[sync] SyncML errors with Synthesis client on Treo 650

[Jan Kuipers]

Ben Klang wrote:
> Hello List,
>
> Last night I updated my Horde install to the latest CVS HEAD.  I also  
> downloaded the newest Synthesis.ch SyncML client 3.0.  Unfortunately,  
> I ran into some problems rying to sync.
>
> First, I configured it and tried to do an initial sync.  It looked  
> like it was going to work, I saw the numbers for each category  
> incrementing as they were sent and received from the server.   
> However, for some unknown reason (this _is_ the cellular network  
> after all...) the sync died abruptly.  Upon attempting to restart the  
> sync, the client appeared to enter an infinite loop of "Waiting" ->  
> "Receiving" -> "Waiting" and no message counts appeared.  Thinking  
> the broken sync had left corrupt data, I went into  MySQL and flushed  
> the horde_histories, horde_log, and horde_syncml_map tables.   
> Unfortunately, despite repeated attempts, I never could get it to  
> count the objects from SyncML again.
>
> This morning I had a closer look and this time I noticed a particular  
> message logged in the database:
>
> | 418041 | 2007-03-14 09:07:53 | HORDE |        4 |[horde] SyncML:  
> Caught output: <br /> <b>Notice</b>:  Undefined variable:  synctype  
> in <b>/srv/vhost/users/bklang/sites/hordehead/framework/SyncML/SyncML/ 
> Command/Alert.php</b> on line <b>131</b><br /> <br /> <b>Notice</b>:   
> Undefined variable:  synctype in <b>/srv/vhost/users/bklang/sites/ 
> hordehead/framework/SyncML/SyncML/Command/Alert.php</b> on line  
> <b>132</b><br /> <br /> <b>Notice</b>:  Undefined variable:  synctype  
> in <b>/srv/vhost/users/bklang/sites/hordehead/framework/SyncML/SyncML/ 
> Command/Alert.php</b> on line <b>133</b> (...)
>
> This text was repeated a few tens of times, but only one such message  
> was logged into the database.
>
> After digging a bit more, I found that the value of $this->_alert was  
> 225.  From what I can tell, this does not match any defined contstant  
> value the SyncML code was looking for.  This resulted in the case  
> statement above the lines mentioned in the error message not setting  
> the $synctype variable.
>
> I have a tcpdump-format capture of a broken session and I can  
> reproduce the problem.  One other interesting thing to note:  When I  
> configured the Synthesis client on my Treo to use SyncML version 1.1  
> (instead of auto-detecting version 1.2) I was apparently able to get  
> the sync to go through to success.
>
> Am I missing something?  It appears that the Horde SyncML supports  
> 1.2, so I'm supposing this is a bug in the code.  Please let me know  
> what other information may be useful to determine the problem.
>
> Thanks,
> /BAK/
>   
I posted this a few days ago on the dev list. Maybe it solves your problem:

----------------------------------------

Regarding HEAD:

The latest framework/DataTree/DataTree.php (rev 1.183) breaks up  
SyncML synchronization. (using the Synthesis client). Rev 1.182 works  
fine.

----------------------------------------

-- 
Jan Kuipers
Systeembeheer Lauwers College