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 import http
  14 from django.http import Http404, HttpResponse, HttpResponseForbidden
  15 from django.shortcuts import get_object_or_404, render, render_to_response
  16 from django.utils.encoding import iri_to_uri
  17 from django.utils.http import urlquote_plus
  18 from django.utils.translation import ugettext_lazy as _
  19 from django.views.decorators.http import require_POST
  20 from django.views.generic.simple import direct_to_template
  21 from django.template import RequestContext
  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, BookPublishRecord, ChunkPublishRecord
  28 from catalogue.tasks import publishable_error
  29
  30 #
  31 # Quick hack around caching problems, TODO: use ETags
  32 #
  33 from django.views.decorators.cache import never_cache
  34
  35 logger = logging.getLogger("fnp.catalogue")
  36
  37
  38 @active_tab('all')
  39 @never_cache
  40 def document_list(request):
  41     return render(request, 'catalogue/document_list.html')
  42
  43
  44 @never_cache
  45 def user(request, username):
  46     user = get_object_or_404(User, username=username)
  47     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
  48
  49
  50 @login_required
  51 @active_tab('my')
  52 @never_cache
  53 def my(request):
  54     return render(request, 'catalogue/my_page.html', {
  55         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
  56                         key=lambda x: x[1]['time'], reverse=True),
  57
  58         "logout_to": '/',
  59         })
  60
  61
  62 @active_tab('users')
  63 def users(request):
  64     return direct_to_template(request, 'catalogue/user_list.html', extra_context={
  65         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  66             '-count', 'last_name', 'first_name'),
  67     })
  68
  69
  70 @active_tab('activity')
  71 def activity(request, isodate=None):
  72     today = date.today()
  73     try:
  74         day = helpers.parse_isodate(isodate)
  75     except ValueError:
  76         day = today
  77
  78     if day > today:
  79         raise Http404
  80     if day != today:
  81         next_day = day + timedelta(1)
  82     prev_day = day - timedelta(1)
  83
  84     return render(request, 'catalogue/activity.html', locals())
  85
  86
  87 @never_cache
  88 def logout_then_redirect(request):
  89     auth.logout(request)
  90     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  91
  92
  93 @permission_required('catalogue.add_book')
  94 @active_tab('create')
  95 def create_missing(request, slug=None):
  96     if slug is None:
  97         slug = ''
  98     slug = slug.replace(' ', '-')
  99
 100     if request.method == "POST":
 101         form = forms.DocumentCreateForm(request.POST, request.FILES)
 102         if form.is_valid():
 103
 104             if request.user.is_authenticated():
 105                 creator = request.user
 106             else:
 107                 creator = None
 108             book = Book.create(
 109                 text=form.cleaned_data['text'],
 110                 creator=creator,
 111                 slug=form.cleaned_data['slug'],
 112                 title=form.cleaned_data['title'],
 113                 gallery=form.cleaned_data['gallery'],
 114             )
 115
 116             return http.HttpResponseRedirect(reverse("catalogue_book", args=[book.slug]))
 117     else:
 118         form = forms.DocumentCreateForm(initial={
 119                 "slug": slug,
 120                 "title": slug.replace('-', ' ').title(),
 121                 "gallery": slug,
 122         })
 123
 124     return direct_to_template(request, "catalogue/document_create_missing.html", extra_context={
 125         "slug": slug,
 126         "form": form,
 127
 128         "logout_to": '/',
 129     })
 130
 131
 132 @permission_required('catalogue.add_book')
 133 @active_tab('upload')
 134 def upload(request):
 135     if request.method == "POST":
 136         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 137         if form.is_valid():
 138             import slughifi
 139
 140             if request.user.is_authenticated():
 141                 creator = request.user
 142             else:
 143                 creator = None
 144
 145             zip = form.cleaned_data['zip']
 146             skipped_list = []
 147             ok_list = []
 148             error_list = []
 149             slugs = {}
 150             existing = [book.slug for book in Book.objects.all()]
 151             for filename in zip.namelist():
 152                 if filename[-1] == '/':
 153                     continue
 154                 title = os.path.basename(filename)[:-4]
 155                 slug = slughifi(title)
 156                 if not (slug and filename.endswith('.xml')):
 157                     skipped_list.append(filename)
 158                 elif slug in slugs:
 159                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 160                 elif slug in existing:
 161                     error_list.append((filename, slug, _('Slug already used in repository.')))
 162                 else:
 163                     try:
 164                         zip.read(filename).decode('utf-8') # test read
 165                         ok_list.append((filename, slug, title))
 166                     except UnicodeDecodeError:
 167                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 168                     slugs[slug] = filename
 169
 170             if not error_list:
 171                 for filename, slug, title in ok_list:
 172                     book = Book.create(
 173                         text=zip.read(filename).decode('utf-8'),
 174                         creator=creator,
 175                         slug=slug,
 176                         title=title,
 177                     )
 178
 179             return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 180                 "form": form,
 181                 "ok_list": ok_list,
 182                 "skipped_list": skipped_list,
 183                 "error_list": error_list,
 184
 185                 "logout_to": '/',
 186             })
 187     else:
 188         form = forms.DocumentsUploadForm()
 189
 190     return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 191         "form": form,
 192
 193         "logout_to": '/',
 194     })
 195
 196
 197 @never_cache
 198 def book_xml(request, slug):
 199     book = get_object_or_404(Book, slug=slug)
 200     if not book.accessible(request):
 201         return HttpResponseForbidden("Not authorized.")
 202     xml = book.materialize()
 203
 204     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
 205     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 206     return response
 207
 208
 209 @never_cache
 210 def book_txt(request, slug):
 211     book = get_object_or_404(Book, slug=slug)
 212     if not book.accessible(request):
 213         return HttpResponseForbidden("Not authorized.")
 214
 215     doc = book.wldocument()
 216     text = doc.as_text().get_string()
 217     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
 218     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 219     return response
 220
 221
 222 @never_cache
 223 def book_html(request, slug):
 224     book = get_object_or_404(Book, slug=slug)
 225     if not book.accessible(request):
 226         return HttpResponseForbidden("Not authorized.")
 227
 228     doc = book.wldocument(parse_dublincore=False)
 229     html = doc.as_html()
 230
 231     html = html.get_string() if html is not None else ''
 232     # response = http.HttpResponse(html, content_type='text/html', mimetype='text/html')
 233     # return response
 234     # book_themes = {}
 235     # for fragment in book.fragments.all().iterator():
 236     #     for theme in fragment.tags.filter(category='theme').iterator():
 237     #         book_themes.setdefault(theme, []).append(fragment)
 238
 239     # book_themes = book_themes.items()
 240     # book_themes.sort(key=lambda s: s[0].sort_key)
 241     return render_to_response('catalogue/book_text.html', locals(),
 242         context_instance=RequestContext(request))
 243
 244
 245 @never_cache
 246 def book_pdf(request, slug):
 247     book = get_object_or_404(Book, slug=slug)
 248     if not book.accessible(request):
 249         return HttpResponseForbidden("Not authorized.")
 250
 251     # TODO: move to celery
 252     doc = book.wldocument()
 253     # TODO: error handling
 254     pdf_file = doc.as_pdf()
 255     from catalogue.ebook_utils import serve_file
 256     return serve_file(pdf_file.get_filename(),
 257                 book.slug + '.pdf', 'application/pdf')
 258
 259
 260 @never_cache
 261 def book_epub(request, slug):
 262     book = get_object_or_404(Book, slug=slug)
 263     if not book.accessible(request):
 264         return HttpResponseForbidden("Not authorized.")
 265
 266     # TODO: move to celery
 267     doc = book.wldocument()
 268     # TODO: error handling
 269     epub = doc.as_epub().get_string()
 270     response = HttpResponse(mimetype='application/epub+zip')
 271     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 272     response.write(epub)
 273     return response
 274
 275
 276 @never_cache
 277 def revision(request, slug, chunk=None):
 278     try:
 279         doc = Chunk.get(slug, chunk)
 280     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 281         raise Http404
 282     if not doc.book.accessible(request):
 283         return HttpResponseForbidden("Not authorized.")
 284     return http.HttpResponse(str(doc.revision()))
 285
 286
 287 def book(request, slug):
 288     book = get_object_or_404(Book, slug=slug)
 289     if not book.accessible(request):
 290         return HttpResponseForbidden("Not authorized.")
 291
 292     if request.user.has_perm('catalogue.change_book'):
 293         if request.method == "POST":
 294             form = forms.BookForm(request.POST, instance=book)
 295             if form.is_valid():
 296                 form.save()
 297                 return http.HttpResponseRedirect(book.get_absolute_url())
 298         else:
 299             form = forms.BookForm(instance=book)
 300         editable = True
 301     else:
 302         form = forms.ReadonlyBookForm(instance=book)
 303         editable = False
 304
 305     publish_error = publishable_error(book)
 306     publishable = publish_error is None
 307
 308     return direct_to_template(request, "catalogue/book_detail.html", extra_context={
 309         "book": book,
 310         "publishable": publishable,
 311         "publishable_error": publish_error,
 312         "form": form,
 313         "editable": editable,
 314     })
 315
 316
 317 @permission_required('catalogue.add_chunk')
 318 def chunk_add(request, slug, chunk):
 319     try:
 320         doc = Chunk.get(slug, chunk)
 321     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 322         raise Http404
 323     if not doc.book.accessible(request):
 324         return HttpResponseForbidden("Not authorized.")
 325
 326     if request.method == "POST":
 327         form = forms.ChunkAddForm(request.POST, instance=doc)
 328         if form.is_valid():
 329             if request.user.is_authenticated():
 330                 creator = request.user
 331             else:
 332                 creator = None
 333             doc.split(creator=creator,
 334                 slug=form.cleaned_data['slug'],
 335                 title=form.cleaned_data['title'],
 336                 gallery_start=form.cleaned_data['gallery_start'],
 337                 user=form.cleaned_data['user'],
 338                 stage=form.cleaned_data['stage']
 339             )
 340
 341             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 342     else:
 343         form = forms.ChunkAddForm(initial={
 344                 "slug": str(doc.number + 1),
 345                 "title": "cz. %d" % (doc.number + 1, ),
 346         })
 347
 348     return direct_to_template(request, "catalogue/chunk_add.html", extra_context={
 349         "chunk": doc,
 350         "form": form,
 351     })
 352
 353
 354 def chunk_edit(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.ChunkForm(request.POST, instance=doc)
 364         if form.is_valid():
 365             form.save()
 366             go_next = request.GET.get('next', None)
 367             if go_next:
 368                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 369             else:
 370                 go_next = doc.book.get_absolute_url()
 371             return http.HttpResponseRedirect(go_next)
 372     else:
 373         form = forms.ChunkForm(instance=doc)
 374
 375     referer = request.META.get('HTTP_REFERER')
 376     if referer:
 377         parts = urlsplit(referer)
 378         parts = ['', ''] + list(parts[2:])
 379         go_next = urlquote_plus(urlunsplit(parts))
 380     else:
 381         go_next = ''
 382
 383     return direct_to_template(request, "catalogue/chunk_edit.html", extra_context={
 384         "chunk": doc,
 385         "form": form,
 386         "go_next": go_next,
 387     })
 388
 389
 390 @permission_required('catalogue.change_book')
 391 def book_append(request, slug):
 392     book = get_object_or_404(Book, slug=slug)
 393     if not book.accessible(request):
 394         return HttpResponseForbidden("Not authorized.")
 395
 396     if request.method == "POST":
 397         form = forms.BookAppendForm(book, request.POST)
 398         if form.is_valid():
 399             append_to = form.cleaned_data['append_to']
 400             append_to.append(book)
 401             return http.HttpResponseRedirect(append_to.get_absolute_url())
 402     else:
 403         form = forms.BookAppendForm(book)
 404     return direct_to_template(request, "catalogue/book_append_to.html", extra_context={
 405         "book": book,
 406         "form": form,
 407
 408         "logout_to": '/',
 409     })
 410
 411
 412 @require_POST
 413 @login_required
 414 def publish(request, slug):
 415     book = get_object_or_404(Book, slug=slug)
 416     if not book.accessible(request):
 417         return HttpResponseForbidden("Not authorized.")
 418
 419     try:
 420         book.publish(request.user)
 421     except NotAuthorizedError:
 422         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 423     except BaseException, e:
 424         return http.HttpResponse(e)
 425     else:
 426         return http.HttpResponseRedirect(book.get_absolute_url())