Validates user authentication credentials.

Parameters

string $identifier: The user identifier to authenticate. Usually the username.

Return value

Drupal\User\UserInterface|false The user account on success, or FALSE on failure to authenticate.

Overrides UserAuthenticationInterface::lookupAccount

File

core/modules/user/src/UserAuthentication.php, line 62

Class

UserAuthentication

Validates user authentication credentials.

Namespace

Drupal\user

Code

public function lookupAccount($identifier) : UserInterface|false {
  if (!empty($identifier)) {
    $account_search = $this->entityTypeManager
      ->getStorage('user')
      ->loadByProperties([
      'name' => $identifier,
    ]);
    if ($account = reset($account_search)) {
      return $account;
    }
  }
  return FALSE;
}

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