[Summary view] [Print] [Text view]

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