1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27
28 package org.apache.http.client.protocol;
29
30 import java.io.IOException;
31
32 import org.apache.http.HttpException;
33 import org.apache.http.HttpRequest;
34 import org.apache.http.annotation.Immutable;
35 import org.apache.http.auth.AUTH;
36 import org.apache.http.auth.AuthState;
37 import org.apache.http.conn.HttpRoutedConnection;
38 import org.apache.http.conn.routing.HttpRoute;
39 import org.apache.http.impl.client.HttpAuthenticator;
40 import org.apache.http.protocol.ExecutionContext;
41 import org.apache.http.protocol.HttpContext;
42 import org.apache.http.util.Args;
43
44 /**
45 * Generates authentication header for the proxy host, if required,
46 * based on the actual state of the HTTP authentication context.
47 *
48 * @since 4.0
49 *
50 * @deprecated (4.3) use {@link HttpAuthenticator}.
51 */
52 @Deprecated
53 @Immutable
54 public class RequestProxyAuthentication extends RequestAuthenticationBase {
55
56 public RequestProxyAuthentication() {
57 super();
58 }
59
60 public void process(final HttpRequest request, final HttpContext context)
61 throws HttpException, IOException {
62 Args.notNull(request, "HTTP request");
63 Args.notNull(context, "HTTP context");
64
65 if (request.containsHeader(AUTH.PROXY_AUTH_RESP)) {
66 return;
67 }
68
69 final HttpRoutedConnection conn = (HttpRoutedConnection) context.getAttribute(
70 ExecutionContext.HTTP_CONNECTION);
71 if (conn == null) {
72 this.log.debug("HTTP connection not set in the context");
73 return;
74 }
75 final HttpRoute route = conn.getRoute();
76 if (route.isTunnelled()) {
77 return;
78 }
79
80 // Obtain authentication state
81 final AuthState authState = (AuthState) context.getAttribute(
82 ClientContext.PROXY_AUTH_STATE);
83 if (authState == null) {
84 this.log.debug("Proxy auth state not set in the context");
85 return;
86 }
87 if (this.log.isDebugEnabled()) {
88 this.log.debug("Proxy auth state: " + authState.getState());
89 }
90 process(authState, request, context);
91 }
92
93 }