src/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_ng.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_bytes()
 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_bytes() 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, mobile=False):
 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     customizations = ['26pt', 'nothemes', 'nomargins', 'notoc'] if mobile else None
 276     pdf_file = doc.as_pdf(cover=True, ilustr_path=book.gallery_path(), customizations=customizations)
 277     from catalogue.ebook_utils import serve_file
 278     return serve_file(pdf_file.get_filename(),
 279                 book.slug + '.pdf', 'application/pdf')
 280
 281
 282 @never_cache
 283 def book_epub(request, slug):
 284     book = get_object_or_404(Book, slug=slug)
 285     if not book.accessible(request):
 286         return HttpResponseForbidden("Not authorized.")
 287
 288     # TODO: move to celery
 289     doc = book.wldocument()
 290     # TODO: error handling
 291     epub = doc.as_epub(ilustr_path=book.gallery_path()).get_bytes()
 292     response = HttpResponse(content_type='application/epub+zip')
 293     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.epub'
 294     response.write(epub)
 295     return response
 296
 297
 298 @never_cache
 299 def book_mobi(request, slug):
 300     book = get_object_or_404(Book, slug=slug)
 301     if not book.accessible(request):
 302         return HttpResponseForbidden("Not authorized.")
 303
 304     # TODO: move to celery
 305     doc = book.wldocument()
 306     # TODO: error handling
 307     mobi = doc.as_mobi(ilustr_path=book.gallery_path()).get_bytes()
 308     response = HttpResponse(content_type='application/x-mobipocket-ebook')
 309     response['Content-Disposition'] = 'attachment; filename=%s' % book.slug + '.mobi'
 310     response.write(mobi)
 311     return response
 312
 313
 314 @never_cache
 315 def revision(request, slug, chunk=None):
 316     try:
 317         doc = Chunk.get(slug, chunk)
 318     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 319         raise Http404
 320     if not doc.book.accessible(request):
 321         return HttpResponseForbidden("Not authorized.")
 322     return http.HttpResponse(str(doc.revision()))
 323
 324
 325 def book(request, slug):
 326     book = get_object_or_404(Book, slug=slug)
 327     if not book.accessible(request):
 328         return HttpResponseForbidden("Not authorized.")
 329
 330     if request.user.has_perm('catalogue.change_book'):
 331         if request.method == "POST":
 332             form = forms.BookForm(request.POST, instance=book)
 333             if form.is_valid():
 334                 form.save()
 335                 return http.HttpResponseRedirect(book.get_absolute_url())
 336         else:
 337             form = forms.BookForm(instance=book)
 338         publish_options_form = forms.PublishOptionsForm()
 339         editable = True
 340     else:
 341         form = forms.ReadonlyBookForm(instance=book)
 342         publish_options_form = forms.PublishOptionsForm()
 343         editable = False
 344
 345     publish_error = book.publishable_error()
 346     publishable = publish_error is None
 347
 348     return render(request, "catalogue/book_detail.html", {
 349         "book": book,
 350         "publishable": publishable,
 351         "publishable_error": publish_error,
 352         "form": form,
 353         "publish_options_form": publish_options_form,
 354         "editable": editable,
 355     })
 356
 357
 358 def image(request, slug):
 359     image = get_object_or_404(Image, slug=slug)
 360     if not image.accessible(request):
 361         return HttpResponseForbidden("Not authorized.")
 362
 363     if request.user.has_perm('catalogue.change_image'):
 364         if request.method == "POST":
 365             form = forms.ImageForm(request.POST, instance=image)
 366             if form.is_valid():
 367                 form.save()
 368                 return http.HttpResponseRedirect(image.get_absolute_url())
 369         else:
 370             form = forms.ImageForm(instance=image)
 371         editable = True
 372     else:
 373         form = forms.ReadonlyImageForm(instance=image)
 374         editable = False
 375
 376     publish_error = image.publishable_error()
 377     publishable = publish_error is None
 378
 379     return render(request, "catalogue/image_detail.html", {
 380         "object": image,
 381         "publishable": publishable,
 382         "publishable_error": publish_error,
 383         "form": form,
 384         "editable": editable,
 385     })
 386
 387
 388 @permission_required('catalogue.add_chunk')
 389 def chunk_add(request, slug, chunk):
 390     try:
 391         doc = Chunk.get(slug, chunk)
 392     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 393         raise Http404
 394     if not doc.book.accessible(request):
 395         return HttpResponseForbidden("Not authorized.")
 396
 397     if request.method == "POST":
 398         form = forms.ChunkAddForm(request.POST, instance=doc)
 399         if form.is_valid():
 400             if request.user.is_authenticated():
 401                 creator = request.user
 402             else:
 403                 creator = None
 404             doc.split(creator=creator,
 405                 slug=form.cleaned_data['slug'],
 406                 title=form.cleaned_data['title'],
 407                 gallery_start=form.cleaned_data['gallery_start'],
 408                 user=form.cleaned_data['user'],
 409                 stage=form.cleaned_data['stage']
 410             )
 411
 412             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 413     else:
 414         form = forms.ChunkAddForm(initial={
 415                 "slug": str(doc.number + 1),
 416                 "title": "cz. %d" % (doc.number + 1, ),
 417         })
 418
 419     return render(request, "catalogue/chunk_add.html", {
 420         "chunk": doc,
 421         "form": form,
 422     })
 423
 424
 425 @login_required
 426 def chunk_edit(request, slug, chunk):
 427     try:
 428         doc = Chunk.get(slug, chunk)
 429     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 430         raise Http404
 431     if not doc.book.accessible(request):
 432         return HttpResponseForbidden("Not authorized.")
 433
 434     if request.method == "POST":
 435         form = forms.ChunkForm(request.POST, instance=doc)
 436         if form.is_valid():
 437             form.save()
 438             go_next = request.GET.get('next', None)
 439             if go_next:
 440                 go_next = urlquote_plus(unquote(iri_to_uri(go_next)), safe='/?=&')
 441             else:
 442                 go_next = doc.book.get_absolute_url()
 443             return http.HttpResponseRedirect(go_next)
 444     else:
 445         form = forms.ChunkForm(instance=doc)
 446
 447     referer = request.META.get('HTTP_REFERER')
 448     if referer:
 449         parts = urlsplit(referer)
 450         parts = ['', ''] + list(parts[2:])
 451         go_next = urlquote_plus(urlunsplit(parts))
 452     else:
 453         go_next = ''
 454
 455     return render(request, "catalogue/chunk_edit.html", {
 456         "chunk": doc,
 457         "form": form,
 458         "go_next": go_next,
 459     })
 460
 461
 462 @transaction.atomic
 463 @login_required
 464 @require_POST
 465 def chunk_mass_edit(request):
 466     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 467     chunks = map(lambda i: Chunk.objects.get(id=i), ids)
 468
 469     stage = request.POST.get('stage')
 470     if stage:
 471         try:
 472             stage = Chunk.tag_model.objects.get(slug=stage)
 473         except Chunk.DoesNotExist, e:
 474             stage = None
 475
 476         for c in chunks: c.stage = stage
 477
 478     username = request.POST.get('user')
 479     logger.info("username: %s" % username)
 480     logger.info(request.POST)
 481     if username:
 482         try:
 483             user = User.objects.get(username=username)
 484         except User.DoesNotExist, e:
 485             user = None
 486
 487         for c in chunks: c.user = user
 488
 489     project_id = request.POST.get('project')
 490     if project_id:
 491         try:
 492             project = Project.objects.get(pk=int(project_id))
 493         except (Project.DoesNotExist, ValueError), e:
 494             project = None
 495         for c in chunks:
 496             book = c.book
 497             book.project = project
 498             book.save()
 499
 500     for c in chunks: c.save()
 501
 502     return HttpResponse("", content_type="text/plain")
 503
 504
 505 @transaction.atomic
 506 @login_required
 507 @require_POST
 508 def image_mass_edit(request):
 509     ids = map(int, filter(lambda i: i.strip()!='', request.POST.get('ids').split(',')))
 510     images = map(lambda i: Image.objects.get(id=i), ids)
 511
 512     stage = request.POST.get('stage')
 513     if stage:
 514         try:
 515             stage = Image.tag_model.objects.get(slug=stage)
 516         except Image.DoesNotExist, e:
 517             stage = None
 518
 519         for c in images: c.stage = stage
 520
 521     username = request.POST.get('user')
 522     logger.info("username: %s" % username)
 523     logger.info(request.POST)
 524     if username:
 525         try:
 526             user = User.objects.get(username=username)
 527         except User.DoesNotExist, e:
 528             user = None
 529
 530         for c in images: c.user = user
 531
 532     project_id = request.POST.get('project')
 533     if project_id:
 534         try:
 535             project = Project.objects.get(pk=int(project_id))
 536         except (Project.DoesNotExist, ValueError), e:
 537             project = None
 538         for c in images:
 539             c.project = project
 540
 541     for c in images: c.save()
 542
 543     return HttpResponse("", content_type="text/plain")
 544
 545
 546 @permission_required('catalogue.change_book')
 547 def book_append(request, slug):
 548     book = get_object_or_404(Book, slug=slug)
 549     if not book.accessible(request):
 550         return HttpResponseForbidden("Not authorized.")
 551
 552     if request.method == "POST":
 553         form = forms.BookAppendForm(book, request.POST)
 554         if form.is_valid():
 555             append_to = form.cleaned_data['append_to']
 556             append_to.append(book)
 557             return http.HttpResponseRedirect(append_to.get_absolute_url())
 558     else:
 559         form = forms.BookAppendForm(book)
 560     return render(request, "catalogue/book_append_to.html", {
 561         "book": book,
 562         "form": form,
 563
 564         "logout_to": '/',
 565     })
 566
 567
 568 @require_POST
 569 @login_required
 570 def publish(request, slug):
 571     form = forms.PublishOptionsForm(request.POST)
 572     if form.is_valid():
 573         days = form.cleaned_data['days']
 574         beta = form.cleaned_data['beta']
 575     else:
 576         days = 0
 577         beta = False
 578     book = get_object_or_404(Book, slug=slug)
 579     if not book.accessible(request):
 580         return HttpResponseForbidden("Not authorized.")
 581
 582     try:
 583         protocol = 'https://' if request.is_secure() else 'http://'
 584         book.publish(request.user, host=protocol + request.get_host(), days=days, beta=beta)
 585     except NotAuthorizedError:
 586         return http.HttpResponseRedirect(reverse('apiclient_oauth' if not beta else 'apiclient_beta_oauth'))
 587     except BaseException, e:
 588         return http.HttpResponse(repr(e))
 589     else:
 590         return http.HttpResponseRedirect(book.get_absolute_url())
 591
 592
 593 @require_POST
 594 @login_required
 595 def publish_image(request, slug):
 596     image = get_object_or_404(Image, slug=slug)
 597     if not image.accessible(request):
 598         return HttpResponseForbidden("Not authorized.")
 599
 600     try:
 601         image.publish(request.user)
 602     except NotAuthorizedError:
 603         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 604     except BaseException, e:
 605         return http.HttpResponse(e)
 606     else:
 607         return http.HttpResponseRedirect(image.get_absolute_url())
 608
 609
 610 class GalleryView(UploadView):
 611     def get_object(self, request, slug):
 612         book = get_object_or_404(Book, slug=slug)
 613         if not book.gallery:
 614             raise Http404
 615         return book
 616
 617     def breadcrumbs(self):
 618         return [
 619             (_('books'), reverse('catalogue_document_list')),
 620             (self.object.title, self.object.get_absolute_url()),
 621             (_('scan gallery'),),
 622         ]
 623
 624     def get_directory(self):
 625         return "%s%s/" % (settings.IMAGE_DIR, self.object.gallery)
 626
 627
 628 def active_users_list(request):
 629     since = date(date.today().year, 1, 1)
 630     by_user = defaultdict(lambda: 0)
 631     by_email = defaultdict(lambda: 0)
 632     names_by_email = defaultdict(set)
 633     for change_model in (Chunk.change_model, Image.change_model):
 634         for c in change_model.objects.filter(
 635                 created_at__gte=since).order_by(
 636                 'author', 'author_email', 'author_name').values(
 637                 'author', 'author_name', 'author_email').annotate(
 638                 c=Count('author'), ce=Count('author_email')).distinct():
 639             if c['author']:
 640                 by_user[c['author']] += c['c']
 641             else:
 642                 by_email[c['author_email']] += c['ce']
 643                 if c['author_name'].strip():
 644                     names_by_email[c['author_email']].add(c['author_name'])
 645     for user in User.objects.filter(pk__in=by_user):
 646         by_email[user.email] += by_user[user.pk]
 647         names_by_email[user.email].add("%s %s" % (user.first_name, user.last_name))
 648
 649     active_users = []
 650     for email, count in by_email.items():
 651         active_users.append((email, names_by_email[email], count))
 652     active_users.sort(key=lambda x: -x[2])
 653     return render(request, 'catalogue/active_users_list.html', {
 654         'users': active_users,
 655         'since': since,
 656     })
 657
 658
 659 @user_passes_test(lambda u: u.is_superuser)
 660 def mark_final(request):
 661     if request.method == 'POST':
 662         form = forms.MarkFinalForm(data=request.POST)
 663         if form.is_valid():
 664             form.save()
 665             return HttpResponseRedirect(reverse('mark_final_completed'))
 666     else:
 667         form = forms.MarkFinalForm()
 668     return render(request, 'catalogue/mark_final.html', {'form': form})
 669
 670
 671 def mark_final_completed(request):
 672     return render(request, 'catalogue/mark_final_completed.html')