X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/14002782e6b8c409c74492e0265c2c6c67d0071d..357027375ff8867f42ca34bcbfb5a78b5b185fc3:/apps/catalogue/views.py?ds=inline diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py deleted file mode 100644 index e50e51a51..000000000 --- a/apps/catalogue/views.py +++ /dev/null @@ -1,503 +0,0 @@ -# -*- 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 tempfile -import zipfile -import sys -import pprint -import traceback - -from django.conf import settings -from django.template import RequestContext -from django.shortcuts import render_to_response, get_object_or_404 -from django.http import HttpResponse, HttpResponseRedirect, Http404 -from django.core.urlresolvers import reverse -from django.db.models import Q -from django.contrib.auth.decorators import login_required, user_passes_test -from django.utils.datastructures import SortedDict -from django.views.decorators.http import require_POST -from django.contrib import auth -from django.contrib.auth.forms import UserCreationForm, AuthenticationForm -from django.utils import simplejson -from django.utils.functional import Promise -from django.utils.encoding import force_unicode -from django.views.decorators import cache - -from catalogue import models -from catalogue import forms -from catalogue.utils import split_tags -from newtagging import views as newtagging_views - - -staff_required = user_passes_test(lambda user: user.is_staff) - - -class LazyEncoder(simplejson.JSONEncoder): - def default(self, obj): - if isinstance(obj, Promise): - return force_unicode(obj) - return obj - - -def main_page(request): - if request.user.is_authenticated(): - shelves = models.Tag.objects.filter(category='set', user=request.user) - new_set_form = forms.NewSetForm() - extra_where = "NOT catalogue_tag.category = 'set'" - tags = models.Tag.objects.usage_for_model(models.Book, counts=True, extra={'where': [extra_where]}) - fragment_tags = models.Tag.objects.usage_for_model(models.Fragment, counts=True, - extra={'where': ["catalogue_tag.category = 'theme'"] + [extra_where]}) - categories = split_tags(tags) - - form = forms.SearchForm() - return render_to_response('catalogue/main_page.html', locals(), - context_instance=RequestContext(request)) - - -def book_list(request): - books = models.Book.objects.all() - form = forms.SearchForm() - - books_by_first_letter = SortedDict() - for book in books: - books_by_first_letter.setdefault(book.title[0], []).append(book) - - return render_to_response('catalogue/book_list.html', locals(), - context_instance=RequestContext(request)) - - -def tagged_object_list(request, tags=''): - # Prevent DoS attacks on our database - if len(tags.split('/')) > 6: - raise Http404 - - try: - tags = models.Tag.get_tag_list(tags) - except models.Tag.DoesNotExist: - raise Http404 - - if len([tag for tag in tags if tag.category == 'book']): - raise Http404 - - model = models.Book - shelf = [tag for tag in tags if tag.category == 'set'] - shelf_is_set = (len(tags) == 1 and tags[0].category == 'set') - theme_is_set = len([tag for tag in tags if tag.category == 'theme']) > 0 - if theme_is_set: - model = models.Fragment - only_author = len(tags) == 1 and tags[0].category == 'author' - pd_counter = only_author and tags[0].goes_to_pd() - - user_is_owner = (len(shelf) and request.user.is_authenticated() and request.user == shelf[0].user) - - extra_where = "catalogue_tag.category NOT IN ('set', 'book')" - related_tags = models.Tag.objects.related_for_model(tags, model, counts=True, extra={'where': [extra_where]}) - categories = split_tags(related_tags) - - if not (theme_is_set or shelf_is_set): - model=models.Book.objects.filter(parent=None) - - return newtagging_views.tagged_object_list( - request, - tag_model=models.Tag, - queryset_or_model=model, - tags=tags, - template_name='catalogue/tagged_object_list.html', - extra_context = { - 'categories': categories, - 'shelf_is_set': shelf_is_set, - 'only_author': only_author, - 'pd_counter': pd_counter, - 'user_is_owner': user_is_owner, - 'formats_form': forms.DownloadFormatsForm(), - }, - ) - - -def book_fragments(request, book_slug, theme_slug): - book = get_object_or_404(models.Book, slug=book_slug) - book_tag = get_object_or_404(models.Tag, slug='l-' + book_slug) - theme = get_object_or_404(models.Tag, slug=theme_slug) - fragments = models.Fragment.tagged.with_all([book_tag, theme]) - - form = forms.SearchForm() - return render_to_response('catalogue/book_fragments.html', locals(), - context_instance=RequestContext(request)) - - -def book_detail(request, slug): - try: - book = models.Book.objects.get(slug=slug) - except models.Book.DoesNotExist: - return book_stub_detail(request, slug) - - book_tag = get_object_or_404(models.Tag, slug = 'l-' + slug) - tags = list(book.tags.filter(~Q(category='set'))) - categories = split_tags(tags) - book_children = book.children.all().order_by('parent_number') - extra_where = "catalogue_tag.category = 'theme'" - book_themes = models.Tag.objects.related_for_model(book_tag, models.Fragment, counts=True, extra={'where': [extra_where]}) - extra_info = book.get_extra_info_value() - - form = forms.SearchForm() - return render_to_response('catalogue/book_detail.html', locals(), - context_instance=RequestContext(request)) - - -def book_stub_detail(request, slug): - book = get_object_or_404(models.BookStub, slug=slug) - pd_counter = book.pd - form = forms.SearchForm() - - return render_to_response('catalogue/book_stub_detail.html', locals(), - context_instance=RequestContext(request)) - - -def book_text(request, slug): - book = get_object_or_404(models.Book, slug=slug) - book_themes = {} - for fragment in book.fragments.all(): - for theme in fragment.tags.filter(category='theme'): - book_themes.setdefault(theme, []).append(fragment) - - book_themes = book_themes.items() - book_themes.sort(key=lambda s: s[0].sort_key) - return render_to_response('catalogue/book_text.html', locals(), - context_instance=RequestContext(request)) - - -# ========== -# = Search = -# ========== -def _word_starts_with(name, prefix): - """returns a Q object gettings models having `name` contain a word - starting with `prefix` - """ - kwargs = {} - if settings.DATABASE_ENGINE in ('mysql', 'postgresql_psycopg2', 'postgresql'): - # we must escape `prefix` so that it only matches literally - for special in r'\^$.*+?|(){}[]': - prefix = prefix.replace(special, '\\' + special) - - # we could use a [[:<:]] (word start), - # but we want both `xy` and `(xy` to catch `(xyz)` - kwargs['%s__iregex' % name] = u"(^|[^[:alpha:]])%s" % prefix - else: - # don't know how to do a generic regex - # checking for simple icontain instead - kwargs['%s__icontains' % name] = prefix - return Q(**kwargs) - - -def _tags_starting_with(prefix, user): - book_stubs = models.BookStub.objects.filter(_word_starts_with('title', prefix)) - books = models.Book.objects.filter(_word_starts_with('title', prefix)) - book_stubs = filter(lambda x: x not in books, book_stubs) - tags = models.Tag.objects.filter(_word_starts_with('name', prefix)) - if user.is_authenticated(): - tags = tags.filter(~Q(category='book') & (~Q(category='set') | Q(user=user))) - else: - tags = tags.filter(~Q(category='book') & ~Q(category='set')) - - return list(books) + list(tags) + list(book_stubs) - - -def search(request): - tags = request.GET.get('tags', '') - prefix = request.GET.get('q', '') - - try: - tag_list = models.Tag.get_tag_list(tags) - except: - tag_list = [] - - # Prefix must have at least 2 characters - if len(prefix) < 2: - return HttpResponseRedirect(reverse('catalogue.views.search_no_hits', - kwargs={'tags': '/'.join(tag.slug for tag in tag_list)} - )) - - result = _tags_starting_with(prefix, request.user) - if len(result) > 0: - tag = result[0] - if isinstance(tag, models.Book) or isinstance(tag, models.BookStub): - return HttpResponseRedirect(tag.get_absolute_url()) - else: - tag_list.append(tag) - - return HttpResponseRedirect(reverse('catalogue.views.tagged_object_list', - kwargs={'tags': '/'.join(tag.slug for tag in tag_list)} - )) - else: - return HttpResponseRedirect(reverse('catalogue.views.search_no_hits', - kwargs={'tags': '/'.join(tag.slug for tag in tag_list)} - )) - - -def search_no_hits(request, tags): - try: - tag_list = models.Tag.get_tag_list(tags) - except: - tag_list = [] - - return render_to_response('catalogue/search_no_hits.html', {'tags':tag_list}, - context_instance=RequestContext(request)) - - -search_no_hits - -def tags_starting_with(request): - prefix = request.GET.get('q', '') - # Prefix must have at least 2 characters - if len(prefix) < 2: - return HttpResponse('') - - return HttpResponse('\n'.join(tag.name for tag in _tags_starting_with(prefix, request.user))) - - -# ==================== -# = Shelf management = -# ==================== -@login_required -@cache.never_cache -def user_shelves(request): - shelves = models.Tag.objects.filter(category='set', user=request.user) - new_set_form = forms.NewSetForm() - return render_to_response('catalogue/user_shelves.html', locals(), - context_instance=RequestContext(request)) - -@cache.never_cache -def book_sets(request, slug): - book = get_object_or_404(models.Book, slug=slug) - user_sets = models.Tag.objects.filter(category='set', user=request.user) - book_sets = book.tags.filter(category='set', user=request.user) - - if not request.user.is_authenticated(): - return HttpResponse('
Aby zarzÄ dzaÄ swoimi póÅkami, musisz siÄ zalogowaÄ.
') - - if request.method == 'POST': - form = forms.ObjectSetsForm(book, request.user, request.POST) - if form.is_valid(): - old_shelves = list(book.tags.filter(category='set')) - new_shelves = [models.Tag.objects.get(pk=id) for id in form.cleaned_data['set_ids']] - - for shelf in [shelf for shelf in old_shelves if shelf not in new_shelves]: - shelf.book_count -= 1 - shelf.save() - - for shelf in [shelf for shelf in new_shelves if shelf not in old_shelves]: - shelf.book_count += 1 - shelf.save() - - book.tags = new_shelves + list(book.tags.filter(~Q(category='set') | ~Q(user=request.user))) - if request.is_ajax(): - return HttpResponse('PóÅki zostaÅy zapisane.
') - else: - return HttpResponseRedirect('/') - else: - form = forms.ObjectSetsForm(book, request.user) - new_set_form = forms.NewSetForm() - - return render_to_response('catalogue/book_sets.html', locals(), - context_instance=RequestContext(request)) - - -@login_required -@require_POST -@cache.never_cache -def remove_from_shelf(request, shelf, book): - book = get_object_or_404(models.Book, slug=book) - shelf = get_object_or_404(models.Tag, slug=shelf, category='set', user=request.user) - - if shelf in book.tags: - models.Tag.objects.remove_tag(book, shelf) - - shelf.book_count -= 1 - shelf.save() - - return HttpResponse('UsuniÄto') - else: - return HttpResponse('KsiÄ Å¼ki nie ma na póÅce') - - -def collect_books(books): - """ - Returns all real books in collection. - """ - result = [] - for book in books: - if len(book.children.all()) == 0: - result.append(book) - else: - result += collect_books(book.children.all()) - return result - - -@cache.never_cache -def download_shelf(request, slug): - """" - Create a ZIP archive on disk and transmit it in chunks of 8KB, - without loading the whole file into memory. A similar approach can - be used for large dynamic PDF files. - """ - shelf = get_object_or_404(models.Tag, slug=slug, category='set') - - formats = [] - form = forms.DownloadFormatsForm(request.GET) - if form.is_valid(): - formats = form.cleaned_data['formats'] - if len(formats) == 0: - formats = ['pdf', 'odt', 'txt', 'mp3', 'ogg'] - - # Create a ZIP archive - temp = temp = tempfile.TemporaryFile() - archive = zipfile.ZipFile(temp, 'w') - - for book in collect_books(models.Book.tagged.with_all(shelf)): - if 'pdf' in formats and book.pdf_file: - filename = book.pdf_file.path - archive.write(filename, str('%s.pdf' % book.slug)) - if 'odt' in formats and book.odt_file: - filename = book.odt_file.path - archive.write(filename, str('%s.odt' % book.slug)) - if 'txt' in formats and book.txt_file: - filename = book.txt_file.path - archive.write(filename, str('%s.txt' % book.slug)) - if 'mp3' in formats and book.mp3_file: - filename = book.mp3_file.path - archive.write(filename, str('%s.mp3' % book.slug)) - if 'ogg' in formats and book.ogg_file: - filename = book.ogg_file.path - archive.write(filename, str('%s.ogg' % book.slug)) - archive.close() - - response = HttpResponse(content_type='application/zip', mimetype='application/x-zip-compressed') - response['Content-Disposition'] = 'attachment; filename=%s.zip' % shelf.sort_key - response['Content-Length'] = temp.tell() - - temp.seek(0) - response.write(temp.read()) - return response - - -@cache.never_cache -def shelf_book_formats(request, shelf): - """" - Returns a list of formats of books in shelf. - """ - shelf = get_object_or_404(models.Tag, slug=shelf, category='set') - - formats = {'pdf': False, 'odt': False, 'txt': False, 'mp3': False, 'ogg': False} - - for book in collect_books(models.Book.tagged.with_all(shelf)): - if book.pdf_file: - formats['pdf'] = True - if book.odt_file: - formats['odt'] = True - if book.txt_file: - formats['txt'] = True - if book.mp3_file: - formats['mp3'] = True - if book.ogg_file: - formats['ogg'] = True - - return HttpResponse(LazyEncoder().encode(formats)) - - -@login_required -@require_POST -@cache.never_cache -def new_set(request): - new_set_form = forms.NewSetForm(request.POST) - if new_set_form.is_valid(): - new_set = new_set_form.save(request.user) - - if request.is_ajax(): - return HttpResponse(u'PóÅka %s zostaÅa utworzona
' % new_set) - else: - return HttpResponseRedirect('/') - - return HttpResponseRedirect('/') - - -@login_required -@require_POST -@cache.never_cache -def delete_shelf(request, slug): - user_set = get_object_or_404(models.Tag, slug=slug, category='set', user=request.user) - user_set.delete() - - if request.is_ajax(): - return HttpResponse(u'PóÅka %s zostaÅa usuniÄta
' % user_set.name) - else: - return HttpResponseRedirect('/') - - -# ================== -# = Authentication = -# ================== -@require_POST -@cache.never_cache -def login(request): - form = AuthenticationForm(data=request.POST, prefix='login') - if form.is_valid(): - auth.login(request, form.get_user()) - response_data = {'success': True, 'errors': {}} - else: - response_data = {'success': False, 'errors': form.errors} - return HttpResponse(LazyEncoder(ensure_ascii=False).encode(response_data)) - - -@require_POST -@cache.never_cache -def register(request): - registration_form = UserCreationForm(request.POST, prefix='registration') - if registration_form.is_valid(): - user = registration_form.save() - user = auth.authenticate( - username=registration_form.cleaned_data['username'], - password=registration_form.cleaned_data['password1'] - ) - auth.login(request, user) - response_data = {'success': True, 'errors': {}} - else: - response_data = {'success': False, 'errors': registration_form.errors} - return HttpResponse(LazyEncoder(ensure_ascii=False).encode(response_data)) - - -@cache.never_cache -def logout_then_redirect(request): - auth.logout(request) - return HttpResponseRedirect(request.GET.get('next', '/')) - - - -# ========= -# = Admin = -# ========= -@login_required -@staff_required -def import_book(request): - """docstring for import_book""" - book_import_form = forms.BookImportForm(request.POST, request.FILES) - if book_import_form.is_valid(): - try: - book_import_form.save() - except: - info = sys.exc_info() - exception = pprint.pformat(info[1]) - tb = '\n'.join(traceback.format_tb(info[2])) - return HttpResponse("An error occurred: %s\n\n%s" % (exception, tb), mimetype='text/plain') - return HttpResponse("Book imported successfully") - else: - return HttpResponse("Error importing file: %r" % book_import_form.errors) - - - -def clock(request): - """ Provides server time for jquery.countdown, - in a format suitable for Date.parse() - """ - from datetime import datetime - return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S'))