/
utils.go
62 lines (53 loc) · 1.59 KB
/
utils.go
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package privval
import (
"fmt"
"net"
"github.com/pkg/errors"
"github.com/tendermint/tendermint/crypto/ed25519"
"github.com/tendermint/tendermint/libs/log"
tmnet "github.com/tendermint/tendermint/libs/net"
)
// IsConnTimeout returns a boolean indicating whether the error is known to
// report that a connection timeout occurred. This detects both fundamental
// network timeouts, as well as ErrConnTimeout errors.
func IsConnTimeout(err error) bool {
switch errors.Cause(err).(type) {
case EndpointTimeoutError:
return true
case timeoutError:
return true
default:
return false
}
}
// NewSignerListener creates a new SignerListenerEndpoint using the corresponding listen address
func NewSignerListener(listenAddr string, logger log.Logger) (*SignerListenerEndpoint, error) {
var listener net.Listener
protocol, address := tmnet.ProtocolAndAddress(listenAddr)
ln, err := net.Listen(protocol, address)
if err != nil {
return nil, err
}
switch protocol {
case "unix":
listener = NewUnixListener(ln)
case "tcp":
// TODO: persist this key so external signer can actually authenticate us
listener = NewTCPListener(ln, ed25519.GenPrivKey())
default:
return nil, fmt.Errorf(
"wrong listen address: expected either 'tcp' or 'unix' protocols, got %s",
protocol,
)
}
pve := NewSignerListenerEndpoint(logger.With("module", "privval"), listener)
return pve, nil
}
// GetFreeLocalhostAddrPort returns a free localhost:port address
func GetFreeLocalhostAddrPort() string {
port, err := tmnet.GetFreePort()
if err != nil {
panic(err)
}
return fmt.Sprintf("127.0.0.1:%d", port)
}