/**
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* <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 the
* <a href="http://www.apache.org/licenses/LICENSE-2.0">Apache homepage</a>
* <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>
* Initial code contributed and copyrighted by<br>
* frentix GmbH, http://www.frentix.com
* <p>
*/
package org.olat.shibboleth;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.olat.core.CoreSpringFactory;
import org.olat.core.util.StringHelper;
import org.olat.registration.AbstractUserNameCreationInterceptor;
/**
*
* Description:<br>
* An implementation of the UserNameCreationInterceptor which generate
* a username from a Shibboleth attribute. The attribute is configurable
* in olat.properties (registration.preset.username.shibbolethAttribute) and
* the possibility to change it too (registration.preset.username.allowChanges)
*
* <P>
* Initial Date: 5 mars 2010 <br>
* @author srosse, stephane.rosse@frentix.com
*/
public class ShibbolethUserNameFromAttributeUserNameCreationInterceptor extends AbstractUserNameCreationInterceptor {
private String shibUsernameAttr;
private List<String> regexp;
private List<Pattern> regexpPatterns;
public ShibbolethUserNameFromAttributeUserNameCreationInterceptor() {
//
}
public String getShibUsernameAttr() {
return shibUsernameAttr;
}
public void setShibUsernameAttr(String shibUsernameAttr) {
this.shibUsernameAttr = shibUsernameAttr;
}
public List<String> getRegexp() {
return regexp;
}
public void setRegexp(List<String> regexp) {
this.regexp = regexp;
}
@Override
public String getUsernameFor(Map<String, String> userAttributes) {
String proposedUsername = userAttributes.get(shibUsernameAttr);
if(proposedUsername == null) {
shibUsernameAttr = CoreSpringFactory.getImpl(ShibbolethModule.class).getAttributeTranslator().translateAttribute(shibUsernameAttr);
proposedUsername = userAttributes.get(shibUsernameAttr);
}
if(!StringHelper.containsNonWhitespace(proposedUsername)) {
return null;
}
if(regexp != null && !regexp.isEmpty()) {
if(regexpPatterns == null) {
regexpPatterns = new ArrayList<Pattern>();
for(String regex:regexp) {
regexpPatterns.add(Pattern.compile(regex));
}
}
for(Pattern regexPattern:regexpPatterns) {
Matcher m = regexPattern.matcher(proposedUsername);
if(m.find()) {
proposedUsername = m.group();
if(!StringHelper.containsNonWhitespace(proposedUsername)) {
proposedUsername = null;
break;
}
}
}
}
if(isMakeUniqueProposal()) {
return makeUniqueProposal(proposedUsername);
}
return proposedUsername;
}
}