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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/>.
# 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.
# 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/>.
"""Feed to Objectapp command module"""
import sys
from datetime import datetime
from optparse import make_option
from django.utils.html import strip_tags
from django.db.utils import IntegrityError
from django.utils.encoding import smart_str
from django.contrib.auth.models import User
from django.contrib.sites.models import Site
from django.utils.text import truncate_words
from django.template.defaultfilters import slugify
from django.core.management.base import CommandError
from django.core.management.base import LabelCommand
from objectapp import __version__
from objectapp.models import Gbobject
from objectapp.models import Objecttype
from objectapp.managers import PUBLISHED
from objectapp.signals import disconnect_objectapp_signals
class Command(LabelCommand):
"""Command object for importing a RSS or Atom
feed into Objectapp."""
help = 'Import a RSS or Atom feed into Objectapp.'
label = 'feed url'
args = 'url'
option_list = LabelCommand.option_list + (
make_option('--noautoexcerpt', action='store_false',
dest='auto_excerpt', default=True,
help='Do NOT generate an excerpt if not present.'),
make_option('--author', dest='author', default='',
help='All imported gbobjects belong to specified author'),
make_option('--Objecttype-is-tag', action='store_true',
dest='Objecttype-tag', default=False,
help='Store objecttypes as tags'),
)
SITE = Site.objects.get_current()
def __init__(self):
"""Init the Command and add custom styles"""
super(Command, self).__init__()
self.style.TITLE = self.style.SQL_FIELD
self.style.STEP = self.style.SQL_COLTYPE
self.style.ITEM = self.style.HTTP_INFO
disconnect_objectapp_signals()
def write_out(self, message, verbosity_level=1):
"""Convenient method for outputing"""
if self.verbosity and self.verbosity >= verbosity_level:
sys.stdout.write(smart_str(message))
sys.stdout.flush()
def handle_label(self, url, **options):
try:
import feedparser
except ImportError:
raise CommandError('You need to install the feedparser ' \
'module to run this command.')
self.verbosity = int(options.get('verbosity', 1))
self.auto_excerpt = options.get('auto_excerpt', True)
self.default_author = options.get('author')
self.Objecttype_tag = options.get('Objecttype-tag', False)
if self.default_author:
try:
self.default_author = User.objects.get(
username=self.default_author)
except User.DoesNotExist:
raise CommandError('Invalid username for default author')
self.write_out(self.style.TITLE(
'Starting importation of %s to Objectapp %s:\n' % (url, __version__)))
feed = feedparser.parse(url)
self.import_gbobjects(feed.gbobjects)
def import_gbobjects(self, feed_gbobjects):
"""Import gbobjects"""
for feed_gbobject in feed_gbobjects:
self.write_out('> %s... ' % feed_gbobject.title)
creation_date = datetime(*feed_gbobject.date_parsed[:6])
slug = slugify(feed_gbobject.title)[:255]
if Gbobject.objects.filter(creation_date__year=creation_date.year,
creation_date__month=creation_date.month,
creation_date__day=creation_date.day,
slug=slug):
self.write_out(self.style.NOTICE(
'SKIPPED (already imported)\n'))
continue
objecttypes = self.import_objecttypes(feed_gbobject)
gbobject_dict = {'title': feed_gbobject.title[:255],
'content': feed_gbobject.description,
'excerpt': feed_gbobject.get('summary'),
'status': PUBLISHED,
'creation_date': creation_date,
'start_publication': creation_date,
'last_update': datetime.now(),
'slug': slug}
if not gbobject_dict['excerpt'] and self.auto_excerpt:
gbobject_dict['excerpt'] = truncate_words(
strip_tags(feed_gbobject.description), 50)
if self.Objecttype_tag:
gbobject_dict['tags'] = self.import_tags(objecttypes)
gbobject = Gbobject(**gbobject_dict)
gbobject.save()
gbobject.objecttypes.add(*objecttypes)
gbobject.sites.add(self.SITE)
if self.default_author:
gbobject.authors.add(self.default_author)
elif feed_gbobject.get('author_detail'):
try:
user = User.objects.create_user(
slugify(feed_gbobject.author_detail.get('name')),
feed_gbobject.author_detail.get('email', ''))
except IntegrityError:
user = User.objects.get(
username=slugify(feed_gbobject.author_detail.get('name')))
gbobject.authors.add(user)
self.write_out(self.style.ITEM('OK\n'))
def import_objecttypes(self, feed_gbobject):
objecttypes = []
for cat in feed_gbobject.get('tags', ''):
Objecttype, created = Objecttype.objects.get_or_create(
slug=slugify(cat.term), defaults={'title': cat.term})
objecttypes.append(Objecttype)
return objecttypes
def import_tags(self, objecttypes):
tags = []
for cat in objecttypes:
if len(cat.title.split()) > 1:
tags.append('"%s"' % slugify(cat.title).replace('-', ' '))
else:
tags.append(slugify(cat.title).replace('-', ' '))
return ', '.join(tags)
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