fix: xray v25.8.3+ compatibility

marznode/backends/xray/_utils.py

@@ -21,17 +21,27 @@ def get_version(xray_path: str) -> str | None:
 
 def get_x25519(xray_path: str, private_key: str = None) -> Dict[str, str] | None:
     """
-    get x25519 public key using the private key
-    :param xray_path:
-    :param private_key:
-    :return: x25519 publickey
+    Calculates the public key from the provided private key.
+
+    - Old output format ("Public key:")
+    - New output format ("Password:")
     """
+
     cmd = [xray_path, "x25519"]
     if private_key:
         cmd.extend(["-i", private_key])
     output = subprocess.check_output(cmd, stderr=subprocess.STDOUT).decode("utf-8")
-    match = re.match(r"Private key: (.+)\nPublic key: (.+)", output)
-    if match:
-        private, public = match.groups()
+
+    # Try New Format (v25.8.3+): Looks for "Password:" instead of Public Key
+    match_new = re.match(r"PrivateKey:\s*(.+)\nPassword:\s*(.+)", output)
+    if match_new:
+        private, public = match_new.groups()
         return {"private_key": private, "public_key": public}
+
+    # Try Old Format (< v25.8.3): Looks for standard "Public key:"
+    match_old = re.match(r"Private key:\s*(.+)\nPublic key:\s*(.+)", output)
+    if match_old:
+        private, public = match_old.groups()
+        return {"private_key": private, "public_key": public}
+
     return None