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#-*- coding: utf-8 -*-
# Copyright (C) 1998-2012 by the Free Software Foundation, Inc.
#
# This file is part of HyperKitty.
#
# HyperKitty is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option)
# any later version.
#
# HyperKitty 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 General Public License for
# more details.
#
# You should have received a copy of the GNU General Public License along with
# HyperKitty. If not, see <http://www.gnu.org/licenses/>.
#
# Author: Aurelien Bompard <abompard@fedoraproject.org>
#
import urllib
from hashlib import md5
import datetime
from django.core.exceptions import SuspiciousOperation
from django.core.mail import EmailMessage
from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
from mailmanclient import MailmanConnectionError
from hyperkitty.lib import mailman
from hyperkitty.models import ThreadCategory
from hyperkitty.views.forms import CategoryForm
FLASH_MESSAGES = {
"updated-ok": ("success", "The profile was successfully updated."),
"sent-ok": ("success", "The message has been sent successfully."),
}
def gravatar_url(email):
'''Return a gravatar url for an email address'''
size = 64
default = "http://fedoraproject.org/static/images/" + \
"fedora_infinity_%ix%i.png" % (size, size)
query_string = urllib.urlencode({'s': size, 'd': default})
identifier = md5(email).hexdigest()
return 'http://www.gravatar.com/avatar/%s?%s' % (identifier, query_string)
def get_months(store, list_name):
""" Return a dictionnary of years, months for which there are
potentially archives available for a given list (based on the
oldest post on the list).
:arg list_name, name of the mailing list in which this email
should be searched.
"""
date_first = store.get_start_date(list_name)
if not date_first:
return {}
archives = {}
now = datetime.datetime.now()
year = date_first.year
month = date_first.month
while year < now.year:
archives[year] = range(1, 13)[(month -1):]
year = year + 1
month = 1
archives[now.year] = range(1, 13)[:now.month]
return archives
def get_store(request):
return request.environ["kittystore.store"]
def stripped_subject(mlist, subject):
if mlist is None:
return subject
if subject.lower().startswith(mlist.subject_prefix.lower()):
subject = subject[len(mlist.subject_prefix) : ]
return subject
def get_display_dates(year, month, day):
if day is None:
start_day = 1
else:
start_day = int(day)
begin_date = datetime.datetime(int(year), int(month), start_day)
if day is None:
end_date = begin_date + datetime.timedelta(days=32)
end_date = end_date.replace(day=1)
else:
end_date = begin_date + datetime.timedelta(days=1)
return begin_date, end_date
def daterange(start_date, end_date):
for n in range(int((end_date - start_date).days)):
yield start_date + datetime.timedelta(n)
class PostingFailed(Exception): pass
def post_to_list(request, mlist, subject, message, headers={},
attachments=None):
if not mlist:
# Make sure the list exists to avoid posting to any email addess
raise SuspiciousOperation("I don't know this mailing-list")
# Check that the user is subscribed
try:
mailman.subscribe(mlist.name, request.user)
except MailmanConnectionError:
raise PostingFailed("Can't connect to Mailman's REST server, "
"your message has not been sent.")
# send the message
headers["User-Agent"] = "HyperKitty on %s" % request.build_absolute_uri("/")
if not request.user.first_name and not request.user.last_name:
from_email = request.user.email
else:
from_email = '"%s %s" <%s>' % (request.user.first_name,
request.user.last_name,
request.user.email)
msg = EmailMessage(
subject=subject,
body=message,
from_email=from_email,
to=[mlist.name],
headers=headers,
)
# Attachments
if attachments:
if not isinstance(attachments, list):
attachments = [attachments]
for attach in attachments:
msg.attach(attach.name, attach.read())
msg.send()
def paginate(objects, page_num, max_page_range=10, paginator=None):
try:
page_num = int(page_num)
except (TypeError, ValueError):
page_num = 1
if paginator is None:
paginator = Paginator(objects, 10) # else use the provided instance
try:
objects = paginator.page(page_num)
except PageNotAnInteger:
# If page is not an integer, deliver first page.
objects = paginator.page(1)
except EmptyPage:
# If page is out of range (e.g. 9999), deliver last page of results.
objects = paginator.page(paginator.num_pages)
# Calculate the displayed page range
if paginator.num_pages > max_page_range:
objects.page_range = [ 1 ]
subrange_lower = page_num - (max_page_range / 2 - 2)
if subrange_lower > 3:
objects.page_range.append("...")
else:
subrange_lower = 2
objects.page_range.extend(range(subrange_lower, page_num))
if page_num != 1 and page_num != 100:
objects.page_range.append(page_num)
subrange_upper = page_num + (max_page_range / 2 - 2)
if subrange_upper >= paginator.num_pages - 2:
subrange_upper = paginator.num_pages - 1
objects.page_range.extend(range(page_num+1, subrange_upper+1))
if subrange_upper < paginator.num_pages - 2:
objects.page_range.append("...")
objects.page_range.append(paginator.num_pages)
else:
objects.page_range = [ p+1 for p in range(paginator.num_pages) ]
return objects
def get_category_widget(request, current_category=None):
categories = [ (c.name, c.name.upper())
for c in ThreadCategory.objects.all() ] \
+ [("", "no categories")]
if request.method == "POST":
category_form = CategoryForm(request.POST)
else:
category_form = CategoryForm(initial={"category": current_category or ""})
category_form["category"].field.choices = categories
if request.method == "POST" and category_form.is_valid():
# is_valid() must be called after the choices have been set
current_category = category_form.cleaned_data["category"]
if not current_category:
category = None
else:
try:
category = ThreadCategory.objects.get(name=current_category)
except ThreadCategory.DoesNotExist:
category = None
return category, category_form
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