kopia lustrzana https://github.com/tmsmr/xmpp-webhook
72 wiersze
1.5 KiB
Go
72 wiersze
1.5 KiB
Go
package main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"io/ioutil"
|
|
"net/http"
|
|
)
|
|
|
|
// interface for parser functions (grafana, prometheus, ...)
|
|
type parserFunc func(*http.Request) (string, error)
|
|
|
|
type messageHandler struct {
|
|
messages chan<- string // chan to xmpp client
|
|
parserFunc parserFunc
|
|
}
|
|
|
|
// http request handler
|
|
func (h *messageHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
|
// parse/generate message from http request
|
|
m, err := h.parserFunc(r)
|
|
if err != nil {
|
|
w.WriteHeader(http.StatusInternalServerError)
|
|
}
|
|
// send message to xmpp client
|
|
h.messages <- m
|
|
w.WriteHeader(http.StatusNoContent)
|
|
}
|
|
|
|
// returns new handler with a given parser function
|
|
func newMessageHandler(m chan<- string, f parserFunc) *messageHandler {
|
|
return &messageHandler{
|
|
messages: m,
|
|
parserFunc: f,
|
|
}
|
|
}
|
|
|
|
/*************
|
|
GRAFANA PARSER
|
|
*************/
|
|
func grafanaParserFunc(r *http.Request) (string, error) {
|
|
// get alert data from request
|
|
body, err := ioutil.ReadAll(r.Body)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
// grafana alert struct
|
|
alert := &struct {
|
|
Title string `json:"title"`
|
|
RuleURL string `json:"ruleUrl"`
|
|
State string `json:"state"`
|
|
Message string `json:"message"`
|
|
}{}
|
|
|
|
// parse body into the alert struct
|
|
err = json.Unmarshal(body, &alert)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
// contruct alert message
|
|
var message string
|
|
switch alert.State {
|
|
case "ok":
|
|
message = "8-) " + alert.Title
|
|
default:
|
|
message = ":'-( " + alert.Title + "\n" + alert.Message + "\n" + alert.RuleURL
|
|
}
|
|
|
|
return message, nil
|
|
}
|