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.objects.create(
  92                 slug=form.cleaned_data['slug'],
  93                 title=form.cleaned_data['title'],
  94             )
  95             book.chunk_set.all().update(creator=creator)
  96             book[0].commit(text=form.cleaned_data['text'], author=creator)
  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.create(creator=creator,
 151                         slug=slug,
 152                         title=title,
 153                         text=zip.read(filename).decode('utf-8'),
 154                     )
 155
 156             return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 157                 "form": form,
 158                 "ok_list": ok_list,
 159                 "skipped_list": skipped_list,
 160                 "error_list": error_list,
 161             })
 162     else:
 163         form = forms.DocumentsUploadForm()
 164
 165     return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 166         "form": form,
 167     })
 168
 169
 170 @never_cache
 171 def book_xml(request, slug):
 172     xml = get_object_or_404(Book, slug=slug).materialize()
 173
 174     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
 175     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 176     return response
 177
 178
 179 @never_cache
 180 def book_txt(request, slug):
 181     xml = get_object_or_404(Book, slug=slug).materialize()
 182     output = StringIO()
 183     # errors?
 184     librarian.text.transform(StringIO(xml), output)
 185     text = output.getvalue()
 186     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
 187     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 188     return response
 189
 190
 191 @never_cache
 192 def book_html(request, slug):
 193     xml = get_object_or_404(Book, slug=slug).materialize()
 194     output = StringIO()
 195     # errors?
 196     librarian.html.transform(StringIO(xml), output, parse_dublincore=False,
 197                              flags=['full-page'])
 198     html = output.getvalue()
 199     response = http.HttpResponse(html, content_type='text/html', mimetype='text/html')
 200     return response
 201
 202
 203 @never_cache
 204 def revision(request, slug, chunk=None):
 205     try:
 206         doc = Chunk.get(slug, chunk)
 207     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 208         raise Http404
 209     return http.HttpResponse(str(doc.revision()))
 210
 211
 212 def book(request, slug):
 213     book = get_object_or_404(Book, slug=slug)
 214
 215     # TODO: most of this should go somewhere else
 216
 217     # do we need some automation?
 218     first_master = None
 219     chunks = []
 220     need_fixing = False
 221     choose_master = False
 222
 223     length = book.chunk_set.count()
 224     for i, chunk in enumerate(book):
 225         chunk_dict = {
 226             "chunk": chunk,
 227             "fix": [],
 228             "grade": ""
 229             }
 230         graded = xml_tools.GradedText(chunk.materialize())
 231         if graded.is_wl():
 232             master = graded.master()
 233             if first_master is None:
 234                 first_master = master
 235             elif master != first_master:
 236                 chunk_dict['fix'].append('bad-master')
 237
 238             if i > 0 and not graded.has_trim_begin():
 239                 chunk_dict['fix'].append('trim-begin')
 240             if i < length - 1 and not graded.has_trim_end():
 241                 chunk_dict['fix'].append('trim-end')
 242
 243             if chunk_dict['fix']:
 244                 chunk_dict['grade'] = 'wl-fix'
 245             else:
 246                 chunk_dict['grade'] = 'wl'
 247
 248         elif graded.is_broken_wl():
 249             chunk_dict['grade'] = 'wl-broken'
 250         elif graded.is_xml():
 251             chunk_dict['grade'] = 'xml'
 252         else:
 253             chunk_dict['grade'] = 'plain'
 254             chunk_dict['fix'].append('wl')
 255             choose_master = True
 256
 257         if chunk_dict['fix']:
 258             need_fixing = True
 259         chunks.append(chunk_dict)
 260
 261     if first_master or not need_fixing:
 262         choose_master = False
 263
 264     if request.method == "POST":
 265         form = forms.ChooseMasterForm(request.POST)
 266         if not choose_master or form.is_valid():
 267             if choose_master:
 268                 first_master = form.cleaned_data['master']
 269
 270             # do the actual fixing
 271             for c in chunks:
 272                 if not c['fix']:
 273                     continue
 274
 275                 text = c['chunk'].materialize()
 276                 for fix in c['fix']:
 277                     if fix == 'bad-master':
 278                         text = xml_tools.change_master(text, first_master)
 279                     elif fix == 'trim-begin':
 280                         text = xml_tools.add_trim_begin(text)
 281                     elif fix == 'trim-end':
 282                         text = xml_tools.add_trim_end(text)
 283                     elif fix == 'wl':
 284                         text = xml_tools.basic_structure(text, first_master)
 285                 author = request.user if request.user.is_authenticated() else None
 286                 description = "auto-fix: " + ", ".join(c['fix'])
 287                 c['chunk'].commit(text=text, author=author,
 288                     description=description)
 289
 290             return http.HttpResponseRedirect(book.get_absolute_url())
 291     elif choose_master:
 292         form = forms.ChooseMasterForm()
 293     else:
 294         form = None
 295
 296     return direct_to_template(request, "catalogue/book_detail.html", extra_context={
 297         "book": book,
 298         "chunks": chunks,
 299         "need_fixing": need_fixing,
 300         "choose_master": choose_master,
 301         "first_master": first_master,
 302         "form": form,
 303     })
 304
 305
 306 def chunk_add(request, slug, chunk):
 307     try:
 308         doc = Chunk.get(slug, chunk)
 309     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 310         raise Http404
 311
 312     if request.method == "POST":
 313         form = forms.ChunkAddForm(request.POST, instance=doc)
 314         if form.is_valid():
 315             if request.user.is_authenticated():
 316                 creator = request.user
 317             else:
 318                 creator = None
 319             doc.split(creator=creator,
 320                 slug=form.cleaned_data['slug'],
 321                 title=form.cleaned_data['title'],
 322             )
 323
 324             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 325     else:
 326         form = forms.ChunkAddForm(initial={
 327                 "slug": str(doc.number + 1),
 328                 "title": "cz. %d" % (doc.number + 1, ),
 329         })
 330
 331     return direct_to_template(request, "catalogue/chunk_add.html", extra_context={
 332         "chunk": doc,
 333         "form": form,
 334     })
 335
 336
 337 def chunk_edit(request, slug, chunk):
 338     try:
 339         doc = Chunk.get(slug, chunk)
 340     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 341         raise Http404
 342     if request.method == "POST":
 343         form = forms.ChunkForm(request.POST, instance=doc)
 344         if form.is_valid():
 345             form.save()
 346             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 347     else:
 348         form = forms.ChunkForm(instance=doc)
 349     return direct_to_template(request, "catalogue/chunk_edit.html", extra_context={
 350         "chunk": doc,
 351         "form": form,
 352     })
 353
 354
 355 def book_append(request, slug):
 356     book = get_object_or_404(Book, slug=slug)
 357     if request.method == "POST":
 358         form = forms.BookAppendForm(request.POST)
 359         if form.is_valid():
 360             append_to = form.cleaned_data['append_to']
 361             append_to.append(book)
 362             return http.HttpResponseRedirect(append_to.get_absolute_url())
 363     else:
 364         form = forms.BookAppendForm()
 365     return direct_to_template(request, "catalogue/book_append_to.html", extra_context={
 366         "book": book,
 367         "form": form,
 368     })
 369
 370
 371 def book_edit(request, slug):
 372     book = get_object_or_404(Book, slug=slug)
 373     if request.method == "POST":
 374         form = forms.BookForm(request.POST, instance=book)
 375         if form.is_valid():
 376             form.save()
 377             return http.HttpResponseRedirect(book.get_absolute_url())
 378     else:
 379         form = forms.BookForm(instance=book)
 380     return direct_to_template(request, "catalogue/book_edit.html", extra_context={
 381         "book": book,
 382         "form": form,
 383     })
 384
 385
 386 @require_POST
 387 @login_required
 388 def publish(request, slug):
 389     book = get_object_or_404(Book, slug=slug)
 390     try:
 391         book.publish(request.user)
 392     except BaseException, e:
 393         return http.HttpResponse(e)
 394     else:
 395         return http.HttpResponseRedirect(book.get_absolute_url())