Files

92 lines
3.8 KiB
Python

from django.conf import settings
from django.contrib.contenttypes.models import ContentType
from django.core.mail import send_mail
from django.utils import timezone
from django.utils.translation import gettext as _
from core.choices import JobIntervalChoices
from extras.models import Notification
from netbox.jobs import JobRunner, system_job
from netbox_slm.events import LICENSE_EXPIRING
from netbox_slm.models import SoftwareLicense, SoftwareLicenseNotificationLog
@system_job(interval=JobIntervalChoices.INTERVAL_DAILY)
class LicenseExpirationNotificationJob(JobRunner):
class Meta:
name = "Software License Expiration Notifications"
def run(self, *args, **kwargs):
today = timezone.localdate()
licenses = SoftwareLicense.objects.filter(
expiration_notifications_enabled=True,
lifetime=False,
expiration_date__gte=today,
).prefetch_related("subscriptions__user")
for license in licenses:
due_dates = [date for date in license.get_notification_dates() if date <= today]
if not due_dates:
continue
for subscription in license.subscriptions.all():
user = subscription.user
if not user.is_active:
continue
# If notifications were enabled late, send only the most recent reminder instead of one per elapsed
# interval. Normally this still produces one reminder at each configured threshold.
self._notify(license, user, max(due_dates))
def _notify(self, license, user, notification_date):
log = SoftwareLicenseNotificationLog.objects.get_or_create(
license=license,
user=user,
expiration_date=license.expiration_date,
notification_date=notification_date,
)[0]
now = timezone.now()
object_type = ContentType.objects.get_for_model(license)
Notification.objects.update_or_create(
object_type=object_type,
object_id=license.pk,
user=user,
defaults={
"created": now,
"object_repr": Notification.get_object_repr(license),
"event_type": LICENSE_EXPIRING,
"read": None,
},
)
log.netbox_sent_at = now
log.save(update_fields=("netbox_sent_at",))
self.logger.info(f"Created NetBox expiration notification for license {license.pk} and user {user}")
if license.email_notifications and user.email:
subject = _("License %(license)s expires on %(date)s") % {
"license": license,
"date": license.expiration_date,
}
body = _(
"The software license '%(license)s' for '%(product)s' expires on %(date)s."
) % {
"license": license,
"product": license.software_product,
"date": license.expiration_date,
}
if license.tenant:
body += "\n" + _("Tenant: %(tenant)s") % {"tenant": license.tenant}
if license.provider_portal_url:
body += "\n" + _("Provider portal: %(url)s") % {"url": license.provider_portal_url}
try:
from_email = settings.SERVER_EMAIL or settings.EMAIL_HOST_USER
send_mail(subject, body, from_email, [user.email], fail_silently=False)
except Exception:
self.logger.exception(f"Failed to send expiration email for license {license.pk} to user {user}")
else:
log.email_sent_at = now
log.save(update_fields=("email_sent_at",))
self.logger.info(f"Sent expiration email for license {license.pk} to user {user}")