| /** |
| * 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.sentry.provider.db.generic; |
| |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.Arrays; |
| import java.util.Set; |
| |
| import com.google.common.base.Preconditions; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.sentry.core.common.exception.SentryUserException; |
| import org.apache.sentry.core.common.ActiveRoleSet; |
| import org.apache.sentry.core.common.Authorizable; |
| import org.apache.sentry.core.common.exception.SentryConfigurationException; |
| import org.apache.sentry.policy.common.Privilege; |
| import org.apache.sentry.provider.common.CacheProvider; |
| import org.apache.sentry.provider.common.ProviderBackend; |
| import org.apache.sentry.provider.common.ProviderBackendContext; |
| import org.apache.sentry.api.generic.thrift.SentryGenericServiceClient; |
| import org.apache.sentry.api.generic.thrift.SentryGenericServiceClientFactory; |
| import org.apache.sentry.api.generic.thrift.TSentryRole; |
| import org.apache.sentry.api.common.ApiConstants; |
| import org.apache.sentry.api.tools.TSentryPrivilegeConverter; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Sets; |
| |
| /** |
| * This class used when any component such as Hive, Solr or Sqoop want to integration with the Sentry service |
| */ |
| public class SentryGenericProviderBackend extends CacheProvider implements ProviderBackend { |
| private static final Logger LOGGER = LoggerFactory.getLogger(SentryGenericProviderBackend.class); |
| private final Configuration conf; |
| private volatile boolean initialized = false; |
| private String componentType; |
| private String serviceName; |
| private boolean enableCaching; |
| private String privilegeConverter; |
| |
| // ProviderBackend should have the same construct to support the reflect in authBinding, |
| // eg:SqoopAuthBinding |
| public SentryGenericProviderBackend(Configuration conf, String resource) //NOPMD |
| throws Exception { |
| this.conf = conf; |
| this.enableCaching = conf.getBoolean(ApiConstants.ClientConfig.ENABLE_CACHING, ApiConstants.ClientConfig.ENABLE_CACHING_DEFAULT); |
| this.privilegeConverter = conf.get(ApiConstants.ClientConfig.PRIVILEGE_CONVERTER); |
| this.setServiceName(conf.get(ApiConstants.ClientConfig.SERVICE_NAME)); |
| this.setComponentType(conf.get(ApiConstants.ClientConfig.COMPONENT_TYPE)); |
| } |
| |
| @Override |
| public void initialize(ProviderBackendContext context) { |
| if (initialized) { |
| throw new IllegalStateException("SentryGenericProviderBackend has already been initialized, cannot be initialized twice"); |
| } |
| |
| Preconditions.checkNotNull(serviceName, "Service name is not defined. Use configuration parameter: " + conf.get(ApiConstants.ClientConfig.SERVICE_NAME)); |
| Preconditions.checkNotNull(componentType, "Component type is not defined. Use configuration parameter: " + conf.get(ApiConstants.ClientConfig.COMPONENT_TYPE)); |
| |
| if (enableCaching) { |
| if (privilegeConverter == null) { |
| throw new SentryConfigurationException(ApiConstants.ClientConfig.PRIVILEGE_CONVERTER + " not configured."); |
| } |
| |
| Constructor<?> privilegeConverterConstructor; |
| TSentryPrivilegeConverter sentryPrivilegeConverter; |
| try { |
| privilegeConverterConstructor = Class.forName(privilegeConverter).getDeclaredConstructor(String.class, String.class); |
| privilegeConverterConstructor.setAccessible(true); |
| sentryPrivilegeConverter = (TSentryPrivilegeConverter) privilegeConverterConstructor.newInstance(getComponentType(), getServiceName()); |
| } catch (NoSuchMethodException | ClassNotFoundException | InstantiationException | InvocationTargetException | IllegalAccessException e) { |
| throw new RuntimeException("Failed to create privilege converter of type " + privilegeConverter, e); |
| } |
| LOGGER.debug("Starting Updateable Cache"); |
| UpdatableCache cache = new UpdatableCache(conf, getComponentType(), getServiceName(), sentryPrivilegeConverter); |
| try { |
| cache.startUpdateThread(true); |
| } catch (Exception e) { |
| throw new RuntimeException("Failed to get privileges from Sentry to build cache.", e); |
| } |
| super.initialize(cache); |
| } |
| this.initialized = true; |
| } |
| |
| /** |
| * The Sentry-296(generate client for connection pooling) has already finished development and reviewed by now. When it |
| * was committed to master, the getClient method was needed to refactor using the connection pool |
| */ |
| private SentryGenericServiceClient getClient() throws Exception { |
| return SentryGenericServiceClientFactory.create(conf); |
| } |
| |
| @Override |
| public ImmutableSet<String> getPrivileges(Set<String> groups, |
| ActiveRoleSet roleSet, Authorizable... authorizableHierarchy) { |
| if (!initialized) { |
| throw new IllegalStateException("SentryGenericProviderBackend has not been properly initialized"); |
| } |
| if (enableCaching) { |
| return super.getPrivileges(groups, roleSet, authorizableHierarchy); |
| } else { |
| try (SentryGenericServiceClient client = getClient()){ |
| return ImmutableSet.copyOf(client.listPrivilegesForProvider(componentType, serviceName, |
| roleSet, groups, Arrays.asList(authorizableHierarchy))); |
| } catch (SentryUserException e) { |
| String msg = "Unable to obtain privileges from server: " + e.getMessage(); |
| LOGGER.error(msg, e); |
| } catch (Exception e) { |
| String msg = "Unable to obtain client:" + e.getMessage(); |
| LOGGER.error(msg, e); |
| } |
| } |
| return ImmutableSet.of(); |
| } |
| |
| @Override |
| public ImmutableSet<Privilege> getPrivilegeObjects(Set<String> groups, Set<String> users, |
| ActiveRoleSet roleSet, Authorizable... authorizableHierarchy) { |
| if (!initialized) { |
| throw new IllegalStateException("SentryGenericProviderBackend has not been properly initialized"); |
| } |
| if (enableCaching) { |
| return super.getPrivilegeObjects(groups, users, roleSet, authorizableHierarchy); |
| } |
| |
| // let caller call getPrivileges() then convert the privilege from string to object |
| return ImmutableSet.of(); |
| } |
| |
| @Override |
| public ImmutableSet<String> getRoles(Set<String> groups, ActiveRoleSet roleSet) { |
| if (!initialized) { |
| throw new IllegalStateException("SentryGenericProviderBackend has not been properly initialized"); |
| } |
| if (enableCaching) { |
| return super.getRoles(groups, roleSet); |
| } else { |
| try (SentryGenericServiceClient client = getClient()){ |
| Set<TSentryRole> tRoles = Sets.newHashSet(); |
| //get the roles according to group |
| String requestor = UserGroupInformation.getCurrentUser().getShortUserName(); |
| for (String group : groups) { |
| tRoles.addAll(client.listRolesByGroupName(requestor, group, getComponentType())); |
| } |
| Set<String> roles = Sets.newHashSet(); |
| for (TSentryRole tRole : tRoles) { |
| roles.add(tRole.getRoleName()); |
| } |
| return ImmutableSet.copyOf(roleSet.isAll() ? roles : Sets.intersection(roles, roleSet.getRoles())); |
| } catch (SentryUserException e) { |
| String msg = "Unable to obtain roles from server: " + e.getMessage(); |
| LOGGER.error(msg, e); |
| } catch (Exception e) { |
| String msg = "Unable to obtain client:" + e.getMessage(); |
| LOGGER.error(msg, e); |
| } |
| return ImmutableSet.of(); |
| } |
| } |
| |
| /** |
| * SentryGenericProviderBackend does nothing in the validatePolicy() |
| */ |
| @Override |
| public void validatePolicy(boolean strictValidation) |
| throws SentryConfigurationException { |
| if (!initialized) { |
| throw new IllegalStateException("SentryGenericProviderBackend has not been properly initialized"); |
| } |
| } |
| |
| @Override |
| public ImmutableSet<String> getPrivileges(Set<String> groups, Set<String> users, |
| ActiveRoleSet roleSet, Authorizable... authorizableHierarchy) { |
| // SentryGenericProviderBackend doesn't support getPrivileges for user now. |
| return getPrivileges(groups, roleSet); |
| } |
| |
| @Override |
| public void close() { |
| } |
| |
| public void setComponentType(String componentType) { |
| this.componentType = componentType; |
| } |
| |
| public String getComponentType() { |
| return componentType; |
| } |
| |
| public String getServiceName() { |
| return serviceName; |
| } |
| |
| public void setServiceName(String serviceName) { |
| this.serviceName = serviceName; |
| } |
| } |