/**
* Created on Dec 9, 2008
*
* Copyright 2008 Vuze, Inc. All rights reserved.
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License only.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.aelitis.azureus.util;
import java.util.*;
import org.gudy.azureus2.core3.util.AEMonitor;
import org.gudy.azureus2.core3.util.Constants;
import org.gudy.azureus2.core3.util.Debug;
import com.aelitis.azureus.core.cnetwork.*;
import com.aelitis.azureus.core.messenger.PlatformMessenger;
import com.aelitis.azureus.core.util.CopyOnWriteList;
/**
* @author TuxPaper
* @created Dec 9, 2008
*
*/
public class UrlFilter
{
private static UrlFilter instance = null;
//private String RPC_WHITELIST = "AZMSG%3B[0-9]+%3B.*";
private String default_site_host = (String) ConstantsVuze.getDefaultContentNetwork().getProperty(ContentNetwork.PROPERTY_SITE_HOST);
private String DEFAULT_RPC_WHITELIST = "https?://"
+ default_site_host.replaceAll("\\.", "\\\\.") + ":?[0-9]*/" + ".*";
private CopyOnWriteList<String> listUrlBlacklist = new CopyOnWriteList<String>();
private CopyOnWriteList<String> listUrlWhitelist = new CopyOnWriteList<String>();
private AEMonitor mon = new AEMonitor("UrlFilter");
public static UrlFilter getInstance() {
synchronized (UrlFilter.class) {
if (instance == null) {
instance = new UrlFilter();
}
return instance;
}
}
public UrlFilter() {
listUrlWhitelist.add(DEFAULT_RPC_WHITELIST);
listUrlWhitelist.add("https?://[^/]*\\.vuze\\.com:?[0-9]*/.*");
// for +1 button
listUrlWhitelist.add("https?://plusone\\.google\\.com/.*");
listUrlWhitelist.add("https?://clients[0-9]\\.google\\.com/.*");
ContentNetworkManager cmn = ContentNetworkManagerFactory.getSingleton();
ContentNetwork[] contentNetworks = cmn.getContentNetworks();
cmn.addListener(new ContentNetworkListener() {
public void networkRemoved(ContentNetwork network) {
}
public void networkChanged(ContentNetwork network) {
}
public void networkAdded(ContentNetwork network) {
addNetworkFilters(network);
}
public void networkAddFailed(long network_id, Throwable error) {
}
});
for (ContentNetwork cn : contentNetworks) {
addNetworkFilters(cn);
}
}
/**
* Ensure whitelist has important network urls
*
* @param network
*
* @since 4.0.0.5
*/
protected void addNetworkFilters(ContentNetwork network) {
if (network == null) {
return;
}
int[] whitelist_services = {
ContentNetwork.SERVICE_SITE,
ContentNetwork.SERVICE_AUTH_RPC,
ContentNetwork.SERVICE_RELAY_RPC,
ContentNetwork.SERVICE_RPC,
};
for ( int service: whitelist_services ){
if ( network.isServiceSupported( service )){
addUrlWhitelist( network.getServiceURL( service ) + ".*" );
}
}
}
public void addUrlWhitelist(String string) {
addUrlWhitelistSupport( string );
if ( string.contains( "://localhost" )){
addUrlWhitelistSupport( string.replace( "://localhost", "://127.0.0.1" ));
}
}
private void addUrlWhitelistSupport(String string) {
mon.enter();
try {
if (!listUrlWhitelist.contains(string)) {
PlatformMessenger.debug("add whitelist of " + string);
listUrlWhitelist.add(string);
} else {
PlatformMessenger.debug("whitelist already exists: " + string);
}
} finally {
mon.exit();
}
}
public void addUrlBlacklist(String string) {
mon.enter();
try {
if (!listUrlBlacklist.contains(string)) {
PlatformMessenger.debug("add blacklist of " + string);
listUrlBlacklist.add(string);
}
} finally {
mon.exit();
}
}
public String[] getUrlWhitelist() {
return listUrlWhitelist.toArray(new String[0]);
}
public boolean
isWhitelisted(
String url )
{
Iterator<String> it = listUrlWhitelist.iterator();
while( it.hasNext()){
if (url.matches(it.next())) {
return true;
}
}
return( false );
}
public boolean urlCanRPC(String url) {
return urlCanRPC(url, false );//Constants.isCVSVersion());
}
public boolean urlCanRPC(String url,boolean showDebug) {
if (url == null) {
Debug.out("URL null and should be blocked");
return false;
}
if (Constants.isCVSVersion() && url.startsWith("file://")) {
return true;
}
if ( isWhitelisted( url )){
return( true );
}
if(showDebug) {
Debug.out("urlCanRPC: URL '" + url + "' " + " does not match one of the "
+ listUrlWhitelist.size() + " whitelist entries");
}
return false;
}
public boolean urlIsBlocked(String url) {
if (url == null) {
Debug.out("URL null and should be blocked");
return true;
}
for (Iterator<String> iter = listUrlBlacklist.iterator(); iter.hasNext();) {
String blackListed = iter.next();
if (url.matches(blackListed)) {
Debug.out("URL '" + url + "' " + " is blocked by " + blackListed);
return true;
}
}
return false;
}
}