/*************************************************************************
* Copyright 2009-2014 Eucalyptus Systems, Inc.
*
* 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/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
*
* This file may incorporate work covered under the following copyright
* and permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
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* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE
* THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
* SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
* REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
* IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/
package com.eucalyptus.ws.handlers;
import java.io.ByteArrayOutputStream;
import java.nio.charset.StandardCharsets;
import javax.annotation.Nonnull;
import org.apache.axiom.soap.SOAP11Constants;
import org.apache.axiom.soap.SOAP12Constants;
import org.apache.axiom.soap.SOAPEnvelope;
import org.apache.axiom.soap.SOAPFactory;
import org.apache.axiom.soap.impl.builder.StAXSOAPModelBuilder;
import org.apache.log4j.Logger;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.buffer.ChannelBufferOutputStream;
import org.jboss.netty.buffer.ChannelBuffers;
import org.jboss.netty.channel.ChannelEvent;
import org.jboss.netty.channel.ChannelHandler;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.handler.codec.http.HttpHeaders;
import org.jboss.netty.handler.codec.http.HttpResponseStatus;
import com.eucalyptus.binding.Binding;
import com.eucalyptus.binding.BindingException;
import com.eucalyptus.binding.HoldMe;
import com.eucalyptus.http.MappingHttpMessage;
import com.eucalyptus.http.MappingHttpRequest;
import com.eucalyptus.http.MappingHttpResponse;
import com.eucalyptus.records.Logs;
import com.eucalyptus.util.Exceptions;
import com.google.common.collect.ImmutableMap;
@ChannelHandler.Sharable
public class SoapMarshallingHandler extends MessageStackHandler implements ExceptionMarshallerHandler {
private static Logger LOG = Logger.getLogger( SoapMarshallingHandler.class );
@Override
public void incomingMessage( final MessageEvent event ) throws Exception {
if ( event.getMessage( ) instanceof MappingHttpMessage ) {
final MappingHttpMessage httpMessage = ( MappingHttpMessage ) event.getMessage( );
final String content;
final boolean request;
if ( httpMessage instanceof MappingHttpRequest ) {
MappingHttpRequest mappingHttpRequest = (MappingHttpRequest) httpMessage;
content = mappingHttpRequest.getContentAsString( );
request = true;
} else {
MappingHttpResponse mappingHttpResponse = (MappingHttpResponse) httpMessage;
content = httpMessage.getContent( ).toString( StandardCharsets.UTF_8 );
request = false;
if ( content.isEmpty( ) ) {
httpMessage.setMessageString( "" );
httpMessage.setSoapEnvelope( Binding.createFault(
mappingHttpResponse.getStatus( ).getCode( ) < 500 ? "soapenv:Client" : "soapenv:Server",
"No content",
mappingHttpResponse.getStatus( ).toString( ) ) );
return;
}
}
httpMessage.setMessageString( content );
HoldMe.canHas.lock( );
SOAPEnvelope env = null;
try {
StAXSOAPModelBuilder soapBuilder = null;
try {
SOAPFactory factory = HoldMe.getOMSOAP11Factory( );
soapBuilder = new StAXSOAPModelBuilder( HoldMe.getXMLStreamReader( content ), factory , SOAP11Constants.SOAP_ENVELOPE_NAMESPACE_URI );
} catch ( Exception e ) {
SOAPFactory factory = HoldMe.getOMSOAP12Factory( );
soapBuilder = new StAXSOAPModelBuilder( HoldMe.getXMLStreamReader( content ), factory , SOAP12Constants.SOAP_ENVELOPE_NAMESPACE_URI );
}
env = ( SOAPEnvelope ) soapBuilder.getDocumentElement( );
} catch( Exception ex ) {
if ( request ) {
throw new BindingException( "Invalid request : " + ex.getMessage( ), ex );
} else {
env = Binding.createFault(
"soapenv:Server",
"Error parsing response",
content );
}
} finally {
HoldMe.canHas.unlock( );
}
httpMessage.setSoapEnvelope( env );
}
}
@Override
public void outgoingMessage( final ChannelHandlerContext ctx, final MessageEvent event ) throws Exception {
if ( event.getMessage( ) instanceof MappingHttpMessage ) {
final MappingHttpMessage httpMessage = ( MappingHttpMessage ) event.getMessage( );
final ChannelBuffer buffer = ChannelBuffers.dynamicBuffer( 4096 );
HoldMe.canHas.lock( );
try ( final ChannelBufferOutputStream out = new ChannelBufferOutputStream( buffer ) ) {
httpMessage.getSoapEnvelope( ).serialize( out );//HACK: does this need fixing for xml brokeness?
} finally {
HoldMe.canHas.unlock( );
}
httpMessage.addHeader( HttpHeaders.Names.CONTENT_LENGTH, String.valueOf( buffer.readableBytes( ) ) );
httpMessage.addHeader( HttpHeaders.Names.CONTENT_TYPE, "text/xml; charset=UTF-8" );
httpMessage.setContent( buffer );
}
}
@Nonnull
@Override
public ExceptionResponse marshallException( @Nonnull ChannelEvent event,
@Nonnull final HttpResponseStatus status,
@Nonnull final Throwable t ) throws Exception {
final SOAPEnvelope soapEnvelope = Binding.createFault(
status.getCode() < 500 ? "soapenv:Client" : "soapenv:Server",
t.getMessage(),
Logs.isExtrrreeeme() ?
Exceptions.string( t ) :
t.getMessage() );
final ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
HoldMe.canHas.lock();
try {
soapEnvelope.serialize( byteOut );
} finally {
HoldMe.canHas.unlock();
}
return new ExceptionResponse(
HttpResponseStatus.INTERNAL_SERVER_ERROR,
ChannelBuffers.wrappedBuffer( byteOut.toByteArray( ) ),
ImmutableMap.of( HttpHeaders.Names.CONTENT_TYPE, "text/xml; charset=UTF-8" )
);
}
}