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https://github.com/PostHog/posthog.git
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1d4187923b
* Refactor `AvailableFeature` from strings to an enum everywhere * Fix circular dependency and type
94 lines
3.2 KiB
Python
94 lines
3.2 KiB
Python
from typing import Any, List, Optional, cast
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import requests
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from django.contrib.auth import get_user_model
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from django.db import models
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from django.db.models.signals import post_save
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from django.dispatch.dispatcher import receiver
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from django.utils import timezone
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from rest_framework import exceptions, status
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from posthog.celery import sync_all_organization_available_features
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from posthog.constants import AvailableFeature
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class LicenseError(exceptions.APIException):
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"""
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Exception raised for licensing errors.
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"""
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default_type = "license_error"
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default_code = "license_error"
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status_code = status.HTTP_400_BAD_REQUEST
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default_detail = "There was a problem with your current license."
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def __init__(self, code, detail):
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self.code = code
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self.detail = exceptions._get_error_details(detail, code)
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class LicenseManager(models.Manager):
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def create(self, *args: Any, **kwargs: Any) -> "License":
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validate = requests.post("https://license.posthog.com/licenses/activate", data={"key": kwargs["key"]})
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resp = validate.json()
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if not validate.ok:
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raise LicenseError(resp["code"], resp["detail"])
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kwargs["valid_until"] = resp["valid_until"]
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kwargs["plan"] = resp["plan"]
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kwargs["max_users"] = resp.get("max_users", 0)
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return cast(License, super().create(*args, **kwargs))
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def first_valid(self) -> Optional["License"]:
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return cast(Optional[License], (self.filter(valid_until__gte=timezone.now()).first()))
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class License(models.Model):
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objects: LicenseManager = LicenseManager()
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created_at: models.DateTimeField = models.DateTimeField(auto_now_add=True)
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plan: models.CharField = models.CharField(max_length=200)
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valid_until: models.DateTimeField = models.DateTimeField()
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key: models.CharField = models.CharField(max_length=200)
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max_users: models.IntegerField = models.IntegerField(default=None, null=True) # None = no restriction
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ENTERPRISE_PLAN = "enterprise"
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ENTERPRISE_FEATURES = [
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AvailableFeature.ZAPIER,
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AvailableFeature.ORGANIZATIONS_PROJECTS,
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AvailableFeature.GOOGLE_LOGIN,
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AvailableFeature.SAML,
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AvailableFeature.DASHBOARD_COLLABORATION,
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AvailableFeature.INGESTION_TAXONOMY,
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] # Base premium features
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PLANS = {ENTERPRISE_PLAN: ENTERPRISE_FEATURES}
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@property
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def available_features(self) -> List[AvailableFeature]:
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return self.PLANS.get(self.plan, [])
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def get_licensed_users_available() -> Optional[int]:
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"""
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Returns the number of user slots available that can be created based on the instance's current license.
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Not relevant for cloud users.
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`None` means unlimited users.
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"""
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license = License.objects.first_valid()
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from posthog.models import OrganizationInvite
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if license:
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if license.max_users is None:
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return None
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users_left = license.max_users - get_user_model().objects.count() - OrganizationInvite.objects.count()
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return max(users_left, 0)
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return None
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@receiver(post_save, sender=License)
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def license_saved(sender, instance, created, raw, using, **kwargs):
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sync_all_organization_available_features()
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