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authentik/authentik/core/expression.py

48 lines
1.6 KiB
Python

"""Property Mapping Evaluator"""
from traceback import format_tb
from typing import Optional
from django.http import HttpRequest
from guardian.utils import get_anonymous_user
from authentik.core.models import PropertyMapping, User
from authentik.events.models import Event, EventAction
from authentik.lib.expression.evaluator import BaseEvaluator
from authentik.policies.types import PolicyRequest
class PropertyMappingEvaluator(BaseEvaluator):
"""Custom Evalautor that adds some different context variables."""
def set_context(
self,
user: Optional[User],
request: Optional[HttpRequest],
mapping: PropertyMapping,
**kwargs,
):
"""Update context with context from PropertyMapping's evaluate"""
req = PolicyRequest(user=get_anonymous_user())
req.obj = mapping
if user:
req.user = user
self._context["user"] = user
if request:
req.http_request = request
self._context["request"] = req
self._context.update(**kwargs)
def handle_error(self, exc: Exception, expression_source: str):
"""Exception Handler"""
error_string = "\n".join(format_tb(exc.__traceback__) + [str(exc)])
event = Event.new(
EventAction.PROPERTY_MAPPING_EXCEPTION,
expression=expression_source,
message=error_string,
)
if "request" in self._context:
req: PolicyRequest = self._context["request"]
event.from_http(req.http_request, req.user)
return
event.save()