1 /*
   2  * Copyright (c) 2003, 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 4953126
  27  * @summary Check that a signed JAR file containing an unsupported signer info
  28  *          attribute can be parsed successfully.
  29  */
  30 
  31 import java.io.File;
  32 import java.io.InputStream;
  33 import java.security.cert.Certificate;
  34 import java.util.Enumeration;
  35 import java.util.jar.*;
  36 
  37 public class ScanSignedJar {
  38 
  39     public static void main(String[] args) throws Exception {
  40         boolean isSigned = false;
  41         try (JarFile file = new JarFile(new File(System.getProperty("test.src","."),
  42                  "bogus-signerinfo-attr.jar"))) {
  43             byte[] buffer = new byte[8192];
  44 
  45             for (Enumeration entries = file.entries(); entries.hasMoreElements();) {
  46                 JarEntry entry = (JarEntry) entries.nextElement();
  47                 try (InputStream jis = file.getInputStream(entry)) {
  48                     while (jis.read(buffer, 0, buffer.length) != -1) {
  49                         // read the jar entry
  50                     }
  51                 }
  52                 if (entry.getCertificates() != null) {
  53                     isSigned = true;
  54                 }
  55                 System.out.println((isSigned ? "[signed] " : "\t ") +
  56                     entry.getName());
  57             }
  58         }
  59 
  60         if (isSigned) {
  61             System.out.println("\nJAR file has signed entries");
  62         } else {
  63             throw new Exception("Failed to detect that the JAR file is signed");
  64         }
  65     }
  66 }