package utils import ( "errors" "golang.org/x/net/proxy" "net" "strings" ) // NetworkResolver allows a client to resolve various hostnames to connections // The supported types are onions address are: // * ricochet:jlq67qzo6s4yp3sp // * jlq67qzo6s4yp3sp // * 127.0.0.1:55555|jlq67qzo6s4yp3sp - Localhost Connection type NetworkResolver struct { } // Resolve takes a hostname and returns a net.Conn to the derived endpoint func (nr *NetworkResolver) Resolve(hostname string) (net.Conn, string, error) { if strings.HasPrefix(hostname, "127.0.0.1") { addrParts := strings.Split(hostname, "|") tcpAddr, err := net.ResolveTCPAddr("tcp", addrParts[0]) if err != nil { return nil, "", errors.New("Cannot Resolve Local TCP Address") } conn, err := net.DialTCP("tcp", nil, tcpAddr) if err != nil { return nil, "", errors.New("Cannot Dial Local TCP Address") } // return just the onion address, not the local override for the hostname return conn, addrParts[1], nil } resolvedHostname := hostname if strings.HasPrefix(hostname, "ricochet:") { addrParts := strings.Split(hostname, ":") resolvedHostname = addrParts[1] } torDialer, err := proxy.SOCKS5("tcp", "127.0.0.1:9050", nil, proxy.Direct) if err != nil { return nil,"", err } conn, err := torDialer.Dial("tcp", resolvedHostname+".onion:9878") if err != nil { return nil, "", errors.New("Cannot Dial Remote Ricochet Address") } //conn.SetDeadline(time.Now().Add(5 * time.Second)) return conn, resolvedHostname, nil }