+++ /dev/null
-# -*- coding: utf-8 -*-
-# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
-# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
-#
-import os.path
-from urlparse import urljoin
-
-from django.contrib.syndication.views import Feed
-from django.core.urlresolvers import reverse
-from django.shortcuts import get_object_or_404
-from django.utils.feedgenerator import Atom1Feed
-from django.conf import settings
-from django.http import Http404
-from django.contrib.sites.models import Site
-
-from basicauth import logged_in_or_basicauth, factory_decorator
-from catalogue.models import Book, Tag
-
-from search import Search, SearchResult, JVM
-from lucene import Term, QueryWrapperFilter, TermQuery
-
-import re
-
-from stats.utils import piwik_track
-
-_root_feeds = (
- {
- u"category": u"",
- u"link": u"opds_user",
- u"link_args": [],
- u"title": u"Moje półki",
- u"description": u"Półki użytkownika dostępne po zalogowaniu"
- },
- {
- u"category": u"author",
- u"link": u"opds_by_category",
- u"link_args": [u"author"],
- u"title": u"Autorzy",
- u"description": u"Utwory wg autorów"
- },
- {
- u"category": u"kind",
- u"link": u"opds_by_category",
- u"link_args": [u"kind"],
- u"title": u"Rodzaje",
- u"description": u"Utwory wg rodzajów"
- },
- {
- u"category": u"genre",
- u"link": u"opds_by_category",
- u"link_args": [u"genre"],
- u"title": u"Gatunki",
- u"description": u"Utwory wg gatunków"
- },
- {
- u"category": u"epoch",
- u"link": u"opds_by_category",
- u"link_args": [u"epoch"],
- u"title": u"Epoki",
- u"description": u"Utwory wg epok"
- },
-)
-
-
-def full_url(url):
- return urljoin("http://%s" % Site.objects.get_current().domain, url)
-
-
-class OPDSFeed(Atom1Feed):
- link_rel = u"subsection"
- link_type = u"application/atom+xml"
-
- _book_parent_img = full_url(os.path.join(settings.STATIC_URL, "img/book-parent.png"))
- try:
- _book_parent_img_size = unicode(os.path.getsize(os.path.join(settings.STATIC_ROOT, "img/book-parent.png")))
- except:
- _book_parent_img_size = ''
-
- _book_img = full_url(os.path.join(settings.STATIC_URL, "img/book.png"))
- try:
- _book_img_size = unicode(os.path.getsize(os.path.join(settings.STATIC_ROOT, "img/book.png")))
- except:
- _book_img_size = ''
-
-
- def add_root_elements(self, handler):
- super(OPDSFeed, self).add_root_elements(handler)
- handler.addQuickElement(u"link", None,
- {u"href": reverse("opds_authors"),
- u"rel": u"start",
- u"type": u"application/atom+xml"})
- handler.addQuickElement(u"link", None,
- {u"href": full_url(os.path.join(settings.STATIC_URL, "opensearch.xml")),
- u"rel": u"search",
- u"type": u"application/opensearchdescription+xml"})
-
-
- def add_item_elements(self, handler, item):
- """ modified from Atom1Feed.add_item_elements """
- handler.addQuickElement(u"title", item['title'])
-
- # add a OPDS Navigation link if there's no enclosure
- if item['enclosure'] is None:
- handler.addQuickElement(u"link", u"", {u"href": item['link'], u"rel": u"subsection", u"type": u"application/atom+xml"})
- # add a "green book" icon
- handler.addQuickElement(u"link", '',
- {u"rel": u"http://opds-spec.org/thumbnail",
- u"href": self._book_parent_img,
- u"length": self._book_parent_img_size,
- u"type": u"image/png"})
- if item['pubdate'] is not None:
- handler.addQuickElement(u"updated", rfc3339_date(item['pubdate']).decode('utf-8'))
-
- # Author information.
- if item['author_name'] is not None:
- handler.startElement(u"author", {})
- handler.addQuickElement(u"name", item['author_name'])
- if item['author_email'] is not None:
- handler.addQuickElement(u"email", item['author_email'])
- if item['author_link'] is not None:
- handler.addQuickElement(u"uri", item['author_link'])
- handler.endElement(u"author")
-
- # Unique ID.
- if item['unique_id'] is not None:
- unique_id = item['unique_id']
- else:
- unique_id = get_tag_uri(item['link'], item['pubdate'])
- handler.addQuickElement(u"id", unique_id)
-
- # Summary.
- # OPDS needs type=text
- if item['description'] is not None:
- handler.addQuickElement(u"summary", item['description'], {u"type": u"text"})
-
- # Enclosure as OPDS Acquisition Link
- if item['enclosure'] is not None:
- handler.addQuickElement(u"link", '',
- {u"rel": u"http://opds-spec.org/acquisition",
- u"href": item['enclosure'].url,
- u"length": item['enclosure'].length,
- u"type": item['enclosure'].mime_type})
- # add a "red book" icon
- handler.addQuickElement(u"link", '',
- {u"rel": u"http://opds-spec.org/thumbnail",
- u"href": self._book_img,
- u"length": self._book_img_size,
- u"type": u"image/png"})
-
- # Categories.
- for cat in item['categories']:
- handler.addQuickElement(u"category", u"", {u"term": cat})
-
- # Rights.
- if item['item_copyright'] is not None:
- handler.addQuickElement(u"rights", item['item_copyright'])
-
-
-class AcquisitionFeed(Feed):
- feed_type = OPDSFeed
- link = u'http://www.wolnelektury.pl/'
- item_enclosure_mime_type = "application/epub+zip"
- author_name = u"Wolne Lektury"
- author_link = u"http://www.wolnelektury.pl/"
-
- def item_title(self, book):
- return book.title
-
- def item_description(self):
- return u''
-
- def item_link(self, book):
- return book.get_absolute_url()
-
- def item_author_name(self, book):
- try:
- return book.tags.filter(category='author')[0].name
- except KeyError:
- return u''
-
- def item_author_link(self, book):
- try:
- return book.tags.filter(category='author')[0].get_absolute_url()
- except KeyError:
- return u''
-
- def item_enclosure_url(self, book):
- return full_url(book.epub_file.url) if book.epub_file else None
-
- def item_enclosure_length(self, book):
- return book.epub_file.size if book.epub_file else None
-
-@piwik_track
-class RootFeed(Feed):
- feed_type = OPDSFeed
- title = u'Wolne Lektury'
- link = u'http://wolnelektury.pl/'
- description = u"Spis utworów na stronie http://WolneLektury.pl"
- author_name = u"Wolne Lektury"
- author_link = u"http://wolnelektury.pl/"
-
- def items(self):
- return _root_feeds
-
- def item_title(self, item):
- return item['title']
-
- def item_link(self, item):
- return reverse(item['link'], args=item['link_args'])
-
- def item_description(self, item):
- return item['description']
-
-@piwik_track
-class ByCategoryFeed(Feed):
- feed_type = OPDSFeed
- link = u'http://wolnelektury.pl/'
- description = u"Spis utworów na stronie http://WolneLektury.pl"
- author_name = u"Wolne Lektury"
- author_link = u"http://wolnelektury.pl/"
-
- def get_object(self, request, category):
- feed = [feed for feed in _root_feeds if feed['category']==category]
- if feed:
- feed = feed[0]
- else:
- raise Http404
-
- return feed
-
- def title(self, feed):
- return feed['title']
-
- def items(self, feed):
- return Tag.objects.filter(category=feed['category']).exclude(book_count=0)
-
- def item_title(self, item):
- return item.name
-
- def item_link(self, item):
- return reverse("opds_by_tag", args=[item.category, item.slug])
-
- def item_description(self):
- return u''
-
-@piwik_track
-class ByTagFeed(AcquisitionFeed):
- def link(self, tag):
- return tag.get_absolute_url()
-
- def title(self, tag):
- return tag.name
-
- def description(self, tag):
- return u"Spis utworów na stronie http://WolneLektury.pl"
-
- def get_object(self, request, category, slug):
- return get_object_or_404(Tag, category=category, slug=slug)
-
- def items(self, tag):
- books = Book.tagged.with_any([tag])
- l_tags = Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in books])
- descendants_keys = [book.pk for book in Book.tagged.with_any(l_tags)]
- if descendants_keys:
- books = books.exclude(pk__in=descendants_keys)
-
- return books
-
-
-@factory_decorator(logged_in_or_basicauth())
-@piwik_track
-class UserFeed(Feed):
- feed_type = OPDSFeed
- link = u'http://www.wolnelektury.pl/'
- description = u"Półki użytkownika na stronie http://WolneLektury.pl"
- author_name = u"Wolne Lektury"
- author_link = u"http://wolnelektury.pl/"
-
- def get_object(self, request):
- return request.user
-
- def title(self, user):
- return u"Półki użytkownika %s" % user.username
-
- def items(self, user):
- return Tag.objects.filter(category='set', user=user).exclude(book_count=0)
-
- def item_title(self, item):
- return item.name
-
- def item_link(self, item):
- return reverse("opds_user_set", args=[item.slug])
-
- def item_description(self):
- return u''
-
-# no class decorators in python 2.5
-#UserFeed = factory_decorator(logged_in_or_basicauth())(UserFeed)
-
-
-@factory_decorator(logged_in_or_basicauth())
-@piwik_track
-class UserSetFeed(AcquisitionFeed):
- def link(self, tag):
- return tag.get_absolute_url()
-
- def title(self, tag):
- return tag.name
-
- def description(self, tag):
- return u"Spis utworów na stronie http://WolneLektury.pl"
-
- def get_object(self, request, slug):
- return get_object_or_404(Tag, category='set', slug=slug, user=request.user)
-
- def items(self, tag):
- return Book.tagged.with_any([tag])
-
-# no class decorators in python 2.5
-#UserSetFeed = factory_decorator(logged_in_or_basicauth())(UserSetFeed)
-
-
-@piwik_track
-class SearchFeed(AcquisitionFeed):
- description = u"Wyniki wyszukiwania na stronie WolneLektury.pl"
- title = u"Wyniki wyszukiwania"
-
- INLINE_QUERY_RE = re.compile(r"(author:(?P<author>[^ ]+)|title:(?P<title>[^ ]+)|categories:(?P<categories>[^ ]+)|description:(?P<description>[^ ]+))")
-
- def get_object(self, request):
- """
- For OPDS 1.1 We should handle a query for search terms
- and criteria provided either as opensearch or 'inline' query.
- OpenSearch defines fields: atom:author, atom:contributor (treated as translator),
- atom:title. Inline query provides author, title, categories (treated as book tags),
- description (treated as content search terms).
-
- if search terms are provided, we shall search for books
- according to Hint information (from author & contributror & title).
-
- but if search terms are empty, we should do a different search
- (perhaps for is_book=True)
-
- """
- JVM.attachCurrentThread()
-
- query = request.GET.get('q', '')
-
- inline_criteria = re.findall(self.INLINE_QUERY_RE, query)
- if inline_criteria:
- def get_criteria(criteria, name, position):
- e = filter(lambda el: el[0][0:len(name)] == name, criteria)
- print e
- if not e:
- return None
- c = e[0][position]
- print c
- if c[0] == '"' and c[-1] == '"':
- c = c[1:-1]
- c = c.replace('+', ' ')
- return c
-
- #import pdb; pdb.set_trace()
- author = get_criteria(inline_criteria, 'author', 1)
- title = get_criteria(inline_criteria, 'title', 2)
- translator = None
- categories = get_criteria(inline_criteria, 'categories', 3)
- query = get_criteria(inline_criteria, 'description', 4)
- else:
- author = request.GET.get('author', '')
- title = request.GET.get('title', '')
- translator = request.GET.get('translator', '')
-
- # Our client didn't handle the opds placeholders
- if author == '{atom:author}': author = ''
- if title == '{atom:title}': title = ''
- if translator == '{atom:contributor}': translator = ''
- categories = None
- fuzzy = False
-
-
- srch = Search()
- hint = srch.hint()
-
- # Scenario 1: full search terms provided.
- # Use auxiliarry information to narrow it and make it better.
- if query:
- filters = []
-
- if author:
- print "narrow to author %s" % author
- hint.tags(srch.search_tags(author, filt=srch.term_filter(Term('tag_category', 'author'))))
-
- if translator:
- print "filter by translator %s" % translator
- filters.append(QueryWrapperFilter(
- srch.make_phrase(srch.get_tokens(translator, field='translators'),
- field='translators')))
-
- if categories:
- filters.append(QueryWrapperFilter(
- srch.make_phrase(srch.get_tokens(categories, field="tag_name_pl"),
- field='tag_name_pl')))
-
- flt = srch.chain_filters(filters)
- if title:
- print "hint by book title %s" % title
- q = srch.make_phrase(srch.get_tokens(title, field='title'), field='title')
- hint.books(*srch.search_books(q, filt=flt))
-
- toks = srch.get_tokens(query)
- print "tokens: %s" % toks
- # import pdb; pdb.set_trace()
- results = SearchResult.aggregate(srch.search_perfect_book(toks, fuzzy=fuzzy, hint=hint),
- srch.search_perfect_parts(toks, fuzzy=fuzzy, hint=hint),
- srch.search_everywhere(toks, fuzzy=fuzzy, hint=hint))
- results.sort(reverse=True)
- return [r.book for r in results]
- else:
- # Scenario 2: since we no longer have to figure out what the query term means to the user,
- # we can just use filters and not the Hint class.
- filters = []
-
- fields = {
- 'author': author,
- 'translators': translator,
- 'title': title
- }
-
- for fld, q in fields.items():
- if q:
- filters.append(QueryWrapperFilter(
- srch.make_phrase(srch.get_tokens(q, field=fld), field=fld)))
-
- flt = srch.chain_filters(filters)
- books = srch.search_books(TermQuery(Term('is_book', 'true')), filt=flt)
- return books
-
- def get_link(self, query):
- return "%s?q=%s" % (reverse('search'), query)
-
- def items(self, books):
- try:
- return books
- except ValueError:
- # too short a query
- return []
fnp / wolnelektury.git / blobdiff