def get_group_list(user=None, include_default=True):
'''
Returns a list of all of the system group names of which the user
is a member.
'''
if HAS_GRP is False or HAS_PWD is False:
# We don't work on platforms that don't have grp and pwd
# Just return an empty list
return []
group_names = None
ugroups = set()
if not isinstance(user, six.string_types):
raise Exception
if hasattr(os, 'getgrouplist'):
# Try os.getgrouplist, available in python >= 3.3
log.trace('Trying os.getgrouplist for \'{0}\''.format(user))
try:
group_names = [
grp.getgrgid(grpid).gr_name for grpid in
os.getgrouplist(user, pwd.getpwnam(user).pw_gid)
]
except Exception:
pass
else:
# Try pysss.getgrouplist
log.trace('Trying pysss.getgrouplist for \'{0}\''.format(user))
try:
import pysss # pylint: disable=import-error
group_names = list(pysss.getgrouplist(user))
except Exception:
pass
if group_names is None:
# Fall back to generic code
# Include the user's default group to behave like
# os.getgrouplist() and pysss.getgrouplist() do
log.trace('Trying generic group list for \'{0}\''.format(user))
group_names = [g.gr_name for g in grp.getgrall() if user in g.gr_mem]
try:
default_group = grp.getgrgid(pwd.getpwnam(user).pw_gid).gr_name
if default_group not in group_names:
group_names.append(default_group)
except KeyError:
# If for some reason the user does not have a default group
pass
ugroups.update(group_names)
if include_default is False:
# Historically, saltstack code for getting group lists did not
# include the default group. Some things may only want
# supplemental groups, so include_default=False omits the users
# default group.
try:
default_group = grp.getgrgid(pwd.getpwnam(user).pw_gid).gr_name
ugroups.remove(default_group)
except KeyError:
# If for some reason the user does not have a default group
pass
log.trace('Group list for user \'{0}\': \'{1}\''.format(user, sorted(ugroups)))
return sorted(ugroups)
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