boddle/bot.go
Eva Dengler f6cf8b46ec kill bot after 10 minutes idling
should prevent 'ping loss' due to weird network setup
2022-03-05 21:39:54 +01:00

127 lines
2.7 KiB
Go

package main
import (
"os"
"log"
"fmt"
"net"
"time"
"bufio"
"bytes"
"strings"
"database/sql"
configo "github.com/distributedio/configo"
_ "github.com/mattn/go-sqlite3"
)
func sendmsg (conn net.Conn, channel string, msg string) {
mesg := fmt.Sprintf("PRIVMSG %s :%s\r\n", channel, msg)
fmt.Printf(mesg)
conn.Write([]byte(mesg))
}
func scanline_privmsg (msg string) irc_msg {
var irc irc_msg
msg = msg[1:]
t := strings.Split(msg, "!")
irc.author, irc.channel = t[0], t[1]
t = strings.Split(irc.channel, "PRIVMSG ")
irc.channel = t[1]
t = strings.Split(irc.channel, " :")
irc.channel, irc.msg = t[0], t[1]
t = strings.Split(irc.msg, "\r\n")
irc.msg = strings.TrimSpace(t[0])
if ! strings.HasPrefix(irc.channel, "#") {
irc.channel = irc.author
}
irc.retmsg = ""
return irc
}
func listenToIRC (foo bot) <-chan []byte {
c := make(chan []byte)
reader := bufio.NewReader(foo.conn)
db, err = sql.Open("sqlite3", foo.Conf.Database)
if err != nil {
LOG_ERR.Printf("opening database failed")
return nil
}
go func() {
for {
line, err := reader.ReadString('\n')
if err != nil {
LOG_ERR.Printf("Error while reading bytes from connection.\n")
close(c)
return
}
c <- []byte(line)
if bytes.Contains([]byte(line), []byte("PING :")) {
v := []byte(bytes.Replace([]byte(line), []byte("PING"), []byte("PONG"), 1))
fmt.Printf(string(v[:]))
foo.conn.Write(v)
} else if bytes.Contains([]byte(line), []byte("PRIVMSG")) {
msg := scanline_privmsg(string(line))
parsemsg(&msg, foo)
if msg.retmsg != "" {
sendmsg(foo.conn, msg.channel, msg.retmsg)
}
}
}
} ()
return c
}
func connect(boddle *bot) <-chan []byte {
conn, err := net.Dial("tcp", (*boddle).Conf.Server)
if err != nil {
fmt.Fprintf(os.Stderr, "Error while dialing server.")
LOG_ERR.Printf("Error while connecting to server.")
return nil
}
(*boddle).conn = conn
/* connect to irc */
fmt.Fprintf((*boddle).conn, "NICK %s\r\n", (*boddle).Conf.Name)
fmt.Fprintf((*boddle).conn, "USER %s 1 1 1:%s\r\n", (*boddle).Conf.Name, (*boddle).Conf.Name)
for _, channel := range((*boddle).Conf.Channels) {
fmt.Fprintf((*boddle).conn, "JOIN %s\r\n", channel)
}
return listenToIRC((*boddle))
}
func main() {
LOG_init()
var boddle bot
if err := configo.Load("./boddle.toml", &boddle.Conf); err != nil {
log.Fatal(err)
}
LOG_INFO.Println("bot started!")
var botchan <-chan []byte
for {
botchan = connect(&boddle)
for {
select {
case res := <-botchan:
fmt.Println(string(res))
case <-time.After(10 * time.Minute):
fmt.Println("timeout - 10 Minutes no ping received.")
// close channel, close connection
boddle.conn.Close()
goto Reconnect
}
}
Reconnect:
fmt.Println("trying to reconnect...")
}
}