mirror of
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220 lines
8.6 KiB
Java
220 lines
8.6 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.impl.cookie;
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import java.util.ArrayList;
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import java.util.List;
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import ch.boye.httpclientandroidlib.FormattedHeader;
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import ch.boye.httpclientandroidlib.Header;
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import ch.boye.httpclientandroidlib.HeaderElement;
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import ch.boye.httpclientandroidlib.annotation.NotThreadSafe;
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import ch.boye.httpclientandroidlib.client.utils.DateUtils;
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import ch.boye.httpclientandroidlib.cookie.ClientCookie;
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import ch.boye.httpclientandroidlib.cookie.Cookie;
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import ch.boye.httpclientandroidlib.cookie.CookieOrigin;
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import ch.boye.httpclientandroidlib.cookie.MalformedCookieException;
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import ch.boye.httpclientandroidlib.cookie.SM;
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import ch.boye.httpclientandroidlib.message.BasicHeaderElement;
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import ch.boye.httpclientandroidlib.message.BasicHeaderValueFormatter;
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import ch.boye.httpclientandroidlib.message.BufferedHeader;
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import ch.boye.httpclientandroidlib.message.ParserCursor;
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import ch.boye.httpclientandroidlib.util.Args;
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import ch.boye.httpclientandroidlib.util.CharArrayBuffer;
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/**
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* Cookie specification that strives to closely mimic (mis)behavior of
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* common web browser applications such as Microsoft Internet Explorer
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* and Mozilla FireFox.
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*
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*
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* @since 4.0
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*/
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@NotThreadSafe // superclass is @NotThreadSafe
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public class BrowserCompatSpec extends CookieSpecBase {
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private static final String[] DEFAULT_DATE_PATTERNS = new String[] {
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DateUtils.PATTERN_RFC1123,
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DateUtils.PATTERN_RFC1036,
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DateUtils.PATTERN_ASCTIME,
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"EEE, dd-MMM-yyyy HH:mm:ss z",
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"EEE, dd-MMM-yyyy HH-mm-ss z",
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"EEE, dd MMM yy HH:mm:ss z",
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"EEE dd-MMM-yyyy HH:mm:ss z",
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"EEE dd MMM yyyy HH:mm:ss z",
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"EEE dd-MMM-yyyy HH-mm-ss z",
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"EEE dd-MMM-yy HH:mm:ss z",
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"EEE dd MMM yy HH:mm:ss z",
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"EEE,dd-MMM-yy HH:mm:ss z",
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"EEE,dd-MMM-yyyy HH:mm:ss z",
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"EEE, dd-MM-yyyy HH:mm:ss z",
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};
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private final String[] datepatterns;
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/** Default constructor */
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public BrowserCompatSpec(final String[] datepatterns, final BrowserCompatSpecFactory.SecurityLevel securityLevel) {
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super();
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if (datepatterns != null) {
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this.datepatterns = datepatterns.clone();
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} else {
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this.datepatterns = DEFAULT_DATE_PATTERNS;
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}
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switch (securityLevel) {
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case SECURITYLEVEL_DEFAULT:
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registerAttribHandler(ClientCookie.PATH_ATTR, new BasicPathHandler());
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break;
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case SECURITYLEVEL_IE_MEDIUM:
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registerAttribHandler(ClientCookie.PATH_ATTR, new BasicPathHandler() {
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@Override
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public void validate(final Cookie cookie, final CookieOrigin origin) throws MalformedCookieException {
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// No validation
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}
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}
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);
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break;
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default:
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throw new RuntimeException("Unknown security level");
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}
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registerAttribHandler(ClientCookie.DOMAIN_ATTR, new BasicDomainHandler());
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registerAttribHandler(ClientCookie.MAX_AGE_ATTR, new BasicMaxAgeHandler());
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registerAttribHandler(ClientCookie.SECURE_ATTR, new BasicSecureHandler());
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registerAttribHandler(ClientCookie.COMMENT_ATTR, new BasicCommentHandler());
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registerAttribHandler(ClientCookie.EXPIRES_ATTR, new BasicExpiresHandler(
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this.datepatterns));
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registerAttribHandler(ClientCookie.VERSION_ATTR, new BrowserCompatVersionAttributeHandler());
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}
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/** Default constructor */
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public BrowserCompatSpec(final String[] datepatterns) {
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this(datepatterns, BrowserCompatSpecFactory.SecurityLevel.SECURITYLEVEL_DEFAULT);
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}
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/** Default constructor */
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public BrowserCompatSpec() {
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this(null, BrowserCompatSpecFactory.SecurityLevel.SECURITYLEVEL_DEFAULT);
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}
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public List<Cookie> parse(final Header header, final CookieOrigin origin)
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throws MalformedCookieException {
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Args.notNull(header, "Header");
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Args.notNull(origin, "Cookie origin");
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final String headername = header.getName();
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if (!headername.equalsIgnoreCase(SM.SET_COOKIE)) {
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throw new MalformedCookieException("Unrecognized cookie header '"
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+ header.toString() + "'");
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}
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HeaderElement[] helems = header.getElements();
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boolean versioned = false;
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boolean netscape = false;
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for (final HeaderElement helem: helems) {
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if (helem.getParameterByName("version") != null) {
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versioned = true;
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}
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if (helem.getParameterByName("expires") != null) {
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netscape = true;
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}
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}
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if (netscape || !versioned) {
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// Need to parse the header again, because Netscape style cookies do not correctly
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// support multiple header elements (comma cannot be treated as an element separator)
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final NetscapeDraftHeaderParser parser = NetscapeDraftHeaderParser.DEFAULT;
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final CharArrayBuffer buffer;
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final ParserCursor cursor;
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if (header instanceof FormattedHeader) {
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buffer = ((FormattedHeader) header).getBuffer();
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cursor = new ParserCursor(
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((FormattedHeader) header).getValuePos(),
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buffer.length());
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} else {
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final String s = header.getValue();
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if (s == null) {
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throw new MalformedCookieException("Header value is null");
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}
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buffer = new CharArrayBuffer(s.length());
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buffer.append(s);
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cursor = new ParserCursor(0, buffer.length());
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}
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helems = new HeaderElement[] { parser.parseHeader(buffer, cursor) };
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}
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return parse(helems, origin);
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}
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private static boolean isQuoteEnclosed(final String s) {
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return s != null && s.startsWith("\"") && s.endsWith("\"");
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}
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public List<Header> formatCookies(final List<Cookie> cookies) {
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Args.notEmpty(cookies, "List of cookies");
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final CharArrayBuffer buffer = new CharArrayBuffer(20 * cookies.size());
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buffer.append(SM.COOKIE);
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buffer.append(": ");
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for (int i = 0; i < cookies.size(); i++) {
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final Cookie cookie = cookies.get(i);
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if (i > 0) {
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buffer.append("; ");
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}
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final String cookieName = cookie.getName();
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final String cookieValue = cookie.getValue();
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if (cookie.getVersion() > 0 && !isQuoteEnclosed(cookieValue)) {
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BasicHeaderValueFormatter.INSTANCE.formatHeaderElement(
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buffer,
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new BasicHeaderElement(cookieName, cookieValue),
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false);
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} else {
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// Netscape style cookies do not support quoted values
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buffer.append(cookieName);
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buffer.append("=");
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if (cookieValue != null) {
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buffer.append(cookieValue);
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}
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}
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}
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final List<Header> headers = new ArrayList<Header>(1);
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headers.add(new BufferedHeader(buffer));
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return headers;
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}
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public int getVersion() {
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return 0;
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}
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public Header getVersionHeader() {
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return null;
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}
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@Override
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public String toString() {
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return "compatibility";
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}
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}
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