/usr/lib/python2.7/dist-packages/social/utils.py is in python-social-auth 0.2.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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import sys
import unicodedata
import collections
import six
import social
from social.p3 import urlparse, urlunparse, urlencode, \
parse_qs as battery_parse_qs
SETTING_PREFIX = 'SOCIAL_AUTH'
def import_module(name):
__import__(name)
return sys.modules[name]
def module_member(name):
mod, member = name.rsplit('.', 1)
module = import_module(mod)
return getattr(module, member)
def user_agent():
"""Builds a simple User-Agent string to send in requests"""
return 'python-social-auth-' + social.__version__
def url_add_parameters(url, params):
"""Adds parameters to URL, parameter will be repeated if already present"""
if params:
fragments = list(urlparse(url))
value = parse_qs(fragments[4])
value.update(params)
fragments[4] = urlencode(value)
url = urlunparse(fragments)
return url
def to_setting_name(*names):
return '_'.join([name.upper().replace('-', '_') for name in names if name])
def setting_name(*names):
return to_setting_name(*((SETTING_PREFIX,) + names))
def sanitize_redirect(host, redirect_to):
"""
Given the hostname and an untrusted URL to redirect to,
this method tests it to make sure it isn't garbage/harmful
and returns it, else returns None, similar as how's it done
on django.contrib.auth.views.
"""
if redirect_to:
try:
# Don't redirect to a different host
netloc = urlparse(redirect_to)[1] or host
except (TypeError, AttributeError):
pass
else:
if netloc == host:
return redirect_to
def user_is_authenticated(user):
if user and hasattr(user, 'is_authenticated'):
if isinstance(user.is_authenticated, collections.Callable):
authenticated = user.is_authenticated()
else:
authenticated = user.is_authenticated
elif user:
authenticated = True
else:
authenticated = False
return authenticated
def user_is_active(user):
if user and hasattr(user, 'is_active'):
if isinstance(user.is_active, collections.Callable):
is_active = user.is_active()
else:
is_active = user.is_active
elif user:
is_active = True
else:
is_active = False
return is_active
# This slugify version was borrowed from django revision a61dbd6
def slugify(value):
"""Converts to lowercase, removes non-word characters (alphanumerics
and underscores) and converts spaces to hyphens. Also strips leading
and trailing whitespace."""
value = unicodedata.normalize('NFKD', value) \
.encode('ascii', 'ignore') \
.decode('ascii')
value = re.sub('[^\w\s-]', '', value).strip().lower()
return re.sub('[-\s]+', '-', value)
def first(func, items):
"""Return the first item in the list for what func returns True"""
for item in items:
if func(item):
return item
def parse_qs(value):
"""Like urlparse.parse_qs but transform list values to single items"""
return drop_lists(battery_parse_qs(value))
def drop_lists(value):
out = {}
for key, val in value.items():
val = val[0]
if isinstance(key, six.binary_type):
key = six.text_type(key, 'utf-8')
if isinstance(val, six.binary_type):
val = six.text_type(val, 'utf-8')
out[key] = val
return out
def partial_pipeline_data(backend, user=None, *args, **kwargs):
partial = backend.strategy.session_get('partial_pipeline', None)
if partial:
idx, backend_name, xargs, xkwargs = \
backend.strategy.partial_from_session(partial)
if backend_name == backend.name:
kwargs.setdefault('pipeline_index', idx)
if user: # don't update user if it's None
kwargs.setdefault('user', user)
kwargs.setdefault('request', backend.strategy.request_data())
xkwargs.update(kwargs)
return xargs, xkwargs
else:
backend.strategy.clean_partial_pipeline()
def build_absolute_uri(host_url, path=None):
"""Build absolute URI with given (optional) path"""
path = path or ''
if path.startswith('http://') or path.startswith('https://'):
return path
if host_url.endswith('/') and path.startswith('/'):
path = path[1:]
return host_url + path
def constant_time_compare(val1, val2):
"""
Returns True if the two strings are equal, False otherwise.
The time taken is independent of the number of characters that match.
This code was borrowed from Django 1.5.4-final
"""
if len(val1) != len(val2):
return False
result = 0
if six.PY3 and isinstance(val1, bytes) and isinstance(val2, bytes):
for x, y in zip(val1, val2):
result |= x ^ y
else:
for x, y in zip(val1, val2):
result |= ord(x) ^ ord(y)
return result == 0
def is_url(value):
return value and \
(value.startswith('http://') or
value.startswith('https://') or
value.startswith('/'))
def setting_url(backend, *names):
for name in names:
if is_url(name):
return name
else:
value = backend.setting(name)
if is_url(value):
return value
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