/
__init__.py
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/
__init__.py
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# Copyright European Organization for Nuclear Research (CERN) since 2012
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import importlib
from configparser import NoOptionError, NoSectionError
from os import environ
from typing import TYPE_CHECKING, Any
from rucio.common import config, exception
from rucio.common.utils import check_policy_package_version
if TYPE_CHECKING:
from typing import Optional
from sqlalchemy.orm import Session
from rucio.common.types import InternalAccount
# dictionary of permission modules for each VO
permission_modules = {}
try:
multivo = config.config_get_bool('common', 'multi_vo')
except (NoOptionError, NoSectionError):
multivo = False
# in multi-vo mode packages are loaded on demand when needed
if not multivo:
GENERIC_FALLBACK = 'generic'
if config.config_has_section('permission'):
try:
FALLBACK_POLICY = config.config_get('permission', 'policy')
except (NoOptionError, NoSectionError):
FALLBACK_POLICY = GENERIC_FALLBACK
elif config.config_has_section('policy'):
try:
FALLBACK_POLICY = config.config_get('policy', 'permission')
except (NoOptionError, NoSectionError):
FALLBACK_POLICY = GENERIC_FALLBACK
else:
FALLBACK_POLICY = GENERIC_FALLBACK
if config.config_has_section('policy'):
try:
if 'RUCIO_POLICY_PACKAGE' in environ:
POLICY = environ['RUCIO_POLICY_PACKAGE']
else:
POLICY = config.config_get('policy', 'package', check_config_table=False)
check_policy_package_version(POLICY)
POLICY = POLICY + ".permission"
except (NoOptionError, NoSectionError):
# fall back to old system for now
POLICY = 'rucio.core.permission.' + FALLBACK_POLICY.lower()
else:
POLICY = 'rucio.core.permission.' + GENERIC_FALLBACK.lower()
try:
module = importlib.import_module(POLICY)
except ImportError:
raise exception.PolicyPackageNotFound('Module ' + POLICY + ' not found')
permission_modules["def"] = module
def load_permission_for_vo(vo: str) -> None:
GENERIC_FALLBACK = 'generic_multi_vo'
if config.config_has_section('policy'):
try:
env_name = 'RUCIO_POLICY_PACKAGE_' + vo.upper()
if env_name in environ:
POLICY = environ[env_name]
else:
POLICY = config.config_get('policy', 'package-' + vo)
check_policy_package_version(POLICY)
POLICY = POLICY + ".permission"
except (NoOptionError, NoSectionError):
# fall back to old system for now
try:
POLICY = config.config_get('policy', 'permission')
except (NoOptionError, NoSectionError):
POLICY = GENERIC_FALLBACK
POLICY = 'rucio.core.permission.' + POLICY.lower()
else:
POLICY = 'rucio.core.permission.' + GENERIC_FALLBACK.lower()
try:
module = importlib.import_module(POLICY)
except ImportError:
raise exception.PolicyPackageNotFound('Module ' + POLICY + ' not found')
permission_modules[vo] = module
def has_permission(
issuer: "InternalAccount",
action: str,
kwargs: dict[str, Any],
*,
session: "Optional[Session]" = None
) -> bool:
if issuer.vo not in permission_modules:
load_permission_for_vo(issuer.vo)
return permission_modules[issuer.vo].has_permission(issuer, action, kwargs, session=session)