/**
* 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.cxf.sts.claims;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.naming.Name;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
import javax.naming.directory.SearchControls;
import javax.security.auth.x500.X500Principal;
import org.apache.cxf.helpers.CastUtils;
import org.springframework.ldap.core.AttributesMapper;
import org.springframework.ldap.core.ContextMapper;
import org.springframework.ldap.core.DirContextOperations;
import org.springframework.ldap.core.LdapTemplate;
import org.springframework.ldap.core.support.AbstractContextMapper;
import org.springframework.ldap.filter.AndFilter;
import org.springframework.ldap.filter.EqualsFilter;
import org.springframework.ldap.filter.Filter;
public final class LdapUtils {
private LdapUtils() {
}
public static boolean isDN(String user) {
try {
new X500Principal(user);
return true;
//Principal contains a DN -> ldap.lookup
} catch (Exception ex) {
//Principal does not contain a DN -> ldap.search
return false;
}
}
public static Map<String, Attribute> getAttributesOfEntry(LdapTemplate ldapTemplate, String baseDN,
String objectClass, String filterAttributeName, String filterAttributeValue,
String[] searchAttributes) {
Map<String, Attribute> ldapAttributes = null;
AttributesMapper<Map<String, Attribute>> mapper =
new AttributesMapper<Map<String, Attribute>>() {
public Map<String, Attribute> mapFromAttributes(Attributes attrs) throws NamingException {
Map<String, Attribute> map = new HashMap<>();
NamingEnumeration<? extends Attribute> attrEnum = attrs.getAll();
while (attrEnum.hasMore()) {
Attribute att = attrEnum.next();
map.put(att.getID(), att);
}
return map;
}
};
List<?> result = null;
AndFilter filter = new AndFilter();
filter.and(
new EqualsFilter("objectclass", objectClass)).and(
new EqualsFilter(filterAttributeName, filterAttributeValue));
result = ldapTemplate.search((baseDN == null) ? "" : baseDN, filter.toString(),
SearchControls.SUBTREE_SCOPE, searchAttributes, mapper);
if (result != null && !result.isEmpty()) {
ldapAttributes = CastUtils.cast((Map<?, ?>)result.get(0));
}
return ldapAttributes;
}
public static List<String> getAttributeOfEntries(
LdapTemplate ldapTemplate, String baseDN,
String objectClass, String filterAttributeName, String filterAttributeValue,
String searchAttribute) {
List<Filter> filters =
Collections.singletonList(new EqualsFilter(filterAttributeName, filterAttributeValue));
return getAttributeOfEntries(ldapTemplate, baseDN, objectClass, filters, searchAttribute);
}
public static List<String> getAttributeOfEntries(
LdapTemplate ldapTemplate, String baseDN,
String objectClass, List<Filter> filters,
String searchAttribute) {
List<String> ldapAttributes = null;
AttributesMapper<Object> mapper =
new AttributesMapper<Object>() {
public Object mapFromAttributes(Attributes attrs) throws NamingException {
NamingEnumeration<? extends Attribute> attrEnum = attrs.getAll();
while (attrEnum.hasMore()) {
return (String) attrEnum.next().get();
}
return null;
}
};
String[] searchAttributes = new String[] {searchAttribute};
List<?> result = null;
AndFilter filter = new AndFilter();
filter.and(new EqualsFilter("objectclass", objectClass));
if (filters != null) {
for (Filter f : filters) {
filter.and(f);
}
}
result = ldapTemplate.search((baseDN == null) ? "" : baseDN, filter.toString(),
SearchControls.SUBTREE_SCOPE, searchAttributes, mapper);
if (result != null && !result.isEmpty()) {
ldapAttributes = CastUtils.cast((List<?>)result);
}
return ldapAttributes;
}
public static Name getDnOfEntry(LdapTemplate ldapTemplate, String baseDN,
String objectClass, String filterAttributeName, String filterAttributeValue) {
ContextMapper<Name> mapper =
new AbstractContextMapper<Name>() {
public Name doMapFromContext(DirContextOperations ctx) {
return ctx.getDn();
}
};
AndFilter filter = new AndFilter();
filter.and(
new EqualsFilter("objectclass", objectClass)).and(
new EqualsFilter(filterAttributeName, filterAttributeValue));
List<Name> result = ldapTemplate.search((baseDN == null) ? "" : baseDN, filter.toString(),
SearchControls.SUBTREE_SCOPE, mapper);
if (result != null && !result.isEmpty()) {
//not only the first one....
return result.get(0);
}
return null;
}
}