// XServerProxy creates a TCP proxy on port 6000 to a the Unix
// socket that XQuartz is listening on.
//
// NOTE: this function does not start/install the XQuartz service
func XServerProxy(port int) {
if runtime.GOOS != "darwin" {
log.Debug("Not running an OSX environment, skip run X Server Proxy")
return
}
l, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
if err != nil {
log.Fatal(err)
}
defer l.Close()
// Send all traffic back to unix $DISPLAY socket on a running XQuartz server
addr, err := net.ResolveUnixAddr("unix", os.Getenv("DISPLAY"))
if err != nil {
log.Error("Error: ", err.Error())
}
log.Info("X Service Proxy available on all network interfaces on port %d", port)
if host, err := utils.DockerVMHost(); err == nil {
log.Info("Parity has detected your Docker environment and recommends running 'export DISPLAY=%s:0' in your container to forward the X display", host)
}
for {
xServerClient, err := net.DialUnix("unix", nil, addr)
if err != nil {
log.Error("Error: ", err.Error())
}
defer xServerClient.Close()
conn, err := l.Accept()
log.Debug("X Service Proxy connected to client on: %s (remote: %s)", conn.LocalAddr(), conn.RemoteAddr())
if err != nil {
log.Fatal(err)
}
go func(c net.Conn, s *net.UnixConn) {
buf := make([]byte, 8092)
io.CopyBuffer(s, c, buf)
s.CloseWrite()
}(conn, xServerClient)
go func(c net.Conn, s *net.UnixConn) {
buf := make([]byte, 8092)
io.CopyBuffer(c, s, buf)
c.Close()
}(conn, xServerClient)
}
}
func injectDisplayEnvironmentVariables(p *project.Project) {
if host, err := utils.DockerVMHost(); err == nil {
injectEnvironmentVariable([]string{fmt.Sprintf("DISPLAY=%s:0", host)}, p)
}
}