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# Licensed to the StackStorm, Inc ('StackStorm') under one or more |
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# contributor license agreements. See the NOTICE file distributed with |
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# this work for additional information regarding copyright ownership. |
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# The ASF licenses this file to You under the Apache License, Version 2.0 |
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# (the "License"); you may not use this file except in compliance with |
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# the License. You may obtain 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, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import six |
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from pecan.rest import RestController |
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from oslo_config import cfg |
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from six.moves.urllib import parse as urlparse # pylint: disable=import-error |
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from st2api.controllers.controller_transforms import transform_to_bool |
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__all__ = [ |
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'BaseRestControllerMixin' |
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] |
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SHOW_SECRETS_QUERY_PARAM = 'show_secrets' |
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class BaseRestControllerMixin(RestController): |
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""" |
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Base REST controller class which contains various utility functions. |
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""" |
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def _parse_query_params(self, request): |
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""" |
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Parse query string for the provided request. |
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:rtype: ``dict`` |
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""" |
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query_string = request.query_string |
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query_params = dict(urlparse.parse_qsl(query_string)) |
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return query_params |
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def _get_query_param_value(self, request, param_name, param_type, default_value=None): |
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""" |
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Return a value for the provided query param and optionally cast it for boolean types. |
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If the requested query parameter is not provided, default value is returned instead. |
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:param request: Request object. |
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:param param_name: Name of the param to retrieve the value for. |
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:type param_name: ``str`` |
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:param param_type: Type of the query param (e.g. "bool"). |
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:type param_type: ``str`` |
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:param default_value: Value to return if query param is not provided. |
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:type default_value: ``object`` |
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""" |
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query_params = self._parse_query_params(request=request) |
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value = query_params.get(param_name, default_value) |
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if param_type == 'bool' and isinstance(value, six.string_types): |
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value = transform_to_bool(value) |
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return value |
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def _get_mask_secrets(self, request): |
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""" |
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Return a value for mask_secrets which can be used in masking secret properties |
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to be retruned by any API. The default value is as per the config however admin |
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users have the ability to override by passing in a special query parameter |
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show_secrets. |
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:param request: Request object. |
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:rtype: ``bool`` |
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""" |
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mask_secrets = cfg.CONF.api.mask_secrets |
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show_secrets_param = self._get_query_param_value(request=request, |
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param_name=SHOW_SECRETS_QUERY_PARAM, |
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param_type='bool', |
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default_value=False) |
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if show_secrets and request_user_is_admin(request=request): |
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mask_secrets = False |
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return mask_secrets |
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