# Copyright (c) 2017 Wind River Systems, 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.services import Services 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 DnsaasDelegate(Services): ''' DNSaaS delegate service ''' def __init__(self): self._logger = logger def _do_action(self, action, request, vim_id, servicetype, requri): tmp_auth_token = self._get_token(request) try: # fetch the auth_state out of cache auth_state_str, metadata_catalog_str = VimDriverUtils.get_token_cache(tmp_auth_token) if not auth_state_str: #invalid token return Response(data={'error': "request token %s is not valid" % (tmp_auth_token)}, status=status.HTTP_404_NOT_FOUND) # get project name from auth_state auth_state = json.loads(auth_state_str) if not auth_state: # invalid token return Response(data={'error': "request token %s is broken" % (tmp_auth_token)}, status=status.HTTP_404_NOT_FOUND) tenant_name = auth_state['body']['token']['project']['name'] #find out the delegated DNSaaS provider viminfo = VimDriverUtils.get_vim_info(vim_id) if not viminfo: return Response(data={'error': "vimid %s is not found" % (vim_id)}, status=status.HTTP_404_NOT_FOUND) cloud_dns_delegate_info = None cloud_extra_info_str = viminfo.get('cloud_extra_info') if cloud_extra_info_str: cloud_extra_info = json.loads(cloud_extra_info_str) cloud_dns_delegate_info = cloud_extra_info.get("dns-delegate") if not cloud_dns_delegate_info \ or not cloud_dns_delegate_info.get("cloud-owner") \ or not cloud_dns_delegate_info.get("cloud-region-id"): return Response(data={'error': "dns-delegate for vimid %s is not configured" % (vim_id)}, status=status.HTTP_404_NOT_FOUND) vimid_delegate = cloud_dns_delegate_info.get("cloud-owner") \ + "_" \ + cloud_dns_delegate_info.get("cloud-region-id") #now forward request to delegated DNS service endpoint vim = VimDriverUtils.get_vim_info(vimid_delegate) if not vim: return Response(data={'error': "vimid %s is not found" % (vimid_delegate)}, status=status.HTTP_404_NOT_FOUND) sess = VimDriverUtils.get_session(vim, tenantname=tenant_name, auth_state=None) cloud_owner, regionid = extsys.decode_vim_id(vimid_delegate) interface = 'public' service = { 'service_type': servicetype, 'interface': interface, 'region_id': regionid } req_resource = requri querystr = VimDriverUtils.get_query_part(request) if querystr: req_resource += "?" + querystr self._logger.debug("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}, data=content, status=resp.status_code) return Response(headers={'X-Subject-Token': tmp_auth_token}, 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="dns-delegate", requri=""): self._logger.debug("DnsaasDelegate--get::META> %s" % request.META) self._logger.debug("DnsaasDelegate--get::data> %s" % request.data) self._logger.debug("DnsaasDelegate--get::vimid, servicetype, requri> %s,%s,%s" % (vimid, servicetype, requri)) return self._do_action("get", request, vimid, "dns", requri) def head(self, request, vimid="", servicetype="dns-delegate", requri=""): self._logger.debug("DnsaasDelegate--get::META> %s" % request.META) self._logger.debug("DnsaasDelegate--get::data> %s" % request.data) self._logger.debug("DnsaasDelegate--get::vimid, servicetype, requri> %s,%s,%s" % (vimid, servicetype, requri)) return self._do_action("head", request, vimid, "dns", requri) def post(self, request, vimid="", servicetype="dns-delegate", requri=""): self._logger.debug("DnsaasDelegate--get::META> %s" % request.META) self._logger.debug("DnsaasDelegate--get::data> %s" % request.data) self._logger.debug("DnsaasDelegate--get::vimid, servicetype, requri> %s,%s,%s" % (vimid, servicetype, requri)) return self._do_action("post", request, vimid, "dns", requri) def put(self, request, vimid="", servicetype="dns-delegate", requri=""): self._logger.debug("DnsaasDelegate--get::META> %s" % request.META) self._logger.debug("DnsaasDelegate--get::data> %s" % request.data) self._logger.debug("DnsaasDelegate--get::vimid, servicetype, requri> %s,%s,%s" % (vimid, servicetype, requri)) return self._do_action("put", request, vimid, "dns", requri) def patch(self, request, vimid="", servicetype="dns-delegate", requri=""): self._logger.debug("DnsaasDelegate--get::META> %s" % request.META) self._logger.debug("DnsaasDelegate--get::data> %s" % request.data) self._logger.debug("DnsaasDelegate--get::vimid, servicetype, requri> %s,%s,%s" % (vimid, servicetype, requri)) return self._do_action("patch", request, vimid, "dns", requri) def delete(self, request, vimid="", servicetype="dns-delegate", requri=""): self._logger.debug("DnsaasDelegate--get::META> %s" % request.META) self._logger.debug("DnsaasDelegate--get::data> %s" % request.data) self._logger.debug("DnsaasDelegate--get::vimid, servicetype, requri> %s,%s,%s" % (vimid, servicetype, requri)) return self._do_action("delete", request, vimid, "dns", requri)