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<?php
namespace UMA\Psr7Hmac\Internal;
use Psr\Http\Message\RequestInterface;
final class RequestSerializer
{
const CRLF = "\r\n";
/**
* Returns the string representation of an HTTP request.
*
* @param RequestInterface $request Request to convert to a string.
* @return string
*/
public static function serialize(RequestInterface $request)
return self::requestLine($request).self::headers($request).$request->getBody();
}
private static function requestLine(RequestInterface $request)
$method = $request->getMethod();
$target = self::fixTarget(trim($request->getRequestTarget()));
$protocol = 'HTTP/'.$request->getProtocolVersion();
return "$method $target $protocol".self::CRLF;
private static function headers(RequestInterface $request)
$headers = $request->getHeaders();
unset($headers['host']);
unset($headers['Host']);
$headerLines = [];
foreach ($headers as $name => $value) {
$value = is_array($value) ? $value : [$value];
$normalizedName = (new HeaderNameNormalizer())->normalize($name);
$headerLines[$normalizedName] = $normalizedName.': '.implode(',', $value).self::CRLF;
ksort($headerLines);
$host = $request->getUri()->getHost();
return "host: $host".self::CRLF.implode($headerLines).self::CRLF;
private static function fixTarget($target)
if (!array_key_exists('query', $parsedTarget = parse_url($target))) {
return $target;
parse_str($parsedTarget['query'], $query);
ksort($query);
return $parsedTarget['path'].'?'.http_build_query($query);
1ma /
Psr7Hmac
