HTTP Audio Stream redistribution

I am interested in re-distribution of HTTP stream to LAN HTTP clients which will be downloaded from a WAN based streaming source. I don't want all the LAN client to make a WAN call and consume the bandwidth for the same stream. An alternative would be to write a stream client and act as a server as manage the subscription of all the client requests coming from local clients and distribute the incoming chunks downloaded to all the subscribers. But wondering if there is some existing util/lib which could help me with this.