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<?php |
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declare(strict_types=1); |
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namespace Roukmoute\HashidsBundle\ValueResolver; |
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use Hashids\HashidsInterface; |
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use Roukmoute\HashidsBundle\Attribute\Hashid; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpKernel\Controller\ValueResolverInterface; |
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use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata; |
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class HashidsValueResolver implements ValueResolverInterface |
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{ |
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public function __construct( |
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private readonly HashidsInterface $hashids, |
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private readonly bool $passthrough, |
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private readonly bool $autoConvert, |
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private readonly string $alphabet, |
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) { |
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} |
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/** |
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* @return iterable<int> |
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*/ |
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public function resolve(Request $request, ArgumentMetadata $argument): iterable |
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{ |
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$name = $argument->getName(); |
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$hashidAttribute = $this->getHashidAttribute($argument); |
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$routeParameter = $hashidAttribute?->parameter ?? $name; |
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[$hash, $isExplicit] = $this->getHash($request, $routeParameter, $hashidAttribute !== null); |
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if ($this->isSkippable($hash)) { |
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return []; |
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} |
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$hashids = $this->hashids->decode($hash); |
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if ($this->hasHashidDecoded($hashids)) { |
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/** @var int $decodedValue */ |
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$decodedValue = reset($hashids); |
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if ($this->passthrough) { |
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$request->attributes->set($name, $decodedValue); |
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return []; |
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} |
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return [$decodedValue]; |
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} |
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if ($isExplicit) { |
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throw new \LogicException(sprintf('Unable to decode parameter "%s".', $name)); |
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} |
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return []; |
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} |
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private function getHashidAttribute(ArgumentMetadata $argument): ?Hashid |
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{ |
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/** @var Hashid[] $attributes */ |
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$attributes = $argument->getAttributes(Hashid::class, ArgumentMetadata::IS_INSTANCEOF); |
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return $attributes[0] ?? null; |
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} |
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/** |
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* @return array{0: string, 1: bool} |
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*/ |
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private function getHash(Request $request, string $name, bool $hasHashidAttribute): array |
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{ |
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if (empty($name)) { |
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return ['', false]; |
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} |
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$hash = $request->attributes->get('_hash_' . $name); |
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if (isset($hash) && is_string($hash)) { |
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return [$hash, true]; |
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} |
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if ($this->autoConvert || $hasHashidAttribute) { |
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$hash = $request->attributes->get($name); |
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if (is_string($hash)) { |
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return [$hash, $hasHashidAttribute]; |
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} |
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} |
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$hash = $this->getHashFromAliases($request); |
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if ($hash !== '') { |
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return [$hash, true]; |
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} |
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return ['', false]; |
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} |
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private function getHashFromAliases(Request $request): string |
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{ |
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$hash = ''; |
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if (!$request->attributes->has('hashids_prevent_alias')) { |
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foreach (['hashid', 'id'] as $alias) { |
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if ($request->attributes->has($alias)) { |
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$aliasAttribute = $request->attributes->get($alias); |
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if (!is_string($aliasAttribute)) { |
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continue; |
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} |
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$hash = $aliasAttribute; |
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$request->attributes->set('hashids_prevent_alias', true); |
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break; |
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} |
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} |
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} |
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return $hash; |
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} |
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private function isSkippable(string $hash): bool |
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{ |
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return empty($hash) || !$this->allCharsAreInAlphabet($hash); |
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} |
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private function allCharsAreInAlphabet(string $hash): bool |
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{ |
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return (bool) preg_match(sprintf('{^[%s]+$}', preg_quote($this->alphabet, '{')), $hash); |
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} |
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/** |
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* @param array<int, ?int> $hashids |
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*/ |
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private function hasHashidDecoded(array $hashids): bool |
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{ |
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return is_int(reset($hashids)); |
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} |
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} |
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roukmoute /
hashids-bundle
