1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.apache.hadoop.fs; 19 20 import static org.junit.Assert.fail; 21 22 import java.io.IOException; 23 24 import org.apache.hadoop.conf.Configuration; 25 import org.apache.hadoop.hdfs.DFSTestUtil; 26 import org.apache.hadoop.hdfs.DistributedFileSystem; 27 import org.apache.hadoop.hdfs.HdfsConfiguration; 28 import org.apache.hadoop.hdfs.MiniDFSCluster; 29 import org.apache.hadoop.test.GenericTestUtils; 30 import org.junit.Test; 31 32 public class TestSymlinkHdfsDisable { 33 34 @Test(timeout=60000) testSymlinkHdfsDisable()35 public void testSymlinkHdfsDisable() throws Exception { 36 Configuration conf = new HdfsConfiguration(); 37 // disable symlink resolution 38 conf.setBoolean( 39 CommonConfigurationKeys.FS_CLIENT_RESOLVE_REMOTE_SYMLINKS_KEY, false); 40 // spin up minicluster, get dfs and filecontext 41 MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build(); 42 DistributedFileSystem dfs = cluster.getFileSystem(); 43 FileContext fc = FileContext.getFileContext(cluster.getURI(0), conf); 44 // Create test files/links 45 FileContextTestHelper helper = new FileContextTestHelper( 46 "/tmp/TestSymlinkHdfsDisable"); 47 Path root = helper.getTestRootPath(fc); 48 Path target = new Path(root, "target"); 49 Path link = new Path(root, "link"); 50 DFSTestUtil.createFile(dfs, target, 4096, (short)1, 0xDEADDEAD); 51 fc.createSymlink(target, link, false); 52 53 // Try to resolve links with FileSystem and FileContext 54 try { 55 fc.open(link); 56 fail("Expected error when attempting to resolve link"); 57 } catch (IOException e) { 58 GenericTestUtils.assertExceptionContains("resolution is disabled", e); 59 } 60 try { 61 dfs.open(link); 62 fail("Expected error when attempting to resolve link"); 63 } catch (IOException e) { 64 GenericTestUtils.assertExceptionContains("resolution is disabled", e); 65 } 66 } 67 } 68