These properties are not something that I recognize as standard options. I can try to deduce their meaning though, but you should really ask the author of the code that you’re trying to use.
openfire-host-server-IP is the hostname or IP address of the server that is running Openfire.
openfire-host-server-key probably is the username of the account (as that’s what’s missing in this list).
openfire-host-server-RESOURCE likely is any text that uniquely identifies the device/client/session that you’re establishing. You can probably just use some text like
openfire-host-server-PORT is the TCP port to which the client should connect on your server, likely
openfire-host-server-SERVICE probably is the XMPP domain name that you’ve configured when setting up Openfire.