override registration disable

[dan-it]

Add config checkbox to override if registration is disabled. If checked
registration will be always possible from oauth.

[yennor]

i've tested that patch and it works :-)

[rasos]

@splitbrain could we get this merged - desperately needed to prevent people registering when they should use the oauth built in registration. Hiding the register button by CSS does not keep bots away to register.

[XA21X]

I don't believe there's a functional difference, but the docs state that the onoff class should be of type integer instead of boolean. The current default false should be replaced with 0?

[dan-it]

Seems legit. Replaced in the code.

[jeffdgr8]

Great PR! We require this function for our internal wiki use case, where only emails in a specific domain are allowed to authenticate and accounts should be created automatically for new users. All logins are through Google.

I might suggest adding something like $lang['override-newreg'] = 'Allow OAuth user creation even when registration is disabled'; to lang/en/settings.php (other language translations eventually) as a description for the setting.

[splitbrain]

this feature is already part of the current plugin