src/main/java/org/apache/accumulo/testing/randomwalk/security/DropUser.java

/*
 * 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.accumulo.testing.randomwalk.security;

import java.util.Properties;

import org.apache.accumulo.core.client.AccumuloClient;
import org.apache.accumulo.core.client.AccumuloException;
import org.apache.accumulo.core.client.AccumuloSecurityException;
import org.apache.accumulo.core.security.SystemPermission;
import org.apache.accumulo.testing.randomwalk.RandWalkEnv;
import org.apache.accumulo.testing.randomwalk.State;
import org.apache.accumulo.testing.randomwalk.Test;

public class DropUser extends Test {

  @Override
  public void visit(State state, RandWalkEnv env, Properties props) throws Exception {
    String sysPrincipal = WalkingSecurity.get(state, env).getSysUserName();
    try (AccumuloClient client = env.createClient(sysPrincipal,
        WalkingSecurity.get(state, env).getSysToken())) {

      String tableUserName = WalkingSecurity.get(state, env).getTabUserName();

      boolean exists = WalkingSecurity.get(state, env).userExists(tableUserName);
      boolean hasPermission = client.securityOperations().hasSystemPermission(sysPrincipal,
          SystemPermission.DROP_USER);

      try {
        client.securityOperations().dropLocalUser(tableUserName);
      } catch (AccumuloSecurityException ae) {
        switch (ae.getSecurityErrorCode()) {
          case PERMISSION_DENIED:
            if (hasPermission)
              throw new AccumuloException(
                  "Got a security exception when I should have had permission.", ae);
            else {
              if (exists) {
                env.getAccumuloClient().securityOperations().dropLocalUser(tableUserName);
                WalkingSecurity.get(state, env).dropUser(tableUserName);
              }
              return;
            }

          case USER_DOESNT_EXIST:
            if (exists)
              throw new AccumuloException("Got user DNE exception when user should exists.", ae);
            else
              return;
          default:
            throw new AccumuloException("Got unexpected exception", ae);
        }
      }
      WalkingSecurity.get(state, env).dropUser(tableUserName);
      Thread.sleep(1000);
      if (!hasPermission)
        throw new AccumuloException("Didn't get Security Exception when we should have");
    }
  }
}