from django.contrib.auth.decorators import user_passes_test
from django.core.exceptions import PermissionDenied
SATISFY_ANY = "any"
SATISFY_ALL = "all"
DEFAULT_SATISFY = SATISFY_ALL
__title__ = "fobi.decorators"
__author__ = "Artur Barseghyan <artur.barseghyan@gmail.com>"
__copyright__ = "2014-2019 Artur Barseghyan"
__license__ = "GPL 2.0/LGPL 2.1"
__all__ = (
"SATISFY_ANY",
"SATISFY_ALL",
"DEFAULT_SATISFY",
"permissions_required",
"all_permissions_required",
"any_permission_required",
)
[docs]def permissions_required(
perms, satisfy=DEFAULT_SATISFY, login_url=None, raise_exception=False
):
"""Check for the permissions given based on the strategy chosen.
:param iterable perms:
:param string satisfy: Allowed values are "all" and "any".
:param string login_url:
:param bool raise_exception: If set to True, the ``PermissionDenied``
exception is raised on failures.
:return bool:
:example:
>>> @login_required
>>> @permissions_required(satisfy='any', perms=[
>>> 'fobi.add_formentry',
>>> 'fobi.change_formentry',
>>> 'fobi.delete_formentry',
>>> 'fobi.add_formelemententry',
>>> 'fobi.change_formelemententry',
>>> 'fobi.delete_formelemententry',
>>> ])
>>> def edit_dashboard(request):
>>> # your code
"""
assert satisfy in (SATISFY_ANY, SATISFY_ALL)
if SATISFY_ALL == satisfy:
# ``SATISFY_ALL`` case
def check_perms(user):
# First check if the user has the permission (even anon users)
if user.has_perms(perms):
return True
# In case the 403 handler should be called raise the exception
if raise_exception:
raise PermissionDenied
# As the last resort, show the login form
return False
else:
# ``SATISFY_ANY`` case
def check_perms(user):
# First check if the user has the permission (even anon users)
for perm in perms:
if user.has_perm(perm):
return True
# In case the 403 handler should be called raise the exception
if raise_exception:
raise PermissionDenied
# As the last resort, show the login form
return False
return user_passes_test(check_perms, login_url=login_url)
[docs]def all_permissions_required(perms, login_url=None, raise_exception=False):
"""Check for the permissions given based on SATISFY_ALL strategy chosen.
:example:
>>> @login_required
>>> @all_permissions_required([
>>> 'fobi.add_formentry',
>>> 'fobi.change_formentry',
>>> 'fobi.delete_formentry',
>>> 'fobi.add_formelemententry',
>>> 'fobi.change_formelemententry',
>>> 'fobi.delete_formelemententry',
>>> ])
>>> def edit_dashboard(request):
>>> # your code
"""
return permissions_required(
perms,
satisfy=SATISFY_ALL,
login_url=login_url,
raise_exception=raise_exception,
)
[docs]def any_permission_required(perms, login_url=None, raise_exception=False):
"""Check for the permissions given based on SATISFY_ANY strategy chosen.
:example:
>>> @login_required
>>> @any_permission_required([
>>> 'fobi.add_formentry',
>>> 'fobi.change_formentry',
>>> 'fobi.delete_formentry',
>>> 'fobi.add_formelemententry',
>>> 'fobi.change_formelemententry',
>>> 'fobi.delete_formelemententry',
>>> ])
>>> def edit_dashboard(request):
>>> # your code
"""
return permissions_required(
perms,
satisfy=SATISFY_ANY,
login_url=login_url,
raise_exception=raise_exception,
)