65 lines
2.1 KiB
Python
65 lines
2.1 KiB
Python
import logging
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from smtplib import SMTPException
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from threading import Thread
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from django.db import close_old_connections, transaction
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from django.template.loader import render_to_string
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from django.utils import timezone
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from birdsong.models import Campaign, CampaignStatus, Contact
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from birdsong.utils import send_mass_html_mail
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from . import BaseEmailBackend
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logger = logging.getLogger(__name__)
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class SendCampaignThread(Thread):
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def __init__(self, campaign_pk, contact_pks, messages):
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super().__init__()
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self.campaign_pk = campaign_pk
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self.contact_pks = contact_pks
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self.messages = messages
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def run(self):
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try:
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logger.info(f"Sending {len(self.messages)} emails")
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send_mass_html_mail(self.messages)
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logger.info("Emails finished sending")
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with transaction.atomic():
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Campaign.objects.filter(pk=self.campaign_pk).update(
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status=CampaignStatus.SENT,
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sent_date=timezone.now(),
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)
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fresh_contacts = Contact.objects.filter(
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pk__in=self.contact_pks)
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Campaign.objects.get(
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pk=self.campaign_pk).receipts.add(*fresh_contacts)
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except SMTPException:
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logger.exception(f"Problem sending campaign: {self.campaign_pk}")
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self.campaign.status = CampaignStatus.FAILED
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finally:
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close_old_connections()
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class SMTPEmailBackend(BaseEmailBackend):
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def send_campaign(self, request, campaign, contacts):
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messages = []
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for contact in contacts:
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content = render_to_string(
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campaign.get_template(request),
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campaign.get_context(request, contact),
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)
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messages.append({
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'subject': campaign.subject,
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'body': content,
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'from_email': self.from_email,
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'to': [contact.email],
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'reply_to': [self.reply_to],
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})
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campaign_thread = SendCampaignThread(
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campaign.pk, [c.pk for c in contacts], messages)
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campaign_thread.start()
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