User Registration

Allows users to register themselves as users, will behave differently according to the authentication method.

Database Authentication

Using database authentication (auth db) the login screen will present a new ‘Register’ option where the user is directed to a form where he/she fill’s a form with the necessary login/user information. The form includes a Recaptcha field to ensure a human is filling the form. After the form is correctly filled by the user an email is sent to the user with a link with an URL containing a hash belonging to his/her registration.

If the URL is accessed the user is inserted into the F.A.B user model and activated.

This behaviour can be easily configured or completely altered. By overriding the RegisterUserDBView properties. or implementing an all new class. RegisterUserDBView inherits from BaseRegisterUser that hold some handy base methods and properties.

Note that the process required for sending email’s uses the excellent flask-mail package so make sure you installed it first.

Enabling and using the default implementation is easy just configure the following global config keys on

AUTH_TYPE = 1 # Database Authentication
# Config for Flask-WTF Recaptcha necessary for user registration
# Config for Flask-Mail necessary for user registration
MAIL_PASSWORD = 'passwordformail'

OpenID Authentication

Registering a user when using OpenID authentication is very similar to database authentication, but this time all the basic necessary information is fetched from the provider and presented to the user to alter it (or not) and submit.

LDAP Authentication

LDAP user self registration is automatic, no register user option is shown. All users are registered, and the required information is fetched from the LDAP server.


You can configure the default behaviour and UI on many different ways. The easiest one is making your own RegisterUser class and inherit from RegisterUserDBView (when using auth db). Let’s take a look at a practical example:

from import RegisterUserDBView

class MyRegisterUserDBView(RegisterUserDBView):
    email_template = 'register_mail.html'
    email_subject = lazy_gettext('Your Account activation')
    activation_template = 'activation.html'
    form_title = lazy_gettext('Fill out the registration form')
    error_message = lazy_gettext('Not possible to register you at the moment, try again later')
    message = lazy_gettext('Registration sent to your email')

This class will override:

  • The template used to generate the email sent by the user. Take a look at the default template to get a simple starting point Mail template. Your template will receive the following parameters:

    • first_name
    • last_name
    • username
    • url
  • The email subject

  • The activation template. This the page shown to the user when he/she finishes the activation. Take a look at the default template to get a simple starting point Activation Template.

  • The form title. The title that is presented on the registration form.

  • Message is the success message presented to the user when an email was successfully sent to him and his registration was recorded.

After defining your own class, override SecurityManager class and set the registeruserdbview property with your own class:

class MySecurityManager(SecurityManager):
    registeruserdbview = MyRegisterUserDBView

Then tell F.A.B. to use your security manager class, take a look at the Security on how to do it.