org.apache.http.impl.cookie.RFC6265CookieSpec Maven / Gradle / Ivy
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/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* 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,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* attribHandlerMap;
private final TokenParser tokenParser;
protected RFC6265CookieSpec(final CommonCookieAttributeHandler... handlers) {
super();
this.attribHandlers = handlers.clone();
this.attribHandlerMap = new ConcurrentHashMap(handlers.length);
for (final CommonCookieAttributeHandler handler: handlers) {
this.attribHandlerMap.put(handler.getAttributeName().toLowerCase(Locale.ROOT), handler);
}
this.tokenParser = TokenParser.INSTANCE;
}
static String getDefaultPath(final CookieOrigin origin) {
String defaultPath = origin.getPath();
int lastSlashIndex = defaultPath.lastIndexOf('/');
if (lastSlashIndex >= 0) {
if (lastSlashIndex == 0) {
//Do not remove the very first slash
lastSlashIndex = 1;
}
defaultPath = defaultPath.substring(0, lastSlashIndex);
}
return defaultPath;
}
static String getDefaultDomain(final CookieOrigin origin) {
return origin.getHost();
}
@Override
public final List parse(final Header header, final CookieOrigin origin) throws MalformedCookieException {
Args.notNull(header, "Header");
Args.notNull(origin, "Cookie origin");
if (!header.getName().equalsIgnoreCase(SM.SET_COOKIE)) {
throw new MalformedCookieException("Unrecognized cookie header: '" + header.toString() + "'");
}
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());
}
final String name = tokenParser.parseToken(buffer, cursor, TOKEN_DELIMS);
if (name.isEmpty()) {
return Collections.emptyList();
}
if (cursor.atEnd()) {
return Collections.emptyList();
}
final int valueDelim = buffer.charAt(cursor.getPos());
cursor.updatePos(cursor.getPos() + 1);
if (valueDelim != '=') {
throw new MalformedCookieException("Cookie value is invalid: '" + header.toString() + "'");
}
final String value = tokenParser.parseValue(buffer, cursor, VALUE_DELIMS);
if (!cursor.atEnd()) {
cursor.updatePos(cursor.getPos() + 1);
}
final BasicClientCookie cookie = new BasicClientCookie(name, value);
cookie.setPath(getDefaultPath(origin));
cookie.setDomain(getDefaultDomain(origin));
cookie.setCreationDate(new Date());
final Map attribMap = new LinkedHashMap();
while (!cursor.atEnd()) {
final String paramName = tokenParser.parseToken(buffer, cursor, TOKEN_DELIMS)
.toLowerCase(Locale.ROOT);
String paramValue = null;
if (!cursor.atEnd()) {
final int paramDelim = buffer.charAt(cursor.getPos());
cursor.updatePos(cursor.getPos() + 1);
if (paramDelim == EQUAL_CHAR) {
paramValue = tokenParser.parseToken(buffer, cursor, VALUE_DELIMS);
if (!cursor.atEnd()) {
cursor.updatePos(cursor.getPos() + 1);
}
}
}
cookie.setAttribute(paramName, paramValue);
attribMap.put(paramName, paramValue);
}
// Ignore 'Expires' if 'Max-Age' is present
if (attribMap.containsKey(ClientCookie.MAX_AGE_ATTR)) {
attribMap.remove(ClientCookie.EXPIRES_ATTR);
}
for (final Map.Entry entry: attribMap.entrySet()) {
final String paramName = entry.getKey();
final String paramValue = entry.getValue();
final CookieAttributeHandler handler = this.attribHandlerMap.get(paramName);
if (handler != null) {
handler.parse(cookie, paramValue);
}
}
return Collections.singletonList(cookie);
}
@Override
public final void validate(final Cookie cookie, final CookieOrigin origin)
throws MalformedCookieException {
Args.notNull(cookie, "Cookie");
Args.notNull(origin, "Cookie origin");
for (final CookieAttributeHandler handler: this.attribHandlers) {
handler.validate(cookie, origin);
}
}
@Override
public final boolean match(final Cookie cookie, final CookieOrigin origin) {
Args.notNull(cookie, "Cookie");
Args.notNull(origin, "Cookie origin");
for (final CookieAttributeHandler handler: this.attribHandlers) {
if (!handler.match(cookie, origin)) {
return false;
}
}
return true;
}
@Override
public List formatCookies(final List cookies) {
Args.notEmpty(cookies, "List of cookies");
final List sortedCookies;
if (cookies.size() > 1) {
// Create a mutable copy and sort the copy.
sortedCookies = new ArrayList(cookies);
Collections.sort(sortedCookies, CookiePriorityComparator.INSTANCE);
} else {
sortedCookies = cookies;
}
final CharArrayBuffer buffer = new CharArrayBuffer(20 * sortedCookies.size());
buffer.append(SM.COOKIE);
buffer.append(": ");
for (int n = 0; n < sortedCookies.size(); n++) {
final Cookie cookie = sortedCookies.get(n);
if (n > 0) {
buffer.append(PARAM_DELIMITER);
buffer.append(' ');
}
buffer.append(cookie.getName());
final String s = cookie.getValue();
if (s != null) {
buffer.append(EQUAL_CHAR);
if (containsSpecialChar(s)) {
buffer.append(DQUOTE_CHAR);
for (int i = 0; i < s.length(); i++) {
final char ch = s.charAt(i);
if (ch == DQUOTE_CHAR || ch == ESCAPE_CHAR) {
buffer.append(ESCAPE_CHAR);
}
buffer.append(ch);
}
buffer.append(DQUOTE_CHAR);
} else {
buffer.append(s);
}
}
}
final List headers = new ArrayList(1);
headers.add(new BufferedHeader(buffer));
return headers;
}
boolean containsSpecialChar(final CharSequence s) {
return containsChars(s, SPECIAL_CHARS);
}
boolean containsChars(final CharSequence s, final BitSet chars) {
for (int i = 0; i < s.length(); i++) {
final char ch = s.charAt(i);
if (chars.get(ch)) {
return true;
}
}
return false;
}
@Override
public final int getVersion() {
return 0;
}
@Override
public final Header getVersionHeader() {
return null;
}
}