def load_schema_for_vo(vo):
GENERIC_FALLBACK = 'generic_multi_vo'
if config.config_has_section('policy'):
try:
POLICY = config.config_get('policy',
'package-' + vo,
check_config_table=False) + ".schema"
except (NoOptionError, NoSectionError):
# fall back to old system for now
try:
POLICY = config.config_get('policy',
'schema',
check_config_table=False)
except (NoOptionError, NoSectionError):
POLICY = GENERIC_FALLBACK
POLICY = 'rucio.common.schema.' + POLICY.lower()
else:
POLICY = 'rucio.common.schema.' + GENERIC_FALLBACK.lower()
try:
module = importlib.import_module(POLICY)
except ImportError:
raise exception.PolicyPackageNotFound('Module ' + POLICY +
' not found')
schema_modules[vo] = module
def load_permission_for_vo(vo):
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] + ".permission"
else:
POLICY = config.config_get('policy',
'package-' + vo) + ".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
if config.config_has_section('permission'):
try:
FALLBACK_POLICY = config.config_get('permission', 'policy')
except (NoOptionError, NoSectionError) as error:
FALLBACK_POLICY = 'generic'
elif config.config_has_section('policy'):
try:
FALLBACK_POLICY = config.config_get('policy', 'permission')
except (NoOptionError, NoSectionError) as error:
FALLBACK_POLICY = 'generic'
else:
FALLBACK_POLICY = 'generic'
if config.config_has_section('policy'):
try:
POLICY = config.config_get('policy', 'package') + ".permission"
except (NoOptionError, NoSectionError) as error:
# fall back to old system for now
POLICY = 'rucio.core.permission.' + FALLBACK_POLICY.lower()
else:
POLICY = 'rucio.core.permission.generic'
try:
module = importlib.import_module(POLICY)
except (ImportError) as error:
raise exception.PolicyPackageNotFound('Module ' + POLICY + ' not found')
for i in dir(module):
if i[:1] != '_' or i == '_is_root':
globals()[i] = getattr(module, i)
# Note that the order of this list is important. As the base metadata plugin module is always first, base key
# retrieval and setting will always take precedence over custom plugins, i.e. it is not possible to set a custom key with
# the same name as those in the base list.
#
# Another consequence of this is that if set_metadata() is called with multiple plugins specified, the first to return
# True to manages_key() will be used.
#
METADATA_PLUGIN_MODULES = []
for meta_module_path in METADATA_PLUGIN_MODULE_PATHS:
try:
base_module = ".".join(meta_module_path.split(".")[:-1])
base_class = meta_module_path.split(".")[-1]
metadata_plugin_module = getattr(importlib.import_module(base_module), base_class)()
METADATA_PLUGIN_MODULES.append(metadata_plugin_module)
except ImportError:
raise exception.PolicyPackageNotFound('Module ' + meta_module_path + ' not found')
# Set restricted character set for metadata in form character: reason
#
RESTRICTED_CHARACTERS = {
'.': "Used as a delimiter for key and operator (<key>.<operator>) in filtering engine."
}
def get_metadata(scope, name, plugin="DID_COLUMN", session=None):
"""
Gets the metadata for a given did from a specified plugin.
If [plugin] is set to "all", metadata from all available metadata plugins will be returned,
else [plugin] can be used to only return the metadata using a specific plugin.
