apps/wiki/views.py

   1 import os
   2
   3 from django.conf import settings
   4
   5 from django.views.generic.simple import direct_to_template
   6 from django.views.decorators.http import require_POST
   7 from wiki.helpers import JSONResponse, JSONFormInvalid, JSONServerError, ajax_require_permission
   8 from django import http
   9
  10 from wiki.models import getstorage
  11 from wiki.forms import DocumentTextSaveForm, DocumentTagForm
  12 from datetime import datetime
  13 from django.utils.encoding import smart_unicode
  14 from django.utils.translation import ugettext_lazy as _
  15
  16 import wlapi
  17
  18 #
  19 # Quick hack around caching problems, TODO: use ETags
  20 #
  21 from django.views.decorators.cache import never_cache
  22
  23 import logging
  24 logger = logging.getLogger("fnp.peanut.api")
  25
  26 import nice_diff
  27 import operator
  28
  29 MAX_LAST_DOCS = 10
  30
  31
  32 @never_cache
  33 def document_list(request, template_name='wiki/document_list.html'):
  34     # TODO: find a way to cache "Storage All"
  35     return direct_to_template(request, template_name, extra_context={
  36         'document_list': getstorage().all(),
  37         'last_docs': sorted(request.session.get("wiki_last_docs", {}).items(),
  38                         key=operator.itemgetter(1), reverse=True),
  39     })
  40
  41
  42 @never_cache
  43 def document_detail(request, name, template_name='wiki/document_details.html'):
  44
  45     document = getstorage().get_or_404(name)
  46
  47     access_time = datetime.now()
  48     last_documents = request.session.get("wiki_last_docs", {})
  49     last_documents[name] = access_time
  50
  51     if len(last_documents) > MAX_LAST_DOCS:
  52         oldest_key = min(last_documents, key=last_documents.__getitem__)
  53         del last_documents[oldest_key]
  54     request.session['wiki_last_docs'] = last_documents
  55
  56     return direct_to_template(request, template_name, extra_context={
  57         'document': document,
  58         'document_info': document.info,
  59         'document_meta': document.meta,
  60         'forms': {"text_save": DocumentTextSaveForm(), "add_tag": DocumentTagForm()},
  61     })
  62
  63
  64 @never_cache
  65 def document_text(request, name):
  66     storage = getstorage()
  67     document = storage.get_or_404(name)
  68
  69     if request.method == 'POST':
  70         form = DocumentTextSaveForm(request.POST)
  71
  72         if form.is_valid():
  73             revision = form.cleaned_data['parent_revision']
  74             document.text = form.cleaned_data['text']
  75
  76             storage.put(document,
  77                 author=form.cleaned_data['author'] or request.user.username,
  78                 comment=form.cleaned_data['comment'],
  79                 parent=revision,
  80             )
  81
  82             return JSONResponse({
  83                 'text': document.plain_text if revision != document.revision() else None,
  84                 'meta': document.meta(),
  85                 'revision': document.revision(),
  86             })
  87         else:
  88             return JSONFormInvalid(form)
  89     else:
  90         return JSONResponse({
  91             'text': document.plain_text,
  92             'meta': document.meta(),
  93             'revision': document.revision(),
  94         })
  95
  96
  97 @never_cache
  98 def document_gallery(request, directory):
  99     try:
 100         base_url = ''.join((
 101                         smart_unicode(settings.MEDIA_URL),
 102                         smart_unicode(settings.FILEBROWSER_DIRECTORY),
 103                         smart_unicode(directory)))
 104
 105         base_dir = os.path.join(
 106                     smart_unicode(settings.MEDIA_ROOT),
 107                     smart_unicode(settings.FILEBROWSER_DIRECTORY),
 108                     smart_unicode(directory))
 109
 110         def map_to_url(filename):
 111             return "%s/%s" % (base_url, smart_unicode(filename))
 112
 113         def is_image(filename):
 114             return os.path.splitext(f)[1].lower() in (u'.jpg', u'.jpeg', u'.png')
 115
 116         images = [map_to_url(f) for f in map(smart_unicode, os.listdir(base_dir)) if is_image(f)]
 117         images.sort()
 118         return JSONResponse(images)
 119     except (IndexError, OSError), exc:
 120         import traceback
 121         traceback.print_exc()
 122         raise http.Http404
 123
 124
 125 @never_cache
 126 def document_diff(request, name):
 127     storage = getstorage()
 128
 129     revA = int(request.GET.get('from', 0))
 130     revB = int(request.GET.get('to', 0))
 131
 132     if revA > revB:
 133         revA, revB = revB, revA
 134
 135     if revB == 0:
 136         revB = None
 137
 138     docA = storage.get_or_404(name, int(revA))
 139     docB = storage.get_or_404(name, int(revB))
 140
 141     return http.HttpResponse(nice_diff.html_diff_table(docA.plain_text.splitlines(),
 142                                          docB.plain_text.splitlines(), context=3))
 143
 144
 145 @never_cache
 146 def document_history(request, name):
 147     storage = getstorage()
 148
 149     # TODO: pagination
 150     changesets = storage.history(name)
 151
 152     return JSONResponse(changesets)
 153
 154
 155 @require_POST
 156 @ajax_require_permission('wiki.can_change_tags')
 157 def document_add_tag(request, name):
 158     storage = getstorage()
 159
 160     form = DocumentTagForm(request.POST)
 161     if form.is_valid():
 162         doc = storage.get_or_404(form.cleaned_data['id'])
 163         doc.add_tag(tag=form.cleaned_data['tag'],
 164                     revision=form.cleaned_data['revision'],
 165                     author=request.user.username)
 166         return JSONResponse({"message": _("Tag added")})
 167     else:
 168         return JSONFormInvalid(form)
 169
 170
 171 @require_POST
 172 @ajax_require_permission('wiki.can_publish')
 173 def document_publish(request, name, version):
 174     storage = getstorage()
 175
 176     # get the document
 177     document = storage.get_or_404(name, revision=int(version))
 178
 179     api = wlapi.WLAPI(settings.WL_API_CONFIG)
 180     try:
 181         return JSONResponse({"result": api.publish_book(document)})
 182     except wlapi.APICallException, e:
 183         return JSONServerError({"message": str(e)})