[Tickets #13449] CalDAV / CardDAV sync need multiple logins / session to work

[noreply at bugs.horde.org]

BITTE NICHT AUF DIESE NACHRICHT ANTWORTEN. NACHRICHTEN AN DIESE  
E-MAIL-ADRESSE WERDEN NICHT GELESEN.

Ticket-URL: http://bugs.horde.org/ticket/13449
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  Ticket           | 13449
  Erstellt Von     | hn at axxedia-it.de
  Zusammenfassung  | CalDAV / CardDAV sync need multiple logins / session to
                   | work
  Warteschlange    | Horde Groupware Webmail Edition
  Version          | 5.2.1
  Typ              | Bug
  Status           | Unconfirmed
  Priorität        | 2. Medium
  Milestone        |
  Patch            |
  Zuständige       |
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hn at axxedia-it.de (2014-08-18 13:14) hat geschrieben:

I have a customer using Horde with iCAL4OL to sync calendars and  
contacts between users. After upgrading to 5.2.1 from 5.1.6 they  
cannot use iCAL4OL anymore, because there seems to be a problem with  
the authentication. iCAL4OL starts a CalDAV sync with the given  
credentials, then it gets disconnected and cannot authenticate again,  
because it tries to use the previous session which is not available  
any longer.

I did have a quick check with the developer of iCAL4OL who found out,  
that if iCAL4OL sends the login credentials each time the server asks  
for them (new connection / new ssl-handshake) it works fine. This  
behavior can also be seen on the demo server you provide, so it is not  
a configuration problem on my customers server.

In the syslog a failed connection attempt then looks like this:
HORDE: [imp] Login success for tb (zensiert) to {imap://localhost/}  
[pid 9310 on line 157 of "/var/www/webmail/imp/lib/Auth.p$
Aug 18 11:21:31 khs-server HORDE: [imp] [login] No password provided.  
[pid 9310 on line 732 of "/var/www/webmail/imp/lib/Imap.php"]
Aug 18 11:21:31 khs-server HORDE: [imp] [login] No password provided.  
[pid 9855 on line 732 of "/var/www/webmail/imp/lib/Imap.php"]

In 5.1.6 it was possible to reuse the existing connection thus it was  
not necessary to send the login credentials each time. We suspect a  
configuration error somewhere in the SabreDAV settings in Horde.

I also did a quick check with CalDAV Sync for android, and it looks  
like this app does handle the login problem by itself, because I can  
see it doing multiple logins / new connections during one  
synchronisation attempt.