*: providers and sources -> channels, PolicyModel to PolicyBindingModel that uses custom M2M through

passbook/policies/models.py

@@ -1,9 +1,30 @@
 """Policy base models"""
 from django.db import models
 from django.utils.translation import gettext_lazy as _
+from model_utils.managers import InheritanceManager
 
-from passbook.core.models import Policy
-from passbook.lib.models import UUIDModel
+from passbook.lib.models import CreatedUpdatedModel, UUIDModel
+from passbook.policies.exceptions import PolicyException
+from passbook.policies.types import PolicyRequest, PolicyResult
+
+
+class Policy(UUIDModel, CreatedUpdatedModel):
+    """Policies which specify if a user is authorized to use an Application. Can be overridden by
+    other types to add other fields, more logic, etc."""
+
+    name = models.TextField(blank=True, null=True)
+    negate = models.BooleanField(default=False)
+    order = models.IntegerField(default=0)
+    timeout = models.IntegerField(default=30)
+
+    objects = InheritanceManager()
+
+    def __str__(self):
+        return f"Policy {self.name}"
+
+    def passes(self, request: PolicyRequest) -> PolicyResult:
+        """Check if user instance passes this policy"""
+        raise PolicyException()
 
 
 class PolicyBindingModel(models.Model):