1 /*
   2  * Copyright (c) 2019, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package build.tools.generatecacerts;
  27 
  28 import java.io.FileOutputStream;
  29 import java.io.InputStream;
  30 import java.nio.file.Files;
  31 import java.nio.file.Path;
  32 import java.security.KeyStore;
  33 import java.security.cert.CertificateFactory;
  34 
  35 /**
  36  * Generate cacerts
  37  *    args[0]: Full path string to the directory that contains CA certs
  38  *    args[1]: Full path string to the generated cacerts
  39  */
  40 public class GenerateCacerts {
  41     public static void main(String[] args) throws Exception {
  42         KeyStore ks = KeyStore.getInstance("JKS");
  43         ks.load(null, null);
  44         CertificateFactory cf = CertificateFactory.getInstance("X509");
  45         Files.list(Path.of(args[0]))
  46                 .filter(p -> !p.getFileName().toString().equals("README"))
  47                 .forEach(p -> {
  48                     try {
  49                         String alias = p.getFileName().toString() + " [jdk]";
  50                         try (InputStream fis = Files.newInputStream(p)) {
  51                             ks.setCertificateEntry(alias, cf.generateCertificate(fis));
  52                         }
  53                     } catch (Exception e) {
  54                         throw new RuntimeException(e);
  55                     }
  56                 });
  57         try (FileOutputStream fos = new FileOutputStream(args[1])) {
  58             ks.store(fos, "changeit".toCharArray());
  59         }
  60     }
  61 }