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1 package org.tn5250j.framework.transport.SSL;
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2
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3 /*
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4 * @(#)X509CertificateTrustManager.java
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5 *
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6 * Copyright: Copyright (c) 2001
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7 *
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8 * This program is free software; you can redistribute it and/or modify
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9 * it under the terms of the GNU General Public License as published by
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10 * the Free Software Foundation; either version 2, or (at your option)
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11 * any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful,
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14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 * GNU General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU General Public License
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19 * along with this software; see the file COPYING. If not, write to
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20 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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21 * Boston, MA 02111-1307 USA
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22 *
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23 */
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24 import javax.net.ssl.TrustManager;
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25 import javax.net.ssl.X509TrustManager;
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26 import java.security.cert.X509Certificate;
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27 import java.security.KeyStore;
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28 import java.security.cert.CertificateException;
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29 import java.util.ArrayList;
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30 import java.util.Arrays;
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31
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32 import javax.swing.JOptionPane;
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33
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34 /**
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35 * This class is used to trust certificates exchanged during an SSL socket
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36 * handshake. It allows the user to accept the certificate so that connections
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37 * can be made without requiring the server to have a certificate signed by a
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38 * CA (Verisign, Thawte, etc.).
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39 *
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40 * @author Stephen M. Kennedy <skennedy@tenthpowertech.com>
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41 * @deprecated. no longer used.
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42 *
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43 */
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44 public class X509CertificateTrustManager implements X509TrustManager {
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45
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46 KeyStore ks = null;
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47 TrustManager[] trustManagers;
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48 //X509TrustManager trustManager = null;
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49
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50 public X509CertificateTrustManager(TrustManager[] managers, KeyStore keyStore) {
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51 trustManagers = managers;
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52 ks = keyStore;
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53 }
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54
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55 public void checkClientTrusted(X509Certificate[] chain, String type) throws CertificateException {
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56 throw new SecurityException("checkClientTrusted unsupported");
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57 }
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58
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59
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60 /**
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61 * Checks the server certificate. If it isn't trusted by the trust manager
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62 * passed to the constructor, then the user will be prompted to accept the
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63 * certificate.
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64 */
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65 public void checkServerTrusted(X509Certificate[] chain, String type)
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66 throws CertificateException {
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67 try {
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68 for (int i=0; i<trustManagers.length; i++) {
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69 if (trustManagers[i] instanceof X509TrustManager)
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70 ((X509TrustManager)trustManagers[i]).checkServerTrusted(chain,type);
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71 }
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72 return;
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73 } catch (CertificateException ce) {
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74 X509Certificate cert = chain[0];
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75 String certInfo = "Version: " + cert.getVersion() + "\n";
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76 certInfo = certInfo.concat("Serial Number: " + cert.getSerialNumber()+"\n");
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77 certInfo = certInfo.concat("Signature Algorithm: " + cert.getSigAlgName()+"\n");
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78 certInfo = certInfo.concat("Issuer: " + cert.getIssuerDN().getName()+"\n");
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79 certInfo = certInfo.concat("Valid From: " + cert.getNotBefore()+"\n");
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80 certInfo = certInfo.concat("Valid To: " + cert.getNotAfter()+"\n");
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81 certInfo = certInfo.concat("Subject DN: " + cert.getSubjectDN().getName()+"\n");
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82 certInfo = certInfo.concat("Public Key: " + cert.getPublicKey().getFormat()+"\n");
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83
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84 int accept = JOptionPane.showConfirmDialog(null,certInfo,
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85 "Accept Certificate",javax.swing.JOptionPane.YES_NO_OPTION);
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86 if (accept != JOptionPane.YES_OPTION) {
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87 throw new java.security.cert.CertificateException("Certificate Not Accepted");
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88 }
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89 }
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90 }
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91
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92 public X509Certificate[] getAcceptedIssuers() {
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93 ArrayList<X509Certificate> list = new ArrayList<X509Certificate>(10);
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94 for (int i=0; i<trustManagers.length; i++) {
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95 if (trustManagers[i] instanceof X509TrustManager)
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96 list.addAll(Arrays.asList(((X509TrustManager)trustManagers[i]).getAcceptedIssuers()));
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97 }
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98 X509Certificate[] acceptedIssuers = new X509Certificate[list.size()];
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99 acceptedIssuers = list.toArray(acceptedIssuers);
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100 return acceptedIssuers;
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101 }
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102 } |