diff options
Diffstat (limited to 'share/newton_base/proxy/services.py')
| -rw-r--r-- | share/newton_base/proxy/services.py | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/share/newton_base/proxy/services.py b/share/newton_base/proxy/services.py new file mode 100644 index 00000000..3c543bf9 --- /dev/null +++ b/share/newton_base/proxy/services.py @@ -0,0 +1,273 @@ +# Copyright (c) 2017-2018 Wind River System Inc. +# +# 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 +# limitations under the License. +import logging +import json +import traceback + +from keystoneauth1.exceptions import HttpError +import re +from rest_framework.permissions import BasePermission +from rest_framework.response import Response +from rest_framework import status +from rest_framework.views import APIView + +from newton.proxy.views.proxy_utils import ProxyUtils +from newton.pub.exceptions import VimDriverNewtonException +from newton.pub.msapi import extsys +from newton.requests.views.util import VimDriverUtils + +logger = logging.getLogger(__name__) + +DEBUG=True + + +class HasValidToken(BasePermission): + + def has_permission(self, request, view): + logger.debug("HasValidToken--has_permission::META> %s" % request.META) + token = request.META.get('HTTP_X_AUTH_TOKEN', None) + if token: + state, metadata = VimDriverUtils.get_token_cache(token) + if state: + return True + return False + + +class Services(APIView): + permission_classes = (HasValidToken,) + + def __init__(self): + self._logger = logger + + def _get_token(self, request): + return request.META.get('HTTP_X_AUTH_TOKEN', None) + + def _get_resource_and_metadata(self, servicetype, metadata_catalog, requri): + real_prefix = None + proxy_prefix = None + suffix = None + if servicetype and metadata_catalog: + metadata_catalog = json.loads(metadata_catalog) + service_metadata = metadata_catalog.get(servicetype, None) + if service_metadata: + real_prefix = service_metadata['prefix'] + proxy_prefix = service_metadata['proxy_prefix'] + suffix = service_metadata['suffix'] + + if not real_prefix or not proxy_prefix: + raise VimDriverNewtonException(message="internal state error", + content="invalid cached metadata", + status_code=status.HTTP_500_INTERNAL_SERVER_ERROR) + + if requri == suffix: + requri = None + + if suffix and requri: + # remove the suffix from the requri to avoid duplicated suffix in real request uri later + tmp_pattern = re.compile(suffix) + requri = tmp_pattern.sub('', requri) + + req_resource = '' + if requri and requri != '': + req_resource = "/" if re.match(r'//', requri) else '' + requri + return req_resource, metadata_catalog + + def _do_action(self, action, request, vim_id, servicetype, requri): + tmp_auth_token = self._get_token(request) + try: + #special handling of compute/v2 request from APPC, temp solution for A release + if servicetype == 'compute': + tmp_pattern = re.compile(r'^v2/(.+)') + requri = tmp_pattern.sub(r'v2.1/' + r'\1', requri) + + + vim = VimDriverUtils.get_vim_info(vim_id) + # fetch the auth_state out of cache + auth_state, metadata_catalog = VimDriverUtils.get_token_cache(tmp_auth_token) + req_resource, metadata_catalog = self._get_resource_and_metadata(servicetype, metadata_catalog, requri) + sess = VimDriverUtils.get_session(vim, auth_state=auth_state) + + cloud_owner, regionid = extsys.decode_vim_id(vim_id) + interface = 'public' + service = { + 'service_type': servicetype, + 'interface': interface, + 'region_id': regionid + } + + querystr = VimDriverUtils.get_query_part(request) + if querystr: + req_resource += "?" + querystr + + self._logger.debug("hhb service " + action + " request uri %s" % (req_resource)) + if(action == "get"): + resp = sess.get(req_resource, endpoint_filter=service, + headers={"Content-Type": "application/json", + "Accept": "application/json"}) + elif(action == "post"): + resp = sess.post(req_resource, data=json.JSONEncoder().encode(request.data), + endpoint_filter=service, + headers={"Content-Type": "application/json", + "Accept": "application/json"}) + elif(action == "put"): + resp = sess.put(req_resource, data=json.JSONEncoder().encode(request.data), + endpoint_filter=service, + headers={"Content-Type": "application/json", + "Accept": "application/json"}) + elif(action == "patch"): + resp = sess.patch(req_resource, data=json.JSONEncoder().encode(request.data), + endpoint_filter=service, + headers={"Content-Type": "application/json", + "Accept": "application/json"}) + elif (action == "delete"): + resp = sess.delete(req_resource, endpoint_filter=service, + headers={"Content-Type": "application/json", + "Accept": "application/json"}) + content = resp.json() if resp.content else None + self._logger.debug("service " + action + " response: %s, %s" % (resp.status_code, content)) + + if (action == "delete"): + return Response(headers={'X-Subject-Token': tmp_auth_token}, status=resp.status_code) + else: + content = ProxyUtils.update_prefix(metadata_catalog, content) + if (action == "get"): + if requri == '/v3/auth/catalog' and content and content.get("catalog"): + content['catalog'] = ProxyUtils.update_catalog_dnsaas( + vim_id, content['catalog'], self.proxy_prefix, vim) + return Response(headers={'X-Subject-Token': tmp_auth_token}, data=content, status=resp.status_code) + + except VimDriverNewtonException as e: + return Response(data={'error': e.content}, status=e.status_code) + except HttpError as e: + self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json())) + return Response(data=e.response.json(), status=e.http_status) + except Exception as e: + self._logger.error(traceback.format_exc()) + return Response(data={'error': str(e)}, + status=status.HTTP_500_INTERNAL_SERVER_ERROR) + + def head(self, request, vimid="", servicetype="", requri=""): + #self._logger.debug("Services--head::META> %s" % request.META) + self._logger.debug("Services--head::data> %s" % request.data) + self._logger.debug("Services--head::vimid, servicetype, requri> %s,%s,%s" + % (vimid, servicetype, requri)) + + token = self._get_token(request) + try: + vim = VimDriverUtils.get_vim_info(vimid) + auth_state, metadata_catalog = VimDriverUtils.get_token_cache(token) + sess = VimDriverUtils.get_session(vim, auth_state=auth_state) + + req_resource = '' + if requri and requri != '': + req_resource = "/" if re.match(r'//', requri) else ''+ requri + + cloud_owner, regionid = extsys.decode_vim_id(vimid) + interface = 'public' + service = {'service_type': servicetype, + 'interface': interface, + 'region_id': regionid} + + self._logger.debug("service head request uri %s" % (req_resource)) + + resp = sess.head(req_resource, endpoint_filter=service) + content = resp.json() if resp.content else None + self._logger.debug("service head response: %s, %s" % (resp.status_code, content)) + + return Response(headers={'X-Subject-Token': token}, data=content, status=resp.status_code) + except VimDriverNewtonException as e: + return Response(data={'error': e.content}, status=e.status_code) + except HttpError as e: + self._logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json())) + return Response(data=e.response.json(), status=e.http_status) + except Exception as e: + self._logger.error(traceback.format_exc()) + return Response(data={'error': str(e)}, + status=status.HTTP_500_INTERNAL_SERVER_ERROR) + + def get(self, request, vimid="", servicetype="", requri=""): + #self._logger.debug("Services--get::META> %s" % request.META) + self._logger.debug("Services--get::data> %s" % request.data) + self._logger.debug("Services--get::vimid, servicetype, requri> %s,%s,%s" + % (vimid, servicetype, requri)) + return self._do_action("get", request, vimid, servicetype, requri) + + def post(self, request, vimid="", servicetype="", requri=""): + #self._logger.debug("Services--post::META> %s" % request.META) + self._logger.debug("Services--post::data> %s" % request.data) + self._logger.debug("Services--post::vimid, servicetype, requri> %s,%s,%s" + % (vimid, servicetype, requri)) + + return self._do_action("post", request, vimid, servicetype, requri) + + def put(self, request, vimid="", servicetype="", requri=""): + #self._logger.debug("Services--put::META> %s" % request.META) + self._logger.debug("Services--put::data> %s" % request.data) + self._logger.debug("Services--put::vimid, servicetype, requri> %s,%s,%s" + % (vimid, servicetype, requri)) + return self._do_action("put", request, vimid, servicetype, requri) + + def patch(self, request, vimid="", servicetype="", requri=""): + #self._logger.debug("Services--patch::META> %s" % request.META) + self._logger.debug("Services--patch::data> %s" % request.data) + self._logger.debug("Services--patch::vimid, servicetype, requri> %s,%s,%s" + % (vimid, servicetype, requri)) + return self._do_action("patch", request, vimid, servicetype, requri) + + def delete(self, request, vimid="", servicetype="", requri=""): + #self._logger.debug("Services--delete::META> %s" % request.META) + self._logger.debug("Services--delete::data> %s" % request.data) + self._logger.debug("Services--delete::vimid, servicetype, requri> %s,%s,%s" + % (vimid, servicetype, requri)) + return self._do_action("delete", request, vimid, servicetype, requri) + + +class GetTenants(Services): + ''' + Backward compatible API for /v2.0/tenants + ''' + + def __init__(self): + self._logger = logger + + def get(self, request, vimid="", servicetype="identity", requri='projects'): + #self._logger.debug("GetTenants--get::META> %s" % request.META) + self._logger.debug("GetTenants--get::data> %s" % request.data) + self._logger.debug("GetTenants--get::vimid, servicetype, requri> %s,%s,%s" + % (vimid, servicetype, requri)) + + tmp_auth_token = request.META.get('HTTP_X_AUTH_TOKEN', None) + + resp = super(GetTenants,self).get(request, vimid, servicetype, requri) + if resp.status_code == status.HTTP_200_OK: + content = resp.data + return Response(headers={'X-Subject-Token': tmp_auth_token}, data={'tenants': content['projects'],'tenants_links':[]}, + status=resp.status_code) + else: + return resp + + def head(self, request, vimid="", servicetype="", requri=""): + return Response(data={'error': 'unsupported operation'}, status=status.HTTP_400_BAD_REQUEST) + + def post(self, request, vimid="", servicetype="", requri=""): + return Response(data={'error': 'unsupported operation'}, status=status.HTTP_400_BAD_REQUEST) + + def put(self, request, vimid="", servicetype="", requri=""): + return Response(data={'error': 'unsupported operation'}, status=status.HTTP_400_BAD_REQUEST) + + def patch(self, request, vimid="", servicetype="", requri=""): + return Response(data={'error': 'unsupported operation'}, status=status.HTTP_400_BAD_REQUEST) + + def delete(self, request, vimid="", servicetype="", requri=""): + return Response(data={'error': 'unsupported operation'}, status=status.HTTP_400_BAD_REQUEST) |