feat(admin): Show an error when the admin is throttled

Signed-off-by: Joas Schilling <coding@schilljs.com>

4 files changed, 84 insertions, 0 deletions

diff --git a/apps/settings/lib/Controller/CheckSetupController.php b/apps/settings/lib/Controller/CheckSetupController.php
index a55596358e5..29ef0343399 100644
--- a/apps/settings/lib/Controller/CheckSetupController.php
+++ b/apps/settings/lib/Controller/CheckSetupController.php
@@ -86,6 +86,7 @@ use OCP\ITempManager;
 use OCP\IURLGenerator;
 use OCP\Lock\ILockingProvider;
 use OCP\Notification\IManager;
+use OCP\Security\Bruteforce\IThrottler;
 use OCP\Security\ISecureRandom;
 use Psr\Log\LoggerInterface;
 use Symfony\Component\EventDispatcher\EventDispatcherInterface;
@@ -122,6 +123,8 @@ class CheckSetupController extends Controller {
 	private $iniGetWrapper;
 	/** @var IDBConnection */
 	private $connection;
+	/** @var IThrottler */
+	private $throttler;
 	/** @var ITempManager */
 	private $tempManager;
 	/** @var IManager */
@@ -148,6 +151,7 @@ class CheckSetupController extends Controller {
 								ISecureRandom $secureRandom,
 								IniGetWrapper $iniGetWrapper,
 								IDBConnection $connection,
+								IThrottler $throttler,
 								ITempManager $tempManager,
 								IManager $manager,
 								IAppManager $appManager,
@@ -163,6 +167,7 @@ class CheckSetupController extends Controller {
 		$this->eventDispatcher = $eventDispatcher;
 		$this->dispatcher = $dispatcher;
 		$this->db = $db;
+		$this->throttler = $throttler;
 		$this->lockingProvider = $lockingProvider;
 		$this->dateTimeFormatter = $dateTimeFormatter;
 		$this->memoryInfo = $memoryInfo;
@@ -909,6 +914,8 @@ Raw output
 				'cronInfo' => $this->getLastCronInfo(),
 				'cronErrors' => $this->getCronErrors(),
 				'isFairUseOfFreePushService' => $this->isFairUseOfFreePushService(),
+				'isBruteforceThrottled' => $this->throttler->getAttempts($this->request->getRemoteAddress()) !== 0,
+				'bruteforceRemoteAddress' => $this->request->getRemoteAddress(),
 				'serverHasInternetConnectionProblems' => $this->hasInternetConnectivityProblems(),
 				'isMemcacheConfigured' => $this->isMemcacheConfigured(),
 				'memcacheDocs' => $this->urlGenerator->linkToDocs('admin-performance'),
diff --git a/apps/settings/tests/Controller/CheckSetupControllerTest.php b/apps/settings/tests/Controller/CheckSetupControllerTest.php
index 390166cb947..2d2d43434b1 100644
--- a/apps/settings/tests/Controller/CheckSetupControllerTest.php
+++ b/apps/settings/tests/Controller/CheckSetupControllerTest.php
@@ -59,6 +59,7 @@ use OCP\ITempManager;
 use OCP\IURLGenerator;
 use OCP\Lock\ILockingProvider;
 use OCP\Notification\IManager;
+use OCP\Security\Bruteforce\IThrottler;
 use PHPUnit\Framework\MockObject\MockObject;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Log\LoggerInterface;
@@ -148,6 +149,7 @@ class CheckSetupControllerTest extends TestCase {
 		$this->logger = $this->getMockBuilder(LoggerInterface::class)->getMock();
 		$this->db = $this->getMockBuilder(Connection::class)
 			->disableOriginalConstructor()->getMock();
+		$this->throttler = $this->createMock(IThrottler::class);
 		$this->lockingProvider = $this->getMockBuilder(ILockingProvider::class)->getMock();
 		$this->dateTimeFormatter = $this->getMockBuilder(IDateTimeFormatter::class)->getMock();
 		$this->memoryInfo = $this->getMockBuilder(MemoryInfo::class)
@@ -180,6 +182,7 @@ class CheckSetupControllerTest extends TestCase {
 				$this->secureRandom,
 				$this->iniGetWrapper,
 				$this->connection,
+				$this->throttler,
 				$this->tempManager,
 				$this->notificationManager,
 				$this->appManager,
@@ -665,6 +668,8 @@ class CheckSetupControllerTest extends TestCase {
 				'isFairUseOfFreePushService' => false,
 				'temporaryDirectoryWritable' => false,
 				\OCA\Settings\SetupChecks\LdapInvalidUuids::class => ['pass' => true, 'description' => 'Invalid UUIDs of LDAP users or groups have been found. Please review your "Override UUID detection" settings in the Expert part of the LDAP configuration and use "occ ldap:update-uuid" to update them.', 'severity' => 'warning'],
+				'isBruteforceThrottled' => false,
+				'bruteforceRemoteAddress' => '',
 			]
 		);
 		$this->assertEquals($expected, $this->checkSetupController->check());
@@ -690,6 +695,7 @@ class CheckSetupControllerTest extends TestCase {
 				$this->secureRandom,
 				$this->iniGetWrapper,
 				$this->connection,
+				$this->throttler,
 				$this->tempManager,
 				$this->notificationManager,
 				$this->appManager,
@@ -1455,6 +1461,7 @@ Array
 			$this->secureRandom,
 			$this->iniGetWrapper,
 			$this->connection,
+			$this->throttler,
 			$this->tempManager,
 			$this->notificationManager,
 			$this->appManager,
@@ -1510,6 +1517,7 @@ Array
 			$this->secureRandom,
 			$this->iniGetWrapper,
 			$this->connection,
+			$this->throttler,
 			$this->tempManager,
 			$this->notificationManager,
 			$this->appManager,
diff --git a/core/js/setupchecks.js b/core/js/setupchecks.js
index 4fb020e44a3..c3e892de294 100644
--- a/core/js/setupchecks.js
+++ b/core/js/setupchecks.js
@@ -215,6 +215,14 @@
 							type: OC.SetupChecks.MESSAGE_TYPE_INFO
 						});
 					}
+					if (data.isBruteforceThrottled) {
+						messages.push({
+							msg: t('core', 'Your remote address was identified as "{remoteAddress}" and is bruteforce throttled at the moment slowing down the performance of various requests. If the remote address is not your address this can be an indication that a proxy is not configured correctly. Further information can be found in the {linkstart}documentation ↗{linkend}.', { remoteAddress: data.bruteforceRemoteAddress })
+								.replace('{linkstart}', '<a target="_blank" rel="noreferrer noopener" class="external" href="' + data.reverseProxyDocs + '">')
+								.replace('{linkend}', '</a>'),
+							type: OC.SetupChecks.MESSAGE_TYPE_ERROR
+						});
+					}
 					if(!data.hasWorkingFileLocking) {
 						messages.push({
 							msg: t('core', 'Transactional file locking is disabled, this might lead to issues with race conditions. Enable "filelocking.enabled" in config.php to avoid these problems. See the {linkstart}documentation ↗{linkend} for more information.')
diff --git a/core/js/tests/specs/setupchecksSpec.js b/core/js/tests/specs/setupchecksSpec.js
index 43f42d2610e..163a21c46a7 100644
--- a/core/js/tests/specs/setupchecksSpec.js
+++ b/core/js/tests/specs/setupchecksSpec.js
@@ -814,6 +814,67 @@ describe('OC.SetupChecks tests', function() {
 			});
 		});
 
+		it('should return an error if the admin IP is bruteforce throttled', function(done) {
+			var async = OC.SetupChecks.checkSetup();
+
+			suite.server.requests[0].respond(
+				200,
+				{
+					'Content-Type': 'application/json',
+				},
+				JSON.stringify({
+					hasFileinfoInstalled: true,
+					isGetenvServerWorking: true,
+					isReadOnlyConfig: false,
+					wasEmailTestSuccessful: true,
+					hasWorkingFileLocking: true,
+					hasDBFileLocking: false,
+					hasValidTransactionIsolationLevel: true,
+					suggestedOverwriteCliURL: '',
+					isRandomnessSecure: true,
+					isFairUseOfFreePushService: true,
+					isBruteforceThrottled: true,
+					bruteforceRemoteAddress: '::1',
+					serverHasInternetConnectionProblems: false,
+					isMemcacheConfigured: true,
+					forwardedForHeadersWorking: true,
+					reverseProxyDocs: 'https://docs.nextcloud.com/foo/bar.html',
+					isCorrectMemcachedPHPModuleInstalled: true,
+					hasPassedCodeIntegrityCheck: true,
+					OpcacheSetupRecommendations: [],
+					isSettimelimitAvailable: true,
+					hasFreeTypeSupport: true,
+					missingIndexes: [],
+					missingPrimaryKeys: [],
+					missingColumns: [],
+					cronErrors: [],
+					cronInfo: {
+						diffInSeconds: 0
+					},
+					isMemoryLimitSufficient: true,
+					appDirsWithDifferentOwner: [],
+					isImagickEnabled: true,
+					areWebauthnExtensionsEnabled: true,
+					is64bit: true,
+					recommendedPHPModules: [],
+					pendingBigIntConversionColumns: [],
+					isMysqlUsedWithoutUTF8MB4: false,
+					isDefaultPhoneRegionSet: true,
+					isEnoughTempSpaceAvailableIfS3PrimaryStorageIsUsed: true,
+					reverseProxyGeneratedURL: 'https://server',
+					temporaryDirectoryWritable: true,
+				})
+			);
+
+			async.done(function( data, s, x ){
+				expect(data).toEqual([{
+					msg: 'Your remote address was identified as "::1" and is bruteforce throttled at the moment slowing down the performance of various requests. If the remote address is not your address this can be an indication that a proxy is not configured correctly. Further information can be found in the <a target="_blank" rel="noreferrer noopener" class="external" href="https://docs.nextcloud.com/foo/bar.html">documentation ↗</a>.',
+					type: OC.SetupChecks.MESSAGE_TYPE_ERROR
+				}]);
+				done();
+			});
+		});
+
 		it('should return an error if set_time_limit is unavailable', function(done) {
 			var async = OC.SetupChecks.checkSetup();