[TYPO3-core] RFC: #15576: Enable customization for the backend and frontend fatal error messages

[Reinhard Führicht]

Hi!

This is an SVN patch request.

Type: Feature

Bugtracker reference:
http://bugs.typo3.org/view.php?id=15576

Branches:
Trunk

Problem:
The error screens like "The current username, password or host was not 
accepted ..." are not customizable. The image shown could be set in 
$TBE_STYLES in PHP, but is not changeable in the install tool.

Solution:
This patch moves the HTML code into a template file, makes template file 
and the displayed image configurable in the install tool.
Furthermore the patch does some code cleanup, because the code for the 
error templates existed twice - once for FE and once for BE.

Additional information:
In order to get such an error screen, I removed $typo_db_password from 
localconf.php.


Regards,
Reinhard
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