[caldeveloper-l] iOS 11.03.3 Calendar problem

[Ken Murchison]

Hi Sean,

I'm 99% sure it wasn't an issue on 10.x.  Its definitely not an issue on 
9.3.5 on an older iPad mini.

I don't recall if I created a new account on 11.0.2, but an existing one 
worked fine.  I see the same initial PROPFIND + OPTIONS behavior on 11.1.


On 11/09/2017 11:21 PM, Sean Seguin wrote:
> Does this reproduce on pre-iOS 11.0.3 builds?
>
> ~Sean
>
>> On Nov 8, 2017, at 12:42 PM, Ken Murchison <murch at fastmailteam.com> wrote:
>>
>> Has anyone had issues adding a new CalDAV account on iOS 11.0.3?
>>
>> Looking at telemetry on my Cyrus server, it only does a PROPFIND on .well-known/caldav to find the current-user-principal and then does an OPTIONS on that URL.  That's it.  It never does any other PROPFIND/REPORT to discover calendars.
>>
>> Here is the last request/response that I get:
>>
>>
>> OPTIONS /dav/principals/user/user01/ HTTP/1.1
>> Host: 192.168.1.209
>> Content-length: 0
>> Connection: keep-alive
>> Accept: */*
>> User-agent: iOS/11.0.3 (15A432) accountsd/1.0
>> Accept-language: en-us
>> Authorization: Basic ...
>> Accept-encoding: gzip, deflate
>>
>> HTTP/1.1 200 OK
>> Date: Thu, 02 Nov 2017 00:06:56 GMT
>> Connection: Upgrade
>> Upgrade: h2c
>> Cache-Control: no-cache
>> Server: Cyrus-HTTP/3.1.2-155-ga56b840c7-dirty Cyrus-SASL/2.1.26 LibXML2.9.4 Nghttp2/1.21.1 OpenSSL/1.1 Zlib/1.2.11 SQLite/3.20.1 LibiCal/2.99 ICU4C/57.1 Jansson/2.10
>> DAV: 1, 2, 3, access-control, extended-mkcol, resource-sharing
>> DAV: calendar-access, calendar-auto-schedule
>> DAV: calendar-query-extended, calendar-availability, calendar-managed-attachments
>> DAV: calendarserver-sharing, inbox-availability
>> DAV: addressbook
>> Allow: OPTIONS, GET, HEAD
>> Allow: PROPFIND, REPORT, COPY
>> Content-Length: 0
>>
>>
>> I've made all kind of code tweaks on my server in an effort to trigger some different behavior with no joy.  I've removed the Server and Upgrade headers.  I've merged the multiple DAV and Allow headers into single headers.
>>
>> Any ideas?  Is there some token that iOS is now looking for in the OPTIONS response?  Is there some weird switch on iOS that disables calendar discovery?
>>
>>
>>
>> -- 
>> Ken Murchison
>> Cyrus Development Team
>> FastMail Pty Ltd
>>
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-- 
Kenneth Murchison
Cyrus Development Team
FastMail Pty Ltd