1/*
2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/impl/cookie/RFC2965VersionAttributeHandler.java $
3 * $Revision: 590695 $
4 * $Date: 2007-10-31 07:55:41 -0700 (Wed, 31 Oct 2007) $
5 *
6 * ====================================================================
7 * Licensed to the Apache Software Foundation (ASF) under one
8 * or more contributor license agreements.  See the NOTICE file
9 * distributed with this work for additional information
10 * regarding copyright ownership.  The ASF licenses this file
11 * to you under the Apache License, Version 2.0 (the
12 * "License"); you may not use this file except in compliance
13 * with the License.  You may obtain a copy of the License at
14 *
15 *   http://www.apache.org/licenses/LICENSE-2.0
16 *
17 * Unless required by applicable law or agreed to in writing,
18 * software distributed under the License is distributed on an
19 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
20 * KIND, either express or implied.  See the License for the
21 * specific language governing permissions and limitations
22 * under the License.
23 * ====================================================================
24 *
25 * This software consists of voluntary contributions made by many
26 * individuals on behalf of the Apache Software Foundation.  For more
27 * information on the Apache Software Foundation, please see
28 * <http://www.apache.org/>.
29 *
30 */
31
32package org.apache.http.impl.cookie;
33
34import org.apache.http.cookie.ClientCookie;
35import org.apache.http.cookie.Cookie;
36import org.apache.http.cookie.CookieAttributeHandler;
37import org.apache.http.cookie.CookieOrigin;
38import org.apache.http.cookie.MalformedCookieException;
39import org.apache.http.cookie.SetCookie;
40import org.apache.http.cookie.SetCookie2;
41
42/**
43 * <tt>"Version"</tt> cookie attribute handler for RFC 2965 cookie spec.
44 */
45public class RFC2965VersionAttributeHandler implements CookieAttributeHandler {
46
47    public RFC2965VersionAttributeHandler() {
48        super();
49    }
50
51    /**
52     * Parse cookie version attribute.
53     */
54    public void parse(final SetCookie cookie, final String value)
55            throws MalformedCookieException {
56        if (cookie == null) {
57            throw new IllegalArgumentException("Cookie may not be null");
58        }
59        if (value == null) {
60            throw new MalformedCookieException(
61                    "Missing value for version attribute");
62        }
63        int version = -1;
64        try {
65            version = Integer.parseInt(value);
66        } catch (NumberFormatException e) {
67            version = -1;
68        }
69        if (version < 0) {
70            throw new MalformedCookieException("Invalid cookie version.");
71        }
72        cookie.setVersion(version);
73    }
74
75    /**
76     * validate cookie version attribute. Version attribute is REQUIRED.
77     */
78    public void validate(final Cookie cookie, final CookieOrigin origin)
79            throws MalformedCookieException {
80        if (cookie == null) {
81            throw new IllegalArgumentException("Cookie may not be null");
82        }
83        if (cookie instanceof SetCookie2) {
84            if (cookie instanceof ClientCookie
85                    && !((ClientCookie) cookie).containsAttribute(ClientCookie.VERSION_ATTR)) {
86                throw new MalformedCookieException(
87                        "Violates RFC 2965. Version attribute is required.");
88            }
89        }
90    }
91
92    public boolean match(final Cookie cookie, final CookieOrigin origin) {
93        return true;
94    }
95
96}