ffwizard: change hasRootPass() to use rpc-call "ffwizard-berlin.has_r…

…oot-pass"

This is still not fully functional yet, but shows if the principle will work. 
It's still missing the code to parse the result  into isPasswordSet.

utils/luci-app-ffwizard-berlin/luasrc/tools/freifunk/assistent/tools.lua

@@ -69,12 +69,13 @@ function hasRootPass()
 	logger ("checking for root-password ...")
 
 	local isPasswordSet = true
-	local f = io.popen("wget http://localhost/cgi-bin/has_root-pass -q -O -")
+	local f = io.popen("wget http://localhost/ubus -q -O - --post-data '{ \"jsonrpc\": \"2.0\", \"method\": \" call\", \"params\": [ \"00000000000000000000000000000000\", \"ffwizard-berlin\", \"has_root-pass\", {} ] }'")
 	local ret = f:read("*a")
+	f:close()
+	logger(ret)
 	if ret == "password_is_set:no" then
 		isPasswordSet = false
 	end
-	f:close()
 	return isPasswordSet
 end