misc_pterodactyl-panel/app/Http/Middleware/Api/AuthenticateKey.php
2018-06-06 22:49:44 -07:00

148 lines
4.8 KiB
PHP

<?php
namespace Pterodactyl\Http\Middleware\Api;
use Closure;
use Lcobucci\JWT\Parser;
use Cake\Chronos\Chronos;
use Illuminate\Http\Request;
use Pterodactyl\Models\ApiKey;
use Illuminate\Auth\AuthManager;
use Illuminate\Contracts\Encryption\Encrypter;
use Pterodactyl\Traits\Helpers\ProvidesJWTServices;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Pterodactyl\Exceptions\Repository\RecordNotFoundException;
use Pterodactyl\Contracts\Repository\ApiKeyRepositoryInterface;
use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
class AuthenticateKey
{
use ProvidesJWTServices;
/**
* @var \Illuminate\Auth\AuthManager
*/
private $auth;
/**
* @var \Illuminate\Contracts\Encryption\Encrypter
*/
private $encrypter;
/**
* @var \Pterodactyl\Contracts\Repository\ApiKeyRepositoryInterface
*/
private $repository;
/**
* AuthenticateKey constructor.
*
* @param \Pterodactyl\Contracts\Repository\ApiKeyRepositoryInterface $repository
* @param \Illuminate\Auth\AuthManager $auth
* @param \Illuminate\Contracts\Encryption\Encrypter $encrypter
*/
public function __construct(ApiKeyRepositoryInterface $repository, AuthManager $auth, Encrypter $encrypter)
{
$this->auth = $auth;
$this->encrypter = $encrypter;
$this->repository = $repository;
}
/**
* Handle an API request by verifying that the provided API key
* is in a valid format and exists in the database.
*
* @param \Illuminate\Http\Request $request
* @param \Closure $next
* @param int $keyType
* @return mixed
*
* @throws \Pterodactyl\Exceptions\Model\DataValidationException
* @throws \Pterodactyl\Exceptions\Repository\RecordNotFoundException
*/
public function handle(Request $request, Closure $next, int $keyType)
{
if (is_null($request->bearerToken())) {
throw new HttpException(401, null, null, ['WWW-Authenticate' => 'Bearer']);
}
$raw = $request->bearerToken();
// This is an internal JWT, treat it differently to get the correct user before passing it along.
if (strlen($raw) > ApiKey::IDENTIFIER_LENGTH + ApiKey::KEY_LENGTH) {
$model = $this->authenticateJWT($raw);
} else {
$model = $this->authenticateApiKey($raw, $keyType);
}
$this->auth->guard()->loginUsingId($model->user_id);
$request->attributes->set('api_key', $model);
return $next($request);
}
/**
* Authenticate an API request using a JWT rather than an API key.
*
* @param string $token
* @return \Pterodactyl\Models\ApiKey
*/
protected function authenticateJWT(string $token): ApiKey
{
$token = (new Parser)->parse($token);
// If the key cannot be verified throw an exception to indicate that a bad
// authorization header was provided.
if (! $token->verify($this->getJWTSigner(), $this->getJWTSigningKey())) {
throw new HttpException(401, null, null, ['WWW-Authenticate' => 'Bearer']);
}
// Run through the token validation and throw an exception if the token is not valid.
if (
$token->getClaim('nbf') > Chronos::now()->getTimestamp()
|| $token->getClaim('iss') !== 'Pterodactyl Panel'
|| $token->getClaim('aud') !== config('app.url')
|| $token->getClaim('exp') <= Chronos::now()->getTimestamp()
) {
throw new AccessDeniedHttpException;
}
return (new ApiKey)->forceFill([
'user_id' => object_get($token->getClaim('user'), 'id', 0),
'key_type' => ApiKey::TYPE_ACCOUNT,
]);
}
/**
* Authenticate an API key.
*
* @param string $key
* @param int $keyType
* @return \Pterodactyl\Models\ApiKey
*
* @throws \Pterodactyl\Exceptions\Model\DataValidationException
* @throws \Pterodactyl\Exceptions\Repository\RecordNotFoundException
*/
protected function authenticateApiKey(string $key, int $keyType): ApiKey
{
$identifier = substr($key, 0, ApiKey::IDENTIFIER_LENGTH);
$token = substr($key, ApiKey::IDENTIFIER_LENGTH);
try {
$model = $this->repository->findFirstWhere([
['identifier', '=', $identifier],
['key_type', '=', $keyType],
]);
} catch (RecordNotFoundException $exception) {
throw new AccessDeniedHttpException;
}
if (! hash_equals($this->encrypter->decrypt($model->token), $token)) {
throw new AccessDeniedHttpException;
}
$this->repository->withoutFreshModel()->update($model->id, ['last_used_at' => Chronos::now()]);
return $model;
}
}