BookStack/app/Http/Controller.php
Dan Brown 45ce7a7126
URL Handling: Removed referrer-based redirect handling
Swapped back handling to instead be pre-determined instead of being
based upon session/referrer which would cause inconsistent results when
referrer data was not available (redirect to app-loaded images/files).

To support, this adds a mechansism to provide a URL through request
data.

Also cleaned up some imports in code while making changes.
Closes #4656.
2023-12-10 12:37:21 +00:00

187 lines
5.0 KiB
PHP

<?php
namespace BookStack\Http;
use BookStack\Activity\Models\Loggable;
use BookStack\App\Model;
use BookStack\Exceptions\NotifyException;
use BookStack\Facades\Activity;
use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\RedirectResponse;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller as BaseController;
abstract class Controller extends BaseController
{
use DispatchesJobs;
use ValidatesRequests;
/**
* Check if the current user is signed in.
*/
protected function isSignedIn(): bool
{
return auth()->check();
}
/**
* Stops the application and shows a permission error if
* the application is in demo mode.
*/
protected function preventAccessInDemoMode()
{
if (config('app.env') === 'demo') {
$this->showPermissionError();
}
}
/**
* Adds the page title into the view.
*/
public function setPageTitle(string $title)
{
view()->share('pageTitle', $title);
}
/**
* On a permission error redirect to home and display.
* the error as a notification.
*
* @return never
*/
protected function showPermissionError()
{
$message = request()->wantsJson() ? trans('errors.permissionJson') : trans('errors.permission');
throw new NotifyException($message, '/', 403);
}
/**
* Checks that the current user has the given permission otherwise throw an exception.
*/
protected function checkPermission(string $permission): void
{
if (!user() || !user()->can($permission)) {
$this->showPermissionError();
}
}
/**
* Prevent access for guest users beyond this point.
*/
protected function preventGuestAccess(): void
{
if (user()->isGuest()) {
$this->showPermissionError();
}
}
/**
* Check the current user's permissions against an ownable item otherwise throw an exception.
*/
protected function checkOwnablePermission(string $permission, Model $ownable): void
{
if (!userCan($permission, $ownable)) {
$this->showPermissionError();
}
}
/**
* Check if a user has a permission or bypass the permission
* check if the given callback resolves true.
*/
protected function checkPermissionOr(string $permission, callable $callback): void
{
if ($callback() !== true) {
$this->checkPermission($permission);
}
}
/**
* Check if the current user has a permission or bypass if the provided user
* id matches the current user.
*/
protected function checkPermissionOrCurrentUser(string $permission, int $userId): void
{
$this->checkPermissionOr($permission, function () use ($userId) {
return $userId === user()->id;
});
}
/**
* Send back a json error message.
*/
protected function jsonError(string $messageText = '', int $statusCode = 500): JsonResponse
{
return response()->json(['message' => $messageText, 'status' => 'error'], $statusCode);
}
/**
* Create and return a new download response factory using the current request.
*/
protected function download(): DownloadResponseFactory
{
return new DownloadResponseFactory(request());
}
/**
* Show a positive, successful notification to the user on next view load.
*/
protected function showSuccessNotification(string $message): void
{
session()->flash('success', $message);
}
/**
* Show a warning notification to the user on next view load.
*/
protected function showWarningNotification(string $message): void
{
session()->flash('warning', $message);
}
/**
* Show an error notification to the user on next view load.
*/
protected function showErrorNotification(string $message): void
{
session()->flash('error', $message);
}
/**
* Log an activity in the system.
*
* @param string|Loggable $detail
*/
protected function logActivity(string $type, $detail = ''): void
{
Activity::add($type, $detail);
}
/**
* Get the validation rules for image files.
*/
protected function getImageValidationRules(): array
{
return ['image_extension', 'mimes:jpeg,png,gif,webp', 'max:' . (config('app.upload_limit') * 1000)];
}
/**
* Redirect to the URL provided in the request as a '_return' parameter.
* Will check that the parameter leads to a URL under the root path of the system.
*/
protected function redirectToRequest(Request $request): RedirectResponse
{
$basePath = url('/');
$returnUrl = $request->input('_return') ?? $basePath;
if (!str_starts_with($returnUrl, $basePath)) {
return redirect($basePath);
}
return redirect($returnUrl);
}
}