EntityAccessHelper.php in Open Social 8.7

Namespace

Drupal\entity_access_by_field

File

modules/custom/entity_access_by_field/src/EntityAccessHelper.php

<?php

namespace Drupal\entity_access_by_field;

use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Access\AccessResult;
use Drupal\node\NodeInterface;
use Drupal\group\Entity\GroupContent;
use Drupal\group\Entity\Group;

/**
 * Helper class for checking entity access.
 */
class EntityAccessHelper {

  /**
   * Array with values which need to be ignored.
   *
   * @todo Add group to ignored values (when outsider role is working).
   *
   * @return array
   *   An array containing a list of values to ignore.
   */
  public static function getIgnoredValues() {
    return [];
  }

  /**
   * NodeAccessCheck for given operation, node and user account.
   */
  public static function nodeAccessCheck(NodeInterface $node, $op, AccountInterface $account) {
    if ($op === 'view') {

      // Check published status.
      if (isset($node->status) && $node->status->value == NODE_NOT_PUBLISHED) {
        $unpublished_own = $account
          ->hasPermission('view own unpublished content');
        if ($node
          ->getOwnerId() !== $account
          ->id() || $node
          ->getOwnerId() === $account
          ->id() && !$unpublished_own) {
          return 1;
        }
      }
      $field_definitions = $node
        ->getFieldDefinitions();

      /* @var \Drupal\Core\Field\FieldConfigInterface $field_definition */
      foreach ($field_definitions as $field_name => $field_definition) {
        if ($field_definition
          ->getType() === 'entity_access_field') {
          $field_values = $node
            ->get($field_name)
            ->getValue();
          if (!empty($field_values)) {
            foreach ($field_values as $field_value) {
              if (isset($field_value['value'])) {
                if (in_array($field_value['value'], EntityAccessHelper::getIgnoredValues())) {
                  return 0;
                }
                $permission_label = $field_definition
                  ->id() . ':' . $field_value['value'];

                // When content is posted in a group and the account does not
                // have permission we return Access::ignore.
                if ($field_value['value'] === 'group') {

                  // Don't look no further.
                  if ($account
                    ->hasPermission('manage all groups')) {
                    return 0;
                  }
                  if (!$account
                    ->hasPermission('view ' . $permission_label . ' content')) {

                    // Lets verify if we are a member for flexible groups.
                    $groups = GroupContent::loadByEntity($node);
                    if (!empty($groups)) {
                      $group = reset($groups)
                        ->getGroup();
                      if ($group instanceof Group && !$group
                        ->getMember($account) && $group
                        ->getGroupType()
                        ->id() === 'flexible_group') {
                        return 1;
                      }
                    }
                    return 0;
                  }
                }
                if ($account
                  ->hasPermission('view ' . $permission_label . ' content')) {
                  return 2;
                }
                if ($account
                  ->id() !== 0 && $account
                  ->id() === $node
                  ->getOwnerId()) {
                  return 2;
                }
              }
            }
          }
          $access = FALSE;
        }
      }
      if (isset($access) && $access === FALSE) {
        return 1;
      }
    }
    return 0;
  }

  /**
   * Gets the Entity access for the given node.
   */
  public static function getEntityAccessResult(NodeInterface $node, $op, AccountInterface $account) {
    $access = EntityAccessHelper::nodeAccessCheck($node, $op, $account);
    switch ($access) {
      case 2:
        return AccessResult::allowed()
          ->cachePerPermissions()
          ->addCacheableDependency($node);
      case 1:
        return AccessResult::forbidden();
    }
    return AccessResult::neutral();
  }

}

Classes

Name	Description
EntityAccessHelper	Helper class for checking entity access.