[CalendarServer-users] AssertionErrors in IMAP access for invitation responses

[Joe Malcolm]

I am regularly getting tracebacks of the following type in error.log. The effect of this seems to be that responses to my invitations are not processed and deleted from the mailbox. I am using the FreeBSD port under FreeBSD11.

> cal# pkg info|grep calendarserver
> py27-calendarserver-9.0        Calendar and Contacts Server from Apple (RFC 4791, RFC 6352)
> cal# freebsd-version -ku
> 11.0-RELEASE-p2
> 11.0-RELEASE-p5

> 2017-07-14T01:39:54+0000 [caldav-0]  [txdav.caldav.datastore.scheduling.imip.inbound.IMAP4DownloadProtocol#debug] IMAP servergreeting
> 2017-07-14T01:39:54+0000 [caldav-0]  [txdav.caldav.datastore.scheduling.imip.inbound.IMAP4DownloadProtocol#debug] IMAP logged in
> 2017-07-14T01:39:54+0000 [caldav-0]  [txdav.caldav.datastore.scheduling.imip.inbound.IMAP4DownloadProtocol#debug] IMAP Inbox selected
> 2017-07-14T01:39:54+0000 [caldav-0]  [twisted.internet.defer#critical] Unhandled error in Deferred:
> 2017-07-14T01:39:54+0000 [caldav-0]  [twisted.internet.defer#critical] 
> 2017-07-14T01:39:54+0000 [caldav-0]     Traceback (most recent call last):
> 2017-07-14T01:39:54+0000 [caldav-0]       File "/usr/local/lib/python2.7/site-packages/twisted/mail/imap4.py", line 2608, in _defaultHandler
> 2017-07-14T01:39:54+0000 [caldav-0]         cmd.finish(rest, self._extraInfo)
> 2017-07-14T01:39:54+0000 [caldav-0]       File "/usr/local/lib/python2.7/site-packages/twisted/mail/imap4.py", line 428, in finish
> 2017-07-14T01:39:54+0000 [caldav-0]         d.callback((send, lastLine))
> 2017-07-14T01:39:54+0000 [caldav-0]       File "/usr/local/lib/python2.7/site-packages/twisted/internet/defer.py", line 459, in callback
> 2017-07-14T01:39:54+0000 [caldav-0]         self._startRunCallbacks(result)
> 2017-07-14T01:39:54+0000 [caldav-0]       File "/usr/local/lib/python2.7/site-packages/twisted/internet/defer.py", line 567, in _startRunCallbacks
> 2017-07-14T01:39:54+0000 [caldav-0]         self._runCallbacks()
> 2017-07-14T01:39:54+0000 [caldav-0]     --- <exception caught here> ---
> 2017-07-14T01:39:54+0000 [caldav-0]       File "/usr/local/lib/python2.7/site-packages/twisted/internet/defer.py", line 653, in _runCallbacks
> 2017-07-14T01:39:54+0000 [caldav-0]         current.result = callback(current.result, *args, **kw)
> 2017-07-14T01:39:54+0000 [caldav-0]       File "/usr/local/lib/python2.7/site-packages/txdav/caldav/datastore/scheduling/imip/inbound.py", line 692, in cbGo
> tSearch
> 2017-07-14T01:39:54+0000 [caldav-0]         self.fetchUID(ms).addCallback(self.cbGotUIDs)
> 2017-07-14T01:39:54+0000 [caldav-0]       File "/usr/local/lib/python2.7/site-packages/twisted/mail/imap4.py", line 3494, in fetchUID
> 2017-07-14T01:39:54+0000 [caldav-0]         return self._fetch(messages, useUID=uid, uid=1)
> 2017-07-14T01:39:54+0000 [caldav-0]       File "/usr/local/lib/python2.7/site-packages/twisted/mail/imap4.py", line 4023, in _fetch
> 2017-07-14T01:39:54+0000 [caldav-0]         assert isinstance(messages, bytes), messages
> 2017-07-14T01:39:54+0000 [caldav-0]     exceptions.AssertionError: 4:68
> 2017-07-14T01:39:54+0000 [caldav-0]     

dovecot does believe logins are occurring, which accords with calendarserver’s logging.

Any clues, pointers, or debugging hints?

Joe



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