Overview: Calendar Sharing

[georgehrke]

This is an overview ticket for feature requests / bugs related to Calendar Sharing:

Sharing

• Allow (internal) sharing of subscribed webcal calendars #1600
• Federated calendar and contacts sharing [$360.00] #1440
• Can not delete group shared calendars (and addressbooks I guess) #1653
• Accept or decline calendar shares through notifications #19568
• group member can overwrite private appointment #5551
• Share calendar to users or groups with "show only as busy". #11214
• Per-user settings for shared events #19827
• Contacts Birthday calendar should be shareable
• Send invitations for shared calendars #26668
• CalDAV: Support calendar sharing via MacOS Calendar.app #5050
• Can't add myself to a shared event calendar#2659

Publishing

• Allow editing on publicly shared calendars #3509
• Share calendar to users or groups with "show only as busy". #11214

Features missing for feature parity with file-sharing:

• Share with e-mail address
• Option for forbid resharing
• expiry date
• Add note to sharee
• #27545 password protect (public)
• Hide download (public)

[georgehrke]

cc @tcitworld
cc @rullzer for feature planning :)

[georgehrke]

One of the biggest issue when it comes to publishing is that each calendar is limited to one publishing link.

This is causing many issues that you can't simply revoke a calendar without breaking embedded calendars / having to send out a new public link to people who should still have access.

In order to solve any of the publishing related tickets mentioned above, we first need support for multiple publishing links. Once we have support for that, adding support for more sharing types including "internal busy", "public busy", "public editable", "public busy editable" should be straight forward.

[georgehrke]

Once we have support for these public types, adding password-protected public shares or shares with expiration-link would also be straight forward.

[georgehrke]

Overall tasks:

• discuss new columns that have to be added to dav_shares.
• discuss changes to CalDAV sharing and publishing API.

[georgehrke]

also cc @raimund-schluessler @skjnldsv

This will require changes to cdav-library, but i aim at implementing them in a backward-compatible way.

[tcitworld]

Can cs:publish-url handle multiple URLs ? We'll have to go with our own thing otherwise.

[georgehrke]

Can cs:publish-url handle multiple URLs ? We'll have to go with our own thing otherwise.

Not as far as i can tell. We would have to move to our own implementation.

[favincen]

Hi. I suggest to add also a link to issue "Send invitations for shared calendars" #26668 , as it is about shared calendars expected features.

[favincen]

This overview of calendar sharing issues could also reference #5050 issue about sharing from MacOS Calendar.app.

[ZID-TU-Graz-Collab]

I suggest to add #19994 (as mentioned in the this issue, the problem still occurs in our installation, NC Version 26.0.4)

[gnrfzui]

I suggest to add #19994 (as mentioned in the this issue, the problem still occurs in our installation, NC Version 26.0.4)

Seconded: #19994 is still open with NC 27.1.5 and Calendar 4.6.6