src/contact/forms.py

   1 import json
   2 from django.contrib.sites.models import Site
   3 from django.core.exceptions import ValidationError
   4 from django.core.files.uploadedfile import UploadedFile
   5 from django.core.mail import send_mail, mail_managers
   6 from django.core.validators import validate_email
   7 from django import forms
   8 from django.template.loader import render_to_string
   9 from django.template import RequestContext
  10 from django.urls import reverse
  11 from django.utils.translation import ugettext_lazy as _
  12
  13
  14 contact_forms = {}
  15 admin_list_width = 0
  16
  17
  18 class ContactFormMeta(forms.Form.__class__):
  19     def __new__(cls, name, bases, attrs):
  20         global admin_list_width
  21         model = super(ContactFormMeta, cls).__new__(cls, name, bases, attrs)
  22         assert model.form_tag not in contact_forms, 'Duplicate form_tag.'
  23         if model.admin_list:
  24             admin_list_width = max(admin_list_width, len(model.admin_list))
  25         contact_forms[model.form_tag] = model
  26         return model
  27
  28
  29 class ContactForm(forms.Form):
  30     """Subclass and define some fields."""
  31     __metaclass__ = ContactFormMeta
  32
  33     form_tag = None
  34     form_title = _('Contact form')
  35     submit_label = _('Submit')
  36     admin_list = None
  37     result_page = False
  38
  39     required_css_class = 'required'
  40     # a subclass has to implement this field, but doing it here breaks the order
  41     contact = NotImplemented
  42
  43     def save(self, request, formsets=None):
  44         from .models import Attachment, Contact
  45         body = {}
  46         for name, value in self.cleaned_data.items():
  47             if not isinstance(value, UploadedFile) and name != 'contact':
  48                 body[name] = value
  49
  50         for formset in formsets or []:
  51             for f in formset.forms:
  52                 sub_body = {}
  53                 for name, value in f.cleaned_data.items():
  54                     if not isinstance(value, UploadedFile):
  55                         sub_body[name] = value
  56                 if sub_body:
  57                     body.setdefault(f.form_tag, []).append(sub_body)
  58
  59         contact = Contact.objects.create(
  60             body=json.dumps(body),
  61             ip=request.META['REMOTE_ADDR'],
  62             contact=self.cleaned_data['contact'],
  63             form_tag=self.form_tag)
  64         for name, value in self.cleaned_data.items():
  65             if isinstance(value, UploadedFile):
  66                 attachment = Attachment(contact=contact, tag=name)
  67                 attachment.file.save(value.name, value)
  68                 attachment.save()
  69
  70         site = Site.objects.get_current()
  71         dictionary = {
  72             'form_tag': self.form_tag,
  73             'site_name': getattr(self, 'site_name', site.name),
  74             'site_domain': getattr(self, 'site_domain', site.domain),
  75             'contact': contact,
  76         }
  77         context = RequestContext(request)
  78         mail_managers_subject = render_to_string([
  79                 'contact/%s/mail_managers_subject.txt' % self.form_tag,
  80                 'contact/mail_managers_subject.txt',
  81             ], dictionary, context).strip()
  82         mail_managers_body = render_to_string([
  83                 'contact/%s/mail_managers_body.txt' % self.form_tag,
  84                 'contact/mail_managers_body.txt',
  85             ], dictionary, context)
  86         mail_managers(mail_managers_subject, mail_managers_body, fail_silently=True)
  87
  88         try:
  89             validate_email(contact.contact)
  90         except ValidationError:
  91             pass
  92         else:
  93             mail_subject = render_to_string([
  94                     'contact/%s/mail_subject.txt' % self.form_tag,
  95                     'contact/mail_subject.txt',
  96                 ], dictionary, context).strip()
  97             if self.result_page:
  98                 mail_body = render_to_string(
  99                     'contact/%s/results_email.txt' % contact.form_tag,
 100                     {
 101                         'contact': contact,
 102                         'results': self.results(contact),
 103                     }, context)
 104             else:
 105                 mail_body = render_to_string([
 106                         'contact/%s/mail_body.txt' % self.form_tag,
 107                         'contact/mail_body.txt',
 108                     ], dictionary, context)
 109             send_mail(mail_subject, mail_body, 'no-reply@%s' % site.domain, [contact.contact], fail_silently=True)
 110
 111         return contact