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1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with the License.  You may obtain a copy of the License at
9    *
10   *    http://www.apache.org/licenses/LICENSE-2.0
11   *
12   *  Unless required by applicable law or agreed to in writing,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License.
18   *
19   */
20  package org.apache.mina.proxy.handlers.http;
21  
22  import org.apache.mina.proxy.ProxyAuthException;
23  import org.apache.mina.proxy.handlers.http.basic.HttpBasicAuthLogicHandler;
24  import org.apache.mina.proxy.handlers.http.basic.HttpNoAuthLogicHandler;
25  import org.apache.mina.proxy.handlers.http.digest.HttpDigestAuthLogicHandler;
26  import org.apache.mina.proxy.handlers.http.ntlm.HttpNTLMAuthLogicHandler;
27  import org.apache.mina.proxy.session.ProxyIoSession;
28  
29  /**
30   * HttpAuthenticationMethods.java - Enumerates all known http authentication methods.
31   * 
32   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
33   * @since MINA 2.0.0-M3
34   */
35  public enum HttpAuthenticationMethods {
36      /** No authentication */
37      NO_AUTH(1), 
38      
39      /** Basic authentication */
40      BASIC(2), 
41      
42      /** NTLM (Microsoft) authentication */
43      NTLM(3), 
44      
45      /** Digest authentication */
46      DIGEST(4);
47  
48      private final int id;
49  
50      private HttpAuthenticationMethods(int id) {
51          this.id = id;
52      }
53  
54      /**
55       * @return the authentication mechanism id.
56       */
57      public int getId() {
58          return id;
59      }
60  
61      /**
62       * Creates an {@link AbstractAuthLogicHandler} to handle the authentication mechanism.
63       * 
64       * @param proxyIoSession the proxy session object
65       * @return a new logic handler 
66       * @throws ProxyAuthException If we get an error during the proxy authentication
67       */
68      public AbstractAuthLogicHandler getNewHandler(ProxyIoSession proxyIoSession) throws ProxyAuthException {
69          return getNewHandler(this.id, proxyIoSession);
70      }
71  
72      /**
73       * Creates an {@link AbstractAuthLogicHandler} to handle the authentication mechanism.
74       * 
75       * @param method the authentication mechanism to use
76       * @param proxyIoSession the proxy session object
77       * @return a new logic handler 
78       * @throws ProxyAuthException If we get an error during the proxy authentication
79       */
80      public static AbstractAuthLogicHandler getNewHandler(int method, ProxyIoSession proxyIoSession)
81              throws ProxyAuthException {
82  
83          if (method == BASIC.id)
84              return new HttpBasicAuthLogicHandler(proxyIoSession);
85          else if (method == DIGEST.id)
86              return new HttpDigestAuthLogicHandler(proxyIoSession);
87          else if (method == NTLM.id)
88              return new HttpNTLMAuthLogicHandler(proxyIoSession);
89          else if (method == NO_AUTH.id)
90              return new HttpNoAuthLogicHandler(proxyIoSession);
91          else
92              return null;
93      }
94  }