908aece78a
This change updates the KMIP client to support the custom selection of client configuration options. This makes it easy to dynamically create clients that connect to different backends. All unit demos have been updated to support this feature.
85 lines
3.5 KiB
Python
85 lines
3.5 KiB
Python
# Copyright (c) 2014 The Johns Hopkins University/Applied Physics Laboratory
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import os
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from six.moves.configparser import SafeConfigParser
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FILE_PATH = os.path.dirname(os.path.abspath(__file__))
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CONFIG_FILE = os.path.normpath(os.path.join(FILE_PATH, '../kmipconfig.ini'))
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class ConfigHelper(object):
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NONE_VALUE = 'None'
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DEFAULT_HOST = "127.0.0.1"
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DEFAULT_PORT = 5696
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DEFAULT_CERTFILE = os.path.normpath(os.path.join(
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FILE_PATH, '../demos/certs/server.crt'))
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DEFAULT_KEYFILE = os.path.normpath(os.path.join(
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FILE_PATH, '../demos/certs/server.key'))
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DEFAULT_CA_CERTS = os.path.normpath(os.path.join(
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FILE_PATH, '../demos/certs/server.crt'))
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DEFAULT_SSL_VERSION = 'PROTOCOL_SSLv23'
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DEFAULT_USERNAME = None
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DEFAULT_PASSWORD = None
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def __init__(self):
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self.logger = logging.getLogger(__name__)
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self.conf = SafeConfigParser()
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if self.conf.read(CONFIG_FILE):
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self.logger.debug("Using config file at {0}".format(CONFIG_FILE))
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else:
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self.logger.warning(
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"Config file {0} not found".format(CONFIG_FILE))
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def get_valid_value(self, direct_value, config_section,
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config_option_name, default_value):
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"""Returns a value that can be used as a parameter in client or
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server. If a direct_value is given, that value will be returned
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instead of the value from the config file. If the appropriate config
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file option is not found, the default_value is returned.
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:param direct_value: represents a direct value that should be used.
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supercedes values from config files
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:param config_section: which section of the config file to use
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:param config_option_name: name of config option value
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:param default_value: default value to be used if other options not
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found
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:returns: a value that can be used as a parameter
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"""
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ARG_MSG = "Using given value '{0}' for {1}"
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CONF_MSG = "Using value '{0}' from configuration file {1} for {2}"
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DEFAULT_MSG = "Using default value '{0}' for {1}"
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if direct_value:
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return_value = direct_value
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self.logger.debug(ARG_MSG.format(direct_value, config_option_name))
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else:
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try:
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return_value = self.conf.get(config_section,
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config_option_name)
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self.logger.debug(CONF_MSG.format(return_value,
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CONFIG_FILE,
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config_option_name))
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except:
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return_value = default_value
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self.logger.debug(DEFAULT_MSG.format(default_value,
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config_option_name))
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if return_value == self.NONE_VALUE:
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return None
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else:
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return return_value
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