Viewing file:  Serializer.php (3.01 KB) -rw-r--r--
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<?php
declare(strict_types=1);
namespace Laminas\Diactoros\Response;
use Laminas\Diactoros\AbstractSerializer;
use Laminas\Diactoros\Exception;
use Laminas\Diactoros\Response;
use Laminas\Diactoros\Stream;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\StreamInterface;
use function preg_match;
use function sprintf;
final class Serializer extends AbstractSerializer
{
/**
* Deserialize a response string to a response instance.
*
* @throws Exception\SerializationException When errors occur parsing the message.
*/
public static function fromString(string $message): Response
{
$stream = new Stream('php://temp', 'wb+');
$stream->write($message);
return static::fromStream($stream);
}
/**
* Parse a response from a stream.
*
* @throws Exception\InvalidArgumentException When the stream is not readable.
* @throws Exception\SerializationException When errors occur parsing the message.
*/
public static function fromStream(StreamInterface $stream): Response
{
if (! $stream->isReadable() || ! $stream->isSeekable()) {
throw new Exception\InvalidArgumentException('Message stream must be both readable and seekable');
}
$stream->rewind();
[$version, $status, $reasonPhrase] = self::getStatusLine($stream);
[$headers, $body] = self::splitStream($stream);
return (new Response($body, $status, $headers))
->withProtocolVersion($version)
->withStatus((int) $status, $reasonPhrase);
}
/**
* Create a string representation of a response.
*/
public static function toString(ResponseInterface $response): string
{
$reasonPhrase = $response->getReasonPhrase();
$headers = self::serializeHeaders($response->getHeaders());
$body = (string) $response->getBody();
$format = 'HTTP/%s %d%s%s%s';
if (! empty($headers)) {
$headers = "\r\n" . $headers;
}
$headers .= "\r\n\r\n";
return sprintf(
$format,
$response->getProtocolVersion(),
$response->getStatusCode(),
$reasonPhrase ? ' ' . $reasonPhrase : '',
$headers,
$body
);
}
/**
* Retrieve the status line for the message.
*
* @return array Array with three elements: 0 => version, 1 => status, 2 => reason
* @throws Exception\SerializationException If line is malformed.
*/
private static function getStatusLine(StreamInterface $stream): array
{
$line = self::getLine($stream);
if (
! preg_match(
'#^HTTP/(?P<version>[1-9]\d*\.\d) (?P<status>[1-5]\d{2})(\s+(?P<reason>.+))?$#',
$line,
$matches
)
) {
throw Exception\SerializationException::forInvalidStatusLine();
}
return [$matches['version'], (int) $matches['status'], $matches['reason'] ?? ''];
}
}
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