1 /* 2 * Copyright (c) 2006, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /** 25 * @test 26 * @bug 4225317 6969651 27 * @modules jdk.jartool 28 * @summary Check extracted files have date as per those in the .jar file 29 */ 30 31 import java.io.File; 32 import java.io.PrintWriter; 33 import java.nio.file.attribute.FileTime; 34 import java.util.Date; 35 import java.util.TimeZone; 36 import java.util.spi.ToolProvider; 37 38 public class JarEntryTime { 39 static final ToolProvider JAR_TOOL = ToolProvider.findFirst("jar") 40 .orElseThrow(() -> 41 new RuntimeException("jar tool not found") 42 ); 43 44 45 // ZipEntry's mod date has 2 seconds precision: give extra time to 46 // allow for e.g. rounding/truncation and networked/samba drives. 47 static final long PRECISION = 10000L; 48 49 static final TimeZone TZ = TimeZone.getDefault(); 50 static final boolean DST = TZ.inDaylightTime(new Date()); 51 cleanup(File dir)52 static boolean cleanup(File dir) throws Throwable { 53 boolean rc = true; 54 File[] x = dir.listFiles(); 55 if (x != null) { 56 for (int i = 0; i < x.length; i++) { 57 rc &= x[i].delete(); 58 } 59 } 60 return rc & dir.delete(); 61 } 62 extractJar(File jarFile, boolean useExtractionTime)63 static void extractJar(File jarFile, boolean useExtractionTime) throws Throwable { 64 String javahome = System.getProperty("java.home"); 65 String jarcmd = javahome + File.separator + "bin" + File.separator + "jar"; 66 String[] args; 67 if (useExtractionTime) { 68 args = new String[] { 69 jarcmd, 70 "-J-Dsun.tools.jar.useExtractionTime=true", 71 "xf", 72 jarFile.getName() }; 73 } else { 74 args = new String[] { 75 jarcmd, 76 "xf", 77 jarFile.getName() }; 78 } 79 Process p = Runtime.getRuntime().exec(args); 80 check(p != null && (p.waitFor() == 0)); 81 } 82 realMain(String[] args)83 public static void realMain(String[] args) throws Throwable { 84 85 File dirOuter = new File("outer"); 86 File dirInner = new File(dirOuter, "inner"); 87 File jarFile = new File("JarEntryTime.jar"); 88 File testFile = new File("JarEntryTimeTest.txt"); 89 90 // Remove any leftovers from prior run 91 cleanup(dirInner); 92 cleanup(dirOuter); 93 jarFile.delete(); 94 testFile.delete(); 95 96 /* Create a directory structure 97 * outer/ 98 * inner/ 99 * foo.txt 100 * Set the lastModified dates so that outer is created now, inner 101 * yesterday, and foo.txt created "earlier". 102 */ 103 check(dirOuter.mkdir()); 104 check(dirInner.mkdir()); 105 File fileInner = new File(dirInner, "foo.txt"); 106 try (PrintWriter pw = new PrintWriter(fileInner)) { 107 pw.println("hello, world"); 108 } 109 110 // Get the "now" from the "last-modified-time" of the last file we 111 // just created, instead of the "System.currentTimeMillis()", to 112 // workaround the possible "time difference" due to nfs. 113 final long now = fileInner.lastModified(); 114 final long earlier = now - (60L * 60L * 6L * 1000L); 115 final long yesterday = now - (60L * 60L * 24L * 1000L); 116 117 check(dirOuter.setLastModified(now)); 118 check(dirInner.setLastModified(yesterday)); 119 check(fileInner.setLastModified(earlier)); 120 121 // Make a jar file from that directory structure 122 check(JAR_TOOL.run(System.out, System.err, 123 "cf", jarFile.getName(), dirOuter.getName()) == 0); 124 check(jarFile.exists()); 125 126 check(cleanup(dirInner)); 127 check(cleanup(dirOuter)); 128 129 // Extract and check that the last modified values are those specified 130 // in the archive 131 extractJar(jarFile, false); 132 check(dirOuter.exists()); 133 check(dirInner.exists()); 134 check(fileInner.exists()); 135 checkFileTime(dirOuter.lastModified(), now); 136 checkFileTime(dirInner.lastModified(), yesterday); 137 checkFileTime(fileInner.lastModified(), earlier); 138 139 check(cleanup(dirInner)); 140 check(cleanup(dirOuter)); 141 142 try (PrintWriter pw = new PrintWriter(testFile)) { 143 pw.println("hello, world"); 144 } 145 final long start = testFile.lastModified(); 146 147 // Extract and check the last modified values are the current times. 148 extractJar(jarFile, true); 149 150 try (PrintWriter pw = new PrintWriter(testFile)) { 151 pw.println("hello, world"); 152 } 153 final long end = testFile.lastModified(); 154 155 check(dirOuter.exists()); 156 check(dirInner.exists()); 157 check(fileInner.exists()); 158 checkFileTime(start, dirOuter.lastModified(), end); 159 checkFileTime(start, dirInner.lastModified(), end); 160 checkFileTime(start, fileInner.lastModified(), end); 161 162 check(cleanup(dirInner)); 163 check(cleanup(dirOuter)); 164 165 check(jarFile.delete()); 166 check(testFile.delete()); 167 } 168 checkFileTime(long now, long original)169 static void checkFileTime(long now, long original) { 170 if (isTimeSettingChanged()) { 171 return; 172 } 173 174 if (Math.abs(now - original) > PRECISION) { 175 System.out.format("Extracted to %s, expected to be close to %s%n", 176 FileTime.fromMillis(now), FileTime.fromMillis(original)); 177 fail(); 178 } 179 } 180 checkFileTime(long start, long now, long end)181 static void checkFileTime(long start, long now, long end) { 182 if (isTimeSettingChanged()) { 183 return; 184 } 185 186 if (now < start || now > end) { 187 System.out.format("Extracted to %s, " 188 + "expected to be after %s and before %s%n", 189 FileTime.fromMillis(now), 190 FileTime.fromMillis(start), 191 FileTime.fromMillis(end)); 192 fail(); 193 } 194 } 195 isTimeSettingChanged()196 private static boolean isTimeSettingChanged() { 197 TimeZone currentTZ = TimeZone.getDefault(); 198 boolean currentDST = currentTZ.inDaylightTime(new Date()); 199 return (!currentTZ.equals(TZ) || currentDST != DST); 200 } 201 202 //--------------------- Infrastructure --------------------------- 203 static volatile int passed = 0, failed = 0; pass()204 static void pass() {passed++;} fail()205 static void fail() {failed++; Thread.dumpStack();} fail(String msg)206 static void fail(String msg) {System.out.println(msg); fail();} unexpected(Throwable t)207 static void unexpected(Throwable t) {failed++; t.printStackTrace();} check(boolean cond)208 static void check(boolean cond) {if (cond) pass(); else fail();} equal(Object x, Object y)209 static void equal(Object x, Object y) { 210 if (x == null ? y == null : x.equals(y)) pass(); 211 else fail(x + " not equal to " + y);} main(String[] args)212 public static void main(String[] args) throws Throwable { 213 try {realMain(args);} catch (Throwable t) {unexpected(t);} 214 System.out.println("\nPassed = " + passed + " failed = " + failed); 215 if (failed > 0) throw new AssertionError("Some tests failed");} 216 } 217