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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
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* KIND, either express or implied. See the License for the
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* under the License.
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*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
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*/
package org.apache.http.impl.cookie;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.FormattedHeader;
import org.apache.http.Header;
import org.apache.http.HeaderElement;
import org.apache.http.annotation.NotThreadSafe;
import org.apache.http.client.utils.DateUtils;
import org.apache.http.cookie.ClientCookie;
import org.apache.http.cookie.Cookie;
import org.apache.http.cookie.CookieOrigin;
import org.apache.http.cookie.MalformedCookieException;
import org.apache.http.cookie.SM;
import org.apache.http.message.BasicHeaderElement;
import org.apache.http.message.BasicHeaderValueFormatterHC4;
import org.apache.http.message.BufferedHeader;
import org.apache.http.message.ParserCursor;
import org.apache.http.util.Args;
import org.apache.http.util.CharArrayBuffer;
/**
* Cookie specification that strives to closely mimic (mis)behavior of
* common web browser applications such as Microsoft Internet Explorer
* and Mozilla FireFox.
*
*
* @since 4.0
*/
@NotThreadSafe // superclass is @NotThreadSafe
public class BrowserCompatSpecHC4 extends CookieSpecBaseHC4 {
private static final String[] DEFAULT_DATE_PATTERNS = new String[] {
DateUtils.PATTERN_RFC1123,
DateUtils.PATTERN_RFC1036,
DateUtils.PATTERN_ASCTIME,
"EEE, dd-MMM-yyyy HH:mm:ss z",
"EEE, dd-MMM-yyyy HH-mm-ss z",
"EEE, dd MMM yy HH:mm:ss z",
"EEE dd-MMM-yyyy HH:mm:ss z",
"EEE dd MMM yyyy HH:mm:ss z",
"EEE dd-MMM-yyyy HH-mm-ss z",
"EEE dd-MMM-yy HH:mm:ss z",
"EEE dd MMM yy HH:mm:ss z",
"EEE,dd-MMM-yy HH:mm:ss z",
"EEE,dd-MMM-yyyy HH:mm:ss z",
"EEE, dd-MM-yyyy HH:mm:ss z",
};
private final String[] datepatterns;
/** Default constructor */
public BrowserCompatSpecHC4(final String[] datepatterns, final BrowserCompatSpecFactoryHC4.SecurityLevel securityLevel) {
super();
if (datepatterns != null) {
this.datepatterns = datepatterns.clone();
} else {
this.datepatterns = DEFAULT_DATE_PATTERNS;
}
switch (securityLevel) {
case SECURITYLEVEL_DEFAULT:
registerAttribHandler(ClientCookie.PATH_ATTR, new BasicPathHandlerHC4());
break;
case SECURITYLEVEL_IE_MEDIUM:
registerAttribHandler(ClientCookie.PATH_ATTR, new BasicPathHandlerHC4() {
@Override
public void validate(final Cookie cookie, final CookieOrigin origin) throws MalformedCookieException {
// No validation
}
}
);
break;
default:
throw new RuntimeException("Unknown security level");
}
registerAttribHandler(ClientCookie.DOMAIN_ATTR, new BasicDomainHandlerHC4());
registerAttribHandler(ClientCookie.MAX_AGE_ATTR, new BasicMaxAgeHandlerHC4());
registerAttribHandler(ClientCookie.SECURE_ATTR, new BasicSecureHandlerHC4());
registerAttribHandler(ClientCookie.COMMENT_ATTR, new BasicCommentHandlerHC4());
registerAttribHandler(ClientCookie.EXPIRES_ATTR, new BasicExpiresHandlerHC4(
this.datepatterns));
registerAttribHandler(ClientCookie.VERSION_ATTR, new BrowserCompatVersionAttributeHandler());
}
/** Default constructor */
public BrowserCompatSpecHC4(final String[] datepatterns) {
this(datepatterns, BrowserCompatSpecFactoryHC4.SecurityLevel.SECURITYLEVEL_DEFAULT);
}
/** Default constructor */
public BrowserCompatSpecHC4() {
this(null, BrowserCompatSpecFactoryHC4.SecurityLevel.SECURITYLEVEL_DEFAULT);
}
public List parse(final Header header, final CookieOrigin origin)
throws MalformedCookieException {
Args.notNull(header, "Header");
Args.notNull(origin, "Cookie origin");
final String headername = header.getName();
if (!headername.equalsIgnoreCase(SM.SET_COOKIE)) {
throw new MalformedCookieException("Unrecognized cookie header '"
+ header.toString() + "'");
}
HeaderElement[] helems = header.getElements();
boolean versioned = false;
boolean netscape = false;
for (final HeaderElement helem: helems) {
if (helem.getParameterByName("version") != null) {
versioned = true;
}
if (helem.getParameterByName("expires") != null) {
netscape = true;
}
}
if (netscape || !versioned) {
// Need to parse the header again, because Netscape style cookies do not correctly
// support multiple header elements (comma cannot be treated as an element separator)
final NetscapeDraftHeaderParserHC4 parser = NetscapeDraftHeaderParserHC4.DEFAULT;
final CharArrayBuffer buffer;
final ParserCursor cursor;
if (header instanceof FormattedHeader) {
buffer = ((FormattedHeader) header).getBuffer();
cursor = new ParserCursor(
((FormattedHeader) header).getValuePos(),
buffer.length());
} else {
final String s = header.getValue();
if (s == null) {
throw new MalformedCookieException("Header value is null");
}
buffer = new CharArrayBuffer(s.length());
buffer.append(s);
cursor = new ParserCursor(0, buffer.length());
}
helems = new HeaderElement[] { parser.parseHeader(buffer, cursor) };
}
return parse(helems, origin);
}
private static boolean isQuoteEnclosed(final String s) {
return s != null && s.startsWith("\"") && s.endsWith("\"");
}
public List formatCookies(final List cookies) {
Args.notEmpty(cookies, "List of cookies");
final CharArrayBuffer buffer = new CharArrayBuffer(20 * cookies.size());
buffer.append(SM.COOKIE);
buffer.append(": ");
for (int i = 0; i < cookies.size(); i++) {
final Cookie cookie = cookies.get(i);
if (i > 0) {
buffer.append("; ");
}
final String cookieName = cookie.getName();
final String cookieValue = cookie.getValue();
if (cookie.getVersion() > 0 && !isQuoteEnclosed(cookieValue)) {
BasicHeaderValueFormatterHC4.INSTANCE.formatHeaderElement(
buffer,
new BasicHeaderElement(cookieName, cookieValue),
false);
} else {
// Netscape style cookies do not support quoted values
buffer.append(cookieName);
buffer.append("=");
if (cookieValue != null) {
buffer.append(cookieValue);
}
}
}
final List headers = new ArrayList(1);
headers.add(new BufferedHeader(buffer));
return headers;
}
public int getVersion() {
return 0;
}
public Header getVersionHeader() {
return null;
}
@Override
public String toString() {
return "compatibility";
}
}