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Current Path : /var/www/html/bookstack/app/Providers/
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Current File : /var/www/html/bookstack/app/Providers/CustomValidationServiceProvider.php

<?php

namespace BookStack\Providers;

use BookStack\Uploads\ImageService;
use Illuminate\Support\Facades\Validator;
use Illuminate\Support\ServiceProvider;

class CustomValidationServiceProvider extends ServiceProvider
{
    /**
     * Register our custom validation rules when the application boots.
     */
    public function boot(): void
    {
        Validator::extend('image_extension', function ($attribute, $value, $parameters, $validator) {
            $extension = strtolower($value->getClientOriginalExtension());

            return ImageService::isExtensionSupported($extension);
        });

        Validator::extend('safe_url', function ($attribute, $value, $parameters, $validator) {
            $cleanLinkName = strtolower(trim($value));
            $isJs = strpos($cleanLinkName, 'javascript:') === 0;
            $isData = strpos($cleanLinkName, 'data:') === 0;

            return !$isJs && !$isData;
        });
    }
}