81 lines
2.8 KiB
Python
81 lines
2.8 KiB
Python
"""passbook administration overview"""
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import time
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from collections import Counter
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from datetime import timedelta
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from typing import Dict, List
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from django.db.models import Count, ExpressionWrapper, F
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from django.db.models.fields import DurationField
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from django.db.models.functions import ExtractHour
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from django.http import response
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from django.utils.timezone import now
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from drf_yasg2.utils import swagger_auto_schema
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from rest_framework.fields import SerializerMethodField
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from rest_framework.permissions import IsAdminUser
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from rest_framework.request import Request
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from rest_framework.response import Response
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from rest_framework.serializers import Serializer
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from rest_framework.viewsets import ViewSet
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from passbook.audit.models import Event, EventAction
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class AdministrationMetricsSerializer(Serializer):
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"""Overview View"""
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logins_per_1h = SerializerMethodField()
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logins_failed_per_1h = SerializerMethodField()
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def get_events_per_1h(self, action: str) -> List[Dict[str, int]]:
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"""Get event count by hour in the last day, fill with zeros"""
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date_from = now() - timedelta(days=1)
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result = (
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Event.objects.filter(action=action, created__gte=date_from)
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.annotate(
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age=ExpressionWrapper(
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now() - F("created"), output_field=DurationField()
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)
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)
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.annotate(age_hours=ExtractHour("age"))
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.values("age_hours")
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.annotate(count=Count("pk"))
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.order_by("age_hours")
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)
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data = Counter({d["age_hours"]: d["count"] for d in result})
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results = []
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_now = now()
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for hour in range(0, -24, -1):
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results.append(
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{
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"x": time.mktime((_now + timedelta(hours=hour)).timetuple()) * 1000,
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"y": data[hour * -1],
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}
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)
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return results
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def get_logins_per_1h(self, _):
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"""Get successful logins per hour for the last 24 hours"""
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return self.get_events_per_1h(EventAction.LOGIN)
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def get_logins_failed_per_1h(self, _):
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"""Get failed logins per hour for the last 24 hours"""
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return self.get_events_per_1h(EventAction.LOGIN_FAILED)
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def create(self, request: Request) -> response:
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raise NotImplementedError
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def update(self, request: Request) -> Response:
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raise NotImplementedError
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class AdministrationMetricsViewSet(ViewSet):
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"""Return single instance of AdministrationMetricsSerializer"""
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permission_classes = [IsAdminUser]
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@swagger_auto_schema(responses={200: AdministrationMetricsSerializer(many=True)})
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def list(self, request: Request) -> Response:
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"""Return single instance of AdministrationMetricsSerializer"""
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serializer = AdministrationMetricsSerializer(True)
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return Response(serializer.data)
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