Move dnsaasdelegate from newton to newton_base

Change-Id: I7cb81a290b2fb51592c1eae9ca3ff4d95483e2a3
Issue-ID: MULTICLOUD-138
Signed-off-by: Huang Haibin <haibin.huang@intel.com>

2 files changed, 196 insertions, 1 deletions

diff --git a/ocata/ocata/proxy/urls.py b/ocata/ocata/proxy/urls.py
index ad0bb2cc..9a1b3cf4 100644
--- a/ocata/ocata/proxy/urls.py
+++ b/ocata/ocata/proxy/urls.py
@@ -17,7 +17,7 @@ from rest_framework.urlpatterns import format_suffix_patterns
 
 from ocata.proxy.views import identityV3
 from ocata.proxy.views import services
-from newton.proxy.views import dnsaasdelegate
+from newton_base.proxy import dnsaasdelegate
 
 urlpatterns = [
     #    url(r'^identity/v2)$',
diff --git a/share/newton_base/proxy/dnsaasdelegate.py b/share/newton_base/proxy/dnsaasdelegate.py
new file mode 100644
index 00000000..85bcbfde
--- /dev/null
+++ b/share/newton_base/proxy/dnsaasdelegate.py
@@ -0,0 +1,195 @@
+# Copyright (c) 2017-2018 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_base.proxy.services import Services
+
+from newton_base.proxy.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']
+            #tenant_id = auth_state['body']['token']['project']['id']
+
+            #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, tenant_name=tenant_name)
+
+            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}, status=resp.status_code)
+            else:
+                #content = ProxyUtils.update_dnsaas_project_id(content, tenant_id)
+                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 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)