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     if not book.accessible(request):
 209         return HttpResponseForbidden("Not authorized.")
 210     xml = book.materialize()
 211     response = http.HttpResponse(xml, content_type='application/xml')
 212     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 213     return response
 214
 215
 216 @never_cache
 217 def book_xml(request, slug):
 218     book = get_object_or_404(Book, slug=slug)
 219     return serve_xml(request, book, slug)
 220
 221
 222 @never_cache
 223 def book_xml_dc(request, slug):
 224     book = get_object_or_404(Book, dc_slug=slug)
 225     return serve_xml(request, book, slug)
 226
 227
 228 @never_cache
 229 def book_txt(request, slug):
 230     book = get_object_or_404(Book, slug=slug)
 231     if not book.accessible(request):
 232         return HttpResponseForbidden("Not authorized.")
 233
 234     doc = book.wldocument()
 235     text = doc.as_text().get_string()
 236     response = http.HttpResponse(text, content_type='text/plain')
 237     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 238     return response
 239
 240
 241 @never_cache
 242 def book_html(request, slug):
 243     book = get_object_or_404(Book, slug=slug)
 244     if not book.accessible(request):
 245         return HttpResponseForbidden("Not authorized.")
 246
 247     doc = book.wldocument(parse_dublincore=False)
 248     html = doc.as_html(options={'gallery': "'%s'" % book.gallery_url()})
 249
 250     html = html.get_string() if html is not None else ''
 251     # response = http.HttpResponse(html, content_type='text/html')
 252     # return response
 253     # book_themes = {}
 254     # for fragment in book.fragments.all().iterator():
 255     #     for theme in fragment.tags.filter(category='theme').iterator():
 256     #         book_themes.setdefault(theme, []).append(fragment)
 257
 258     # book_themes = book_themes.items()
 259     # book_themes.sort(key=lambda s: s[0].sort_key)
 260     return render(request, 'catalogue/book_text.html', locals())
 261
 262
 263 @never_cache
 264 def book_pdf(request, slug):
 265     book = get_object_or_404(Book, slug=slug)
 266     if not book.accessible(request):
 267         return HttpResponseForbidden("Not authorized.")
 268
 269     # TODO: move to celery
 270     doc = book.wldocument()
 271     # TODO: error handling
 272     pdf_file = doc.as_pdf(cover=True, ilustr_path=book.gallery_path())
 273     from catalogue.ebook_utils import serve_file
 274     return serve_file(pdf_file.get_filename(),
 275                 book.slug + '.pdf', 'application/pdf')
 276
 277
 278 @never_cache
 279 def book_epub(request, slug):
 280     book = get_object_or_404(Book, slug=slug)
 281     if not book.accessible(request):
 282         return HttpResponseForbidden("Not authorized.")
 283
 284     # TODO: move to celery
 285     doc = book.wldocument()
 286     # TODO: error handling
 287     epub = doc.as_epub(ilustr_path=book.gallery_path()).get_string()
 288     response = HttpResponse(content_type='application/epub+zip')
 289     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 290     response.write(epub)
 291     return response
 292
 293
 294 @never_cache
 295 def book_mobi(request, slug):
 296     book = get_object_or_404(Book, slug=slug)
 297     if not book.accessible(request):
 298         return HttpResponseForbidden("Not authorized.")
 299
 300     # TODO: move to celery
 301     doc = book.wldocument()
 302     # TODO: error handling
 303     mobi = doc.as_mobi(ilustr_path=book.gallery_path()).get_string()
 304     response = HttpResponse(content_type='application/x-mobipocket-ebook')
 305     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.mobi'
 306     response.write(mobi)
 307     return response
 308
 309
 310 @never_cache
 311 def revision(request, slug, chunk=None):
 312     try:
 313         doc = Chunk.get(slug, chunk)
 314     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 315         raise Http404
 316     if not doc.book.accessible(request):
 317         return HttpResponseForbidden("Not authorized.")
 318     return http.HttpResponse(str(doc.revision()))
 319
 320
 321 def book(request, slug):
 322     book = get_object_or_404(Book, slug=slug)
 323     if not book.accessible(request):
 324         return HttpResponseForbidden("Not authorized.")
 325
 326     if request.user.has_perm('catalogue.change_book'):
 327         if request.method == "POST":
 328             form = forms.BookForm(request.POST, instance=book)
 329             if form.is_valid():
 330                 form.save()
 331                 return http.HttpResponseRedirect(book.get_absolute_url())
 332         else:
 333             form = forms.BookForm(instance=book)
 334         editable = True
 335     else:
 336         form = forms.ReadonlyBookForm(instance=book)
 337         editable = False
 338
 339     publish_error = book.publishable_error()
 340     publishable = publish_error is None
 341
 342     return render(request, "catalogue/book_detail.html", {
 343         "book": book,
 344         "publishable": publishable,
 345         "publishable_error": publish_error,
 346         "form": form,
 347         "editable": editable,
 348     })
 349
 350
 351 def image(request, slug):
 352     image = get_object_or_404(Image, slug=slug)
 353     if not image.accessible(request):
 354         return HttpResponseForbidden("Not authorized.")
 355
 356     if request.user.has_perm('catalogue.change_image'):
 357         if request.method == "POST":
 358             form = forms.ImageForm(request.POST, instance=image)
 359             if form.is_valid():
 360                 form.save()
 361                 return http.HttpResponseRedirect(image.get_absolute_url())
 362         else:
 363             form = forms.ImageForm(instance=image)
 364         editable = True
 365     else:
 366         form = forms.ReadonlyImageForm(instance=image)
 367         editable = False
 368
 369     publish_error = image.publishable_error()
 370     publishable = publish_error is None
 371
 372     return render(request, "catalogue/image_detail.html", {
 373         "object": image,
 374         "publishable": publishable,
 375         "publishable_error": publish_error,
 376         "form": form,
 377         "editable": editable,
 378     })
 379
 380
 381 @permission_required('catalogue.add_chunk')
 382 def chunk_add(request, slug, chunk):
 383     try:
 384         doc = Chunk.get(slug, chunk)
 385     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 386         raise Http404
 387     if not doc.book.accessible(request):
 388         return HttpResponseForbidden("Not authorized.")
 389
 390     if request.method == "POST":
 391         form = forms.ChunkAddForm(request.POST, instance=doc)
 392         if form.is_valid():
 393             if request.user.is_authenticated():
 394                 creator = request.user
 395             else:
 396                 creator = None
 397             doc.split(creator=creator,
 398                 slug=form.cleaned_data['slug'],
 399                 title=form.cleaned_data['title'],
 400                 gallery_start=form.cleaned_data['gallery_start'],
 401                 user=form.cleaned_data['user'],
 402                 stage=form.cleaned_data['stage']
 403             )
 404
 405             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 406     else:
 407         form = forms.ChunkAddForm(initial={
 408                 "slug": str(doc.number + 1),
 409                 "title": "cz. %d" % (doc.number + 1, ),
 410         })
 411
 412     return render(request, "catalogue/chunk_add.html", {
 413         "chunk": doc,
 414         "form": form,
 415     })
 416
 417
 418 @login_required
 419 def chunk_edit(request, slug, chunk):
 420     try:
 421         doc = Chunk.get(slug, chunk)
 422     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 423         raise Http404
 424     if not doc.book.accessible(request):
 425         return HttpResponseForbidden("Not authorized.")
 426
 427     if request.method == "POST":
 428         form = forms.ChunkForm(request.POST, instance=doc)
 429         if form.is_valid():
 430             form.save()
 431             go_next = request.GET.get('next', None)
 432             if go_next:
 433                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 434             else:
 435                 go_next = doc.book.get_absolute_url()
 436             return http.HttpResponseRedirect(go_next)
 437     else:
 438         form = forms.ChunkForm(instance=doc)
 439
 440     referer = request.META.get('HTTP_REFERER')
 441     if referer:
 442         parts = urlsplit(referer)
 443         parts = ['', ''] + list(parts[2:])
 444         go_next = urlquote_plus(urlunsplit(parts))
 445     else:
 446         go_next = ''
 447
 448     return render(request, "catalogue/chunk_edit.html", {
 449         "chunk": doc,
 450         "form": form,
 451         "go_next": go_next,
 452     })
 453
 454
 455 @transaction.atomic
 456 @login_required
 457 @require_POST
 458 def chunk_mass_edit(request):
 459     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 460     chunks = map(lambda i: Chunk.objects.get(id=i), ids)
 461
 462     stage = request.POST.get('stage')
 463     if stage:
 464         try:
 465             stage = Chunk.tag_model.objects.get(slug=stage)
 466         except Chunk.DoesNotExist, e:
 467             stage = None
 468
 469         for c in chunks: c.stage = stage
 470
 471     username = request.POST.get('user')
 472     logger.info("username: %s" % username)
 473     logger.info(request.POST)
 474     if username:
 475         try:
 476             user = User.objects.get(username=username)
 477         except User.DoesNotExist, e:
 478             user = None
 479
 480         for c in chunks: c.user = user
 481
 482     project_id = request.POST.get('project')
 483     if project_id:
 484         try:
 485             project = Project.objects.get(pk=int(project_id))
 486         except (Project.DoesNotExist, ValueError), e:
 487             project = None
 488         for c in chunks:
 489             book = c.book
 490             book.project = project
 491             book.save()
 492
 493     for c in chunks: c.save()
 494
 495     return HttpResponse("", content_type="text/plain")
 496
 497
 498 @transaction.atomic
 499 @login_required
 500 @require_POST
 501 def image_mass_edit(request):
 502     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 503     images = map(lambda i: Image.objects.get(id=i), ids)
 504
 505     stage = request.POST.get('stage')
 506     if stage:
 507         try:
 508             stage = Image.tag_model.objects.get(slug=stage)
 509         except Image.DoesNotExist, e:
 510             stage = None
 511
 512         for c in images: c.stage = stage
 513
 514     username = request.POST.get('user')
 515     logger.info("username: %s" % username)
 516     logger.info(request.POST)
 517     if username:
 518         try:
 519             user = User.objects.get(username=username)
 520         except User.DoesNotExist, e:
 521             user = None
 522
 523         for c in images: c.user = user
 524
 525     project_id = request.POST.get('project')
 526     if project_id:
 527         try:
 528             project = Project.objects.get(pk=int(project_id))
 529         except (Project.DoesNotExist, ValueError), e:
 530             project = None
 531         for c in images:
 532             c.project = project
 533
 534     for c in images: c.save()
 535
 536     return HttpResponse("", content_type="text/plain")
 537
 538
 539 @permission_required('catalogue.change_book')
 540 def book_append(request, slug):
 541     book = get_object_or_404(Book, slug=slug)
 542     if not book.accessible(request):
 543         return HttpResponseForbidden("Not authorized.")
 544
 545     if request.method == "POST":
 546         form = forms.BookAppendForm(book, request.POST)
 547         if form.is_valid():
 548             append_to = form.cleaned_data['append_to']
 549             append_to.append(book)
 550             return http.HttpResponseRedirect(append_to.get_absolute_url())
 551     else:
 552         form = forms.BookAppendForm(book)
 553     return render(request, "catalogue/book_append_to.html", {
 554         "book": book,
 555         "form": form,
 556
 557         "logout_to": '/',
 558     })
 559
 560
 561 @require_POST
 562 @login_required
 563 def publish(request, slug):
 564     book = get_object_or_404(Book, slug=slug)
 565     if not book.accessible(request):
 566         return HttpResponseForbidden("Not authorized.")
 567
 568     try:
 569         protocol = 'https://' if request.is_secure() else 'http://'
 570         book.publish(request.user, host=protocol + request.get_host())
 571     except NotAuthorizedError:
 572         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 573     except BaseException, e:
 574         return http.HttpResponse(e)
 575     else:
 576         return http.HttpResponseRedirect(book.get_absolute_url())
 577
 578
 579 @require_POST
 580 @login_required
 581 def publish_image(request, slug):
 582     image = get_object_or_404(Image, slug=slug)
 583     if not image.accessible(request):
 584         return HttpResponseForbidden("Not authorized.")
 585
 586     try:
 587         image.publish(request.user)
 588     except NotAuthorizedError:
 589         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 590     except BaseException, e:
 591         return http.HttpResponse(e)
 592     else:
 593         return http.HttpResponseRedirect(image.get_absolute_url())
 594
 595
 596 class GalleryView(UploadView):
 597     def get_object(self, request, slug):
 598         book = get_object_or_404(Book, slug=slug)
 599         if not book.gallery:
 600             raise Http404
 601         return book
 602
 603     def breadcrumbs(self):
 604         return [
 605             (_('books'), reverse('catalogue_document_list')),
 606             (self.object.title, self.object.get_absolute_url()),
 607             (_('scan gallery'),),
 608         ]
 609
 610     def get_directory(self):
 611         return "%s%s/" % (settings.IMAGE_DIR, self.object.gallery)
 612
 613
 614 def active_users_list(request):
 615     since = date(date.today().year, 1, 1)
 616     by_user = defaultdict(lambda: 0)
 617     by_email = defaultdict(lambda: 0)
 618     names_by_email = defaultdict(set)
 619     for change_model in (Chunk.change_model, Image.change_model):
 620         for c in change_model.objects.filter(
 621                 created_at__gte=since).order_by(
 622                 'author', 'author_email', 'author_name').values(
 623                 'author', 'author_name', 'author_email').annotate(
 624                 c=Count('author'), ce=Count('author_email')).distinct():
 625             if c['author']:
 626                 by_user[c['author']] += c['c']
 627             else:
 628                 by_email[c['author_email']] += c['ce']
 629                 if c['author_name'].strip():
 630                     names_by_email[c['author_email']].add(c['author_name'])
 631     for user in User.objects.filter(pk__in=by_user):
 632         by_email[user.email] += by_user[user.pk]
 633         names_by_email[user.email].add("%s %s" % (user.first_name, user.last_name))
 634
 635     active_users = []
 636     for email, count in by_email.items():
 637         active_users.append((email, names_by_email[email], count))
 638     active_users.sort(key=lambda x: -x[2])
 639     return render(request, 'catalogue/active_users_list.html', {
 640         'users': active_users,
 641         'since': since,
 642     })
 643
 644