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 * 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 */
28 package ch.boye.httpclientandroidlib.client.methods;
30 import java.net.URI;
31 import java.util.HashSet;
32 import java.util.Set;
34 import ch.boye.httpclientandroidlib.annotation.NotThreadSafe;
36 import ch.boye.httpclientandroidlib.Header;
37 import ch.boye.httpclientandroidlib.HeaderElement;
38 import ch.boye.httpclientandroidlib.HeaderIterator;
39 import ch.boye.httpclientandroidlib.HttpResponse;
41 /**
42 * HTTP OPTIONS method.
43 * <p>
44 * The HTTP OPTIONS method is defined in section 9.2 of
45 * <a href="http://www.ietf.org/rfc/rfc2616.txt">RFC2616</a>:
46 * <blockquote>
47 * The OPTIONS method represents a request for information about the
48 * communication options available on the request/response chain
49 * identified by the Request-URI. This method allows the client to
50 * determine the options and/or requirements associated with a resource,
51 * or the capabilities of a server, without implying a resource action
52 * or initiating a resource retrieval.
53 * </blockquote>
54 * </p>
55 *
56 * @since 4.0
57 */
58 @NotThreadSafe
59 public class HttpOptions extends HttpRequestBase {
61 public final static String METHOD_NAME = "OPTIONS";
63 public HttpOptions() {
64 super();
65 }
67 public HttpOptions(final URI uri) {
68 super();
69 setURI(uri);
70 }
72 /**
73 * @throws IllegalArgumentException if the uri is invalid.
74 */
75 public HttpOptions(final String uri) {
76 super();
77 setURI(URI.create(uri));
78 }
80 @Override
81 public String getMethod() {
82 return METHOD_NAME;
83 }
85 public Set<String> getAllowedMethods(final HttpResponse response) {
86 if (response == null) {
87 throw new IllegalArgumentException("HTTP response may not be null");
88 }
90 HeaderIterator it = response.headerIterator("Allow");
91 Set<String> methods = new HashSet<String>();
92 while (it.hasNext()) {
93 Header header = it.nextHeader();
94 HeaderElement[] elements = header.getElements();
95 for (HeaderElement element : elements) {
96 methods.add(element.getName());
97 }
98 }
99 return methods;
100 }
102 }