7ebc9cbbf7
- swaps out `django-push-notifications` for [`fcm-django`](https://github.com/grafana/fcm-django). Again.. this is a fork of the parent repo for exactly the same reason.. the migrations point to `auth_user` without letting us use our own user model, this has been patched in the `grafana` fork. The reason why we are using `fcm-django` vs `django-push-notifications` is that the latter does not support the new FCM API, only the "legacy" API. The legacy FCM API does not support certain push notification settings that we would like to use. - modifies the iOS/Android specific push notification settings - adds a `flower` pod in the `docker-compose-developer.yml`, useful for debugging tasks locally - sets the mobile app verification token TTL to 5 minutes when developing locally. The default of 1 minute makes working with device emulators really tricky.. This PR also swaps out the base image in `engine/Dockerfile` from `python:3.9-alpine3.16` to `python:3.9-slim-buster`. As to why.. in short, with the introduction of the `fcm-django` library there is now a peer-dependency on [`grpcio`](https://github.com/grpc/grpc) (which is used by `firebase_admin`.. which I am using in this PR to interact directly with Firebase Cloud Messaging (FCM)). `grpcio` does not publish wheels (read: compiled binaries) for the Alpine distro. It does publish wheels for Debian and hence `pip install -r requirements.txt` does not need to build this library from the source distribution. This is a [known "issue"](https://github.com/grpc/grpc/issues/22815#issuecomment-1107874367) and the recommended solution in the community is to.. not use alpine. These were the numbers, when building the image locally, in terms of image size and build time: | | Local image size (uncompressed | Build time (may differ based on your network speed) | | ------------------------- | -------------------------------------- | ---------- | | `python:3.9-alpine3.16` | 785MB | 320s | | `python:3.9-slim-buster` | 1.05GB | 90s | Co-authored-by: Salvatore Giordano <salvatoregiordanoo@gmail.com>
67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
import json
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from django.conf import settings
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from fcm_django.models import FCMDevice
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from apps.base.messaging import BaseMessagingBackend
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from apps.mobile_app.tasks import notify_user_async
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class MobileAppBackend(BaseMessagingBackend):
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backend_id = "MOBILE_APP"
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label = "Mobile app"
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short_label = "Mobile app"
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available_for_use = True
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template_fields = ["title"]
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def generate_user_verification_code(self, user):
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from apps.mobile_app.models import MobileAppVerificationToken
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# remove existing token before creating a new one
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MobileAppVerificationToken.objects.filter(user=user).delete()
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_, token = MobileAppVerificationToken.create_auth_token(user, user.organization)
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return json.dumps(
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{
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"token": token,
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"oncall_api_url": settings.BASE_URL,
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}
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)
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def unlink_user(self, user):
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from apps.mobile_app.models import MobileAppAuthToken
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token = MobileAppAuthToken.objects.get(user=user)
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token.delete()
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# delete push notification related info for user
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FCMDevice.objects.filter(user=user).delete()
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def serialize_user(self, user):
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from apps.mobile_app.models import MobileAppAuthToken
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return {"connected": MobileAppAuthToken.objects.filter(user=user).exists()}
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def notify_user(self, user, alert_group, notification_policy, critical=False):
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notify_user_async.delay(
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user_pk=user.pk,
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alert_group_pk=alert_group.pk,
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notification_policy_pk=notification_policy.pk,
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critical=critical,
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)
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class MobileAppCriticalBackend(MobileAppBackend):
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"""
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This notification backend should not exist, criticality of the push notification should be an option passed to the
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MobileAppBackend messaging backend.
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TODO: add ability to pass options to messaging backends both on backend and frontend, delete this backend after that
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"""
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backend_id = "MOBILE_APP_CRITICAL"
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label = "Mobile app critical"
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short_label = "Mobile app critical"
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template_fields = []
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def notify_user(self, user, alert_group, notification_policy, critical=True):
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super().notify_user(user, alert_group, notification_policy, critical)
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