Mercurial > 510Connectbot
annotate src/org/tn5250j/framework/transport/SSL/SSLImplementation.java @ 44:959ebe0247b5 tn5250
start tn5250 integration
| author | Carl Byington <carl@five-ten-sg.com> |
|---|---|
| date | Wed, 11 Jun 2014 09:30:50 -0700 |
| parents | 011462bddcf1 |
| children | 8f23b05a51f7 |
| rev | line source |
|---|---|
| 3 | 1 package org.tn5250j.framework.transport.SSL; |
| 2 | |
| 3 /* | |
| 4 * @(#)SSLImplementation.java | |
| 5 * @author Stephen M. Kennedy | |
| 6 * | |
| 7 * Copyright: Copyright (c) 2001 | |
| 8 * | |
| 9 * This program is free software; you can redistribute it and/or modify | |
| 10 * it under the terms of the GNU General Public License as published by | |
| 11 * the Free Software Foundation; either version 2, or (at your option) | |
| 12 * any later version. | |
| 13 * | |
| 14 * This program is distributed in the hope that it will be useful, | |
| 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 * GNU General Public License for more details. | |
| 18 * | |
| 19 * You should have received a copy of the GNU General Public License | |
| 20 * along with this software; see the file COPYING. If not, write to | |
| 21 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
| 22 * Boston, MA 02111-1307 USA | |
| 23 * | |
| 24 */ | |
| 25 | |
| 26 import java.io.File; | |
| 27 import java.io.FileInputStream; | |
| 28 import java.io.FileOutputStream; | |
| 29 import java.net.Socket; | |
| 30 import java.security.KeyStore; | |
| 31 import java.security.cert.CertificateException; | |
| 32 import java.security.cert.X509Certificate; | |
| 33 | |
| 34 import javax.net.ssl.KeyManagerFactory; | |
| 35 import javax.net.ssl.SSLContext; | |
| 36 import javax.net.ssl.SSLSocket; | |
| 37 import javax.net.ssl.TrustManager; | |
| 38 import javax.net.ssl.TrustManagerFactory; | |
| 39 import javax.net.ssl.X509TrustManager; | |
| 8 | 40 |
| 13 | 41 import com.five_ten_sg.connectbot.R; |
| 8 | 42 import com.five_ten_sg.connectbot.service.TerminalBridge; |
| 43 import com.five_ten_sg.connectbot.service.TerminalManager; | |
| 3 | 44 |
| 45 import org.tn5250j.GlobalConfigure; | |
| 46 import org.tn5250j.framework.transport.SSLInterface; | |
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47 import android.util.Log; |
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48 |
| 3 | 49 |
| 50 /** | |
| 51 * <p> | |
| 52 * This class implements the SSLInterface and is used to create SSL socket | |
| 53 * instances. | |
| 54 * </p> | |
| 8 | 55 * |
| 3 | 56 * @author Stephen M. Kennedy <skennedy@tenthpowertech.com> |
| 8 | 57 * |
| 3 | 58 */ |
| 59 public class SSLImplementation implements SSLInterface, X509TrustManager { | |
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60 private static final String TAG = "SSLImplementation"; |
| 3 | 61 SSLContext sslContext = null; |
| 62 KeyStore userks = null; | |
| 63 private String userKsPath; | |
| 64 private char[] userksPassword = "changeit".toCharArray(); | |
| 65 | |
| 8 | 66 TerminalBridge bridge = null; |
| 67 TerminalManager manager = null; | |
| 68 String target = null; // destination:port | |
| 69 | |
| 3 | 70 KeyManagerFactory userkmf = null; |
| 71 | |
| 72 TrustManagerFactory usertmf = null; | |
| 73 | |
| 74 TrustManager[] userTrustManagers = null; | |
| 75 | |
| 76 X509Certificate[] acceptedIssuers; | |
| 77 | |
| 8 | 78 public SSLImplementation(TerminalBridge bridge, TerminalManager manager) { |
| 79 this.bridge = bridge; | |
| 80 this.manager = manager; | |
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81 |
| 3 | 82 } |
| 83 | |
| 84 public void init(String sslType) { | |
| 85 try { | |
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86 Log.d(TAG,"Initializing User KeyStore"); |
| 3 | 87 userKsPath = System.getProperty("user.home") + File.separator |
| 88 + GlobalConfigure.TN5250J_FOLDER + File.separator + "keystore"; | |
| 89 File userKsFile = new File(userKsPath); | |
| 90 userks = KeyStore.getInstance(KeyStore.getDefaultType()); | |
| 91 userks.load(userKsFile.exists() ? new FileInputStream(userKsFile) | |
| 92 : null, userksPassword); | |
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93 Log.d(TAG,"Initializing User Key Manager Factory"); |
| 3 | 94 userkmf = KeyManagerFactory.getInstance(KeyManagerFactory |
| 95 .getDefaultAlgorithm()); | |
| 96 userkmf.init(userks, userksPassword); | |
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97 Log.d(TAG,"Initializing User Trust Manager Factory"); |
| 3 | 98 usertmf = TrustManagerFactory.getInstance(TrustManagerFactory |
| 99 .getDefaultAlgorithm()); | |
| 100 usertmf.init(userks); | |
| 101 userTrustManagers = usertmf.getTrustManagers(); | |
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102 Log.d(TAG,"Initializing SSL Context"); |
| 3 | 103 sslContext = SSLContext.getInstance(sslType); |
| 104 sslContext.init(userkmf.getKeyManagers(), new TrustManager[] {this}, null); | |
| 105 } catch (Exception ex) { | |
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106 Log.e(TAG,"Error initializing SSL [" + ex.getMessage() + "]"); |
| 3 | 107 } |
| 108 | |
| 109 } | |
| 110 | |
| 111 public Socket createSSLSocket(String destination, int port) { | |
| 112 if (sslContext == null) | |
| 113 throw new IllegalStateException("SSL Context Not Initialized"); | |
| 114 SSLSocket socket = null; | |
| 115 try { | |
| 8 | 116 target = destination + ":" + String.valueOf(port); |
| 3 | 117 socket = (SSLSocket) sslContext.getSocketFactory().createSocket( |
| 118 destination, port); | |
| 119 } catch (Exception e) { | |
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120 Log.e(TAG,"Error creating ssl socket [" + e.getMessage() + "]"); |
| 3 | 121 } |
| 122 return socket; | |
| 123 } | |
| 124 | |
| 125 // X509TrustManager Methods | |
| 126 | |
| 127 /* | |
| 128 * (non-Javadoc) | |
| 8 | 129 * |
| 3 | 130 * @see javax.net.ssl.X509TrustManager#getAcceptedIssuers() |
| 131 */ | |
| 132 public X509Certificate[] getAcceptedIssuers() { | |
| 133 return acceptedIssuers; | |
| 134 } | |
| 135 | |
| 136 /* | |
| 137 * (non-Javadoc) | |
| 8 | 138 * |
| 3 | 139 * @see |
| 140 * javax.net.ssl.X509TrustManager#checkClientTrusted(java.security.cert. | |
| 141 * X509Certificate[], java.lang.String) | |
| 142 */ | |
| 143 public void checkClientTrusted(X509Certificate[] arg0, String arg1) | |
| 144 throws CertificateException { | |
| 145 throw new SecurityException("checkClientTrusted unsupported"); | |
| 146 | |
| 147 } | |
| 148 | |
| 149 /* | |
| 150 * (non-Javadoc) | |
| 8 | 151 * |
| 3 | 152 * @see |
| 153 * javax.net.ssl.X509TrustManager#checkServerTrusted(java.security.cert. | |
| 154 * X509Certificate[], java.lang.String) | |
| 155 */ | |
| 156 public void checkServerTrusted(X509Certificate[] chain, String type) | |
| 157 throws CertificateException { | |
| 158 try { | |
| 159 for (int i = 0; i < userTrustManagers.length; i++) { | |
| 160 if (userTrustManagers[i] instanceof X509TrustManager) { | |
| 161 X509TrustManager trustManager = (X509TrustManager) userTrustManagers[i]; | |
| 162 X509Certificate[] calist = trustManager | |
| 163 .getAcceptedIssuers(); | |
| 164 if (calist.length > 0) { | |
| 165 trustManager.checkServerTrusted(chain, type); | |
| 166 } else { | |
| 167 throw new CertificateException( | |
| 168 "Empty list of accepted issuers (a.k.a. root CA list)."); | |
| 169 } | |
| 170 } | |
| 171 } | |
| 172 return; | |
| 173 } catch (CertificateException ce) { | |
| 174 X509Certificate cert = chain[0]; | |
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175 String certInfo = manager.res.getString(R.string.host_cert_version) + cert.getVersion() + "\r\n"; |
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176 certInfo = certInfo.concat(manager.res.getString(R.string.host_cert_serial) + cert.getSerialNumber() + "\r\n"); |
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177 certInfo = certInfo.concat(manager.res.getString(R.string.host_cert_algorithm) + cert.getSigAlgName() + "\r\n"); |
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178 certInfo = certInfo.concat(manager.res.getString(R.string.host_cert_issuer) + cert.getIssuerDN().getName() + "\r\n"); |
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179 certInfo = certInfo.concat(manager.res.getString(R.string.host_cert_from) + cert.getNotBefore() + "\r\n"); |
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180 certInfo = certInfo.concat(manager.res.getString(R.string.host_cert_to) + cert.getNotAfter() + "\r\n"); |
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181 certInfo = certInfo.concat(manager.res.getString(R.string.host_cert_dn) + cert.getSubjectDN().getName() + "\r\n"); |
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182 certInfo = certInfo.concat(manager.res.getString(R.string.host_cert_publickey) + cert.getPublicKey().getFormat() + "\r\n"); |
| 3 | 183 |
| 8 | 184 bridge.outputLine(manager.res.getString(R.string.host_authenticity_warning, target)); |
| 185 bridge.outputLine(manager.res.getString(R.string.host_certificate, certInfo)); | |
| 186 Boolean result = bridge.promptHelper.requestBooleanPrompt(null, manager.res.getString(R.string.prompt_accept_certificate)); | |
| 9 | 187 if ((result == null) || (!result.booleanValue())) { |
| 3 | 188 throw new java.security.cert.CertificateException( |
| 189 "Certificate Rejected"); | |
| 190 } | |
| 191 | |
| 8 | 192 result = bridge.promptHelper.requestBooleanPrompt(null, manager.res.getString(R.string.prompt_save_certificate)); |
| 9 | 193 if ((result != null) && (result.booleanValue())) { |
| 3 | 194 try { |
| 195 userks.setCertificateEntry(cert.getSubjectDN().getName(), | |
| 196 cert); | |
| 197 userks.store(new FileOutputStream(userKsPath), | |
| 198 userksPassword); | |
| 199 } catch (Exception e) { | |
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200 Log.e(TAG,"Error saving certificate [" + e.getMessage() |
| 3 | 201 + "]"); |
| 202 e.printStackTrace(); | |
| 203 } | |
| 204 } | |
| 205 } | |
| 206 } | |
| 207 } |