function FileValidator::validate

File

core/modules/file/src/Validation/FileValidator.php, line 39

Class

FileValidator

Provides a class for file validation.

Namespace

Code

public function validate(FileInterface $file, array $validators) : ConstraintViolationListInterface {
    $constraints = [];
    foreach ($validators as $validator => $options) {
        // Create the constraint.
        // Options are an associative array of constraint properties and values.
        $constraints[] = $this->constraintManager
            ->create($validator, $options);
    }
    // Get the typed data.
    $fileTypedData = $file->getTypedData();
    $violations = $this->validator
        ->validate($fileTypedData, $constraints);
    $this->eventDispatcher
        ->dispatch(new FileValidationEvent($file, $violations));
    // Always check the insecure upload constraint.
    if (count($violations) === 0) {
        $insecureUploadConstraint = $this->constraintManager
            ->create('FileExtensionSecure', []);
        $violations = $this->validator
            ->validate($fileTypedData, $insecureUploadConstraint);
    }
    return $violations;
}