/*
 *  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
 *
 *    https://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 grails.plugin.springsecurity.ldap.core

import groovy.transform.CompileStatic
import groovy.util.logging.Slf4j

import org.springframework.ldap.core.support.AbstractContextSource
import org.springframework.ldap.core.support.SimpleDirContextAuthenticationStrategy

/**
 * Based on the anonymous inner class in DefaultSpringSecurityContextSource.
 *
 * @author Luke Taylor
 * @author <a href='mailto:burt@burtbeckwith.com'>Burt Beckwith</a>
 */
@CompileStatic
@Slf4j
class GrailsSimpleDirContextAuthenticationStrategy extends SimpleDirContextAuthenticationStrategy {

    /** Dependency injection for the userDn. */
    String userDn

    @Override
    void setupEnvironment(Hashtable<String, Object> env, String dn, String password) {
        super.setupEnvironment env, dn, password

        // Remove the pooling flag unless we are authenticating as the 'manager' user.
        if (userDn != dn && env.remove(AbstractContextSource.SUN_LDAP_POOLING_FLAG)) {
            log.debug 'Removed pooling flag for user {}', dn
        }
    }
}
