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