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"""
django-helpdesk - A Django powered ticket tracker for small enterprise.
(c) Copyright 2008 Jutda. All Rights Reserved. See LICENSE for details.
lib.py - Common functions (eg multipart e-mail)
"""
import logging
import mimetypes
from django.conf import settings
from django.utils.encoding import smart_text
from helpdesk.models import FollowUpAttachment
logger = logging.getLogger('helpdesk')
def ticket_template_context(ticket):
context = {}
for field in ('title', 'created', 'modified', 'submitter_email',
'status', 'get_status_display', 'on_hold', 'description',
'resolution', 'priority', 'get_priority_display',
'last_escalation', 'ticket', 'ticket_for_url', 'merged_to',
'get_status', 'ticket_url', 'staff_url', '_get_assigned_to'
):
attr = getattr(ticket, field, None)
if callable(attr):
context[field] = '%s' % attr()
else:
context[field] = attr
context['assigned_to'] = context['_get_assigned_to']
return context
def queue_template_context(queue):
context = {}
for field in ('title', 'slug', 'email_address', 'from_address', 'locale'):
attr = getattr(queue, field, None)
if callable(attr):
context[field] = attr()
else:
context[field] = attr
return context
def safe_template_context(ticket):
"""
Return a dictionary that can be used as a template context to render
comments and other details with ticket or queue parameters. Note that
we don't just provide the Ticket & Queue objects to the template as
they could reveal confidential information. Just imagine these two options:
* {{ ticket.queue.email_box_password }}
* {{ ticket.assigned_to.password }}
Ouch!
The downside to this is that if we make changes to the model, we will also
have to update this code. Perhaps we can find a better way in the future.
"""
context = {
'queue': queue_template_context(ticket.queue),
'ticket': ticket_template_context(ticket),
}
context['ticket']['queue'] = context['queue']
return context
def text_is_spam(text, request):
# Based on a blog post by 'sciyoshi':
# http://sciyoshi.com/blog/2008/aug/27/using-akismet-djangos-new-comments-framework/
# This will return 'True' is the given text is deemed to be spam, or
# False if it is not spam. If it cannot be checked for some reason, we
# assume it isn't spam.
from django.contrib.sites.models import Site
from django.core.exceptions import ImproperlyConfigured
try:
from akismet import Akismet
except ImportError:
return False
try:
site = Site.objects.get_current()
except ImproperlyConfigured:
site = Site(domain='configure-django-sites.com')
# see https://akismet.readthedocs.io/en/latest/overview.html#using-akismet
apikey = None
if hasattr(settings, 'TYPEPAD_ANTISPAM_API_KEY'):
apikey = settings.TYPEPAD_ANTISPAM_API_KEY
elif hasattr(settings, 'PYTHON_AKISMET_API_KEY'):
# new env var expected by python-akismet package
apikey = settings.PYTHON_AKISMET_API_KEY
elif hasattr(settings, 'AKISMET_API_KEY'):
# deprecated, but kept for backward compatibility
apikey = settings.AKISMET_API_KEY
else:
return False
ak = Akismet(
blog_url='http://%s/' % site.domain,
key=apikey,
)
if hasattr(settings, 'TYPEPAD_ANTISPAM_API_KEY'):
ak.baseurl = 'api.antispam.typepad.com/1.1/'
if ak.verify_key():
ak_data = {
'user_ip': request.META.get('REMOTE_ADDR', '127.0.0.1'),
'user_agent': request.META.get('HTTP_USER_AGENT', ''),
'referrer': request.META.get('HTTP_REFERER', ''),
'comment_type': 'comment',
'comment_author': '',
}
return ak.comment_check(smart_text(text), data=ak_data)
return False
def process_attachments(followup, attached_files):
max_email_attachment_size = getattr(settings, 'HELPDESK_MAX_EMAIL_ATTACHMENT_SIZE', 512000)
attachments = []
for attached in attached_files:
if attached.size:
filename = smart_text(attached.name)
att = FollowUpAttachment(
followup=followup,
file=attached,
filename=filename,
mime_type=attached.content_type or
mimetypes.guess_type(filename, strict=False)[0] or
'application/octet-stream',
size=attached.size,
)
# BUG: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
#
# FIXED:
att.full_clean()
att.save()
if attached.size < max_email_attachment_size:
# Only files smaller than 512kb (or as defined in
# settings.HELPDESK_MAX_EMAIL_ATTACHMENT_SIZE) are sent via email.
attachments.append([filename, att.file])
return attachments
def format_time_spent(time_spent):
"""Format time_spent attribute to "[H]HHh:MMm" text string to be allign in
all graphical outputs
"""
if time_spent:
time_spent = "{0:02d}h:{1:02d}m".format(
time_spent.seconds // 3600,
time_spent.seconds // 60
)
else:
time_spent = ""
return time_spent
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