/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.cloudstack.ldap;
import java.util.ArrayList;
import java.util.List;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.SearchControls;
import javax.naming.directory.SearchResult;
import javax.naming.ldap.LdapContext;
import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
public class ADLdapUserManagerImpl extends OpenLdapUserManagerImpl implements LdapUserManager {
public static final Logger s_logger = Logger.getLogger(ADLdapUserManagerImpl.class.getName());
private static final String MICROSOFT_AD_NESTED_MEMBERS_FILTER = "memberOf:1.2.840.113556.1.4.1941:";
private static final String MICROSOFT_AD_MEMBERS_FILTER = "memberOf";
@Override
public List<LdapUser> getUsersInGroup(String groupName, LdapContext context) throws NamingException {
if (StringUtils.isBlank(groupName)) {
throw new IllegalArgumentException("ldap group name cannot be blank");
}
String basedn = _ldapConfiguration.getBaseDn();
if (StringUtils.isBlank(basedn)) {
throw new IllegalArgumentException("ldap basedn is not configured");
}
final SearchControls searchControls = new SearchControls();
searchControls.setSearchScope(_ldapConfiguration.getScope());
searchControls.setReturningAttributes(_ldapConfiguration.getReturnAttributes());
NamingEnumeration<SearchResult> results = context.search(basedn, generateADGroupSearchFilter(groupName), searchControls);
final List<LdapUser> users = new ArrayList<LdapUser>();
while (results.hasMoreElements()) {
final SearchResult result = results.nextElement();
users.add(createUser(result));
}
return users;
}
private String generateADGroupSearchFilter(String groupName) {
final StringBuilder userObjectFilter = new StringBuilder();
userObjectFilter.append("(objectClass=");
userObjectFilter.append(_ldapConfiguration.getUserObject());
userObjectFilter.append(")");
final StringBuilder memberOfFilter = new StringBuilder();
String groupCnName = _ldapConfiguration.getCommonNameAttribute() + "=" +groupName + "," + _ldapConfiguration.getBaseDn();
memberOfFilter.append("(").append(getMemberOfAttribute()).append("=");
memberOfFilter.append(groupCnName);
memberOfFilter.append(")");
final StringBuilder result = new StringBuilder();
result.append("(&");
result.append(userObjectFilter);
result.append(memberOfFilter);
result.append(")");
s_logger.debug("group search filter = " + result);
return result.toString();
}
protected boolean isUserDisabled(SearchResult result) throws NamingException {
boolean isDisabledUser = false;
String userAccountControl = LdapUtils.getAttributeValue(result.getAttributes(), _ldapConfiguration.getUserAccountControlAttribute());
if (userAccountControl != null) {
int control = Integer.parseInt(userAccountControl);
// second bit represents disabled user flag in AD
if ((control & 2) > 0) {
isDisabledUser = true;
}
}
return isDisabledUser;
}
protected String getMemberOfAttribute() {
if(_ldapConfiguration.isNestedGroupsEnabled()) {
return MICROSOFT_AD_NESTED_MEMBERS_FILTER;
} else {
return MICROSOFT_AD_MEMBERS_FILTER;
}
}
}