Ability to disable all identity server functionality via the config file

[turt2live]

By setting the default_is_url to an empty string/null or something.

[lampholder]

Interesting. What consequences would this have?

Threepid invites wouldn't work; what else?

[lampholder]

Also, just so I'm not guessing, what's the reason behind this?

[turt2live]

Someone wanted it for privacy concerns (I really should have linked the message). They were concerned that their users would accidentally use the identity server in a privacy-centric group.

The other thing (that I know of) to disable would be adding/editing 3pids.

[jasmir]

Is there any movement here? I'd like to add that using the .well-known/matrix/client stuff for it would be very convenient.
For example by "m.identity_server": { "base_url": "" }

[meskio]

As a work around I've notice that having an 'identity server' that just replies an application/json {} in https://example.com/_matrix/identity/api/v1 works to keep riot happy and don't use an identity server.

But will be really nice to get an official way to disable the identity server.

[aaronraimist]

Would also be nice to have this when the identity server you wanted to use is down :)

[lampholder]

#10094

[aaronraimist]

Doesn't matrix-org/matrix-react-sdk#3088 fix 90% of this? All you need to do now is make it also work with a completely blank field instead of only working if you enter a URL that isn't an identity server.

Related: #10274

[lampholder]

Updated the issue title to distinguish it from #10425

[dbkr]

Annoyingly we overlooked this in MSC2078 and the id_server param is still require in all situations, so spec-wise we'd be unable to register with an email at all if no IS were specified, even if the HS sends its own emails.

@turt2live points out that (again, spec-wise) a solution to this could be to abuse params from UIA to have a flag for requires_identity_server: true/false. Default true.

[rubo77]

Why is this closed?

[t3chguy]

Because it got implemented by #3285?

[rltas]

Because it got implemented by #3285?

I sifted through related issues and commits but still can't figure it out - what's the right way to do it?

/e: nevermind, got it. The right way to do is to do nothing at all and just leave it out.