Direct Mail Subscription

Since no one is willing to even answer me, regarding issue #22832 for the TYPO3 core, i'm trying it here, since direct_mail_subscription now features its own copy of fe_adminLib.inc:

###FORM_URL### is filled by typoLink_URL() while ###THIS_URL### is filled by t3lib_div::getIndpEnv('TYPO3_REQUEST_DIR').

Combining both will result in a faulty URL if you use - for example - just a slash as absRefPrefix. Its impossible to correct this issue by just changing the Template without hardcoding any part of the URL or switching to a hardcoded path (not using RealURL or similar Extensions) and Build the Path like "###THIS_URL###index.php?id=###THIS_ID###"

Solution is switching TYPO3_REQUEST_DIR to TYPO3_REQUEST_HOST - but this will probably break backwards compatiblity and probably create issues with TYPO3 installations running in a subdirectory.

Another solution is adding a second value ###THIS_HOST### and fill it with TYPO3_REQUEST_HOST.

Add this after Line 217 in fe_adminLib.inc

$this->markerArray['###THIS_HOST###'] = htmlspecialchars(t3lib_div::getIndpEnv('TYPO3_REQUEST_HOST'));

Optionaly: substituteMarkerArray or fillInMarkerArray could be extended to parse TYPO3-Enviroment-Variables by default. So if you use ###TYPO3_REQUEST_HOST### in a Template, it will be magicaly replaced by the value from t3lib_div::getIndpEnv('TYPO3_REQUEST_DIR').