synergy-service/synergy/common/utils.py
Lisa Zangrando b99f2078a1 Missing security support
This fix provides to Synergy a security mechanism highly configurable.
The security policies are pluggable so that it is possible to define any
kind of authorization checks.
This commit includes a very simple authorization plugin (i.e.
synergy.auth.plugin.LocalHostAuthorization) which denies any command
coming from clients having IP address different from the Synergy's one.

Bug: #1691352
Change-Id: I2535b2a3edeea5e56cd8918d01070a6f8a534c3e
Sem-Ver: bugfix
2017-05-23 12:57:50 +00:00

65 lines
2.0 KiB
Python

import sys
import traceback
from datetime import datetime
from synergy.exception import SynergyError
__author__ = "Lisa Zangrando"
__email__ = "lisa.zangrando[AT]pd.infn.it"
__copyright__ = """Copyright (c) 2015 INFN - INDIGO-DataCloud
All Rights Reserved
Licensed under the Apache License, Version 2.0;
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."""
def import_class(import_str):
"""Returns a class from a string including module and class."""
mod_str, _sep, class_str = import_str.rpartition('.')
__import__(mod_str)
try:
return getattr(sys.modules[mod_str], class_str)
except AttributeError:
raise SynergyError(
'Class %s cannot be found (%s)' %
(class_str, traceback.format_exception(*sys.exc_info())))
def instantiate_class(class_str):
return import_class(class_str)()
def objectHookHandler(json_dict):
for key, value in json_dict.items():
if isinstance(value, dict):
json_dict[key] = objectHookHandler(value)
else:
try:
json_dict[key] = datetime.strptime(value,
"%Y-%m-%dT%H:%M:%S.%f")
except Exception as ex:
pass
if "synergy_object" in json_dict:
synergy_object = json_dict["synergy_object"]
try:
objClass = import_class(synergy_object["name"])
objInstance = objClass()
return objInstance.deserialize(json_dict)
except SynergyError as ex:
raise ex
else:
return json_dict