Connectors for Lightning/Sunbird

As of Lightning/Sunbird version 0.3, there are three supported remote calendar protocols:

1. WCAP (Sun ONE's XML/RPC calendar protocol), which is implemented in Sunbird's mozilla/calendar/providers/wcap sources. It uses plain-old GET and POST commands, and its online specification is at Overview and Commands.

2. iCalendar, which uses the PUT method to send the complete updated calendar to the same Zimbra URL. This could get very inefficient with large calendars, and then Zimbra would have to delete events from the calendar folder to make sure there aren't duplicates. It also uses a PROPFIND, which is rejected by Tomcat.

3. CalDAV, which uses the REPORT method to get a listing of calendar entries, and PUT to update them (neither of which are supported by Tomcat).

michael-fig writes: It looks like WCAP is the way to go. It looks like more work to add REPORT and PUT to Tomcat than to implement the WCAP interface, though CalDAV would be ideal for the future, once its specification has stabilized, since it is more elegant. So, I'm writing a servlet to implement WCAP. I'll keep updating this page with progress.

2006-10-20 - Took an all-night crash course in Java and Tomcat. Now the http://ZIMBRA-SERVER/service/wcap URL is responding to requests.