ooni-probe-cli/internal/engine/netx/tlsdialer/tls.go

50 lines
1.4 KiB
Go

// Package tlsdialer contains code to establish TLS connections.
package tlsdialer
import (
"context"
"crypto/tls"
"net"
"time"
"github.com/ooni/probe-cli/v3/internal/engine/legacy/netx/modelx"
)
// UnderlyingDialer is the underlying dialer type.
type UnderlyingDialer interface {
DialContext(ctx context.Context, network, address string) (net.Conn, error)
}
// TLSHandshaker is the generic TLS handshaker
type TLSHandshaker interface {
Handshake(ctx context.Context, conn net.Conn, config *tls.Config) (
net.Conn, tls.ConnectionState, error)
}
// EmitterTLSHandshaker emits events using the MeasurementRoot
type EmitterTLSHandshaker struct {
TLSHandshaker
}
// Handshake implements Handshaker.Handshake
func (h EmitterTLSHandshaker) Handshake(
ctx context.Context, conn net.Conn, config *tls.Config,
) (net.Conn, tls.ConnectionState, error) {
root := modelx.ContextMeasurementRootOrDefault(ctx)
root.Handler.OnMeasurement(modelx.Measurement{
TLSHandshakeStart: &modelx.TLSHandshakeStartEvent{
DurationSinceBeginning: time.Since(root.Beginning),
SNI: config.ServerName,
},
})
tlsconn, state, err := h.TLSHandshaker.Handshake(ctx, conn, config)
root.Handler.OnMeasurement(modelx.Measurement{
TLSHandshakeDone: &modelx.TLSHandshakeDoneEvent{
ConnectionState: modelx.NewTLSConnectionState(state),
Error: err,
DurationSinceBeginning: time.Since(root.Beginning),
},
})
return tlsconn, state, err
}