open-vault/command/server/listener.go
2015-04-04 12:06:41 -07:00

61 lines
1.5 KiB
Go

package server
import (
"crypto/tls"
"fmt"
"net"
)
// ListenerFactory is the factory function to create a listener.
type ListenerFactory func(map[string]string) (net.Listener, map[string]string, error)
// BuiltinListeners is the list of built-in listener types.
var BuiltinListeners = map[string]ListenerFactory{
"tcp": tcpListenerFactory,
}
// NewListener creates a new listener of the given type with the given
// configuration. The type is looked up in the BuiltinListeners map.
func NewListener(t string, config map[string]string) (net.Listener, map[string]string, error) {
f, ok := BuiltinListeners[t]
if !ok {
return nil, nil, fmt.Errorf("unknown listener type: %s", t)
}
return f(config)
}
func listenerWrapTLS(
ln net.Listener,
props map[string]string,
config map[string]string) (net.Listener, map[string]string, error) {
props["tls"] = "disabled"
if v, ok := config["tls_disable"]; ok && v != "" {
return ln, props, nil
}
certFile, ok := config["tls_cert_file"]
if !ok {
return nil, nil, fmt.Errorf("'tls_cert_file' must be set")
}
keyFile, ok := config["tls_key_file"]
if !ok {
return nil, nil, fmt.Errorf("'tls_key_file' must be set")
}
cert, err := tls.LoadX509KeyPair(certFile, keyFile)
if err != nil {
return nil, nil, fmt.Errorf("error loading TLS cert: %s", err)
}
tlsConf := &tls.Config{}
tlsConf.Certificates = []tls.Certificate{cert}
tlsConf.NextProtos = []string{"http/1.1"}
ln = tls.NewListener(ln, tlsConf)
props["tls"] = "enabled"
return ln, props, nil
}