com.github.markusbernhardt.proxy.selector.whitelist.DefaultWhiteListParser Maven / Gradle / Ivy
package com.github.markusbernhardt.proxy.selector.whitelist;
import java.util.ArrayList;
import java.util.List;
import com.github.markusbernhardt.proxy.search.browser.ie.IELocalByPassFilter;
import com.github.markusbernhardt.proxy.selector.whitelist.HostnameFilter.Mode;
import com.github.markusbernhardt.proxy.util.UriFilter;
/*****************************************************************************
* Default implementation for an white list parser. This will support the most
* common forms of filters found in white lists. The white list is a comma (or
* space) separated list of domain names or IP addresses. The following section
* shows some examples.
*
* .mynet.com - Filters all host names ending with .mynet.com *.mynet.com -
* Filters all host names ending with .mynet.com www.mynet.* - Filters all host
* names starting with www.mynet. 123.12.32.1 - Filters the IP 123.12.32.1
* 123.12.32.1/255 - Filters the IP range http://www.mynet.com - Filters only
* HTTP protocol not FTP and no HTTPS
*
* Example of a list:
*
* .mynet.com, *.my-other-net.org, 123.55.23.222, 123.55.23.0/24
*
* Some info about this topic can be found here:
* http://kb.mozillazine.org/No_proxy_for
* http://technet.microsoft.com/en-us/library/dd361953.aspx
*
* Note that this implementation does not cover all variations of all browsers
* but should cover the most used formats.
*
* @author Markus Bernhardt, Copyright 2016
* @author Bernd Rosstauscher, Copyright 2009
****************************************************************************/
public class DefaultWhiteListParser implements WhiteListParser {
/*************************************************************************
* parseWhiteList
*
* @see com.github.markusbernhardt.proxy.selector.whitelist.WhiteListParser#parseWhiteList(java.lang.String)
************************************************************************/
public List parseWhiteList(String whiteList) {
List result = new ArrayList();
String[] token = whiteList.split("[, ]+");
for (int i = 0; i < token.length; i++) {
String tkn = token[i].trim();
if (isIP4SubnetFilter(tkn) || isIP6SubnetFilter(tkn)) {
result.add(new IpRangeFilter(tkn));
continue;
} else if (tkn.endsWith("*")) {
tkn = tkn.substring(0, tkn.length() - 1);
result.add(new HostnameFilter(Mode.BEGINS_WITH, tkn));
continue;
} else if (tkn.trim().startsWith("*")) {
tkn = tkn.substring(1);
result.add(new HostnameFilter(Mode.ENDS_WITH, tkn));
} else if (tkn.trim().equals("")) {
result.add(new IELocalByPassFilter());
} else {
result.add(new HostnameFilter(Mode.ENDS_WITH, tkn));
}
}
return result;
}
/*************************************************************************
* Checks if the given token is an IP6 subnet filter.
*
* @param token
* to analyze.
* @return true if it is a valid IP6 subnet filter else false.
************************************************************************/
private boolean isIP6SubnetFilter(String token) {
return IPWithSubnetChecker.isValidIP6Range(token);
}
/*************************************************************************
* Checks if the given token is an IP4 subnet filter.
*
* @param token
* to analyze.
* @return true if it is a valid IP4 subnet filter else false.
************************************************************************/
private boolean isIP4SubnetFilter(String token) {
return IPWithSubnetChecker.isValidIP4Range(token);
}
}