Dashboard links are leading to Internal Error when user is not logged in

[theromsh]

Bug description

We are using apache-superset version 3.0.3
When a user that is not logged in tries to reach a dashboard link (e.g: https://<superset_domain>/superset/dashboard/<dashboard_id>/) he get Internal server error (500)
The error message in logs

Traceback (most recent call last):
File "/home/build/.pyzr/venvs/superset-bl5I_M_4-py3.10/lib/python3.10/site-packages/flask/app.py", line 1823, in full_dispatch_request
rv = self.dispatch_request()
File "/home/build/.pyzr/venvs/superset-bl5I_M_4-py3.10/lib/python3.10/site-packages/flask/app.py", line 1799, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)
File "/home/build/.pyzr/venvs/superset-bl5I_M_4-py3.10/lib/python3.10/site-packages/flask_appbuilder/security/decorators.py", line 137, in wraps
return f(self, *args, **kwargs)
File "/home/build/.pyzr/venvs/superset-bl5I_M_4-py3.10/lib/python3.10/site-packages/superset/utils/log.py", line 253, in wrapper
value = f(*args, add_extra_log_payload=log, **kwargs)
File "/home/build/.pyzr/venvs/superset-bl5I_M_4-py3.10/lib/python3.10/site-packages/superset/views/core.py", line 898, in dashboard
"user": bootstrap_user_data(g.user, include_perms=True),
File "/home/build/.pyzr/venvs/superset-bl5I_M_4-py3.10/lib/python3.10/site-packages/superset/views/utils.py", line 97, in bootstrap_user_data
roles, permissions = get_permissions(user)
File "/home/build/.pyzr/venvs/superset-bl5I_M_4-py3.10/lib/python3.10/site-packages/superset/views/utils.py", line 111, in get_permissions
roles_permissions = security_manager.get_user_roles_permissions(user)
File "/home/build/.pyzr/venvs/superset-bl5I_M_4-py3.10/lib/python3.10/site-packages/flask_appbuilder/security/sqla/manager.py", line 420, in get_user_roles_permissions
result[role.name] = []
AttributeError: 'NoneType' object has no attribute 'name'

I think it's important to mention that are using Google/ Dex for authentication so we SupersetSecurityManager override with CustomSsoSecurityManager based on this doc

How to reproduce the bug

1. Go to a randomly superset's dashboard page
2. Copy this link
3. Log out from your account
4. Go to the copied link

Screenshots/recordings

No response

Superset version

3.1.2

Python version

3.10

Node version

16

Browser

Chrome

Additional context

No response

Checklist

• I have searched Superset docs and Slack and didn't find a solution to my problem.
• I have searched the GitHub issue tracker and didn't find a similar bug report.
• I have checked Superset's logs for errors and if I found a relevant Python stacktrace, I included it here as text in the "additional context" section.

[rusackas]

Are you actually seeing a 500 in your logs? This seems truthful. According to your error, it sounds like on line 420, you should throw a 403 and/or redirect to the login page.

[theromsh]

Are you actually seeing a 500 in your logs? This seems truthful. According to your error, it sounds like on line 420, you should throw a 403 and/or redirect to the login page.

@rusackas It's within flask_appbuilder python package. I can't control that.

[rusackas]

Ahh... then perhaps @dpgaspar will have some insight.

[meska]

I was able to pass this error with
AUTH_ROLE_PUBLIC = "Gamma"
in superset_config.py
then the guest user must have that role