2ee94aea7fc5467fea196c9c2c28490bc0f89fd8
[redakcja.git] / 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
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 from apiclient import NotAuthorizedError
23 from catalogue import forms
24 from catalogue import helpers
25 from catalogue.helpers import active_tab
26 from catalogue.models import Book, Chunk, BookPublishRecord, ChunkPublishRecord
27 from catalogue.tasks import publishable_error
28
29 #
30 # Quick hack around caching problems, TODO: use ETags
31 #
32 from django.views.decorators.cache import never_cache
33
34 logger = logging.getLogger("fnp.catalogue")
35
36
37 @active_tab('all')
38 @never_cache
39 def document_list(request):
40     return render(request, 'catalogue/document_list.html')
41
42
43 @never_cache
44 def user(request, username):
45     user = get_object_or_404(User, username=username)
46     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
47
48
49 @login_required
50 @active_tab('my')
51 @never_cache
52 def my(request):
53     return render(request, 'catalogue/my_page.html', {
54         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
55                         key=lambda x: x[1]['time'], reverse=True),
56
57         "logout_to": '/',
58         })
59
60
61 @active_tab('users')
62 def users(request):
63     return direct_to_template(request, 'catalogue/user_list.html', extra_context={
64         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
65             '-count', 'last_name', 'first_name'),
66     })
67
68
69 @active_tab('activity')
70 def activity(request, isodate=None):
71     today = date.today()
72     try:
73         day = helpers.parse_isodate(isodate)
74     except ValueError:
75         day = today
76
77     if day > today:
78         raise Http404
79     if day != today:
80         next_day = day + timedelta(1)
81     prev_day = day - timedelta(1)
82
83     return render(request, 'catalogue/activity.html', locals())
84
85
86 @never_cache
87 def logout_then_redirect(request):
88     auth.logout(request)
89     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
90
91
92 @permission_required('catalogue.add_book')
93 @active_tab('create')
94 def create_missing(request, slug=None):
95     if slug is None:
96         slug = ''
97     slug = slug.replace(' ', '-')
98
99     if request.method == "POST":
100         form = forms.DocumentCreateForm(request.POST, request.FILES)
101         if form.is_valid():
102             
103             if request.user.is_authenticated():
104                 creator = request.user
105             else:
106                 creator = None
107             book = Book.create(
108                 text=form.cleaned_data['text'],
109                 creator=creator,
110                 slug=form.cleaned_data['slug'],
111                 title=form.cleaned_data['title'],
112                 gallery=form.cleaned_data['gallery'],
113             )
114
115             return http.HttpResponseRedirect(reverse("catalogue_book", args=[book.slug]))
116     else:
117         form = forms.DocumentCreateForm(initial={
118                 "slug": slug,
119                 "title": slug.replace('-', ' ').title(),
120                 "gallery": slug,
121         })
122
123     return direct_to_template(request, "catalogue/document_create_missing.html", extra_context={
124         "slug": slug,
125         "form": form,
126
127         "logout_to": '/',
128     })
129
130
131 @permission_required('catalogue.add_book')
132 @active_tab('upload')
133 def upload(request):
134     if request.method == "POST":
135         form = forms.DocumentsUploadForm(request.POST, request.FILES)
136         if form.is_valid():
137             import slughifi
138
139             if request.user.is_authenticated():
140                 creator = request.user
141             else:
142                 creator = None
143
144             zip = form.cleaned_data['zip']
145             skipped_list = []
146             ok_list = []
147             error_list = []
148             slugs = {}
149             existing = [book.slug for book in Book.objects.all()]
150             for filename in zip.namelist():
151                 if filename[-1] == '/':
152                     continue
153                 title = os.path.basename(filename)[:-4]
154                 slug = slughifi(title)
155                 if not (slug and filename.endswith('.xml')):
156                     skipped_list.append(filename)
157                 elif slug in slugs:
158                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
159                 elif slug in existing:
160                     error_list.append((filename, slug, _('Slug already used in repository.')))
161                 else:
162                     try:
163                         zip.read(filename).decode('utf-8') # test read
164                         ok_list.append((filename, slug, title))
165                     except UnicodeDecodeError:
166                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
167                     slugs[slug] = filename
168
169             if not error_list:
170                 for filename, slug, title in ok_list:
171                     book = Book.create(
172                         text=zip.read(filename).decode('utf-8'),
173                         creator=creator,
174                         slug=slug,
175                         title=title,
176                     )
177
178             return direct_to_template(request, "catalogue/document_upload.html", extra_context={
179                 "form": form,
180                 "ok_list": ok_list,
181                 "skipped_list": skipped_list,
182                 "error_list": error_list,
183
184                 "logout_to": '/',
185             })
186     else:
187         form = forms.DocumentsUploadForm()
188
189     return direct_to_template(request, "catalogue/document_upload.html", extra_context={
190         "form": form,
191
192         "logout_to": '/',
193     })
194
195
196 @never_cache
197 def book_xml(request, slug):
198     book = get_object_or_404(Book, slug=slug)
199     if not book.accessible(request):
200         return HttpResponseForbidden("Not authorized.")
201     xml = book.materialize()
202
203     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
204     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
205     return response
206
207
208 @never_cache
209 def book_txt(request, slug):
210     book = get_object_or_404(Book, slug=slug)
211     if not book.accessible(request):
212         return HttpResponseForbidden("Not authorized.")
213
214     doc = book.wldocument()
215     text = doc.as_text().get_string()
216     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
217     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
218     return response
219
220
221 @never_cache
222 def book_html(request, slug):
223     book = get_object_or_404(Book, slug=slug)
224     if not book.accessible(request):
225         return HttpResponseForbidden("Not authorized.")
226
227     doc = book.wldocument(parse_dublincore=False)
228     html = doc.as_html(flags=['full-page'])
229     html = html.get_string() if html is not None else ''
230     response = http.HttpResponse(html, content_type='text/html', mimetype='text/html')
231     return response
232
233
234 @never_cache
235 def book_pdf(request, slug):
236     book = get_object_or_404(Book, slug=slug)
237     if not book.accessible(request):
238         return HttpResponseForbidden("Not authorized.")
239
240     # TODO: move to celery
241     doc = book.wldocument()
242     # TODO: error handling
243     pdf_file = doc.as_pdf()
244     from catalogue.ebook_utils import serve_file
245     return serve_file(pdf_file.get_filename(),
246                 book.slug + '.pdf', 'application/pdf')
247
248
249 @never_cache
250 def book_epub(request, slug):
251     book = get_object_or_404(Book, slug=slug)
252     if not book.accessible(request):
253         return HttpResponseForbidden("Not authorized.")
254
255     # TODO: move to celery
256     doc = book.wldocument()
257     # TODO: error handling
258     epub = doc.as_epub().get_string()
259     response = HttpResponse(mimetype='application/epub+zip')
260     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
261     response.write(epub)
262     return response
263
264
265 @never_cache
266 def revision(request, slug, chunk=None):
267     try:
268         doc = Chunk.get(slug, chunk)
269     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
270         raise Http404
271     if not doc.book.accessible(request):
272         return HttpResponseForbidden("Not authorized.")
273     return http.HttpResponse(str(doc.revision()))
274
275
276 def book(request, slug):
277     book = get_object_or_404(Book, slug=slug)
278     if not book.accessible(request):
279         return HttpResponseForbidden("Not authorized.")
280
281     if request.user.has_perm('catalogue.change_book'):
282         if request.method == "POST":
283             form = forms.BookForm(request.POST, instance=book)
284             if form.is_valid():
285                 form.save()
286                 return http.HttpResponseRedirect(book.get_absolute_url())
287         else:
288             form = forms.BookForm(instance=book)
289         editable = True
290     else:
291         form = forms.ReadonlyBookForm(instance=book)
292         editable = False
293
294     publish_error = publishable_error(book)
295     publishable = publish_error is None
296
297     return direct_to_template(request, "catalogue/book_detail.html", extra_context={
298         "book": book,
299         "publishable": publishable,
300         "publishable_error": publish_error,
301         "form": form,
302         "editable": editable,
303     })
304
305
306 @permission_required('catalogue.add_chunk')
307 def chunk_add(request, slug, chunk):
308     try:
309         doc = Chunk.get(slug, chunk)
310     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
311         raise Http404
312     if not doc.book.accessible(request):
313         return HttpResponseForbidden("Not authorized.")
314
315     if request.method == "POST":
316         form = forms.ChunkAddForm(request.POST, instance=doc)
317         if form.is_valid():
318             if request.user.is_authenticated():
319                 creator = request.user
320             else:
321                 creator = None
322             doc.split(creator=creator,
323                 slug=form.cleaned_data['slug'],
324                 title=form.cleaned_data['title'],
325                 gallery_start=form.cleaned_data['gallery_start'],
326                 user=form.cleaned_data['user'],
327                 stage=form.cleaned_data['stage']
328             )
329
330             return http.HttpResponseRedirect(doc.book.get_absolute_url())
331     else:
332         form = forms.ChunkAddForm(initial={
333                 "slug": str(doc.number + 1),
334                 "title": "cz. %d" % (doc.number + 1, ),
335         })
336
337     return direct_to_template(request, "catalogue/chunk_add.html", extra_context={
338         "chunk": doc,
339         "form": form,
340     })
341
342
343 def chunk_edit(request, slug, chunk):
344     try:
345         doc = Chunk.get(slug, chunk)
346     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
347         raise Http404
348     if not doc.book.accessible(request):
349         return HttpResponseForbidden("Not authorized.")
350
351     if request.method == "POST":
352         form = forms.ChunkForm(request.POST, instance=doc)
353         if form.is_valid():
354             form.save()
355             go_next = request.GET.get('next', None)
356             if go_next:
357                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
358             else:
359                 go_next = doc.book.get_absolute_url()
360             return http.HttpResponseRedirect(go_next)
361     else:
362         form = forms.ChunkForm(instance=doc)
363
364     referer = request.META.get('HTTP_REFERER')
365     if referer:
366         parts = urlsplit(referer)
367         parts = ['', ''] + list(parts[2:])
368         go_next = urlquote_plus(urlunsplit(parts))
369     else:
370         go_next = ''
371
372     return direct_to_template(request, "catalogue/chunk_edit.html", extra_context={
373         "chunk": doc,
374         "form": form,
375         "go_next": go_next,
376     })
377
378
379 @permission_required('catalogue.change_book')
380 def book_append(request, slug):
381     book = get_object_or_404(Book, slug=slug)
382     if not book.accessible(request):
383         return HttpResponseForbidden("Not authorized.")
384
385     if request.method == "POST":
386         form = forms.BookAppendForm(book, request.POST)
387         if form.is_valid():
388             append_to = form.cleaned_data['append_to']
389             append_to.append(book)
390             return http.HttpResponseRedirect(append_to.get_absolute_url())
391     else:
392         form = forms.BookAppendForm(book)
393     return direct_to_template(request, "catalogue/book_append_to.html", extra_context={
394         "book": book,
395         "form": form,
396
397         "logout_to": '/',
398     })
399
400
401 @require_POST
402 @login_required
403 def publish(request, slug):
404     book = get_object_or_404(Book, slug=slug)
405     if not book.accessible(request):
406         return HttpResponseForbidden("Not authorized.")
407
408     try:
409         book.publish(request.user)
410     except NotAuthorizedError:
411         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
412     except BaseException, e:
413         return http.HttpResponse(e)
414     else:
415         return http.HttpResponseRedirect(book.get_absolute_url())