mod_http_admin_api: metrics: Filter out a value that is commonly nan at startup The upload bytes count is typically nan at startup, which cannot legally be encoded in JSON. I haven't assessed whether any other metrics might emit nan under other circumstances, but this fixes the most visible issue right now.

local actions = {};

function actions.auth(data)
	local user, host, pass = data:match("^([^:]+):([^:]+):(.+)$");
	if user == "someone" then
		return "1";
	end
end

for line in io.lines() do
	local action, data = line:match("^([^:]+)(.*)$");
	print(actions[action] and actions[action](data) or "0");
end