Add time delay for key strokes in type command

MANUAL.rst

@@ -21,8 +21,8 @@ COMMANDS
 show [-h] [--field FIELD] [--totp] PATH
     Show the contents of an entry, where *PATH* is the full path to the entry.  The password field is spoilered and must be highlighted to reveal the plaintext password.  Use --field *FIELD* to print only the specified field, where *FIELD* is one of  'title', 'username', 'password', 'url', or a custom field.  The --totp option will parse any OTP URIs and print the code.
 
-type [-h] [--prog PROG] [--tabbed] [--totp] [--xdotool] [--username] [name]
-    Automatically type out the password as if the user had typed it on the keyboard, where *PROG* is a dmenu-like program for selecting an entry.  *PROG* defaults to 'dmenu'.  This is useful when you want to automatically fill a selected password field in any application.  *name* is the name of the database to type from.  If not given, type from all databases.  Use the --tabbed option to type out the username then password, separated by a tab. Use the --totp option to generate and type otp using 'otp' attribute. Use the --username option to show entry username in parenthesis during selection.  Use the --xdotool option to use xdotool instead of the Python keyboard library.  Useful for handling unicode input.  Note that this command is intended to be invoked via keyboard shortcut.
+type [-h] [--prog PROG] [--tabbed] [--totp] [--xdotool] [--username] [--duration TIME] [--delay TIME] [name]
+    Automatically type out the password as if the user had typed it on the keyboard, where *PROG* is a dmenu-like program for selecting an entry.  *PROG* defaults to 'dmenu'.  This is useful when you want to automatically fill a selected password field in any application.  *name* is the name of the database to type from.  If not given, type from all databases.  Use the --tabbed option to type out the username then password, separated by a tab. Use the --totp option to generate and type otp using 'otp' attribute. Use the --username option to show entry username in parenthesis during selection.  Use the --xdotool option to use xdotool instead of the Python keyboard library.  Useful for handling unicode input. Use --duration to specify the time in seconds for which a key should be pressed when typing (defaults to 0.012) and --delay to set the time between to separate key strokes.  Note that this command is intended to be invoked via keyboard shortcut.
 
 add [-h] [-w [LENGTH] | -a [LENGTH] | -s [LENGTH]] [--append STR] [--fields FIELD1,...] PATH
     Add a new entry/group to the database, where *PATH* is the full path to the entry or group.  Use -w, -a, or -s to generate a `correct horse battery staple`_, alphanumeric, or alphanumeric + symbolic password, respectively.  *LENGTH* defaults to 5 words for -w and 32 characters for -a and -s unless otherwise specified.  Use --append to append *STR* to the end of the generated password to meet specific password requirements.  Use --fields to specify a comma separated list of custom fields to prompt for during entry creation.

passhole/passhole.py

@@ -570,6 +570,35 @@ def prompt_open(
             c[default_section].get('cache-timeout', cache_timeout)
         )
 
+def type_string(k, s, stroke_duration=0.012, stroke_delay=0.0):
+    """Type out a string using pynput
+
+    Prints the given string using the keyboard with specific delays
+    between actions.
+
+    Parameters
+    ----------
+    k : Controller
+        Keyboard controller object
+    s : string
+        String to send to keyboard
+    stroke_duration : float , optional
+        Duration of a key press, defaults to 12 ms (like xdotool)
+    stroke_delay : float, optional
+        Delay between two separate key strokes, defaults to 0 ms
+    """
+    from time import sleep
+    for i, character in enumerate(s):
+        try:
+            k.press(character)
+            if stroke_duration > 0.0:
+                sleep(stroke_duration)
+            k.release(character)
+            if stroke_delay > 0.0:
+                sleep(stroke_delay)
+
+        except (ValueError, k.InvalidKeyException):
+            raise k.InvalidCharacterException(i, character)
 
 def type_entries(args):
     """Type out password using keyboard
@@ -675,7 +704,9 @@ def call_xdotool(args):
                     call_xdotool(['type', selected_entry.username])
                     call_xdotool(['key', 'Tab'])
                 else:
-                    k.type(selected_entry.username)
+                    # FIXME - replace with `k.type` when pynput PR is merged https://github.com/moses-palmer/pynput/pull/579
+                    type_string(k, selected_entry.username, args.duration, args.delay)
+
                     k.press(Key.tab)
                     k.release(Key.tab)
             else:
@@ -685,7 +716,7 @@ def call_xdotool(args):
             if args.xdotool:
                 call_xdotool(['type', selected_entry.password])
             else:
-                k.type(selected_entry.password)
+                type_string(k, selected_entry.password, args.duration, args.delay)
         else:
             log.warning("Selected entry does not have a password")
 
@@ -1197,6 +1228,8 @@ def create_parser():
     type_parser.add_argument('--totp', action='store_true', default=False, help="type entry TOTP")
     type_parser.add_argument('--xdotool', action='store_true', default=False, help="use xdotool for typing passwords")
     type_parser.add_argument('--username', action='store_true', default=False, help="show username in parenthesis during selection")
+    type_parser.add_argument('--duration', type=float, default=0.012, help="how long a typed key will be pressed in seconds")
+    type_parser.add_argument('--delay', type=float, default=0.0, help="the delay between two key presses in seconds")
     type_parser.set_defaults(func=type_entries)
 
     # process args for `init` command