policies/dummy: separate dummy policy from core into app

passbook/policies/dummy/api.py

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+"""Dummy Policy API Views"""
+from rest_framework.serializers import ModelSerializer
+from rest_framework.viewsets import ModelViewSet
+
+from passbook.policies.dummy.models import DummyPolicy
+from passbook.policies.forms import GENERAL_SERIALIZER_FIELDS
+
+
+class DummyPolicySerializer(ModelSerializer):
+    """Dummy Policy Serializer"""
+
+    class Meta:
+        model = DummyPolicy
+        fields = GENERAL_SERIALIZER_FIELDS + ["result", "wait_min", "wait_max"]
+
+
+class DummyPolicyViewSet(ModelViewSet):
+    """Dummy Viewset"""
+
+    queryset = DummyPolicy.objects.all()
+    serializer_class = DummyPolicySerializer

passbook/policies/dummy/apps.py

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+"""Passbook policy dummy app config"""
+
+from django.apps import AppConfig
+
+
+class PassbookPolicyDummyConfig(AppConfig):
+    """Passbook policy_dummy app config"""
+
+    name = "passbook.policies.dummy"
+    label = "passbook_policies_dummy"
+    verbose_name = "passbook Policies.Dummy"

passbook/policies/dummy/forms.py

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+"""passbook Policy forms"""
+
+from django import forms
+from django.utils.translation import gettext as _
+
+from passbook.policies.dummy.models import DummyPolicy
+from passbook.policies.forms import GENERAL_FIELDS
+
+
+class DummyPolicyForm(forms.ModelForm):
+    """DummyPolicyForm Form"""
+
+    class Meta:
+
+        model = DummyPolicy
+        fields = GENERAL_FIELDS + ["result", "wait_min", "wait_max"]
+        widgets = {
+            "name": forms.TextInput(),
+        }
+        labels = {"result": _("Allow user")}

passbook/policies/dummy/migrations/0001_initial.py

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+# Generated by Django 3.0.5 on 2020-05-10 00:08
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ("passbook_core", "0013_delete_debugpolicy"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="DummyPolicy",
+            fields=[
+                (
+                    "policy_ptr",
+                    models.OneToOneField(
+                        auto_created=True,
+                        on_delete=django.db.models.deletion.CASCADE,
+                        parent_link=True,
+                        primary_key=True,
+                        serialize=False,
+                        to="passbook_core.Policy",
+                    ),
+                ),
+                ("result", models.BooleanField(default=False)),
+                ("wait_min", models.IntegerField(default=5)),
+                ("wait_max", models.IntegerField(default=30)),
+            ],
+            options={
+                "verbose_name": "Dummy Policy",
+                "verbose_name_plural": "Dummy Policies",
+            },
+            bases=("passbook_core.policy",),
+        ),
+    ]

passbook/policies/dummy/models.py

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+"""Dummy policy"""
+from random import SystemRandom
+from time import sleep
+
+from django.db import models
+from django.utils.translation import gettext_lazy as _
+from structlog import get_logger
+
+from passbook.core.models import Policy
+from passbook.policies.types import PolicyRequest, PolicyResult
+
+LOGGER = get_logger()
+
+
+class DummyPolicy(Policy):
+    """Policy used for debugging the PolicyEngine. Returns a fixed result,
+    but takes a random time to process."""
+
+    result = models.BooleanField(default=False)
+    wait_min = models.IntegerField(default=5)
+    wait_max = models.IntegerField(default=30)
+
+    form = "passbook.policies.dummy.forms.DummyPolicyForm"
+
+    def passes(self, request: PolicyRequest) -> PolicyResult:
+        """Wait random time then return result"""
+        wait = SystemRandom().randrange(self.wait_min, self.wait_max)
+        LOGGER.debug("Policy waiting", policy=self, delay=wait)
+        sleep(wait)
+        return PolicyResult(self.result, "dummy")
+
+    class Meta:
+
+        verbose_name = _("Dummy Policy")
+        verbose_name_plural = _("Dummy Policies")