.gitea/workflows/go-audit.yaml

@@ -0,0 +1,27 @@
+name: Go audit
+run-name: ${{ gitea.actor }} pushed to main! 🚀
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+jobs:
+  audit:
+    runs-on: ubuntu-latest
+    steps:
+
+    - uses: actions/checkout@v2
+
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: '>=1.22.0'
+
+    - name: Verify dependencies
+      run: go mod verify
+
+    - name: Build
+      run: go build -v ./...
+
+    - name: Run go vet
+      run: go vet ./...

.gitignore

@@ -9,8 +9,6 @@
 *.so
 *.dylib
 dist/
-server.crt
-server.key
 
 # Test binary, built with `go test -c`
 *.test

README.md

@@ -1,40 +1,11 @@
 # mini-chat
 
-Tiny IRC-like chat server written in Go
+Tiny IRC-like chat server built for compatibility with netcat and written in Go
 
-<p align="center">
+## Usage
-<img width="90%" height="90%" src="https://git.bulgariu.xyz/raul/mini-chat/raw/branch/main/demo.gif"/>
-</p>
 
-## Commands
+### Starting the server
-### Client
+./mini-chat server --port 1337
-```
-Example:
- ./mini-chat client --ip 192.168.0.100 --port 1337
 
-Usage:
+### Connecting to the server
-  mini-chat client [flags]
+./mini-chat client --ip $SERVER_IP --port $SERVER_PORT
-
-Flags:
-  -a, --ascii         Render UI in pure ASCII, might help with rendering issues
-  -h, --help          help for client
-      --insecure      [UNSAFE] Do not use TLS encryption
-  -i, --ip string     Server IP to connect to
-  -p, --port string   Server port to connect to (default "1302")
-```
-
-### Server
-```
-Example:
- ./mini-chat server --port 1337 --history chat.log --password coolh4x0r1337
-
-Usage:
-  mini-chat server [flags]
-
-Flags:
-  -h, --help              help for server
-  -r, --history string    File to store and recover chat history from
-      --insecure          [UNSAFE] Do not use TLS encryption
-      --password string   Password for accessing the chat server
-  -p, --port string       Port to use for listening (default "1302")
-```

cmd/client.go

@@ -10,6 +10,7 @@ import (
 	"os"
 )
 
+// clientCmd represents the client command
 var clientCmd = &cobra.Command{
 	Use:   "client",
 	Short: "Client interface for mini-chat",
@@ -34,10 +35,18 @@ Example:
 
 func init() {
 	rootCmd.AddCommand(clientCmd)
-	clientCmd.PersistentFlags().StringP("ip", "i", "", "Server IP to connect to")
+
-	clientCmd.PersistentFlags().StringP("port", "p", "1302", "Server port to connect to")
+	// Here you will define your flags and configuration settings.
-	clientCmd.Flags().Bool("insecure", false, "[UNSAFE] Do not use TLS encryption")
+
-	clientCmd.Flags().BoolP("ascii", "a", false, "Render UI in pure ASCII, might help with rendering issues")
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// clientCmd.PersistentFlags().String("foo", "", "A help for foo")
+	clientCmd.PersistentFlags().String("ip", "", "Server IP to connect to")
+	clientCmd.PersistentFlags().String("port", "1302", "Server port to connect to")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// clientCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
 }
 
 func setClientParameters(cmd *cobra.Command) error {
@@ -59,17 +68,5 @@ func setClientParameters(cmd *cobra.Command) error {
 	}
 	serverIP = parameterIP
 
-	insecure, err := cmd.Flags().GetBool("insecure")
-	if insecure == true {
-		clientInsecure = true
-	}
-
-	ascii, err := cmd.Flags().GetBool("ascii")
-	if err != nil {
-		return err
-	}
-	if ascii == true {
-		useASCII = true
-	}
 	return nil
 }

cmd/clientFunc.go

@@ -6,18 +6,14 @@ package cmd
 
 import (
 	"bufio"
-	"crypto/tls"
 	"fmt"
-	"io"
+	"github.com/jroimartin/gocui"
+	"github.com/nsf/termbox-go"
 	"log"
 	"net"
 	"os"
-	"runtime"
 	"strings"
 	"time"
-
-	"github.com/jroimartin/gocui"
-	"github.com/nsf/termbox-go"
 )
 
 type Message struct {
@@ -26,12 +22,6 @@ type Message struct {
 	Server net.Conn
 }
 
-type ProfileData struct {
-	Username string
-}
-
-var Profile ProfileData
-
 func (m Message) toSend() {
 	m.Server.Write([]byte(m.Contents))
 }
@@ -40,66 +30,22 @@ var (
 	serverPort string = "1302"
 	serverIP   string
 	data       Message
-	clientInsecure bool
-	useASCII       bool
 )
 
-func startSecureConnection() (net.Conn, error) {
-	conf := &tls.Config{
-		InsecureSkipVerify: true,
-	}
-	conn, err := tls.Dial("tcp", serverIP+":"+serverPort, conf)
-	return conn, err
-}
-
-func startInsecureConnection() (net.Conn, error) {
-	conn, err := net.Dial("tcp", serverIP+":"+serverPort)
-	return conn, err
-}
-
 func Client() {
-	var conn net.Conn
+	conn, err := net.Dial("tcp", serverIP+":"+serverPort)
-	var err error
-	if clientInsecure == true {
-		fmt.Println("WARNING: Starting unencrypted connection!")
-		conn, err = startInsecureConnection()
-	} else {
-		conn, err = startSecureConnection()
-	}
-
 	if err != nil {
 		log.Fatalf("Error occurred trying to connect to server: %v\n", err)
 	}
 	defer conn.Close()
 	data.Server = conn
 
-	nameRequest, b, err := receiveMessage(conn)
+	nameRequest, err := receiveMessage(conn)
 	if err != nil {
 		log.Fatalf("Error occurred reading from server while requesting name: %v\n", err)
 	}
 	fmt.Print(nameRequest)
-	test := make([]byte, b)
-	copy(test, "Password: ")
-
-	if nameRequest == string(test) {
-		pass, err := scanLine()
-		if err != nil {
-			log.Fatal(err)
-		}
-		conn.Write([]byte(pass))
-
-		nameRequest, _, err := receiveMessage(conn)
-		if err != nil {
-			if err != io.EOF {
-				log.Fatalf("Error occurred reading from server while requesting name: %v\n", err)
-			}
-			os.Exit(1)
-		}
-		fmt.Print(nameRequest)
 	sendName(conn)
-	} else {
-		sendName(conn)
-	}
 	GUI()
 }
 
@@ -108,16 +54,21 @@ func Client() {
 ////////////////////////////////////////////////////
 
 func listenMessages(g *gocui.Gui) {
-	time.Sleep(time.Millisecond * 50)
+	time.Sleep(time.Millisecond * 250)
 	chatbox, err := g.View("chatbox")
 	if err != nil {
 		log.Panicln(err)
 	}
 	for {
-		messageFromServer, _, err := receiveMessage(data.Server)
+		messageFromServer, err := receiveMessage(data.Server)
 		if err != nil {
+			// Avoid triggering an error if client quits the client
+			if err == gocui.ErrQuit {
 				g.Close()
-			os.Exit(0)
+			} else {
+				g.Close()
+				log.Fatalf("Error occurred reading from server: %v\n", err)
+			}
 		}
 
 		formattedMessage := strings.TrimRight(messageFromServer, "\n")
@@ -126,48 +77,23 @@ func listenMessages(g *gocui.Gui) {
 	}
 }
 
-func receiveMessage(conn net.Conn) (s string, b int, err error) {
+func receiveMessage(conn net.Conn) (s string, err error) {
-	serverMessage := make([]byte, 1536)
+	serverMessage := make([]byte, 2048)
-	n, err := conn.Read(serverMessage)
+	if _, err := conn.Read(serverMessage); err != nil {
-	if err != nil {
-		return "", 0, err
-	}
-
-	serverMessageReduced := make([]byte, n)
-	copy(serverMessageReduced, serverMessage)
-
-	finalMessage := string(serverMessageReduced)
-	serverMessage = nil
-
-	return finalMessage, n, nil
-}
-
-func scanLine() (line string, err error) {
-	switch runtime.GOOS {
-	case "linux":
-		message, err := bufio.NewReader(os.Stdin).ReadString('\n')
-		if err != nil {
 		return "", err
 	}
-		line = message
+	finalMessage := string(serverMessage)
-	case "windows":
+	return finalMessage, nil
-		message, err := bufio.NewReader(os.Stdin).ReadString('\r')
-		if err != nil {
-			return "", err
-		}
-		line = message
-	}
-	return line, nil
 }
 
 func sendName(conn net.Conn) {
-	message, err := scanLine()
+	message, err := bufio.NewReader(os.Stdin).ReadString('\n')
+
 	if err != nil {
 		log.Fatalf("Error occurred sending message to server: %v\n", err)
 	}
-	Profile.Username = strings.TrimRight(message, "\n\r")
 
-	if _, err := conn.Write([]byte(Profile.Username + "\n")); err != nil {
+	if _, err := conn.Write([]byte(message)); err != nil {
 		log.Fatalf("Error occurred writing to server: %v\n", err)
 	}
 }
@@ -181,9 +107,6 @@ func GUI() {
 	g.SetManagerFunc(layout)
 	g.Mouse = true
 	g.Cursor = true
-	if useASCII == true {
-		g.ASCII = true
-	}
 	initKeybindings(g)
 
 	go listenMessages(g)
@@ -220,93 +143,50 @@ func sendToServer(g *gocui.Gui, v *gocui.View) error {
 	return nil
 }
 
-func scrollView(v *gocui.View, dy int) error {
-	if v != nil {
-		v.Autoscroll = false
-		ox, oy := v.Origin()
-		if err := v.SetOrigin(ox, oy+dy); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func autoscroll(g *gocui.Gui, v *gocui.View) error {
-	chatbox, err := g.View("chatbox")
-	if err != nil {
-		log.Panicf("Error happened setting autoscroll: %v\n", err)
-	}
-	chatbox.Autoscroll = true
-	return nil
-}
-
 func initKeybindings(g *gocui.Gui) error {
 	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
 		log.Panicln(err)
 	}
 
-	// if err := g.SetKeybinding("button", gocui.MouseLeft, gocui.ModNone, sendToServer); err != nil {
+	if err := g.SetKeybinding("button", gocui.MouseLeft, gocui.ModNone, sendToServer); err != nil {
-	// 	log.Panicln(err)
-	// }
-
-	if err := g.SetKeybinding("textarea", gocui.KeyCtrlA, gocui.ModNone, autoscroll); err != nil {
 		log.Panicln(err)
 	}
 
 	if err := g.SetKeybinding("textarea", gocui.KeyEnter, gocui.ModNone, sendToServer); err != nil {
 		log.Panicln(err)
 	}
-
-	if err := g.SetKeybinding("chatbox", gocui.MouseWheelUp, gocui.ModNone,
-		func(g *gocui.Gui, v *gocui.View) error {
-			scrollView(v, -1)
-			return nil
-		}); err != nil {
-		log.Panicln(err)
-	}
-
-	if err := g.SetKeybinding("chatbox", gocui.MouseWheelDown, gocui.ModNone,
-		func(g *gocui.Gui, v *gocui.View) error {
-			scrollView(v, 1)
-			return nil
-		}); err != nil {
-		log.Panicln(err)
-	}
-
 	return nil
 }
 
 func layout(g *gocui.Gui) error {
 	maxX, maxY := g.Size()
 
-	if chatbox, err := g.SetView("chatbox", 2, 1, maxX-2, maxY-5); err != nil {
+	if chatbox, err := g.SetView("chatbox", 2, 1, maxX/2+40, maxY-5); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		chatbox.Autoscroll = true
+		chatbox.Title = "Chat Box"
+	}
+
+	if button, err := g.SetView("button", maxX/2+32, maxY-4, maxX/2+40, maxY-2); err != nil {
 		if err != gocui.ErrUnknownView {
 			return err
 		}
 
-		chatbox.Autoscroll = true
+		button.Wrap = true
-		chatbox.Title = "Chat Box (Find source at https://git.bulgariu.xyz/raul/mini-chat!)"
+		button.Frame = true
-		chatbox.Wrap = true
+		fmt.Fprintln(button, "Send it")
 	}
 
-	// if button, err := g.SetView("button", maxX/2+32, maxY-4, maxX-28, maxY-2); err != nil {
+	if textarea, err := g.SetView("textarea", 2, maxY-4, maxX/2+28, maxY-2); err != nil {
-	// 	if err != gocui.ErrUnknownView {
-	// 		return err
-	// 	}
-	//
-	// 	button.Wrap = true
-	// 	button.Frame = true
-	// 	fmt.Fprintln(button, "Send it")
-	// }
-
-	if textarea, err := g.SetView("textarea", 2, maxY-4, maxX-2, maxY-2); err != nil {
 		if err != gocui.ErrUnknownView {
 			return err
 		}
 		if _, err := g.SetCurrentView("textarea"); err != nil {
 			log.Panicln(err)
 		}
-		textarea.Title = "(" + Profile.Username + ") " + "Send message" + " (Ctrl+A: Autoscroll)"
+		textarea.Title = "Send message"
 		textarea.Wrap = true
 		textarea.Editable = true
 	}

cmd/gen-cert.sh

@@ -1,10 +0,0 @@
-#!/bin/bash
-SSLCOMMAND=$(which openssl)
-
-echo "[+] Generating server.key..."
-$SSLCOMMAND genrsa -out server.key 2048
-
-echo "[+] Generating server.crt..."
-$SSLCOMMAND req -new -x509 -sha256 -key server.key -out server.crt -days 3650 -subj "/C=ES/ST=Valencia/L=Valencia/O=mini-chat /OU=mini-chat/CN=mini-chat"
-
-echo "[+] Success!"

cmd/root.go

@@ -9,13 +9,19 @@ import (
 	"os"
 )
 
+// rootCmd represents the base command when called without any subcommands
 var rootCmd = &cobra.Command{
 	Use:   "mini-chat",
 	Short: "Application for hosting and joining a simple chat server",
 
 	Long: `Application for hosting and joining a simple chat server`,
+	// Uncomment the following line if your bare application
+	// has an action associated with it:
+	// Run: func(cmd *cobra.Command, args []string) { },
 }
 
+// Execute adds all child commands to the root command and sets flags appropriately.
+// This is called by main.main(). It only needs to happen once to the rootCmd.
 func Execute() {
 	err := rootCmd.Execute()
 	if err != nil {
@@ -24,4 +30,13 @@ func Execute() {
 }
 
 func init() {
+	// Here you will define your flags and configuration settings.
+	// Cobra supports persistent flags, which, if defined here,
+	// will be global for your application.
+
+	// rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.chat-tests.yaml)")
+
+	// Cobra also supports local flags, which will only run
+	// when this action is called directly.
+	rootCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
 }

cmd/server.go

@@ -9,6 +9,7 @@ import (
 	"log"
 )
 
+// serverCmd represents the server command
 var serverCmd = &cobra.Command{
 	Use:   "server",
 	Short: "Tiny chat server",
@@ -16,7 +17,7 @@ var serverCmd = &cobra.Command{
 using a proper interface this time, not using netcat.
 
 Example:
- ./mini-chat server --port 1337 --history chat.log --password coolh4x0r1337`,
+ ./mini-chat server --port 1337`,
 	Run: func(cmd *cobra.Command, args []string) {
 
 		if err := setServerParameters(cmd); err != nil {
@@ -29,10 +30,17 @@ Example:
 
 func init() {
 	rootCmd.AddCommand(serverCmd)
-	serverCmd.PersistentFlags().StringP("port", "p", "1302", "Port to use for listening")
+
-	serverCmd.PersistentFlags().StringP("history", "r", "", "File to store and recover chat history from")
+	// Here you will define your flags and configuration settings.
-	serverCmd.PersistentFlags().String("password", "", "Password for accessing the chat server")
+
-	serverCmd.Flags().Bool("insecure", false, "[UNSAFE] Do not use TLS encryption")
+	// Cobra supports Persistent Flags which will work for this command
+	// and all subcommands, e.g.:
+	// serverCmd.PersistentFlags().String("foo", "", "A help for foo")
+	serverCmd.PersistentFlags().String("port", "1302", "port to use for listening")
+
+	// Cobra supports local flags which will only run when this command
+	// is called directly, e.g.:
+	// serverCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
 }
 
 func setServerParameters(cmd *cobra.Command) error {
@@ -43,27 +51,5 @@ func setServerParameters(cmd *cobra.Command) error {
 	if parameterPort != "" {
 		listenPort = parameterPort
 	}
-
-	parameterHistory, err := cmd.Flags().GetString("history")
-	if err != nil {
-		return err
-	}
-	if parameterHistory != "" {
-		logLocation = parameterHistory
-		isLogging = true
-	}
-
-	parPassword, err := cmd.Flags().GetString("password")
-	if err != nil {
-		return err
-	}
-	if parPassword != "" {
-		password = parPassword
-	}
-
-	insecure, err := cmd.Flags().GetBool("insecure")
-	if insecure == true {
-		servInsecure = true
-	}
 	return nil
 }

cmd/serverFunc.go

@@ -6,28 +6,19 @@ package cmd
 
 import (
 	"bufio"
-	"crypto/tls"
-	_ "embed"
 	"fmt"
 	"log"
 	"net"
-	"os"
-	"os/exec"
 	"strings"
-	"time"
 )
 
 var (
 	listenPort string = "1302"
-	password     string = ""
-	isLogging    bool   = false
-	logLocation  string
-	listenerList []chan string
-	servInsecure bool
 )
 
-//go:embed gen-cert.sh
+type Creator interface {
-var script string
+	CreateUser()
+}
 
 type User struct {
 	Username string
@@ -40,52 +31,8 @@ func (u User) CreateUser(usr string, ip string) User {
 	return u
 }
 
-func createCerts() {
-	fmt.Println("[-] Certificates don't exist! Creating them...")
-	c := exec.Command("bash")
-	c.Stdin = strings.NewReader(script)
-	b, err := c.Output()
-	if err != nil {
-		log.Fatalf("Error occurred creating certificates: %v\n", err)
-	}
-	fmt.Print(string(b))
-}
-
-func startInsecureServer() (net.Listener, error) {
-	ln, err := net.Listen("tcp", ":"+listenPort)
-	return ln, err
-}
-
-func startSecureServer() (net.Listener, error) {
-	cer, err := tls.LoadX509KeyPair("server.crt", "server.key")
-	if os.IsNotExist(err) {
-		createCerts()
-		cer, err = tls.LoadX509KeyPair("server.crt", "server.key")
-	}
-	if err != nil {
-		log.Fatalf("Error happened loading certificates: %v\n", err)
-	}
-	config := &tls.Config{Certificates: []tls.Certificate{cer}}
-	ln, err := tls.Listen("tcp", ":"+listenPort, config)
-	return ln, err
-}
-
-func getTime() string {
-	t := time.Now()
-	currentTime := fmt.Sprintf("%d-%02d-%02d | %02d:%02d:%02d", t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second())
-	return currentTime
-}
-
 func Server() {
-	var ln net.Listener
+	ln, err := net.Listen("tcp", ":"+listenPort)
-	var err error
-	if servInsecure == true {
-		fmt.Println("WARNING: Starting unencrypted server!")
-		ln, err = startInsecureServer()
-	} else {
-		ln, err = startSecureServer()
-	}
-
 	if err != nil {
 		log.Fatalf("Error happened trying to listen on port: %v\n", err)
 	}
@@ -96,12 +43,14 @@ func Server() {
 		if err != nil {
 			log.Fatalf("Error happened trying to accept connection: %v\n", err)
 		}
-		chatChan := make(chan string, 30)
+		chatChan := make(chan string, 10)
 		listenerList = append(listenerList, chatChan)
 		go handleConn(conn, chatChan)
 	}
 }
 
+var listenerList []chan string
+
 func getUsername(conn net.Conn) (s string, err error) {
 	conn.Write([]byte("What's your name?\nChoice: "))
 	name, err := bufio.NewReader(conn).ReadString('\n')
@@ -129,55 +78,9 @@ func removeFromList(chatChan chan string) {
 	}
 }
 
-func populateChat(conn net.Conn) {
-	if isLogging == false {
-		return
-	}
-	file, err := os.Open(logLocation)
-	if err != nil {
-		log.Printf("Error opening file for populating: %v\n", err)
-	}
-	defer file.Close()
-	scanner := bufio.NewScanner(file)
-	// For WHATEVER reason, writing to a TLS-based conn here appends newlines by default,
-	// so we have to split it off here to avoid ending up with chat logs full of
-	// unnecessary newlines
-	if servInsecure == true {
-		for scanner.Scan() {
-			conn.Write([]byte(fmt.Sprintln(scanner.Text())))
-		}
-	} else {
-		for scanner.Scan() {
-			conn.Write([]byte(fmt.Sprint(scanner.Text())))
-		}
-	}
-}
-
-func getPasswd(conn net.Conn) error {
-	conn.Write([]byte("Password: "))
-	userPassNewline, err := bufio.NewReader(conn).ReadString('\n')
-	userPass := strings.TrimRight(userPassNewline, "\n")
-	if err != nil {
-		e := fmt.Errorf("Node %v didn't respond to password prompt!\n", getIP(conn))
-		return e
-	}
-	if userPass != password {
-		e := fmt.Errorf("Node %v attempted connecting with an incorrect password!\n", getIP(conn))
-		return e
-	}
-	return nil
-}
-
 func handleConn(conn net.Conn, chatChan chan string) {
 	defer conn.Close()
 
-	if password != "" {
-		if err := getPasswd(conn); err != nil {
-			log.Print(err)
-			return
-		}
-	}
-
 	go receiveMessageServer(conn, chatChan)
 
 	//////////////////////////////////
@@ -191,13 +94,11 @@ func handleConn(conn net.Conn, chatChan chan string) {
 	}
 	userIP := getIP(conn)
 	//////////////////////////////////
-	populateChat(conn)
 
 	newUserTemplate := new(User)
 	newUser := newUserTemplate.CreateUser(userName, userIP)
-	joinMessage := fmt.Sprintf("[%v] %v has joined the chat!", getTime(), newUser.Username)
+	joinMessage := fmt.Sprintf("%v has joined the chat!", newUser.Username)
-	fmt.Println(joinMessage + " [" + newUser.IP + "]")
+	fmt.Println(joinMessage)
-	addToLog(fmt.Sprintln(joinMessage))
 	//conn.Write([]byte(joinMessage))
 	sendMessage(joinMessage)
 
@@ -205,9 +106,8 @@ func handleConn(conn net.Conn, chatChan chan string) {
 	for {
 		message, err := getUserInput(conn)
 		if err != nil {
-			quitMessage := fmt.Sprintf("[%v] %v has disconnected!", getTime(), newUser.Username)
+			quitMessage := fmt.Sprintf("%v has disconnected!", newUser.Username)
-			fmt.Println(quitMessage + " [" + newUser.IP + "]")
+			fmt.Println(quitMessage)
-			addToLog(fmt.Sprintln(quitMessage))
 			sendMessage(quitMessage)
 			//removeFromList(chatChan)
 			// if _, err := conn.Write([]byte(quitMessage)); err != nil {
@@ -215,10 +115,8 @@ func handleConn(conn net.Conn, chatChan chan string) {
 			// }
 			return
 		}
-		finalMessage := fmt.Sprintf("[%v] %v: %v", getTime(), newUser.Username, strings.TrimRight(message, "\n"))
+		finalMessage := fmt.Sprintf("[%v] %v: %v", newUser.IP, newUser.Username, strings.TrimRight(message, "\n"))
-		fm := fmt.Sprintf("%v\n", finalMessage)
+		fmt.Printf("%v\n", finalMessage)
-		fmt.Print(fm)
-		addToLog(fm)
 		sendMessage(finalMessage)
 
 		//chatChan <- finalMessage
@@ -250,15 +148,3 @@ func getIP(conn net.Conn) (IP string) {
 	}
 	return IP
 }
-
-func addToLog(s string) {
-	if isLogging == false {
-		return
-	}
-	file, err := os.OpenFile(logLocation, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0640)
-	if err != nil {
-		log.Printf("Error occurred: %v\n", err)
-	}
-	defer file.Close()
-	file.WriteString(s)
-}