mod_pubsub_serverinfo: Detect existence of pub/sub node Instead of blindly trying to create the pub/sub node to publish items to, a service discovery query is performed to check if node creation is required. Added various bits of warn and debug logging, to give a user better feedback if and why something is failing.

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