[TYPO3-core] RFC #15034: Bug: Can't log into the backend when using an IPv6 Address as HTTP_HOST

[Roland Schenke]

This is an SVN patch request.

Type: Bugfix

Bugtracker references:
http://bugs.typo3.org/view.php?id=15034

Branches:
TYPO3_4-4 & trunk
did not check on TYPO3_4-3

Problem:
When one is trying to log into the backend with an IPv6 Address like http://[::1]/typo3/ a RuntimeException is thrown in class.t3lib_userauth.php::checkAuthentication() because "this host address" mismatches the "referer host".

Solution:
The error lies in t3lib_div::getIndpEnv().
In case of t3lib_div::getIndpEnv('TYPO3_HOST_ONLY') the HTTP_HOST is treated as IPv4 and therefore explode()ed at the colon(s). The first element of the resulting array is used as the TYPO3_HOST_ONLY value.
Because IPv6 Addresses can and have several colons I extended t3lib_div::getIndpEnv() at the appropriate places. This includes TYPO3_PORT.

Notes:
This is my very first bugfix to the TYPO3 Core.

A very big thank you to lolli for inspiring me to dive into TYPO3 Bugfixing. :-)
Best wishes from Roland your charming bartender of T3DD10. ;-)
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Mit freundlichen Gr??en / Best regards

Roland Schenke
Forschung und Entwicklung

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