apps/catalogue/views.py

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