Translators as authors.
[wolnelektury.git] / src / catalogue / views.py
index c545cdf..588cdb0 100644 (file)
@@ -1,74 +1,61 @@
-# -*- 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.
+# This file is part of Wolne Lektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Wolne Lektury. See NOTICE for more information.
 #
 from collections import OrderedDict
 import random
+import re
+from urllib.parse import quote_plus
 
 from django.conf import settings
-from django.http.response import HttpResponseForbidden
-from django.template import RequestContext
 from django.template.loader import render_to_string
-from django.shortcuts import render_to_response, get_object_or_404, render, redirect
+from django.shortcuts import get_object_or_404, render, redirect
 from django.http import HttpResponse, HttpResponseRedirect, Http404, HttpResponsePermanentRedirect
-from django.core.urlresolvers import reverse
+from django.urls import reverse
 from django.db.models import Q, QuerySet
 from django.contrib.auth.decorators import login_required, user_passes_test
-from django.utils.http import urlquote_plus
 from django.utils import translation
-from django.utils.translation import ugettext as _, ugettext_lazy
+from django.utils.translation import gettext_lazy
+from django.views.decorators.cache import never_cache
+from django.views.generic import TemplateView
 
 from ajaxable.utils import AjaxableFormView
+from club.forms import DonationStep1Form
+from club.models import Club
+from annoy.models import DynamicTextInsert
 from pdcounter import views as pdcounter_views
 from picture.models import Picture, PictureArea
-from ssify import ssi_included, ssi_expect, SsiVariable as Var
+from wolnelektury.utils import is_ajax
 from catalogue import constants
 from catalogue import forms
 from catalogue.helpers import get_top_level_related_tags
 from catalogue.models import Book, Collection, Tag, Fragment
-from catalogue.utils import split_tags, is_subscribed
+from catalogue.models.tag import TagRelation
+from catalogue.utils import split_tags
 from catalogue.models.tag import prefetch_relations
-from wolnelektury.utils import is_crawler
 
 staff_required = user_passes_test(lambda user: user.is_staff)
 
 
 def catalogue(request):
     return render(request, 'catalogue/catalogue.html', {
-        'books': Book.objects.filter(parent=None),
+        'books': Book.objects.filter(findable=True, parent=None),
         'pictures': Picture.objects.all(),
-        'collections': Collection.objects.all(),
+        'collections': Collection.objects.filter(listed=True),
         'active_menu_item': 'all_works',
     })
 
 
-def book_list(request, filters=None, template_name='catalogue/book_list.html',
-              nav_template_name='catalogue/snippets/book_list_nav.html',
-              list_template_name='catalogue/snippets/book_list.html'):
-    """ generates a listing of all books, optionally filtered """
-    books_by_author, orphans, books_by_parent = Book.book_list(filters)
-    books_nav = OrderedDict()
-    for tag in books_by_author:
-        if books_by_author[tag]:
-            books_nav.setdefault(tag.sort_key[0], []).append(tag)
-    # WTF: dlaczego nie include?
-    return render_to_response(template_name, {
-        'rendered_nav': render_to_string(nav_template_name, {'books_nav': books_nav}),
-        'rendered_book_list': render_to_string(list_template_name, {
-            'books_by_author': books_by_author,
-            'orphans': orphans,
-            'books_by_parent': books_by_parent,
-        })
-    }, context_instance=RequestContext(request))
-
-
 def daisy_list(request):
-    return book_list(request, Q(media__type='daisy'), template_name='catalogue/daisy_list.html')
+    return object_list(request, Book.objects.filter(media__type='daisy'))
 
 
 def collection(request, slug):
     coll = get_object_or_404(Collection, slug=slug)
-    return render(request, 'catalogue/collection.html', {'collection': coll})
+    template_name = 'catalogue/collection.html'
+    return render(request, template_name, {
+        'collection': coll,
+        'active_menu_item': 'collections',
+    })
 
 
 def differentiate_tags(request, tags, ambiguous_slugs):
@@ -80,12 +67,254 @@ def differentiate_tags(request, tags, ambiguous_slugs):
             'url_args': '/'.join((beginning, tag.url_chunk, unparsed)).strip('/'),
             'tags': [tag]
         })
-    return render_to_response(
-        'catalogue/differentiate_tags.html', {'tags': tags, 'options': options, 'unparsed': ambiguous_slugs[1:]},
-        context_instance=RequestContext(request))
+    return render(
+        request,
+        'catalogue/differentiate_tags.html',
+        {'tags': tags, 'options': options, 'unparsed': ambiguous_slugs[1:]}
+    )
+
+
+from django.db.models import FilteredRelation, Q
+from django.views.decorators.cache import cache_control
+from django.views.decorators.vary import vary_on_headers
+from django.utils.decorators import method_decorator
+
+
+@method_decorator([
+    vary_on_headers('X-Requested-With'),
+    cache_control(max_age=1),
+], 'dispatch')
+class ObjectListView(TemplateView):
+    page_size = 100
+    themed_page_size = 10
+    item_template_name = ''
+    orderings = {}
+    default_ordering = None
+
+    def analyse(self):
+        self.is_themed = False
+        self.ctx = ctx = {}
+        ctx['tags'] = []        
+
+    def dispatch(self, *args, **kwargs):
+        try:
+            self.analyse()
+        except ResponseInstead as e:
+            return e.response
+        return super().dispatch(*args, **kwargs)
+        
+    def get_orderings(self):
+        order = self.get_order()
+        return [
+            {
+                "slug": k,
+                "name": v[1],
+                "active": k == order,
+                "default": v[0] is None,
+            }
+            for k, v in self.orderings.items()
+        ]
+
+    def get_order(self):
+        order = self.request.GET.get('order')
+        if order not in self.orderings:
+            order = self.default_ordering
+        return order
+
+    def order(self, qs):
+        order_tag = self.get_order()
+        if order_tag:
+            order = self.orderings[order_tag]
+            order_by = order[0]
+            if order_by:
+                qs = qs.order_by(order_by)
+        return qs
+
+    def search(self, qs):
+        return qs
+
+    def get_template_names(self):
+        if is_ajax(self.request) or self.request.GET.get('dyn'):
+            if self.is_themed:
+                return self.dynamic_themed_template_name
+            else:
+                return self.dynamic_template_name
+        else:
+            if self.is_themed:
+                return self.themed_template_name
+            else:
+                return self.template_name
+
+    def get_context_data(self, **kwargs):
+        ctx = super().get_context_data()
+        ctx.update(self.ctx)
+        qs = self.get_queryset()
+        qs = self.search(qs)
+        qs = self.order(qs)
+
+        ctx['object_list'] = qs
+        ctx['suggested_tags'] = self.get_suggested_tags(qs)
+        ctx['suggested_tags_by_category'] = split_tags(ctx['suggested_tags'])
+        return ctx
+
+
+class BookList(ObjectListView):
+    title = gettext_lazy('Literatura')
+    list_type = 'books'
+    template_name = 'catalogue/book_list.html'
+    dynamic_template_name = 'catalogue/dynamic_book_list.html'
+    themed_template_name = 'catalogue/themed_book_list.html'
+    dynamic_themed_template_name = 'catalogue/dynamic_themed_book_list.html'
+
+    orderings = {
+        'pop': ('-popularity__count', gettext_lazy('najpopularniejsze')),
+        'alpha': (None, gettext_lazy('alfabetycznie')),
+    }
+    default_ordering = 'alpha'
+
+    def get_queryset(self):
+        return Book.objects.filter(parent=None, findable=True)
+
+    def search(self, qs):
+        term = self.request.GET.get('search')
+        if term:
+            meta_rels = TagRelation.objects.filter(tag__category='author')
+            # TODO: search tags in currently displaying language
+            if self.is_themed:
+                rels = meta_rels.filter(tag__name_pl__icontains=term)
+                qs = qs.filter(
+                    Q(book__title__icontains=term) |
+                    Q(tag_relations__in=rels) |
+                    Q(text__icontains=term)
+                ).distinct()
+            else:
+                qs = qs.annotate(
+                    meta=FilteredRelation('tag_relations', condition=Q(tag_relations__in=meta_rels))
+                )
+                qs = qs.filter(Q(title__icontains=term) | Q(meta__tag__name_pl__icontains=term)).distinct()
+        return qs
+
+
+class ArtList(ObjectListView):
+    template_name = 'catalogue/book_list.html'
+    dynamic_template_name = 'catalogue/dynamic_book_list.html'
+    title = gettext_lazy('Sztuka')
+    list_type = 'gallery'
+
+    def get_queryset(self):
+        return Picture.objects.all()
+
+    def search(self, qs):
+        term = self.request.GET.get('search')
+        if term:
+            qs = qs.filter(Q(title__icontains=term) | Q(tag_relations__tag__name_pl__icontains=term)).distinct()
+        return qs
+    
+
+class LiteratureView(BookList):
+    def get_suggested_tags(self, queryset):
+        tags = list(get_top_level_related_tags([]))
+        tags.sort(key=lambda t: -t.count)
+        if self.request.user.is_authenticated:
+            tags.extend(list(Tag.objects.filter(user=self.request.user).exclude(name='')))
+        return tags
+
+
+class AudiobooksView(LiteratureView):
+    title = gettext_lazy('Audiobooki')
+    list_type = 'audiobooks'
+
+    def get_queryset(self):
+        return Book.objects.filter(findable=True, media__type='mp3').distinct()
+
+
+class GalleryView(ArtList):
+    def get_suggested_tags(self, queryset):
+        return Tag.objects.usage_for_queryset(
+            queryset,
+            counts=True
+        ).exclude(pk__in=[t.id for t in self.ctx['tags']]).order_by('-count')
+    
+
+class TaggedObjectList(BookList):
+    def analyse(self):
+        super().analyse()
+        self.ctx['tags'] = analyse_tags(self.request, self.kwargs['tags'])
+        self.ctx['fragment_tags'] = [t for t in self.ctx['tags'] if t.category in ('theme', 'object')]
+        self.ctx['work_tags'] = [t for t in self.ctx['tags'] if t not in self.ctx['fragment_tags']]
+        self.is_themed = self.ctx['has_theme'] = bool(self.ctx['fragment_tags'])
+        if self.is_themed:
+            self.ctx['main_tag'] = self.ctx['fragment_tags'][0]
+        elif self.ctx['tags']:
+            self.ctx['main_tag'] = self.ctx['tags'][0]
+        else:
+            self.ctx['main_tag'] = None
+        self.ctx['filtering_tags'] = [
+            t for t in self.ctx['tags']
+            if t is not self.ctx['main_tag']
+        ]
+        if len(self.ctx['tags']) == 1 and self.ctx['main_tag'].category == 'author':
+            self.ctx['translation_list'] = self.ctx['main_tag'].book_set.all()
+
+    def get_queryset(self):
+        qs = Book.tagged.with_all(self.ctx['work_tags']).filter(findable=True)
+        qs = qs.exclude(ancestor__in=qs)
+        if self.is_themed:
+            fqs = Fragment.tagged.with_all(self.ctx['fragment_tags'])
+            if self.ctx['work_tags']:
+                fqs = fqs.filter(
+                    Q(book__in=qs) | Q(book__ancestor__in=qs)
+                )
+            qs = fqs
+        return qs
+
+    def get_suggested_tags(self, queryset):
+        tag_ids = [t.id for t in self.ctx['tags']]
+        if self.is_themed:
+            related_tags = []
+            current_books = self.get_queryset().values_list('book', flat=True).distinct()
+            containing_books = Book.objects.filter(Q(id__in=current_books) | Q(children__in=current_books))
+
+            related_tags.extend(list(
+                Tag.objects.usage_for_queryset(
+                    containing_books,
+                ).exclude(category='set').exclude(pk__in=tag_ids)
+            ))
+            if self.request.user.is_authenticated:
+                related_tags.extend(list(
+                    Tag.objects.usage_for_queryset(
+                        containing_books
+                    ).filter(
+                        user=self.request.user
+                    ).exclude(name='').exclude(pk__in=tag_ids)
+                ))
+        else:
+            related_tags = list(get_top_level_related_tags(self.ctx['tags']))
+            if self.request.user.is_authenticated:
+                qs = Book.tagged.with_all(self.ctx['tags']).filter(findable=True)
+                related_tags.extend(list(
+                    Tag.objects.usage_for_queryset(
+                        qs
+                    ).filter(
+                        user=self.request.user
+                    ).exclude(name='').exclude(pk__in=tag_ids)
+                ))
+
+            fragments = Fragment.objects.filter(
+                Q(book__in=queryset) | Q(book__ancestor__in=queryset)
+            )
+            related_tags.extend(
+                Tag.objects.usage_for_queryset(
+                    fragments, counts=True
+                ).filter(category__in=('theme', 'object')).exclude(pk__in=tag_ids)
+            .only('name', 'sort_key', 'category', 'slug'))
 
+        return related_tags
 
-def object_list(request, objects, fragments=None, related_tags=None, tags=None, list_type='books', extra=None):
+    
+    
+def object_list(request, objects, fragments=None, related_tags=None, tags=None,
+                list_type='books', extra=None):
     if not tags:
         tags = []
     tag_ids = [tag.pk for tag in tags]
@@ -95,7 +324,17 @@ def object_list(request, objects, fragments=None, related_tags=None, tags=None,
         related_tag_lists.append(related_tags)
     else:
         related_tag_lists.append(
-            Tag.objects.usage_for_queryset(objects, counts=True).exclude(category='set').exclude(pk__in=tag_ids))
+            Tag.objects.usage_for_queryset(
+                objects, counts=True
+            ).exclude(category='set').exclude(pk__in=tag_ids))
+        if request.user.is_authenticated:
+            related_tag_lists.append(
+                Tag.objects.usage_for_queryset(
+                    objects, counts=True
+                ).filter(
+                    user=request.user
+                ).exclude(name='').exclude(pk__in=tag_ids)
+            )
     if not (extra and extra.get('theme_is_set')):
         if fragments is None:
             if list_type == 'gallery':
@@ -103,12 +342,18 @@ def object_list(request, objects, fragments=None, related_tags=None, tags=None,
             else:
                 fragments = Fragment.objects.filter(book__in=objects)
         related_tag_lists.append(
-            Tag.objects.usage_for_queryset(fragments, counts=True).filter(category='theme').exclude(pk__in=tag_ids)
+            Tag.objects.usage_for_queryset(
+                fragments, counts=True
+            ).filter(category='theme').exclude(pk__in=tag_ids)
             .only('name', 'sort_key', 'category', 'slug'))
         if isinstance(objects, QuerySet):
             objects = prefetch_relations(objects, 'author')
 
+    
     categories = split_tags(*related_tag_lists)
+    suggest = []
+    for c in ['set', 'author', 'epoch', 'kind', 'genre']:
+        suggest.extend(sorted(categories[c], key=lambda t: -t.count))
 
     objects = list(objects)
 
@@ -124,8 +369,10 @@ def object_list(request, objects, fragments=None, related_tags=None, tags=None,
     result = {
         'object_list': objects,
         'categories': categories,
+        'suggest': suggest,
         'list_type': list_type,
         'tags': tags,
+        'main_tag': tags[0] if tags else None,
 
         'formats_form': forms.DownloadFormatsForm(),
         'best': best,
@@ -133,33 +380,17 @@ def object_list(request, objects, fragments=None, related_tags=None, tags=None,
     }
     if extra:
         result.update(extra)
-    return render_to_response(
-        'catalogue/tagged_object_list.html', result,
-        context_instance=RequestContext(request))
-
-
-def literature(request):
-    books = Book.objects.filter(parent=None)
-
-    # last_published = Book.objects.exclude(cover_thumb='').filter(parent=None).order_by('-created_at')[:20]
-    # most_popular = Book.objects.exclude(cover_thumb='')\
-    #                    .order_by('-popularity__count', 'sort_key_author', 'sort_key')[:20]
-    return object_list(request, books, related_tags=get_top_level_related_tags([]))
-    # extra={
-    #     'last_published': last_published,
-    #     'most_popular': most_popular,
-    # })
-
-
-def gallery(request):
-    return object_list(request, Picture.objects.all(), list_type='gallery')
-
 
-def audiobooks(request):
-    audiobooks = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct()
-    return object_list(request, audiobooks, list_type='audiobooks', extra={
-        'daisy': Book.objects.filter(media__type='daisy').distinct(),
-    })
+    has_theme = any(((theme := x).category == 'theme' for x in tags))
+    if has_theme:
+        result['main_tag'] = theme
+        template = 'catalogue/theme_detail.html'
+    else:
+        template = 'catalogue/author_detail.html'
+        
+    return render(
+        request, template, result,
+    )
 
 
 class ResponseInstead(Exception):
@@ -177,15 +408,16 @@ def analyse_tags(request, tag_str):
         chunks = tag_str.split('/')
         if len(chunks) == 2 and chunks[0] == 'autor':
             raise ResponseInstead(pdcounter_views.author_detail(request, chunks[1]))
-        else:
-            raise Http404
-    except Tag.MultipleObjectsReturned, e:
+        raise Http404
+    except Tag.MultipleObjectsReturned as e:
         # Ask the user to disambiguate
         raise ResponseInstead(differentiate_tags(request, e.tags, e.ambiguous_slugs))
-    except Tag.UrlDeprecationWarning, e:
+    except Tag.UrlDeprecationWarning as e:
         raise ResponseInstead(HttpResponsePermanentRedirect(
             reverse('tagged_object_list', args=['/'.join(tag.url_chunk for tag in e.tags)])))
 
+    if not tags:
+        raise Http404
     try:
         if len(tags) > settings.MAX_TAG_LIST:
             raise Http404
@@ -207,6 +439,8 @@ def theme_list(request, tags, list_type):
         # TODO: Pictures on shelves not supported yet.
         books = Book.tagged.with_all(shelf_tags).order_by()
         fragments = fragments.filter(Q(book__in=books) | Q(book__ancestor__in=books))
+    elif list_type == 'books':
+        fragments = fragments.filter(book__findable=True)
 
     if not fragments and len(tags) == 1 and list_type == 'books':
         if PictureArea.tagged.with_any(tags).exists() or Picture.tagged.with_any(tags).exists():
@@ -219,14 +453,14 @@ def theme_list(request, tags, list_type):
 
 
 def tagged_object_list(request, tags, list_type):
+    if list_type in ('books', 'audiobooks'):
+        return TaggedObjectList.as_view()(request, tags=tags)
+
     try:
         tags = analyse_tags(request, tags)
     except ResponseInstead as e:
         return e.response
 
-    if is_crawler(request) and len(tags) > 1:
-        return HttpResponseForbidden('address removed from crawling. check robots.txt')
-
     if list_type == 'gallery' and any(tag.category == 'set' for tag in tags):
         raise Http404
 
@@ -239,19 +473,22 @@ def tagged_object_list(request, tags, list_type):
         if any(tag.category == 'set' for tag in tags):
             params = {'objects': books}
         else:
+            books = books.filter(findable=True)
             params = {
-                'objects': Book.tagged_top_level(tags),
+                'objects': Book.tagged_top_level(tags).filter(findable=True),
                 'fragments': Fragment.objects.filter(book__in=books),
                 'related_tags': get_top_level_related_tags(tags),
             }
     elif list_type == 'gallery':
         params = {'objects': Picture.tagged.with_all(tags)}
     elif list_type == 'audiobooks':
-        audiobooks = Book.objects.filter(media__type__in=('mp3', 'ogg')).distinct()
+        audiobooks = Book.objects.filter(findable=True, media__type__in=('mp3', 'ogg')).distinct()
         params = {
             'objects': Book.tagged.with_all(tags, audiobooks),
             'extra': {
-                'daisy': Book.tagged.with_all(tags, audiobooks.filter(media__type='daisy').distinct()),
+                'daisy': Book.tagged.with_all(
+                    tags, audiobooks.filter(media__type='daisy').distinct()
+                ),
             }
         }
     else:
@@ -266,53 +503,55 @@ def book_fragments(request, slug, theme_slug):
     fragments = Fragment.tagged.with_all([theme]).filter(
         Q(book=book) | Q(book__ancestor=book))
 
-    return render_to_response('catalogue/book_fragments.html', {
-        'book': book,
-        'theme': theme,
-        'fragments': fragments,
-        'active_menu_item': 'books',
-    }, context_instance=RequestContext(request))
+    template_name = 'catalogue/book_fragments.html'
+    return render(
+        request,
+        template_name,
+        {
+            'book': book,
+            'theme': theme,
+            'fragments': fragments,
+            'active_menu_item': 'books',
+        })
 
 
+@never_cache
 def book_detail(request, slug):
     try:
         book = Book.objects.get(slug=slug)
     except Book.DoesNotExist:
         return pdcounter_views.book_stub_detail(request, slug)
 
-    return render_to_response('catalogue/book_detail.html', {
-        'book': book,
-        'tags': book.tags.exclude(category__in=('set', 'theme')),
-        'book_children': book.children.all().order_by('parent_number', 'sort_key'),
-        'active_menu_item': 'books',
-    }, context_instance=RequestContext(request))
-
-
-# używane w publicznym interfejsie
-def player(request, slug):
-    book = get_object_or_404(Book, slug=slug)
-    if not book.has_media('mp3'):
-        raise Http404
-
-    audiobooks, projects = book.get_audiobooks()
-
-    return render_to_response('catalogue/player.html', {
-        'book': book,
-        'audiobook': '',
-        'audiobooks': audiobooks,
-        'projects': projects,
-    }, context_instance=RequestContext(request))
+    return render(
+        request,
+        'catalogue/book_detail.html',
+        {
+            'book': book,
+            'accessible': book.is_accessible_to(request.user),
+            'book_children': book.children.all().order_by('parent_number', 'sort_key'),
+            'active_menu_item': 'books',
+            'club': Club.objects.first() if book.preview else None,
+            'donation_form': DonationStep1Form(),
+        })
 
 
 def book_text(request, slug):
     book = get_object_or_404(Book, slug=slug)
 
-    if book.preview and not is_subscribed(request.user):
+    if not book.is_accessible_to(request.user):
         return HttpResponseRedirect(book.get_absolute_url())
 
     if not book.has_html_file():
         raise Http404
-    return render_to_response('catalogue/book_text.html', {'book': book}, context_instance=RequestContext(request))
+    with book.html_file.open('r') as f:
+        book_text = f.read()
+
+    return render(request, 'catalogue/book_text.html', {
+        'book': book,
+        'extra_info': book.get_extra_info_json(),
+        'book_text': book_text,
+        'inserts': DynamicTextInsert.get_all(request)
+    })
 
 
 # =========
@@ -334,11 +573,13 @@ def import_book(request):
             exception = pprint.pformat(info[1])
             tb = '\n'.join(traceback.format_tb(info[2]))
             return HttpResponse(
-                    _("An error occurred: %(exception)s\n\n%(tb)s") % {'exception': exception, 'tb': tb},
-                    mimetype='text/plain')
-        return HttpResponse(_("Book imported successfully"))
-    else:
-        return HttpResponse(_("Error importing file: %r") % book_import_form.errors)
+                "Błąd: %(exception)s\n\n%(tb)s" % {
+                    'exception': exception, 'tb': tb
+                },
+                content_type='text/plain'
+            )
+        return HttpResponse("Książka zaimportowana")
+    return HttpResponse("Błąd podczas importowania pliku: %r" % book_import_form.errors)
 
 
 # info views for API
@@ -347,7 +588,7 @@ def book_info(request, book_id, lang='pl'):
     book = get_object_or_404(Book, id=book_id)
     # set language by hand
     translation.activate(lang)
-    return render_to_response('catalogue/book_info.html', {'book': book}, context_instance=RequestContext(request))
+    return render(request, 'catalogue/book_info.html', {'book': book})
 
 
 def tag_info(request, tag_id):
@@ -355,33 +596,34 @@ def tag_info(request, tag_id):
     return HttpResponse(tag.description)
 
 
-def embargo_link(request, format_, slug):
+@never_cache
+def embargo_link(request, key, format_, slug):
     book = get_object_or_404(Book, slug=slug)
     if format_ not in Book.formats:
         raise Http404
+    if key != book.preview_key:
+        raise Http404
     media_file = book.get_media(format_)
     if not book.preview:
         return HttpResponseRedirect(media_file.url)
-    if not is_subscribed(request.user):
-        return HttpResponseRedirect(book.get_absolute_url())
     return HttpResponse(media_file, content_type=constants.EBOOK_CONTENT_TYPES[format_])
 
 
-def download_zip(request, format, slug=None):
-    if format in Book.ebook_formats:
-        url = Book.zip_format(format)
-    elif format in ('mp3', 'ogg') and slug is not None:
+def download_zip(request, file_format=None, media_format=None, slug=None):
+    if file_format:
+        url = Book.zip_format(file_format)
+    elif media_format and slug is not None:
         book = get_object_or_404(Book, slug=slug)
-        url = book.zip_audiobooks(format)
+        url = book.zip_audiobooks(media_format)
     else:
         raise Http404('No format specified for zip package')
-    return HttpResponseRedirect(urlquote_plus(settings.MEDIA_URL + url, safe='/?='))
+    return HttpResponseRedirect(quote_plus(settings.MEDIA_URL + url, safe='/?='))
 
 
 class CustomPDFFormView(AjaxableFormView):
     form_class = forms.CustomPDFForm
-    title = ugettext_lazy('Download custom PDF')
-    submit = ugettext_lazy('Download')
+    title = gettext_lazy('Stwórz własny PDF')
+    submit = gettext_lazy('Pobierz')
     template = 'catalogue/custom_pdf_form.html'
     honeypot = True
 
@@ -396,7 +638,7 @@ class CustomPDFFormView(AjaxableFormView):
 
     def validate_object(self, obj, request):
         book = obj
-        if book.preview and not is_subscribed(request.user):
+        if not book.is_accessible_to(request.user):
             return HttpResponseRedirect(book.get_absolute_url())
         return super(CustomPDFFormView, self).validate_object(obj, request)
 
@@ -408,83 +650,6 @@ class CustomPDFFormView(AjaxableFormView):
         return obj.pretty_title()
 
 
-####
-# Includes
-####
-
-
-@ssi_included
-def book_mini(request, pk, with_link=True):
-    # book = get_object_or_404(Book, pk=pk)
-    try:
-        book = Book.objects.only('cover_thumb', 'title', 'language', 'slug').get(pk=pk)
-    except Book.DoesNotExist:
-        raise Http404
-    return render(request, 'catalogue/book_mini_box.html', {
-        'book': book,
-        'no_link': not with_link,
-    })
-
-
-@ssi_included(get_ssi_vars=lambda pk: (lambda ipk: (
-        ('ssify.get_csrf_token',),
-        ('social_tags.likes_book', (ipk,)),
-        ('social_tags.book_shelf_tags', (ipk,)),
-    ))(ssi_expect(pk, int)))
-def book_short(request, pk):
-    book = get_object_or_404(Book, pk=pk)
-
-    return render(request, 'catalogue/book_short.html', {
-        'book': book,
-    })
-
-
-@ssi_included(
-    get_ssi_vars=lambda pk: book_short.get_ssi_vars(pk) +
-    (lambda ipk: (
-        ('social_tags.choose_cite', [ipk]),
-        ('catalogue_tags.choose_fragment', [ipk], {
-            'unless': Var('social_tags.choose_cite', [ipk])}),
-    ))(ssi_expect(pk, int)))
-def book_wide(request, pk):
-    book = get_object_or_404(Book, pk=pk)
-
-    return render(request, 'catalogue/book_wide.html', {
-        'book': book,
-    })
-
-
-@ssi_included
-def fragment_short(request, pk):
-    fragment = get_object_or_404(Fragment, pk=pk)
-    return render(request, 'catalogue/fragment_short.html', {'fragment': fragment})
-
-
-@ssi_included
-def fragment_promo(request, pk):
-    fragment = get_object_or_404(Fragment, pk=pk)
-    return render(request, 'catalogue/fragment_promo.html', {'fragment': fragment})
-
-
-@ssi_included
-def tag_box(request, pk):
-    tag = get_object_or_404(Tag, pk=pk)
-    assert tag.category != 'set'
-
-    return render(request, 'catalogue/tag_box.html', {
-        'tag': tag,
-    })
-
-
-@ssi_included
-def collection_box(request, pk):
-    collection = get_object_or_404(Collection, pk=pk)
-
-    return render(request, 'catalogue/collection_box.html', {
-        'collection': collection,
-    })
-
-
 def tag_catalogue(request, category):
     if category == 'theme':
         tags = Tag.objects.usage_for_model(
@@ -499,7 +664,8 @@ def tag_catalogue(request, category):
     else:
         best = described_tags
 
-    return render(request, 'catalogue/tag_catalogue.html', {
+    template_name = 'catalogue/tag_catalogue.html'
+    return render(request, template_name, {
         'tags': tags,
         'best': best,
         'title': constants.CATEGORIES_NAME_PLURAL[category],
@@ -509,16 +675,18 @@ def tag_catalogue(request, category):
 
 
 def collections(request):
-    objects = Collection.objects.all()
+    objects = Collection.objects.filter(listed=True)
 
     if len(objects) > 3:
-        best = random.sample(objects, 3)
+        best = random.sample(list(objects), 4)
     else:
         best = objects
 
-    return render(request, 'catalogue/collections.html', {
+    template_name = 'catalogue/collections.html'
+    return render(request, template_name, {
         'objects': objects,
         'best': best,
+        'active_menu_item': 'collections'
     })
 
 
@@ -533,4 +701,4 @@ def ridero_cover(request, slug):
 
 def get_isbn(request, book_format, slug):
     book = Book.objects.get(slug=slug)
-    return HttpResponse(book.extra_info.get('isbn_%s' % book_format))
+    return HttpResponse(book.get_extra_info_json().get('isbn_%s' % book_format))