Hmac: various fixes

gogsmaker.py

@@ -82,9 +82,9 @@ def update_repo(hook, clone_url):
 
 def check_signature(received_sig, hook, payload):
     ''' Check Gogs signature '''
-    digest = hmac.new(hook.secret,
+    digest = hmac.new(hook['secret'].encode('utf-8'),
                       msg=payload,
-                      digestmod=sha256).digest()
+                      digestmod=sha256).hexdigest()
     return hmac.compare_digest(digest, received_sig)