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