/
main.go
128 lines (125 loc) · 2.64 KB
/
main.go
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package main
import (
"bufio"
"fmt"
"github.com/hamburghammer/rcon"
"github.com/sirupsen/logrus"
"github.com/urfave/cli/v2"
"go.uber.org/atomic"
"os"
"os/signal"
"regexp"
"strings"
"syscall"
"time"
)
func main() {
logrus.SetFormatter(&logrus.TextFormatter{ForceColors: true})
l := logrus.New()
app := &cli.App{
Name: "GRCON",
Usage: "connect to RCON server",
Flags: []cli.Flag{
&cli.StringFlag{
Name: "address",
Aliases: []string{"a", "addr"},
Usage: "RCON server address",
},
&cli.StringFlag{
Name: "password",
Aliases: []string{"p", "pwd", "pass"},
Usage: "password that uses to connect to RCON server",
},
},
Action: func(ctx *cli.Context) error {
addr := ctx.String("address")
pass := ctx.String("password")
if addr == "" || pass == "" {
return cli.Exit("invalid address and password", 1)
}
connectedChan := make(chan error)
var con *rcon.RemoteConsole
go func() {
var err error
if con, err = rcon.Dial(addr, pass); err != nil {
connectedChan <- cli.Exit(err.Error(), 1)
} else {
connectedChan <- nil
}
}()
wait(connectedChan, l)
running := atomic.Bool{}
running.Store(true)
go func() {
sc := bufio.NewScanner(os.Stdin)
reg := regexp.MustCompile(`#\x1b\x5b([^\x1b]*\x7e|[\x40-\x50])#`)
for running.Load() {
sc.Scan()
s := strings.ToValidUTF8(reg.ReplaceAllString(strings.TrimSpace(sc.Text()), ""), "")
if len(s) != 0 {
_, _ = con.Write(s)
}
}
}()
go func() {
for running.Load() {
resp, _, err := con.Read()
if err != nil {
if err.Error() == "EOF" {
l.Error(fmt.Errorf("server: EOF"))
running.Store(false)
break
}
l.Error(err)
continue
}
if resp != "" {
lines := strings.Split(resp, "\r\n")
for _, line := range lines {
if line != "" {
l.Info(line)
}
}
}
}
}()
go func() {
sigs := make(chan os.Signal, 2)
signal.Notify(sigs, syscall.SIGTERM, syscall.SIGINT)
<-sigs
running.Store(false)
}()
for running.Load() {
time.Sleep(time.Second / 10)
}
_ = con.Close()
return nil
},
}
if err := app.Run(os.Args); err != nil {
l.Fatal(err)
}
}
func wait(connectedChan chan error, l *logrus.Logger) {
rec := false
msgs := []string{".", "o", "0", "O"}
cur := 0
for !rec {
select {
case err := <-connectedChan:
rec = true
if err != nil {
l.Fatal(err)
} else {
l.Print("Connected.")
}
default:
print("Connecting " + msgs[cur] + "...\r")
cur++
if cur >= len(msgs) {
cur = 0
}
time.Sleep(time.Second / 10)
}
}
}