeout = 30;
+	} else {
+		// Three seconds, plus one extra second for every 10 themes
+		$timeout = 3 + (int) ( count( $themes ) / 10 );
+	}
+
 	$options = array(
-		'timeout' => ( ( defined('DOING_CRON') && DOING_CRON ) ? 30 : 3),
+		'timeout' => $timeout,
 		'body' => array(
-			'themes'       => json_encode( $request ),
-			'translations' => json_encode( $translations ),
-			'locale'       => json_encode( $locales ),
+			'themes'       => wp_json_encode( $request ),
+			'translations' => wp_json_encode( $translations ),
+			'locale'       => wp_json_encode( $locales ),
 		),
 		'user-agent'	=> 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
 	);
 
+	if ( $extra_stats ) {
+		$options['body']['update_stats'] = wp_json_encode( $extra_stats );
+	}
+
 	$url = $http_url = 'http://api.wordpress.org/themes/update-check/1.1/';
 	if ( $ssl = wp_http_supports( array( 'ssl' ) ) )
 		$url = set_url_scheme( $url, 'https' );
 
 	$raw_response = wp_remote_post( $url, $options );
 	if ( $ssl && is_wp_error( $raw_response ) ) {
-		trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="http://wordpress.org/support/">support forums</a>.' ) . ' ' . '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)', headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
+		trigger_error( __( 'An unexpected error occurred. Something may be wrong with WordPress.org or this server&#8217;s configuration. If you continue to have problems, please try the <a href="https://wordpress.org/support/">support forums</a>.' ) . ' ' . __( '(WordPress could not establish a secure connection to WordPress.org. Please contact your server administrator.)' ), headers_sent() || WP_DEBUG ? E_USER_WARNING : E_USER_NOTICE );
 		$raw_response = wp_remote_post( $http_url, $options );
 	}
 
@@ -423,8 +481,8 @@
  * @since 3.7.0
  */
 function wp_maybe_auto_update() {
-	include_once ABSPATH . '/wp-admin/includes/admin.php';
-	include_once ABSPATH . '/wp-admin/includes/class-wp-upgrader.php';
+	include_once( ABSPATH . '/wp-admin/includes/admin.php' );
+	include_once( ABSPATH . '/wp-admin/includes/class-wp-upgrader.php' );
 
 	$upgrader = new WP_Automatic_Updater;
 	$upgrader->run();
@@ -452,7 +510,7 @@
 	return $updates;
 }
 
-/*
+/**
  * Collect counts and UI strings for available updates
  *
  * @since 3.3.0
@@ -514,7 +572,7 @@
 }
 
 function _maybe_update_core() {
-	include ABSPATH . WPINC . '/version.php'; // include an unmodified $wp_version
+	include( ABSPATH . WPINC . '/version.php' ); // include an unmodified $wp_version
 
 	$current = get_site_transient( 'update_core' );
 
@@ -584,12 +642,30 @@
 			$next += 12 * HOUR_IN_SECONDS;
 		}
 		$next = $next - get_option( 'gmt_offset' ) * HOUR_IN_SECONDS;
+		// Add a random number of minutes, so we don't have all sites trying to update exactly on the hour
+		$next = $next + rand( 0, 59 ) * MINUTE_IN_SECONDS;
 		wp_schedule_event( $next, 'twicedaily', 'wp_maybe_auto_update' );
 	}
 }
 
-if ( ( ! is_main_site() && ! is_network_admin() ) || ( defined( 'DOING_AJAX' ) && DOING_AJAX ) )
+/**
+ * Clear existing update caches for plugins, themes, and core.
+ *
+ * @since 4.1.0
+ */
+function wp_clean_update_cache() {
+	if ( function_exists( 'wp_clean_plugins_cache' ) ) {
+		wp_clean_plugins_cache();
+	} else {
+		delete_site_transient( 'update_plugins' );
+	}
+	wp_clean_themes_cache();
+	delete_site_transient( 'update_core' );
+}
+
+if ( ( ! is_main_site() && ! is_network_admin() ) || ( defined( 'DOING_AJAX' ) && DOING_AJAX ) ) {
 	return;
+}
 
 add_action( 'admin_init', '_maybe_update_core' );
 add_action( 'wp_version_check', 'wp_version_check' );
@@ -600,15 +676,17 @@
 add_action( 'load-update-core.php', 'wp_update_plugins' );
 add_action( 'admin_init', '_maybe_update_plugins' );
 add_action( 'wp_update_plugins', 'wp_update_plugins' );
-add_action( 'upgrader_process_complete', 'wp_update_plugins' );
+add_action( 'upgrader_process_complete', 'wp_update_plugins', 10, 0 );
 
 add_action( 'load-themes.php', 'wp_update_themes' );
 add_action( 'load-update.php', 'wp_update_themes' );
 add_action( 'load-update-core.php', 'wp_update_themes' );
 add_action( 'admin_init', '_maybe_update_themes' );
 add_action( 'wp_update_themes', 'wp_update_themes' );
-add_action( 'upgrader_process_complete', 'wp_update_themes' );
+add_action( 'upgrader_process_complete', 'wp_update_themes', 10, 0 );
+
+add_action( 'update_option_WPLANG', 'wp_clean_update_cache' , 10, 0 );
 
 add_action( 'wp_maybe_auto_update', 'wp_maybe_auto_update' );
 
-add_action('init', 'wp_schedule_update_checks');
+add_action( 'init', 'wp_schedule_update_checks' );