[Feat]

support trojan xtls
change geodataloader mode as memconservative

.github/workflows/dev.yml

@@ -1,44 +0,0 @@
-name: Dev
-on: [push]
-jobs:
-  dev-build:
-    if: ${{ !contains(github.event.head_commit.message, '[Skip CI]') }}
-    runs-on: ubuntu-latest
-    steps:
-      - name: Get latest go version
-        id: version
-        run: |
-          echo ::set-output name=go_version::$(curl -s https://raw.githubusercontent.com/actions/go-versions/main/versions-manifest.json | grep -oE '"version": "[0-9]{1}.[0-9]{1,}(.[0-9]{1,})?"' | head -1 | cut -d':' -f2 | sed 's/ //g; s/"//g')
-      - name: Setup Go
-        uses: actions/setup-go@v2
-        with:
-          go-version: ${{ steps.version.outputs.go_version }}
-
-      - name: Check out code into the Go module directory
-        uses: actions/checkout@v2
-
-      - name: Cache go module
-        uses: actions/cache@v2
-        with:
-          path: ~/go/pkg/mod
-          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-go-
-#      - name: Get dependencies, run test
-#        run: |
-#          go test ./...
-      - name: Build
-        if: success()
-        env:
-          NAME: Clash.Meta
-          BINDIR: bin
-        run: make -j releases
-
-      - name: Upload Dev
-        uses: softprops/action-gh-release@v1
-        if: ${{ env.GIT_BRANCH != 'Meta' && success() }}
-        with:
-          tag_name: develop
-          files: bin/*
-          prerelease: true
-

adapter/outbound/trojan.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"crypto/tls"
 	"fmt"
+	xtls "github.com/xtls/go"
 	"net"
 	"net/http"
 	"strconv"
@@ -33,6 +34,7 @@ type TrojanOption struct {
 	Server         string      `proxy:"server"`
 	Port           int         `proxy:"port"`
 	Password       string      `proxy:"password"`
+	Flow           string      `proxy:"flow,omitempty"`
 	ALPN           []string    `proxy:"alpn,omitempty"`
 	SNI            string      `proxy:"sni,omitempty"`
 	SkipCertVerify bool        `proxy:"skip-cert-verify,omitempty"`
@@ -81,8 +83,19 @@ func (t *Trojan) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
 	}
-
+	var tc trojan.Command
-	err = t.instance.WriteHeader(c, trojan.CommandTCP, serializesSocksAddr(metadata))
+	if xtlsConn, ok := c.(*xtls.Conn); ok {
+		xtlsConn.RPRX = true
+		if t.instance.GetFlow() == trojan.XRD {
+			xtlsConn.DirectMode = true
+			tc = trojan.CommandXRD
+		} else {
+			tc = trojan.CommandXRO
+		}
+	} else {
+		tc = trojan.CommandTCP
+	}
+	err = t.instance.WriteHeader(c, tc, serializesSocksAddr(metadata))
 	return c, err
 }
 
@@ -157,9 +170,12 @@ func NewTrojan(option TrojanOption) (*Trojan, error) {
 
 	tOption := &trojan.Option{
 		Password:            option.Password,
+		Flow:                option.Flow,
 		ALPN:                option.ALPN,
 		ServerName:          option.Server,
 		SkipCertVerify:      option.SkipCertVerify,
+		ClientSessionCache:  getClientSessionCache(),
+		ClientXSessionCache: getClientXSessionCache(),
 	}
 
 	if option.SNI != "" {

adapter/outbound/util.go

@@ -2,8 +2,11 @@ package outbound
 
 import (
 	"bytes"
+	"crypto/tls"
+	xtls "github.com/xtls/go"
 	"net"
 	"strconv"
+	"sync"
 	"time"
 
 	"github.com/Dreamacro/clash/component/resolver"
@@ -11,6 +14,12 @@ import (
 	"github.com/Dreamacro/clash/transport/socks5"
 )
 
+var (
+	globalClientSessionCache  tls.ClientSessionCache
+	globalClientXSessionCache xtls.ClientSessionCache
+	once                      sync.Once
+)
+
 func tcpKeepAlive(c net.Conn) {
 	if tcp, ok := c.(*net.TCPConn); ok {
 		tcp.SetKeepAlive(true)
@@ -18,6 +27,20 @@ func tcpKeepAlive(c net.Conn) {
 	}
 }
 
+func getClientSessionCache() tls.ClientSessionCache {
+	once.Do(func() {
+		globalClientSessionCache = tls.NewLRUClientSessionCache(128)
+	})
+	return globalClientSessionCache
+}
+
+func getClientXSessionCache() xtls.ClientSessionCache {
+	once.Do(func() {
+		globalClientXSessionCache = xtls.NewLRUClientSessionCache(128)
+	})
+	return globalClientXSessionCache
+}
+
 func serializesSocksAddr(metadata *C.Metadata) []byte {
 	var buf [][]byte
 	aType := uint8(metadata.AddrType)

component/geodata/utils.go

@@ -2,10 +2,11 @@ package geodata
 
 import (
 	"github.com/Dreamacro/clash/component/geodata/router"
+	"strings"
 )
 
 func LoadGeoSiteMatcher(countryCode string) (*router.DomainMatcher, int, error) {
-	geoLoaderName := "standard"
+	geoLoaderName := "memconservative"
 	geoLoader, err := GetGeoDataLoader(geoLoaderName)
 	if err != nil {
 		return nil, 0, err
@@ -28,3 +29,29 @@ func LoadGeoSiteMatcher(countryCode string) (*router.DomainMatcher, int, error)
 
 	return matcher, len(domains), nil
 }
+
+func LoadGeoIPMatcher(country string) (*router.GeoIPMatcher, int, error) {
+	geoLoaderName := "memconservative"
+	geoLoader, err := GetGeoDataLoader(geoLoaderName)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	records, err := geoLoader.LoadGeoIP(strings.ReplaceAll(country, "!", ""))
+	if err != nil {
+		return nil, 0, err
+	}
+
+	geoIP := &router.GeoIP{
+		CountryCode:  country,
+		Cidr:         records,
+		ReverseMatch: strings.Contains(country, "!"),
+	}
+
+	matcher, err := router.NewGeoIPMatcher(geoIP)
+	if err != nil {
+		return nil, 0, err
+	}
+
+	return matcher, len(records), nil
+}

config/config.go

@@ -40,6 +40,7 @@ type General struct {
 	LogLevel     log.LogLevel `json:"log-level"`
 	IPv6         bool         `json:"ipv6"`
 	Interface    string       `json:"-"`
+	Geodataload  string       `json:"geodataload"`
 }
 
 // Inbound
@@ -169,6 +170,7 @@ type RawConfig struct {
 	ExternalUI         string       `yaml:"external-ui"`
 	Secret             string       `yaml:"secret"`
 	Interface          string       `yaml:"interface-name"`
+	Geodataloader      string       `yaml:"geodata-loader"`
 
 	ProxyProvider map[string]map[string]interface{} `yaml:"proxy-providers"`
 	RuleProvider  map[string]map[string]interface{} `yaml:"rule-providers"`
@@ -199,6 +201,7 @@ func UnmarshalRawConfig(buf []byte) (*RawConfig, error) {
 		AllowLan:       false,
 		BindAddress:    "*",
 		Mode:           T.Rule,
+		Geodataloader:  "standard",
 		UnifiedDelay:   false,
 		Authentication: []string{},
 		LogLevel:       log.INFO,

rule/common/geoip.go

@@ -55,33 +55,18 @@ func (g *GEOIP) GetCountry() string {
 	return g.country
 }
 
+func (g *GEOIP) GetIPMatcher() *router.GeoIPMatcher {
+	return g.geoIPMatcher
+}
+
 func NewGEOIP(country string, adapter string, noResolveIP bool, ruleExtra *C.RuleExtra) (*GEOIP, error) {
-
+	geoIPMatcher, recordsCount, err := geodata.LoadGeoIPMatcher(country)
-	geoLoaderName := "standard"
-	//geoLoaderName := "memconservative"
-	geoLoader, err := geodata.GetGeoDataLoader(geoLoaderName)
 	if err != nil {
 		return nil, fmt.Errorf("[GeoIP] %s", err.Error())
 	}
 
-	records, err := geoLoader.LoadGeoIP(strings.ReplaceAll(country, "!", ""))
+	log.Infoln("Start initial GeoIP rule %s => %s, records: %d", country, adapter, recordsCount)
-	if err != nil {
-		return nil, fmt.Errorf("[GeoIP] %s", err.Error())
-	}
 
-	geoIP := &router.GeoIP{
-		CountryCode:  country,
-		Cidr:         records,
-		ReverseMatch: strings.Contains(country, "!"),
-	}
-
-	geoIPMatcher, err := router.NewGeoIPMatcher(geoIP)
-
-	if err != nil {
-		return nil, fmt.Errorf("[GeoIP] %s", err.Error())
-	}
-
-	log.Infoln("Start initial GeoIP rule %s => %s, records: %d", country, adapter, len(records))
 	geoip := &GEOIP{
 		country:      country,
 		adapter:      adapter,

rule/common/geosite.go

@@ -8,6 +8,7 @@ import (
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/log"
 
+	_ "github.com/Dreamacro/clash/component/geodata/memconservative"
 	_ "github.com/Dreamacro/clash/component/geodata/standard"
 )
 

transport/trojan/trojan.go

@@ -7,6 +7,7 @@ import (
 	"encoding/binary"
 	"encoding/hex"
 	"errors"
+	xtls "github.com/xtls/go"
 	"io"
 	"net"
 	"net/http"
@@ -21,6 +22,9 @@ import (
 const (
 	// max packet length
 	maxLength = 8192
+
+	XRD = "xtls-rprx-direct"
+	XRO = "xtls-rprx-origin"
 )
 
 var (
@@ -35,13 +39,18 @@ type Command = byte
 var (
 	CommandTCP byte = 1
 	CommandUDP byte = 3
+	CommandXRD byte = 0xf0
+	CommandXRO byte = 0xf1
 )
 
 type Option struct {
 	Password            string
+	Flow                string
 	ALPN                []string
 	ServerName          string
 	SkipCertVerify      bool
+	ClientSessionCache  tls.ClientSessionCache
+	ClientXSessionCache xtls.ClientSessionCache
 }
 
 type WebsocketOption struct {
@@ -56,21 +65,46 @@ type Trojan struct {
 	hexPassword []byte
 }
 
+func (t *Trojan) GetFlow() string {
+	return t.option.Flow
+}
+
 func (t *Trojan) StreamConn(conn net.Conn) (net.Conn, error) {
 	alpn := defaultALPN
 	if len(t.option.ALPN) != 0 {
 		alpn = t.option.ALPN
 	}
-
+	switch t.option.Flow {
+	case XRD, XRO:
+		xtlsConfig := &xtls.Config{
+			NextProtos:         alpn,
+			MinVersion:         xtls.VersionTLS12,
+			InsecureSkipVerify: t.option.SkipCertVerify,
+			ServerName:         t.option.ServerName,
+			ClientSessionCache: t.option.ClientXSessionCache,
+		}
+		xtlsConn := xtls.Client(conn, xtlsConfig)
+		if err := xtlsConn.Handshake(); err != nil {
+			return nil, err
+		}
+		ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTLSTimeout)
+		defer cancel()
+		if err := xtlsConn.HandshakeContext(ctx); err != nil {
+			return nil, err
+		}
+		return xtlsConn, nil
+	default:
 		tlsConfig := &tls.Config{
 			NextProtos:         alpn,
 			MinVersion:         tls.VersionTLS12,
 			InsecureSkipVerify: t.option.SkipCertVerify,
 			ServerName:         t.option.ServerName,
+			ClientSessionCache: t.option.ClientSessionCache,
 		}
-
 		tlsConn := tls.Client(conn, tlsConfig)
-
+		if err := tlsConn.Handshake(); err != nil {
+			return nil, err
+		}
 		// fix tls handshake not timeout
 		ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTLSTimeout)
 		defer cancel()
@@ -80,6 +114,7 @@ func (t *Trojan) StreamConn(conn net.Conn) (net.Conn, error) {
 
 		return tlsConn, nil
 	}
+}
 
 func (t *Trojan) StreamWebsocketConn(conn net.Conn, wsOptions *WebsocketOption) (net.Conn, error) {
 	alpn := defaultWebsocketALPN