| /* |
| * 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; |
| |
| import org.apache.directory.mavibot.btree.serializer.BufferHandler; |
| import org.apache.directory.mavibot.btree.serializer.ElementSerializer; |
| import org.apache.directory.mavibot.btree.serializer.IntSerializer; |
| import org.apache.directory.mavibot.btree.serializer.LongSerializer; |
| import org.apache.directory.mavibot.btree.serializer.StringSerializer; |
| import org.apache.kerby.kerberos.kerb.identity.KrbIdentity; |
| import org.apache.kerby.kerberos.kerb.type.KerberosTime; |
| import org.apache.kerby.kerberos.kerb.type.base.EncryptionKey; |
| import org.apache.kerby.kerberos.kerb.type.base.EncryptionType; |
| |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| import java.util.Comparator; |
| import java.util.Map; |
| |
| /** |
| * Serializer for KrbIdentity. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class KrbIdentitySerializer implements ElementSerializer<KrbIdentity> { |
| /** the static instance of the serializer */ |
| public static final KrbIdentitySerializer INSTANCE = new KrbIdentitySerializer(); |
| |
| /** comparator for KrbIdentity */ |
| private KrbIdentityComparator comparator = KrbIdentityComparator.INSTANCE; |
| |
| @Override |
| public byte[] serialize(KrbIdentity entry) { |
| |
| ByteArrayOutputStream out = new ByteArrayOutputStream(); |
| |
| try { |
| // the principalName |
| out.write(StringSerializer.INSTANCE.serialize(entry.getPrincipalName())); |
| |
| // key version |
| out.write(IntSerializer.serialize(entry.getKeyVersion())); |
| |
| out.write(IntSerializer.serialize(entry.getKdcFlags())); |
| |
| // mask for disabled and lock flags |
| byte mask = 0; |
| |
| if (entry.isDisabled()) { |
| mask |= 1 << 1; |
| } |
| |
| if (entry.isLocked()) { |
| mask |= 1 << 2; |
| } |
| |
| out.write(mask); |
| |
| // creation time |
| out.write(LongSerializer.serialize(entry.getCreatedTime().getTime())); |
| |
| // expiration time |
| out.write(LongSerializer.serialize(entry.getExpireTime().getTime())); |
| |
| Map<EncryptionType, EncryptionKey> keys = entry.getKeys(); |
| // num keys |
| out.write(IntSerializer.serialize(keys.size())); |
| |
| for (EncryptionKey ek : keys.values()) { |
| int type = ek.getKeyType().getValue(); |
| out.write(IntSerializer.serialize(type)); |
| byte[] data = ek.getKeyData(); |
| out.write(IntSerializer.serialize(data.length)); |
| out.write(data); |
| } |
| |
| return out.toByteArray(); |
| } catch (Exception e) { |
| throw new IllegalStateException("Failed to serialize the identity " + entry); |
| } |
| } |
| |
| @Override |
| public KrbIdentity deserialize(BufferHandler bufferHandler) |
| throws IOException { |
| return fromBytes(bufferHandler.getBuffer()); |
| } |
| |
| @Override |
| public KrbIdentity deserialize(ByteBuffer buffer) throws IOException { |
| KrbIdentity id = null; |
| |
| String principal = StringSerializer.INSTANCE.deserialize(buffer); |
| |
| id = new KrbIdentity(principal); |
| |
| int kvno = IntSerializer.INSTANCE.deserialize(buffer); |
| id.setKeyVersion(kvno); |
| |
| int flags = IntSerializer.INSTANCE.deserialize(buffer); |
| id.setKdcFlags(flags); |
| |
| byte mask = buffer.get(); |
| |
| if ((mask & 2) != 0) { |
| id.setDisabled(true); |
| } |
| |
| if ((mask & 4) != 0) { |
| id.setLocked(true); |
| } |
| |
| long creationTime = LongSerializer.INSTANCE.deserialize(buffer); |
| id.setCreatedTime(new KerberosTime(creationTime)); |
| |
| long exprTime = LongSerializer.INSTANCE.deserialize(buffer); |
| id.setExpireTime(new KerberosTime(exprTime)); |
| |
| int numKeys = IntSerializer.INSTANCE.deserialize(buffer); |
| |
| for (int i = 0; i < numKeys; i++) { |
| int keyType = IntSerializer.INSTANCE.deserialize(buffer); |
| int keyLen = IntSerializer.INSTANCE.deserialize(buffer); |
| |
| byte[] keyData = new byte[keyLen]; |
| buffer.get(keyData); |
| |
| EncryptionKey ek = new EncryptionKey(keyType, keyData); |
| |
| id.addKey(ek); |
| } |
| |
| return id; |
| } |
| |
| @Override |
| public KrbIdentity fromBytes(byte[] buffer) throws IOException { |
| ByteBuffer buf = ByteBuffer.wrap(buffer); |
| return deserialize(buf); |
| } |
| |
| @Override |
| public KrbIdentity fromBytes(byte[] buffer, int pos) throws IOException { |
| ByteBuffer buf = ByteBuffer.wrap(buffer, pos, buffer.length - pos); |
| return deserialize(buf); |
| } |
| |
| @Override |
| public int compare(KrbIdentity type1, KrbIdentity type2) { |
| return comparator.compare(type1, type2); |
| } |
| |
| @Override |
| public Comparator<KrbIdentity> getComparator() { |
| return comparator; |
| } |
| |
| @Override |
| public Class<?> getType() { |
| return KrbIdentity.class; |
| } |
| } |