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1 /* |
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2 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package sun.security.provider; |
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27 |
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28 import java.io.*; |
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29 import java.lang.reflect.*; |
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30 import java.net.URL; |
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31 import java.util.*; |
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32 |
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33 import java.security.AccessController; |
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34 import java.security.CodeSource; |
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35 import java.security.KeyStore; |
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36 import java.security.KeyStoreException; |
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37 import java.security.Permission; |
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38 import java.security.Permissions; |
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39 import java.security.PermissionCollection; |
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40 import java.security.Principal; |
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41 import java.security.PrivilegedAction; |
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42 import java.security.UnresolvedPermission; |
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43 import java.security.Security; |
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44 import java.security.cert.Certificate; |
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45 import java.security.cert.X509Certificate; |
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46 |
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47 import javax.security.auth.Subject; |
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48 import javax.security.auth.PrivateCredentialPermission; |
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49 |
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50 import sun.security.provider.PolicyParser.GrantEntry; |
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51 import sun.security.provider.PolicyParser.PermissionEntry; |
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52 import sun.security.provider.PolicyParser.PrincipalEntry; |
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53 import sun.security.util.Debug; |
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54 import sun.security.util.PolicyUtil; |
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55 import sun.security.util.PropertyExpander; |
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56 |
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57 /** |
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58 * See {@code com.sun.security.auth.PolicyFile} for the class description. |
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59 * This class is necessary in order to support a default |
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60 * {@code javax.security.auth.Policy} implementation on the compact1 and |
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61 * compact2 profiles. |
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62 * |
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63 * @deprecated As of JDK 1.4, replaced by |
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64 * {@code sun.security.provider.PolicyFile}. |
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65 * This class is entirely deprecated. |
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66 */ |
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67 @Deprecated |
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68 public class AuthPolicyFile extends javax.security.auth.Policy { |
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69 |
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70 static final ResourceBundle rb = |
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71 AccessController.doPrivileged(new PrivilegedAction<ResourceBundle>() { |
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72 @Override public ResourceBundle run() { |
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73 return (ResourceBundle.getBundle |
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74 ("sun.security.util.AuthResources")); |
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75 } |
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76 }); |
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77 |
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78 private static final Debug debug = Debug.getInstance("policy", |
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79 "\t[Auth Policy]"); |
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80 |
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81 private static final String AUTH_POLICY = "java.security.auth.policy"; |
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82 private static final String SECURITY_MANAGER = "java.security.manager"; |
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83 private static final String AUTH_POLICY_URL = "auth.policy.url."; |
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84 |
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85 private Vector<PolicyEntry> policyEntries; |
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86 private Hashtable<Object, Object> aliasMapping; |
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87 |
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88 private boolean initialized = false; |
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89 |
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90 private boolean expandProperties = true; |
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91 private boolean ignoreIdentityScope = true; |
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92 |
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93 // for use with the reflection API |
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94 private static final Class[] PARAMS = { String.class, String.class}; |
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95 |
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96 /** |
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97 * Initializes the Policy object and reads the default policy |
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98 * configuration file(s) into the Policy object. |
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99 */ |
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100 public AuthPolicyFile() { |
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101 // initialize Policy if either the AUTH_POLICY or |
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102 // SECURITY_MANAGER properties are set |
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103 String prop = System.getProperty(AUTH_POLICY); |
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104 |
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105 if (prop == null) { |
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106 prop = System.getProperty(SECURITY_MANAGER); |
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107 } |
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108 if (prop != null) { |
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109 init(); |
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110 } |
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111 } |
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112 |
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113 private synchronized void init() { |
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114 if (initialized) { |
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115 return; |
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116 } |
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117 |
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118 policyEntries = new Vector<PolicyEntry>(); |
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119 aliasMapping = new Hashtable<Object, Object>(11); |
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120 |
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121 initPolicyFile(); |
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122 initialized = true; |
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123 } |
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124 |
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125 @Override |
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126 public synchronized void refresh() { |
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127 |
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128 java.lang.SecurityManager sm = System.getSecurityManager(); |
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129 if (sm != null) { |
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130 sm.checkPermission(new javax.security.auth.AuthPermission |
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131 ("refreshPolicy")); |
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132 } |
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133 |
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134 // XXX |
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135 // |
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136 // 1) if code instantiates PolicyFile directly, then it will need |
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137 // all the permissions required for the PolicyFile initialization |
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138 // 2) if code calls Policy.getPolicy, then it simply needs |
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139 // AuthPermission(getPolicy), and the javax.security.auth.Policy |
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140 // implementation instantiates PolicyFile in a doPrivileged block |
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141 // 3) if after instantiating a Policy (either via #1 or #2), |
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142 // code calls refresh, it simply needs |
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143 // AuthPermission(refreshPolicy). then PolicyFile wraps |
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144 // the refresh in a doPrivileged block. |
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145 initialized = false; |
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146 AccessController.doPrivileged(new PrivilegedAction<Void>() { |
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147 @Override public Void run() { |
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148 init(); |
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149 return null; |
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150 } |
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151 }); |
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152 } |
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153 |
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154 private KeyStore initKeyStore(URL policyUrl, String keyStoreName, |
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155 String keyStoreType) { |
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156 if (keyStoreName != null) { |
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157 try { |
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158 /* |
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159 * location of keystore is specified as absolute URL in policy |
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160 * file, or is relative to URL of policy file |
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161 */ |
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162 URL keyStoreUrl = null; |
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163 try { |
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164 keyStoreUrl = new URL(keyStoreName); |
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165 // absolute URL |
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166 } catch (java.net.MalformedURLException e) { |
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167 // relative URL |
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168 keyStoreUrl = new URL(policyUrl, keyStoreName); |
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169 } |
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170 |
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171 if (debug != null) { |
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172 debug.println("reading keystore"+keyStoreUrl); |
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173 } |
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174 |
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175 InputStream inStream = new BufferedInputStream( |
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176 PolicyUtil.getInputStream(keyStoreUrl)); |
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177 |
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178 KeyStore ks; |
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179 if (keyStoreType != null) |
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180 ks = KeyStore.getInstance(keyStoreType); |
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181 else |
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182 ks = KeyStore.getInstance(KeyStore.getDefaultType()); |
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183 ks.load(inStream, null); |
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184 inStream.close(); |
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185 return ks; |
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186 } catch (Exception e) { |
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187 // ignore, treat it like we have no keystore |
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188 if (debug != null) { |
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189 e.printStackTrace(); |
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190 } |
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191 return null; |
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192 } |
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193 } |
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194 return null; |
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195 } |
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196 |
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197 private void initPolicyFile() { |
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198 |
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199 String prop = Security.getProperty("policy.expandProperties"); |
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200 if (prop != null) { |
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201 expandProperties = prop.equalsIgnoreCase("true"); |
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202 } |
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203 |
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204 String iscp = Security.getProperty("policy.ignoreIdentityScope"); |
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205 if (iscp != null) { |
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206 ignoreIdentityScope = iscp.equalsIgnoreCase("true"); |
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207 } |
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208 |
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209 String allowSys = Security.getProperty("policy.allowSystemProperty"); |
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210 if (allowSys != null && allowSys.equalsIgnoreCase("true")) { |
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211 String extra_policy = System.getProperty(AUTH_POLICY); |
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212 if (extra_policy != null) { |
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213 boolean overrideAll = false; |
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214 if (extra_policy.startsWith("=")) { |
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215 overrideAll = true; |
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216 extra_policy = extra_policy.substring(1); |
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217 } |
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218 try { |
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219 extra_policy = PropertyExpander.expand(extra_policy); |
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220 URL policyURL; |
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221 File policyFile = new File(extra_policy); |
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222 if (policyFile.exists()) { |
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223 policyURL = |
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224 new URL("file:" + policyFile.getCanonicalPath()); |
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225 } else { |
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226 policyURL = new URL(extra_policy); |
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227 } |
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228 if (debug != null) { |
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229 debug.println("reading " + policyURL); |
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230 } |
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231 init(policyURL); |
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232 } catch (Exception e) { |
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233 // ignore. |
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234 if (debug != null) { |
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235 debug.println("caught exception: " + e); |
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236 } |
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237 |
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238 } |
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239 if (overrideAll) { |
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240 if (debug != null) { |
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241 debug.println("overriding other policies!"); |
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242 } |
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243 return; |
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244 } |
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245 } |
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246 } |
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247 |
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248 int n = 1; |
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249 boolean loaded_one = false; |
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250 String policy_url; |
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251 |
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252 while ((policy_url = Security.getProperty(AUTH_POLICY_URL+n)) != null) { |
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253 try { |
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254 policy_url = PropertyExpander.expand(policy_url).replace |
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255 (File.separatorChar, '/'); |
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256 if (debug != null) { |
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257 debug.println("reading " + policy_url); |
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258 } |
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259 init(new URL(policy_url)); |
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260 loaded_one = true; |
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261 } catch (Exception e) { |
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262 if (debug != null) { |
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263 debug.println("error reading policy " + e); |
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264 e.printStackTrace(); |
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265 } |
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266 // ignore that policy |
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267 } |
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268 n++; |
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269 } |
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270 |
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271 if (loaded_one == false) { |
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272 // do not load a static policy |
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273 } |
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274 } |
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275 |
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276 /** |
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277 * Checks public key. If it is marked as trusted in |
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278 * the identity database, add it to the policy |
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279 * with the AllPermission. |
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280 */ |
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281 private boolean checkForTrustedIdentity(final Certificate cert) { |
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282 return false; |
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283 } |
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284 |
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285 /** |
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286 * Reads a policy configuration into the Policy object using a |
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287 * Reader object. |
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288 * |
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289 * @param policyFile the policy Reader object. |
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290 */ |
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291 private void init(URL policy) { |
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292 PolicyParser pp = new PolicyParser(expandProperties); |
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293 try (InputStreamReader isr |
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294 = new InputStreamReader(PolicyUtil.getInputStream(policy))) { |
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295 pp.read(isr); |
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296 KeyStore keyStore = initKeyStore(policy, pp.getKeyStoreUrl(), |
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297 pp.getKeyStoreType()); |
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298 Enumeration<GrantEntry> enum_ = pp.grantElements(); |
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299 while (enum_.hasMoreElements()) { |
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300 GrantEntry ge = enum_.nextElement(); |
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301 addGrantEntry(ge, keyStore); |
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302 } |
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303 } catch (PolicyParser.ParsingException pe) { |
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304 System.err.println(AUTH_POLICY + |
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305 rb.getString(".error.parsing.") + policy); |
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306 System.err.println(AUTH_POLICY + rb.getString("COLON") + |
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307 pe.getMessage()); |
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308 if (debug != null) { |
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309 pe.printStackTrace(); |
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310 } |
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311 } catch (Exception e) { |
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312 if (debug != null) { |
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313 debug.println("error parsing " + policy); |
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314 debug.println(e.toString()); |
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315 e.printStackTrace(); |
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316 } |
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317 } |
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318 } |
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319 |
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320 /** |
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321 * Given a PermissionEntry, create a codeSource. |
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322 * |
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323 * @return null if signedBy alias is not recognized |
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324 */ |
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325 CodeSource getCodeSource(GrantEntry ge, KeyStore keyStore) |
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326 throws java.net.MalformedURLException |
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327 { |
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328 Certificate[] certs = null; |
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329 if (ge.signedBy != null) { |
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330 certs = getCertificates(keyStore, ge.signedBy); |
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331 if (certs == null) { |
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332 // we don't have a key for this alias, |
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333 // just return |
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334 if (debug != null) { |
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335 debug.println(" no certs for alias " + |
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336 ge.signedBy + ", ignoring."); |
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337 } |
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338 return null; |
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339 } |
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340 } |
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341 |
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342 URL location; |
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343 if (ge.codeBase != null) { |
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344 location = new URL(ge.codeBase); |
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345 } else { |
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346 location = null; |
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347 } |
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348 |
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349 if (ge.principals == null || ge.principals.size() == 0) { |
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350 return (canonicalizeCodebase |
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351 (new CodeSource(location, certs), |
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352 false)); |
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353 } else { |
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354 return (canonicalizeCodebase |
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355 (new SubjectCodeSource(null, ge.principals, location, certs), |
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356 false)); |
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357 } |
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358 } |
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359 |
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360 /** |
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361 * Add one policy entry to the vector. |
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362 */ |
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363 private void addGrantEntry(GrantEntry ge, KeyStore keyStore) { |
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364 |
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365 if (debug != null) { |
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366 debug.println("Adding policy entry: "); |
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367 debug.println(" signedBy " + ge.signedBy); |
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368 debug.println(" codeBase " + ge.codeBase); |
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369 if (ge.principals != null) { |
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370 for (PrincipalEntry pppe : ge.principals) { |
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371 debug.println(" " + pppe.getPrincipalClass() + |
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372 " " + pppe.getPrincipalName()); |
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373 } |
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374 } |
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375 debug.println(); |
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376 } |
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377 |
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378 try { |
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379 CodeSource codesource = getCodeSource(ge, keyStore); |
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380 // skip if signedBy alias was unknown... |
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381 if (codesource == null) return; |
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382 |
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383 PolicyEntry entry = new PolicyEntry(codesource); |
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384 Enumeration<PermissionEntry> enum_ = ge.permissionElements(); |
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385 while (enum_.hasMoreElements()) { |
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386 PermissionEntry pe = enum_.nextElement(); |
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387 try { |
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388 // XXX special case PrivateCredentialPermission-SELF |
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389 Permission perm; |
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390 if (pe.permission.equals |
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391 ("javax.security.auth.PrivateCredentialPermission") && |
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392 pe.name.endsWith(" self")) { |
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393 perm = getInstance(pe.permission, |
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394 pe.name + " \"self\"", |
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395 pe.action); |
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396 } else { |
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397 perm = getInstance(pe.permission, |
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398 pe.name, |
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399 pe.action); |
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400 } |
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401 entry.add(perm); |
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402 if (debug != null) { |
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403 debug.println(" "+perm); |
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404 } |
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405 } catch (ClassNotFoundException cnfe) { |
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406 Certificate certs[]; |
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407 if (pe.signedBy != null) { |
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408 certs = getCertificates(keyStore, pe.signedBy); |
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409 } else { |
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410 certs = null; |
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411 } |
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412 |
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413 // only add if we had no signer or we had a |
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414 // a signer and found the keys for it. |
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415 if (certs != null || pe.signedBy == null) { |
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416 Permission perm = new UnresolvedPermission( |
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417 pe.permission, |
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418 pe.name, |
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419 pe.action, |
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420 certs); |
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421 entry.add(perm); |
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422 if (debug != null) { |
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423 debug.println(" "+perm); |
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424 } |
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425 } |
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426 } catch (java.lang.reflect.InvocationTargetException ite) { |
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427 System.err.println |
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428 (AUTH_POLICY + |
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429 rb.getString(".error.adding.Permission.") + |
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430 pe.permission + |
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431 rb.getString("SPACE") + |
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432 ite.getTargetException()); |
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433 } catch (Exception e) { |
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434 System.err.println |
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435 (AUTH_POLICY + |
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436 rb.getString(".error.adding.Permission.") + |
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437 pe.permission + |
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438 rb.getString("SPACE") + |
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439 e); |
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440 } |
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441 } |
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442 policyEntries.addElement(entry); |
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443 } catch (Exception e) { |
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444 System.err.println |
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445 (AUTH_POLICY + |
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446 rb.getString(".error.adding.Entry.") + |
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447 ge + |
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448 rb.getString("SPACE") + |
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449 e); |
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450 } |
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451 |
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452 if (debug != null) { |
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453 debug.println(); |
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454 } |
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455 } |
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456 |
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457 /** |
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458 * Returns a new Permission object of the given Type. The Permission is |
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459 * created by getting the |
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460 * Class object using the <code>Class.forName</code> method, and using |
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461 * the reflection API to invoke the (String name, String actions) |
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462 * constructor on the |
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463 * object. |
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464 * |
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465 * @param type the type of Permission being created. |
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466 * @param name the name of the Permission being created. |
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467 * @param actions the actions of the Permission being created. |
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468 * |
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469 * @exception ClassNotFoundException if the particular Permission |
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470 * class could not be found. |
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471 * |
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472 * @exception IllegalAccessException if the class or initializer is |
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473 * not accessible. |
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474 * |
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475 * @exception InstantiationException if getInstance tries to |
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476 * instantiate an abstract class or an interface, or if the |
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477 * instantiation fails for some other reason. |
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478 * |
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479 * @exception NoSuchMethodException if the (String, String) constructor |
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480 * is not found. |
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481 * |
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482 * @exception InvocationTargetException if the underlying Permission |
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483 * constructor throws an exception. |
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484 * |
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485 */ |
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486 private static final Permission getInstance(String type, |
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487 String name, |
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488 String actions) |
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489 throws ClassNotFoundException, |
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490 InstantiationException, |
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491 IllegalAccessException, |
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492 NoSuchMethodException, |
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493 InvocationTargetException |
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494 { |
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495 //XXX we might want to keep a hash of created factories... |
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496 Class<?> pc = Class.forName(type); |
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497 Constructor<?> c = pc.getConstructor(PARAMS); |
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498 return (Permission) c.newInstance(new Object[] { name, actions }); |
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499 } |
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500 |
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501 /** |
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502 * Fetch all certs associated with this alias. |
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503 */ |
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504 Certificate[] getCertificates(KeyStore keyStore, String aliases) { |
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505 |
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506 Vector<Certificate> vcerts = null; |
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507 |
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508 StringTokenizer st = new StringTokenizer(aliases, ","); |
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509 int n = 0; |
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510 |
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511 while (st.hasMoreTokens()) { |
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512 String alias = st.nextToken().trim(); |
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513 n++; |
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514 Certificate cert = null; |
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515 // See if this alias's cert has already been cached |
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516 cert = (Certificate) aliasMapping.get(alias); |
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517 if (cert == null && keyStore != null) { |
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518 |
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519 try { |
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520 cert = keyStore.getCertificate(alias); |
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521 } catch (KeyStoreException kse) { |
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522 // never happens, because keystore has already been loaded |
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523 // when we call this |
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524 } |
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525 if (cert != null) { |
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526 aliasMapping.put(alias, cert); |
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527 aliasMapping.put(cert, alias); |
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528 } |
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529 } |
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530 |
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531 if (cert != null) { |
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532 if (vcerts == null) { |
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533 vcerts = new Vector<Certificate>(); |
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534 } |
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535 vcerts.addElement(cert); |
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536 } |
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537 } |
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538 |
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539 // make sure n == vcerts.size, since we are doing a logical *and* |
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540 if (vcerts != null && n == vcerts.size()) { |
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541 Certificate[] certs = new Certificate[vcerts.size()]; |
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542 vcerts.copyInto(certs); |
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543 return certs; |
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544 } else { |
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545 return null; |
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546 } |
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547 } |
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548 |
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549 /** |
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550 * Enumerate all the entries in the global policy object. |
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551 * This method is used by policy admin tools. The tools |
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552 * should use the Enumeration methods on the returned object |
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553 * to fetch the elements sequentially. |
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554 */ |
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555 private final synchronized Enumeration<PolicyEntry> elements() { |
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556 return policyEntries.elements(); |
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557 } |
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558 |
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559 @Override |
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560 public PermissionCollection getPermissions(final Subject subject, |
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561 final CodeSource codesource) { |
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562 |
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563 // 1) if code instantiates PolicyFile directly, then it will need |
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564 // all the permissions required for the PolicyFile initialization |
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565 // 2) if code calls Policy.getPolicy, then it simply needs |
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566 // AuthPermission(getPolicy), and the javax.security.auth.Policy |
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567 // implementation instantiates PolicyFile in a doPrivileged block |
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568 // 3) if after instantiating a Policy (either via #1 or #2), |
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569 // code calls getPermissions, PolicyFile wraps the call |
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570 // in a doPrivileged block. |
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571 return AccessController.doPrivileged |
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572 (new PrivilegedAction<PermissionCollection>() { |
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573 @Override public PermissionCollection run() { |
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574 SubjectCodeSource scs = new SubjectCodeSource( |
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575 subject, null, |
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576 codesource == null ? null : codesource.getLocation(), |
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577 codesource == null ? null : codesource.getCertificates()); |
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578 if (initialized) { |
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579 return getPermissions(new Permissions(), scs); |
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580 } else { |
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581 return new PolicyPermissions(AuthPolicyFile.this, scs); |
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582 } |
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583 } |
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584 }); |
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585 } |
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586 |
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587 /** |
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588 * Examines the global policy for the specified CodeSource, and |
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589 * creates a PermissionCollection object with |
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590 * the set of permissions for that principal's protection domain. |
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591 * |
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592 * @param CodeSource the codesource associated with the caller. |
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593 * This encapsulates the original location of the code (where the code |
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594 * came from) and the public key(s) of its signer. |
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595 * |
|
596 * @return the set of permissions according to the policy. |
|
597 */ |
|
598 PermissionCollection getPermissions(CodeSource codesource) { |
|
599 |
|
600 if (initialized) { |
|
601 return getPermissions(new Permissions(), codesource); |
|
602 } else { |
|
603 return new PolicyPermissions(this, codesource); |
|
604 } |
|
605 } |
|
606 |
|
607 /** |
|
608 * Examines the global policy for the specified CodeSource, and |
|
609 * creates a PermissionCollection object with |
|
610 * the set of permissions for that principal's protection domain. |
|
611 * |
|
612 * @param permissions the permissions to populate |
|
613 * @param codesource the codesource associated with the caller. |
|
614 * This encapsulates the original location of the code (where the code |
|
615 * came from) and the public key(s) of its signer. |
|
616 * |
|
617 * @return the set of permissions according to the policy. |
|
618 */ |
|
619 Permissions getPermissions(final Permissions perms, |
|
620 final CodeSource cs) |
|
621 { |
|
622 if (!initialized) { |
|
623 init(); |
|
624 } |
|
625 |
|
626 final CodeSource codesource[] = {null}; |
|
627 |
|
628 codesource[0] = canonicalizeCodebase(cs, true); |
|
629 |
|
630 if (debug != null) { |
|
631 debug.println("evaluate(" + codesource[0] + ")\n"); |
|
632 } |
|
633 |
|
634 // needs to be in a begin/endPrivileged block because |
|
635 // codesource.implies calls URL.equals which does an |
|
636 // InetAddress lookup |
|
637 |
|
638 for (int i = 0; i < policyEntries.size(); i++) { |
|
639 |
|
640 PolicyEntry entry = policyEntries.elementAt(i); |
|
641 |
|
642 if (debug != null) { |
|
643 debug.println("PolicyFile CodeSource implies: " + |
|
644 entry.codesource.toString() + "\n\n" + |
|
645 "\t" + codesource[0].toString() + "\n\n"); |
|
646 } |
|
647 |
|
648 if (entry.codesource.implies(codesource[0])) { |
|
649 for (int j = 0; j < entry.permissions.size(); j++) { |
|
650 Permission p = entry.permissions.elementAt(j); |
|
651 if (debug != null) { |
|
652 debug.println(" granting " + p); |
|
653 } |
|
654 if (!addSelfPermissions(p, entry.codesource, |
|
655 codesource[0], perms)) { |
|
656 // we could check for duplicates |
|
657 // before adding new permissions, |
|
658 // but the SubjectDomainCombiner |
|
659 // already checks for duplicates later |
|
660 perms.add(p); |
|
661 } |
|
662 } |
|
663 } |
|
664 } |
|
665 |
|
666 // now see if any of the keys are trusted ids. |
|
667 |
|
668 if (!ignoreIdentityScope) { |
|
669 Certificate certs[] = codesource[0].getCertificates(); |
|
670 if (certs != null) { |
|
671 for (int k=0; k < certs.length; k++) { |
|
672 if (aliasMapping.get(certs[k]) == null && |
|
673 checkForTrustedIdentity(certs[k])) { |
|
674 // checkForTrustedIdentity added it |
|
675 // to the policy for us. next time |
|
676 // around we'll find it. This time |
|
677 // around we need to add it. |
|
678 perms.add(new java.security.AllPermission()); |
|
679 } |
|
680 } |
|
681 } |
|
682 } |
|
683 return perms; |
|
684 } |
|
685 |
|
686 /** |
|
687 * Returns true if 'Self' permissions were added to the provided |
|
688 * 'perms', and false otherwise. |
|
689 * |
|
690 * <p> |
|
691 * |
|
692 * @param p check to see if this Permission is a "SELF" |
|
693 * PrivateCredentialPermission. <p> |
|
694 * |
|
695 * @param entryCs the codesource for the Policy entry. |
|
696 * |
|
697 * @param accCs the codesource for from the current AccessControlContext. |
|
698 * |
|
699 * @param perms the PermissionCollection where the individual |
|
700 * PrivateCredentialPermissions will be added. |
|
701 */ |
|
702 private boolean addSelfPermissions(final Permission p, |
|
703 CodeSource entryCs, |
|
704 CodeSource accCs, |
|
705 Permissions perms) { |
|
706 |
|
707 if (!(p instanceof PrivateCredentialPermission)) { |
|
708 return false; |
|
709 } |
|
710 |
|
711 if (!(entryCs instanceof SubjectCodeSource)) { |
|
712 return false; |
|
713 } |
|
714 |
|
715 PrivateCredentialPermission pcp = (PrivateCredentialPermission)p; |
|
716 SubjectCodeSource scs = (SubjectCodeSource)entryCs; |
|
717 |
|
718 // see if it is a SELF permission |
|
719 String[][] pPrincipals = pcp.getPrincipals(); |
|
720 if (pPrincipals.length <= 0 || |
|
721 !pPrincipals[0][0].equalsIgnoreCase("self") || |
|
722 !pPrincipals[0][1].equalsIgnoreCase("self")) { |
|
723 |
|
724 // regular PrivateCredentialPermission |
|
725 return false; |
|
726 } else { |
|
727 |
|
728 // granted a SELF permission - create a |
|
729 // PrivateCredentialPermission for each |
|
730 // of the Policy entry's CodeSource Principals |
|
731 |
|
732 if (scs.getPrincipals() == null) { |
|
733 // XXX SubjectCodeSource has no Subject??? |
|
734 return true; |
|
735 } |
|
736 |
|
737 for (PrincipalEntry principal : scs.getPrincipals()) { |
|
738 |
|
739 // if the Policy entry's Principal does not contain a |
|
740 // WILDCARD for the Principal name, then a |
|
741 // new PrivateCredentialPermission is created |
|
742 // for the Principal listed in the Policy entry. |
|
743 // if the Policy entry's Principal contains a WILDCARD |
|
744 // for the Principal name, then a new |
|
745 // PrivateCredentialPermission is created |
|
746 // for each Principal associated with the Subject |
|
747 // in the current ACC. |
|
748 |
|
749 String[][] principalInfo = getPrincipalInfo(principal, accCs); |
|
750 |
|
751 for (int i = 0; i < principalInfo.length; i++) { |
|
752 |
|
753 // here's the new PrivateCredentialPermission |
|
754 |
|
755 PrivateCredentialPermission newPcp = |
|
756 new PrivateCredentialPermission |
|
757 (pcp.getCredentialClass() + |
|
758 " " + |
|
759 principalInfo[i][0] + |
|
760 " " + |
|
761 "\"" + principalInfo[i][1] + "\"", |
|
762 "read"); |
|
763 |
|
764 if (debug != null) { |
|
765 debug.println("adding SELF permission: " + |
|
766 newPcp.toString()); |
|
767 } |
|
768 |
|
769 perms.add(newPcp); |
|
770 } |
|
771 } |
|
772 } |
|
773 return true; |
|
774 } |
|
775 |
|
776 /** |
|
777 * return the principal class/name pair in the 2D array. |
|
778 * array[x][y]: x corresponds to the array length. |
|
779 * if (y == 0), it's the principal class. |
|
780 * if (y == 1), it's the principal name. |
|
781 */ |
|
782 private String[][] getPrincipalInfo(PrincipalEntry principal, |
|
783 final CodeSource accCs) { |
|
784 |
|
785 // there are 3 possibilities: |
|
786 // 1) the entry's Principal class and name are not wildcarded |
|
787 // 2) the entry's Principal name is wildcarded only |
|
788 // 3) the entry's Principal class and name are wildcarded |
|
789 |
|
790 if (!principal.getPrincipalClass().equals |
|
791 (PrincipalEntry.WILDCARD_CLASS) && |
|
792 !principal.getPrincipalName().equals |
|
793 (PrincipalEntry.WILDCARD_NAME)) { |
|
794 |
|
795 // build a PrivateCredentialPermission for the principal |
|
796 // from the Policy entry |
|
797 String[][] info = new String[1][2]; |
|
798 info[0][0] = principal.getPrincipalClass(); |
|
799 info[0][1] = principal.getPrincipalName(); |
|
800 return info; |
|
801 |
|
802 } else if (!principal.getPrincipalClass().equals |
|
803 (PrincipalEntry.WILDCARD_CLASS) && |
|
804 principal.getPrincipalName().equals |
|
805 (PrincipalEntry.WILDCARD_NAME)) { |
|
806 |
|
807 // build a PrivateCredentialPermission for all |
|
808 // the Subject's principals that are instances of principalClass |
|
809 |
|
810 // the accCs is guaranteed to be a SubjectCodeSource |
|
811 // because the earlier CodeSource.implies succeeded |
|
812 SubjectCodeSource scs = (SubjectCodeSource)accCs; |
|
813 |
|
814 Set<? extends Principal> principalSet = null; |
|
815 try { |
|
816 // principal.principalClass should extend Principal |
|
817 // If it doesn't, we should stop here with a ClassCastException. |
|
818 @SuppressWarnings("unchecked") |
|
819 Class<? extends Principal> pClass = (Class<? extends Principal>) |
|
820 Class.forName(principal.getPrincipalClass(), false, |
|
821 ClassLoader.getSystemClassLoader()); |
|
822 principalSet = scs.getSubject().getPrincipals(pClass); |
|
823 } catch (Exception e) { |
|
824 if (debug != null) { |
|
825 debug.println("problem finding Principal Class " + |
|
826 "when expanding SELF permission: " + |
|
827 e.toString()); |
|
828 } |
|
829 } |
|
830 |
|
831 if (principalSet == null) { |
|
832 // error |
|
833 return new String[0][0]; |
|
834 } |
|
835 |
|
836 String[][] info = new String[principalSet.size()][2]; |
|
837 |
|
838 int i = 0; |
|
839 for (Principal p : principalSet) { |
|
840 info[i][0] = p.getClass().getName(); |
|
841 info[i][1] = p.getName(); |
|
842 i++; |
|
843 } |
|
844 return info; |
|
845 |
|
846 } else { |
|
847 |
|
848 // build a PrivateCredentialPermission for every |
|
849 // one of the current Subject's principals |
|
850 |
|
851 // the accCs is guaranteed to be a SubjectCodeSource |
|
852 // because the earlier CodeSource.implies succeeded |
|
853 SubjectCodeSource scs = (SubjectCodeSource)accCs; |
|
854 Set<Principal> principalSet = scs.getSubject().getPrincipals(); |
|
855 |
|
856 String[][] info = new String[principalSet.size()][2]; |
|
857 |
|
858 int i = 0; |
|
859 for (Principal p : principalSet) { |
|
860 info[i][0] = p.getClass().getName(); |
|
861 info[i][1] = p.getName(); |
|
862 i++; |
|
863 } |
|
864 return info; |
|
865 } |
|
866 } |
|
867 |
|
868 /* |
|
869 * Returns the signer certificates from the list of certificates associated |
|
870 * with the given code source. |
|
871 * |
|
872 * The signer certificates are those certificates that were used to verify |
|
873 * signed code originating from the codesource location. |
|
874 * |
|
875 * This method assumes that in the given code source, each signer |
|
876 * certificate is followed by its supporting certificate chain |
|
877 * (which may be empty), and that the signer certificate and its |
|
878 * supporting certificate chain are ordered bottom-to-top (i.e., with the |
|
879 * signer certificate first and the (root) certificate authority last). |
|
880 */ |
|
881 Certificate[] getSignerCertificates(CodeSource cs) { |
|
882 Certificate[] certs = null; |
|
883 if ((certs = cs.getCertificates()) == null) { |
|
884 return null; |
|
885 } |
|
886 for (int i = 0; i < certs.length; i++) { |
|
887 if (!(certs[i] instanceof X509Certificate)) |
|
888 return cs.getCertificates(); |
|
889 } |
|
890 |
|
891 // Do we have to do anything? |
|
892 int i = 0; |
|
893 int count = 0; |
|
894 while (i < certs.length) { |
|
895 count++; |
|
896 while (((i+1) < certs.length) |
|
897 && ((X509Certificate)certs[i]).getIssuerDN().equals( |
|
898 ((X509Certificate)certs[i+1]).getSubjectDN())) { |
|
899 i++; |
|
900 } |
|
901 i++; |
|
902 } |
|
903 if (count == certs.length) { |
|
904 // Done |
|
905 return certs; |
|
906 } |
|
907 |
|
908 ArrayList<Certificate> userCertList = new ArrayList<>(); |
|
909 i = 0; |
|
910 while (i < certs.length) { |
|
911 userCertList.add(certs[i]); |
|
912 while (((i+1) < certs.length) |
|
913 && ((X509Certificate)certs[i]).getIssuerDN().equals( |
|
914 ((X509Certificate)certs[i+1]).getSubjectDN())) { |
|
915 i++; |
|
916 } |
|
917 i++; |
|
918 } |
|
919 Certificate[] userCerts = new Certificate[userCertList.size()]; |
|
920 userCertList.toArray(userCerts); |
|
921 return userCerts; |
|
922 } |
|
923 |
|
924 private CodeSource canonicalizeCodebase(CodeSource cs, |
|
925 boolean extractSignerCerts) { |
|
926 CodeSource canonCs = cs; |
|
927 if (cs.getLocation() != null && |
|
928 cs.getLocation().getProtocol().equalsIgnoreCase("file")) { |
|
929 try { |
|
930 String path = cs.getLocation().getFile().replace |
|
931 ('/', |
|
932 File.separatorChar); |
|
933 URL csUrl = null; |
|
934 if (path.endsWith("*")) { |
|
935 // remove trailing '*' because it causes canonicalization |
|
936 // to fail on win32 |
|
937 path = path.substring(0, path.length()-1); |
|
938 boolean appendFileSep = false; |
|
939 if (path.endsWith(File.separator)) { |
|
940 appendFileSep = true; |
|
941 } |
|
942 if (path.equals("")) { |
|
943 path = System.getProperty("user.dir"); |
|
944 } |
|
945 File f = new File(path); |
|
946 path = f.getCanonicalPath(); |
|
947 StringBuffer sb = new StringBuffer(path); |
|
948 // reappend '*' to canonicalized filename (note that |
|
949 // canonicalization may have removed trailing file |
|
950 // separator, so we have to check for that, too) |
|
951 if (!path.endsWith(File.separator) && |
|
952 (appendFileSep || f.isDirectory())) { |
|
953 sb.append(File.separatorChar); |
|
954 } |
|
955 sb.append('*'); |
|
956 path = sb.toString(); |
|
957 } else { |
|
958 path = new File(path).getCanonicalPath(); |
|
959 } |
|
960 csUrl = new File(path).toURL(); |
|
961 |
|
962 if (cs instanceof SubjectCodeSource) { |
|
963 SubjectCodeSource scs = (SubjectCodeSource)cs; |
|
964 if (extractSignerCerts) { |
|
965 canonCs = new SubjectCodeSource(scs.getSubject(), |
|
966 scs.getPrincipals(), |
|
967 csUrl, |
|
968 getSignerCertificates(scs)); |
|
969 } else { |
|
970 canonCs = new SubjectCodeSource(scs.getSubject(), |
|
971 scs.getPrincipals(), |
|
972 csUrl, |
|
973 scs.getCertificates()); |
|
974 } |
|
975 } else { |
|
976 if (extractSignerCerts) { |
|
977 canonCs = new CodeSource(csUrl, |
|
978 getSignerCertificates(cs)); |
|
979 } else { |
|
980 canonCs = new CodeSource(csUrl, |
|
981 cs.getCertificates()); |
|
982 } |
|
983 } |
|
984 } catch (IOException ioe) { |
|
985 // leave codesource as it is, unless we have to extract its |
|
986 // signer certificates |
|
987 if (extractSignerCerts) { |
|
988 if (!(cs instanceof SubjectCodeSource)) { |
|
989 canonCs = new CodeSource(cs.getLocation(), |
|
990 getSignerCertificates(cs)); |
|
991 } else { |
|
992 SubjectCodeSource scs = (SubjectCodeSource)cs; |
|
993 canonCs = new SubjectCodeSource(scs.getSubject(), |
|
994 scs.getPrincipals(), |
|
995 scs.getLocation(), |
|
996 getSignerCertificates(scs)); |
|
997 } |
|
998 } |
|
999 } |
|
1000 } else { |
|
1001 if (extractSignerCerts) { |
|
1002 if (!(cs instanceof SubjectCodeSource)) { |
|
1003 canonCs = new CodeSource(cs.getLocation(), |
|
1004 getSignerCertificates(cs)); |
|
1005 } else { |
|
1006 SubjectCodeSource scs = (SubjectCodeSource)cs; |
|
1007 canonCs = new SubjectCodeSource(scs.getSubject(), |
|
1008 scs.getPrincipals(), |
|
1009 scs.getLocation(), |
|
1010 getSignerCertificates(scs)); |
|
1011 } |
|
1012 } |
|
1013 } |
|
1014 return canonCs; |
|
1015 } |
|
1016 |
|
1017 /** |
|
1018 * Each entry in the policy configuration file is represented by a |
|
1019 * PolicyEntry object. <p> |
|
1020 * |
|
1021 * A PolicyEntry is a (CodeSource,Permission) pair. The |
|
1022 * CodeSource contains the (URL, PublicKey) that together identify |
|
1023 * where the Java bytecodes come from and who (if anyone) signed |
|
1024 * them. The URL could refer to localhost. The URL could also be |
|
1025 * null, meaning that this policy entry is given to all comers, as |
|
1026 * long as they match the signer field. The signer could be null, |
|
1027 * meaning the code is not signed. <p> |
|
1028 * |
|
1029 * The Permission contains the (Type, Name, Action) triplet. <p> |
|
1030 * |
|
1031 * For now, the Policy object retrieves the public key from the |
|
1032 * X.509 certificate on disk that corresponds to the signedBy |
|
1033 * alias specified in the Policy config file. For reasons of |
|
1034 * efficiency, the Policy object keeps a hashtable of certs already |
|
1035 * read in. This could be replaced by a secure internal key |
|
1036 * store. |
|
1037 * |
|
1038 * <p> |
|
1039 * For example, the entry |
|
1040 * <pre> |
|
1041 * permission java.io.File "/tmp", "read,write", |
|
1042 * signedBy "Duke"; |
|
1043 * </pre> |
|
1044 * is represented internally |
|
1045 * <pre> |
|
1046 * |
|
1047 * FilePermission f = new FilePermission("/tmp", "read,write"); |
|
1048 * PublicKey p = publickeys.get("Duke"); |
|
1049 * URL u = InetAddress.getLocalHost(); |
|
1050 * CodeBase c = new CodeBase( p, u ); |
|
1051 * pe = new PolicyEntry(f, c); |
|
1052 * </pre> |
|
1053 * |
|
1054 * @author Marianne Mueller |
|
1055 * @author Roland Schemers |
|
1056 * @see java.security.CodeSource |
|
1057 * @see java.security.Policy |
|
1058 * @see java.security.Permissions |
|
1059 * @see java.security.ProtectionDomain |
|
1060 */ |
|
1061 private static class PolicyEntry { |
|
1062 |
|
1063 CodeSource codesource; |
|
1064 Vector<Permission> permissions; |
|
1065 |
|
1066 /** |
|
1067 * Given a Permission and a CodeSource, create a policy entry. |
|
1068 * |
|
1069 * XXX Decide if/how to add validity fields and "purpose" fields to |
|
1070 * XXX policy entries |
|
1071 * |
|
1072 * @param cs the CodeSource, which encapsulates the URL and the public |
|
1073 * key attributes from the policy config file. Validity checks |
|
1074 * are performed on the public key before PolicyEntry is called. |
|
1075 * |
|
1076 */ |
|
1077 PolicyEntry(CodeSource cs) { |
|
1078 this.codesource = cs; |
|
1079 this.permissions = new Vector<Permission>(); |
|
1080 } |
|
1081 |
|
1082 /** |
|
1083 * add a Permission object to this entry. |
|
1084 */ |
|
1085 void add(Permission p) { |
|
1086 permissions.addElement(p); |
|
1087 } |
|
1088 |
|
1089 /** |
|
1090 * Return the CodeSource for this policy entry |
|
1091 */ |
|
1092 CodeSource getCodeSource() { |
|
1093 return this.codesource; |
|
1094 } |
|
1095 |
|
1096 @Override |
|
1097 public String toString(){ |
|
1098 StringBuffer sb = new StringBuffer(); |
|
1099 sb.append(rb.getString("LPARAM")); |
|
1100 sb.append(getCodeSource()); |
|
1101 sb.append("\n"); |
|
1102 for (int j = 0; j < permissions.size(); j++) { |
|
1103 Permission p = permissions.elementAt(j); |
|
1104 sb.append(rb.getString("SPACE")); |
|
1105 sb.append(rb.getString("SPACE")); |
|
1106 sb.append(p); |
|
1107 sb.append(rb.getString("NEWLINE")); |
|
1108 } |
|
1109 sb.append(rb.getString("RPARAM")); |
|
1110 sb.append(rb.getString("NEWLINE")); |
|
1111 return sb.toString(); |
|
1112 } |
|
1113 |
|
1114 } |
|
1115 } |
|
1116 |
|
1117 @SuppressWarnings("deprecation") |
|
1118 class PolicyPermissions extends PermissionCollection { |
|
1119 |
|
1120 private static final long serialVersionUID = -1954188373270545523L; |
|
1121 |
|
1122 private CodeSource codesource; |
|
1123 private Permissions perms; |
|
1124 private AuthPolicyFile policy; |
|
1125 private boolean notInit; // have we pulled in the policy permissions yet? |
|
1126 private Vector<Permission> additionalPerms; |
|
1127 |
|
1128 PolicyPermissions(AuthPolicyFile policy, |
|
1129 CodeSource codesource) |
|
1130 { |
|
1131 this.codesource = codesource; |
|
1132 this.policy = policy; |
|
1133 this.perms = null; |
|
1134 this.notInit = true; |
|
1135 this.additionalPerms = null; |
|
1136 } |
|
1137 |
|
1138 @Override |
|
1139 public void add(Permission permission) { |
|
1140 if (isReadOnly()) |
|
1141 throw new SecurityException |
|
1142 (AuthPolicyFile.rb.getString |
|
1143 ("attempt.to.add.a.Permission.to.a.readonly.PermissionCollection")); |
|
1144 |
|
1145 if (perms == null) { |
|
1146 if (additionalPerms == null) { |
|
1147 additionalPerms = new Vector<Permission>(); |
|
1148 } |
|
1149 additionalPerms.add(permission); |
|
1150 } else { |
|
1151 perms.add(permission); |
|
1152 } |
|
1153 } |
|
1154 |
|
1155 private synchronized void init() { |
|
1156 if (notInit) { |
|
1157 if (perms == null) { |
|
1158 perms = new Permissions(); |
|
1159 } |
|
1160 if (additionalPerms != null) { |
|
1161 Enumeration<Permission> e = additionalPerms.elements(); |
|
1162 while (e.hasMoreElements()) { |
|
1163 perms.add(e.nextElement()); |
|
1164 } |
|
1165 additionalPerms = null; |
|
1166 } |
|
1167 policy.getPermissions(perms, codesource); |
|
1168 notInit = false; |
|
1169 } |
|
1170 } |
|
1171 |
|
1172 @Override |
|
1173 public boolean implies(Permission permission) { |
|
1174 if (notInit) { |
|
1175 init(); |
|
1176 } |
|
1177 return perms.implies(permission); |
|
1178 } |
|
1179 |
|
1180 @Override |
|
1181 public Enumeration<Permission> elements() { |
|
1182 if (notInit) { |
|
1183 init(); |
|
1184 } |
|
1185 return perms.elements(); |
|
1186 } |
|
1187 |
|
1188 @Override |
|
1189 public String toString() { |
|
1190 if (notInit) { |
|
1191 init(); |
|
1192 } |
|
1193 return perms.toString(); |
|
1194 } |
|
1195 } |