django-helpdeskmig/helpdesk/lib.py

241 lines
8.0 KiB
Python

"""
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)
"""
from datetime import date, datetime, time
from django.conf import settings
from django.core.exceptions import ValidationError, ImproperlyConfigured
from django.utils.encoding import smart_str
from helpdesk.settings import CUSTOMFIELD_DATE_FORMAT, CUSTOMFIELD_DATETIME_FORMAT, CUSTOMFIELD_TIME_FORMAT
import logging
import mimetypes
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.
try:
from akismet import Akismet
except ImportError:
return False
from django.contrib.sites.models import Site
from django.core.exceptions import ImproperlyConfigured
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.headers.get('User-Agent', ''),
'referrer': request.headers.get('Referer', ''),
'comment_type': 'comment',
'comment_author': '',
}
return ak.comment_check(smart_str(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 = []
errors = set()
for attached in attached_files:
if attached.size:
from helpdesk.models import FollowUpAttachment
filename = smart_str(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,
)
try:
att.full_clean()
except ValidationError as e:
errors.add(e)
else:
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])
if errors:
raise ValidationError(list(errors))
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(
int(time_spent.total_seconds()) // 3600,
int(time_spent.total_seconds()) % 3600 // 60
)
else:
time_spent = ""
return time_spent
def convert_value(value):
""" Convert date/time data type to known fixed format string """
if type(value) is datetime:
return value.strftime(CUSTOMFIELD_DATETIME_FORMAT)
elif type(value) is date:
return value.strftime(CUSTOMFIELD_DATE_FORMAT)
elif type(value) is time:
return value.strftime(CUSTOMFIELD_TIME_FORMAT)
else:
return value
def daily_time_spent_calculation(earliest, latest, open_hours):
"""Returns the number of seconds for a single day time interval according to open hours."""
time_spent_seconds = 0
# avoid rendering day in different locale
weekday = ('monday', 'tuesday', 'wednesday', 'thursday',
'friday', 'saturday', 'sunday')[earliest.weekday()]
# enforce correct settings
MIDNIGHT = 23.9999
start, end = open_hours.get(weekday, (0, MIDNIGHT))
if not 0 <= start <= end <= MIDNIGHT:
raise ImproperlyConfigured("HELPDESK_FOLLOWUP_TIME_SPENT_OPENING_HOURS"
f" setting for {weekday} out of (0, 23.9999) boundary")
# transform decimals to minutes and seconds
start_hour, start_minute, start_second = int(start), int(start % 1 * 60), int(start * 60 % 1 * 60)
end_hour, end_minute, end_second = int(end), int(end % 1 * 60), int(end * 60 % 1 * 60)
# translate time for delta calculation
earliest_f = earliest.hour + earliest.minute / 60 + earliest.second / 3600
latest_f = latest.hour + latest.minute / 60 + latest.second / (60 * 60) + latest.microsecond / (60 * 60 * 999999)
# if latest time is midnight, add a second to the time spent
if latest_f >= 24:
time_spent_seconds += 1
if earliest_f < start:
earliest = earliest.replace(hour=start_hour, minute=start_minute, second=start_second)
elif earliest_f >= end:
earliest = earliest.replace(hour=end_hour, minute=end_minute, second=end_second)
if latest_f < start:
latest = latest.replace(hour=start_hour, minute=start_minute, second=start_second)
elif latest_f >= end:
latest = latest.replace(hour=end_hour, minute=end_minute, second=end_second)
day_delta = latest - earliest
# returns up to 86399 seconds, add one second if full day
time_spent_seconds += day_delta.seconds
return time_spent_seconds