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/*
 * Copyright (c) 2014-2015. Vlad Ilyushchenko
 *
 * 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 com.nfsdb.journal.net.krb;

import com.nfsdb.journal.net.auth.CredentialProvider;

public class KrbCredentialProvider implements CredentialProvider {

    private final String krb5Conf;
    private final String principal;
    private final String keyTab;
    private final String serviceName;

    public KrbCredentialProvider(String krb5Conf, String principal, String keyTab, String serviceName) {
        this.krb5Conf = krb5Conf;
        this.principal = principal;
        this.keyTab = keyTab;
        this.serviceName = serviceName;
    }

    @Override
    public byte[] createToken() throws Exception {
        try (ActiveDirectoryConnection connection = new ActiveDirectoryConnection(krb5Conf, principal, keyTab)) {
            return connection.encodeServiceToken(serviceName);
        }
    }
}