add timestamps to management requests

susmng.py

@@ -8,6 +8,7 @@ import pathlib
 import os
 import json
 import sys
+import time
 
 
 def get_args():
@@ -51,20 +52,34 @@ def main(args):
     if args.command == "delete" and args.value != "confirm":
         print("--value not set to 'confirm'... delete operation may fail")
 
-    r = requests.post(f"{'http' if args.http else 'https'}://{server}",
-            data = {
-                'Command': args.command,
-                'Shortlink': args.shortlink,
-                'Value': args.value,
-                },
-            headers = {
-                'Signature': 'SUS-SIGNATURE-' + hmac.new(
-                    secret.encode("UTF-8"),
-                    (args.command+":"+args.shortlink+":"+args.value).encode("UTF-8"),
-                    hashlib.sha256
-                    ).hexdigest()
-                }
-            )
+    # accoring to python documentation (https://docs.python.org/3/library/time.html#time.time)
+    # this function does not explicitly have to use unix time, and implementation is dependent
+    # platform.
+    # most platforms (windows, unix) will probably give unix time though.
+    #
+    # the server side (main.go file) does explicitly use unix time (time.Now().UnixNano()) to get
+    # this number, but hopefully there should be no issues on most platforms.
+    timestamp = str(time.time_ns())
+
+    data = {
+        'Command': args.command,
+        'Shortlink': args.shortlink,
+        'Value': args.value,
+        'Timestamp': timestamp,
+        }
+
+    headers = {
+        'Signature': 'SUS-SIGNATURE-' + hmac.new(
+            secret.encode("UTF-8"),
+            (timestamp + ":" + args.command + ":" + args.shortlink + ":" + args.value).encode("UTF-8"),
+            hashlib.sha256
+            ).hexdigest()
+        }
+
+    print(f"{data=}")
+    print(f"{headers=}")
+
+    r = requests.post(f"{'http' if args.http else 'https'}://{server}", data=data, headers=headers)
     print(r, file=sys.stderr)
     print(r.content.decode().strip())
     return 0