oc-1895 - [OC 4.5RC1] Domain name is missing from the URL when SSL-Proxy is enabled

[msrex]

From http://bugs.owncloud.org/thebuggenie/owncloud/issues/oc-1895

Unable to reproduce due to the lack of an SSL proxy.

Description:
Since this change f8eebcb has been introduced to OC 4.5RC1, I'm experiencing a problem where I receive an error message upon login when I have the SSL-Proxy enabled.

I use a minor modification to the code as described in the following post http://forum.owncloud.org/viewtopic.php?f=3&t=3841#p8707, which enables the SSL-Proxy on my host server (Host Europe). It was working without any issues until the above commit was made recently.

As I have indicated later in the same thread http://forum.owncloud.org/viewtopic.php?f=3&t=3841#p9014, I'm now redirected to an address whose domain name is missing for some odd reason when I access OC through SSL-Proxy. Say my OC is located at https://ssl.webpack.de/domain.com/owncloud, I am often (but not always) redirected to https://ssl.webpack.de/owncloud where the "domain.com" part is missing. This has repeatedly happened when, I, for instance, first login to OC (which can be successful) and create a new user, then logout and try to login as the newly created user. In this case, I am redirected to the URL without the domain part and am shown a "Page Not Found" error message.

Is the SSL-Proxy modification not compatible with the recent change committed to OC?

Reproduction steps:
After having modified the code as described here http://forum.owncloud.org/viewtopic.php?f=3&t=3841#p8707, create another user in OC and try to login with the new username. One is then redirected to an invalid URL whose domain name is missing from it.
#3 Comment posted by zirydy Oct 10, 05:37

Perhaps my problem has to do with the way OC handles the SSL-Proxy for shared hosting in general.

I'm not sure what is the status of this bug report, but it sounds very relevant to the problem I raised here:

http://bugs.owncloud.org/thebuggenie/owncloud/issues/oc-890

[DeepDiver1975]

two addition config parameters are available since v4.5.3 to specify host and protocol:
https://github.com/owncloud/core/blob/stable45/config/config.sample.php#L33
overwritehost and overwriteprotocol

With them configured properly this issue should solvable.