WebCalendar

I think I have worked out a bug fix for this problem. in
./includes/xcal.php you need to change the line in the generate_uid
function that says:

$uid = str_replace ( 'http://', ' ', $uid );

with

$uid = str_ireplace ( 'http://', ' ', $uid );
$uid = str_ireplace ( 'https://', ' ', $uid );

If you do this with an existing calendar you will get another load of
duplicates after it syncs with the iCal client. But at least it seems to
stay fixed so far.
File Added: xcal.php

I think I have tracked the issue down to the use of the SERVER_URL
variable. In ./install/index.php there is a chunk of code regarding this.
In it, it assumes that the page is running http, and doesn't check if it is
running https. In generate_url it tries to strip out this part of the URL,
but I am not sure this works. In the system settings page it correctly uses
the https:// part of the url. I am going to try the following:

a) modify generate_url to use the case insensitive version of str_replace
(str_ireplace)
b) modify generale_url to strip out https as well as http.

Since this code saves information to a session variable I may have to shut
down my browser each time I test it.