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   1  <?php
   2  /**
   3   * WordPress Administration Update API
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   */
   8  
   9  // The admin side of our 1.1 update system
  10  
  11  /**
  12   * Selects the first update version from the update_core option
  13   *
  14   * @return object the response from the API
  15   */
  16  function get_preferred_from_update_core() {
  17      $updates = get_core_updates();
  18      if ( !is_array( $updates ) )
  19          return false;
  20      if ( empty( $updates ) )
  21          return (object)array('response' => 'latest');
  22      return $updates[0];
  23  }
  24  
  25  /**
  26   * Get available core updates
  27   *
  28   * @param array $options Set $options['dismissed'] to true to show dismissed upgrades too,
  29   *     set $options['available'] to false to skip not-dimissed updates.
  30   * @return array Array of the update objects
  31   */
  32  function get_core_updates( $options = array() ) {
  33      $options = array_merge( array('available' => true, 'dismissed' => false ), $options );
  34      $dismissed = get_option( 'dismissed_update_core' );
  35      if ( !is_array( $dismissed ) ) $dismissed = array();
  36      $from_api = get_transient( 'update_core' );
  37      if ( empty($from_api) )
  38          return false;
  39      if ( !isset( $from_api->updates ) || !is_array( $from_api->updates ) ) return false;
  40      $updates = $from_api->updates;
  41      if ( !is_array( $updates ) ) return false;
  42      $result = array();
  43      foreach($updates as $update) {
  44          if ( array_key_exists( $update->current.'|'.$update->locale, $dismissed ) ) {
  45              if ( $options['dismissed'] ) {
  46                  $update->dismissed = true;
  47                  $result[]= $update;
  48              }
  49          } else {
  50              if ( $options['available'] ) {
  51                  $update->dismissed = false;
  52                  $result[]= $update;
  53              }
  54          }
  55      }
  56      return $result;
  57  }
  58  
  59  function dismiss_core_update( $update ) {
  60      $dismissed = get_option( 'dismissed_update_core' );
  61      $dismissed[ $update->current.'|'.$update->locale ] = true;
  62      return update_option( 'dismissed_update_core', $dismissed );
  63  }
  64  
  65  function undismiss_core_update( $version, $locale ) {
  66      $dismissed = get_option( 'dismissed_update_core' );
  67      $key = $version.'|'.$locale;
  68      if ( !isset( $dismissed[$key] ) ) return false;
  69      unset( $dismissed[$key] );
  70      return update_option( 'dismissed_update_core', $dismissed );
  71  }
  72  
  73  function find_core_update( $version, $locale ) {
  74      $from_api = get_transient( 'update_core' );
  75      if ( !is_array( $from_api->updates ) ) return false;
  76      $updates = $from_api->updates;
  77      foreach($updates as $update) {
  78          if ( $update->current == $version && $update->locale == $locale )
  79              return $update;
  80      }
  81      return false;
  82  }
  83  
  84  function core_update_footer( $msg = '' ) {
  85      if ( !current_user_can('manage_options') )
  86          return sprintf( __( 'Version %s' ), $GLOBALS['wp_version'] );
  87  
  88      $cur = get_preferred_from_update_core();
  89      if ( ! isset( $cur->current ) )
  90          $cur->current = '';
  91  
  92      if ( ! isset( $cur->url ) )
  93          $cur->url = '';
  94  
  95      if ( ! isset( $cur->response ) )
  96          $cur->response = '';
  97  
  98      switch ( $cur->response ) {
  99      case 'development' :
 100          return sprintf( __( 'You are using a development version (%1$s). Cool! Please <a href="%2$s">stay updated</a>.' ), $GLOBALS['wp_version'], 'update-core.php');
 101      break;
 102  
 103      case 'upgrade' :
 104          if ( current_user_can('manage_options') ) {
 105              return sprintf( '<strong>'.__( '<a href="%1$s">Get Version %2$s</a>' ).'</strong>', 'update-core.php', $cur->current);
 106              break;
 107          }
 108  
 109      case 'latest' :
 110      default :
 111          return sprintf( __( 'Version %s' ), $GLOBALS['wp_version'] );
 112      break;
 113      }
 114  }
 115  add_filter( 'update_footer', 'core_update_footer' );
 116  
 117  function update_nag() {
 118      global $pagenow;
 119  
 120      if ( 'update-core.php' == $pagenow )
 121          return;
 122  
 123      $cur = get_preferred_from_update_core();
 124  
 125      if ( ! isset( $cur->response ) || $cur->response != 'upgrade' )
 126          return false;
 127  
 128      if ( current_user_can('manage_options') )
 129          $msg = sprintf( __('WordPress %1$s is available! <a href="%2$s">Please update now</a>.'), $cur->current, 'update-core.php' );
 130      else
 131          $msg = sprintf( __('WordPress %1$s is available! Please notify the site administrator.'), $cur->current );
 132  
 133      echo "<div id='update-nag'>$msg</div>";
 134  }
 135  add_action( 'admin_notices', 'update_nag', 3 );
 136  
 137  // Called directly from dashboard
 138  function update_right_now_message() {
 139      $cur = get_preferred_from_update_core();
 140  
 141      $msg = sprintf( __('You are using <span class="b">WordPress %s</span>.'), $GLOBALS['wp_version'] );
 142      if ( isset( $cur->response ) && $cur->response == 'upgrade' && current_user_can('manage_options') )
 143          $msg .= " <a href='update-core.php' class='button'>" . sprintf( __('Update to %s'), $cur->current ? $cur->current : __( 'Latest' ) ) . '</a>';
 144  
 145      echo "<span id='wp-version-message'>$msg</span>";
 146  }
 147  
 148  function get_plugin_updates() {
 149      $all_plugins = get_plugins();
 150      $upgrade_plugins = array();
 151      $current = get_transient( 'update_plugins' );
 152      foreach ( (array)$all_plugins as $plugin_file => $plugin_data) {
 153          if ( isset( $current->response[ $plugin_file ] ) ) {
 154              $upgrade_plugins[ $plugin_file ] = (object) $plugin_data;
 155              $upgrade_plugins[ $plugin_file ]->update = $current->response[ $plugin_file ];
 156          }
 157      }
 158  
 159      return $upgrade_plugins;
 160  }
 161  
 162  function wp_plugin_update_rows() {
 163      $plugins = get_transient( 'update_plugins' );
 164      if ( isset($plugins->response) && is_array($plugins->response) ) {
 165          $plugins = array_keys( $plugins->response );
 166          foreach( $plugins as $plugin_file ) {
 167              add_action( "after_plugin_row_$plugin_file", 'wp_plugin_update_row', 10, 2 );
 168          }
 169      }
 170  }
 171  add_action( 'admin_init', 'wp_plugin_update_rows' );
 172  
 173  function wp_plugin_update_row( $file, $plugin_data ) {
 174      $current = get_transient( 'update_plugins' );
 175      if ( !isset( $current->response[ $file ] ) )
 176          return false;
 177  
 178      $r = $current->response[ $file ];
 179  
 180      $plugins_allowedtags = array('a' => array('href' => array(),'title' => array()),'abbr' => array('title' => array()),'acronym' => array('title' => array()),'code' => array(),'em' => array(),'strong' => array());
 181      $plugin_name = wp_kses( $plugin_data['Name'], $plugins_allowedtags );
 182  
 183      $details_url = admin_url('plugin-install.php?tab=plugin-information&plugin=' . $r->slug . '&TB_iframe=true&width=600&height=800');
 184  
 185      echo '<tr class="plugin-update-tr"><td colspan="3" class="plugin-update"><div class="update-message">';
 186      if ( ! current_user_can('update_plugins') )
 187          printf( __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%3$s">View version %4$s Details</a>.'), $plugin_name, esc_url($details_url), esc_attr($plugin_name), $r->new_version );
 188      else if ( empty($r->package) )
 189          printf( __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%3$s">View version %4$s Details</a> <em>automatic upgrade unavailable for this plugin</em>.'), $plugin_name, esc_url($details_url), esc_attr($plugin_name), $r->new_version );
 190      else
 191          printf( __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%3$s">View version %4$s Details</a> or <a href="%5$s">upgrade automatically</a>.'), $plugin_name, esc_url($details_url), esc_attr($plugin_name), $r->new_version, wp_nonce_url('update.php?action=upgrade-plugin&plugin=' . $file, 'upgrade-plugin_' . $file) );
 192  
 193      do_action( "in_plugin_update_message-$file", $plugin_data, $r );
 194  
 195      echo '</div></td></tr>';
 196  }
 197  
 198  function wp_update_plugin($plugin, $feedback = '') {
 199  
 200      if ( !empty($feedback) )
 201          add_filter('update_feedback', $feedback);
 202  
 203      include  ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
 204      $upgrader = new Plugin_Upgrader();
 205      return $upgrader->upgrade($plugin);
 206  }
 207  
 208  function get_theme_updates() {
 209      $themes = get_themes();
 210      $current = get_transient('update_themes');
 211      $update_themes = array();
 212  
 213      foreach ( $themes as $theme ) {
 214          $theme = (object) $theme;
 215          if ( isset($current->response[ $theme->Stylesheet ]) ) {
 216              $update_themes[$theme->Stylesheet] = $theme;
 217              $update_themes[$theme->Stylesheet]->update = $current->response[ $theme->Stylesheet ];
 218          }
 219      }
 220  
 221      return $update_themes;
 222  }
 223  
 224  function wp_update_theme($theme, $feedback = '') {
 225  
 226      if ( !empty($feedback) )
 227          add_filter('update_feedback', $feedback);
 228  
 229      include  ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
 230      $upgrader = new Theme_Upgrader();
 231      return $upgrader->upgrade($theme);
 232  }
 233  
 234  
 235  function wp_update_core($current, $feedback = '') {
 236  
 237      if ( !empty($feedback) )
 238          add_filter('update_feedback', $feedback);
 239  
 240      include  ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
 241      $upgrader = new Core_Upgrader();
 242      return $upgrader->upgrade($current);
 243  
 244  }
 245  
 246  function maintenance_nag() {
 247      global $upgrading;
 248      if ( ! isset( $upgrading ) )
 249          return false;
 250  
 251      if ( current_user_can('manage_options') )
 252          $msg = sprintf( __('An automated WordPress update has failed to complete - <a href="%s">please attempt the update again now</a>.'), 'update-core.php' );
 253      else
 254          $msg = __('An automated WordPress update has failed to complete! Please notify the site administrator.');
 255  
 256      echo "<div id='update-nag'>$msg</div>";
 257  }
 258  add_action( 'admin_notices', 'maintenance_nag' );
 259  
 260  ?>