Responsive images.
[wolnelektury.git] / src / catalogue / templatetags / catalogue_tags.py
index 941ab63..b582f89 100644 (file)
@@ -1,43 +1,27 @@
-# -*- 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.
 #
 from random import randint, random
-from urlparse import urlparse
+from urllib.parse import urlparse
 from django.contrib.contenttypes.models import ContentType
 
 from django.conf import settings
 from django import template
 from django.template import Node, Variable, Template, Context
-from django.core.urlresolvers import reverse
-from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
+from django.urls import reverse
 from django.utils.cache import add_never_cache_headers
+from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext as _
 
-from ssify import ssi_variable
+from catalogue.helpers import get_audiobook_tags
 from catalogue.models import Book, BookMedia, Fragment, Tag, Source
 from catalogue.constants import LICENSES
+from club.models import Membership
 from picture.models import Picture
 
 register = template.Library()
 
 
-class RegistrationForm(UserCreationForm):
-    def as_ul(self):
-        """Returns this form rendered as HTML <li>s -- excluding the <ul></ul>."""
-        return self._html_output(
-            u'<li>%(errors)s%(label)s %(field)s<span class="help-text">%(help_text)s</span></li>', u'<li>%s</li>',
-            '</li>', u' %s', False)
-
-
-class LoginForm(AuthenticationForm):
-    def as_ul(self):
-        """Returns this form rendered as HTML <li>s -- excluding the <ul></ul>."""
-        return self._html_output(
-            u'<li>%(errors)s%(label)s %(field)s<span class="help-text">%(help_text)s</span></li>', u'<li>%s</li>',
-            '</li>', u' %s', False)
-
-
 def iterable(obj):
     try:
         iter(obj)
@@ -58,8 +42,8 @@ def html_title_from_tags(tags):
     if len(tags) < 2:
         return title_from_tags(tags)
     template = Template("{{ category }}: <a href='{{ tag.get_absolute_url }}'>{{ tag.name }}</a>")
-    return capfirst(",<br/>".join(
-        template.render(Context({'tag': tag, 'category': _(tag.category)})) for tag in tags))
+    return mark_safe(capfirst(",<br/>".join(
+        template.render(Context({'tag': tag, 'category': _(tag.category)})) for tag in tags)))
 
 
 def simple_title(tags):
@@ -71,7 +55,7 @@ def simple_title(tags):
 
 @register.simple_tag
 def book_title(book, html_links=False):
-    return book.pretty_title(html_links)
+    return mark_safe(book.pretty_title(html_links))
 
 
 @register.simple_tag
@@ -97,48 +81,48 @@ def title_from_tags(tags):
 
     self = split_tags(tags)
 
-    title = u''
+    title = ''
 
     # Specjalny przypadek oglądania wszystkich lektur na danej półce
     if len(self) == 1 and 'set' in self:
-        return u'Półka %s' % self['set']
+        return 'Półka %s' % self['set']
 
     # Specjalny przypadek "Twórczość w pozytywizmie", wtedy gdy tylko epoka
     # jest wybrana przez użytkownika
     if 'epoch' in self and len(self) == 1:
-        text = u'Twórczość w %s' % flection.get_case(unicode(self['epoch']), u'miejscownik')
+        text = 'Twórczość w %s' % flection.get_case(str(self['epoch']), 'miejscownik')
         return capfirst(text)
 
     # Specjalny przypadek "Dramat w twórczości Sofoklesa", wtedy gdy podane
     # są tylko rodzaj literacki i autor
     if 'kind' in self and 'author' in self and len(self) == 2:
-        text = u'%s w twórczości %s' % (
-            unicode(self['kind']), flection.get_case(unicode(self['author']), u'dopełniacz'))
+        text = '%s w twórczości %s' % (
+            str(self['kind']), flection.get_case(str(self['author']), 'dopełniacz'))
         return capfirst(text)
 
     # Przypadki ogólniejsze
     if 'theme' in self:
-        title += u'Motyw %s' % unicode(self['theme'])
+        title += 'Motyw %s' % str(self['theme'])
 
     if 'genre' in self:
         if 'theme' in self:
-            title += u' w %s' % flection.get_case(unicode(self['genre']), u'miejscownik')
+            title += ' w %s' % flection.get_case(str(self['genre']), 'miejscownik')
         else:
-            title += unicode(self['genre'])
+            title += str(self['genre'])
 
     if 'kind' in self or 'author' in self or 'epoch' in self:
         if 'genre' in self or 'theme' in self:
             if 'kind' in self:
-                title += u' w %s ' % flection.get_case(unicode(self['kind']), u'miejscownik')
+                title += ' w %s ' % flection.get_case(str(self['kind']), 'miejscownik')
             else:
-                title += u' w twórczości '
+                title += ' w twórczości '
         else:
-            title += u'%s ' % unicode(self.get('kind', u'twórczość'))
+            title += '%s ' % str(self.get('kind', 'twórczość'))
 
     if 'author' in self:
-        title += flection.get_case(unicode(self['author']), u'dopełniacz')
+        title += flection.get_case(str(self['author']), 'dopełniacz')
     elif 'epoch' in self:
-        title += flection.get_case(unicode(self['epoch']), u'dopełniacz')
+        title += flection.get_case(str(self['epoch']), 'dopełniacz')
 
     return capfirst(title)
 
@@ -150,7 +134,7 @@ def book_tree(book_list, books_by_parent):
         ) for book in book_list)
 
     if text:
-        return "<ol>%s</ol>" % text
+        return mark_safe("<ol>%s</ol>" % text)
     else:
         return ''
 
@@ -163,14 +147,14 @@ def audiobook_tree(book_list, books_by_parent):
     ) for book in book_list)
 
     if text:
-        return "<ol>%s</ol>" % text
+        return mark_safe("<ol>%s</ol>" % text)
     else:
         return ''
 
 
 @register.simple_tag
 def book_tree_texml(book_list, books_by_parent, depth=1):
-    return "".join("""
+    return mark_safe("".join("""
             <cmd name='hspace'><parm>%(depth)dem</parm></cmd>%(title)s
             <spec cat='align' /><cmd name="note"><parm>%(audiences)s</parm></cmd>
             <spec cat='align' /><cmd name="note"><parm>%(audiobook)s</parm></cmd>
@@ -182,7 +166,7 @@ def book_tree_texml(book_list, books_by_parent, depth=1):
                 "audiences": ", ".join(book.audiences_pl()),
                 "audiobook": "audiobook" if book.has_media('mp3') else "",
                 "children": book_tree_texml(books_by_parent.get(book.id, ()), books_by_parent, depth + 1)
-            } for book in book_list)
+            } for book in book_list))
 
 
 @register.simple_tag
@@ -195,7 +179,7 @@ def book_tree_csv(author, book_list, books_by_parent, depth=1, max_depth=3, deli
         except ValueError:
             return s
 
-    return "".join("""%(author)s%(d)s%(preindent)s%(title)s%(d)s%(postindent)s%(audiences)s%(d)s%(audiobook)s
+    return mark_safe("".join("""%(author)s%(d)s%(preindent)s%(title)s%(d)s%(postindent)s%(audiences)s%(d)s%(audiobook)s
 %(children)s""" % {
                 "d": delimeter,
                 "preindent": delimeter * (depth - 1),
@@ -206,7 +190,7 @@ def book_tree_csv(author, book_list, books_by_parent, depth=1, max_depth=3, deli
                 "audiences": ", ".join(book.audiences_pl()),
                 "audiobook": "audiobook" if book.has_media('mp3') else "",
                 "children": book_tree_csv(author, books_by_parent.get(book.id, ()), books_by_parent, depth + 1)
-            } for book in book_list)
+            } for book in book_list))
 
 
 @register.simple_tag
@@ -226,53 +210,29 @@ def all_editors(extra_info):
                      for person in sorted(set(editors)))
 
 
-@register.simple_tag
-def user_creation_form():
-    return RegistrationForm(prefix='registration').as_ul()
-
-
-@register.simple_tag
-def authentication_form():
-    return LoginForm(prefix='login').as_ul()
-
-
 @register.tag
 def catalogue_url(parser, token):
     bits = token.split_contents()
 
     tags_to_add = []
     tags_to_remove = []
-    for bit in bits[1:]:
-        if bit[0] == '-':
-            tags_to_remove.append(bit[1:])
-        else:
-            tags_to_add.append(bit)
-
-    return CatalogueURLNode(tags_to_add, tags_to_remove)
-
-
-@register.tag
-def catalogue_url_gallery(parser, token):
-    bits = token.split_contents()
-
-    tags_to_add = []
-    tags_to_remove = []
-    for bit in bits[1:]:
+    for bit in bits[2:]:
         if bit[0] == '-':
             tags_to_remove.append(bit[1:])
         else:
             tags_to_add.append(bit)
 
-    return CatalogueURLNode(tags_to_add, tags_to_remove, gallery=True)
+    return CatalogueURLNode(bits[1], tags_to_add, tags_to_remove)
 
 
 class CatalogueURLNode(Node):
-    def __init__(self, tags_to_add, tags_to_remove, gallery=False):
+    def __init__(self, list_type, tags_to_add, tags_to_remove):
         self.tags_to_add = [Variable(tag) for tag in tags_to_add]
         self.tags_to_remove = [Variable(tag) for tag in tags_to_remove]
-        self.gallery = gallery
+        self.list_type_var = Variable(list_type)
 
     def render(self, context):
+        list_type = self.list_type_var.resolve(context)
         tags_to_add = []
         tags_to_remove = []
 
@@ -298,17 +258,23 @@ class CatalogueURLNode(Node):
                 pass
 
         if len(tag_slugs) > 0:
-            if self.gallery:
+            if list_type == 'gallery':
                 return reverse('tagged_object_list_gallery', kwargs={'tags': '/'.join(tag_slugs)})
+            elif list_type == 'audiobooks':
+                return reverse('tagged_object_list_audiobooks', kwargs={'tags': '/'.join(tag_slugs)})
             else:
                 return reverse('tagged_object_list', kwargs={'tags': '/'.join(tag_slugs)})
         else:
-            return reverse('book_list')
+            if list_type == 'gallery':
+                return reverse('gallery')
+            elif list_type == 'audiobooks':
+                return reverse('audiobook_list')
+            else:
+                return reverse('book_list')
 
 
-@register.inclusion_tag('catalogue/tag_list.html')
-def tag_list(tags, choices=None, category=None, gallery=False):
-    print(tags, choices, category)
+# @register.inclusion_tag('catalogue/tag_list.html')
+def tag_list(tags, choices=None, category=None, list_type='books'):
     if choices is None:
         choices = []
 
@@ -319,25 +285,39 @@ def tag_list(tags, choices=None, category=None, gallery=False):
 
     if len(tags) == 1 and category not in [t.category for t in choices]:
         one_tag = tags[0]
+    else:
+        one_tag = None
 
     if category is not None:
         other = Tag.objects.filter(category=category).exclude(pk__in=[t.pk for t in tags])\
             .exclude(pk__in=[t.pk for t in category_choices])
         # Filter out empty tags.
-        ct = ContentType.objects.get_for_model(Picture if gallery else Book)
+        ct = ContentType.objects.get_for_model(Picture if list_type == 'gallery' else Book)
         other = other.filter(items__content_type=ct).distinct()
+        if list_type == 'audiobooks':
+            other = other.filter(id__in=get_audiobook_tags())
+        other = other.only('name', 'slug', 'category')
+    else:
+        other = []
 
-    return locals()
+    return {
+        'one_tag': one_tag,
+        'choices': choices,
+        'category_choices': category_choices,
+        'tags': tags,
+        'other': other,
+        'list_type': list_type,
+    }
 
 
 @register.inclusion_tag('catalogue/inline_tag_list.html')
-def inline_tag_list(tags, choices=None, category=None, gallery=False):
-    return tag_list(tags, choices, category, gallery)
+def inline_tag_list(tags, choices=None, category=None, list_type='books'):
+    return tag_list(tags, choices, category, list_type)
 
 
 @register.inclusion_tag('catalogue/collection_list.html')
 def collection_list(collections):
-    return locals()
+    return {'collections': collections}
 
 
 @register.inclusion_tag('catalogue/book_info.html')
@@ -351,14 +331,17 @@ def book_info(book):
 @register.inclusion_tag('catalogue/work-list.html', takes_context=True)
 def work_list(context, object_list):
     request = context.get('request')
-    return locals()
+    return {'object_list': object_list, 'request': request}
 
 
 @register.inclusion_tag('catalogue/plain_list.html', takes_context=True)
-def plain_list(context, object_list, with_initials=True, by_author=False, choice=None, book=None, gallery=False,
-               paged=True):
+def plain_list(context, object_list, with_initials=True, by_author=False, choice=None, book=None, list_type='books',
+               paged=True, initial_blocks=False):
     names = [('', [])]
     last_initial = None
+    if len(object_list) < settings.CATALOGUE_MIN_INITIALS and not by_author:
+        with_initials = False
+        initial_blocks = False
     for obj in object_list:
         if with_initials:
             if by_author:
@@ -367,9 +350,18 @@ def plain_list(context, object_list, with_initials=True, by_author=False, choice
                 initial = obj.get_initial().upper()
             if initial != last_initial:
                 last_initial = initial
-                names.append((obj.author_str() if by_author else initial, []))
+                names.append((obj.author_unicode() if by_author else initial, []))
         names[-1][1].append(obj)
-    return locals()
+    if names[0] == ('', []):
+        del names[0]
+    return {
+        'paged': paged,
+        'names': names,
+        'initial_blocks': initial_blocks,
+        'book': book,
+        'list_type': list_type,
+        'choice': choice,
+    }
 
 
 # TODO: These are no longer just books.
@@ -387,7 +379,7 @@ def related_books(context, instance, limit=6, random=1, taken=0):
         # Reserve one spot for an image.
         max_books -= 1
 
-    books_qs = Book.objects.all()
+    books_qs = Book.objects.filter(findable=True)
     if not is_picture:
         books_qs = books_qs.exclude(common_slug=instance.common_slug).exclude(ancestor=instance)
     books = Book.tagged.related_to(instance, books_qs)[:max_books]
@@ -409,9 +401,9 @@ def related_books(context, instance, limit=6, random=1, taken=0):
 
 
 @register.simple_tag
-def download_audio(book, daisy=True):
+def download_audio(book, daisy=True, mp3=True):
     links = []
-    if book.has_media('mp3'):
+    if mp3 and book.has_media('mp3'):
         links.append("<a href='%s'>%s</a>" % (
             reverse('download_zip_mp3', args=[book.slug]), BookMedia.formats['mp3'].name))
     if book.has_media('ogg'):
@@ -420,7 +412,7 @@ def download_audio(book, daisy=True):
     if daisy and book.has_media('daisy'):
         for dsy in book.get_media('daisy'):
             links.append("<a href='%s'>%s</a>" % (dsy.file.url, BookMedia.formats['daisy'].name))
-    return "".join(links)
+    return mark_safe("".join(links))
 
 
 @register.inclusion_tag("catalogue/snippets/custom_pdf_link_li.html")
@@ -461,35 +453,32 @@ def source_name(url):
     return source.name or netloc
 
 
-@ssi_variable(register, patch_response=[add_never_cache_headers])
-def catalogue_random_book(request, exclude_ids):
+@register.simple_tag
+def catalogue_random_book(exclude_ids):
     from .. import app_settings
     if random() < app_settings.RELATED_RANDOM_PICTURE_CHANCE:
         return None
-    queryset = Book.objects.exclude(pk__in=exclude_ids)
+    queryset = Book.objects.filter(findable=True).exclude(pk__in=exclude_ids)
     count = queryset.count()
     if count:
-        return queryset[randint(0, count - 1)].pk
+        return queryset[randint(0, count - 1)]
     else:
         return None
 
 
-@ssi_variable(register, patch_response=[add_never_cache_headers])
-def choose_fragment(request, book_id=None, tag_ids=None, unless=False):
-    if unless:
-        return None
-
-    if book_id is not None:
-        fragment = Book.objects.get(pk=book_id).choose_fragment()
+@register.simple_tag
+def choose_fragment(book=None, tag_ids=None):
+    if book is not None:
+        fragment = book.choose_fragment()
     else:
         if tag_ids is not None:
             tags = Tag.objects.filter(pk__in=tag_ids)
-            fragments = Fragment.tagged.with_all(tags).order_by().only('id')
+            fragments = Fragment.tagged.with_all(tags).filter(book__findable=True).order_by().only('id')
         else:
-            fragments = Fragment.objects.all().order_by().only('id')
+            fragments = Fragment.objects.filter(book__findable=True).order_by().only('id')
         fragment_count = fragments.count()
         fragment = fragments[randint(0, fragment_count - 1)] if fragment_count else None
-    return fragment.pk if fragment is not None else None
+    return fragment
 
 
 @register.filter
@@ -497,3 +486,28 @@ def strip_tag(html, tag_name):
     # docelowo może być warto zainstalować BeautifulSoup do takich rzeczy
     import re
     return re.sub(r"<.?%s\b[^>]*>" % tag_name, "", html)
+
+
+@register.filter
+def status(book, user):
+    if not book.preview:
+        return 'open'
+    elif Membership.is_active_for(user):
+        return 'preview'
+    else:
+        return 'closed'
+
+
+@register.inclusion_tag('catalogue/snippets/content_warning.html')
+def content_warning(book):
+    warnings_def = {
+        'wulgaryzmy': _('vulgar language'),
+    }
+    warnings = book.get_extra_info_json().get('content_warnings', [])
+    warnings = sorted(
+        warnings_def.get(w, w)
+        for w in warnings
+    )
+    return {
+        "warnings": warnings
+    }