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/*
* Copyright (c) 2006, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.xml.ws.transport.http.client;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;
import java.util.Map;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Collections;
import java.util.Iterator;
import java.util.Map.Entry;
import java.util.concurrent.locks.ReentrantLock;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* A simple in-memory java.net.CookieStore implementation
*
* @version %I%, %E%
* @author Edward Wang
* @since 1.6
*/
class InMemoryCookieStore implements CookieStore {
private static final Logger LOGGER = Logger.getLogger(HttpTransportPipe.class.getName());
// the in-memory representation of cookies
private List cookieJar = null;
// the cookies are indexed by its domain and associated uri (if present)
// CAUTION: when a cookie removed from main data structure (i.e. cookieJar),
// it won't be cleared in domainIndex & uriIndex. Double-check the
// presence of cookie when retrieve one form index store.
private Map> domainIndex = null;
private Map> uriIndex = null;
// use ReentrantLock instead of syncronized for scalability
private ReentrantLock lock = null;
/**
* The default ctor
*/
InMemoryCookieStore() {
cookieJar = new ArrayList();
domainIndex = new HashMap>();
uriIndex = new HashMap>();
lock = new ReentrantLock(false);
}
/**
* Add one cookie into cookie store.
*/
@Override
public void add(URI uri, HttpCookie cookie) {
// pre-condition : argument can't be null
if (cookie == null) {
throw new NullPointerException("cookie is null");
}
lock.lock();
try {
// remove the ole cookie if there has had one
cookieJar.remove(cookie);
// add new cookie if it has a non-zero max-age
if (cookie.getMaxAge() != 0) {
cookieJar.add(cookie);
// and add it to domain index
if (cookie.getDomain() != null) {
addIndex(domainIndex, cookie.getDomain(), cookie);
}
// add it to uri index, too
addIndex(uriIndex, getEffectiveURI(uri), cookie);
}
} finally {
lock.unlock();
}
}
/**
* Get all cookies, which:
* 1) given uri domain-matches with, or, associated with
* given uri when added to the cookie store.
* 3) not expired.
* See RFC 2965 sec. 3.3.4 for more detail.
*/
@Override
public List get(URI uri) {
// argument can't be null
if (uri == null) {
throw new NullPointerException("uri is null");
}
List cookies = new ArrayList();
boolean secureLink = "https".equalsIgnoreCase(uri.getScheme());
lock.lock();
try {
// check domainIndex first
getInternal1(cookies, domainIndex, uri.getHost(), secureLink);
// check uriIndex then
getInternal2(cookies, uriIndex, getEffectiveURI(uri), secureLink);
} finally {
lock.unlock();
}
return cookies;
}
/**
* Get all cookies in cookie store, except those have expired
*/
@Override
public List getCookies() {
List rt;
lock.lock();
try {
Iterator it = cookieJar.iterator();
while (it.hasNext()) {
if (it.next().hasExpired()) {
it.remove();
}
}
rt = Collections.unmodifiableList(cookieJar);
} catch (Exception e) {
rt = Collections.unmodifiableList(cookieJar);
LOGGER.log(Level.INFO, null, e);
} finally {
lock.unlock();
}
return rt;
}
/**
* Get all URIs, which are associated with at least one cookie
* of this cookie store.
*/
@Override
public List getURIs() {
List uris;
lock.lock();
try {
Iterator it = uriIndex.keySet().iterator();
while (it.hasNext()) {
URI uri = it.next();
List cookies = uriIndex.get(uri);
if (cookies == null || cookies.size() == 0) {
// no cookies list or an empty list associated with
// this uri entry, delete it
it.remove();
}
}
uris = new ArrayList(uriIndex.keySet());
} catch (Exception e) {
uris = new ArrayList(uriIndex.keySet());
LOGGER.log(Level.INFO, null, e);
} finally {
lock.unlock();
}
return uris;
}
/**
* Remove a cookie from store
*/
@Override
public boolean remove(URI uri, HttpCookie ck) {
// argument can't be null
if (ck == null) {
throw new NullPointerException("cookie is null");
}
boolean modified = false;
lock.lock();
try {
modified = cookieJar.remove(ck);
} finally {
lock.unlock();
}
return modified;
}
/**
* Remove all cookies in this cookie store.
*/
@Override
public boolean removeAll() {
lock.lock();
try {
cookieJar.clear();
domainIndex.clear();
uriIndex.clear();
} finally {
lock.unlock();
}
return true;
}
/* ---------------- Private operations -------------- */
/*
* This is almost the same as HttpCookie.domainMatches except for
* one difference: It won't reject cookies when the 'H' part of the
* domain contains a dot ('.').
* I.E.: RFC 2965 section 3.3.2 says that if host is x.y.domain.com
* and the cookie domain is .domain.com, then it should be rejected.
* However that's not how the real world works. Browsers don't reject and
* some sites, like yahoo.com do actually expect these cookies to be
* passed along.
* And should be used for 'old' style cookies (aka Netscape type of cookies)
*/
private boolean netscapeDomainMatches(String domain, String host)
{
if (domain == null || host == null) {
return false;
}
// if there's no embedded dot in domain and domain is not .local
boolean isLocalDomain = ".local".equalsIgnoreCase(domain);
int embeddedDotInDomain = domain.indexOf('.');
if (embeddedDotInDomain == 0) {
embeddedDotInDomain = domain.indexOf('.', 1);
}
if (!isLocalDomain && (embeddedDotInDomain == -1 || embeddedDotInDomain == domain.length() - 1)) {
return false;
}
// if the host name contains no dot and the domain name is .local
int firstDotInHost = host.indexOf('.');
if (firstDotInHost == -1 && isLocalDomain) {
return true;
}
int domainLength = domain.length();
int lengthDiff = host.length() - domainLength;
if (lengthDiff == 0) {
// if the host name and the domain name are just string-compare euqal
return host.equalsIgnoreCase(domain);
} else if (lengthDiff > 0) {
// need to check H & D component
// String H = host.substring(0, lengthDiff);
String D = host.substring(lengthDiff);
return (D.equalsIgnoreCase(domain));
} else if (lengthDiff == -1) {
// if domain is actually .host
return (domain.charAt(0) == '.' &&
host.equalsIgnoreCase(domain.substring(1)));
}
return false;
}
private void getInternal1(List cookies, Map> cookieIndex,
String host, boolean secureLink) {
// Use a separate list to handle cookies that need to be removed so
// that there is no conflict with iterators.
ArrayList toRemove = new ArrayList();
for (Map.Entry> entry : cookieIndex.entrySet()) {
String domain = entry.getKey();
List lst = entry.getValue();
for (HttpCookie c : lst) {
if ((c.getVersion() == 0 && netscapeDomainMatches(domain, host)) ||
(c.getVersion() == 1 && HttpCookie.domainMatches(domain, host))) {
if ((cookieJar.indexOf(c) != -1)) {
// the cookie still in main cookie store
if (!c.hasExpired()) {
// don't add twice and make sure it's the proper
// security level
if ((secureLink || !c.getSecure()) &&
!cookies.contains(c)) {
cookies.add(c);
}
} else {
toRemove.add(c);
}
} else {
// the cookie has been removed from main store,
// so also remove it from domain indexed store
toRemove.add(c);
}
}
}
// Clear up the cookies that need to be removed
for (HttpCookie c : toRemove) {
lst.remove(c);
cookieJar.remove(c);
}
toRemove.clear();
}
}
// @param cookies [OUT] contains the found cookies
// @param cookieIndex the index
// @param comparator the prediction to decide whether or not
// a cookie in index should be returned
private void getInternal2(List cookies,
Map> cookieIndex,
Comparable comparator, boolean secureLink)
{
for (Entry> entry : cookieIndex.entrySet()) {
T index = entry.getKey();
if (comparator.compareTo(index) == 0) {
List indexedCookies = entry.getValue();
// check the list of cookies associated with this domain
if (indexedCookies != null) {
Iterator it = indexedCookies.iterator();
while (it.hasNext()) {
HttpCookie ck = it.next();
if (cookieJar.indexOf(ck) != -1) {
// the cookie still in main cookie store
if (!ck.hasExpired()) {
// don't add twice
if ((secureLink || !ck.getSecure()) &&
!cookies.contains(ck)) {
cookies.add(ck);
}
} else {
it.remove();
cookieJar.remove(ck);
}
} else {
// the cookie has beed removed from main store,
// so also remove it from domain indexed store
it.remove();
}
}
} // end of indexedCookies != null
} // end of comparator.compareTo(index) == 0
} // end of cookieIndex iteration
}
// add 'cookie' indexed by 'index' into 'indexStore'
private void addIndex(Map> indexStore,
T index,
HttpCookie cookie)
{
if (index != null) {
List cookies = indexStore.get(index);
if (cookies != null) {
// there may already have the same cookie, so remove it first
cookies.remove(cookie);
cookies.add(cookie);
} else {
cookies = new ArrayList();
cookies.add(cookie);
indexStore.put(index, cookies);
}
}
}
//
// for cookie purpose, the effective uri should only be http://host
// the path will be taken into account when path-match algorithm applied
//
private URI getEffectiveURI(URI uri) {
URI effectiveURI;
try {
effectiveURI = new URI("http",
uri.getHost(),
null, // path component
null, // query component
null // fragment component
);
} catch (URISyntaxException ignored) {
effectiveURI = uri;
}
return effectiveURI;
}
}
