susmng.py reads secret from file instead from cli

susmng.py

@@ -4,6 +4,8 @@ import sys
 import requests
 import hmac
 import hashlib
+import pathlib
+import os
 
 
 def get_args():
@@ -15,13 +17,21 @@ def get_args():
     parser.add_argument('command')
     parser.add_argument('shortlink')
     parser.add_argument('value')
-    parser.add_argument('--secret', default="secret")
+    parser.add_argument('--secret-file', type=pathlib.Path, default=pathlib.Path(os.path.expanduser('~/.susmng_secret')))
     parser.add_argument('--http', action='store_true')
     return parser.parse_args()
 
 
 def main(args):
     """ Entry point for script """
+
+    if not args.secret_file.exists():
+        print(f"secret file does not exist at: {args.secret_file}")
+        return
+
+    with open(args.secret_file) as fp:
+        secret = fp.read().strip()
+
     r = requests.post(f"{'http' if args.http else 'https'}://{args.susserver}",
             data = {
                 'Command': args.command,
@@ -30,7 +40,7 @@ def main(args):
                 },
             headers = {
                 'Signature': 'SUS-SIGNATURE-' + hmac.new(
-                    args.secret.encode("UTF-8"),
+                    secret.encode("UTF-8"),
                     (args.command+":"+args.shortlink+":"+args.value).encode("UTF-8"),
                     hashlib.sha256
                     ).hexdigest()