<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ page trimDirectiveWhitespaces="true" %>
<%@ page import="java.io.IOException" %>
<%@ page import="java.io.PrintWriter" %>
<%@ page import="javax.servlet.ServletConfig" %>
<%@ page import="javax.servlet.ServletException" %>
<%@ page import="javax.servlet.http.HttpServlet" %>
<%@ page import="javax.servlet.http.HttpServletRequest" %>
<%@ page import="javax.servlet.http.HttpServletResponse" %>
<%@ page import="net.oauth.OAuth" %>
<%@ page import="net.oauth.OAuthAccessor" %>
<%@ page import="net.oauth.OAuthMessage" %>
<%@ page import="net.oauth.example.provider.core.SampleOAuthProvider" %>
<%@ page import="net.oauth.server.OAuthServlet" %>
<%@ page import="java.io.OutputStream" %>
<%@ page import="net.oauth.OAuthProblemException" %>


<%
/*
 * Copyright 2007 AOL, LLC.
 *
 * 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.
 */


/**
 * Access Token request handler
 *
 * @author Praveen Alavilli
 */

	try {    
System.out.println("access_token");            
	  OAuthMessage requestMessage = OAuthServlet.getMessage(request, null);
            
	  OAuthAccessor accessor = SampleOAuthProvider.getAccessor(requestMessage);
	  SampleOAuthProvider.VALIDATOR.validateMessage(requestMessage, accessor);

System.out.println("access_token - requestMessage: " + requestMessage);            
System.out.println("accessor: " + accessor);            
            
	  // make sure token is authorized
	  if (!Boolean.TRUE.equals(accessor.getProperty("authorized"))) {
		  OAuthProblemException problem = new OAuthProblemException("permission_denied");
		 throw problem;
	  }
	  // generate access token and secret
	  SampleOAuthProvider.generateAccessToken(accessor);
            
	  response.setContentType("text/plain");
	  OutputStream myOut = response.getOutputStream();
	  OAuth.formEncode(OAuth.newList("oauth_token", accessor.accessToken,
							   "oauth_token_secret", accessor.tokenSecret),
				    myOut);
	  myOut.close();
            
   } catch (Exception e){
		e.printStackTrace();
	  SampleOAuthProvider.handleException(e, request, response, true);
   }

%>