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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (STORM-348) (Security) Netty SASL Authentication
Date Fri, 25 Jul 2014 15:46:39 GMT

    [ https://issues.apache.org/jira/browse/STORM-348?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14074486#comment-14074486
] 

ASF GitHub Bot commented on STORM-348:
--------------------------------------

Github user revans2 commented on a diff in the pull request:

    https://github.com/apache/incubator-storm/pull/202#discussion_r15407759
  
    --- Diff: storm-core/src/jvm/backtype/storm/messaging/netty/SaslStormClientHandler.java
---
    @@ -0,0 +1,155 @@
    +/**
    + * 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.messaging.netty;
    +
    +import java.io.IOException;
    +
    +import org.jboss.netty.channel.Channel;
    +import org.jboss.netty.channel.ChannelHandlerContext;
    +import org.jboss.netty.channel.ChannelStateEvent;
    +import org.jboss.netty.channel.Channels;
    +import org.jboss.netty.channel.MessageEvent;
    +import org.jboss.netty.channel.SimpleChannelUpstreamHandler;
    +import org.slf4j.Logger;
    +import org.slf4j.LoggerFactory;
    +
    +import backtype.storm.Config;
    +
    +public class SaslStormClientHandler extends SimpleChannelUpstreamHandler {
    +
    +	private static final Logger LOG = LoggerFactory
    +			.getLogger(SaslStormClientHandler.class);
    +	private Client client;
    +	long start_time;
    +	/** Used for client or server's token to send or receive from each other. */
    +	private byte[] token;
    +	private String topologyName;
    +
    +	public SaslStormClientHandler(Client client) throws IOException {
    +		this.client = client;
    +		start_time = System.currentTimeMillis();
    +		getSASLCredentials();
    +	}
    +
    +	@Override
    +	public void channelConnected(ChannelHandlerContext ctx,
    +			ChannelStateEvent event) {
    +		// register the newly established channel
    +		Channel channel = ctx.getChannel();
    +
    +		LOG.info("Connection established from " + channel.getLocalAddress()
    +				+ " to " + channel.getRemoteAddress());
    +
    +		try {
    +			SaslNettyClient saslNettyClient = SaslNettyClientState.getSaslNettyClient
    +					.get(channel);
    +
    +			if (saslNettyClient == null) {
    +				LOG.debug("Creating saslNettyClient now " + "for channel: "
    +						+ channel);
    +				saslNettyClient = new SaslNettyClient(topologyName, token);
    +				SaslNettyClientState.getSaslNettyClient.set(channel,
    +						saslNettyClient);
    +			}
    +			channel.write(ControlMessage.SASL_TOKEN_MESSAGE_REQUEST);
    +		} catch (Exception e) {
    +			LOG.error("Failed to authenticate with server " + "due to error: "
    +					+ e);
    --- End diff --
    
    can we change this to a ", e" instead of a "+ e" that way we can get the stack trace in
the logs too.


> (Security) Netty SASL Authentication
> ------------------------------------
>
>                 Key: STORM-348
>                 URL: https://issues.apache.org/jira/browse/STORM-348
>             Project: Apache Storm (Incubating)
>          Issue Type: Bug
>            Reporter: Robert Joseph Evans
>            Assignee: Raghavendra Nandagopal
>              Labels: security
>         Attachments: Storm-Netty Authentication.pdf
>
>
> Currently The Netty transport does no authentication at all.  You can encrypt the tuples
being sent, but that is a huge performance hit for many cases that do not need it.  We should
support simple SASL authentication when Netty first connects to an external process.  We probably
want to use something similar to what we do for ZK, and generate a random secret for each
topology.



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