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The OpenSAML-J library provides tools to support developers working with the Security Assertion Markup Language (SAML).

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/*
 * Licensed to the University Corporation for Advanced Internet Development, 
 * Inc. (UCAID) under one or more contributor license agreements.  See the 
 * NOTICE file distributed with this work for additional information regarding
 * copyright ownership. The UCAID 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 org.opensaml.saml2.binding.decoding;

import org.opensaml.common.binding.SAMLMessageContext;
import org.opensaml.common.xml.SAMLConstants;
import org.opensaml.ws.transport.http.HTTPInTransport;
import org.opensaml.xml.parse.ParserPool;
import org.opensaml.xml.util.DatatypeHelper;

/** Message decoder implementing the SAML 2.0 HTTP POST-SimpleSign binding. */
public class HTTPPostSimpleSignDecoder extends HTTPPostDecoder {

    /**
     * Constructor.
     *
     */
    public HTTPPostSimpleSignDecoder() {
        super();
    }

    /**
     * Constructor.
     *
     * @param pool parser pool used to deserialize messages
     */
    public HTTPPostSimpleSignDecoder(ParserPool pool) {
        super(pool);
    }

    /** {@inheritDoc} */
    public String getBindingURI() {
        return SAMLConstants.SAML2_POST_SIMPLE_SIGN_BINDING_URI;
    }

    /** {@inheritDoc} */
    protected boolean isMessageSigned(SAMLMessageContext messageContext) {
        HTTPInTransport inTransport = (HTTPInTransport) messageContext.getInboundMessageTransport();
        String sigParam = inTransport.getParameterValue("Signature");
        return (!DatatypeHelper.isEmpty(sigParam)) || super.isMessageSigned(messageContext);
    }
    
}