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").get();
40
41
42 // ZipEntry's mod date has 2 seconds precision: give extra time to
43 // allow for e.g. rounding/truncation and networked/samba drives.
44 static final long PRECISION = 10000L;
45
46 static final TimeZone TZ = TimeZone.getDefault();
47 static final boolean DST = TZ.inDaylightTime(new Date());
48
49 static boolean cleanup(File dir) throws Throwable {
50 boolean rc = true;
51 File[] x = dir.listFiles();
52 if (x != null) {
53 for (int i = 0; i < x.length; i++) {
54 rc &= x[i].delete();
55 }
56 }
57 return rc & dir.delete();
58 }
59
60 static void extractJar(File jarFile, boolean useExtractionTime) throws Throwable {
61 String javahome = System.getProperty("java.home");
62 String jarcmd = javahome + File.separator + "bin" + File.separator + "jar";
63 String[] args;
64 if (useExtractionTime) {
65 args = new String[] {
66 jarcmd,
67 "-J-Dsun.tools.jar.useExtractionTime=true",
68 "xf",
69 jarFile.getName() };
70 } else {
71 args = new String[] {
72 jarcmd,
73 "xf",
74 jarFile.getName() };
75 }
76 Process p = Runtime.getRuntime().exec(args);
77 check(p != null && (p.waitFor() == 0));
78 }
79
80 public static void realMain(String[] args) throws Throwable {
81
82 File dirOuter = new File("outer");
83 File dirInner = new File(dirOuter, "inner");
84 File jarFile = new File("JarEntryTime.jar");
85 File testFile = new File("JarEntryTimeTest.txt");
86
87 // Remove any leftovers from prior run
88 cleanup(dirInner);
89 cleanup(dirOuter);
90 jarFile.delete();
91 testFile.delete();
92
93 /* Create a directory structure
94 * outer/
95 * inner/
96 * foo.txt
97 * Set the lastModified dates so that outer is created now, inner
98 * yesterday, and foo.txt created "earlier".
99 */
100 check(dirOuter.mkdir());
101 check(dirInner.mkdir());
102 File fileInner = new File(dirInner, "foo.txt");
103 try (PrintWriter pw = new PrintWriter(fileInner)) {
104 pw.println("hello, world");
105 }
106
107 // Get the "now" from the "last-modified-time" of the last file we
108 // just created, instead of the "System.currentTimeMillis()", to
109 // workaround the possible "time difference" due to nfs.
110 final long now = fileInner.lastModified();
111 final long earlier = now - (60L * 60L * 6L * 1000L);
112 final long yesterday = now - (60L * 60L * 24L * 1000L);
113
114 check(dirOuter.setLastModified(now));
115 check(dirInner.setLastModified(yesterday));
116 check(fileInner.setLastModified(earlier));
117
118 // Make a jar file from that directory structure
119 check(JAR_TOOL.run(System.out, System.err,
120 "cf", jarFile.getName(), dirOuter.getName()) == 0);
121 check(jarFile.exists());
122
123 check(cleanup(dirInner));
124 check(cleanup(dirOuter));
125
126 // Extract and check that the last modified values are those specified
127 // in the archive
128 extractJar(jarFile, false);
129 check(dirOuter.exists());
130 check(dirInner.exists());
131 check(fileInner.exists());
132 checkFileTime(dirOuter.lastModified(), now);
133 checkFileTime(dirInner.lastModified(), yesterday);
134 checkFileTime(fileInner.lastModified(), earlier);
135
136 check(cleanup(dirInner));
137 check(cleanup(dirOuter));
138
139 try (PrintWriter pw = new PrintWriter(testFile)) {
140 pw.println("hello, world");
141 }
142 final long start = testFile.lastModified();
143
144 // Extract and check the last modified values are the current times.
145 extractJar(jarFile, true);
146
147 try (PrintWriter pw = new PrintWriter(testFile)) {
148 pw.println("hello, world");
149 }
150 final long end = testFile.lastModified();
151
152 check(dirOuter.exists());
153 check(dirInner.exists());
154 check(fileInner.exists());
155 checkFileTime(start, dirOuter.lastModified(), end);
156 checkFileTime(start, dirInner.lastModified(), end);
157 checkFileTime(start, fileInner.lastModified(), end);
158
159 check(cleanup(dirInner));
160 check(cleanup(dirOuter));
161
162 check(jarFile.delete());
163 check(testFile.delete());
164 }
165
166 static void checkFileTime(long now, long original) {
167 if (isTimeSettingChanged()) {
168 return;
169 }
170
171 if (Math.abs(now - original) > PRECISION) {
172 System.out.format("Extracted to %s, expected to be close to %s%n",
173 FileTime.fromMillis(now), FileTime.fromMillis(original));
174 fail();
175 }
176 }
177
178 static void checkFileTime(long start, long now, long end) {
179 if (isTimeSettingChanged()) {
180 return;
181 }
182
183 if (now < start || now > end) {
184 System.out.format("Extracted to %s, "
185 + "expected to be after %s and before %s%n",
186 FileTime.fromMillis(now),
187 FileTime.fromMillis(start),
188 FileTime.fromMillis(end));
189 fail();
190 }
191 }
192
193 private static boolean isTimeSettingChanged() {
194 TimeZone currentTZ = TimeZone.getDefault();
195 boolean currentDST = currentTZ.inDaylightTime(new Date());
196 return (!currentTZ.equals(TZ) || currentDST != DST);
197 }
198
199 //--------------------- Infrastructure ---------------------------
200 static volatile int passed = 0, failed = 0;
201 static void pass() {passed++;}
202 static void fail() {failed++; Thread.dumpStack();}
203 static void fail(String msg) {System.out.println(msg); fail();}
204 static void unexpected(Throwable t) {failed++; t.printStackTrace();}
205 static void check(boolean cond) {if (cond) pass(); else fail();}
206 static void equal(Object x, Object y) {
207 if (x == null ? y == null : x.equals(y)) pass();
208 else fail(x + " not equal to " + y);}
209 public static void main(String[] args) throws Throwable {
210 try {realMain(args);} catch (Throwable t) {unexpected(t);}
211 System.out.println("\nPassed = " + passed + " failed = " + failed);
212 if (failed > 0) throw new AssertionError("Some tests failed");}
213 }