de.terrestris.shoguncore.service.LdapService Maven / Gradle / Ivy
package de.terrestris.shoguncore.service;
import org.apache.logging.log4j.Logger;
import org.springframework.ldap.core.AttributesMapper;
import org.springframework.ldap.core.LdapTemplate;
import org.springframework.stereotype.Service;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.directory.Attributes;
import java.util.ArrayList;
import java.util.List;
import static org.apache.logging.log4j.LogManager.getLogger;
import static org.springframework.ldap.query.LdapQueryBuilder.query;
/**
* terrestris GmbH & Co. KG
*
* Ldap service
*/
@Service
public class LdapService {
private static final Logger LOGGER = getLogger(LdapService.class);
private LdapTemplate ldapTemplate;
/**
* Set the ldap template property for ldap access.
*
* @param ldapTemplate the template to set
*/
public void setLdapTemplate(LdapTemplate ldapTemplate) {
this.ldapTemplate = ldapTemplate;
}
/**
* Authenticate against ldap.
*
* @param username the username
* @param password the password
*/
public void authenticate(String username, String password) {
ldapTemplate.authenticate(query().where("objectClass").is("simpleSecurityObject").and("cn").is(username), password);
LOGGER.info("Successfully authenticated " + username);
}
/**
* Extract groups from ldap.
*
* @param username username to search for
* @param property the property to extract the groups from
* @return a list of group names from ldap
*/
public List getGroups(String username, String property) {
final List result = new ArrayList<>();
ldapTemplate.search(query().where("cn").is(username), new AttributesMapper() {
public String mapFromAttributes(Attributes attrs) throws NamingException {
NamingEnumeration ous = attrs.get(property).getAll();
// since we can generate multiple values here but may only return a single string, we ignore
// the ldapTemplate#search result and just put the values in our own list, returning an empty string
// which is effectively ignored
while (ous.hasMore()) {
result.add((String) ous.next());
}
return "";
}
});
return result;
}
}