apps/catalogue/views.py

   1 from datetime import datetime
   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
  15 from django.shortcuts import get_object_or_404, render
  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
  22 import librarian.html
  23 import librarian.text
  24
  25 from apiclient import NotAuthorizedError
  26 from catalogue import forms
  27 from catalogue import helpers
  28 from catalogue.helpers import active_tab
  29 from catalogue.models import Book, Chunk, BookPublishRecord, ChunkPublishRecord
  30 from catalogue import xml_tools
  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 @never_cache
  47 def user(request, username):
  48     user = get_object_or_404(User, username=username)
  49     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
  50
  51
  52 @login_required
  53 @active_tab('my')
  54 @never_cache
  55 def my(request):
  56     return render(request, 'catalogue/my_page.html', {
  57         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
  58                         key=lambda x: x[1]['time'], reverse=True),
  59
  60         "logout_to": '/',
  61         })
  62
  63
  64 @active_tab('users')
  65 def users(request):
  66     return direct_to_template(request, 'catalogue/user_list.html', extra_context={
  67         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  68             '-count', 'last_name', 'first_name'),
  69     })
  70
  71
  72 @active_tab('activity')
  73 def activity(request):
  74     return render(request, 'catalogue/activity.html')
  75
  76
  77 @never_cache
  78 def logout_then_redirect(request):
  79     auth.logout(request)
  80     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  81
  82
  83 @permission_required('catalogue.add_book')
  84 @active_tab('create')
  85 def create_missing(request, slug=None):
  86     if slug is None:
  87         slug = ''
  88     slug = slug.replace(' ', '-')
  89
  90     if request.method == "POST":
  91         form = forms.DocumentCreateForm(request.POST, request.FILES)
  92         if form.is_valid():
  93
  94             if request.user.is_authenticated():
  95                 creator = request.user
  96             else:
  97                 creator = None
  98             book = Book.create(
  99                 text=form.cleaned_data['text'],
 100                 creator=creator,
 101                 slug=form.cleaned_data['slug'],
 102                 title=form.cleaned_data['title'],
 103             )
 104
 105             return http.HttpResponseRedirect(reverse("wiki_editor", args=[book.slug]))
 106     else:
 107         form = forms.DocumentCreateForm(initial={
 108                 "slug": slug,
 109                 "title": slug.replace('-', ' ').title(),
 110         })
 111
 112     return direct_to_template(request, "catalogue/document_create_missing.html", extra_context={
 113         "slug": slug,
 114         "form": form,
 115
 116         "logout_to": '/',
 117     })
 118
 119
 120 @permission_required('catalogue.add_book')
 121 @active_tab('upload')
 122 def upload(request):
 123     if request.method == "POST":
 124         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 125         if form.is_valid():
 126             import slughifi
 127
 128             if request.user.is_authenticated():
 129                 creator = request.user
 130             else:
 131                 creator = None
 132
 133             zip = form.cleaned_data['zip']
 134             skipped_list = []
 135             ok_list = []
 136             error_list = []
 137             slugs = {}
 138             existing = [book.slug for book in Book.objects.all()]
 139             for filename in zip.namelist():
 140                 if filename[-1] == '/':
 141                     continue
 142                 title = os.path.basename(filename)[:-4]
 143                 slug = slughifi(title)
 144                 if not (slug and filename.endswith('.xml')):
 145                     skipped_list.append(filename)
 146                 elif slug in slugs:
 147                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 148                 elif slug in existing:
 149                     error_list.append((filename, slug, _('Slug already used in repository.')))
 150                 else:
 151                     try:
 152                         zip.read(filename).decode('utf-8') # test read
 153                         ok_list.append((filename, slug, title))
 154                     except UnicodeDecodeError:
 155                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 156                     slugs[slug] = filename
 157
 158             if not error_list:
 159                 for filename, slug, title in ok_list:
 160                     book = Book.create(
 161                         text=zip.read(filename).decode('utf-8'),
 162                         creator=creator,
 163                         slug=slug,
 164                         title=title,
 165                     )
 166
 167             return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 168                 "form": form,
 169                 "ok_list": ok_list,
 170                 "skipped_list": skipped_list,
 171                 "error_list": error_list,
 172
 173                 "logout_to": '/',
 174             })
 175     else:
 176         form = forms.DocumentsUploadForm()
 177
 178     return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 179         "form": form,
 180
 181         "logout_to": '/',
 182     })
 183
 184
 185 @never_cache
 186 def book_xml(request, slug):
 187     xml = get_object_or_404(Book, slug=slug).materialize()
 188
 189     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
 190     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 191     return response
 192
 193
 194 @never_cache
 195 def book_txt(request, slug):
 196     xml = get_object_or_404(Book, slug=slug).materialize()
 197     output = StringIO()
 198     # errors?
 199     librarian.text.transform(StringIO(xml), output)
 200     text = output.getvalue()
 201     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
 202     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 203     return response
 204
 205
 206 @never_cache
 207 def book_html(request, slug):
 208     xml = get_object_or_404(Book, slug=slug).materialize()
 209     output = StringIO()
 210     # errors?
 211     librarian.html.transform(StringIO(xml), output, parse_dublincore=False,
 212                              flags=['full-page'])
 213     html = output.getvalue()
 214     response = http.HttpResponse(html, content_type='text/html', mimetype='text/html')
 215     return response
 216
 217
 218 @never_cache
 219 def revision(request, slug, chunk=None):
 220     try:
 221         doc = Chunk.get(slug, chunk)
 222     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 223         raise Http404
 224     return http.HttpResponse(str(doc.revision()))
 225
 226
 227 def book(request, slug):
 228     book = get_object_or_404(Book, slug=slug)
 229
 230     if request.user.has_perm('catalogue.change_book'):
 231         if request.method == "POST":
 232             form = forms.BookForm(request.POST, instance=book)
 233             if form.is_valid():
 234                 form.save()
 235                 return http.HttpResponseRedirect(book.get_absolute_url())
 236         else:
 237             form = forms.BookForm(instance=book)
 238             editable = True
 239     else:
 240         form = forms.ReadonlyBookForm(instance=book)
 241         editable = False
 242
 243
 244     try:
 245         book.assert_publishable()
 246     except AssertionError, e:
 247         publishable = False
 248         publishable_error = e
 249     else:
 250         publishable = True
 251         publishable_error = None
 252
 253     return direct_to_template(request, "catalogue/book_detail.html", extra_context={
 254         "book": book,
 255         "publishable": publishable,
 256         "publishable_error": publishable_error,
 257         "form": form,
 258         "editable": editable,
 259     })
 260
 261
 262 @permission_required('catalogue.add_chunk')
 263 def chunk_add(request, slug, chunk):
 264     try:
 265         doc = Chunk.get(slug, chunk)
 266     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 267         raise Http404
 268
 269     if request.method == "POST":
 270         form = forms.ChunkAddForm(request.POST, instance=doc)
 271         if form.is_valid():
 272             if request.user.is_authenticated():
 273                 creator = request.user
 274             else:
 275                 creator = None
 276             doc.split(creator=creator,
 277                 slug=form.cleaned_data['slug'],
 278                 title=form.cleaned_data['title'],
 279             )
 280
 281             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 282     else:
 283         form = forms.ChunkAddForm(initial={
 284                 "slug": str(doc.number + 1),
 285                 "title": "cz. %d" % (doc.number + 1, ),
 286         })
 287
 288     return direct_to_template(request, "catalogue/chunk_add.html", extra_context={
 289         "chunk": doc,
 290         "form": form,
 291     })
 292
 293
 294 def chunk_edit(request, slug, chunk):
 295     try:
 296         doc = Chunk.get(slug, chunk)
 297     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 298         raise Http404
 299     if request.method == "POST":
 300         form = forms.ChunkForm(request.POST, instance=doc)
 301         if form.is_valid():
 302             form.save()
 303             go_next = request.GET.get('next', None)
 304             if go_next:
 305                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 306             else:
 307                 go_next = doc.book.get_absolute_url()
 308             return http.HttpResponseRedirect(go_next)
 309     else:
 310         form = forms.ChunkForm(instance=doc)
 311
 312     parts = urlsplit(request.META['HTTP_REFERER'])
 313     parts = ['', ''] + list(parts[2:])
 314     go_next = urlquote_plus(urlunsplit(parts))
 315
 316     return direct_to_template(request, "catalogue/chunk_edit.html", extra_context={
 317         "chunk": doc,
 318         "form": form,
 319         "go_next": go_next,
 320     })
 321
 322
 323 @permission_required('catalogue.change_book')
 324 def book_append(request, slug):
 325     book = get_object_or_404(Book, slug=slug)
 326     if request.method == "POST":
 327         form = forms.BookAppendForm(book, request.POST)
 328         if form.is_valid():
 329             append_to = form.cleaned_data['append_to']
 330             append_to.append(book)
 331             return http.HttpResponseRedirect(append_to.get_absolute_url())
 332     else:
 333         form = forms.BookAppendForm(book)
 334     return direct_to_template(request, "catalogue/book_append_to.html", extra_context={
 335         "book": book,
 336         "form": form,
 337
 338         "logout_to": '/',
 339     })
 340
 341
 342 @require_POST
 343 @login_required
 344 def publish(request, slug):
 345     book = get_object_or_404(Book, slug=slug)
 346     try:
 347         book.publish(request.user)
 348     except NotAuthorizedError:
 349         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 350     except BaseException, e:
 351         return http.HttpResponse(e)
 352     else:
 353         return http.HttpResponseRedirect(book.get_absolute_url())