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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-dismissed 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_site_option( 'dismissed_update_core' );
  35      if ( !is_array( $dismissed ) ) $dismissed = array();
  36      $from_api = get_site_transient( 'update_core' );
  37      if ( empty($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_site_option( 'dismissed_update_core' );
  61      $dismissed[ $update->current.'|'.$update->locale ] = true;
  62      return update_site_option( 'dismissed_update_core', $dismissed );
  63  }
  64  
  65  function undismiss_core_update( $version, $locale ) {
  66      $dismissed = get_site_option( 'dismissed_update_core' );
  67      $key = $version.'|'.$locale;
  68      if ( !isset( $dismissed[$key] ) ) return false;
  69      unset( $dismissed[$key] );
  70      return update_site_option( 'dismissed_update_core', $dismissed );
  71  }
  72  
  73  function find_core_update( $version, $locale ) {
  74      $from_api = get_site_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('update_core') )
  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>.' ), $GLOBALS['wp_version'], network_admin_url( 'update-core.php' ) );
 101      break;
 102  
 103      case 'upgrade' :
 104          return sprintf( '<strong>'.__( '<a href="%1$s">Get Version %2$s</a>' ).'</strong>', network_admin_url( 'update-core.php' ), $cur->current);
 105      break;
 106  
 107      case 'latest' :
 108      default :
 109          return sprintf( __( 'Version %s' ), $GLOBALS['wp_version'] );
 110      break;
 111      }
 112  }
 113  add_filter( 'update_footer', 'core_update_footer' );
 114  
 115  function update_nag() {
 116      if ( is_multisite() && !current_user_can('update_core') )
 117          return false;
 118  
 119      global $pagenow;
 120  
 121      if ( 'update-core.php' == $pagenow )
 122          return;
 123  
 124      $cur = get_preferred_from_update_core();
 125  
 126      if ( ! isset( $cur->response ) || $cur->response != 'upgrade' )
 127          return false;
 128  
 129      if ( current_user_can('update_core') ) {
 130          $msg = sprintf( __('<a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> is available! <a href="%2$s">Please update now</a>.'), $cur->current, network_admin_url( 'update-core.php' ) );
 131      } else {
 132          $msg = sprintf( __('<a href="http://codex.wordpress.org/Version_%1$s">WordPress %1$s</a> is available! Please notify the site administrator.'), $cur->current );
 133      }
 134      echo "<div class='update-nag'>$msg</div>";
 135  }
 136  add_action( 'admin_notices', 'update_nag', 3 );
 137  
 138  // Called directly from dashboard
 139  function update_right_now_message() {
 140      $msg = sprintf( __('You are using <span class="b">WordPress %s</span>.'), $GLOBALS['wp_version'] );
 141  
 142      if ( current_user_can('update_core') ) {
 143          $cur = get_preferred_from_update_core();
 144  
 145          if ( isset( $cur->response ) && $cur->response == 'upgrade' )
 146              $msg .= " <a href='" . network_admin_url( 'update-core.php' ) . "' class='button'>" . sprintf( __('Update to %s'), $cur->current ? $cur->current : __( 'Latest' ) ) . '</a>';
 147      }
 148  
 149      echo "<span id='wp-version-message'>$msg</span>";
 150  }
 151  
 152  function get_plugin_updates() {
 153      $all_plugins = get_plugins();
 154      $upgrade_plugins = array();
 155      $current = get_site_transient( 'update_plugins' );
 156      foreach ( (array)$all_plugins as $plugin_file => $plugin_data) {
 157          if ( isset( $current->response[ $plugin_file ] ) ) {
 158              $upgrade_plugins[ $plugin_file ] = (object) $plugin_data;
 159              $upgrade_plugins[ $plugin_file ]->update = $current->response[ $plugin_file ];
 160          }
 161      }
 162  
 163      return $upgrade_plugins;
 164  }
 165  
 166  function wp_plugin_update_rows() {
 167      if ( !current_user_can('update_plugins' ) )
 168          return;
 169  
 170      $plugins = get_site_transient( 'update_plugins' );
 171      if ( isset($plugins->response) && is_array($plugins->response) ) {
 172          $plugins = array_keys( $plugins->response );
 173          foreach( $plugins as $plugin_file ) {
 174              add_action( "after_plugin_row_$plugin_file", 'wp_plugin_update_row', 10, 2 );
 175          }
 176      }
 177  }
 178  add_action( 'admin_init', 'wp_plugin_update_rows' );
 179  
 180  function wp_plugin_update_row( $file, $plugin_data ) {
 181      $current = get_site_transient( 'update_plugins' );
 182      if ( !isset( $current->response[ $file ] ) )
 183          return false;
 184  
 185      $r = $current->response[ $file ];
 186  
 187      $plugins_allowedtags = array('a' => array('href' => array(),'title' => array()),'abbr' => array('title' => array()),'acronym' => array('title' => array()),'code' => array(),'em' => array(),'strong' => array());
 188      $plugin_name = wp_kses( $plugin_data['Name'], $plugins_allowedtags );
 189  
 190      $details_url = self_admin_url('plugin-install.php?tab=plugin-information&plugin=' . $r->slug . '&section=changelog&TB_iframe=true&width=600&height=800');
 191  
 192      $wp_list_table = _get_list_table('WP_Plugins_List_Table');
 193  
 194      if ( is_network_admin() || !is_multisite() ) {
 195          echo '<tr class="plugin-update-tr"><td colspan="' . $wp_list_table->get_column_count() . '" class="plugin-update colspanchange"><div class="update-message">';
 196  
 197          if ( ! current_user_can('update_plugins') )
 198              printf( __('There is a new version of %1$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), $r->new_version );
 199          else if ( empty($r->package) )
 200              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 update is unavailable for this plugin.</em>'), $plugin_name, esc_url($details_url), esc_attr($plugin_name), $r->new_version );
 201          else
 202              printf( __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%3$s">View version %4$s details</a> or <a href="%5$s">update automatically</a>.'), $plugin_name, esc_url($details_url), esc_attr($plugin_name), $r->new_version, wp_nonce_url( self_admin_url('update.php?action=upgrade-plugin&plugin=') . $file, 'upgrade-plugin_' . $file) );
 203  
 204          do_action( "in_plugin_update_message-$file", $plugin_data, $r );
 205  
 206          echo '</div></td></tr>';
 207      }
 208  }
 209  
 210  function wp_update_plugin($plugin, $feedback = '') {
 211      if ( !empty($feedback) )
 212          add_filter('update_feedback', $feedback);
 213  
 214      include  ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
 215      $upgrader = new Plugin_Upgrader();
 216      return $upgrader->upgrade($plugin);
 217  }
 218  
 219  function get_theme_updates() {
 220      $themes = get_themes();
 221      $current = get_site_transient('update_themes');
 222      $update_themes = array();
 223  
 224      foreach ( $themes as $theme ) {
 225          $theme = (object) $theme;
 226          if ( isset($current->response[ $theme->Stylesheet ]) ) {
 227              $update_themes[$theme->Stylesheet] = $theme;
 228              $update_themes[$theme->Stylesheet]->update = $current->response[ $theme->Stylesheet ];
 229          }
 230      }
 231  
 232      return $update_themes;
 233  }
 234  
 235  function wp_update_theme($theme, $feedback = '') {
 236      if ( !empty($feedback) )
 237          add_filter('update_feedback', $feedback);
 238  
 239      include  ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
 240      $upgrader = new Theme_Upgrader();
 241      return $upgrader->upgrade($theme);
 242  }
 243  
 244  function wp_theme_update_rows() {
 245      if ( !current_user_can('update_themes' ) )
 246          return;
 247  
 248      $themes = get_site_transient( 'update_themes' );
 249      if ( isset($themes->response) && is_array($themes->response) ) {
 250          $themes = array_keys( $themes->response );
 251  
 252          foreach( $themes as $theme ) {
 253              add_action( "after_theme_row_$theme", 'wp_theme_update_row', 10, 2 );
 254          }
 255      }
 256  }
 257  add_action( 'admin_init', 'wp_theme_update_rows' );
 258  
 259  function wp_theme_update_row( $theme_key, $theme ) {
 260      $current = get_site_transient( 'update_themes' );
 261      if ( !isset( $current->response[ $theme_key ] ) )
 262          return false;
 263      $r = $current->response[ $theme_key ];
 264      $themes_allowedtags = array('a' => array('href' => array(),'title' => array()),'abbr' => array('title' => array()),'acronym' => array('title' => array()),'code' => array(),'em' => array(),'strong' => array());
 265      $theme_name = wp_kses( $theme['Name'], $themes_allowedtags );
 266  
 267      $details_url = self_admin_url("theme-install.php?tab=theme-information&theme=$theme_key&TB_iframe=true&width=600&height=400");
 268  
 269      $wp_list_table = _get_list_table('WP_MS_Themes_List_Table');
 270  
 271      echo '<tr class="plugin-update-tr"><td colspan="' . $wp_list_table->get_column_count() . '" class="plugin-update colspanchange"><div class="update-message">';
 272      if ( ! current_user_can('update_themes') )
 273          printf( __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%3$s">View version %4$s details</a>.'), $theme['Name'], esc_url($details_url), esc_attr($theme['Name']), $r->new_version );
 274      else if ( empty( $r['package'] ) )
 275          printf( __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%3$s">View version %4$s details</a>. <em>Automatic update is unavailable for this theme.</em>'), $theme['Name'], esc_url($details_url), esc_attr($theme['Name']), $r['new_version'] );
 276      else
 277          printf( __('There is a new version of %1$s available. <a href="%2$s" class="thickbox" title="%3$s">View version %4$s details</a> or <a href="%5$s">update automatically</a>.'), $theme['Name'], esc_url($details_url), esc_attr($theme['Name']), $r['new_version'], wp_nonce_url( self_admin_url('update.php?action=upgrade-theme&theme=') . $theme_key, 'upgrade-theme_' . $theme_key) );
 278  
 279      do_action( "in_theme_update_message-$theme_key", $theme, $r );
 280  
 281      echo '</div></td></tr>';
 282  }
 283  
 284  function wp_update_core($current, $feedback = '') {
 285      if ( !empty($feedback) )
 286          add_filter('update_feedback', $feedback);
 287  
 288      include  ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
 289      $upgrader = new Core_Upgrader();
 290      return $upgrader->upgrade($current);
 291  
 292  }
 293  
 294  function maintenance_nag() {
 295      global $upgrading;
 296      if ( ! isset( $upgrading ) )
 297          return false;
 298  
 299      if ( current_user_can('update_core') )
 300          $msg = sprintf( __('An automated WordPress update has failed to complete - <a href="%s">please attempt the update again now</a>.'), 'update-core.php' );
 301      else
 302          $msg = __('An automated WordPress update has failed to complete! Please notify the site administrator.');
 303  
 304      echo "<div class='update-nag'>$msg</div>";
 305  }
 306  add_action( 'admin_notices', 'maintenance_nag' );