[BUGFIX] Fix incomplete validation of source_host field

This patch complete the validation of source_host field and
add some tests for the server side validation.
Also a client side validation / manipulation is added.

Resolves: #83659
Releases: master
Change-Id: I5117bd353d116f1366ca779c37ba868fec9f34c8
Reviewed-on: https://review.typo3.org/55467


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Susanne Moog <susanne.moog@typo3.org>
Tested-by: Susanne Moog <susanne.moog@typo3.org>
Reviewed-by: Andreas Wolf <andreas.wolf@typo3.org>
Tested-by: Andreas Wolf <andreas.wolf@typo3.org>