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/**
* 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.drill.exec.impersonation;
import com.google.common.base.Preconditions;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableMap;
import org.apache.commons.io.FileUtils;
import org.apache.drill.PlanTestBase;
import org.apache.drill.common.config.DrillConfig;
import org.apache.drill.exec.ExecConstants;
import org.apache.drill.exec.dotdrill.DotDrillType;
import org.apache.drill.exec.store.StoragePluginRegistry;
import org.apache.drill.exec.store.dfs.FileSystemConfig;
import org.apache.drill.exec.store.dfs.WorkspaceConfig;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.permission.FsPermission;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.security.UserGroupInformation;
import java.io.File;
import java.util.Map;
import java.util.Properties;
import static org.junit.Assert.assertEquals;
public class BaseTestImpersonation extends PlanTestBase {
protected static final String MINIDFS_STORAGE_PLUGIN_NAME = "miniDfsPlugin";
protected static final String processUser = System.getProperty("user.name");
protected static MiniDFSCluster dfsCluster;
protected static Configuration dfsConf;
protected static FileSystem fs;
protected static String miniDfsStoragePath;
// Test users and groups
protected static final String[] org1Users = { "user0_1", "user1_1", "user2_1", "user3_1", "user4_1", "user5_1" };
protected static final String[] org1Groups = { "group0_1", "group1_1", "group2_1", "group3_1", "group4_1", "group5_1" };
protected static final String[] org2Users = { "user0_2", "user1_2", "user2_2", "user3_2", "user4_2", "user5_2" };
protected static final String[] org2Groups = { "group0_2", "group1_2", "group2_2", "group3_2", "group4_2", "group5_2" };
static {
// "user0_1" belongs to "groups0_1". From "user1_1" onwards each user belongs to corresponding group and the group
// before it, i.e "user1_1" belongs to "group1_1" and "group0_1" and so on.
UserGroupInformation.createUserForTesting(org1Users[0], new String[]{org1Groups[0]});
for(int i=1; i<org1Users.length; i++) {
UserGroupInformation.createUserForTesting(org1Users[i], new String[] { org1Groups[i], org1Groups[i-1] });
}
UserGroupInformation.createUserForTesting(org2Users[0], new String[] { org2Groups[0] });
for(int i=1; i<org2Users.length; i++) {
UserGroupInformation.createUserForTesting(org2Users[i], new String[] { org2Groups[i], org2Groups[i-1] });
}
}
/**
* Start a MiniDFS cluster backed Drillbit cluster with impersonation enabled.
* @param testClass
* @throws Exception
*/
protected static void startMiniDfsCluster(String testClass) throws Exception {
startMiniDfsCluster(testClass, true);
}
/**
* Start a MiniDFS cluster backed Drillbit cluster
* @param testClass
* @param isImpersonationEnabled Enable impersonation in the cluster?
* @throws Exception
*/
protected static void startMiniDfsCluster(
final String testClass, final boolean isImpersonationEnabled) throws Exception {
Preconditions.checkArgument(!Strings.isNullOrEmpty(testClass), "Expected a non-null and non-empty test class name");
dfsConf = new Configuration();
// Set the MiniDfs base dir to be the temp directory of the test, so that all files created within the MiniDfs
// are properly cleanup when test exits.
miniDfsStoragePath = System.getProperty("java.io.tmpdir") + Path.SEPARATOR + testClass;
dfsConf.set("hdfs.minidfs.basedir", miniDfsStoragePath);
if (isImpersonationEnabled) {
// Set the proxyuser settings so that the user who is running the Drillbits/MiniDfs can impersonate other users.
dfsConf.set(String.format("hadoop.proxyuser.%s.hosts", processUser), "*");
dfsConf.set(String.format("hadoop.proxyuser.%s.groups", processUser), "*");
}
// Start the MiniDfs cluster
dfsCluster = new MiniDFSCluster.Builder(dfsConf)
.numDataNodes(3)
.format(true)
.build();
fs = dfsCluster.getFileSystem();
}
protected static void startDrillCluster(final boolean isImpersonationEnabled) throws Exception {
final Properties props = cloneDefaultTestConfigProperties();
props.setProperty(ExecConstants.IMPERSONATION_ENABLED, Boolean.toString(isImpersonationEnabled));
updateTestCluster(1, DrillConfig.create(props));
}
protected static void addMiniDfsBasedStorage(final Map<String, WorkspaceConfig> workspaces)
throws Exception {
// Create a HDFS based storage plugin based on local storage plugin and add it to plugin registry (connection string
// for mini dfs is varies for each run).
final StoragePluginRegistry pluginRegistry = getDrillbitContext().getStorage();
final FileSystemConfig lfsPluginConfig = (FileSystemConfig) pluginRegistry.getPlugin("dfs_test").getConfig();
final FileSystemConfig miniDfsPluginConfig = new FileSystemConfig();
miniDfsPluginConfig.connection = dfsConf.get(FileSystem.FS_DEFAULT_NAME_KEY);
createAndAddWorkspace("tmp", "/tmp", (short)0777, processUser, processUser, workspaces);
miniDfsPluginConfig.workspaces = workspaces;
miniDfsPluginConfig.formats = ImmutableMap.copyOf(lfsPluginConfig.formats);
miniDfsPluginConfig.setEnabled(true);
pluginRegistry.createOrUpdate(MINIDFS_STORAGE_PLUGIN_NAME, miniDfsPluginConfig, true);
}
protected static void createAndAddWorkspace(String name, String path, short permissions, String owner,
String group, final Map<String, WorkspaceConfig> workspaces) throws Exception {
final Path dirPath = new Path(path);
FileSystem.mkdirs(fs, dirPath, new FsPermission(permissions));
fs.setOwner(dirPath, owner, group);
final WorkspaceConfig ws = new WorkspaceConfig(path, true, "parquet");
workspaces.put(name, ws);
}
protected static void stopMiniDfsCluster() throws Exception {
if (dfsCluster != null) {
dfsCluster.shutdown();
dfsCluster = null;
}
if (miniDfsStoragePath != null) {
FileUtils.deleteQuietly(new File(miniDfsStoragePath));
}
}
// Return the user workspace for given user.
protected static String getWSSchema(String user) {
return MINIDFS_STORAGE_PLUGIN_NAME + "." + user;
}
protected static String getUserHome(String user) {
return "/user/" + user;
}
protected static void createView(final String viewOwner, final String viewGroup, final short viewPerms,
final String newViewName, final String fromSourceSchema, final String fromSourceTableName) throws Exception {
updateClient(viewOwner);
test(String.format("ALTER SESSION SET `%s`='%o';", ExecConstants.NEW_VIEW_DEFAULT_PERMS_KEY, viewPerms));
test(String.format("CREATE VIEW %s.%s AS SELECT * FROM %s.%s;",
getWSSchema(viewOwner), newViewName, fromSourceSchema, fromSourceTableName));
// Verify the view file created has the expected permissions and ownership
Path viewFilePath = new Path(getUserHome(viewOwner), newViewName + DotDrillType.VIEW.getEnding());
FileStatus status = fs.getFileStatus(viewFilePath);
assertEquals(viewGroup, status.getGroup());
assertEquals(viewOwner, status.getOwner());
assertEquals(viewPerms, status.getPermission().toShort());
}
protected static void createView(final String viewOwner, final String viewGroup, final String viewName,
final String viewDef) throws Exception {
updateClient(viewOwner);
test(String.format("ALTER SESSION SET `%s`='%o';", ExecConstants.NEW_VIEW_DEFAULT_PERMS_KEY, (short) 0750));
test("CREATE VIEW %s.%s.%s AS %s", MINIDFS_STORAGE_PLUGIN_NAME, "tmp", viewName, viewDef);
final Path viewFilePath = new Path("/tmp/", viewName + DotDrillType.VIEW.getEnding());
fs.setOwner(viewFilePath, viewOwner, viewGroup);
}
}
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