/*
* 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.test.randomwalk.concurrent;
import java.util.ArrayList;
import java.util.EnumSet;
import java.util.List;
import java.util.Properties;
import java.util.Random;
import org.apache.accumulo.core.client.AccumuloException;
import org.apache.accumulo.core.client.AccumuloSecurityException;
import org.apache.accumulo.core.client.Connector;
import org.apache.accumulo.core.client.impl.thrift.TableOperationExceptionType;
import org.apache.accumulo.core.client.impl.thrift.ThriftTableOperationException;
import org.apache.accumulo.core.security.SystemPermission;
import org.apache.accumulo.core.security.NamespacePermission;
import org.apache.accumulo.core.security.TablePermission;
import org.apache.accumulo.test.randomwalk.State;
import org.apache.accumulo.test.randomwalk.Test;
public class ChangePermissions extends Test {
@Override
public void visit(State state, Properties props) throws Exception {
Connector conn = state.getConnector();
Random rand = (Random) state.get("rand");
@SuppressWarnings("unchecked")
List<String> userNames = (List<String>) state.get("users");
String userName = userNames.get(rand.nextInt(userNames.size()));
@SuppressWarnings("unchecked")
List<String> tableNames = (List<String>) state.get("tables");
String tableName = tableNames.get(rand.nextInt(tableNames.size()));
@SuppressWarnings("unchecked")
List<String> namespaces = (List<String>) state.get("namespaces");
String namespace = namespaces.get(rand.nextInt(namespaces.size()));
try {
int dice = rand.nextInt(3);
if (dice == 0)
changeSystemPermission(conn, rand, userName);
else if (dice == 1)
changeTablePermission(conn, rand, userName, tableName);
else if (dice == 2)
changeNamespacePermission(conn, rand, userName, namespace);
} catch (AccumuloSecurityException ex) {
log.debug("Unable to change user permissions: " + ex.getCause());
} catch (AccumuloException ex) {
Throwable cause = ex.getCause();
if (cause != null && cause instanceof ThriftTableOperationException) {
ThriftTableOperationException toe = (ThriftTableOperationException)cause.getCause();
if (toe.type == TableOperationExceptionType.NAMESPACE_NOTFOUND) {
log.debug("Unable to change user permissions: " + toe);
return;
}
}
}
}
private void changeTablePermission(Connector conn, Random rand, String userName, String tableName) throws AccumuloException, AccumuloSecurityException {
EnumSet<TablePermission> perms = EnumSet.noneOf(TablePermission.class);
for (TablePermission p : TablePermission.values()) {
if (conn.securityOperations().hasTablePermission(userName, tableName, p))
perms.add(p);
}
EnumSet<TablePermission> more = EnumSet.allOf(TablePermission.class);
more.removeAll(perms);
if (rand.nextBoolean() && more.size() > 0) {
List<TablePermission> moreList = new ArrayList<TablePermission>(more);
TablePermission choice = moreList.get(rand.nextInt(moreList.size()));
log.debug("adding permission " + choice);
conn.securityOperations().grantTablePermission(userName, tableName, choice);
} else {
if (perms.size() > 0) {
List<TablePermission> permList = new ArrayList<TablePermission>(perms);
TablePermission choice = permList.get(rand.nextInt(permList.size()));
log.debug("removing permission " + choice);
conn.securityOperations().revokeTablePermission(userName, tableName, choice);
}
}
}
private void changeSystemPermission(Connector conn, Random rand, String userName) throws AccumuloException, AccumuloSecurityException {
EnumSet<SystemPermission> perms = EnumSet.noneOf(SystemPermission.class);
for (SystemPermission p : SystemPermission.values()) {
if (conn.securityOperations().hasSystemPermission(userName, p))
perms.add(p);
}
EnumSet<SystemPermission> more = EnumSet.allOf(SystemPermission.class);
more.removeAll(perms);
more.remove(SystemPermission.GRANT);
if (rand.nextBoolean() && more.size() > 0) {
List<SystemPermission> moreList = new ArrayList<SystemPermission>(more);
SystemPermission choice = moreList.get(rand.nextInt(moreList.size()));
log.debug("adding permission " + choice);
conn.securityOperations().grantSystemPermission(userName, choice);
} else {
if (perms.size() > 0) {
List<SystemPermission> permList = new ArrayList<SystemPermission>(perms);
SystemPermission choice = permList.get(rand.nextInt(permList.size()));
log.debug("removing permission " + choice);
conn.securityOperations().revokeSystemPermission(userName, choice);
}
}
}
private void changeNamespacePermission(Connector conn, Random rand, String userName, String namespace) throws AccumuloException, AccumuloSecurityException {
EnumSet<NamespacePermission> perms = EnumSet.noneOf(NamespacePermission.class);
for (NamespacePermission p : NamespacePermission.values()) {
if (conn.securityOperations().hasNamespacePermission(userName, namespace, p))
perms.add(p);
}
EnumSet<NamespacePermission> more = EnumSet.allOf(NamespacePermission.class);
more.removeAll(perms);
if (rand.nextBoolean() && more.size() > 0) {
List<NamespacePermission> moreList = new ArrayList<NamespacePermission>(more);
NamespacePermission choice = moreList.get(rand.nextInt(moreList.size()));
log.debug("adding permission " + choice);
conn.securityOperations().grantNamespacePermission(userName, namespace, choice);
} else {
if (perms.size() > 0) {
List<NamespacePermission> permList = new ArrayList<NamespacePermission>(perms);
NamespacePermission choice = permList.get(rand.nextInt(permList.size()));
log.debug("removing permission " + choice);
conn.securityOperations().revokeNamespacePermission(userName, namespace, choice);
}
}
}
}