invoiceninja/app/Http/Requests/ClientPortal/Documents/ShowDocumentRequest.php

<?php

/**
 * Invoice Ninja (https://invoiceninja.com).
 *
 * @link https://github.com/invoiceninja/invoiceninja source repository
 *
 * @copyright Copyright (c) 2021. Invoice Ninja LLC (https://invoiceninja.com)
 *
 * @license https://opensource.org/licenses/AAL
 */

namespace App\Http\Requests\ClientPortal\Documents;

use App\Utils\Traits\MakesHash;

use Illuminate\Foundation\Http\FormRequest;

class ShowDocumentRequest extends FormRequest
{
    use MakesHash;

    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return auth()->user('contact')->client->id == $this->document->documentable_id
            || $this->document->documentable->client_id == auth()->user('contact')->client->id;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            //
        ];
    }
}