| /** |
| * 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 backtype.storm.security.serialization; |
| |
| import java.util.Map; |
| import org.apache.commons.codec.binary.Hex; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import javax.crypto.KeyGenerator; |
| import javax.crypto.SecretKey; |
| |
| import com.esotericsoftware.kryo.Kryo; |
| import com.esotericsoftware.kryo.io.Input; |
| import com.esotericsoftware.kryo.io.Output; |
| import com.esotericsoftware.kryo.Serializer; |
| import com.esotericsoftware.kryo.serializers.BlowfishSerializer; |
| |
| import backtype.storm.serialization.types.ListDelegateSerializer; |
| import backtype.storm.utils.ListDelegate; |
| import backtype.storm.Config; |
| |
| /** |
| * Apply Blowfish encrption for tuple communication to bolts |
| */ |
| public class BlowfishTupleSerializer extends Serializer<ListDelegate> { |
| /** |
| * The secret key (if any) for data encryption by blowfish payload serialization factory (BlowfishSerializationFactory). |
| * You should use in via "storm -c topology.tuple.serializer.blowfish.key=YOURKEY -c topology.tuple.serializer=backtype.storm.security.serialization.BlowfishTupleSerializer jar ...". |
| */ |
| public static String SECRET_KEY = "topology.tuple.serializer.blowfish.key"; |
| private static final Logger LOG = LoggerFactory.getLogger(BlowfishTupleSerializer.class); |
| private BlowfishSerializer _serializer; |
| |
| public BlowfishTupleSerializer(Kryo kryo, Map storm_conf) { |
| String encryption_key = null; |
| try { |
| encryption_key = (String)storm_conf.get(SECRET_KEY); |
| LOG.debug("Blowfish serializer being constructed ..."); |
| if (encryption_key == null) { |
| throw new RuntimeException("Blowfish encryption key not specified"); |
| } |
| byte[] bytes = Hex.decodeHex(encryption_key.toCharArray()); |
| _serializer = new BlowfishSerializer(new ListDelegateSerializer(), bytes); |
| } catch (org.apache.commons.codec.DecoderException ex) { |
| throw new RuntimeException("Blowfish encryption key invalid", ex); |
| } |
| } |
| |
| @Override |
| public void write(Kryo kryo, Output output, ListDelegate object) { |
| _serializer.write(kryo, output, object); |
| } |
| |
| @Override |
| public ListDelegate read(Kryo kryo, Input input, Class<ListDelegate> type) { |
| return (ListDelegate)_serializer.read(kryo, input, type); |
| } |
| |
| /** |
| * Produce a blowfish key to be used in "Storm jar" command |
| */ |
| public static void main(String[] args) { |
| try{ |
| KeyGenerator kgen = KeyGenerator.getInstance("Blowfish"); |
| SecretKey skey = kgen.generateKey(); |
| byte[] raw = skey.getEncoded(); |
| String keyString = new String(Hex.encodeHex(raw)); |
| System.out.println("storm -c "+SECRET_KEY+"="+keyString+" -c "+Config.TOPOLOGY_TUPLE_SERIALIZER+"="+BlowfishTupleSerializer.class.getName() + " ..." ); |
| } catch (Exception ex) { |
| LOG.error(ex.getMessage()); |
| ex.printStackTrace(); |
| } |
| } |
| } |