<?php
/*
 * Pterodactyl - Panel
 * Copyright (c) 2015 - 2017 Dane Everitt <dane@daneeveritt.com>.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

namespace Pterodactyl\Http\Middleware\Daemon;

use Closure;
use Illuminate\Http\Request;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Pterodactyl\Contracts\Repository\NodeRepositoryInterface;
use Pterodactyl\Exceptions\Repository\RecordNotFoundException;

class DaemonAuthenticate
{
    /**
     * @var \Pterodactyl\Contracts\Repository\NodeRepositoryInterface
     */
    private $repository;

    /**
     * Daemon routes that this middleware should be skipped on.
     *
     * @var array
     */
    protected $except = [
        'daemon.configuration',
    ];

    /**
     * DaemonAuthenticate constructor.
     *
     * @param \Pterodactyl\Contracts\Repository\NodeRepositoryInterface $repository
     */
    public function __construct(NodeRepositoryInterface $repository)
    {
        $this->repository = $repository;
    }

    /**
     * Check if a request from the daemon can be properly attributed back to a single node instance.
     *
     * @param \Illuminate\Http\Request $request
     * @param \Closure                 $next
     * @return mixed
     *
     * @throws \Symfony\Component\HttpKernel\Exception\HttpException
     */
    public function handle(Request $request, Closure $next)
    {
        if (in_array($request->route()->getName(), $this->except)) {
            return $next($request);
        }

        $token = $request->bearerToken();

        if (is_null($token)) {
            throw new HttpException(401, null, null, ['WWW-Authenticate' => 'Bearer']);
        }

        try {
            $node = $this->repository->findFirstWhere([['daemonSecret', '=', $token]]);
        } catch (RecordNotFoundException $exception) {
            throw new HttpException(403);
        }

        $request->attributes->set('node', $node);

        return $next($request);
    }
}
