Add support for the legacy refresh tokens, make the new refresh tokens non-expire [skip ci]

api/components/OAuth2/Component.php

@@ -45,11 +45,11 @@ class Component extends BaseComponent {
             $authServer->enableGrantType($authCodeGrant, $accessTokenTTL);
             $authCodeGrant->setScopeRepository($publicScopesRepo); // Change repository after enabling
 
-            // TODO: extends refresh token life time to forever
             $refreshTokenGrant = new RefreshTokenGrant($refreshTokensRepo);
-            $authServer->enableGrantType($refreshTokenGrant, $accessTokenTTL);
+            $authServer->enableGrantType($refreshTokenGrant);
             $refreshTokenGrant->setScopeRepository($publicScopesRepo); // Change repository after enabling
 
+            // TODO: make these access tokens live longer
             $clientCredentialsGrant = new Grant\ClientCredentialsGrant();
             $authServer->enableGrantType($clientCredentialsGrant, $accessTokenTTL);
             $clientCredentialsGrant->setScopeRepository($internalScopesRepo); // Change repository after enabling

api/components/OAuth2/Entities/RefreshTokenEntity.php

@@ -3,6 +3,8 @@ declare(strict_types=1);
 
 namespace api\components\OAuth2\Entities;
 
+use Carbon\CarbonImmutable;
+use DateTimeImmutable;
 use League\OAuth2\Server\Entities\RefreshTokenEntityInterface;
 use League\OAuth2\Server\Entities\Traits\EntityTrait;
 use League\OAuth2\Server\Entities\Traits\RefreshTokenTrait;
@@ -11,4 +13,17 @@ class RefreshTokenEntity implements RefreshTokenEntityInterface {
     use EntityTrait;
     use RefreshTokenTrait;
 
+    /**
+     * We don't rotate refresh tokens, so that to always pass validation in the internal validator
+     * of the oauth2 server implementation we set the lifetime as far as possible.
+     *
+     * In 2038 this may cause problems, but I am sure that by then this code, if it still works,
+     * will be rewritten several times and the problem will be solved in a completely different way.
+     *
+     * @return DateTimeImmutable
+     */
+    public function getExpiryDateTime(): DateTimeImmutable {
+        return CarbonImmutable::create(2038, 11, 11, 22, 13, 0, 'Europe/Minsk');
+    }
+
 }

api/components/OAuth2/Grants/RefreshTokenGrant.php

@@ -3,12 +3,36 @@ declare(strict_types=1);
 
 namespace api\components\OAuth2\Grants;
 
+use common\models\OauthSession;
 use League\OAuth2\Server\Entities\AccessTokenEntityInterface;
 use League\OAuth2\Server\Entities\RefreshTokenEntityInterface;
+use League\OAuth2\Server\Exception\OAuthServerException;
 use League\OAuth2\Server\Grant\RefreshTokenGrant as BaseRefreshTokenGrant;
+use Psr\Http\Message\ServerRequestInterface;
+use Yii;
 
 class RefreshTokenGrant extends BaseRefreshTokenGrant {
 
+    /**
+     * Previously, refresh tokens was stored in Redis.
+     * If received refresh token is matches the legacy token template,
+     * restore the information from the legacy storage.
+     *
+     * @param ServerRequestInterface $request
+     * @param string $clientId
+     *
+     * @return array
+     * @throws OAuthServerException
+     */
+    protected function validateOldRefreshToken(ServerRequestInterface $request, $clientId): array {
+        $refreshToken = $this->getRequestParameter('refresh_token', $request);
+        if ($refreshToken !== null && mb_strlen($refreshToken) === 40) {
+            return $this->validateLegacyRefreshToken($refreshToken);
+        }
+
+        return parent::validateOldRefreshToken($request, $clientId);
+    }
+
     /**
      * Currently we're not rotating refresh tokens.
      * So we overriding this method to always return null, which means,
@@ -22,4 +46,35 @@ class RefreshTokenGrant extends BaseRefreshTokenGrant {
         return null;
     }
 
+    private function validateLegacyRefreshToken(string $refreshToken): array {
+        $result = Yii::$app->redis->get("oauth:refresh:tokens:{$refreshToken}");
+        if ($result === null) {
+            throw OAuthServerException::invalidRefreshToken('Token has been revoked');
+        }
+
+        try {
+            [
+                'access_token_id' => $accessTokenId,
+                'session_id' => $sessionId,
+            ] = json_decode($result, true, 512, JSON_THROW_ON_ERROR);
+        } catch (\Exception $e) {
+            throw OAuthServerException::invalidRefreshToken('Cannot decrypt the refresh token', $e);
+        }
+
+        /** @var OauthSession|null $relatedSession */
+        $relatedSession = OauthSession::findOne(['legacy_id' => $sessionId]);
+        if ($relatedSession === null) {
+            throw OAuthServerException::invalidRefreshToken('Token has been revoked');
+        }
+
+        return [
+            'client_id' => $relatedSession->client_id,
+            'refresh_token_id' => $refreshToken,
+            'access_token_id' => $accessTokenId,
+            'scopes' => $relatedSession->getScopes(),
+            'user_id' => $relatedSession->account_id,
+            'expire_time' => null,
+        ];
+    }
+
 }

api/components/OAuth2/Repositories/RefreshTokenStorage.php

@@ -1,63 +0,0 @@
-<?php
-namespace api\components\OAuth2\Repositories;
-
-use api\components\OAuth2\Entities\RefreshTokenEntity;
-use common\components\Redis\Key;
-use common\components\Redis\Set;
-use common\models\OauthSession;
-use ErrorException;
-use League\OAuth2\Server\Entity\RefreshTokenEntity as OriginalRefreshTokenEntity;
-use League\OAuth2\Server\Storage\AbstractStorage;
-use League\OAuth2\Server\Storage\RefreshTokenInterface;
-use Yii;
-use yii\helpers\Json;
-
-class RefreshTokenStorage extends AbstractStorage implements RefreshTokenInterface {
-
-    public $dataTable = 'oauth_refresh_tokens';
-
-    public function get($token) {
-        $result = Json::decode((new Key($this->dataTable, $token))->getValue());
-        if ($result === null) {
-            return null;
-        }
-
-        $entity = new RefreshTokenEntity($this->server);
-        $entity->setId($result['id']);
-        $entity->setAccessTokenId($result['access_token_id']);
-        $entity->setSessionId($result['session_id']);
-
-        return $entity;
-    }
-
-    public function create($token, $expireTime, $accessToken) {
-        $sessionId = $this->server->getAccessTokenStorage()->get($accessToken)->getSession()->getId();
-        $payload = Json::encode([
-            'id' => $token,
-            'access_token_id' => $accessToken,
-            'session_id' => $sessionId,
-        ]);
-
-        $this->key($token)->setValue($payload);
-        $this->sessionHash($sessionId)->add($token);
-    }
-
-    public function delete(OriginalRefreshTokenEntity $token) {
-        if (!$token instanceof RefreshTokenEntity) {
-            throw new ErrorException('Token must be instance of ' . RefreshTokenEntity::class);
-        }
-
-        $this->key($token->getId())->delete();
-        $this->sessionHash($token->getSessionId())->remove($token->getId());
-    }
-
-    public function sessionHash(string $sessionId): Set {
-        $tableName = Yii::$app->db->getSchema()->getRawTableName(OauthSession::tableName());
-        return new Set($tableName, $sessionId, 'refresh_tokens');
-    }
-
-    private function key(string $token): Key {
-        return new Key($this->dataTable, $token);
-    }
-
-}

api/modules/oauth/controllers/AuthorizationController.php

@@ -57,7 +57,7 @@ class AuthorizationController extends Controller {
     }
 
     private function createOauthProcess(): OauthProcess {
-        return new OauthProcess(Yii::$app->oauth->authServer);
+        return new OauthProcess(Yii::$app->oauth->getAuthServer());
     }
 
 }