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<?php
namespace SilverStripe\Control\Middleware;
use SilverStripe\Control\HTTPRequest;
use SilverStripe\Control\HTTPResponse;
/**
* Adds middleware support to an object.
* Provides a Middlewares property and a callMiddleware() callback
*/
trait HTTPMiddlewareAware
{
* @var HTTPMiddleware[]
protected $middlewares = [];
* @return HTTPMiddleware[]
public function getMiddlewares()
return $this->middlewares;
}
* @param HTTPMiddleware[] $middlewares
* @return $this
public function setMiddlewares($middlewares)
// Allow nulls in the middlewares array to deal with limitations of yml config
$this->middlewares = array_filter((array)$middlewares);
return $this;
* @param HTTPMiddleware $middleware
public function addMiddleware(HTTPMiddleware $middleware)
$this->middlewares[] = $middleware;
* Call middleware
*
* @param HTTPRequest $request The request to pass to the middlewares and callback
* @param callable $last The callback to call after all middlewares
* @return HTTPResponse
protected function callMiddleware(HTTPRequest $request, callable $last)
// Reverse middlewares
$next = $last;
/** @var HTTPMiddleware $middleware */
foreach (array_reverse($this->getMiddlewares()) as $middleware) {
$next = function ($request) use ($middleware, $next) {
return $middleware->process($request, $next);
};
return $next($request);
silverstripe /
silverstripe-framework
