1 files changed, 166 insertions, 0 deletions
diff --git a/apps/dav/tests/unit/CalDAV/Security/RateLimitingPluginTest.php b/apps/dav/tests/unit/CalDAV/Security/RateLimitingPluginTest.php
new file mode 100644
index 00000000000..a63b74e00dc
--- /dev/null
+++ b/apps/dav/tests/unit/CalDAV/Security/RateLimitingPluginTest.php
@@ -0,0 +1,166 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * @copyright 2023 Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @author 2023 Christoph Wurst <christoph@winzerhof-wurst.at>
+ *
+ * @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\DAV\Tests\unit\CalDAV\Security;
+
+use OC\Security\RateLimiting\Exception\RateLimitExceededException;
+use OC\Security\RateLimiting\Limiter;
+use OCA\DAV\CalDAV\CalDavBackend;
+use OCA\DAV\CalDAV\Security\RateLimitingPlugin;
+use OCA\DAV\Connector\Sabre\Exception\TooManyRequests;
+use OCP\IConfig;
+use OCP\IUser;
+use OCP\IUserManager;
+use PHPUnit\Framework\MockObject\MockObject;
+use Psr\Log\LoggerInterface;
+use Sabre\DAV\Exception\Forbidden;
+use Test\TestCase;
+
+class RateLimitingPluginTest extends TestCase {
+
+	private Limiter|MockObject $limiter;
+	private CalDavBackend|MockObject $caldavBackend;
+	private IUserManager|MockObject $userManager;
+	private LoggerInterface|MockObject $logger;
+	private IConfig|MockObject $config;
+	private string $userId = 'user123';
+	private RateLimitingPlugin $plugin;
+
+	protected function setUp(): void {
+		parent::setUp();
+
+		$this->limiter = $this->createMock(Limiter::class);
+		$this->userManager = $this->createMock(IUserManager::class);
+		$this->caldavBackend = $this->createMock(CalDavBackend::class);
+		$this->logger = $this->createMock(LoggerInterface::class);
+		$this->config = $this->createMock(IConfig::class);
+		$this->plugin = new RateLimitingPlugin(
+			$this->limiter,
+			$this->userManager,
+			$this->caldavBackend,
+			$this->logger,
+			$this->config,
+			$this->userId,
+		);
+	}
+
+	public function testNoUserObject(): void {
+		$this->limiter->expects(self::never())
+			->method('registerUserRequest');
+
+		$this->plugin->beforeBind('calendars/foo/cal');
+	}
+
+	public function testUnrelated(): void {
+		$user = $this->createMock(IUser::class);
+		$this->userManager->expects(self::once())
+			->method('get')
+			->with($this->userId)
+			->willReturn($user);
+		$this->limiter->expects(self::never())
+			->method('registerUserRequest');
+
+		$this->plugin->beforeBind('foo/bar');
+	}
+
+	public function testRegisterCalendarCreation(): void {
+		$user = $this->createMock(IUser::class);
+		$this->userManager->expects(self::once())
+			->method('get')
+			->with($this->userId)
+			->willReturn($user);
+		$this->config
+			->method('getAppValue')
+			->with('dav')
+			->willReturnArgument(2);
+		$this->limiter->expects(self::once())
+			->method('registerUserRequest')
+			->with(
+				'caldav-create-calendar',
+				10,
+				3600,
+				$user,
+			);
+
+		$this->plugin->beforeBind('calendars/foo/cal');
+	}
+
+	public function testCalendarCreationRateLimitExceeded(): void {
+		$user = $this->createMock(IUser::class);
+		$this->userManager->expects(self::once())
+			->method('get')
+			->with($this->userId)
+			->willReturn($user);
+		$this->config
+			->method('getAppValue')
+			->with('dav')
+			->willReturnArgument(2);
+		$this->limiter->expects(self::once())
+			->method('registerUserRequest')
+			->with(
+				'caldav-create-calendar',
+				10,
+				3600,
+				$user,
+			)
+			->willThrowException(new RateLimitExceededException());
+		$this->expectException(TooManyRequests::class);
+
+		$this->plugin->beforeBind('calendars/foo/cal');
+	}
+
+	public function testCalendarLimitReached(): void {
+		$user = $this->createMock(IUser::class);
+		$this->userManager->expects(self::once())
+			->method('get')
+			->with($this->userId)
+			->willReturn($user);
+		$user->method('getUID')->willReturn('user123');
+		$this->config
+			->method('getAppValue')
+			->with('dav')
+			->willReturnArgument(2);
+		$this->limiter->expects(self::once())
+			->method('registerUserRequest')
+			->with(
+				'caldav-create-calendar',
+				10,
+				3600,
+				$user,
+			);
+		$this->caldavBackend->expects(self::once())
+			->method('getCalendarsForUserCount')
+			->with('principals/users/user123')
+			->willReturn(27);
+		$this->caldavBackend->expects(self::once())
+			->method('getSubscriptionsForUserCount')
+			->with('principals/users/user123')
+			->willReturn(3);
+		$this->expectException(Forbidden::class);
+
+		$this->plugin->beforeBind('calendars/foo/cal');
+	}
+
+}