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 def slug_filter(qs, value, filter_field, model, model_field='slug', unset=''):
  38     if value == unset:
  39         return qs.filter(**{filter_field: None})
  40     if value is None:
  41         return qs
  42     try:
  43         obj = model._default_manager.get(**{model_field: value})
  44     except model.DoesNotExist:
  45         return qs.none()
  46     else:
  47         return qs.filter(**{filter_field: obj})
  48
  49
  50 @active_tab('all')
  51 @never_cache
  52 def document_list(request, filters=None):
  53     chunks = Chunk.objects.order_by('book__title', 'book', 'number')
  54
  55     chunks = slug_filter(chunks, request.GET.get('user', None), 'user', User, 'username')
  56     chunks = slug_filter(chunks, request.GET.get('stage', None), 'stage', Chunk.tag_model, 'slug')
  57
  58     chunks_list = helpers.ChunksList(chunks)
  59
  60     return direct_to_template(request, 'catalogue/document_list.html', extra_context={
  61         'books': chunks_list,
  62         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
  63                         key=lambda x: x[1]['time'], reverse=True),
  64         'stages': Chunk.tag_model.objects.all(),
  65         'users': User.objects.annotate(count=Count('chunk')).order_by('-count', 'last_name', 'first_name'),
  66     })
  67
  68
  69 @active_tab('unassigned')
  70 @never_cache
  71 def unassigned(request):
  72     chunks_list = helpers.ChunksList(Chunk.objects.filter(
  73         user=None).order_by('book__title', 'book__id', 'number'))
  74
  75     return direct_to_template(request, 'catalogue/document_list.html', extra_context={
  76         'books': chunks_list,
  77         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
  78                         key=lambda x: x[1]['time'], reverse=True),
  79     })
  80
  81
  82 @never_cache
  83 def user(request, username=None):
  84     if username is None:
  85         if request.user.is_authenticated():
  86             user = request.user
  87         else:
  88             raise Http404
  89     else:
  90         user = get_object_or_404(User, username=username)
  91
  92     chunks_list = helpers.ChunksList(Chunk.objects.filter(
  93         user=user).order_by('book__title', 'book', 'number'))
  94
  95     return direct_to_template(request, 'catalogue/document_list.html', extra_context={
  96         'books': chunks_list,
  97         'last_books': sorted(request.session.get("wiki_last_books", {}).items(),
  98                         key=lambda x: x[1]['time'], reverse=True),
  99     })
 100 my = login_required(active_tab('my')(user))
 101
 102
 103 @active_tab('users')
 104 def users(request):
 105     return direct_to_template(request, 'catalogue/user_list.html', extra_context={
 106         'users': User.objects.all().annotate(count=Count('chunk')).order_by(
 107             '-count', 'last_name', 'first_name'),
 108     })
 109
 110
 111 @never_cache
 112 def logout_then_redirect(request):
 113     auth.logout(request)
 114     return http.HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 115
 116
 117 @active_tab('create')
 118 def create_missing(request, slug=None):
 119     if slug is None:
 120         slug = ''
 121     slug = slug.replace(' ', '-')
 122
 123     if request.method == "POST":
 124         form = forms.DocumentCreateForm(request.POST, request.FILES)
 125         if form.is_valid():
 126
 127             if request.user.is_authenticated():
 128                 creator = request.user
 129             else:
 130                 creator = None
 131             book = Book.create(creator=creator,
 132                 slug=form.cleaned_data['slug'],
 133                 title=form.cleaned_data['title'],
 134                 text=form.cleaned_data['text'],
 135             )
 136
 137             return http.HttpResponseRedirect(reverse("wiki_editor", args=[book.slug]))
 138     else:
 139         form = forms.DocumentCreateForm(initial={
 140                 "slug": slug,
 141                 "title": slug.replace('-', ' ').title(),
 142         })
 143
 144     return direct_to_template(request, "catalogue/document_create_missing.html", extra_context={
 145         "slug": slug,
 146         "form": form,
 147     })
 148
 149
 150 @active_tab('upload')
 151 def upload(request):
 152     if request.method == "POST":
 153         form = forms.DocumentsUploadForm(request.POST, request.FILES)
 154         if form.is_valid():
 155             import slughifi
 156
 157             if request.user.is_authenticated():
 158                 creator = request.user
 159             else:
 160                 creator = None
 161
 162             zip = form.cleaned_data['zip']
 163             skipped_list = []
 164             ok_list = []
 165             error_list = []
 166             slugs = {}
 167             existing = [book.slug for book in Book.objects.all()]
 168             for filename in zip.namelist():
 169                 if filename[-1] == '/':
 170                     continue
 171                 title = os.path.basename(filename)[:-4]
 172                 slug = slughifi(title)
 173                 if not (slug and filename.endswith('.xml')):
 174                     skipped_list.append(filename)
 175                 elif slug in slugs:
 176                     error_list.append((filename, slug, _('Slug already used for %s' % slugs[slug])))
 177                 elif slug in existing:
 178                     error_list.append((filename, slug, _('Slug already used in repository.')))
 179                 else:
 180                     try:
 181                         zip.read(filename).decode('utf-8') # test read
 182                         ok_list.append((filename, slug, title))
 183                     except UnicodeDecodeError:
 184                         error_list.append((filename, title, _('File should be UTF-8 encoded.')))
 185                     slugs[slug] = filename
 186
 187             if not error_list:
 188                 for filename, slug, title in ok_list:
 189                     Book.create(creator=creator,
 190                         slug=slug,
 191                         title=title,
 192                         text=zip.read(filename).decode('utf-8'),
 193                     )
 194
 195             return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 196                 "form": form,
 197                 "ok_list": ok_list,
 198                 "skipped_list": skipped_list,
 199                 "error_list": error_list,
 200             })
 201     else:
 202         form = forms.DocumentsUploadForm()
 203
 204     return direct_to_template(request, "catalogue/document_upload.html", extra_context={
 205         "form": form,
 206     })
 207
 208
 209 @never_cache
 210 def book_xml(request, slug):
 211     xml = get_object_or_404(Book, slug=slug).materialize()
 212
 213     response = http.HttpResponse(xml, content_type='application/xml', mimetype='application/wl+xml')
 214     response['Content-Disposition'] = 'attachment; filename=%s.xml' % slug
 215     return response
 216
 217
 218 @never_cache
 219 def book_txt(request, slug):
 220     xml = get_object_or_404(Book, slug=slug).materialize()
 221     output = StringIO()
 222     # errors?
 223     librarian.text.transform(StringIO(xml), output)
 224     text = output.getvalue()
 225     response = http.HttpResponse(text, content_type='text/plain', mimetype='text/plain')
 226     response['Content-Disposition'] = 'attachment; filename=%s.txt' % slug
 227     return response
 228
 229
 230 @never_cache
 231 def book_html(request, slug):
 232     xml = get_object_or_404(Book, slug=slug).materialize()
 233     output = StringIO()
 234     # errors?
 235     librarian.html.transform(StringIO(xml), output, parse_dublincore=False,
 236                              flags=['full-page'])
 237     html = output.getvalue()
 238     response = http.HttpResponse(html, content_type='text/html', mimetype='text/html')
 239     return response
 240
 241
 242 @never_cache
 243 def revision(request, slug, chunk=None):
 244     try:
 245         doc = Chunk.get(slug, chunk)
 246     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 247         raise Http404
 248     return http.HttpResponse(str(doc.revision()))
 249
 250
 251 def book(request, slug):
 252     book = get_object_or_404(Book, slug=slug)
 253
 254     # TODO: most of this should go somewhere else
 255
 256     # do we need some automation?
 257     first_master = None
 258     chunks = []
 259     need_fixing = False
 260     choose_master = False
 261
 262     length = book.chunk_set.count()
 263     for i, chunk in enumerate(book):
 264         chunk_dict = {
 265             "chunk": chunk,
 266             "fix": [],
 267             "grade": ""
 268             }
 269         graded = xml_tools.GradedText(chunk.materialize())
 270         if graded.is_wl():
 271             master = graded.master()
 272             if first_master is None:
 273                 first_master = master
 274             elif master != first_master:
 275                 chunk_dict['fix'].append('bad-master')
 276
 277             if i > 0 and not graded.has_trim_begin():
 278                 chunk_dict['fix'].append('trim-begin')
 279             if i < length - 1 and not graded.has_trim_end():
 280                 chunk_dict['fix'].append('trim-end')
 281
 282             if chunk_dict['fix']:
 283                 chunk_dict['grade'] = 'wl-fix'
 284             else:
 285                 chunk_dict['grade'] = 'wl'
 286
 287         elif graded.is_broken_wl():
 288             chunk_dict['grade'] = 'wl-broken'
 289         elif graded.is_xml():
 290             chunk_dict['grade'] = 'xml'
 291         else:
 292             chunk_dict['grade'] = 'plain'
 293             chunk_dict['fix'].append('wl')
 294             choose_master = True
 295
 296         if chunk_dict['fix']:
 297             need_fixing = True
 298         chunks.append(chunk_dict)
 299
 300     if first_master or not need_fixing:
 301         choose_master = False
 302
 303     if request.method == "POST":
 304         form = forms.ChooseMasterForm(request.POST)
 305         if not choose_master or form.is_valid():
 306             if choose_master:
 307                 first_master = form.cleaned_data['master']
 308
 309             # do the actual fixing
 310             for c in chunks:
 311                 if not c['fix']:
 312                     continue
 313
 314                 text = c['chunk'].materialize()
 315                 for fix in c['fix']:
 316                     if fix == 'bad-master':
 317                         text = xml_tools.change_master(text, first_master)
 318                     elif fix == 'trim-begin':
 319                         text = xml_tools.add_trim_begin(text)
 320                     elif fix == 'trim-end':
 321                         text = xml_tools.add_trim_end(text)
 322                     elif fix == 'wl':
 323                         text = xml_tools.basic_structure(text, first_master)
 324                 author = request.user if request.user.is_authenticated() else None
 325                 description = "auto-fix: " + ", ".join(c['fix'])
 326                 c['chunk'].commit(text=text, author=author,
 327                     description=description)
 328
 329             return http.HttpResponseRedirect(book.get_absolute_url())
 330     elif choose_master:
 331         form = forms.ChooseMasterForm()
 332     else:
 333         form = None
 334
 335     return direct_to_template(request, "catalogue/book_detail.html", extra_context={
 336         "book": book,
 337         "chunks": chunks,
 338         "need_fixing": need_fixing,
 339         "choose_master": choose_master,
 340         "first_master": first_master,
 341         "form": form,
 342     })
 343
 344
 345 def chunk_add(request, slug, chunk):
 346     try:
 347         doc = Chunk.get(slug, chunk)
 348     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 349         raise Http404
 350
 351     if request.method == "POST":
 352         form = forms.ChunkAddForm(request.POST, instance=doc)
 353         if form.is_valid():
 354             if request.user.is_authenticated():
 355                 creator = request.user
 356             else:
 357                 creator = None
 358             doc.split(creator=creator,
 359                 slug=form.cleaned_data['slug'],
 360                 comment=form.cleaned_data['comment'],
 361             )
 362
 363             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 364     else:
 365         form = forms.ChunkAddForm(initial={
 366                 "slug": str(doc.number + 1),
 367                 "comment": "cz. %d" % (doc.number + 1, ),
 368         })
 369
 370     return direct_to_template(request, "catalogue/chunk_add.html", extra_context={
 371         "chunk": doc,
 372         "form": form,
 373     })
 374
 375
 376 def chunk_edit(request, slug, chunk):
 377     try:
 378         doc = Chunk.get(slug, chunk)
 379     except (Chunk.MultipleObjectsReturned, Chunk.DoesNotExist):
 380         raise Http404
 381     if request.method == "POST":
 382         form = forms.ChunkForm(request.POST, instance=doc)
 383         if form.is_valid():
 384             form.save()
 385             return http.HttpResponseRedirect(doc.book.get_absolute_url())
 386     else:
 387         form = forms.ChunkForm(instance=doc)
 388     return direct_to_template(request, "catalogue/chunk_edit.html", extra_context={
 389         "chunk": doc,
 390         "form": form,
 391     })
 392
 393
 394 def book_append(request, slug):
 395     book = get_object_or_404(Book, slug=slug)
 396     if request.method == "POST":
 397         form = forms.BookAppendForm(request.POST)
 398         if form.is_valid():
 399             append_to = form.cleaned_data['append_to']
 400             append_to.append(book)
 401             return http.HttpResponseRedirect(append_to.get_absolute_url())
 402     else:
 403         form = forms.BookAppendForm()
 404     return direct_to_template(request, "catalogue/book_append_to.html", extra_context={
 405         "book": book,
 406         "form": form,
 407     })
 408
 409
 410 def book_edit(request, slug):
 411     book = get_object_or_404(Book, slug=slug)
 412     if request.method == "POST":
 413         form = forms.BookForm(request.POST, instance=book)
 414         if form.is_valid():
 415             form.save()
 416             return http.HttpResponseRedirect(book.get_absolute_url())
 417     else:
 418         form = forms.BookForm(instance=book)
 419     return direct_to_template(request, "catalogue/book_edit.html", extra_context={
 420         "book": book,
 421         "form": form,
 422     })
 423
 424
 425 @require_POST
 426 @login_required
 427 def publish(request, slug):
 428     book = get_object_or_404(Book, slug=slug)
 429     try:
 430         ret = api_call(request.user, "books", {"book_xml": book.materialize()})
 431     except BaseException, e:
 432         return http.HttpResponse(e)
 433     else:
 434         book.last_published = datetime.now()
 435         book.save()
 436         return http.HttpResponseRedirect(book.get_absolute_url())