Why does iOS 7 not work with Baikal server?

Question

Since upgrading to iOS 7, my iPhone could no longer access my Baikal Card DAV server. On the project's GitHub page, there are several issues open regarding this issue, but none could help me getting my iPhone talk to the server. How can I make this work?

Answer 1

The important thing is to add these lines to your .htaccess

RewriteEngine On
# iOS 7 (and later)
RewriteRule /.well-known/carddav /card.php [R,L]
RewriteRule /.well-known/caldav /cal.php [R,L]
# Mac OS X 10.10
Redirect /.well-known/carddav /card.php

You then setup the Cal DAV as described in the installation instructions. For Card DAV make sure to follow these steps.

1. Server your.server.url (without http[s]-prefixes)
2. User name and password
3. Make sure the Account URL in the advanced settings looks like this: https://your.server.url/card.php/principals/username

Answer 2

I used the Flat File method via FTP and no .well-known directory is made. Therefore, I removed .well-known and made it work with:

RewriteRule /carddav /card.php [R,L]
RewriteRule /caldav /cal.php [R,L]

This is also above the rule:

RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization},L]

I am running my web server via a different port as well. Thanks for your config, just a little tweaking was required to make life good.

iPhone 5S IOS 7.0.4
Baikal FLAT FILE 0.2.7
Synology NAS 412+ DSM 4.3-3827