Merge pull request #1 from betrok/master
Move from "bash -c" to direct execute, little refatoring
This commit is contained in:
Alexey Derlaft
commit
e86ab7dd40
159
main.go
159
main.go
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@ -5,6 +5,7 @@ import (
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"github.com/derlaft/xmpp"
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"io/ioutil"
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"log"
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"os"
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"os/exec"
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"regexp"
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"runtime"
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@ -25,9 +26,9 @@ const (
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)
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var (
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ping time.Time
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admin []string
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cs = make(chan xmpp.Stanza)
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stop chan struct{}
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next xmpp.Stanza
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)
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@ -40,9 +41,12 @@ func main() {
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START:
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for {
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if Conn != nil {
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time.Sleep(5 * time.Second)
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log.Println("Conn check:", Conn.Close())
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stop = make(chan struct{})
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if(err != nil) {
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admin = admin[:0]
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if Conn != nil {
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log.Println("Conn check:", Conn.Close())
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}
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time.Sleep(5 * time.Second)
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}
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@ -55,46 +59,68 @@ START:
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log.Println("Signal", err)
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continue
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}
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if err := Conn.SendPresence(room+"/"+name, ""); err != nil {
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if err := Conn.SendPresence(room + "/" + name, ""); err != nil {
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log.Println("Presence", err)
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continue
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}
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go func(Conn *xmpp.Conn) {
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go func(Conn *xmpp.Conn, stop chan struct{}) {
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for {
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select {
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case <-time.After(60 * time.Second):
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Conn.SendIQ(server, "set", "<keepalive xmlns='urn:xmpp:keepalive:0'> <interval>60</interval> </keepalive>")
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if _, _, err = Conn.SendIQ(server, "get", "<ping xmlns='urn:xmpp:ping'/>"); err != nil {
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log.Println("KeepAlive err:", err)
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select {
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case <-stop:
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default:
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log.Println("KeepAlive err:", err)
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close(stop)
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}
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return
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}
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ping = time.Now()
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case <-stop:
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return
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}
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}
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}(Conn)
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}(Conn, stop)
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go func(Conn *xmpp.Conn) {
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go func(Conn *xmpp.Conn, stop chan struct{}) {
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for {
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next, err := Conn.Next()
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if err != nil {
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log.Println("Next err:", err)
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select {
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case <-stop:
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default:
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log.Println("KeepAlive err:", err)
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close(stop)
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}
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return
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}
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cs <- next
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}
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}(Conn)
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}(Conn, stop)
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for {
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select {
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case next = <-cs:
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case <-stop:
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Conn.Close()
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Conn = nil
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continue START
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case <-time.After(65 * time.Second):
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log.Println(Conn.Close(), "\n\t", "closed after 65 seconds of inactivity")
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close(stop)
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Conn = nil
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continue START
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}
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switch t := next.Value.(type) {
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case *xmpp.ClientPresence:
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PresenceHandler(Conn, t)
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case *xmpp.ClientMessage:
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if len(t.Delay.Stamp) == 0 && len(t.Subject) == 0 {
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log.Println(t)
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@ -114,67 +140,86 @@ START:
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func SelfHandler(Conn *xmpp.Conn, Msg *xmpp.ClientMessage) {
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Msg.Body = strings.TrimSpace(Msg.Body)
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Conn.Send(room, "groupchat", Msg.Body)
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if Msg.From == me+"/gsend" {
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if(!strings.HasPrefix(Msg.Body, "!")) {
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Conn.Send(room, "groupchat", Msg.Body)
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return
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}
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Strip(&Msg.Body, &Msg.From)
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if err := exec.Command("bash", "-c", GetCommand("!"+Msg.Body, Msg.From, "./func/")).Run(); err != nil {
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command, err := GetCommand(Msg.Body, Msg.From, "./plugins/")
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if(err != nil) {
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Conn.Send(Msg.From, "chat", err.Error())
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return
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}
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out, err := command.CombinedOutput()
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if err != nil {
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log.Println(err)
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Conn.Send(Msg.From, "chat", err.Error())
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return
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}
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Conn.Send(Msg.From, "chat", string(out))
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}
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var call = regexp.MustCompile("^" + name + "[:,]")
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func MessageHandler(Conn *xmpp.Conn, Msg *xmpp.ClientMessage) {
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Msg.Body = strings.TrimSpace(Msg.Body)
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f := func(s string, s2 *string) bool {
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ok, _ := regexp.MatchString(s, *s2)
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return ok
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}
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switch {
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case f("^\\!megakick ", &Msg.Body):
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Strip(&Msg.Body, &Msg.From)
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s := (strings.Split(Msg.Body, "!megakick "))
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case strings.HasPrefix(Msg.Body, "!megakick "):
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s := strings.Split(Msg.Body, "!megakick ")
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if in(admin, Msg.From) {
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Conn.ModUse(room, s[1], "none", "")
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} else {
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Conn.Send(room, "groupchat", fmt.Sprintf("%s: GTFO", GetNick(Msg.From)))
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}
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case f("^\\!", &Msg.Body): //any external command
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Strip(&Msg.Body, &Msg.From)
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cmd := exec.Command("bash", "-c", GetCommand(Msg.Body, Msg.From, "./plugins/"))
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case strings.HasPrefix(Msg.Body, "!"): //any external command
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cmd, err := GetCommand(Msg.Body, Msg.From, "./plugins/")
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if(err != nil) {
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Conn.Send(room, "groupchat", fmt.Sprintf("%s: WAT", GetNick(Msg.From)))
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if(in(admin, Msg.From)) {
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Conn.Send(Msg.From, "chat", err.Error())
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}
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return
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}
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stdout, _ := cmd.StdoutPipe()
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stderr, _ := cmd.StderrPipe()
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if err := cmd.Start(); err != nil {
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log.Println(err)
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Conn.Send(room, "groupchat", fmt.Sprintf("%s: WAT", GetNick(Msg.From)))
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if(in(admin, Msg.From)) {
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Conn.Send(Msg.From, "chat", err.Error())
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}
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return
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}
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out, _ := ioutil.ReadAll(stdout)
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outerr, _ := ioutil.ReadAll(stderr)
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if err := cmd.Wait(); err != nil {
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if err.Error() == "exit status 127" {
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Conn.Send(room, "groupchat", fmt.Sprintf("%s: WAT", GetNick(Msg.From)))
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return
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}
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}
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cmd.Wait()
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if len(outerr) != 0 && in(admin, Msg.From) {
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Conn.Send(Msg.From, "chat", string(outerr))
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}
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Conn.Send(room, "groupchat", strings.TrimRight(string(out), " \n"))
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case f("^"+name, &Msg.Body): //chat
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Strip(&Msg.Body, &Msg.From)
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r, _ := regexp.Compile("^\\./chat/" + name + "[:,]")
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command := r.ReplaceAllString(GetCommand("!"+Msg.Body, Msg.From, "./chat/"), "./chat/answer")
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out, err := exec.Command("bash", "-c", command).CombinedOutput()
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Conn.Send(room, "groupchat", string(out))
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case call.MatchString(Msg.Body): //chat
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command, err := GetCommand(call.ReplaceAllString(Msg.Body, "!answer"), Msg.From, "./chat/")
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if err != nil {
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log.Println(err)
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return
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}
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Conn.Send(room, "groupchat", strings.TrimRight(string(out), " \n"))
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out, err := command.CombinedOutput()
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if err != nil {
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log.Println(err)
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if(in(admin, Msg.From)) {
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Conn.Send(Msg.From, "chat", err.Error())
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}
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return
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}
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Conn.Send(room, "groupchat", string(out))
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}
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}
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func PresenceHandler(Conn *xmpp.Conn, Prs *xmpp.ClientPresence) {
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if(Prs.From == room + "/" + name && Prs.Item.Role == "none") {
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log.Println("was kicked")
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close(stop)
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return
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}
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switch Prs.Item.Affiliation {
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case "owner":
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fallthrough
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@ -191,21 +236,31 @@ func PresenceHandler(Conn *xmpp.Conn, Prs *xmpp.ClientPresence) {
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}
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}
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func GetCommand(body, from, dir string) string {
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//letter(ASCII or cyrillic), number, underscore only
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var cmd_validator = regexp.MustCompile("^!(\\w|\\p{Cyrillic})*$")
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func GetCommand(body, from, dir string) (*exec.Cmd, error) {
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split := strings.SplitAfterN(body, " ", 2)
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r, _ := regexp.Compile("^\\!")
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command := r.ReplaceAllString(split[0], dir) + " '" + GetNick(from) + "' '" + strconv.FormatBool(in(admin, from)) + "'"
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if len(split) == 2 {
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command += " '" + split[1] + "'"
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}
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return command
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cmd := strings.TrimSpace(split[0])
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if(!cmd_validator.MatchString(cmd)) { return nil, fmt.Errorf("Bad command \"%s\"", cmd) }
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var (
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info os.FileInfo
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err error
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)
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path := dir + Strip(cmd[1:])
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if info, err = os.Stat(path); err != nil { return nil, err }
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if info.IsDir() || info.Mode() & 0111 == 0 { return nil, fmt.Errorf("\"%s\" isn't executable", path) }
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args := []string{ Strip(GetNick(from)), strconv.FormatBool(in(admin, from)) }
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if(len(split) > 1) { args = append(args, Strip(split[1])) }
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return exec.Command(path, args...), nil
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}
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func Strip(s, s2 *string) {
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strip, _ := regexp.Compile("(`|\\$|\\.\\.)")
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q, _ := regexp.Compile("(\"|')")
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*s = q.ReplaceAllString(strip.ReplaceAllString(*s, ""), "“")
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*s2 = q.ReplaceAllString(strip.ReplaceAllString(*s2, ""), "“")
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var strip_regexp = regexp.MustCompile("(`|\\$|\\.\\.)")
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var quote_regexp = regexp.MustCompile("(\"|')")
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func Strip(s string) string {
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return quote_regexp.ReplaceAllString(strip_regexp.ReplaceAllString(s, ""), "“")
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}
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func GetNick(s string) string {
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