/*
    *  Licensed to the Apache Software Foundation (ASF) under one
    *  or more contributor license agreements.  See the NOTICE file
    *  distributed with this work for additional information
    *  regarding copyright ownership.  The ASF 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.apache.mina.proxy;
  
  import static org.junit.Assert.assertEquals;
  
  import java.util.HashMap;
  
  import org.apache.mina.core.session.DummySession;
  import org.apache.mina.proxy.handlers.http.basic.HttpBasicAuthLogicHandler;
  import org.apache.mina.proxy.handlers.http.digest.DigestUtilities;
  import org.junit.Test;
  
  /**
   * HttpAuthTest.java - JUNIT tests of the HTTP Basic & Digest authentication mechanisms.
   * See <a href="http://www.ietf.org/rfc/rfc2617.txt">RFC 2617</a> .
   * 
   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
   * @since MINA 2.0.0-M3
   */
  public class HttpAuthTest {
  
      /**
       * The charset in use.
       */
      private final static String CHARSET_IN_USE = "ISO-8859-1";
  
      /**
       * Tests Basic authentication mechanism.
       */
      @Test
  
      public void testBasicAuthResponse() {
          String USER = "Aladdin";
          String PWD = "open sesame";
  
          assertEquals("QWxhZGRpbjpvcGVuIHNlc2FtZQ==", HttpBasicAuthLogicHandler
                  .createAuthorization(USER, PWD));
      }
  
      /**
       * Tests Http Digest authentication mechanism. 
       */
      @Test
      public void testDigestAuthResponse() {
          String USER = "Mufasa";
          String PWD = "Circle Of Life";
          String METHOD = "GET";
  
          HashMap<String, String> map = new HashMap<String, String>();
  
          map.put("realm", "testrealm@host.com");
          map.put("qop", "auth");
          map.put("nc", "00000001");
  
          map.put("cnonce", "0a4f113b");
  
          map.put("nonce", "dcd98b7102dd2f0e8b11d0f600bfb0c093");
          map.put("opaque", "5ccc069c403ebaf9f0171e9517f40e41");
          map.put("uri", "/dir/index.html");
          map.put("username", USER);
  
          String response = null;
          try {
              response = DigestUtilities.computeResponseValue(new DummySession(),
                      map, METHOD, PWD, CHARSET_IN_USE, null);
              assertEquals("6629fae49393a05397450978507c4ef1", response);
              writeResponse(map, response);
          } catch (Exception e) {
              //e.printStackTrace();
          }
      }
  
      /**
       * Pretty prints the digest response header .
       * 
       * @param map the map holding the authentication parameters
       * @param response the built digest response string
       */
      private void writeResponse(HashMap<String, String> map, String response) {
          map.put("response", response);
          StringBuilder sb = new StringBuilder("Digest ");
         boolean addSeparator = false;
 
         for (String key : map.keySet()) {
 
             if (addSeparator) {
                 sb.append(",\n\t\t\t ");
             } else {
                 addSeparator = true;
             }
 
             boolean quotedValue = !"qop".equals(key) && !"nc".equals(key);
             sb.append(key);
             if (quotedValue) {
                 sb.append("=\"").append(map.get(key)).append('\"');
             } else {
                 sb.append('=').append(map.get(key));
             }
         }
 
         //System.out.println("Proxy-Authorization: " + sb.toString());
     }
 }