iCalendar files over HTTPS via OAuth? https://tools.ietf.org/html/rfc5545#section-1 https://tools.ietf.org/html/rfc5545#section-1 CalDAV is already built on H

iCalendar files over HTTPS via OAuth? https://tools.ietf.org/html/rfc5545#section-1 https://tools.ietf.org/html/rfc5545#section-1 CalDAV is already built on HTTP, it's just implemented with a lot of gotchas and ancient history: https://tools.ietf.org/html/rfc4791#section-1 https://tools.ietf.org/html/rfc4791#section-1 http://www1.udel.edu/CIS/software/dist/google/calendar/java.client/gdata/doc/calendar.html#find_feed_url http://www1.udel.edu/CIS/software/dist/google/calendar/java.... for Google Calendar ics feed documentation (there might be better links, this just came up first)