apps/wiki/views.py

   1 import os
   2 import functools
   3 import logging
   4 logger = logging.getLogger("fnp.wiki")
   5
   6 from django.conf import settings
   7
   8 from django.views.generic.simple import direct_to_template
   9 from django.views.decorators.http import require_POST, require_GET
  10 from django.core.urlresolvers import reverse
  11 from wiki.helpers import (JSONResponse, JSONFormInvalid, JSONServerError,
  12                 ajax_require_permission, recursive_groupby)
  13 from django import http
  14
  15 from wiki.models import getstorage, DocumentNotFound, normalize_name, split_name, join_name, Theme
  16 from wiki.forms import DocumentTextSaveForm, DocumentTagForm, DocumentCreateForm, DocumentsUploadForm
  17 from datetime import datetime
  18 from django.utils.encoding import smart_unicode
  19 from django.utils.translation import ugettext_lazy as _
  20
  21
  22 #
  23 # Quick hack around caching problems, TODO: use ETags
  24 #
  25 from django.views.decorators.cache import never_cache
  26
  27 import wlapi
  28 import nice_diff
  29 import operator
  30
  31 MAX_LAST_DOCS = 10
  32
  33
  34 def normalized_name(view):
  35
  36     @functools.wraps(view)
  37     def decorated(request, name, *args):
  38         normalized = normalize_name(name)
  39         logger.debug('View check %r -> %r', name, normalized)
  40
  41         if normalized != name:
  42             return http.HttpResponseRedirect(
  43                         reverse('wiki_' + view.__name__, kwargs={'name': normalized}))
  44
  45         return view(request, name, *args)
  46
  47     return decorated
  48
  49
  50 @never_cache
  51 def document_list(request):
  52     return direct_to_template(request, 'wiki/document_list.html', extra_context={
  53         'docs': getstorage().all(),
  54         'last_docs': sorted(request.session.get("wiki_last_docs", {}).items(),
  55                         key=operator.itemgetter(1), reverse=True),
  56     })
  57
  58
  59 @never_cache
  60 @normalized_name
  61 def editor(request, name, template_name='wiki/document_details.html'):
  62     storage = getstorage()
  63
  64     try:
  65         document = storage.get(name)
  66     except DocumentNotFound:
  67         return http.HttpResponseRedirect(reverse("wiki_create_missing", args=[name]))
  68
  69     access_time = datetime.now()
  70     last_documents = request.session.get("wiki_last_docs", {})
  71     last_documents[name] = access_time
  72
  73     if len(last_documents) > MAX_LAST_DOCS:
  74         oldest_key = min(last_documents, key=last_documents.__getitem__)
  75         del last_documents[oldest_key]
  76     request.session['wiki_last_docs'] = last_documents
  77
  78     return direct_to_template(request, template_name, extra_context={
  79         'document': document,
  80         'document_name': document.name,
  81         'document_info': document.info,
  82         'document_meta': document.meta,
  83         'forms': {
  84             "text_save": DocumentTextSaveForm(prefix="textsave"),
  85             "add_tag": DocumentTagForm(prefix="addtag"),
  86         },
  87         'REDMINE_URL': settings.REDMINE_URL,
  88     })
  89
  90
  91 @require_GET
  92 @normalized_name
  93 def editor_readonly(request, name, template_name='wiki/document_details_readonly.html'):
  94     name = normalize_name(name)
  95     storage = getstorage()
  96
  97     try:
  98         revision = request.GET['revision']
  99         document = storage.get(name, revision)
 100     except (KeyError, DocumentNotFound):
 101         raise http.Http404
 102
 103     access_time = datetime.now()
 104     last_documents = request.session.get("wiki_last_docs", {})
 105     last_documents[name] = access_time
 106
 107     if len(last_documents) > MAX_LAST_DOCS:
 108         oldest_key = min(last_documents, key=last_documents.__getitem__)
 109         del last_documents[oldest_key]
 110     request.session['wiki_last_docs'] = last_documents
 111
 112     return direct_to_template(request, template_name, extra_context={
 113         'document': document,
 114         'document_name': document.name,
 115         'document_info': dict(document.info(), readonly=True),
 116         'document_meta': document.meta,
 117         'REDMINE_URL': settings.REDMINE_URL,
 118     })
 119
 120
 121 @normalized_name
 122 def create_missing(request, name):
 123     storage = getstorage()
 124
 125     if request.method == "POST":
 126         form = DocumentCreateForm(request.POST, request.FILES)
 127         if form.is_valid():
 128             doc = storage.create_document(
 129                 name=form.cleaned_data['id'],
 130                 text=form.cleaned_data['text'],
 131             )
 132
 133             return http.HttpResponseRedirect(reverse("wiki_editor", args=[doc.name]))
 134     else:
 135         form = DocumentCreateForm(initial={
 136                 "id": name.replace(" ", "_"),
 137                 "title": name.title(),
 138         })
 139
 140     return direct_to_template(request, "wiki/document_create_missing.html", extra_context={
 141         "document_name": name,
 142         "form": form,
 143     })
 144
 145
 146 def upload(request):
 147     storage = getstorage()
 148
 149     if request.method == "POST":
 150         form = DocumentsUploadForm(request.POST, request.FILES)
 151         if form.is_valid():
 152             zip = form.cleaned_data['zip']
 153             skipped_list = []
 154             ok_list = []
 155             error_list = []
 156             titles = {}
 157             existing = storage.all()
 158             for filename in zip.namelist():
 159                 if filename[-1] == '/':
 160                     continue
 161                 title = normalize_name(os.path.basename(filename)[:-4])
 162                 if not (title and filename.endswith('.xml')):
 163                     skipped_list.append(filename)
 164                 elif title in titles:
 165                     error_list.append((filename, title, _('Title already used for %s' % titles[title])))
 166                 elif title in existing:
 167                     error_list.append((filename, title, _('Title already used in repository.')))
 168                 else:
 169                     ok_list.append((filename, title))
 170                     titles[title] = filename
 171             if not error_list:
 172                 for filename, title in ok_list:
 173                     storage.create_document(
 174                         name=title,
 175                         text=zip.read(filename)
 176                     )
 177
 178             return direct_to_template(request, "wiki/document_upload.html", extra_context={
 179                 "form": form,
 180                 "ok_list": ok_list,
 181                 "skipped_list": skipped_list,
 182                 "error_list": error_list,
 183             })
 184                 #doc = storage.create_document(
 185                 #    name=base,
 186                 #    text=form.cleaned_data['text'],
 187
 188
 189             return http.HttpResponse('\n'.join(yeslist) + '\n\n' + '\n'.join(nolist))
 190     else:
 191         form = DocumentsUploadForm()
 192
 193     return direct_to_template(request, "wiki/document_upload.html", extra_context={
 194         "form": form,
 195     })
 196
 197
 198 @never_cache
 199 @normalized_name
 200 def text(request, name):
 201     storage = getstorage()
 202
 203     if request.method == 'POST':
 204         form = DocumentTextSaveForm(request.POST, prefix="textsave")
 205         if form.is_valid():
 206             revision = form.cleaned_data['parent_revision']
 207             document = storage.get_or_404(name, revision)
 208             document.text = form.cleaned_data['text']
 209             comment = form.cleaned_data['comment']
 210             if form.cleaned_data['stage_completed']:
 211                 comment += '\n#stage-finished: %s\n' % form.cleaned_data['stage_completed']
 212             if request.user.is_authenticated():
 213                 author_name = request.user
 214                 author_email = request.user.email
 215             else:
 216                 author_name = form.cleaned_data['author_name']
 217                 author_email = form.cleaned_data['author_email']
 218             author = "%s <%s>" % (author_name, author_email)
 219             storage.put(document, author=author, comment=comment, parent=revision)
 220             document = storage.get(name)
 221             return JSONResponse({
 222                 'text': document.plain_text if revision != document.revision else None,
 223                 'meta': document.meta(),
 224                 'revision': document.revision,
 225             })
 226         else:
 227             return JSONFormInvalid(form)
 228     else:
 229         revision = request.GET.get("revision", None)
 230
 231         try:
 232             try:
 233                 revision = revision and int(revision)
 234                 logger.info("Fetching %s", revision)
 235                 document = storage.get(name, revision)
 236             except ValueError:
 237                 # treat as a tag
 238                 logger.info("Fetching tag %s", revision)
 239                 document = storage.get_by_tag(name, revision)
 240         except DocumentNotFound:
 241             raise http.Http404
 242
 243         return JSONResponse({
 244             'text': document.plain_text,
 245             'meta': document.meta(),
 246             'revision': document.revision,
 247         })
 248
 249
 250 @never_cache
 251 @normalized_name
 252 @require_POST
 253 def revert(request, name):
 254     storage = getstorage()
 255     revision = request.POST['target_revision']
 256
 257     try:
 258         document = storage.revert(name, revision)
 259
 260         return JSONResponse({
 261             'text': document.plain_text if revision != document.revision else None,
 262             'meta': document.meta(),
 263             'revision': document.revision,
 264         })
 265     except DocumentNotFound:
 266         raise http.Http404
 267
 268 @never_cache
 269 def gallery(request, directory):
 270     try:
 271         base_url = ''.join((
 272                         smart_unicode(settings.MEDIA_URL),
 273                         smart_unicode(settings.FILEBROWSER_DIRECTORY),
 274                         smart_unicode(directory)))
 275
 276         base_dir = os.path.join(
 277                     smart_unicode(settings.MEDIA_ROOT),
 278                     smart_unicode(settings.FILEBROWSER_DIRECTORY),
 279                     smart_unicode(directory))
 280
 281         def map_to_url(filename):
 282             return "%s/%s" % (base_url, smart_unicode(filename))
 283
 284         def is_image(filename):
 285             return os.path.splitext(f)[1].lower() in (u'.jpg', u'.jpeg', u'.png')
 286
 287         images = [map_to_url(f) for f in map(smart_unicode, os.listdir(base_dir)) if is_image(f)]
 288         images.sort()
 289         return JSONResponse(images)
 290     except (IndexError, OSError):
 291         logger.exception("Unable to fetch gallery")
 292         raise http.Http404
 293
 294
 295 @never_cache
 296 @normalized_name
 297 def diff(request, name):
 298     storage = getstorage()
 299
 300     revA = int(request.GET.get('from', 0))
 301     revB = int(request.GET.get('to', 0))
 302
 303     if revA > revB:
 304         revA, revB = revB, revA
 305
 306     if revB == 0:
 307         revB = None
 308
 309     docA = storage.get_or_404(name, int(revA))
 310     docB = storage.get_or_404(name, int(revB))
 311
 312     return http.HttpResponse(nice_diff.html_diff_table(docA.plain_text.splitlines(),
 313                                          docB.plain_text.splitlines(), context=3))
 314
 315
 316 @never_cache
 317 @normalized_name
 318 def history(request, name):
 319     storage = getstorage()
 320
 321     # TODO: pagination
 322     changesets = list(storage.history(name))
 323
 324     return JSONResponse(changesets)
 325
 326
 327 @require_POST
 328 @ajax_require_permission('wiki.can_change_tags')
 329 def add_tag(request, name):
 330     name = normalize_name(name)
 331     storage = getstorage()
 332
 333     form = DocumentTagForm(request.POST, prefix="addtag")
 334     if form.is_valid():
 335         doc = storage.get_or_404(form.cleaned_data['id'])
 336         doc.add_tag(tag=form.cleaned_data['tag'],
 337                     revision=form.cleaned_data['revision'],
 338                     author=request.user.username)
 339         return JSONResponse({"message": _("Tag added")})
 340     else:
 341         return JSONFormInvalid(form)
 342
 343
 344 @require_POST
 345 @ajax_require_permission('wiki.can_publish')
 346 def publish(request, name):
 347     name = normalize_name(name)
 348
 349     storage = getstorage()
 350     document = storage.get_by_tag(name, "ready_to_publish")
 351
 352     api = wlapi.WLAPI(**settings.WL_API_CONFIG)
 353
 354     try:
 355         return JSONResponse({"result": api.publish_book(document)})
 356     except wlapi.APICallException, e:
 357         return JSONServerError({"message": str(e)})
 358
 359
 360 def themes(request):
 361     prefix = request.GET.get('q', '')
 362     return http.HttpResponse('\n'.join([str(t) for t in Theme.objects.filter(name__istartswith=prefix)]))