Added: lucene/hadoop/trunk/src/test/org/apache/hadoop/security/TestPermission.java URL: http://svn.apache.org/viewvc/lucene/hadoop/trunk/src/test/org/apache/hadoop/security/TestPermission.java?rev=609029&view=auto ============================================================================== --- lucene/hadoop/trunk/src/test/org/apache/hadoop/security/TestPermission.java (added) +++ lucene/hadoop/trunk/src/test/org/apache/hadoop/security/TestPermission.java Fri Jan 4 14:12:15 2008 @@ -0,0 +1,177 @@ +/** + * 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.security; + +import java.io.IOException; +import java.util.Random; + +import org.apache.commons.logging.Log; +import org.apache.commons.logging.LogFactory; +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.dfs.MiniDFSCluster; +import org.apache.hadoop.fs.*; +import org.apache.hadoop.fs.permission.*; +import org.apache.hadoop.ipc.RemoteException; + +import junit.framework.TestCase; + +/** Unit tests for permission */ +public class TestPermission extends TestCase { + public static final Log LOG = LogFactory.getLog(TestPermission.class); + + final private static Path ROOT_PATH = new Path("/data"); + final private static Path CHILD_DIR1 = new Path(ROOT_PATH, "web1"); + final private static Path CHILD_DIR2 = new Path(ROOT_PATH, "web2"); + final private static Path CHILD_FILE1 = new Path(ROOT_PATH, "file1"); + final private static Path CHILD_FILE2 = new Path(ROOT_PATH, "file2"); + + final private static int FILE_LEN = 100; + final private static String PERMISSION_EXCEPTION_NAME = + AccessControlException.class.getName(); + + final private static String USER_NAME = "Who"; + final private static String GROUP1_NAME = "group1"; + final private static String GROUP2_NAME = "group2"; + final private static String[] GROUP_NAMES = {GROUP1_NAME, GROUP2_NAME}; + + static FsPermission checkPermission(FileSystem fs, + String path, FsPermission expected) throws IOException { + FileStatus s = fs.getFileStatus(new Path(path)); + LOG.info(s.getPath() + ": " + s.isDir() + " " + s.getPermission() + + ":" + s.getOwner() + ":" + s.getGroup()); + if (expected != null) { + assertEquals(expected, s.getPermission()); + assertEquals(expected.toShort(), s.getPermission().toShort()); + } + return s.getPermission(); + } + + public void testCreate() throws Exception { + Configuration conf = new Configuration(); + conf.setBoolean("dfs.permissions", true); + conf.setInt(FsPermission.UMASK_LABEL, 0); + MiniDFSCluster cluster = new MiniDFSCluster(conf, 3, true, null); + cluster.waitActive(); + FileSystem fs = FileSystem.get(conf); + + try { + FsPermission rootPerm = checkPermission(fs, "/", null); + FsPermission inheritPerm = FsPermission.createImmutable( + (short)(rootPerm.toShort() | 0300)); + + FsPermission dirPerm = new FsPermission((short)0777); + fs.mkdirs(new Path("/a1/a2/a3"), dirPerm); + checkPermission(fs, "/a1", inheritPerm); + checkPermission(fs, "/a1/a2", inheritPerm); + checkPermission(fs, "/a1/a2/a3", dirPerm); + + FsPermission filePerm = new FsPermission((short)0444); + FSDataOutputStream out = fs.create(new Path("/b1/b2/b3.txt"), filePerm, + true, conf.getInt("io.file.buffer.size", 4096), + fs.getDefaultReplication(), fs.getDefaultBlockSize(), null); + out.write(123); + out.close(); + checkPermission(fs, "/b1", inheritPerm); + checkPermission(fs, "/b1/b2", inheritPerm); + checkPermission(fs, "/b1/b2/b3.txt", filePerm); + } + finally { + try{fs.close();} catch(Exception e) {} + try{cluster.shutdown();} catch(Exception e) {} + } + } + + public void testFilePermision() throws Exception { + Configuration conf = new Configuration(); + conf.setBoolean("dfs.permissions", true); + MiniDFSCluster cluster = new MiniDFSCluster(conf, 3, true, null); + cluster.waitActive(); + FileSystem fs = FileSystem.get(conf); + + try { + // following dir/file creations are legal + fs.mkdirs(CHILD_DIR1); + FSDataOutputStream out = fs.create(CHILD_FILE1); + byte data[] = new byte[FILE_LEN]; + Random r = new Random(); + r.nextBytes(data); + out.write(data); + out.close(); + fs.setPermission(CHILD_FILE1, new FsPermission((short)0700)); + + // following read is legal + byte dataIn[] = new byte[FILE_LEN]; + FSDataInputStream fin = fs.open(CHILD_FILE1); + fin.read(dataIn); + for(int i=0; i<FILE_LEN; i++) { + assertEquals(data[i], dataIn[i]); + } + fs.close(); + + // test illegal file/dir creation + UnixUserGroupInformation userGroupInfo = new UnixUserGroupInformation( + USER_NAME, GROUP_NAMES ); + conf.set(UnixUserGroupInformation.UGI_PROPERTY_NAME, + userGroupInfo.toString()); + fs = FileSystem.get(conf); + + // illegal mkdir + assertTrue(!canMkdirs(fs, CHILD_DIR2)); + + // illegal file creation + assertTrue(!canCreate(fs, CHILD_FILE2)); + + // illegal file open + assertTrue(!canOpen(fs, CHILD_FILE1)); + } + finally { + try{fs.close();} catch(Exception e) {} + try{cluster.shutdown();} catch(Exception e) {} + } + } + + static boolean canMkdirs(FileSystem fs, Path p) throws IOException { + try { + fs.mkdirs(p); + return true; + } catch(RemoteException e) { + assertEquals(PERMISSION_EXCEPTION_NAME, e.getClassName()); + return false; + } + } + + static boolean canCreate(FileSystem fs, Path p) throws IOException { + try { + fs.create(p); + return true; + } catch(RemoteException e) { + assertEquals(PERMISSION_EXCEPTION_NAME, e.getClassName()); + return false; + } + } + + static boolean canOpen(FileSystem fs, Path p) throws IOException { + try { + fs.open(p); + return true; + } catch(RemoteException e) { + assertEquals(PERMISSION_EXCEPTION_NAME, e.getClassName()); + return false; + } + } +}
