Hello,
I will describe a solution I found (it is not my solution, but the
original source is not in English) to a problem I faced when using the
owncloud calendar. Am posting it here, so that others will find it via
google.
The problem is that certain calendar events are not shown when viewing
the calendar through a browser. The same calendar events are shown
properly if you subscribe to the calendar via Thunderbird+Lightning, or
any other calendar software.
I am using owncloud v 4.5.5 on a debian squeeze amd64 box.
The problem is that the .ics file I uploaded to initially populate the
calendar entries was apparently faulty. Some of the entries had
incorrect timezone data, and instead of showing those entries in the
browser, I found the following in the apache error.log
----
[Thu Jan 31 21:25:17 2013] [error] [client 213.103.196.57] PHP Fatal
error: Uncaught exception 'InvalidArgumentException' with message
'00001231T000000Z is not a valid DateTime or Date string' in
/var/www/owncloud/3rdparty/Sabre/VObject/Property/DateTime.php:170\nStack trace:\n#0
/var/www/owncloud/3rdparty/Sabre/VObject/Property/DateTime.php(140):
Sabre_VObject_Property_DateTime::parseData('00001231T000000...',
Object(Sabre_VObject_Property_DateTime))\n#1
/var/www/owncloud/3rdparty/Sabre/VObject/Component/VCalendar.php(118):
Sabre_VObject_Property_DateTime->getDateType()\n#2 [internal function]:
Sabre_VObject_Component_VCalendar->expand(Object(DateTime),
Object(DateTime))\n#3 /var/www/owncloud/lib/vobject.php(205):
call_user_func_array(Array, Array)\n#4
/var/www/owncloud/apps/calendar/lib/app.php(410):
OC_VObject->__call('expand', Array)\n#5
/var/www/owncloud/apps/calendar/lib/app.php(410):
OC_VObject->expand(Object(DateTime), Object(DateTime))\n#6
/var/www/owncloud/apps/calendar/ajax/events.php(28):
OC_Calendar_App::generateEventOutput(Array, Object(DateTime),
Object(DateTime))\n#7 /var/www/ in
/var/www/owncloud/3rdparty/Sabre/VObject/Property/DateTime.php on line
170, referer: http://<website-name-removed>/owncloud/?app=calendar
----
Now, I don't even know how those faulty entries were created (IF they
are faulty. Everything works fine with all my other calendaring
software). And even if the entries were faulty, silently preventing
certain entries from being visible is NOT good.
A similar problem was posted on the Forums
http://forum.owncloud.org/viewtopic.php?f=3&t=4686
But apparently this did not improve anything.
I finally found a solution, when I stumbled upon this page
http://glumpundzeug.wordpress.com/2013/01/23/owncloud-migration-v3-auf-4-5-6-ical-import-schlagt-fehl/
(I don't understand what is written there) but using
sed -i 's/CREATED:0000/CREATED:1970/g' myfile.ics
and then reuploading the modified .ics file fixed the problem.
I hope this post helps someone and that this issue gets fixed, or that
the code is modified to report the failure noisily to the user.
Regards,
Sagar
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