org.italiangrid.voms.request.impl.RESTProtocol Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of voms-api-java Show documentation
Java APIs to validate and request VOMS attribute certificates
There is a newer version: 3.3.2
/**
 * Copyright (c) Istituto Nazionale di Fisica Nucleare, 2006-2012.
 *
 * 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 org.italiangrid.voms.request.impl;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

import javax.net.ssl.HttpsURLConnection;

import org.italiangrid.voms.VOMSError;
import org.italiangrid.voms.request.VOMSACRequest;
import org.italiangrid.voms.request.VOMSProtocol;
import org.italiangrid.voms.request.VOMSProtocolError;
import org.italiangrid.voms.request.VOMSProtocolListener;
import org.italiangrid.voms.request.VOMSResponse;
import org.italiangrid.voms.request.VOMSServerInfo;

import eu.emi.security.authn.x509.X509CertChainValidatorExt;
import eu.emi.security.authn.x509.X509Credential;

/**
 * Protocol implementing the REST-style interface.
 * 
 * @author valerioventuri
 * 
 */
public class RESTProtocol extends AbstractVOMSProtocol implements VOMSProtocol {

	public RESTProtocol(X509CertChainValidatorExt validator, 
			VOMSProtocolListener listener, 
			int connectTimeout, 
			int readTimeout) {
		super(validator, listener, connectTimeout, readTimeout);
	}
	

	public VOMSResponse doRequest(VOMSServerInfo endpoint, X509Credential credential, VOMSACRequest request) {

		RESTServiceURLBuilder restQueryBuilder = new RESTServiceURLBuilder();
		URL serviceUrl = restQueryBuilder.build(endpoint.getURL(), request);
		RESTVOMSResponseParsingStrategy responseParsingStrategy = new RESTVOMSResponseParsingStrategy();

		HttpsURLConnection connection = null;

		try {

			connection = (HttpsURLConnection) serviceUrl.openConnection();
			
			connection.setConnectTimeout(connectTimeout);
			connection.setReadTimeout(readTimeout);

		} catch (IOException e) {
			
			throw new VOMSProtocolError(e.getMessage(), endpoint, request, credential, e);
		}

		connection.setSSLSocketFactory(getSSLSocketFactory(credential));

		listener.notifyHTTPRequest(serviceUrl.toExternalForm());
		
		try {

			connection.connect();

		} catch (IOException e) {
			
			throw new VOMSProtocolError(e.getMessage(), endpoint, request, credential, e);
			
		}
		
		InputStream is = null;

		try{
			if (connection.getResponseCode() != 200){
				is = connection.getErrorStream();
			}else
				is = connection.getInputStream();
		
		}catch (IOException e) {
			
			throw new VOMSError(e.getMessage(),e);
		}
		
		VOMSResponse response = responseParsingStrategy.parse(is);

		listener.notifyReceivedResponse(response);
		connection.disconnect();

		return response;
	}

}