apps/catalogue/views.py

   1 from collections import defaultdict
   2 from datetime import datetime, date, timedelta
   3 import logging
   4 import os
   5 from StringIO import StringIO
   6 from urllib import unquote
   7 from urlparse import urlsplit, urlunsplit
   8
   9 from django.conf import settings
  10 from django.contrib import auth
  11 from django.contrib.auth.models import User
  12 from django.contrib.auth.decorators import login_required, permission_required
  13 from django.core.urlresolvers import reverse
  14 from django.db.models import Count, Q
  15 from django.db import transaction
  16 from django import http
  17 from django.http import Http404, HttpResponse, HttpResponseForbidden
  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
  24 from apiclient import NotAuthorizedError
  25 from catalogue import forms
  26 from catalogue import helpers
  27 from catalogue.helpers import active_tab
  28 from catalogue.models import (Book, Chunk, Image, BookPublishRecord,
  29         ChunkPublishRecord, ImagePublishRecord, Project)
  30 from fileupload.views import UploadView
  31
  32 #
  33 # Quick hack around caching problems, TODO: use ETags
  34 #
  35 from django.views.decorators.cache import never_cache
  36
  37 logger = logging.getLogger("fnp.catalogue")
  38
  39
  40 @active_tab('all')
  41 @never_cache
  42 def document_list(request):
  43     return render(request, 'catalogue/document_list.html')
  44
  45
  46 @active_tab('images')
  47 @never_cache
  48 def image_list(request, user=None):
  49     return render(request, 'catalogue/image_list.html')
  50
  51
  52 @never_cache
  53 def user(request, username):
  54     user = get_object_or_404(User, username=username)
  55     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
  56
  57
  58 @login_required
  59 @active_tab('my')
  60 @never_cache
  61 def my(request):
  62     last_books = sorted(request.session.get("wiki_last_books", {}).items(),
  63         key=lambda x: x[1]['time'], reverse=True)
  64     for k, v in last_books:
  65         v['time'] = datetime.fromtimestamp(v['time'])
  66     return render(request, 'catalogue/my_page.html', {
  67         'last_books': last_books,
  68         "logout_to": '/',
  69         })
  70
  71
  72 @active_tab('users')
  73 def users(request):
  74     return render(request, 'catalogue/user_list.html', {
  75         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  76             '-count', 'last_name', 'first_name'),
  77     })
  78
  79
  80 @active_tab('activity')
  81 def activity(request, isodate=None):
  82     today = date.today()
  83     try:
  84         day = helpers.parse_isodate(isodate)
  85     except ValueError:
  86         day = today
  87
  88     if day > today:
  89         raise Http404
  90     if day != today:
  91         next_day = day + timedelta(1)
  92     prev_day = day - timedelta(1)
  93
  94     return render(request, 'catalogue/activity.html', locals())
  95
  96
  97 @never_cache
  98 def logout_then_redirect(request):
  99     auth.logout(request)
 100     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 101
 102
 103 @permission_required('catalogue.add_book')
 104 @active_tab('create')
 105 def create_missing(request, slug=None):
 106     if slug is None:
 107         slug = ''
 108     slug = slug.replace(' ', '-')
 109
 110     if request.method == "POST":
 111         form = forms.DocumentCreateForm(request.POST, request.FILES)
 112         if form.is_valid():
 113
 114             if request.user.is_authenticated():
 115                 creator = request.user
 116             else:
 117                 creator = None
 118             book = Book.create(
 119                 text=form.cleaned_data['text'],
 120                 creator=creator,
 121                 slug=form.cleaned_data['slug'],
 122                 title=form.cleaned_data['title'],
 123                 gallery=form.cleaned_data['gallery'],
 124             )
 125
 126             return http.HttpResponseRedirect(reverse("catalogue_book", args=[book.slug]))
 127     else:
 128         form = forms.DocumentCreateForm(initial={
 129                 "slug": slug,
 130                 "title": slug.replace('-', ' ').title(),
 131                 "gallery": slug,
 132         })
 133
 134     return render(request, "catalogue/document_create_missing.html", {
 135         "slug": slug,
 136         "form": form,
 137
 138         "logout_to": '/',
 139     })
 140
 141
 142 @permission_required('catalogue.add_book')
 143 @active_tab('upload')
 144 def upload(request):
 145     if request.method == "POST":
 146         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 147         if form.is_valid():
 148             from slugify import slugify
 149
 150             if request.user.is_authenticated():
 151                 creator = request.user
 152             else:
 153                 creator = None
 154
 155             zip = form.cleaned_data['zip']
 156             skipped_list = []
 157             ok_list = []
 158             error_list = []
 159             slugs = {}
 160             existing = [book.slug for book in Book.objects.all()]
 161             for filename in zip.namelist():
 162                 if filename[-1] == '/':
 163                     continue
 164                 title = os.path.basename(filename)[:-4]
 165                 slug = slugify(title)
 166                 if not (slug and filename.endswith('.xml')):
 167                     skipped_list.append(filename)
 168                 elif slug in slugs:
 169                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 170                 elif slug in existing:
 171                     error_list.append((filename, slug, _('Slug already used in repository.')))
 172                 else:
 173                     try:
 174                         zip.read(filename).decode('utf-8') # test read
 175                         ok_list.append((filename, slug, title))
 176                     except UnicodeDecodeError:
 177                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 178                     slugs[slug] = filename
 179
 180             if not error_list:
 181                 for filename, slug, title in ok_list:
 182                     book = Book.create(
 183                         text=zip.read(filename).decode('utf-8'),
 184                         creator=creator,
 185                         slug=slug,
 186                         title=title,
 187                     )
 188
 189             return render(request, "catalogue/document_upload.html", {
 190                 "form": form,
 191                 "ok_list": ok_list,
 192                 "skipped_list": skipped_list,
 193                 "error_list": error_list,
 194
 195                 "logout_to": '/',
 196             })
 197     else:
 198         form = forms.DocumentsUploadForm()
 199
 200     return render(request, "catalogue/document_upload.html", {
 201         "form": form,
 202
 203         "logout_to": '/',
 204     })
 205
 206
 207 @never_cache
 208 def book_xml(request, slug):
 209     book = get_object_or_404(Book, slug=slug)
 210     if not book.accessible(request):
 211         return HttpResponseForbidden("Not authorized.")
 212     xml = book.materialize()
 213
 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_txt(request, slug):
 221     book = get_object_or_404(Book, slug=slug)
 222     if not book.accessible(request):
 223         return HttpResponseForbidden("Not authorized.")
 224
 225     doc = book.wldocument()
 226     text = doc.as_text().get_string()
 227     response = http.HttpResponse(text, content_type='text/plain')
 228     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 229     return response
 230
 231
 232 @never_cache
 233 def book_html(request, slug):
 234     book = get_object_or_404(Book, slug=slug)
 235     if not book.accessible(request):
 236         return HttpResponseForbidden("Not authorized.")
 237
 238     doc = book.wldocument(parse_dublincore=False)
 239     html = doc.as_html(options={'gallery': "'%s'" % book.gallery_url()})
 240
 241     html = html.get_string() if html is not None else ''
 242     # response = http.HttpResponse(html, content_type='text/html')
 243     # return response
 244     # book_themes = {}
 245     # for fragment in book.fragments.all().iterator():
 246     #     for theme in fragment.tags.filter(category='theme').iterator():
 247     #         book_themes.setdefault(theme, []).append(fragment)
 248
 249     # book_themes = book_themes.items()
 250     # book_themes.sort(key=lambda s: s[0].sort_key)
 251     return render(request, 'catalogue/book_text.html', locals())
 252
 253
 254 @never_cache
 255 def book_pdf(request, slug):
 256     book = get_object_or_404(Book, slug=slug)
 257     if not book.accessible(request):
 258         return HttpResponseForbidden("Not authorized.")
 259
 260     # TODO: move to celery
 261     doc = book.wldocument()
 262     # TODO: error handling
 263     pdf_file = doc.as_pdf(cover=True, ilustr_path=book.gallery_path())
 264     from catalogue.ebook_utils import serve_file
 265     return serve_file(pdf_file.get_filename(),
 266                 book.slug + '.pdf', 'application/pdf')
 267
 268
 269 @never_cache
 270 def book_epub(request, slug):
 271     book = get_object_or_404(Book, slug=slug)
 272     if not book.accessible(request):
 273         return HttpResponseForbidden("Not authorized.")
 274
 275     # TODO: move to celery
 276     doc = book.wldocument()
 277     # TODO: error handling
 278     epub = doc.as_epub(ilustr_path=book.gallery_path()).get_string()
 279     response = HttpResponse(content_type='application/epub+zip')
 280     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 281     response.write(epub)
 282     return response
 283
 284
 285 @never_cache
 286 def book_mobi(request, slug):
 287     book = get_object_or_404(Book, slug=slug)
 288     if not book.accessible(request):
 289         return HttpResponseForbidden("Not authorized.")
 290
 291     # TODO: move to celery
 292     doc = book.wldocument()
 293     # TODO: error handling
 294     mobi = doc.as_mobi(ilustr_path=book.gallery_path()).get_string()
 295     response = HttpResponse(content_type='application/x-mobipocket-ebook')
 296     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.mobi'
 297     response.write(mobi)
 298     return response
 299
 300
 301 @never_cache
 302 def revision(request, slug, chunk=None):
 303     try:
 304         doc = Chunk.get(slug, chunk)
 305     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 306         raise Http404
 307     if not doc.book.accessible(request):
 308         return HttpResponseForbidden("Not authorized.")
 309     return http.HttpResponse(str(doc.revision()))
 310
 311
 312 def book(request, slug):
 313     book = get_object_or_404(Book, slug=slug)
 314     if not book.accessible(request):
 315         return HttpResponseForbidden("Not authorized.")
 316
 317     if request.user.has_perm('catalogue.change_book'):
 318         if request.method == "POST":
 319             form = forms.BookForm(request.POST, instance=book)
 320             if form.is_valid():
 321                 form.save()
 322                 return http.HttpResponseRedirect(book.get_absolute_url())
 323         else:
 324             form = forms.BookForm(instance=book)
 325         editable = True
 326     else:
 327         form = forms.ReadonlyBookForm(instance=book)
 328         editable = False
 329
 330     publish_error = book.publishable_error()
 331     publishable = publish_error is None
 332
 333     return render(request, "catalogue/book_detail.html", {
 334         "book": book,
 335         "publishable": publishable,
 336         "publishable_error": publish_error,
 337         "form": form,
 338         "editable": editable,
 339     })
 340
 341
 342 def image(request, slug):
 343     image = get_object_or_404(Image, slug=slug)
 344     if not image.accessible(request):
 345         return HttpResponseForbidden("Not authorized.")
 346
 347     if request.user.has_perm('catalogue.change_image'):
 348         if request.method == "POST":
 349             form = forms.ImageForm(request.POST, instance=image)
 350             if form.is_valid():
 351                 form.save()
 352                 return http.HttpResponseRedirect(image.get_absolute_url())
 353         else:
 354             form = forms.ImageForm(instance=image)
 355         editable = True
 356     else:
 357         form = forms.ReadonlyImageForm(instance=image)
 358         editable = False
 359
 360     publish_error = image.publishable_error()
 361     publishable = publish_error is None
 362
 363     return render(request, "catalogue/image_detail.html", {
 364         "object": image,
 365         "publishable": publishable,
 366         "publishable_error": publish_error,
 367         "form": form,
 368         "editable": editable,
 369     })
 370
 371
 372 @permission_required('catalogue.add_chunk')
 373 def chunk_add(request, slug, chunk):
 374     try:
 375         doc = Chunk.get(slug, chunk)
 376     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 377         raise Http404
 378     if not doc.book.accessible(request):
 379         return HttpResponseForbidden("Not authorized.")
 380
 381     if request.method == "POST":
 382         form = forms.ChunkAddForm(request.POST, instance=doc)
 383         if form.is_valid():
 384             if request.user.is_authenticated():
 385                 creator = request.user
 386             else:
 387                 creator = None
 388             doc.split(creator=creator,
 389                 slug=form.cleaned_data['slug'],
 390                 title=form.cleaned_data['title'],
 391                 gallery_start=form.cleaned_data['gallery_start'],
 392                 user=form.cleaned_data['user'],
 393                 stage=form.cleaned_data['stage']
 394             )
 395
 396             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 397     else:
 398         form = forms.ChunkAddForm(initial={
 399                 "slug": str(doc.number + 1),
 400                 "title": "cz. %d" % (doc.number + 1, ),
 401         })
 402
 403     return render(request, "catalogue/chunk_add.html", {
 404         "chunk": doc,
 405         "form": form,
 406     })
 407
 408
 409 @login_required
 410 def chunk_edit(request, slug, chunk):
 411     try:
 412         doc = Chunk.get(slug, chunk)
 413     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 414         raise Http404
 415     if not doc.book.accessible(request):
 416         return HttpResponseForbidden("Not authorized.")
 417
 418     if request.method == "POST":
 419         form = forms.ChunkForm(request.POST, instance=doc)
 420         if form.is_valid():
 421             form.save()
 422             go_next = request.GET.get('next', None)
 423             if go_next:
 424                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 425             else:
 426                 go_next = doc.book.get_absolute_url()
 427             return http.HttpResponseRedirect(go_next)
 428     else:
 429         form = forms.ChunkForm(instance=doc)
 430
 431     referer = request.META.get('HTTP_REFERER')
 432     if referer:
 433         parts = urlsplit(referer)
 434         parts = ['', ''] + list(parts[2:])
 435         go_next = urlquote_plus(urlunsplit(parts))
 436     else:
 437         go_next = ''
 438
 439     return render(request, "catalogue/chunk_edit.html", {
 440         "chunk": doc,
 441         "form": form,
 442         "go_next": go_next,
 443     })
 444
 445
 446 @transaction.atomic
 447 @login_required
 448 @require_POST
 449 def chunk_mass_edit(request):
 450     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 451     chunks = map(lambda i: Chunk.objects.get(id=i), ids)
 452
 453     stage = request.POST.get('stage')
 454     if stage:
 455         try:
 456             stage = Chunk.tag_model.objects.get(slug=stage)
 457         except Chunk.DoesNotExist, e:
 458             stage = None
 459
 460         for c in chunks: c.stage = stage
 461
 462     username = request.POST.get('user')
 463     logger.info("username: %s" % username)
 464     logger.info(request.POST)
 465     if username:
 466         try:
 467             user = User.objects.get(username=username)
 468         except User.DoesNotExist, e:
 469             user = None
 470
 471         for c in chunks: c.user = user
 472
 473     project_id = request.POST.get('project')
 474     if project_id:
 475         try:
 476             project = Project.objects.get(pk=int(project_id))
 477         except (Project.DoesNotExist, ValueError), e:
 478             project = None
 479         for c in chunks:
 480             book = c.book
 481             book.project = project
 482             book.save()
 483
 484     for c in chunks: c.save()
 485
 486     return HttpResponse("", content_type="text/plain")
 487
 488
 489 @transaction.atomic
 490 @login_required
 491 @require_POST
 492 def image_mass_edit(request):
 493     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 494     images = map(lambda i: Image.objects.get(id=i), ids)
 495
 496     stage = request.POST.get('stage')
 497     if stage:
 498         try:
 499             stage = Image.tag_model.objects.get(slug=stage)
 500         except Image.DoesNotExist, e:
 501             stage = None
 502
 503         for c in images: c.stage = stage
 504
 505     username = request.POST.get('user')
 506     logger.info("username: %s" % username)
 507     logger.info(request.POST)
 508     if username:
 509         try:
 510             user = User.objects.get(username=username)
 511         except User.DoesNotExist, e:
 512             user = None
 513
 514         for c in images: c.user = user
 515
 516     project_id = request.POST.get('project')
 517     if project_id:
 518         try:
 519             project = Project.objects.get(pk=int(project_id))
 520         except (Project.DoesNotExist, ValueError), e:
 521             project = None
 522         for c in images:
 523             c.project = project
 524
 525     for c in images: c.save()
 526
 527     return HttpResponse("", content_type="text/plain")
 528
 529
 530 @permission_required('catalogue.change_book')
 531 def book_append(request, slug):
 532     book = get_object_or_404(Book, slug=slug)
 533     if not book.accessible(request):
 534         return HttpResponseForbidden("Not authorized.")
 535
 536     if request.method == "POST":
 537         form = forms.BookAppendForm(book, request.POST)
 538         if form.is_valid():
 539             append_to = form.cleaned_data['append_to']
 540             append_to.append(book)
 541             return http.HttpResponseRedirect(append_to.get_absolute_url())
 542     else:
 543         form = forms.BookAppendForm(book)
 544     return render(request, "catalogue/book_append_to.html", {
 545         "book": book,
 546         "form": form,
 547
 548         "logout_to": '/',
 549     })
 550
 551
 552 @require_POST
 553 @login_required
 554 def publish(request, slug):
 555     book = get_object_or_404(Book, slug=slug)
 556     if not book.accessible(request):
 557         return HttpResponseForbidden("Not authorized.")
 558
 559     try:
 560         protocol = 'https://' if request.is_secure() else 'http://'
 561         book.publish(request.user, host=protocol + request.get_host())
 562     except NotAuthorizedError:
 563         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 564     except BaseException, e:
 565         return http.HttpResponse(e)
 566     else:
 567         return http.HttpResponseRedirect(book.get_absolute_url())
 568
 569
 570 @require_POST
 571 @login_required
 572 def publish_image(request, slug):
 573     image = get_object_or_404(Image, slug=slug)
 574     if not image.accessible(request):
 575         return HttpResponseForbidden("Not authorized.")
 576
 577     try:
 578         image.publish(request.user)
 579     except NotAuthorizedError:
 580         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 581     except BaseException, e:
 582         return http.HttpResponse(e)
 583     else:
 584         return http.HttpResponseRedirect(image.get_absolute_url())
 585
 586
 587 class GalleryView(UploadView):
 588     def get_object(self, request, slug):
 589         book = get_object_or_404(Book, slug=slug)
 590         if not book.public and not request.user.has_perm('catalogue.change_book'):
 591             return HttpResponseForbidden()
 592         if not book.gallery:
 593             raise Http404
 594         return book
 595
 596     def breadcrumbs(self):
 597         return [
 598             (_('books'), reverse('catalogue_document_list')),
 599             (self.object.title, self.object.get_absolute_url()),
 600             (_('scan gallery'),),
 601         ]
 602
 603     def get_directory(self):
 604         return "%s%s/" % (settings.IMAGE_DIR, self.object.gallery)
 605
 606
 607 def active_users_list(request):
 608     since = date(date.today().year, 1, 1)
 609     by_user = defaultdict(lambda: 0)
 610     by_email = defaultdict(lambda: 0)
 611     names_by_email = defaultdict(set)
 612     for change_model in (Chunk.change_model, Image.change_model):
 613         for c in change_model.objects.filter(
 614                 created_at__gte=since).order_by(
 615                 'author', 'author_email', 'author_name').values(
 616                 'author', 'author_name', 'author_email').annotate(
 617                 c=Count('author'), ce=Count('author_email')).distinct():
 618             if c['author']:
 619                 by_user[c['author']] += c['c']
 620             else:
 621                 by_email[c['author_email']] += c['ce']
 622                 if c['author_name'].strip():
 623                     names_by_email[c['author_email']].add(c['author_name'])
 624     for user in User.objects.filter(pk__in=by_user):
 625         by_email[user.email] += by_user[user.pk]
 626         names_by_email[user.email].add("%s %s" % (user.first_name, user.last_name))
 627
 628     active_users = []
 629     for email, count in by_email.items():
 630         active_users.append((email, names_by_email[email], count))
 631     active_users.sort(key=lambda x: -x[2])
 632     return render(request, 'catalogue/active_users_list.html', {
 633         'users': active_users,
 634         'since': since,
 635     })
 636
 637