func main() {
esTraffic := eventsource.New()
esSystemData := eventsource.New()
tm := monitor.NewMonitor(&traffic.Monitor{}, 500*time.Millisecond)
sm := monitor.NewMonitor(&system.Monitor{}, 10*time.Second)
go tm.Start()
go sm.Start()
go trafficServer(esTraffic, tm)
go systemDataServer(esSystemData, sm)
srv := &http.Server{
ReadTimeout: 2 * time.Second,
WriteTimeout: 2 * time.Second,
Addr: "192.168.1.1:8000",
}
http.HandleFunc("/", indexHandler)
http.HandleFunc("/nat.json", natJsonHandler)
http.HandleFunc("/memory_usage.json", memoryUsageJsonHandler)
http.HandleFunc("/uuid", uuidHandler)
http.HandleFunc("/traffic_capture", trafficCaptureHandler)
http.HandleFunc("/stop_capture", trafficCaptureStopHandler)
http.Handle("/live/traffic_data/", esTraffic)
http.Handle("/live/system_data/", esSystemData)
http.HandleFunc("/resolve_ip/", resolveIPHandler)
err := srv.ListenAndServe()
if err != nil {
panic("ListenANdServe: " + err.Error())
}
}
func main() {
tm := monitor.NewMonitor(&traffic.Monitor{}, 500*time.Millisecond)
ch := make(chan interface{})
tm.RegisterChannel(ch)
go tm.Start()
hosts := make(map[string]string)
for {
lines := &lineColorizer{}
stats := (<-ch).([]traffic.ProgressiveStat)
os.Stdout.WriteString("\033[2J\033[;H")
tabWriter := &tabwriter.Writer{}
tabWriter.Init(lines, 0, 0, 2, ' ', 0)
// The \b are a messy hack to remove the spaces that the
// tabwriter inserts because it counts ansi colors as actual
// characters
tabWriter.Write([]byte("Host\t Down\t Up\t│ Total down\t\b\b\bTotal up\n"))
lines.colors = append(lines.colors, 255)
sort.Sort(statSlice(stats))
for index, stat := range stats {
var color_index int
if stat.BPSIn == 0 && stat.BPSOut == 0 {
color_index = 0
} else if float64(stat.BPSIn)/maxIn > float64(stat.BPSOut)/maxOut {
// IN is the culprit
color_index = int(stat.BPSIn/(maxIn/uint64(len(colors))-1) + 1)
} else {
// OUT is the culprit
color_index = int(stat.BPSOut/(maxOut/uint64(len(colors))-1) + 1)
}
if color_index >= len(colors) {
color_index = len(colors) - 1
}
if index == len(stats)-1 {
lines.colors = append(lines.colors, 255)
tabWriter.Write([]byte("──────────────────────────────────────────────────────────────┼───────────────────────\n"))
}
lines.colors = append(lines.colors, colors[color_index])
host, ok := hosts[stat.Host]
if !ok {
if stat.Host == "total" {
host = "total"
} else {
host = lookup.Resolve(net.ParseIP(stat.Host), false)
hosts[stat.Host] = host
}
}
tabWriter.Write([]byte(fmt.Sprintf("%-30.30s\t%11s/s\t%11s/s\t\033[39m│ %10s\t%10s\n",
host,
formatByteCount(stat.BPSIn),
formatByteCount(stat.BPSOut),
formatByteCount(stat.In),
formatByteCount(stat.Out))))
}
// fmt.Print(buf.String())
tabWriter.Flush()
os.Stdout.WriteString(lines.String())
}
}