Splitting on , probably isn't a very good idea for XForwardedFilter configs…?

[hedefalk]

I naively tried configuring with something like:

180.19..\d{1,3}.\d{1,3}

actually taken from the Java inlined defaults, but since the String based config will pre-split on , it doesn't work:

Caused by:
java.lang.IllegalArgumentException: Illegal pattern syntax '35\.19.\.\d{1'
	at fr.xebia.servlet.filter.XForwardedFilter.commaDelimitedListToPatternArray(XForwardedFilter.java:627)

[hedefalk]

I mean, I read this:

* <td>Comma delimited list of regular expressions (in the syntax supported by the {@link java.util.regex.Pattern} library)</td>
 * <td>10\.\d{1,3}\.\d{1,3}\.\d{1,3}, 192\.168\.\d{1,3}\.\d{1,3}, 172\\.(?:1[6-9]|2\\d|3[0-1]).\\d{1,3}.\\d{1,3}, 
 * 169\.254\.\d{1,3}\.\d{1,3}, 127\.\d{1,3}\.\d{1,3}\.\d{1,3} <br/>
 * By default, 10/8, 192.168/16, 172.16/12, 169.254/16 and 127/8 are allowed</td>

but I can't do the commas in \d{1,3}