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<?php |
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namespace PhpJsonRpc\Server\Request; |
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use PhpJsonRpc\Server\Error\ParseError; |
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use PhpJsonRpc\Server\Error\InvalidRequest; |
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use JsonSchema\Validator as JsonSchemaValidator; |
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class RequestBuilder |
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{ |
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const JSON_SCHEMA_PATH = '/../../jsonschemas/request.json'; |
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/** |
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* @var mixed should be object or array |
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*/ |
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protected $decodedJson; |
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/** |
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* @param string $jsonRpcMessage |
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* |
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* @throws InvalidRequest |
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* @throws ParseError |
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*/ |
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public function __construct($jsonRpcMessage) |
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{ |
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$this->decodedJson = json_decode($jsonRpcMessage); |
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$jsonLastError = json_last_error(); |
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if ($jsonLastError !== JSON_ERROR_NONE) { |
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throw new ParseError($this->buildJsonErrorMessage($jsonLastError)); |
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} |
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if ($this->isBatchRequest() && !$this->decodedJson()) { |
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throw new InvalidRequest; |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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public function isBatchRequest() |
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{ |
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return is_array($this->decodedJson); |
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} |
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/** |
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* @return mixed should be object or array |
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*/ |
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public function decodedJson() |
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{ |
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return $this->decodedJson; |
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} |
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/** |
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* @param object $jsonObject |
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* |
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* @return AbstractRequest NotificationRequest|Request |
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* |
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* @throws InvalidRequest |
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*/ |
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public function buildRequest($jsonObject) |
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{ |
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$jsonSchemaValidator = $this->assembleJsonSchemaValidator($jsonObject); |
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if ($jsonSchemaValidator->isValid() === false) { |
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throw new InvalidRequest($jsonSchemaValidator->getErrors()); |
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} |
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if (property_exists($jsonObject, 'id')) { |
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return new Request($jsonObject); |
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} |
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return new NotificationRequest($jsonObject); |
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} |
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/** |
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* @param mixed $jsonDecodedMessage |
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* |
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* @return JsonSchemaValidator |
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*/ |
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protected function assembleJsonSchemaValidator($jsonDecodedMessage) |
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{ |
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$validator = new JsonSchemaValidator; |
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$validator->check($jsonDecodedMessage, (object)['$ref' => 'file://' . __DIR__ . self::JSON_SCHEMA_PATH]); |
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return $validator; |
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} |
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/** |
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* @param int $jsonLastError |
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* |
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* @return string |
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*/ |
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protected function buildJsonErrorMessage($jsonLastError) |
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{ |
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$message = 'Unknown error'; |
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switch ($jsonLastError) { |
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case JSON_ERROR_NONE: |
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$message = 'No errors'; |
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break; |
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case JSON_ERROR_DEPTH: |
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$message = 'Maximum stack depth exceeded'; |
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break; |
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3 |
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case JSON_ERROR_STATE_MISMATCH: |
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$message = 'Underflow or the modes mismatch'; |
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break; |
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case JSON_ERROR_CTRL_CHAR: |
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$message = 'Unexpected control character found'; |
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break; |
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case JSON_ERROR_SYNTAX: |
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$message = 'Syntax error, malformed JSON'; |
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break; |
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case JSON_ERROR_UTF8: |
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$message = 'Malformed UTF-8 characters, possibly incorrectly encoded'; |
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break; |
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} |
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3 |
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return $message; |
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} |
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} |
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phpjsonrpc /
server
