[TYPO3-core] RFC: allow .. in names -> check for ../ (#3364)

[Martin Kutschker]

Martin Kutschker schrieb:
> Franz Holzinger <franz at fholzinger.com> writes on 
> Fri, 28 Apr 2006 21:47:31 +0200 (METDST):
> 
>> Hello Martin,
>>
>> this would lead to errors where someone has used '..' as a pathname
>> without a trailing '/' in the call of t3lib_div::validPathStr().
>>
>> Is it a must that a pathname has a trailing '/' ?
> 
> 
> I mean the check currently denies any .. within the path.
> 
> So "foo..bar" is invalid without any real reason. What should be forbidden is "../foo/bar" or "fo/../bar":
> 
> preg_match('|(?:^\.\.|/\.\./|',$path)

Committed (HEAD, TYPO3_4-0)

Masi