common.turbotunnel.clientid.go Maven / Gradle / Ivy
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package turbotunnel
import (
"crypto/rand"
"encoding/hex"
)
// ClientID is an abstract identifier that binds together all the communications
// belonging to a single client session, even though those communications may
// arrive from multiple IP addresses or over multiple lower-level connections.
// It plays the same role that an (IP address, port number) tuple plays in a
// net.UDPConn: it's the return address pertaining to a long-lived abstract
// client session. The client attaches its ClientID to each of its
// communications, enabling the server to disambiguate requests among its many
// clients. ClientID implements the net.Addr interface.
type ClientID [8]byte
func NewClientID() ClientID {
var id ClientID
_, err := rand.Read(id[:])
if err != nil {
panic(err)
}
return id
}
func (id ClientID) Network() string { return "clientid" }
func (id ClientID) String() string { return hex.EncodeToString(id[:]) }