From 90969aeadb74a39cba74a04a6cb81b62e9db822d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torma=20Krist=C3=B3f?= <tormakristof@tormakristof.eu>
Date: Mon, 26 Apr 2021 21:52:11 +0200
Subject: [PATCH] better append to dict

---
 server/netwrapper.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/server/netwrapper.py b/server/netwrapper.py
index 4146d2c..e33728e 100644
--- a/server/netwrapper.py
+++ b/server/netwrapper.py
@@ -31,7 +31,8 @@ class NetWrapper:
         return encrypted_msg
 
     def signRSAHeader(self, type: str, extradata: dict) -> (bytes, bytes):
-        header = json.dumps({'type': type, 'source': self.network.own_addr}.update(extradata)).encode('UTF-8')
+        mandatory = {'type': type, 'source': self.network.own_addr}
+        header = json.dumps({**mandatory, **extradata}).encode('UTF-8')
         h = SHA512.new(header)
         headersignature = pkcs1_15.new(self.serverPrivateKey).sign(h)
         return header, headersignature