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