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   1  <?php
   2  /**
   3   * Messages: Unread action handler.
   4   *
   5   * @package BuddyPress
   6   * @subpackage MessageActions
   7   * @since 3.0.0
   8   */
   9  
  10  /**
  11   * Handle marking a single message thread as unread.
  12   *
  13   * @since 2.2.0
  14   *
  15   * @return bool Returns false on failure. Otherwise redirects back to the
  16   *              message box URL.
  17   */
  18  function bp_messages_action_mark_unread() {
  19  
  20      if ( ! bp_is_messages_component() || bp_is_current_action( 'notices' ) || ! bp_is_action_variable( 'unread', 0 ) ) {
  21          return false;
  22      }
  23  
  24      $action = ! empty( $_GET['action'] ) ? $_GET['action'] : '';
  25      $nonce  = ! empty( $_GET['_wpnonce'] ) ? $_GET['_wpnonce'] : '';
  26      $id     = ! empty( $_GET['message_id'] ) ? intval( $_GET['message_id'] ) : '';
  27  
  28      // Bail if no action or no ID.
  29      if ( 'unread' !== $action || empty( $id ) || empty( $nonce ) ) {
  30          return false;
  31      }
  32  
  33      // Check the nonce.
  34      if ( ! bp_verify_nonce_request( 'bp_message_thread_mark_unread_' . $id ) ) {
  35          return false;
  36      }
  37  
  38      // Check access to the message and mark unread.
  39      if ( messages_check_thread_access( $id ) || bp_current_user_can( 'bp_moderate' ) ) {
  40          messages_mark_thread_unread( $id );
  41          bp_core_add_message( __( 'Message marked unread.', 'buddypress' ) );
  42      } else {
  43          bp_core_add_message( __( 'There was a problem marking that message.', 'buddypress' ), 'error' );
  44      }
  45  
  46      // Redirect back to the message box URL.
  47      bp_core_redirect( bp_displayed_user_domain() . bp_get_messages_slug() . '/' . bp_current_action() );
  48  }
  49  add_action( 'bp_actions', 'bp_messages_action_mark_unread' );