Filament•4mo ago

How to use a custom policy for a custom resource page or disable authorization entirely?

Is it possible to use a custom policy for a custom resource page? Lets say I have a page to download files from an existing resource. I want to use a custom policy download for this resource. How can I manage access to the page? It seems like the model policies take precedence over the canAccess()-method of the page. So the "normal" model policies deny access to the custom resource download page, because I can't define the download policy for this resource page.

Solution:

Why is this even a Resource when you only have one custom page? Just create a single page

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9 Replies

Dennis Koch•4mo ago

So the "normal" model policies deny access to the custom resource download page, because I can't define the download policy for this resource page.

If you user cannot viewAny then the resource is not registering navigation. How does you policy restrict the access? https://filamentphp.com/docs/3.x/panels/resources/getting-started#authorization

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Dennis Koch•4mo ago

I don't think any other policies should apply to custom pages by default

NuekratoOP•4mo ago

I use the same resource in my "main" app panel that uses the default model policies. I setup an additional "guest" panel for unauthenticated users that can download files from a resource using some kind of magic link. For this I want to check if the URL contains a valid token instead of checking for any model policies (or use a custom policy for that check). For my custom page I don't need any navigation, breadcrumbs or whatsoever. From my Resource class:

    public static function getPages(): array
    {
        return [
            'download' => Pages\DownloadProject::route('/download/{token}'),
        ];
    }

    public static function getPages(): array
    {
        return [
            'download' => Pages\DownloadProject::route('/download/{token}'),
        ];
    }

I encrounter a second issue with the getPages()-method if I omit the index page for the resource. Somehow the index page seems to be required?

[2024-08-14 12:27:14] local.ERROR: Route [filament.guest.resources.projects.index] not defined. {"view":{"view":"/var/www/html/vendor/filament/filament/resources/views/components/page/index.blade.php","data":[]},"exception":"[object] (Spatie\\LaravelIgnition\\Exceptions\\ViewException(code: 0): Route [filament.guest.resources.projects.index] not defined. at /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/UrlGenerator.php:477)
[stacktrace]
#0 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php(811): Illuminate\\Routing\\UrlGenerator->route()
#1 /var/www/html/vendor/filament/filament/src/Resources/Resource.php(701): route()
#2 /var/www/html/vendor/filament/filament/src/Resources/Pages/Page.php(123): Filament\\Resources\\Resource::getUrl()
#3 /var/www/html/vendor/filament/filament/resources/views/components/page/index.blade.php(36): Filament\\Resources\\Pages\\Page->getBreadcrumbs()

[2024-08-14 12:27:14] local.ERROR: Route [filament.guest.resources.projects.index] not defined. {"view":{"view":"/var/www/html/vendor/filament/filament/resources/views/components/page/index.blade.php","data":[]},"exception":"[object] (Spatie\\LaravelIgnition\\Exceptions\\ViewException(code: 0): Route [filament.guest.resources.projects.index] not defined. at /var/www/html/vendor/laravel/framework/src/Illuminate/Routing/UrlGenerator.php:477)
[stacktrace]
#0 /var/www/html/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php(811): Illuminate\\Routing\\UrlGenerator->route()
#1 /var/www/html/vendor/filament/filament/src/Resources/Resource.php(701): route()
#2 /var/www/html/vendor/filament/filament/src/Resources/Pages/Page.php(123): Filament\\Resources\\Resource::getUrl()
#3 /var/www/html/vendor/filament/filament/resources/views/components/page/index.blade.php(36): Filament\\Resources\\Pages\\Page->getBreadcrumbs()

Solution

Dennis Koch•4mo ago

Why is this even a Resource when you only have one custom page? Just create a single page

NuekratoOP•4mo ago

I created a custom page now. I was thinking about a resource page because I resolve a resource (eloquent model) from the magic link in the end and want to show a table with related data to that model. So I thought using a resource page for this would make sense. But it seems like resource pages do not fit my use case

Dennis Koch•4mo ago

Resources are wrappers for classic CRUD: Create, Edit, List, Show It doesn't make sense when it's a single page.

NuekratoOP•4mo ago

OK. So I can use a custom (non resource page) like described here: https://filamentphp.com/docs/3.x/panels/pages But still use Eloquent Models and Relationships within Form or Table?

Pages - Panel Builder - Filament

Dennis Koch•4mo ago

Sure.

NuekratoOP•4mo ago

Alright thank you very much for your help!

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How to use a custom policy for a custom resource page or disable authorization entirely?