# -*- coding: utf-8 -*- # Copyright: (c) 2008, Jarek Zgoda __revision__ = '$Id: models.py 28 2009-10-22 15:03:02Z jarek.zgoda $' import re from django.db import models from django.core.urlresolvers import reverse from django.core.mail import send_mail from django.conf import settings from django.template import loader, Context from django.contrib.sites.models import Site from django.contrib.contenttypes.models import ContentType from django.contrib.contenttypes.fields import GenericForeignKey from django.utils.translation import ugettext_lazy as _ from django.utils.timezone import now from confirmation.util import get_status_field from zerver.lib.utils import generate_random_token from zerver.models import PreregistrationUser, EmailChangeStatus from typing import Optional, Union, Any, Text B16_RE = re.compile('^[a-f0-9]{40}$') def check_key_is_valid(creation_key): # type: (Text) -> bool if not RealmCreationKey.objects.filter(creation_key=creation_key).exists(): return False days_sofar = (now() - RealmCreationKey.objects.get(creation_key=creation_key).date_created).days # Realm creation link expires after settings.REALM_CREATION_LINK_VALIDITY_DAYS if days_sofar <= settings.REALM_CREATION_LINK_VALIDITY_DAYS: return True return False def generate_key(): # type: () -> Text return generate_random_token(40) def generate_activation_url(key, host=None): # type: (Text, Optional[str]) -> Text if host is None: host = settings.EXTERNAL_HOST return u'%s%s%s' % (settings.EXTERNAL_URI_SCHEME, host, reverse('confirmation.views.confirm', kwargs={'confirmation_key': key})) def generate_realm_creation_url(): # type: () -> Text key = generate_key() RealmCreationKey.objects.create(creation_key=key, date_created=now()) return u'%s%s%s' % (settings.EXTERNAL_URI_SCHEME, settings.EXTERNAL_HOST, reverse('zerver.views.create_realm', kwargs={'creation_key': key})) class ConfirmationManager(models.Manager): def confirm(self, confirmation_key): # type: (str) -> Union[bool, PreregistrationUser, EmailChangeStatus] if B16_RE.search(confirmation_key): try: confirmation = self.get(confirmation_key=confirmation_key) except self.model.DoesNotExist: return False max_days = self.get_link_validity_in_days() time_elapsed = now() - confirmation.date_sent if time_elapsed.total_seconds() > max_days * 24 * 3600: return False obj = confirmation.content_object status_field = get_status_field(obj._meta.app_label, obj._meta.model_name) setattr(obj, status_field, getattr(settings, 'STATUS_ACTIVE', 1)) obj.save() return obj return False def get_link_for_object(self, obj, host=None): # type: (Union[ContentType, int], Optional[str]) -> Text key = generate_key() self.create(content_object=obj, date_sent=now(), confirmation_key=key) return self.get_activation_url(key, host=host) def get_activation_url(self, confirmation_key, host=None): # type: (Text, Optional[str]) -> Text return generate_activation_url(confirmation_key, host=host) def get_link_validity_in_days(self): # type: () -> int return getattr(settings, 'EMAIL_CONFIRMATION_DAYS', 10) def send_confirmation(self, obj, email_address, additional_context=None, subject_template_path=None, body_template_path=None, html_body_template_path=None, host=None, custom_body=None): # type: (ContentType, Text, Optional[Dict[str, Any]], Optional[str], Optional[str], Optional[str], Optional[str], Optional[str]) -> Confirmation confirmation_key = generate_key() current_site = Site.objects.get_current() activate_url = self.get_activation_url(confirmation_key, host=host) context = Context({ 'activate_url': activate_url, 'current_site': current_site, 'confirmation_key': confirmation_key, 'target': obj, 'days': getattr(settings, 'EMAIL_CONFIRMATION_DAYS', 10), 'custom_body': custom_body, }) if additional_context is not None: context.update(additional_context) if obj.realm is not None and obj.realm.is_zephyr_mirror_realm: template_name = "mituser" else: template_name = obj._meta.model_name templates = [ 'confirmation/%s_confirmation_email.subject' % (template_name,), 'confirmation/confirmation_email.subject', ] if subject_template_path: template = loader.get_template(subject_template_path) else: template = loader.select_template(templates) subject = template.render(context).strip().replace(u'\n', u' ') # no newlines, please templates = [ 'confirmation/%s_confirmation_email.txt' % (template_name,), 'confirmation/confirmation_email.txt', ] if body_template_path: template = loader.get_template(body_template_path) else: template = loader.select_template(templates) if html_body_template_path: html_template = loader.get_template(html_body_template_path) else: html_template = loader.get_template('confirmation/%s_confirmation_email.html' % (template_name,)) body = template.render(context) if html_template: html_content = html_template.render(context) send_mail(subject, body, settings.DEFAULT_FROM_EMAIL, [email_address], html_message=html_content) return self.create(content_object=obj, date_sent=now(), confirmation_key=confirmation_key) class EmailChangeConfirmationManager(ConfirmationManager): def get_activation_url(self, key, host=None): # type: (Text, Optional[str]) -> Text if host is None: # This will raise exception if the key doesn't exist. host = self.get(confirmation_key=key).content_object.realm.host return u'%s%s%s' % (settings.EXTERNAL_URI_SCHEME, host, reverse('zerver.views.user_settings.confirm_email_change', kwargs={'confirmation_key': key})) def get_link_validity_in_days(self): # type: () -> int return settings.EMAIL_CHANGE_CONFIRMATION_DAYS class Confirmation(models.Model): content_type = models.ForeignKey(ContentType) object_id = models.PositiveIntegerField() content_object = GenericForeignKey('content_type', 'object_id') date_sent = models.DateTimeField(_('sent')) confirmation_key = models.CharField(_('activation key'), max_length=40) objects = ConfirmationManager() class Meta(object): verbose_name = _('confirmation email') verbose_name_plural = _('confirmation emails') def __unicode__(self): # type: () -> Text return _('confirmation email for %s') % (self.content_object,) class EmailChangeConfirmation(Confirmation): class Meta(object): proxy = True objects = EmailChangeConfirmationManager() class RealmCreationKey(models.Model): creation_key = models.CharField(_('activation key'), max_length=40) date_created = models.DateTimeField(_('created'), default=now)