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ArraySerializer.php
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ArraySerializer.php
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<?php
declare(strict_types=1);
namespace Laminas\Diactoros\Request;
use Laminas\Diactoros\Exception;
use Laminas\Diactoros\Request;
use Laminas\Diactoros\Stream;
use Psr\Http\Message\RequestInterface;
use Throwable;
use function sprintf;
/**
* Serialize or deserialize request messages to/from arrays.
*
* This class provides functionality for serializing a RequestInterface instance
* to an array, as well as the reverse operation of creating a Request instance
* from an array representing a message.
*/
final class ArraySerializer
{
/**
* Serialize a request message to an array.
*
* @return array{
* method: string,
* request_target: string,
* uri: string,
* protocol_version: string,
* headers: array<array<string>>,
* body: string
* }
*/
public static function toArray(RequestInterface $request): array
{
return [
'method' => $request->getMethod(),
'request_target' => $request->getRequestTarget(),
'uri' => (string) $request->getUri(),
'protocol_version' => $request->getProtocolVersion(),
'headers' => $request->getHeaders(),
'body' => (string) $request->getBody(),
];
}
/**
* Deserialize a request array to a request instance.
*
* @throws Exception\DeserializationException When the response cannot be deserialized.
*/
public static function fromArray(array $serializedRequest): Request
{
try {
$uri = self::getValueFromKey($serializedRequest, 'uri');
$method = self::getValueFromKey($serializedRequest, 'method');
$body = new Stream('php://memory', 'wb+');
$body->write(self::getValueFromKey($serializedRequest, 'body'));
$headers = self::getValueFromKey($serializedRequest, 'headers');
$requestTarget = self::getValueFromKey($serializedRequest, 'request_target');
$protocolVersion = self::getValueFromKey($serializedRequest, 'protocol_version');
return (new Request($uri, $method, $body, $headers))
->withRequestTarget($requestTarget)
->withProtocolVersion($protocolVersion);
} catch (Throwable $exception) {
throw Exception\DeserializationException::forRequestFromArray($exception);
}
}
/**
* @return mixed
* @throws Exception\DeserializationException
*/
private static function getValueFromKey(array $data, string $key, ?string $message = null)
{
if (isset($data[$key])) {
return $data[$key];
}
if ($message === null) {
$message = sprintf('Missing "%s" key in serialized request', $key);
}
throw new Exception\DeserializationException($message);
}
}