1 /* 2 * $HeadURL: http://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk/module-client/src/main/java/org/apache/http/impl/cookie/RFC2109DomainHandler.java $ 3 * $Revision: 653041 $ 4 * $Date: 2008-05-03 03:39:28 -0700 (Sat, 03 May 2008) $ 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 package org.apache.http.impl.cookie; 32 33 import java.util.Locale; 34 35 import org.apache.http.cookie.Cookie; 36 import org.apache.http.cookie.CookieAttributeHandler; 37 import org.apache.http.cookie.CookieOrigin; 38 import org.apache.http.cookie.MalformedCookieException; 39 import org.apache.http.cookie.SetCookie; 40 41 public class RFC2109DomainHandler implements CookieAttributeHandler { 42 RFC2109DomainHandler()43 public RFC2109DomainHandler() { 44 super(); 45 } 46 parse(final SetCookie cookie, final String value)47 public void parse(final SetCookie cookie, final String value) 48 throws MalformedCookieException { 49 if (cookie == null) { 50 throw new IllegalArgumentException("Cookie may not be null"); 51 } 52 if (value == null) { 53 throw new MalformedCookieException("Missing value for domain attribute"); 54 } 55 if (value.trim().length() == 0) { 56 throw new MalformedCookieException("Blank value for domain attribute"); 57 } 58 cookie.setDomain(value); 59 } 60 validate(final Cookie cookie, final CookieOrigin origin)61 public void validate(final Cookie cookie, final CookieOrigin origin) 62 throws MalformedCookieException { 63 if (cookie == null) { 64 throw new IllegalArgumentException("Cookie may not be null"); 65 } 66 if (origin == null) { 67 throw new IllegalArgumentException("Cookie origin may not be null"); 68 } 69 String host = origin.getHost(); 70 String domain = cookie.getDomain(); 71 if (domain == null) { 72 throw new MalformedCookieException("Cookie domain may not be null"); 73 } 74 if (!domain.equals(host)) { 75 int dotIndex = domain.indexOf('.'); 76 if (dotIndex == -1) { 77 throw new MalformedCookieException("Domain attribute \"" 78 + domain 79 + "\" does not match the host \"" 80 + host + "\""); 81 } 82 // domain must start with dot 83 if (!domain.startsWith(".")) { 84 throw new MalformedCookieException("Domain attribute \"" 85 + domain 86 + "\" violates RFC 2109: domain must start with a dot"); 87 } 88 // domain must have at least one embedded dot 89 dotIndex = domain.indexOf('.', 1); 90 if (dotIndex < 0 || dotIndex == domain.length() - 1) { 91 throw new MalformedCookieException("Domain attribute \"" 92 + domain 93 + "\" violates RFC 2109: domain must contain an embedded dot"); 94 } 95 host = host.toLowerCase(Locale.ENGLISH); 96 if (!host.endsWith(domain)) { 97 throw new MalformedCookieException( 98 "Illegal domain attribute \"" + domain 99 + "\". Domain of origin: \"" + host + "\""); 100 } 101 // host minus domain may not contain any dots 102 String hostWithoutDomain = host.substring(0, host.length() - domain.length()); 103 if (hostWithoutDomain.indexOf('.') != -1) { 104 throw new MalformedCookieException("Domain attribute \"" 105 + domain 106 + "\" violates RFC 2109: host minus domain may not contain any dots"); 107 } 108 } 109 } 110 match(final Cookie cookie, final CookieOrigin origin)111 public boolean match(final Cookie cookie, final CookieOrigin origin) { 112 if (cookie == null) { 113 throw new IllegalArgumentException("Cookie may not be null"); 114 } 115 if (origin == null) { 116 throw new IllegalArgumentException("Cookie origin may not be null"); 117 } 118 String host = origin.getHost(); 119 String domain = cookie.getDomain(); 120 if (domain == null) { 121 return false; 122 } 123 return host.equals(domain) || (domain.startsWith(".") && host.endsWith(domain)); 124 } 125 126 } 127