1 /*
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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
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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).
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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22  */
23 
24 /**
25  * @test
26  * @bug 4225317 6969651
27  * @summary Check extracted files have date as per those in the .jar file
28  */
29 
30 import java.io.File;
31 import java.io.PrintWriter;
32 import java.nio.file.attribute.FileTime;
33 import sun.tools.jar.Main;
34 
35 public class JarEntryTime {
36 
37     // ZipEntry's mod date has 2 seconds precision: give extra time to
38     // allow for e.g. rounding/truncation and networked/samba drives.
39     static final long PRECISION = 10000L;
40 
cleanup(File dir)41     static boolean cleanup(File dir) throws Throwable {
42         boolean rc = true;
43         File[] x = dir.listFiles();
44         if (x != null) {
45             for (int i = 0; i < x.length; i++) {
46                 rc &= x[i].delete();
47             }
48         }
49         return rc & dir.delete();
50     }
51 
extractJar(File jarFile, boolean useExtractionTime)52     static void extractJar(File jarFile, boolean useExtractionTime) throws Throwable {
53         String javahome = System.getProperty("java.home");
54         if (javahome.endsWith("jre")) {
55             javahome = javahome.substring(0, javahome.length() - 4);
56         }
57         String jarcmd = javahome + File.separator + "bin" + File.separator + "jar";
58         String[] args;
59         if (useExtractionTime) {
60             args = new String[] {
61                 jarcmd,
62                 "-J-Dsun.tools.jar.useExtractionTime=true",
63                 "xf",
64                 jarFile.getName() };
65         } else {
66             args = new String[] {
67                 jarcmd,
68                 "xf",
69                 jarFile.getName() };
70         }
71         Process p = Runtime.getRuntime().exec(args);
72         check(p != null && (p.waitFor() == 0));
73     }
74 
realMain(String[] args)75     public static void realMain(String[] args) throws Throwable {
76 
77         File dirOuter = new File("outer");
78         File dirInner = new File(dirOuter, "inner");
79         File jarFile = new File("JarEntryTime.jar");
80 
81         // Remove any leftovers from prior run
82         cleanup(dirInner);
83         cleanup(dirOuter);
84         jarFile.delete();
85 
86         /* Create a directory structure
87          * outer/
88          *     inner/
89          *         foo.txt
90          * Set the lastModified dates so that outer is created now, inner
91          * yesterday, and foo.txt created "earlier".
92          */
93         check(dirOuter.mkdir());
94         check(dirInner.mkdir());
95         File fileInner = new File(dirInner, "foo.txt");
96         try (PrintWriter pw = new PrintWriter(fileInner)) {
97             pw.println("hello, world");
98         }
99 
100         // Get the "now" from the "last-modified-time" of the last file we
101         // just created, instead of the "System.currentTimeMillis()", to
102         // workaround the possible "time difference" due to nfs.
103         final long now = fileInner.lastModified();
104         final long earlier = now - (60L * 60L * 6L * 1000L);
105         final long yesterday = now - (60L * 60L * 24L * 1000L);
106 
107         check(dirOuter.setLastModified(now));
108         check(dirInner.setLastModified(yesterday));
109         check(fileInner.setLastModified(earlier));
110 
111         // Make a jar file from that directory structure
112         Main jartool = new Main(System.out, System.err, "jar");
113         check(jartool.run(new String[] {
114                 "cf",
115                 jarFile.getName(), dirOuter.getName() } ));
116         check(jarFile.exists());
117 
118         check(cleanup(dirInner));
119         check(cleanup(dirOuter));
120 
121         // Extract and check that the last modified values are those specified
122         // in the archive
123         extractJar(jarFile, false);
124         check(dirOuter.exists());
125         check(dirInner.exists());
126         check(fileInner.exists());
127         checkFileTime(dirOuter.lastModified(), now);
128         checkFileTime(dirInner.lastModified(), yesterday);
129         checkFileTime(fileInner.lastModified(), earlier);
130 
131         check(cleanup(dirInner));
132         check(cleanup(dirOuter));
133 
134         // Extract and check the last modified values are the current times.
135         // See sun.tools.jar.Main
136         extractJar(jarFile, true);
137         check(dirOuter.exists());
138         check(dirInner.exists());
139         check(fileInner.exists());
140         checkFileTime(dirOuter.lastModified(), now);
141         checkFileTime(dirInner.lastModified(), now);
142         checkFileTime(fileInner.lastModified(), now);
143 
144         check(cleanup(dirInner));
145         check(cleanup(dirOuter));
146 
147         check(jarFile.delete());
148     }
149 
checkFileTime(long now, long original)150     static void checkFileTime(long now, long original) {
151         if (Math.abs(now - original) > PRECISION) {
152             System.out.format("Extracted to %s, expected to be close to %s%n",
153                 FileTime.fromMillis(now), FileTime.fromMillis(original));
154             fail();
155         }
156     }
157 
158     //--------------------- Infrastructure ---------------------------
159     static volatile int passed = 0, failed = 0;
pass()160     static void pass() {passed++;}
fail()161     static void fail() {failed++; Thread.dumpStack();}
fail(String msg)162     static void fail(String msg) {System.out.println(msg); fail();}
unexpected(Throwable t)163     static void unexpected(Throwable t) {failed++; t.printStackTrace();}
check(boolean cond)164     static void check(boolean cond) {if (cond) pass(); else fail();}
equal(Object x, Object y)165     static void equal(Object x, Object y) {
166         if (x == null ? y == null : x.equals(y)) pass();
167         else fail(x + " not equal to " + y);}
main(String[] args)168     public static void main(String[] args) throws Throwable {
169         try {realMain(args);} catch (Throwable t) {unexpected(t);}
170         System.out.println("\nPassed = " + passed + " failed = " + failed);
171         if (failed > 0) throw new AssertionError("Some tests failed");}
172 }
173