/**
* @param \Spekkoek\MiddlewareStack $middleware The middleware stack to set in your App Class
* @return \Spekkoek\MiddlewareStack
*/
public function middleware($middleware)
{
$middleware->push(function ($req, $res, $next) {
return 'Not a response';
});
return $middleware;
}
/**
* @param \Psr\Http\Message\ServerRequestInterface $request The server request
* @param \Psr\Http\Message\ResponseInterface $response The response object
* @return \Psr\Http\Message\ResponseInterface An updated response
*/
public function __invoke(ServerRequestInterface $request, ResponseInterface $response)
{
$next = $this->middleware->get($this->index);
if ($next) {
$this->index++;
return $next($request, $response, $this);
}
// End of the stack
return $response;
}
/**
* @param \Spekkoek\MiddlewareStack $middleware The middleware stack to set in your App Class
* @return \Spekkoek\MiddlewareStack
*/
public function middleware($middleware)
{
$middleware->push(function ($req, $res, $next) {
$res = $res->withHeader('X-First', 'first');
return $next($req, $res);
})->push(function ($req, $res, $next) {
$res = $res->withHeader('X-Second', 'second');
return $next($req, $res);
})->push(function ($req, $res, $next) {
if ($req->hasHeader('X-pass')) {
$res = $res->withHeader('X-pass', $req->getHeaderLine('X-pass'));
}
$res = $res->withHeader('X-Second', 'second');
return $next($req, $res);
});
return $middleware;
}
public function testInsertAfterInvalid()
{
$one = new SampleMiddleware();
$two = function () {
};
$three = function () {
};
$stack = new MiddlewareStack();
$stack->push($one)->push($two)->insertAfter('InvalidClass', $three);
$this->assertCount(3, $stack);
$this->assertSame($one, $stack->get(0));
$this->assertSame($two, $stack->get(1));
$this->assertSame($three, $stack->get(2));
}