apps/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 StringIO import StringIO
   7 from urllib import unquote
   8 from urlparse import urlsplit, urlunsplit
   9
  10 from django.conf import settings
  11 from django.contrib import auth
  12 from django.contrib.auth.models import User
  13 from django.contrib.auth.decorators import login_required, permission_required
  14 from django.core.urlresolvers import reverse
  15 from django.db.models import Count, Q
  16 from django.db import transaction
  17 from django import http
  18 from django.http import Http404, HttpResponse, HttpResponseForbidden
  19 from django.http.response import HttpResponseRedirect
  20 from django.shortcuts import get_object_or_404, render
  21 from django.utils.encoding import iri_to_uri
  22 from django.utils.http import urlquote_plus
  23 from django.utils.translation import ugettext_lazy as _
  24 from django.views.decorators.http import require_POST
  25 from django_cas.decorators import user_passes_test
  26
  27 from apiclient import NotAuthorizedError
  28 from catalogue import forms
  29 from catalogue import helpers
  30 from catalogue.helpers import active_tab
  31 from catalogue.models import (Book, Chunk, Image, BookPublishRecord,
  32         ChunkPublishRecord, ImagePublishRecord, Project)
  33 from fileupload.views import UploadView
  34
  35 #
  36 # Quick hack around caching problems, TODO: use ETags
  37 #
  38 from django.views.decorators.cache import never_cache
  39
  40 logger = logging.getLogger("fnp.catalogue")
  41
  42
  43 @active_tab('all')
  44 @never_cache
  45 def document_list(request):
  46     return render(request, 'catalogue/document_list.html')
  47
  48
  49 @active_tab('images')
  50 @never_cache
  51 def image_list(request, user=None):
  52     return render(request, 'catalogue/image_list.html')
  53
  54
  55 @never_cache
  56 def user(request, username):
  57     user = get_object_or_404(User, username=username)
  58     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
  59
  60
  61 @login_required
  62 @active_tab('my')
  63 @never_cache
  64 def my(request):
  65     last_books = sorted(request.session.get("wiki_last_books", {}).items(),
  66         key=lambda x: x[1]['time'], reverse=True)
  67     for k, v in last_books:
  68         v['time'] = datetime.fromtimestamp(v['time'])
  69     return render(request, 'catalogue/my_page.html', {
  70         'last_books': last_books,
  71         "logout_to": '/',
  72         })
  73
  74
  75 @active_tab('users')
  76 def users(request):
  77     return render(request, 'catalogue/user_list.html', {
  78         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  79             '-count', 'last_name', 'first_name'),
  80     })
  81
  82
  83 @active_tab('activity')
  84 def activity(request, isodate=None):
  85     today = date.today()
  86     try:
  87         day = helpers.parse_isodate(isodate)
  88     except ValueError:
  89         day = today
  90
  91     if day > today:
  92         raise Http404
  93     if day != today:
  94         next_day = day + timedelta(1)
  95     prev_day = day - timedelta(1)
  96
  97     return render(request, 'catalogue/activity.html', locals())
  98
  99
 100 @never_cache
 101 def logout_then_redirect(request):
 102     auth.logout(request)
 103     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 104
 105
 106 @permission_required('catalogue.add_book')
 107 @active_tab('create')
 108 def create_missing(request, slug=None):
 109     if slug is None:
 110         slug = ''
 111     slug = slug.replace(' ', '-')
 112
 113     if request.method == "POST":
 114         form = forms.DocumentCreateForm(request.POST, request.FILES)
 115         if form.is_valid():
 116
 117             if request.user.is_authenticated():
 118                 creator = request.user
 119             else:
 120                 creator = None
 121             book = Book.create(
 122                 text=form.cleaned_data['text'],
 123                 creator=creator,
 124                 slug=form.cleaned_data['slug'],
 125                 title=form.cleaned_data['title'],
 126                 gallery=form.cleaned_data['gallery'],
 127             )
 128
 129             return http.HttpResponseRedirect(reverse("catalogue_book", args=[book.slug]))
 130     else:
 131         form = forms.DocumentCreateForm(initial={
 132                 "slug": slug,
 133                 "title": slug.replace('-', ' ').title(),
 134                 "gallery": slug,
 135         })
 136
 137     return render(request, "catalogue/document_create_missing.html", {
 138         "slug": slug,
 139         "form": form,
 140
 141         "logout_to": '/',
 142     })
 143
 144
 145 @permission_required('catalogue.add_book')
 146 @active_tab('upload')
 147 def upload(request):
 148     if request.method == "POST":
 149         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 150         if form.is_valid():
 151             from slugify import slugify
 152
 153             if request.user.is_authenticated():
 154                 creator = request.user
 155             else:
 156                 creator = None
 157
 158             zip = form.cleaned_data['zip']
 159             skipped_list = []
 160             ok_list = []
 161             error_list = []
 162             slugs = {}
 163             existing = [book.slug for book in Book.objects.all()]
 164             for filename in zip.namelist():
 165                 if filename[-1] == '/':
 166                     continue
 167                 title = os.path.basename(filename)[:-4]
 168                 slug = slugify(title)
 169                 if not (slug and filename.endswith('.xml')):
 170                     skipped_list.append(filename)
 171                 elif slug in slugs:
 172                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 173                 elif slug in existing:
 174                     error_list.append((filename, slug, _('Slug already used in repository.')))
 175                 else:
 176                     try:
 177                         zip.read(filename).decode('utf-8') # test read
 178                         ok_list.append((filename, slug, title))
 179                     except UnicodeDecodeError:
 180                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 181                     slugs[slug] = filename
 182
 183             if not error_list:
 184                 for filename, slug, title in ok_list:
 185                     book = Book.create(
 186                         text=zip.read(filename).decode('utf-8'),
 187                         creator=creator,
 188                         slug=slug,
 189                         title=title,
 190                     )
 191
 192             return render(request, "catalogue/document_upload.html", {
 193                 "form": form,
 194                 "ok_list": ok_list,
 195                 "skipped_list": skipped_list,
 196                 "error_list": error_list,
 197
 198                 "logout_to": '/',
 199             })
 200     else:
 201         form = forms.DocumentsUploadForm()
 202
 203     return render(request, "catalogue/document_upload.html", {
 204         "form": form,
 205
 206         "logout_to": '/',
 207     })
 208
 209
 210 def serve_xml(request, book, slug):
 211     if not book.accessible(request):
 212         return HttpResponseForbidden("Not authorized.")
 213     xml = book.materialize(publishable=True)
 214     response = http.HttpResponse(xml, content_type='application/xml')
 215     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 216     return response
 217
 218
 219 @never_cache
 220 def book_xml(request, slug):
 221     book = get_object_or_404(Book, slug=slug)
 222     return serve_xml(request, book, slug)
 223
 224
 225 @never_cache
 226 def book_xml_dc(request, slug):
 227     book = get_object_or_404(Book, dc_slug=slug)
 228     return serve_xml(request, book, slug)
 229
 230
 231 @never_cache
 232 def book_txt(request, slug):
 233     book = get_object_or_404(Book, slug=slug)
 234     if not book.accessible(request):
 235         return HttpResponseForbidden("Not authorized.")
 236
 237     doc = book.wldocument()
 238     text = doc.as_text().get_string()
 239     response = http.HttpResponse(text, content_type='text/plain')
 240     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 241     return response
 242
 243
 244 @never_cache
 245 def book_html(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(parse_dublincore=False)
 251     html = doc.as_html(options={'gallery': "'%s'" % book.gallery_url()})
 252
 253     html = html.get_string() if html is not None else ''
 254     # response = http.HttpResponse(html, content_type='text/html')
 255     # return response
 256     # book_themes = {}
 257     # for fragment in book.fragments.all().iterator():
 258     #     for theme in fragment.tags.filter(category='theme').iterator():
 259     #         book_themes.setdefault(theme, []).append(fragment)
 260
 261     # book_themes = book_themes.items()
 262     # book_themes.sort(key=lambda s: s[0].sort_key)
 263     return render(request, 'catalogue/book_text.html', locals())
 264
 265
 266 @never_cache
 267 def book_pdf(request, slug):
 268     book = get_object_or_404(Book, slug=slug)
 269     if not book.accessible(request):
 270         return HttpResponseForbidden("Not authorized.")
 271
 272     # TODO: move to celery
 273     doc = book.wldocument()
 274     # TODO: error handling
 275     pdf_file = doc.as_pdf(cover=True, ilustr_path=book.gallery_path())
 276     from catalogue.ebook_utils import serve_file
 277     return serve_file(pdf_file.get_filename(),
 278                 book.slug + '.pdf', 'application/pdf')
 279
 280
 281 @never_cache
 282 def book_epub(request, slug):
 283     book = get_object_or_404(Book, slug=slug)
 284     if not book.accessible(request):
 285         return HttpResponseForbidden("Not authorized.")
 286
 287     # TODO: move to celery
 288     doc = book.wldocument()
 289     # TODO: error handling
 290     epub = doc.as_epub(ilustr_path=book.gallery_path()).get_string()
 291     response = HttpResponse(content_type='application/epub+zip')
 292     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 293     response.write(epub)
 294     return response
 295
 296
 297 @never_cache
 298 def book_mobi(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()
 305     # TODO: error handling
 306     mobi = doc.as_mobi(ilustr_path=book.gallery_path()).get_string()
 307     response = HttpResponse(content_type='application/x-mobipocket-ebook')
 308     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.mobi'
 309     response.write(mobi)
 310     return response
 311
 312
 313 @never_cache
 314 def revision(request, slug, chunk=None):
 315     try:
 316         doc = Chunk.get(slug, chunk)
 317     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 318         raise Http404
 319     if not doc.book.accessible(request):
 320         return HttpResponseForbidden("Not authorized.")
 321     return http.HttpResponse(str(doc.revision()))
 322
 323
 324 def book(request, slug):
 325     book = get_object_or_404(Book, slug=slug)
 326     if not book.accessible(request):
 327         return HttpResponseForbidden("Not authorized.")
 328
 329     if request.user.has_perm('catalogue.change_book'):
 330         if request.method == "POST":
 331             form = forms.BookForm(request.POST, instance=book)
 332             if form.is_valid():
 333                 form.save()
 334                 return http.HttpResponseRedirect(book.get_absolute_url())
 335         else:
 336             form = forms.BookForm(instance=book)
 337         publish_options_form = forms.PublishOptionsForm()
 338         editable = True
 339     else:
 340         form = forms.ReadonlyBookForm(instance=book)
 341         publish_options_form = forms.PublishOptionsForm()
 342         editable = False
 343
 344     publish_error = book.publishable_error()
 345     publishable = publish_error is None
 346
 347     return render(request, "catalogue/book_detail.html", {
 348         "book": book,
 349         "publishable": publishable,
 350         "publishable_error": publish_error,
 351         "form": form,
 352         "publish_options_form": publish_options_form,
 353         "editable": editable,
 354     })
 355
 356
 357 def image(request, slug):
 358     image = get_object_or_404(Image, slug=slug)
 359     if not image.accessible(request):
 360         return HttpResponseForbidden("Not authorized.")
 361
 362     if request.user.has_perm('catalogue.change_image'):
 363         if request.method == "POST":
 364             form = forms.ImageForm(request.POST, instance=image)
 365             if form.is_valid():
 366                 form.save()
 367                 return http.HttpResponseRedirect(image.get_absolute_url())
 368         else:
 369             form = forms.ImageForm(instance=image)
 370         editable = True
 371     else:
 372         form = forms.ReadonlyImageForm(instance=image)
 373         editable = False
 374
 375     publish_error = image.publishable_error()
 376     publishable = publish_error is None
 377
 378     return render(request, "catalogue/image_detail.html", {
 379         "object": image,
 380         "publishable": publishable,
 381         "publishable_error": publish_error,
 382         "form": form,
 383         "editable": editable,
 384     })
 385
 386
 387 @permission_required('catalogue.add_chunk')
 388 def chunk_add(request, slug, chunk):
 389     try:
 390         doc = Chunk.get(slug, chunk)
 391     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 392         raise Http404
 393     if not doc.book.accessible(request):
 394         return HttpResponseForbidden("Not authorized.")
 395
 396     if request.method == "POST":
 397         form = forms.ChunkAddForm(request.POST, instance=doc)
 398         if form.is_valid():
 399             if request.user.is_authenticated():
 400                 creator = request.user
 401             else:
 402                 creator = None
 403             doc.split(creator=creator,
 404                 slug=form.cleaned_data['slug'],
 405                 title=form.cleaned_data['title'],
 406                 gallery_start=form.cleaned_data['gallery_start'],
 407                 user=form.cleaned_data['user'],
 408                 stage=form.cleaned_data['stage']
 409             )
 410
 411             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 412     else:
 413         form = forms.ChunkAddForm(initial={
 414                 "slug": str(doc.number + 1),
 415                 "title": "cz. %d" % (doc.number + 1, ),
 416         })
 417
 418     return render(request, "catalogue/chunk_add.html", {
 419         "chunk": doc,
 420         "form": form,
 421     })
 422
 423
 424 @login_required
 425 def chunk_edit(request, slug, chunk):
 426     try:
 427         doc = Chunk.get(slug, chunk)
 428     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 429         raise Http404
 430     if not doc.book.accessible(request):
 431         return HttpResponseForbidden("Not authorized.")
 432
 433     if request.method == "POST":
 434         form = forms.ChunkForm(request.POST, instance=doc)
 435         if form.is_valid():
 436             form.save()
 437             go_next = request.GET.get('next', None)
 438             if go_next:
 439                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 440             else:
 441                 go_next = doc.book.get_absolute_url()
 442             return http.HttpResponseRedirect(go_next)
 443     else:
 444         form = forms.ChunkForm(instance=doc)
 445
 446     referer = request.META.get('HTTP_REFERER')
 447     if referer:
 448         parts = urlsplit(referer)
 449         parts = ['', ''] + list(parts[2:])
 450         go_next = urlquote_plus(urlunsplit(parts))
 451     else:
 452         go_next = ''
 453
 454     return render(request, "catalogue/chunk_edit.html", {
 455         "chunk": doc,
 456         "form": form,
 457         "go_next": go_next,
 458     })
 459
 460
 461 @transaction.atomic
 462 @login_required
 463 @require_POST
 464 def chunk_mass_edit(request):
 465     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 466     chunks = map(lambda i: Chunk.objects.get(id=i), ids)
 467
 468     stage = request.POST.get('stage')
 469     if stage:
 470         try:
 471             stage = Chunk.tag_model.objects.get(slug=stage)
 472         except Chunk.DoesNotExist, e:
 473             stage = None
 474
 475         for c in chunks: c.stage = stage
 476
 477     username = request.POST.get('user')
 478     logger.info("username: %s" % username)
 479     logger.info(request.POST)
 480     if username:
 481         try:
 482             user = User.objects.get(username=username)
 483         except User.DoesNotExist, e:
 484             user = None
 485
 486         for c in chunks: c.user = user
 487
 488     project_id = request.POST.get('project')
 489     if project_id:
 490         try:
 491             project = Project.objects.get(pk=int(project_id))
 492         except (Project.DoesNotExist, ValueError), e:
 493             project = None
 494         for c in chunks:
 495             book = c.book
 496             book.project = project
 497             book.save()
 498
 499     for c in chunks: c.save()
 500
 501     return HttpResponse("", content_type="text/plain")
 502
 503
 504 @transaction.atomic
 505 @login_required
 506 @require_POST
 507 def image_mass_edit(request):
 508     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 509     images = map(lambda i: Image.objects.get(id=i), ids)
 510
 511     stage = request.POST.get('stage')
 512     if stage:
 513         try:
 514             stage = Image.tag_model.objects.get(slug=stage)
 515         except Image.DoesNotExist, e:
 516             stage = None
 517
 518         for c in images: c.stage = stage
 519
 520     username = request.POST.get('user')
 521     logger.info("username: %s" % username)
 522     logger.info(request.POST)
 523     if username:
 524         try:
 525             user = User.objects.get(username=username)
 526         except User.DoesNotExist, e:
 527             user = None
 528
 529         for c in images: c.user = user
 530
 531     project_id = request.POST.get('project')
 532     if project_id:
 533         try:
 534             project = Project.objects.get(pk=int(project_id))
 535         except (Project.DoesNotExist, ValueError), e:
 536             project = None
 537         for c in images:
 538             c.project = project
 539
 540     for c in images: c.save()
 541
 542     return HttpResponse("", content_type="text/plain")
 543
 544
 545 @permission_required('catalogue.change_book')
 546 def book_append(request, slug):
 547     book = get_object_or_404(Book, slug=slug)
 548     if not book.accessible(request):
 549         return HttpResponseForbidden("Not authorized.")
 550
 551     if request.method == "POST":
 552         form = forms.BookAppendForm(book, request.POST)
 553         if form.is_valid():
 554             append_to = form.cleaned_data['append_to']
 555             append_to.append(book)
 556             return http.HttpResponseRedirect(append_to.get_absolute_url())
 557     else:
 558         form = forms.BookAppendForm(book)
 559     return render(request, "catalogue/book_append_to.html", {
 560         "book": book,
 561         "form": form,
 562
 563         "logout_to": '/',
 564     })
 565
 566
 567 @require_POST
 568 @login_required
 569 def publish(request, slug):
 570     form = forms.PublishOptionsForm(request.POST)
 571     if form.is_valid():
 572         days = form.cleaned_data['days']
 573         beta = form.cleaned_data['beta']
 574     else:
 575         days = 0
 576         beta = False
 577     book = get_object_or_404(Book, slug=slug)
 578     if not book.accessible(request):
 579         return HttpResponseForbidden("Not authorized.")
 580
 581     try:
 582         protocol = 'https://' if request.is_secure() else 'http://'
 583         book.publish(request.user, host=protocol + request.get_host(), days=days, beta=beta)
 584     except NotAuthorizedError:
 585         return http.HttpResponseRedirect(reverse('apiclient_oauth' if not beta else 'apiclient_beta_oauth'))
 586     except BaseException, e:
 587         return http.HttpResponse(repr(e))
 588     else:
 589         return http.HttpResponseRedirect(book.get_absolute_url())
 590
 591
 592 @require_POST
 593 @login_required
 594 def publish_image(request, slug):
 595     image = get_object_or_404(Image, slug=slug)
 596     if not image.accessible(request):
 597         return HttpResponseForbidden("Not authorized.")
 598
 599     try:
 600         image.publish(request.user)
 601     except NotAuthorizedError:
 602         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 603     except BaseException, e:
 604         return http.HttpResponse(e)
 605     else:
 606         return http.HttpResponseRedirect(image.get_absolute_url())
 607
 608
 609 class GalleryView(UploadView):
 610     def get_object(self, request, slug):
 611         book = get_object_or_404(Book, slug=slug)
 612         if not book.gallery:
 613             raise Http404
 614         return book
 615
 616     def breadcrumbs(self):
 617         return [
 618             (_('books'), reverse('catalogue_document_list')),
 619             (self.object.title, self.object.get_absolute_url()),
 620             (_('scan gallery'),),
 621         ]
 622
 623     def get_directory(self):
 624         return "%s%s/" % (settings.IMAGE_DIR, self.object.gallery)
 625
 626
 627 def active_users_list(request):
 628     since = date(date.today().year, 1, 1)
 629     by_user = defaultdict(lambda: 0)
 630     by_email = defaultdict(lambda: 0)
 631     names_by_email = defaultdict(set)
 632     for change_model in (Chunk.change_model, Image.change_model):
 633         for c in change_model.objects.filter(
 634                 created_at__gte=since).order_by(
 635                 'author', 'author_email', 'author_name').values(
 636                 'author', 'author_name', 'author_email').annotate(
 637                 c=Count('author'), ce=Count('author_email')).distinct():
 638             if c['author']:
 639                 by_user[c['author']] += c['c']
 640             else:
 641                 by_email[c['author_email']] += c['ce']
 642                 if c['author_name'].strip():
 643                     names_by_email[c['author_email']].add(c['author_name'])
 644     for user in User.objects.filter(pk__in=by_user):
 645         by_email[user.email] += by_user[user.pk]
 646         names_by_email[user.email].add("%s %s" % (user.first_name, user.last_name))
 647
 648     active_users = []
 649     for email, count in by_email.items():
 650         active_users.append((email, names_by_email[email], count))
 651     active_users.sort(key=lambda x: -x[2])
 652     return render(request, 'catalogue/active_users_list.html', {
 653         'users': active_users,
 654         'since': since,
 655     })
 656
 657
 658 @user_passes_test(lambda u: u.is_superuser)
 659 def mark_final(request):
 660     if request.method == 'POST':
 661         form = forms.MarkFinalForm(data=request.POST)
 662         if form.is_valid():
 663             form.save()
 664             return HttpResponseRedirect(reverse('mark_final_completed'))
 665     else:
 666         form = forms.MarkFinalForm()
 667     return render(request, 'catalogue/mark_final.html', {'form': form})
 668
 669
 670 def mark_final_completed(request):
 671     return render(request, 'catalogue/mark_final_completed.html')