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<?php |
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declare(strict_types=1); |
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namespace BEAR\Resource\Interceptor; |
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use BEAR\Resource\Annotation\JsonSchema; |
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use BEAR\Resource\Code; |
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use BEAR\Resource\Exception\JsonSchemaErrorException; |
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use BEAR\Resource\Exception\JsonSchemaException; |
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use BEAR\Resource\Exception\JsonSchemaNotFoundException; |
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use BEAR\Resource\ResourceObject; |
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use function is_string; |
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use JsonSchema\Constraints\Constraint; |
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use JsonSchema\Validator; |
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use Ray\Aop\MethodInterceptor; |
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use Ray\Aop\MethodInvocation; |
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use Ray\Aop\ReflectionMethod; |
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use Ray\Aop\WeavedInterface; |
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use Ray\Di\Di\Named; |
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final class JsonSchemaInterceptor implements MethodInterceptor |
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{ |
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/** |
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* @var string |
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*/ |
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private $schemaDir; |
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/** |
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* @var string |
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*/ |
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private $validateDir; |
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/** |
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* @var null|string |
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*/ |
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private $schemaHost; |
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/** |
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* @Named("schemaDir=json_schema_dir,validateDir=json_validate_dir,schemaHost=json_schema_host") |
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*/ |
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public function __construct(string $schemaDir, string $validateDir, string $schemaHost = null) |
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{ |
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$this->schemaDir = $schemaDir; |
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$this->validateDir = $validateDir; |
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$this->schemaHost = $schemaHost; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function invoke(MethodInvocation $invocation) |
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{ |
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/** @var ReflectionMethod $method */ |
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$method = $invocation->getMethod(); |
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/** @var JsonSchema $jsonSchema */ |
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$jsonSchema = $method->getAnnotation(JsonSchema::class); |
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if ($jsonSchema->params) { |
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$arguments = $this->getNamedArguments($invocation); |
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$this->validateRequest($jsonSchema, $arguments); |
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} |
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/** @var ResourceObject $ro */ |
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$ro = $invocation->proceed(); |
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if ($ro->code === 200 || $ro->code == 201) { |
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$this->validateResponse($jsonSchema, $ro); |
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} |
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if (is_string($this->schemaHost)) { |
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$ro->headers['Link'] = sprintf('<%s%s>; rel="describedby"', $this->schemaHost, $jsonSchema->schema); |
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} |
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return $ro; |
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} |
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private function validateRequest(JsonSchema $jsonSchema, array $arguments) |
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{ |
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$schemaFile = $this->validateDir . '/' . $jsonSchema->params; |
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$this->validateFileExists($schemaFile); |
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$this->validate($arguments, $schemaFile); |
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} |
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private function validateResponse(JsonSchema $jsonSchema, ResourceObject $ro) |
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{ |
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$schemaFile = $this->getSchemaFile($jsonSchema, $ro); |
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$body = isset($ro->body[$jsonSchema->key]) ? $ro->body[$jsonSchema->key] : $ro->body; |
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$this->validate($body, $schemaFile); |
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} |
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private function validate($scanObject, $schemaFile) |
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{ |
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$validator = new Validator; |
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$schema = (object) ['$ref' => 'file://' . $schemaFile]; |
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$validator->validate($scanObject, $schema, Constraint::CHECK_MODE_TYPE_CAST); |
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$isValid = $validator->isValid(); |
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if ($isValid) { |
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return; |
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} |
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$e = null; |
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foreach ($validator->getErrors() as $error) { |
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$msg = sprintf('[%s] %s', $error['property'], $error['message']); |
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$e = $e ? new JsonSchemaErrorException($msg, 0, $e) : new JsonSchemaErrorException($msg); |
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} |
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throw new JsonSchemaException($schemaFile, Code::ERROR, $e); |
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} |
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private function getSchemaFile(JsonSchema $jsonSchema, ResourceObject $ro) : string |
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{ |
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if (! $jsonSchema->schema) { |
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// for BC only |
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$ref = new \ReflectionClass($ro); |
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if (! $ref instanceof \ReflectionClass) { |
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throw new \ReflectionException(get_class($ro)); // @codeCoverageIgnore |
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} |
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$roFileName = $ro instanceof WeavedInterface ? $roFileName = $ref->getParentClass()->getFileName() : $ref->getFileName(); |
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$bcFile = str_replace('.php', '.json', $roFileName); |
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if (file_exists($bcFile)) { |
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return $bcFile; |
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} |
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} |
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$schemaFile = $this->schemaDir . '/' . $jsonSchema->schema; |
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$this->validateFileExists($schemaFile); |
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return $schemaFile; |
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} |
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private function validateFileExists(string $schemaFile) |
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{ |
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if (! file_exists($schemaFile) || is_dir($schemaFile)) { |
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throw new JsonSchemaNotFoundException($schemaFile); |
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} |
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} |
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private function getNamedArguments(MethodInvocation $invocation) |
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{ |
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$parameters = $invocation->getMethod()->getParameters(); |
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$values = $invocation->getArguments(); |
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$arguments = []; |
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foreach ($parameters as $index => $parameter) { |
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$arguments[$parameter->name] = $values[$index] ?? $parameter->getDefaultValue(); |
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} |
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return $arguments; |
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} |
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} |
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bearsunday /
BEAR.Resource
