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     return render(request, 'catalogue/my_page.html', {
  62         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
  63                         key=lambda x: x[1]['time'], reverse=True),
  64
  65         "logout_to": '/',
  66         })
  67
  68
  69 @active_tab('users')
  70 def users(request):
  71     return render(request, 'catalogue/user_list.html', {
  72         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  73             '-count', 'last_name', 'first_name'),
  74     })
  75
  76
  77 @active_tab('activity')
  78 def activity(request, isodate=None):
  79     today = date.today()
  80     try:
  81         day = helpers.parse_isodate(isodate)
  82     except ValueError:
  83         day = today
  84
  85     if day > today:
  86         raise Http404
  87     if day != today:
  88         next_day = day + timedelta(1)
  89     prev_day = day - timedelta(1)
  90
  91     return render(request, 'catalogue/activity.html', locals())
  92
  93
  94 @never_cache
  95 def logout_then_redirect(request):
  96     auth.logout(request)
  97     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  98
  99
 100 @permission_required('catalogue.add_book')
 101 @active_tab('create')
 102 def create_missing(request, slug=None):
 103     if slug is None:
 104         slug = ''
 105     slug = slug.replace(' ', '-')
 106
 107     if request.method == "POST":
 108         form = forms.DocumentCreateForm(request.POST, request.FILES)
 109         if form.is_valid():
 110
 111             if request.user.is_authenticated():
 112                 creator = request.user
 113             else:
 114                 creator = None
 115             book = Book.create(
 116                 text=form.cleaned_data['text'],
 117                 creator=creator,
 118                 slug=form.cleaned_data['slug'],
 119                 title=form.cleaned_data['title'],
 120                 gallery=form.cleaned_data['gallery'],
 121             )
 122
 123             return http.HttpResponseRedirect(reverse("catalogue_book", args=[book.slug]))
 124     else:
 125         form = forms.DocumentCreateForm(initial={
 126                 "slug": slug,
 127                 "title": slug.replace('-', ' ').title(),
 128                 "gallery": slug,
 129         })
 130
 131     return render(request, "catalogue/document_create_missing.html", {
 132         "slug": slug,
 133         "form": form,
 134
 135         "logout_to": '/',
 136     })
 137
 138
 139 @permission_required('catalogue.add_book')
 140 @active_tab('upload')
 141 def upload(request):
 142     if request.method == "POST":
 143         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 144         if form.is_valid():
 145             import slughifi
 146
 147             if request.user.is_authenticated():
 148                 creator = request.user
 149             else:
 150                 creator = None
 151
 152             zip = form.cleaned_data['zip']
 153             skipped_list = []
 154             ok_list = []
 155             error_list = []
 156             slugs = {}
 157             existing = [book.slug for book in Book.objects.all()]
 158             for filename in zip.namelist():
 159                 if filename[-1] == '/':
 160                     continue
 161                 title = os.path.basename(filename)[:-4]
 162                 slug = slughifi(title)
 163                 if not (slug and filename.endswith('.xml')):
 164                     skipped_list.append(filename)
 165                 elif slug in slugs:
 166                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 167                 elif slug in existing:
 168                     error_list.append((filename, slug, _('Slug already used in repository.')))
 169                 else:
 170                     try:
 171                         zip.read(filename).decode('utf-8') # test read
 172                         ok_list.append((filename, slug, title))
 173                     except UnicodeDecodeError:
 174                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 175                     slugs[slug] = filename
 176
 177             if not error_list:
 178                 for filename, slug, title in ok_list:
 179                     book = Book.create(
 180                         text=zip.read(filename).decode('utf-8'),
 181                         creator=creator,
 182                         slug=slug,
 183                         title=title,
 184                     )
 185
 186             return render(request, "catalogue/document_upload.html", {
 187                 "form": form,
 188                 "ok_list": ok_list,
 189                 "skipped_list": skipped_list,
 190                 "error_list": error_list,
 191
 192                 "logout_to": '/',
 193             })
 194     else:
 195         form = forms.DocumentsUploadForm()
 196
 197     return render(request, "catalogue/document_upload.html", {
 198         "form": form,
 199
 200         "logout_to": '/',
 201     })
 202
 203
 204 @never_cache
 205 def book_xml(request, slug):
 206     book = get_object_or_404(Book, slug=slug)
 207     if not book.accessible(request):
 208         return HttpResponseForbidden("Not authorized.")
 209     xml = book.materialize()
 210
 211     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
 212     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 213     return response
 214
 215
 216 @never_cache
 217 def book_txt(request, slug):
 218     book = get_object_or_404(Book, slug=slug)
 219     if not book.accessible(request):
 220         return HttpResponseForbidden("Not authorized.")
 221
 222     doc = book.wldocument()
 223     text = doc.as_text().get_string()
 224     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
 225     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 226     return response
 227
 228
 229 @never_cache
 230 def book_html(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(parse_dublincore=False)
 236     html = doc.as_html()
 237
 238     html = html.get_string() if html is not None else ''
 239     # response = http.HttpResponse(html, content_type='text/html', mimetype='text/html')
 240     # return response
 241     # book_themes = {}
 242     # for fragment in book.fragments.all().iterator():
 243     #     for theme in fragment.tags.filter(category='theme').iterator():
 244     #         book_themes.setdefault(theme, []).append(fragment)
 245
 246     # book_themes = book_themes.items()
 247     # book_themes.sort(key=lambda s: s[0].sort_key)
 248     return render(request, 'catalogue/book_text.html', locals())
 249
 250
 251 @never_cache
 252 def book_pdf(request, slug):
 253     book = get_object_or_404(Book, slug=slug)
 254     if not book.accessible(request):
 255         return HttpResponseForbidden("Not authorized.")
 256
 257     # TODO: move to celery
 258     doc = book.wldocument()
 259     # TODO: error handling
 260     pdf_file = doc.as_pdf()
 261     from catalogue.ebook_utils import serve_file
 262     return serve_file(pdf_file.get_filename(),
 263                 book.slug + '.pdf', 'application/pdf')
 264
 265
 266 @never_cache
 267 def book_epub(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     epub = doc.as_epub().get_string()
 276     response = HttpResponse(mimetype='application/epub+zip')
 277     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 278     response.write(epub)
 279     return response
 280
 281
 282 @never_cache
 283 def revision(request, slug, chunk=None):
 284     try:
 285         doc = Chunk.get(slug, chunk)
 286     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 287         raise Http404
 288     if not doc.book.accessible(request):
 289         return HttpResponseForbidden("Not authorized.")
 290     return http.HttpResponse(str(doc.revision()))
 291
 292
 293 def book(request, slug):
 294     book = get_object_or_404(Book, slug=slug)
 295     if not book.accessible(request):
 296         return HttpResponseForbidden("Not authorized.")
 297
 298     if request.user.has_perm('catalogue.change_book'):
 299         if request.method == "POST":
 300             form = forms.BookForm(request.POST, instance=book)
 301             if form.is_valid():
 302                 form.save()
 303                 return http.HttpResponseRedirect(book.get_absolute_url())
 304         else:
 305             form = forms.BookForm(instance=book)
 306         editable = True
 307     else:
 308         form = forms.ReadonlyBookForm(instance=book)
 309         editable = False
 310
 311     publish_error = book.publishable_error()
 312     publishable = publish_error is None
 313
 314     return render(request, "catalogue/book_detail.html", {
 315         "book": book,
 316         "publishable": publishable,
 317         "publishable_error": publish_error,
 318         "form": form,
 319         "editable": editable,
 320     })
 321
 322
 323 def image(request, slug):
 324     image = get_object_or_404(Image, slug=slug)
 325     if not image.accessible(request):
 326         return HttpResponseForbidden("Not authorized.")
 327
 328     if request.user.has_perm('catalogue.change_image'):
 329         if request.method == "POST":
 330             form = forms.ImageForm(request.POST, instance=image)
 331             if form.is_valid():
 332                 form.save()
 333                 return http.HttpResponseRedirect(image.get_absolute_url())
 334         else:
 335             form = forms.ImageForm(instance=image)
 336         editable = True
 337     else:
 338         form = forms.ReadonlyImageForm(instance=image)
 339         editable = False
 340
 341     publish_error = image.publishable_error()
 342     publishable = publish_error is None
 343
 344     return render(request, "catalogue/image_detail.html", {
 345         "object": image,
 346         "publishable": publishable,
 347         "publishable_error": publish_error,
 348         "form": form,
 349         "editable": editable,
 350     })
 351
 352
 353 @permission_required('catalogue.add_chunk')
 354 def chunk_add(request, slug, chunk):
 355     try:
 356         doc = Chunk.get(slug, chunk)
 357     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 358         raise Http404
 359     if not doc.book.accessible(request):
 360         return HttpResponseForbidden("Not authorized.")
 361
 362     if request.method == "POST":
 363         form = forms.ChunkAddForm(request.POST, instance=doc)
 364         if form.is_valid():
 365             if request.user.is_authenticated():
 366                 creator = request.user
 367             else:
 368                 creator = None
 369             doc.split(creator=creator,
 370                 slug=form.cleaned_data['slug'],
 371                 title=form.cleaned_data['title'],
 372                 gallery_start=form.cleaned_data['gallery_start'],
 373                 user=form.cleaned_data['user'],
 374                 stage=form.cleaned_data['stage']
 375             )
 376
 377             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 378     else:
 379         form = forms.ChunkAddForm(initial={
 380                 "slug": str(doc.number + 1),
 381                 "title": "cz. %d" % (doc.number + 1, ),
 382         })
 383
 384     return render(request, "catalogue/chunk_add.html", {
 385         "chunk": doc,
 386         "form": form,
 387     })
 388
 389
 390 @login_required
 391 def chunk_edit(request, slug, chunk):
 392     try:
 393         doc = Chunk.get(slug, chunk)
 394     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 395         raise Http404
 396     if not doc.book.accessible(request):
 397         return HttpResponseForbidden("Not authorized.")
 398
 399     if request.method == "POST":
 400         form = forms.ChunkForm(request.POST, instance=doc)
 401         if form.is_valid():
 402             form.save()
 403             go_next = request.GET.get('next', None)
 404             if go_next:
 405                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 406             else:
 407                 go_next = doc.book.get_absolute_url()
 408             return http.HttpResponseRedirect(go_next)
 409     else:
 410         form = forms.ChunkForm(instance=doc)
 411
 412     referer = request.META.get('HTTP_REFERER')
 413     if referer:
 414         parts = urlsplit(referer)
 415         parts = ['', ''] + list(parts[2:])
 416         go_next = urlquote_plus(urlunsplit(parts))
 417     else:
 418         go_next = ''
 419
 420     return render(request, "catalogue/chunk_edit.html", {
 421         "chunk": doc,
 422         "form": form,
 423         "go_next": go_next,
 424     })
 425
 426
 427 @transaction.commit_on_success
 428 @login_required
 429 def chunk_mass_edit(request):
 430     if request.method == 'POST':
 431         ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 432         chunks = map(lambda i: Chunk.objects.get(id=i), ids)
 433
 434         stage = request.POST.get('stage')
 435         if stage:
 436             try:
 437                 stage = Chunk.tag_model.objects.get(slug=stage)
 438             except Chunk.DoesNotExist, e:
 439                 stage = None
 440
 441             for c in chunks: c.stage = stage
 442
 443         username = request.POST.get('user')
 444         logger.info("username: %s" % username)
 445         logger.info(request.POST)
 446         if username:
 447             try:
 448                 user = User.objects.get(username=username)
 449             except User.DoesNotExist, e:
 450                 user = None
 451
 452             for c in chunks: c.user = user
 453
 454         status = request.POST.get('status')
 455         if status:
 456             books_affected = set()
 457             for c in chunks:
 458                 if status == 'publish':
 459                     c.head.publishable = True
 460                     c.head.save()
 461                 elif status == 'unpublish':
 462                     c.head.publishable = False
 463                     c.head.save()
 464                 c.touch()  # cache
 465                 books_affected.add(c.book)
 466             for b in books_affected:
 467                 b.touch()  # cache
 468
 469         project_id = request.POST.get('project')
 470         if project_id:
 471             try:
 472                 project = Project.objects.get(pk=int(project_id))
 473             except (Project.DoesNotExist, ValueError), e:
 474                 project = None
 475             for c in chunks:
 476                 book = c.book
 477                 book.project = project
 478                 book.save()
 479
 480         for c in chunks: c.save()
 481
 482         return HttpResponse("", content_type="text/plain")
 483     else:
 484         raise Http404
 485
 486
 487 @permission_required('catalogue.change_book')
 488 def book_append(request, slug):
 489     book = get_object_or_404(Book, slug=slug)
 490     if not book.accessible(request):
 491         return HttpResponseForbidden("Not authorized.")
 492
 493     if request.method == "POST":
 494         form = forms.BookAppendForm(book, request.POST)
 495         if form.is_valid():
 496             append_to = form.cleaned_data['append_to']
 497             append_to.append(book)
 498             return http.HttpResponseRedirect(append_to.get_absolute_url())
 499     else:
 500         form = forms.BookAppendForm(book)
 501     return render(request, "catalogue/book_append_to.html", {
 502         "book": book,
 503         "form": form,
 504
 505         "logout_to": '/',
 506     })
 507
 508
 509 @require_POST
 510 @login_required
 511 def publish(request, slug):
 512     book = get_object_or_404(Book, slug=slug)
 513     if not book.accessible(request):
 514         return HttpResponseForbidden("Not authorized.")
 515
 516     try:
 517         book.publish(request.user)
 518     except NotAuthorizedError:
 519         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 520     except BaseException, e:
 521         return http.HttpResponse(e)
 522     else:
 523         return http.HttpResponseRedirect(book.get_absolute_url())
 524
 525
 526 @require_POST
 527 @login_required
 528 def publish_image(request, slug):
 529     image = get_object_or_404(Image, slug=slug)
 530     if not image.accessible(request):
 531         return HttpResponseForbidden("Not authorized.")
 532
 533     try:
 534         image.publish(request.user)
 535     except NotAuthorizedError:
 536         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 537     except BaseException, e:
 538         return http.HttpResponse(e)
 539     else:
 540         return http.HttpResponseRedirect(image.get_absolute_url())
 541
 542
 543 class GalleryView(UploadView):
 544     def get_object(self, request, slug):
 545         book = get_object_or_404(Book, slug=slug)
 546         if not book.gallery:
 547             raise Http404
 548         return book
 549
 550     def breadcrumbs(self):
 551         return [
 552             (_('books'), reverse('catalogue_document_list')),
 553             (self.object.title, self.object.get_absolute_url()),
 554             (_('scan gallery'),),
 555         ]
 556
 557     def get_directory(self):
 558         return "%s%s/" % (settings.IMAGE_DIR, self.object.gallery)