1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 package org.apache.commons.compress.archivers.zip; 20 21 import static org.apache.commons.compress.AbstractTestCase.getFile; 22 import static org.junit.Assert.*; 23 24 import java.io.ByteArrayOutputStream; 25 import java.util.zip.ZipEntry; 26 27 import org.junit.Test; 28 29 /** 30 * JUnit testcases for org.apache.commons.compress.archivers.zip.ZipEntry. 31 * 32 */ 33 public class ZipArchiveEntryTest { 34 35 /** 36 * test handling of extra fields 37 */ 38 @Test 39 public void testExtraFields() { 40 final AsiExtraField a = new AsiExtraField(); 41 a.setDirectory(true); 42 a.setMode(0755); 43 final UnrecognizedExtraField u = new UnrecognizedExtraField(); 44 u.setHeaderId(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER); 45 u.setLocalFileDataData(new byte[0]); 46 47 final ZipArchiveEntry ze = new ZipArchiveEntry("test/"); 48 ze.setExtraFields(new ZipExtraField[] {a, u}); 49 final byte[] data1 = ze.getExtra(); 50 ZipExtraField[] result = ze.getExtraFields(); 51 assertEquals("first pass", 2, result.length); 52 assertSame(a, result[0]); 53 assertSame(u, result[1]); 54 55 final UnrecognizedExtraField u2 = new UnrecognizedExtraField(); 56 u2.setHeaderId(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER); 57 u2.setLocalFileDataData(new byte[] {1}); 58 59 ze.addExtraField(u2); 60 final byte[] data2 = ze.getExtra(); 61 result = ze.getExtraFields(); 62 assertEquals("second pass", 2, result.length); 63 assertSame(a, result[0]); 64 assertSame(u2, result[1]); 65 assertEquals("length second pass", data1.length+1, data2.length); 66 67 final UnrecognizedExtraField u3 = new UnrecognizedExtraField(); 68 u3.setHeaderId(new ZipShort(2)); 69 u3.setLocalFileDataData(new byte[] {1}); 70 ze.addExtraField(u3); 71 result = ze.getExtraFields(); 72 assertEquals("third pass", 3, result.length); 73 74 ze.removeExtraField(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER); 75 final byte[] data3 = ze.getExtra(); 76 result = ze.getExtraFields(); 77 assertEquals("fourth pass", 2, result.length); 78 assertSame(a, result[0]); 79 assertSame(u3, result[1]); 80 assertEquals("length fourth pass", data2.length, data3.length); 81 82 try { 83 ze.removeExtraField(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER); 84 fail("should be no such element"); 85 } catch (final java.util.NoSuchElementException nse) { 86 } 87 } 88 89 /** 90 * test handling of extra fields via central directory 91 */ 92 @Test 93 public void testExtraFieldMerging() { 94 final AsiExtraField a = new AsiExtraField(); 95 a.setDirectory(true); 96 a.setMode(0755); 97 final UnrecognizedExtraField u = new UnrecognizedExtraField(); 98 u.setHeaderId(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER); 99 u.setLocalFileDataData(new byte[0]); 100 101 final ZipArchiveEntry ze = new ZipArchiveEntry("test/"); 102 ze.setExtraFields(new ZipExtraField[] {a, u}); 103 104 // merge 105 // Header-ID 1 + length 1 + one byte of data 106 final byte[] b = ExtraFieldUtilsTest.UNRECOGNIZED_HEADER.getBytes(); 107 ze.setCentralDirectoryExtra(new byte[] {b[0], b[1], 1, 0, 127}); 108 109 ZipExtraField[] result = ze.getExtraFields(); 110 assertEquals("first pass", 2, result.length); 111 assertSame(a, result[0]); 112 assertEquals(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER, 113 result[1].getHeaderId()); 114 assertEquals(new ZipShort(0), result[1].getLocalFileDataLength()); 115 assertEquals(new ZipShort(1), result[1].getCentralDirectoryLength()); 116 117 // add new 118 // Header-ID 2 + length 0 119 ze.setCentralDirectoryExtra(new byte[] {2, 0, 0, 0}); 120 121 result = ze.getExtraFields(); 122 assertEquals("second pass", 3, result.length); 123 124 // merge 125 // Header-ID 2 + length 1 + one byte of data 126 ze.setExtra(new byte[] {2, 0, 1, 0, 127}); 127 128 result = ze.getExtraFields(); 129 assertEquals("third pass", 3, result.length); 130 assertSame(a, result[0]); 131 assertEquals(new ZipShort(2), result[2].getHeaderId()); 132 assertEquals(new ZipShort(1), result[2].getLocalFileDataLength()); 133 assertEquals(new ZipShort(0), result[2].getCentralDirectoryLength()); 134 } 135 136 /** 137 * test handling of extra fields 138 */ 139 @Test 140 public void testAddAsFirstExtraField() { 141 final AsiExtraField a = new AsiExtraField(); 142 a.setDirectory(true); 143 a.setMode(0755); 144 final UnrecognizedExtraField u = new UnrecognizedExtraField(); 145 u.setHeaderId(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER); 146 u.setLocalFileDataData(new byte[0]); 147 148 final ZipArchiveEntry ze = new ZipArchiveEntry("test/"); 149 ze.setExtraFields(new ZipExtraField[] {a, u}); 150 final byte[] data1 = ze.getExtra(); 151 152 final UnrecognizedExtraField u2 = new UnrecognizedExtraField(); 153 u2.setHeaderId(ExtraFieldUtilsTest.UNRECOGNIZED_HEADER); 154 u2.setLocalFileDataData(new byte[] {1}); 155 156 ze.addAsFirstExtraField(u2); 157 final byte[] data2 = ze.getExtra(); 158 ZipExtraField[] result = ze.getExtraFields(); 159 assertEquals("second pass", 2, result.length); 160 assertSame(u2, result[0]); 161 assertSame(a, result[1]); 162 assertEquals("length second pass", data1.length + 1, data2.length); 163 164 final UnrecognizedExtraField u3 = new UnrecognizedExtraField(); 165 u3.setHeaderId(new ZipShort(2)); 166 u3.setLocalFileDataData(new byte[] {1}); 167 ze.addAsFirstExtraField(u3); 168 result = ze.getExtraFields(); 169 assertEquals("third pass", 3, result.length); 170 assertSame(u3, result[0]); 171 assertSame(u2, result[1]); 172 assertSame(a, result[2]); 173 } 174 175 @Test 176 public void testUnixMode() { 177 ZipArchiveEntry ze = new ZipArchiveEntry("foo"); 178 assertEquals(0, ze.getPlatform()); 179 ze.setUnixMode(0755); 180 assertEquals(3, ze.getPlatform()); 181 assertEquals(0755, 182 (ze.getExternalAttributes() >> 16) & 0xFFFF); 183 assertEquals(0, ze.getExternalAttributes() & 0xFFFF); 184 185 ze.setUnixMode(0444); 186 assertEquals(3, ze.getPlatform()); 187 assertEquals(0444, 188 (ze.getExternalAttributes() >> 16) & 0xFFFF); 189 assertEquals(1, ze.getExternalAttributes() & 0xFFFF); 190 191 ze = new ZipArchiveEntry("foo/"); 192 assertEquals(0, ze.getPlatform()); 193 ze.setUnixMode(0777); 194 assertEquals(3, ze.getPlatform()); 195 assertEquals(0777, 196 (ze.getExternalAttributes() >> 16) & 0xFFFF); 197 assertEquals(0x10, ze.getExternalAttributes() & 0xFFFF); 198 199 ze.setUnixMode(0577); 200 assertEquals(3, ze.getPlatform()); 201 assertEquals(0577, 202 (ze.getExternalAttributes() >> 16) & 0xFFFF); 203 assertEquals(0x11, ze.getExternalAttributes() & 0xFFFF); 204 } 205 206 /** 207 * Test case for 208 * <a href="https://issues.apache.org/jira/browse/COMPRESS-93" 209 * >COMPRESS-93</a>. 210 */ 211 @Test 212 public void testCompressionMethod() throws Exception { 213 final ZipArchiveOutputStream zos = 214 new ZipArchiveOutputStream(new ByteArrayOutputStream()); 215 final ZipArchiveEntry entry = new ZipArchiveEntry("foo"); 216 assertEquals(-1, entry.getMethod()); 217 assertFalse(zos.canWriteEntryData(entry)); 218 219 entry.setMethod(ZipEntry.STORED); 220 assertEquals(ZipEntry.STORED, entry.getMethod()); 221 assertTrue(zos.canWriteEntryData(entry)); 222 223 entry.setMethod(ZipEntry.DEFLATED); 224 assertEquals(ZipEntry.DEFLATED, entry.getMethod()); 225 assertTrue(zos.canWriteEntryData(entry)); 226 227 // Test the unsupported "imploded" compression method (6) 228 entry.setMethod(6); 229 assertEquals(6, entry.getMethod()); 230 assertFalse(zos.canWriteEntryData(entry)); 231 zos.close(); 232 } 233 234 /** 235 * Test case for 236 * <a href="https://issues.apache.org/jira/browse/COMPRESS-94" 237 * >COMPRESS-94</a>. 238 */ 239 @Test 240 public void testNotEquals() { 241 final ZipArchiveEntry entry1 = new ZipArchiveEntry("foo"); 242 final ZipArchiveEntry entry2 = new ZipArchiveEntry("bar"); 243 assertFalse(entry1.equals(entry2)); 244 } 245 246 /** 247 * Tests comment's influence on equals comparisons. 248 * @see "https://issues.apache.org/jira/browse/COMPRESS-187" 249 */ 250 @Test 251 public void testNullCommentEqualsEmptyComment() { 252 final ZipArchiveEntry entry1 = new ZipArchiveEntry("foo"); 253 final ZipArchiveEntry entry2 = new ZipArchiveEntry("foo"); 254 final ZipArchiveEntry entry3 = new ZipArchiveEntry("foo"); 255 entry1.setComment(null); 256 entry2.setComment(""); 257 entry3.setComment("bar"); 258 assertEquals(entry1, entry2); 259 assertFalse(entry1.equals(entry3)); 260 assertFalse(entry2.equals(entry3)); 261 } 262 263 @Test 264 public void testCopyConstructor() throws Exception { 265 final ZipArchiveEntry archiveEntry = new ZipArchiveEntry("fred"); 266 archiveEntry.setUnixMode(0664); 267 archiveEntry.setMethod(ZipEntry.DEFLATED); 268 archiveEntry.getGeneralPurposeBit().useStrongEncryption(true); 269 final ZipArchiveEntry copy = new ZipArchiveEntry(archiveEntry); 270 assertEquals(archiveEntry, copy); 271 } 272 273 /** 274 * @see "https://issues.apache.org/jira/browse/COMPRESS-379" 275 */ 276 @Test 277 public void isUnixSymlinkIsFalseIfMoreThanOneFlagIsSet() throws Exception { 278 try (ZipFile zf = new ZipFile(getFile("COMPRESS-379.jar"))) { 279 ZipArchiveEntry ze = zf.getEntry("META-INF/maven/"); 280 assertFalse(ze.isUnixSymlink()); 281 } 282 } 283 284 @Test 285 public void testIsUnixSymlink() { 286 ZipArchiveEntry ze = new ZipArchiveEntry("foo"); 287 ze.setUnixMode(UnixStat.LINK_FLAG); 288 assertTrue(ze.isUnixSymlink()); 289 ze.setUnixMode(UnixStat.LINK_FLAG | UnixStat.DIR_FLAG); 290 assertFalse(ze.isUnixSymlink()); 291 } 292 293 } 294
