1579020 - consider removing the calendar wcap support

Status: RESOLVED FIXED

(Calendar :: Provider: WCAP, task)

Description

[Magnus Melin [:mkmelin]]

https://searchfox.org/comm-central/source/calendar/providers/wcap

WCAP is an odd standard - https://en.wikipedia.org/wiki/Web_Calendar_Access_Protocol

I suppose, it was only the Sun servers that ever implemented it. It's successor Oracle Communications Messaging Server has had CalDAV support for almost a decade, so if there is any WCAP usage left, people have a good upgrade path they can use.

http://www.oracle.com/us/industries/communications/communications-calendar-server-ds-071728.pdf

It would seem best to bury this, and focus on improved CalDAV support instead.

There is only 5 bugs touched in the last 5 years in this bugzilla component...!

Comment 1

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

I was pretty sure I filed a bug to remove this. I believe I checked with a few WCAP folks via email a long while ago and there was no interest in maintaining it as an add-on. I've put them on CC just to make sure I didn't forget about a reply.

Comment 2

[Stefan Sitter [:ssitter]]

Based on Bug 1582429 / Bug 1582746 there are still WCAP users with Thunderbird 68.

Comment 3

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

Attachment: Changes minus removals - v1

I'll see if I can extract this into a repository and make it an add-on as well, but I can't commit to maintaining it. If someone wants to pick it up I'm happy to add ownership to that repo.

Again just the changes minus removals. I deleted:

calendar/locales/en-US/chrome/calendar/providers/wcap/wcap.properties
calendar/providers/wcap/

Comment 4

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

Note there was one more mention of WCAP at https://searchfox.org/comm-central/rev/266e9cc242cd0de076e85eb4aa0b8392fcb2ca01/calendar/lightning/content/lightning-item-iframe.js#1653 but it seemed too scary to touch.

Comment 5

[Magnus Melin [:mkmelin]]

What do we know about the URLs? Is it possible to autodetect CalDAV support and move to that, for existing users? (Maybe after bug 306495?)

Comment 6

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

I'm sure it would be possible in some form, though I currently don't feel it is worth the migration effort. This is a provider last actively developed about 10 years ago and users of it will be rare. If we get support questions, we can point them to the github repo I set up at https://github.com/kewisch/wcap-provider .

Comment 7

[Magnus Melin [:mkmelin]]

Was there a try run? checkin-needed?

After this, I assume the calendar subscription dialog is also dead, and can be removed. https://searchfox.org/comm-central/rev/266e9cc242cd0de076e85eb4aa0b8392fcb2ca01/calendar/lightning/content/messenger-overlay-sidebar.xul#142

Comment 8

[Jorg K (CEST = GMT+2)]

For the checkin, see bug 1584614 comment #3.

Comment 9

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

(In reply to Magnus Melin [:mkmelin] from comment #7)

After this, I assume the calendar subscription dialog is also dead, and can be removed. https://searchfox.org/comm-central/rev/266e9cc242cd0de076e85eb4aa0b8392fcb2ca01/calendar/lightning/content/messenger-overlay-sidebar.xul#142

The feature was originally written for WCAP, but it could be useful for CalDAV as well. I believe the RFC allows for searching of calendars, and I believe Cyrus also has a draft for more advanced calendar search. If we want to revamp this feature with completely new UI based on HTML I'd be ok removing it for now though.

Comment 10

[Magnus Melin [:mkmelin]]

So can we finish this off?

Comment 11

[Philipp Kewisch [:Fallen] [:📆][:🧩]]

Let's consider the subscription dialog in a followup. I'd be happy if someone could do a try run for me, but I think this is essentially ready to go.

Comment 12

[Magnus Melin [:mkmelin]]

Let's see how it goes - https://treeherder.mozilla.org/#/jobs?repo=try-comm-central&revision=775683d457c4d6b7246b77e5eecaf3b185fc3f2f

Comment 13

[Magnus Melin [:mkmelin]]

Attachment: bug-1579020-remove-wcap-provider.diff

Full removal patch which was on try. Seems try is happy so I'll go ahead and land it later then.

Comment 14

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/comm-central/rev/cf982e0a8b1b
Remove WCAP provider. r=darktrojan

Comment 15

[Magnus Melin [:mkmelin]]

Hmm, we have no 73 milestone yet. Philipp, is it you who's creating those?

Comment 16

[Jorg K (CEST = GMT+2)]

Make it 72 in the meantime.