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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2013 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
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 * and therefore, elected the GPL Version 2 license, then the option applies
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// Portions Copyright [2018-2024] [Payara Foundation and/or its affiliates]
package com.sun.enterprise.security.webservices;

import com.sun.enterprise.deployment.ServiceRefPortInfo;
import com.sun.enterprise.deployment.ServiceReferenceDescriptor;
import com.sun.enterprise.deployment.runtime.common.MessageSecurityBindingDescriptor;
import com.sun.enterprise.security.ee.authentication.jakarta.WebServicesDelegate;
import com.sun.enterprise.security.jauth.jaspic.provider.PacketMessageInfo;
import com.sun.xml.ws.api.message.Message;
import com.sun.xml.ws.api.message.Packet;
import com.sun.xml.ws.api.model.wsdl.WSDLBoundOperation;
import com.sun.xml.ws.api.model.wsdl.WSDLPort;
import jakarta.inject.Singleton;
import jakarta.security.auth.message.MessageInfo;
import jakarta.xml.soap.MimeHeaders;
import jakarta.xml.soap.Name;
import jakarta.xml.soap.Node;
import jakarta.xml.soap.SOAPBody;
import jakarta.xml.soap.SOAPElement;
import jakarta.xml.soap.SOAPEnvelope;
import jakarta.xml.soap.SOAPException;
import jakarta.xml.soap.SOAPMessage;
import jakarta.xml.soap.SOAPPart;
import java.util.Iterator;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.namespace.QName;
import org.jvnet.hk2.annotations.Service;

/**
 *
 * @author kumar.jayanti
 */
@Service
@Singleton
public class WebServicesDelegateImpl implements WebServicesDelegate {

    protected static final Logger _logger = LogUtils.getLogger();

    private static final String DEFAULT_WEBSERVICES_PROVIDER = "com.sun.xml.wss.provider.wsit.WSITAuthConfigProvider";

    @Override
    public MessageSecurityBindingDescriptor getBinding(ServiceReferenceDescriptor svcRef, Map properties) {
        MessageSecurityBindingDescriptor binding = null;
        WSDLPort p = (WSDLPort) properties.get("WSDL_MODEL");
        QName portName = null;
        if (p != null) {
            portName = p.getName();
        }
        if (portName != null) {
            ServiceRefPortInfo i = svcRef.getPortInfoByPort(portName);
            if (i != null) {
                binding = i.getMessageSecurityBinding();
            }
        }
        return binding;
    }
    
    @Override
    public String getDefaultWebServicesProvider() {
        return DEFAULT_WEBSERVICES_PROVIDER;
    }

    @Override
    public String getAuthContextID(MessageInfo messageInfo) {
        if (!(messageInfo instanceof PacketMessageInfo)) {
            return getOpName((SOAPMessage) messageInfo.getRequestMessage());
        }

        // Make this more efficient by operating on packet
        String authContextID = null;
        PacketMessageInfo pmi = (PacketMessageInfo) messageInfo;

        Packet requestPacket = pmi.getRequestPacket();
        if (requestPacket != null) {
            Message message = requestPacket.getMessage();
            if (message != null) {
                WSDLPort port = (WSDLPort) messageInfo.getMap().get("WSDL_MODEL");
                if (port != null) {
                    WSDLBoundOperation boundOperation = message.getOperation(port);
                    if (boundOperation != null) {
                        QName name = boundOperation.getName();
                        if (name != null) {
                            authContextID = name.getLocalPart();
                        }
                    }
                }
            }
        }

        return authContextID;
    }

    private String getOpName(SOAPMessage message) {
        if (message == null) {
            return null;
        }

        String opName = null;

        // First look for a SOAPAction header.
        // this is what .net uses to identify the operation

        MimeHeaders headers = message.getMimeHeaders();
        if (headers != null) {
            String[] actions = headers.getHeader("SOAPAction");
            if (actions != null && actions.length > 0) {
                opName = actions[0];
                if (opName != null && opName.equals("\"\"")) {
                    opName = null;
                }
            }
        }

        // If that doesn't work then we default to trying the name
        // of the first child element of the SOAP envelope.

        if (opName == null) {
            Name name = getName(message);
            if (name != null) {
                opName = name.getLocalName();
            }
        }

        return opName;
    }

    private Name getName(SOAPMessage message) {
        Name rvalue = null;
        SOAPPart soap = message.getSOAPPart();
        if (soap != null) {
            try {
                SOAPEnvelope envelope = soap.getEnvelope();
                if (envelope != null) {
                    SOAPBody body = envelope.getBody();
                    if (body != null) {
                        Iterator it = body.getChildElements();
                        while (it.hasNext()) {
                            Node node = it.next();
                            if (node instanceof SOAPElement) {
                                rvalue = ((SOAPElement) node).getElementName();
                                break;
                            }
                        }
                    }
                }
            } catch (SOAPException se) {
                if (_logger.isLoggable(Level.FINE)) {
                    _logger.log(Level.FINE, "WSS: Unable to get SOAP envelope", se);
                }
            }
        }
        return rvalue;
    }
}