OpenIDProviderServlet.java

/*
 * Copyright (c) 2005-2010, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 *  WSO2 Inc. 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.wso2.carbon.identity.provider.openid;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.wso2.carbon.identity.base.IdentityException;
import org.wso2.carbon.identity.core.util.IdentityUtil;
import org.wso2.carbon.identity.provider.openid.handlers.OpenIDHandler;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * This Servlet is the OpenID Provider endpoint
 */
public class OpenIDProviderServlet extends HttpServlet {

    private static final long serialVersionUID = 58052109007507494L;
    private static final Log log = LogFactory.getLog(OpenIDProviderServlet.class);

    @Override
    protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        try{
            String frontEndUrl = org.wso2.carbon.identity.provider.openid.OpenIDUtil.getOpenIDLoginPageURL();
            OpenIDHandler provider = OpenIDHandler.getInstance(null);
            provider.setFrontEndUrl(frontEndUrl);
            String response = null;

            try {
                response = provider.processRequest(req, resp);
            } catch (IdentityException e) {
                throw new ServletException(e);
            }
            // at this time the response may be already committed
            try {
                if (response != null) {
                    resp.sendRedirect(response);
                }
            } catch (Exception e) {
                log.error(e);
            }
        } finally {
            // clear thread local
            OpenIDServerManager.clearThreadLocalAssociation();
        }
    }

}