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https://pagure.io/fm-orchestrator.git
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30daab024e
By surprise, ipsilon handed me back a response with no groups one time. Not sure why. But logging here can hopefully help us catch it next time.
127 lines
3.9 KiB
Python
127 lines
3.9 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (c) 2016 Red Hat, Inc.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in all
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# copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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#
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# Written by Jan Kaluza <jkaluza@redhat.com>
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"""Auth system based on the client certificate and FAS account"""
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from module_build_service.errors import Unauthorized
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from module_build_service import app, log
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import httplib2
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import json
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from six.moves.urllib.parse import urlencode
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def _json_loads(content):
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if not isinstance(content, str):
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content = content.decode('utf-8')
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return json.loads(content)
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client_secrets = None
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def _load_secrets():
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global client_secrets
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if client_secrets:
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return
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if not "OIDC_CLIENT_SECRETS" in app.config:
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log.warn("To support authorization, OIDC_CLIENT_SECRETS has to be set.")
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return
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secrets = _json_loads(open(app.config['OIDC_CLIENT_SECRETS'],
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'r').read())
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client_secrets = list(secrets.values())[0]
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def _get_token_info(token):
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"""
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Asks the token_introspection_uri for the validity of a token.
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"""
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if not client_secrets:
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return None
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request = {'token': token,
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'token_type_hint': 'Bearer',
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'client_id': client_secrets['client_id'],
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'client_secret': client_secrets['client_secret']}
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headers = {'Content-type': 'application/x-www-form-urlencoded'}
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resp, content = httplib2.Http().request(
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client_secrets['token_introspection_uri'], 'POST',
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urlencode(request), headers=headers)
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return _json_loads(content)
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def _get_user_info(token):
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"""
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Asks the userinfo_uri for more information on a user.
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"""
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if not client_secrets:
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return None
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headers = {'authorization': 'Bearer ' + token}
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resp, content = httplib2.Http().request(
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client_secrets['userinfo_uri'], 'GET',
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headers=headers)
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return _json_loads(content)
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def get_user(request):
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"""
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Returns the client's username and groups based on the OIDC token provided.
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"""
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_load_secrets()
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if not "oidc_token" in request.cookies:
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raise Unauthorized("Cannot verify OIDC token: No 'oidc_token' "
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"cookie found.")
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token = request.cookies["oidc_token"]
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try:
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data = _get_token_info(token)
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except Exception as e:
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error = "Cannot verify OIDC token: %s" % str(e)
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log.exception(error)
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raise Unauthorized(error)
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if not "active" in data or not data["active"]:
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raise Unauthorized("OIDC token invalid or expired.")
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try:
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extended_data = _get_user_info(token)
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except Exception as e:
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error = "Cannot verify determine user groups: %s" % str(e)
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log.exception(error)
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raise Unauthorized(error)
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try:
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groups = set(extended_data['groups'])
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except Exception as e:
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error = "Could not find groups in UserInfo from OIDC %s" % str(e)
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log.exception(extended_data)
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raise Unauthorized(error)
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return data["username"], groups
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