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