99 lines
2.6 KiB
Go
99 lines
2.6 KiB
Go
package main
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import (
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utils "anytunnel/at-common"
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"flag"
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"fmt"
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"strconv"
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"strings"
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"time"
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"github.com/codeskyblue/kexec"
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)
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func main() {
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host := flag.String("h", "127.0.0.1", "api host")
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port := flag.Int("p", 37081, "api port")
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interval := flag.Int("i", 3, "every interval seconds to reporting")
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interfaceName := flag.String("e", "eth0", "interface name")
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failSleep := flag.Int("s", 5, "sleep seconds when fail to reporting")
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pname := flag.String("n", "at-cluster", "program name to counting connections")
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flag.Parse()
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sleep := time.Duration(*failSleep)
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lastbytes := 0
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for {
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output, err := kexec.CommandString("netstat -atn|grep -v \"LISTEN\" | wc -l").CombinedOutput()
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if err != nil {
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fmt.Println(err)
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time.Sleep(time.Second * sleep)
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continue
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}
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sysCount, err := strconv.Atoi(strings.Trim(string(output), "\r\n"))
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if err != nil {
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fmt.Println(err)
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time.Sleep(time.Second * sleep)
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continue
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}
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output, err = kexec.CommandString(`netstat -atnp 2>/dev/null |grep -v "LISTEN" |grep ` + *pname + `| wc -l`).CombinedOutput()
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if err != nil {
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fmt.Println(err)
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time.Sleep(time.Second * sleep)
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continue
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}
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programCount, err := strconv.Atoi(strings.Trim(string(output), "\r\n"))
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if err != nil {
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fmt.Println(err)
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time.Sleep(time.Second * sleep)
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continue
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}
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output, err = kexec.CommandString(`cat /proc/net/dev |grep ` + *interfaceName).CombinedOutput()
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if err != nil {
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fmt.Println("exec cat /proc/net/dev ERR:", err)
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time.Sleep(time.Second * sleep)
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continue
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}
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arr := strings.Fields(string(output))
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bandwidth := 0
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if len(arr) > 1 {
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bytesIn, err := strconv.Atoi(arr[1])
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if err != nil {
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fmt.Println(err)
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time.Sleep(time.Second * sleep)
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continue
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}
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bytesOut, err := strconv.Atoi(arr[2])
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if err != nil {
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fmt.Println(err)
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time.Sleep(time.Second * sleep)
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continue
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}
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if lastbytes == 0 {
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lastbytes = bytesOut + bytesIn
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}
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bandwidth = (bytesOut + bytesIn - lastbytes) / (*interval)
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lastbytes = bytesOut + bytesIn
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}
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url := fmt.Sprintf("https://%s:%d/cluster/report", *host, *port)
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values := map[string]string{
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"sys_conn_number": strconv.Itoa(sysCount),
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"tunnel_conn_number": strconv.Itoa(programCount),
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"bandwidth": fmt.Sprintf("%d", bandwidth),
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}
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body, code, err := utils.HttpPost(url, values, nil)
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if err != nil {
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fmt.Println(err)
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time.Sleep(time.Second * sleep)
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continue
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}
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if code != 204 {
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fmt.Println("ERR:", code, body)
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time.Sleep(time.Second * sleep)
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continue
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}
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fmt.Println("report ok ,", sysCount, programCount, bandwidth)
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time.Sleep(time.Second * time.Duration(*interval))
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}
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}
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