Passed
Pull Request — master (#300)
by Alexander
06:13 queued 03:06
created

Validator::__construct()   A

Complexity

Conditions 1
Paths 1

Size

Total Lines 9
Code Lines 1

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 2
CRAP Score 1

Importance

Changes 0
Metric Value
eloc 1
c 0
b 0
f 0
dl 0
loc 9
ccs 2
cts 2
cp 1
rs 10
cc 1
nc 1
nop 2
crap 1
1
<?php
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declare(strict_types=1);
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namespace Yiisoft\Validator;
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use Closure;
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use InvalidArgumentException;
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use JetBrains\PhpStorm\Pure;
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use Psr\Container\ContainerExceptionInterface;
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use Psr\Container\NotFoundExceptionInterface;
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use Yiisoft\Validator\DataSet\ArrayDataSet;
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use Yiisoft\Validator\DataSet\ObjectDataSet;
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use Yiisoft\Validator\DataSet\MixedDataSet;
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use Yiisoft\Validator\Rule\Callback;
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use Yiisoft\Validator\Rule\Trait\PreValidateTrait;
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use function gettype;
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use function is_array;
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use function is_callable;
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use function is_int;
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use function is_object;
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/**
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 * Validator validates {@link DataSetInterface} against rules set for data set attributes.
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 */
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final class Validator implements ValidatorInterface
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{
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    use PreValidateTrait;
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    /**
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     * @var callable
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     */
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    private $defaultSkipOnEmptyCallback;
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    public function __construct(
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        private RuleHandlerResolverInterface $ruleHandlerResolver,
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        /**
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         * @var bool|callable|null
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         */
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        $defaultSkipOnEmpty = null,
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    ) {
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        $this->defaultSkipOnEmptyCallback = SkipOnEmptyNormalizer::normalize($defaultSkipOnEmpty);
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    }
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    /**
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     * @param DataSetInterface|mixed|RulesProviderInterface $data
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     * @param iterable<Closure|Closure[]|RuleInterface|RuleInterface[]>|null $rules
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     */
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    public function validate(mixed $data, ?iterable $rules = null): Result
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    {
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        $data = $this->normalizeDataSet($data);
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        if ($rules === null && $data instanceof RulesProviderInterface) {
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            $rules = $data->getRules();
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        }
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        $compoundResult = new Result();
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        $context = new ValidationContext($this, $data);
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        $results = [];
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        foreach ($rules ?? [] as $attribute => $attributeRules) {
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            $result = new Result();
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            $tempRule = is_array($attributeRules) ? $attributeRules : [$attributeRules];
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            $attributeRules = $this->normalizeRules($tempRule);
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            if (is_int($attribute)) {
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                $validatedData = $data->getData();
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                $validatedContext = $context;
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            } else {
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                $validatedData = $data->getAttributeValue($attribute);
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                $validatedContext = $context->withAttribute($attribute);
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            }
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            $tempResult = $this->validateInternal(
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                $validatedData,
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                $attributeRules,
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                $validatedContext
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            );
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            $result = $this->addErrors($result, $tempResult->getErrors());
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            $results[] = $result;
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        }
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        foreach ($results as $result) {
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            $compoundResult = $this->addErrors($compoundResult, $result->getErrors());
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        }
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        if ($data instanceof PostValidationHookInterface) {
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            $data->processValidationResult($compoundResult);
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        }
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        return $compoundResult;
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    }
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    #[Pure]
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    private function normalizeDataSet($data): DataSetInterface
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    {
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        if ($data instanceof DataSetInterface) {
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            return $data;
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        }
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        if (is_object($data)) {
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            return new ObjectDataSet($data);
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        }
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        if (is_array($data)) {
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            return new ArrayDataSet($data);
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        }
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        return new MixedDataSet($data);
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    }
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    /**
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     * @param $value
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     * @param iterable<Closure|Closure[]|RuleInterface|RuleInterface[]> $rules
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     * @param ValidationContext $context
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     *
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     * @throws ContainerExceptionInterface
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     * @throws NotFoundExceptionInterface
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     *
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     * @return Result
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     */
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    private function validateInternal($value, iterable $rules, ValidationContext $context): Result
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    {
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        $compoundResult = new Result();
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        foreach ($rules as $rule) {
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            if ($rule instanceof BeforeValidationInterface) {
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                $preValidateResult = $this->preValidate($value, $context, $rule);
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                if ($preValidateResult) {
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                    continue;
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                }
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            }
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            $ruleHandler = $this->ruleHandlerResolver->resolve($rule->getHandlerClassName());
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            $ruleResult = $ruleHandler->validate($value, $rule, $context);
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            if ($ruleResult->isValid()) {
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                continue;
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            }
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            $context->setParameter($this->parameterPreviousRulesErrored, true);
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            foreach ($ruleResult->getErrors() as $error) {
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                $valuePath = $error->getValuePath();
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                if ($context->getAttribute() !== null) {
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                    $valuePath = [$context->getAttribute(), ...$valuePath];
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                }
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                $compoundResult->addError($error->getMessage(), $valuePath);
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            }
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        }
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        return $compoundResult;
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    }
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    /**
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     * @param array $rules
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     *
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     * @return iterable<RuleInterface>
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     */
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    private function normalizeRules(iterable $rules): iterable
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    {
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        foreach ($rules as $rule) {
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            yield $this->normalizeRule($rule);
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        }
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    }
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    private function normalizeRule($rule): RuleInterface
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    {
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        if (is_callable($rule)) {
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            return new Callback($rule);
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        }
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        if (!$rule instanceof RuleInterface) {
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            throw new InvalidArgumentException(
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                sprintf(
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                    'Rule should be either an instance of %s or a callable, %s given.',
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                    RuleInterface::class,
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                    gettype($rule)
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                )
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            );
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        }
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        if ($rule instanceof SkipOnEmptyInterface && $rule->getSkipOnEmpty() === null) {
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            $rule = $rule->skipOnEmpty($this->defaultSkipOnEmptyCallback);
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        }
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        return $rule;
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    }
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    private function addErrors(Result $result, array $errors): Result
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    {
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        foreach ($errors as $error) {
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            $result->addError($error->getMessage(), $error->getValuePath());
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        }
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        return $result;
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    }
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}
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