/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <p>
*/
package org.olat.shibboleth.util;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.olat.core.logging.StartupException;
import com.anthonyeden.lib.config.Configuration;
public class UniqueIdentifierMapper {
private static final String CONF_UNIQUEIDENTIFIERS_DEFAULT = "Default";
private static final String CONF_UNIQUEIDENTIFIERS_SITENAME = "siteName";
private static final String CONF_UNIQUEIDENTIFIERS_ORIGINSITE = "OriginSite";
private static final String CONF_UNIQUEIDENTIFIERS_UIDATTRIBUTE = "uidAttribute";
private static String defaultUniqueIdentifier;
private static Map uniqueIdentifierMap;
public UniqueIdentifierMapper(Configuration uidConfig) {
uniqueIdentifierMap = new HashMap();
Configuration defaultUidConfig = uidConfig.getChild(CONF_UNIQUEIDENTIFIERS_DEFAULT);
if (defaultUidConfig == null)
throw new StartupException("Missing default unique identifier. Please fix!");
defaultUniqueIdentifier = defaultUidConfig.getAttribute(CONF_UNIQUEIDENTIFIERS_UIDATTRIBUTE);
List originUidConfig = uidConfig.getChildren(CONF_UNIQUEIDENTIFIERS_ORIGINSITE);
if (originUidConfig != null) { // fetch origin specific uidAttributes
for (Iterator iter = originUidConfig.iterator(); iter.hasNext();) {
Configuration originSite = (Configuration) iter.next();
uniqueIdentifierMap.put(originSite.getAttribute(CONF_UNIQUEIDENTIFIERS_SITENAME), originSite.getAttribute(CONF_UNIQUEIDENTIFIERS_UIDATTRIBUTE));
}
}
}
/**
* Return the shibboleth attribute name which uniquely identifies a shibboleth identity.
* @param originSiteName
* @return unique identifier.
*/
public String resolveUIDAttribute(String originSiteName) {
if (originSiteName == null) return defaultUniqueIdentifier;
else {
String uidAttr = (String)uniqueIdentifierMap.get(originSiteName);
return uidAttr == null ? defaultUniqueIdentifier : uidAttr;
}
}
public String getDefaultUIDAttribute() {
return defaultUniqueIdentifier;
}
}