I've recently set up carddav service in my Cyrus installation (running my build
of 3.12.2) and attempted to use it to store vcard 4.0 contacts using the
Thunderbird Cardbook extension.
I can add cyrus as a carddav store, and store vcard 4.0 information into it -
the files in the mailstore are all in vcard 4 format - but when I set up a
second Thunderbird Cardbook client, all the cards are fetched as vcard 3 format.
I dug into it a bit - adding debug syslogs to callers of vcard_to_v3() - and I
think I know why.
The conversion is happening in propfind_addrdata() in imap/http_carddav.c
Cardbook fetches the cards with a REPORT request with a bit of xml (I've
formatted it with xmllint -format):
<?xml version="1.0" encoding="utf-8"?>
<C:addressbook-multiget xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:carddav">
<D:prop>
<D:getetag/>
<C:address-data Content-Type="text/vcard" version="4.0"/>
</D:prop>
<D:href>/dav/addressbooks/shared/b26c6ba9-297a-4154-81fb-e8861901be2f.vcf</D:href>
<D:href>/dav/addressbooks/shared/4eadf833-0517-4909-b5ff-0b3e32b8ddb0.vcf</D:href>
<D:href>/dav/addressbooks/shared/e6e0275d-3338-4198-9616-0b3978003550.vcf</D:href>
<D:href>/dav/addressbooks/shared/4426323c-f3cc-4cde-a6fe-05230fca8b0c.vcf</D:href>
<D:href>/dav/addressbooks/shared/f37c7416-f065-44ce-89d9-4b44412a5d86.vcf</D:href>
</C:addressbook-multiget>
Note the C:address-data element with Content-type="text/vcard" and
version="4.0" indicating that it wants vcard 4.
Looking at propfind_addrdata(), it only ever uses the default carddav struct
mime_type_t (which is vcard 3); nothing looks at the request and steps through
the alternate mime_type_t's to find one which matches what the client is asking
for.
I have a somewhat kludgy patch for this against 3.12 but I also see there's
been a bit of recent work on http_carddav.c in 3.13; I'd appreciate suggestions
on the best way to get this fixed for real..
- Bill
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Cyrus: Info
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