3 namespace BookStack\Http\Controllers;
5 use BookStack\Facades\Activity;
6 use BookStack\Interfaces\Loggable;
7 use BookStack\HasCreatorAndUpdater;
10 use Illuminate\Foundation\Bus\DispatchesJobs;
11 use Illuminate\Foundation\Validation\ValidatesRequests;
12 use Illuminate\Http\Exceptions\HttpResponseException;
13 use Illuminate\Http\JsonResponse;
14 use Illuminate\Http\Response;
15 use Illuminate\Routing\Controller as BaseController;
17 abstract class Controller extends BaseController
19 use DispatchesJobs, ValidatesRequests;
22 * Check if the current user is signed in.
24 protected function isSignedIn(): bool
26 return auth()->check();
30 * Stops the application and shows a permission error if
31 * the application is in demo mode.
33 protected function preventAccessInDemoMode()
35 if (config('app.env') === 'demo') {
36 $this->showPermissionError();
41 * Adds the page title into the view.
43 public function setPageTitle(string $title)
45 view()->share('pageTitle', $title);
49 * On a permission error redirect to home and display.
50 * the error as a notification.
52 protected function showPermissionError()
54 if (request()->wantsJson()) {
55 $response = response()->json(['error' => trans('errors.permissionJson')], 403);
57 $response = redirect('/');
58 $this->showErrorNotification(trans('errors.permission'));
61 throw new HttpResponseException($response);
65 * Checks that the current user has the given permission otherwise throw an exception.
67 protected function checkPermission(string $permission): void
69 if (!user() || !user()->can($permission)) {
70 $this->showPermissionError();
75 * Check the current user's permissions against an ownable item otherwise throw an exception.
77 protected function checkOwnablePermission(string $permission, Model $ownable): void
79 if (!userCan($permission, $ownable)) {
80 $this->showPermissionError();
85 * Check if a user has a permission or bypass the permission
86 * check if the given callback resolves true.
88 protected function checkPermissionOr(string $permission, callable $callback): void
90 if ($callback() !== true) {
91 $this->checkPermission($permission);
96 * Check if the current user has a permission or bypass if the provided user
97 * id matches the current user.
99 protected function checkPermissionOrCurrentUser(string $permission, int $userId): void
101 $this->checkPermissionOr($permission, function () use ($userId) {
102 return $userId === user()->id;
107 * Send back a json error message.
109 protected function jsonError(string $messageText = "", int $statusCode = 500): JsonResponse
111 return response()->json(['message' => $messageText, 'status' => 'error'], $statusCode);
115 * Create a response that forces a download in the browser.
117 protected function downloadResponse(string $content, string $fileName): Response
119 return response()->make($content, 200, [
120 'Content-Type' => 'application/octet-stream',
121 'Content-Disposition' => 'attachment; filename="' . $fileName . '"'
126 * Create a file download response that provides the file with a content-type
127 * correct for the file, in a way so the browser can show the content in browser.
129 protected function inlineDownloadResponse(string $content, string $fileName): Response
131 $finfo = new finfo(FILEINFO_MIME_TYPE);
132 $mime = $finfo->buffer($content) ?: 'application/octet-stream';
133 return response()->make($content, 200, [
134 'Content-Type' => $mime,
135 'Content-Disposition' => 'inline; filename="' . $fileName . '"'
140 * Show a positive, successful notification to the user on next view load.
142 protected function showSuccessNotification(string $message): void
144 session()->flash('success', $message);
148 * Show a warning notification to the user on next view load.
150 protected function showWarningNotification(string $message): void
152 session()->flash('warning', $message);
156 * Show an error notification to the user on next view load.
158 protected function showErrorNotification(string $message): void
160 session()->flash('error', $message);
164 * Log an activity in the system.
165 * @param string|Loggable
167 protected function logActivity(string $type, $detail = ''): void
169 Activity::add($type, $detail);
173 * Get the validation rules for image files.
175 protected function getImageValidationRules(): string
177 return 'image_extension|mimes:jpeg,png,gif,webp';