| /** |
| * 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.server; |
| |
| import org.apache.kerby.kerberos.kerb.KrbException; |
| import org.apache.kerby.kerberos.kerb.identity.backend.BackendConfig; |
| import org.apache.kerby.kerberos.kerb.identity.backend.IdentityBackend; |
| import org.apache.kerby.kerberos.kerb.identity.backend.MemoryIdentityBackend; |
| import org.apache.kerby.kerberos.kerb.transport.TransportPair; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.net.InetSocketAddress; |
| |
| /** |
| * KDC side utilities. |
| */ |
| public final class KdcUtil { |
| |
| private KdcUtil() { } |
| |
| /** |
| * Get kdc configuration |
| * @param confDir configuration directory |
| * @return kdc configuration |
| * @throws org.apache.kerby.kerberos.kerb.KrbException e. |
| */ |
| public static KdcConfig getKdcConfig(File confDir) throws KrbException { |
| File kdcConfFile = new File(confDir, "kdc.conf"); |
| if (kdcConfFile.exists()) { |
| KdcConfig kdcConfig = new KdcConfig(); |
| try { |
| kdcConfig.addIniConfig(kdcConfFile); |
| } catch (IOException e) { |
| throw new KrbException("Can not load the kdc configuration file " |
| + kdcConfFile.getAbsolutePath()); |
| } |
| return kdcConfig; |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Get backend configuration |
| * @param confDir configuration directory |
| * @return backend configuration |
| * @throws org.apache.kerby.kerberos.kerb.KrbException e. |
| */ |
| public static BackendConfig getBackendConfig(File confDir) throws KrbException { |
| File backendConfigFile = new File(confDir, "backend.conf"); |
| if (backendConfigFile.exists()) { |
| BackendConfig backendConfig = new BackendConfig(); |
| try { |
| backendConfig.addIniConfig(backendConfigFile); |
| } catch (IOException e) { |
| throw new KrbException("Can not load the backend configuration file " |
| + backendConfigFile.getAbsolutePath()); |
| } |
| return backendConfig; |
| } |
| |
| return null; |
| } |
| |
| /** |
| * Init the identity backend from backend configuration. |
| * |
| * @throws org.apache.kerby.kerberos.kerb.KrbException e. |
| * @param backendConfig backend configuration information |
| * @return backend |
| */ |
| public static IdentityBackend getBackend( |
| BackendConfig backendConfig) throws KrbException { |
| String backendClassName = backendConfig.getString( |
| KdcConfigKey.KDC_IDENTITY_BACKEND, true); |
| if (backendClassName == null) { |
| backendClassName = MemoryIdentityBackend.class.getCanonicalName(); |
| } |
| |
| Class<?> backendClass; |
| try { |
| backendClass = Class.forName(backendClassName); |
| } catch (ClassNotFoundException e) { |
| throw new KrbException("Failed to load backend class: " |
| + backendClassName); |
| } |
| |
| IdentityBackend backend; |
| try { |
| backend = (IdentityBackend) backendClass.newInstance(); |
| } catch (InstantiationException | IllegalAccessException e) { |
| throw new KrbException("Failed to create backend: " |
| + backendClassName); |
| } |
| |
| backend.setConfig(backendConfig); |
| backend.initialize(); |
| return backend; |
| } |
| |
| /** |
| * Get KDC network transport addresses according to KDC setting. |
| * @param setting kdc setting |
| * @return UDP and TCP addresses pair |
| * @throws KrbException e |
| */ |
| public static TransportPair getTransportPair( |
| KdcSetting setting) throws KrbException { |
| TransportPair result = new TransportPair(); |
| |
| int tcpPort = setting.checkGetKdcTcpPort(); |
| if (tcpPort > 0) { |
| result.tcpAddress = new InetSocketAddress( |
| setting.getKdcHost(), tcpPort); |
| } |
| int udpPort = setting.checkGetKdcUdpPort(); |
| if (udpPort > 0) { |
| result.udpAddress = new InetSocketAddress( |
| setting.getKdcHost(), udpPort); |
| } |
| |
| return result; |
| } |
| } |