[kronolith] Caldav import less strict than output on UID handling

Jan Schneider jan at horde.org
Tue Jan 15 12:55:19 UTC 2019

Zitat von Ralf Lang <lang at b1-systems.de>:

> Hi,
> is this a known issue with somebody working on it? Didn't find anything
> on the tracker.
> A user repeatedly had issues with caldav sync to android erroring.
> Exporting/importing the whole calendar fixed it temporarily.
> The user works with thunderbird and android via caldav to the horde
> backend. Horde and kronolith are essentially git master from 12/2018.
> We have narrowed down the issue:
> He got an invitation from an exchange user. He accepted via Thunderbird,
> which in turn pushed the event to the server.
> Horde offered the new event via caldav as
> /rpc/calendars/thatuser/calendar:KU0qE1cPK8GdcNjVSR68WQ8/%257b0A748907-A0A5-4F3D-A5D4-D4E1F221C1B1%257d.ics
> The uid in the file is
> UID:{0A748907-A0A5-4F3D-A5D4-D4E1F221C1B1}
> Seems like the braces are url-expanded and then most likely url
> expansion happens again at some point (on the %) when trying to fetch it.
> However, trying to access that URL yielded a 404.
> I will try to narrow this next and then open a bug with a reproducer.

Not a known issue, though I have fixed issues with URL-encoding UIDs  
in the past.

Jan Schneider
The Horde Project

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