hadoop ConfiguredYarnAuthorizer 源码

haddop ConfiguredYarnAuthorizer 代码

文件路径：/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/security/ConfiguredYarnAuthorizer.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.hadoop.yarn.security;

import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.locks.ReentrantReadWriteLock;

import org.apache.hadoop.classification.InterfaceAudience.Private;
import org.apache.hadoop.classification.InterfaceStability.Unstable;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.security.authorize.AccessControlList;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.security.PrivilegedEntity.EntityType;

/**
 * A YarnAuthorizationProvider implementation based on configuration files.
 *
 */
@Private
@Unstable
public class ConfiguredYarnAuthorizer extends YarnAuthorizationProvider {

  private final ConcurrentMap<PrivilegedEntity, Map<AccessType, AccessControlList>>
      allAcls = new ConcurrentHashMap<>();
  private volatile AccessControlList adminAcl = null;
  private final ReentrantReadWriteLock lock = new ReentrantReadWriteLock();
  private final ReentrantReadWriteLock.ReadLock readLock = lock.readLock();
  private final ReentrantReadWriteLock.WriteLock writeLock =  lock.writeLock();

  @Override
  public void init(Configuration conf) {
    adminAcl =
        new AccessControlList(conf.get(YarnConfiguration.YARN_ADMIN_ACL,
          YarnConfiguration.DEFAULT_YARN_ADMIN_ACL));
  }

  @Override
  public void setPermission(List<Permission> permissions,
      UserGroupInformation user) {
    writeLock.lock();
    try {
      for (Permission perm : permissions) {
        allAcls.put(perm.getTarget(), perm.getAcls());
      }
    } finally {
      writeLock.unlock();
    }
  }

  private boolean checkPermissionInternal(AccessType accessType,
      PrivilegedEntity target, UserGroupInformation user) {
    boolean ret = false;
    Map<AccessType, AccessControlList> acls = allAcls.get(target);
    if (acls != null) {
      AccessControlList list = acls.get(accessType);
      if (list != null) {
        ret = list.isUserAllowed(user);
      }
    }

    // recursively look up the queue to see if parent queue has the permission.
    if (target.getType() == EntityType.QUEUE && !ret) {
      String queueName = target.getName();
      if (!queueName.contains(".")) {
        return ret;
      }
      String parentQueueName =
          queueName.substring(0, queueName.lastIndexOf("."));
      return checkPermissionInternal(accessType,
          new PrivilegedEntity(target.getType(), parentQueueName), user);
    }
    return ret;
  }

  @Override
  public boolean checkPermission(AccessRequest accessRequest) {
    readLock.lock();
    try {
      return checkPermissionInternal(accessRequest.getAccessType(),
          accessRequest.getEntity(), accessRequest.getUser());
    } finally {
      readLock.unlock();
    }
  }

  @Override
  public void setAdmins(AccessControlList acls, UserGroupInformation ugi) {
    adminAcl = acls;
  }

  @Override
  public boolean isAdmin(UserGroupInformation ugi) {
    return adminAcl.isUserAllowed(ugi);
  }

  public AccessControlList getAdminAcls() {
    return this.adminAcl;
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop AMRMTokenIdentifier 源码

hadoop AMRMTokenSelector 源码

hadoop AccessRequest 源码

hadoop AccessType 源码

hadoop AdminACLsManager 源码

hadoop ContainerManagerSecurityInfo 源码

hadoop ContainerTokenIdentifier 源码

hadoop ContainerTokenSelector 源码

hadoop DockerCredentialTokenIdentifier 源码

hadoop NMTokenIdentifier 源码