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<?php |
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namespace Yoanm\JsonRpcServer\Infra\Serialization; |
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use Yoanm\JsonRpcServer\App\Serialization\RequestDenormalizer; |
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use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcInvalidRequestException; |
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use Yoanm\JsonRpcServer\Domain\Exception\JsonRpcParseErrorException; |
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use Yoanm\JsonRpcServer\Infra\RawObject\JsonRpcRawRequest; |
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/** |
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* Class RawRequestSerializer |
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*/ |
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class RawRequestSerializer |
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{ |
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/** @var RequestDenormalizer */ |
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private $requestDenormalizer; |
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/** |
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* @param RequestDenormalizer $requestDenormalizer |
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*/ |
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public function __construct(RequestDenormalizer $requestDenormalizer) |
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{ |
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$this->requestDenormalizer = $requestDenormalizer; |
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} |
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/** |
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* @param string $content |
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* |
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* @return JsonRpcRawRequest |
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*/ |
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public function deserialize(string $content) : JsonRpcRawRequest |
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{ |
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return $this->denormalize( |
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$this->decode($content) |
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); |
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} |
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/** |
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* @param string $requestContent |
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* |
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* @return array Decoded content |
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* |
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* @throws JsonRpcParseErrorException |
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*/ |
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public function decode(string $requestContent) : array |
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{ |
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$decodedContent = json_decode($requestContent, true); |
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// Check if parsing is ok => Parse error |
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if (JSON_ERROR_NONE !== json_last_error()) { |
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throw new JsonRpcParseErrorException( |
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$requestContent, |
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json_last_error(), |
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json_last_error_msg() |
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); |
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} |
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// Content must be either an array (normal request) or an array of array (batch request) |
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// => so must be an array |
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// In case it's a batch call, at least one sub request must exist |
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// and in case not, some required properties must exist |
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// => array must have at least one child |
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if (!is_array($decodedContent) || count($decodedContent) === 0) { |
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throw new JsonRpcInvalidRequestException($requestContent); |
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} |
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return $decodedContent; |
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} |
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/** |
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* @param array $decodedContent |
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* |
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* @return JsonRpcRawRequest |
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*/ |
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public function denormalize(array $decodedContent) : JsonRpcRawRequest |
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{ |
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$isBatch = $this->guessBatchOrNot($decodedContent); |
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$rawRequest = new JsonRpcRawRequest($isBatch); |
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$this->populateItem($rawRequest, $decodedContent); |
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return $rawRequest; |
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} |
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/** |
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* @param array $decodedContent |
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* |
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* @return bool |
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*/ |
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private function guessBatchOrNot(array $decodedContent) |
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{ |
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$isBatch = true; |
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// Loop over each items |
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// -> In case it's a valid batch request -> all keys will have numeric type -> iterations = Number of requests |
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// -> In case it's a valid normal request -> all keys will have string type -> iterations = 1 (stopped on #1) |
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// => Better performance for normal request (Probably most of requests) |
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foreach ($decodedContent as $key => $item) { |
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// At least a key is a string (that do not contain an int) |
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if (!is_int($key)) { |
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$isBatch = false; |
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break; |
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} |
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} |
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return $isBatch; |
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} |
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/** |
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* @param JsonRpcRawRequest $rawRequest |
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* @param array $decodedContent |
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*/ |
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private function populateItem(JsonRpcRawRequest $rawRequest, array $decodedContent) |
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{ |
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// convert to array in any cases for simpler use |
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$itemList = $rawRequest->isBatch() ? $decodedContent : [$decodedContent]; |
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foreach ($itemList as $item) { |
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// Safely denormalize items |
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try { |
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$rawRequest->addRequestItem( |
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$this->requestDenormalizer->denormalize($item) |
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); |
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} catch (\Exception $exception) { |
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$rawRequest->addExceptionItem($exception); |
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} |
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} |
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} |
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} |
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yoanm /
php-jsonrpc-server-sdk
