mobile/android/thirdparty/ch/boye/httpclientandroidlib/client/protocol/RequestProxyAuthentication.java

branch
TOR_BUG_3246
changeset 4
fc2d59ddac77
equal deleted inserted replaced
-1:000000000000 0:32202ccb8685
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 ch.boye.httpclientandroidlib.client.protocol;
29
30 import java.io.IOException;
31
32 import ch.boye.httpclientandroidlib.annotation.Immutable;
33
34 import ch.boye.httpclientandroidlib.androidextra.HttpClientAndroidLog;
35 /* LogFactory removed by HttpClient for Android script. */
36 import ch.boye.httpclientandroidlib.Header;
37 import ch.boye.httpclientandroidlib.HttpException;
38 import ch.boye.httpclientandroidlib.HttpRequest;
39 import ch.boye.httpclientandroidlib.HttpRequestInterceptor;
40 import ch.boye.httpclientandroidlib.auth.AUTH;
41 import ch.boye.httpclientandroidlib.auth.AuthScheme;
42 import ch.boye.httpclientandroidlib.auth.AuthState;
43 import ch.boye.httpclientandroidlib.auth.AuthenticationException;
44 import ch.boye.httpclientandroidlib.auth.ContextAwareAuthScheme;
45 import ch.boye.httpclientandroidlib.auth.Credentials;
46 import ch.boye.httpclientandroidlib.conn.HttpRoutedConnection;
47 import ch.boye.httpclientandroidlib.conn.routing.HttpRoute;
48 import ch.boye.httpclientandroidlib.protocol.ExecutionContext;
49 import ch.boye.httpclientandroidlib.protocol.HttpContext;
50
51 /**
52 * Generates authentication header for the proxy host, if required,
53 * based on the actual state of the HTTP authentication context.
54 *
55 * @since 4.0
56 */
57 @Immutable
58 public class RequestProxyAuthentication implements HttpRequestInterceptor {
59
60 public HttpClientAndroidLog log = new HttpClientAndroidLog(getClass());
61
62 public RequestProxyAuthentication() {
63 super();
64 }
65
66 @SuppressWarnings("deprecation")
67 public void process(final HttpRequest request, final HttpContext context)
68 throws HttpException, IOException {
69 if (request == null) {
70 throw new IllegalArgumentException("HTTP request may not be null");
71 }
72 if (context == null) {
73 throw new IllegalArgumentException("HTTP context may not be null");
74 }
75
76 if (request.containsHeader(AUTH.PROXY_AUTH_RESP)) {
77 return;
78 }
79
80 HttpRoutedConnection conn = (HttpRoutedConnection) context.getAttribute(
81 ExecutionContext.HTTP_CONNECTION);
82 if (conn == null) {
83 this.log.debug("HTTP connection not set in the context");
84 return;
85 }
86 HttpRoute route = conn.getRoute();
87 if (route.isTunnelled()) {
88 return;
89 }
90
91 // Obtain authentication state
92 AuthState authState = (AuthState) context.getAttribute(
93 ClientContext.PROXY_AUTH_STATE);
94 if (authState == null) {
95 this.log.debug("Proxy auth state not set in the context");
96 return;
97 }
98
99 AuthScheme authScheme = authState.getAuthScheme();
100 if (authScheme == null) {
101 return;
102 }
103
104 Credentials creds = authState.getCredentials();
105 if (creds == null) {
106 this.log.debug("User credentials not available");
107 return;
108 }
109 if (authState.getAuthScope() != null || !authScheme.isConnectionBased()) {
110 try {
111 Header header;
112 if (authScheme instanceof ContextAwareAuthScheme) {
113 header = ((ContextAwareAuthScheme) authScheme).authenticate(
114 creds, request, context);
115 } else {
116 header = authScheme.authenticate(creds, request);
117 }
118 request.addHeader(header);
119 } catch (AuthenticationException ex) {
120 if (this.log.isErrorEnabled()) {
121 this.log.error("Proxy authentication error: " + ex.getMessage());
122 }
123 }
124 }
125 }
126
127 }

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