__author__ = 'Artur Barseghyan <artur.barseghyan@gmail.com>'
__copyright__ = 'Copyright (c) 2013 Artur Barseghyan'
__license__ = 'GPL 2.0/LGPL 2.1'
__all__ = ('SATISFY_ANY', 'SATISFY_ALL', 'DEFAULT_SATISFY', 'permissions_required', 'all_permissions_required', \
'any_permission_required', 'edit_dashboard_permission_required')
SATISFY_ANY = 'any'
SATISFY_ALL = 'all'
DEFAULT_SATISFY = SATISFY_ALL
from django.core.exceptions import PermissionDenied
from django.contrib.auth.decorators import user_passes_test
[docs]def permissions_required(perms, satisfy=DEFAULT_SATISFY, login_url=None, raise_exception=False):
"""
Checks 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=[
>>> 'dash.add_dashboardentry', 'dash.change_dashboardentry', 'dash.delete_dashboardentry',
>>> 'dash.add_dashboardworkspace', 'dash.change_dashboardworkspace', 'dash.delete_dashboardworkspace',
>>> 'dash.add_dashboardsettings', 'dash.change_dashboardsettings', 'dash.delete_dashboardsettings',
>>> ])
>>> 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):
"""
:example:
>>> @login_required
>>> @all_permissions_required([
>>> 'dash.add_dashboardentry', 'dash.change_dashboardentry', 'dash.delete_dashboardentry',
>>> 'dash.add_dashboardworkspace', 'dash.change_dashboardworkspace', 'dash.delete_dashboardworkspace',
>>> 'dash.add_dashboardsettings', 'dash.change_dashboardsettings', 'dash.delete_dashboardsettings',
>>> ])
>>> 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):
"""
:example:
>>> @login_required
>>> @any_permission_required([
>>> 'dash.add_dashboardentry', 'dash.change_dashboardentry', 'dash.delete_dashboardentry',
>>> 'dash.add_dashboardworkspace', 'dash.change_dashboardworkspace', 'dash.delete_dashboardworkspace',
>>> 'dash.add_dashboardsettings', 'dash.change_dashboardsettings', 'dash.delete_dashboardsettings',
>>> ])
>>> def edit_dashboard(request):
>>> # your code
"""
return permissions_required(perms, satisfy=SATISFY_ANY, login_url=login_url, raise_exception=raise_exception)
[docs]def edit_dashboard_permission_required(login_url=None, raise_exception=False):
"""
Checks if user has permissions to edit dashboard. Simply, check is successfull if any of the following
permission checks are satisfied:
- Can add dashboard entry
- Can change dashboard entry
- Can delete dashboard entry
- Can add dashboard workspace
- Can change dashboard workspace
- Can delete dashboard workspace
- Can add dashboard settings
- Can change dashboard settings
- Can delete dashboard settings
:example:
>>> @login_required
>>> @edit_dashboard_permission_required() # Do not forget the brackets!
>>> def edit_dashboard(request):
>>> # your code
"""
return permissions_required(
perms = [
'dash.add_dashboardentry', 'dash.change_dashboardentry', 'dash.delete_dashboardentry',
'dash.add_dashboardworkspace', 'dash.change_dashboardworkspace', 'dash.delete_dashboardworkspace',
'dash.add_dashboardsettings', 'dash.change_dashboardsettings', 'dash.delete_dashboardsettings',
],
satisfy = SATISFY_ANY,
login_url = login_url,
raise_exception = raise_exception
)