# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
-from base64 import b64encode
import os.path
from urlparse import urljoin
from basicauth import logged_in_or_basicauth, factory_decorator
from catalogue.models import Book, Tag
-from catalogue.views import books_starting_with
+
+from search.views import Search, SearchResult
+import operator
+import logging
+import re
+
+log = logging.getLogger('opds')
from stats.utils import piwik_track
{u"href": reverse("opds_authors"),
u"rel": u"start",
u"type": u"application/atom+xml"})
- handler.addQuickElement(u"link", None,
+ 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"})
return u''
def item_enclosure_url(self, book):
- return full_url(book.root_ancestor.epub_file.url)
+ return full_url(book.epub_file.url) if book.epub_file else None
def item_enclosure_length(self, book):
- return book.root_ancestor.epub_file.size
+ 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://www.wolnelektury.pl/'
+ link = u'http://wolnelektury.pl/'
description = u"Spis utworów na stronie http://WolneLektury.pl"
author_name = u"Wolne Lektury"
- author_link = u"http://www.wolnelektury.pl/"
+ author_link = u"http://wolnelektury.pl/"
def items(self):
return _root_feeds
@piwik_track
class ByCategoryFeed(Feed):
feed_type = OPDSFeed
- link = u'http://www.wolnelektury.pl/'
+ link = u'http://wolnelektury.pl/'
description = u"Spis utworów na stronie http://WolneLektury.pl"
author_name = u"Wolne Lektury"
- author_link = u"http://www.wolnelektury.pl/"
+ author_link = u"http://wolnelektury.pl/"
def get_object(self, request, category):
feed = [feed for feed in _root_feeds if feed['category']==category]
return feed['title']
def items(self, feed):
- return (tag for tag in Tag.objects.filter(category=feed['category']) if tag.get_count() > 0)
+ return Tag.objects.filter(category=feed['category']).exclude(book_count=0)
def item_title(self, item):
return item.name
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])
+ l_tags = Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in books.iterator()])
descendants_keys = [book.pk for book in Book.tagged.with_any(l_tags)]
if descendants_keys:
books = books.exclude(pk__in=descendants_keys)
link = u'http://www.wolnelektury.pl/'
description = u"Półki użytkownika na stronie http://WolneLektury.pl"
author_name = u"Wolne Lektury"
- author_link = u"http://www.wolnelektury.pl/"
+ author_link = u"http://wolnelektury.pl/"
def get_object(self, request):
return request.user
return u"Półki użytkownika %s" % user.username
def items(self, user):
- return (tag for tag in Tag.objects.filter(category='set', user=user) if tag.get_count() > 0)
+ return Tag.objects.filter(category='set', user=user).exclude(book_count=0)
def item_title(self, item):
return item.name
# 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"
-
+
+ QUOTE_OR_NOT = r'(?:(?=["])"([^"]+)"|([^ ]+))'
+ INLINE_QUERY_RE = re.compile(
+ r"author:" + QUOTE_OR_NOT +
+ "|translator:" + QUOTE_OR_NOT +
+ "|title:" + QUOTE_OR_NOT +
+ "|categories:" + QUOTE_OR_NOT +
+ "|description:" + QUOTE_OR_NOT +
+ "|text:" + QUOTE_OR_NOT
+ )
+ MATCHES = {
+ 'author': (0, 1),
+ 'translator': (2, 3),
+ 'title': (4, 5),
+ 'categories': (6, 7),
+ 'description': (8, 9),
+ 'text': (10, 11),
+ }
+
+ PARAMS_TO_FIELDS = {
+ 'author': 'authors',
+ 'translator': 'translators',
+ # 'title': 'title',
+ 'categories': 'tag_name_pl',
+ 'description': 'text',
+ # 'text': 'text',
+ }
+
+ ATOM_PLACEHOLDER = re.compile(r"^{(atom|opds):\w+}$")
+
def get_object(self, request):
- return request.GET.get('q', '')
+ """
+ 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)
+
+ """
+
+ query = request.GET.get('q', '')
+
+ inline_criteria = re.findall(self.INLINE_QUERY_RE, query)
+ if inline_criteria:
+ remains = re.sub(self.INLINE_QUERY_RE, '', query)
+ remains = re.sub(r'[ \t]+', ' ', remains)
+
+ def get_criteria(criteria, name):
+ for c in criteria:
+ for p in self.MATCHES[name]:
+ if c[p]:
+ if p % 2 == 0:
+ return c[p].replace('+', ' ')
+ return c[p]
+ return None
+
+ criteria = dict(map(
+ lambda cn: (cn, get_criteria(inline_criteria, cn)),
+ ['author', 'translator', 'title', 'categories',
+ 'description', 'text']))
+ query = remains
+ # empty query and text set case?
+ log.debug("Inline query = [%s], criteria: %s" % (query, criteria))
+ else:
+ def remove_dump_data(val):
+ """Some clients don't get opds placeholders and just send them."""
+ if self.ATOM_PLACEHOLDER.match(val):
+ return ''
+ return val
+
+ criteria = dict([(cn, remove_dump_data(request.GET.get(cn, '')))
+ for cn in self.MATCHES.keys()])
+ # query is set above.
+ log.debug("Inline query = [%s], criteria: %s" % (query, criteria))
+
+ srch = Search()
+
+ book_hit_filter = srch.index.Q(book_id__any=True)
+ filters = [book_hit_filter] + [srch.index.Q(
+ **{self.PARAMS_TO_FIELDS.get(cn, cn): criteria[cn]}
+ ) for cn in self.MATCHES.keys() if cn in criteria
+ if criteria[cn]]
+
+ if query:
+ q = srch.index.query(
+ reduce(operator.or_,
+ [srch.index.Q(**{self.PARAMS_TO_FIELDS.get(cn, cn): query})
+ for cn in self.MATCHES.keys()],
+ srch.index.Q()))
+ else:
+ q = srch.index.query(srch.index.Q())
+
+ q = srch.apply_filters(q, filters).field_limit(score=True, fields=['book_id'])
+ results = q.execute()
+
+ book_scores = dict([(r['book_id'], r['score']) for r in results])
+ books = Book.objects.filter(id__in=set([r['book_id'] for r in results]))
+ books = list(books)
+ books.sort(reverse=True, key=lambda book: book_scores[book.id])
+ return books
def get_link(self, query):
- return "%s?q=%s" % (reverse('search'), query)
+ return "%s?q=%s" % (reverse('search'), query)
- def items(self, query):
+ def items(self, books):
try:
- return books_starting_with(query)
+ return books
except ValueError:
# too short a query
return []
fnp / wolnelektury.git / blobdiff