diff --git a/skelly.go b/skelly.go
@@ -0,0 +1,176 @@
+package main
+
+import (
+ "bufio"
+ "crypto/tls"
+ "flag"
+ "fmt"
+ "log"
+ "net"
+ "strconv"
+ "strings"
+ "time"
+)
+
+var (
+ server string
+ port string
+ useSSL bool
+ channel string
+ key string
+)
+
+func init() {
+ flag.StringVar(&server, "server", "", "The IRC server address (e.g., 1.2.3.4)")
+ flag.StringVar(&port, "port", "6667", "The port of the IRC server (e.g., 6667)")
+ flag.BoolVar(&useSSL, "ssl", false, "Whether to use SSL or not")
+ flag.StringVar(&channel, "channel", "", "The IRC channel to join (e.g., #channelName)")
+ flag.StringVar(&key, "key", "", "The IRC channel key")
+ flag.Parse()
+}
+
+const (
+ nickname = "[dev]skelly"
+ username = "golang"
+ realname = "IRC Bot Skeleton in Golang"
+)
+
+func checkArgs() {
+ if server == "" || channel == "" {
+ log.Fatal("Both server and channel arguments are required.")
+ } else if channel[0] != '#' {
+ channel = "#" + channel // Using # on the commandline requires escaping, lets just make it optional
+ }
+ num, err := strconv.Atoi(port)
+ if err != nil {
+ log.Fatal("Invalid port number.")
+ } else if num < 1 || num > 65535 {
+ log.Fatal("Port number must be between 1 and 65535.")
+ }
+}
+
+func main() {
+ checkArgs()
+
+ fullServer := fmt.Sprintf("%s:%s", server, port)
+
+ var conn net.Conn
+ var err error
+
+ if useSSL {
+ conn, err = tls.Dial("tcp", fullServer, &tls.Config{InsecureSkipVerify: true})
+ } else {
+ conn, err = net.Dial("tcp", fullServer)
+ }
+ if err != nil {
+ log.Printf("Failed to connect: %v", err)
+ time.Sleep(15 * time.Second)
+ }
+
+ messageChannel := make(chan string, 100) // for received IRC messages
+ sendChannel := make(chan string, 100) // for messages to send to the IRC server
+ quit := make(chan struct{})
+
+ timeoutDuration := 300 * time.Second
+ timeoutTimer := time.NewTimer(timeoutDuration)
+
+ go func() {
+ reader := bufio.NewReader(conn)
+ for {
+ line, err := reader.ReadString('\n')
+ if err != nil {
+ log.Println("Error reading from server:", err)
+ conn.Close()
+ close(quit)
+ return
+ }
+ select {
+ case messageChannel <- line:
+ timeoutTimer.Reset(timeoutDuration)
+ case <-quit:
+ return
+ case <-timeoutTimer.C:
+ log.Println("No data received for 300 seconds. Reconnecting...")
+ conn.Close()
+ close(quit)
+ return
+ }
+ }
+ }()
+
+ go func() {
+ for {
+ select {
+ case message := <-sendChannel:
+ data := []byte(message)
+ if len(data) > 510 {
+ data = data[:510]
+ }
+ _, err := conn.Write(append(data, '\r', '\n'))
+ if err != nil {
+ log.Println("Error writing to server:", err)
+ conn.Close()
+ close(quit)
+ return
+ }
+ case <-quit:
+ return
+ }
+ }
+ }()
+
+ // Initial handshake
+ sendChannel <- fmt.Sprintf("NICK %s", nickname)
+ sendChannel <- fmt.Sprintf("USER %s 0 * :%s", username, realname)
+
+ for {
+ dataHandler(<-messageChannel, sendChannel)
+ }
+}
+
+func eventPrivate(nick, ident, msg string) {
+ fmt.Println("Private message from", nick, ":", msg)
+}
+
+func eventMessage(nick, ident, channel, msg string) {
+ fmt.Println("Channel message from", nick, ":", msg)
+ if ident == "acidvegas!~stillfree@most.dangerous.motherfuck" {
+ args := strings.Split(msg, " ")
+ switch args[0] {
+ case "!masscan":
+ fmt.Println("The value is a")
+ case "!nmap":
+ fmt.Println("The value is b")
+ case "!httpx":
+ fmt.Println("The value is c")
+ case "!nuclei":
+ fmt.Println("The value is c")
+ default:
+ fmt.Println("Unknown value")
+ }
+ }
+}
+
+func dataHandler(data string, sendChannel chan<- string) {
+ fmt.Println(data)
+ parts := strings.Split(data, " ")
+
+ if parts[0] == "PING" {
+ sendChannel <- fmt.Sprintf("PONG %s", parts[1])
+ } else if parts[1] == "001" { // RPL_WELCOME
+ time.Sleep(5 * time.Second) // JOIN channel delay after connection, required for many networks with flood protection / mitigation
+ sendChannel <- fmt.Sprintf("JOIN %s %s", channel, key)
+ } else if parts[1] == "KICK" {
+ return
+ } else if len(parts) > 3 && parts[1] == "PRIVMSG" {
+ nick := strings.Split(parts[0], "!")[0][1:]
+ ident := strings.Split(parts[0], ":")[1]
+ target := parts[2]
+ msg := strings.Join(parts[3:], " ")[1:]
+ if target == nickname { // Private Messages
+ eventPrivate(nick, ident, msg)
+ } else if target == channel { // Channel Messages
+ eventMessage(nick, ident, channel, msg)
+ }
+ }
+}
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