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# Copyright (c) 2011, 2012 Free Software Foundation
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Copyright (c) 2011, 2012 Free Software Foundation
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# This project incorporates work covered by the following copyright and permission notice:
# Copyright (c) 2009, Julien Fache
# All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of the author nor the names of other
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
# OF THE POSSIBILITY OF SUCH DAMAGE.
"""Moderator of Gstudio comments"""
from django.conf import settings
from django.template import Context
from django.template import loader
from django.core.mail import send_mail
from django.core.mail import EmailMessage
from django.contrib.sites.models import Site
from django.utils.translation import activate
from django.utils.translation import get_language
from django.utils.translation import ugettext_lazy as _
from django.contrib.comments.moderation import CommentModerator
from gstudio.settings import PROTOCOL
from gstudio.settings import MAIL_COMMENT_REPLY
from gstudio.settings import MAIL_COMMENT_AUTHORS
from gstudio.settings import AUTO_MODERATE_COMMENTS
from gstudio.settings import AUTO_CLOSE_COMMENTS_AFTER
from gstudio.settings import MAIL_COMMENT_NOTIFICATION_RECIPIENTS
from gstudio.settings import SPAM_CHECKER_BACKENDS
from gstudio.spam_checker import check_is_spam
class NodetypeCommentModerator(CommentModerator):
"""Moderate the comment of Nodes"""
email_reply = MAIL_COMMENT_REPLY
email_authors = MAIL_COMMENT_AUTHORS
enable_field = 'comment_enabled'
auto_close_field = 'start_publication'
close_after = AUTO_CLOSE_COMMENTS_AFTER
spam_checker_backends = SPAM_CHECKER_BACKENDS
auto_moderate_comments = AUTO_MODERATE_COMMENTS
mail_comment_notification_recipients = MAIL_COMMENT_NOTIFICATION_RECIPIENTS
def email(self, comment, content_object, request):
if comment.is_public:
current_language = get_language()
try:
activate(settings.LANGUAGE_CODE)
if self.mail_comment_notification_recipients:
self.do_email_notification(comment, content_object,
request)
if self.email_authors:
self.do_email_authors(comment, content_object,
request)
if self.email_reply:
self.do_email_reply(comment, content_object, request)
finally:
activate(current_language)
def do_email_notification(self, comment, content_object, request):
"""Send email notification of a new comment to site staff when email
notifications have been requested."""
site = Site.objects.get_current()
template = loader.get_template(
'comments/comment_notification_email.txt')
context = Context({'comment': comment, 'site': site,
'protocol': PROTOCOL,
'content_object': content_object})
subject = _('[%(site)s] New comment posted on "%(title)s"') % \
{'site': site.name,
'title': content_object.title}
message = template.render(context)
send_mail(subject, message, settings.DEFAULT_FROM_EMAIL,
self.mail_comment_notification_recipients,
fail_silently=not settings.DEBUG)
def do_email_authors(self, comment, content_object, request):
"""Send email notification of a new comment to the authors of the
nodetype when email notifications have been requested."""
exclude_list = self.mail_comment_notification_recipients
recipient_list = set([author.email
for author in content_object.authors.all()]) ^ \
set(exclude_list)
if recipient_list:
site = Site.objects.get_current()
template = loader.get_template(
'comments/comment_authors_email.txt')
context = Context({'comment': comment, 'site': site,
'protocol': PROTOCOL,
'content_object': content_object})
subject = _('[%(site)s] New comment posted on "%(title)s"') % \
{'site': site.name,
'title': content_object.title}
message = template.render(context)
send_mail(subject, message, settings.DEFAULT_FROM_EMAIL,
recipient_list, fail_silently=not settings.DEBUG)
def do_email_reply(self, comment, content_object, request):
"""Send email notification of a new comment to the authors of
the previous comments when email notifications have been requested."""
exclude_list = self.mail_comment_notification_recipients + \
[author.email
for author in content_object.authors.all()] + \
[comment.userinfo['email']]
recipient_list = set([comment.userinfo['email']
for comment in content_object.comments
if comment.userinfo['email']]) ^ \
set(exclude_list)
if recipient_list:
site = Site.objects.get_current()
template = loader.get_template('comments/comment_reply_email.txt')
context = Context({'comment': comment, 'site': site,
'protocol': PROTOCOL,
'content_object': content_object})
subject = _('[%(site)s] New comment posted on "%(title)s"') % \
{'site': site.name,
'title': content_object.title}
message = template.render(context)
mail = EmailMessage(subject, message,
settings.DEFAULT_FROM_EMAIL,
bcc=recipient_list)
mail.send(fail_silently=not settings.DEBUG)
def moderate(self, comment, content_object, request):
"""Determine whether a given comment on a given object should be
allowed to show up immediately, or should be marked non-public
and await approval."""
if self.auto_moderate_comments:
return True
if check_is_spam(comment, content_object, request,
self.spam_checker_backends):
comment.save()
user = comment.content_object.authors.all()[0]
comment.flags.create(user=user, flag='spam')
return True
return False
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