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from typing import Callable, Optional
from allauth.account.adapter import get_adapter as get_account_adapter
from allauth.account.internal.flows.login import record_authentication
from allauth.core import context, ratelimit
from allauth.mfa import signals
from allauth.mfa.models import Authenticator
def delete_dangling_recovery_codes(user) -> Optional[Authenticator]:
deleted_authenticator = None
qs = Authenticator.objects.filter(user=user)
if not qs.exclude(type=Authenticator.Type.RECOVERY_CODES).exists():
deleted_authenticator = qs.first()
qs.delete()
return deleted_authenticator
def delete_and_cleanup(request, authenticator) -> None:
authenticator.delete()
rc_auth = delete_dangling_recovery_codes(authenticator.user)
for auth in [authenticator, rc_auth]:
if auth:
signals.authenticator_removed.send(
sender=Authenticator,
request=request,
user=request.user,
authenticator=auth,
)
def post_authentication(
request,
authenticator: Authenticator,
reauthenticated: bool = False,
passwordless: bool = False,
) -> None:
authenticator.record_usage()
extra_data = {
"id": authenticator.pk,
"type": authenticator.type,
}
if reauthenticated:
extra_data["reauthenticated"] = True
if passwordless:
extra_data["passwordless"] = True
record_authentication(request, "mfa", **extra_data)
def check_rate_limit(user) -> Callable[[], None]:
key = f"mfa-auth-user-{str(user.pk)}"
if not ratelimit.consume(
context.request,
action="login_failed",
key=key,
):
raise get_account_adapter().validation_error("too_many_login_attempts")
return lambda: ratelimit.clear(context.request, action="login_failed", key=key)
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