GroupsToHttpHeaderInterceptor.java

/**
 * Copyright 2008 The University of North Carolina at Chapel Hill
 *
 * Licensed 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 edu.unc.lib.dl.acl.filter;

import org.apache.http.client.methods.HttpPost;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.ws.client.WebServiceClientException;
import org.springframework.ws.client.support.interceptor.ClientInterceptor;
import org.springframework.ws.context.MessageContext;
import org.springframework.ws.transport.context.TransportContext;
import org.springframework.ws.transport.context.TransportContextHolder;
import org.springframework.ws.transport.http.HttpComponentsConnection;

import edu.unc.lib.dl.acl.util.AccessGroupSet;
import edu.unc.lib.dl.acl.util.GroupsThreadStore;
import edu.unc.lib.dl.httpclient.HttpClientUtil;

public class GroupsToHttpHeaderInterceptor implements ClientInterceptor {
	private static final Logger LOG = LoggerFactory.getLogger(GroupsToHttpHeaderInterceptor.class);

	@Override
	public boolean handleRequest(MessageContext messageContext) throws WebServiceClientException {
		LOG.debug("In handleRequest()");
		AccessGroupSet groups = GroupsThreadStore.getGroups();
		if (groups != null) {
			LOG.debug("GOT GROUPS FROM THREAD");
			TransportContext context = TransportContextHolder.getTransportContext();
			HttpComponentsConnection connection = (HttpComponentsConnection) context.getConnection();
			HttpPost postMethod = connection.getHttpPost();
			postMethod.addHeader(HttpClientUtil.FORWARDED_GROUPS_HEADER, groups.joinAccessGroups(";", null, false));
			LOG.debug("Added HTTP header to POST: " + HttpClientUtil.FORWARDED_GROUPS_HEADER + " : " + groups.joinAccessGroups(";", null, false));
		} else {
			LOG.debug("NO GROUPS SET ON THREAD");
		}
		return true;
	}

	@Override
	public boolean handleResponse(MessageContext messageContext) throws WebServiceClientException {
		return true;
	}

	@Override
	public boolean handleFault(MessageContext messageContext) throws WebServiceClientException {
		return true;
	}

}