ooni-probe-cli/internal/engine/netx/tlsdialer/logging.go
2021-06-08 12:56:39 +02:00

40 lines
1.1 KiB
Go

package tlsdialer
import (
"context"
"crypto/tls"
"net"
"time"
"github.com/ooni/probe-cli/v3/internal/engine/netx/tlsx"
)
// Logger is the logger assumed by this package
type Logger interface {
Debugf(format string, v ...interface{})
Debug(message string)
}
// LoggingTLSHandshaker is a TLSHandshaker with logging
type LoggingTLSHandshaker struct {
TLSHandshaker
Logger Logger
}
// Handshake implements Handshaker.Handshake
func (h LoggingTLSHandshaker) Handshake(
ctx context.Context, conn net.Conn, config *tls.Config,
) (net.Conn, tls.ConnectionState, error) {
h.Logger.Debugf("tls {sni=%s next=%+v}...", config.ServerName, config.NextProtos)
start := time.Now()
tlsconn, state, err := h.TLSHandshaker.Handshake(ctx, conn, config)
stop := time.Now()
h.Logger.Debugf(
"tls {sni=%s next=%+v}... %+v in %s {next=%s cipher=%s v=%s}", config.ServerName,
config.NextProtos, err, stop.Sub(start), state.NegotiatedProtocol,
tlsx.CipherSuiteString(state.CipherSuite), tlsx.VersionString(state.Version))
return tlsconn, state, err
}
var _ TLSHandshaker = LoggingTLSHandshaker{}