[120] | 1 | /** |
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| 2 | * Licensed to the Apache Software Foundation (ASF) under one |
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| 3 | * or more contributor license agreements. See the NOTICE file |
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| 4 | * distributed with this work for additional information |
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| 5 | * regarding copyright ownership. The ASF licenses this file |
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| 6 | * to you under the Apache License, Version 2.0 (the |
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| 7 | * "License"); you may not use this file except in compliance |
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| 8 | * with the License. You may obtain a copy of the License at |
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| 9 | * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 11 | * |
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| 12 | * Unless required by applicable law or agreed to in writing, software |
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| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 15 | * See the License for the specific language governing permissions and |
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| 16 | * limitations under the License. |
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| 17 | */ |
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| 18 | package org.apache.hadoop.fs; |
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| 19 | |
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| 20 | import org.apache.hadoop.conf.Configuration; |
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| 21 | import org.apache.hadoop.fs.permission.*; |
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| 22 | import org.apache.hadoop.util.StringUtils; |
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| 23 | import org.apache.hadoop.util.Shell; |
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| 24 | |
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| 25 | import java.io.*; |
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| 26 | import java.util.*; |
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| 27 | |
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| 28 | import junit.framework.*; |
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| 29 | |
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| 30 | /** |
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| 31 | * This class tests the local file system via the FileSystem abstraction. |
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| 32 | */ |
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| 33 | public class TestLocalFileSystemPermission extends TestCase { |
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| 34 | static final String TEST_PATH_PREFIX = new Path(System.getProperty( |
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| 35 | "test.build.data", "/tmp")).toString().replace(' ', '_') |
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| 36 | + "/" + TestLocalFileSystemPermission.class.getSimpleName() + "_"; |
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| 37 | |
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| 38 | { |
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| 39 | try { |
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| 40 | ((org.apache.commons.logging.impl.Log4JLogger)FileSystem.LOG).getLogger() |
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| 41 | .setLevel(org.apache.log4j.Level.DEBUG); |
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| 42 | } |
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| 43 | catch(Exception e) { |
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| 44 | System.out.println("Cannot change log level\n" |
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| 45 | + StringUtils.stringifyException(e)); |
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| 46 | } |
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| 47 | } |
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| 48 | |
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| 49 | private Path writeFile(FileSystem fs, String name) throws IOException { |
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| 50 | Path f = new Path(TEST_PATH_PREFIX + name); |
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| 51 | FSDataOutputStream stm = fs.create(f); |
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| 52 | stm.writeBytes("42\n"); |
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| 53 | stm.close(); |
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| 54 | return f; |
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| 55 | } |
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| 56 | |
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| 57 | private void cleanupFile(FileSystem fs, Path name) throws IOException { |
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| 58 | assertTrue(fs.exists(name)); |
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| 59 | fs.delete(name, true); |
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| 60 | assertTrue(!fs.exists(name)); |
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| 61 | } |
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| 62 | |
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| 63 | /** Test LocalFileSystem.setPermission */ |
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| 64 | public void testLocalFSsetPermission() throws IOException { |
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| 65 | if (Path.WINDOWS) { |
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| 66 | System.out.println("Cannot run test for Windows"); |
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| 67 | return; |
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| 68 | } |
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| 69 | Configuration conf = new Configuration(); |
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| 70 | LocalFileSystem localfs = FileSystem.getLocal(conf); |
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| 71 | String filename = "foo"; |
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| 72 | Path f = writeFile(localfs, filename); |
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| 73 | try { |
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| 74 | System.out.println(filename + ": " + getPermission(localfs, f)); |
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| 75 | } |
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| 76 | catch(Exception e) { |
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| 77 | System.out.println(StringUtils.stringifyException(e)); |
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| 78 | System.out.println("Cannot run test"); |
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| 79 | return; |
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| 80 | } |
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| 81 | |
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| 82 | try { |
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| 83 | // create files and manipulate them. |
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| 84 | FsPermission all = new FsPermission((short)0777); |
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| 85 | FsPermission none = new FsPermission((short)0); |
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| 86 | |
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| 87 | localfs.setPermission(f, none); |
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| 88 | assertEquals(none, getPermission(localfs, f)); |
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| 89 | |
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| 90 | localfs.setPermission(f, all); |
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| 91 | assertEquals(all, getPermission(localfs, f)); |
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| 92 | } |
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| 93 | finally {cleanupFile(localfs, f);} |
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| 94 | } |
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| 95 | |
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| 96 | FsPermission getPermission(LocalFileSystem fs, Path p) throws IOException { |
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| 97 | return fs.getFileStatus(p).getPermission(); |
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| 98 | } |
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| 99 | |
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| 100 | /** Test LocalFileSystem.setOwner */ |
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| 101 | public void testLocalFSsetOwner() throws IOException { |
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| 102 | if (Path.WINDOWS) { |
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| 103 | System.out.println("Cannot run test for Windows"); |
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| 104 | return; |
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| 105 | } |
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| 106 | |
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| 107 | Configuration conf = new Configuration(); |
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| 108 | LocalFileSystem localfs = FileSystem.getLocal(conf); |
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| 109 | String filename = "bar"; |
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| 110 | Path f = writeFile(localfs, filename); |
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| 111 | List<String> groups = null; |
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| 112 | try { |
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| 113 | groups = getGroups(); |
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| 114 | System.out.println(filename + ": " + getPermission(localfs, f)); |
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| 115 | } |
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| 116 | catch(IOException e) { |
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| 117 | System.out.println(StringUtils.stringifyException(e)); |
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| 118 | System.out.println("Cannot run test"); |
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| 119 | return; |
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| 120 | } |
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| 121 | if (groups == null || groups.size() < 1) { |
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| 122 | System.out.println("Cannot run test: need at least one group. groups=" |
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| 123 | + groups); |
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| 124 | return; |
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| 125 | } |
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| 126 | |
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| 127 | // create files and manipulate them. |
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| 128 | try { |
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| 129 | String g0 = groups.get(0); |
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| 130 | localfs.setOwner(f, null, g0); |
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| 131 | assertEquals(g0, getGroup(localfs, f)); |
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| 132 | |
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| 133 | if (groups.size() > 1) { |
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| 134 | String g1 = groups.get(1); |
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| 135 | localfs.setOwner(f, null, g1); |
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| 136 | assertEquals(g1, getGroup(localfs, f)); |
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| 137 | } else { |
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| 138 | System.out.println("Not testing changing the group since user " + |
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| 139 | "belongs to only one group."); |
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| 140 | } |
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| 141 | } |
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| 142 | finally {cleanupFile(localfs, f);} |
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| 143 | } |
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| 144 | |
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| 145 | static List<String> getGroups() throws IOException { |
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| 146 | List<String> a = new ArrayList<String>(); |
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| 147 | String s = Shell.execCommand(Shell.getGROUPS_COMMAND()); |
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| 148 | for(StringTokenizer t = new StringTokenizer(s); t.hasMoreTokens(); ) { |
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| 149 | a.add(t.nextToken()); |
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| 150 | } |
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| 151 | return a; |
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| 152 | } |
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| 153 | |
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| 154 | String getGroup(LocalFileSystem fs, Path p) throws IOException { |
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| 155 | return fs.getFileStatus(p).getGroup(); |
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| 156 | } |
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| 157 | } |
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