77 lines
2.6 KiB
PHP
77 lines
2.6 KiB
PHP
<?php
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namespace Pterodactyl\Http\Controllers\Api\Client\Servers;
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use Cake\Chronos\Chronos;
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use Lcobucci\JWT\Builder;
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use Illuminate\Http\Request;
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use Lcobucci\JWT\Signer\Key;
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use Illuminate\Http\Response;
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use Pterodactyl\Models\Server;
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use Illuminate\Http\JsonResponse;
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use Lcobucci\JWT\Signer\Hmac\Sha256;
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use Illuminate\Contracts\Cache\Repository;
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use Symfony\Component\HttpKernel\Exception\HttpException;
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use Pterodactyl\Http\Controllers\Api\Client\ClientApiController;
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class WebsocketController extends ClientApiController
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{
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/**
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* @var \Illuminate\Contracts\Cache\Repository
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*/
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private $cache;
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/**
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* WebsocketController constructor.
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*
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* @param \Illuminate\Contracts\Cache\Repository $cache
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*/
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public function __construct(Repository $cache)
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{
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parent::__construct();
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$this->cache = $cache;
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}
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/**
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* Generates a one-time token that is sent along in every websocket call to the Daemon.
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* This is a signed JWT that the Daemon then uses the verify the user's identity, and
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* allows us to continually renew this token and avoid users mainitaining sessions wrongly,
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* as well as ensure that user's only perform actions they're allowed to.
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*
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* @param \Illuminate\Http\Request $request
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* @param \Pterodactyl\Models\Server $server
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* @return \Illuminate\Http\JsonResponse
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*/
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public function __invoke(Request $request, Server $server)
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{
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if (! $request->user()->can('connect-to-ws', $server)) {
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throw new HttpException(
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Response::HTTP_FORBIDDEN, 'You do not have permission to connect to this server\'s websocket.'
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);
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}
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$now = Chronos::now();
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$signer = new Sha256;
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$token = (new Builder)->issuedBy(config('app.url'))
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->permittedFor($server->node->getConnectionAddress())
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->identifiedBy(hash('sha256', $request->user()->id . $server->uuid), true)
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->issuedAt($now->getTimestamp())
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->canOnlyBeUsedAfter($now->getTimestamp())
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->expiresAt($now->addMinutes(15)->getTimestamp())
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->withClaim('user_id', $request->user()->id)
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->withClaim('server_uuid', $server->uuid)
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->getToken($signer, new Key($server->node->daemonSecret));
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$socket = str_replace(['https://', 'http://'], ['wss://', 'ws://'], $server->node->getConnectionAddress());
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return JsonResponse::create([
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'data' => [
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'token' => $token->__toString(),
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'socket' => $socket . sprintf('/api/servers/%s/ws', $server->uuid),
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],
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]);
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}
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}
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