X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/5aa13410812d3fc4b35c039bdc3f0a2edc5185a1..b0b9c1f0f9f4cc0f5c4d00d913735ab6a81bf214:/src/catalogue/api/views.py diff --git a/src/catalogue/api/views.py b/src/catalogue/api/views.py index 143990723..ee345ba68 100644 --- a/src/catalogue/api/views.py +++ b/src/catalogue/api/views.py @@ -1,6 +1,24 @@ -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): @@ -14,7 +32,219 @@ class CollectionDetail(RetrieveAPIView): 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'] + )