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.contrib import auth
   9 from django.contrib.auth.models import User
  10 from django.contrib.auth.decorators import login_required, permission_required
  11 from django.core.urlresolvers import reverse
  12 from django.db.models import Count, Q
  13 from django.db import transaction
  14 from django import http
  15 from django.http import Http404, HttpResponse, HttpResponseForbidden
  16 from django.shortcuts import get_object_or_404, render, render_to_response
  17 from django.utils.encoding import iri_to_uri
  18 from django.utils.http import urlquote_plus
  19 from django.utils.translation import ugettext_lazy as _
  20 from django.views.decorators.http import require_POST
  21 from django.views.generic.simple import direct_to_template
  22 from django.template import RequestContext
  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, BookPublishRecord, ChunkPublishRecord
  29 from catalogue.tasks import publishable_error
  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 @never_cache
  46 def user(request, username):
  47     user = get_object_or_404(User, username=username)
  48     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
  49
  50
  51 @login_required
  52 @active_tab('my')
  53 @never_cache
  54 def my(request):
  55     return render(request, 'catalogue/my_page.html', {
  56         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
  57                         key=lambda x: x[1]['time'], reverse=True),
  58
  59         "logout_to": '/',
  60         })
  61
  62
  63 @active_tab('users')
  64 def users(request):
  65     return direct_to_template(request, 'catalogue/user_list.html', extra_context={
  66         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  67             '-count', 'last_name', 'first_name'),
  68     })
  69
  70
  71 @active_tab('activity')
  72 def activity(request, isodate=None):
  73     today = date.today()
  74     try:
  75         day = helpers.parse_isodate(isodate)
  76     except ValueError:
  77         day = today
  78
  79     if day > today:
  80         raise Http404
  81     if day != today:
  82         next_day = day + timedelta(1)
  83     prev_day = day - timedelta(1)
  84
  85     return render(request, 'catalogue/activity.html', locals())
  86
  87
  88 @never_cache
  89 def logout_then_redirect(request):
  90     auth.logout(request)
  91     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  92
  93
  94 @permission_required('catalogue.add_book')
  95 @active_tab('create')
  96 def create_missing(request, slug=None):
  97     if slug is None:
  98         slug = ''
  99     slug = slug.replace(' ', '-')
 100
 101     if request.method == "POST":
 102         form = forms.DocumentCreateForm(request.POST, request.FILES)
 103         if form.is_valid():
 104
 105             if request.user.is_authenticated():
 106                 creator = request.user
 107             else:
 108                 creator = None
 109             book = Book.create(
 110                 text=form.cleaned_data['text'],
 111                 creator=creator,
 112                 slug=form.cleaned_data['slug'],
 113                 title=form.cleaned_data['title'],
 114                 gallery=form.cleaned_data['gallery'],
 115             )
 116
 117             return http.HttpResponseRedirect(reverse("catalogue_book", args=[book.slug]))
 118     else:
 119         form = forms.DocumentCreateForm(initial={
 120                 "slug": slug,
 121                 "title": slug.replace('-', ' ').title(),
 122                 "gallery": slug,
 123         })
 124
 125     return direct_to_template(request, "catalogue/document_create_missing.html", extra_context={
 126         "slug": slug,
 127         "form": form,
 128
 129         "logout_to": '/',
 130     })
 131
 132
 133 @permission_required('catalogue.add_book')
 134 @active_tab('upload')
 135 def upload(request):
 136     if request.method == "POST":
 137         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 138         if form.is_valid():
 139             import slughifi
 140
 141             if request.user.is_authenticated():
 142                 creator = request.user
 143             else:
 144                 creator = None
 145
 146             zip = form.cleaned_data['zip']
 147             skipped_list = []
 148             ok_list = []
 149             error_list = []
 150             slugs = {}
 151             existing = [book.slug for book in Book.objects.all()]
 152             for filename in zip.namelist():
 153                 if filename[-1] == '/':
 154                     continue
 155                 title = os.path.basename(filename)[:-4]
 156                 slug = slughifi(title)
 157                 if not (slug and filename.endswith('.xml')):
 158                     skipped_list.append(filename)
 159                 elif slug in slugs:
 160                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 161                 elif slug in existing:
 162                     error_list.append((filename, slug, _('Slug already used in repository.')))
 163                 else:
 164                     try:
 165                         zip.read(filename).decode('utf-8') # test read
 166                         ok_list.append((filename, slug, title))
 167                     except UnicodeDecodeError:
 168                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 169                     slugs[slug] = filename
 170
 171             if not error_list:
 172                 for filename, slug, title in ok_list:
 173                     book = Book.create(
 174                         text=zip.read(filename).decode('utf-8'),
 175                         creator=creator,
 176                         slug=slug,
 177                         title=title,
 178                     )
 179
 180             return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 181                 "form": form,
 182                 "ok_list": ok_list,
 183                 "skipped_list": skipped_list,
 184                 "error_list": error_list,
 185
 186                 "logout_to": '/',
 187             })
 188     else:
 189         form = forms.DocumentsUploadForm()
 190
 191     return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 192         "form": form,
 193
 194         "logout_to": '/',
 195     })
 196
 197
 198 @never_cache
 199 def book_xml(request, slug):
 200     book = get_object_or_404(Book, slug=slug)
 201     if not book.accessible(request):
 202         return HttpResponseForbidden("Not authorized.")
 203     xml = book.materialize()
 204
 205     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
 206     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 207     return response
 208
 209
 210 @never_cache
 211 def book_txt(request, slug):
 212     book = get_object_or_404(Book, slug=slug)
 213     if not book.accessible(request):
 214         return HttpResponseForbidden("Not authorized.")
 215
 216     doc = book.wldocument()
 217     text = doc.as_text().get_string()
 218     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
 219     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 220     return response
 221
 222
 223 @never_cache
 224 def book_html(request, slug):
 225     book = get_object_or_404(Book, slug=slug)
 226     if not book.accessible(request):
 227         return HttpResponseForbidden("Not authorized.")
 228
 229     doc = book.wldocument(parse_dublincore=False)
 230     html = doc.as_html()
 231
 232     html = html.get_string() if html is not None else ''
 233     # response = http.HttpResponse(html, content_type='text/html', mimetype='text/html')
 234     # return response
 235     # book_themes = {}
 236     # for fragment in book.fragments.all().iterator():
 237     #     for theme in fragment.tags.filter(category='theme').iterator():
 238     #         book_themes.setdefault(theme, []).append(fragment)
 239
 240     # book_themes = book_themes.items()
 241     # book_themes.sort(key=lambda s: s[0].sort_key)
 242     return render_to_response('catalogue/book_text.html', locals(),
 243         context_instance=RequestContext(request))
 244
 245
 246 @never_cache
 247 def book_pdf(request, slug):
 248     book = get_object_or_404(Book, slug=slug)
 249     if not book.accessible(request):
 250         return HttpResponseForbidden("Not authorized.")
 251
 252     # TODO: move to celery
 253     doc = book.wldocument()
 254     # TODO: error handling
 255     pdf_file = doc.as_pdf()
 256     from catalogue.ebook_utils import serve_file
 257     return serve_file(pdf_file.get_filename(),
 258                 book.slug + '.pdf', 'application/pdf')
 259
 260
 261 @never_cache
 262 def book_epub(request, slug):
 263     book = get_object_or_404(Book, slug=slug)
 264     if not book.accessible(request):
 265         return HttpResponseForbidden("Not authorized.")
 266
 267     # TODO: move to celery
 268     doc = book.wldocument()
 269     # TODO: error handling
 270     epub = doc.as_epub().get_string()
 271     response = HttpResponse(mimetype='application/epub+zip')
 272     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 273     response.write(epub)
 274     return response
 275
 276
 277 @never_cache
 278 def revision(request, slug, chunk=None):
 279     try:
 280         doc = Chunk.get(slug, chunk)
 281     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 282         raise Http404
 283     if not doc.book.accessible(request):
 284         return HttpResponseForbidden("Not authorized.")
 285     return http.HttpResponse(str(doc.revision()))
 286
 287
 288 def book(request, slug):
 289     book = get_object_or_404(Book, slug=slug)
 290     if not book.accessible(request):
 291         return HttpResponseForbidden("Not authorized.")
 292
 293     if request.user.has_perm('catalogue.change_book'):
 294         if request.method == "POST":
 295             form = forms.BookForm(request.POST, instance=book)
 296             if form.is_valid():
 297                 form.save()
 298                 return http.HttpResponseRedirect(book.get_absolute_url())
 299         else:
 300             form = forms.BookForm(instance=book)
 301         editable = True
 302     else:
 303         form = forms.ReadonlyBookForm(instance=book)
 304         editable = False
 305
 306     publish_error = publishable_error(book)
 307     publishable = publish_error is None
 308
 309     return direct_to_template(request, "catalogue/book_detail.html", extra_context={
 310         "book": book,
 311         "publishable": publishable,
 312         "publishable_error": publish_error,
 313         "form": form,
 314         "editable": editable,
 315     })
 316
 317
 318 @permission_required('catalogue.add_chunk')
 319 def chunk_add(request, slug, chunk):
 320     try:
 321         doc = Chunk.get(slug, chunk)
 322     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 323         raise Http404
 324     if not doc.book.accessible(request):
 325         return HttpResponseForbidden("Not authorized.")
 326
 327     if request.method == "POST":
 328         form = forms.ChunkAddForm(request.POST, instance=doc)
 329         if form.is_valid():
 330             if request.user.is_authenticated():
 331                 creator = request.user
 332             else:
 333                 creator = None
 334             doc.split(creator=creator,
 335                 slug=form.cleaned_data['slug'],
 336                 title=form.cleaned_data['title'],
 337                 gallery_start=form.cleaned_data['gallery_start'],
 338                 user=form.cleaned_data['user'],
 339                 stage=form.cleaned_data['stage']
 340             )
 341
 342             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 343     else:
 344         form = forms.ChunkAddForm(initial={
 345                 "slug": str(doc.number + 1),
 346                 "title": "cz. %d" % (doc.number + 1, ),
 347         })
 348
 349     return direct_to_template(request, "catalogue/chunk_add.html", extra_context={
 350         "chunk": doc,
 351         "form": form,
 352     })
 353
 354
 355 def chunk_edit(request, slug, chunk):
 356     try:
 357         doc = Chunk.get(slug, chunk)
 358     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 359         raise Http404
 360     if not doc.book.accessible(request):
 361         return HttpResponseForbidden("Not authorized.")
 362
 363     if request.method == "POST":
 364         form = forms.ChunkForm(request.POST, instance=doc)
 365         if form.is_valid():
 366             form.save()
 367             go_next = request.GET.get('next', None)
 368             if go_next:
 369                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 370             else:
 371                 go_next = doc.book.get_absolute_url()
 372             return http.HttpResponseRedirect(go_next)
 373     else:
 374         form = forms.ChunkForm(instance=doc)
 375
 376     referer = request.META.get('HTTP_REFERER')
 377     if referer:
 378         parts = urlsplit(referer)
 379         parts = ['', ''] + list(parts[2:])
 380         go_next = urlquote_plus(urlunsplit(parts))
 381     else:
 382         go_next = ''
 383
 384     return direct_to_template(request, "catalogue/chunk_edit.html", extra_context={
 385         "chunk": doc,
 386         "form": form,
 387         "go_next": go_next,
 388     })
 389
 390
 391 @transaction.commit_on_success
 392 def chunk_mass_edit(request):
 393     if request.method == 'POST':
 394         ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 395         chunks = map(lambda i: Chunk.objects.get(id=i), ids)
 396
 397         stage = request.POST.get('stage')
 398         if stage:
 399             try:
 400                 stage = Chunk.tag_model.objects.get(slug=stage)
 401             except Chunk.DoesNotExist, e:
 402                 stage = None
 403
 404             for c in chunks: c.stage = stage
 405
 406         username = request.POST.get('user')
 407         logger.info("username: %s" % username)
 408         logger.info(request.POST)
 409         if username:
 410             try:
 411                 user = User.objects.get(username=username)
 412             except User.DoesNotExist, e:
 413                 user = None
 414
 415             for c in chunks: c.user = user
 416
 417         status = request.POST.get('status')
 418         if status:
 419             books_affected = set()
 420             for c in chunks:
 421                 if status == 'publish':
 422                     c.head.publishable = True
 423                     c.head.save()
 424                 elif status == 'unpublish':
 425                     c.head.publishable = False
 426                     c.head.save()
 427                 c.touch()  # cache
 428                 books_affected.add(c.book)
 429             for b in books_affected:
 430                 b.touch()  # cache
 431
 432         for c in chunks: c.save()
 433
 434         return HttpResponse("", content_type="text/plain")
 435     else:
 436         raise Http404
 437
 438
 439 @permission_required('catalogue.change_book')
 440 def book_append(request, slug):
 441     book = get_object_or_404(Book, slug=slug)
 442     if not book.accessible(request):
 443         return HttpResponseForbidden("Not authorized.")
 444
 445     if request.method == "POST":
 446         form = forms.BookAppendForm(book, request.POST)
 447         if form.is_valid():
 448             append_to = form.cleaned_data['append_to']
 449             append_to.append(book)
 450             return http.HttpResponseRedirect(append_to.get_absolute_url())
 451     else:
 452         form = forms.BookAppendForm(book)
 453     return direct_to_template(request, "catalogue/book_append_to.html", extra_context={
 454         "book": book,
 455         "form": form,
 456
 457         "logout_to": '/',
 458     })
 459
 460
 461 @require_POST
 462 @login_required
 463 def publish(request, slug):
 464     book = get_object_or_404(Book, slug=slug)
 465     if not book.accessible(request):
 466         return HttpResponseForbidden("Not authorized.")
 467
 468     try:
 469         book.publish(request.user)
 470     except NotAuthorizedError:
 471         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 472     except BaseException, e:
 473         return http.HttpResponse(e)
 474     else:
 475         return http.HttpResponseRedirect(book.get_absolute_url())