100 lines
3.7 KiB
PHP
100 lines
3.7 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Validator\Constraints;
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use Symfony\Component\Validator\Constraint;
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use Symfony\Component\Validator\ConstraintValidator;
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use Symfony\Component\Validator\Exception\UnexpectedTypeException;
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use Symfony\Component\Validator\Exception\UnexpectedValueException;
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/**
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* @author Bernhard Schussek <bschussek@gmail.com>
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*/
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class LengthValidator extends ConstraintValidator
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{
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public function validate(mixed $value, Constraint $constraint): void
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{
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if (!$constraint instanceof Length) {
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throw new UnexpectedTypeException($constraint, Length::class);
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}
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if (null === $value) {
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return;
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}
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if (!\is_scalar($value) && !$value instanceof \Stringable) {
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throw new UnexpectedValueException($value, 'string');
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}
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$stringValue = (string) $value;
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if (null !== $constraint->normalizer) {
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$stringValue = ($constraint->normalizer)($stringValue);
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}
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try {
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$invalidCharset = !@mb_check_encoding($stringValue, $constraint->charset);
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} catch (\ValueError $e) {
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if (!str_starts_with($e->getMessage(), 'mb_check_encoding(): Argument #2 ($encoding) must be a valid encoding')) {
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throw $e;
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}
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$invalidCharset = true;
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}
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$length = $invalidCharset ? 0 : match ($constraint->countUnit) {
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Length::COUNT_BYTES => \strlen($stringValue),
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Length::COUNT_CODEPOINTS => mb_strlen($stringValue, $constraint->charset),
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Length::COUNT_GRAPHEMES => grapheme_strlen($stringValue),
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};
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if ($invalidCharset || false === ($length ?? false)) {
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$this->context->buildViolation($constraint->charsetMessage)
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->setParameter('{{ value }}', $this->formatValue($stringValue))
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->setParameter('{{ charset }}', $constraint->charset)
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->setInvalidValue($value)
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->setCode(Length::INVALID_CHARACTERS_ERROR)
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->addViolation();
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return;
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}
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if (null !== $constraint->max && $length > $constraint->max) {
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$exactlyOptionEnabled = $constraint->min == $constraint->max;
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$this->context->buildViolation($exactlyOptionEnabled ? $constraint->exactMessage : $constraint->maxMessage)
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->setParameter('{{ value }}', $this->formatValue($stringValue))
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->setParameter('{{ limit }}', $constraint->max)
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->setParameter('{{ value_length }}', $length)
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->setInvalidValue($value)
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->setPlural($constraint->max)
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->setCode($exactlyOptionEnabled ? Length::NOT_EQUAL_LENGTH_ERROR : Length::TOO_LONG_ERROR)
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->addViolation();
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return;
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}
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if (null !== $constraint->min && $length < $constraint->min) {
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$exactlyOptionEnabled = $constraint->min == $constraint->max;
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$this->context->buildViolation($exactlyOptionEnabled ? $constraint->exactMessage : $constraint->minMessage)
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->setParameter('{{ value }}', $this->formatValue($stringValue))
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->setParameter('{{ limit }}', $constraint->min)
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->setParameter('{{ value_length }}', $length)
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->setInvalidValue($value)
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->setPlural($constraint->min)
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->setCode($exactlyOptionEnabled ? Length::NOT_EQUAL_LENGTH_ERROR : Length::TOO_SHORT_ERROR)
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->addViolation();
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}
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}
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}
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