257 lines
8.6 KiB
Python
257 lines
8.6 KiB
Python
from django.contrib.syndication.feeds import Feed
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from django.utils.feedgenerator import Rss201rev2Feed
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from conservancy.apps.news.models import PressRelease
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from conservancy.apps.blog.models import Entry as BlogEntry
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from django.shortcuts import render_to_response
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from django.conf import settings
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from datetime import datetime
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import itertools
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import operator
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class ConservancyFeedBase(Feed):
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def copyright_holder(self): return "Software Freedom Conservancy"
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def license_no_html(self): return "Licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License."
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def item_copyright(self, item):
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year = 2008
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for attr in ('pub_date', 'date_created', 'date_last_modified'):
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if hasattr(item, attr):
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if hasattr(getattr(item, attr), 'year'):
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year = getattr(getattr(item, attr), 'year')
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break
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return 'Copyright (C) %d, %s. %s' % (year, self.copyright_holder(), self.license_no_html())
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def item_extra_kwargs(self, item):
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year = 2008
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for attr in ('pub_date', 'date_created', 'date_last_modified'):
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if hasattr(item, attr):
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if hasattr(getattr(item, attr), 'year'):
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year = getattr(getattr(item, attr), 'year')
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break
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return { 'year' : year }
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class PressReleaseFeed(Feed):
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title = "Software Freedom Conservancy News"
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link = "/news/"
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description = ""
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def items(self):
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return PressRelease.objects.filter(pub_date__lte=datetime.now(),
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sites__id__exact=settings.SITE_ID).order_by('-pub_date')[:10]
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def item_pubdate(self, item):
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return item.pub_date
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class OmnibusFeedType(Rss201rev2Feed):
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def root_attributes(self):
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attrs = super(OmnibusFeedType, self).root_attributes()
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attrs['xmlns:itunes'] = 'http://www.itunes.com/dtds/podcast-1.0.dtd'
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attrs['xmlns:atom'] = 'http://www.w3.org/2005/Atom'
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attrs['xmlns:media'] = 'http://search.yahoo.com/mrss/'
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attrs['xmlns:dc'] = "http://purl.org/dc/elements/1.1/"
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return attrs
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def add_root_elements(self, handler):
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super(OmnibusFeedType, self).add_root_elements(handler)
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def add_item_elements(self, handler, item):
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super(OmnibusFeedType, self).add_item_elements(handler, item)
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# Block things that don't have an enclosure from iTunes in
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# case someone uploads this feed there.
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handler.addQuickElement("itunes:block", 'Yes')
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class OmnibusFeed(ConservancyFeedBase):
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feed_type = OmnibusFeedType
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link ="/omnibus/"
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title = "The Software Freedom Conservancy"
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description = "An aggregated feed of all RSS content available from the Software Freedom Conservancy, including both news items and blogs."
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title_template = "feeds/omnibus_title.html"
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description_template = "feeds/omnibus_description.html"
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author_email = "info@sfconservancy.org"
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author_link = "http://sfconservancy.org/"
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author_name = "Software Freedom Conservancy"
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def item_enclosure_mime_type(self): return "audio/mpeg"
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def item_enclosure_url(self, item):
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if hasattr(item, 'mp3_path'):
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return "http://sfconservancy.org" + item.mp3_path
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def item_enclosure_length(self, item):
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if hasattr(item, 'mp3_path'):
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return item.mp3_length
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def item_pubdate(self, item):
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return item.pub_date
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def item_author_name(self, item):
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if item.omnibus_type == "blog":
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return item.author.formal_name
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else:
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return "Software Freedom Conservancy"
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def item_author_link(self, obj):
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return "http://sfconservancy.org"
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def item_author_email(self, item):
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if item.omnibus_type == "news":
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return "info@sfconservancy.org"
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elif hasattr(item, 'author'):
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return "%s@sfconservancy.org" % item.author
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else:
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return "info@sfconservancy.org"
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def item_pubdate(self, item):
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if item.omnibus_type == "event":
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return item.date_created
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else:
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return item.pub_date
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def item_link(self, item):
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return item.get_absolute_url()
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# http://groups.google.ca/group/django-users/browse_thread/thread/d22e8a8f378cf0e2
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def items(self):
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blogs = BlogEntry.objects.filter(pub_date__lte=datetime.now()).order_by('-pub_date')[:25]
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for bb in blogs:
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bb.omnibus_type = "blog"
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bb.omnibus_feed_description_template = "feeds/blog_description.html"
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bb.omnibus_feed_title_template = "feeds/blog_title.html"
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news = PressRelease.objects.filter(pub_date__lte=datetime.now(),
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sites__id__exact=settings.SITE_ID).order_by('-pub_date')[:25]
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for nn in news:
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nn.omnibus_type = "news"
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nn.omnibus_feed_description_template = "feeds/news_description.html"
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nn.omnibus_feed_title_template = "feeds/news_title.html"
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a = [ ii for ii in itertools.chain(blogs, news)]
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a.sort(key=operator.attrgetter('pub_date'), reverse=True)
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return a
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def item_extra_kwargs(self, item):
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return super(OmnibusFeed, self).item_extra_kwargs(item)
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class BlogFeed(ConservancyFeedBase):
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link = "/blog/"
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def title(self):
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answer = "The Software Freedom Conservancy Blog"
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GET = self.request.GET
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tags = []
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if 'author' in GET:
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tags = GET.getlist('author')
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if 'tag' in GET:
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tags += GET.getlist('tag')
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if len(tags) == 1:
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answer += " (" + tags[0] + ")"
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elif len(tags) > 1:
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firstTime = True
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done = {}
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for tag in tags:
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if done.has_key(tag): continue
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if firstTime:
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answer += " ("
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firstTime = False
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else:
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answer += ", "
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answer += tag
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done[tag] = tag
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answer += ")"
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else:
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answer += "."
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return answer
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def description(self):
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answer = "Blogs at the Software Freedom Conservancy"
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GET = self.request.GET
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tags = []
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if 'author' in GET: tags = GET.getlist('author')
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if 'tag' in GET: tags += GET.getlist('tag')
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done = {}
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if len(tags) == 1:
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answer += " tagged with " + tags[0]
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elif len(tags) > 1:
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firstTime = True
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for tag in tags:
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if done.has_key(tag): continue
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if firstTime:
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answer += " tagged with "
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firstTime = False
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else:
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answer += " or "
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answer += tag
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done[tag] = tag
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else:
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answer = "All blogs at the Software Freedom Conservancy"
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answer += "."
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return answer
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def item_author_name(self, item):
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return item.author.formal_name
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def item_author_email(self, item):
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GET = self.request.GET
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if not 'author' in GET:
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return "%s@sfconservancy.org" % item.author
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else:
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answer = ""
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authors = GET.getlist('author')
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firstTime = True
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for author in authors:
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if not firstTime:
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answer = "%s@sfconservancy.org" % author
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firstTime = False
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else:
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answer += ",%s@sfconservancy.org" % author
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def item_pubdate(self, item):
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return item.pub_date
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def items(self):
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GET = self.request.GET
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def OR_filter(field_name, subfield_name, objs):
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from django.db.models import Q
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return reduce(lambda x, y: x | y,
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[Q(**{'%s__%s' % (field_name, subfield_name): x})
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for x in objs])
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queryset = BlogEntry.objects.filter(pub_date__lte=datetime.now())
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if 'author' in GET:
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authors = GET.getlist('author')
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queryset = queryset.filter(OR_filter('author', 'username', authors))
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if 'tag' in GET:
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tags = GET.getlist('tag')
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queryset = queryset.filter(OR_filter('tags', 'slug', tags))
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return queryset.order_by('-pub_date')[:10]
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feed_dict = {
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'blog': BlogFeed,
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'news': PressReleaseFeed,
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'omnibus': OmnibusFeed,
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# 'event-media': RecentEventMediaFeed,
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}
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# make each feed know its canonical url
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for k, v in feed_dict.items():
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v.get_absolute_url = '/feeds/%s/' % k
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def view(request):
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"""Listing of all available feeds
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"""
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feeds = feed_dict.values()
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return render_to_response("feeds.html", {'feeds': feeds})
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