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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  package org.apache.http.impl.cookie;
28  
29  import org.apache.http.annotation.Immutable;
30  import org.apache.http.cookie.Cookie;
31  import org.apache.http.cookie.CookieOrigin;
32  import org.apache.http.cookie.CookieRestrictionViolationException;
33  import org.apache.http.cookie.MalformedCookieException;
34  import org.apache.http.cookie.SetCookie;
35  import org.apache.http.util.Args;
36  
37  /**
38   *
39   * @since 4.0
40   */
41  @Immutable
42  public class RFC2109VersionHandler extends AbstractCookieAttributeHandler {
43  
44      public RFC2109VersionHandler() {
45          super();
46      }
47  
48      @Override
49      public void parse(final SetCookie cookie, final String value)
50              throws MalformedCookieException {
51          Args.notNull(cookie, "Cookie");
52          if (value == null) {
53              throw new MalformedCookieException("Missing value for version attribute");
54          }
55          if (value.trim().isEmpty()) {
56              throw new MalformedCookieException("Blank value for version attribute");
57          }
58          try {
59             cookie.setVersion(Integer.parseInt(value));
60          } catch (final NumberFormatException e) {
61              throw new MalformedCookieException("Invalid version: "
62                  + e.getMessage());
63          }
64      }
65  
66      @Override
67      public void validate(final Cookie cookie, final CookieOrigin origin)
68              throws MalformedCookieException {
69          Args.notNull(cookie, "Cookie");
70          if (cookie.getVersion() < 0) {
71              throw new CookieRestrictionViolationException("Cookie version may not be negative");
72          }
73      }
74  
75  }