# DNSZi update script v1.1

# http://www.mizniz.net/44

:local userId "myUserId";

:local authCode "myAuthCode";

:local hosts "mydomain1.com,mydomain2.com";

:local gatewayInterface "ether1-gateway";

:local secureUpdate no;

:local saveResult yes;

:global previousIpAddress;

:if ([/interface find where name=$gatewayInterface running=yes] != "") do={

# Get the current IP on the interface

    :local currentIpAddress [/ip address get [find interface="$gatewayInterface" disabled=no] address];

# Strip the net mask off the IP address

    :for i from=( [:len $currentIpAddress] - 1) to=0 do={

        :if ( [:pick $currentIpAddress $i] = "/") do={ 

            :set currentIpAddress [:pick $currentIpAddress 0 $i];

        } 

    }

    :if ($currentIpAddress != $previousIpAddress) do={

        :log info "ddns: Current ip address ($currentIpAddress) is not equal to previous ip address, update needed";

        :set previousIpAddress $currentIpAddress;

        :local urlScheme "http";

        :if ($secureUpdate) do={

            :set urlScheme "https";

        }

        

        :foreach host in=[:toarray $hosts] do={

# The update URL. Note the "\3F" is hex for question mark (?). Required since ? is a special character in commands.

            /tool fetch url="$urlScheme://ddns.dnszi.com/set.html\3Fuser=$userId&auth=$authCode&domain=$host&record=" keep-result=$saveResult;

        }

        :log info "ddns: Hosts updated on DNSZi with ip address ($currentIpAddress).";

    }

} else={

    :log error "ddns: Interface ($gatewayInterface) is invalid or not currently running.";

}