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server.go
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server.go
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package adversarylab
import (
"github.com/go-mangos/mangos"
"github.com/go-mangos/mangos/protocol/rep"
"github.com/go-mangos/mangos/transport/tcp"
)
type Responder func([]byte) []byte
type Server struct {
sock mangos.Socket
}
func Listen(url string) Server {
var sock mangos.Socket
var err error
if sock, err = rep.NewSocket(); err != nil {
die("can't get new rep socket: %s", err)
}
sock.AddTransport(tcp.NewTransport())
if err = sock.Listen(url); err != nil {
die("can't listen on rep socket: %s", err.Error())
}
return Server{
sock: sock,
}
}
func (self Server) Accept(responder Responder) []byte {
var err error
var msg []byte
var response []byte
// Could also use sock.RecvMsg to get header
msg, err = self.sock.Recv()
// fmt.Println("server received request:", string(msg))
response = responder(msg)
err = self.sock.Send(response)
if err != nil {
die("can't send reply: %s", err.Error())
}
return msg
}
func Ok(request []byte) []byte {
return []byte("success")
}