67 lines
2.0 KiB
Go
67 lines
2.0 KiB
Go
package main
|
|
|
|
import (
|
|
"flag"
|
|
"net/http"
|
|
"os"
|
|
|
|
"github.com/gorilla/handlers"
|
|
)
|
|
|
|
// Check if a byte is character for number
|
|
func isNumeric(b byte) bool {
|
|
return b >= byte('0') && b <= byte('9')
|
|
}
|
|
|
|
// Default handler, returns 500 Internal Server Error
|
|
func invalidHandler(httpW http.ResponseWriter, httpR *http.Request) {
|
|
httpW.WriteHeader(http.StatusInternalServerError)
|
|
httpW.Write([]byte("Invalid Request\n"))
|
|
}
|
|
|
|
type settingType struct {
|
|
birdSocket string
|
|
bird6Socket string
|
|
listen string
|
|
}
|
|
|
|
var setting settingType
|
|
|
|
// Wrapper of tracer
|
|
func main() {
|
|
// Prepare default socket paths, use environment variable if possible
|
|
var settingDefault = settingType{
|
|
"/var/run/bird/bird.ctl",
|
|
"/var/run/bird/bird6.ctl",
|
|
":8000",
|
|
}
|
|
|
|
if birdSocketEnv := os.Getenv("BIRD_SOCKET"); birdSocketEnv != "" {
|
|
settingDefault.birdSocket = birdSocketEnv
|
|
}
|
|
if bird6SocketEnv := os.Getenv("BIRD6_SOCKET"); bird6SocketEnv != "" {
|
|
settingDefault.bird6Socket = bird6SocketEnv
|
|
}
|
|
if listenEnv := os.Getenv("BIRDLG_LISTEN"); listenEnv != "" {
|
|
settingDefault.listen = listenEnv
|
|
}
|
|
|
|
// Allow parameters to override environment variables
|
|
birdParam := flag.String("bird", settingDefault.birdSocket, "socket file for bird, set either in parameter or environment variable BIRD_SOCKET")
|
|
bird6Param := flag.String("bird6", settingDefault.bird6Socket, "socket file for bird6, set either in parameter or environment variable BIRD6_SOCKET")
|
|
listenParam := flag.String("listen", settingDefault.listen, "listen address, set either in parameter or environment variable BIRDLG_LISTEN")
|
|
flag.Parse()
|
|
|
|
setting.birdSocket = *birdParam
|
|
setting.bird6Socket = *bird6Param
|
|
setting.listen = *listenParam
|
|
|
|
// Start HTTP server
|
|
http.HandleFunc("/", invalidHandler)
|
|
http.HandleFunc("/bird", birdHandler)
|
|
http.HandleFunc("/bird6", bird6Handler)
|
|
http.HandleFunc("/traceroute", tracerouteIPv4Wrapper)
|
|
http.HandleFunc("/traceroute6", tracerouteIPv6Wrapper)
|
|
http.ListenAndServe(*listenParam, handlers.LoggingHandler(os.Stdout, http.DefaultServeMux))
|
|
}
|