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Proxy Vole is a Java library to auto detect the platform network proxy settings.
package com.github.markusbernhardt.proxy.search.desktop.kde;
import java.io.IOException;
import java.net.ProxySelector;
import java.util.Properties;
import com.github.markusbernhardt.proxy.ProxySearchStrategy;
import com.github.markusbernhardt.proxy.search.env.EnvProxySearchStrategy;
import com.github.markusbernhardt.proxy.search.wpad.WpadProxySearchStrategy;
import com.github.markusbernhardt.proxy.selector.direct.NoProxySelector;
import com.github.markusbernhardt.proxy.selector.fixed.FixedProxySelector;
import com.github.markusbernhardt.proxy.selector.misc.ProtocolDispatchSelector;
import com.github.markusbernhardt.proxy.selector.whitelist.ProxyBypassListSelector;
import com.github.markusbernhardt.proxy.selector.whitelist.UseProxyWhiteListSelector;
import com.github.markusbernhardt.proxy.util.Logger;
import com.github.markusbernhardt.proxy.util.Logger.LogLevel;
import com.github.markusbernhardt.proxy.util.ProxyException;
import com.github.markusbernhardt.proxy.util.ProxyUtil;
/*****************************************************************************
* Loads the KDE4 proxy settings from the KDE kioslaverc file. This will
* load properties from the file
*
* .kde/share/config/kioslaverc
*
* starting from the current users home directory.
*
* The following settings are extracted from the section "[Proxy Settings]":
*
*
* - AuthMode -> 0 = no auth., 1 = use login.
* - ProxyType -> 0 = direct 1 = use fixed settings, 2 = use PAC, 3
* = automatic (WPAD) , 4 = Use environment variables?
* - Proxy Config Script -> URL to PAC file
* - ftpProxy -> Fixed ftp proxy address e.g.
* http://www.ftp-proxy.com:8080
* - httpProxy -> Fixed http proxy e.g
* http://www.http-proxy.com:8080
* - httpsProxy -> Fixed https proxy e.g
* http://www.https-proxy.com:8080
* - NoProxyFor -> Proxy white list
* - ReversedException -> false = use NoProxyFor, true = revert
* meaning of the NoProxyFor list
*
*
* @author Markus Bernhardt, Copyright 2016
* @author Bernd Rosstauscher, Copyright 2009
****************************************************************************/
public class KdeProxySearchStrategy implements ProxySearchStrategy {
private KdeSettingsParser settingsParser;
/*************************************************************************
* ProxySelector using the given parser.
*
* @see java.net.ProxySelector#ProxySelector()
************************************************************************/
public KdeProxySearchStrategy() {
this(new KdeSettingsParser());
}
/*************************************************************************
* ProxySelector
*
* @param settingsParser
* the KdeSettingsParser instance to use.
* @see java.net.ProxySelector#ProxySelector()
************************************************************************/
public KdeProxySearchStrategy(KdeSettingsParser settingsParser) {
super();
this.settingsParser = settingsParser;
}
/*************************************************************************
* Loads the proxy settings and initializes a proxy selector for the firefox
* proxy settings.
*
* @return a configured ProxySelector, null if none is found.
* @throws ProxyException
* on file reading error.
************************************************************************/
@Override
public ProxySelector getProxySelector() throws ProxyException {
Logger.log(getClass(), LogLevel.TRACE, "Detecting Kde proxy settings");
Properties settings = readSettings();
if (settings == null) {
return null;
}
ProxySelector result = null;
int type = Integer.parseInt(settings.getProperty("ProxyType", "-1"));
switch (type) {
case 0: // Use no proxy
Logger.log(getClass(), LogLevel.TRACE, "Kde uses no proxy");
result = NoProxySelector.getInstance();
break;
case 1: // Fixed settings
Logger.log(getClass(), LogLevel.TRACE, "Kde uses manual proxy settings");
result = setupFixedProxySelector(settings);
break;
case 2: // PAC Script
String pacScriptUrl = settings.getProperty("Proxy Config Script", "");
Logger.log(getClass(), LogLevel.TRACE, "Kde uses autodetect script {0}", pacScriptUrl);
result = ProxyUtil.buildPacSelectorForUrl(pacScriptUrl);
break;
case 3: // WPAD
Logger.log(getClass(), LogLevel.TRACE, "Kde uses WPAD to detect the proxy");
result = new WpadProxySearchStrategy().getProxySelector();
break;
case 4: // Use environment variables
Logger.log(getClass(), LogLevel.TRACE, "Kde reads proxy from environment");
result = setupEnvVarSelector(settings);
break;
default:
break;
}
return result;
}
/*************************************************************************
* Gets the printable name of the search strategy.
*
* @return the printable name of the search strategy
************************************************************************/
@Override
public String getName() {
return "kde";
}
/*************************************************************************
* Reads the settings and stores them in a properties map.
*
* @return the parsed settings.
* @throws ProxyException
************************************************************************/
private Properties readSettings() throws ProxyException {
try {
return this.settingsParser.parseSettings();
} catch (IOException e) {
Logger.log(getClass(), LogLevel.ERROR, "Can't parse settings.", e);
throw new ProxyException(e);
}
}
/*************************************************************************
* Builds an environment variable selector.
*
* @param settings
* the settings to read from.
* @return the ProxySelector using environment variables.
************************************************************************/
private ProxySelector setupEnvVarSelector(Properties settings) {
ProxySelector result;
result = new EnvProxySearchStrategy(settings.getProperty("httpProxy"), settings.getProperty("httpsProxy"),
settings.getProperty("ftpProxy"), settings.getProperty("NoProxyFor")).getProxySelector();
return result;
}
/*************************************************************************
* Parse the fixed proxy settings and build an ProxySelector for this a
* chained configuration.
*
* @param settings
* the proxy settings to evaluate.
************************************************************************/
private ProxySelector setupFixedProxySelector(Properties settings) {
String proxyVar = settings.getProperty("httpProxy", null);
FixedProxySelector httpPS = ProxyUtil.parseProxySettings(proxyVar);
if (httpPS == null) {
Logger.log(getClass(), LogLevel.TRACE, "Kde http proxy is {0}", proxyVar);
return null;
}
ProtocolDispatchSelector ps = new ProtocolDispatchSelector();
ps.setSelector("http", httpPS);
proxyVar = settings.getProperty("httpsProxy", null);
FixedProxySelector httpsPS = ProxyUtil.parseProxySettings(proxyVar);
if (httpsPS != null) {
Logger.log(getClass(), LogLevel.TRACE, "Kde https proxy is {0}", proxyVar);
ps.setSelector("https", httpsPS);
}
proxyVar = settings.getProperty("ftpProxy", null);
FixedProxySelector ftpPS = ProxyUtil.parseProxySettings(proxyVar);
if (ftpPS != null) {
Logger.log(getClass(), LogLevel.TRACE, "Kde ftp proxy is {0}", proxyVar);
ps.setSelector("ftp", ftpPS);
}
// Wrap in white list filter.
String noProxyList = settings.getProperty("NoProxyFor", null);
if (noProxyList != null && noProxyList.trim().length() > 0) {
boolean reverse = "true".equals(settings.getProperty("ReversedException", "false"));
if (reverse) {
Logger.log(getClass(), LogLevel.TRACE, "Kde proxy blacklist is {0}", noProxyList);
return new UseProxyWhiteListSelector(noProxyList, ps);
} else {
Logger.log(getClass(), LogLevel.TRACE, "Kde proxy whitelist is {0}", noProxyList);
return new ProxyBypassListSelector(noProxyList, ps);
}
}
return ps;
}
}