J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005-2006 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package sun.security.jgss; |
| 27 | |
| 28 | import java.util.HashMap; |
| 29 | import javax.security.auth.login.AppConfigurationEntry; |
| 30 | import javax.security.auth.login.Configuration; |
| 31 | import org.ietf.jgss.Oid; |
| 32 | |
| 33 | /** |
| 34 | * A Configuration implementation especially designed for JGSS. |
| 35 | * |
| 36 | * @author weijun.wang |
| 37 | * @since 1.6 |
| 38 | */ |
| 39 | public class LoginConfigImpl extends Configuration { |
| 40 | |
| 41 | private final Configuration config; |
| 42 | private final int caller; |
| 43 | private final String mechName; |
| 44 | private static final sun.security.util.Debug debug = |
| 45 | sun.security.util.Debug.getInstance("gssloginconfig", "\t[GSS LoginConfigImpl]"); |
| 46 | |
| 47 | /** |
| 48 | * A new instance of LoginConfigImpl must be created for each login request |
| 49 | * since it's only used by a single (caller, mech) pair |
| 50 | * @param caller defined in GSSUtil as CALLER_XXX final fields |
| 51 | * @param oid defined in GSSUtil as XXX_MECH_OID final fields |
| 52 | */ |
| 53 | public LoginConfigImpl(int caller, Oid mech) { |
| 54 | |
| 55 | this.caller = caller; |
| 56 | |
| 57 | if (mech.equals(GSSUtil.GSS_KRB5_MECH_OID)) { |
| 58 | mechName = "krb5"; |
| 59 | } else { |
| 60 | throw new IllegalArgumentException(mech.toString() + " not supported"); |
| 61 | } |
| 62 | config = java.security.AccessController.doPrivileged |
| 63 | (new java.security.PrivilegedAction <Configuration> () { |
| 64 | public Configuration run() { |
| 65 | return Configuration.getConfiguration(); |
| 66 | } |
| 67 | }); |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * @param name Almost useless, since the (caller, mech) is already passed |
| 72 | * into constructor. The only use will be detecting OTHER which |
| 73 | * is called in LoginContext |
| 74 | */ |
| 75 | public AppConfigurationEntry[] getAppConfigurationEntry(String name) { |
| 76 | |
| 77 | AppConfigurationEntry[] entries = null; |
| 78 | |
| 79 | // This is the second call from LoginContext, which we will just ignore |
| 80 | if ("OTHER".equalsIgnoreCase(name)) { |
| 81 | return null; |
| 82 | } |
| 83 | |
| 84 | String[] alts = null; |
| 85 | |
| 86 | // Compatibility: |
| 87 | // For the 4 old callers, old entry names will be used if the new |
| 88 | // entry name is not provided. |
| 89 | |
| 90 | if ("krb5".equals(mechName)) { |
| 91 | switch (caller) { |
| 92 | case GSSUtil.CALLER_INITIATE: |
| 93 | alts = new String[] { |
| 94 | "com.sun.security.jgss.krb5.initiate", |
| 95 | "com.sun.security.jgss.initiate", |
| 96 | }; |
| 97 | break; |
| 98 | case GSSUtil.CALLER_ACCEPT: |
| 99 | alts = new String[] { |
| 100 | "com.sun.security.jgss.krb5.accept", |
| 101 | "com.sun.security.jgss.accept", |
| 102 | }; |
| 103 | break; |
| 104 | case GSSUtil.CALLER_SSL_CLIENT: |
| 105 | alts = new String[] { |
| 106 | "com.sun.security.jgss.krb5.initiate", |
| 107 | "com.sun.net.ssl.client", |
| 108 | }; |
| 109 | break; |
| 110 | case GSSUtil.CALLER_SSL_SERVER: |
| 111 | alts = new String[] { |
| 112 | "com.sun.security.jgss.krb5.accept", |
| 113 | "com.sun.net.ssl.server", |
| 114 | }; |
| 115 | break; |
| 116 | case GSSUtil.CALLER_HTTP_NEGOTIATE: |
| 117 | alts = new String[] { |
| 118 | "com.sun.security.jgss.krb5.initiate", |
| 119 | }; |
| 120 | break; |
| 121 | case GSSUtil.CALLER_UNKNOWN: |
| 122 | // should never use |
| 123 | throw new AssertionError("caller cannot be unknown"); |
| 124 | default: |
| 125 | throw new AssertionError("caller not defined"); |
| 126 | } |
| 127 | } else { |
| 128 | throw new IllegalArgumentException(mechName + " not supported"); |
| 129 | // No other mech at the moment, maybe -- |
| 130 | /* |
| 131 | switch (caller) { |
| 132 | case GSSUtil.CALLER_INITIATE: |
| 133 | case GSSUtil.CALLER_SSL_CLIENT: |
| 134 | case GSSUtil.CALLER_HTTP_NEGOTIATE: |
| 135 | alts = new String[] { |
| 136 | "com.sun.security.jgss." + mechName + ".initiate", |
| 137 | }; |
| 138 | break; |
| 139 | case GSSUtil.CALLER_ACCEPT: |
| 140 | case GSSUtil.CALLER_SSL_SERVER: |
| 141 | alts = new String[] { |
| 142 | "com.sun.security.jgss." + mechName + ".accept", |
| 143 | }; |
| 144 | break; |
| 145 | case GSSUtil.CALLER_UNKNOWN: |
| 146 | // should never use |
| 147 | throw new AssertionError("caller cannot be unknown"); |
| 148 | default: |
| 149 | throw new AssertionError("caller not defined"); |
| 150 | } |
| 151 | */ |
| 152 | } |
| 153 | for (String alt: alts) { |
| 154 | entries = config.getAppConfigurationEntry(alt); |
| 155 | if (debug != null) { |
| 156 | debug.println("Trying " + alt + |
| 157 | ((entries == null)?": does not exist.":": Found!")); |
| 158 | } |
| 159 | if (entries != null) { |
| 160 | break; |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | if (entries == null) { |
| 165 | if (debug != null) { |
| 166 | debug.println("Cannot read JGSS entry, use default values instead."); |
| 167 | } |
| 168 | entries = getDefaultConfigurationEntry(); |
| 169 | } |
| 170 | return entries; |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Default value for a caller-mech pair when no entry is defined in |
| 175 | * the system-wide Configuration object. |
| 176 | */ |
| 177 | private AppConfigurationEntry[] getDefaultConfigurationEntry() { |
| 178 | HashMap <String, String> options = new HashMap <String, String> (2); |
| 179 | |
| 180 | if (mechName == null || mechName.equals("krb5")) { |
| 181 | if (isServerSide(caller)) { |
| 182 | // Assuming the keytab file can be found through |
| 183 | // krb5 config file or under user home directory |
| 184 | options.put("useKeyTab", "true"); |
| 185 | options.put("storeKey", "true"); |
| 186 | options.put("doNotPrompt", "true"); |
| 187 | options.put("isInitiator", "false"); |
| 188 | } else { |
| 189 | options.put("useTicketCache", "true"); |
| 190 | options.put("doNotPrompt", "false"); |
| 191 | } |
| 192 | return new AppConfigurationEntry[] { |
| 193 | new AppConfigurationEntry( |
| 194 | "com.sun.security.auth.module.Krb5LoginModule", |
| 195 | AppConfigurationEntry.LoginModuleControlFlag.REQUIRED, |
| 196 | options) |
| 197 | }; |
| 198 | } |
| 199 | return null; |
| 200 | } |
| 201 | |
| 202 | private static boolean isServerSide (int caller) { |
| 203 | return GSSUtil.CALLER_ACCEPT == caller || |
| 204 | GSSUtil.CALLER_SSL_SERVER == caller; |
| 205 | } |
| 206 | } |