/**
*
* Copyright 2003-2005 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.geronimo.security.realm.providers;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.security.cert.X509Certificate;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.Collection;
import javax.security.auth.Subject;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.security.auth.login.LoginException;
import javax.security.auth.login.FailedLoginException;
import javax.security.auth.spi.LoginModule;
import javax.security.auth.x500.X500Principal;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.geronimo.common.GeronimoSecurityException;
import org.apache.geronimo.security.jaas.JaasLoginModuleUse;
import org.apache.geronimo.system.serverinfo.ServerInfo;
/**
* An example LoginModule that reads a list of users and group from a file on disk.
* Authentication is provided by the SSL layer supplying the client certificate.
* All we check is that it is present. The
* file should be formatted using standard Java properties syntax. Expects
* to be run by a GenericSecurityRealm (doesn't work on its own).
*
* The usersURI property file should have lines of the form token=certificatename
* where certificate name is X509Certificate.getSubjectX500Principal().getName()
*
* The groupsURI property file should have lines of the form group=token1,token2,...
* where the tokens were associated to the certificate names in the usersURI properties file.
*
* @version $Rev$ $Date$
*/
public class CertificatePropertiesFileLoginModule implements LoginModule {
public final static String USERS_URI = "usersURI";
public final static String GROUPS_URI = "groupsURI";
private static Log log = LogFactory.getLog(CertificatePropertiesFileLoginModule.class);
private final Map users = new HashMap();
final Map groups = new HashMap();
Subject subject;
CallbackHandler handler;
X500Principal principal;
public void initialize(Subject subject, CallbackHandler callbackHandler, Map sharedState, Map options) {
this.subject = subject;
this.handler = callbackHandler;
try {
ServerInfo serverInfo = (ServerInfo) options.get(JaasLoginModuleUse.SERVERINFO_LM_OPTION);
URI usersURI = new URI((String)options.get(USERS_URI));
URI groupsURI = new URI((String)options.get(GROUPS_URI));
loadProperties(serverInfo, usersURI, groupsURI);
} catch (Exception e) {
log.error(e);
throw new IllegalArgumentException("Unable to configure properties file login module: "+e);
}
}
public void loadProperties(ServerInfo serverInfo, URI usersURI, URI groupURI) throws GeronimoSecurityException {
try {
URI userFile = serverInfo.resolve(usersURI);
URI groupFile = serverInfo.resolve(groupURI);
InputStream stream = userFile.toURL().openStream();
Properties tmpUsers = new Properties();
tmpUsers.load(stream);
stream.close();
for (Iterator iterator = tmpUsers.entrySet().iterator(); iterator.hasNext();) {
Map.Entry entry = (Map.Entry) iterator.next();
users.put(entry.getValue(), entry.getKey());
}
Properties temp = new Properties();
stream = groupFile.toURL().openStream();
temp.load(stream);
stream.close();
Enumeration e = temp.keys();
while (e.hasMoreElements()) {
String groupName = (String) e.nextElement();
String[] userList = ((String) temp.get(groupName)).split(",");
Set userset = (Set) groups.get(groupName);
if (userset == null) {
userset = new HashSet();
groups.put(groupName, userset);
}
for (int i = 0; i < userList.length; i++) {
String userName = userList[i];
userset.add(userName);
}
}
} catch (Exception e) {
log.error("Properties File Login Module - data load failed", e);
throw new GeronimoSecurityException(e);
}
}
public boolean login() throws LoginException {
Callback[] callbacks = new Callback[1];
callbacks[0] = new CertificateCallback();
try {
handler.handle(callbacks);
} catch (IOException ioe) {
throw (LoginException) new LoginException().initCause(ioe);
} catch (UnsupportedCallbackException uce) {
throw (LoginException) new LoginException().initCause(uce);
}
assert callbacks.length == 1;
X509Certificate certificate = ((CertificateCallback)callbacks[0]).getCertificate();
if (certificate == null) {
return false;
}
principal = certificate.getSubjectX500Principal();
if(!users.containsKey(principal.getName())) {
throw new FailedLoginException();
}
return true;
}
public boolean commit() throws LoginException {
Set principals = subject.getPrincipals();
principals.add(principal);
String userName = (String) users.get(principal.getName());
principals.add(new GeronimoUserPrincipal(userName));
Iterator e = groups.keySet().iterator();
while (e.hasNext()) {
String groupName = (String) e.next();
Set users = (Set) groups.get(groupName);
Iterator iter = users.iterator();
while (iter.hasNext()) {
String user = (String) iter.next();
if (userName.equals(user)) {
principals.add(new GeronimoGroupPrincipal(groupName));
break;
}
}
}
return true;
}
public boolean abort() throws LoginException {
principal = null;
return true;
}
public boolean logout() throws LoginException {
principal = null;
//todo: should remove principals added by commit
return true;
}
/**
* Gets the names of all principal classes that may be populated into
* a Subject.
*/
public String[] getPrincipalClassNames() {
return new String[]{GeronimoUserPrincipal.class.getName(), GeronimoGroupPrincipal.class.getName()};
}
/**
* Gets a list of all the principals of a particular type (identified by
* the principal class). These are available for manual role mapping.
*/
public String[] getPrincipalsOfClass(String className) {
Collection s;
if(className.equals(GeronimoGroupPrincipal.class.getName())) {
s = groups.keySet();
} else if(className.equals(GeronimoUserPrincipal.class.getName())) {
s = users.values();
} else if(className.equals(X500Principal.class.getName())) {
s = users.keySet();
} else {
throw new IllegalArgumentException("No such principal class "+className);
}
return (String[]) s.toArray(new String[s.size()]);
}
}