de.aservo.ldap.adapter.CommonAuthenticator Maven / Gradle / Ivy
/*
* Initiator:
* Copyright (c) 2012 Dieter Wimberger
* http://dieter.wimpi.net
*
* Maintenance:
* Copyright (c) 2019 ASERVO Software GmbH
* [email protected]
*
* Licensed 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 de.aservo.ldap.adapter;
import de.aservo.ldap.adapter.api.LdapUtils;
import de.aservo.ldap.adapter.api.directory.DirectoryBackend;
import de.aservo.ldap.adapter.api.directory.exception.DirectoryAccessFailureException;
import de.aservo.ldap.adapter.api.directory.exception.EntityNotFoundException;
import de.aservo.ldap.adapter.api.directory.exception.SecurityProblemException;
import de.aservo.ldap.adapter.api.entity.UserEntity;
import de.aservo.ldap.adapter.api.exception.InternalServerException;
import org.apache.directory.api.ldap.model.constants.AuthenticationLevel;
import org.apache.directory.api.ldap.model.exception.LdapAuthenticationException;
import org.apache.directory.api.ldap.model.exception.LdapException;
import org.apache.directory.api.ldap.model.exception.LdapInvalidDnException;
import org.apache.directory.api.ldap.model.schema.SchemaManager;
import org.apache.directory.server.core.api.LdapPrincipal;
import org.apache.directory.server.core.api.interceptor.context.BindOperationContext;
import org.apache.directory.server.core.authn.AbstractAuthenticator;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.nio.charset.StandardCharsets;
/**
* Implements ApacheDS authenticator to allow authentication by directory backend.
*/
public class CommonAuthenticator
extends AbstractAuthenticator {
private final Logger logger = LoggerFactory.getLogger(CommonAuthenticator.class);
private final DirectoryBackendFactory directoryBackendFactory;
private final SchemaManager schemaManager;
/**
* Instantiates a new authenticator.
*
* @param directoryBackendFactory the directory backend factory
* @param schemaManager the schema manager
*/
public CommonAuthenticator(DirectoryBackendFactory directoryBackendFactory, SchemaManager schemaManager) {
super(AuthenticationLevel.SIMPLE);
this.directoryBackendFactory = directoryBackendFactory;
this.schemaManager = schemaManager;
}
public LdapPrincipal authenticate(BindOperationContext context)
throws LdapException {
DirectoryBackend directory = directoryBackendFactory.getPermanentDirectory();
try {
String userId = LdapUtils.getUserIdFromDn(schemaManager, context.getDn().getName(), directory.getId());
if (userId == null)
throw new LdapInvalidDnException("Cannot handle unexpected DN=" + context.getDn());
String password = new String(context.getCredentials(), StandardCharsets.UTF_8);
UserEntity user = directory.getAuthenticatedUser(userId, password);
logger.info("[{}] - The user {} with DN={} has been successfully authenticated.",
context.getIoSession().getRemoteAddress(),
user.getId(),
context.getDn());
return new LdapPrincipal(schemaManager, context.getDn(), AuthenticationLevel.SIMPLE);
} catch (LdapInvalidDnException e) {
logger.info("[{}] - Authentication with incorrect DN={} could not be performed.",
context.getIoSession().getRemoteAddress(),
context.getDn());
logger.debug("Authentication failed.", e);
throw new LdapAuthenticationException(e.getMessage());
} catch (DirectoryAccessFailureException |
SecurityProblemException |
EntityNotFoundException e) {
logger.info("[{}] - Authentication with DN={} could not be performed.",
context.getIoSession().getRemoteAddress(),
context.getDn());
logger.debug("Authentication failed.", e);
throw new LdapAuthenticationException(e.getMessage());
} catch (Exception e) {
logger.error("The authenticator caught an exception.", e);
throw new InternalServerException("The authenticator has detected an internal server error.");
}
}
}