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hptoad
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Move from "bash -c" to direct execute, little refatoring

This commit is contained in:
betrok 2015-08-18 18:06:25 +03:00
parent 79a839b34a
commit 908a87953d
1 changed files with 107 additions and 52 deletions
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155
main.go
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@ -5,6 +5,7 @@ import (
"github.com/derlaft/xmpp"
"io/ioutil"
"log"
"os"
"os/exec"
"regexp"
"runtime"
@ -25,9 +26,9 @@ const (
)
var (
ping time.Time
admin []string
cs = make(chan xmpp.Stanza)
stop chan struct{}
next xmpp.Stanza
)
@ -40,9 +41,12 @@ func main() {
START:
for {
stop = make(chan struct{})
if(err != nil) {
admin = admin[:0]
if Conn != nil {
time.Sleep(5 * time.Second)
log.Println("Conn check:", Conn.Close())
}
time.Sleep(5 * time.Second)
}
@ -55,46 +59,68 @@ START:
log.Println("Signal", err)
continue
}
if err := Conn.SendPresence(room+"/"+name, ""); err != nil {
if err := Conn.SendPresence(room + "/" + name, ""); err != nil {
log.Println("Presence", err)
continue
}
go func(Conn *xmpp.Conn) {
go func(Conn *xmpp.Conn, stop chan struct{}) {
for {
select {
case <-time.After(60 * time.Second):
Conn.SendIQ(server, "set", "<keepalive xmlns='urn:xmpp:keepalive:0'> <interval>60</interval> </keepalive>")
if _, _, err = Conn.SendIQ(server, "get", "<ping xmlns='urn:xmpp:ping'/>"); err != nil {
select {
case <-stop:
default:
log.Println("KeepAlive err:", err)
close(stop)
}
return
}
ping = time.Now()
}
}
}(Conn)
go func(Conn *xmpp.Conn) {
case <-stop:
return
}
}
}(Conn, stop)
go func(Conn *xmpp.Conn, stop chan struct{}) {
for {
next, err := Conn.Next()
if err != nil {
log.Println("Next err:", err)
select {
case <-stop:
default:
log.Println("KeepAlive err:", err)
close(stop)
}
return
}
cs <- next
}
}(Conn)
}(Conn, stop)
for {
select {
case next = <-cs:
case <-stop:
Conn.Close()
Conn = nil
continue START
case <-time.After(65 * time.Second):
log.Println(Conn.Close(), "\n\t", "closed after 65 seconds of inactivity")
close(stop)
Conn = nil
continue START
}
switch t := next.Value.(type) {
case *xmpp.ClientPresence:
PresenceHandler(Conn, t)
case *xmpp.ClientMessage:
if len(t.Delay.Stamp) == 0 && len(t.Subject) == 0 {
log.Println(t)
@ -114,67 +140,86 @@ START:
func SelfHandler(Conn *xmpp.Conn, Msg *xmpp.ClientMessage) {
Msg.Body = strings.TrimSpace(Msg.Body)
if(!strings.HasPrefix(Msg.Body, "!")) {
Conn.Send(room, "groupchat", Msg.Body)
if Msg.From == me+"/gsend" {
return
}
Strip(&Msg.Body, &Msg.From)
if err := exec.Command("bash", "-c", GetCommand("!"+Msg.Body, Msg.From, "./func/")).Run(); err != nil {
command, err := GetCommand(Msg.Body, Msg.From, "./plugins/")
if(err != nil) {
Conn.Send(Msg.From, "chat", err.Error())
return
}
out, err := command.CombinedOutput()
if err != nil {
log.Println(err)
Conn.Send(Msg.From, "chat", err.Error())
return
}
Conn.Send(Msg.From, "chat", string(out))
}
var call = regexp.MustCompile("^" + name + "[:,]")
func MessageHandler(Conn *xmpp.Conn, Msg *xmpp.ClientMessage) {
Msg.Body = strings.TrimSpace(Msg.Body)
f := func(s string, s2 *string) bool {
ok, _ := regexp.MatchString(s, *s2)
return ok
}
switch {
case f("^\\!megakick ", &Msg.Body):
Strip(&Msg.Body, &Msg.From)
s := (strings.Split(Msg.Body, "!megakick "))
case strings.HasPrefix(Msg.Body, "!megakick "):
s := strings.Split(Msg.Body, "!megakick ")
if in(admin, Msg.From) {
Conn.ModUse(room, s[1], "none", "")
} else {
Conn.Send(room, "groupchat", fmt.Sprintf("%s: GTFO", GetNick(Msg.From)))
}
case f("^\\!", &Msg.Body): //any external command
Strip(&Msg.Body, &Msg.From)
cmd := exec.Command("bash", "-c", GetCommand(Msg.Body, Msg.From, "./plugins/"))
case strings.HasPrefix(Msg.Body, "!"): //any external command
cmd, err := GetCommand(Msg.Body, Msg.From, "./plugins/")
if(err != nil) {
Conn.Send(room, "groupchat", fmt.Sprintf("%s: WAT", GetNick(Msg.From)))
if(in(admin, Msg.From)) {
Conn.Send(Msg.From, "chat", err.Error())
}
return
}
stdout, _ := cmd.StdoutPipe()
stderr, _ := cmd.StderrPipe()
if err := cmd.Start(); err != nil {
log.Println(err)
Conn.Send(room, "groupchat", fmt.Sprintf("%s: WAT", GetNick(Msg.From)))
if(in(admin, Msg.From)) {
Conn.Send(Msg.From, "chat", err.Error())
}
return
}
out, _ := ioutil.ReadAll(stdout)
outerr, _ := ioutil.ReadAll(stderr)
if err := cmd.Wait(); err != nil {
if err.Error() == "exit status 127" {
Conn.Send(room, "groupchat", fmt.Sprintf("%s: WAT", GetNick(Msg.From)))
return
}
}
cmd.Wait()
if len(outerr) != 0 && in(admin, Msg.From) {
Conn.Send(Msg.From, "chat", string(outerr))
}
Conn.Send(room, "groupchat", strings.TrimRight(string(out), " \n"))
case f("^"+name, &Msg.Body): //chat
Strip(&Msg.Body, &Msg.From)
r, _ := regexp.Compile("^\\./chat/" + name + "[:,]")
command := r.ReplaceAllString(GetCommand("!"+Msg.Body, Msg.From, "./chat/"), "./chat/answer")
out, err := exec.Command("bash", "-c", command).CombinedOutput()
Conn.Send(room, "groupchat", string(out))
case call.MatchString(Msg.Body): //chat
command, err := GetCommand(call.ReplaceAllString(Msg.Body, "!answer"), Msg.From, "./chat/")
if err != nil {
log.Println(err)
return
}
Conn.Send(room, "groupchat", strings.TrimRight(string(out), " \n"))
out, err := command.CombinedOutput()
if err != nil {
log.Println(err)
if(in(admin, Msg.From)) {
Conn.Send(Msg.From, "chat", err.Error())
}
return
}
Conn.Send(room, "groupchat", string(out))
}
}
func PresenceHandler(Conn *xmpp.Conn, Prs *xmpp.ClientPresence) {
if(Prs.From == room + "/" + name && Prs.Item.Role == "none") {
log.Println("was kicked")
close(stop)
return
}
switch Prs.Item.Affiliation {
case "owner":
fallthrough
@ -191,21 +236,31 @@ func PresenceHandler(Conn *xmpp.Conn, Prs *xmpp.ClientPresence) {
}
}
func GetCommand(body, from, dir string) string {
//letter(ASCII or cyrillic), number, underscore only
var cmd_validator = regexp.MustCompile("^!(\\w|\\p{Cyrillic})*$")
func GetCommand(body, from, dir string) (*exec.Cmd, error) {
split := strings.SplitAfterN(body, " ", 2)
r, _ := regexp.Compile("^\\!")
command := r.ReplaceAllString(split[0], dir) + " '" + GetNick(from) + "' '" + strconv.FormatBool(in(admin, from)) + "'"
if len(split) == 2 {
command += " '" + split[1] + "'"
}
return command
cmd := strings.TrimSpace(split[0])
if(!cmd_validator.MatchString(cmd)) { return nil, fmt.Errorf("Bad command \"%s\"", cmd) }
var (
info os.FileInfo
err error
)
path := dir + Strip(cmd[1:])
if info, err = os.Stat(path); err != nil { return nil, err }
if info.IsDir() || info.Mode() & 0111 == 0 { return nil, fmt.Errorf("\"%s\" isn't executable", path) }
args := []string{ Strip(GetNick(from)), strconv.FormatBool(in(admin, from)) }
if(len(split) > 1) { args = append(args, Strip(split[1])) }
return exec.Command(path, args...), nil
}
func Strip(s, s2 *string) {
strip, _ := regexp.Compile("(`|\\$|\\.\\.)")
q, _ := regexp.Compile("(\"|')")
*s = q.ReplaceAllString(strip.ReplaceAllString(*s, ""), "“")
*s2 = q.ReplaceAllString(strip.ReplaceAllString(*s2, ""), "“")
var strip_regexp = regexp.MustCompile("(`|\\$|\\.\\.)")
var quote_regexp = regexp.MustCompile("(\"|')")
func Strip(s string) string {
return quote_regexp.ReplaceAllString(strip_regexp.ReplaceAllString(s, ""), "“")
}
func GetNick(s string) string {