202 lines
6.6 KiB
Python
202 lines
6.6 KiB
Python
# Copyright 2013 - Mirantis, Inc.
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# Copyright 2016 - StackStorm, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# 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 base64
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import copy
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import logging
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import os
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from oslo_utils import importutils
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import requests
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AUTH_TOKEN = 'auth_token'
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SESSION = 'session'
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CACERT = 'cacert'
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CERT_FILE = 'cert'
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CERT_KEY = 'key'
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INSECURE = 'insecure'
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PROJECT_ID = 'project_id'
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USER_ID = 'user_id'
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REGION_NAME = 'region_name'
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TARGET_AUTH_TOKEN = 'target_auth_token'
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TARGET_SESSION = 'target_session'
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TARGET_AUTH_URI = 'target_auth_url'
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TARGET_PROJECT_ID = 'target_project_id'
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TARGET_USER_ID = 'target_user_id'
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TARGET_INSECURE = 'target_insecure'
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TARGET_SERVICE_CATALOG = 'target_service_catalog'
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TARGET_REGION_NAME = 'target_region_name'
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TARGET_USER_DOMAIN_NAME = 'target_user_domain_name'
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TARGET_PROJECT_DOMAIN_NAME = 'target_project_domain_name'
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osprofiler_web = importutils.try_import("osprofiler.web")
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LOG = logging.getLogger(__name__)
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def log_request(func):
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def decorator(self, *args, **kwargs):
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resp = func(self, *args, **kwargs)
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LOG.debug("HTTP %s %s %d", resp.request.method, resp.url,
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resp.status_code)
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return resp
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return decorator
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class HTTPClient(object):
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def __init__(self, base_url, **kwargs):
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self.base_url = base_url
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self.session = kwargs.get('session')
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if not self.session:
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self.session = requests.Session()
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self.auth_token = kwargs.get(AUTH_TOKEN)
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self.project_id = kwargs.get(PROJECT_ID)
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self.user_id = kwargs.get(USER_ID)
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self.cacert = kwargs.get(CACERT)
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self.insecure = kwargs.get(INSECURE, False)
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self.region_name = kwargs.get(REGION_NAME)
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self.ssl_options = {}
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self.target_session = kwargs.get(TARGET_SESSION)
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self.target_auth_token = kwargs.get(TARGET_AUTH_TOKEN)
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self.target_auth_uri = kwargs.get(TARGET_AUTH_URI)
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self.target_user_id = kwargs.get(TARGET_USER_ID)
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self.target_project_id = kwargs.get(TARGET_PROJECT_ID)
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self.target_service_catalog = kwargs.get(TARGET_SERVICE_CATALOG)
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self.target_region_name = kwargs.get(TARGET_REGION_NAME)
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self.target_insecure = kwargs.get(TARGET_INSECURE)
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self.target_user_domain_name = kwargs.get(TARGET_USER_DOMAIN_NAME)
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self.target_project_domain_name = kwargs.get(
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TARGET_PROJECT_DOMAIN_NAME
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)
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if self.base_url.startswith('https'):
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if self.cacert and not os.path.exists(self.cacert):
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raise ValueError('Unable to locate cacert file '
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'at %s.' % self.cacert)
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if self.cacert and self.insecure:
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LOG.warning('Client is set to not verify even though '
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'cacert is provided.')
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if self.insecure:
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self.ssl_options['verify'] = False
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else:
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if self.cacert:
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self.ssl_options['verify'] = self.cacert
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else:
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self.ssl_options['verify'] = True
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self.ssl_options['cert'] = (
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kwargs.get(CERT_FILE),
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kwargs.get(CERT_KEY)
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)
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@log_request
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def get(self, url, headers=None):
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options = self._get_request_options('get', headers)
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return self.session.get(self.base_url + url, **options)
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@log_request
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def post(self, url, body, headers=None):
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options = self._get_request_options('post', headers)
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return self.session.post(self.base_url + url, data=body, **options)
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@log_request
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def put(self, url, body, headers=None):
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options = self._get_request_options('put', headers)
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return self.session.put(self.base_url + url, data=body, **options)
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@log_request
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def delete(self, url, headers=None):
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options = self._get_request_options('delete', headers)
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return self.session.delete(self.base_url + url, **options)
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def _get_request_options(self, method, headers):
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headers = self._update_headers(headers)
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if method in ['post', 'put']:
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content_type = headers.get('content-type', 'application/json')
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headers['content-type'] = content_type
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options = copy.deepcopy(self.ssl_options)
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options['headers'] = headers
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return options
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def _update_headers(self, headers):
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if not headers:
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headers = {}
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if isinstance(self.session, requests.Session):
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if self.auth_token:
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headers['X-Auth-Token'] = self.auth_token
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if self.project_id:
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headers['X-Project-Id'] = self.project_id
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if self.user_id:
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headers['X-User-Id'] = self.user_id
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if self.region_name:
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headers['X-Region-Name'] = self.region_name
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if self.target_auth_token:
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headers['X-Target-Auth-Token'] = self.target_auth_token
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if self.target_auth_uri:
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headers['X-Target-Auth-Uri'] = self.target_auth_uri
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if self.target_project_id:
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headers['X-Target-Project-Id'] = self.target_project_id
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if self.target_user_id:
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headers['X-Target-User-Id'] = self.target_user_id
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if self.target_insecure:
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# Note(akovi): due to changes in requests, this parameter
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# must be a string. Basically, it is a truthy value on
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# the server side.
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headers['X-Target-Insecure'] = str(self.target_insecure)
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if self.target_region_name:
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headers['X-Target-Region-Name'] = self.target_region_name
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if self.target_user_domain_name:
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headers['X-Target-User-Domain-Name'] = self.target_user_domain_name
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if self.target_project_domain_name:
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h_name = 'X-Target-Project-Domain-Name'
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headers[h_name] = self.target_project_domain_name
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if self.target_service_catalog:
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headers['X-Target-Service-Catalog'] = base64.b64encode(
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self.target_service_catalog.encode('utf-8')
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)
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if osprofiler_web:
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# Add headers for osprofiler.
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headers.update(osprofiler_web.get_trace_id_headers())
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return headers
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