/*******************************************************************************
*Copyright (c) 2009 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, only version 3 of the License.
*
*
* This file 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., 130 Castilian
* Dr., Goleta, CA 93101 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
* notice, this list of conditions and the following disclaimer 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 FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 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.
*******************************************************************************/
/*
* Author: chris grzegorczyk <grze@eucalyptus.com>
*/
package com.eucalyptus.ws.server;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.net.URLCodec;
import org.apache.log4j.Logger;
import org.jboss.netty.buffer.ChannelBuffer;
import org.jboss.netty.handler.codec.http.HttpMethod;
import org.jboss.netty.handler.codec.http.HttpRequest;
import com.eucalyptus.http.MappingHttpRequest;
import com.eucalyptus.ws.stages.HmacUserAuthenticationStage;
import com.eucalyptus.ws.stages.QueryBindingStage;
import com.eucalyptus.ws.stages.UnrollableStage;
public class EucalyptusQueryPipeline extends FilteredPipeline {
private static Logger LOG = Logger.getLogger( EucalyptusQueryPipeline.class );
@Override
protected void addStages( List<UnrollableStage> stages ) {
stages.add( new HmacUserAuthenticationStage( ) );
stages.add( new QueryBindingStage( ) );
}
@Override
protected boolean checkAccepts( HttpRequest message ) {
if ( message instanceof MappingHttpRequest ) {
MappingHttpRequest httpRequest = ( MappingHttpRequest ) message;
if ( httpRequest.getMethod( ).equals( HttpMethod.POST ) ) {
Map<String,String> parameters = new HashMap<String,String>( httpRequest.getParameters( ) );
ChannelBuffer buffer = httpRequest.getContent( );
buffer.markReaderIndex( );
byte[] read = new byte[buffer.readableBytes( )];
buffer.readBytes( read );
String query = new String( read );
buffer.resetReaderIndex( );
for ( String p : query.split( "&" ) ) {
String[] splitParam = p.split( "=" );
String lhs = splitParam[0];
String rhs = splitParam.length == 2 ? splitParam[1] : null;
try {
if( lhs != null ) lhs = new URLCodec().decode(lhs);
} catch ( DecoderException e ) {}
try {
if( rhs != null ) rhs = new URLCodec().decode(rhs);
} catch ( DecoderException e ) {}
parameters.put( lhs, rhs );
}
for ( RequiredQueryParams p : RequiredQueryParams.values( ) ) {
if ( !parameters.containsKey( p.toString( ) ) ) {
return false;
}
}
httpRequest.getParameters( ).putAll( parameters );
} else {
for ( RequiredQueryParams p : RequiredQueryParams.values( ) ) {
if ( !httpRequest.getParameters( ).containsKey( p.toString( ) ) ) {
return false;
}
}
}
return true && message.getUri( ).startsWith( "/services/Eucalyptus" );
}
return false;
}
@Override
public String getPipelineName( ) {
return "eucalyptus-query";
}
public enum RequiredQueryParams {
SignatureVersion,
Version
}
public enum OperationParameter {
Operation, Action;
private static String patterh = buildPattern();
private static String buildPattern()
{
StringBuilder s = new StringBuilder();
for ( OperationParameter op : OperationParameter.values() ) s.append( "(" ).append( op.name() ).append( ")|" );
s.deleteCharAt( s.length() - 1 );
return s.toString();
}
public static String toPattern()
{
return patterh;
}
public static String getParameter( Map<String,String> map )
{
for( OperationParameter op : OperationParameter.values() )
if( map.containsKey( op.toString() ) )
return map.get( op.toString() );
return null;
}
}
}