michael@0: /*
michael@0:  * ====================================================================
michael@0:  * Licensed to the Apache Software Foundation (ASF) under one
michael@0:  * or more contributor license agreements.  See the NOTICE file
michael@0:  * distributed with this work for additional information
michael@0:  * regarding copyright ownership.  The ASF licenses this file
michael@0:  * to you under the Apache License, Version 2.0 (the
michael@0:  * "License"); you may not use this file except in compliance
michael@0:  * with the License.  You may obtain a copy of the License at
michael@0:  *
michael@0:  *   http://www.apache.org/licenses/LICENSE-2.0
michael@0:  *
michael@0:  * Unless required by applicable law or agreed to in writing,
michael@0:  * software distributed under the License is distributed on an
michael@0:  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
michael@0:  * KIND, either express or implied.  See the License for the
michael@0:  * specific language governing permissions and limitations
michael@0:  * under the License.
michael@0:  * ====================================================================
michael@0:  *
michael@0:  * This software consists of voluntary contributions made by many
michael@0:  * individuals on behalf of the Apache Software Foundation.  For more
michael@0:  * information on the Apache Software Foundation, please see
michael@0:  * <http://www.apache.org/>.
michael@0:  *
michael@0:  */
michael@0: package ch.boye.httpclientandroidlib.impl.cookie;
michael@0: 
michael@0: import ch.boye.httpclientandroidlib.annotation.Immutable;
michael@0: 
michael@0: import ch.boye.httpclientandroidlib.cookie.Cookie;
michael@0: import ch.boye.httpclientandroidlib.cookie.CookieAttributeHandler;
michael@0: import ch.boye.httpclientandroidlib.cookie.CookieOrigin;
michael@0: import ch.boye.httpclientandroidlib.cookie.CookieRestrictionViolationException;
michael@0: import ch.boye.httpclientandroidlib.cookie.MalformedCookieException;
michael@0: import ch.boye.httpclientandroidlib.cookie.SetCookie;
michael@0: 
michael@0: /**
michael@0:  *
michael@0:  * @since 4.0
michael@0:  */
michael@0: @Immutable
michael@0: public class BasicPathHandler implements CookieAttributeHandler {
michael@0: 
michael@0:     public BasicPathHandler() {
michael@0:         super();
michael@0:     }
michael@0: 
michael@0:     public void parse(final SetCookie cookie, String value)
michael@0:             throws MalformedCookieException {
michael@0:         if (cookie == null) {
michael@0:             throw new IllegalArgumentException("Cookie may not be null");
michael@0:         }
michael@0:         if (value == null || value.trim().length() == 0) {
michael@0:             value = "/";
michael@0:         }
michael@0:         cookie.setPath(value);
michael@0:     }
michael@0: 
michael@0:     public void validate(final Cookie cookie, final CookieOrigin origin)
michael@0:             throws MalformedCookieException {
michael@0:         if (!match(cookie, origin)) {
michael@0:             throw new CookieRestrictionViolationException(
michael@0:                 "Illegal path attribute \"" + cookie.getPath()
michael@0:                 + "\". Path of origin: \"" + origin.getPath() + "\"");
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     public boolean match(final Cookie cookie, final CookieOrigin origin) {
michael@0:         if (cookie == null) {
michael@0:             throw new IllegalArgumentException("Cookie may not be null");
michael@0:         }
michael@0:         if (origin == null) {
michael@0:             throw new IllegalArgumentException("Cookie origin may not be null");
michael@0:         }
michael@0:         String targetpath = origin.getPath();
michael@0:         String topmostPath = cookie.getPath();
michael@0:         if (topmostPath == null) {
michael@0:             topmostPath = "/";
michael@0:         }
michael@0:         if (topmostPath.length() > 1 && topmostPath.endsWith("/")) {
michael@0:             topmostPath = topmostPath.substring(0, topmostPath.length() - 1);
michael@0:         }
michael@0:         boolean match = targetpath.startsWith (topmostPath);
michael@0:         // if there is a match and these values are not exactly the same we have
michael@0:         // to make sure we're not matcing "/foobar" and "/foo"
michael@0:         if (match && targetpath.length() != topmostPath.length()) {
michael@0:             if (!topmostPath.endsWith("/")) {
michael@0:                 match = (targetpath.charAt(topmostPath.length()) == '/');
michael@0:             }
michael@0:         }
michael@0:         return match;
michael@0:     }
michael@0: 
michael@0: }