Is this thread covering the same ground as https://github.com/cyrusimap/cyrus-imapd/pull/2307 ? I don't know DAV well enough to tell. On Sun, Apr 8, 2018, at 10:53 AM, Ken Murchison wrote: > I originally wrote the code to handle public calendars in the "shared" > namespace, but I focused on user calendars first, and public calendar > support got tossed on the back burner. It appears that the code for > public calendars partly works.> > My first thought to get auto-discovery of public calendars is to add > /dav/calendars as a second calendar-home-set for users and see what > the Apple clients do with that. I don't know if they can handle > multiple home-sets. If that doesn't work, then we could map public > calendars into the user's home-set via the same subscription > mechanism that we use for CalDAV sharing.> > To answer the original question, calendars are enumerated by > meth_propfind() and propfind_by_collection() in http_dav.c> > > On 4/7/18 8:25 PM, Bron Gondwana wrote: >> Ken knows this code best. I bet there's something which is requiring >> that there's a user on the mboxname because we implement the same >> behaviour at FastMail by having a separate user on which shared >> resources are kept. The DAV resources are stored per-user, and >> without a place to keep them for "shared calendars" that code might >> just not be accessible. I'm sure it would be possible to create a >> shared DAV database as well for this case, but it just needs some >> programming effort.>> >> Bron. >> >> >> On Sun, 8 Apr 2018, at 07:30, Anatoli wrote: >>> Hi All, >>> >>> I'm trying to understand the code responsible for enumerating user >>> calendars (and xDAV resources in general) to try to make the >>> discovery work for shared resources too (currently there's no way to >>> access shared resources with Apple xDAV client implementation, yes >>> with Thunderbird as it doesn't use the discovery mechanism, but >>> instead should be pointed to the exact URL for each calendar). If I >>> understand it correctly, the functionality is in imap/http_caldav.c.>>> >>> Could you please point me to the place where the enumeration occurs >>> and briefly mention how the general workflow looks like?>>> >>> The client asks for: >>> >>> PROPFIND /dav/calendars/user/<user@domain>/ >>> >>> <A:propfind xmlns:A="DAV:"> ...>>> >>> The server responds with: >>> >>> HTTP/1.1 207 Multi-Status >>> >>> <A:multistatus xmlns:A="DAV:" ...> >>> <A:response> >>> <A:href>/dav/calendars/user/<user@domain>/</A:href> >>> <A:propstat> ... </A:response> >>> <A:response> >>> <A:href>/dav/calendars/user/<user@domain>/Default/</A:href> >>> <A:propstat> >>> <A:prop> ...>>> >>> The idea is to include in the returned lists the shared calendars >>> too with the discovery logic based on the IMAP shared folders.>>> >>> Below goes the initial exchange between the calendar app on iOS >>> 10.2.6 and Cyrus 3.0.5 when the exact URL (/dav/calendars/shared/) >>> for the shared calendar is provided in the advanced settings of the >>> app (the URL finally resets to the user principals folder >>> (/dav/principals/user/t...@domain.com/) as iOS is pointed to it by >>> Cyrus). In the attached file goes the telemetry for the rest of the >>> communication.>>> >>> Thanks, >>> Anatoli >>> >>> ---------- t...@domain.com Sun Mar 25 06:05:36 2018 >>> >>> <1521968736<*PROPFIND* */dav/calendars/shared/* HTTP/1.1 Accept: >>> */* Content-type: text/xml Connection: keep-alive Content-length: >>> 181 Host: mail.domain.com User-agent: iOS/11.2.6 (15D100) >>> accountsd/1.0 Prefer: return=minimal Depth: 0 Brief: t Accept- >>> language: en-us Authorization: Basic ... Accept-encoding: br, gzip, >>> deflate >>> >>> <1521968736<<?xml version="1.0" encoding="UTF-8"?> <A:propfind >>> xmlns:A="DAV:"> >>> <A:prop> >>> <A:current-user-principal/> >>> <A:principal-URL/> >>> <A:resourcetype/> </A:prop> </A:propfind> >>> >>> >>> >1521968736>HTTP/1.1 207 Multi-Status >>> Date: Sun, 25 Mar 2018 09:05:36 GMT Strict-Transport-Security: max- >>> age=600 Vary: Accept-Encoding, Brief, Prefer Preference-Applied: >>> return=minimal Content-Type: application/xml; charset=utf-8 Content- >>> Length: 546 >>> >>> <?xml version="1.0" encoding="utf-8"?> <A:multistatus >>> xmlns:A="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav"> >>> <A:response> >>> <A:href>*/dav/calendars/shared/*</A:href> >>> <A:propstat> >>> <A:prop> >>> <A:current-user-principal> >>> <A:href>*/dav/principals/user/t...@domain.com/*</A:href> >>> </A:current-user-principal> >>> <A:resourcetype> >>> <A:collection/> >>> <C:calendar/> </A:resourcetype> </A:prop> >>> <A:status>HTTP/1.1 200 OK</A:status> </A:propstat> >>> </A:response> </A:multistatus> >>> >>> <1521968736<OPTIONS /dav/principals/user/t3%40domain.com/ HTTP/1.1 >>> Host: mail.domain.com Connection: keep-alive Accept: */* User- >>> Agent: iOS/11.2.6 (15D100) accountsd/1.0 Accept-Language: en-us Content- >>> Length: 0 Accept-Encoding: br, gzip, deflate >>> >>> >1521968736>HTTP/1.1 200 OK >>> Date: Sun, 25 Mar 2018 09:05:36 GMT Strict-Transport-Security: max- >>> age=600 Cache-Control: no-cache Link: </dav/principals/.server- >>> info>; rel="server-info"; >>> token="80769c2c66d340ecd178710db26d56b9c4699e3e" 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>>> Email had 1 attachment:
>>> * telemetry.log 36k (text/x-log)>> >> -- >> Bron Gondwana, CEO, FastMail Pty Ltd >> br...@fastmailteam.com >> >> > > > -- Kenneth Murchison Cyrus Development Team FastMail Pty Ltd
