Files
PocketMine-MP/src/network/mcpe/auth/ProcessOpenIdLoginTask.php
2025-09-20 22:40:38 +01:00

99 lines
3.5 KiB
PHP

<?php
/*
*
* ____ _ _ __ __ _ __ __ ____
* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* @author PocketMine Team
* @link http://www.pocketmine.net/
*
*
*/
declare(strict_types=1);
namespace pocketmine\network\mcpe\auth;
use pocketmine\lang\Translatable;
use pocketmine\scheduler\AsyncTask;
use pocketmine\thread\NonThreadSafeValue;
use function base64_decode;
class ProcessOpenIdLoginTask extends AsyncTask{
private const TLS_KEY_ON_COMPLETION = "completion";
public const MOJANG_AUDIENCE = "api://auth-minecraft-services/multiplayer";
/**
* Whether the keychain signatures were validated correctly. This will be set to an error message if any link in the
* keychain is invalid for whatever reason (bad signature, not in nbf-exp window, etc). If this is non-null, the
* keychain might have been tampered with. The player will always be disconnected if this is non-null.
*
* @phpstan-var NonThreadSafeValue<Translatable>|string|null
*/
private NonThreadSafeValue|string|null $error = "Unknown";
/**
* Whether the player is logged into Xbox Live. This is true if any link in the keychain is signed with the Mojang
* root public key.
*/
private bool $authenticated = false;
private ?string $clientPublicKeyDer = null;
/**
* @phpstan-param \Closure(bool $isAuthenticated, bool $authRequired, Translatable|string|null $error, ?string $clientPublicKey) : void $onCompletion
*/
public function __construct(
private string $jwt,
private string $issuer,
private string $mojangPublicKeyDer,
private string $clientDataJwt,
private bool $authRequired,
\Closure $onCompletion
){
$this->storeLocal(self::TLS_KEY_ON_COMPLETION, $onCompletion);
}
public function onRun() : void{
try{
$this->clientPublicKeyDer = $this->validateChain();
$this->error = null;
}catch(VerifyLoginException $e){
$disconnectMessage = $e->getDisconnectMessage();
$this->error = $disconnectMessage instanceof Translatable ? new NonThreadSafeValue($disconnectMessage) : $disconnectMessage;
}
}
private function validateChain() : string{
$claims = AuthJwtHelper::validateOpenIdAuthToken($this->jwt, $this->mojangPublicKeyDer, issuer: $this->issuer, audience: self::MOJANG_AUDIENCE);
//validateToken will throw if the JWT is not valid
$this->authenticated = true;
$clientDerKey = base64_decode($claims->cpk, strict: true);
if($clientDerKey === false){
throw new VerifyLoginException("Invalid client public key: base64 error decoding");
}
//no further validation needed - OpenSSL will bail if the key is invalid
AuthJwtHelper::validateSelfSignedToken($this->clientDataJwt, $clientDerKey);
return $clientDerKey;
}
public function onCompletion() : void{
/**
* @var \Closure $callback
* @phpstan-var \Closure(bool, bool, Translatable|string|null, ?string) : void $callback
*/
$callback = $this->fetchLocal(self::TLS_KEY_ON_COMPLETION);
$callback($this->authenticated, $this->authRequired, $this->error instanceof NonThreadSafeValue ? $this->error->deserialize() : $this->error, $this->clientPublicKeyDer);
}
}