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<?php
declare(strict_types=1);
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Extbase\Validation;
use TYPO3\CMS\Extbase\Validation\Exception\NoSuchValidatorException;
use TYPO3\CMS\Extbase\Validation\Validator\ValidatorInterface;
/**
* Class TYPO3\CMS\Extbase\Validation\ValidatorClassNameResolver
*/
final class ValidatorClassNameResolver
{
/**
* This method is marked internal due to several facts:
*
* - The functionality is not 100% tested and still contains some bugs
* - The functionality might not be needed any longer if Extbase switches
* to the symfony/validator component.
*
* This method can be used by extension developers. As long as it remains,
* its functionality will not change. It might even become more stable.
* However, developers should be aware that this method might vanish
* without any deprecation.
*
* @param string $validatorIdentifier
* @throws NoSuchValidatorException
* @internal
*/
public static function resolve(string $validatorIdentifier): string
{
// Trim leading slash if $validatorName is FQCN like \TYPO3\CMS\Extbase\Validation\Validator\FloatValidator
$validatorIdentifier = ltrim($validatorIdentifier, '\\');
$validatorClassName = $validatorIdentifier;
if (strpbrk($validatorIdentifier, ':') !== false) {
// Found shorthand validator, either extbase or foreign extension
// NotEmpty or Acme.MyPck.Ext:MyValidator
[$vendorNamespace, $validatorBaseName] = explode(':', $validatorIdentifier);
// todo: at this point ($validatorIdentifier !== $vendorNamespace) is always true as $validatorIdentifier
// todo: contains a colon ":" and $vendorNamespace doesn't.
if ($validatorIdentifier !== $vendorNamespace && $validatorBaseName !== '') {
// Shorthand custom
if (str_contains($vendorNamespace, '.')) {
$extensionNameParts = explode('.', $vendorNamespace);
$vendorNamespace = array_pop($extensionNameParts);
$vendorName = implode('\\', $extensionNameParts);
$validatorClassName = $vendorName . '\\' . $vendorNamespace . '\\Validation\\Validator\\' . $validatorBaseName;
}
} else {
// todo: the only way to reach this path is to use a validator identifier like "Integer:"
// todo: as we are using $validatorIdentifier here, this path always fails.
// Shorthand built in
$validatorClassName = 'TYPO3\\CMS\\Extbase\\Validation\\Validator\\' . self::getValidatorType($validatorIdentifier);
}
} elseif (strpbrk($validatorIdentifier, '\\') === false) {
// Shorthand built in
$validatorClassName = 'TYPO3\\CMS\\Extbase\\Validation\\Validator\\' . self::getValidatorType($validatorIdentifier);
}
if (!str_ends_with($validatorClassName, 'Validator')) {
$validatorClassName .= 'Validator';
}
if (!class_exists($validatorClassName)) {
throw new NoSuchValidatorException('Validator class ' . $validatorClassName . ' does not exist', 1365799920);
}
if (!is_subclass_of($validatorClassName, ValidatorInterface::class)) {
throw new NoSuchValidatorException(
'Validator class ' . $validatorClassName . ' must implement ' . ValidatorInterface::class,
1365776838
);
}
return $validatorClassName;
}
/**
* Used to map PHP types to validator types.
*
* @param string $type Data type to unify
* @return string unified data type
*/
private static function getValidatorType(string $type): string
{
switch ($type) {
case 'int':
$type = 'Integer';
break;
case 'bool':
$type = 'Boolean';
break;
case 'double':
$type = 'Float';
break;
case 'numeric':
$type = 'Number';
break;
default:
$type = ucfirst($type);
}
return $type;
}
}