protected function GroupQueryAccessHandler::buildConditions in Group 2.0.x

Same name and namespace in other branches

8 src/Entity/Access/GroupQueryAccessHandler.php \Drupal\group\Entity\Access\GroupQueryAccessHandler::buildConditions()

Builds the conditions for the given operation and account.

Parameters

string $operation: The access operation. Usually one of "view", "update" or "delete".

\Drupal\Core\Session\AccountInterface $account: The user for which to restrict access.

Please note: Just like the AccessResult::cachePerPermissions problem outlined in https://www.drupal.org/project/drupal/issues/2628870, we also add current user dependent cache contexts here even though the passed in account might be different. This is a problem for core to fix but I wanted to give the heads up regardless.

Return value

\Drupal\entity\QueryAccess\ConditionGroup The conditions.

Overrides QueryAccessHandlerBase::buildConditions

File

src/Entity/Access/GroupQueryAccessHandler.php, line 61

Class

GroupQueryAccessHandler: Controls query access for group entities.

Namespace

Drupal\group\Entity\Access

Code

protected function buildConditions($operation, AccountInterface $account) {
  $conditions = new ConditionGroup('OR');

  // @todo Remove these lines once we kill the bypass permission.
  // If the account can bypass group access, we do not alter the query at all.
  $conditions
    ->addCacheContexts([
    'user.permissions',
  ]);
  if ($account
    ->hasPermission('bypass group access')) {
    return $conditions;
  }
  $permission = $this
    ->getPermissionName($operation);
  $conditions
    ->addCacheContexts([
    'user.group_permissions',
  ]);
  $calculated_permissions = $this->groupPermissionCalculator
    ->calculatePermissions($account);
  $allowed_ids = $allowed_any_by_status_ids = $allowed_own_by_status_ids = $member_group_ids = [];
  $check_published = $operation === 'view';
  foreach ($calculated_permissions
    ->getItems() as $item) {
    $identifier = $item
      ->getIdentifier();
    $scope = $item
      ->getScope();

    // Gather all of the groups the user is a member of.
    if ($scope === CGPII::SCOPE_GROUP) {
      $member_group_ids[] = $identifier;
    }
    if ($item
      ->hasPermission('administer group')) {
      $allowed_ids[$scope][] = $identifier;
    }
    elseif (!$check_published) {
      if ($item
        ->hasPermission($permission)) {
        $allowed_ids[$scope][] = $identifier;
      }
    }
    else {
      if ($item
        ->hasPermission($permission)) {
        $allowed_any_by_status_ids[$scope][1][] = $identifier;
      }
      if ($item
        ->hasPermission('view any unpublished group')) {
        $allowed_any_by_status_ids[$scope][0][] = $identifier;
      }
      if ($item
        ->hasPermission('view own unpublished group')) {
        $allowed_own_by_status_ids[$scope][0][] = $identifier;
      }
    }
  }

  // If no group type or group gave access, we deny access altogether.
  if (empty($allowed_ids) && empty($allowed_any_by_status_ids) && empty($allowed_own_by_status_ids)) {
    $conditions
      ->alwaysFalse();
    return $conditions;
  }

  // We might see multiple values in the $member_group_ids variable because we
  // looped over all calculated permissions multiple times.
  if (!empty($member_group_ids)) {
    $member_group_ids = array_unique($member_group_ids);
  }

  // Add the allowed group types to the query (if any).
  if (!empty($allowed_ids[CGPII::SCOPE_GROUP_TYPE])) {
    $status_conditions = new ConditionGroup();
    $status_conditions
      ->addCondition('type', array_unique($allowed_ids[CGPII::SCOPE_GROUP_TYPE]));

    // If the user had memberships, we need to make sure they are excluded
    // from group type based matches as the memberships' permissions take
    // precedence.
    if (!empty($member_group_ids)) {
      $status_conditions
        ->addCondition('id', $member_group_ids, 'NOT IN');
    }
    $conditions
      ->addCondition($status_conditions);
  }

  // Add the memberships with access to the query (if any).
  if (!empty($allowed_ids[CGPII::SCOPE_GROUP])) {
    $conditions
      ->addCondition('id', array_unique($allowed_ids[CGPII::SCOPE_GROUP]));
  }
  if ($check_published) {
    foreach ([
      0,
      1,
    ] as $status) {

      // Nothing gave (un)published access so bail out entirely.
      if (empty($allowed_any_by_status_ids[CGPII::SCOPE_GROUP_TYPE][$status]) && empty($allowed_any_by_status_ids[CGPII::SCOPE_GROUP][$status]) && empty($allowed_own_by_status_ids[CGPII::SCOPE_GROUP_TYPE][$status]) && empty($allowed_own_by_status_ids[CGPII::SCOPE_GROUP][$status])) {
        continue;
      }
      $status_conditions = new ConditionGroup();
      $status_conditions
        ->addCondition('status', $status);
      $status_conditions_inner = new ConditionGroup('OR');

      // Add the allowed group types to the query (if any).
      if (!empty($allowed_any_by_status_ids[CGPII::SCOPE_GROUP_TYPE][$status])) {
        $sub_condition = new ConditionGroup();
        $sub_condition
          ->addCondition('type', array_unique($allowed_any_by_status_ids[CGPII::SCOPE_GROUP_TYPE][$status]), 'IN');

        // If the user had memberships, we need to make sure they are excluded
        // from group type based matches as the memberships' permissions take
        // precedence.
        if (!empty($member_group_ids)) {
          $sub_condition
            ->addCondition('id', $member_group_ids, 'NOT IN');
        }
        $status_conditions_inner
          ->addCondition($sub_condition);
      }

      // Add the memberships with access to the query (if any).
      if (!empty($allowed_any_by_status_ids[CGPII::SCOPE_GROUP][$status])) {
        $status_conditions_inner
          ->addCondition('id', array_unique($allowed_any_by_status_ids[CGPII::SCOPE_GROUP][$status]), 'IN');
      }

      // Nothing gave owner access so try the next publication status.
      if (empty($allowed_own_by_status_ids[CGPII::SCOPE_GROUP_TYPE][$status]) && empty($allowed_own_by_status_ids[CGPII::SCOPE_GROUP][$status])) {
        $status_conditions
          ->addCondition($status_conditions_inner);
        $conditions
          ->addCondition($status_conditions);
        continue;
      }
      $conditions
        ->addCacheContexts([
        'user',
      ]);
      $status_owner_conditions = new ConditionGroup();
      $status_owner_conditions
        ->addCondition('uid', $account
        ->id());
      $status_owner_conditions_inner = new ConditionGroup('OR');

      // Add the allowed owner group types to the query (if any).
      if (!empty($allowed_own_by_status_ids[CGPII::SCOPE_GROUP_TYPE][$status])) {
        $sub_condition = new ConditionGroup();
        $sub_condition
          ->addCondition('type', array_unique($allowed_own_by_status_ids[CGPII::SCOPE_GROUP_TYPE][$status]), 'IN');

        // If the user had memberships, we need to make sure they are excluded
        // from group type based matches as the memberships' permissions take
        // precedence.
        if (!empty($member_group_ids)) {
          $sub_condition
            ->addCondition('id', $member_group_ids, 'NOT IN');
        }
        $status_owner_conditions_inner
          ->addCondition($sub_condition);
      }

      // Add the owner memberships with access to the query (if any).
      if (!empty($allowed_own_by_status_ids[CGPII::SCOPE_GROUP][$status])) {
        $status_owner_conditions_inner
          ->addCondition('id', array_unique($allowed_own_by_status_ids[CGPII::SCOPE_GROUP][$status]), 'IN');
      }
      $status_owner_conditions
        ->addCondition($status_owner_conditions_inner);
      $status_conditions_inner
        ->addCondition($status_owner_conditions);
      $status_conditions
        ->addCondition($status_conditions_inner);
      $conditions
        ->addCondition($status_conditions);
    }
  }
  return $conditions;
}

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