/*******************************************************************************
*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
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*******************************************************************************/
package edu.ucsb.eucalyptus.admin.server;
import java.io.IOException;
import java.util.UUID;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import com.eucalyptus.auth.crypto.Hmac;
import com.eucalyptus.auth.crypto.Hmacs;
import com.eucalyptus.auth.util.Hashes;
import com.eucalyptus.cluster.Clusters;
import com.eucalyptus.config.Configuration;
import com.eucalyptus.util.EucalyptusCloudException;
import edu.ucsb.eucalyptus.cloud.entities.SystemConfiguration;
public class Registration extends HttpServlet {
private static Logger LOG = Logger.getLogger( Registration.class );
private static String getMessage( String key, String uuid ) {
return "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" + "<Signature>\n" + " <SignedInfo>\n"
+ " <SignatureMethod>http://www.w3.org/2001/04/xmldsig-more#hmac-sha256</SignatureMethod>" + " </SignedInfo>\n" + " <SignatureValue>"
+ getSignature( key, uuid ) + " </SignatureValue>" + " <Object>\n" + getConfigurationString( uuid ) + "\n</Object>" + "</Signature>";
}
private static String getConfigurationString( String uuid ) {
return "<CloudSchema>\n" + " <Services type=\"array\">\n" + " <Service>\n" + " <Name>ec2</Name>\n" + " <EndpointUrl>"
+ SystemConfiguration.getCloudUrl( ) + "</EndpointUrl>\n" + " <Resources type=\"array\">\n" + " <Resource>\n"
+ " <Name>instances</Name>\n" + " </Resource>\n" + " <Resource>\n" + " <Name>security_groups</Name>\n"
+ " </Resource>\n" + " <Resource>\n" + " <Name>ssh_keys</Name>\n" + " </Resource>\n" + " <Resource>\n"
+ " <Name>images</Name>\n" + " </Resource>\n" + blockStorageConfiguration( ) + publicAddressConfiguration( )
+ " </Resources>\n" + " </Service>\n" + " <Service>\n" + " <Name>s3</Name>\n" + " <EndpointUrl>" + getWalrusUrl( )
+ "</EndpointUrl>\n" + " <Resources type=\"array\">\n" + " <Resource>\n" + " <Name>buckets</Name>\n" + " </Resource>\n"
+ " <Resource>\n" + " <Name>keys</Name>\n" + " </Resource>\n" + " </Resources>\n" + " </Service>\n"
+ " </Services>\n" + " <id>" + uuid + "</id>" + " <CloudType>eucalyptus</CloudType>\n" + " <CloudVersion>" + System.getProperty( "euca.version" )
+ "</CloudVersion>\n" + " <SchemaVersion>1.0</SchemaVersion>\n" + " <Description>Public cloud in the new cluster</Description>\n"
+ " <Credentials type=\"array\">\n" + " <Credential>\n" + " <Required type=\"boolean\">false</Required>\n"
+ " <Name>username</Name>\n" + " <Nickname>User ID</Nickname>\n" + " <Description>Username....</Description>\n"
+ " </Credential>\n" + " <Credential>\n" + " <Required type=\"boolean\">true</Required>\n" + " <Name>aws_access_key</Name>\n"
+ " <Nickname>Query ID</Nickname>\n" + " <Description>Access key....</Description>\n" + " </Credential>\n" + " <Credential>\n"
+ " <Required type=\"boolean\">true</Required>\n" + " <Name>aws_secret_access_key</Name>\n" + " <Nickname>Secret Key</Nickname>\n"
+ " <Description>Secret Access key....</Description>\n" + " </Credential>\n" + " </Credentials>\n" + "</CloudSchema>\n";
}
private static String blockStorageConfiguration( ) {
try {
if ( !Configuration.getStorageControllerConfigurations( ).isEmpty( ) ) {
return " <Resource>\n" + " <Name>ebs_snapshots</Name>\n" + " </Resource>\n" + " <Resource>\n"
+ " <Name>ebs_volumes</Name>\n" + " </Resource>\n";
}
} catch ( EucalyptusCloudException e ) {
LOG.debug( e, e );
}
return "";
}
private static String publicAddressConfiguration( ) {
if ( Clusters.getInstance( ).hasNetworking( ) )/*TODO: fix this lame hack.*/{
return " <Resource>\n" + " <Name>elastic_ips</Name>\n" + " </Resource>\n";
} else {
return "";
}
}
private static String getWalrusUrl( ) {
String walrusUrl;
try {
walrusUrl = SystemConfiguration.getWalrusUrl( );
} catch ( Exception e ) {
walrusUrl = "NOT REGISTERED.";
}
return walrusUrl;
}
private static String getRegistrationId( ) {
return SystemConfiguration.getSystemConfiguration( ).getRegistrationId( );
}
@Override
protected void doGet( final HttpServletRequest httpServletRequest, final HttpServletResponse httpServletResponse ) throws ServletException, IOException {
String uuid = UUID.randomUUID( ).toString( );
String registrationId = getRegistrationId( );
ServletOutputStream op = httpServletResponse.getOutputStream( );
LOG.info( "Using registrationId: " + registrationId );
op.write( getMessage( registrationId, UUID.randomUUID( ).toString( ) ).getBytes( ) );
op.flush( );
}
private static String getSignature( String key, String uuid ) {
SecretKeySpec signingKey = new SecretKeySpec( key.getBytes( ), Hmac.HmacSHA256.toString( ) );
try {
Mac mac = Hmac.HmacSHA256.getInstance( );
mac.init( signingKey );
byte[] rawHmac = mac.doFinal( uuid.getBytes( ) );
String sig = Hashes.getHexString( rawHmac );
LOG.warn( "\nkey='" + key + "'\nid='" + uuid + "'\nresult=" + sig );
return sig;
} catch ( Exception e ) {
LOG.error( e );
return "error: " + e.getMessage( );
}
}
}