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<?php
namespace Jasny;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\ResponseInterface;
/**
* Controller
*/
abstract class Controller
{
/**
* Server request
* @var ServerRequestInterface
**/
protected $request = null;
/**
* Response
* @var ResponseInterface
**/
protected $response = null;
/**
* Run the controller
*
* @return ResponseInterface
*/
abstract public function run();
/**
* Get request, set for controller
*
* @return ServerRequestInterface
*/
public function getRequest()
{
return $this->request;
}
/**
* Get response. set for controller
*
* @return ResponseInterface
*/
public function getResponse()
{
return $this->response;
}
/**
* Run the controller as function
*
* @param ServerRequestInterface $request
* @param ResponseInterface $response
* @return ResponseInterface
*/
public function __invoke(ServerRequestInterface $request, ResponseInterface $response)
{
$this->request = $request;
$this->response = $response;
return $this->run();
}
/**
* Check if response is 2xx succesful, or empty
*
* @return boolean
*/
public function isSuccessful()
{
$code = $this->getResponseStatusCode();
return !$code || ($code >= 200 && $code < 300);
}
/**
* Check if response is a 3xx redirect
*
* @return boolean
*/
public function isRedirection()
{
$code = $this->getResponseStatusCode();
return $code >= 300 && $code < 400;
}
/**
* Check if response is a 4xx client error
*
* @return boolean
*/
public function isClientError()
{
$code = $this->getResponseStatusCode();
return $code >= 400 && $code < 500;
}
/**
* Check if response is a 5xx redirect
*
* @return boolean
*/
public function isServerError()
{
return $this->getResponseStatusCode() >= 500;
}
/**
* Check if response is 4xx or 5xx error
*
* @return boolean
*/
public function isError()
{
return $this->isClientError() || $this->isServerError();
}
/**
* Get status code of response
*
* @return int
*/
protected function getResponseStatusCode()
{
$response = $this->getResponse();
return $response ? $response->getStatusCode() : 0;
}
}
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