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Add fingerprint xray_random (#1540)

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* Add fingerprint xray_random

xray_random means to pick a random uTLS fingerprint at the core startup
This way, the fingerprint is stable for a user for some days. While there is no identifiable signature for the whole xray community

* Fingerprint "random" refine

Exclude old fingerprint from RNG
pull/1553/head
yuhan6665 2 years ago committed by GitHub
parent 77d2f9edd7
commit 3fb67f065a
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 56 additions and 18 deletions
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2
transport/internet/grpc/dial.go
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@ -122,7 +122,7 @@ func getGrpcClient(ctx context.Context, dest net.Destination, streamSettings *in
if tlsConfig != nil {
var transportCredential credentials.TransportCredentials
if fingerprint, exists := tls.Fingerprints[tlsConfig.Fingerprint]; exists {
if fingerprint, exists := tls.GetFingerprint(ctx, tlsConfig.Fingerprint); exists {
transportCredential = tls.NewGrpcUtls(tlsConfig.GetTLSConfig(), fingerprint)
} else { // Fallback to normal gRPC TLS
transportCredential = credentials.NewTLS(tlsConfig.GetTLSConfig())

2
transport/internet/http/dialer.go
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@ -75,7 +75,7 @@ func getHTTPClient(ctx context.Context, dest net.Destination, streamSettings *in
}
var cn tls.Interface
if fingerprint, ok := tls.Fingerprints[tlsConfigs.Fingerprint]; ok {
if fingerprint, ok := tls.GetFingerprint(ctx, tlsConfigs.Fingerprint); ok {
cn = tls.UClient(pconn, tlsConfig, fingerprint).(*tls.UConn)
} else {
cn = tls.Client(pconn, tlsConfig).(*tls.Conn)

2
transport/internet/tcp/dialer.go
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@ -22,7 +22,7 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
if config := tls.ConfigFromStreamSettings(streamSettings); config != nil {
tlsConfig := config.GetTLSConfig(tls.WithDestination(dest))
if fingerprint, ok := tls.Fingerprints[config.Fingerprint]; ok {
if fingerprint, ok := tls.GetFingerprint(ctx, config.Fingerprint); ok {
conn = tls.UClient(conn, tlsConfig, fingerprint)
if err := conn.(*tls.UConn).Handshake(); err != nil {
return nil, err

66
transport/internet/tls/tls.go
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@ -1,17 +1,23 @@
package tls
import (
"context"
"crypto/rand"
"crypto/tls"
"math/big"
utls "github.com/refraction-networking/utls"
"github.com/xtls/xray-core/common/buf"
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/session"
)
//go:generate go run github.com/xtls/xray-core/common/errors/errorgen
var _ buf.Writer = (*Conn)(nil)
var XrayRandom *utls.ClientHelloID
type Conn struct {
*tls.Conn
}
@ -111,29 +117,63 @@ func copyConfig(c *tls.Config) *utls.Config {
}
}
func GetFingerprint(ctx context.Context, config string) (*utls.ClientHelloID, bool) {
if XrayRandom == nil {
// lazy init
for k, v := range FingerprintsForRNG {
Fingerprints[k] = v
}
big, err := rand.Int(rand.Reader, big.NewInt(int64(len(FingerprintsForRNG))))
if err != nil {
newError("failed to generate xray random fingerprint").Base(err).WriteToLog(session.ExportIDToError(ctx))
}
var i = int(big.Int64())
count := 0
for k, v := range FingerprintsForRNG {
if count == i {
newError("xray random fingerprint: ", k).WriteToLog(session.ExportIDToError(ctx))
XrayRandom = v
break
}
count++
}
}
if config == "random" {
return XrayRandom, true
}
fingerprint, ok := Fingerprints[config]
return fingerprint, ok
}
var Fingerprints = map[string]*utls.ClientHelloID{
"chrome": &utls.HelloChrome_Auto,
"firefox": &utls.HelloFirefox_Auto,
"safari": &utls.HelloSafari_Auto,
"randomized": &utls.HelloRandomized,
// This is a bit lame, but it seems there is no good way to reflect variables from Golang package
"hellogolang": &utls.HelloGolang,
"hellorandomized": &utls.HelloRandomized,
"hellorandomizedalpn": &utls.HelloRandomizedALPN,
"hellorandomizednoalpn": &utls.HelloRandomizedNoALPN,
// We don't RNG for go, randomized, or fingerprints that is more than 4 years old
"hellogolang": &utls.HelloGolang,
"hellorandomized": &utls.HelloRandomized,
"hellorandomizedalpn": &utls.HelloRandomizedALPN,
"hellorandomizednoalpn": &utls.HelloRandomizedNoALPN,
"hellofirefox_55": &utls.HelloFirefox_55,
"hellofirefox_56": &utls.HelloFirefox_56,
"hellofirefox_63": &utls.HelloFirefox_63,
"hellofirefox_65": &utls.HelloFirefox_65,
"hellochrome_58": &utls.HelloChrome_58,
"hellochrome_62": &utls.HelloChrome_62,
"hellochrome_70": &utls.HelloChrome_70,
"hellochrome_72": &utls.HelloChrome_72,
"helloios_11_1": &utls.HelloIOS_11_1,
"hello360_7_5": &utls.Hello360_7_5,
}
var FingerprintsForRNG = map[string]*utls.ClientHelloID{
"hellofirefox_auto": &utls.HelloFirefox_Auto,
"hellofirefox_55": &utls.HelloFirefox_55,
"hellofirefox_56": &utls.HelloFirefox_56,
"hellofirefox_63": &utls.HelloFirefox_63,
"hellofirefox_65": &utls.HelloFirefox_65,
"hellofirefox_99": &utls.HelloFirefox_99,
"hellofirefox_102": &utls.HelloFirefox_102,
"hellofirefox_105": &utls.HelloFirefox_105,
"hellochrome_auto": &utls.HelloChrome_Auto,
"hellochrome_58": &utls.HelloChrome_58,
"hellochrome_62": &utls.HelloChrome_62,
"hellochrome_70": &utls.HelloChrome_70,
"hellochrome_72": &utls.HelloChrome_72,
"hellochrome_83": &utls.HelloChrome_83,
"hellochrome_87": &utls.HelloChrome_87,
"hellochrome_96": &utls.HelloChrome_96,
@ -141,7 +181,6 @@ var Fingerprints = map[string]*utls.ClientHelloID{
"hellochrome_102": &utls.HelloChrome_102,
"hellochrome_106_shuffle": &utls.HelloChrome_106_Shuffle,
"helloios_auto": &utls.HelloIOS_Auto,
"helloios_11_1": &utls.HelloIOS_11_1,
"helloios_12_1": &utls.HelloIOS_12_1,
"helloios_13": &utls.HelloIOS_13,
"helloios_14": &utls.HelloIOS_14,
@ -152,7 +191,6 @@ var Fingerprints = map[string]*utls.ClientHelloID{
"hellosafari_auto": &utls.HelloSafari_Auto,
"hellosafari_16_0": &utls.HelloSafari_16_0,
"hello360_auto": &utls.Hello360_Auto,
"hello360_7_5": &utls.Hello360_7_5,
"hello360_11_0": &utls.Hello360_11_0,
"helloqq_auto": &utls.HelloQQ_Auto,
"helloqq_11_1": &utls.HelloQQ_11_1,

2
transport/internet/websocket/dialer.go
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@ -86,7 +86,7 @@ func dialWebSocket(ctx context.Context, dest net.Destination, streamSettings *in
protocol = "wss"
tlsConfig := config.GetTLSConfig(tls.WithDestination(dest), tls.WithNextProto("http/1.1"))
dialer.TLSClientConfig = tlsConfig
if fingerprint, exists := tls.Fingerprints[config.Fingerprint]; exists {
if fingerprint, exists := tls.GetFingerprint(ctx, config.Fingerprint); exists {
dialer.NetDialTLSContext = func(_ context.Context, _, addr string) (gonet.Conn, error) {
// Like the NetDial in the dialer
pconn, err := internet.DialSystem(ctx, dest, streamSettings.SocketSettings)

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