update librarian
[redakcja.git] / apps / catalogue / views.py
1 # -*- coding: utf-8 -*-
2 from collections import defaultdict
3 from datetime import datetime, date, timedelta
4 import logging
5 import os
6 from StringIO import StringIO
7 from urllib import unquote
8 from urlparse import urlsplit, urlunsplit
9
10 from django.conf import settings
11 from django.contrib import auth
12 from django.contrib.auth.models import User
13 from django.contrib.auth.decorators import login_required, permission_required
14 from django.core.urlresolvers import reverse
15 from django.db.models import Count, Q
16 from django.db import transaction
17 from django import http
18 from django.http import Http404, HttpResponse, HttpResponseForbidden
19 from django.http.response import HttpResponseRedirect
20 from django.shortcuts import get_object_or_404, render
21 from django.utils.encoding import iri_to_uri
22 from django.utils.http import urlquote_plus
23 from django.utils.translation import ugettext_lazy as _
24 from django.views.decorators.http import require_POST
25 from django_cas.decorators import user_passes_test
26
27 from apiclient import NotAuthorizedError
28 from catalogue import forms
29 from catalogue import helpers
30 from catalogue.helpers import active_tab
31 from catalogue.models import (Book, Chunk, Image, BookPublishRecord, 
32         ChunkPublishRecord, ImagePublishRecord, Project)
33 from fileupload.views import UploadView
34
35 #
36 # Quick hack around caching problems, TODO: use ETags
37 #
38 from django.views.decorators.cache import never_cache
39
40 logger = logging.getLogger("fnp.catalogue")
41
42
43 @active_tab('all')
44 @never_cache
45 def document_list(request):
46     return render(request, 'catalogue/document_list.html')
47
48
49 @active_tab('images')
50 @never_cache
51 def image_list(request, user=None):
52     return render(request, 'catalogue/image_list.html')
53
54
55 @never_cache
56 def user(request, username):
57     user = get_object_or_404(User, username=username)
58     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
59
60
61 @login_required
62 @active_tab('my')
63 @never_cache
64 def my(request):
65     last_books = sorted(request.session.get("wiki_last_books", {}).items(),
66         key=lambda x: x[1]['time'], reverse=True)
67     for k, v in last_books:
68         v['time'] = datetime.fromtimestamp(v['time'])
69     return render(request, 'catalogue/my_page.html', {
70         'last_books': last_books,
71         "logout_to": '/',
72         })
73
74
75 @active_tab('users')
76 def users(request):
77     return render(request, 'catalogue/user_list.html', {
78         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
79             '-count', 'last_name', 'first_name'),
80     })
81
82
83 @active_tab('activity')
84 def activity(request, isodate=None):
85     today = date.today()
86     try:
87         day = helpers.parse_isodate(isodate)
88     except ValueError:
89         day = today
90
91     if day > today:
92         raise Http404
93     if day != today:
94         next_day = day + timedelta(1)
95     prev_day = day - timedelta(1)
96
97     return render(request, 'catalogue/activity.html', locals())
98
99
100 @never_cache
101 def logout_then_redirect(request):
102     auth.logout(request)
103     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
104
105
106 @permission_required('catalogue.add_book')
107 @active_tab('create')
108 def create_missing(request, slug=None):
109     if slug is None:
110         slug = ''
111     slug = slug.replace(' ', '-')
112
113     if request.method == "POST":
114         form = forms.DocumentCreateForm(request.POST, request.FILES)
115         if form.is_valid():
116             
117             if request.user.is_authenticated():
118                 creator = request.user
119             else:
120                 creator = None
121             book = Book.create(
122                 text=form.cleaned_data['text'],
123                 creator=creator,
124                 slug=form.cleaned_data['slug'],
125                 title=form.cleaned_data['title'],
126                 gallery=form.cleaned_data['gallery'],
127             )
128
129             return http.HttpResponseRedirect(reverse("catalogue_book", args=[book.slug]))
130     else:
131         form = forms.DocumentCreateForm(initial={
132                 "slug": slug,
133                 "title": slug.replace('-', ' ').title(),
134                 "gallery": slug,
135         })
136
137     return render(request, "catalogue/document_create_missing.html", {
138         "slug": slug,
139         "form": form,
140
141         "logout_to": '/',
142     })
143
144
145 @permission_required('catalogue.add_book')
146 @active_tab('upload')
147 def upload(request):
148     if request.method == "POST":
149         form = forms.DocumentsUploadForm(request.POST, request.FILES)
150         if form.is_valid():
151             from slugify import slugify
152
153             if request.user.is_authenticated():
154                 creator = request.user
155             else:
156                 creator = None
157
158             zip = form.cleaned_data['zip']
159             skipped_list = []
160             ok_list = []
161             error_list = []
162             slugs = {}
163             existing = [book.slug for book in Book.objects.all()]
164             for filename in zip.namelist():
165                 if filename[-1] == '/':
166                     continue
167                 title = os.path.basename(filename)[:-4]
168                 slug = slugify(title)
169                 if not (slug and filename.endswith('.xml')):
170                     skipped_list.append(filename)
171                 elif slug in slugs:
172                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
173                 elif slug in existing:
174                     error_list.append((filename, slug, _('Slug already used in repository.')))
175                 else:
176                     try:
177                         zip.read(filename).decode('utf-8') # test read
178                         ok_list.append((filename, slug, title))
179                     except UnicodeDecodeError:
180                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
181                     slugs[slug] = filename
182
183             if not error_list:
184                 for filename, slug, title in ok_list:
185                     book = Book.create(
186                         text=zip.read(filename).decode('utf-8'),
187                         creator=creator,
188                         slug=slug,
189                         title=title,
190                     )
191
192             return render(request, "catalogue/document_upload.html", {
193                 "form": form,
194                 "ok_list": ok_list,
195                 "skipped_list": skipped_list,
196                 "error_list": error_list,
197
198                 "logout_to": '/',
199             })
200     else:
201         form = forms.DocumentsUploadForm()
202
203     return render(request, "catalogue/document_upload.html", {
204         "form": form,
205
206         "logout_to": '/',
207     })
208
209
210 def serve_xml(request, book, slug):
211     if not book.accessible(request):
212         return HttpResponseForbidden("Not authorized.")
213     xml = book.materialize(publishable=True)
214     response = http.HttpResponse(xml, content_type='application/xml')
215     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
216     return response
217
218
219 @never_cache
220 def book_xml(request, slug):
221     book = get_object_or_404(Book, slug=slug)
222     return serve_xml(request, book, slug)
223
224
225 @never_cache
226 def book_xml_dc(request, slug):
227     book = get_object_or_404(Book, dc_slug=slug)
228     return serve_xml(request, book, slug)
229
230
231 @never_cache
232 def book_txt(request, slug):
233     book = get_object_or_404(Book, slug=slug)
234     if not book.accessible(request):
235         return HttpResponseForbidden("Not authorized.")
236
237     doc = book.wldocument()
238     text = doc.as_text().get_string()
239     response = http.HttpResponse(text, content_type='text/plain')
240     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
241     return response
242
243
244 @never_cache
245 def book_html(request, slug):
246     book = get_object_or_404(Book, slug=slug)
247     if not book.accessible(request):
248         return HttpResponseForbidden("Not authorized.")
249
250     doc = book.wldocument(parse_dublincore=False)
251     html = doc.as_html(options={'gallery': "'%s'" % book.gallery_url()})
252
253     html = html.get_string() if html is not None else ''
254     # response = http.HttpResponse(html, content_type='text/html')
255     # return response
256     # book_themes = {}
257     # for fragment in book.fragments.all().iterator():
258     #     for theme in fragment.tags.filter(category='theme').iterator():
259     #         book_themes.setdefault(theme, []).append(fragment)
260
261     # book_themes = book_themes.items()
262     # book_themes.sort(key=lambda s: s[0].sort_key)
263     return render(request, 'catalogue/book_text.html', locals())
264
265
266 @never_cache
267 def book_pdf(request, slug):
268     book = get_object_or_404(Book, slug=slug)
269     if not book.accessible(request):
270         return HttpResponseForbidden("Not authorized.")
271
272     # TODO: move to celery
273     doc = book.wldocument()
274     # TODO: error handling
275     pdf_file = doc.as_pdf(cover=True, ilustr_path=book.gallery_path())
276     from catalogue.ebook_utils import serve_file
277     return serve_file(pdf_file.get_filename(),
278                 book.slug + '.pdf', 'application/pdf')
279
280
281 @never_cache
282 def book_epub(request, slug):
283     book = get_object_or_404(Book, slug=slug)
284     if not book.accessible(request):
285         return HttpResponseForbidden("Not authorized.")
286
287     # TODO: move to celery
288     doc = book.wldocument()
289     # TODO: error handling
290     epub = doc.as_epub(ilustr_path=book.gallery_path()).get_string()
291     response = HttpResponse(content_type='application/epub+zip')
292     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
293     response.write(epub)
294     return response
295
296
297 @never_cache
298 def book_mobi(request, slug):
299     book = get_object_or_404(Book, slug=slug)
300     if not book.accessible(request):
301         return HttpResponseForbidden("Not authorized.")
302
303     # TODO: move to celery
304     doc = book.wldocument()
305     # TODO: error handling
306     mobi = doc.as_mobi(ilustr_path=book.gallery_path()).get_string()
307     response = HttpResponse(content_type='application/x-mobipocket-ebook')
308     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.mobi'
309     response.write(mobi)
310     return response
311
312
313 @never_cache
314 def revision(request, slug, chunk=None):
315     try:
316         doc = Chunk.get(slug, chunk)
317     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
318         raise Http404
319     if not doc.book.accessible(request):
320         return HttpResponseForbidden("Not authorized.")
321     return http.HttpResponse(str(doc.revision()))
322
323
324 def book(request, slug):
325     book = get_object_or_404(Book, slug=slug)
326     if not book.accessible(request):
327         return HttpResponseForbidden("Not authorized.")
328
329     if request.user.has_perm('catalogue.change_book'):
330         if request.method == "POST":
331             form = forms.BookForm(request.POST, instance=book)
332             if form.is_valid():
333                 form.save()
334                 return http.HttpResponseRedirect(book.get_absolute_url())
335         else:
336             form = forms.BookForm(instance=book)
337         publish_options_form = forms.PublishOptionsForm()
338         editable = True
339     else:
340         form = forms.ReadonlyBookForm(instance=book)
341         publish_options_form = forms.PublishOptionsForm()
342         editable = False
343
344     publish_error = book.publishable_error()
345     publishable = publish_error is None
346
347     return render(request, "catalogue/book_detail.html", {
348         "book": book,
349         "publishable": publishable,
350         "publishable_error": publish_error,
351         "form": form,
352         "publish_options_form": publish_options_form,
353         "editable": editable,
354     })
355
356
357 def image(request, slug):
358     image = get_object_or_404(Image, slug=slug)
359     if not image.accessible(request):
360         return HttpResponseForbidden("Not authorized.")
361
362     if request.user.has_perm('catalogue.change_image'):
363         if request.method == "POST":
364             form = forms.ImageForm(request.POST, instance=image)
365             if form.is_valid():
366                 form.save()
367                 return http.HttpResponseRedirect(image.get_absolute_url())
368         else:
369             form = forms.ImageForm(instance=image)
370         editable = True
371     else:
372         form = forms.ReadonlyImageForm(instance=image)
373         editable = False
374
375     publish_error = image.publishable_error()
376     publishable = publish_error is None
377
378     return render(request, "catalogue/image_detail.html", {
379         "object": image,
380         "publishable": publishable,
381         "publishable_error": publish_error,
382         "form": form,
383         "editable": editable,
384     })
385
386
387 @permission_required('catalogue.add_chunk')
388 def chunk_add(request, slug, chunk):
389     try:
390         doc = Chunk.get(slug, chunk)
391     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
392         raise Http404
393     if not doc.book.accessible(request):
394         return HttpResponseForbidden("Not authorized.")
395
396     if request.method == "POST":
397         form = forms.ChunkAddForm(request.POST, instance=doc)
398         if form.is_valid():
399             if request.user.is_authenticated():
400                 creator = request.user
401             else:
402                 creator = None
403             doc.split(creator=creator,
404                 slug=form.cleaned_data['slug'],
405                 title=form.cleaned_data['title'],
406                 gallery_start=form.cleaned_data['gallery_start'],
407                 user=form.cleaned_data['user'],
408                 stage=form.cleaned_data['stage']
409             )
410
411             return http.HttpResponseRedirect(doc.book.get_absolute_url())
412     else:
413         form = forms.ChunkAddForm(initial={
414                 "slug": str(doc.number + 1),
415                 "title": "cz. %d" % (doc.number + 1, ),
416         })
417
418     return render(request, "catalogue/chunk_add.html", {
419         "chunk": doc,
420         "form": form,
421     })
422
423
424 @login_required
425 def chunk_edit(request, slug, chunk):
426     try:
427         doc = Chunk.get(slug, chunk)
428     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
429         raise Http404
430     if not doc.book.accessible(request):
431         return HttpResponseForbidden("Not authorized.")
432
433     if request.method == "POST":
434         form = forms.ChunkForm(request.POST, instance=doc)
435         if form.is_valid():
436             form.save()
437             go_next = request.GET.get('next', None)
438             if go_next:
439                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
440             else:
441                 go_next = doc.book.get_absolute_url()
442             return http.HttpResponseRedirect(go_next)
443     else:
444         form = forms.ChunkForm(instance=doc)
445
446     referer = request.META.get('HTTP_REFERER')
447     if referer:
448         parts = urlsplit(referer)
449         parts = ['', ''] + list(parts[2:])
450         go_next = urlquote_plus(urlunsplit(parts))
451     else:
452         go_next = ''
453
454     return render(request, "catalogue/chunk_edit.html", {
455         "chunk": doc,
456         "form": form,
457         "go_next": go_next,
458     })
459
460
461 @transaction.atomic
462 @login_required
463 @require_POST
464 def chunk_mass_edit(request):
465     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
466     chunks = map(lambda i: Chunk.objects.get(id=i), ids)
467     
468     stage = request.POST.get('stage')
469     if stage:
470         try:
471             stage = Chunk.tag_model.objects.get(slug=stage)
472         except Chunk.DoesNotExist, e:
473             stage = None
474        
475         for c in chunks: c.stage = stage
476
477     username = request.POST.get('user')
478     logger.info("username: %s" % username)
479     logger.info(request.POST)
480     if username:
481         try:
482             user = User.objects.get(username=username)
483         except User.DoesNotExist, e:
484             user = None
485             
486         for c in chunks: c.user = user
487
488     project_id = request.POST.get('project')
489     if project_id:
490         try:
491             project = Project.objects.get(pk=int(project_id))
492         except (Project.DoesNotExist, ValueError), e:
493             project = None
494         for c in chunks:
495             book = c.book
496             book.project = project
497             book.save()
498
499     for c in chunks: c.save()
500
501     return HttpResponse("", content_type="text/plain")
502
503
504 @transaction.atomic
505 @login_required
506 @require_POST
507 def image_mass_edit(request):
508     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
509     images = map(lambda i: Image.objects.get(id=i), ids)
510     
511     stage = request.POST.get('stage')
512     if stage:
513         try:
514             stage = Image.tag_model.objects.get(slug=stage)
515         except Image.DoesNotExist, e:
516             stage = None
517        
518         for c in images: c.stage = stage
519
520     username = request.POST.get('user')
521     logger.info("username: %s" % username)
522     logger.info(request.POST)
523     if username:
524         try:
525             user = User.objects.get(username=username)
526         except User.DoesNotExist, e:
527             user = None
528             
529         for c in images: c.user = user
530
531     project_id = request.POST.get('project')
532     if project_id:
533         try:
534             project = Project.objects.get(pk=int(project_id))
535         except (Project.DoesNotExist, ValueError), e:
536             project = None
537         for c in images:
538             c.project = project
539
540     for c in images: c.save()
541
542     return HttpResponse("", content_type="text/plain")
543
544
545 @permission_required('catalogue.change_book')
546 def book_append(request, slug):
547     book = get_object_or_404(Book, slug=slug)
548     if not book.accessible(request):
549         return HttpResponseForbidden("Not authorized.")
550
551     if request.method == "POST":
552         form = forms.BookAppendForm(book, request.POST)
553         if form.is_valid():
554             append_to = form.cleaned_data['append_to']
555             append_to.append(book)
556             return http.HttpResponseRedirect(append_to.get_absolute_url())
557     else:
558         form = forms.BookAppendForm(book)
559     return render(request, "catalogue/book_append_to.html", {
560         "book": book,
561         "form": form,
562
563         "logout_to": '/',
564     })
565
566
567 @require_POST
568 @login_required
569 def publish(request, slug):
570     form = forms.PublishOptionsForm(request.POST)
571     if form.is_valid():
572         days = form.cleaned_data['days']
573         beta = form.cleaned_data['beta']
574     else:
575         days = 0
576         beta = False
577     book = get_object_or_404(Book, slug=slug)
578     if not book.accessible(request):
579         return HttpResponseForbidden("Not authorized.")
580
581     try:
582         protocol = 'https://' if request.is_secure() else 'http://'
583         book.publish(request.user, host=protocol + request.get_host(), days=days, beta=beta)
584     except NotAuthorizedError:
585         return http.HttpResponseRedirect(reverse('apiclient_oauth' if not beta else 'apiclient_beta_oauth'))
586     except BaseException, e:
587         return http.HttpResponse(repr(e))
588     else:
589         return http.HttpResponseRedirect(book.get_absolute_url())
590
591
592 @require_POST
593 @login_required
594 def publish_image(request, slug):
595     image = get_object_or_404(Image, slug=slug)
596     if not image.accessible(request):
597         return HttpResponseForbidden("Not authorized.")
598
599     try:
600         image.publish(request.user)
601     except NotAuthorizedError:
602         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
603     except BaseException, e:
604         return http.HttpResponse(e)
605     else:
606         return http.HttpResponseRedirect(image.get_absolute_url())
607
608
609 class GalleryView(UploadView):
610     def get_object(self, request, slug):
611         book = get_object_or_404(Book, slug=slug)
612         if not book.gallery:
613             raise Http404
614         return book
615
616     def breadcrumbs(self):
617         return [
618             (_('books'), reverse('catalogue_document_list')),
619             (self.object.title, self.object.get_absolute_url()),
620             (_('scan gallery'),),
621         ]
622
623     def get_directory(self):
624         return "%s%s/" % (settings.IMAGE_DIR, self.object.gallery)
625
626
627 def active_users_list(request):
628     since = date(date.today().year, 1, 1)
629     by_user = defaultdict(lambda: 0)
630     by_email = defaultdict(lambda: 0)
631     names_by_email = defaultdict(set)
632     for change_model in (Chunk.change_model, Image.change_model):
633         for c in change_model.objects.filter(
634                 created_at__gte=since).order_by(
635                 'author', 'author_email', 'author_name').values(
636                 'author', 'author_name', 'author_email').annotate(
637                 c=Count('author'), ce=Count('author_email')).distinct():
638             if c['author']:
639                 by_user[c['author']] += c['c']
640             else:
641                 by_email[c['author_email']] += c['ce']
642                 if c['author_name'].strip():
643                     names_by_email[c['author_email']].add(c['author_name'])
644     for user in User.objects.filter(pk__in=by_user):
645         by_email[user.email] += by_user[user.pk]
646         names_by_email[user.email].add("%s %s" % (user.first_name, user.last_name))
647
648     active_users = []
649     for email, count in by_email.items():
650         active_users.append((email, names_by_email[email], count))
651     active_users.sort(key=lambda x: -x[2])
652     return render(request, 'catalogue/active_users_list.html', {
653         'users': active_users,
654         'since': since,
655     })
656
657
658 @user_passes_test(lambda u: u.is_superuser)
659 def mark_final(request):
660     if request.method == 'POST':
661         form = forms.MarkFinalForm(data=request.POST)
662         if form.is_valid():
663             form.save()
664             return HttpResponseRedirect(reverse('mark_final_completed'))
665     else:
666         form = forms.MarkFinalForm()
667     return render(request, 'catalogue/mark_final.html', {'form': form})
668
669
670 def mark_final_completed(request):
671     return render(request, 'catalogue/mark_final_completed.html')