mirror of
https://github.com/nottinghamtec/PyRIGS.git
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97 lines
3.0 KiB
Python
97 lines
3.0 KiB
Python
import re
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import urllib.request, urllib.error, urllib.parse
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from io import BytesIO
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from django.db.models.signals import post_save
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from PyPDF2 import PdfFileReader, PdfFileMerger
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from django.conf import settings
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from django.contrib.staticfiles.storage import staticfiles_storage
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from django.core.mail import EmailMessage, EmailMultiAlternatives
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from django.template.loader import get_template
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from premailer import Premailer
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from z3c.rml import rml2pdf
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from RIGS import models
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def send_eventauthorisation_success_email(instance):
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# Generate PDF first to prevent context conflicts
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context = {
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'object': instance.event,
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'fonts': {
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'opensans': {
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'regular': 'RIGS/static/fonts/OPENSANS-REGULAR.TTF',
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'bold': 'RIGS/static/fonts/OPENSANS-BOLD.TTF',
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}
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},
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'receipt': True,
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'current_user': False,
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}
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template = get_template('RIGS/event_print.xml')
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merger = PdfFileMerger()
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rml = template.render(context)
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buffer = rml2pdf.parseString(rml)
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merger.append(PdfFileReader(buffer))
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buffer.close()
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terms = urllib.request.urlopen(settings.TERMS_OF_HIRE_URL)
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merger.append(BytesIO(terms.read()))
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merged = BytesIO()
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merger.write(merged)
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# Produce email content
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context = {
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'object': instance,
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}
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if instance.email == instance.event.person.email:
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context['to_name'] = instance.event.person.name
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subject = "N%05d | %s - Event Authorised" % (instance.event.pk, instance.event.name)
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client_email = EmailMultiAlternatives(
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subject,
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get_template("RIGS/eventauthorisation_client_success.txt").render(context),
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to=[instance.email],
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reply_to=[settings.AUTHORISATION_NOTIFICATION_ADDRESS],
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)
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css = staticfiles_storage.path('css/email.css')
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html = Premailer(get_template("RIGS/eventauthorisation_client_success.html").render(context),
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external_styles=css).transform()
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client_email.attach_alternative(html, 'text/html')
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escapedEventName = re.sub('[^a-zA-Z0-9 \n\.]', '', instance.event.name)
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client_email.attach('N%05d - %s - CONFIRMATION.pdf' % (instance.event.pk, escapedEventName),
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merged.getvalue(),
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'application/pdf'
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)
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if instance.event.mic:
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mic_email_address = instance.event.mic.email
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else:
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mic_email_address = settings.AUTHORISATION_NOTIFICATION_ADDRESS
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mic_email = EmailMessage(
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subject,
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get_template("RIGS/eventauthorisation_mic_success.txt").render(context),
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to=[mic_email_address]
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)
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# Now we have both emails successfully generated, send them out
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client_email.send(fail_silently=True)
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mic_email.send(fail_silently=True)
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def on_revision_commit(sender, instance, created, **kwargs):
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if created:
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send_eventauthorisation_success_email(instance)
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post_save.connect(on_revision_commit, sender=models.EventAuthorisation)
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