source: trunk/www.guidonia.net/wp/wp-includes/update.php@ 44

Last change on this file since 44 was 44, checked in by luciano, 14 years ago
File size: 9.6 KB
Line 
1<?php
2/**
3 * A simple set of functions to check our version 1.0 update service.
4 *
5 * @package WordPress
6 * @since 2.3.0
7 */
8
9/**
10 * Check WordPress version against the newest version.
11 *
12 * The WordPress version, PHP version, and Locale is sent. Checks against the
13 * WordPress server at api.wordpress.org server. Will only check if WordPress
14 * isn't installing.
15 *
16 * @package WordPress
17 * @since 2.3.0
18 * @uses $wp_version Used to check against the newest WordPress version.
19 *
20 * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
21 */
22function wp_version_check() {
23 if ( defined('WP_INSTALLING') )
24 return;
25
26 global $wp_version, $wpdb, $wp_local_package;
27 $php_version = phpversion();
28
29 $current = get_transient( 'update_core' );
30 if ( ! is_object($current) ) {
31 $current = new stdClass;
32 $current->updates = array();
33 $current->version_checked = $wp_version;
34 }
35
36 $locale = apply_filters( 'core_version_check_locale', get_locale() );
37
38 // Update last_checked for current to prevent multiple blocking requests if request hangs
39 $current->last_checked = time();
40 set_transient( 'update_core', $current );
41
42 if ( method_exists( $wpdb, 'db_version' ) )
43 $mysql_version = preg_replace('/[^0-9.].*/', '', $wpdb->db_version($wpdb->users));
44 else
45 $mysql_version = 'N/A';
46 $local_package = isset( $wp_local_package )? $wp_local_package : '';
47 $url = "http://api.wordpress.org/core/version-check/1.3/?version=$wp_version&php=$php_version&locale=$locale&mysql=$mysql_version&local_package=$local_package";
48
49 $options = array(
50 'timeout' => 3,
51 'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
52 );
53
54 $response = wp_remote_get($url, $options);
55
56 if ( is_wp_error( $response ) )
57 return false;
58
59 if ( 200 != $response['response']['code'] )
60 return false;
61
62 $body = trim( $response['body'] );
63 $body = str_replace(array("\r\n", "\r"), "\n", $body);
64 $new_options = array();
65 foreach( explode( "\n\n", $body ) as $entry) {
66 $returns = explode("\n", $entry);
67 $new_option = new stdClass();
68 $new_option->response = esc_attr( $returns[0] );
69 if ( isset( $returns[1] ) )
70 $new_option->url = esc_url( $returns[1] );
71 if ( isset( $returns[2] ) )
72 $new_option->package = esc_url( $returns[2] );
73 if ( isset( $returns[3] ) )
74 $new_option->current = esc_attr( $returns[3] );
75 if ( isset( $returns[4] ) )
76 $new_option->locale = esc_attr( $returns[4] );
77 $new_options[] = $new_option;
78 }
79
80 $updates = new stdClass();
81 $updates->updates = $new_options;
82 $updates->last_checked = time();
83 $updates->version_checked = $wp_version;
84 set_transient( 'update_core', $updates);
85}
86
87/**
88 * Check plugin versions against the latest versions hosted on WordPress.org.
89 *
90 * The WordPress version, PHP version, and Locale is sent along with a list of
91 * all plugins installed. Checks against the WordPress server at
92 * api.wordpress.org. Will only check if WordPress isn't installing.
93 *
94 * @package WordPress
95 * @since 2.3.0
96 * @uses $wp_version Used to notidy the WordPress version.
97 *
98 * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
99 */
100function wp_update_plugins() {
101 global $wp_version;
102
103 if ( defined('WP_INSTALLING') )
104 return false;
105
106 // If running blog-side, bail unless we've not checked in the last 12 hours
107 if ( !function_exists( 'get_plugins' ) )
108 require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
109
110 $plugins = get_plugins();
111 $active = get_option( 'active_plugins' );
112 $current = get_transient( 'update_plugins' );
113 if ( ! is_object($current) )
114 $current = new stdClass;
115
116 $new_option = new stdClass;
117 $new_option->last_checked = time();
118 $timeout = 'load-plugins.php' == current_filter() ? 3600 : 43200; //Check for updated every 60 minutes if hitting the themes page, Else, check every 12 hours
119 $time_not_changed = isset( $current->last_checked ) && $timeout > ( time() - $current->last_checked );
120
121 $plugin_changed = false;
122 foreach ( $plugins as $file => $p ) {
123 $new_option->checked[ $file ] = $p['Version'];
124
125 if ( !isset( $current->checked[ $file ] ) || strval($current->checked[ $file ]) !== strval($p['Version']) )
126 $plugin_changed = true;
127 }
128
129 if ( isset ( $current->response ) && is_array( $current->response ) ) {
130 foreach ( $current->response as $plugin_file => $update_details ) {
131 if ( ! isset($plugins[ $plugin_file ]) ) {
132 $plugin_changed = true;
133 break;
134 }
135 }
136 }
137
138 // Bail if we've checked in the last 12 hours and if nothing has changed
139 if ( $time_not_changed && !$plugin_changed )
140 return false;
141
142 // Update last_checked for current to prevent multiple blocking requests if request hangs
143 $current->last_checked = time();
144 set_transient( 'update_plugins', $current );
145
146 $to_send = (object)compact('plugins', 'active');
147
148 $options = array(
149 'timeout' => 3,
150 'body' => array( 'plugins' => serialize( $to_send ) ),
151 'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
152 );
153
154 $raw_response = wp_remote_post('http://api.wordpress.org/plugins/update-check/1.0/', $options);
155
156 if ( is_wp_error( $raw_response ) )
157 return false;
158
159 if( 200 != $raw_response['response']['code'] )
160 return false;
161
162 $response = unserialize( $raw_response['body'] );
163
164 if ( false !== $response )
165 $new_option->response = $response;
166 else
167 $new_option->response = array();
168
169 set_transient( 'update_plugins', $new_option );
170}
171
172/**
173 * Check theme versions against the latest versions hosted on WordPress.org.
174 *
175 * A list of all themes installed in sent to WP. Checks against the
176 * WordPress server at api.wordpress.org. Will only check if WordPress isn't
177 * installing.
178 *
179 * @package WordPress
180 * @since 2.7.0
181 * @uses $wp_version Used to notidy the WordPress version.
182 *
183 * @return mixed Returns null if update is unsupported. Returns false if check is too soon.
184 */
185function wp_update_themes( ) {
186 global $wp_version;
187
188 if( defined( 'WP_INSTALLING' ) )
189 return false;
190
191 if( !function_exists( 'get_themes' ) )
192 require_once( ABSPATH . 'wp-includes/theme.php' );
193
194 $installed_themes = get_themes( );
195 $current_theme = get_transient( 'update_themes' );
196 if ( ! is_object($current_theme) )
197 $current_theme = new stdClass;
198
199 $new_option = new stdClass;
200 $new_option->last_checked = time( );
201 $timeout = 'load-themes.php' == current_filter() ? 3600 : 43200; //Check for updated every 60 minutes if hitting the themes page, Else, check every 12 hours
202 $time_not_changed = isset( $current_theme->last_checked ) && $timeout > ( time( ) - $current_theme->last_checked );
203
204 if( $time_not_changed )
205 return false;
206
207 // Update last_checked for current to prevent multiple blocking requests if request hangs
208 $current_theme->last_checked = time();
209 set_transient( 'update_themes', $current_theme );
210
211 $current_theme->template = get_option( 'template' );
212
213 $themes = array( );
214 $themes['current_theme'] = (array) $current_theme;
215 foreach( (array) $installed_themes as $theme_title => $theme ) {
216 $themes[$theme['Stylesheet']] = array( );
217
218 foreach( (array) $theme as $key => $value ) {
219 $themes[$theme['Stylesheet']][$key] = $value;
220 }
221 }
222
223 $options = array(
224 'timeout' => 3,
225 'body' => array( 'themes' => serialize( $themes ) ),
226 'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
227 );
228
229 $raw_response = wp_remote_post( 'http://api.wordpress.org/themes/update-check/1.0/', $options );
230
231 if( is_wp_error( $raw_response ) )
232 return false;
233
234 if( 200 != $raw_response['response']['code'] )
235 return false;
236
237 $response = unserialize( $raw_response['body'] );
238 if( $response )
239 $new_option->response = $response;
240
241 set_transient( 'update_themes', $new_option );
242}
243
244function _maybe_update_core() {
245 global $wp_version;
246
247 $current = get_transient( 'update_core' );
248
249 if ( isset( $current->last_checked ) &&
250 43200 > ( time() - $current->last_checked ) &&
251 isset( $current->version_checked ) &&
252 $current->version_checked == $wp_version )
253 return;
254
255 wp_version_check();
256}
257/**
258 * Check the last time plugins were run before checking plugin versions.
259 *
260 * This might have been backported to WordPress 2.6.1 for performance reasons.
261 * This is used for the wp-admin to check only so often instead of every page
262 * load.
263 *
264 * @since 2.7.0
265 * @access private
266 */
267function _maybe_update_plugins() {
268 $current = get_transient( 'update_plugins' );
269 if ( isset( $current->last_checked ) && 43200 > ( time() - $current->last_checked ) )
270 return;
271 wp_update_plugins();
272}
273
274/**
275 * Check themes versions only after a duration of time.
276 *
277 * This is for performance reasons to make sure that on the theme version
278 * checker is not run on every page load.
279 *
280 * @since 2.7.0
281 * @access private
282 */
283function _maybe_update_themes( ) {
284 $current = get_transient( 'update_themes' );
285 if( isset( $current->last_checked ) && 43200 > ( time( ) - $current->last_checked ) )
286 return;
287
288 wp_update_themes( );
289}
290
291add_action( 'admin_init', '_maybe_update_core' );
292add_action( 'wp_version_check', 'wp_version_check' );
293
294add_action( 'load-plugins.php', 'wp_update_plugins' );
295add_action( 'load-update.php', 'wp_update_plugins' );
296add_action( 'admin_init', '_maybe_update_plugins' );
297add_action( 'wp_update_plugins', 'wp_update_plugins' );
298
299add_action( 'load-themes.php', 'wp_update_themes' );
300add_action( 'load-update.php', 'wp_update_themes' );
301add_action( 'admin_init', '_maybe_update_themes' );
302add_action( 'wp_update_themes', 'wp_update_themes' );
303
304if ( !wp_next_scheduled('wp_version_check') && !defined('WP_INSTALLING') )
305 wp_schedule_event(time(), 'twicedaily', 'wp_version_check');
306
307if ( !wp_next_scheduled('wp_update_plugins') && !defined('WP_INSTALLING') )
308 wp_schedule_event(time(), 'twicedaily', 'wp_update_plugins');
309
310if ( !wp_next_scheduled('wp_update_themes') && !defined('WP_INSTALLING') )
311 wp_schedule_event(time(), 'twicedaily', 'wp_update_themes');
312
313?>
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