apps/catalogue/views.py

   1 from datetime import datetime
   2 import logging
   3 import os
   4 from StringIO import StringIO
   5
   6 from django.contrib import auth
   7 from django.contrib.auth.models import User
   8 from django.contrib.auth.decorators import login_required
   9 from django.core.urlresolvers import reverse
  10 from django.db.models import Count, Q
  11 from django import http
  12 from django.http import Http404
  13 from django.shortcuts import get_object_or_404, render
  14 from django.utils.http import urlquote_plus
  15 from django.utils.translation import ugettext_lazy as _
  16 from django.views.decorators.http import require_POST
  17 from django.views.generic.simple import direct_to_template
  18
  19 import librarian.html
  20 import librarian.text
  21
  22 from apiclient import NotAuthorizedError
  23 from catalogue import forms
  24 from catalogue import helpers
  25 from catalogue.helpers import active_tab
  26 from catalogue.models import Book, Chunk, BookPublishRecord, ChunkPublishRecord
  27 from catalogue import xml_tools
  28
  29 #
  30 # Quick hack around caching problems, TODO: use ETags
  31 #
  32 from django.views.decorators.cache import never_cache
  33
  34 logger = logging.getLogger("fnp.catalogue")
  35
  36
  37 @active_tab('all')
  38 @never_cache
  39 def document_list(request):
  40     return render(request, 'catalogue/document_list.html')
  41
  42
  43 @never_cache
  44 def user(request, username):
  45     user = get_object_or_404(User, username=username)
  46     return render(request, 'catalogue/user_page.html', {"viewed_user": user})
  47
  48
  49 @login_required
  50 @active_tab('my')
  51 @never_cache
  52 def my(request):
  53     return render(request, 'catalogue/my_page.html', {
  54         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
  55                         key=lambda x: x[1]['time'], reverse=True),
  56         })
  57
  58
  59 @active_tab('users')
  60 def users(request):
  61     return direct_to_template(request, 'catalogue/user_list.html', extra_context={
  62         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
  63             '-count', 'last_name', 'first_name'),
  64     })
  65
  66
  67 @active_tab('activity')
  68 def activity(request):
  69     return render(request, 'catalogue/activity.html')
  70
  71
  72 @never_cache
  73 def logout_then_redirect(request):
  74     auth.logout(request)
  75     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  76
  77
  78 @active_tab('create')
  79 def create_missing(request, slug=None):
  80     if slug is None:
  81         slug = ''
  82     slug = slug.replace(' ', '-')
  83
  84     if request.method == "POST":
  85         form = forms.DocumentCreateForm(request.POST, request.FILES)
  86         if form.is_valid():
  87
  88             if request.user.is_authenticated():
  89                 creator = request.user
  90             else:
  91                 creator = None
  92             book = Book.create(
  93                 text=form.cleaned_data['text'],
  94                 creator=creator,
  95                 slug=form.cleaned_data['slug'],
  96                 title=form.cleaned_data['title'],
  97             )
  98
  99             return http.HttpResponseRedirect(reverse("wiki_editor", args=[book.slug]))
 100     else:
 101         form = forms.DocumentCreateForm(initial={
 102                 "slug": slug,
 103                 "title": slug.replace('-', ' ').title(),
 104         })
 105
 106     return direct_to_template(request, "catalogue/document_create_missing.html", extra_context={
 107         "slug": slug,
 108         "form": form,
 109     })
 110
 111
 112 @active_tab('upload')
 113 def upload(request):
 114     if request.method == "POST":
 115         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 116         if form.is_valid():
 117             import slughifi
 118
 119             if request.user.is_authenticated():
 120                 creator = request.user
 121             else:
 122                 creator = None
 123
 124             zip = form.cleaned_data['zip']
 125             skipped_list = []
 126             ok_list = []
 127             error_list = []
 128             slugs = {}
 129             existing = [book.slug for book in Book.objects.all()]
 130             for filename in zip.namelist():
 131                 if filename[-1] == '/':
 132                     continue
 133                 title = os.path.basename(filename)[:-4]
 134                 slug = slughifi(title)
 135                 if not (slug and filename.endswith('.xml')):
 136                     skipped_list.append(filename)
 137                 elif slug in slugs:
 138                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 139                 elif slug in existing:
 140                     error_list.append((filename, slug, _('Slug already used in repository.')))
 141                 else:
 142                     try:
 143                         zip.read(filename).decode('utf-8') # test read
 144                         ok_list.append((filename, slug, title))
 145                     except UnicodeDecodeError:
 146                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 147                     slugs[slug] = filename
 148
 149             if not error_list:
 150                 for filename, slug, title in ok_list:
 151                     book = Book.create(
 152                         text=zip.read(filename).decode('utf-8'),
 153                         creator=creator,
 154                         slug=slug,
 155                         title=title,
 156                     )
 157
 158             return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 159                 "form": form,
 160                 "ok_list": ok_list,
 161                 "skipped_list": skipped_list,
 162                 "error_list": error_list,
 163             })
 164     else:
 165         form = forms.DocumentsUploadForm()
 166
 167     return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 168         "form": form,
 169     })
 170
 171
 172 @never_cache
 173 def book_xml(request, slug):
 174     xml = get_object_or_404(Book, slug=slug).materialize()
 175
 176     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
 177     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 178     return response
 179
 180
 181 @never_cache
 182 def book_txt(request, slug):
 183     xml = get_object_or_404(Book, slug=slug).materialize()
 184     output = StringIO()
 185     # errors?
 186     librarian.text.transform(StringIO(xml), output)
 187     text = output.getvalue()
 188     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
 189     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 190     return response
 191
 192
 193 @never_cache
 194 def book_html(request, slug):
 195     xml = get_object_or_404(Book, slug=slug).materialize()
 196     output = StringIO()
 197     # errors?
 198     librarian.html.transform(StringIO(xml), output, parse_dublincore=False,
 199                              flags=['full-page'])
 200     html = output.getvalue()
 201     response = http.HttpResponse(html, content_type='text/html', mimetype='text/html')
 202     return response
 203
 204
 205 @never_cache
 206 def revision(request, slug, chunk=None):
 207     try:
 208         doc = Chunk.get(slug, chunk)
 209     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 210         raise Http404
 211     return http.HttpResponse(str(doc.revision()))
 212
 213
 214 def book(request, slug):
 215     book = get_object_or_404(Book, slug=slug)
 216
 217     # TODO: most of this should go somewhere else
 218
 219     # do we need some automation?
 220     first_master = None
 221     chunks = []
 222     need_fixing = False
 223     choose_master = False
 224
 225     length = book.chunk_set.count()
 226     for i, chunk in enumerate(book):
 227         chunk_dict = {
 228             "chunk": chunk,
 229             "fix": [],
 230             "grade": ""
 231             }
 232         graded = xml_tools.GradedText(chunk.materialize())
 233         if graded.is_wl():
 234             master = graded.master()
 235             if first_master is None:
 236                 first_master = master
 237             elif master != first_master:
 238                 chunk_dict['fix'].append('bad-master')
 239
 240             if i > 0 and not graded.has_trim_begin():
 241                 chunk_dict['fix'].append('trim-begin')
 242             if i < length - 1 and not graded.has_trim_end():
 243                 chunk_dict['fix'].append('trim-end')
 244
 245             if chunk_dict['fix']:
 246                 chunk_dict['grade'] = 'wl-fix'
 247             else:
 248                 chunk_dict['grade'] = 'wl'
 249
 250         elif graded.is_broken_wl():
 251             chunk_dict['grade'] = 'wl-broken'
 252         elif graded.is_xml():
 253             chunk_dict['grade'] = 'xml'
 254         else:
 255             chunk_dict['grade'] = 'plain'
 256             chunk_dict['fix'].append('wl')
 257             choose_master = True
 258
 259         if chunk_dict['fix']:
 260             need_fixing = True
 261         chunks.append(chunk_dict)
 262
 263     if first_master or not need_fixing:
 264         choose_master = False
 265
 266     if request.method == "POST":
 267         form = forms.ChooseMasterForm(request.POST)
 268         if not choose_master or form.is_valid():
 269             if choose_master:
 270                 first_master = form.cleaned_data['master']
 271
 272             # do the actual fixing
 273             for c in chunks:
 274                 if not c['fix']:
 275                     continue
 276
 277                 text = c['chunk'].materialize()
 278                 for fix in c['fix']:
 279                     if fix == 'bad-master':
 280                         text = xml_tools.change_master(text, first_master)
 281                     elif fix == 'trim-begin':
 282                         text = xml_tools.add_trim_begin(text)
 283                     elif fix == 'trim-end':
 284                         text = xml_tools.add_trim_end(text)
 285                     elif fix == 'wl':
 286                         text = xml_tools.basic_structure(text, first_master)
 287                 author = request.user if request.user.is_authenticated() else None
 288                 description = "auto-fix: " + ", ".join(c['fix'])
 289                 c['chunk'].commit(text=text, author=author,
 290                     description=description)
 291
 292             return http.HttpResponseRedirect(book.get_absolute_url())
 293     elif choose_master:
 294         form = forms.ChooseMasterForm()
 295     else:
 296         form = None
 297
 298     try:
 299         book.assert_publishable()
 300     except AssertionError, e:
 301         publishable = False
 302         publishable_error = e
 303     else:
 304         publishable = True
 305         publishable_error = None
 306
 307     return direct_to_template(request, "catalogue/book_detail.html", extra_context={
 308         "book": book,
 309         "publishable": publishable,
 310         "publishable_error": publishable_error,
 311         "chunks": chunks,
 312         "need_fixing": need_fixing,
 313         "choose_master": choose_master,
 314         "first_master": first_master,
 315         "form": form,
 316     })
 317
 318
 319 def chunk_add(request, slug, chunk):
 320     try:
 321         doc = Chunk.get(slug, chunk)
 322     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 323         raise Http404
 324
 325     if request.method == "POST":
 326         form = forms.ChunkAddForm(request.POST, instance=doc)
 327         if form.is_valid():
 328             if request.user.is_authenticated():
 329                 creator = request.user
 330             else:
 331                 creator = None
 332             doc.split(creator=creator,
 333                 slug=form.cleaned_data['slug'],
 334                 title=form.cleaned_data['title'],
 335             )
 336
 337             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 338     else:
 339         form = forms.ChunkAddForm(initial={
 340                 "slug": str(doc.number + 1),
 341                 "title": "cz. %d" % (doc.number + 1, ),
 342         })
 343
 344     return direct_to_template(request, "catalogue/chunk_add.html", extra_context={
 345         "chunk": doc,
 346         "form": form,
 347     })
 348
 349
 350 def chunk_edit(request, slug, chunk):
 351     try:
 352         doc = Chunk.get(slug, chunk)
 353     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 354         raise Http404
 355     if request.method == "POST":
 356         form = forms.ChunkForm(request.POST, instance=doc)
 357         if form.is_valid():
 358             form.save()
 359             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 360     else:
 361         form = forms.ChunkForm(instance=doc)
 362     return direct_to_template(request, "catalogue/chunk_edit.html", extra_context={
 363         "chunk": doc,
 364         "form": form,
 365     })
 366
 367
 368 def book_append(request, slug):
 369     book = get_object_or_404(Book, slug=slug)
 370     if request.method == "POST":
 371         form = forms.BookAppendForm(request.POST)
 372         if form.is_valid():
 373             append_to = form.cleaned_data['append_to']
 374             append_to.append(book)
 375             return http.HttpResponseRedirect(append_to.get_absolute_url())
 376     else:
 377         form = forms.BookAppendForm()
 378     return direct_to_template(request, "catalogue/book_append_to.html", extra_context={
 379         "book": book,
 380         "form": form,
 381     })
 382
 383
 384 def book_edit(request, slug):
 385     book = get_object_or_404(Book, slug=slug)
 386     if request.method == "POST":
 387         form = forms.BookForm(request.POST, instance=book)
 388         if form.is_valid():
 389             form.save()
 390             return http.HttpResponseRedirect(book.get_absolute_url())
 391     else:
 392         form = forms.BookForm(instance=book)
 393     return direct_to_template(request, "catalogue/book_edit.html", extra_context={
 394         "book": book,
 395         "form": form,
 396     })
 397
 398
 399 @require_POST
 400 @login_required
 401 def publish(request, slug):
 402     book = get_object_or_404(Book, slug=slug)
 403     try:
 404         book.publish(request.user)
 405     except NotAuthorizedError:
 406         return http.HttpResponseRedirect(reverse('apiclient_oauth'))
 407     except BaseException, e:
 408         return http.HttpResponse(e)
 409     else:
 410         return http.HttpResponseRedirect(book.get_absolute_url())