Replace sendkeys with keylogger

Client.md

@@ -16,7 +16,7 @@ When the GoSmartKeyboard client is started, it does the following:
 if len(os.Args) > 1 {
     @{get client fifo input file from environment} 
     @{setup client}
-    if clientFifoInputFileExists {
+    if clientFifoInputFileEnvExists {
         @{start client with fifo}
         os.Exit(0)
     }
@@ -97,6 +97,8 @@ if !strings.HasPrefix(connectionURL, "ws://") && !strings.HasPrefix(connectionUR
 
 var inputString string
 
+syscall.Mkfifo(clientFifoInputFile, syscall.S_IFIFO|0666)
+
 for {
     input, err := ioutil.ReadFile(clientFifoInputFile)
     if err != nil {
@@ -118,7 +120,6 @@ for {
 ```
 
 
-
 ## Sending keys from stdin
 
 
@@ -187,6 +188,7 @@ package main
 import (
     "strings"
     "io/ioutil"
+    "syscall"
     "io"
     "bufio"
     "log"

Dependencies.md

@@ -24,14 +24,13 @@ We use sha3 to hash authentication tokens. It is not in the crypto standard libr
 
 ---
 
-# sendkeys
+# keylogger
 
+We use keylogger to get keyboard input on the client and simulate keystrokes on the server.
 
-In order to avoid coding key press simulation for every major platform, we use [sendkeys](https://github.com/yunginnanet/sendkeys). This is a cross-platform library that uses the OS's native key press simulation using [keybd_event](https://github.com/micmonay/keybd_event)
+--- keylogger import string
 
---- sendkeys import string
+    "github.com/MarinX/keylogger"
-
-    "github.com/EgosOwn/sendkeys"
 
 ---
 

EnvironmentVariables.md

@@ -7,7 +7,7 @@ Some users may always want xdotool, see the [Streaming.md](Streaming.md) file fo
 
 ``` go
 --- always use xdotool environment variable
-var alwaysUseXdotool := false
+var alwaysUseXdotool = false
 alwaysUseXdotoolEnv, alwaysUseXdotoolExists := os.LookupEnv("KEYBOARD_ALWAYS_USE_XDOTOOL")
 if alwaysUseXdotoolExists {
     if alwaysUseXdotoolEnv == "true" || alwaysUseXdotoolEnv == "1" {
@@ -46,7 +46,7 @@ authTokenInput, authTokenInputExists := os.LookupEnv("KEYBOARD_AUTH")
 
 --- get client fifo input file from environment
 
-clientFifoInputFile, clientFifoInputFileExists := os.LookupEnv("KEYBOARD_FIFO")
+clientFifoInputFile, clientFifoInputFileEnvExists := os.LookupEnv("KEYBOARD_FIFO")
 
 ---
 

server/Sendkeys.md

@@ -1,39 +1,25 @@
-# Send keys streaming approach
+# uinput streaming approach
 
-When applicable to use send keys, we need to detect Enter, Tab, and BackSpace and use the applicatble functions.
 
-We test if it meets the characterRegex, and if so we iterate for each character and send the corresponding key.
-Otherwise we send the entire string at once.
 
 ``` go
---- do streaming sendkeys approach
+--- do streaming keylogger approach
-if characterRegex.MatchString(message_string) {
+
-	for _, character := range message_string {
+key := ""
-		charString := string(character)
+if strings.HasPrefix(message_string, "{KEYDWN}") {
-		if charString == "\n" {
+	key = strings.TrimPrefix(string(message_string), "{KEYDWN}")
-			keyboard.Enter()
+	k.Write(1, key)
-			continue
+} else if strings.HasPrefix(message_string, "{KEYUP}") {
+	key = strings.TrimPrefix(string(message_string), "{KEYUP}")
+	k.Write(0, key)
+} else{
+	for _, key := range message_string {
+		// write once will simulate keyboard press/release, for long press or release, lookup at Write
+		k.WriteOnce(string(key))
 	}
-		if charString == "\t" {
-			keyboard.Tab()
-			continue
-		}
-		if charString == "\b" {
-			keyboard.BackSpace()
-			continue
-		}
-		err = keyboard.Type(charString)
-		if err != nil {
-			log.Println("type:", err)
-		}
-		continue
-	}
-	continue
-}
-err = keyboard.Type(message_string)
-if err != nil {
-	log.Println("type:", err)
 }
+
+
 ---
 
 ```

server/Server.md

@@ -68,7 +68,7 @@ import(
     "log"
 	"keyboard.voidnet.tech/auth"
     @{gorilla/websocket import string}
-    @{sendkeys import string}
+    @{keylogger import string}
 )
 
 var listener net.Listener

server/Streaming.md

@@ -2,9 +2,9 @@
 
 We use the Gorilla websocket library to handle the websocket connection.
 
-Most of the time, we can use sendkeys (which uses libinput) to effeciently press keys. However, if we need to send a character that sendkeys doesn't know about, we can use the xdotool command. xdotool is also useful if one does not want to use root.
+Most of the time, we can use the keylogger library (which uses uinput) to effeciently press keys. However, if we need to send a character that keylogger doesn't know about, we can use the xdotool command. xdotool is also useful if one does not want to use root.
 
-xdotool spawns a new process for each keypress, so it's not as effecient as sendkeys.
+xdotool spawns a new process for each keypress, so it's not as effecient as keylogger.
 
 To specify xdotool usage, the client should send a message with the format `{kb_cmd:xdotool}:message` where message is a utf-8 string.
 
@@ -14,7 +14,20 @@ To specify xdotool usage, the client should send a message with the format `{kb_
 func clientConnected(w http.ResponseWriter, r *http.Request) {
 	// regex if string has characters we need to convert to key presses
 	characterRegex, _ := regexp.Compile(`[^\x08]\x08|\t|\n`)
-	keyboard, err := sendkeys.NewKBWrapWithOptions(sendkeys.Noisy)
+
+	// find keyboard device, does not require a root permission
+	keyboard := keylogger.FindKeyboardDevice()
+
+	// check if we found a path to keyboard
+	if len(keyboard) <= 0 {
+		return
+	}
+
+	k, err := keylogger.New(keyboard)
+	if err != nil {
+		return
+	}
+	defer k.Close()
 
 	@{always use xdotool environment variable}
 
@@ -84,7 +97,7 @@ doXDoTool := func(command string, keys string)(err error) {
 
 @{handle xdotoool commands}
 
-@{do streaming sendkeys approach}
+@{do streaming keylogger approach}
 
 ---
 ```

tools/Input.md

@@ -19,7 +19,7 @@ import (
 
 func main(){
     var input string
-    @{get client fifo input file from environment}
+    @{get client  input file from environment}
     if ! clientFifoInputFileExists {
         os.Exit(1)
     }