apps/catalogue/views.py

   1 from datetime import datetime, date, timedelta
   2 import logging
   3 import os
   4 from StringIO import StringIO
   5 from urllib import unquote
   6 from urlparse import 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.shortcuts import get_object_or_404, render
  18 from django.utils.encoding import iri_to_uri
  19 from django.utils.http import urlquote_plus
  20 from django.utils.translation import ugettext_lazy as _
  21 from django.views.decorators.http import require_POST
  22
  23 from apiclient import NotAuthorizedError
  24 from catalogue import forms
  25 from catalogue import helpers
  26 from catalogue.helpers import active_tab
  27 from catalogue.models import (Book, Chunk, Image, BookPublishRecord,
  28         ChunkPublishRecord, ImagePublishRecord, Project)
  29 from fileupload.views import UploadView
  30
  31 #
  32 # Quick hack around caching problems, TODO: use ETags
  33 #
  34 from django.views.decorators.cache import never_cache
  35
  36 logger = logging.getLogger("fnp.catalogue")
  37
  38
  39 @active_tab('all')
  40 @never_cache
  41 def document_list(request):
  42     return render(request, 'catalogue/document_list.html')
  43
  44
  45 @active_tab('images')
  46 @never_cache
  47 def image_list(request, user=None):
  48     return render(request, 'catalogue/image_list.html')
  49
  50
  51 @never_cache
  52 def user(request, username):
  53     user = get_object_or_404(User, username=username)
  54     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
  55
  56
  57 @login_required
  58 @active_tab('my')
  59 @never_cache
  60 def my(request):
  61     last_books = sorted(request.session.get("wiki_last_books", {}).items(),
  62         key=lambda x: x[1]['time'], reverse=True)
  63     for k, v in last_books:
  64         v['time'] = datetime.fromtimestamp(v['time'])
  65     return render(request, 'catalogue/my_page.html', {
  66         'last_books': last_books,
  67         "logout_to": '/',
  68         })
  69
  70
  71 @active_tab('users')
  72 def users(request):
  73     return render(request, 'catalogue/user_list.html', {
  74         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  75             '-count', 'last_name', 'first_name'),
  76     })
  77
  78
  79 @active_tab('activity')
  80 def activity(request, isodate=None):
  81     today = date.today()
  82     try:
  83         day = helpers.parse_isodate(isodate)
  84     except ValueError:
  85         day = today
  86
  87     if day > today:
  88         raise Http404
  89     if day != today:
  90         next_day = day + timedelta(1)
  91     prev_day = day - timedelta(1)
  92
  93     return render(request, 'catalogue/activity.html', locals())
  94
  95
  96 @never_cache
  97 def logout_then_redirect(request):
  98     auth.logout(request)
  99     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 100
 101
 102 @permission_required('catalogue.add_book')
 103 @active_tab('create')
 104 def create_missing(request, slug=None):
 105     if slug is None:
 106         slug = ''
 107     slug = slug.replace(' ', '-')
 108
 109     if request.method == "POST":
 110         form = forms.DocumentCreateForm(request.POST, request.FILES)
 111         if form.is_valid():
 112
 113             if request.user.is_authenticated():
 114                 creator = request.user
 115             else:
 116                 creator = None
 117             book = Book.create(
 118                 text=form.cleaned_data['text'],
 119                 creator=creator,
 120                 slug=form.cleaned_data['slug'],
 121                 title=form.cleaned_data['title'],
 122                 gallery=form.cleaned_data['gallery'],
 123             )
 124
 125             return http.HttpResponseRedirect(reverse("catalogue_book", args=[book.slug]))
 126     else:
 127         form = forms.DocumentCreateForm(initial={
 128                 "slug": slug,
 129                 "title": slug.replace('-', ' ').title(),
 130                 "gallery": slug,
 131         })
 132
 133     return render(request, "catalogue/document_create_missing.html", {
 134         "slug": slug,
 135         "form": form,
 136
 137         "logout_to": '/',
 138     })
 139
 140
 141 @permission_required('catalogue.add_book')
 142 @active_tab('upload')
 143 def upload(request):
 144     if request.method == "POST":
 145         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 146         if form.is_valid():
 147             from slugify import slugify
 148
 149             if request.user.is_authenticated():
 150                 creator = request.user
 151             else:
 152                 creator = None
 153
 154             zip = form.cleaned_data['zip']
 155             skipped_list = []
 156             ok_list = []
 157             error_list = []
 158             slugs = {}
 159             existing = [book.slug for book in Book.objects.all()]
 160             for filename in zip.namelist():
 161                 if filename[-1] == '/':
 162                     continue
 163                 title = os.path.basename(filename)[:-4]
 164                 slug = slugify(title)
 165                 if not (slug and filename.endswith('.xml')):
 166                     skipped_list.append(filename)
 167                 elif slug in slugs:
 168                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 169                 elif slug in existing:
 170                     error_list.append((filename, slug, _('Slug already used in repository.')))
 171                 else:
 172                     try:
 173                         zip.read(filename).decode('utf-8') # test read
 174                         ok_list.append((filename, slug, title))
 175                     except UnicodeDecodeError:
 176                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 177                     slugs[slug] = filename
 178
 179             if not error_list:
 180                 for filename, slug, title in ok_list:
 181                     book = Book.create(
 182                         text=zip.read(filename).decode('utf-8'),
 183                         creator=creator,
 184                         slug=slug,
 185                         title=title,
 186                     )
 187
 188             return render(request, "catalogue/document_upload.html", {
 189                 "form": form,
 190                 "ok_list": ok_list,
 191                 "skipped_list": skipped_list,
 192                 "error_list": error_list,
 193
 194                 "logout_to": '/',
 195             })
 196     else:
 197         form = forms.DocumentsUploadForm()
 198
 199     return render(request, "catalogue/document_upload.html", {
 200         "form": form,
 201
 202         "logout_to": '/',
 203     })
 204
 205
 206 @never_cache
 207 def book_xml(request, slug):
 208     book = get_object_or_404(Book, slug=slug)
 209     if not book.accessible(request):
 210         return HttpResponseForbidden("Not authorized.")
 211     xml = book.materialize()
 212
 213     response = http.HttpResponse(xml, content_type='application/xml')
 214     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 215     return response
 216
 217
 218 @never_cache
 219 def book_txt(request, slug):
 220     book = get_object_or_404(Book, slug=slug)
 221     if not book.accessible(request):
 222         return HttpResponseForbidden("Not authorized.")
 223
 224     doc = book.wldocument()
 225     text = doc.as_text().get_string()
 226     response = http.HttpResponse(text, content_type='text/plain')
 227     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 228     return response
 229
 230
 231 @never_cache
 232 def book_html(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(parse_dublincore=False)
 238     html = doc.as_html()
 239
 240     html = html.get_string() if html is not None else ''
 241     # response = http.HttpResponse(html, content_type='text/html')
 242     # return response
 243     # book_themes = {}
 244     # for fragment in book.fragments.all().iterator():
 245     #     for theme in fragment.tags.filter(category='theme').iterator():
 246     #         book_themes.setdefault(theme, []).append(fragment)
 247
 248     # book_themes = book_themes.items()
 249     # book_themes.sort(key=lambda s: s[0].sort_key)
 250     return render(request, 'catalogue/book_text.html', locals())
 251
 252
 253 @never_cache
 254 def book_pdf(request, slug):
 255     book = get_object_or_404(Book, slug=slug)
 256     if not book.accessible(request):
 257         return HttpResponseForbidden("Not authorized.")
 258
 259     # TODO: move to celery
 260     doc = book.wldocument()
 261     # TODO: error handling
 262     pdf_file = doc.as_pdf(cover=True, ilustr_path=os.path.join(settings.MEDIA_ROOT, settings.IMAGE_DIR, book.gallery))
 263     from catalogue.ebook_utils import serve_file
 264     return serve_file(pdf_file.get_filename(),
 265                 book.slug + '.pdf', 'application/pdf')
 266
 267
 268 @never_cache
 269 def book_epub(request, slug):
 270     book = get_object_or_404(Book, slug=slug)
 271     if not book.accessible(request):
 272         return HttpResponseForbidden("Not authorized.")
 273
 274     # TODO: move to celery
 275     doc = book.wldocument()
 276     # TODO: error handling
 277     epub = doc.as_epub().get_string()
 278     response = HttpResponse(content_type='application/epub+zip')
 279     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 280     response.write(epub)
 281     return response
 282
 283
 284 @never_cache
 285 def revision(request, slug, chunk=None):
 286     try:
 287         doc = Chunk.get(slug, chunk)
 288     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 289         raise Http404
 290     if not doc.book.accessible(request):
 291         return HttpResponseForbidden("Not authorized.")
 292     return http.HttpResponse(str(doc.revision()))
 293
 294
 295 def book(request, slug):
 296     book = get_object_or_404(Book, slug=slug)
 297     if not book.accessible(request):
 298         return HttpResponseForbidden("Not authorized.")
 299
 300     if request.user.has_perm('catalogue.change_book'):
 301         if request.method == "POST":
 302             form = forms.BookForm(request.POST, instance=book)
 303             if form.is_valid():
 304                 form.save()
 305                 return http.HttpResponseRedirect(book.get_absolute_url())
 306         else:
 307             form = forms.BookForm(instance=book)
 308         editable = True
 309     else:
 310         form = forms.ReadonlyBookForm(instance=book)
 311         editable = False
 312
 313     publish_error = book.publishable_error()
 314     publishable = publish_error is None
 315
 316     return render(request, "catalogue/book_detail.html", {
 317         "book": book,
 318         "publishable": publishable,
 319         "publishable_error": publish_error,
 320         "form": form,
 321         "editable": editable,
 322     })
 323
 324
 325 def image(request, slug):
 326     image = get_object_or_404(Image, slug=slug)
 327     if not image.accessible(request):
 328         return HttpResponseForbidden("Not authorized.")
 329
 330     if request.user.has_perm('catalogue.change_image'):
 331         if request.method == "POST":
 332             form = forms.ImageForm(request.POST, instance=image)
 333             if form.is_valid():
 334                 form.save()
 335                 return http.HttpResponseRedirect(image.get_absolute_url())
 336         else:
 337             form = forms.ImageForm(instance=image)
 338         editable = True
 339     else:
 340         form = forms.ReadonlyImageForm(instance=image)
 341         editable = False
 342
 343     publish_error = image.publishable_error()
 344     publishable = publish_error is None
 345
 346     return render(request, "catalogue/image_detail.html", {
 347         "object": image,
 348         "publishable": publishable,
 349         "publishable_error": publish_error,
 350         "form": form,
 351         "editable": editable,
 352     })
 353
 354
 355 @permission_required('catalogue.add_chunk')
 356 def chunk_add(request, slug, chunk):
 357     try:
 358         doc = Chunk.get(slug, chunk)
 359     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 360         raise Http404
 361     if not doc.book.accessible(request):
 362         return HttpResponseForbidden("Not authorized.")
 363
 364     if request.method == "POST":
 365         form = forms.ChunkAddForm(request.POST, instance=doc)
 366         if form.is_valid():
 367             if request.user.is_authenticated():
 368                 creator = request.user
 369             else:
 370                 creator = None
 371             doc.split(creator=creator,
 372                 slug=form.cleaned_data['slug'],
 373                 title=form.cleaned_data['title'],
 374                 gallery_start=form.cleaned_data['gallery_start'],
 375                 user=form.cleaned_data['user'],
 376                 stage=form.cleaned_data['stage']
 377             )
 378
 379             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 380     else:
 381         form = forms.ChunkAddForm(initial={
 382                 "slug": str(doc.number + 1),
 383                 "title": "cz. %d" % (doc.number + 1, ),
 384         })
 385
 386     return render(request, "catalogue/chunk_add.html", {
 387         "chunk": doc,
 388         "form": form,
 389     })
 390
 391
 392 @login_required
 393 def chunk_edit(request, slug, chunk):
 394     try:
 395         doc = Chunk.get(slug, chunk)
 396     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 397         raise Http404
 398     if not doc.book.accessible(request):
 399         return HttpResponseForbidden("Not authorized.")
 400
 401     if request.method == "POST":
 402         form = forms.ChunkForm(request.POST, instance=doc)
 403         if form.is_valid():
 404             form.save()
 405             go_next = request.GET.get('next', None)
 406             if go_next:
 407                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 408             else:
 409                 go_next = doc.book.get_absolute_url()
 410             return http.HttpResponseRedirect(go_next)
 411     else:
 412         form = forms.ChunkForm(instance=doc)
 413
 414     referer = request.META.get('HTTP_REFERER')
 415     if referer:
 416         parts = urlsplit(referer)
 417         parts = ['', ''] + list(parts[2:])
 418         go_next = urlquote_plus(urlunsplit(parts))
 419     else:
 420         go_next = ''
 421
 422     return render(request, "catalogue/chunk_edit.html", {
 423         "chunk": doc,
 424         "form": form,
 425         "go_next": go_next,
 426     })
 427
 428
 429 @transaction.atomic
 430 @login_required
 431 @require_POST
 432 def chunk_mass_edit(request):
 433     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 434     chunks = map(lambda i: Chunk.objects.get(id=i), ids)
 435
 436     stage = request.POST.get('stage')
 437     if stage:
 438         try:
 439             stage = Chunk.tag_model.objects.get(slug=stage)
 440         except Chunk.DoesNotExist, e:
 441             stage = None
 442
 443         for c in chunks: c.stage = stage
 444
 445     username = request.POST.get('user')
 446     logger.info("username: %s" % username)
 447     logger.info(request.POST)
 448     if username:
 449         try:
 450             user = User.objects.get(username=username)
 451         except User.DoesNotExist, e:
 452             user = None
 453
 454         for c in chunks: c.user = user
 455
 456     project_id = request.POST.get('project')
 457     if project_id:
 458         try:
 459             project = Project.objects.get(pk=int(project_id))
 460         except (Project.DoesNotExist, ValueError), e:
 461             project = None
 462         for c in chunks:
 463             book = c.book
 464             book.project = project
 465             book.save()
 466
 467     for c in chunks: c.save()
 468
 469     return HttpResponse("", content_type="text/plain")
 470
 471
 472 @transaction.atomic
 473 @login_required
 474 @require_POST
 475 def image_mass_edit(request):
 476     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 477     images = map(lambda i: Image.objects.get(id=i), ids)
 478
 479     stage = request.POST.get('stage')
 480     if stage:
 481         try:
 482             stage = Image.tag_model.objects.get(slug=stage)
 483         except Image.DoesNotExist, e:
 484             stage = None
 485
 486         for c in images: c.stage = stage
 487
 488     username = request.POST.get('user')
 489     logger.info("username: %s" % username)
 490     logger.info(request.POST)
 491     if username:
 492         try:
 493             user = User.objects.get(username=username)
 494         except User.DoesNotExist, e:
 495             user = None
 496
 497         for c in images: c.user = user
 498
 499     project_id = request.POST.get('project')
 500     if project_id:
 501         try:
 502             project = Project.objects.get(pk=int(project_id))
 503         except (Project.DoesNotExist, ValueError), e:
 504             project = None
 505         for c in images:
 506             c.project = project
 507
 508     for c in images: c.save()
 509
 510     return HttpResponse("", content_type="text/plain")
 511
 512
 513 @permission_required('catalogue.change_book')
 514 def book_append(request, slug):
 515     book = get_object_or_404(Book, slug=slug)
 516     if not book.accessible(request):
 517         return HttpResponseForbidden("Not authorized.")
 518
 519     if request.method == "POST":
 520         form = forms.BookAppendForm(book, request.POST)
 521         if form.is_valid():
 522             append_to = form.cleaned_data['append_to']
 523             append_to.append(book)
 524             return http.HttpResponseRedirect(append_to.get_absolute_url())
 525     else:
 526         form = forms.BookAppendForm(book)
 527     return render(request, "catalogue/book_append_to.html", {
 528         "book": book,
 529         "form": form,
 530
 531         "logout_to": '/',
 532     })
 533
 534
 535 @require_POST
 536 @login_required
 537 def publish(request, slug):
 538     book = get_object_or_404(Book, slug=slug)
 539     if not book.accessible(request):
 540         return HttpResponseForbidden("Not authorized.")
 541
 542     try:
 543         book.publish(request.user)
 544     except NotAuthorizedError:
 545         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 546     except BaseException, e:
 547         return http.HttpResponse(e)
 548     else:
 549         return http.HttpResponseRedirect(book.get_absolute_url())
 550
 551
 552 @require_POST
 553 @login_required
 554 def publish_image(request, slug):
 555     image = get_object_or_404(Image, slug=slug)
 556     if not image.accessible(request):
 557         return HttpResponseForbidden("Not authorized.")
 558
 559     try:
 560         image.publish(request.user)
 561     except NotAuthorizedError:
 562         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 563     except BaseException, e:
 564         return http.HttpResponse(e)
 565     else:
 566         return http.HttpResponseRedirect(image.get_absolute_url())
 567
 568
 569 class GalleryView(UploadView):
 570     def get_object(self, request, slug):
 571         book = get_object_or_404(Book, slug=slug)
 572         if not book.gallery:
 573             raise Http404
 574         return book
 575
 576     def breadcrumbs(self):
 577         return [
 578             (_('books'), reverse('catalogue_document_list')),
 579             (self.object.title, self.object.get_absolute_url()),
 580             (_('scan gallery'),),
 581         ]
 582
 583     def get_directory(self):
 584         return "%s%s/" % (settings.IMAGE_DIR, self.object.gallery)