iCalendar Export Plugin

There are some Calendaring tools that don't yet support CalDAV, but they do have support for the 'Subscribe to' feature.

Starting with SabreDAV 1.4, there is now a plugin that grabs an existing calendar, and exports it as a file that's compatible with these applications.

Setup

To use this plugin, simply add it to your server:

$icsPlugin = new \Sabre\CalDAV\ICSExportPlugin();
$server->addPlugin($icsPlugin);

After this is added, you can generate these exports by finding a url to your calendar, and adding ?export at the end of the url. This will automatically trigger a download.

Sample url

http://dav.example.org/calendars/user1/mycalendar?export

Options

The ICSExport plugin supports several options since version 2.0.

option	description	example
start	Only show events from after this unix timestamp	`start=1391707119`
end	Only show events from before this unix timestamp	`end=1391707215`
expand	Automatically expand recurring events	`expand=1`
accept	Convert the iCalendar data to jCal	`accept=jcal`
componentType	Filter by componentType, such as only `VTODO`.	`componentType=VTODO`

If you want to use expand, you must specify start and end.
Using start, end or expand automatically filters out VTODO and VJOURNAL, because only VEVENT is currently supported. If you need support for VJOURNAL and VTODO, open a feature request.
componentType was added in sabre/dav 3.0.

Sample url:

http://dav.example.org/calendars/user1/mycalendar?export&start=1391707119&end=1391707215&expand=1&accept=jcal