Fix: Added CORS header to REST API to allow cross-domain calls from modern browsers.

[osm/vim-emu.git] / src / emuvim / api / rest / monitor.py

diff --git a/src/emuvim/api/rest/monitor.py b/src/emuvim/api/rest/monitor.py
index b1edbc3..5558b87 100755 (executable)
--- a/src/emuvim/api/rest/monitor.py
+++ b/src/emuvim/api/rest/monitor.py
@@ -1,3 +1,37 @@
+"""
+Copyright (c) 2015 SONATA-NFV and Paderborn University
+ALL RIGHTS RESERVED.
+
+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.
+
+Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
+nor the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+This work has been performed in the framework of the SONATA project,
+funded by the European Commission under Grant number 671517 through
+the Horizon 2020 and 5G-PPP programmes. The authors would like to
+acknowledge the contributions of their colleagues of the SONATA
+partner consortium (www.sonata-nfv.eu).
+"""
+
+"""
+Distributed Cloud Emulator (dcemulator)
+Networking and monitoring functions
+(c) 2015 by Steven Van Rossem <steven.vanrossem@intec.ugent.be>
+"""
+
 import logging
 from flask_restful import Resource
 from flask import request
@@ -5,6 +39,8 @@ import json
 
 logging.basicConfig(level=logging.INFO)
 
+CORS_HEADER = {'Access-Control-Allow-Origin': '*'}
+
 net = None
 
 
@@ -19,25 +55,25 @@ class MonitorInterfaceAction(Resource):
     """
     global net
 
-    def put(self, vnf_name, vnf_interface, metric):
+    def put(self, vnf_name, vnf_interface=None, metric='tx_packets'):
         logging.debug("REST CALL: start monitor VNF interface")
         try:
             c = net.monitor_agent.setup_metric(vnf_name, vnf_interface, metric)
             # return monitor message response
-            return  str(c), 200
+            return  str(c), 200, CORS_HEADER
         except Exception as ex:
             logging.exception("API error.")
-            return ex.message, 500
+            return ex.message, 500, CORS_HEADER
 
-    def delete(self, vnf_name, vnf_interface, metric):
+    def delete(self, vnf_name, vnf_interface=None, metric='tx_packets'):
         logging.debug("REST CALL: stop monitor VNF interface")
         try:
             c = net.monitor_agent.stop_metric(vnf_name, vnf_interface, metric)
             # return monitor message response
-            return str(c), 200
+            return str(c), 200, CORS_HEADER
         except Exception as ex:
             logging.exception("API error.")
-            return ex.message, 500
+            return ex.message, 500, CORS_HEADER
 
 
 class MonitorFlowAction(Resource):
@@ -51,22 +87,22 @@ class MonitorFlowAction(Resource):
     """
     global net
 
-    def put(self, vnf_name, vnf_interface, metric, cookie):
+    def put(self, vnf_name, vnf_interface=None, metric='tx_packets', cookie=0):
         logging.debug("REST CALL: start monitor VNF interface")
         try:
             c = net.monitor_agent.setup_flow(vnf_name, vnf_interface, metric, cookie)
             # return monitor message response
-            return str(c), 200
+            return str(c), 200, CORS_HEADER
         except Exception as ex:
             logging.exception("API error.")
-            return ex.message, 500
+            return ex.message, 500, CORS_HEADER
 
-    def delete(self, vnf_name, vnf_interface, metric, cookie):
+    def delete(self, vnf_name, vnf_interface=None, metric='tx_packets', cookie=0):
         logging.debug("REST CALL: stop monitor VNF interface")
         try:
             c = net.monitor_agent.stop_flow(vnf_name, vnf_interface, metric, cookie)
             # return monitor message response
-            return str(c), 200
+            return str(c), 200, CORS_HEADER
         except Exception as ex:
             logging.exception("API error.")
-            return ex.message, 500
\ No newline at end of file
+            return ex.message, 500, CORS_HEADER