owncloud/core — pull request #9935 by LukasReschke (2014-07-27 14:46:52+00:00)
Title: Verify whether the URL is valid

Required for https://github.com/owncloud/mail/pull/100#issuecomment-50266017

@karlitschek Backport for stable6 and stable7 requested.

\cc @DeepDiver1975