X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/0cae17bec6d31806615fae59a5b3945016285fbe..d99d71844b7b97800dcab7cbb81c3a4185acbb48:/apps/catalogue/views.py?ds=sidebyside diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py index ad9bde747..124cd9313 100644 --- a/apps/catalogue/views.py +++ b/apps/catalogue/views.py @@ -1,10 +1,25 @@ # -*- 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 tarfile +import sys +import pprint +import traceback +import re +import itertools +from operator import itemgetter +from datetime import datetime + +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 +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 @@ -12,11 +27,21 @@ 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.utils.http import urlquote_plus +from django.views.decorators import cache +from django.utils.translation import ugettext as _ +from django.views.generic.list_detail import object_list +from django.template.defaultfilters import slugify from catalogue import models from catalogue import forms from catalogue.utils import split_tags from newtagging import views as newtagging_views +from pdcounter import models as pdcounter_models +from pdcounter import views as pdcounter_views +from slughifi import slughifi + + +staff_required = user_passes_test(lambda user: user.is_staff) class LazyEncoder(simplejson.JSONEncoder): @@ -25,220 +50,756 @@ class LazyEncoder(simplejson.JSONEncoder): return force_unicode(obj) return obj - -def search(request): - query = request.GET.get('q', '') - tags = request.GET.get('tags', '') - if tags == '': - tags = [] - - try: - tag_list = models.Tag.get_tag_list(tags) - tag = models.Tag.objects.get(name=query) - except models.Tag.DoesNotExist: - try: - book = models.Book.objects.get(title=query) - return HttpResponseRedirect(book.get_absolute_url()) - except models.Book.DoesNotExist: - return HttpResponseRedirect(reverse('catalogue.views.main_page')) - else: - tag_list.append(tag) - return HttpResponseRedirect(reverse('catalogue.views.tagged_object_list', - kwargs={'tags': '/'.join(tag.slug for tag in tag_list)} - )) - - -def tags_starting_with(request): - try: - prefix = request.GET['q'] - if len(prefix) < 2: - raise KeyError - - books = models.Book.objects.filter(title__icontains=prefix) - tags = models.Tag.objects.filter(name__icontains=prefix) - if request.user.is_authenticated(): - tags = tags.filter(~Q(category='set') | Q(user=request.user)) - else: - tags = tags.filter(~Q(category='set')) - - completions = [book.title for book in books] + [tag.name for tag in tags] - - return HttpResponse('\n'.join(completions)) - - except KeyError: - return HttpResponse('') +# shortcut for JSON reponses +class JSONResponse(HttpResponse): + def __init__(self, data={}, callback=None, **kwargs): + # get rid of mimetype + kwargs.pop('mimetype', None) + data = simplejson.dumps(data) + if callback: + data = callback + "(" + data + ");" + super(JSONResponse, self).__init__(data, mimetype="application/json", **kwargs) -def main_page(request): +def main_page(request): if request.user.is_authenticated(): - extra_where = '(NOT catalogue_tag.category = "set" OR catalogue_tag.user_id = %d)' % request.user.id - else: - 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"']}) + shelves = models.Tag.objects.filter(category='set', user=request.user) + new_set_form = forms.NewSetForm() + + tags = models.Tag.objects.exclude(category__in=('set', 'book')) + for tag in tags: + tag.count = tag.get_count() categories = split_tags(tags) - + fragment_tags = categories.get('theme', []) + 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() +def book_list(request, filter=None, template_name='catalogue/book_list.html'): + """ generates a listing of all books, optionally filtered with a test function """ + 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(), + + books_by_parent = {} + books = models.Book.objects.all().order_by('parent_number', 'title').only('title', 'parent', 'slug') + if filter: + books = books.filter(filter).distinct() + book_ids = set((book.pk for book in books)) + for book in books: + parent = book.parent_id + if parent not in book_ids: + parent = None + books_by_parent.setdefault(parent, []).append(book) + else: + for book in books: + books_by_parent.setdefault(book.parent_id, []).append(book) + + orphans = [] + books_by_author = SortedDict() + books_nav = SortedDict() + for tag in models.Tag.objects.filter(category='author'): + books_by_author[tag] = [] + + for book in books_by_parent.get(None,()): + authors = list(book.tags.filter(category='author')) + if authors: + for author in authors: + books_by_author[author].append(book) + else: + orphans.append(book) + + for tag in books_by_author: + if books_by_author[tag]: + books_nav.setdefault(tag.sort_key[0], []).append(tag) + + return render_to_response(template_name, locals(), context_instance=RequestContext(request)) +def audiobook_list(request): + return book_list(request, Q(medias__type='mp3') | Q(medias__type='ogg'), + template_name='catalogue/audiobook_list.html') + + +def daisy_list(request): + return book_list(request, Q(medias__type='daisy'), + template_name='catalogue/daisy_list.html') + + +def differentiate_tags(request, tags, ambiguous_slugs): + beginning = '/'.join(tag.url_chunk for tag in tags) + unparsed = '/'.join(ambiguous_slugs[1:]) + options = [] + for tag in models.Tag.objects.exclude(category='book').filter(slug=ambiguous_slugs[0]): + options.append({ + '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)) + + def tagged_object_list(request, tags=''): try: tags = models.Tag.get_tag_list(tags) except models.Tag.DoesNotExist: + chunks = tags.split('/') + if len(chunks) == 2 and chunks[0] == 'autor': + return pdcounter_views.author_detail(request, chunks[1]) + else: + raise Http404 + except models.Tag.MultipleObjectsReturned, e: + return differentiate_tags(request, e.tags, e.ambiguous_slugs) + + try: + if len(tags) > settings.MAX_TAG_LIST: + raise Http404 + except AttributeError: + pass + + if len([tag for tag in tags if tag.category == 'book']): raise Http404 - - model = models.Book - theme_is_set = any(tag.category == 'theme' for tag in tags) + + theme_is_set = [tag for tag in tags if tag.category == 'theme'] + shelf_is_set = [tag for tag in tags if tag.category == 'set'] + only_shelf = shelf_is_set and len(tags) == 1 + only_my_shelf = only_shelf and request.user.is_authenticated() and request.user == tags[0].user + + objects = only_author = None + categories = {} + if theme_is_set: - model = models.Fragment - - if request.user.is_authenticated(): - extra_where = '(NOT catalogue_tag.category = "set" OR catalogue_tag.user_id = %d)' % request.user.id + shelf_tags = [tag for tag in tags if tag.category == 'set'] + fragment_tags = [tag for tag in tags if tag.category != 'set'] + fragments = models.Fragment.tagged.with_all(fragment_tags) + + if shelf_tags: + books = models.Book.tagged.with_all(shelf_tags).order_by() + l_tags = models.Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in books]) + fragments = models.Fragment.tagged.with_any(l_tags, fragments) + + # newtagging goes crazy if we just try: + #related_tags = models.Tag.objects.usage_for_queryset(fragments, counts=True, + # extra={'where': ["catalogue_tag.category != 'book'"]}) + fragment_keys = [fragment.pk for fragment in fragments] + if fragment_keys: + related_tags = models.Fragment.tags.usage(counts=True, + filters={'pk__in': fragment_keys}, + extra={'where': ["catalogue_tag.category != 'book'"]}) + related_tags = (tag for tag in related_tags if tag not in fragment_tags) + categories = split_tags(related_tags) + + objects = fragments else: - extra_where = 'NOT catalogue_tag.category = "set"' - related_tags = models.Tag.objects.related_for_model(tags, model, counts=True, extra={'where': [extra_where]}) - categories = split_tags(related_tags) - - return newtagging_views.tagged_object_list( + # get relevant books and their tags + objects = models.Book.tagged.with_all(tags) + if not shelf_is_set: + # eliminate descendants + l_tags = models.Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in objects]) + descendants_keys = [book.pk for book in models.Book.tagged.with_any(l_tags)] + if descendants_keys: + objects = objects.exclude(pk__in=descendants_keys) + + # get related tags from `tag_counter` and `theme_counter` + related_counts = {} + tags_pks = [tag.pk for tag in tags] + for book in objects: + for tag_pk, value in itertools.chain(book.tag_counter.iteritems(), book.theme_counter.iteritems()): + if tag_pk in tags_pks: + continue + related_counts[tag_pk] = related_counts.get(tag_pk, 0) + value + related_tags = models.Tag.objects.filter(pk__in=related_counts.keys()) + related_tags = [tag for tag in related_tags if tag not in tags] + for tag in related_tags: + tag.count = related_counts[tag.pk] + + categories = split_tags(related_tags) + del related_tags + + if not objects: + only_author = len(tags) == 1 and tags[0].category == 'author' + objects = models.Book.objects.none() + + return object_list( request, - tag_model=models.Tag, - queryset_or_model=model, - tags=tags, + objects, template_name='catalogue/tagged_object_list.html', - extra_context = {'categories': categories }, + extra_context={ + 'categories': categories, + 'only_shelf': only_shelf, + 'only_author': only_author, + 'only_my_shelf': only_my_shelf, + 'formats_form': forms.DownloadFormatsForm(), + + 'tags': tags, + } ) +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, category='book') + theme = get_object_or_404(models.Tag, slug=theme_slug, category='theme') + 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): - book = get_object_or_404(models.Book, slug=slug) + try: + book = models.Book.objects.get(slug=slug) + except models.Book.DoesNotExist: + return pdcounter_views.book_stub_detail(request, slug) + + book_tag = book.book_tag() tags = list(book.tags.filter(~Q(category='set'))) categories = split_tags(tags) + book_children = book.children.all().order_by('parent_number', 'title') + _book = book + parents = [] + while _book.parent: + parents.append(_book.parent) + _book = _book.parent + parents = reversed(parents) + + theme_counter = book.theme_counter + book_themes = models.Tag.objects.filter(pk__in=theme_counter.keys()) + for tag in book_themes: + tag.count = theme_counter[tag.pk] + + extra_info = book.get_extra_info_value() + + form = forms.SearchForm() return render_to_response('catalogue/book_detail.html', locals(), context_instance=RequestContext(request)) -def logout_then_redirect(request): - auth.logout(request) - return HttpResponseRedirect(request.GET.get('next', '/')) +def book_text(request, slug): + book = get_object_or_404(models.Book, slug=slug) + if not book.has_html_file(): + raise Http404 + 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)) -@require_POST -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'] +# ========== +# = Search = +# ========== + +def _no_diacritics_regexp(query): + """ returns a regexp for searching for a query without diacritics + + should be locale-aware """ + names = { + u'a':u'aÄ Ä', u'c':u'cÄÄ', u'e':u'eÄÄ', u'l': u'lÅÅ', u'n':u'nÅÅ', u'o':u'oóÃ', u's':u'sÅÅ', u'z':u'zźżŹŻ', + u'Ä ':u'Ä Ä', u'Ä':u'ÄÄ', u'Ä':u'ÄÄ', u'Å': u'ÅÅ', u'Å':u'ÅÅ', u'ó':u'óÃ', u'Å':u'ÅÅ', u'ź':u'źŹ', u'ż':u'żŻ' + } + def repl(m): + l = m.group() + return u"(%s)" % '|'.join(names[l]) + return re.sub(u'[%s]' % (u''.join(names.keys())), repl, query) + +def unicode_re_escape(query): + """ Unicode-friendly version of re.escape """ + return re.sub('(?u)(\W)', r'\\\1', query) + +def _word_starts_with(name, prefix): + """returns a Q object getting models having `name` contain a word + starting with `prefix` + + We define word characters as alphanumeric and underscore, like in JS. + + Works for MySQL, PostgreSQL, Oracle. + For SQLite, _sqlite* version is substituted for this. + """ + kwargs = {} + + prefix = _no_diacritics_regexp(unicode_re_escape(prefix)) + # can't use [[:<:]] (word start), + # but we want both `xy` and `(xy` to catch `(xyz)` + kwargs['%s__iregex' % name] = u"(^|[^[:alnum:]_])%s" % prefix + + return Q(**kwargs) + + +def _word_starts_with_regexp(prefix): + prefix = _no_diacritics_regexp(unicode_re_escape(prefix)) + return ur"(^|(?<=[^\wÄ ÄÄÅÅóÅźżÄÄÄÅÅÃÅŹŻ]))%s" % prefix + + +def _sqlite_word_starts_with(name, prefix): + """ version of _word_starts_with for SQLite + + SQLite in Django uses Python re module + """ + kwargs = {} + kwargs['%s__iregex' % name] = _word_starts_with_regexp(prefix) + return Q(**kwargs) + + +if hasattr(settings, 'DATABASES'): + if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3': + _word_starts_with = _sqlite_word_starts_with +elif settings.DATABASE_ENGINE == 'sqlite3': + _word_starts_with = _sqlite_word_starts_with + + +class App(): + def __init__(self, name, view): + self.name = name + self._view = view + self.lower = name.lower() + self.category = 'application' + def view(self): + return reverse(*self._view) + +_apps = ( + App(u'LeÅmianator', (u'lesmianator', )), + ) + + +def _tags_starting_with(prefix, user=None): + prefix = prefix.lower() + # PD counter + book_stubs = pdcounter_models.BookStub.objects.filter(_word_starts_with('title', prefix)) + authors = pdcounter_models.Author.objects.filter(_word_starts_with('name', prefix)) + + books = models.Book.objects.filter(_word_starts_with('title', prefix)) + tags = models.Tag.objects.filter(_word_starts_with('name', prefix)) + if user and 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')) + + prefix_regexp = re.compile(_word_starts_with_regexp(prefix)) + return list(books) + list(tags) + [app for app in _apps if prefix_regexp.search(app.lower)] + list(book_stubs) + list(authors) + + +def _get_result_link(match, tag_list): + if isinstance(match, models.Tag): + return reverse('catalogue.views.tagged_object_list', + kwargs={'tags': '/'.join(tag.url_chunk for tag in tag_list + [match])} ) - auth.login(request, user) - response_data = {'success': True, 'errors': {}} + elif isinstance(match, App): + return match.view() else: - response_data = {'success': False, 'errors': registration_form.errors} - return HttpResponse(LazyEncoder(ensure_ascii=False).encode(response_data)) + return match.get_absolute_url() -@require_POST -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': {}} +def _get_result_type(match): + if isinstance(match, models.Book) or isinstance(match, pdcounter_models.BookStub): + type = 'book' else: - response_data = {'success': False, 'errors': form.errors} - return HttpResponse(LazyEncoder(ensure_ascii=False).encode(response_data)) + type = match.category + return type + + +def books_starting_with(prefix): + prefix = prefix.lower() + return models.Book.objects.filter(_word_starts_with('title', prefix)) + + +def find_best_matches(query, user=None): + """ Finds a Book, Tag, BookStub or Author best matching a query. + + Returns a with: + - zero elements when nothing is found, + - one element when a best result is found, + - more then one element on multiple exact matches + + Raises a ValueError on too short a query. + """ + + query = query.lower() + if len(query) < 2: + raise ValueError("query must have at least two characters") + result = tuple(_tags_starting_with(query, user)) + # remove pdcounter stuff + book_titles = set(match.pretty_title().lower() for match in result + if isinstance(match, models.Book)) + authors = set(match.name.lower() for match in result + if isinstance(match, models.Tag) and match.category=='author') + result = tuple(res for res in result if not ( + (isinstance(res, pdcounter_models.BookStub) and res.pretty_title().lower() in book_titles) + or (isinstance(res, pdcounter_models.Author) and res.name.lower() in authors) + )) + exact_matches = tuple(res for res in result if res.name.lower() == query) + if exact_matches: + return exact_matches + else: + return tuple(result)[:1] + + +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 = [] + + try: + result = find_best_matches(prefix, request.user) + except ValueError: + return render_to_response('catalogue/search_too_short.html', {'tags':tag_list, 'prefix':prefix}, + context_instance=RequestContext(request)) + + if len(result) == 1: + return HttpResponseRedirect(_get_result_link(result[0], tag_list)) + elif len(result) > 1: + return render_to_response('catalogue/search_multiple_hits.html', + {'tags':tag_list, 'prefix':prefix, 'results':((x, _get_result_link(x, tag_list), _get_result_type(x)) for x in result)}, + context_instance=RequestContext(request)) + else: + return render_to_response('catalogue/search_no_hits.html', {'tags':tag_list, 'prefix':prefix}, + context_instance=RequestContext(request)) + + +def tags_starting_with(request): + prefix = request.GET.get('q', '') + # Prefix must have at least 2 characters + if len(prefix) < 2: + return HttpResponse('') + tags_list = [] + result = "" + for tag in _tags_starting_with(prefix, request.user): + if not tag.name in tags_list: + result += "\n" + tag.name + tags_list.append(tag.name) + return HttpResponse(result) + +def json_tags_starting_with(request, callback=None): + # Callback for JSONP + prefix = request.GET.get('q', '') + callback = request.GET.get('callback', '') + # Prefix must have at least 2 characters + if len(prefix) < 2: + return HttpResponse('') + tags_list = [] + result = "" + for tag in _tags_starting_with(prefix, request.user): + if not tag.name in tags_list: + result += "\n" + tag.name + tags_list.append(tag.name) + dict_result = {"matches": tags_list} + return JSONResponse(dict_result, callback) + +# ==================== +# = 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): + if not request.user.is_authenticated(): + return HttpResponse(_('
To maintain your shelves you need to be logged in.
')) + 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(): - book.tags = ([models.Tag.objects.get(pk=id) for id in form.cleaned_data['set_ids']] + - list(book.tags.filter(~Q(category='set') | ~Q(user=request.user)))) + 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 = None + shelf.save() + + for shelf in [shelf for shelf in new_shelves if shelf not in old_shelves]: + shelf.book_count = None + 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.
') + return JSONResponse('{"msg":"'+_("Shelves were sucessfully saved.
")+'", "after":"close"}') 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)) -def fragment_sets(request, id): - fragment = get_object_or_404(models.Fragment, pk=id) - user_sets = models.Tag.objects.filter(category='set', user=request.user) - fragment_sets = fragment.tags.filter(category='set', user=request.user) +@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 not request.user.is_authenticated(): - return HttpResponse('Aby zarzÄ dzaÄ swoimi póÅkami, musisz siÄ zalogowaÄ.
') + if shelf in book.tags: + models.Tag.objects.remove_tag(book, shelf) - if request.method == 'POST': - form = forms.ObjectSetsForm(fragment, request.user, request.POST) - if form.is_valid(): - fragment.tags = ([models.Tag.objects.get(pk=id) for id in form.cleaned_data['set_ids']] + - list(fragment.tags.filter(~Q(category='set') | ~Q(user=request.user)))) - if request.is_ajax(): - return HttpResponse('PóÅki zostaÅy zapisane.
') - else: - return HttpResponseRedirect('/') + shelf.book_count = None + shelf.save() + + return HttpResponse(_('Book was successfully removed from the shelf')) else: - form = forms.ObjectSetsForm(fragment, request.user) - new_set_form = forms.NewSetForm() + return HttpResponse(_('This book is not on the shelf')) - return render_to_response('catalogue/fragment_sets.html', locals(), - context_instance=RequestContext(request)) + +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', 'epub', 'odt', 'txt', 'mp3', 'ogg', 'daisy'] + + # Create a ZIP archive + temp = tempfile.TemporaryFile() + archive = zipfile.ZipFile(temp, 'w') + + already = set() + 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 book.root_ancestor not in already and 'epub' in formats and book.root_ancestor.epub_file: + filename = book.root_ancestor.epub_file.path + archive.write(filename, str('%s.epub' % book.root_ancestor.slug)) + already.add(book.root_ancestor) + if 'odt' in formats and book.has_media("odt"): + for file in book.get_media("odt"): + filename = file.file.path + archive.write(filename, str('%s.odt' % slugify(file.name))) + 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.has_media("mp3"): + for file in book.get_media("mp3"): + filename = file.file.path + archive.write(filename, str('%s.mp3' % slugify(file.name))) + if 'ogg' in formats and book.has_media("ogg"): + for file in book.get_media("ogg"): + filename = file.file.path + archive.write(filename, str('%s.ogg' % slugify(file.name))) + if 'daisy' in formats and book.has_media("daisy"): + for file in book.get_media("daisy"): + filename = file.file.path + archive.write(filename, str('%s.daisy' % slugify(file.name))) + archive.close() + + response = HttpResponse(content_type='application/zip', mimetype='application/x-zip-compressed') + response['Content-Disposition'] = 'attachment; filename=%s.zip' % slughifi(shelf.name) + 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, 'epub': False, 'odt': False, 'txt': False, 'mp3': False, 'ogg': False, 'daisy': False} + + for book in collect_books(models.Book.tagged.with_all(shelf)): + if book.pdf_file: + formats['pdf'] = True + if book.root_ancestor.epub_file: + formats['epub'] = 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 + if book.daisy_file: + formats['daisy'] = 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) - return HttpResponse(u'PóÅka %s zostaÅa utworzona
' % new_set) - - return render_to_response('catalogue/book_sets.html', locals(), - context_instance=RequestContext(request)) + + if request.is_ajax(): + return JSONResponse('{"id":"%d", "name":"%s", "msg":"Shelf %s was successfully created
"}' % (new_set.id, new_set.name, 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() - return HttpResponse(u'PóÅka %s zostaÅa usuniÄta
' % user_set.name) - - + + if request.is_ajax(): + return HttpResponse(_('Shelf %s was successfully removed
') % 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(urlquote_plus(request.GET.get('next', '/'), safe='/?=')) + + + +# ========= +# = Admin = +# ========= @login_required -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)) +@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: %(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) + + + +def clock(request): + """ Provides server time for jquery.countdown, + in a format suitable for Date.parse() + """ + return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S')) + + +@cache.never_cache +def xmls(request): + """" + Create a zip archive with all XML files. + """ + temp = tempfile.TemporaryFile() + archive = zipfile.ZipFile(temp, 'w') + + for book in models.Book.objects.all(): + archive.write(book.xml_file.path, str('%s.xml' % book.slug)) + archive.close() + + response = HttpResponse(content_type='application/zip', mimetype='application/x-zip-compressed') + response['Content-Disposition'] = 'attachment; filename=xmls.zip' + response['Content-Length'] = temp.tell() + + temp.seek(0) + response.write(temp.read()) + return response + + +@cache.never_cache +def epubs(request): + """" + Create a tar archive with all EPUB files, segregated to directories. + """ + + temp = tempfile.TemporaryFile() + archive = tarfile.TarFile(fileobj=temp, mode='w') + + for book in models.Book.objects.exclude(epub_file=''): + archive.add(book.epub_file.path, (u'%s/%s.epub' % (book.get_extra_info_value()['author'], book.slug)).encode('utf-8')) + archive.close() + + response = HttpResponse(content_type='application/tar', mimetype='application/x-tar') + response['Content-Disposition'] = 'attachment; filename=epubs.tar' + response['Content-Length'] = temp.tell() + temp.seek(0) + response.write(temp.read()) + return response