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<?php
namespace Engelsystem\Middleware;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
class SendResponseHandler implements MiddlewareInterface
{
/**
* Send the server response to the client
*
* This should be the first middleware
*
* @param ServerRequestInterface $request
* @param RequestHandlerInterface $handler
* @return ResponseInterface
*/
public function process(
ServerRequestInterface $request,
RequestHandlerInterface $handler
): ResponseInterface {
$response = $handler->handle($request);
if (!$this->headersSent()) {
$this->sendHeader(sprintf(
'HTTP/%s %s %s',
$response->getProtocolVersion(),
$response->getStatusCode(),
$response->getReasonPhrase()
), true, $response->getStatusCode());
foreach ($response->getHeaders() as $name => $values) {
foreach ($values as $value) {
$this->sendHeader($name . ': ' . $value, false);
}
}
}
echo $response->getBody();
return $response;
}
/**
* Checks if headers have been sent
*
* @return bool
* @codeCoverageIgnore
*/
protected function headersSent()
{
return headers_sent();
}
/**
* Send a raw HTTP header
*
* @param string $content
* @param bool $replace
* @param int $code
* @codeCoverageIgnore
*/
protected function sendHeader($content, $replace = true, $code = null)
{
header($content, $replace, $code);
}
}
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