/** * Dispatch a HTTP request to a front controller. */ public function run() { $httpRequest = $this->getHttpRequest(); $httpResponse = $this->getHttpResponse(); $httpRequest->setEncoding('UTF-8'); $httpResponse->setHeader('X-Powered-By', 'Nette Framework'); if (Environment::getVariable('baseUri') === NULL) { Environment::setVariable('baseUri', $httpRequest->getUri()->basePath); } // check HTTP method $method = $httpRequest->getMethod(); if ($this->allowedMethods) { if (!in_array($method, $this->allowedMethods, TRUE)) { $httpResponse->setCode(IHttpResponse::S501_NOT_IMPLEMENTED); $httpResponse->setHeader('Allow', implode(',', $this->allowedMethods)); $method = htmlSpecialChars($method); die("<h1>Method {$method} is not implemented</h1>"); } } // dispatching $request = NULL; $hasError = FALSE; do { try { if (count($this->requests) > self::$maxLoop) { throw new ApplicationException('Too many loops detected in application life cycle.'); } if (!$request) { $this->onStartup($this); // default router $router = $this->getRouter(); if ($router instanceof MultiRouter && !count($router)) { $router[] = new SimpleRouter(array('presenter' => 'Default', 'action' => 'default')); } // routing $request = $router->match($httpRequest); if (!$request instanceof PresenterRequest) { $request = NULL; throw new BadRequestException('No route for HTTP request.'); } if (strcasecmp($request->getPresenterName(), $this->errorPresenter) === 0) { throw new BadRequestException('Invalid request.'); } } $this->requests[] = $request; $this->onRequest($this, $request); // Instantiate presenter $presenter = $request->getPresenterName(); try { $class = $this->getPresenterLoader()->getPresenterClass($presenter); $request->modify('name', $presenter); } catch (InvalidPresenterException $e) { throw new BadRequestException($e->getMessage(), 404, $e); } $this->presenter = new $class($request); // Instantiate topmost service locator $this->presenter->setServiceLocator(new ServiceLocator($this->serviceLocator)); // Execute presenter $this->presenter->run(); break; } catch (RedirectingException $e) { // not error, presenter redirects to new URL $httpResponse->redirect($e->getUri(), $e->getCode()); break; } catch (ForwardingException $e) { // not error, presenter forwards to new request $request = $e->getRequest(); } catch (AbortException $e) { // not error, application is correctly terminated unset($e); break; } catch (Exception $e) { // fault barrier if ($this->catchExceptions === NULL) { $this->catchExceptions = Environment::isProduction(); } if (!$this->catchExceptions) { throw $e; } $this->onError($this, $e); if ($hasError) { $e = new ApplicationException('An error occured while executing error-presenter', 0, $e); } elseif ($this->errorPresenter) { $hasError = TRUE; $request = new PresenterRequest($this->errorPresenter, PresenterRequest::FORWARD, array('exception' => $e)); continue; } if ($e instanceof BadRequestException) { if (!$httpResponse->isSent()) { $httpResponse->setCode($e->getCode()); } echo "<title>404 Not Found</title>\n\n<h1>Not Found</h1>\n\n<p>The requested URL was not found on this server.</p>"; break; } else { if (!$httpResponse->isSent()) { $httpResponse->setCode(500); } Debug::processException($e, FALSE); echo "<title>500 Internal Server Error</title>\n\n<h1>Server Error</h1>\n\n", "<p>The server encountered an internal error and was unable to complete your request. Please try again later.</p>"; break; } } } while (1); $this->onShutdown($this, isset($e) ? $e : NULL); }