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<?php |
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namespace PhpJsonRpc\Server; |
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use PhpJsonRpc\Common\Interceptor\Interceptor; |
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use PhpJsonRpc\Core\Invoke\AbstractInvoke; |
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use PhpJsonRpc\Core\Invoke\Invoke; |
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use PhpJsonRpc\Core\Invoke\Error; |
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use PhpJsonRpc\Core\Invoke\Notification; |
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use PhpJsonRpc\Core\InvokeSpec; |
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use PhpJsonRpc\Error\InvalidRequestException; |
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use PhpJsonRpc\Error\ParseErrorException; |
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use PhpJsonRpc\Server\RequestParser\ParserContainer; |
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/** |
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* Request parser |
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*/ |
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class RequestParser |
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{ |
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/** |
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* @var Interceptor |
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*/ |
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private $preParse; |
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/** |
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* RequestParser constructor. |
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*/ |
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public function __construct() |
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{ |
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$this->preParse = Interceptor::createBase(); |
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} |
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/** |
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* Parse request data |
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* |
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* @param string $data |
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* |
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* @return InvokeSpec |
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*/ |
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public function parse(string $data): InvokeSpec |
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{ |
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$payload = @json_decode($data, true); |
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if (!is_array($payload)) { |
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return new InvokeSpec([new Error(new ParseErrorException())], true); |
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} |
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$units = []; |
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// Single request |
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if ($this->isSingleRequest($payload)) { |
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$units[] = $this->decodeCall($payload); |
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return new InvokeSpec($units, true); |
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} |
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// Batch request |
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/** @var array $payload */ |
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foreach ($payload as $record) { |
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$units[] = $this->decodeCall($record); |
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} |
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return new InvokeSpec($units, false); |
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} |
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/** |
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* Get pre-parse chain |
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* |
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* @return Interceptor |
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*/ |
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public function onPreParse(): Interceptor |
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{ |
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return $this->preParse; |
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} |
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/** |
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* @param $record |
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* |
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* @return AbstractInvoke |
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*/ |
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private function decodeCall($record): AbstractInvoke |
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{ |
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$record = $this->preParse($record); |
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if ($this->isValidCall($record)) { |
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$unit = new Invoke($record['id'], $record['method'], $record['params'] ?? []); |
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} elseif ($this->isValidNotification($record)) { |
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$unit = new Notification($record['method'], $record['params']); |
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} else { |
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$unit = new Error(new InvalidRequestException()); |
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} |
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return $unit; |
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} |
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/** |
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* @param array $payload |
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* |
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* @return bool |
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*/ |
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private function isSingleRequest(array $payload): bool |
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{ |
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return array_keys($payload) !== range(0, count($payload) - 1); |
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} |
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/** |
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* @param array $payload |
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* |
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* @return bool |
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*/ |
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View Code Duplication |
private function isValidCall($payload): bool |
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{ |
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if (!is_array($payload)) { |
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return false; |
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} |
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$headerValid = array_key_exists('jsonrpc', $payload) && $payload['jsonrpc'] === '2.0'; |
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$methodValid = array_key_exists('method', $payload) && is_string($payload['method']); |
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$idValid = array_key_exists('id', $payload); |
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// This member MAY be omitted |
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$paramsValid = true; |
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if (array_key_exists('params', $payload) && !is_array($payload['params'])) { |
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$paramsValid = false; |
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} |
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return $headerValid && $methodValid && $paramsValid && $idValid; |
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} |
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/** |
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* @param array $payload |
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* |
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* @return bool |
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*/ |
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View Code Duplication |
private function isValidNotification($payload): bool |
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{ |
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if (!is_array($payload)) { |
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return false; |
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} |
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$headerValid = array_key_exists('jsonrpc', $payload) && $payload['jsonrpc'] === '2.0'; |
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$methodValid = array_key_exists('method', $payload) && is_string($payload['method']); |
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$idValid = !array_key_exists('id', $payload); |
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// This member MAY be omitted |
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$paramsValid = true; |
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if (array_key_exists('params', $payload) && !is_array($payload['params'])) { |
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$paramsValid = false; |
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} |
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return $headerValid && $methodValid && $paramsValid && $idValid; |
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} |
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/** |
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* @param mixed $record |
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* |
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* @return mixed |
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*/ |
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private function preParse($record) |
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{ |
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$container = $this->preParse->handle(new ParserContainer($this, $record)); |
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if ($container instanceof ParserContainer) { |
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return $container->getValue(); |
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} |
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throw new \RuntimeException(); |
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} |
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} |
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vaderangry /
PhpJsonRpc
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.