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<?php |
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namespace Lneicelis\Transformer\Pipe; |
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use Lneicelis\Transformer\Contract\CanGuard; |
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use Lneicelis\Transformer\Contract\CanPipe; |
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use Lneicelis\Transformer\Contract\HasAccessConfig; |
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use Lneicelis\Transformer\Exception\AccessDeniedException; |
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use Lneicelis\Transformer\Exception\TransformerNotFoundException; |
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use Lneicelis\Transformer\TransformerRegistry; |
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use Lneicelis\Transformer\ValueObject\Context; |
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use Lneicelis\Transformer\ValueObject\Path; |
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class AccessControlPipe implements CanPipe |
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{ |
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/** @var TransformerRegistry */ |
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private $transformerRepository; |
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/** @var CanGuard[] */ |
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private $guardByName = []; |
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/** |
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* @param TransformerRegistry $transformerRepository |
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* @param array $guards |
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*/ |
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public function __construct(TransformerRegistry $transformerRepository, array $guards = []) |
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{ |
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$this->transformerRepository = $transformerRepository; |
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foreach ($guards as $guard) { |
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$this->addGuard($guard); |
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} |
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} |
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public function addGuard(CanGuard $guard): void |
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{ |
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$this->guardByName[$guard->getName()] = $guard; |
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} |
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/** |
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* @param object $resource |
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* @param Context $context |
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* @param $data |
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* @param Path $path |
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* @return mixed |
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* @throws TransformerNotFoundException |
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* @throws AccessDeniedException |
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*/ |
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public function pipe($resource, Context $context, Path $path, $data) |
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{ |
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$this->assertCanAccess($resource, $context, $path); |
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return $data; |
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} |
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/** |
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* @param $resource |
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* @param Context $context |
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* @param Path $path |
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* @throws TransformerNotFoundException |
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* @throws AccessDeniedException |
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*/ |
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private function assertCanAccess($resource, Context $context, Path $path): void { |
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$transformer = $this->transformerRepository->getTransformer($resource); |
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if (! $transformer instanceof HasAccessConfig) { |
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return; |
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} |
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$optionalProps = $this->getCurrentPathSchemaProperties($path, $context->getSchema()); |
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$accessConfig = $transformer->getAccessConfig(); |
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$defaultAccessGroups = $accessConfig->getDefaultGroups(); |
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$accessGroupsByProperty = $accessConfig->getGroupsByProperty(); |
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$optionalPropsAcl = $this->pick($accessGroupsByProperty, $optionalProps); |
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$allAcl = array_unique(array_merge($defaultAccessGroups, ...array_values($optionalPropsAcl))); |
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foreach ($allAcl as $acl) { |
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$guard = $this->guardByName[$acl]; |
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if (! $guard->canAccess($resource, $context)) { |
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throw new AccessDeniedException('test'); |
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} |
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} |
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} |
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private function pick(array $array, array $keys) |
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{ |
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return array_filter($array, function (string $key) use ($keys): bool { |
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return in_array($key, $keys, true); |
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}, ARRAY_FILTER_USE_KEY); |
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} |
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private function getCurrentPathSchemaProperties(Path $path, array $schema) |
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{ |
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$schema = $this->getPathSchema($path, $schema); |
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return $this->getProperties($schema); |
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} |
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private function getProperties(array $schema): array |
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{ |
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return array_map(function ($value, $key) { |
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return is_string($value) ? $value : $key; |
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}, $schema, array_keys($schema)); |
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} |
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private function getPathSchema(Path $path, array $schema): array |
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{ |
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$segments = array_filter($path->getSegments(), function ($segment) { |
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return ! is_numeric($segment); |
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}); |
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return $this->arrayGet($schema, $segments, []); |
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} |
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private function arrayGet(array $array, array $path, $default): array |
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{ |
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foreach ($path as $key) { |
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if (! array_key_exists($key, $array)) { |
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return $default; |
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} |
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$array = $array[$key]; |
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} |
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return $array; |
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} |
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} |
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lneicelis /
transformer
