Added auto-suggestions to tag names and values

[bookstack] / app / Http / Controllers / Controller.php

diff --git a/app/Http/Controllers/Controller.php b/app/Http/Controllers/Controller.php
index 42192eefb3bc997858759a1959f02a89deea8176..26eeb3002aeebecd9ec74796f428fe9eb2132a5a 100644 (file)
--- a/app/Http/Controllers/Controller.php
+++ b/app/Http/Controllers/Controller.php
@@ -1,12 +1,124 @@
 <?php
 
-namespace Oxbow\Http\Controllers;
+namespace BookStack\Http\Controllers;
 
+use BookStack\Ownable;
+use HttpRequestException;
 use Illuminate\Foundation\Bus\DispatchesJobs;
+use Illuminate\Http\Exception\HttpResponseException;
 use Illuminate\Routing\Controller as BaseController;
 use Illuminate\Foundation\Validation\ValidatesRequests;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\Session;
+use BookStack\User;
 
 abstract class Controller extends BaseController
 {
     use DispatchesJobs, ValidatesRequests;
+
+    /**
+     * @var User static
+     */
+    protected $currentUser;
+    /**
+     * @var bool
+     */
+    protected $signedIn;
+
+    /**
+     * Controller constructor.
+     */
+    public function __construct()
+    {
+        // Get a user instance for the current user
+        $user = auth()->user();
+        if (!$user) $user = User::getDefault();
+
+        // Share variables with views
+        view()->share('signedIn', auth()->check());
+        view()->share('currentUser', $user);
+
+        // Share variables with controllers
+        $this->currentUser = $user;
+        $this->signedIn = auth()->check();
+    }
+
+    /**
+     * Stops the application and shows a permission error if
+     * the application is in demo mode.
+     */
+    protected function preventAccessForDemoUsers()
+    {
+        if (config('app.env') === 'demo') $this->showPermissionError();
+    }
+
+    /**
+     * Adds the page title into the view.
+     * @param $title
+     */
+    public function setPageTitle($title)
+    {
+        view()->share('pageTitle', $title);
+    }
+
+    /**
+     * On a permission error redirect to home and display.
+     * the error as a notification.
+     */
+    protected function showPermissionError()
+    {
+        Session::flash('error', trans('errors.permission'));
+        $response = request()->wantsJson() ? response()->json(['error' => trans('errors.permissionJson')], 403) : redirect('/');
+        throw new HttpResponseException($response);
+    }
+
+    /**
+     * Checks for a permission.
+     * @param string $permissionName
+     * @return bool|\Illuminate\Http\RedirectResponse
+     */
+    protected function checkPermission($permissionName)
+    {
+        if (!$this->currentUser || !$this->currentUser->can($permissionName)) {
+            $this->showPermissionError();
+        }
+        return true;
+    }
+
+    /**
+     * Check the current user's permissions against an ownable item.
+     * @param $permission
+     * @param Ownable $ownable
+     * @return bool
+     */
+    protected function checkOwnablePermission($permission, Ownable $ownable)
+    {
+        if (userCan($permission, $ownable)) return true;
+        return $this->showPermissionError();
+    }
+
+    /**
+     * Check if a user has a permission or bypass if the callback is true.
+     * @param $permissionName
+     * @param $callback
+     * @return bool
+     */
+    protected function checkPermissionOr($permissionName, $callback)
+    {
+        $callbackResult = $callback();
+        if ($callbackResult === false) $this->checkPermission($permissionName);
+        return true;
+    }
+
+    /**
+     * Send back a json error message.
+     * @param string $messageText
+     * @param int $statusCode
+     * @return mixed
+     */
+    protected function jsonError($messageText = "", $statusCode = 500)
+    {
+        return response()->json(['message' => $messageText], $statusCode);
+    }
+
 }