1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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   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  *
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  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
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  23 
  24 /**
  25  * @test
  26  * @bug 6374379
  27  * @library /test/lib
  28  * @summary Verify that we can read zip file names > 255 chars long
  29  */
  30 
  31 import java.io.*;
  32 import java.util.jar.*;
  33 import java.util.Stack;
  34 import jdk.test.lib.util.FileUtils;
  35 
  36 public class ReadLongZipFileName {
  37     private static String entryName = "testFile.txt";;
  38 
  39     public static void realMain(String args[]) {
  40         String longDirName = "abcdefghijklmnopqrstuvwx"; // 24 chars.
  41         String jarFileName = "areallylargejarfilename.jar";    // 27 chars.
  42         File file = null;
  43         File myJarFile = null;
  44         int currentFileLength = 0;
  45         int minRequiredLength = 600; // long enough to definitely fail.
  46         Stack<File> directories = new Stack<File>();
  47 
  48         String filename = "." + File.separator;
  49         try {
  50             // Create a directory structure long enough that the filename will
  51             // put us over the minRequiredLength.
  52             do {
  53                 filename = filename + longDirName + File.separator;
  54                 file = new File(filename);
  55                 file.mkdir();
  56                 currentFileLength = file.getCanonicalPath().length();
  57                 directories.push(file);
  58             } while (currentFileLength < (minRequiredLength - jarFileName.length()));
  59 
  60             // Create a new Jar file: use jar instead of zip to make sure long
  61             // names work for both zip and jar subclass.
  62             filename = filename + jarFileName;
  63             JarOutputStream out = new JarOutputStream(
  64                 new BufferedOutputStream(
  65                     new FileOutputStream(filename.toString())));
  66             out.putNextEntry(new JarEntry(entryName));
  67             out.write(1);
  68             out.close();
  69             myJarFile = new File(filename.toString());
  70             currentFileLength = myJarFile.getCanonicalPath().length();
  71             if (!myJarFile.exists()) {
  72                 fail("Jar file does not exist.");
  73             }
  74         } catch (IOException e) {
  75             unexpected(e, "Problem creating the Jar file.");
  76         }
  77 
  78         try {
  79             JarFile readJarFile = new JarFile(myJarFile);
  80             JarEntry je = readJarFile.getJarEntry(entryName);
  81             check(je != null);
  82             DataInputStream dis = new DataInputStream(
  83                 readJarFile.getInputStream(je));
  84             byte val = dis.readByte();
  85             check(val == 1);
  86             try {
  87                 dis.readByte();
  88                 fail("Read past expected EOF");
  89             } catch (IOException e) {
  90                 pass();
  91             }
  92             readJarFile.close();
  93             pass("Opened Jar file for reading with a name " + currentFileLength
  94                  + " characters long");
  95         } catch (IOException e) {
  96             unexpected(e, "Test failed - problem reading the Jar file back in.");
  97         }
  98 
  99         if (myJarFile != null) {
 100             check(myJarFile.delete());
 101         }
 102 
 103         while (! directories.empty()) {
 104             File f = directories.pop();
 105             try {
 106                 FileUtils.deleteFileWithRetry(f.toPath());
 107             } catch (IOException e) {
 108                 unexpected(e, "Fail to clean up directory, " + f);
 109                 break;
 110             }
 111         }
 112     }
 113 
 114     //--------------------- Infrastructure ---------------------------
 115     static volatile int passed = 0, failed = 0;
 116     static void pass() {passed++;}
 117     static void pass(String msg) {System.out.println(msg); passed++;}
 118     static void fail() {failed++; Thread.dumpStack();}
 119     static void fail(String msg) {System.out.println(msg); fail();}
 120     static void unexpected(Throwable t) {failed++; t.printStackTrace();}
 121     static void unexpected(Throwable t, String msg) {
 122         System.out.println(msg); failed++; t.printStackTrace();}
 123     static void check(boolean cond) {if (cond) pass(); else fail();}
 124     static void equal(Object x, Object y) {
 125         if (x == null ? y == null : x.equals(y)) pass();
 126         else fail(x + " not equal to " + y);}
 127     public static void main(String[] args) throws Throwable {
 128         try {realMain(args);} catch (Throwable t) {unexpected(t);}
 129         System.out.println("\nPassed = " + passed + " failed = " + failed);
 130         if (failed > 0) throw new AssertionError("Some tests failed");}
 131 }