src/documents/views.py

   1 # This file is part of FNP-Redakcja, licensed under GNU Affero GPLv3 or later.
   2 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   3 #
   4 from collections import defaultdict
   5 from copy import deepcopy
   6 from datetime import datetime, date, timedelta
   7 from itertools import zip_longest
   8 import logging
   9 import os
  10 from urllib.parse import quote_plus, unquote, urlsplit, urlunsplit
  11
  12 from django.conf import settings
  13 from django.contrib import auth
  14 from django.contrib.auth.models import User
  15 from django.contrib.auth.decorators import login_required, permission_required
  16 from django.urls import reverse
  17 from django.db.models import Count, Q
  18 from django.db import transaction
  19 from django import http
  20 from django.http import Http404, HttpResponse, HttpResponseForbidden
  21 from django.http.response import HttpResponseRedirect
  22 from django.shortcuts import get_object_or_404, render
  23 from django.utils.encoding import iri_to_uri
  24 from django.utils.translation import gettext_lazy as _
  25 from django.views.decorators.http import require_POST
  26 from django_cas_ng.decorators import user_passes_test
  27 import requests
  28
  29 from librarian import epubcheck
  30 from librarian.html import raw_printable_text
  31
  32 from apiclient import api_call, NotAuthorizedError
  33 from . import forms
  34 from . import helpers
  35 from .helpers import active_tab
  36 from .models import (Book, Chunk, Image, BookPublishRecord,
  37         ChunkPublishRecord, ImagePublishRecord, Project)
  38 from fileupload.views import UploadView
  39
  40 #
  41 # Quick hack around caching problems, TODO: use ETags
  42 #
  43 from django.views.decorators.cache import never_cache
  44
  45 logger = logging.getLogger("fnp.documents")
  46
  47
  48 @active_tab('all')
  49 @never_cache
  50 def document_list(request):
  51     return render(request, 'documents/document_list.html')
  52
  53
  54 @active_tab('images')
  55 @never_cache
  56 def image_list(request, user=None):
  57     return render(request, 'documents/image_list.html')
  58
  59
  60 @never_cache
  61 def user(request, username):
  62     user = get_object_or_404(User, username=username)
  63     return render(request, 'documents/user_page.html', {"viewed_user": user})
  64
  65
  66 @login_required
  67 @active_tab('my')
  68 @never_cache
  69 def my(request):
  70     last_books = sorted(request.session.get("wiki_last_books", {}).items(),
  71         key=lambda x: x[1]['time'], reverse=True)
  72     for k, v in last_books:
  73         v['time'] = datetime.fromtimestamp(v['time'])
  74     try:
  75         resp = api_call(request.user, 'username/')
  76     except NotAuthorizedError:
  77         wllogin = None
  78     else:
  79         wllogin = resp['username']
  80
  81     return render(request, 'documents/my_page.html', {
  82         'last_books': last_books,
  83         "logout_to": '/',
  84         "wllogin": wllogin,
  85         })
  86
  87
  88 @active_tab('users')
  89 def users(request):
  90     return render(request, 'documents/user_list.html', {
  91         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  92             '-count', 'last_name', 'first_name'),
  93     })
  94
  95
  96 @active_tab('activity')
  97 def activity(request, isodate=None):
  98     today = date.today()
  99     try:
 100         day = helpers.parse_isodate(isodate)
 101     except ValueError:
 102         day = today
 103
 104     if day > today:
 105         raise Http404
 106     if day != today:
 107         next_day = day + timedelta(1)
 108     prev_day = day - timedelta(1)
 109
 110     return render(request, 'documents/activity.html', locals())
 111
 112
 113 @never_cache
 114 def logout_then_redirect(request):
 115     auth.logout(request)
 116     return http.HttpResponseRedirect(quote_plus(request.GET.get('next', '/'), safe='/?='))
 117
 118
 119 @permission_required('documents.add_book')
 120 @active_tab('create')
 121 def create_missing(request, slug=None):
 122     if slug is None:
 123         slug = ''
 124     slug = slug.replace(' ', '-')
 125
 126     if request.method == "POST":
 127         form = forms.DocumentCreateForm(request.POST, request.FILES)
 128         if form.is_valid():
 129
 130             if request.user.is_authenticated:
 131                 creator = request.user
 132             else:
 133                 creator = None
 134             book = Book.create(
 135                 text=form.cleaned_data['text'],
 136                 creator=creator,
 137                 slug=form.cleaned_data['slug'],
 138                 title=form.cleaned_data['title'],
 139                 gallery=form.cleaned_data['gallery'],
 140             )
 141
 142             return http.HttpResponseRedirect(reverse("documents_book", args=[book.slug]))
 143     else:
 144         form = forms.DocumentCreateForm(initial={
 145                 "slug": slug,
 146                 "title": slug.replace('-', ' ').title(),
 147                 "gallery": slug,
 148         })
 149
 150     return render(request, "documents/document_create_missing.html", {
 151         "slug": slug,
 152         "form": form,
 153
 154         "logout_to": '/',
 155     })
 156
 157
 158 @permission_required('documents.add_book')
 159 @active_tab('upload')
 160 def upload(request):
 161     if request.method == "POST":
 162         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 163         if form.is_valid():
 164             from slugify import slugify
 165
 166             if request.user.is_authenticated:
 167                 creator = request.user
 168             else:
 169                 creator = None
 170
 171             zip = form.cleaned_data['zip']
 172             skipped_list = []
 173             ok_list = []
 174             error_list = []
 175             slugs = {}
 176             existing = [book.slug for book in Book.objects.all()]
 177             for filename in zip.namelist():
 178                 if filename[-1] == '/':
 179                     continue
 180                 title = os.path.basename(filename)[:-4]
 181                 slug = slugify(title)
 182                 if not (slug and filename.endswith('.xml')):
 183                     skipped_list.append(filename)
 184                 elif slug in slugs:
 185                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 186                 elif slug in existing:
 187                     error_list.append((filename, slug, _('Slug already used in repository.')))
 188                 else:
 189                     try:
 190                         zip.read(filename).decode('utf-8') # test read
 191                         ok_list.append((filename, slug, title))
 192                     except UnicodeDecodeError:
 193                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 194                     slugs[slug] = filename
 195
 196             if not error_list:
 197                 for filename, slug, title in ok_list:
 198                     book = Book.create(
 199                         text=zip.read(filename).decode('utf-8'),
 200                         creator=creator,
 201                         slug=slug,
 202                         title=title,
 203                     )
 204
 205             return render(request, "documents/document_upload.html", {
 206                 "form": form,
 207                 "ok_list": ok_list,
 208                 "skipped_list": skipped_list,
 209                 "error_list": error_list,
 210
 211                 "logout_to": '/',
 212             })
 213     else:
 214         form = forms.DocumentsUploadForm()
 215
 216     return render(request, "documents/document_upload.html", {
 217         "form": form,
 218
 219         "logout_to": '/',
 220     })
 221
 222
 223 def serve_xml(request, book, slug):
 224     if not book.accessible(request):
 225         return HttpResponseForbidden("Not authorized.")
 226     xml = book.materialize(publishable=True)
 227     response = http.HttpResponse(xml, content_type='application/xml')
 228     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 229     return response
 230
 231
 232 @never_cache
 233 def book_xml(request, slug):
 234     book = get_object_or_404(Book, slug=slug)
 235     return serve_xml(request, book, slug)
 236
 237
 238 @never_cache
 239 def book_xml_dc(request, slug):
 240     book = get_object_or_404(Book, catalogue_book_id=slug)
 241     return serve_xml(request, book, slug)
 242
 243
 244 @never_cache
 245 def book_txt(request, slug):
 246     book = get_object_or_404(Book, slug=slug)
 247     if not book.accessible(request):
 248         return HttpResponseForbidden("Not authorized.")
 249
 250     doc = book.wldocument()
 251     text = doc.as_text().get_bytes()
 252     response = http.HttpResponse(text, content_type='text/plain')
 253     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 254     return response
 255
 256
 257 @never_cache
 258 def book_html(request, slug):
 259     book = get_object_or_404(Book, slug=slug)
 260     if not book.accessible(request):
 261         return HttpResponseForbidden("Not authorized.")
 262
 263     doc = book.wldocument(parse_dublincore=False)
 264     html = doc.as_html(options={'gallery': "'%s'" % book.gallery_url()})
 265
 266     html = html.get_bytes().decode('utf-8') if html is not None else ''
 267     # response = http.HttpResponse(html, content_type='text/html')
 268     # return response
 269     # book_themes = {}
 270     # for fragment in book.fragments.all().iterator():
 271     #     for theme in fragment.tags.filter(category='theme').iterator():
 272     #         book_themes.setdefault(theme, []).append(fragment)
 273
 274     # book_themes = book_themes.items()
 275     # book_themes.sort(key=lambda s: s[0].sort_key)
 276     return render(request, 'documents/book_text.html', locals())
 277
 278
 279 @login_required
 280 @never_cache
 281 def book_pdf(request, slug, mobile=False):
 282     book = get_object_or_404(Book, slug=slug)
 283     if not book.accessible(request):
 284         return HttpResponseForbidden("Not authorized.")
 285
 286     # TODO: move to celery
 287     doc = book.wldocument()
 288     # TODO: error handling
 289     customizations = ['26pt', 'nothemes', 'nomargins', 'notoc'] if mobile else None
 290     pdf_file = doc.as_pdf(cover=True, base_url=request.build_absolute_uri(book.gallery_path()), customizations=customizations)
 291     from .ebook_utils import serve_file
 292     return serve_file(pdf_file.get_filename(),
 293                 book.slug + '.pdf', 'application/pdf')
 294
 295
 296 @login_required
 297 @never_cache
 298 def book_epub(request, slug):
 299     book = get_object_or_404(Book, slug=slug)
 300     if not book.accessible(request):
 301         return HttpResponseForbidden("Not authorized.")
 302
 303     # TODO: move to celery
 304     doc = book.wldocument(librarian2=True)
 305     # TODO: error handling
 306
 307     from librarian.builders import EpubBuilder
 308     epub = EpubBuilder(
 309         base_url='file://' + book.gallery_path() + '/',
 310         debug=True
 311     ).build(doc).get_bytes()
 312     response = HttpResponse(content_type='application/epub+zip')
 313     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 314     response.write(epub)
 315     return response
 316
 317
 318 @login_required
 319 @never_cache
 320 def book_epubcheck(request, slug):
 321     book = get_object_or_404(Book, slug=slug)
 322     if not book.accessible(request):
 323         return HttpResponseForbidden("Not authorized.")
 324
 325     # TODO: move to celery
 326     doc = book.wldocument(librarian2=True)
 327     # TODO: error handling
 328
 329     from librarian.builders import EpubBuilder
 330     epub = EpubBuilder(
 331         base_url='file://' + book.gallery_path() + '/',
 332         debug=True
 333     ).build(doc)
 334     fname = epub.get_filename()
 335
 336     messages = epubcheck.epubcheck(fname)
 337     for message in messages:
 338         for location in message.get('locations', []):
 339             if 'wl_chunk' in location:
 340                 location['wl_chunk'] = book[location['wl_chunk']]
 341     return render(request, 'documents/book_epubcheck.html', {
 342         'messages': messages,
 343         'book': book,
 344     })
 345
 346
 347 @login_required
 348 @never_cache
 349 def book_mobi(request, slug):
 350     book = get_object_or_404(Book, slug=slug)
 351     if not book.accessible(request):
 352         return HttpResponseForbidden("Not authorized.")
 353
 354     # TODO: move to celery
 355     doc = book.wldocument(librarian2=True)
 356     # TODO: error handling
 357     from librarian.builders import MobiBuilder
 358     mobi = MobiBuilder(
 359         base_url='file://' + book.gallery_path() + '/'
 360     ).build(doc).get_bytes()
 361     response = HttpResponse(content_type='application/x-mobipocket-ebook')
 362     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.mobi'
 363     response.write(mobi)
 364     return response
 365
 366
 367 @never_cache
 368 def revision(request, slug, chunk=None):
 369     try:
 370         doc = Chunk.get(slug, chunk)
 371     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 372         raise Http404
 373     if not doc.book.accessible(request):
 374         return HttpResponseForbidden("Not authorized.")
 375     return http.HttpResponse(str(doc.revision()))
 376
 377
 378 def book(request, slug):
 379     book = get_object_or_404(Book, slug=slug)
 380     if not book.accessible(request):
 381         return HttpResponseForbidden("Not authorized.")
 382
 383     if request.user.has_perm('documents.change_book'):
 384         if request.method == "POST":
 385             form = forms.BookForm(request.POST, instance=book)
 386             if form.is_valid():
 387                 form.save()
 388                 return http.HttpResponseRedirect(book.get_absolute_url())
 389         else:
 390             form = forms.BookForm(instance=book)
 391         publish_options_form = forms.PublishOptionsForm()
 392         editable = True
 393     else:
 394         form = forms.ReadonlyBookForm(instance=book)
 395         publish_options_form = forms.PublishOptionsForm()
 396         editable = False
 397
 398     publish_error = book.publishable_error()
 399     publishable = publish_error is None
 400
 401     stats = None
 402     try:
 403         doc = book.wldocument(librarian2=True)
 404     except:
 405         doc = None
 406     else:
 407         try:
 408             stats = doc.get_statistics()
 409         except:
 410             pass
 411
 412     if book.catalogue_book_id:
 413         audio_items = requests.get(f'https://audio.wolnelektury.pl/archive/book/{book.catalogue_book_id}.json').json()['items']
 414         has_audio = bool(audio_items)
 415         can_sell_audio = has_audio and all(x['project']['can_sell'] for x in audio_items)
 416     else:
 417         has_audio = None
 418         can_sell_audio = None
 419
 420     return render(request, "documents/book_detail.html", {
 421         "book": book,
 422         "doc": doc,
 423         "stats": stats,
 424         "publishable": publishable,
 425         "publishable_error": publish_error,
 426         "form": form,
 427         "publish_options_form": publish_options_form,
 428         "editable": editable,
 429         "has_audio": has_audio,
 430         "can_sell_audio": can_sell_audio,
 431     })
 432
 433
 434 def image(request, slug):
 435     image = get_object_or_404(Image, slug=slug)
 436     if not image.accessible(request):
 437         return HttpResponseForbidden("Not authorized.")
 438
 439     if request.user.has_perm('documents.change_image'):
 440         if request.method == "POST":
 441             form = forms.ImageForm(request.POST, instance=image)
 442             if form.is_valid():
 443                 form.save()
 444                 return http.HttpResponseRedirect(image.get_absolute_url())
 445         else:
 446             form = forms.ImageForm(instance=image)
 447         editable = True
 448     else:
 449         form = forms.ReadonlyImageForm(instance=image)
 450         editable = False
 451
 452     publish_error = image.publishable_error()
 453     publishable = publish_error is None
 454
 455     return render(request, "documents/image_detail.html", {
 456         "object": image,
 457         "publishable": publishable,
 458         "publishable_error": publish_error,
 459         "form": form,
 460         "editable": editable,
 461     })
 462
 463
 464 @permission_required('documents.add_chunk')
 465 def chunk_add(request, slug, chunk):
 466     try:
 467         doc = Chunk.get(slug, chunk)
 468     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 469         raise Http404
 470     if not doc.book.accessible(request):
 471         return HttpResponseForbidden("Not authorized.")
 472
 473     if request.method == "POST":
 474         form = forms.ChunkAddForm(request.POST, instance=doc)
 475         if form.is_valid():
 476             if request.user.is_authenticated:
 477                 creator = request.user
 478             else:
 479                 creator = None
 480             doc.split(creator=creator,
 481                 slug=form.cleaned_data['slug'],
 482                 title=form.cleaned_data['title'],
 483                 gallery_start=form.cleaned_data['gallery_start'],
 484                 user=form.cleaned_data['user'],
 485                 stage=form.cleaned_data['stage']
 486             )
 487
 488             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 489     else:
 490         form = forms.ChunkAddForm(initial={
 491                 "slug": str(doc.number + 1),
 492                 "title": "cz. %d" % (doc.number + 1, ),
 493         })
 494
 495     return render(request, "documents/chunk_add.html", {
 496         "chunk": doc,
 497         "form": form,
 498     })
 499
 500
 501 @login_required
 502 def chunk_edit(request, slug, chunk):
 503     try:
 504         doc = Chunk.get(slug, chunk)
 505     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 506         raise Http404
 507     if not doc.book.accessible(request):
 508         return HttpResponseForbidden("Not authorized.")
 509
 510     if request.method == "POST":
 511         form = forms.ChunkForm(request.POST, instance=doc)
 512         if form.is_valid():
 513             form.save()
 514             go_next = request.GET.get('next', None)
 515             if go_next:
 516                 go_next = quote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 517             else:
 518                 go_next = doc.book.get_absolute_url()
 519             return http.HttpResponseRedirect(go_next)
 520     else:
 521         form = forms.ChunkForm(instance=doc)
 522
 523     referer = request.META.get('HTTP_REFERER')
 524     if referer:
 525         parts = urlsplit(referer)
 526         parts = ['', ''] + list(parts[2:])
 527         go_next = quote_plus(urlunsplit(parts))
 528     else:
 529         go_next = ''
 530
 531     return render(request, "documents/chunk_edit.html", {
 532         "chunk": doc,
 533         "form": form,
 534         "go_next": go_next,
 535     })
 536
 537
 538 @transaction.atomic
 539 @login_required
 540 @require_POST
 541 def chunk_mass_edit(request):
 542     ids = [int(i) for i in request.POST.get('ids').split(',') if i.strip()]
 543     chunks = list(Chunk.objects.filter(id__in=ids))
 544
 545     stage = request.POST.get('stage')
 546     if stage:
 547         try:
 548             stage = Chunk.tag_model.objects.get(slug=stage)
 549         except Chunk.DoesNotExist as e:
 550             stage = None
 551
 552         for c in chunks: c.stage = stage
 553
 554     username = request.POST.get('user')
 555     logger.info("username: %s" % username)
 556     logger.info(request.POST)
 557     if username:
 558         try:
 559             user = User.objects.get(username=username)
 560         except User.DoesNotExist as e:
 561             user = None
 562
 563         for c in chunks: c.user = user
 564
 565     project_id = request.POST.get('project')
 566     if project_id:
 567         try:
 568             project = Project.objects.get(pk=int(project_id))
 569         except (Project.DoesNotExist, ValueError) as e:
 570             project = None
 571         for c in chunks:
 572             book = c.book
 573             book.project = project
 574             book.save()
 575
 576     for c in chunks: c.save()
 577
 578     return HttpResponse("", content_type="text/plain")
 579
 580
 581 @transaction.atomic
 582 @login_required
 583 @require_POST
 584 def image_mass_edit(request):
 585     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 586     images = map(lambda i: Image.objects.get(id=i), ids)
 587
 588     stage = request.POST.get('stage')
 589     if stage:
 590         try:
 591             stage = Image.tag_model.objects.get(slug=stage)
 592         except Image.DoesNotExist as e:
 593             stage = None
 594
 595         for c in images: c.stage = stage
 596
 597     username = request.POST.get('user')
 598     logger.info("username: %s" % username)
 599     logger.info(request.POST)
 600     if username:
 601         try:
 602             user = User.objects.get(username=username)
 603         except User.DoesNotExist as e:
 604             user = None
 605
 606         for c in images: c.user = user
 607
 608     project_id = request.POST.get('project')
 609     if project_id:
 610         try:
 611             project = Project.objects.get(pk=int(project_id))
 612         except (Project.DoesNotExist, ValueError) as e:
 613             project = None
 614         for c in images:
 615             c.project = project
 616
 617     for c in images: c.save()
 618
 619     return HttpResponse("", content_type="text/plain")
 620
 621
 622 @permission_required('documents.change_book')
 623 def book_append(request, slug):
 624     book = get_object_or_404(Book, slug=slug)
 625     if not book.accessible(request):
 626         return HttpResponseForbidden("Not authorized.")
 627
 628     if request.method == "POST":
 629         form = forms.BookAppendForm(book, request.POST)
 630         if form.is_valid():
 631             append_to = form.cleaned_data['append_to']
 632             append_to.append(book)
 633             return http.HttpResponseRedirect(append_to.get_absolute_url())
 634     else:
 635         form = forms.BookAppendForm(book)
 636     return render(request, "documents/book_append_to.html", {
 637         "book": book,
 638         "form": form,
 639
 640         "logout_to": '/',
 641     })
 642
 643
 644 @require_POST
 645 @login_required
 646 def publish(request, slug):
 647     form = forms.PublishOptionsForm(request.POST)
 648     if form.is_valid():
 649         days = form.cleaned_data['days']
 650         beta = form.cleaned_data['beta']
 651         hidden = form.cleaned_data['hidden']
 652     else:
 653         days = 0
 654         beta = False
 655         hidden = False
 656     book = get_object_or_404(Book, slug=slug)
 657     if not book.accessible(request):
 658         return HttpResponseForbidden("Not authorized.")
 659
 660     try:
 661         protocol = 'https://' if request.is_secure() else 'http://'
 662         book.publish(request.user, host=protocol + request.get_host(), days=days, beta=beta, hidden=hidden)
 663     except NotAuthorizedError:
 664         return http.HttpResponseRedirect(reverse('apiclient_oauth' if not beta else 'apiclient_beta_oauth'))
 665     except BaseException as e:
 666         return http.HttpResponse(repr(e))
 667     else:
 668         return http.HttpResponseRedirect(book.get_absolute_url())
 669
 670
 671 @require_POST
 672 @login_required
 673 def publish_image(request, slug):
 674     image = get_object_or_404(Image, slug=slug)
 675     if not image.accessible(request):
 676         return HttpResponseForbidden("Not authorized.")
 677
 678     try:
 679         image.publish(request.user)
 680     except NotAuthorizedError:
 681         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 682     except BaseException as e:
 683         return http.HttpResponse(e)
 684     else:
 685         return http.HttpResponseRedirect(image.get_absolute_url())
 686
 687
 688 class GalleryView(UploadView):
 689     def get_object(self, request, slug):
 690         book = get_object_or_404(Book, slug=slug)
 691         if not book.gallery:
 692             raise Http404
 693         return book
 694
 695     def breadcrumbs(self):
 696         return [
 697             (_('books'), reverse('documents_document_list')),
 698             (self.object.title, self.object.get_absolute_url()),
 699             (_('scan gallery'),),
 700         ]
 701
 702     def get_directory(self):
 703         return "%s%s/" % (settings.IMAGE_DIR, self.object.gallery)
 704
 705
 706 def active_users_list(request, csv=False):
 707     year = int(request.GET.get('y', date.today().year))
 708     by_user = defaultdict(lambda: 0)
 709     by_email = defaultdict(lambda: 0)
 710     names_by_email = defaultdict(set)
 711     for change_model in (Chunk.change_model, Image.change_model):
 712         for c in change_model.objects.filter(
 713                 created_at__year=year).order_by(
 714                 'author', 'author_email', 'author_name').values(
 715                 'author', 'author_name', 'author_email').annotate(
 716                 c=Count('author'), ce=Count('author_email')).distinct():
 717             if c['author']:
 718                 by_user[c['author']] += c['c']
 719             else:
 720                 by_email[c['author_email']] += c['ce']
 721                 if (c['author_name'] or '').strip():
 722                     names_by_email[c['author_email']].add(c['author_name'])
 723     for user in User.objects.filter(pk__in=by_user):
 724         by_email[user.email] += by_user[user.pk]
 725         names_by_email[user.email].add("%s %s" % (user.first_name, user.last_name))
 726
 727     active_users = []
 728     for email, count in by_email.items():
 729         active_users.append((email, names_by_email[email], count))
 730     active_users.sort(key=lambda x: -x[2])
 731     if csv:
 732         return http.HttpResponse(
 733             '\n'.join((
 734                 ','.join(
 735                     (str(x[2]), x[0], ','.join(x[1]))
 736                 )
 737                 for x in active_users
 738             )),
 739             content_type='text/csv',
 740             headers={
 741                 'Content-Disposition': f'attachment; filename=redakcja-{year}.csv',
 742             }
 743         )
 744     else:
 745         return render(request, 'documents/active_users_list.html', {
 746             'users': active_users,
 747             'year': year,
 748         })
 749
 750
 751 @user_passes_test(lambda u: u.is_superuser)
 752 def mark_final(request):
 753     if request.method == 'POST':
 754         form = forms.MarkFinalForm(data=request.POST)
 755         if form.is_valid():
 756             form.save()
 757             return HttpResponseRedirect(reverse('mark_final_completed'))
 758     else:
 759         form = forms.MarkFinalForm()
 760     return render(request, 'documents/mark_final.html', {'form': form})
 761
 762
 763 def mark_final_completed(request):
 764     return render(request, 'documents/mark_final_completed.html')
 765
 766
 767 def synchro(request, slug):
 768     book = get_object_or_404(Book, slug=slug)
 769     if not book.accessible(request):
 770         return HttpResponseForbidden("Not authorized.")
 771
 772     document = book.wldocument(librarian2=True)
 773     slug = document.meta.url.slug
 774     print(f'https://audio.wolnelektury.pl/archive/book/{slug}.json')
 775     error = None
 776     try:
 777         items = requests.get(f'https://audio.wolnelektury.pl/archive/book/{slug}.json').json()['items']
 778     except:
 779         error = 'Błąd połączenia z repozytorium audio.'
 780         items = []
 781     else:
 782         mp3 = [
 783             item['part'] for item in items
 784         ]
 785
 786     split_on = (
 787         'naglowek_rozdzial',
 788         'naglowek_scena',
 789         )
 790
 791     if split_on:
 792         documents = []
 793         headers = [('Początek', 0, 0)]
 794         present = True
 795         n = 0
 796         while present:
 797             present = False
 798             n += 1
 799             newdoc = deepcopy(document)
 800             newdoc.tree.getroot().document = newdoc
 801
 802             master = newdoc.tree.getroot()[-1]
 803             i = 0
 804             for item in list(master):
 805                 #chunkno, sourceline = 0, self.sourceline
 806                 #if builder.splits:
 807                 #    chunkno, sourceline = len(builder.splits), sourceline - builder.splits[-1]
 808
 809                 if 'forcesplit' in item.attrib or (item.tag in split_on and 'nosplit' not in item.attrib):
 810                     # TODO: clear
 811                     i += 1
 812                     if n > 1 and i == n:
 813                         headers.append((
 814                             raw_printable_text(item),
 815                             0,
 816                             item.sourceline,
 817                         ))
 818                 if i != n and not (n == 1 and not i):
 819                     master.remove(item)
 820                 else:
 821                     present = True
 822                 if present:
 823                     documents.append(newdoc)
 824     else:
 825         documents = [document]
 826         headers = [(
 827             document.meta.title, 0 ,0
 828         )]
 829
 830     length_ok = len(headers) == len(mp3)
 831     table = zip_longest(headers, mp3)
 832
 833
 834     return render(request, 'documents/synchro.html', {
 835         'book': book,
 836         'documents': documents,
 837         'headers': headers,
 838         'mp3': mp3,
 839         'length_ok': length_ok,
 840         'table': table,
 841         'error': error,
 842     })