44 lines
1.5 KiB
Python
44 lines
1.5 KiB
Python
"""passbook access helper classes"""
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from typing import List, Tuple
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from django.contrib import messages
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from django.http import HttpRequest
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from django.utils.translation import gettext as _
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from structlog import get_logger
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from passbook.core.models import Application, Provider, User
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from passbook.policies.engine import PolicyEngine
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LOGGER = get_logger()
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class AccessMixin:
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"""Mixin class for usage in Authorization views.
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Provider functions to check application access, etc"""
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# request is set by view but since this Mixin has no base class
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request: HttpRequest = None
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def provider_to_application(self, provider: Provider) -> Application:
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"""Lookup application assigned to provider, throw error if no application assigned"""
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try:
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return provider.application
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except Application.DoesNotExist as exc:
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messages.error(
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self.request,
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_(
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'Provider "%(name)s" has no application assigned'
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% {"name": provider}
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),
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)
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raise exc
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def user_has_access(
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self, application: Application, user: User
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) -> Tuple[bool, List[str]]:
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"""Check if user has access to application."""
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LOGGER.debug("Checking permissions", user=user, application=application)
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policy_engine = PolicyEngine(application.policies.all(), user, self.request)
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policy_engine.build()
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return policy_engine.result
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