117 lines
3.1 KiB
PHP
117 lines
3.1 KiB
PHP
<?php
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namespace BookStack\Http\Controllers;
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use BookStack\Ownable;
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use HttpRequestException;
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use Illuminate\Foundation\Bus\DispatchesJobs;
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use Illuminate\Http\Exception\HttpResponseException;
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use Illuminate\Routing\Controller as BaseController;
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use Illuminate\Foundation\Validation\ValidatesRequests;
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use Illuminate\Support\Facades\Auth;
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use Illuminate\Support\Facades\Session;
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use BookStack\User;
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abstract class Controller extends BaseController
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{
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use DispatchesJobs, ValidatesRequests;
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/**
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* @var User static
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*/
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protected $currentUser;
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/**
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* @var bool
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*/
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protected $signedIn;
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/**
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* Controller constructor.
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*/
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public function __construct()
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{
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// Get a user instance for the current user
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$user = auth()->user();
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if (!$user) $user = User::getDefault();
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// Share variables with views
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view()->share('signedIn', auth()->check());
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view()->share('currentUser', $user);
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// Share variables with controllers
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$this->currentUser = $user;
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$this->signedIn = auth()->check();
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}
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/**
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* Stops the application and shows a permission error if
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* the application is in demo mode.
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*/
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protected function preventAccessForDemoUsers()
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{
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if (config('app.env') === 'demo') $this->showPermissionError();
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}
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/**
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* Adds the page title into the view.
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* @param $title
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*/
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public function setPageTitle($title)
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{
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view()->share('pageTitle', $title);
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}
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/**
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* On a permission error redirect to home and display.
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* the error as a notification.
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*/
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protected function showPermissionError()
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{
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Session::flash('error', trans('errors.permission'));
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throw new HttpResponseException(
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redirect('/')
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);
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}
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/**
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* Checks for a permission.
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* @param string $permissionName
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* @return bool|\Illuminate\Http\RedirectResponse
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*/
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protected function checkPermission($permissionName)
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{
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if (!$this->currentUser || !$this->currentUser->can($permissionName)) {
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$this->showPermissionError();
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}
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return true;
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}
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/**
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* Check the current user's permissions against an ownable item.
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* @param $permission
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* @param Ownable $ownable
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* @return bool
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*/
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protected function checkOwnablePermission($permission, Ownable $ownable)
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{
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$permissionBaseName = strtolower($permission) . '-';
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if (userCan($permissionBaseName . 'all')) return true;
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if (userCan($permissionBaseName . 'own') && $ownable->createdBy->id === $this->currentUser->id) return true;
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$this->showPermissionError();
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}
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/**
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* Check if a user has a permission or bypass if the callback is true.
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* @param $permissionName
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* @param $callback
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* @return bool
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*/
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protected function checkPermissionOr($permissionName, $callback)
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{
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$callbackResult = $callback();
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if ($callbackResult === false) $this->checkPermission($permissionName);
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return true;
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}
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}
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