ooni-probe-cli/internal/engine/netx/quicdialer/saver.go
Simone Basso e4f10eeac2
refactor: continue to simplify engine/netx (#769)
The objective of this diff is to simplify the code inside engine/netx
while moving more bits of code inside netxlite.

See https://github.com/ooni/probe/issues/2121
2022-05-31 08:11:07 +02:00

69 lines
2.1 KiB
Go

package quicdialer
import (
"context"
"crypto/tls"
"time"
"github.com/lucas-clemente/quic-go"
"github.com/ooni/probe-cli/v3/internal/engine/netx/trace"
"github.com/ooni/probe-cli/v3/internal/model"
"github.com/ooni/probe-cli/v3/internal/netxlite"
)
// HandshakeSaver saves events occurring during the handshake
type HandshakeSaver struct {
Saver *trace.Saver
model.QUICDialer
}
// DialContext implements ContextDialer.DialContext
func (h HandshakeSaver) DialContext(ctx context.Context, network string,
host string, tlsCfg *tls.Config, cfg *quic.Config) (quic.EarlyConnection, error) {
start := time.Now()
// TODO(bassosimone): in the future we probably want to also save
// information about what versions we're willing to accept.
h.Saver.Write(trace.Event{
Address: host,
Name: "quic_handshake_start",
NoTLSVerify: tlsCfg.InsecureSkipVerify,
Proto: network,
TLSNextProtos: tlsCfg.NextProtos,
TLSServerName: tlsCfg.ServerName,
Time: start,
})
sess, err := h.QUICDialer.DialContext(ctx, network, host, tlsCfg, cfg)
stop := time.Now()
if err != nil {
h.Saver.Write(trace.Event{
Duration: stop.Sub(start),
Err: err,
Name: "quic_handshake_done",
NoTLSVerify: tlsCfg.InsecureSkipVerify,
TLSNextProtos: tlsCfg.NextProtos,
TLSServerName: tlsCfg.ServerName,
Time: stop,
})
return nil, err
}
state := connectionState(sess)
h.Saver.Write(trace.Event{
Duration: stop.Sub(start),
Name: "quic_handshake_done",
NoTLSVerify: tlsCfg.InsecureSkipVerify,
TLSCipherSuite: netxlite.TLSCipherSuiteString(state.CipherSuite),
TLSNegotiatedProto: state.NegotiatedProtocol,
TLSNextProtos: tlsCfg.NextProtos,
TLSPeerCerts: trace.PeerCerts(state, err),
TLSServerName: tlsCfg.ServerName,
TLSVersion: netxlite.TLSVersionString(state.Version),
Time: stop,
})
return sess, nil
}
// connectionState returns the ConnectionState of a QUIC Session.
func connectionState(sess quic.EarlyConnection) tls.ConnectionState {
return sess.ConnectionState().TLS.ConnectionState
}