Refactoring: added controlled middleware and changed response class

66 files changed, 691 insertions, 658 deletions

diff --git a/app/Controller/Action.php b/app/Controller/Action.php
index 8881e8ec..40497a62 100644
--- a/app/Controller/Action.php
+++ b/app/Controller/Action.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package controller
  * @author  Frederic Guillot
  */
-class Action extends Base
+class Action extends BaseController
 {
     /**
      * List of automatic actions for a given project
diff --git a/app/Controller/ActionCreation.php b/app/Controller/ActionCreation.php
index 61b7b5e2..388b30e2 100644
--- a/app/Controller/ActionCreation.php
+++ b/app/Controller/ActionCreation.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package controller
  * @author  Frederic Guillot
  */
-class ActionCreation extends Base
+class ActionCreation extends BaseController
 {
     /**
      * Show the form (step 1)
diff --git a/app/Controller/ActionProject.php b/app/Controller/ActionProject.php
index e5063f73..10b3c9d4 100644
--- a/app/Controller/ActionProject.php
+++ b/app/Controller/ActionProject.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package controller
  * @author  Frederic Guillot
  */
-class ActionProject extends Base
+class ActionProject extends BaseController
 {
     public function project()
     {
diff --git a/app/Controller/Activity.php b/app/Controller/Activity.php
index 47a66e0a..0c6aa3f3 100644
--- a/app/Controller/Activity.php
+++ b/app/Controller/Activity.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package controller
  * @author  Frederic Guillot
  */
-class Activity extends Base
+class Activity extends BaseController
 {
     /**
      * Activity page for a project
diff --git a/app/Controller/Analytic.php b/app/Controller/Analytic.php
index 35bc3048..ba73c15c 100644
--- a/app/Controller/Analytic.php
+++ b/app/Controller/Analytic.php
@@ -11,7 +11,7 @@ use Kanboard\Model\Task as TaskModel;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Analytic extends Base
+class Analytic extends BaseController
 {
     /**
      * Show average Lead and Cycle time
diff --git a/app/Controller/AppController.php b/app/Controller/AppController.php
new file mode 100644
index 00000000..60bc154a
--- /dev/null
+++ b/app/Controller/AppController.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace Kanboard\Controller;
+
+use Kanboard\Core\Base;
+
+/**
+ * Class AppController
+ *
+ * @package Kanboard\Controller
+ */
+class AppController extends Base
+{
+    /**
+     * Forbidden page
+     *
+     * @access public
+     * @param  bool $withoutLayout
+     */
+    public function accessForbidden($withoutLayout = false)
+    {
+        if ($this->request->isAjax()) {
+            $this->response->json(array('message' => 'Access Forbidden'), 403);
+        }
+
+        $this->response->html($this->helper->layout->app('app/forbidden', array(
+            'title' => t('Access Forbidden'),
+            'no_layout' => $withoutLayout,
+        )));
+    }
+
+    /**
+     * Page not found
+     *
+     * @access public
+     * @param  boolean $withoutLayout
+     */
+    public function notFound($withoutLayout = false)
+    {
+        $this->response->html($this->helper->layout->app('app/notfound', array(
+            'title' => t('Page not found'),
+            'no_layout' => $withoutLayout,
+        )));
+    }
+}
diff --git a/app/Controller/Auth.php b/app/Controller/Auth.php
index b882a720..cad44a34 100644
--- a/app/Controller/Auth.php
+++ b/app/Controller/Auth.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Auth extends Base
+class Auth extends BaseController
 {
     /**
      * Display the form login
@@ -20,16 +20,16 @@ class Auth extends Base
     public function login(array $values = array(), array $errors = array())
     {
         if ($this->userSession->isLogged()) {
-            $this->response->redirect($this->helper->url->to('app', 'index'));
+            $this->response->redirect($this->helper->url->to('DashboardController', 'show'));
+        } else {
+            $this->response->html($this->helper->layout->app('auth/index', array(
+                'captcha' => ! empty($values['username']) && $this->userLocking->hasCaptcha($values['username']),
+                'errors' => $errors,
+                'values' => $values,
+                'no_layout' => true,
+                'title' => t('Login')
+            )));
         }
-
-        $this->response->html($this->helper->layout->app('auth/index', array(
-            'captcha' => ! empty($values['username']) && $this->userLocking->hasCaptcha($values['username']),
-            'errors' => $errors,
-            'values' => $values,
-            'no_layout' => true,
-            'title' => t('Login')
-        )));
     }
 
     /**
@@ -45,9 +45,9 @@ class Auth extends Base
 
         if ($valid) {
             $this->redirectAfterLogin();
+        } else {
+            $this->login($values, $errors);
         }
-
-        $this->login($values, $errors);
     }
 
     /**
@@ -76,8 +76,8 @@ class Auth extends Base
             $redirect = $this->sessionStorage->redirectAfterLogin;
             unset($this->sessionStorage->redirectAfterLogin);
             $this->response->redirect($redirect);
+        } else {
+            $this->response->redirect($this->helper->url->to('DashboardController', 'show'));
         }
-
-        $this->response->redirect($this->helper->url->to('app', 'index'));
     }
 }
diff --git a/app/Controller/AvatarFile.php b/app/Controller/AvatarFile.php
index 45cb1615..67c3efe1 100644
--- a/app/Controller/AvatarFile.php
+++ b/app/Controller/AvatarFile.php
@@ -11,7 +11,7 @@ use Kanboard\Core\Thumbnail;
  * @package  controller
  * @author   Frederic Guillot
  */
-class AvatarFile extends Base
+class AvatarFile extends BaseController
 {
     /**
      * Display avatar page
@@ -61,8 +61,8 @@ class AvatarFile extends Base
         $filename = $this->avatarFile->getFilename($user_id);
         $etag = md5($filename.$size);
 
-        $this->response->cache(365 * 86400, $etag);
-        $this->response->contentType('image/jpeg');
+        $this->response->withCache(365 * 86400, $etag);
+        $this->response->withContentType('image/jpeg');
 
         if ($this->request->getHeader('If-None-Match') !== '"'.$etag.'"') {
             $this->render($filename, $size);
diff --git a/app/Controller/Base.php b/app/Controller/Base.php
deleted file mode 100644
index beb56909..00000000
--- a/app/Controller/Base.php
+++ /dev/null
@@ -1,290 +0,0 @@
-<?php
-
-namespace Kanboard\Controller;
-
-use Kanboard\Core\Security\Role;
-
-/**
- * Base controller
- *
- * @package  controller
- * @author   Frederic Guillot
- */
-abstract class Base extends \Kanboard\Core\Base
-{
-    /**
-     * Method executed before each action
-     *
-     * @access public
-     */
-    public function beforeAction()
-    {
-        $this->sessionManager->open();
-        $this->dispatcher->dispatch('app.bootstrap');
-        $this->sendHeaders();
-        $this->authenticationManager->checkCurrentSession();
-
-        if (! $this->applicationAuthorization->isAllowed($this->router->getController(), $this->router->getAction(), Role::APP_PUBLIC)) {
-            $this->handleAuthentication();
-            $this->handlePostAuthentication();
-            $this->checkApplicationAuthorization();
-            $this->checkProjectAuthorization();
-        }
-    }
-
-    /**
-     * Send HTTP headers
-     *
-     * @access private
-     */
-    private function sendHeaders()
-    {
-        // HTTP secure headers
-        $this->response->csp($this->container['cspRules']);
-        $this->response->nosniff();
-        $this->response->xss();
-
-        // Allow the public board iframe inclusion
-        if (ENABLE_XFRAME && $this->router->getAction() !== 'readonly') {
-            $this->response->xframe();
-        }
-
-        if (ENABLE_HSTS) {
-            $this->response->hsts();
-        }
-    }
-
-    /**
-     * Check authentication
-     *
-     * @access private
-     */
-    private function handleAuthentication()
-    {
-        if (! $this->userSession->isLogged() && ! $this->authenticationManager->preAuthentication()) {
-            if ($this->request->isAjax()) {
-                $this->response->text('Not Authorized', 401);
-            }
-
-            $this->sessionStorage->redirectAfterLogin = $this->request->getUri();
-            $this->response->redirect($this->helper->url->to('auth', 'login'));
-        }
-    }
-
-    /**
-     * Handle Post-Authentication (2FA)
-     *
-     * @access private
-     */
-    private function handlePostAuthentication()
-    {
-        $controller = strtolower($this->router->getController());
-        $action = strtolower($this->router->getAction());
-        $ignore = ($controller === 'twofactor' && in_array($action, array('code', 'check'))) || ($controller === 'auth' && $action === 'logout');
-
-        if ($ignore === false && $this->userSession->hasPostAuthentication() && ! $this->userSession->isPostAuthenticationValidated()) {
-            if ($this->request->isAjax()) {
-                $this->response->text('Not Authorized', 401);
-            }
-
-            $this->response->redirect($this->helper->url->to('twofactor', 'code'));
-        }
-    }
-
-    /**
-     * Check application authorization
-     *
-     * @access private
-     */
-    private function checkApplicationAuthorization()
-    {
-        if (! $this->helper->user->hasAccess($this->router->getController(), $this->router->getAction())) {
-            $this->forbidden();
-        }
-    }
-
-    /**
-     * Check project authorization
-     *
-     * @access private
-     */
-    private function checkProjectAuthorization()
-    {
-        $project_id = $this->request->getIntegerParam('project_id');
-        $task_id = $this->request->getIntegerParam('task_id');
-
-        // Allow urls without "project_id"
-        if ($task_id > 0 && $project_id === 0) {
-            $project_id = $this->taskFinder->getProjectId($task_id);
-        }
-
-        if ($project_id > 0 && ! $this->helper->user->hasProjectAccess($this->router->getController(), $this->router->getAction(), $project_id)) {
-            $this->forbidden();
-        }
-    }
-
-    /**
-     * Application not found page (404 error)
-     *
-     * @access protected
-     * @param  boolean   $no_layout   Display the layout or not
-     */
-    protected function notfound($no_layout = false)
-    {
-        $this->response->html($this->helper->layout->app('app/notfound', array(
-            'title' => t('Page not found'),
-            'no_layout' => $no_layout,
-        )));
-    }
-
-    /**
-     * Application forbidden page
-     *
-     * @access protected
-     * @param  boolean   $no_layout   Display the layout or not
-     */
-    protected function forbidden($no_layout = false)
-    {
-        if ($this->request->isAjax()) {
-            $this->response->text('Access Forbidden', 403);
-        }
-
-        $this->response->html($this->helper->layout->app('app/forbidden', array(
-            'title' => t('Access Forbidden'),
-            'no_layout' => $no_layout,
-        )));
-    }
-
-    /**
-     * Check if the CSRF token from the URL is correct
-     *
-     * @access protected
-     */
-    protected function checkCSRFParam()
-    {
-        if (! $this->token->validateCSRFToken($this->request->getStringParam('csrf_token'))) {
-            $this->forbidden();
-        }
-    }
-
-    /**
-     * Check webhook token
-     *
-     * @access protected
-     */
-    protected function checkWebhookToken()
-    {
-        if ($this->config->get('webhook_token') !== $this->request->getStringParam('token')) {
-            $this->response->text('Not Authorized', 401);
-        }
-    }
-
-    /**
-     * Common method to get a task for task views
-     *
-     * @access protected
-     * @return array
-     */
-    protected function getTask()
-    {
-        $project_id = $this->request->getIntegerParam('project_id');
-        $task = $this->taskFinder->getDetails($this->request->getIntegerParam('task_id'));
-
-        if (empty($task)) {
-            $this->notfound();
-        }
-
-        if ($project_id !== 0 && $project_id != $task['project_id']) {
-            $this->forbidden();
-        }
-
-        return $task;
-    }
-
-    /**
-     * Get Task or Project file
-     *
-     * @access protected
-     */
-    protected function getFile()
-    {
-        $task_id = $this->request->getIntegerParam('task_id');
-        $file_id = $this->request->getIntegerParam('file_id');
-        $model = 'projectFile';
-
-        if ($task_id > 0) {
-            $model = 'taskFile';
-            $project_id = $this->taskFinder->getProjectId($task_id);
-
-            if ($project_id !== $this->request->getIntegerParam('project_id')) {
-                $this->forbidden();
-            }
-        }
-
-        $file = $this->$model->getById($file_id);
-
-        if (empty($file)) {
-            $this->notfound();
-        }
-
-        $file['model'] = $model;
-        return $file;
-    }
-
-    /**
-     * Common method to get a project
-     *
-     * @access protected
-     * @param  integer      $project_id    Default project id
-     * @return array
-     */
-    protected function getProject($project_id = 0)
-    {
-        $project_id = $this->request->getIntegerParam('project_id', $project_id);
-        $project = $this->project->getByIdWithOwner($project_id);
-
-        if (empty($project)) {
-            $this->notfound();
-        }
-
-        return $project;
-    }
-
-    /**
-     * Common method to get the user
-     *
-     * @access protected
-     * @return array
-     */
-    protected function getUser()
-    {
-        $user = $this->user->getById($this->request->getIntegerParam('user_id', $this->userSession->getId()));
-
-        if (empty($user)) {
-            $this->notfound();
-        }
-
-        if (! $this->userSession->isAdmin() && $this->userSession->getId() != $user['id']) {
-            $this->forbidden();
-        }
-
-        return $user;
-    }
-
-    /**
-     * Get the current subtask
-     *
-     * @access protected
-     * @return array
-     */
-    protected function getSubtask()
-    {
-        $subtask = $this->subtask->getById($this->request->getIntegerParam('subtask_id'));
-
-        if (empty($subtask)) {
-            $this->notfound();
-        }
-
-        return $subtask;
-    }
-}
diff --git a/app/Controller/BaseController.php b/app/Controller/BaseController.php
new file mode 100644
index 00000000..ad02f708
--- /dev/null
+++ b/app/Controller/BaseController.php
@@ -0,0 +1,158 @@
+<?php
+
+namespace Kanboard\Controller;
+
+use Kanboard\Core\Base;
+use Kanboard\Core\Controller\AccessForbiddenException;
+use Kanboard\Core\Controller\PageNotFoundException;
+
+/**
+ * Base Controller
+ *
+ * @package  Kanboard\Controller
+ * @author   Frederic Guillot
+ */
+abstract class BaseController extends Base
+{
+    /**
+     * Check if the CSRF token from the URL is correct
+     *
+     * @access protected
+     */
+    protected function checkCSRFParam()
+    {
+        if (! $this->token->validateCSRFToken($this->request->getStringParam('csrf_token'))) {
+            throw new AccessForbiddenException();
+        }
+    }
+
+    /**
+     * Check webhook token
+     *
+     * @access protected
+     */
+    protected function checkWebhookToken()
+    {
+        if ($this->config->get('webhook_token') !== $this->request->getStringParam('token')) {
+            $this->response->text('Not Authorized', 401);
+        }
+    }
+
+    /**
+     * Common method to get a task for task views
+     *
+     * @access protected
+     * @return array
+     * @throws PageNotFoundException
+     * @throws AccessForbiddenException
+     */
+    protected function getTask()
+    {
+        $project_id = $this->request->getIntegerParam('project_id');
+        $task = $this->taskFinder->getDetails($this->request->getIntegerParam('task_id'));
+
+        if (empty($task)) {
+            throw new PageNotFoundException();
+        }
+
+        if ($project_id !== 0 && $project_id != $task['project_id']) {
+            throw new AccessForbiddenException();
+        }
+
+        return $task;
+    }
+
+    /**
+     * Get Task or Project file
+     *
+     * @access protected
+     * @return array
+     * @throws PageNotFoundException
+     * @throws AccessForbiddenException
+     */
+    protected function getFile()
+    {
+        $task_id = $this->request->getIntegerParam('task_id');
+        $file_id = $this->request->getIntegerParam('file_id');
+        $model = 'projectFile';
+
+        if ($task_id > 0) {
+            $model = 'taskFile';
+            $project_id = $this->taskFinder->getProjectId($task_id);
+
+            if ($project_id !== $this->request->getIntegerParam('project_id')) {
+                throw new AccessForbiddenException();
+            }
+        }
+
+        $file = $this->$model->getById($file_id);
+
+        if (empty($file)) {
+            throw new PageNotFoundException();
+        }
+
+        $file['model'] = $model;
+        return $file;
+    }
+
+    /**
+     * Common method to get a project
+     *
+     * @access protected
+     * @param  integer      $project_id    Default project id
+     * @return array
+     * @throws PageNotFoundException
+     */
+    protected function getProject($project_id = 0)
+    {
+        $project_id = $this->request->getIntegerParam('project_id', $project_id);
+        $project = $this->project->getByIdWithOwner($project_id);
+
+        if (empty($project)) {
+            throw new PageNotFoundException();
+        }
+
+        return $project;
+    }
+
+    /**
+     * Common method to get the user
+     *
+     * @access protected
+     * @return array
+     * @throws PageNotFoundException
+     * @throws AccessForbiddenException
+     */
+    protected function getUser()
+    {
+        $user = $this->user->getById($this->request->getIntegerParam('user_id', $this->userSession->getId()));
+
+        if (empty($user)) {
+            throw new PageNotFoundException();
+        }
+
+        if (! $this->userSession->isAdmin() && $this->userSession->getId() != $user['id']) {
+            throw new AccessForbiddenException();
+        }
+
+        return $user;
+    }
+
+    /**
+     * Get the current subtask
+     *
+     * @access protected
+     * @return array
+     * @throws PageNotFoundException
+     */
+    protected function getSubtask()
+    {
+        $subtask = $this->subtask->getById($this->request->getIntegerParam('subtask_id'));
+
+        if (empty($subtask)) {
+            throw new PageNotFoundException();
+        }
+
+        return $subtask;
+    }
+}
diff --git a/app/Controller/Board.php b/app/Controller/Board.php
index 67e99b81..0f6b3b14 100644
--- a/app/Controller/Board.php
+++ b/app/Controller/Board.php
@@ -2,6 +2,7 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
 use Kanboard\Formatter\BoardFormatter;
 
 /**
@@ -10,7 +11,7 @@ use Kanboard\Formatter\BoardFormatter;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Board extends Base
+class Board extends BaseController
 {
     /**
      * Display the public version of a board
@@ -25,7 +26,7 @@ class Board extends Base
 
         // Token verification
         if (empty($project)) {
-            $this->forbidden(true);
+            throw AccessForbiddenException::getInstance()->withoutLayout();
         }
 
         // Display the board with a specific layout
@@ -74,7 +75,7 @@ class Board extends Base
         $project_id = $this->request->getIntegerParam('project_id');
 
         if (! $project_id || ! $this->request->isAjax()) {
-            return $this->response->status(403);
+            throw new AccessForbiddenException();
         }
 
         $values = $this->request->getJson();
@@ -88,10 +89,10 @@ class Board extends Base
         );
 
         if (! $result) {
-            return $this->response->status(400);
+            $this->response->status(400);
+        } else {
+            $this->response->html($this->renderBoard($project_id), 201);
         }
-
-        $this->response->html($this->renderBoard($project_id), 201);
     }
 
     /**
@@ -105,14 +106,12 @@ class Board extends Base
         $timestamp = $this->request->getIntegerParam('timestamp');
 
         if (! $project_id || ! $this->request->isAjax()) {
-            return $this->response->status(403);
-        }
-
-        if (! $this->project->isModifiedSince($project_id, $timestamp)) {
-            return $this->response->status(304);
+            $this->response->status(403);
+        } elseif (! $this->project->isModifiedSince($project_id, $timestamp)) {
+            $this->response->status(304);
+        } else {
+            $this->response->html($this->renderBoard($project_id));
         }
-
-        return $this->response->html($this->renderBoard($project_id));
     }
 
     /**
@@ -125,7 +124,7 @@ class Board extends Base
         $project_id = $this->request->getIntegerParam('project_id');
 
         if (! $project_id || ! $this->request->isAjax()) {
-            return $this->response->status(403);
+            throw new AccessForbiddenException();
         }
 
         $values = $this->request->getJson();
@@ -177,6 +176,7 @@ class Board extends Base
      *
      * @access private
      * @param  integer $project_id
+     * @return string
      */
     private function renderBoard($project_id)
     {
diff --git a/app/Controller/BoardPopover.php b/app/Controller/BoardPopover.php
index b1a017f4..d3117f78 100644
--- a/app/Controller/BoardPopover.php
+++ b/app/Controller/BoardPopover.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class BoardPopover extends Base
+class BoardPopover extends BaseController
 {
     /**
      * Confirmation before to close all column tasks
diff --git a/app/Controller/BoardTooltip.php b/app/Controller/BoardTooltip.php
index c7819bc1..49d02ced 100644
--- a/app/Controller/BoardTooltip.php
+++ b/app/Controller/BoardTooltip.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class BoardTooltip extends Base
+class BoardTooltip extends BaseController
 {
     /**
      * Get links on mouseover
diff --git a/app/Controller/Calendar.php b/app/Controller/Calendar.php
index 2517286d..706c1d3b 100644
--- a/app/Controller/Calendar.php
+++ b/app/Controller/Calendar.php
@@ -14,7 +14,7 @@ use Kanboard\Model\Task as TaskModel;
  * @author   Frederic Guillot
  * @author   Timo Litzbarski
  */
-class Calendar extends Base
+class Calendar extends BaseController
 {
     /**
      * Show calendar view for projects
diff --git a/app/Controller/Captcha.php b/app/Controller/Captcha.php
index fcf081ea..fb9d6fe3 100644
--- a/app/Controller/Captcha.php
+++ b/app/Controller/Captcha.php
@@ -10,7 +10,7 @@ use Gregwar\Captcha\CaptchaBuilder;
  * @package controller
  * @author  Frederic Guillot
  */
-class Captcha extends Base
+class Captcha extends BaseController
 {
     /**
      * Display captcha image
@@ -19,7 +19,7 @@ class Captcha extends Base
      */
     public function image()
     {
-        $this->response->contentType('image/jpeg');
+        $this->response->withContentType('image/jpeg');
 
         $builder = new CaptchaBuilder;
         $builder->build();
diff --git a/app/Controller/Category.php b/app/Controller/Category.php
index 258a3b78..954d92cc 100644
--- a/app/Controller/Category.php
+++ b/app/Controller/Category.php
@@ -2,28 +2,29 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\PageNotFoundException;
+
 /**
  * Category management
  *
  * @package controller
  * @author  Frederic Guillot
  */
-class Category extends Base
+class Category extends BaseController
 {
     /**
      * Get the category (common method between actions)
      *
      * @access private
-     * @param  integer   $project_id
      * @return array
+     * @throws PageNotFoundException
      */
-    private function getCategory($project_id)
+    private function getCategory()
     {
         $category = $this->category->getById($this->request->getIntegerParam('category_id'));
 
         if (empty($category)) {
-            $this->flash->failure(t('Category not found.'));
-            $this->response->redirect($this->helper->url->to('category', 'index', array('project_id' => $project_id)));
+            throw new PageNotFoundException();
         }
 
         return $category;
@@ -33,6 +34,9 @@ class Category extends Base
      * List of categories for a given project
      *
      * @access public
+     * @param  array $values
+     * @param  array $errors
+     * @throws PageNotFoundException
      */
     public function index(array $values = array(), array $errors = array())
     {
@@ -62,24 +66,27 @@ class Category extends Base
         if ($valid) {
             if ($this->category->create($values)) {
                 $this->flash->success(t('Your category have been created successfully.'));
-                $this->response->redirect($this->helper->url->to('category', 'index', array('project_id' => $project['id'])));
+                return $this->response->redirect($this->helper->url->to('category', 'index', array('project_id' => $project['id'])));
             } else {
                 $this->flash->failure(t('Unable to create your category.'));
             }
         }
 
-        $this->index($values, $errors);
+        return $this->index($values, $errors);
     }
 
     /**
      * Edit a category (display the form)
      *
      * @access public
+     * @param  array $values
+     * @param  array $errors
+     * @throws PageNotFoundException
      */
     public function edit(array $values = array(), array $errors = array())
     {
         $project = $this->getProject();
-        $category = $this->getCategory($project['id']);
+        $category = $this->getCategory();
 
         $this->response->html($this->helper->layout->project('category/edit', array(
             'values' => empty($values) ? $category : $values,
@@ -104,13 +111,13 @@ class Category extends Base
         if ($valid) {
             if ($this->category->update($values)) {
                 $this->flash->success(t('Your category have been updated successfully.'));
-                $this->response->redirect($this->helper->url->to('category', 'index', array('project_id' => $project['id'])));
+                return $this->response->redirect($this->helper->url->to('category', 'index', array('project_id' => $project['id'])));
             } else {
                 $this->flash->failure(t('Unable to update your category.'));
             }
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     /**
@@ -121,7 +128,7 @@ class Category extends Base
     public function confirm()
     {
         $project = $this->getProject();
-        $category = $this->getCategory($project['id']);
+        $category = $this->getCategory();
 
         $this->response->html($this->helper->layout->project('category/remove', array(
             'project' => $project,
@@ -139,7 +146,7 @@ class Category extends Base
     {
         $this->checkCSRFParam();
         $project = $this->getProject();
-        $category = $this->getCategory($project['id']);
+        $category = $this->getCategory();
 
         if ($this->category->remove($category['id'])) {
             $this->flash->success(t('Category removed successfully.'));
diff --git a/app/Controller/Column.php b/app/Controller/Column.php
index bbe12fe1..294c31d8 100644
--- a/app/Controller/Column.php
+++ b/app/Controller/Column.php
@@ -2,13 +2,15 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
+
 /**
  * Column controller
  *
  * @package  controller
  * @author   Frederic Guillot
  */
-class Column extends Base
+class Column extends BaseController
 {
     /**
      * Display columns list
@@ -31,6 +33,9 @@ class Column extends Base
      * Show form to create a new column
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function create(array $values = array(), array $errors = array())
     {
@@ -69,7 +74,7 @@ class Column extends Base
             }
         }
 
-        $this->create($values, $errors);
+        return $this->create($values, $errors);
     }
 
     /**
@@ -108,13 +113,13 @@ class Column extends Base
         if ($valid) {
             if ($this->column->update($values['id'], $values['title'], $values['task_limit'], $values['description'])) {
                 $this->flash->success(t('Board updated successfully.'));
-                $this->response->redirect($this->helper->url->to('column', 'index', array('project_id' => $project['id'])));
+                return $this->response->redirect($this->helper->url->to('column', 'index', array('project_id' => $project['id'])));
             } else {
                 $this->flash->failure(t('Unable to update this board.'));
             }
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     /**
@@ -129,10 +134,10 @@ class Column extends Base
 
         if (! empty($values) && isset($values['column_id']) && isset($values['position'])) {
             $result = $this->column->changePosition($project['id'], $values['column_id'], $values['position']);
-            return $this->response->json(array('result' => $result));
+            $this->response->json(array('result' => $result));
+        } else {
+            throw new AccessForbiddenException();
         }
-
-        $this->forbidden();
     }
 
     /**
diff --git a/app/Controller/Comment.php b/app/Controller/Comment.php
index 0b39f390..83a67b41 100644
--- a/app/Controller/Comment.php
+++ b/app/Controller/Comment.php
@@ -2,30 +2,35 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
+use Kanboard\Core\Controller\PageNotFoundException;
+
 /**
  * Comment controller
  *
  * @package  controller
  * @author   Frederic Guillot
  */
-class Comment extends Base
+class Comment extends BaseController
 {
     /**
      * Get the current comment
      *
      * @access private
      * @return array
+     * @throws PageNotFoundException
+     * @throws AccessForbiddenException
      */
     private function getComment()
     {
         $comment = $this->comment->getById($this->request->getIntegerParam('comment_id'));
 
         if (empty($comment)) {
-            return $this->notfound();
+            throw new PageNotFoundException();
         }
 
         if (! $this->userSession->isAdmin() && $comment['user_id'] != $this->userSession->getId()) {
-            return $this->forbidden();
+            throw new AccessForbiddenException();
         }
 
         return $comment;
@@ -35,6 +40,10 @@ class Comment extends Base
      * Add comment form
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws AccessForbiddenException
+     * @throws PageNotFoundException
      */
     public function create(array $values = array(), array $errors = array())
     {
@@ -76,13 +85,17 @@ class Comment extends Base
             return $this->response->redirect($this->helper->url->to('task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id']), 'comments'), true);
         }
 
-        $this->create($values, $errors);
+        return $this->create($values, $errors);
     }
 
     /**
      * Edit a comment
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws AccessForbiddenException
+     * @throws PageNotFoundException
      */
     public function edit(array $values = array(), array $errors = array())
     {
@@ -121,7 +134,7 @@ class Comment extends Base
             return $this->response->redirect($this->helper->url->to('task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id'])), false);
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     /**
diff --git a/app/Controller/Config.php b/app/Controller/Config.php
index 021534cf..ebb541d2 100644
--- a/app/Controller/Config.php
+++ b/app/Controller/Config.php
@@ -8,51 +8,9 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Config extends Base
+class Config extends BaseController
 {
     /**
-     * Common method between pages
-     *
-     * @access private
-     * @param  string     $redirect    Action to redirect after saving the form
-     */
-    private function common($redirect)
-    {
-        if ($this->request->isPost()) {
-            $values =  $this->request->getValues();
-
-            switch ($redirect) {
-                case 'application':
-                    $values += array('password_reset' => 0);
-                    break;
-                case 'project':
-                    $values += array(
-                        'subtask_restriction' => 0,
-                        'subtask_time_tracking' => 0,
-                        'cfd_include_closed_tasks' => 0,
-                        'disable_private_project' => 0,
-                    );
-                    break;
-                case 'integrations':
-                    $values += array('integration_gravatar' => 0);
-                    break;
-                case 'calendar':
-                    $values += array('calendar_user_subtasks_time_tracking' => 0);
-                    break;
-            }
-
-            if ($this->config->save($values)) {
-                $this->language->loadCurrentLanguage();
-                $this->flash->success(t('Settings saved successfully.'));
-            } else {
-                $this->flash->failure(t('Unable to save your settings.'));
-            }
-
-            $this->response->redirect($this->helper->url->to('config', $redirect));
-        }
-    }
-
-    /**
      * Display the about page
      *
      * @access public
@@ -68,6 +26,45 @@ class Config extends Base
     }
 
     /**
+     * Save settings
+     *
+     */
+    public function save()
+    {
+        $values =  $this->request->getValues();
+        $redirect = $this->request->getStringParam('redirect', 'application');
+
+        switch ($redirect) {
+            case 'application':
+                $values += array('password_reset' => 0);
+                break;
+            case 'project':
+                $values += array(
+                    'subtask_restriction' => 0,
+                    'subtask_time_tracking' => 0,
+                    'cfd_include_closed_tasks' => 0,
+                    'disable_private_project' => 0,
+                );
+                break;
+            case 'integrations':
+                $values += array('integration_gravatar' => 0);
+                break;
+            case 'calendar':
+                $values += array('calendar_user_subtasks_time_tracking' => 0);
+                break;
+        }
+
+        if ($this->config->save($values)) {
+            $this->language->loadCurrentLanguage();
+            $this->flash->success(t('Settings saved successfully.'));
+        } else {
+            $this->flash->failure(t('Unable to save your settings.'));
+        }
+
+        $this->response->redirect($this->helper->url->to('config', $redirect));
+    }
+
+    /**
      * Display the plugin page
      *
      * @access public
@@ -87,8 +84,6 @@ class Config extends Base
      */
     public function application()
     {
-        $this->common('application');
-
         $this->response->html($this->helper->layout->config('config/application', array(
             'languages' => $this->language->getLanguages(),
             'timezones' => $this->timezone->getTimezones(),
@@ -106,8 +101,6 @@ class Config extends Base
      */
     public function project()
     {
-        $this->common('project');
-
         $this->response->html($this->helper->layout->config('config/project', array(
             'colors' => $this->color->getList(),
             'default_columns' => implode(', ', $this->board->getDefaultColumns()),
@@ -122,8 +115,6 @@ class Config extends Base
      */
     public function board()
     {
-        $this->common('board');
-
         $this->response->html($this->helper->layout->config('config/board', array(
             'title' => t('Settings').' &gt; '.t('Board settings'),
         )));
@@ -136,8 +127,6 @@ class Config extends Base
      */
     public function calendar()
     {
-        $this->common('calendar');
-
         $this->response->html($this->helper->layout->config('config/calendar', array(
             'title' => t('Settings').' &gt; '.t('Calendar settings'),
         )));
@@ -150,8 +139,6 @@ class Config extends Base
      */
     public function integrations()
     {
-        $this->common('integrations');
-
         $this->response->html($this->helper->layout->config('config/integrations', array(
             'title' => t('Settings').' &gt; '.t('Integrations'),
         )));
@@ -164,8 +151,6 @@ class Config extends Base
      */
     public function webhook()
     {
-        $this->common('webhook');
-
         $this->response->html($this->helper->layout->config('config/webhook', array(
             'title' => t('Settings').' &gt; '.t('Webhook settings'),
         )));
@@ -191,7 +176,7 @@ class Config extends Base
     public function downloadDb()
     {
         $this->checkCSRFParam();
-        $this->response->forceDownload('db.sqlite.gz');
+        $this->response->withDownload('db.sqlite.gz');
         $this->response->binary($this->config->downloadDatabase());
     }
 
diff --git a/app/Controller/Currency.php b/app/Controller/Currency.php
index 3e0de905..872d6929 100644
--- a/app/Controller/Currency.php
+++ b/app/Controller/Currency.php
@@ -8,12 +8,14 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Currency extends Base
+class Currency extends BaseController
 {
     /**
      * Display all currency rates and form
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function index(array $values = array(), array $errors = array())
     {
@@ -40,13 +42,13 @@ class Currency extends Base
         if ($valid) {
             if ($this->currency->create($values['currency'], $values['rate'])) {
                 $this->flash->success(t('The currency rate have been added successfully.'));
-                $this->response->redirect($this->helper->url->to('currency', 'index'));
+                return $this->response->redirect($this->helper->url->to('currency', 'index'));
             } else {
                 $this->flash->failure(t('Unable to add this currency rate.'));
             }
         }
 
-        $this->index($values, $errors);
+        return $this->index($values, $errors);
     }
 
     /**
diff --git a/app/Controller/Customfilter.php b/app/Controller/Customfilter.php
index 41da0b11..d0794366 100644
--- a/app/Controller/Customfilter.php
+++ b/app/Controller/Customfilter.php
@@ -2,6 +2,7 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
 use Kanboard\Core\Security\Role;
 
 /**
@@ -10,7 +11,7 @@ use Kanboard\Core\Security\Role;
  * @package controller
  * @author  Timo Litzbarski
  */
-class Customfilter extends Base
+class Customfilter extends BaseController
 {
     /**
      * Display list of filters
@@ -47,13 +48,13 @@ class Customfilter extends Base
         if ($valid) {
             if ($this->customFilter->create($values)) {
                 $this->flash->success(t('Your custom filter have been created successfully.'));
-                $this->response->redirect($this->helper->url->to('customfilter', 'index', array('project_id' => $project['id'])));
+                return $this->response->redirect($this->helper->url->to('customfilter', 'index', array('project_id' => $project['id'])));
             } else {
                 $this->flash->failure(t('Unable to create your custom filter.'));
             }
         }
 
-        $this->index($values, $errors);
+        return $this->index($values, $errors);
     }
 
     /**
@@ -143,13 +144,13 @@ class Customfilter extends Base
         if ($valid) {
             if ($this->customFilter->update($values)) {
                 $this->flash->success(t('Your custom filter have been updated successfully.'));
-                $this->response->redirect($this->helper->url->to('customfilter', 'index', array('project_id' => $project['id'])));
+                return $this->response->redirect($this->helper->url->to('customfilter', 'index', array('project_id' => $project['id'])));
             } else {
                 $this->flash->failure(t('Unable to update custom filter.'));
             }
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     private function checkPermission(array $project, array $filter)
@@ -157,7 +158,7 @@ class Customfilter extends Base
         $user_id = $this->userSession->getId();
 
         if ($filter['user_id'] != $user_id && ($this->projectUserRole->getUserRole($project['id'], $user_id) === Role::PROJECT_MANAGER || ! $this->userSession->isAdmin())) {
-            $this->forbidden();
+            throw new AccessForbiddenException();
         }
     }
 }
diff --git a/app/Controller/App.php b/app/Controller/DashboardController.php
index 01f733ff..b05cd209 100644
--- a/app/Controller/App.php
+++ b/app/Controller/DashboardController.php
@@ -6,12 +6,12 @@ use Kanboard\Model\Project as ProjectModel;
 use Kanboard\Model\Subtask as SubtaskModel;
 
 /**
- * Application controller
+ * Dashboard Controller
  *
- * @package  controller
+ * @package  Kanboard\Controller
  * @author   Frederic Guillot
  */
-class App extends Base
+class DashboardController extends BaseController
 {
     /**
      * Get project pagination
@@ -25,7 +25,7 @@ class App extends Base
     private function getProjectPaginator($user_id, $action, $max)
     {
         return $this->paginator
-            ->setUrl('app', $action, array('pagination' => 'projects', 'user_id' => $user_id))
+            ->setUrl('DashboardController', $action, array('pagination' => 'projects', 'user_id' => $user_id))
             ->setMax($max)
             ->setOrder(ProjectModel::TABLE.'.name')
             ->setQuery($this->project->getQueryColumnStats($this->projectPermission->getActiveProjectIds($user_id)))
@@ -44,7 +44,7 @@ class App extends Base
     private function getTaskPaginator($user_id, $action, $max)
     {
         return $this->paginator
-            ->setUrl('app', $action, array('pagination' => 'tasks', 'user_id' => $user_id))
+            ->setUrl('DashboardController', $action, array('pagination' => 'tasks', 'user_id' => $user_id))
             ->setMax($max)
             ->setOrder('tasks.id')
             ->setQuery($this->taskFinder->getUserQuery($user_id))
@@ -63,7 +63,7 @@ class App extends Base
     private function getSubtaskPaginator($user_id, $action, $max)
     {
         return $this->paginator
-            ->setUrl('app', $action, array('pagination' => 'subtasks', 'user_id' => $user_id))
+            ->setUrl('DashboardController', $action, array('pagination' => 'subtasks', 'user_id' => $user_id))
             ->setMax($max)
             ->setOrder('tasks.id')
             ->setQuery($this->subtask->getUserQuery($user_id, array(SubTaskModel::STATUS_TODO, SubtaskModel::STATUS_INPROGRESS)))
@@ -71,25 +71,15 @@ class App extends Base
     }
 
     /**
-     * Check if the user is connected
-     *
-     * @access public
-     */
-    public function status()
-    {
-        $this->response->text('OK');
-    }
-
-    /**
      * Dashboard overview
      *
      * @access public
      */
-    public function index()
+    public function show()
     {
         $user = $this->getUser();
 
-        $this->response->html($this->helper->layout->dashboard('app/overview', array(
+        $this->response->html($this->helper->layout->dashboard('dashboard/show', array(
             'title' => t('Dashboard'),
             'project_paginator' => $this->getProjectPaginator($user['id'], 'index', 10),
             'task_paginator' => $this->getTaskPaginator($user['id'], 'index', 10),
@@ -107,7 +97,7 @@ class App extends Base
     {
         $user = $this->getUser();
 
-        $this->response->html($this->helper->layout->dashboard('app/tasks', array(
+        $this->response->html($this->helper->layout->dashboard('dashboard/tasks', array(
             'title' => t('My tasks'),
             'paginator' => $this->getTaskPaginator($user['id'], 'tasks', 50),
             'user' => $user,
@@ -123,7 +113,7 @@ class App extends Base
     {
         $user = $this->getUser();
 
-        $this->response->html($this->helper->layout->dashboard('app/subtasks', array(
+        $this->response->html($this->helper->layout->dashboard('dashboard/subtasks', array(
             'title' => t('My subtasks'),
             'paginator' => $this->getSubtaskPaginator($user['id'], 'subtasks', 50),
             'user' => $user,
@@ -139,7 +129,7 @@ class App extends Base
     {
         $user = $this->getUser();
 
-        $this->response->html($this->helper->layout->dashboard('app/projects', array(
+        $this->response->html($this->helper->layout->dashboard('dashboard/projects', array(
             'title' => t('My projects'),
             'paginator' => $this->getProjectPaginator($user['id'], 'projects', 25),
             'user' => $user,
@@ -155,7 +145,7 @@ class App extends Base
     {
         $user = $this->getUser();
 
-        $this->response->html($this->helper->layout->dashboard('app/activity', array(
+        $this->response->html($this->helper->layout->dashboard('dashboard/activity', array(
             'title' => t('My activity stream'),
             'events' => $this->helper->projectActivity->getProjectsEvents($this->projectPermission->getActiveProjectIds($user['id']), 100),
             'user' => $user,
@@ -169,7 +159,7 @@ class App extends Base
      */
     public function calendar()
     {
-        $this->response->html($this->helper->layout->dashboard('app/calendar', array(
+        $this->response->html($this->helper->layout->dashboard('dashboard/calendar', array(
             'title' => t('My calendar'),
             'user' => $this->getUser(),
         )));
@@ -184,7 +174,7 @@ class App extends Base
     {
         $user = $this->getUser();
 
-        $this->response->html($this->helper->layout->dashboard('app/notifications', array(
+        $this->response->html($this->helper->layout->dashboard('dashboard/notifications', array(
             'title' => t('My notifications'),
             'notifications' => $this->userUnreadNotification->getAll($user['id']),
             'user' => $user,
diff --git a/app/Controller/Doc.php b/app/Controller/Doc.php
index 219ef8ad..5caf5f5f 100644
--- a/app/Controller/Doc.php
+++ b/app/Controller/Doc.php
@@ -10,7 +10,7 @@ use Parsedown;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Doc extends Base
+class Doc extends BaseController
 {
     public function show()
     {
diff --git a/app/Controller/Export.php b/app/Controller/Export.php
index c2ff652e..f5783b72 100644
--- a/app/Controller/Export.php
+++ b/app/Controller/Export.php
@@ -8,12 +8,18 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Export extends Base
+class Export extends BaseController
 {
     /**
      * Common export method
      *
      * @access private
+     * @param  string $model
+     * @param  string $method
+     * @param  string $filename
+     * @param  string $action
+     * @param  string $page_title
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     private function common($model, $method, $filename, $action, $page_title)
     {
@@ -23,7 +29,7 @@ class Export extends Base
 
         if ($from && $to) {
             $data = $this->$model->$method($project['id'], $from, $to);
-            $this->response->forceDownload($filename.'.csv');
+            $this->response->withDownload($filename.'.csv');
             $this->response->csv($data);
         }
 
diff --git a/app/Controller/Feed.php b/app/Controller/Feed.php
index f8b3d320..7554a499 100644
--- a/app/Controller/Feed.php
+++ b/app/Controller/Feed.php
@@ -2,13 +2,15 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
+
 /**
  * Atom/RSS Feed controller
  *
  * @package  controller
  * @author   Frederic Guillot
  */
-class Feed extends Base
+class Feed extends BaseController
 {
     /**
      * RSS feed for a user
@@ -22,7 +24,7 @@ class Feed extends Base
 
         // Token verification
         if (empty($user)) {
-            $this->forbidden(true);
+            throw AccessForbiddenException::getInstance()->withoutLayout();
         }
 
         $this->response->xml($this->template->render('feed/user', array(
@@ -41,9 +43,8 @@ class Feed extends Base
         $token = $this->request->getStringParam('token');
         $project = $this->project->getByToken($token);
 
-        // Token verification
         if (empty($project)) {
-            $this->forbidden(true);
+            throw AccessForbiddenException::getInstance()->withoutLayout();
         }
 
         $this->response->xml($this->template->render('feed/project', array(
diff --git a/app/Controller/FileViewer.php b/app/Controller/FileViewer.php
index 3be4ea14..a990e12a 100644
--- a/app/Controller/FileViewer.php
+++ b/app/Controller/FileViewer.php
@@ -10,7 +10,7 @@ use Kanboard\Core\ObjectStorage\ObjectStorageException;
  * @package  controller
  * @author   Frederic Guillot
  */
-class FileViewer extends Base
+class FileViewer extends BaseController
 {
     /**
      * Get file content from object storage
@@ -24,11 +24,9 @@ class FileViewer extends Base
         $content = '';
 
         try {
-
             if ($file['is_image'] == 0) {
                 $content = $this->objectStorage->get($file['path']);
             }
-
         } catch (ObjectStorageException $e) {
             $this->logger->error($e->getMessage());
         }
@@ -68,17 +66,18 @@ class FileViewer extends Base
     {
         $file = $this->getFile();
         $etag = md5($file['path']);
-        $this->response->contentType($this->helper->file->getImageMimeType($file['name']));
-        $this->response->cache(5 * 86400, $etag);
+        $this->response->withContentType($this->helper->file->getImageMimeType($file['name']));
+        $this->response->withCache(5 * 86400, $etag);
 
         if ($this->request->getHeader('If-None-Match') === '"'.$etag.'"') {
-            return $this->response->status(304);
-        }
+            $this->response->status(304);
+        } else {
 
-        try {
-            $this->objectStorage->output($file['path']);
-        } catch (ObjectStorageException $e) {
-            $this->logger->error($e->getMessage());
+            try {
+                $this->objectStorage->output($file['path']);
+            } catch (ObjectStorageException $e) {
+                $this->logger->error($e->getMessage());
+            }
         }
     }
 
@@ -94,23 +93,24 @@ class FileViewer extends Base
         $filename = $this->$model->getThumbnailPath($file['path']);
         $etag = md5($filename);
 
-        $this->response->cache(5 * 86400, $etag);
-        $this->response->contentType('image/jpeg');
+        $this->response->withCache(5 * 86400, $etag);
+        $this->response->withContentType('image/jpeg');
 
         if ($this->request->getHeader('If-None-Match') === '"'.$etag.'"') {
-            return $this->response->status(304);
-        }
+            $this->response->status(304);
+        } else {
 
-        try {
+            try {
 
-            $this->objectStorage->output($filename);
-        } catch (ObjectStorageException $e) {
-            $this->logger->error($e->getMessage());
+                $this->objectStorage->output($filename);
+            } catch (ObjectStorageException $e) {
+                $this->logger->error($e->getMessage());
 
-            // Try to generate thumbnail on the fly for images uploaded before Kanboard < 1.0.19
-            $data = $this->objectStorage->get($file['path']);
-            $this->$model->generateThumbnailFromData($file['path'], $data);
-            $this->objectStorage->output($this->$model->getThumbnailPath($file['path']));
+                // Try to generate thumbnail on the fly for images uploaded before Kanboard < 1.0.19
+                $data = $this->objectStorage->get($file['path']);
+                $this->$model->generateThumbnailFromData($file['path'], $data);
+                $this->objectStorage->output($this->$model->getThumbnailPath($file['path']));
+            }
         }
     }
 
@@ -123,7 +123,7 @@ class FileViewer extends Base
     {
         try {
             $file = $this->getFile();
-            $this->response->forceDownload($file['name']);
+            $this->response->withDownload($file['name']);
             $this->objectStorage->output($file['path']);
         } catch (ObjectStorageException $e) {
             $this->logger->error($e->getMessage());
diff --git a/app/Controller/Gantt.php b/app/Controller/Gantt.php
index 5e9ad55e..d062b2fe 100644
--- a/app/Controller/Gantt.php
+++ b/app/Controller/Gantt.php
@@ -17,7 +17,7 @@ use Kanboard\Model\Project as ProjectModel;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Gantt extends Base
+class Gantt extends BaseController
 {
     /**
      * Show Gantt chart for all projects
@@ -53,9 +53,9 @@ class Gantt extends Base
 
         if (! $result) {
             $this->response->json(array('message' => 'Unable to save project'), 400);
+        } else {
+            $this->response->json(array('message' => 'OK'), 201);
         }
-
-        $this->response->json(array('message' => 'OK'), 201);
     }
 
     /**
@@ -99,15 +99,18 @@ class Gantt extends Base
 
         if (! $result) {
             $this->response->json(array('message' => 'Unable to save task'), 400);
+        } else {
+            $this->response->json(array('message' => 'OK'), 201);
         }
-
-        $this->response->json(array('message' => 'OK'), 201);
     }
 
     /**
      * Simplified form to create a new task
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function task(array $values = array(), array $errors = array())
     {
@@ -151,12 +154,12 @@ class Gantt extends Base
 
             if ($task_id !== false) {
                 $this->flash->success(t('Task created successfully.'));
-                $this->response->redirect($this->helper->url->to('gantt', 'project', array('project_id' => $project['id'])));
+                return $this->response->redirect($this->helper->url->to('gantt', 'project', array('project_id' => $project['id'])));
             } else {
                 $this->flash->failure(t('Unable to create your task.'));
             }
         }
 
-        $this->task($values, $errors);
+        return $this->task($values, $errors);
     }
 }
diff --git a/app/Controller/Group.php b/app/Controller/Group.php
index fa47f428..2f91e72a 100644
--- a/app/Controller/Group.php
+++ b/app/Controller/Group.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Group extends Base
+class Group extends BaseController
 {
     /**
      * List all groups
@@ -58,6 +58,8 @@ class Group extends Base
      * Display a form to create a new group
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function create(array $values = array(), array $errors = array())
     {
@@ -81,19 +83,21 @@ class Group extends Base
         if ($valid) {
             if ($this->group->create($values['name']) !== false) {
                 $this->flash->success(t('Group created successfully.'));
-                $this->response->redirect($this->helper->url->to('group', 'index'));
+                return $this->response->redirect($this->helper->url->to('group', 'index'));
             } else {
                 $this->flash->failure(t('Unable to create your group.'));
             }
         }
 
-        $this->create($values, $errors);
+        return $this->create($values, $errors);
     }
 
     /**
      * Display a form to update a group
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function edit(array $values = array(), array $errors = array())
     {
@@ -121,24 +125,26 @@ class Group extends Base
         if ($valid) {
             if ($this->group->update($values) !== false) {
                 $this->flash->success(t('Group updated successfully.'));
-                $this->response->redirect($this->helper->url->to('group', 'index'));
+                return $this->response->redirect($this->helper->url->to('group', 'index'));
             } else {
                 $this->flash->failure(t('Unable to update your group.'));
             }
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     /**
      * Form to associate a user to a group
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function associate(array $values = array(), array $errors = array())
     {
         $group_id = $this->request->getIntegerParam('group_id');
-        $group = $this->group->getbyId($group_id);
+        $group = $this->group->getById($group_id);
 
         if (empty($values)) {
             $values['group_id'] = $group_id;
@@ -165,13 +171,13 @@ class Group extends Base
         if (isset($values['group_id']) && isset($values['user_id'])) {
             if ($this->groupMember->addUser($values['group_id'], $values['user_id'])) {
                 $this->flash->success(t('Group member added successfully.'));
-                $this->response->redirect($this->helper->url->to('group', 'users', array('group_id' => $values['group_id'])));
+                return $this->response->redirect($this->helper->url->to('group', 'users', array('group_id' => $values['group_id'])));
             } else {
                 $this->flash->failure(t('Unable to add group member.'));
             }
         }
 
-        $this->associate($values);
+        return $this->associate($values);
     }
 
     /**
diff --git a/app/Controller/GroupHelper.php b/app/Controller/GroupHelper.php
index 429614c2..06e5ec71 100644
--- a/app/Controller/GroupHelper.php
+++ b/app/Controller/GroupHelper.php
@@ -10,7 +10,7 @@ use Kanboard\Formatter\GroupAutoCompleteFormatter;
  * @package  controller
  * @author   Frederic Guillot
  */
-class GroupHelper extends Base
+class GroupHelper extends BaseController
 {
     /**
      * Group auto-completion (Ajax)
diff --git a/app/Controller/Ical.php b/app/Controller/Ical.php
index 8fe97b46..091ea5f4 100644
--- a/app/Controller/Ical.php
+++ b/app/Controller/Ical.php
@@ -2,6 +2,7 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
 use Kanboard\Core\Filter\QueryBuilder;
 use Kanboard\Filter\TaskAssigneeFilter;
 use Kanboard\Filter\TaskProjectFilter;
@@ -16,7 +17,7 @@ use Eluceo\iCal\Component\Calendar as iCalendar;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Ical extends Base
+class Ical extends BaseController
 {
     /**
      * Get user iCalendar
@@ -30,7 +31,7 @@ class Ical extends Base
 
         // Token verification
         if (empty($user)) {
-            $this->forbidden(true);
+            throw AccessForbiddenException::getInstance()->withoutLayout();
         }
 
         // Common filter
@@ -61,7 +62,7 @@ class Ical extends Base
 
         // Token verification
         if (empty($project)) {
-            $this->forbidden(true);
+            throw AccessForbiddenException::getInstance()->withoutLayout();
         }
 
         // Common filter
@@ -84,6 +85,8 @@ class Ical extends Base
      * Common method to render iCal events
      *
      * @access private
+     * @param QueryBuilder $queryBuilder
+     * @param iCalendar    $calendar
      */
     private function renderCalendar(QueryBuilder $queryBuilder, iCalendar $calendar)
     {
diff --git a/app/Controller/Link.php b/app/Controller/Link.php
index ec7ab1af..d28f5e4e 100644
--- a/app/Controller/Link.php
+++ b/app/Controller/Link.php
@@ -2,6 +2,8 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\PageNotFoundException;
+
 /**
  * Link controller
  *
@@ -9,20 +11,21 @@ namespace Kanboard\Controller;
  * @author  Olivier Maridat
  * @author  Frederic Guillot
  */
-class Link extends Base
+class Link extends BaseController
 {
     /**
      * Get the current link
      *
      * @access private
      * @return array
+     * @throws PageNotFoundException
      */
     private function getLink()
     {
         $link = $this->link->getById($this->request->getIntegerParam('link_id'));
 
         if (empty($link)) {
-            $this->notfound();
+            throw new PageNotFoundException();
         }
 
         return $link;
@@ -32,6 +35,8 @@ class Link extends Base
      * List of links
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function index(array $values = array(), array $errors = array())
     {
@@ -56,19 +61,22 @@ class Link extends Base
         if ($valid) {
             if ($this->link->create($values['label'], $values['opposite_label']) !== false) {
                 $this->flash->success(t('Link added successfully.'));
-                $this->response->redirect($this->helper->url->to('link', 'index'));
+                return $this->response->redirect($this->helper->url->to('link', 'index'));
             } else {
                 $this->flash->failure(t('Unable to create your link.'));
             }
         }
 
-        $this->index($values, $errors);
+        return $this->index($values, $errors);
     }
 
     /**
      * Edit form
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws PageNotFoundException
      */
     public function edit(array $values = array(), array $errors = array())
     {
@@ -97,13 +105,13 @@ class Link extends Base
         if ($valid) {
             if ($this->link->update($values)) {
                 $this->flash->success(t('Link updated successfully.'));
-                $this->response->redirect($this->helper->url->to('link', 'index'));
+                return $this->response->redirect($this->helper->url->to('link', 'index'));
             } else {
                 $this->flash->failure(t('Unable to update your link.'));
             }
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     /**
diff --git a/app/Controller/Listing.php b/app/Controller/Listing.php
index 2024ff03..93a7b836 100644
--- a/app/Controller/Listing.php
+++ b/app/Controller/Listing.php
@@ -11,7 +11,7 @@ use Kanboard\Model\Task as TaskModel;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Listing extends Base
+class Listing extends BaseController
 {
     /**
      * Show list view for projects
diff --git a/app/Controller/Oauth.php b/app/Controller/Oauth.php
index 12b91144..c38654be 100644
--- a/app/Controller/Oauth.php
+++ b/app/Controller/Oauth.php
@@ -10,7 +10,7 @@ use Kanboard\Core\Security\OAuthAuthenticationProviderInterface;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Oauth extends Base
+class Oauth extends BaseController
 {
     /**
      * Redirect to the provider if no code received
@@ -106,7 +106,7 @@ class Oauth extends Base
     protected function authenticate($providerName)
     {
         if ($this->authenticationManager->oauthAuthentication($providerName)) {
-            $this->response->redirect($this->helper->url->to('app', 'index'));
+            $this->response->redirect($this->helper->url->to('DashboardController', 'show'));
         } else {
             $this->authenticationFailure(t('External authentication failed'));
         }
diff --git a/app/Controller/PasswordReset.php b/app/Controller/PasswordReset.php
index f6a0eb8e..7050d6d2 100644
--- a/app/Controller/PasswordReset.php
+++ b/app/Controller/PasswordReset.php
@@ -2,13 +2,15 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
+
 /**
  * Password Reset Controller
  *
  * @package controller
  * @author  Frederic Guillot
  */
-class PasswordReset extends Base
+class PasswordReset extends BaseController
 {
     /**
      * Show the form to reset the password
@@ -37,9 +39,9 @@ class PasswordReset extends Base
         if ($valid) {
             $this->sendEmail($values['username']);
             $this->response->redirect($this->helper->url->to('auth', 'login'));
+        } else {
+            $this->create($values, $errors);
         }
-
-        $this->create($values, $errors);
     }
 
     /**
@@ -59,9 +61,9 @@ class PasswordReset extends Base
                 'values' => $values,
                 'no_layout' => true,
             )));
+        } else {
+            $this->response->redirect($this->helper->url->to('auth', 'login'));
         }
-
-        $this->response->redirect($this->helper->url->to('auth', 'login'));
     }
 
     /**
@@ -83,10 +85,10 @@ class PasswordReset extends Base
                 $this->passwordReset->disable($user_id);
             }
 
-            $this->response->redirect($this->helper->url->to('auth', 'login'));
+            return $this->response->redirect($this->helper->url->to('auth', 'login'));
         }
 
-        $this->change($values, $errors);
+        return $this->change($values, $errors);
     }
 
     /**
@@ -114,7 +116,7 @@ class PasswordReset extends Base
     private function checkActivation()
     {
         if ($this->config->get('password_reset', 0) == 0) {
-            $this->response->redirect($this->helper->url->to('auth', 'login'));
+            throw AccessForbiddenException::getInstance()->withoutLayout();
         }
     }
 }
diff --git a/app/Controller/Project.php b/app/Controller/Project.php
index cdfbd94a..22a9ad30 100644
--- a/app/Controller/Project.php
+++ b/app/Controller/Project.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Project extends Base
+class Project extends BaseController
 {
     /**
      * List of projects
@@ -75,12 +75,9 @@ class Project extends Base
             }
 
             $this->response->redirect($this->helper->url->to('project', 'share', array('project_id' => $project['id'])));
+        } else {
+            $this->show();
         }
-
-        $this->response->html($this->helper->layout->project('project/share', array(
-            'project' => $project,
-            'title' => t('Public access'),
-        )));
     }
 
     /**
@@ -96,15 +93,15 @@ class Project extends Base
             $this->projectMetadata->save($project['id'], $this->request->getValues());
             $this->flash->success(t('Project updated successfully.'));
             $this->response->redirect($this->helper->url->to('project', 'integrations', array('project_id' => $project['id'])));
+        } else {
+            $this->response->html($this->helper->layout->project('project/integrations', array(
+                'project' => $project,
+                'title' => t('Integrations'),
+                'webhook_token' => $this->config->get('webhook_token'),
+                'values' => $this->projectMetadata->getAll($project['id']),
+                'errors' => array(),
+            )));
         }
-
-        $this->response->html($this->helper->layout->project('project/integrations', array(
-            'project' => $project,
-            'title' => t('Integrations'),
-            'webhook_token' => $this->config->get('webhook_token'),
-            'values' => $this->projectMetadata->getAll($project['id']),
-            'errors' => array(),
-        )));
     }
 
     /**
@@ -120,10 +117,10 @@ class Project extends Base
             $values = $this->request->getValues();
             $this->projectNotification->saveSettings($project['id'], $values);
             $this->flash->success(t('Project updated successfully.'));
-            $this->response->redirect($this->helper->url->to('project', 'notifications', array('project_id' => $project['id'])));
+            return $this->response->redirect($this->helper->url->to('project', 'notifications', array('project_id' => $project['id'])));
         }
 
-        $this->response->html($this->helper->layout->project('project/notifications', array(
+        return $this->response->html($this->helper->layout->project('project/notifications', array(
             'notifications' => $this->projectNotification->readSettings($project['id']),
             'types' => $this->projectNotificationType->getTypes(),
             'project' => $project,
@@ -149,10 +146,10 @@ class Project extends Base
                 $this->flash->failure(t('Unable to remove this project.'));
             }
 
-            $this->response->redirect($this->helper->url->to('project', 'index'));
+            return $this->response->redirect($this->helper->url->to('project', 'index'));
         }
 
-        $this->response->html($this->helper->layout->project('project/remove', array(
+        return $this->response->html($this->helper->layout->project('project/remove', array(
             'project' => $project,
             'title' => t('Remove project')
         )));
@@ -178,10 +175,10 @@ class Project extends Base
                 $this->flash->failure(t('Unable to clone this project.'));
             }
 
-            $this->response->redirect($this->helper->url->to('project', 'show', array('project_id' => $project_id)));
+            return $this->response->redirect($this->helper->url->to('project', 'show', array('project_id' => $project_id)));
         }
 
-        $this->response->html($this->helper->layout->project('project/duplicate', array(
+        return $this->response->html($this->helper->layout->project('project/duplicate', array(
             'project' => $project,
             'title' => t('Clone this project')
         )));
@@ -205,10 +202,10 @@ class Project extends Base
                 $this->flash->failure(t('Unable to disable this project.'));
             }
 
-            $this->response->redirect($this->helper->url->to('project', 'show', array('project_id' => $project['id'])));
+            return $this->response->redirect($this->helper->url->to('project', 'show', array('project_id' => $project['id'])));
         }
 
-        $this->response->html($this->helper->layout->project('project/disable', array(
+        return $this->response->html($this->helper->layout->project('project/disable', array(
             'project' => $project,
             'title' => t('Project activation')
         )));
@@ -232,10 +229,10 @@ class Project extends Base
                 $this->flash->failure(t('Unable to activate this project.'));
             }
 
-            $this->response->redirect($this->helper->url->to('project', 'show', array('project_id' => $project['id'])));
+            return $this->response->redirect($this->helper->url->to('project', 'show', array('project_id' => $project['id'])));
         }
 
-        $this->response->html($this->helper->layout->project('project/enable', array(
+        return $this->response->html($this->helper->layout->project('project/enable', array(
             'project' => $project,
             'title' => t('Project activation')
         )));
diff --git a/app/Controller/ProjectCreation.php b/app/Controller/ProjectCreation.php
index 88f41fcd..ed997fea 100644
--- a/app/Controller/ProjectCreation.php
+++ b/app/Controller/ProjectCreation.php
@@ -8,12 +8,14 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class ProjectCreation extends Base
+class ProjectCreation extends BaseController
 {
     /**
      * Display a form to create a new project
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function create(array $values = array(), array $errors = array())
     {
@@ -33,6 +35,8 @@ class ProjectCreation extends Base
      * Display a form to create a private project
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function createPrivate(array $values = array(), array $errors = array())
     {
@@ -61,7 +65,7 @@ class ProjectCreation extends Base
             $this->flash->failure(t('Unable to create your project.'));
         }
 
-        $this->create($values, $errors);
+        return $this->create($values, $errors);
     }
 
     /**
diff --git a/app/Controller/ProjectEdit.php b/app/Controller/ProjectEdit.php
index 94be0206..e3ba74c3 100644
--- a/app/Controller/ProjectEdit.php
+++ b/app/Controller/ProjectEdit.php
@@ -8,12 +8,14 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class ProjectEdit extends Base
+class ProjectEdit extends BaseController
 {
     /**
      * General edition (most common operations)
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function edit(array $values = array(), array $errors = array())
     {
@@ -24,6 +26,8 @@ class ProjectEdit extends Base
      * Change start and end dates
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function dates(array $values = array(), array $errors = array())
     {
@@ -34,6 +38,8 @@ class ProjectEdit extends Base
      * Change project description
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function description(array $values = array(), array $errors = array())
     {
@@ -44,6 +50,8 @@ class ProjectEdit extends Base
      * Change task priority
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function priority(array $values = array(), array $errors = array())
     {
@@ -67,13 +75,13 @@ class ProjectEdit extends Base
         if ($valid) {
             if ($this->project->update($values)) {
                 $this->flash->success(t('Project updated successfully.'));
-                $this->response->redirect($this->helper->url->to('ProjectEdit', $redirect, array('project_id' => $project['id'])), true);
+                return $this->response->redirect($this->helper->url->to('ProjectEdit', $redirect, array('project_id' => $project['id'])), true);
             } else {
                 $this->flash->failure(t('Unable to update this project.'));
             }
         }
 
-        $this->$redirect($values, $errors);
+        return $this->$redirect($values, $errors);
     }
 
     /**
diff --git a/app/Controller/ProjectFile.php b/app/Controller/ProjectFile.php
index 96764a92..6ec5ff27 100644
--- a/app/Controller/ProjectFile.php
+++ b/app/Controller/ProjectFile.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class ProjectFile extends Base
+class ProjectFile extends BaseController
 {
     /**
      * File upload form
diff --git a/app/Controller/ProjectOverview.php b/app/Controller/ProjectOverview.php
index b2bb33d6..f8837f95 100644
--- a/app/Controller/ProjectOverview.php
+++ b/app/Controller/ProjectOverview.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class ProjectOverview extends Base
+class ProjectOverview extends BaseController
 {
     /**
      * Show project overview
diff --git a/app/Controller/ProjectPermission.php b/app/Controller/ProjectPermission.php
index e203c0db..f50a96b8 100644
--- a/app/Controller/ProjectPermission.php
+++ b/app/Controller/ProjectPermission.php
@@ -2,6 +2,7 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
 use Kanboard\Core\Security\Role;
 
 /**
@@ -10,7 +11,7 @@ use Kanboard\Core\Security\Role;
  * @package  controller
  * @author   Frederic Guillot
  */
-class ProjectPermission extends Base
+class ProjectPermission extends BaseController
 {
     /**
      * Permissions are only available for team projects
@@ -18,13 +19,14 @@ class ProjectPermission extends Base
      * @access protected
      * @param  integer      $project_id    Default project id
      * @return array
+     * @throws AccessForbiddenException
      */
     protected function getProject($project_id = 0)
     {
         $project = parent::getProject($project_id);
 
         if ($project['is_private'] == 1) {
-            $this->forbidden();
+            throw new AccessForbiddenException();
         }
 
         return $project;
@@ -34,6 +36,9 @@ class ProjectPermission extends Base
      * Show all permissions
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws AccessForbiddenException
      */
     public function index(array $values = array(), array $errors = array())
     {
diff --git a/app/Controller/Projectuser.php b/app/Controller/Projectuser.php
index a6d4fe4e..fe1fe0f1 100644
--- a/app/Controller/Projectuser.php
+++ b/app/Controller/Projectuser.php
@@ -12,7 +12,7 @@ use Kanboard\Core\Security\Role;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Projectuser extends Base
+class Projectuser extends BaseController
 {
     private function common()
     {
@@ -94,7 +94,7 @@ class Projectuser extends Base
      */
     public function members()
     {
-        $this->role(ROLE::PROJECT_MEMBER, 'members', t('People who are project members'), 'Projects where "%s" is member');
+        $this->role(Role::PROJECT_MEMBER, 'members', t('People who are project members'), 'Projects where "%s" is member');
     }
 
     /**
diff --git a/app/Controller/Search.php b/app/Controller/Search.php
index a42e9d3d..a092cba6 100644
--- a/app/Controller/Search.php
+++ b/app/Controller/Search.php
@@ -10,7 +10,7 @@ use Kanboard\Filter\TaskProjectsFilter;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Search extends Base
+class Search extends BaseController
 {
     public function index()
     {
diff --git a/app/Controller/Subtask.php b/app/Controller/Subtask.php
index dea2b08e..dfe4415e 100644
--- a/app/Controller/Subtask.php
+++ b/app/Controller/Subtask.php
@@ -2,18 +2,24 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
+
 /**
  * Subtask controller
  *
  * @package  controller
  * @author   Frederic Guillot
  */
-class Subtask extends Base
+class Subtask extends BaseController
 {
     /**
      * Creation form
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws AccessForbiddenException
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function create(array $values = array(), array $errors = array())
     {
@@ -60,18 +66,22 @@ class Subtask extends Base
             return $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $task['project_id'], 'task_id' => $task['id']), 'subtasks'), true);
         }
 
-        $this->create($values, $errors);
+        return $this->create($values, $errors);
     }
 
     /**
      * Edit form
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws AccessForbiddenException
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function edit(array $values = array(), array $errors = array())
     {
         $task = $this->getTask();
-        $subtask = $this->getSubTask();
+        $subtask = $this->getSubtask();
 
         $this->response->html($this->template->render('subtask/edit', array(
             'values' => empty($values) ? $subtask : $values,
@@ -106,7 +116,7 @@ class Subtask extends Base
             return $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $task['project_id'], 'task_id' => $task['id'])), true);
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     /**
@@ -158,9 +168,9 @@ class Subtask extends Base
 
         if (! empty($values) && $this->helper->user->hasProjectAccess('Subtask', 'movePosition', $project_id)) {
             $result = $this->subtask->changePosition($task_id, $values['subtask_id'], $values['position']);
-            return $this->response->json(array('result' => $result));
+            $this->response->json(array('result' => $result));
+        } else {
+            throw new AccessForbiddenException();
         }
-
-        $this->forbidden();
     }
 }
diff --git a/app/Controller/SubtaskRestriction.php b/app/Controller/SubtaskRestriction.php
index 56024867..bfa3031c 100644
--- a/app/Controller/SubtaskRestriction.php
+++ b/app/Controller/SubtaskRestriction.php
@@ -10,7 +10,7 @@ use Kanboard\Model\Subtask as SubtaskModel;
  * @package  controller
  * @author   Frederic Guillot
  */
-class SubtaskRestriction extends Base
+class SubtaskRestriction extends BaseController
 {
     /**
      * Show popup
diff --git a/app/Controller/SubtaskStatus.php b/app/Controller/SubtaskStatus.php
index 4fb82fc0..e22e825e 100644
--- a/app/Controller/SubtaskStatus.php
+++ b/app/Controller/SubtaskStatus.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class SubtaskStatus extends Base
+class SubtaskStatus extends BaseController
 {
     /**
      * Change status to the next status: Toto -> In Progress -> Done
diff --git a/app/Controller/Swimlane.php b/app/Controller/Swimlane.php
index 8270a16f..4575e909 100644
--- a/app/Controller/Swimlane.php
+++ b/app/Controller/Swimlane.php
@@ -2,6 +2,8 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
+use Kanboard\Core\Controller\PageNotFoundException;
 use Kanboard\Model\Swimlane as SwimlaneModel;
 
 /**
@@ -10,22 +12,21 @@ use Kanboard\Model\Swimlane as SwimlaneModel;
  * @package controller
  * @author  Frederic Guillot
  */
-class Swimlane extends Base
+class Swimlane extends BaseController
 {
     /**
      * Get the swimlane (common method between actions)
      *
      * @access private
-     * @param  integer    $project_id
      * @return array
+     * @throws PageNotFoundException
      */
-    private function getSwimlane($project_id)
+    private function getSwimlane()
     {
         $swimlane = $this->swimlane->getById($this->request->getIntegerParam('swimlane_id'));
 
         if (empty($swimlane)) {
-            $this->flash->failure(t('Swimlane not found.'));
-            $this->response->redirect($this->helper->url->to('swimlane', 'index', array('project_id' => $project_id)));
+            throw new PageNotFoundException();
         }
 
         return $swimlane;
@@ -53,6 +54,9 @@ class Swimlane extends Base
      * Create a new swimlane
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function create(array $values = array(), array $errors = array())
     {
@@ -79,19 +83,22 @@ class Swimlane extends Base
         if ($valid) {
             if ($this->swimlane->create($values)) {
                 $this->flash->success(t('Your swimlane have been created successfully.'));
-                $this->response->redirect($this->helper->url->to('swimlane', 'index', array('project_id' => $project['id'])));
+                return $this->response->redirect($this->helper->url->to('swimlane', 'index', array('project_id' => $project['id'])));
             } else {
                 $errors = array('name' => array(t('Another swimlane with the same name exists in the project')));
             }
         }
 
-        $this->create($values, $errors);
+        return $this->create($values, $errors);
     }
 
     /**
      * Edit default swimlane (display the form)
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function editDefault(array $values = array(), array $errors = array())
     {
@@ -120,24 +127,27 @@ class Swimlane extends Base
         if ($valid) {
             if ($this->swimlane->updateDefault($values)) {
                 $this->flash->success(t('The default swimlane have been updated successfully.'));
-                $this->response->redirect($this->helper->url->to('swimlane', 'index', array('project_id' => $project['id'])), true);
+                return $this->response->redirect($this->helper->url->to('swimlane', 'index', array('project_id' => $project['id'])), true);
             } else {
                 $this->flash->failure(t('Unable to update this swimlane.'));
             }
         }
 
-        $this->editDefault($values, $errors);
+        return $this->editDefault($values, $errors);
     }
 
     /**
      * Edit a swimlane (display the form)
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function edit(array $values = array(), array $errors = array())
     {
         $project = $this->getProject();
-        $swimlane = $this->getSwimlane($project['id']);
+        $swimlane = $this->getSwimlane();
 
         $this->response->html($this->helper->layout->project('swimlane/edit', array(
             'values' => empty($values) ? $swimlane : $values,
@@ -161,13 +171,13 @@ class Swimlane extends Base
         if ($valid) {
             if ($this->swimlane->update($values)) {
                 $this->flash->success(t('Swimlane updated successfully.'));
-                $this->response->redirect($this->helper->url->to('swimlane', 'index', array('project_id' => $project['id'])));
+                return $this->response->redirect($this->helper->url->to('swimlane', 'index', array('project_id' => $project['id'])));
             } else {
                 $errors = array('name' => array(t('Another swimlane with the same name exists in the project')));
             }
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     /**
@@ -178,7 +188,7 @@ class Swimlane extends Base
     public function confirm()
     {
         $project = $this->getProject();
-        $swimlane = $this->getSwimlane($project['id']);
+        $swimlane = $this->getSwimlane();
 
         $this->response->html($this->helper->layout->project('swimlane/remove', array(
             'project' => $project,
@@ -296,9 +306,9 @@ class Swimlane extends Base
 
         if (! empty($values) && isset($values['swimlane_id']) && isset($values['position'])) {
             $result = $this->swimlane->changePosition($project['id'], $values['swimlane_id'], $values['position']);
-            return $this->response->json(array('result' => $result));
+            $this->response->json(array('result' => $result));
+        } else {
+            throw new AccessForbiddenException();
         }
-
-        $this->forbidden();
     }
 }
diff --git a/app/Controller/Task.php b/app/Controller/Task.php
index 072df87b..1ce13f69 100644
--- a/app/Controller/Task.php
+++ b/app/Controller/Task.php
@@ -2,6 +2,8 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
+use Kanboard\Core\Controller\PageNotFoundException;
 use Kanboard\Core\DateParser;
 
 /**
@@ -10,7 +12,7 @@ use Kanboard\Core\DateParser;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Task extends Base
+class Task extends BaseController
 {
     /**
      * Public access (display a task)
@@ -23,17 +25,17 @@ class Task extends Base
 
         // Token verification
         if (empty($project)) {
-            return $this->forbidden(true);
+            throw AccessForbiddenException::getInstance()->withoutLayout();
         }
 
         $task = $this->taskFinder->getDetails($this->request->getIntegerParam('task_id'));
 
         if (empty($task)) {
-            return $this->notfound(true);
+            throw PageNotFoundException::getInstance()->withoutLayout();
         }
 
         if ($task['project_id'] != $project['id']) {
-            return $this->forbidden(true);
+            throw AccessForbiddenException::getInstance()->withoutLayout();
         }
 
         $this->response->html($this->helper->layout->app('task/public', array(
@@ -152,7 +154,7 @@ class Task extends Base
         $task = $this->getTask();
 
         if (! $this->helper->user->canRemoveTask($task)) {
-            $this->forbidden();
+            throw new AccessForbiddenException();
         }
 
         if ($this->request->getStringParam('confirmation') === 'yes') {
@@ -164,10 +166,10 @@ class Task extends Base
                 $this->flash->failure(t('Unable to remove this task.'));
             }
 
-            $this->response->redirect($this->helper->url->to('board', 'show', array('project_id' => $task['project_id'])), true);
+            return $this->response->redirect($this->helper->url->to('board', 'show', array('project_id' => $task['project_id'])), true);
         }
 
-        $this->response->html($this->template->render('task/remove', array(
+        return $this->response->html($this->template->render('task/remove', array(
             'task' => $task,
         )));
     }
diff --git a/app/Controller/TaskBulk.php b/app/Controller/TaskBulk.php
index 4e9d4443..d0a1b276 100644
--- a/app/Controller/TaskBulk.php
+++ b/app/Controller/TaskBulk.php
@@ -7,7 +7,7 @@ namespace Kanboard\Controller;
  *
  * @package Kanboard\Controller
  */
-class TaskBulk extends Base
+class TaskBulk extends BaseController
 {
     /**
      * Show the form
diff --git a/app/Controller/TaskExternalLink.php b/app/Controller/TaskExternalLink.php
index 0db8ec37..9f040957 100644
--- a/app/Controller/TaskExternalLink.php
+++ b/app/Controller/TaskExternalLink.php
@@ -2,6 +2,7 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\PageNotFoundException;
 use Kanboard\Core\ExternalLink\ExternalLinkProviderNotFound;
 
 /**
@@ -10,12 +11,16 @@ use Kanboard\Core\ExternalLink\ExternalLinkProviderNotFound;
  * @package  controller
  * @author   Frederic Guillot
  */
-class TaskExternalLink extends Base
+class TaskExternalLink extends BaseController
 {
     /**
      * First creation form
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws PageNotFoundException
+     * @throws \Kanboard\Core\Controller\AccessForbiddenException
      */
     public function find(array $values = array(), array $errors = array())
     {
@@ -36,11 +41,10 @@ class TaskExternalLink extends Base
      */
     public function create()
     {
-        try {
-
-            $task = $this->getTask();
-            $values = $this->request->getValues();
+        $task = $this->getTask();
+        $values = $this->request->getValues();
 
+        try {
             $provider = $this->externalLinkManager->setUserInput($values)->find();
             $link = $provider->getLink();
 
@@ -77,13 +81,18 @@ class TaskExternalLink extends Base
             return $this->response->redirect($this->helper->url->to('task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id'])), true);
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     /**
      * Edit form
      *
      * @access public
+     * @param  array $values
+     * @param  array $errors
+     * @throws ExternalLinkProviderNotFound
+     * @throws PageNotFoundException
+     * @throws \Kanboard\Core\Controller\AccessForbiddenException
      */
     public function edit(array $values = array(), array $errors = array())
     {
@@ -95,7 +104,7 @@ class TaskExternalLink extends Base
         }
 
         if (empty($values)) {
-            return $this->notfound();
+            throw new PageNotFoundException();
         }
 
         $provider = $this->externalLinkManager->getProvider($values['link_type']);
@@ -124,7 +133,7 @@ class TaskExternalLink extends Base
             return $this->response->redirect($this->helper->url->to('task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id'])), true);
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     /**
@@ -139,7 +148,7 @@ class TaskExternalLink extends Base
         $link = $this->taskExternalLink->getById($link_id);
 
         if (empty($link)) {
-            return $this->notfound();
+            throw new PageNotFoundException();
         }
 
         $this->response->html($this->template->render('task_external_link/remove', array(
diff --git a/app/Controller/TaskFile.php b/app/Controller/TaskFile.php
index 2b0152a7..0fcd2d69 100644
--- a/app/Controller/TaskFile.php
+++ b/app/Controller/TaskFile.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class TaskFile extends Base
+class TaskFile extends BaseController
 {
     /**
      * Screenshot
@@ -24,7 +24,7 @@ class TaskFile extends Base
             return $this->response->redirect($this->helper->url->to('task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id'])), true);
         }
 
-        $this->response->html($this->template->render('task_file/screenshot', array(
+        return $this->response->html($this->template->render('task_file/screenshot', array(
             'task' => $task,
         )));
     }
diff --git a/app/Controller/TaskHelper.php b/app/Controller/TaskHelper.php
index 6835ab2b..2f14c0eb 100644
--- a/app/Controller/TaskHelper.php
+++ b/app/Controller/TaskHelper.php
@@ -14,7 +14,7 @@ use Kanboard\Formatter\TaskAutoCompleteFormatter;
  * @package  controller
  * @author   Frederic Guillot
  */
-class TaskHelper extends Base
+class TaskHelper extends BaseController
 {
     /**
      * Task auto-completion (Ajax)
diff --git a/app/Controller/TaskImport.php b/app/Controller/TaskImport.php
index 460c608c..5dbf8678 100644
--- a/app/Controller/TaskImport.php
+++ b/app/Controller/TaskImport.php
@@ -10,11 +10,14 @@ use Kanboard\Core\Csv;
  * @package  controller
  * @author   Frederic Guillot
  */
-class TaskImport extends Base
+class TaskImport extends BaseController
 {
     /**
      * Upload the file and ask settings
      *
+     * @param array $values
+     * @param array $errors
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function step1(array $values = array(), array $errors = array())
     {
@@ -66,7 +69,7 @@ class TaskImport extends Base
      */
     public function template()
     {
-        $this->response->forceDownload('tasks.csv');
+        $this->response->withDownload('tasks.csv');
         $this->response->csv(array($this->taskImport->getColumnMapping()));
     }
 }
diff --git a/app/Controller/TaskInternalLink.php b/app/Controller/TaskInternalLink.php
index ac5e04b7..6ff20252 100644
--- a/app/Controller/TaskInternalLink.php
+++ b/app/Controller/TaskInternalLink.php
@@ -2,6 +2,8 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\PageNotFoundException;
+
 /**
  * TaskInternalLink Controller
  *
@@ -9,20 +11,21 @@ namespace Kanboard\Controller;
  * @author   Olivier Maridat
  * @author   Frederic Guillot
  */
-class TaskInternalLink extends Base
+class TaskInternalLink extends BaseController
 {
     /**
      * Get the current link
      *
      * @access private
      * @return array
+     * @throws PageNotFoundException
      */
     private function getTaskLink()
     {
         $link = $this->taskLink->getById($this->request->getIntegerParam('link_id'));
 
         if (empty($link)) {
-            return $this->notfound();
+            throw new PageNotFoundException();
         }
 
         return $link;
@@ -32,6 +35,10 @@ class TaskInternalLink extends Base
      * Creation form
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws PageNotFoundException
+     * @throws \Kanboard\Core\Controller\AccessForbiddenException
      */
     public function create(array $values = array(), array $errors = array())
     {
@@ -67,13 +74,17 @@ class TaskInternalLink extends Base
             $this->flash->failure(t('Unable to create your link.'));
         }
 
-        $this->create($values, $errors);
+        return $this->create($values, $errors);
     }
 
     /**
      * Edit form
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws PageNotFoundException
+     * @throws \Kanboard\Core\Controller\AccessForbiddenException
      */
     public function edit(array $values = array(), array $errors = array())
     {
@@ -116,7 +127,7 @@ class TaskInternalLink extends Base
             $this->flash->failure(t('Unable to update your link.'));
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 
     /**
diff --git a/app/Controller/TaskPopover.php b/app/Controller/TaskPopover.php
index 422a99c7..0e47cffe 100644
--- a/app/Controller/TaskPopover.php
+++ b/app/Controller/TaskPopover.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class TaskPopover extends Base
+class TaskPopover extends BaseController
 {
     /**
      * Change a task assignee directly from the board
diff --git a/app/Controller/TaskRecurrence.php b/app/Controller/TaskRecurrence.php
index 569ef8d9..72dce3a5 100644
--- a/app/Controller/TaskRecurrence.php
+++ b/app/Controller/TaskRecurrence.php
@@ -8,12 +8,16 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class TaskRecurrence extends Base
+class TaskRecurrence extends BaseController
 {
     /**
      * Edit recurrence form
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws \Kanboard\Core\Controller\AccessForbiddenException
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function edit(array $values = array(), array $errors = array())
     {
@@ -53,9 +57,9 @@ class TaskRecurrence extends Base
                 $this->flash->failure(t('Unable to update your task.'));
             }
 
-            $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $task['project_id'], 'task_id' => $task['id'])), true);
+            return $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $task['project_id'], 'task_id' => $task['id'])), true);
         }
 
-        $this->edit($values, $errors);
+        return $this->edit($values, $errors);
     }
 }
diff --git a/app/Controller/Taskcreation.php b/app/Controller/Taskcreation.php
index 1c9e0d82..af7d0c80 100644
--- a/app/Controller/Taskcreation.php
+++ b/app/Controller/Taskcreation.php
@@ -8,12 +8,15 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Taskcreation extends Base
+class Taskcreation extends BaseController
 {
     /**
      * Display a form to create a new task
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function create(array $values = array(), array $errors = array())
     {
@@ -63,7 +66,7 @@ class Taskcreation extends Base
         }
 
         $this->flash->failure(t('Unable to create your task.'));
-        $this->create($values, $errors);
+        return $this->create($values, $errors);
     }
 
     private function afterSave(array $project, array &$values)
@@ -79,6 +82,6 @@ class Taskcreation extends Base
             ));
         }
 
-        $this->response->redirect($this->helper->url->to('board', 'show', array('project_id' => $project['id'])), true);
+        return $this->response->redirect($this->helper->url->to('board', 'show', array('project_id' => $project['id'])), true);
     }
 }
diff --git a/app/Controller/Taskduplication.php b/app/Controller/Taskduplication.php
index 8fca930d..ff60228e 100644
--- a/app/Controller/Taskduplication.php
+++ b/app/Controller/Taskduplication.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Taskduplication extends Base
+class Taskduplication extends BaseController
 {
     /**
      * Duplicate a task
@@ -25,14 +25,14 @@ class Taskduplication extends Base
 
             if ($task_id > 0) {
                 $this->flash->success(t('Task created successfully.'));
-                $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $task['project_id'], 'task_id' => $task_id)));
+                return $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $task['project_id'], 'task_id' => $task_id)));
             } else {
                 $this->flash->failure(t('Unable to create this task.'));
-                $this->response->redirect($this->helper->url->to('taskduplication', 'duplicate', array('project_id' => $task['project_id'], 'task_id' => $task['id'])), true);
+                return $this->response->redirect($this->helper->url->to('taskduplication', 'duplicate', array('project_id' => $task['project_id'], 'task_id' => $task['id'])), true);
             }
         }
 
-        $this->response->html($this->template->render('task_duplication/duplicate', array(
+        return $this->response->html($this->template->render('task_duplication/duplicate', array(
             'task' => $task,
         )));
     }
@@ -57,13 +57,13 @@ class Taskduplication extends Base
                                                                 $values['category_id'],
                                                                 $values['owner_id'])) {
                 $this->flash->success(t('Task updated successfully.'));
-                $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $values['project_id'], 'task_id' => $task['id'])));
+                return $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $values['project_id'], 'task_id' => $task['id'])));
             }
 
             $this->flash->failure(t('Unable to update your task.'));
         }
 
-        $this->chooseDestination($task, 'task_duplication/move');
+        return $this->chooseDestination($task, 'task_duplication/move');
     }
 
     /**
@@ -87,14 +87,14 @@ class Taskduplication extends Base
 
                 if ($task_id > 0) {
                     $this->flash->success(t('Task created successfully.'));
-                    $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $values['project_id'], 'task_id' => $task_id)));
+                    return $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $values['project_id'], 'task_id' => $task_id)));
                 }
             }
 
             $this->flash->failure(t('Unable to create your task.'));
         }
 
-        $this->chooseDestination($task, 'task_duplication/copy');
+        return $this->chooseDestination($task, 'task_duplication/copy');
     }
 
     /**
diff --git a/app/Controller/Taskmodification.php b/app/Controller/Taskmodification.php
index 6b945f37..e8eafe20 100644
--- a/app/Controller/Taskmodification.php
+++ b/app/Controller/Taskmodification.php
@@ -10,7 +10,7 @@ use Kanboard\Core\DateParser;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Taskmodification extends Base
+class Taskmodification extends BaseController
 {
     /**
      * Set automatically the start date
@@ -28,6 +28,10 @@ class Taskmodification extends Base
      * Edit description form
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws \Kanboard\Core\Controller\AccessForbiddenException
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function description(array $values = array(), array $errors = array())
     {
@@ -66,13 +70,17 @@ class Taskmodification extends Base
             return $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $task['project_id'], 'task_id' => $task['id'])), true);
         }
 
-        $this->description($values, $errors);
+        return $this->description($values, $errors);
     }
 
     /**
      * Display a form to edit a task
      *
      * @access public
+     * @param array $values
+     * @param array $errors
+     * @throws \Kanboard\Core\Controller\AccessForbiddenException
+     * @throws \Kanboard\Core\Controller\PageNotFoundException
      */
     public function edit(array $values = array(), array $errors = array())
     {
@@ -113,7 +121,7 @@ class Taskmodification extends Base
 
         if ($valid && $this->taskModification->update($values)) {
             $this->flash->success(t('Task updated successfully.'));
-            return $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $task['project_id'], 'task_id' => $task['id'])), true);
+            $this->response->redirect($this->helper->url->to('task', 'show', array('project_id' => $task['project_id'], 'task_id' => $task['id'])), true);
         } else {
             $this->flash->failure(t('Unable to update your task.'));
             $this->edit($values, $errors);
diff --git a/app/Controller/Taskstatus.php b/app/Controller/Taskstatus.php
index a67459c9..eeaf8513 100644
--- a/app/Controller/Taskstatus.php
+++ b/app/Controller/Taskstatus.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Taskstatus extends Base
+class Taskstatus extends BaseController
 {
     /**
      * Close a task
@@ -55,7 +55,7 @@ class Taskstatus extends Base
             return $this->response->redirect($this->helper->url->to('task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id'])), true);
         }
 
-        $this->response->html($this->template->render($template, array(
+        return $this->response->html($this->template->render($template, array(
             'task' => $task,
         )));
     }
diff --git a/app/Controller/Twofactor.php b/app/Controller/Twofactor.php
index 10292261..2eb61594 100644
--- a/app/Controller/Twofactor.php
+++ b/app/Controller/Twofactor.php
@@ -2,6 +2,8 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\AccessForbiddenException;
+
 /**
  * Two Factor Auth controller
  *
@@ -14,11 +16,13 @@ class Twofactor extends User
      * Only the current user can access to 2FA settings
      *
      * @access private
+     * @param  array $user
+     * @throws AccessForbiddenException
      */
     private function checkCurrentUser(array $user)
     {
         if ($user['id'] != $this->userSession->getId()) {
-            $this->forbidden();
+            throw new AccessForbiddenException();
         }
     }
 
@@ -145,7 +149,7 @@ class Twofactor extends User
         if ($provider->authenticate()) {
             $this->userSession->validatePostAuthentication();
             $this->flash->success(t('The two factor authentication code is valid.'));
-            $this->response->redirect($this->helper->url->to('app', 'index'));
+            $this->response->redirect($this->helper->url->to('DashboardController', 'show'));
         } else {
             $this->flash->failure(t('The two factor authentication code is not valid.'));
             $this->response->redirect($this->helper->url->to('twofactor', 'code'));
@@ -188,10 +192,10 @@ class Twofactor extends User
                 'twofactor_secret' => '',
             ));
 
-            $this->response->redirect($this->helper->url->to('user', 'show', array('user_id' => $user['id'])));
+            return $this->response->redirect($this->helper->url->to('user', 'show', array('user_id' => $user['id'])));
         }
 
-        $this->response->html($this->helper->layout->user('twofactor/disable', array(
+        return $this->response->html($this->helper->layout->user('twofactor/disable', array(
             'user' => $user,
         )));
     }
diff --git a/app/Controller/User.php b/app/Controller/User.php
index 4caed1e6..11a7a01e 100644
--- a/app/Controller/User.php
+++ b/app/Controller/User.php
@@ -2,6 +2,7 @@
 
 namespace Kanboard\Controller;
 
+use Kanboard\Core\Controller\PageNotFoundException;
 use Kanboard\Notification\Mail as MailNotification;
 use Kanboard\Model\Project as ProjectModel;
 use Kanboard\Core\Security\Role;
@@ -12,7 +13,7 @@ use Kanboard\Core\Security\Role;
  * @package  controller
  * @author   Frederic Guillot
  */
-class User extends Base
+class User extends BaseController
 {
     /**
      * List all users
@@ -28,39 +29,38 @@ class User extends Base
                 ->setQuery($this->user->getQuery())
                 ->calculate();
 
-        $this->response->html(
-            $this->helper->layout->app('user/index', array(
-                'title' => t('Users').' ('.$paginator->getTotal().')',
-                'paginator' => $paginator,
-            )
-        ));
+        $this->response->html($this->helper->layout->app('user/index', array(
+            'title' => t('Users').' ('.$paginator->getTotal().')',
+            'paginator' => $paginator,
+        )));
     }
 
     /**
      * Public user profile
      *
      * @access public
+     * @throws PageNotFoundException
      */
     public function profile()
     {
         $user = $this->user->getById($this->request->getIntegerParam('user_id'));
 
         if (empty($user)) {
-            $this->notfound();
+            throw new PageNotFoundException();
         }
 
-        $this->response->html(
-            $this->helper->layout->app('user/profile', array(
-                'title' => $user['name'] ?: $user['username'],
-                'user' => $user,
-            )
-        ));
+        $this->response->html($this->helper->layout->app('user/profile', array(
+            'title' => $user['name'] ?: $user['username'],
+            'user' => $user,
+        )));
     }
 
     /**
      * Display a form to create a new user
      *
      * @access public
+     * @param array $values
+     * @param array $errors
      */
     public function create(array $values = array(), array $errors = array())
     {
@@ -101,14 +101,14 @@ class User extends Base
                 }
 
                 $this->flash->success(t('User created successfully.'));
-                $this->response->redirect($this->helper->url->to('user', 'show', array('user_id' => $user_id)));
+                return $this->response->redirect($this->helper->url->to('user', 'show', array('user_id' => $user_id)));
             } else {
                 $this->flash->failure(t('Unable to create your user.'));
                 $values['project_id'] = $project_id;
             }
         }
 
-        $this->create($values, $errors);
+        return $this->create($values, $errors);
     }
 
     /**
@@ -217,10 +217,10 @@ class User extends Base
             $values = $this->request->getValues();
             $this->userNotification->saveSettings($user['id'], $values);
             $this->flash->success(t('User updated successfully.'));
-            $this->response->redirect($this->helper->url->to('user', 'notifications', array('user_id' => $user['id'])));
+            return $this->response->redirect($this->helper->url->to('user', 'notifications', array('user_id' => $user['id'])));
         }
 
-        $this->response->html($this->helper->layout->user('user/notifications', array(
+        return $this->response->html($this->helper->layout->user('user/notifications', array(
             'projects' => $this->projectUserRole->getProjectsByUser($user['id'], array(ProjectModel::ACTIVE)),
             'notifications' => $this->userNotification->readSettings($user['id']),
             'types' => $this->userNotificationType->getTypes(),
@@ -284,10 +284,10 @@ class User extends Base
                 $this->flash->failure(t('Unable to update this user.'));
             }
 
-            $this->response->redirect($this->helper->url->to('user', 'share', array('user_id' => $user['id'])));
+            return $this->response->redirect($this->helper->url->to('user', 'share', array('user_id' => $user['id'])));
         }
 
-        $this->response->html($this->helper->layout->user('user/share', array(
+        return $this->response->html($this->helper->layout->user('user/share', array(
             'user' => $user,
             'title' => t('Public access'),
         )));
@@ -315,11 +315,11 @@ class User extends Base
                     $this->flash->failure(t('Unable to change the password.'));
                 }
 
-                $this->response->redirect($this->helper->url->to('user', 'show', array('user_id' => $user['id'])));
+                return $this->response->redirect($this->helper->url->to('user', 'show', array('user_id' => $user['id'])));
             }
         }
 
-        $this->response->html($this->helper->layout->user('user/password', array(
+        return $this->response->html($this->helper->layout->user('user/password', array(
             'values' => $values,
             'errors' => $errors,
             'user' => $user,
@@ -357,11 +357,11 @@ class User extends Base
                     $this->flash->failure(t('Unable to update your user.'));
                 }
 
-                $this->response->redirect($this->helper->url->to('user', 'show', array('user_id' => $user['id'])));
+                return $this->response->redirect($this->helper->url->to('user', 'show', array('user_id' => $user['id'])));
             }
         }
 
-        $this->response->html($this->helper->layout->user('user/edit', array(
+        return $this->response->html($this->helper->layout->user('user/edit', array(
             'values' => $values,
             'errors' => $errors,
             'user' => $user,
@@ -395,11 +395,11 @@ class User extends Base
                     $this->flash->failure(t('Unable to update your user.'));
                 }
 
-                $this->response->redirect($this->helper->url->to('user', 'authentication', array('user_id' => $user['id'])));
+                return $this->response->redirect($this->helper->url->to('user', 'authentication', array('user_id' => $user['id'])));
             }
         }
 
-        $this->response->html($this->helper->layout->user('user/authentication', array(
+        return $this->response->html($this->helper->layout->user('user/authentication', array(
             'values' => $values,
             'errors' => $errors,
             'user' => $user,
diff --git a/app/Controller/UserHelper.php b/app/Controller/UserHelper.php
index 47bbe554..d5e0920d 100644
--- a/app/Controller/UserHelper.php
+++ b/app/Controller/UserHelper.php
@@ -12,7 +12,7 @@ use Kanboard\Model\User as UserModel;
  * @package  controller
  * @author   Frederic Guillot
  */
-class UserHelper extends Base
+class UserHelper extends BaseController
 {
     /**
      * User auto-completion (Ajax)
@@ -39,4 +39,14 @@ class UserHelper extends Base
         $users = $this->projectPermission->findUsernames($project_id, $query);
         $this->response->json($users);
     }
+
+    /**
+     * Check if the user is connected
+     *
+     * @access public
+     */
+    public function status()
+    {
+        $this->response->text('OK');
+    }
 }
diff --git a/app/Controller/UserImport.php b/app/Controller/UserImport.php
index debd69e5..b99e56a0 100644
--- a/app/Controller/UserImport.php
+++ b/app/Controller/UserImport.php
@@ -10,7 +10,7 @@ use Kanboard\Core\Csv;
  * @package  controller
  * @author   Frederic Guillot
  */
-class UserImport extends Base
+class UserImport extends BaseController
 {
     /**
      * Upload the file and ask settings
@@ -60,7 +60,7 @@ class UserImport extends Base
      */
     public function template()
     {
-        $this->response->forceDownload('users.csv');
+        $this->response->withDownload('users.csv');
         $this->response->csv(array($this->userImport->getColumnMapping()));
     }
 }
diff --git a/app/Controller/UserStatus.php b/app/Controller/UserStatus.php
index b8ee5c91..6f93e953 100644
--- a/app/Controller/UserStatus.php
+++ b/app/Controller/UserStatus.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class UserStatus extends Base
+class UserStatus extends BaseController
 {
     /**
      * Confirm remove a user
diff --git a/app/Controller/WebNotification.php b/app/Controller/WebNotification.php
index dca5cb46..a62da0e3 100644
--- a/app/Controller/WebNotification.php
+++ b/app/Controller/WebNotification.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class WebNotification extends Base
+class WebNotification extends BaseController
 {
     /**
      * Mark all notifications as read
@@ -20,7 +20,7 @@ class WebNotification extends Base
         $user_id = $this->getUserId();
 
         $this->userUnreadNotification->markAllAsRead($user_id);
-        $this->response->redirect($this->helper->url->to('app', 'notifications', array('user_id' => $user_id)));
+        $this->response->redirect($this->helper->url->to('DashboardController', 'notifications', array('user_id' => $user_id)));
     }
 
     /**
@@ -34,7 +34,7 @@ class WebNotification extends Base
         $notification_id = $this->request->getIntegerParam('notification_id');
 
         $this->userUnreadNotification->markAsRead($user_id, $notification_id);
-        $this->response->redirect($this->helper->url->to('app', 'notifications', array('user_id' => $user_id)));
+        $this->response->redirect($this->helper->url->to('DashboardController', 'notifications', array('user_id' => $user_id)));
     }
 
     private function getUserId()
diff --git a/app/Controller/Webhook.php b/app/Controller/Webhook.php
index 0eafe3e5..6e172aeb 100644
--- a/app/Controller/Webhook.php
+++ b/app/Controller/Webhook.php
@@ -8,7 +8,7 @@ namespace Kanboard\Controller;
  * @package  controller
  * @author   Frederic Guillot
  */
-class Webhook extends Base
+class Webhook extends BaseController
 {
     /**
      * Webhook to create a task
@@ -34,9 +34,9 @@ class Webhook extends Base
         list($valid, ) = $this->taskValidator->validateCreation($values);
 
         if ($valid && $this->taskCreation->create($values)) {
-            $this->response->text('OK');
+            return $this->response->text('OK');
         }
 
-        $this->response->text('FAILED');
+        return $this->response->text('FAILED');
     }
 }