Viewing file:  checkers.py (2.45 KB) -rw-r--r--
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from typing import List
from copy import deepcopy
from .exceptions import FeatureDisabledError
from .constants import CONFIG_MAPPINGS
from .model import FeatureManagementPerms
def check_feature(feature: str, permissions: List[str], user: str):
"""
Raise exception if feature is disabled for user
:param feature: feature name
:param permissions: permissions required
:param user: user name
:return: None
:raises FeatureDisabledError: if user is prohibited from use of the feature
"""
if user is None:
return
perm = FeatureManagementPerms.get_perm(user)
permission_value = perm.get_feature(feature)
if permission_value not in permissions:
raise FeatureDisabledError(
"Feature '{name}' is disabled for user '{user}'".format(
name=feature, user=user
)
)
def check_config(feature: str, user: str, section: str, raise_=False):
"""
Check if section is allowed to be read or write by user
:param feature: feature name
:param user: user name
:param section: section name to check
:param raise_: True to raise exception, otherwise return True or False
:return: True if config sections is allowed to user, False otherwise
:raises FeatureDisabledError: raised if raise_=True
"""
if user is None:
return True
if feature not in CONFIG_MAPPINGS:
return True
if section not in CONFIG_MAPPINGS[feature]:
return True
try:
check_feature(feature, CONFIG_MAPPINGS[feature][section], user)
except FeatureDisabledError:
if raise_:
raise
return False
return True
def config_cleanup(data: dict, user: str = None) -> dict:
"""
Remove prohibited sections from user config
:param data: config data
:param user: user name
:return: new config data
"""
new_data = deepcopy(data)
for feature in CONFIG_MAPPINGS:
for section in data:
if not check_config(feature, user, section):
del new_data[section]
return new_data
def config_validation(data: dict, user: str):
"""
Raise exception if user is making changes on prohibited sections of config
:param data: config data
:param user: user name
:return: None
:raises FeatureDisabledError: if user is prohibited
"""
for feature in CONFIG_MAPPINGS:
for section in data:
check_config(feature, user, section, raise_=True)
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