src/catalogue/views.py

   1 # -*- coding: utf-8 -*-
   2 from collections import defaultdict
   3 from datetime import datetime, date, timedelta
   4 import logging
   5 import os
   6 from urllib.parse import unquote, urlsplit, urlunsplit
   7
   8 from django.conf import settings
   9 from django.contrib import auth
  10 from django.contrib.auth.models import User
  11 from django.contrib.auth.decorators import login_required, permission_required
  12 from django.core.urlresolvers import reverse
  13 from django.db.models import Count, Q
  14 from django.db import transaction
  15 from django import http
  16 from django.http import Http404, HttpResponse, HttpResponseForbidden
  17 from django.http.response import HttpResponseRedirect
  18 from django.shortcuts import get_object_or_404, render
  19 from django.utils.encoding import iri_to_uri
  20 from django.utils.http import urlquote_plus
  21 from django.utils.translation import ugettext_lazy as _
  22 from django.views.decorators.http import require_POST
  23 from django_cas_ng.decorators import user_passes_test
  24
  25 from apiclient import NotAuthorizedError
  26 from catalogue import forms
  27 from catalogue import helpers
  28 from catalogue.helpers import active_tab
  29 from catalogue.models import (Book, Chunk, Image, BookPublishRecord,
  30         ChunkPublishRecord, ImagePublishRecord, Project)
  31 from fileupload.views import UploadView
  32
  33 #
  34 # Quick hack around caching problems, TODO: use ETags
  35 #
  36 from django.views.decorators.cache import never_cache
  37
  38 logger = logging.getLogger("fnp.catalogue")
  39
  40
  41 @active_tab('all')
  42 @never_cache
  43 def document_list(request):
  44     return render(request, 'catalogue/document_list.html')
  45
  46
  47 @active_tab('images')
  48 @never_cache
  49 def image_list(request, user=None):
  50     return render(request, 'catalogue/image_list.html')
  51
  52
  53 @never_cache
  54 def user(request, username):
  55     user = get_object_or_404(User, username=username)
  56     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
  57
  58
  59 @login_required
  60 @active_tab('my')
  61 @never_cache
  62 def my(request):
  63     last_books = sorted(request.session.get("wiki_last_books", {}).items(),
  64         key=lambda x: x[1]['time'], reverse=True)
  65     for k, v in last_books:
  66         v['time'] = datetime.fromtimestamp(v['time'])
  67     return render(request, 'catalogue/my_page.html', {
  68         'last_books': last_books,
  69         "logout_to": '/',
  70         })
  71
  72
  73 @active_tab('users')
  74 def users(request):
  75     return render(request, 'catalogue/user_list.html', {
  76         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  77             '-count', 'last_name', 'first_name'),
  78     })
  79
  80
  81 @active_tab('activity')
  82 def activity(request, isodate=None):
  83     today = date.today()
  84     try:
  85         day = helpers.parse_isodate(isodate)
  86     except ValueError:
  87         day = today
  88
  89     if day > today:
  90         raise Http404
  91     if day != today:
  92         next_day = day + timedelta(1)
  93     prev_day = day - timedelta(1)
  94
  95     return render(request, 'catalogue/activity.html', locals())
  96
  97
  98 @never_cache
  99 def logout_then_redirect(request):
 100     auth.logout(request)
 101     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 102
 103
 104 @permission_required('catalogue.add_book')
 105 @active_tab('create')
 106 def create_missing(request, slug=None):
 107     if slug is None:
 108         slug = ''
 109     slug = slug.replace(' ', '-')
 110
 111     if request.method == "POST":
 112         form = forms.DocumentCreateForm(request.POST, request.FILES)
 113         if form.is_valid():
 114
 115             if request.user.is_authenticated():
 116                 creator = request.user
 117             else:
 118                 creator = None
 119             book = Book.create(
 120                 text=form.cleaned_data['text'],
 121                 creator=creator,
 122                 slug=form.cleaned_data['slug'],
 123                 title=form.cleaned_data['title'],
 124                 gallery=form.cleaned_data['gallery'],
 125             )
 126
 127             return http.HttpResponseRedirect(reverse("catalogue_book", args=[book.slug]))
 128     else:
 129         form = forms.DocumentCreateForm(initial={
 130                 "slug": slug,
 131                 "title": slug.replace('-', ' ').title(),
 132                 "gallery": slug,
 133         })
 134
 135     return render(request, "catalogue/document_create_missing.html", {
 136         "slug": slug,
 137         "form": form,
 138
 139         "logout_to": '/',
 140     })
 141
 142
 143 @permission_required('catalogue.add_book')
 144 @active_tab('upload')
 145 def upload(request):
 146     if request.method == "POST":
 147         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 148         if form.is_valid():
 149             from slugify import slugify
 150
 151             if request.user.is_authenticated():
 152                 creator = request.user
 153             else:
 154                 creator = None
 155
 156             zip = form.cleaned_data['zip']
 157             skipped_list = []
 158             ok_list = []
 159             error_list = []
 160             slugs = {}
 161             existing = [book.slug for book in Book.objects.all()]
 162             for filename in zip.namelist():
 163                 if filename[-1] == '/':
 164                     continue
 165                 title = os.path.basename(filename)[:-4]
 166                 slug = slugify(title)
 167                 if not (slug and filename.endswith('.xml')):
 168                     skipped_list.append(filename)
 169                 elif slug in slugs:
 170                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 171                 elif slug in existing:
 172                     error_list.append((filename, slug, _('Slug already used in repository.')))
 173                 else:
 174                     try:
 175                         zip.read(filename).decode('utf-8') # test read
 176                         ok_list.append((filename, slug, title))
 177                     except UnicodeDecodeError:
 178                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 179                     slugs[slug] = filename
 180
 181             if not error_list:
 182                 for filename, slug, title in ok_list:
 183                     book = Book.create(
 184                         text=zip.read(filename).decode('utf-8'),
 185                         creator=creator,
 186                         slug=slug,
 187                         title=title,
 188                     )
 189
 190             return render(request, "catalogue/document_upload.html", {
 191                 "form": form,
 192                 "ok_list": ok_list,
 193                 "skipped_list": skipped_list,
 194                 "error_list": error_list,
 195
 196                 "logout_to": '/',
 197             })
 198     else:
 199         form = forms.DocumentsUploadForm()
 200
 201     return render(request, "catalogue/document_upload.html", {
 202         "form": form,
 203
 204         "logout_to": '/',
 205     })
 206
 207
 208 def serve_xml(request, book, slug):
 209     if not book.accessible(request):
 210         return HttpResponseForbidden("Not authorized.")
 211     xml = book.materialize(publishable=True)
 212     response = http.HttpResponse(xml, content_type='application/xml')
 213     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 214     return response
 215
 216
 217 @never_cache
 218 def book_xml(request, slug):
 219     book = get_object_or_404(Book, slug=slug)
 220     return serve_xml(request, book, slug)
 221
 222
 223 @never_cache
 224 def book_xml_dc(request, slug):
 225     book = get_object_or_404(Book, dc_slug=slug)
 226     return serve_xml(request, book, slug)
 227
 228
 229 @never_cache
 230 def book_txt(request, slug):
 231     book = get_object_or_404(Book, slug=slug)
 232     if not book.accessible(request):
 233         return HttpResponseForbidden("Not authorized.")
 234
 235     doc = book.wldocument()
 236     text = doc.as_text().get_bytes()
 237     response = http.HttpResponse(text, content_type='text/plain')
 238     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 239     return response
 240
 241
 242 @never_cache
 243 def book_html(request, slug):
 244     book = get_object_or_404(Book, slug=slug)
 245     if not book.accessible(request):
 246         return HttpResponseForbidden("Not authorized.")
 247
 248     doc = book.wldocument(parse_dublincore=False)
 249     html = doc.as_html(options={'gallery': "'%s'" % book.gallery_url()})
 250
 251     html = html.get_bytes() if html is not None else ''
 252     # response = http.HttpResponse(html, content_type='text/html')
 253     # return response
 254     # book_themes = {}
 255     # for fragment in book.fragments.all().iterator():
 256     #     for theme in fragment.tags.filter(category='theme').iterator():
 257     #         book_themes.setdefault(theme, []).append(fragment)
 258
 259     # book_themes = book_themes.items()
 260     # book_themes.sort(key=lambda s: s[0].sort_key)
 261     return render(request, 'catalogue/book_text.html', locals())
 262
 263
 264 @never_cache
 265 def book_pdf(request, slug, mobile=False):
 266     book = get_object_or_404(Book, slug=slug)
 267     if not book.accessible(request):
 268         return HttpResponseForbidden("Not authorized.")
 269
 270     # TODO: move to celery
 271     doc = book.wldocument()
 272     # TODO: error handling
 273     customizations = ['26pt', 'nothemes', 'nomargins', 'notoc'] if mobile else None
 274     pdf_file = doc.as_pdf(cover=True, ilustr_path=book.gallery_path(), customizations=customizations)
 275     from catalogue.ebook_utils import serve_file
 276     return serve_file(pdf_file.get_filename(),
 277                 book.slug + '.pdf', 'application/pdf')
 278
 279
 280 @never_cache
 281 def book_epub(request, slug):
 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     epub = doc.as_epub(ilustr_path=book.gallery_path()).get_bytes()
 290     response = HttpResponse(content_type='application/epub+zip')
 291     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 292     response.write(epub)
 293     return response
 294
 295
 296 @never_cache
 297 def book_mobi(request, slug):
 298     book = get_object_or_404(Book, slug=slug)
 299     if not book.accessible(request):
 300         return HttpResponseForbidden("Not authorized.")
 301
 302     # TODO: move to celery
 303     doc = book.wldocument()
 304     # TODO: error handling
 305     mobi = doc.as_mobi(ilustr_path=book.gallery_path()).get_bytes()
 306     response = HttpResponse(content_type='application/x-mobipocket-ebook')
 307     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.mobi'
 308     response.write(mobi)
 309     return response
 310
 311
 312 @never_cache
 313 def revision(request, slug, chunk=None):
 314     try:
 315         doc = Chunk.get(slug, chunk)
 316     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 317         raise Http404
 318     if not doc.book.accessible(request):
 319         return HttpResponseForbidden("Not authorized.")
 320     return http.HttpResponse(str(doc.revision()))
 321
 322
 323 def book(request, slug):
 324     book = get_object_or_404(Book, slug=slug)
 325     if not book.accessible(request):
 326         return HttpResponseForbidden("Not authorized.")
 327
 328     if request.user.has_perm('catalogue.change_book'):
 329         if request.method == "POST":
 330             form = forms.BookForm(request.POST, instance=book)
 331             if form.is_valid():
 332                 form.save()
 333                 return http.HttpResponseRedirect(book.get_absolute_url())
 334         else:
 335             form = forms.BookForm(instance=book)
 336         publish_options_form = forms.PublishOptionsForm()
 337         editable = True
 338     else:
 339         form = forms.ReadonlyBookForm(instance=book)
 340         publish_options_form = forms.PublishOptionsForm()
 341         editable = False
 342
 343     publish_error = book.publishable_error()
 344     publishable = publish_error is None
 345
 346     return render(request, "catalogue/book_detail.html", {
 347         "book": book,
 348         "publishable": publishable,
 349         "publishable_error": publish_error,
 350         "form": form,
 351         "publish_options_form": publish_options_form,
 352         "editable": editable,
 353     })
 354
 355
 356 def image(request, slug):
 357     image = get_object_or_404(Image, slug=slug)
 358     if not image.accessible(request):
 359         return HttpResponseForbidden("Not authorized.")
 360
 361     if request.user.has_perm('catalogue.change_image'):
 362         if request.method == "POST":
 363             form = forms.ImageForm(request.POST, instance=image)
 364             if form.is_valid():
 365                 form.save()
 366                 return http.HttpResponseRedirect(image.get_absolute_url())
 367         else:
 368             form = forms.ImageForm(instance=image)
 369         editable = True
 370     else:
 371         form = forms.ReadonlyImageForm(instance=image)
 372         editable = False
 373
 374     publish_error = image.publishable_error()
 375     publishable = publish_error is None
 376
 377     return render(request, "catalogue/image_detail.html", {
 378         "object": image,
 379         "publishable": publishable,
 380         "publishable_error": publish_error,
 381         "form": form,
 382         "editable": editable,
 383     })
 384
 385
 386 @permission_required('catalogue.add_chunk')
 387 def chunk_add(request, slug, chunk):
 388     try:
 389         doc = Chunk.get(slug, chunk)
 390     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 391         raise Http404
 392     if not doc.book.accessible(request):
 393         return HttpResponseForbidden("Not authorized.")
 394
 395     if request.method == "POST":
 396         form = forms.ChunkAddForm(request.POST, instance=doc)
 397         if form.is_valid():
 398             if request.user.is_authenticated():
 399                 creator = request.user
 400             else:
 401                 creator = None
 402             doc.split(creator=creator,
 403                 slug=form.cleaned_data['slug'],
 404                 title=form.cleaned_data['title'],
 405                 gallery_start=form.cleaned_data['gallery_start'],
 406                 user=form.cleaned_data['user'],
 407                 stage=form.cleaned_data['stage']
 408             )
 409
 410             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 411     else:
 412         form = forms.ChunkAddForm(initial={
 413                 "slug": str(doc.number + 1),
 414                 "title": "cz. %d" % (doc.number + 1, ),
 415         })
 416
 417     return render(request, "catalogue/chunk_add.html", {
 418         "chunk": doc,
 419         "form": form,
 420     })
 421
 422
 423 @login_required
 424 def chunk_edit(request, slug, chunk):
 425     try:
 426         doc = Chunk.get(slug, chunk)
 427     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 428         raise Http404
 429     if not doc.book.accessible(request):
 430         return HttpResponseForbidden("Not authorized.")
 431
 432     if request.method == "POST":
 433         form = forms.ChunkForm(request.POST, instance=doc)
 434         if form.is_valid():
 435             form.save()
 436             go_next = request.GET.get('next', None)
 437             if go_next:
 438                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 439             else:
 440                 go_next = doc.book.get_absolute_url()
 441             return http.HttpResponseRedirect(go_next)
 442     else:
 443         form = forms.ChunkForm(instance=doc)
 444
 445     referer = request.META.get('HTTP_REFERER')
 446     if referer:
 447         parts = urlsplit(referer)
 448         parts = ['', ''] + list(parts[2:])
 449         go_next = urlquote_plus(urlunsplit(parts))
 450     else:
 451         go_next = ''
 452
 453     return render(request, "catalogue/chunk_edit.html", {
 454         "chunk": doc,
 455         "form": form,
 456         "go_next": go_next,
 457     })
 458
 459
 460 @transaction.atomic
 461 @login_required
 462 @require_POST
 463 def chunk_mass_edit(request):
 464     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 465     chunks = map(lambda i: Chunk.objects.get(id=i), ids)
 466
 467     stage = request.POST.get('stage')
 468     if stage:
 469         try:
 470             stage = Chunk.tag_model.objects.get(slug=stage)
 471         except Chunk.DoesNotExist as e:
 472             stage = None
 473
 474         for c in chunks: c.stage = stage
 475
 476     username = request.POST.get('user')
 477     logger.info("username: %s" % username)
 478     logger.info(request.POST)
 479     if username:
 480         try:
 481             user = User.objects.get(username=username)
 482         except User.DoesNotExist as e:
 483             user = None
 484
 485         for c in chunks: c.user = user
 486
 487     project_id = request.POST.get('project')
 488     if project_id:
 489         try:
 490             project = Project.objects.get(pk=int(project_id))
 491         except (Project.DoesNotExist, ValueError) as e:
 492             project = None
 493         for c in chunks:
 494             book = c.book
 495             book.project = project
 496             book.save()
 497
 498     for c in chunks: c.save()
 499
 500     return HttpResponse("", content_type="text/plain")
 501
 502
 503 @transaction.atomic
 504 @login_required
 505 @require_POST
 506 def image_mass_edit(request):
 507     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 508     images = map(lambda i: Image.objects.get(id=i), ids)
 509
 510     stage = request.POST.get('stage')
 511     if stage:
 512         try:
 513             stage = Image.tag_model.objects.get(slug=stage)
 514         except Image.DoesNotExist as e:
 515             stage = None
 516
 517         for c in images: c.stage = stage
 518
 519     username = request.POST.get('user')
 520     logger.info("username: %s" % username)
 521     logger.info(request.POST)
 522     if username:
 523         try:
 524             user = User.objects.get(username=username)
 525         except User.DoesNotExist as e:
 526             user = None
 527
 528         for c in images: c.user = user
 529
 530     project_id = request.POST.get('project')
 531     if project_id:
 532         try:
 533             project = Project.objects.get(pk=int(project_id))
 534         except (Project.DoesNotExist, ValueError) as e:
 535             project = None
 536         for c in images:
 537             c.project = project
 538
 539     for c in images: c.save()
 540
 541     return HttpResponse("", content_type="text/plain")
 542
 543
 544 @permission_required('catalogue.change_book')
 545 def book_append(request, slug):
 546     book = get_object_or_404(Book, slug=slug)
 547     if not book.accessible(request):
 548         return HttpResponseForbidden("Not authorized.")
 549
 550     if request.method == "POST":
 551         form = forms.BookAppendForm(book, request.POST)
 552         if form.is_valid():
 553             append_to = form.cleaned_data['append_to']
 554             append_to.append(book)
 555             return http.HttpResponseRedirect(append_to.get_absolute_url())
 556     else:
 557         form = forms.BookAppendForm(book)
 558     return render(request, "catalogue/book_append_to.html", {
 559         "book": book,
 560         "form": form,
 561
 562         "logout_to": '/',
 563     })
 564
 565
 566 @require_POST
 567 @login_required
 568 def publish(request, slug):
 569     form = forms.PublishOptionsForm(request.POST)
 570     if form.is_valid():
 571         days = form.cleaned_data['days']
 572         beta = form.cleaned_data['beta']
 573     else:
 574         days = 0
 575         beta = False
 576     book = get_object_or_404(Book, slug=slug)
 577     if not book.accessible(request):
 578         return HttpResponseForbidden("Not authorized.")
 579
 580     try:
 581         protocol = 'https://' if request.is_secure() else 'http://'
 582         book.publish(request.user, host=protocol + request.get_host(), days=days, beta=beta)
 583     except NotAuthorizedError:
 584         return http.HttpResponseRedirect(reverse('apiclient_oauth' if not beta else 'apiclient_beta_oauth'))
 585     except BaseException as e:
 586         return http.HttpResponse(repr(e))
 587     else:
 588         return http.HttpResponseRedirect(book.get_absolute_url())
 589
 590
 591 @require_POST
 592 @login_required
 593 def publish_image(request, slug):
 594     image = get_object_or_404(Image, slug=slug)
 595     if not image.accessible(request):
 596         return HttpResponseForbidden("Not authorized.")
 597
 598     try:
 599         image.publish(request.user)
 600     except NotAuthorizedError:
 601         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 602     except BaseException as e:
 603         return http.HttpResponse(e)
 604     else:
 605         return http.HttpResponseRedirect(image.get_absolute_url())
 606
 607
 608 class GalleryView(UploadView):
 609     def get_object(self, request, slug):
 610         book = get_object_or_404(Book, slug=slug)
 611         if not book.gallery:
 612             raise Http404
 613         return book
 614
 615     def breadcrumbs(self):
 616         return [
 617             (_('books'), reverse('catalogue_document_list')),
 618             (self.object.title, self.object.get_absolute_url()),
 619             (_('scan gallery'),),
 620         ]
 621
 622     def get_directory(self):
 623         return "%s%s/" % (settings.IMAGE_DIR, self.object.gallery)
 624
 625
 626 def active_users_list(request):
 627     since = date(date.today().year, 1, 1)
 628     by_user = defaultdict(lambda: 0)
 629     by_email = defaultdict(lambda: 0)
 630     names_by_email = defaultdict(set)
 631     for change_model in (Chunk.change_model, Image.change_model):
 632         for c in change_model.objects.filter(
 633                 created_at__gte=since).order_by(
 634                 'author', 'author_email', 'author_name').values(
 635                 'author', 'author_name', 'author_email').annotate(
 636                 c=Count('author'), ce=Count('author_email')).distinct():
 637             if c['author']:
 638                 by_user[c['author']] += c['c']
 639             else:
 640                 by_email[c['author_email']] += c['ce']
 641                 if c['author_name'].strip():
 642                     names_by_email[c['author_email']].add(c['author_name'])
 643     for user in User.objects.filter(pk__in=by_user):
 644         by_email[user.email] += by_user[user.pk]
 645         names_by_email[user.email].add("%s %s" % (user.first_name, user.last_name))
 646
 647     active_users = []
 648     for email, count in by_email.items():
 649         active_users.append((email, names_by_email[email], count))
 650     active_users.sort(key=lambda x: -x[2])
 651     return render(request, 'catalogue/active_users_list.html', {
 652         'users': active_users,
 653         'since': since,
 654     })
 655
 656
 657 @user_passes_test(lambda u: u.is_superuser)
 658 def mark_final(request):
 659     if request.method == 'POST':
 660         form = forms.MarkFinalForm(data=request.POST)
 661         if form.is_valid():
 662             form.save()
 663             return HttpResponseRedirect(reverse('mark_final_completed'))
 664     else:
 665         form = forms.MarkFinalForm()
 666     return render(request, 'catalogue/mark_final.html', {'form': form})
 667
 668
 669 def mark_final_completed(request):
 670     return render(request, 'catalogue/mark_final_completed.html')