def hash(self, request):
"""
Creates an hash of `version_id` of all accessible assets by the user.
Useful to detect changes between each request.
:param request:
:return: JSON
"""
user = self.request.user
if user.is_anonymous:
raise exceptions.NotAuthenticated()
else:
accessible_assets = get_objects_for_user(
user, "view_asset", Asset).filter(asset_type=ASSET_TYPE_SURVEY) \
.order_by("uid")
assets_version_ids = [
asset.version_id for asset in accessible_assets
if asset.version_id is not None
]
# Sort alphabetically
assets_version_ids.sort()
if len(assets_version_ids) > 0:
hash = md5(hashable_str(
"".join(assets_version_ids))).hexdigest()
else:
hash = ""
return Response({"hash": hash})
def test_version_content_hash(self):
_content = {
'survey': [{
'type': 'note',
'label': 'Read me',
'name': 'n1'
}],
}
new_asset = Asset.objects.create(asset_type='survey', content=_content)
expected_hash = hashlib.sha1(
hashable_str(json.dumps(new_asset.content,
sort_keys=True))).hexdigest()
self.assertEqual(new_asset.latest_version.content_hash, expected_hash)
return new_asset
def test_assets_hash(self):
another_user = User.objects.get(username="******")
user_asset = Asset.objects.first()
user_asset.save()
user_asset.assign_perm(another_user, "view_asset")
self.client.logout()
self.client.login(username="******", password="******")
creation_response = self.create_asset()
another_user_asset = another_user.assets.last()
another_user_asset.save()
versions_ids = [user_asset.version_id, another_user_asset.version_id]
versions_ids.sort()
expected_hash = md5(hashable_str(''.join(versions_ids))).hexdigest()
hash_url = reverse("asset-hash")
hash_response = self.client.get(hash_url)
self.assertEqual(hash_response.data.get("hash"), expected_hash)
def hash(self):
return '%s' % md5(hashable_str(self.xml)).hexdigest()
def content_hash(self):
# used to determine changes in the content from version to version
# not saved, only compared with other asset_versions
_json_string = json.dumps(self.version_content, sort_keys=True)
return hashlib.sha1(hashable_str(_json_string)).hexdigest()
def gravatar_url(email, https=True):
return "%s://www.gravatar.com/avatar/%s?%s" % (
'https' if https else 'http',
hashlib.md5(hashable_str(email.lower())).hexdigest(),
urlencode({'s': '40'}),
)
def sluggify(_str, _opts):
"""
this method is ported over from coffeescript:
jsapp/xlform/src/model.utils.coffee
"""
_initial = _str
if _str == '':
return ''
opts = dict(DEFAULT_OPTS, **_opts)
if opts['lrstrip']:
_str = _str.strip()
elif opts['lstrip']:
_str = _str.lstrip()
elif opts['rstrip']:
_str = _str.rstrip()
if opts['lowerCase']:
_str = _str.lower()
if opts['underscores']:
_str = re.sub(r'\s', '_', _str)
# .replace(/[_]+/g, "_") <- replaces duplicates?
if opts['replaceNonWordCharacters']:
if opts['nonWordCharsExceptions']:
regex = r'[^a-zA-Z0-9_{}]'.format(opts['nonWordCharsExceptions'])
else:
regex = r'[^a-zA-Z0-9_]+' # Cannot use `\W`. Different behaviour with Python 2 & 3
_str = re.sub(regex, '_', _str)
if _str != '_' and re.search('_$', _str):
_str = re.sub('_$', '', _str)
if opts['characterLimit']:
_limit = opts['characterLimit']
if opts['characterLimit_shorten_method'] == 'ends':
_str = _shorten_long_name(_str, _limit, join_with='_')
else:
_str = _str[0:opts['characterLimit']]
if opts['validXmlTag']:
if re.search(r'^\d', _str):
_str = '_' + _str
if opts['preventDuplicateUnderscores']:
while re.search('__', _str):
_str = re.sub('__', '_', _str)
names = opts.get('other_names', opts['preventDuplicates'])
if isinstance(names, list):
names_lc = [name.lower() for name in names]
attempt_base = _str
if len(attempt_base) == 0:
# empty string because arabic / cyrillic characters
_str = 'h{}'.format(
hashlib.md5(hashable_str(_initial[0:7])).hexdigest()[0:7])
attempt = attempt_base
incremented = 0
while attempt.lower() in names_lc:
incremented += 1
attempt = "{0}_{1:03d}".format(attempt_base, incremented)
_str = attempt
return _str
