Documentation

Reimplements the original davPutObject and Icalendar_Handler / Icalendar_Handler_Dav logic but with some changes:

• Namespaced code, injection, no/less globals
• Run same code for changes from frontend, import, interapp API
• Events/Messages are fired to listeners (itip, notification, ...)
• Always save/modify caldav representation
• Listeners should work on provided objects, not on saved state

Workflow:

Find relevant backend Check Permission [checkPermissionListener] check for existing event create:

• create event in event storage
• create event in caldav storage
• handle attendees, if any
• handle resources, if any
• initialize change history

update:

• Compare Events
• Reject outdated updates
• Apply valid updates to calendar event backend
• Apply valid updates to caldav storage backend
• Document change history