content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.cassandra.tools.nodetool;
  
  import java.util.Set;
  import javax.security.auth.Subject;
  
  import org.junit.Before;
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import org.apache.cassandra.auth.AuthCacheService;
  import org.apache.cassandra.auth.AuthTestUtils;
  import org.apache.cassandra.auth.AuthenticatedUser;
  import org.apache.cassandra.auth.CassandraPrincipal;
  import org.apache.cassandra.auth.IAuthorizer;
  import org.apache.cassandra.auth.IRoleManager;
  import org.apache.cassandra.auth.JMXResource;
  import org.apache.cassandra.auth.Permission;
  import org.apache.cassandra.auth.jmx.AuthorizationProxy;
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.cql3.CQLTester;
  import org.apache.cassandra.tools.ToolRunner;
  
  import static org.apache.cassandra.auth.AuthTestUtils.ROLE_A;
  import static org.apache.cassandra.auth.AuthTestUtils.ROLE_B;
  import static org.apache.cassandra.auth.AuthTestUtils.getRolePermissionsReadCount;
  import static org.assertj.core.api.Assertions.assertThat;
  
  /**
   * @see InvalidateJmxPermissionsCache
   */
  public class InvalidateJmxPermissionsCacheTest extends CQLTester
  {
      private static final AuthorizationProxy authorizationProxy = new AuthTestUtils.NoAuthSetupAuthorizationProxy();
  
      @BeforeClass
      public static void setup() throws Exception
      {
          CQLTester.requireAuthentication();
          IRoleManager roleManager = DatabaseDescriptor.getRoleManager();
          roleManager.createRole(AuthenticatedUser.SYSTEM_USER, ROLE_A, AuthTestUtils.getLoginRoleOptions());
          roleManager.createRole(AuthenticatedUser.SYSTEM_USER, ROLE_B, AuthTestUtils.getLoginRoleOptions());
          AuthCacheService.initializeAndRegisterCaches();
          requireNetwork();
          startJMXServer();
      }
  
      @Before
      public void grantInitialPermissions()
      {
          // Because we reset the CMS in CQLTester::afterTest, the per-test keyspaces created in CQLTester::beforeTest
          // get dropped and re-created for every individual test. This means we need to recreate the perms here (we
          // could markCMS() after granting the first time and add a flag to avoid re-granting but this is simpler).
          JMXResource rootJmxResource = JMXResource.root();
          Set<Permission> jmxPermissions = rootJmxResource.applicablePermissions();
          IAuthorizer authorizer = DatabaseDescriptor.getAuthorizer();
          authorizer.grant(AuthenticatedUser.SYSTEM_USER, jmxPermissions, rootJmxResource, ROLE_A);
          authorizer.grant(AuthenticatedUser.SYSTEM_USER, jmxPermissions, rootJmxResource, ROLE_B);
      }
  
      @Test
      public void testInvalidateSingleJMXPermission()
      {
          Subject userSubject = subject(ROLE_A.getRoleName());
  
          // cache role permission
          authorizationProxy.authorize(userSubject, "queryNames", null);
          long originalReadsCount = getRolePermissionsReadCount();
  
          // enure role permission is cached
          assertThat(authorizationProxy.authorize(userSubject, "queryNames", null)).isTrue();
          assertThat(originalReadsCount).isEqualTo(getRolePermissionsReadCount());
  
          // invalidate role permission
          ToolRunner.ToolResult tool = ToolRunner.invokeNodetool("invalidatejmxpermissionscache", ROLE_A.getRoleName());
          tool.assertOnCleanExit();
          assertThat(tool.getStdout()).isEmpty();
  
          // ensure role permission is reloaded
          assertThat(authorizationProxy.authorize(userSubject, "queryNames", null)).isTrue();
          assertThat(originalReadsCount).isLessThan(getRolePermissionsReadCount());
      }
  
      @Test
      public void testInvalidateAllJMXPermissions()
      {
          Subject roleASubject = subject(ROLE_A.getRoleName());
          Subject roleBSubject = subject(ROLE_B.getRoleName());
  
          // cache role permissions
          authorizationProxy.authorize(roleASubject, "queryNames", null);
          authorizationProxy.authorize(roleBSubject, "queryNames", null);
          long originalReadsCount = getRolePermissionsReadCount();
  
          // enure role permissions are cached
          assertThat(authorizationProxy.authorize(roleASubject, "queryNames", null)).isTrue();
          assertThat(authorizationProxy.authorize(roleBSubject, "queryNames", null)).isTrue();
          assertThat(originalReadsCount).isEqualTo(getRolePermissionsReadCount());
  
          // invalidate both role permissions
          ToolRunner.ToolResult tool = ToolRunner.invokeNodetool("invalidatejmxpermissionscache");
          tool.assertOnCleanExit();
          assertThat(tool.getStdout()).isEmpty();
  
          // ensure role permission for roleA is reloaded
          assertThat(authorizationProxy.authorize(roleASubject, "queryNames", null)).isTrue();
          long readsCountAfterFirstReLoad = getRolePermissionsReadCount();
          assertThat(originalReadsCount).isLessThan(readsCountAfterFirstReLoad);
  
          // ensure role permission for roleB is reloaded
          assertThat(authorizationProxy.authorize(roleBSubject, "queryNames", null)).isTrue();
          long readsCountAfterSecondReLoad = getRolePermissionsReadCount();
          assertThat(readsCountAfterFirstReLoad).isLessThan(readsCountAfterSecondReLoad);
      }
  
      private static Subject subject(String roleName)
      {
          Subject subject = new Subject();
          subject.getPrincipals().add(new CassandraPrincipal(roleName));
          return subject;
      }
  
  }
  