Custom email validation

Nir S

Hey,

I want to only allow users from specific domains to register (e.g. only people with @gmail.com emails).

Seems like I can somehow use filter:register.interstitial hook, but not sure exactly how (and it seems I'd have to duplicate all the existing email validation logic).

What's the best way to go about this?

Thanks!

<baris>

Maybe this helps https://gitlab.com/frissdiegurke/nodebb-plugin-email-whitelist.

Nir S

@baris Thanks for the quick response!

Not in front of a computer right now, but AFAICT this plugin hooks to the filter:register.check which fires after username and password are provided, but before email is provided (which happens later via interstitials).
Maybe things changed since it was written?

What am I missing?

<baris>

Hmm yeah you are right, email got removed from register page.

Did you try throwing an error in filter:register.interstitial if email confirmation is from wrong domain?

julian

@nir-s Ah, hm... yes that seems to be a functionality regression that I had not considered when I refactored the email handling.

Nir S

@baris IIUC the function registered to filter:register.interstitial adds objects to data.interstitial with template, data and callback.

It seems callback is optional, but template isn't.
I tried using a callback to verify the email to throw an error when it fails, but looks like I have to specify a template (which I don't need).

I guess I can try to add an empty template, but I'm wondering if there's a better way.

Nir S

Actually even if I add an empty template, by the time the hook for checking the domain of the email triggers, the email interstitial would already update the non-validated email in the database and send a confirmation email ...

Any suggestions?

<baris>

@Nir-S https://github.com/NodeBB/NodeBB/commit/6b4f35c2fab7e64357db5220e73127bfe98a15f8

Nir S

@baris That was fast Thanks!

I'll check it out and update.

Nir S

@baris @baris Thanks guys. It's working well.