-from rest_framework.generics import ListAPIView, RetrieveAPIView
+# -*- 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 json
+from django.http import Http404, HttpResponse
+from rest_framework.generics import ListAPIView, RetrieveAPIView, get_object_or_404
+from rest_framework.permissions import DjangoModelPermissionsOrAnonReadOnly
+from rest_framework.response import Response
+from rest_framework import status
+from paypal.permissions import IsSubscribed
+from api.handlers import read_tags
+from .helpers import books_after, order_books
from . import serializers
-from catalogue.models import Book, Collection
+from catalogue.forms import BookImportForm
+from catalogue.models import Book, Collection, Tag, Fragment
+from catalogue.models.tag import prefetch_relations
+from wolnelektury.utils import re_escape
+
+
+book_tag_categories = ['author', 'epoch', 'kind', 'genre']
class CollectionList(ListAPIView):
serializer_class = serializers.CollectionSerializer
+class BookList(ListAPIView):
+ permission_classes = [DjangoModelPermissionsOrAnonReadOnly]
+ queryset = Book.objects.none() # Required for DjangoModelPermissions
+ serializer_class = serializers.BookListSerializer
+
+ def get_queryset(self):
+ try:
+ tags, ancestors = read_tags(
+ self.kwargs.get('tags', ''), self.request,
+ allowed=('author', 'epoch', 'kind', 'genre')
+ )
+ except ValueError:
+ raise Http404
+
+ new_api = self.request.query_params.get('new_api')
+ after = self.request.query_params.get('after', self.kwargs.get('after'))
+ count = self.request.query_params.get('count', self.kwargs.get('count'))
+
+ if tags:
+ if self.kwargs.get('top_level'):
+ books = Book.tagged_top_level(tags)
+ if not books:
+ raise Http404
+ return books
+ else:
+ books = Book.tagged.with_all(tags)
+ else:
+ books = Book.objects.all()
+ books = order_books(books, new_api)
+
+ if self.kwargs.get('top_level'):
+ books = books.filter(parent=None)
+ if self.kwargs.get('audiobooks'):
+ books = books.filter(media__type='mp3').distinct()
+ if self.kwargs.get('daisy'):
+ books = books.filter(media__type='daisy').distinct()
+ if self.kwargs.get('recommended'):
+ books = books.filter(recommended=True)
+ if self.kwargs.get('newest'):
+ books = books.order_by('-created_at')
+
+ if after:
+ books = books_after(books, after, new_api)
+
+ prefetch_relations(books, 'author')
+ prefetch_relations(books, 'genre')
+ prefetch_relations(books, 'kind')
+ prefetch_relations(books, 'epoch')
+
+ if count:
+ books = books[:count]
+
+ return books
+
+ def post(self, request, **kwargs):
+ # Permission needed.
+ data = json.loads(request.POST.get('data'))
+ form = BookImportForm(data)
+ if form.is_valid():
+ form.save()
+ return Response({}, status=status.HTTP_201_CREATED)
+ else:
+ raise Http404
+
+
class BookDetail(RetrieveAPIView):
queryset = Book.objects.all()
lookup_field = 'slug'
serializer_class = serializers.BookDetailSerializer
+
+
+class EbookList(BookList):
+ serializer_class = serializers.EbookSerializer
+
+
+class Preview(ListAPIView):
+ queryset = Book.objects.filter(preview=True)
+ serializer_class = serializers.BookPreviewSerializer
+
+
+class FilterBookList(ListAPIView):
+ serializer_class = serializers.FilterBookListSerializer
+
+ def parse_bool(self, s):
+ if s in ('true', 'false'):
+ return s == 'true'
+ else:
+ return None
+
+ def get_queryset(self):
+ key_sep = '$'
+ search_string = self.request.query_params.get('search')
+ is_lektura = self.parse_bool(self.request.query_params.get('lektura'))
+ is_audiobook = self.parse_bool(self.request.query_params.get('audiobook'))
+ preview = self.parse_bool(self.request.query_params.get('preview'))
+
+ new_api = self.request.query_params.get('new_api')
+ after = self.request.query_params.get('after')
+ count = int(self.request.query_params.get('count', 50))
+ books = order_books(Book.objects.distinct(), new_api)
+ if is_lektura is not None:
+ books = books.filter(has_audience=is_lektura)
+ if is_audiobook is not None:
+ if is_audiobook:
+ books = books.filter(media__type='mp3')
+ else:
+ books = books.exclude(media__type='mp3')
+ if preview is not None:
+ books = books.filter(preview=preview)
+ for category in book_tag_categories:
+ category_plural = category + 's'
+ if category_plural in self.request.query_params:
+ slugs = self.request.query_params[category_plural].split(',')
+ tags = Tag.objects.filter(category=category, slug__in=slugs)
+ books = Book.tagged.with_any(tags, books)
+ if (search_string is not None) and len(search_string) < 3:
+ search_string = None
+ if search_string:
+ search_string = re_escape(search_string)
+ books_author = books.filter(cached_author__iregex=r'\m' + search_string)
+ books_title = books.filter(title__iregex=r'\m' + search_string)
+ books_title = books_title.exclude(id__in=list(books_author.values_list('id', flat=True)))
+ if after and (key_sep in after):
+ which, key = after.split(key_sep, 1)
+ if which == 'title':
+ book_lists = [(books_after(books_title, key, new_api), 'title')]
+ else: # which == 'author'
+ book_lists = [(books_after(books_author, key, new_api), 'author'), (books_title, 'title')]
+ else:
+ book_lists = [(books_author, 'author'), (books_title, 'title')]
+ else:
+ if after and key_sep in after:
+ which, key = after.split(key_sep, 1)
+ books = books_after(books, key, new_api)
+ book_lists = [(books, 'book')]
+
+ filtered_books = []
+ for book_list, label in book_lists:
+ for category in book_tag_categories:
+ book_list = prefetch_relations(book_list, category)
+ remaining_count = count - len(filtered_books)
+ for book in book_list[:remaining_count]:
+ book.key = '%s%s%s' % (
+ label, key_sep, book.slug if not new_api else book.full_sort_key())
+ filtered_books.append(book)
+ if len(filtered_books) == count:
+ break
+
+ return filtered_books
+
+
+class EpubView(RetrieveAPIView):
+ queryset = Book.objects.all()
+ lookup_field = 'slug'
+ permission_classes = [IsSubscribed]
+
+ def get(self, *args, **kwargs):
+ return HttpResponse(self.get_object().get_media('epub'))
+
+
+class TagCategoryView(ListAPIView):
+ serializer_class = serializers.TagSerializer
+
+ def get_queryset(self):
+ category = self.kwargs['category']
+ tags = Tag.objects.filter(category=category).exclude(items=None).order_by('slug')
+ if self.request.query_params.get('book_only') == 'true':
+ tags = tags.filter(for_books=True)
+ if self.request.GET.get('picture_only') == 'true':
+ tags = filter(for_pictures=True)
+
+ after = self.request.query_params.get('after')
+ count = self.request.query_params.get('count')
+ if after:
+ tags = tags.filter(slug__gt=after)
+ if count:
+ tags = tags[:count]
+
+ return tags
+
+
+class TagView(RetrieveAPIView):
+ serializer_class = serializers.TagDetailSerializer
+
+ def get_object(self):
+ return get_object_or_404(
+ Tag,
+ category=self.kwargs['category'],
+ slug=self.kwargs['slug']
+ )
+
+
+class FragmentList(ListAPIView):
+ serializer_class = serializers.FragmentSerializer
+
+ def get_queryset(self):
+ try:
+ tags, ancestors = read_tags(
+ self.kwargs['tags'],
+ self.request,
+ allowed={'author', 'epoch', 'kind', 'genre', 'book', 'theme'}
+ )
+ except ValueError:
+ raise Http404
+ return Fragment.tagged.with_all(tags).select_related('book')
+
+
+class FragmentView(RetrieveAPIView):
+ serializer_class = serializers.FragmentDetailSerializer
+
+ def get_object(self):
+ return get_object_or_404(
+ Fragment,
+ book__slug=self.kwargs['book'],
+ anchor=self.kwargs['anchor']
+ )
fnp / wolnelektury.git / blobdiff