Changed existing code to match the changes regarding response

apps/advanced/backend/controllers/SiteController.php

@@ -17,7 +17,7 @@ class SiteController extends Controller
 	{
 		$model = new LoginForm();
 		if ($this->populate($_POST, $model) && $model->login()) {
-			return Yii::$app->response->redirect(array('site/index'));
+			return $this->response->redirect(array('site/index'));
 		} else {
 			return $this->render('login', array(
 				'model' => $model,
@@ -28,6 +28,6 @@ class SiteController extends Controller
 	public function actionLogout()
 	{
 		Yii::$app->user->logout();
-		return Yii::$app->response->redirect(array('site/index'));
+		return $this->response->redirect(array('site/index'));
 	}
 }

apps/advanced/frontend/controllers/SiteController.php

@@ -27,7 +27,7 @@ class SiteController extends Controller
 	{
 		$model = new LoginForm();
 		if ($this->populate($_POST, $model) && $model->login()) {
-			return Yii::$app->response->redirect(array('site/index'));
+			return $this->response->redirect(array('site/index'));
 		} else {
 			return $this->render('login', array(
 				'model' => $model,
@@ -38,7 +38,7 @@ class SiteController extends Controller
 	public function actionLogout()
 	{
 		Yii::$app->user->logout();
-		return Yii::$app->response->redirect(array('site/index'));
+		return $this->response->redirect(array('site/index'));
 	}
 
 	public function actionContact()
@@ -46,7 +46,7 @@ class SiteController extends Controller
 		$model = new ContactForm;
 		if ($this->populate($_POST, $model) && $model->contact(Yii::$app->params['adminEmail'])) {
 			Yii::$app->session->setFlash('contactFormSubmitted');
-			return Yii::$app->response->refresh();
+			return $this->response->refresh();
 		} else {
 			return $this->render('contact', array(
 				'model' => $model,

apps/basic/controllers/SiteController.php

@@ -27,7 +27,7 @@ class SiteController extends Controller
 	{
 		$model = new LoginForm();
 		if ($this->populate($_POST, $model) && $model->login()) {
-			return Yii::$app->response->redirect(array('site/index'));
+			return $this->response->redirect(array('site/index'));
 		} else {
 			return $this->render('login', array(
 				'model' => $model,
@@ -38,7 +38,7 @@ class SiteController extends Controller
 	public function actionLogout()
 	{
 		Yii::$app->user->logout();
-		return Yii::$app->response->redirect(array('site/index'));
+		return $this->response->redirect(array('site/index'));
 	}
 
 	public function actionContact()
@@ -46,7 +46,7 @@ class SiteController extends Controller
 		$model = new ContactForm;
 		if ($this->populate($_POST, $model) && $model->contact(Yii::$app->params['adminEmail'])) {
 			Yii::$app->session->setFlash('contactFormSubmitted');
-			return Yii::$app->response->refresh();
+			return $this->response->refresh();
 		} else {
 			return $this->render('contact', array(
 				'model' => $model,

framework/yii/base/Controller.php

@@ -15,7 +15,7 @@ use Yii;
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @since 2.0
  */
-class Controller extends Component
+abstract class Controller extends Component
 {
 	/**
 	 * @event ActionEvent an event raised right before executing a controller action.

framework/yii/base/ErrorHandler.php

@@ -9,6 +9,7 @@ namespace yii\base;
 
 use Yii;
 use yii\web\HttpException;
+use yii\web\Response;
 
 /**
  * ErrorHandler handles uncaught PHP errors and exceptions.
@@ -89,8 +90,13 @@ class ErrorHandler extends Component
 
 		$useErrorView = !YII_DEBUG || $exception instanceof UserException;
 
-		$response = Yii::$app->getResponse();
+		if (Yii::$app->controller !== null) {
-		$response->getHeaders()->removeAll();
+			$response = Yii::$app->controller->getResponse();
+			$response->getHeaders()->removeAll();
+		}
+		if (empty($response)) {
+			$response = new Response();
+		}
 
 		if ($useErrorView && $this->errorAction !== null) {
 			$result = Yii::$app->runAction($this->errorAction);

framework/yii/web/CaptchaAction.php

@@ -325,7 +325,7 @@ class CaptchaAction extends Action
 	 */
 	protected function setHttpHeaders()
 	{
-		Yii::$app->getResponse()->getHeaders()
+		$this->getResponse()->getHeaders()
 			->set('Pragma', 'public')
 			->set('Expires', '0')
 			->set('Cache-Control', 'must-revalidate, post-check=0, pre-check=0')

framework/yii/web/HttpCache.php

@@ -74,8 +74,8 @@ class HttpCache extends ActionFilter
 			$etag = $this->generateEtag($seed);
 		}
 
-		$this->sendCacheControlHeader();
+		$response = $action->getResponse();
-		$response = Yii::$app->getResponse();
+		$this->sendCacheControlHeader($response);
 		if ($etag !== null) {
 			$response->getHeaders()->set('Etag', $etag);
 		}
@@ -109,12 +109,13 @@ class HttpCache extends ActionFilter
 
 	/**
 	 * Sends the cache control header to the client
+	 * @param Response $response
 	 * @see cacheControl
 	 */
-	protected function sendCacheControlHeader()
+	protected function sendCacheControlHeader($response)
 	{
 		session_cache_limiter('public');
-		$headers = Yii::$app->getResponse()->getHeaders();
+		$headers = $response->getHeaders();
 		$headers->set('Pragma');
 		if ($this->cacheControlHeader !== null) {
 			$headers->set('Cache-Control', $this->cacheControlHeader);

framework/yii/web/Request.php

@@ -788,7 +788,7 @@ class Request extends \yii\base\Request
 			$this->_csrfCookie = $this->getCookies()->get($this->csrfTokenName);
 			if ($this->_csrfCookie === null) {
 				$this->_csrfCookie = $this->createCsrfCookie();
-				Yii::$app->getResponse()->getCookies()->add($this->_csrfCookie);
+				Yii::$app->controller->getResponse()->getCookies()->add($this->_csrfCookie);
 			}
 		}
 

framework/yii/web/User.php

@@ -283,8 +283,7 @@ class User extends Component
 			$this->setReturnUrl($request->getUrl());
 		}
 		if ($this->loginUrl !== null) {
-			$response = Yii::$app->getResponse();
+			Yii::$app->controller->getResponse()->redirect($this->loginUrl)->send();
-			$response->redirect($this->loginUrl)->send();
 			exit();
 		} else {
 			throw new HttpException(403, Yii::t('yii', 'Login Required'));
@@ -372,7 +371,7 @@ class User extends Component
 				$cookie = new Cookie($this->identityCookie);
 				$cookie->value = $value;
 				$cookie->expire = time() + (int)$data[2];
-				Yii::$app->getResponse()->getCookies()->add($cookie);
+				Yii::$app->controller->getResponse()->getCookies()->add($cookie);
 			}
 		}
 	}
@@ -395,7 +394,7 @@ class User extends Component
 			$duration,
 		));
 		$cookie->expire = time() + $duration;
-		Yii::$app->getResponse()->getCookies()->add($cookie);
+		Yii::$app->controller->getResponse()->getCookies()->add($cookie);
 	}
 
 	/**
@@ -429,7 +428,7 @@ class User extends Component
 				$this->sendIdentityCookie($identity, $duration);
 			}
 		} elseif ($this->enableAutoLogin) {
-			Yii::$app->getResponse()->getCookies()->remove(new Cookie($this->identityCookie));
+			Yii::$app->controller->getResponse()->getCookies()->remove(new Cookie($this->identityCookie));
 		}
 	}
 

framework/yii/web/VerbFilter.php

@@ -80,7 +80,7 @@ class VerbFilter extends Behavior
 			if (!in_array($verb, $allowed)) {
 				$event->isValid = false;
 				// http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.7
-				Yii::$app->getResponse()->getHeaders()->set('Allow', implode(', ', $allowed));
+				$event->action->getResponse()->getHeaders()->set('Allow', implode(', ', $allowed));
 				throw new HttpException(405, 'Method Not Allowed. This url can only handle the following request methods: ' . implode(', ', $allowed));
 			}
 		}

tests/unit/framework/helpers/HtmlTest.php

@@ -17,9 +17,6 @@ class HtmlTest extends TestCase
 					'class' => 'yii\web\Request',
 					'url' => '/test',
 				),
-				'response' => array(
-					'class' => 'yii\web\Response',
-				),
 			),
 		));
 	}