Source code for google.cloud.forseti.common.util.parser

# Copyright 2017 The Forseti Security Authors. All rights reserved.
#
# 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
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"""Utility functions for parsing various data."""

import json

from dateutil import parser as dateutil_parser

from google.cloud.forseti.common.util import logger

LOGGER = logger.get_logger(__name__)


[docs]def parse_member_info(member): """Parse out the components of an IAM policy binding member. Args: member (str): An IAM policy member, of the format "{membertype}:{email address}". Returns: str: The member type. str: The name portion of the member. str: The domain of the member. """ member_type, email = member.split(':', 1) if '@' in email: member_name, member_domain = email.split('@', 1) else: # Member is really something like domain:google.com member_name = '' member_domain = email return member_type, member_name, member_domain
[docs]def format_timestamp(timestamp_str, datetime_formatter): """Parse and stringify a timestamp to a specified format. Args: timestamp_str (str): A timestamp. datetime_formatter (str): A format string. Returns: str: The formatted, stringified timestamp. """ try: if '"' in timestamp_str or '\'' in timestamp_str: # Make sure the timestamp is not surrounded by any quotes timestamp_str = timestamp_str.replace('"', '') timestamp_str = timestamp_str.replace('\'', '') formatted_timestamp = ( dateutil_parser.parse(timestamp_str).strftime(datetime_formatter)) except (TypeError, ValueError) as e: LOGGER.warn('Unable to parse/format timestamp: %s\n,' ' datetime_formatter: %s\n%s', timestamp_str, datetime_formatter, e) formatted_timestamp = None return formatted_timestamp
[docs]def json_stringify(obj_to_jsonify): """Convert a python object to json string. Args: obj_to_jsonify (dict): The object to json stringify. Returns: str: The json-stringified dict. """ # TODO: We should probably try and catch something here. return json.dumps(obj_to_jsonify, sort_keys=True)
[docs]def json_unstringify(json_to_objify, default=None): """Convert a json string to a python object. Args: json_to_objify (str): The json string. default (object): The default value if no json string is passed in. Returns: object: The un-stringified object. """ try: parsed = json.loads(json_to_objify) except (TypeError, ValueError): parsed = default if parsed is None and default is not None: return default return parsed