public function UserNameConstraintValidator::validate in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/user/src/Plugin/Validation/Constraint/UserNameConstraintValidator.php \Drupal\user\Plugin\Validation\Constraint\UserNameConstraintValidator::validate()

File

core/modules/user/src/Plugin/Validation/Constraint/UserNameConstraintValidator.php, line 17

Class

UserNameConstraintValidator

Validates the UserName constraint.

Namespace

Drupal\user\Plugin\Validation\Constraint

Code

public function validate($items, Constraint $constraint) {
  if (!isset($items) || !$items->value) {
    $this->context
      ->addViolation($constraint->emptyMessage);
    return;
  }
  $name = $items
    ->first()->value;
  if (substr($name, 0, 1) == ' ') {
    $this->context
      ->addViolation($constraint->spaceBeginMessage);
  }
  if (substr($name, -1) == ' ') {
    $this->context
      ->addViolation($constraint->spaceEndMessage);
  }
  if (strpos($name, '  ') !== FALSE) {
    $this->context
      ->addViolation($constraint->multipleSpacesMessage);
  }
  if (preg_match('/[^\\x{80}-\\x{F7} a-z0-9@+_.\'-]/i', $name) || preg_match('/[\\x{80}-\\x{A0}' . '\\x{AD}' . '\\x{2000}-\\x{200F}' . '\\x{2028}-\\x{202F}' . '\\x{205F}-\\x{206F}' . '\\x{FEFF}' . '\\x{FF01}-\\x{FF60}' . '\\x{FFF9}-\\x{FFFD}' . '\\x{0}-\\x{1F}]/u', $name)) {
    $this->context
      ->addViolation($constraint->illegalMessage);
  }
  if (mb_strlen($name) > UserInterface::USERNAME_MAX_LENGTH) {
    $this->context
      ->addViolation($constraint->tooLongMessage, [
      '%name' => $name,
      '%max' => UserInterface::USERNAME_MAX_LENGTH,
    ]);
  }
}