ooni-probe-cli/internal/engine/experiment/tlstool/internal/internal.go
Simone Basso 566c6b246a
cleanup: remove unnecessary legacy interfaces (#656)
This diff addresses another point of https://github.com/ooni/probe/issues/1956:

> - [ ] observe that we're still using a bunch of private interfaces for common interfaces such as the `Dialer`, so we can get rid of these private interfaces and always use the ones in `model`, which allows us to remove a bunch of legacy wrappers

Additional cleanups may still be possible. The more I cleanup, the more I see
there's extra legacy code we can dispose of (which seems good?).
2022-01-07 18:33:37 +01:00

58 lines
1.6 KiB
Go

// Package internal contains the implementation of tlstool.
package internal
import (
"time"
"github.com/ooni/probe-cli/v3/internal/model"
)
// DialerConfig contains the config for creating a dialer
type DialerConfig struct {
Dialer model.Dialer
Delay time.Duration
SNI string
}
// NewSNISplitterDialer creates a new dialer that splits
// outgoing messages such that the SNI should end up being
// splitted into different TCP segments.
func NewSNISplitterDialer(config DialerConfig) Dialer {
return Dialer{
Dialer: config.Dialer,
Delay: config.Delay,
Splitter: func(b []byte) [][]byte {
return SNISplitter(b, []byte(config.SNI))
},
}
}
// NewThriceSplitterDialer creates a new dialer that splits
// outgoing messages in three parts according to the circumvention
// technique described by Kevin Boch in the Internet Measurement
// Village 2020 <https://youtu.be/ksojSRFLbBM?t=1140>.
func NewThriceSplitterDialer(config DialerConfig) Dialer {
return Dialer{
Dialer: config.Dialer,
Delay: config.Delay,
Splitter: Splitter84rest,
}
}
// NewRandomSplitterDialer creates a new dialer that splits
// the SNI like the fixed splitting schema used by outline. See
// github.com/Jigsaw-Code/outline-go-tun2socks.
func NewRandomSplitterDialer(config DialerConfig) Dialer {
return Dialer{
Dialer: config.Dialer,
Delay: config.Delay,
Splitter: Splitter3264rand,
}
}
// NewVanillaDialer creates a new vanilla dialer that does
// nothing and is used to establish a baseline.
func NewVanillaDialer(config DialerConfig) Dialer {
return Dialer{Dialer: config.Dialer}
}