[TYPO3-core] FYI24 Bug #11585: Faulty usage of t3lib_matchCondition in backend template

[Oliver Hader]

This is an SVN patch request that will be committed to SVN after 24
hours if nobody objects.

Type: Bugfix

Bugtracker references:
http://bugs.typo3.org/view.php?id=11585

Branch: Trunk

Problem:
The backend base template (typo3/template.php) creates an instance of
t3lib_matchCondition to determine browser information. However, it's not
required to load the full t3lib_matchCondition class - besides that it's
intended for TypoScript conditions in the frontend.
This is a classical misuse...

Solution:
Extract the methods browserInfo() and browserInfo_version() from
t3lib_matchCondition and move them to a new class t3lib_div_browser.
Since browserInfo() had a hook (which is still buggy),
t3lib_matchCondition still calls $this->browserInfo().

Notes:
This is a pre-cleanup for the feature "backend conditions". Find a unit
test attached that tries to match some browser and version conditions.

olly
-- 
Oliver Hader
TYPO3 Release Manager 4.3