001/*
002 *  Copyright 2017 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.plugins.site.headers;
017
018import java.util.Collection;
019import java.util.Collections;
020
021import org.apache.cocoon.environment.Request;
022import org.apache.cocoon.environment.Session;
023import org.apache.http.Header;
024import org.apache.http.message.BasicHeader;
025
026import org.ametys.plugins.core.impl.authentication.cas.AmetysCas20ProxyReceivingTicketValidationFilter;
027
028/**
029 * Add a request header with CAS proxy granting ticket
030 */
031public class ProxyGrantingTicketHeader implements RequestHeader
032{
033    @Override
034    public Collection<Header> getHeaders(Request request)
035    {
036        Session session = request.getSession(false);
037        if (session != null)
038        {
039            String casProxyGrantingTicket = (String) session.getAttribute(AmetysCas20ProxyReceivingTicketValidationFilter.SESSION_ATTRIBUTE_PROXY_GRANTING_TICKET);
040            if (casProxyGrantingTicket != null)
041            {
042                return Collections.singleton(new BasicHeader("X-Ametys-FO-PGT", casProxyGrantingTicket));
043            }
044        }
045        
046        return Collections.EMPTY_SET;
047    }
048}