130 lines
2.9 KiB
PHP
130 lines
2.9 KiB
PHP
<?php
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namespace JsonRPC\Request;
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use Exception;
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use JsonRPC\Exception\AccessDeniedException;
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use JsonRPC\Exception\AuthenticationFailureException;
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use JsonRPC\Exception\InvalidJsonRpcFormatException;
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use JsonRPC\ProcedureHandler;
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use JsonRPC\Response\ResponseBuilder;
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use JsonRPC\Validator\JsonFormatValidator;
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use JsonRPC\Validator\RpcFormatValidator;
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/**
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* Class RequestParser
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*
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* @package JsonRPC
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* @author Frederic Guillot
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*/
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class RequestParser
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{
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/**
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* Request payload
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*
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* @access protected
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* @var mixed
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*/
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protected $payload;
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/**
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* ProcedureHandler
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*
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* @access protected
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* @var ProcedureHandler
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*/
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protected $procedureHandler;
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/**
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* Get new object instance
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*
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* @static
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* @access public
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* @return RequestParser
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*/
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public static function create()
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{
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return new static();
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}
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/**
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* Set payload
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*
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* @access public
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* @param mixed $payload
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* @return $this
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*/
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public function withPayload($payload)
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{
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$this->payload = $payload;
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return $this;
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}
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/**
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* Set procedure handler
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*
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* @access public
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* @param ProcedureHandler $procedureHandler
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* @return $this
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*/
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public function withProcedureHandler(ProcedureHandler $procedureHandler)
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{
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$this->procedureHandler = $procedureHandler;
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return $this;
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}
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/**
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* Parse incoming request
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*
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* @access public
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* @return string
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* @throws AccessDeniedException
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* @throws AuthenticationFailureException
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*/
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public function parse()
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{
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try {
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JsonFormatValidator::validate($this->payload);
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RpcFormatValidator::validate($this->payload);
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$result = $this->procedureHandler->executeProcedure(
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$this->payload['method'],
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empty($this->payload['params']) ? array() : $this->payload['params']
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);
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if (! $this->isNotification()) {
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return ResponseBuilder::create()
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->withId($this->payload['id'])
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->withResult($result)
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->build();
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}
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} catch (Exception $e) {
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if ($e instanceof AccessDeniedException || $e instanceof AuthenticationFailureException) {
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throw $e;
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}
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if ($e instanceof InvalidJsonRpcFormatException || ! $this->isNotification()) {
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return ResponseBuilder::create()
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->withId(isset($this->payload['id']) ? $this->payload['id'] : null)
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->withException($e)
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->build();
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}
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}
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return '';
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}
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/**
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* Return true if the message is a notification
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*
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* @access private
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* @return bool
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*/
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private function isNotification()
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{
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return is_array($this->payload) && !isset($this->payload['id']);
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}
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}
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