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   1  <?php
   2  /**
   3   * Multisite Administration hooks
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   * @since 4.3.0
   8   */
   9  
  10  // Media hooks.
  11  add_filter( 'wp_handle_upload_prefilter', 'check_upload_size' );
  12  
  13  // User hooks.
  14  add_action( 'admin_page_access_denied', '_access_denied_splash', 99 );
  15  
  16  // Site hooks.
  17  add_action( 'wpmueditblogaction', 'upload_space_setting' );
  18  
  19  // Network hooks.
  20  add_action( 'update_site_option_admin_email', 'wp_network_admin_email_change_notification', 10, 4 );
  21  
  22  // Post hooks.
  23  add_filter( 'wp_insert_post_data', 'avoid_blog_page_permalink_collision', 10, 2 );
  24  
  25  // Tools hooks.
  26  add_filter( 'import_allow_create_users', 'check_import_new_users' );
  27  
  28  // Notices hooks.
  29  add_action( 'admin_notices', 'site_admin_notice' );
  30  add_action( 'network_admin_notices', 'site_admin_notice' );
  31  
  32  // Update hooks.
  33  add_action( 'network_admin_notices', 'update_nag', 3 );
  34  add_action( 'network_admin_notices', 'maintenance_nag', 10 );
  35  
  36  // Network Admin hooks.
  37  add_action( 'add_site_option_new_admin_email', 'update_network_option_new_admin_email', 10, 2 );
  38  add_action( 'update_site_option_new_admin_email', 'update_network_option_new_admin_email', 10, 2 );