def new_getAuthorization(scope, action):
"""
This internal function returns the Authrorizaition within some
the scope=system(or audit, monitoring, tools). for the currently
authenticated administrativ user.
This does not take into account the REALMS!
arguments:
action - this is the action
scope = system/audit/monitoring/tools
read
write
returns:
a dictionary with the following keys:
active (if policies are used)
admin (the name of the authenticated admin user)
auth (True if admin is authorized for this action)
"""
active = True
auth = False
policy_elve = PolicyEvaluator(get_policies())
p_at_all = policy_elve.has_policy({'scope': scope})
if len(p_at_all) == 0:
LOG.info("No policies in scope %s found. Checking "
"of scope %s be disabled.", scope, scope)
active = False
auth = True
# TODO: We may change this later to other authentication schemes
LOG.debug("[getAuthorization] now getting the admin user name")
admin_user = _getAuthenticatedUser()
LOG.debug("Evaluating policies for the user: %s", admin_user['login'])
param = {'user': admin_user['login'],
'scope': scope,
'action': action}
policies = policy_elve.set_filters(param).evaluate(policy_set=p_at_all)
LOG.debug("Found the following policies: %r", policies)
if len(policies.keys()) > 0:
auth = True
return {'active': active,
'auth': auth,
'admin': admin_user['login']}
def new_has_client_policy(client, scope=None, action=None, realm=None,
user=None, find_resolver=True, userObj=None,
active_only=True):
'''
This function returns the dictionary of policies for the given client.
1. First it searches for all policies matching (scope, action, realm) and
checks, whether the given client is contained in the policy field client.
If no policy for the given client is found it takes the policy without
a client
2. Then it strips down the returnable policies to those, that only contain
the username - UNLESS - none of the above policies contains a username
3. then we try to find resolvers in the username (OPTIONAL)
4. if nothing matched so far, we try the extended policy check
The difference to the get_policy is, that it restores the already installed
filters for an existance check
'''
policy_eval = PolicyEvaluator(get_policies())
param = {}
if realm:
param['realm'] = realm
if scope:
param['scope'] = scope
if action:
param['action'] = action
if active_only:
policy_eval.filter_for_active(state=True)
if client:
param['client'] = client
if userObj:
param['user'] = userObj
elif user:
param['user'] = user
policies = policy_eval.has_policy(param)
return policies
def new_get_client_policy(client, scope=None, action=None, realm=None,
user=None, find_resolver=True, userObj=None,
active_only=True):
'''
This function returns the dictionary of policies for the given client.
1. First it searches for all policies matching (scope, action, realm) and
checks, whether the given client is contained in the policy field client.
If no policy for the given client is found it takes the policy without
a client
2. Then it strips down the returnable policies to those, that only contain
the username - UNLESS - none of the above policies contains a username
3. then we try to find resolvers in the username (OPTIONAL)
4. if nothing matched so far, we try the extended policy check
'''
policy_eval = PolicyEvaluator(get_policies())
if realm:
policy_eval.filter_for_realm(realm)
if scope:
policy_eval.filter_for_scope(scope)
if action:
policy_eval.filter_for_action(action)
if client:
policy_eval.filter_for_client(client)
policy_eval.filter_for_time()
if active_only:
policy_eval.filter_for_active(state=True)
if userObj:
policy_eval.filter_for_user(userObj)
elif user:
policy_eval.filter_for_user(user)
policies = policy_eval.evaluate(multiple=False)
return policies
def new_getPolicy(param, only_active=True):
'''
Function to retrieve the list of policies.
attributes:
- name: (optional) will only return the policy with the name
- user: (optional) will only return the policies for this user
- realm: (optional) will only return the policies of this realm
- scope: (optional) will only return the policies within this scope
- action: (optional) will only return the policies with this action
The action can also be something like "otppin" and will
return policies containing "otppin = 2"
:return: a dictionary with the policies. The name of the policy being
the key
'''
#
# filter the policies with the new engine
policy_elve = PolicyEvaluator(get_policies())
#
# install the filters
policy_elve.set_filters(params=param)
#
# add the special filter for activ or inactive policies
if only_active:
policy_elve.filter_for_active(state=True)
if (('user' in param and param['user'] is not None) or
('action' in param and param['action'] is not None)):
policy_elve.filter_for_time()
#
# finally we apply the filter
new_pols = policy_elve.evaluate()
return new_pols
def new_getPolicy(param, only_active=False):
'''
Function to retrieve the list of policies.
attributes:
- name: (optional) will only return the policy with the name
- user: (optional) will only return the policies for this user
- realm: (optional) will only return the policies of this realm
- scope: (optional) will only return the policies within this scope
- action: (optional) will only return the policies with this action
The action can also be something like "otppin" and will
return policies containing "otppin = 2"
:return: a dictionary with the policies. The name of the policy being
the key
'''
#
# filter the policies with the new engine
policy_elve = PolicyEvaluator(get_policies())
#
# install the filters
policy_elve.set_filters(params=param)
#
# add the special filter for activ or inactive policies
if only_active:
policy_elve.filter_for_active(state=True)
if (('user' in param and param['user'] is not None)
or ('action' in param and param['action'] is not None)):
policy_elve.filter_for_time()
#
# finally we apply the filter
new_pols = policy_elve.evaluate()
return new_pols
def deletePolicy(name, enforce=False):
'''
Function to delete one named policy
attributes:
name: (required) will only return the policy with the name
'''
res = {}
if not re.match('^[a-zA-Z0-9_]*$', name):
raise ServerError("policy name may only contain the "
"characters a-zA-Z0-9_", id=8888)
if context and 'Config' in context:
Config = context['Config']
else:
Config = getLinotpConfig()
#
# we need the policies for a name lookup only
policies = get_policies()
# check if due to delete of the policy a lockout could happen
param = policies.get(name)
# delete is same as inactive ;-)
if param:
param['active'] = "False"
param['name'] = name
param['enforce'] = enforce
_check_policy_impact(**param)
delEntries = []
for entry in Config:
if entry.startswith("linotp.Policy.%s." % name):
delEntries.append(entry)
for entry in delEntries:
# delete this entry.
log.debug("[deletePolicy] removing key: %s" % entry)
ret = removeFromConfig(entry)
res[entry] = ret
return res