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