X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/60c3eb6ecbe5c000aa4d24344e85d2ed00d8983c..1a12630094dd57a463a8a1d4f64744e3b3b245af:/src/api/handlers.py diff --git a/src/api/handlers.py b/src/api/handlers.py index 827cd7c5f..ab1a44a52 100644 --- a/src/api/handlers.py +++ b/src/api/handlers.py @@ -6,18 +6,23 @@ import json from django.contrib.sites.models import Site from django.core.urlresolvers import reverse +from django.http.response import HttpResponse from django.utils.functional import lazy +from django.db import models from piston.handler import AnonymousBaseHandler, BaseHandler from piston.utils import rc from sorl.thumbnail import default +from api.models import BookUserData from catalogue.forms import BookImportForm from catalogue.models import Book, Tag, BookMedia, Fragment, Collection from catalogue.models.tag import prefetch_relations +from catalogue.utils import is_subscribed from picture.models import Picture from picture.forms import PictureImportForm from stats.utils import piwik_track +from wolnelektury.utils import re_escape from . import emitters # Register our emitters @@ -40,13 +45,25 @@ for k, v in category_singular.items(): book_tag_categories = ['author', 'epoch', 'kind', 'genre'] -def read_tags(tags, allowed): +def read_tags(tags, request, allowed): """ Reads a path of filtering tags. :param str tags: a path of category and slug pairs, like: authors/an-author/... :returns: list of Tag objects :raises: ValueError when tags can't be found """ + + def process(category, slug): + if category == 'book': + try: + books.append(Book.objects.get(slug=slug)) + except Book.DoesNotExist: + raise ValueError('Unknown book.') + try: + real_tags.append(Tag.objects.get(category=category, slug=slug)) + except Tag.DoesNotExist: + raise ValueError('Tag not found') + if not tags: return [], [] @@ -64,17 +81,14 @@ def read_tags(tags, allowed): if category not in allowed: raise ValueError('Category not allowed.') - - if category == 'book': - try: - books.append(Book.objects.get(slug=slug)) - except Book.DoesNotExist: - raise ValueError('Unknown book.') - - try: - real_tags.append(Tag.objects.get(category=category, slug=slug)) - except Tag.DoesNotExist: - raise ValueError('Tag not found') + process(category, slug) + + for key in request.GET: + if key in category_singular: + category = category_singular[key] + if category in allowed: + for slug in request.GET.getlist(key): + process(category, slug) return real_tags, books @@ -113,14 +127,12 @@ class BookDetails(object): @classmethod def url(cls, book): """ Returns Book's URL on the site. """ - return WL_BASE + book.get_absolute_url() @classmethod def children(cls, book): """ Returns all children for a book. """ - - return book.children.all() + return book.children.order_by('parent_number', 'sort_key') @classmethod def media(cls, book): @@ -136,6 +148,14 @@ class BookDetails(object): return MEDIA_BASE + default.backend.get_thumbnail( book.cover, "139x193").url if book.cover else '' + @classmethod + def simple_thumb(cls, book): + return MEDIA_BASE + book.cover_api_thumb.url if book.cover_api_thumb else '' + + @classmethod + def simple_cover(cls, book): + return MEDIA_BASE + book.simple_cover.url if book.simple_cover else '' + class BookDetailHandler(BaseHandler, BookDetails): """ Main handler for Book objects. @@ -144,7 +164,8 @@ class BookDetailHandler(BaseHandler, BookDetails): """ allowed_methods = ['GET'] fields = ['title', 'parent', 'children'] + Book.formats + [ - 'media', 'url', 'cover', 'cover_thumb'] + [ + 'media', 'url', 'cover', 'cover_thumb', 'simple_thumb', 'simple_cover', 'fragment_data', 'audio_length', + 'preview'] + [ category_plural[c] for c in book_tag_categories] @piwik_track @@ -163,7 +184,7 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): """ allowed_methods = ('GET',) model = Book - fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb'] + fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb', 'slug', 'simple_thumb', 'has_audio'] @classmethod def genres(cls, book): @@ -171,7 +192,9 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): return book.tags.filter(category='genre') @piwik_track - def read(self, request, tags=None, top_level=False, audiobooks=False, daisy=False, pk=None): + def read(self, request, tags=None, top_level=False, audiobooks=False, daisy=False, pk=None, + recommended=False, newest=False, books=None, + after=None, before=None, count=None): """ Lists all books with given tags. :param tags: filtering tags; should be a path of categories @@ -187,10 +210,17 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): return rc.NOT_FOUND try: - tags, _ancestors = read_tags(tags, allowed=book_tag_categories) + tags, _ancestors = read_tags(tags, request, allowed=book_tag_categories) except ValueError: return rc.NOT_FOUND + if 'after' in request.GET: + after = request.GET['after'] + if 'before' in request.GET: + before = request.GET['before'] + if 'count' in request.GET: + count = request.GET['count'] + if tags: if top_level: books = Book.tagged_top_level(tags) @@ -198,7 +228,8 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): else: books = Book.tagged.with_all(tags) else: - books = Book.objects.all() + books = books if books is not None else Book.objects.all() + books = books.order_by('slug') if top_level: books = books.filter(parent=None) @@ -206,14 +237,27 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): books = books.filter(media__type='mp3').distinct() if daisy: books = books.filter(media__type='daisy').distinct() + if recommended: + books = books.filter(recommended=True) + if newest: + books = books.order_by('-created_at') + + if after: + books = books.filter(slug__gt=after) + if before: + books = books.filter(slug__lt=before) books = books.only('slug', 'title', 'cover', 'cover_thumb') for category in book_tag_categories: books = prefetch_relations(books, category) - if books: - return books - else: - return rc.NOT_FOUND + + if count: + if before: + books = list(reversed(books.order_by('-slug')[:count])) + else: + books = books[:count] + + return books def create(self, request, *args, **kwargs): return rc.FORBIDDEN @@ -222,7 +266,7 @@ class AnonymousBooksHandler(AnonymousBaseHandler, BookDetails): class BooksHandler(BookDetailHandler): allowed_methods = ('GET', 'POST') model = Book - fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb'] + fields = book_tag_categories + ['href', 'title', 'url', 'cover', 'cover_thumb', 'slug'] anonymous = AnonymousBooksHandler def create(self, request, *args, **kwargs): @@ -238,8 +282,115 @@ class BooksHandler(BookDetailHandler): return rc.NOT_FOUND +class EpubHandler(BookDetailHandler): + def read(self, request, slug): + if not is_subscribed(request.user): + return rc.FORBIDDEN + try: + book = Book.objects.get(slug=slug) + except Book.DoesNotExist: + return rc.NOT_FOUND + response = HttpResponse(book.get_media('epub')) + return response + + class EBooksHandler(AnonymousBooksHandler): - fields = ('author', 'href', 'title', 'cover') + tuple(Book.ebook_formats) + fields = ('author', 'href', 'title', 'cover') + tuple(Book.ebook_formats) + ('slug',) + + +class BookProxy(models.Model): + class Meta: + managed = False + + def __init__(self, book, key): + self.book = book + self.key = key + + def __getattr__(self, item): + if item not in ('book', 'key'): + return self.book.__getattribute__(item) + else: + return self.__getattribute__(item) + + +class QuerySetProxy(models.QuerySet): + def __init__(self, l): + self.list = l + + def __iter__(self): + return iter(self.list) + + +class FilterBooksHandler(AnonymousBooksHandler): + fields = book_tag_categories + [ + 'href', 'title', 'url', 'cover', 'cover_thumb', 'simple_thumb', 'has_audio', 'slug', 'key'] + + def parse_bool(self, s): + if s in ('true', 'false'): + return s == 'true' + else: + return None + + def read(self, request): + key_sep = '$' + search_string = request.GET.get('search') + is_lektura = self.parse_bool(request.GET.get('lektura')) + is_audiobook = self.parse_bool(request.GET.get('audiobook')) + preview = self.parse_bool(request.GET.get('preview')) + + after = request.GET.get('after') + count = int(request.GET.get('count', 50)) + books = Book.objects.distinct().order_by('slug') + 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 key in request.GET: + if key in category_singular: + category = category_singular[key] + if category in book_tag_categories: + slugs = request.GET[key].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='\m' + search_string) + books_title = books.filter(title__iregex='\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, slug = after.split(key_sep, 1) + if which == 'title': + book_lists = [(books_title.filter(slug__gt=slug), 'title')] + else: # which == 'author' + book_lists = [(books_author.filter(slug__gt=slug), 'author'), (books_title, 'title')] + else: + book_lists = [(books_author, 'author'), (books_title, 'title')] + else: + if after and key_sep in after: + which, slug = after.split(key_sep, 1) + books = books.filter(slug__gt=slug) + book_lists = [(books, 'book')] + + filtered_books = [] + for book_list, label in book_lists: + book_list = book_list.only('slug', 'title', 'cover', 'cover_thumb') + for category in book_tag_categories: + book_list = prefetch_relations(book_list, category) + remaining_count = count - len(filtered_books) + new_books = [BookProxy(book, '%s%s%s' % (label, key_sep, book.slug)) + for book in book_list[:remaining_count]] + filtered_books += new_books + if len(filtered_books) == count: + break + + return QuerySetProxy(filtered_books) # add categorized tags fields for Book @@ -262,18 +413,18 @@ def add_tag_getters(): setattr(BookDetails, plural, _tags_getter(singular)) setattr(BookDetails, singular, _tag_getter(singular)) + add_tag_getters() # add fields for files in Book def _file_getter(book_format): - field = "%s_file" % book_format - @classmethod - def get_file(cls, book): - f = getattr(book, field) - if f: - return MEDIA_BASE + f.url + @staticmethod + def get_file(book): + f_url = book.media_url(book_format) + if f_url: + return MEDIA_BASE + f_url else: return '' return get_file @@ -283,6 +434,7 @@ def add_file_getters(): for book_format in Book.formats: setattr(BookDetails, book_format, _file_getter(book_format)) + add_file_getters() @@ -375,7 +527,7 @@ class TagsHandler(BaseHandler, TagDetails): """ allowed_methods = ('GET',) model = Tag - fields = ['name', 'href', 'url'] + fields = ['name', 'href', 'url', 'slug'] @piwik_track def read(self, request, category=None, pk=None): @@ -391,11 +543,31 @@ class TagsHandler(BaseHandler, TagDetails): except KeyError: return rc.NOT_FOUND - tags = Tag.objects.filter(category=category_sng).exclude(items=None) - if tags.exists(): - return tags - else: - return rc.NOT_FOUND + after = request.GET.get('after') + before = request.GET.get('before') + count = request.GET.get('count') + + tags = Tag.objects.filter(category=category_sng).exclude(items=None).order_by('slug') + + book_only = request.GET.get('book_only') == 'true' + picture_only = request.GET.get('picture_only') == 'true' + if book_only: + tags = tags.filter(for_books=True) + if picture_only: + tags = tags.filter(for_pictures=True) + + if after: + tags = tags.filter(slug__gt=after) + if before: + tags = tags.filter(slug__lt=before) + + if count: + if before: + tags = list(reversed(tags.order_by('-slug')[:count])) + else: + tags = tags[:count] + + return tags class FragmentDetails(object): @@ -454,7 +626,7 @@ class FragmentsHandler(BaseHandler, FragmentDetails): """ try: - tags, ancestors = read_tags(tags, allowed=self.categories) + tags, ancestors = read_tags(tags, request, allowed=self.categories) except ValueError: return rc.NOT_FOUND fragments = Fragment.tagged.with_all(tags).select_related('book') @@ -480,3 +652,65 @@ class PictureHandler(BaseHandler): return rc.CREATED else: return rc.NOT_FOUND + + +class UserDataHandler(BaseHandler): + model = BookUserData + fields = ('state', 'username') + allowed_methods = ('GET', 'POST') + + def read(self, request, slug=None): + if not request.user.is_authenticated(): + return rc.FORBIDDEN + if slug is None: + return {'username': request.user.username} + try: + book = Book.objects.get(slug=slug) + except Book.DoesNotExist: + return rc.NOT_FOUND + try: + data = BookUserData.objects.get(book=book, user=request.user) + except BookUserData.DoesNotExist: + return {'state': 'not_started'} + return data + + def create(self, request, slug, state): + try: + book = Book.objects.get(slug=slug) + except Book.DoesNotExist: + return rc.NOT_FOUND + if not request.user.is_authenticated(): + return rc.FORBIDDEN + if state not in ('reading', 'complete'): + return rc.NOT_FOUND + data, created = BookUserData.objects.get_or_create(book=book, user=request.user) + data.state = state + data.save() + return data + + +class UserShelfHandler(BookDetailHandler): + fields = book_tag_categories + [ + 'href', 'title', 'url', 'cover', 'cover_thumb', 'simple_thumb', 'slug', 'key'] + + def parse_bool(self, s): + if s in ('true', 'false'): + return s == 'true' + else: + return None + + def read(self, request, state): + if not request.user.is_authenticated(): + return rc.FORBIDDEN + if state not in ('reading', 'complete'): + return rc.NOT_FOUND + after = request.GET.get('after') + count = int(request.GET.get('count', 50)) + ids = BookUserData.objects.filter(user=request.user, complete=state == 'complete')\ + .values_list('book_id', flat=True) + books = Book.objects.filter(id__in=list(ids)).distinct().order_by('slug') + if after: + books = books.filter(slug__gt=after) + if count: + books = books[:count] + return books