Merge pull request #9546 from nextcloud/backport/9517/stable12

[stable12] Improve OAuth

apps/oauth2/appinfo/info.xml

@@ -6,7 +6,7 @@
 	<licence>agpl</licence>
 	<author>Lukas Reschke</author>
 	<namespace>OAuth2</namespace>
-	<version>1.0.5</version>
+	<version>1.0.6</version>
 	<default_enable/>
 	<types>
 		<authentication/>
@@ -16,6 +16,12 @@
 		<nextcloud min-version="12" max-version="12" />
 	</dependencies>
 
+	<repair-steps>
+		<post-migration>
+			<step>OCA\OAuth2\Migration\SetTokenExpiration</step>
+		</post-migration>
+	</repair-steps>
+
 	<settings>
 		<admin>OCA\OAuth2\Settings\Admin</admin>
 	</settings>

apps/oauth2/lib/Controller/LoginRedirectorController.php

@@ -61,11 +61,20 @@ class LoginRedirectorController extends Controller {
 	 *
 	 * @param string $client_id
 	 * @param string $state
+	 * @param string $response_type
 	 * @return RedirectResponse
 	 */
 	public function authorize($client_id,
-							  $state) {
+							  $state,
+							  $response_type) {
 		$client = $this->clientMapper->getByIdentifier($client_id);
+
+		if ($response_type !== 'code') {
+			//Fail
+			$url = $client->getRedirectUri() . '?error=unsupported_response_type&state=' . $state;
+			return new RedirectResponse($url);
+		}
+
 		$this->session->set('oauth.state', $state);
 
 		$targetUrl = $this->urlGenerator->linkToRouteAbsolute(

apps/oauth2/lib/Controller/OauthApiController.php

@@ -21,10 +21,17 @@
 
 namespace OCA\OAuth2\Controller;
 
-use OC\Authentication\Token\DefaultTokenMapper;
+use OC\Authentication\Exceptions\InvalidTokenException;
+use OC\Authentication\Token\ExpiredTokenException;
+use OC\Authentication\Token\IProvider as TokenProvider;
 use OCA\OAuth2\Db\AccessTokenMapper;
+use OCA\OAuth2\Db\ClientMapper;
+use OCA\OAuth2\Exceptions\AccessTokenNotFoundException;
+use OCA\OAuth2\Exceptions\ClientNotFoundException;
 use OCP\AppFramework\Controller;
+use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\JSONResponse;
+use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\IRequest;
 use OCP\Security\ICrypto;
 use OCP\Security\ISecureRandom;
@@ -32,56 +39,133 @@ use OCP\Security\ISecureRandom;
 class OauthApiController extends Controller {
 	/** @var AccessTokenMapper */
 	private $accessTokenMapper;
+	/** @var ClientMapper */
+	private $clientMapper;
 	/** @var ICrypto */
 	private $crypto;
-	/** @var DefaultTokenMapper */
+	/** @var TokenProvider */
-	private $defaultTokenMapper;
+	private $tokenProvider;
 	/** @var ISecureRandom */
 	private $secureRandom;
+	/** @var ITimeFactory */
+	private $time;
 
 	/**
 	 * @param string $appName
 	 * @param IRequest $request
 	 * @param ICrypto $crypto
 	 * @param AccessTokenMapper $accessTokenMapper
-	 * @param DefaultTokenMapper $defaultTokenMapper
+	 * @param ClientMapper $clientMapper
+	 * @param TokenProvider $tokenProvider
 	 * @param ISecureRandom $secureRandom
+	 * @param ITimeFactory $time
 	 */
 	public function __construct($appName,
 								IRequest $request,
 								ICrypto $crypto,
 								AccessTokenMapper $accessTokenMapper,
-								DefaultTokenMapper $defaultTokenMapper,
+								ClientMapper $clientMapper,
-								ISecureRandom $secureRandom) {
+								TokenProvider $tokenProvider,
+								ISecureRandom $secureRandom,
+								ITimeFactory $time) {
 		parent::__construct($appName, $request);
 		$this->crypto = $crypto;
 		$this->accessTokenMapper = $accessTokenMapper;
-		$this->defaultTokenMapper = $defaultTokenMapper;
+		$this->clientMapper = $clientMapper;
+		$this->tokenProvider = $tokenProvider;
 		$this->secureRandom = $secureRandom;
+		$this->time = $time;
 	}
 
 	/**
 	 * @PublicPage
 	 * @NoCSRFRequired
 	 *
+	 * @param string $grant_type
 	 * @param string $code
+	 * @param string $refresh_token
+	 * @param string $client_id
+	 * @param string $client_secret
 	 * @return JSONResponse
 	 */
-	public function getToken($code) {
+	public function getToken($grant_type, $code, $refresh_token, $client_id, $client_secret) {
-		$accessToken = $this->accessTokenMapper->getByCode($code);
+
+		// We only handle two types
+		if ($grant_type !== 'authorization_code' && $grant_type !== 'refresh_token') {
+			return new JSONResponse([
+				'error' => 'invalid_grant',
+			], Http::STATUS_BAD_REQUEST);
+		}
+
+		// We handle the initial and refresh tokens the same way
+		if ($grant_type === 'refresh_token' ) {
+			$code = $refresh_token;
+		}
+
+		try {
+			$accessToken = $this->accessTokenMapper->getByCode($code);
+		} catch (AccessTokenNotFoundException $e) {
+			return new JSONResponse([
+				'error' => 'invalid_request',
+			], Http::STATUS_BAD_REQUEST);
+		}
+
+		try {
+			$client = $this->clientMapper->getByUid($accessToken->getClientId());
+		} catch (ClientNotFoundException $e) {
+			return new JSONResponse([
+				'error' => 'invalid_request',
+			], Http::STATUS_BAD_REQUEST);
+		}
+
+		// The client id and secret must match. Else we don't provide an access token!
+		if ($client->getClientIdentifier() !== $client_id || $client->getSecret() !== $client_secret) {
+			return new JSONResponse([
+				'error' => 'invalid_client',
+			], Http::STATUS_BAD_REQUEST);
+		}
+
 		$decryptedToken = $this->crypto->decrypt($accessToken->getEncryptedToken(), $code);
-		$newCode = $this->secureRandom->generate(128);
+
+		// Obtain the appToken assoicated
+		try {
+			$appToken = $this->tokenProvider->getTokenById($accessToken->getTokenId());
+		} catch (ExpiredTokenException $e) {
+			$appToken = $e->getToken();
+		} catch (InvalidTokenException $e) {
+			//We can't do anything...
+			$this->accessTokenMapper->delete($accessToken);
+			return new JSONResponse([
+				'error' => 'invalid_request',
+			], Http::STATUS_BAD_REQUEST);
+		}
+
+		// Rotate the apptoken (so the old one becomes invalid basically)
+		$newToken = $this->secureRandom->generate(72, ISecureRandom::CHAR_UPPER.ISecureRandom::CHAR_LOWER.ISecureRandom::CHAR_DIGITS);
+
+		$appToken = $this->tokenProvider->rotate(
+			$appToken,
+			$decryptedToken,
+			$newToken
+		);
+
+		// Expiration is in 1 hour again
+		$appToken->setExpires($this->time->getTime() + 3600);
+		$this->tokenProvider->updateToken($appToken);
+
+		// Generate a new refresh token and encrypt the new apptoken in the DB
+		$newCode = $this->secureRandom->generate(128, ISecureRandom::CHAR_UPPER.ISecureRandom::CHAR_LOWER.ISecureRandom::CHAR_DIGITS);
 		$accessToken->setHashedCode(hash('sha512', $newCode));
-		$accessToken->setEncryptedToken($this->crypto->encrypt($decryptedToken, $newCode));
+		$accessToken->setEncryptedToken($this->crypto->encrypt($newToken, $newCode));
 		$this->accessTokenMapper->update($accessToken);
 
 		return new JSONResponse(
 			[
-				'access_token' => $decryptedToken,
+				'access_token' => $newToken,
 				'token_type' => 'Bearer',
 				'expires_in' => 3600,
 				'refresh_token' => $newCode,
-				'user_id' => $this->defaultTokenMapper->getTokenById($accessToken->getTokenId())->getUID(),
+				'user_id' => $appToken->getUID(),
 			]
 		);
 	}

apps/oauth2/lib/Migration/SetTokenExpiration.php

@@ -0,0 +1,77 @@
+<?php
+/**
+ * @copyright Copyright 2018, Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\OAuth2\Migration;
+
+use OC\Authentication\Exceptions\InvalidTokenException;
+use OC\Authentication\Token\IProvider as TokenProvider;
+use OCA\OAuth2\Db\AccessToken;
+use OCP\AppFramework\Utility\ITimeFactory;
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+use OCP\Migration\IRepairStep;
+
+class SetTokenExpiration implements IRepairStep {
+
+	/** @var IDBConnection */
+	private $connection;
+
+	/** @var ITimeFactory */
+	private $time;
+
+	/** @var TokenProvider */
+	private $tokenProvider;
+
+	public function __construct(IDBConnection $connection,
+								ITimeFactory $timeFactory,
+								TokenProvider $tokenProvider) {
+		$this->connection = $connection;
+		$this->time = $timeFactory;
+		$this->tokenProvider = $tokenProvider;
+	}
+
+	public function getName() {
+		return 'Update OAuth token expiration times';
+	}
+
+	public function run(IOutput $output) {
+		$qb = $this->connection->getQueryBuilder();
+		$qb->select('*')
+			->from('oauth2_access_tokens');
+
+		$cursor = $qb->execute();
+
+		while($row = $cursor->fetch()) {
+			$token = AccessToken::fromRow($row);
+			try {
+				$appToken = $this->tokenProvider->getTokenById($token->getTokenId());
+				$appToken->setExpires($this->time->getTime() + 3600);
+				$this->tokenProvider->updateToken($appToken);
+			} catch (InvalidTokenException $e) {
+				//Skip this token
+			}
+		}
+		$cursor->closeCursor();
+	}
+
+}

apps/oauth2/tests/Controller/LoginRedirectorControllerTest.php

@@ -86,6 +86,24 @@ class LoginRedirectorControllerTest extends TestCase {
 			->willReturn('https://example.com/?clientIdentifier=foo');
 
 		$expected = new RedirectResponse('https://example.com/?clientIdentifier=foo');
-		$this->assertEquals($expected, $this->loginRedirectorController->authorize('MyClientId', 'MyState'));
+		$this->assertEquals($expected, $this->loginRedirectorController->authorize('MyClientId', 'MyState', 'code'));
+	}
+
+	public function testAuthorizeWrongResponseType() {
+		$client = new Client();
+		$client->setClientIdentifier('MyClientIdentifier');
+		$client->setRedirectUri('http://foo.bar');
+		$this->clientMapper
+			->expects($this->once())
+			->method('getByIdentifier')
+			->with('MyClientId')
+			->willReturn($client);
+		$this->session
+			->expects($this->never())
+			->method('set');
+
+
+		$expected = new RedirectResponse('http://foo.bar?error=unsupported_response_type&state=MyState');
+		$this->assertEquals($expected, $this->loginRedirectorController->authorize('MyClientId', 'MyState', 'wrongcode'));
 	}
 }

apps/oauth2/tests/Controller/OauthApiControllerTest.php

@@ -21,12 +21,22 @@
 
 namespace OCA\OAuth2\Tests\Controller;
 
+use OC\Authentication\Exceptions\InvalidTokenException;
 use OC\Authentication\Token\DefaultToken;
 use OC\Authentication\Token\DefaultTokenMapper;
+use OC\Authentication\Token\ExpiredTokenException;
+use OC\Authentication\Token\IProvider as TokenProvider;
+use OC\Authentication\Token\IToken;
 use OCA\OAuth2\Controller\OauthApiController;
 use OCA\OAuth2\Db\AccessToken;
 use OCA\OAuth2\Db\AccessTokenMapper;
+use OCA\OAuth2\Db\Client;
+use OCA\OAuth2\Db\ClientMapper;
+use OCA\OAuth2\Exceptions\AccessTokenNotFoundException;
+use OCA\OAuth2\Exceptions\ClientNotFoundException;
+use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\JSONResponse;
+use OCP\AppFramework\Utility\ITimeFactory;
 use OCP\IRequest;
 use OCP\Security\ICrypto;
 use OCP\Security\ISecureRandom;
@@ -39,10 +49,14 @@ class OauthApiControllerTest extends TestCase {
 	private $crypto;
 	/** @var AccessTokenMapper|\PHPUnit_Framework_MockObject_MockObject */
 	private $accessTokenMapper;
-	/** @var DefaultTokenMapper|\PHPUnit_Framework_MockObject_MockObject */
+	/** @var ClientMapper|\PHPUnit_Framework_MockObject_MockObject */
-	private $defaultTokenMapper;
+	private $clientMapper;
+	/** @var TokenProvider|\PHPUnit_Framework_MockObject_MockObject */
+	private $tokenProvider;
 	/** @var ISecureRandom|\PHPUnit_Framework_MockObject_MockObject */
 	private $secureRandom;
+	/** @var ITimeFactory|\PHPUnit_Framework_MockObject_MockObject */
+	private $time;
 	/** @var OauthApiController */
 	private $oauthApiController;
 
@@ -52,55 +66,307 @@ class OauthApiControllerTest extends TestCase {
 		$this->request = $this->createMock(IRequest::class);
 		$this->crypto = $this->createMock(ICrypto::class);
 		$this->accessTokenMapper = $this->createMock(AccessTokenMapper::class);
-		$this->defaultTokenMapper = $this->createMock(DefaultTokenMapper::class);
+		$this->clientMapper = $this->createMock(ClientMapper::class);
+		$this->tokenProvider = $this->createMock(TokenProvider::class);
 		$this->secureRandom = $this->createMock(ISecureRandom::class);
+		$this->time = $this->createMock(ITimeFactory::class);
 
 		$this->oauthApiController = new OauthApiController(
 			'oauth2',
 			$this->request,
 			$this->crypto,
 			$this->accessTokenMapper,
-			$this->defaultTokenMapper,
+			$this->clientMapper,
-			$this->secureRandom
+			$this->tokenProvider,
+			$this->secureRandom,
+			$this->time
 		);
 	}
 
-	public function testGetToken() {
+	public function testGetTokenInvalidGrantType() {
+		$expected = new JSONResponse([
+			'error' => 'invalid_grant',
+		], Http::STATUS_BAD_REQUEST);
+
+		$this->assertEquals($expected, $this->oauthApiController->getToken('foo', null, null, null, null));
+	}
+
+	public function testGetTokenInvalidCode() {
+		$expected = new JSONResponse([
+			'error' => 'invalid_request',
+		], Http::STATUS_BAD_REQUEST);
+
+		$this->accessTokenMapper->method('getByCode')
+			->with('invalidcode')
+			->willThrowException(new AccessTokenNotFoundException());
+
+		$this->assertEquals($expected, $this->oauthApiController->getToken('authorization_code', 'invalidcode', null, null, null));
+	}
+
+	public function testGetTokenInvalidRefreshToken() {
+		$expected = new JSONResponse([
+			'error' => 'invalid_request',
+		], Http::STATUS_BAD_REQUEST);
+
+		$this->accessTokenMapper->method('getByCode')
+			->with('invalidrefresh')
+			->willThrowException(new AccessTokenNotFoundException());
+
+		$this->assertEquals($expected, $this->oauthApiController->getToken('refresh_token', null, 'invalidrefresh', null, null));
+	}
+
+	public function testGetTokenClientDoesNotExist() {
+		$expected = new JSONResponse([
+			'error' => 'invalid_request',
+		], Http::STATUS_BAD_REQUEST);
+
 		$accessToken = new AccessToken();
-		$accessToken->setEncryptedToken('MyEncryptedToken');
+		$accessToken->setClientId(42);
-		$accessToken->setTokenId(123);
-		$this->accessTokenMapper
-			->expects($this->once())
-			->method('getByCode')
-			->willReturn($accessToken);
-		$this->crypto
-			->expects($this->once())
-			->method('decrypt')
-			->with('MyEncryptedToken', 'MySecretCode')
-			->willReturn('MyDecryptedToken');
-		$this->secureRandom
-			->expects($this->once())
-			->method('generate')
-			->with(128)
-			->willReturn('NewToken');
-		$token = new DefaultToken();
-		$token->setUid('JohnDoe');
-		$this->defaultTokenMapper
-			->expects($this->once())
-			->method('getTokenById')
-			->with(123)
-			->willReturn($token);
 
-		$expected = new JSONResponse(
+		$this->accessTokenMapper->method('getByCode')
-			[
+			->with('validrefresh')
-				'access_token' => 'MyDecryptedToken',
+			->willReturn($accessToken);
-				'token_type' => 'Bearer',
+
-				'expires_in' => 3600,
+		$this->clientMapper->method('getByUid')
-				'refresh_token' => 'NewToken',
+			->with(42)
-				'user_id' => 'JohnDoe',
+			->willThrowException(new ClientNotFoundException());
-			]
+
-		);
+		$this->assertEquals($expected, $this->oauthApiController->getToken('refresh_token', null, 'validrefresh', null, null));
-		$this->assertEquals($expected, $this->oauthApiController->getToken('MySecretCode'));
 	}
 
+	public function invalidClientProvider() {
+		return [
+			['invalidClientId', 'invalidClientSecret'],
+			['clientId', 'invalidClientSecret'],
+			['invalidClientId', 'clientSecret'],
+		];
+	}
+
+	/**
+	 * @dataProvider invalidClientProvider
+	 *
+	 * @param string $clientId
+	 * @param string $clientSecret
+	 */
+	public function testGetTokenInvalidClient($clientId, $clientSecret) {
+		$expected = new JSONResponse([
+			'error' => 'invalid_client',
+		], Http::STATUS_BAD_REQUEST);
+
+		$accessToken = new AccessToken();
+		$accessToken->setClientId(42);
+
+		$this->accessTokenMapper->method('getByCode')
+			->with('validrefresh')
+			->willReturn($accessToken);
+
+		$client = new Client();
+		$client->setClientIdentifier('clientId');
+		$client->setSecret('clientSecret');
+		$this->clientMapper->method('getByUid')
+			->with(42)
+			->willReturn($client);
+
+		$this->assertEquals($expected, $this->oauthApiController->getToken('refresh_token', null, 'validrefresh', $clientId, $clientSecret));
+	}
+
+	public function testGetTokenInvalidAppToken() {
+		$expected = new JSONResponse([
+			'error' => 'invalid_request',
+		], Http::STATUS_BAD_REQUEST);
+
+		$accessToken = new AccessToken();
+		$accessToken->setClientId(42);
+		$accessToken->setTokenId(1337);
+		$accessToken->setEncryptedToken('encryptedToken');
+
+		$this->accessTokenMapper->method('getByCode')
+			->with('validrefresh')
+			->willReturn($accessToken);
+
+		$client = new Client();
+		$client->setClientIdentifier('clientId');
+		$client->setSecret('clientSecret');
+		$this->clientMapper->method('getByUid')
+			->with(42)
+			->willReturn($client);
+
+		$this->crypto->method('decrypt')
+			->with(
+				'encryptedToken',
+				'validrefresh'
+			)->willReturn('decryptedToken');
+
+		$this->tokenProvider->method('getTokenById')
+			->with(1337)
+			->willThrowException(new InvalidTokenException());
+
+		$this->accessTokenMapper->expects($this->once())
+			->method('delete')
+			->with($accessToken);
+
+		$this->assertEquals($expected, $this->oauthApiController->getToken('refresh_token', null, 'validrefresh', 'clientId', 'clientSecret'));
+	}
+
+	public function testGetTokenValidAppToken() {
+		$accessToken = new AccessToken();
+		$accessToken->setClientId(42);
+		$accessToken->setTokenId(1337);
+		$accessToken->setEncryptedToken('encryptedToken');
+
+		$this->accessTokenMapper->method('getByCode')
+			->with('validrefresh')
+			->willReturn($accessToken);
+
+		$client = new Client();
+		$client->setClientIdentifier('clientId');
+		$client->setSecret('clientSecret');
+		$this->clientMapper->method('getByUid')
+			->with(42)
+			->willReturn($client);
+
+		$this->crypto->method('decrypt')
+			->with(
+				'encryptedToken',
+				'validrefresh'
+			)->willReturn('decryptedToken');
+
+		$appToken = new DefaultToken();
+		$appToken->setUid('userId');
+		$this->tokenProvider->method('getTokenById')
+			->with(1337)
+			->willThrowException(new ExpiredTokenException($appToken));
+
+		$this->accessTokenMapper->expects($this->never())
+			->method('delete')
+			->with($accessToken);
+
+		$this->secureRandom->method('generate')
+			->will($this->returnCallback(function ($len) {
+				return 'random'.$len;
+			}));
+
+		$this->tokenProvider->expects($this->once())
+			->method('rotate')
+			->with(
+				$appToken,
+				'decryptedToken',
+				'random72'
+			)->willReturn($appToken);
+
+		$this->time->method('getTime')
+			->willReturn(1000);
+
+		$this->tokenProvider->expects($this->once())
+			->method('updateToken')
+			->with(
+				$this->callback(function (DefaultToken $token) {
+					return $token->getExpires() === 4600;
+				})
+			);
+
+		$this->crypto->method('encrypt')
+			->with('random72', 'random128')
+			->willReturn('newEncryptedToken');
+
+		$this->accessTokenMapper->expects($this->once())
+			->method('update')
+			->with(
+				$this->callback(function (AccessToken $token) {
+					return $token->getHashedCode() === hash('sha512', 'random128') &&
+						$token->getEncryptedToken() === 'newEncryptedToken';
+				})
+			);
+
+		$expected = new JSONResponse([
+			'access_token' => 'random72',
+			'token_type' => 'Bearer',
+			'expires_in' => 3600,
+			'refresh_token' => 'random128',
+			'user_id' => 'userId',
+		]);
+
+		$this->assertEquals($expected, $this->oauthApiController->getToken('refresh_token', null, 'validrefresh', 'clientId', 'clientSecret'));
+	}
+
+	public function testGetTokenExpiredAppToken() {
+		$accessToken = new AccessToken();
+		$accessToken->setClientId(42);
+		$accessToken->setTokenId(1337);
+		$accessToken->setEncryptedToken('encryptedToken');
+
+		$this->accessTokenMapper->method('getByCode')
+			->with('validrefresh')
+			->willReturn($accessToken);
+
+		$client = new Client();
+		$client->setClientIdentifier('clientId');
+		$client->setSecret('clientSecret');
+		$this->clientMapper->method('getByUid')
+			->with(42)
+			->willReturn($client);
+
+		$this->crypto->method('decrypt')
+			->with(
+				'encryptedToken',
+				'validrefresh'
+			)->willReturn('decryptedToken');
+
+		$appToken = new DefaultToken();
+		$appToken->setUid('userId');
+		$this->tokenProvider->method('getTokenById')
+			->with(1337)
+			->willReturn($appToken);
+
+		$this->accessTokenMapper->expects($this->never())
+			->method('delete')
+			->with($accessToken);
+
+		$this->secureRandom->method('generate')
+			->will($this->returnCallback(function ($len) {
+				return 'random'.$len;
+			}));
+
+		$this->tokenProvider->expects($this->once())
+			->method('rotate')
+			->with(
+				$appToken,
+				'decryptedToken',
+				'random72'
+			)->willReturn($appToken);
+
+		$this->time->method('getTime')
+			->willReturn(1000);
+
+		$this->tokenProvider->expects($this->once())
+			->method('updateToken')
+			->with(
+				$this->callback(function (DefaultToken $token) {
+					return $token->getExpires() === 4600;
+				})
+			);
+
+		$this->crypto->method('encrypt')
+			->with('random72', 'random128')
+			->willReturn('newEncryptedToken');
+
+		$this->accessTokenMapper->expects($this->once())
+			->method('update')
+			->with(
+				$this->callback(function (AccessToken $token) {
+					return $token->getHashedCode() === hash('sha512', 'random128') &&
+						$token->getEncryptedToken() === 'newEncryptedToken';
+				})
+			);
+
+		$expected = new JSONResponse([
+			'access_token' => 'random72',
+			'token_type' => 'Bearer',
+			'expires_in' => 3600,
+			'refresh_token' => 'random128',
+			'user_id' => 'userId',
+		]);
+
+		$this->assertEquals($expected, $this->oauthApiController->getToken('refresh_token', null, 'validrefresh', 'clientId', 'clientSecret'));
+	}
 }

core/Controller/ClientFlowLoginController.php

@@ -286,7 +286,7 @@ class ClientFlowLoginController extends Controller {
 		);
 
 		if($client) {
-			$code = $this->random->generate(128);
+			$code = $this->random->generate(128, ISecureRandom::CHAR_UPPER.ISecureRandom::CHAR_LOWER.ISecureRandom::CHAR_DIGITS);
 			$accessToken = new AccessToken();
 			$accessToken->setClientId($client->getId());
 			$accessToken->setEncryptedToken($this->crypto->encrypt($token, $code));

db_structure.xml

@@ -1181,6 +1181,15 @@
 				<notnull>false</notnull>
 			</field>
 
+			<field>
+				<name>expires</name>
+				<type>integer</type>
+				<default></default>
+				<notnull>false</notnull>
+				<unsigned>true</unsigned>
+				<length>4</length>
+			</field>
+
 			<index>
 				<name>authtoken_token_index</name>
 				<unique>true</unique>

lib/composer/composer/autoload_classmap.php

@@ -363,6 +363,7 @@ return array(
     'OC\\Authentication\\Token\\DefaultTokenCleanupJob' => $baseDir . '/lib/private/Authentication/Token/DefaultTokenCleanupJob.php',
     'OC\\Authentication\\Token\\DefaultTokenMapper' => $baseDir . '/lib/private/Authentication/Token/DefaultTokenMapper.php',
     'OC\\Authentication\\Token\\DefaultTokenProvider' => $baseDir . '/lib/private/Authentication/Token/DefaultTokenProvider.php',
+    'OC\\Authentication\\Token\\ExpiredTokenException' => $baseDir . '/lib/private/Authentication/Exceptions/ExpiredTokenException.php',
     'OC\\Authentication\\Token\\IProvider' => $baseDir . '/lib/private/Authentication/Token/IProvider.php',
     'OC\\Authentication\\Token\\IToken' => $baseDir . '/lib/private/Authentication/Token/IToken.php',
     'OC\\Authentication\\TwoFactorAuth\\Manager' => $baseDir . '/lib/private/Authentication/TwoFactorAuth/Manager.php',

lib/composer/composer/autoload_static.php

@@ -393,6 +393,7 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OC\\Authentication\\Token\\DefaultTokenCleanupJob' => __DIR__ . '/../../..' . '/lib/private/Authentication/Token/DefaultTokenCleanupJob.php',
         'OC\\Authentication\\Token\\DefaultTokenMapper' => __DIR__ . '/../../..' . '/lib/private/Authentication/Token/DefaultTokenMapper.php',
         'OC\\Authentication\\Token\\DefaultTokenProvider' => __DIR__ . '/../../..' . '/lib/private/Authentication/Token/DefaultTokenProvider.php',
+        'OC\\Authentication\\Token\\ExpiredTokenException' => __DIR__ . '/../../..' . '/lib/private/Authentication/Exceptions/ExpiredTokenException.php',
         'OC\\Authentication\\Token\\IProvider' => __DIR__ . '/../../..' . '/lib/private/Authentication/Token/IProvider.php',
         'OC\\Authentication\\Token\\IToken' => __DIR__ . '/../../..' . '/lib/private/Authentication/Token/IToken.php',
         'OC\\Authentication\\TwoFactorAuth\\Manager' => __DIR__ . '/../../..' . '/lib/private/Authentication/TwoFactorAuth/Manager.php',

lib/private/Authentication/Exceptions/ExpiredTokenException.php

@@ -0,0 +1,40 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @author Roeland Jago Douma <roeland@famdouma.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+namespace OC\Authentication\Token;
+
+use OC\Authentication\Exceptions\InvalidTokenException;
+
+class ExpiredTokenException extends InvalidTokenException {
+	/** @var IToken */
+	private $token;
+
+	public function __construct(IToken $token) {
+		parent::__construct();
+
+		$this->token = $token;
+	}
+
+	public function getToken() {
+		return $this->token;
+	}
+}

lib/private/Authentication/Token/DefaultToken.php

@@ -28,10 +28,8 @@ use OCP\AppFramework\Db\Entity;
  * @method void setId(int $id)
  * @method void setUid(string $uid);
  * @method void setLoginName(string $loginName)
- * @method void setPassword(string $password)
  * @method void setName(string $name)
  * @method string getName()
- * @method void setToken(string $token)
  * @method string getToken()
  * @method void setType(string $type)
  * @method int getType()
@@ -92,10 +90,18 @@ class DefaultToken extends Entity implements IToken {
 	 */
 	protected $scope;
 
+	/** @var int */
+	protected $expires;
+
 	public function __construct() {
 		$this->addType('type', 'int');
 		$this->addType('lastActivity', 'int');
 		$this->addType('lastCheck', 'int');
+		$this->addType('scope', 'string');
+		$this->addType('expires', 'int');
+
+		$this->setExpires(null);
+		$this->markFieldUpdated('expires');
 	}
 
 	public function getId() {
@@ -173,4 +179,23 @@ class DefaultToken extends Entity implements IToken {
 			parent::setScope((string)$scope);
 		}
 	}
+
+	public function setToken($token) {
+		parent::setToken($token);
+	}
+
+	public function setPassword($password = null) {
+		parent::setPassword($password);
+	}
+
+	public function setExpires($expires) {
+		parent::setExpires($expires);
+	}
+
+	/**
+	 * @return int|null
+	 */
+	public function getExpires() {
+		return parent::getExpires();
+	}
 }

lib/private/Authentication/Token/DefaultTokenMapper.php

@@ -72,7 +72,7 @@ class DefaultTokenMapper extends Mapper {
 	public function getToken($token) {
 		/* @var $qb IQueryBuilder */
 		$qb = $this->db->getQueryBuilder();
-		$result = $qb->select('id', 'uid', 'login_name', 'password', 'name', 'type', 'remember', 'token', 'last_activity', 'last_check', 'scope')
+		$result = $qb->select('*')
 			->from('authtoken')
 			->where($qb->expr()->eq('token', $qb->createNamedParameter($token)))
 			->execute();
@@ -96,7 +96,7 @@ class DefaultTokenMapper extends Mapper {
 	public function getTokenById($id) {
 		/* @var $qb IQueryBuilder */
 		$qb = $this->db->getQueryBuilder();
-		$result = $qb->select('id', 'uid', 'login_name', 'password', 'name', 'type', 'token', 'last_activity', 'last_check', 'scope')
+		$result = $qb->select('*')
 			->from('authtoken')
 			->where($qb->expr()->eq('id', $qb->createNamedParameter($id)))
 			->execute();
@@ -121,7 +121,7 @@ class DefaultTokenMapper extends Mapper {
 	public function getTokenByUser(IUser $user) {
 		/* @var $qb IQueryBuilder */
 		$qb = $this->db->getQueryBuilder();
-		$qb->select('id', 'uid', 'login_name', 'password', 'name', 'type', 'remember', 'token', 'last_activity', 'last_check', 'scope')
+		$qb->select('*')
 			->from('authtoken')
 			->where($qb->expr()->eq('uid', $qb->createNamedParameter($user->getUID())))
 			->setMaxResults(1000);

lib/private/Authentication/Token/DefaultTokenProvider.php

@@ -150,13 +150,20 @@ class DefaultTokenProvider implements IProvider {
 	 * @param string $tokenId
 	 * @throws InvalidTokenException
 	 * @return DefaultToken
+	 * @throws ExpiredTokenException
 	 */
 	public function getToken($tokenId) {
 		try {
-			return $this->mapper->getToken($this->hashToken($tokenId));
+			$token = $this->mapper->getToken($this->hashToken($tokenId));
 		} catch (DoesNotExistException $ex) {
 			throw new InvalidTokenException();
 		}
+
+		if ($token->getExpires() !== null && $token->getExpires() < $this->time->getTime()) {
+			throw new ExpiredTokenException($token);
+		}
+
+		return $token;
 	}
 
 	/**
@@ -165,13 +172,21 @@ class DefaultTokenProvider implements IProvider {
 	 * @param string $tokenId
 	 * @throws InvalidTokenException
 	 * @return DefaultToken
+	 * @throws ExpiredTokenException
+	 * @return IToken
 	 */
 	public function getTokenById($tokenId) {
 		try {
-			return $this->mapper->getTokenById($tokenId);
+			$token = $this->mapper->getTokenById($tokenId);
 		} catch (DoesNotExistException $ex) {
 			throw new InvalidTokenException();
 		}
+
+		if ($token->getExpires() !== null && $token->getExpires() < $this->time->getTime()) {
+			throw new ExpiredTokenException($token);
+		}
+
+		return $token;
 	}
 
 	/**
@@ -261,6 +276,28 @@ class DefaultTokenProvider implements IProvider {
 		$this->mapper->invalidateOld($rememberThreshold, IToken::REMEMBER);
 	}
 
+	/**
+	 * Rotate the token. Usefull for for example oauth tokens
+	 *
+	 * @param IToken $token
+	 * @param string $oldTokenId
+	 * @param string $newTokenId
+	 * @return IToken
+	 */
+	public function rotate(IToken $token, $oldTokenId, $newTokenId) {
+		try {
+			$password = $this->getPassword($token, $oldTokenId);
+			$token->setPassword($this->encryptPassword($password, $newTokenId));
+		} catch (PasswordlessTokenException $e) {
+
+		}
+
+		$token->setToken($this->hashToken($newTokenId));
+		$this->updateToken($token);
+
+		return $token;
+	}
+
 	/**
 	 * @param string $token
 	 * @return string

lib/private/Authentication/Token/IProvider.php

@@ -48,6 +48,7 @@ interface IProvider {
 	 *
 	 * @param string $tokenId
 	 * @throws InvalidTokenException
+	 * @throws ExpiredTokenException
 	 * @return IToken
 	 */
 	public function getToken($tokenId);
@@ -58,6 +59,7 @@ interface IProvider {
 	 * @param string $tokenId
 	 * @throws InvalidTokenException
 	 * @return DefaultToken
+	 * @throws ExpiredTokenException
 	 */
 	public function getTokenById($tokenId);
 
@@ -135,4 +137,14 @@ interface IProvider {
 	 * @throws InvalidTokenException
 	 */
 	public function setPassword(IToken $token, $tokenId, $password);
+
+	/**
+	 * Rotate the token. Usefull for for example oauth tokens
+	 *
+	 * @param IToken $token
+	 * @param string $oldTokenId
+	 * @param string $newTokenId
+	 * @return IToken
+	 */
+	public function rotate(IToken $token, $oldTokenId, $newTokenId);
 }

lib/private/Authentication/Token/IToken.php

@@ -93,4 +93,25 @@ interface IToken extends JsonSerializable {
 	 * @param array $scope
 	 */
 	public function setScope($scope);
+
+	/**
+	 * Set the token
+	 *
+	 * @param string $token
+	 */
+	public function setToken($token);
+
+	/**
+	 * Set the password
+	 *
+	 * @param string $password
+	 */
+	public function setPassword($password);
+
+	/**
+	 * Set the expiration time of the token
+	 *
+	 * @param int|null $expires
+	 */
+	public function setExpires($expires);
 }

tests/lib/Authentication/Token/DefaultTokenProviderTest.php

@@ -25,6 +25,7 @@ namespace Test\Authentication\Token;
 use OC\Authentication\Exceptions\InvalidTokenException;
 use OC\Authentication\Token\DefaultToken;
 use OC\Authentication\Token\DefaultTokenProvider;
+use OC\Authentication\Token\ExpiredTokenException;
 use OC\Authentication\Token\IToken;
 use OCP\AppFramework\Db\DoesNotExistException;
 use OCP\AppFramework\Db\Mapper;
@@ -396,6 +397,63 @@ class DefaultTokenProviderTest extends TestCase {
 		$this->tokenProvider->renewSessionToken('oldId', 'newId');
 	}
 
+	public function testGetToken() {
+		$token = new DefaultToken();
+
+		$this->config->method('getSystemValue')
+			->with('secret')
+			->willReturn('mysecret');
+
+		$this->mapper->method('getToken')
+			->with(
+				$this->callback(function ($token) {
+					return hash('sha512', 'unhashedTokenmysecret') === $token;
+				})
+			)->willReturn($token);
+
+		$this->assertSame($token, $this->tokenProvider->getToken('unhashedToken'));
+	}
+
+	public function testGetInvalidToken() {
+		$this->expectException(InvalidTokenException::class);
+
+		$this->config->method('getSystemValue')
+			->with('secret')
+			->willReturn('mysecret');
+
+		$this->mapper->method('getToken')
+			->with(
+				$this->callback(function ($token) {
+					return hash('sha512', 'unhashedTokenmysecret') === $token;
+				})
+			)->willThrowException(new InvalidTokenException());
+
+		$this->tokenProvider->getToken('unhashedToken');
+	}
+
+	public function testGetExpiredToken() {
+		$token = new DefaultToken();
+		$token->setExpires(42);
+
+		$this->config->method('getSystemValue')
+			->with('secret')
+			->willReturn('mysecret');
+
+		$this->mapper->method('getToken')
+			->with(
+				$this->callback(function ($token) {
+					return hash('sha512', 'unhashedTokenmysecret') === $token;
+				})
+			)->willReturn($token);
+
+		try {
+			$this->tokenProvider->getToken('unhashedToken');
+		} catch (ExpiredTokenException $e) {
+			$this->assertSame($token, $e->getToken());
+		}
+
+	}
+
 	public function testGetTokenById() {
 		$token = $this->createMock(DefaultToken::class);
 
@@ -417,4 +475,63 @@ class DefaultTokenProviderTest extends TestCase {
 
 		$this->tokenProvider->getTokenById(42);
 	}
+
+	public function testGetExpiredTokenById() {
+		$token = new DefaultToken();
+		$token->setExpires(42);
+
+		$this->mapper->expects($this->once())
+			->method('getTokenById')
+			->with($this->equalTo(42))
+			->willReturn($token);
+
+		try {
+			$this->tokenProvider->getTokenById(42);
+			$this->fail();
+		} catch (ExpiredTokenException $e) {
+			$this->assertSame($token, $e->getToken());
+		}
+	}
+
+	public function testRotate() {
+		$token = new DefaultToken();
+		$token->setPassword('oldencryptedpassword');
+
+		$this->config->method('getSystemValue')
+			->with('secret')
+			->willReturn('mysecret');
+
+		$this->crypto->method('decrypt')
+			->with('oldencryptedpassword', 'oldtokenmysecret')
+			->willReturn('mypassword');
+		$this->crypto->method('encrypt')
+			->with('mypassword', 'newtokenmysecret')
+			->willReturn('newencryptedpassword');
+
+		$this->mapper->expects($this->once())
+			->method('update')
+			->with($this->callback(function (DefaultToken $token) {
+				return $token->getPassword() === 'newencryptedpassword' &&
+					$token->getToken() === hash('sha512', 'newtokenmysecret');
+			}));
+
+		$this->tokenProvider->rotate($token, 'oldtoken', 'newtoken');
+	}
+
+	public function testRotateNoPassword() {
+		$token = new DefaultToken();
+
+		$this->config->method('getSystemValue')
+			->with('secret')
+			->willReturn('mysecret');
+
+		$this->mapper->expects($this->once())
+			->method('update')
+			->with($this->callback(function (DefaultToken $token) {
+				return $token->getPassword() === null &&
+					$token->getToken() === hash('sha512', 'newtokenmysecret');
+			}));
+
+		$this->tokenProvider->rotate($token, 'oldtoken', 'newtoken');
+	}
 }

version.php

@@ -26,7 +26,7 @@
 // between betas, final and RCs. This is _not_ the public version number. Reset minor/patchlevel
 // when updating major/minor version number.
 
-$OC_Version = array(12, 0, 7, 1);
+$OC_Version = array(12, 0, 7, 2);
 
 // The human readable string
 $OC_VersionString = '12.0.7';