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// Copyright 2018 Open Networking Foundation
//
// 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.
package main
import (
"bytes"
"encoding/json"
"fmt"
"net/http"
"os"
"regexp"
"io/ioutil"
)
const RF_EVENTSERVICE = "/redfish/v1/EventService/"
const RF_SUBSCRIPTION = RF_EVENTSERVICE + "Subscriptions/"
func (s *Server) add_subscription(ip string, event string) (rtn bool) {
rtn = false
destip := os.Getenv("EVENT_NOTIFICATION_DESTIP") + ":" + os.Getenv("DEVICE_MANAGEMENT_DESTPORT")
subscrpt_info := map[string]interface{}{"Context": "TBD-" + destip, "Protocol": "Redfish"}
subscrpt_info["Name"] = event + " event subscription"
subscrpt_info["Destination"] = RF_DEFAULT_PROTOCOL + destip
subscrpt_info["EventTypes"] = []string{event}
sRequestJson, err := json.Marshal(subscrpt_info)
uri := RF_DEFAULT_PROTOCOL + ip + RF_SUBSCRIPTION
client := s.httpclient
resp, err := client.Post(uri, CONTENT_TYPE, bytes.NewBuffer(sRequestJson))
if resp != nil {
defer resp.Body.Close()
}
if err != nil {
fmt.Println(err)
return
}
if resp.StatusCode != 201 {
result := make(map[string]interface{})
json.NewDecoder(resp.Body).Decode(&result)
fmt.Println(result)
fmt.Println(result["data"])
fmt.Println("Add ", event, " subscription failed. HTTP response status: ", resp.Status)
return
}
rtn = true
loc := resp.Header["Location"]
re := regexp.MustCompile(`/(\w+)$`)
match := re.FindStringSubmatch(loc[0])
s.devicemap[ip].Subscriptions[event] = match[1]
fmt.Println("Subscription", event, "id", match[1], "was successfully added")
return
}
func (s *Server) remove_subscription(ip string, event string) bool {
id := s.devicemap[ip].Subscriptions[event]
uri := RF_DEFAULT_PROTOCOL + ip + RF_SUBSCRIPTION + id
req, _ := http.NewRequest("DELETE", uri, nil)
resp, err := http.DefaultClient.Do(req)
if resp != nil {
defer resp.Body.Close()
}
if err != nil {
fmt.Println(err)
return false
}
if code := resp.StatusCode; code < 200 && code > 299 {
result := make(map[string]interface{})
json.NewDecoder(resp.Body).Decode(&result)
fmt.Println(result)
fmt.Println(result["data"])
fmt.Println("Remove subscription failed. HTTP response status:", resp.Status)
return false
}
delete(s.devicemap[ip].Subscriptions, event)
fmt.Println("Subscription id", id, "was successfully removed")
return true
}
func (s *Server) get_event_types(ip string) (eventtypes []string ) {
resp, err := http.Get(RF_DEFAULT_PROTOCOL + ip + RF_EVENTSERVICE)
fmt.Println("get_event_types")
if resp != nil {
defer resp.Body.Close()
}
if err != nil {
fmt.Println(err)
return
}
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
fmt.Println(err)
return
}
m := map[string]interface{}{}
err = json.Unmarshal([]byte(body), &m)
if err != nil {
fmt.Println(err)
return
}
e := m["EventTypesForSubscription"].([]interface{})
fmt.Printf("supported event types %v\n", e)
for _, val := range e {
eventtypes = append(eventtypes, val.(string))
}
return
}