def clean_name(self):
if self.cleaned_data['name']:
# only letters, numbers, underscores, spaces and hyphens are allowed.
if not alnum_name_re.search(self.cleaned_data['name']):
raise forms.ValidationError(_(u'Only letters, numbers, underscores, spaces and hyphens are allowed.'))
# file/directory must not already exist.
if _exists(_convert_filename(self.cleaned_data['name']) + self.file_extension):
raise forms.ValidationError(_(u'The File/Folder already exists.'))
return _convert_filename(self.cleaned_data['name'])
def _check_file(request):
"""
Check if file already exists on the server.
"""
from django.utils import simplejson
folder = request.POST.get('folder')
fb_uploadurl_re = re.compile(r'^(%s)' % reverse("fb_upload"))
folder = fb_uploadurl_re.sub('', folder)
fileArray = {}
if request.method == 'POST':
for k, v in request.POST.items():
if k != "folder":
v = _convert_filename(v)
if _exists(os.path.join(MEDIA_ROOT, DIRECTORY, folder, v)):
fileArray[k] = v
return HttpResponse(simplejson.dumps(fileArray))
def render(self, context):
try:
source = self.src.resolve(context)
except VariableDoesNotExist:
return None
if self.version_prefix:
version_prefix = self.version_prefix
else:
try:
version_prefix = self.version_prefix_var.resolve(context)
except VariableDoesNotExist:
return None
try:
version_path = _get_version_path(_url_to_path(str(source)), version_prefix)
if not _exists(version_path):
# create version
version_path = _version_generator(_url_to_path(str(source)), version_prefix)
elif _last_mod(os.path.join(MEDIA_ROOT, _url_to_path(str(source)))) > _last_mod(os.path.join(MEDIA_ROOT, version_path)):
# recreate version if original image was updated
version_path = _version_generator(_url_to_path(str(source)), version_prefix, force=True)
context[self.var_name] = FileObject(version_path)
except:
context[self.var_name] = ""
return ''
