Pterodactyl-Panel/app/Http/Requests/Admin/AdminFormRequest.php

<?php
/**
 * Pterodactyl - Panel
 * Copyright (c) 2015 - 2017 Dane Everitt <dane@daneeveritt.com>.
 *
 * This software is licensed under the terms of the MIT license.
 * https://opensource.org/licenses/MIT
 */

namespace Pterodactyl\Http\Requests\Admin;

use Illuminate\Foundation\Http\FormRequest;

abstract class AdminFormRequest extends FormRequest
{
    /**
     * The rules to apply to the incoming form request.
     *
     * @return array
     */
    abstract public function rules(): array;

    /**
     * Determine if the user is an admin and has permission to access this
     * form controller in the first place.
     *
     * @return bool
     */
    public function authorize(): bool
    {
        if (is_null($this->user())) {
            return false;
        }

        return (bool) $this->user()->root_admin;
    }

    /**
     * Return only the fields that we are interested in from the request.
     * This will include empty fields as a null value.
     *
     * @param array $only
     * @return array
     */
    public function normalize($only = []): array
    {
        return array_merge(
            $this->only($only),
            $this->intersect(array_keys($this->rules()))
        );
    }
}