londiste.handler: disable shortcut for specifying handler args together with its name

This will be allowed no more:  --handler="hname(arg1=123, …)"
It was a weak point through which Londiste setup could be broken.

1 files changed, 2 insertions, 0 deletions

diff --git a/python/londiste/handler.py b/python/londiste/handler.py
index d19b517f..51fa603a 100644
--- a/python/londiste/handler.py
+++ b/python/londiste/handler.py
@@ -333,6 +333,8 @@ def _parse_arglist(arglist):
 
 def create_handler_string(name, arglist):
     handler = name
+    if name.find('(') >= 0:
+        raise Exception('invalid handler name: %s' % name)
     if arglist:
         args = _parse_arglist(arglist)
         astr = skytools.db_urlencode(args)