/*
* Copyright 2007 AOL, LLC.
* Portions Copyright 2009 Apache Software Foundation
*
* 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.apache.roller.weblogger.webservices.oauth;
import java.io.IOException;
import java.io.OutputStream;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.oauth.OAuth;
import net.oauth.OAuthAccessor;
import net.oauth.OAuthConsumer;
import net.oauth.OAuthMessage;
import net.oauth.server.OAuthServlet;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.roller.weblogger.business.OAuthManager;
import org.apache.roller.weblogger.business.WebloggerFactory;
/**
* Request token request handler
*
* @author Praveen Alavilli
* @author Dave Johnson (adapted for Roller)
*/
public class RequestTokenServlet extends HttpServlet {
protected static Log log =
LogFactory.getFactory().getInstance(RequestTokenServlet.class);
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
}
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
processRequest(request, response);
}
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
processRequest(request, response);
}
public void processRequest(HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
try {
OAuthMessage requestMessage = OAuthServlet.getMessage(request, null);
OAuthManager omgr = WebloggerFactory.getWeblogger().getOAuthManager();
OAuthAccessor accessor = omgr.getAccessor(requestMessage);
if (accessor == null) {
OAuthConsumer consumer = omgr.getConsumer(requestMessage);
accessor = new OAuthAccessor(consumer);
omgr.getValidator().validateMessage(requestMessage, accessor);
{
// Support the 'Variable Accessor Secret' extension
// described in http://oauth.pbwiki.com/AccessorSecret
String secret = requestMessage.getParameter("oauth_accessor_secret");
if (secret != null) {
accessor.setProperty(OAuthConsumer.ACCESSOR_SECRET, secret);
}
}
// generate request_token and secret
omgr.generateRequestToken(accessor);
WebloggerFactory.getWeblogger().flush();
}
response.setContentType("text/plain");
OutputStream out = response.getOutputStream();
String token = accessor.requestToken != null
? accessor.requestToken: accessor.accessToken;
OAuth.formEncode(OAuth.newList(
"oauth_token", token,
"oauth_token_secret", accessor.tokenSecret), out);
out.close();
} catch (Exception e){
handleException(e, request, response, true);
}
}
public void handleException(Exception e, HttpServletRequest request,
HttpServletResponse response, boolean sendBody)
throws IOException, ServletException {
log.debug("ERROR authorizing token", e);
String realm = (request.isSecure())?"https://":"http://";
realm += request.getLocalName();
OAuthServlet.handleException(response, e, realm, sendBody);
}
}