/**
 *  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.kerby.kerberos.kerb.admin.server;


import org.apache.kerby.kerberos.kerb.KrbException;
import org.apache.kerby.kerberos.kerb.admin.Krb5Conf;
import org.apache.kerby.kerberos.kerb.admin.server.kadmin.AdminServer;
import org.apache.kerby.kerberos.kerb.admin.server.kadmin.AdminServerConfig;
import org.apache.kerby.kerberos.kerb.server.KdcConfig;
import org.apache.kerby.kerberos.kerb.server.KdcUtil;
import org.apache.kerby.util.OSUtil;

import java.io.File;
import java.io.IOException;

public class KerbyAdminServer {
    private static final String USAGE = (OSUtil.isWindows()
        ? "Usage: bin\\admin-server.cmd" : "Usage: sh bin/admin-server.sh")
        + " <conf-file>\n"
        + "\tExample:\n"
        + "\t\t"
        + (OSUtil.isWindows()
        ? "bin\\admin-server.cmd" : "sh bin/admin-server.sh")
        + " conf\n";

    public static void main(String[] args) throws Exception {

        if (args.length != 1) {
            System.err.println(USAGE);
            System.exit(1);
        }

        String confDirPath = args[0];
        AdminServer adminServer = new AdminServer(new File(confDirPath));
        AdminServerConfig adminServerConfig = adminServer.getAdminServerConfig();

        adminServer.setAdminHost(adminServerConfig.getAdminHost());
        adminServer.setAllowTcp(true);
        adminServer.setAllowUdp(false);
        adminServer.setAdminServerPort(adminServerConfig.getAdminPort());

        KdcConfig kdcConfig = KdcUtil.getKdcConfig(new File(confDirPath));
        if (kdcConfig == null) {
            kdcConfig = new KdcConfig();
        }
        try {
            Krb5Conf krb5Conf = new Krb5Conf(new File(confDirPath), kdcConfig);
            krb5Conf.initKrb5conf();
        } catch (IOException e) {
            throw new KrbException("Failed to make krb5.conf", e);
        }

        try {
            adminServer.init();
        } catch (KrbException e) {
            System.err.println("Errors occurred when start admin server:  " + e.getMessage());
            System.exit(2);
        }
        adminServer.start();
        System.out.println("Admin server started!");
    }
}