apps/wiki/views.py

   1 import os
   2
   3 from django.conf import settings
   4 from django.views.generic.simple import direct_to_template
   5 from django.views.decorators.http import require_POST
   6 from .helpers import JSONResponse, JSONFormInvalid, JSONServerError
   7 from django import http
   8
   9 from wiki.models import getstorage
  10 from wiki.forms import DocumentForm, DocumentTextSaveForm, DocumentTagForm
  11 from datetime import datetime
  12 from django.utils.encoding import smart_unicode
  13 import wlapi
  14
  15 #
  16 # Quick hack around caching problems, TODO: use ETags
  17 #
  18 from django.views.decorators.cache import never_cache
  19
  20 import logging
  21 logger = logging.getLogger("fnp.peanut.api")
  22
  23 import nice_diff
  24 import operator
  25
  26 MAX_LAST_DOCS = 10
  27
  28 @never_cache
  29 def document_list(request, template_name = 'wiki/document_list.html'):
  30     # TODO: find a way to cache "Storage All"
  31     return direct_to_template(request, template_name, extra_context = {
  32         'document_list': getstorage().all(),
  33         'last_docs': sorted(request.session.get("wiki_last_docs", {}).items(),
  34                         key=operator.itemgetter(1), reverse = True)
  35     })
  36
  37 @never_cache
  38 def document_detail(request, name, template_name = 'wiki/document_details.html'):
  39
  40     document = getstorage().get_or_404(name)
  41
  42     access_time = datetime.now()
  43     last_documents = request.session.get("wiki_last_docs", {})
  44     last_documents[name] = access_time
  45
  46     if len(last_documents) > MAX_LAST_DOCS:
  47         oldest_key = min(last_documents, key = last_documents.__getitem__)
  48         del last_documents[oldest_key]
  49     request.session['wiki_last_docs'] = last_documents
  50
  51     return direct_to_template(request, template_name, extra_context = {
  52         'document': document,
  53         'document_info': document.info,
  54         'document_meta': document.meta,
  55         'forms': {"text_save": DocumentTextSaveForm(), "add_tag": DocumentTagForm() },
  56     })
  57
  58 @never_cache
  59 def document_text(request, name):
  60     storage = getstorage()
  61     document = storage.get_or_404(name)
  62
  63     if request.method == 'POST':
  64         form = DocumentTextSaveForm(request.POST)
  65
  66         if form.is_valid():
  67             revision = form.cleaned_data['parent_revision']
  68             document.text = form.cleaned_data['text']
  69
  70             storage.put(document,
  71                 author = form.cleaned_data['author'] or request.user.username,
  72                 comment = form.cleaned_data['comment'],
  73                 parent = revision
  74             )
  75
  76             return JSONResponse({
  77                 'text': document.plain_text if revision != document.revision() else None,
  78                 'meta': document.meta(),
  79                 'revision': document.revision()
  80             })
  81         else:
  82             return JSONFormInvalid(form)
  83     else:
  84         return JSONResponse({
  85             'text': document.plain_text,
  86             'meta': document.meta(),
  87             'revision': document.revision()
  88         })
  89
  90
  91
  92 @never_cache
  93 def document_gallery(request, directory):
  94     try:
  95         base_url = ''.join((
  96                         smart_unicode(settings.MEDIA_URL),
  97                         smart_unicode(settings.FILEBROWSER_DIRECTORY),
  98                         smart_unicode(directory)))
  99
 100         base_dir = os.path.join(
 101                     smart_unicode(settings.MEDIA_ROOT),
 102                     smart_unicode(settings.FILEBROWSER_DIRECTORY),
 103                     smart_unicode(directory))
 104
 105         def map_to_url(filename):
 106             return "%s/%s" % (base_url, smart_unicode(filename))
 107
 108         def is_image(filename):
 109             return os.path.splitext(f)[1].lower() in (u'.jpg', u'.jpeg', u'.png')
 110
 111         images = [ map_to_url(f) for f in map(smart_unicode, os.listdir(base_dir)) if is_image(f) ]
 112         images.sort()
 113         return JSONResponse(images)
 114     except (IndexError, OSError), exc:
 115         import traceback
 116         traceback.print_exc()
 117         raise http.Http404
 118
 119 @never_cache
 120 def document_diff(request, name):
 121     storage = getstorage()
 122
 123     revA = int(request.GET.get('from', 0))
 124     revB = int(request.GET.get('to', 0))
 125
 126     if revA > revB:
 127         revA, revB = revB, revA
 128
 129     if revB == 0:
 130         revB = None
 131
 132     docA = storage.get_or_404(name, int(revA))
 133     docB = storage.get_or_404(name, int(revB))
 134
 135     return http.HttpResponse(nice_diff.html_diff_table(docA.plain_text.splitlines(),
 136                                          docB.plain_text.splitlines()) )
 137
 138 @never_cache
 139 def document_history(request, name):
 140     storage = getstorage()
 141     return JSONResponse(storage.history(name))
 142
 143 @require_POST
 144 def document_add_tag(request, name):
 145     storage = getstorage()
 146
 147     form = DocumentTagForm(request.POST)
 148     if form.is_valid():
 149         doc = storage.get_or_404(name, form.cleaned_data['version'])
 150         doc.add_tag(form.cleaned_data['tag'])
 151         return JSONResponse({"message": _("Tag added")})
 152     else:
 153         return JSONFormInvalid(form)
 154
 155 @require_POST
 156 def document_publish(request, name, version):
 157     storage = getstorage()
 158
 159     # get the document
 160     document = storage.get_or_404(name, revision = int(version))
 161
 162     api = wlapi.WLAPI(settings.WL_API_CONFIG)
 163     try:
 164         return JSONResponse({"result": api.publish_book(document)})
 165     except wlapi.APICallException, e:
 166         return JSONServerError({"message": str(e)})