[horde] CalDAV + IMP Authentication issues (or how to disable list capability for imp authentication driver?)

[gimili]

On 6/14/13 6:18 AM, Martin Felis wrote:
> The authentication for my Horde installation is set-up such that I let 
> imp do the authentication.
> The problem is, that when accessing the CalDAV-Subscribe-Address I get 
> the error message:
>
> <d:error>
> <s:exception>Sabre\DAV\Exception\NotFound</s:exception>
>   <s:message>User martin does not exist</s:message>
> <s:sabredav-version>1.8.4</s:sabredav-version></d:error>
>
> After playing around with the file 
> /usr/share/php/Horde/Dav/Principals.php I figured that the auth 
> capability 'list' is enabled (near line 90). This is however this 
> cannot be the case as I doubt that imp has such a deep knowledge of my 
> system.
> When commenting out the lines it works. Also when switching to the 
> IMAP authentication driver, however in this case I have to enter my 
> login-details twice which I do not enforce on my users.
> Is there any way to tell the imp authentication driver that the 'list' 
> capability is disabled?
>
I believe I am seeing the same or similar thing.  Caldav will only work 
for me if I change the authentication from Imp to Imap and then I have 
to login twice.