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   1  <?php
   2  /**
   3   * Multisite upgrade administration panel.
   4   *
   5   * @package WordPress
   6   * @subpackage Multisite
   7   * @since 3.0.0
   8   */
   9  
  10  /** Load WordPress Administration Bootstrap */
  11  require_once( dirname( __FILE__ ) . '/admin.php' );
  12  
  13  if ( ! is_multisite() )
  14      wp_die( __( 'Multisite support is not enabled.' ) );
  15  
  16  require_once( ABSPATH . WPINC . '/http.php' );
  17  
  18  $title = __( 'Upgrade Network' );
  19  $parent_file = 'upgrade.php';
  20  
  21  get_current_screen()->add_help_tab( array(
  22      'id'      => 'overview',
  23      'title'   => __('Overview'),
  24      'content' =>
  25          '<p>' . __('Only use this screen once you have updated to a new version of WordPress through Updates/Available Updates (via the Network Administration navigation menu or the Toolbar). Clicking the Upgrade Network button will step through each site in the network, five at a time, and make sure any database updates are applied.') . '</p>' .
  26          '<p>' . __('If a version update to core has not happened, clicking this button won&#8217;t affect anything.') . '</p>' .
  27          '<p>' . __('If this process fails for any reason, users logging in to their sites will force the same update.') . '</p>'
  28  ) );
  29  
  30  get_current_screen()->set_help_sidebar(
  31      '<p><strong>' . __('For more information:') . '</strong></p>' .
  32      '<p>' . __('<a href="http://codex.wordpress.org/Network_Admin_Updates_Screen" target="_blank">Documentation on Upgrade Network</a>') . '</p>' .
  33      '<p>' . __('<a href="http://wordpress.org/support/" target="_blank">Support Forums</a>') . '</p>'
  34  );
  35  
  36  require_once ( ABSPATH . 'wp-admin/admin-header.php' );
  37  
  38  if ( ! current_user_can( 'manage_network' ) )
  39      wp_die( __( 'You do not have permission to access this page.' ) );
  40  
  41  echo '<div class="wrap">';
  42  echo '<h2>' . __( 'Upgrade Network' ) . '</h2>';
  43  
  44  $action = isset($_GET['action']) ? $_GET['action'] : 'show';
  45  
  46  switch ( $action ) {
  47      case "upgrade":
  48          $n = ( isset($_GET['n']) ) ? intval($_GET['n']) : 0;
  49  
  50          if ( $n < 5 ) {
  51              global $wp_db_version;
  52              update_site_option( 'wpmu_upgrade_site', $wp_db_version );
  53          }
  54  
  55          $blogs = $wpdb->get_results( "SELECT * FROM {$wpdb->blogs} WHERE site_id = '{$wpdb->siteid}' AND spam = '0' AND deleted = '0' AND archived = '0' ORDER BY registered DESC LIMIT {$n}, 5", ARRAY_A );
  56          if ( empty( $blogs ) ) {
  57              echo '<p>' . __( 'All done!' ) . '</p>';
  58              break;
  59          }
  60          echo "<ul>";
  61          foreach ( (array) $blogs as $details ) {
  62              switch_to_blog( $details['blog_id'] );
  63              $siteurl = site_url();
  64              $upgrade_url = admin_url( 'upgrade.php?step=upgrade_db' );
  65              restore_current_blog();
  66              echo "<li>$siteurl</li>";
  67              $response = wp_remote_get( $upgrade_url, array( 'timeout' => 120, 'httpversion' => '1.1' ) );
  68              if ( is_wp_error( $response ) )
  69                  wp_die( sprintf( __( 'Warning! Problem updating %1$s. Your server may not be able to connect to sites running on it. Error message: <em>%2$s</em>' ), $siteurl, $response->get_error_message() ) );
  70              do_action( 'after_mu_upgrade', $response );
  71              do_action( 'wpmu_upgrade_site', $details[ 'blog_id' ] );
  72          }
  73          echo "</ul>";
  74          ?><p><?php _e( 'If your browser doesn&#8217;t start loading the next page automatically, click this link:' ); ?> <a class="button" href="upgrade.php?action=upgrade&amp;n=<?php echo ($n + 5) ?>"><?php _e("Next Sites"); ?></a></p>
  75          <script type='text/javascript'>
  76          <!--
  77  		function nextpage() {
  78              location.href = "upgrade.php?action=upgrade&n=<?php echo ($n + 5) ?>";
  79          }
  80          setTimeout( "nextpage()", 250 );
  81          //-->
  82          </script><?php
  83      break;
  84      case 'show':
  85      default:
  86          if ( get_site_option( 'wpmu_upgrade_site' ) != $GLOBALS['wp_db_version'] ) :
  87          ?>
  88          <h3><?php _e( 'Database Upgrade Required' ); ?></h3>
  89          <p><?php _e( 'WordPress has been updated! Before we send you on your way, we need to individually upgrade the sites in your network.' ); ?></p>
  90          <?php endif; ?>
  91  
  92          <p><?php _e( 'The database upgrade process may take a little while, so please be patient.' ); ?></p>
  93          <p><a class="button" href="upgrade.php?action=upgrade"><?php _e( 'Upgrade Network' ); ?></a></p>
  94          <?php
  95          do_action( 'wpmu_upgrade_page' );
  96      break;
  97  }
  98  ?>
  99  </div>
 100  
 101  <?php include ( ABSPATH . 'wp-admin/admin-footer.php' ); ?>