Prevent external users joining gitea instance

[allanbowe]

We have started getting random repositories / users appear in our gitea instance, eg "AccidentInjuryLawyers". Before that, we had a sofa company. It looks like spam, I have to keep deleting them. How to prevent such signups?

https://git.datacontroller.io/explore/repos

[fbartels]

You have this "sign in with oauth" button on your Gitea which, allows anybody that has an account on gitea.com to login and create an account on your instance.

Edit: because of missing configuration that sign in button actually does not work (I just tested it now).

If this instance is only supposed to be for you, you should also disabled registration in your gitea. the config option can be found in https://docs.gitea.com/next/administration/config-cheat-sheet#service-service and https://docs.cloudron.io/apps/gitea/ explains how to modify your gitea configuration.

Edit2: I could confirm that with the gitea signup url (/user/sign_up) it is indeed possible to create an account on your system.

[allanbowe]

Thankyou! This fixed it up.

[fbartels]

@staff maybe it would be an idea to change the app that the default is a disabled registration. Sign in is the still possible with oauth.

[SansGuidon]

I've also lost quite some time kicking accounts and repositories,
in the end I've combined some of the options below (don't forget the [service] section marker and also restart after the changes !)

[service]
DISABLE_REGISTRATION = True
REGISTER_MANUAL_CONFIRM = True
EMAIL_DOMAIN_ALLOWLIST = XX_your_domain_here_XX,cloudron.local
DEFAULT_USER_IS_RESTRICTED = True

It's overkill if all are used at the same time, but depending on the needs and paranoia, it can be useful

[infogulch]

+1 to "change the app so that the default is a disabled registration". I just had a big mess to clean up because of this. https://forum.cloudron.io/topic/14053/clean-up-external-users-that-have-accessed-gitea-instance

At the very least these configs should be mentioned in the admin checklist.

[SansGuidon]

@girish could you please have a look at the suggestions here above about disabling registration by default to prevent spam?

[joseph]

Isn't it already false by default ? https://git.cloudron.io/packages/gitea-app/-/blob/master/app.ini.template?ref_type=heads#L78

[joseph]

I checked in a new install and registration is disabled by default afaict .

[SansGuidon]

@joseph said in Prevent external users joining gitea instance:

Isn't it already false by default ? https://git.cloudron.io/packages/gitea-app/-/blob/master/app.ini.template?ref_type=heads#L78

I believe the flag should be set to True not False to block spam

[joseph]

@SansGuidon of course Not sure what i was thinking... Which makes me wonder how come I didn't find any registration button .

[infogulch]

Maybe because the next line is SHOW_REGISTRATION_BUTTON = false. Not sure what this combination of features does, maybe it hides the register button but allows direct POST requests to the endpoint anyway?

[infogulch]

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