Wed, 31 Dec 2014 06:09:35 +0100
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 /*
2 * ====================================================================
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * 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, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ====================================================================
19 *
20 * This software consists of voluntary contributions made by many
21 * individuals on behalf of the Apache Software Foundation. For more
22 * information on the Apache Software Foundation, please see
23 * <http://www.apache.org/>.
24 *
25 */
27 package ch.boye.httpclientandroidlib.impl.auth;
29 import java.util.HashMap;
30 import java.util.Locale;
31 import java.util.Map;
33 import ch.boye.httpclientandroidlib.annotation.NotThreadSafe;
35 import ch.boye.httpclientandroidlib.HeaderElement;
36 import ch.boye.httpclientandroidlib.auth.MalformedChallengeException;
37 import ch.boye.httpclientandroidlib.message.BasicHeaderValueParser;
38 import ch.boye.httpclientandroidlib.message.HeaderValueParser;
39 import ch.boye.httpclientandroidlib.message.ParserCursor;
40 import ch.boye.httpclientandroidlib.util.CharArrayBuffer;
42 /**
43 * Abstract authentication scheme class that lays foundation for all
44 * RFC 2617 compliant authentication schemes and provides capabilities common
45 * to all authentication schemes defined in RFC 2617.
46 *
47 * @since 4.0
48 */
49 @NotThreadSafe // AuthSchemeBase, params
50 public abstract class RFC2617Scheme extends AuthSchemeBase {
52 /**
53 * Authentication parameter map.
54 */
55 private Map<String, String> params;
57 /**
58 * Default constructor for RFC2617 compliant authentication schemes.
59 */
60 public RFC2617Scheme() {
61 super();
62 }
64 @Override
65 protected void parseChallenge(
66 final CharArrayBuffer buffer, int pos, int len) throws MalformedChallengeException {
67 HeaderValueParser parser = BasicHeaderValueParser.DEFAULT;
68 ParserCursor cursor = new ParserCursor(pos, buffer.length());
69 HeaderElement[] elements = parser.parseElements(buffer, cursor);
70 if (elements.length == 0) {
71 throw new MalformedChallengeException("Authentication challenge is empty");
72 }
74 this.params = new HashMap<String, String>(elements.length);
75 for (HeaderElement element : elements) {
76 this.params.put(element.getName(), element.getValue());
77 }
78 }
80 /**
81 * Returns authentication parameters map. Keys in the map are lower-cased.
82 *
83 * @return the map of authentication parameters
84 */
85 protected Map<String, String> getParameters() {
86 if (this.params == null) {
87 this.params = new HashMap<String, String>();
88 }
89 return this.params;
90 }
92 /**
93 * Returns authentication parameter with the given name, if available.
94 *
95 * @param name The name of the parameter to be returned
96 *
97 * @return the parameter with the given name
98 */
99 public String getParameter(final String name) {
100 if (name == null) {
101 throw new IllegalArgumentException("Parameter name may not be null");
102 }
103 if (this.params == null) {
104 return null;
105 }
106 return this.params.get(name.toLowerCase(Locale.ENGLISH));
107 }
109 /**
110 * Returns authentication realm. The realm may not be null.
111 *
112 * @return the authentication realm
113 */
114 public String getRealm() {
115 return getParameter("realm");
116 }
118 }