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82 lines
2.6 KiB
Java
82 lines
2.6 KiB
Java
/*
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* ====================================================================
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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* ====================================================================
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*
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* This software consists of voluntary contributions made by many
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* individuals on behalf of the Apache Software Foundation. For more
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* information on the Apache Software Foundation, please see
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* <http://www.apache.org/>.
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*
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*/
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package ch.boye.httpclientandroidlib.cookie;
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import java.io.Serializable;
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import java.util.Comparator;
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import ch.boye.httpclientandroidlib.annotation.Immutable;
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/**
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* This cookie comparator ensures that multiple cookies satisfying
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* a common criteria are ordered in the <tt>Cookie</tt> header such
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* that those with more specific Path attributes precede those with
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* less specific.
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*
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* <p>
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* This comparator assumes that Path attributes of two cookies
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* path-match a commmon request-URI. Otherwise, the result of the
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* comparison is undefined.
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* </p>
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*
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*
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* @since 4.0
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*/
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@Immutable
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public class CookiePathComparator implements Serializable, Comparator<Cookie> {
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private static final long serialVersionUID = 7523645369616405818L;
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private String normalizePath(final Cookie cookie) {
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String path = cookie.getPath();
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if (path == null) {
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path = "/";
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}
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if (!path.endsWith("/")) {
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path = path + '/';
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}
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return path;
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}
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public int compare(final Cookie c1, final Cookie c2) {
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String path1 = normalizePath(c1);
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String path2 = normalizePath(c2);
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if (path1.equals(path2)) {
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return 0;
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} else if (path1.startsWith(path2)) {
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return -1;
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} else if (path2.startsWith(path1)) {
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return 1;
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} else {
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// Does not really matter
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return 0;
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}
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}
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}
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