com.eucalyptus.ws.handlers.IoAddressingHandler.java Source code

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Here is the source code for com.eucalyptus.ws.handlers.IoAddressingHandler.java

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/*************************************************************************
 * (c) Copyright 2016 Hewlett Packard Enterprise Development Company LP
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see http://www.gnu.org/licenses/.
 ************************************************************************/
package com.eucalyptus.ws.handlers;

import java.util.UUID;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMNamespace;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axiom.soap.SOAPHeader;
import org.apache.axiom.soap.SOAPHeaderBlock;
import com.eucalyptus.binding.HoldMe;
import com.eucalyptus.ws.IoMessage;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelOutboundHandlerAdapter;
import io.netty.channel.ChannelPromise;
import io.netty.handler.codec.http.HttpRequest;

/**
 *
 */
@ChannelHandler.Sharable
public class IoAddressingHandler extends ChannelOutboundHandlerAdapter {

    private static final String WSA_NAMESPACE = "http://www.w3.org/2005/08/addressing";
    private static final String WSA_NAMESPACE_PREFIX = "wsa";
    private static final String WSA_MESSAGE_ID = "MessageID";
    private static final String WSA_TO = "To";
    private static final String WSA_ACTION = "Action";

    private final String prefix;

    public IoAddressingHandler() {
        this("");
    }

    public IoAddressingHandler(final String prefix) {
        this.prefix = prefix;
    }

    @Override
    public void write(final ChannelHandlerContext ctx, final Object msg, final ChannelPromise promise)
            throws Exception {
        if (msg instanceof IoMessage && ((IoMessage) msg).isRequest()) {
            final IoMessage ioMessage = (IoMessage) msg;
            final HttpRequest httpRequest = (HttpRequest) ioMessage.getHttpMessage();
            final String action = addAddressing(prefix, ioMessage.getSoapEnvelope(), ioMessage.getOmMessage(),
                    httpRequest.getUri());
            httpRequest.headers().add("SOAPAction", action);
        }
        super.write(ctx, msg, promise);
    }

    static String addAddressing(final String prefix, final SOAPEnvelope soapEnvelope, final OMElement omMessage,
            final String uri) {
        // :: set action :://
        final String action = prefix + omMessage.getLocalName();
        final SOAPHeader header = soapEnvelope.getHeader();

        // :: set soap addressing info :://
        final OMNamespace wsaNs = HoldMe.getOMFactory().createOMNamespace(WSA_NAMESPACE, WSA_NAMESPACE_PREFIX);
        if (header != null) {
            final SOAPHeaderBlock wsaToHeader = header.addHeaderBlock(WSA_TO, wsaNs);
            wsaToHeader.setText(uri);
            final SOAPHeaderBlock wsaActionHeader = header.addHeaderBlock(WSA_ACTION, wsaNs);
            wsaActionHeader.setText(action);
            final SOAPHeaderBlock wsaMsgId = header.addHeaderBlock(WSA_MESSAGE_ID, wsaNs);
            wsaMsgId.setText("urn:uuid:" + UUID.randomUUID().toString().replaceAll("-", "").toUpperCase());
        }

        return action;
    }
}