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annotate src/org/tmatesoft/hg/internal/remote/HttpAuthMethod.java @ 702:992fa84e7885

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Reference ssh-dependant class by the fq name to avoid runtime dependency from the ssh library
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 08 Aug 2013 21:32:22 +0200
parents a483b2b68a2e
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rev   line source
699
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1 /*
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2 * Copyright (c) 2013 TMate Software Ltd
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3 *
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4 * This program is free software; you can redistribute it and/or modify
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5 * it under the terms of the GNU General Public License as published by
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6 * the Free Software Foundation; version 2 of the License.
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7 *
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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12 *
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13 * For information on how to redistribute this software under
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14 * the terms of a license other than GNU General Public License
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15 * contact TMate Software at support@hg4j.com
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16 */
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17 package org.tmatesoft.hg.internal.remote;
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18
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19 import static org.tmatesoft.hg.util.LogFacility.Severity.Info;
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20
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21 import java.io.IOException;
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22 import java.io.InputStream;
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23 import java.net.HttpURLConnection;
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24 import java.net.URL;
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25 import java.security.cert.CertificateException;
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26 import java.security.cert.X509Certificate;
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27 import java.util.prefs.BackingStoreException;
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28 import java.util.prefs.Preferences;
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29
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30 import javax.net.ssl.HttpsURLConnection;
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31 import javax.net.ssl.SSLContext;
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32 import javax.net.ssl.TrustManager;
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33 import javax.net.ssl.X509TrustManager;
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34
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35 import org.tmatesoft.hg.auth.HgAuthFailedException;
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36 import org.tmatesoft.hg.auth.HgAuthMethod;
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37 import org.tmatesoft.hg.core.HgRemoteConnectionException;
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38 import org.tmatesoft.hg.core.SessionContext;
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39 import org.tmatesoft.hg.repo.HgInvalidStateException;
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40
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41 /**
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42 *
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43 * @author Artem Tikhomirov
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44 * @author TMate Software Ltd.
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45 */
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46 public class HttpAuthMethod implements HgAuthMethod {
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47
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48 private final SessionContext ctx;
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49 private final URL url;
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50 private String authInfo;
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51 private SSLContext sslContext;
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52
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53 /**
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54 * @param sessionContext
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55 * @param url location fully ready to attempt connection to perform authentication check, e.g. hello command (anything with *small* output will do)
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56 * @throws HgRemoteConnectionException
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57 */
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58 HttpAuthMethod(SessionContext sessionContext, URL url) throws HgRemoteConnectionException {
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59 ctx = sessionContext;
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60 if (!"http".equals(url.getProtocol()) && !"https".equals(url.getProtocol())) {
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61 throw new HgInvalidStateException(String.format("http protocol expected: %s", url.toString()));
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62 }
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63 this.url = url;
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64 if ("https".equals(url.getProtocol())) {
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65 try {
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66 sslContext = SSLContext.getInstance("SSL");
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67 class TrustEveryone implements X509TrustManager {
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68 public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
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69 }
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70 public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
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71 }
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72 public X509Certificate[] getAcceptedIssuers() {
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73 return new X509Certificate[0];
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74 }
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75 };
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76 sslContext.init(null, new TrustManager[] { new TrustEveryone() }, null);
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77 } catch (Exception ex) {
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78 throw new HgRemoteConnectionException("Can't initialize secure connection", ex);
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79 }
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80 } else {
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81 sslContext = null;
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82 }
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83 }
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84
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85 public void tryWithUserInfo(String uriUserInfo) throws HgAuthFailedException {
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86 int colon = uriUserInfo.indexOf(':');
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87 if (colon == -1) {
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88 withPassword(uriUserInfo, null);
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89 } else {
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90 withPassword(uriUserInfo.substring(0, colon), uriUserInfo.substring(colon+1));
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91 }
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92 }
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93
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94 public void noCredentials() throws HgAuthFailedException {
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95 // TODO Auto-generated method stub
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96 checkConnection();
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97 }
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98
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99 public boolean supportsPassword() {
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100 return true;
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101 }
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102
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103 public void withPassword(String username, String password) throws HgAuthFailedException {
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104 authInfo = buildAuthValue(username, password == null ? "" : password);
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105 checkConnection();
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106 }
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107
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108 public boolean supportsPublicKey() {
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109 return false;
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110 }
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111
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112 public void withPublicKey(String username, InputStream privateKey, String passphrase) throws HgAuthFailedException {
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113 }
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114
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115 public boolean supportsCertificate() {
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116 return "https".equals(url.getProtocol());
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117 }
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118
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119 public void withCertificate(X509Certificate[] clientCert) throws HgAuthFailedException {
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120 // TODO Auto-generated method stub
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121 checkConnection();
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122 }
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123
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124 private void checkConnection() throws HgAuthFailedException {
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125 // we've checked the protocol to be http(s)
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126 HttpURLConnection c = null;
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127 try {
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128 c = (HttpURLConnection) url.openConnection();
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129 c = setupConnection(c);
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130 c.connect();
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131 InputStream is = c.getInputStream();
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132 while (is.read() != -1) {
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133 }
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134 is.close();
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135 final int HTTP_UNAUTHORIZED = 401;
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136 if (c.getResponseCode() == HTTP_UNAUTHORIZED) {
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137 throw new HgAuthFailedException(c.getResponseMessage(), null);
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138 }
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139 } catch (IOException ex) {
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140 throw new HgAuthFailedException("Communication failure while authenticating", ex);
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141 } finally {
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142 if (c != null) {
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143 c.disconnect();
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144 }
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145 }
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146 }
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147
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148 HttpURLConnection setupConnection(HttpURLConnection urlConnection) {
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149 if (authInfo != null) {
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150 urlConnection.addRequestProperty("Authorization", "Basic " + authInfo);
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151 }
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152 if (sslContext != null) {
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153 ((HttpsURLConnection) urlConnection).setSSLSocketFactory(sslContext.getSocketFactory());
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154 }
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155 return urlConnection;
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156 }
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157
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158 private String buildAuthValue(String username, String password) {
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159 String ai = null;
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160 try {
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161 // Hack to get Base64-encoded credentials
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162 Preferences tempNode = Preferences.userRoot().node("xxx");
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163 tempNode.putByteArray("xxx", String.format("%s:%s", username, password).getBytes());
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164 ai = tempNode.get("xxx", null);
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165 tempNode.removeNode();
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166 } catch (BackingStoreException ex) {
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167 ctx.getLog().dump(getClass(), Info, ex, null);
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168 // IGNORE
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169 }
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170 return ai;
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171 }
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172 }