function UserNameConstraintValidator::validate

File

core/modules/user/src/Plugin/Validation/Constraint/UserNameConstraintValidator.php, line 18

Class

UserNameConstraintValidator

Validates the UserName constraint.

Namespace

Code

public function validate($items, Constraint $constraint) : void {
    if (empty($items) || $items instanceof FieldItemListInterface && $items->isEmpty()) {
        $this->context
            ->addViolation($constraint->emptyMessage);
        return;
    }
    $name = $items instanceof FieldItemListInterface ? $items->first()->value : $items;
    if (str_starts_with($name, ' ')) {
        $this->context
            ->addViolation($constraint->spaceBeginMessage);
    }
    if (str_ends_with($name, ' ')) {
        $this->context
            ->addViolation($constraint->spaceEndMessage);
    }
    if (str_contains($name, '  ')) {
        $this->context
            ->addViolation($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,
        ]);
    }
}