Chore: update dependencies

Co-authored-by: fish <fish@youme.im>

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,30 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ master, dev ]
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'go' ]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1

.github/workflows/go.yml

@@ -26,7 +26,7 @@ jobs:
         run: |
           go test ./...
           go vet ./...
-          go get -u honnef.co/go/tools/cmd/staticcheck
+          go install honnef.co/go/tools/cmd/staticcheck@latest
           staticcheck -- $(go list ./...)
 
       - name: Build
@@ -44,4 +44,3 @@ jobs:
         with:
           files: bin/*
           draft: true
-          prerelease: true

Makefile

@@ -22,7 +22,8 @@ PLATFORM_LIST = \
 	linux-mips64 \
 	linux-mips64le \
 	freebsd-386 \
-	freebsd-amd64
+	freebsd-amd64 \
+	freebsd-arm64
 
 WINDOWS_ARCH_LIST = \
 	windows-386 \
@@ -82,6 +83,9 @@ freebsd-386:
 freebsd-amd64:
 	GOARCH=amd64 GOOS=freebsd $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
 
+freebsd-arm64:
+	GOARCH=arm64 GOOS=freebsd $(GOBUILD) -o $(BINDIR)/$(NAME)-$@
+
 windows-386:
 	GOARCH=386 GOOS=windows $(GOBUILD) -o $(BINDIR)/$(NAME)-$@.exe
 

README.md

@@ -40,6 +40,9 @@ Documentations are now moved to [GitHub Wiki](https://github.com/Dreamacro/clash
 ## Premium Release
 [Release](https://github.com/Dreamacro/clash/releases/tag/premium)
 
+## Development
+If you want to build an application that uses clash as a library, check out the the [GitHub Wiki](https://github.com/Dreamacro/clash/wiki/use-clash-as-a-library)
+
 ## Credits
 
 * [riobard/go-shadowsocks2](https://github.com/riobard/go-shadowsocks2)
@@ -57,4 +60,3 @@ This software is released under the GPL-3.0 license.
 - [x] Redir proxy
 - [x] UDP support
 - [x] Connection manager
-- [ ] ~~Event API~~

adapter/adapter.go

@@ -1,11 +1,12 @@
-package outbound
+package adapter
 
 import (
 	"context"
 	"encoding/json"
-	"errors"
+	"fmt"
 	"net"
 	"net/http"
+	"net/url"
 	"time"
 
 	"github.com/Dreamacro/clash/common/queue"
@@ -14,101 +15,25 @@ import (
 	"go.uber.org/atomic"
 )
 
-type Base struct {
-	name string
-	addr string
-	tp   C.AdapterType
-	udp  bool
-}
-
-func (b *Base) Name() string {
-	return b.name
-}
-
-func (b *Base) Type() C.AdapterType {
-	return b.tp
-}
-
-func (b *Base) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
-	return c, errors.New("no support")
-}
-
-func (b *Base) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
-	return nil, errors.New("no support")
-}
-
-func (b *Base) SupportUDP() bool {
-	return b.udp
-}
-
-func (b *Base) MarshalJSON() ([]byte, error) {
-	return json.Marshal(map[string]string{
-		"type": b.Type().String(),
-	})
-}
-
-func (b *Base) Addr() string {
-	return b.addr
-}
-
-func (b *Base) Unwrap(metadata *C.Metadata) C.Proxy {
-	return nil
-}
-
-func NewBase(name string, addr string, tp C.AdapterType, udp bool) *Base {
-	return &Base{name, addr, tp, udp}
-}
-
-type conn struct {
-	net.Conn
-	chain C.Chain
-}
-
-func (c *conn) Chains() C.Chain {
-	return c.chain
-}
-
-func (c *conn) AppendToChains(a C.ProxyAdapter) {
-	c.chain = append(c.chain, a.Name())
-}
-
-func NewConn(c net.Conn, a C.ProxyAdapter) C.Conn {
-	return &conn{c, []string{a.Name()}}
-}
-
-type packetConn struct {
-	net.PacketConn
-	chain C.Chain
-}
-
-func (c *packetConn) Chains() C.Chain {
-	return c.chain
-}
-
-func (c *packetConn) AppendToChains(a C.ProxyAdapter) {
-	c.chain = append(c.chain, a.Name())
-}
-
-func newPacketConn(pc net.PacketConn, a C.ProxyAdapter) C.PacketConn {
-	return &packetConn{pc, []string{a.Name()}}
-}
-
 type Proxy struct {
 	C.ProxyAdapter
 	history *queue.Queue
 	alive   *atomic.Bool
 }
 
+// Alive implements C.Proxy
 func (p *Proxy) Alive() bool {
 	return p.alive.Load()
 }
 
+// Dial implements C.Proxy
 func (p *Proxy) Dial(metadata *C.Metadata) (C.Conn, error) {
-	ctx, cancel := context.WithTimeout(context.Background(), tcpTimeout)
+	ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTCPTimeout)
 	defer cancel()
 	return p.DialContext(ctx, metadata)
 }
 
+// DialContext implements C.ProxyAdapter
 func (p *Proxy) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
 	conn, err := p.ProxyAdapter.DialContext(ctx, metadata)
 	if err != nil {
@@ -117,6 +42,7 @@ func (p *Proxy) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn,
 	return conn, err
 }
 
+// DelayHistory implements C.Proxy
 func (p *Proxy) DelayHistory() []C.DelayHistory {
 	queue := p.history.Copy()
 	histories := []C.DelayHistory{}
@@ -127,6 +53,7 @@ func (p *Proxy) DelayHistory() []C.DelayHistory {
 }
 
 // LastDelay return last history record. if proxy is not alive, return the max value of uint16.
+// implements C.Proxy
 func (p *Proxy) LastDelay() (delay uint16) {
 	var max uint16 = 0xffff
 	if !p.alive.Load() {
@@ -144,6 +71,7 @@ func (p *Proxy) LastDelay() (delay uint16) {
 	return history.Delay
 }
 
+// MarshalJSON implements C.ProxyAdapter
 func (p *Proxy) MarshalJSON() ([]byte, error) {
 	inner, err := p.ProxyAdapter.MarshalJSON()
 	if err != nil {
@@ -154,10 +82,12 @@ func (p *Proxy) MarshalJSON() ([]byte, error) {
 	json.Unmarshal(inner, &mapping)
 	mapping["history"] = p.DelayHistory()
 	mapping["name"] = p.Name()
+	mapping["udp"] = p.SupportUDP()
 	return json.Marshal(mapping)
 }
 
 // URLTest get the delay for the specified URL
+// implements C.Proxy
 func (p *Proxy) URLTest(ctx context.Context, url string) (t uint16, err error) {
 	defer func() {
 		p.alive.Store(err == nil)
@@ -218,3 +148,31 @@ func (p *Proxy) URLTest(ctx context.Context, url string) (t uint16, err error) {
 func NewProxy(adapter C.ProxyAdapter) *Proxy {
 	return &Proxy{adapter, queue.New(10), atomic.NewBool(true)}
 }
+
+func urlToMetadata(rawURL string) (addr C.Metadata, err error) {
+	u, err := url.Parse(rawURL)
+	if err != nil {
+		return
+	}
+
+	port := u.Port()
+	if port == "" {
+		switch u.Scheme {
+		case "https":
+			port = "443"
+		case "http":
+			port = "80"
+		default:
+			err = fmt.Errorf("%s scheme not Support", rawURL)
+			return
+		}
+	}
+
+	addr = C.Metadata{
+		AddrType: C.AtypDomainName,
+		Host:     u.Hostname(),
+		DstIP:    nil,
+		DstPort:  port,
+	}
+	return
+}

adapter/inbound/http.go

@@ -0,0 +1,21 @@
+package inbound
+
+import (
+	"net"
+
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/context"
+	"github.com/Dreamacro/clash/transport/socks5"
+)
+
+// NewHTTP receive normal http request and return HTTPContext
+func NewHTTP(target string, source net.Addr, conn net.Conn) *context.ConnContext {
+	metadata := parseSocksAddr(socks5.ParseAddr(target))
+	metadata.NetWork = C.TCP
+	metadata.Type = C.HTTP
+	if ip, port, err := parseAddr(source.String()); err == nil {
+		metadata.SrcIP = ip
+		metadata.SrcPort = port
+	}
+	return context.NewConnContext(conn, metadata)
+}

adapter/inbound/https.go

@@ -8,7 +8,7 @@ import (
 	"github.com/Dreamacro/clash/context"
 )
 
-// NewHTTPS recieve CONNECT request and return ConnContext
+// NewHTTPS receive CONNECT request and return ConnContext
 func NewHTTPS(request *http.Request, conn net.Conn) *context.ConnContext {
 	metadata := parseHTTPAddr(request)
 	metadata.Type = C.HTTPCONNECT

adapter/inbound/packet.go

@@ -1,8 +1,8 @@
 package inbound
 
 import (
-	"github.com/Dreamacro/clash/component/socks5"
 	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
 // PacketAdapter is a UDP Packet adapter for socks/redir/tun

adapter/inbound/socket.go

@@ -3,12 +3,12 @@ package inbound
 import (
 	"net"
 
-	"github.com/Dreamacro/clash/component/socks5"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/context"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
-// NewSocket recieve TCP inbound and return ConnContext
+// NewSocket receive TCP inbound and return ConnContext
 func NewSocket(target socks5.Addr, conn net.Conn, source C.Type) *context.ConnContext {
 	metadata := parseSocksAddr(target)
 	metadata.NetWork = C.TCP

adapter/inbound/util.go

@@ -6,8 +6,8 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/Dreamacro/clash/component/socks5"
 	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
 func parseSocksAddr(target socks5.Addr) *C.Metadata {

adapter/outbound/base.go

@@ -0,0 +1,100 @@
+package outbound
+
+import (
+	"encoding/json"
+	"errors"
+	"net"
+
+	C "github.com/Dreamacro/clash/constant"
+)
+
+type Base struct {
+	name string
+	addr string
+	tp   C.AdapterType
+	udp  bool
+}
+
+// Name implements C.ProxyAdapter
+func (b *Base) Name() string {
+	return b.name
+}
+
+// Type implements C.ProxyAdapter
+func (b *Base) Type() C.AdapterType {
+	return b.tp
+}
+
+// StreamConn implements C.ProxyAdapter
+func (b *Base) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
+	return c, errors.New("no support")
+}
+
+// DialUDP implements C.ProxyAdapter
+func (b *Base) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
+	return nil, errors.New("no support")
+}
+
+// SupportUDP implements C.ProxyAdapter
+func (b *Base) SupportUDP() bool {
+	return b.udp
+}
+
+// MarshalJSON implements C.ProxyAdapter
+func (b *Base) MarshalJSON() ([]byte, error) {
+	return json.Marshal(map[string]string{
+		"type": b.Type().String(),
+	})
+}
+
+// Addr implements C.ProxyAdapter
+func (b *Base) Addr() string {
+	return b.addr
+}
+
+// Unwrap implements C.ProxyAdapter
+func (b *Base) Unwrap(metadata *C.Metadata) C.Proxy {
+	return nil
+}
+
+func NewBase(name string, addr string, tp C.AdapterType, udp bool) *Base {
+	return &Base{name, addr, tp, udp}
+}
+
+type conn struct {
+	net.Conn
+	chain C.Chain
+}
+
+// Chains implements C.Connection
+func (c *conn) Chains() C.Chain {
+	return c.chain
+}
+
+// AppendToChains implements C.Connection
+func (c *conn) AppendToChains(a C.ProxyAdapter) {
+	c.chain = append(c.chain, a.Name())
+}
+
+func NewConn(c net.Conn, a C.ProxyAdapter) C.Conn {
+	return &conn{c, []string{a.Name()}}
+}
+
+type packetConn struct {
+	net.PacketConn
+	chain C.Chain
+}
+
+// Chains implements C.Connection
+func (c *packetConn) Chains() C.Chain {
+	return c.chain
+}
+
+// AppendToChains implements C.Connection
+func (c *packetConn) AppendToChains(a C.ProxyAdapter) {
+	c.chain = append(c.chain, a.Name())
+}
+
+func newPacketConn(pc net.PacketConn, a C.ProxyAdapter) C.PacketConn {
+	return &packetConn{pc, []string{a.Name()}}
+}

adapter/outbound/direct.go

@@ -12,6 +12,7 @@ type Direct struct {
 	*Base
 }
 
+// DialContext implements C.ProxyAdapter
 func (d *Direct) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
 	address := net.JoinHostPort(metadata.String(), metadata.DstPort)
 
@@ -23,6 +24,7 @@ func (d *Direct) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn,
 	return NewConn(c, d), nil
 }
 
+// DialUDP implements C.ProxyAdapter
 func (d *Direct) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	pc, err := dialer.ListenPacket("udp", "")
 	if err != nil {

adapter/outbound/http.go

@@ -35,6 +35,7 @@ type HttpOption struct {
 	SkipCertVerify bool   `proxy:"skip-cert-verify,omitempty"`
 }
 
+// StreamConn implements C.ProxyAdapter
 func (h *Http) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	if h.tlsConfig != nil {
 		cc := tls.Client(c, h.tlsConfig)
@@ -51,13 +52,16 @@ func (h *Http) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	return c, nil
 }
 
-func (h *Http) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
+// DialContext implements C.ProxyAdapter
+func (h *Http) DialContext(ctx context.Context, metadata *C.Metadata) (_ C.Conn, err error) {
 	c, err := dialer.DialContext(ctx, "tcp", h.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", h.addr, err)
 	}
 	tcpKeepAlive(c)
 
+	defer safeConnClose(c, err)
+
 	c, err = h.StreamConn(c, metadata)
 	if err != nil {
 		return nil, err
@@ -121,7 +125,6 @@ func NewHttp(option HttpOption) *Http {
 		}
 		tlsConfig = &tls.Config{
 			InsecureSkipVerify: option.SkipCertVerify,
-			ClientSessionCache: getClientSessionCache(),
 			ServerName:         sni,
 		}
 	}

adapter/outbound/reject.go

@@ -14,10 +14,12 @@ type Reject struct {
 	*Base
 }
 
+// DialContext implements C.ProxyAdapter
 func (r *Reject) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
 	return NewConn(&NopConn{}, r), nil
 }
 
+// DialUDP implements C.ProxyAdapter
 func (r *Reject) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	return nil, errors.New("match reject rule")
 }

adapter/outbound/shadowsocks.go

@@ -2,7 +2,6 @@ package outbound
 
 import (
 	"context"
-	"encoding/json"
 	"errors"
 	"fmt"
 	"net"
@@ -10,10 +9,10 @@ import (
 
 	"github.com/Dreamacro/clash/common/structure"
 	"github.com/Dreamacro/clash/component/dialer"
-	obfs "github.com/Dreamacro/clash/component/simple-obfs"
-	"github.com/Dreamacro/clash/component/socks5"
-	v2rayObfs "github.com/Dreamacro/clash/component/v2ray-plugin"
 	C "github.com/Dreamacro/clash/constant"
+	obfs "github.com/Dreamacro/clash/transport/simple-obfs"
+	"github.com/Dreamacro/clash/transport/socks5"
+	v2rayObfs "github.com/Dreamacro/clash/transport/v2ray-plugin"
 
 	"github.com/Dreamacro/go-shadowsocks2/core"
 )
@@ -54,6 +53,7 @@ type v2rayObfsOption struct {
 	Mux            bool              `obfs:"mux,omitempty"`
 }
 
+// StreamConn implements C.ProxyAdapter
 func (ss *ShadowSocks) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	switch ss.obfsMode {
 	case "tls":
@@ -73,17 +73,21 @@ func (ss *ShadowSocks) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, e
 	return c, err
 }
 
-func (ss *ShadowSocks) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
+// DialContext implements C.ProxyAdapter
+func (ss *ShadowSocks) DialContext(ctx context.Context, metadata *C.Metadata) (_ C.Conn, err error) {
 	c, err := dialer.DialContext(ctx, "tcp", ss.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", ss.addr, err)
 	}
 	tcpKeepAlive(c)
 
+	defer safeConnClose(c, err)
+
 	c, err = ss.StreamConn(c, metadata)
 	return NewConn(c, ss), err
 }
 
+// DialUDP implements C.ProxyAdapter
 func (ss *ShadowSocks) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	pc, err := dialer.ListenPacket("udp", "")
 	if err != nil {
@@ -92,6 +96,7 @@ func (ss *ShadowSocks) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 
 	addr, err := resolveUDPAddr("udp", ss.addr)
 	if err != nil {
+		pc.Close()
 		return nil, err
 	}
 
@@ -99,12 +104,6 @@ func (ss *ShadowSocks) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	return newPacketConn(&ssPacketConn{PacketConn: pc, rAddr: addr}, ss), nil
 }
 
-func (ss *ShadowSocks) MarshalJSON() ([]byte, error) {
-	return json.Marshal(map[string]string{
-		"type": ss.Type().String(),
-	})
-}
-
 func NewShadowSocks(option ShadowSocksOption) (*ShadowSocks, error) {
 	addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
 	cipher := option.Cipher
@@ -150,7 +149,6 @@ func NewShadowSocks(option ShadowSocksOption) (*ShadowSocks, error) {
 		if opts.TLS {
 			v2rayOption.TLS = true
 			v2rayOption.SkipCertVerify = opts.SkipCertVerify
-			v2rayOption.SessionCache = getClientSessionCache()
 		}
 	}
 

adapter/outbound/shadowsocksr.go

@@ -2,15 +2,15 @@ package outbound
 
 import (
 	"context"
-	"encoding/json"
 	"fmt"
 	"net"
 	"strconv"
 
 	"github.com/Dreamacro/clash/component/dialer"
-	"github.com/Dreamacro/clash/component/ssr/obfs"
-	"github.com/Dreamacro/clash/component/ssr/protocol"
 	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/transport/ssr/obfs"
+	"github.com/Dreamacro/clash/transport/ssr/protocol"
+
 	"github.com/Dreamacro/go-shadowsocks2/core"
 	"github.com/Dreamacro/go-shadowsocks2/shadowaead"
 	"github.com/Dreamacro/go-shadowsocks2/shadowstream"
@@ -36,6 +36,7 @@ type ShadowSocksROption struct {
 	UDP           bool   `proxy:"udp,omitempty"`
 }
 
+// StreamConn implements C.ProxyAdapter
 func (ssr *ShadowSocksR) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	c = ssr.obfs.StreamConn(c)
 	c = ssr.cipher.StreamConn(c)
@@ -57,17 +58,21 @@ func (ssr *ShadowSocksR) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn,
 	return c, err
 }
 
-func (ssr *ShadowSocksR) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
+// DialContext implements C.ProxyAdapter
+func (ssr *ShadowSocksR) DialContext(ctx context.Context, metadata *C.Metadata) (_ C.Conn, err error) {
 	c, err := dialer.DialContext(ctx, "tcp", ssr.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", ssr.addr, err)
 	}
 	tcpKeepAlive(c)
 
+	defer safeConnClose(c, err)
+
 	c, err = ssr.StreamConn(c, metadata)
 	return NewConn(c, ssr), err
 }
 
+// DialUDP implements C.ProxyAdapter
 func (ssr *ShadowSocksR) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	pc, err := dialer.ListenPacket("udp", "")
 	if err != nil {
@@ -76,6 +81,7 @@ func (ssr *ShadowSocksR) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 
 	addr, err := resolveUDPAddr("udp", ssr.addr)
 	if err != nil {
+		pc.Close()
 		return nil, err
 	}
 
@@ -84,12 +90,6 @@ func (ssr *ShadowSocksR) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	return newPacketConn(&ssPacketConn{PacketConn: pc, rAddr: addr}, ssr), nil
 }
 
-func (ssr *ShadowSocksR) MarshalJSON() ([]byte, error) {
-	return json.Marshal(map[string]string{
-		"type": ssr.Type().String(),
-	})
-}
-
 func NewShadowSocksR(option ShadowSocksROption) (*ShadowSocksR, error) {
 	addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
 	cipher := option.Cipher

adapter/outbound/snell.go

@@ -8,9 +8,9 @@ import (
 
 	"github.com/Dreamacro/clash/common/structure"
 	"github.com/Dreamacro/clash/component/dialer"
-	obfs "github.com/Dreamacro/clash/component/simple-obfs"
-	"github.com/Dreamacro/clash/component/snell"
 	C "github.com/Dreamacro/clash/constant"
+	obfs "github.com/Dreamacro/clash/transport/simple-obfs"
+	"github.com/Dreamacro/clash/transport/snell"
 )
 
 type Snell struct {
@@ -48,6 +48,7 @@ func streamConn(c net.Conn, option streamOption) *snell.Snell {
 	return snell.StreamConn(c, option.psk, option.version)
 }
 
+// StreamConn implements C.ProxyAdapter
 func (s *Snell) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	c = streamConn(c, streamOption{s.psk, s.version, s.addr, s.obfsOption})
 	port, _ := strconv.Atoi(metadata.DstPort)
@@ -55,7 +56,8 @@ func (s *Snell) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	return c, err
 }
 
-func (s *Snell) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
+// DialContext implements C.ProxyAdapter
+func (s *Snell) DialContext(ctx context.Context, metadata *C.Metadata) (_ C.Conn, err error) {
 	if s.version == snell.Version2 {
 		c, err := s.pool.Get()
 		if err != nil {
@@ -63,7 +65,10 @@ func (s *Snell) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn,
 		}
 
 		port, _ := strconv.Atoi(metadata.DstPort)
-		err = snell.WriteHeader(c, metadata.String(), uint(port), s.version)
+		if err = snell.WriteHeader(c, metadata.String(), uint(port), s.version); err != nil {
+			c.Close()
+			return nil, err
+		}
 		return NewConn(c, s), err
 	}
 
@@ -73,6 +78,8 @@ func (s *Snell) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn,
 	}
 	tcpKeepAlive(c)
 
+	defer safeConnClose(c, err)
+
 	c, err = s.StreamConn(c, metadata)
 	return NewConn(c, s), err
 }

adapter/outbound/socks5.go

@@ -11,8 +11,8 @@ import (
 	"strconv"
 
 	"github.com/Dreamacro/clash/component/dialer"
-	"github.com/Dreamacro/clash/component/socks5"
 	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
 type Socks5 struct {
@@ -35,6 +35,7 @@ type Socks5Option struct {
 	SkipCertVerify bool   `proxy:"skip-cert-verify,omitempty"`
 }
 
+// StreamConn implements C.ProxyAdapter
 func (ss *Socks5) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	if ss.tls {
 		cc := tls.Client(c, ss.tlsConfig)
@@ -58,13 +59,16 @@ func (ss *Socks5) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error)
 	return c, nil
 }
 
-func (ss *Socks5) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
+// DialContext implements C.ProxyAdapter
+func (ss *Socks5) DialContext(ctx context.Context, metadata *C.Metadata) (_ C.Conn, err error) {
 	c, err := dialer.DialContext(ctx, "tcp", ss.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %w", ss.addr, err)
 	}
 	tcpKeepAlive(c)
 
+	defer safeConnClose(c, err)
+
 	c, err = ss.StreamConn(c, metadata)
 	if err != nil {
 		return nil, err
@@ -73,8 +77,9 @@ func (ss *Socks5) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn
 	return NewConn(c, ss), nil
 }
 
+// DialUDP implements C.ProxyAdapter
 func (ss *Socks5) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
-	ctx, cancel := context.WithTimeout(context.Background(), tcpTimeout)
+	ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTCPTimeout)
 	defer cancel()
 	c, err := dialer.DialContext(ctx, "tcp", ss.addr)
 	if err != nil {
@@ -88,11 +93,7 @@ func (ss *Socks5) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
 		c = cc
 	}
 
-	defer func() {
-		if err != nil {
-			c.Close()
-		}
-	}()
+	defer safeConnClose(c, err)
 
 	tcpKeepAlive(c)
 	var user *socks5.User
@@ -144,7 +145,6 @@ func NewSocks5(option Socks5Option) *Socks5 {
 	if option.TLS {
 		tlsConfig = &tls.Config{
 			InsecureSkipVerify: option.SkipCertVerify,
-			ClientSessionCache: getClientSessionCache(),
 			ServerName:         option.Server,
 		}
 	}

adapter/outbound/trojan.go

@@ -0,0 +1,176 @@
+package outbound
+
+import (
+	"context"
+	"crypto/tls"
+	"fmt"
+	"net"
+	"strconv"
+
+	"github.com/Dreamacro/clash/component/dialer"
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/transport/gun"
+	"github.com/Dreamacro/clash/transport/trojan"
+
+	"golang.org/x/net/http2"
+)
+
+type Trojan struct {
+	*Base
+	instance *trojan.Trojan
+
+	// for gun mux
+	gunTLSConfig *tls.Config
+	gunConfig    *gun.Config
+	transport    *http2.Transport
+}
+
+type TrojanOption struct {
+	Name           string      `proxy:"name"`
+	Server         string      `proxy:"server"`
+	Port           int         `proxy:"port"`
+	Password       string      `proxy:"password"`
+	ALPN           []string    `proxy:"alpn,omitempty"`
+	SNI            string      `proxy:"sni,omitempty"`
+	SkipCertVerify bool        `proxy:"skip-cert-verify,omitempty"`
+	UDP            bool        `proxy:"udp,omitempty"`
+	Network        string      `proxy:"network,omitempty"`
+	GrpcOpts       GrpcOptions `proxy:"grpc-opts,omitempty"`
+}
+
+// StreamConn implements C.ProxyAdapter
+func (t *Trojan) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
+	var err error
+	if t.transport != nil {
+		c, err = gun.StreamGunWithConn(c, t.gunTLSConfig, t.gunConfig)
+	} else {
+		c, err = t.instance.StreamConn(c)
+	}
+
+	if err != nil {
+		return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
+	}
+
+	err = t.instance.WriteHeader(c, trojan.CommandTCP, serializesSocksAddr(metadata))
+	return c, err
+}
+
+// DialContext implements C.ProxyAdapter
+func (t *Trojan) DialContext(ctx context.Context, metadata *C.Metadata) (_ C.Conn, err error) {
+	// gun transport
+	if t.transport != nil {
+		c, err := gun.StreamGunWithTransport(t.transport, t.gunConfig)
+		if err != nil {
+			return nil, err
+		}
+
+		if err = t.instance.WriteHeader(c, trojan.CommandTCP, serializesSocksAddr(metadata)); err != nil {
+			c.Close()
+			return nil, err
+		}
+
+		return NewConn(c, t), nil
+	}
+
+	c, err := dialer.DialContext(ctx, "tcp", t.addr)
+	if err != nil {
+		return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
+	}
+	tcpKeepAlive(c)
+
+	defer safeConnClose(c, err)
+
+	c, err = t.StreamConn(c, metadata)
+	if err != nil {
+		return nil, err
+	}
+
+	return NewConn(c, t), err
+}
+
+// DialUDP implements C.ProxyAdapter
+func (t *Trojan) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
+	var c net.Conn
+
+	// grpc transport
+	if t.transport != nil {
+		c, err = gun.StreamGunWithTransport(t.transport, t.gunConfig)
+		if err != nil {
+			return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
+		}
+		defer safeConnClose(c, err)
+	} else {
+		ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTCPTimeout)
+		defer cancel()
+		c, err = dialer.DialContext(ctx, "tcp", t.addr)
+		if err != nil {
+			return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
+		}
+		defer safeConnClose(c, err)
+		tcpKeepAlive(c)
+		c, err = t.instance.StreamConn(c)
+		if err != nil {
+			return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
+		}
+	}
+
+	err = t.instance.WriteHeader(c, trojan.CommandUDP, serializesSocksAddr(metadata))
+	if err != nil {
+		return nil, err
+	}
+
+	pc := t.instance.PacketConn(c)
+	return newPacketConn(pc, t), err
+}
+
+func NewTrojan(option TrojanOption) (*Trojan, error) {
+	addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
+
+	tOption := &trojan.Option{
+		Password:       option.Password,
+		ALPN:           option.ALPN,
+		ServerName:     option.Server,
+		SkipCertVerify: option.SkipCertVerify,
+	}
+
+	if option.SNI != "" {
+		tOption.ServerName = option.SNI
+	}
+
+	t := &Trojan{
+		Base: &Base{
+			name: option.Name,
+			addr: addr,
+			tp:   C.Trojan,
+			udp:  option.UDP,
+		},
+		instance: trojan.New(tOption),
+	}
+
+	if option.Network == "grpc" {
+		dialFn := func(network, addr string) (net.Conn, error) {
+			c, err := dialer.DialContext(context.Background(), "tcp", t.addr)
+			if err != nil {
+				return nil, fmt.Errorf("%s connect error: %s", t.addr, err.Error())
+			}
+			tcpKeepAlive(c)
+			return c, nil
+		}
+
+		tlsConfig := &tls.Config{
+			NextProtos:         option.ALPN,
+			MinVersion:         tls.VersionTLS12,
+			InsecureSkipVerify: tOption.SkipCertVerify,
+			ServerName:         tOption.ServerName,
+		}
+
+		t.transport = gun.NewHTTP2Client(dialFn, tlsConfig)
+		t.gunTLSConfig = tlsConfig
+		t.gunConfig = &gun.Config{
+			ServiceName: option.GrpcOpts.GrpcServiceName,
+			Host:        tOption.ServerName,
+		}
+	}
+
+	return t, nil
+}

adapter/outbound/util.go

@@ -2,56 +2,15 @@ package outbound
 
 import (
 	"bytes"
-	"crypto/tls"
-	"fmt"
 	"net"
-	"net/url"
 	"strconv"
-	"sync"
 	"time"
 
 	"github.com/Dreamacro/clash/component/resolver"
-	"github.com/Dreamacro/clash/component/socks5"
 	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
-const (
-	tcpTimeout = 5 * time.Second
-)
-
-var (
-	globalClientSessionCache tls.ClientSessionCache
-	once                     sync.Once
-)
-
-func urlToMetadata(rawURL string) (addr C.Metadata, err error) {
-	u, err := url.Parse(rawURL)
-	if err != nil {
-		return
-	}
-
-	port := u.Port()
-	if port == "" {
-		switch u.Scheme {
-		case "https":
-			port = "443"
-		case "http":
-			port = "80"
-		default:
-			err = fmt.Errorf("%s scheme not Support", rawURL)
-			return
-		}
-	}
-
-	addr = C.Metadata{
-		AddrType: C.AtypDomainName,
-		Host:     u.Hostname(),
-		DstIP:    nil,
-		DstPort:  port,
-	}
-	return
-}
-
 func tcpKeepAlive(c net.Conn) {
 	if tcp, ok := c.(*net.TCPConn); ok {
 		tcp.SetKeepAlive(true)
@@ -59,13 +18,6 @@ func tcpKeepAlive(c net.Conn) {
 	}
 }
 
-func getClientSessionCache() tls.ClientSessionCache {
-	once.Do(func() {
-		globalClientSessionCache = tls.NewLRUClientSessionCache(128)
-	})
-	return globalClientSessionCache
-}
-
 func serializesSocksAddr(metadata *C.Metadata) []byte {
 	var buf [][]byte
 	aType := uint8(metadata.AddrType)
@@ -98,3 +50,9 @@ func resolveUDPAddr(network, address string) (*net.UDPAddr, error) {
 	}
 	return net.ResolveUDPAddr(network, net.JoinHostPort(ip.String(), port))
 }
+
+func safeConnClose(c net.Conn, err error) {
+	if err != nil {
+		c.Close()
+	}
+}

adapter/outbound/vmess.go

@@ -2,6 +2,7 @@ package outbound
 
 import (
 	"context"
+	"crypto/tls"
 	"errors"
 	"fmt"
 	"net"
@@ -11,14 +12,22 @@ import (
 
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/resolver"
-	"github.com/Dreamacro/clash/component/vmess"
 	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/transport/gun"
+	"github.com/Dreamacro/clash/transport/vmess"
+
+	"golang.org/x/net/http2"
 )
 
 type Vmess struct {
 	*Base
 	client *vmess.Client
 	option *VmessOption
+
+	// for gun mux
+	gunTLSConfig *tls.Config
+	gunConfig    *gun.Config
+	transport    *http2.Transport
 }
 
 type VmessOption struct {
@@ -33,6 +42,7 @@ type VmessOption struct {
 	Network        string            `proxy:"network,omitempty"`
 	HTTPOpts       HTTPOptions       `proxy:"http-opts,omitempty"`
 	HTTP2Opts      HTTP2Options      `proxy:"h2-opts,omitempty"`
+	GrpcOpts       GrpcOptions       `proxy:"grpc-opts,omitempty"`
 	WSPath         string            `proxy:"ws-path,omitempty"`
 	WSHeaders      map[string]string `proxy:"ws-headers,omitempty"`
 	SkipCertVerify bool              `proxy:"skip-cert-verify,omitempty"`
@@ -50,6 +60,11 @@ type HTTP2Options struct {
 	Path string   `proxy:"path,omitempty"`
 }
 
+type GrpcOptions struct {
+	GrpcServiceName string `proxy:"grpc-service-name,omitempty"`
+}
+
+// StreamConn implements C.ProxyAdapter
 func (v *Vmess) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	var err error
 	switch v.option.Network {
@@ -71,7 +86,6 @@ func (v *Vmess) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 
 		if v.option.TLS {
 			wsOpts.TLS = true
-			wsOpts.SessionCache = getClientSessionCache()
 			wsOpts.SkipCertVerify = v.option.SkipCertVerify
 			wsOpts.ServerName = v.option.ServerName
 		}
@@ -83,7 +97,6 @@ func (v *Vmess) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 			tlsOpts := &vmess.TLSConfig{
 				Host:           host,
 				SkipCertVerify: v.option.SkipCertVerify,
-				SessionCache:   getClientSessionCache(),
 			}
 
 			if v.option.ServerName != "" {
@@ -110,7 +123,6 @@ func (v *Vmess) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 		tlsOpts := vmess.TLSConfig{
 			Host:           host,
 			SkipCertVerify: v.option.SkipCertVerify,
-			SessionCache:   getClientSessionCache(),
 			NextProtos:     []string{"h2"},
 		}
 
@@ -129,6 +141,8 @@ func (v *Vmess) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 		}
 
 		c, err = vmess.StreamH2Conn(c, h2Opts)
+	case "grpc":
+		c, err = gun.StreamGunWithConn(c, v.gunTLSConfig, v.gunConfig)
 	default:
 		// handle TLS
 		if v.option.TLS {
@@ -136,7 +150,6 @@ func (v *Vmess) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 			tlsOpts := &vmess.TLSConfig{
 				Host:           host,
 				SkipCertVerify: v.option.SkipCertVerify,
-				SessionCache:   getClientSessionCache(),
 			}
 
 			if v.option.ServerName != "" {
@@ -154,19 +167,38 @@ func (v *Vmess) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
 	return v.client.StreamConn(c, parseVmessAddr(metadata))
 }
 
-func (v *Vmess) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
+// DialContext implements C.ProxyAdapter
+func (v *Vmess) DialContext(ctx context.Context, metadata *C.Metadata) (_ C.Conn, err error) {
+	// gun transport
+	if v.transport != nil {
+		c, err := gun.StreamGunWithTransport(v.transport, v.gunConfig)
+		if err != nil {
+			return nil, err
+		}
+		defer safeConnClose(c, err)
+
+		c, err = v.client.StreamConn(c, parseVmessAddr(metadata))
+		if err != nil {
+			return nil, err
+		}
+
+		return NewConn(c, v), nil
+	}
+
 	c, err := dialer.DialContext(ctx, "tcp", v.addr)
 	if err != nil {
 		return nil, fmt.Errorf("%s connect error: %s", v.addr, err.Error())
 	}
 	tcpKeepAlive(c)
+	defer safeConnClose(c, err)
 
 	c, err = v.StreamConn(c, metadata)
 	return NewConn(c, v), err
 }
 
-func (v *Vmess) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
-	// vmess use stream-oriented udp, so clash needs a net.UDPAddr
+// DialUDP implements C.ProxyAdapter
+func (v *Vmess) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
+	// vmess use stream-oriented udp with a special address, so we needs a net.UDPAddr
 	if !metadata.Resolved() {
 		ip, err := resolver.ResolveIP(metadata.Host)
 		if err != nil {
@@ -175,17 +207,33 @@ func (v *Vmess) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 		metadata.DstIP = ip
 	}
 
-	ctx, cancel := context.WithTimeout(context.Background(), tcpTimeout)
+	var c net.Conn
+	// gun transport
+	if v.transport != nil {
+		c, err = gun.StreamGunWithTransport(v.transport, v.gunConfig)
+		if err != nil {
+			return nil, err
+		}
+		defer safeConnClose(c, err)
+
+		c, err = v.client.StreamConn(c, parseVmessAddr(metadata))
+	} else {
+		ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTCPTimeout)
 		defer cancel()
-	c, err := dialer.DialContext(ctx, "tcp", v.addr)
+		c, err = dialer.DialContext(ctx, "tcp", v.addr)
 		if err != nil {
 			return nil, fmt.Errorf("%s connect error: %s", v.addr, err.Error())
 		}
 		tcpKeepAlive(c)
+		defer safeConnClose(c, err)
+
 		c, err = v.StreamConn(c, metadata)
+	}
+
 	if err != nil {
 		return nil, fmt.Errorf("new vmess client error: %v", err)
 	}
+
 	return newPacketConn(&vmessPacketConn{Conn: c, rAddr: metadata.UDPAddr()}, v), nil
 }
 
@@ -197,15 +245,20 @@ func NewVmess(option VmessOption) (*Vmess, error) {
 		Security: security,
 		HostName: option.Server,
 		Port:     strconv.Itoa(option.Port),
+		IsAead:   option.AlterID == 0,
 	})
 	if err != nil {
 		return nil, err
 	}
-	if option.Network == "h2" && !option.TLS {
-		return nil, fmt.Errorf("TLS must be true with h2 network")
+
+	switch option.Network {
+	case "h2", "grpc":
+		if !option.TLS {
+			return nil, fmt.Errorf("TLS must be true with h2/grpc network")
+		}
 	}
 
-	return &Vmess{
+	v := &Vmess{
 		Base: &Base{
 			name: option.Name,
 			addr: net.JoinHostPort(option.Server, strconv.Itoa(option.Port)),
@@ -214,7 +267,44 @@ func NewVmess(option VmessOption) (*Vmess, error) {
 		},
 		client: client,
 		option: &option,
-	}, nil
+	}
+
+	switch option.Network {
+	case "h2":
+		if len(option.HTTP2Opts.Host) == 0 {
+			option.HTTP2Opts.Host = append(option.HTTP2Opts.Host, "www.example.com")
+		}
+	case "grpc":
+		dialFn := func(network, addr string) (net.Conn, error) {
+			c, err := dialer.DialContext(context.Background(), "tcp", v.addr)
+			if err != nil {
+				return nil, fmt.Errorf("%s connect error: %s", v.addr, err.Error())
+			}
+			tcpKeepAlive(c)
+			return c, nil
+		}
+
+		gunConfig := &gun.Config{
+			ServiceName: v.option.GrpcOpts.GrpcServiceName,
+			Host:        v.option.ServerName,
+		}
+		tlsConfig := &tls.Config{
+			InsecureSkipVerify: v.option.SkipCertVerify,
+			ServerName:         v.option.ServerName,
+		}
+
+		if v.option.ServerName == "" {
+			host, _, _ := net.SplitHostPort(v.addr)
+			tlsConfig.ServerName = host
+			gunConfig.Host = host
+		}
+
+		v.gunTLSConfig = tlsConfig
+		v.gunConfig = gunConfig
+		v.transport = gun.NewHTTP2Client(dialFn, tlsConfig)
+	}
+
+	return v, nil
 }
 
 func parseVmessAddr(metadata *C.Metadata) *vmess.DstAddr {

adapter/outboundgroup/common.go

@@ -3,7 +3,7 @@ package outboundgroup
 import (
 	"time"
 
-	"github.com/Dreamacro/clash/adapters/provider"
+	"github.com/Dreamacro/clash/adapter/provider"
 	C "github.com/Dreamacro/clash/constant"
 )
 

adapter/outboundgroup/fallback.go

@@ -4,8 +4,8 @@ import (
 	"context"
 	"encoding/json"
 
-	"github.com/Dreamacro/clash/adapters/outbound"
-	"github.com/Dreamacro/clash/adapters/provider"
+	"github.com/Dreamacro/clash/adapter/outbound"
+	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/common/singledo"
 	C "github.com/Dreamacro/clash/constant"
 )
@@ -22,6 +22,7 @@ func (f *Fallback) Now() string {
 	return proxy.Name()
 }
 
+// DialContext implements C.ProxyAdapter
 func (f *Fallback) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
 	proxy := f.findAliveProxy(true)
 	c, err := proxy.DialContext(ctx, metadata)
@@ -31,6 +32,7 @@ func (f *Fallback) DialContext(ctx context.Context, metadata *C.Metadata) (C.Con
 	return c, err
 }
 
+// DialUDP implements C.ProxyAdapter
 func (f *Fallback) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	proxy := f.findAliveProxy(true)
 	pc, err := proxy.DialUDP(metadata)
@@ -40,6 +42,7 @@ func (f *Fallback) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	return pc, err
 }
 
+// SupportUDP implements C.ProxyAdapter
 func (f *Fallback) SupportUDP() bool {
 	if f.disableUDP {
 		return false
@@ -49,6 +52,7 @@ func (f *Fallback) SupportUDP() bool {
 	return proxy.SupportUDP()
 }
 
+// MarshalJSON implements C.ProxyAdapter
 func (f *Fallback) MarshalJSON() ([]byte, error) {
 	var all []string
 	for _, proxy := range f.proxies(false) {
@@ -61,6 +65,7 @@ func (f *Fallback) MarshalJSON() ([]byte, error) {
 	})
 }
 
+// Unwrap implements C.ProxyAdapter
 func (f *Fallback) Unwrap(metadata *C.Metadata) C.Proxy {
 	proxy := f.findAliveProxy(true)
 	return proxy

adapter/outboundgroup/loadbalance.go

@@ -7,8 +7,8 @@ import (
 	"fmt"
 	"net"
 
-	"github.com/Dreamacro/clash/adapters/outbound"
-	"github.com/Dreamacro/clash/adapters/provider"
+	"github.com/Dreamacro/clash/adapter/outbound"
+	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/common/murmur3"
 	"github.com/Dreamacro/clash/common/singledo"
 	C "github.com/Dreamacro/clash/constant"
@@ -68,6 +68,7 @@ func jumpHash(key uint64, buckets int32) int32 {
 	return int32(b)
 }
 
+// DialContext implements C.ProxyAdapter
 func (lb *LoadBalance) DialContext(ctx context.Context, metadata *C.Metadata) (c C.Conn, err error) {
 	defer func() {
 		if err == nil {
@@ -81,6 +82,7 @@ func (lb *LoadBalance) DialContext(ctx context.Context, metadata *C.Metadata) (c
 	return
 }
 
+// DialUDP implements C.ProxyAdapter
 func (lb *LoadBalance) DialUDP(metadata *C.Metadata) (pc C.PacketConn, err error) {
 	defer func() {
 		if err == nil {
@@ -93,6 +95,7 @@ func (lb *LoadBalance) DialUDP(metadata *C.Metadata) (pc C.PacketConn, err error
 	return proxy.DialUDP(metadata)
 }
 
+// SupportUDP implements C.ProxyAdapter
 func (lb *LoadBalance) SupportUDP() bool {
 	return !lb.disableUDP
 }
@@ -130,6 +133,7 @@ func strategyConsistentHashing() strategyFn {
 	}
 }
 
+// Unwrap implements C.ProxyAdapter
 func (lb *LoadBalance) Unwrap(metadata *C.Metadata) C.Proxy {
 	proxies := lb.proxies(true)
 	return lb.strategyFn(proxies, metadata)
@@ -143,6 +147,7 @@ func (lb *LoadBalance) proxies(touch bool) []C.Proxy {
 	return elm.([]C.Proxy)
 }
 
+// MarshalJSON implements C.ProxyAdapter
 func (lb *LoadBalance) MarshalJSON() ([]byte, error) {
 	var all []string
 	for _, proxy := range lb.proxies(false) {

adapter/outboundgroup/parser.go

@@ -4,7 +4,7 @@ import (
 	"errors"
 	"fmt"
 
-	"github.com/Dreamacro/clash/adapters/provider"
+	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/common/structure"
 	C "github.com/Dreamacro/clash/constant"
 )

adapter/outboundgroup/relay.go

@@ -6,8 +6,8 @@ import (
 	"errors"
 	"fmt"
 
-	"github.com/Dreamacro/clash/adapters/outbound"
-	"github.com/Dreamacro/clash/adapters/provider"
+	"github.com/Dreamacro/clash/adapter/outbound"
+	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/common/singledo"
 	"github.com/Dreamacro/clash/component/dialer"
 	C "github.com/Dreamacro/clash/constant"
@@ -19,6 +19,7 @@ type Relay struct {
 	providers []provider.ProxyProvider
 }
 
+// DialContext implements C.ProxyAdapter
 func (r *Relay) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
 	proxies := r.proxies(metadata, true)
 	if len(proxies) == 0 {
@@ -56,6 +57,7 @@ func (r *Relay) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn,
 	return outbound.NewConn(c, r), nil
 }
 
+// MarshalJSON implements C.ProxyAdapter
 func (r *Relay) MarshalJSON() ([]byte, error) {
 	var all []string
 	for _, proxy := range r.rawProxies(false) {

adapter/outboundgroup/selector.go

@@ -5,8 +5,8 @@ import (
 	"encoding/json"
 	"errors"
 
-	"github.com/Dreamacro/clash/adapters/outbound"
-	"github.com/Dreamacro/clash/adapters/provider"
+	"github.com/Dreamacro/clash/adapter/outbound"
+	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/common/singledo"
 	C "github.com/Dreamacro/clash/constant"
 )
@@ -19,6 +19,7 @@ type Selector struct {
 	providers  []provider.ProxyProvider
 }
 
+// DialContext implements C.ProxyAdapter
 func (s *Selector) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
 	c, err := s.selectedProxy(true).DialContext(ctx, metadata)
 	if err == nil {
@@ -27,6 +28,7 @@ func (s *Selector) DialContext(ctx context.Context, metadata *C.Metadata) (C.Con
 	return c, err
 }
 
+// DialUDP implements C.ProxyAdapter
 func (s *Selector) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	pc, err := s.selectedProxy(true).DialUDP(metadata)
 	if err == nil {
@@ -35,6 +37,7 @@ func (s *Selector) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	return pc, err
 }
 
+// SupportUDP implements C.ProxyAdapter
 func (s *Selector) SupportUDP() bool {
 	if s.disableUDP {
 		return false
@@ -43,6 +46,7 @@ func (s *Selector) SupportUDP() bool {
 	return s.selectedProxy(false).SupportUDP()
 }
 
+// MarshalJSON implements C.ProxyAdapter
 func (s *Selector) MarshalJSON() ([]byte, error) {
 	var all []string
 	for _, proxy := range getProvidersProxies(s.providers, false) {
@@ -72,6 +76,7 @@ func (s *Selector) Set(name string) error {
 	return errors.New("proxy not exist")
 }
 
+// Unwrap implements C.ProxyAdapter
 func (s *Selector) Unwrap(metadata *C.Metadata) C.Proxy {
 	return s.selectedProxy(true)
 }

adapter/outboundgroup/urltest.go

@@ -5,8 +5,8 @@ import (
 	"encoding/json"
 	"time"
 
-	"github.com/Dreamacro/clash/adapters/outbound"
-	"github.com/Dreamacro/clash/adapters/provider"
+	"github.com/Dreamacro/clash/adapter/outbound"
+	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/common/singledo"
 	C "github.com/Dreamacro/clash/constant"
 )
@@ -33,6 +33,7 @@ func (u *URLTest) Now() string {
 	return u.fast(false).Name()
 }
 
+// DialContext implements C.ProxyAdapter
 func (u *URLTest) DialContext(ctx context.Context, metadata *C.Metadata) (c C.Conn, err error) {
 	c, err = u.fast(true).DialContext(ctx, metadata)
 	if err == nil {
@@ -41,6 +42,7 @@ func (u *URLTest) DialContext(ctx context.Context, metadata *C.Metadata) (c C.Co
 	return c, err
 }
 
+// DialUDP implements C.ProxyAdapter
 func (u *URLTest) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	pc, err := u.fast(true).DialUDP(metadata)
 	if err == nil {
@@ -49,6 +51,7 @@ func (u *URLTest) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
 	return pc, err
 }
 
+// Unwrap implements C.ProxyAdapter
 func (u *URLTest) Unwrap(metadata *C.Metadata) C.Proxy {
 	return u.fast(true)
 }
@@ -66,7 +69,13 @@ func (u *URLTest) fast(touch bool) C.Proxy {
 		proxies := u.proxies(touch)
 		fast := proxies[0]
 		min := fast.LastDelay()
+		fastNotExist := true
+
 		for _, proxy := range proxies[1:] {
+			if u.fastNode != nil && proxy.Name() == u.fastNode.Name() {
+				fastNotExist = false
+			}
+
 			if !proxy.Alive() {
 				continue
 			}
@@ -79,7 +88,7 @@ func (u *URLTest) fast(touch bool) C.Proxy {
 		}
 
 		// tolerance
-		if u.fastNode == nil || u.fastNode.LastDelay() > fast.LastDelay()+u.tolerance {
+		if u.fastNode == nil || fastNotExist || !u.fastNode.Alive() || u.fastNode.LastDelay() > fast.LastDelay()+u.tolerance {
 			u.fastNode = fast
 		}
 
@@ -89,6 +98,7 @@ func (u *URLTest) fast(touch bool) C.Proxy {
 	return elm.(C.Proxy)
 }
 
+// SupportUDP implements C.ProxyAdapter
 func (u *URLTest) SupportUDP() bool {
 	if u.disableUDP {
 		return false
@@ -97,6 +107,7 @@ func (u *URLTest) SupportUDP() bool {
 	return u.fast(false).SupportUDP()
 }
 
+// MarshalJSON implements C.ProxyAdapter
 func (u *URLTest) MarshalJSON() ([]byte, error) {
 	var all []string
 	for _, proxy := range u.proxies(false) {

adapter/outboundgroup/util.go

@@ -16,16 +16,24 @@ func addrToMetadata(rawAddress string) (addr *C.Metadata, err error) {
 	}
 
 	ip := net.ParseIP(host)
-	if ip != nil {
-		if ip.To4() != nil {
+	if ip == nil {
 		addr = &C.Metadata{
-				AddrType: C.AtypIPv4,
-				Host:     "",
-				DstIP:    ip,
+			AddrType: C.AtypDomainName,
+			Host:     host,
+			DstIP:    nil,
 			DstPort:  port,
 		}
 		return
-		} else {
+	} else if ip4 := ip.To4(); ip4 != nil {
+		addr = &C.Metadata{
+			AddrType: C.AtypIPv4,
+			Host:     "",
+			DstIP:    ip4,
+			DstPort:  port,
+		}
+		return
+	}
+
 	addr = &C.Metadata{
 		AddrType: C.AtypIPv6,
 		Host:     "",
@@ -34,16 +42,6 @@ func addrToMetadata(rawAddress string) (addr *C.Metadata, err error) {
 	}
 	return
 }
-	} else {
-		addr = &C.Metadata{
-			AddrType: C.AtypDomainName,
-			Host:     host,
-			DstIP:    nil,
-			DstPort:  port,
-		}
-		return
-	}
-}
 
 func tcpKeepAlive(c net.Conn) {
 	if tcp, ok := c.(*net.TCPConn); ok {

adapter/parser.go

@@ -1,8 +1,9 @@
-package outbound
+package adapter
 
 import (
 	"fmt"
 
+	"github.com/Dreamacro/clash/adapter/outbound"
 	"github.com/Dreamacro/clash/common/structure"
 	C "github.com/Dreamacro/clash/constant"
 )
@@ -20,36 +21,36 @@ func ParseProxy(mapping map[string]interface{}) (C.Proxy, error) {
 	)
 	switch proxyType {
 	case "ss":
-		ssOption := &ShadowSocksOption{}
+		ssOption := &outbound.ShadowSocksOption{}
 		err = decoder.Decode(mapping, ssOption)
 		if err != nil {
 			break
 		}
-		proxy, err = NewShadowSocks(*ssOption)
+		proxy, err = outbound.NewShadowSocks(*ssOption)
 	case "ssr":
-		ssrOption := &ShadowSocksROption{}
+		ssrOption := &outbound.ShadowSocksROption{}
 		err = decoder.Decode(mapping, ssrOption)
 		if err != nil {
 			break
 		}
-		proxy, err = NewShadowSocksR(*ssrOption)
+		proxy, err = outbound.NewShadowSocksR(*ssrOption)
 	case "socks5":
-		socksOption := &Socks5Option{}
+		socksOption := &outbound.Socks5Option{}
 		err = decoder.Decode(mapping, socksOption)
 		if err != nil {
 			break
 		}
-		proxy = NewSocks5(*socksOption)
+		proxy = outbound.NewSocks5(*socksOption)
 	case "http":
-		httpOption := &HttpOption{}
+		httpOption := &outbound.HttpOption{}
 		err = decoder.Decode(mapping, httpOption)
 		if err != nil {
 			break
 		}
-		proxy = NewHttp(*httpOption)
+		proxy = outbound.NewHttp(*httpOption)
 	case "vmess":
-		vmessOption := &VmessOption{
-			HTTPOpts: HTTPOptions{
+		vmessOption := &outbound.VmessOption{
+			HTTPOpts: outbound.HTTPOptions{
 				Method: "GET",
 				Path:   []string{"/"},
 			},
@@ -58,21 +59,21 @@ func ParseProxy(mapping map[string]interface{}) (C.Proxy, error) {
 		if err != nil {
 			break
 		}
-		proxy, err = NewVmess(*vmessOption)
+		proxy, err = outbound.NewVmess(*vmessOption)
 	case "snell":
-		snellOption := &SnellOption{}
+		snellOption := &outbound.SnellOption{}
 		err = decoder.Decode(mapping, snellOption)
 		if err != nil {
 			break
 		}
-		proxy, err = NewSnell(*snellOption)
+		proxy, err = outbound.NewSnell(*snellOption)
 	case "trojan":
-		trojanOption := &TrojanOption{}
+		trojanOption := &outbound.TrojanOption{}
 		err = decoder.Decode(mapping, trojanOption)
 		if err != nil {
 			break
 		}
-		proxy, err = NewTrojan(*trojanOption)
+		proxy, err = outbound.NewTrojan(*trojanOption)
 	default:
 		return nil, fmt.Errorf("unsupport proxy type: %s", proxyType)
 	}

adapter/provider/fetcher.go

@@ -72,6 +72,8 @@ func (f *fetcher) Initial() (interface{}, error) {
 		if err != nil {
 			return nil, err
 		}
+
+		isLocal = false
 	}
 
 	if f.vehicle.Type() != File && !isLocal {

adapter/provider/parser.go

@@ -40,7 +40,7 @@ func ParseProxyProvider(name string, mapping map[string]interface{}) (ProxyProvi
 		return nil, err
 	}
 
-	var hcInterval uint = 0
+	var hcInterval uint
 	if schema.HealthCheck.Enable {
 		hcInterval = uint(schema.HealthCheck.Interval)
 	}

adapter/provider/provider.go

@@ -7,7 +7,7 @@ import (
 	"runtime"
 	"time"
 
-	"github.com/Dreamacro/clash/adapters/outbound"
+	"github.com/Dreamacro/clash/adapter"
 	C "github.com/Dreamacro/clash/constant"
 
 	"gopkg.in/yaml.v2"
@@ -133,7 +133,7 @@ func proxiesParse(buf []byte) (interface{}, error) {
 
 	proxies := []C.Proxy{}
 	for idx, mapping := range schema.Proxies {
-		proxy, err := outbound.ParseProxy(mapping)
+		proxy, err := adapter.ParseProxy(mapping)
 		if err != nil {
 			return nil, fmt.Errorf("proxy %d error: %w", idx, err)
 		}

adapters/inbound/http.go

@@ -1,45 +0,0 @@
-package inbound
-
-import (
-	"net"
-	"net/http"
-	"strings"
-
-	C "github.com/Dreamacro/clash/constant"
-	"github.com/Dreamacro/clash/context"
-)
-
-// NewHTTP recieve normal http request and return HTTPContext
-func NewHTTP(request *http.Request, conn net.Conn) *context.HTTPContext {
-	metadata := parseHTTPAddr(request)
-	metadata.Type = C.HTTP
-	if ip, port, err := parseAddr(conn.RemoteAddr().String()); err == nil {
-		metadata.SrcIP = ip
-		metadata.SrcPort = port
-	}
-	return context.NewHTTPContext(conn, request, metadata)
-}
-
-// RemoveHopByHopHeaders remove hop-by-hop header
-func RemoveHopByHopHeaders(header http.Header) {
-	// Strip hop-by-hop header based on RFC:
-	// http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html#sec13.5.1
-	// https://www.mnot.net/blog/2011/07/11/what_proxies_must_do
-
-	header.Del("Proxy-Connection")
-	header.Del("Proxy-Authenticate")
-	header.Del("Proxy-Authorization")
-	header.Del("TE")
-	header.Del("Trailers")
-	header.Del("Transfer-Encoding")
-	header.Del("Upgrade")
-
-	connections := header.Get("Connection")
-	header.Del("Connection")
-	if len(connections) == 0 {
-		return
-	}
-	for _, h := range strings.Split(connections, ",") {
-		header.Del(strings.TrimSpace(h))
-	}
-}

adapters/outbound/trojan.go

@@ -1,107 +0,0 @@
-package outbound
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"net"
-	"strconv"
-
-	"github.com/Dreamacro/clash/component/dialer"
-	"github.com/Dreamacro/clash/component/trojan"
-	C "github.com/Dreamacro/clash/constant"
-)
-
-type Trojan struct {
-	*Base
-	instance *trojan.Trojan
-}
-
-type TrojanOption struct {
-	Name           string   `proxy:"name"`
-	Server         string   `proxy:"server"`
-	Port           int      `proxy:"port"`
-	Password       string   `proxy:"password"`
-	ALPN           []string `proxy:"alpn,omitempty"`
-	SNI            string   `proxy:"sni,omitempty"`
-	SkipCertVerify bool     `proxy:"skip-cert-verify,omitempty"`
-	UDP            bool     `proxy:"udp,omitempty"`
-}
-
-func (t *Trojan) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
-	c, err := t.instance.StreamConn(c)
-	if err != nil {
-		return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
-	}
-
-	err = t.instance.WriteHeader(c, trojan.CommandTCP, serializesSocksAddr(metadata))
-	return c, err
-}
-
-func (t *Trojan) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
-	c, err := dialer.DialContext(ctx, "tcp", t.addr)
-	if err != nil {
-		return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
-	}
-	tcpKeepAlive(c)
-	c, err = t.StreamConn(c, metadata)
-	if err != nil {
-		return nil, err
-	}
-
-	return NewConn(c, t), err
-}
-
-func (t *Trojan) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
-	ctx, cancel := context.WithTimeout(context.Background(), tcpTimeout)
-	defer cancel()
-	c, err := dialer.DialContext(ctx, "tcp", t.addr)
-	if err != nil {
-		return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
-	}
-	tcpKeepAlive(c)
-	c, err = t.instance.StreamConn(c)
-	if err != nil {
-		return nil, fmt.Errorf("%s connect error: %w", t.addr, err)
-	}
-
-	err = t.instance.WriteHeader(c, trojan.CommandUDP, serializesSocksAddr(metadata))
-	if err != nil {
-		return nil, err
-	}
-
-	pc := t.instance.PacketConn(c)
-	return newPacketConn(pc, t), err
-}
-
-func (t *Trojan) MarshalJSON() ([]byte, error) {
-	return json.Marshal(map[string]string{
-		"type": t.Type().String(),
-	})
-}
-
-func NewTrojan(option TrojanOption) (*Trojan, error) {
-	addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
-
-	tOption := &trojan.Option{
-		Password:           option.Password,
-		ALPN:               option.ALPN,
-		ServerName:         option.Server,
-		SkipCertVerify:     option.SkipCertVerify,
-		ClientSessionCache: getClientSessionCache(),
-	}
-
-	if option.SNI != "" {
-		tOption.ServerName = option.SNI
-	}
-
-	return &Trojan{
-		Base: &Base{
-			name: option.Name,
-			addr: addr,
-			tp:   C.Trojan,
-			udp:  option.UDP,
-		},
-		instance: trojan.New(tOption),
-	}, nil
-}

common/net/bufconn.go

@@ -1,4 +1,4 @@
-package mixed
+package net
 
 import (
 	"bufio"

component/process/process_darwin.go

@@ -1,12 +1,13 @@
 package process
 
 import (
-	"bytes"
 	"encoding/binary"
 	"net"
 	"path/filepath"
 	"syscall"
 	"unsafe"
+
+	"golang.org/x/sys/unix"
 )
 
 const (
@@ -94,12 +95,8 @@ func getExecPathFromPID(pid uint32) (string, error) {
 	if errno != 0 {
 		return "", errno
 	}
-	firstZero := bytes.IndexByte(buf, 0)
-	if firstZero <= 0 {
-		return "", nil
-	}
 
-	return filepath.Base(string(buf[:firstZero])), nil
+	return filepath.Base(unix.ByteSliceToString(buf)), nil
 }
 
 func readNativeUint32(b []byte) uint32 {

component/process/process_freebsd_amd64.go

@@ -30,6 +30,10 @@ func findProcessName(network string, ip net.IP, srcPort int) (string, error) {
 		}
 	})
 
+	if defaultSearcher == nil {
+		return "", ErrPlatformNotSupport
+	}
+
 	var spath string
 	isTCP := network == TCP
 	switch network {
@@ -173,7 +177,7 @@ func (s *searcher) searchSocketPid(socket uint64) (uint32, error) {
 }
 
 func newSearcher(major int) *searcher {
-	var s *searcher = nil
+	var s *searcher
 	switch major {
 	case 11:
 		s = &searcher{
@@ -190,6 +194,8 @@ func newSearcher(major int) *searcher {
 			udpInpOffset: 8,
 		}
 	case 12:
+		fallthrough
+	case 13:
 		s = &searcher{
 			headSize:     64,
 			tcpItemSize:  744,

component/process/process_windows.go

@@ -22,8 +22,8 @@ const (
 )
 
 var (
-	getExTcpTable uintptr
-	getExUdpTable uintptr
+	getExTCPTable uintptr
+	getExUDPTable uintptr
 	queryProcName uintptr
 
 	once sync.Once
@@ -35,12 +35,12 @@ func initWin32API() error {
 		return fmt.Errorf("LoadLibrary iphlpapi.dll failed: %s", err.Error())
 	}
 
-	getExTcpTable, err = windows.GetProcAddress(h, tcpTableFunc)
+	getExTCPTable, err = windows.GetProcAddress(h, tcpTableFunc)
 	if err != nil {
 		return fmt.Errorf("GetProcAddress of %s failed: %s", tcpTableFunc, err.Error())
 	}
 
-	getExUdpTable, err = windows.GetProcAddress(h, udpTableFunc)
+	getExUDPTable, err = windows.GetProcAddress(h, udpTableFunc)
 	if err != nil {
 		return fmt.Errorf("GetProcAddress of %s failed: %s", udpTableFunc, err.Error())
 	}
@@ -76,10 +76,10 @@ func findProcessName(network string, ip net.IP, srcPort int) (string, error) {
 	var fn uintptr
 	switch network {
 	case TCP:
-		fn = getExTcpTable
+		fn = getExTCPTable
 		class = tcpTablePidConn
 	case UDP:
-		fn = getExUdpTable
+		fn = getExUDPTable
 		class = udpTablePid
 	default:
 		return "", ErrInvalidNetwork

component/profile/cachefile/cache.go

@@ -26,7 +26,6 @@ type cache struct {
 type CacheFile struct {
 	path  string
 	model *cache
-	enc   *gob.Encoder
 	buf   *bytes.Buffer
 	mux   sync.Mutex
 }
@@ -39,15 +38,11 @@ func (c *CacheFile) SetSelected(group, selected string) {
 	c.mux.Lock()
 	defer c.mux.Unlock()
 
-	model, err := c.element()
-	if err != nil {
-		log.Warnln("[CacheFile] read cache %s failed: %s", c.path, err.Error())
-		return
-	}
+	model := c.element()
 
 	model.Selected[group] = selected
 	c.buf.Reset()
-	if err := c.enc.Encode(model); err != nil {
+	if err := gob.NewEncoder(c.buf).Encode(model); err != nil {
 		log.Warnln("[CacheFile] encode gob failed: %s", err.Error())
 		return
 	}
@@ -66,11 +61,7 @@ func (c *CacheFile) SelectedMap() map[string]string {
 	c.mux.Lock()
 	defer c.mux.Unlock()
 
-	model, err := c.element()
-	if err != nil {
-		log.Warnln("[CacheFile] read cache %s failed: %s", c.path, err.Error())
-		return nil
-	}
+	model := c.element()
 
 	mapping := map[string]string{}
 	for k, v := range model.Selected {
@@ -79,9 +70,9 @@ func (c *CacheFile) SelectedMap() map[string]string {
 	return mapping
 }
 
-func (c *CacheFile) element() (*cache, error) {
+func (c *CacheFile) element() *cache {
 	if c.model != nil {
-		return c.model, nil
+		return c.model
 	}
 
 	model := &cache{
@@ -90,24 +81,19 @@ func (c *CacheFile) element() (*cache, error) {
 
 	if buf, err := ioutil.ReadFile(c.path); err == nil {
 		bufReader := bytes.NewBuffer(buf)
-		dec := gob.NewDecoder(bufReader)
-		if err := dec.Decode(model); err != nil {
-			return nil, err
-		}
+		gob.NewDecoder(bufReader).Decode(model)
 	}
 
 	c.model = model
-	return c.model, nil
+	return c.model
 }
 
 // Cache return singleton of CacheFile
 func Cache() *CacheFile {
 	initOnce.Do(func() {
-		buf := &bytes.Buffer{}
 		defaultCache = &CacheFile{
 			path: C.Path.Cache(),
-			buf:  buf,
-			enc:  gob.NewEncoder(buf),
+			buf:  &bytes.Buffer{},
 		}
 	})
 

component/resolver/resolver.go

@@ -1,9 +1,12 @@
 package resolver
 
 import (
+	"context"
 	"errors"
+	"math/rand"
 	"net"
 	"strings"
+	"time"
 
 	"github.com/Dreamacro/clash/component/trie"
 )
@@ -18,6 +21,9 @@ var (
 
 	// DefaultHosts aim to resolve hosts
 	DefaultHosts = trie.New()
+
+	// DefaultDNSTimeout defined the default dns request timeout
+	DefaultDNSTimeout = time.Second * 5
 )
 
 var (
@@ -52,20 +58,18 @@ func ResolveIPv4(host string) (net.IP, error) {
 		return DefaultResolver.ResolveIPv4(host)
 	}
 
-	ipAddrs, err := net.LookupIP(host)
+	ctx, cancel := context.WithTimeout(context.Background(), DefaultDNSTimeout)
+	defer cancel()
+	ipAddrs, err := net.DefaultResolver.LookupIP(ctx, "ip4", host)
 	if err != nil {
 		return nil, err
-	}
-
-	for _, ip := range ipAddrs {
-		if ip4 := ip.To4(); ip4 != nil {
-			return ip4, nil
-		}
-	}
-
+	} else if len(ipAddrs) == 0 {
 		return nil, ErrIPNotFound
 	}
 
+	return ipAddrs[rand.Intn(len(ipAddrs))], nil
+}
+
 // ResolveIPv6 with a host, return ipv6
 func ResolveIPv6(host string) (net.IP, error) {
 	if DisableIPv6 {
@@ -90,31 +94,29 @@ func ResolveIPv6(host string) (net.IP, error) {
 		return DefaultResolver.ResolveIPv6(host)
 	}
 
-	ipAddrs, err := net.LookupIP(host)
+	ctx, cancel := context.WithTimeout(context.Background(), DefaultDNSTimeout)
+	defer cancel()
+	ipAddrs, err := net.DefaultResolver.LookupIP(ctx, "ip6", host)
 	if err != nil {
 		return nil, err
-	}
-
-	for _, ip := range ipAddrs {
-		if ip.To4() == nil {
-			return ip, nil
-		}
-	}
-
+	} else if len(ipAddrs) == 0 {
 		return nil, ErrIPNotFound
 	}
 
-// ResolveIP with a host, return ip
-func ResolveIP(host string) (net.IP, error) {
+	return ipAddrs[rand.Intn(len(ipAddrs))], nil
+}
+
+// ResolveIPWithResolver same as ResolveIP, but with a resolver
+func ResolveIPWithResolver(host string, r Resolver) (net.IP, error) {
 	if node := DefaultHosts.Search(host); node != nil {
 		return node.Data.(net.IP), nil
 	}
 
-	if DefaultResolver != nil {
+	if r != nil {
 		if DisableIPv6 {
-			return DefaultResolver.ResolveIPv4(host)
+			return r.ResolveIPv4(host)
 		}
-		return DefaultResolver.ResolveIP(host)
+		return r.ResolveIP(host)
 	} else if DisableIPv6 {
 		return ResolveIPv4(host)
 	}
@@ -131,3 +133,8 @@ func ResolveIP(host string) (net.IP, error) {
 
 	return ipAddr.IP, nil
 }
+
+// ResolveIP with a host, return ip
+func ResolveIP(host string) (net.IP, error) {
+	return ResolveIPWithResolver(host, DefaultResolver)
+}

component/trie/domain.go

@@ -23,7 +23,7 @@ type DomainTrie struct {
 	root *Node
 }
 
-func validAndSplitDomain(domain string) ([]string, bool) {
+func ValidAndSplitDomain(domain string) ([]string, bool) {
 	if domain != "" && domain[len(domain)-1] == '.' {
 		return nil, false
 	}
@@ -54,7 +54,7 @@ func validAndSplitDomain(domain string) ([]string, bool) {
 // 4. .example.com
 // 5. +.example.com
 func (t *DomainTrie) Insert(domain string, data interface{}) error {
-	parts, valid := validAndSplitDomain(domain)
+	parts, valid := ValidAndSplitDomain(domain)
 	if !valid {
 		return ErrInvalidDomain
 	}
@@ -91,7 +91,7 @@ func (t *DomainTrie) insert(parts []string, data interface{}) {
 // 2. wildcard domain
 // 2. dot wildcard domain
 func (t *DomainTrie) Search(domain string) *Node {
-	parts, valid := validAndSplitDomain(domain)
+	parts, valid := ValidAndSplitDomain(domain)
 	if !valid || parts[0] == "" {
 		return nil
 	}
@@ -122,11 +122,7 @@ func (t *DomainTrie) search(node *Node, parts []string) *Node {
 		}
 	}
 
-	if c := node.getChild(dotWildcard); c != nil {
-		return c
-	}
-
-	return nil
+	return node.getChild(dotWildcard)
 }
 
 // New returns a new, empty Trie.

config/config.go

@@ -8,16 +8,17 @@ import (
 	"os"
 	"strings"
 
-	"github.com/Dreamacro/clash/adapters/outbound"
-	"github.com/Dreamacro/clash/adapters/outboundgroup"
-	"github.com/Dreamacro/clash/adapters/provider"
+	"github.com/Dreamacro/clash/adapter"
+	"github.com/Dreamacro/clash/adapter/outbound"
+	"github.com/Dreamacro/clash/adapter/outboundgroup"
+	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/component/auth"
 	"github.com/Dreamacro/clash/component/fakeip"
 	"github.com/Dreamacro/clash/component/trie"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/dns"
 	"github.com/Dreamacro/clash/log"
-	R "github.com/Dreamacro/clash/rules"
+	R "github.com/Dreamacro/clash/rule"
 	T "github.com/Dreamacro/clash/tunnel"
 
 	yaml "gopkg.in/yaml.v2"
@@ -64,6 +65,7 @@ type DNS struct {
 	DefaultNameserver []dns.NameServer `yaml:"default-nameserver"`
 	FakeIPRange       *fakeip.Pool
 	Hosts             *trie.DomainTrie
+	NameServerPolicy  map[string]dns.NameServer
 }
 
 // FallbackFilter config
@@ -106,6 +108,7 @@ type RawDNS struct {
 	FakeIPRange       string            `yaml:"fake-ip-range"`
 	FakeIPFilter      []string          `yaml:"fake-ip-filter"`
 	DefaultNameserver []string          `yaml:"default-nameserver"`
+	NameServerPolicy  map[string]string `yaml:"nameserver-policy"`
 }
 
 type RawFallbackFilter struct {
@@ -272,13 +275,13 @@ func parseProxies(cfg *RawConfig) (proxies map[string]C.Proxy, providersMap map[
 	groupsConfig := cfg.ProxyGroup
 	providersConfig := cfg.ProxyProvider
 
-	proxies["DIRECT"] = outbound.NewProxy(outbound.NewDirect())
-	proxies["REJECT"] = outbound.NewProxy(outbound.NewReject())
+	proxies["DIRECT"] = adapter.NewProxy(outbound.NewDirect())
+	proxies["REJECT"] = adapter.NewProxy(outbound.NewReject())
 	proxyList = append(proxyList, "DIRECT", "REJECT")
 
 	// parse proxy
 	for idx, mapping := range proxiesConfig {
-		proxy, err := outbound.ParseProxy(mapping)
+		proxy, err := adapter.ParseProxy(mapping)
 		if err != nil {
 			return nil, nil, fmt.Errorf("proxy %d: %w", idx, err)
 		}
@@ -337,7 +340,7 @@ func parseProxies(cfg *RawConfig) (proxies map[string]C.Proxy, providersMap map[
 			return nil, nil, fmt.Errorf("proxy group %s: the duplicate name", groupName)
 		}
 
-		proxies[groupName] = outbound.NewProxy(group)
+		proxies[groupName] = adapter.NewProxy(group)
 	}
 
 	// initial compatible provider
@@ -366,7 +369,7 @@ func parseProxies(cfg *RawConfig) (proxies map[string]C.Proxy, providersMap map[
 		},
 		[]provider.ProxyProvider{pd},
 	)
-	proxies["GLOBAL"] = outbound.NewProxy(global)
+	proxies["GLOBAL"] = adapter.NewProxy(global)
 	return proxies, providersMap, nil
 }
 
@@ -500,6 +503,23 @@ func parseNameServer(servers []string) ([]dns.NameServer, error) {
 	return nameservers, nil
 }
 
+func parseNameServerPolicy(nsPolicy map[string]string) (map[string]dns.NameServer, error) {
+	policy := map[string]dns.NameServer{}
+
+	for domain, server := range nsPolicy {
+		nameservers, err := parseNameServer([]string{server})
+		if err != nil {
+			return nil, err
+		}
+		if _, valid := trie.ValidAndSplitDomain(domain); !valid {
+			return nil, fmt.Errorf("DNS ResoverRule invalid domain: %s", domain)
+		}
+		policy[domain] = nameservers[0]
+	}
+
+	return policy, nil
+}
+
 func parseFallbackIPCIDR(ips []string) ([]*net.IPNet, error) {
 	ipNets := []*net.IPNet{}
 
@@ -537,6 +557,10 @@ func parseDNS(cfg RawDNS, hosts *trie.DomainTrie) (*DNS, error) {
 		return nil, err
 	}
 
+	if dnsCfg.NameServerPolicy, err = parseNameServerPolicy(cfg.NameServerPolicy); err != nil {
+		return nil, err
+	}
+
 	if len(cfg.DefaultNameserver) == 0 {
 		return nil, errors.New("default nameserver should have at least one nameserver")
 	}

config/initial.go

@@ -66,7 +66,7 @@ func Init(dir string) error {
 		if err != nil {
 			return fmt.Errorf("can't create file %s: %s", C.Path.Config(), err.Error())
 		}
-		f.Write([]byte(`port: 7890`))
+		f.Write([]byte(`mixed-port: 7890`))
 		f.Close()
 	}
 

config/utils.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/Dreamacro/clash/adapters/outboundgroup"
+	"github.com/Dreamacro/clash/adapter/outboundgroup"
 	"github.com/Dreamacro/clash/common/structure"
 )
 

constant/adapters.go

@@ -27,6 +27,10 @@ const (
 	LoadBalance
 )
 
+const (
+	DefaultTCPTimeout = 5 * time.Second
+)
+
 type Connection interface {
 	Chains() Chain
 	AppendToChains(adapter ProxyAdapter)
@@ -69,8 +73,21 @@ type PacketConn interface {
 type ProxyAdapter interface {
 	Name() string
 	Type() AdapterType
+
+	// StreamConn wraps a protocol around net.Conn with Metadata.
+	//
+	// Examples:
+	//	conn, _ := net.Dial("tcp", "host:port")
+	//	conn, _ = adapter.StreamConn(conn, metadata)
+	//
+	// It returns a C.Conn with protocol which start with
+	// a new session (if any)
 	StreamConn(c net.Conn, metadata *Metadata) (net.Conn, error)
+
+	// DialContext return a C.Conn with protocol which
+	// contains multiplexing-related reuse logic (if any)
 	DialContext(ctx context.Context, metadata *Metadata) (Conn, error)
+
 	DialUDP(metadata *Metadata) (PacketConn, error)
 	SupportUDP() bool
 	MarshalJSON() ([]byte, error)

context/http.go

@@ -1,47 +0,0 @@
-package context
-
-import (
-	"net"
-	"net/http"
-
-	C "github.com/Dreamacro/clash/constant"
-
-	"github.com/gofrs/uuid"
-)
-
-type HTTPContext struct {
-	id       uuid.UUID
-	metadata *C.Metadata
-	conn     net.Conn
-	req      *http.Request
-}
-
-func NewHTTPContext(conn net.Conn, req *http.Request, metadata *C.Metadata) *HTTPContext {
-	id, _ := uuid.NewV4()
-	return &HTTPContext{
-		id:       id,
-		metadata: metadata,
-		conn:     conn,
-		req:      req,
-	}
-}
-
-// ID implement C.ConnContext ID
-func (hc *HTTPContext) ID() uuid.UUID {
-	return hc.id
-}
-
-// Metadata implement C.ConnContext Metadata
-func (hc *HTTPContext) Metadata() *C.Metadata {
-	return hc.metadata
-}
-
-// Conn implement C.ConnContext Conn
-func (hc *HTTPContext) Conn() net.Conn {
-	return hc.conn
-}
-
-// Request return the http request struct
-func (hc *HTTPContext) Request() *http.Request {
-	return hc.req
-}

dns/client.go

@@ -7,6 +7,7 @@ import (
 	"strings"
 
 	"github.com/Dreamacro/clash/component/dialer"
+	"github.com/Dreamacro/clash/component/resolver"
 
 	D "github.com/miekg/dns"
 )
@@ -28,8 +29,7 @@ func (c *client) ExchangeContext(ctx context.Context, m *D.Msg) (msg *D.Msg, err
 		// a default ip dns
 		ip = net.ParseIP(c.host)
 	} else {
-		var err error
-		if ip, err = c.r.ResolveIP(c.host); err != nil {
+		if ip, err = resolver.ResolveIPWithResolver(c.host, c.r); err != nil {
 			return nil, fmt.Errorf("use default dns resolve failed: %w", err)
 		}
 	}

dns/doh.go

@@ -3,12 +3,12 @@ package dns
 import (
 	"bytes"
 	"context"
-	"crypto/tls"
 	"io/ioutil"
 	"net"
 	"net/http"
 
 	"github.com/Dreamacro/clash/component/dialer"
+	"github.com/Dreamacro/clash/component/resolver"
 
 	D "github.com/miekg/dns"
 )
@@ -75,7 +75,6 @@ func newDoHClient(url string, r *Resolver) *dohClient {
 	return &dohClient{
 		url: url,
 		transport: &http.Transport{
-			TLSClientConfig:   &tls.Config{ClientSessionCache: globalSessionCache},
 			ForceAttemptHTTP2: true,
 			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
 				host, port, err := net.SplitHostPort(addr)
@@ -83,12 +82,12 @@ func newDoHClient(url string, r *Resolver) *dohClient {
 					return nil, err
 				}
 
-				ip, err := r.ResolveIPv4(host)
+				ip, err := resolver.ResolveIPWithResolver(host, r)
 				if err != nil {
 					return nil, err
 				}
 
-				return dialer.DialContext(ctx, "tcp4", net.JoinHostPort(ip.String(), port))
+				return dialer.DialContext(ctx, "tcp", net.JoinHostPort(ip.String(), port))
 			},
 		},
 	}

dns/resolver.go

@@ -2,7 +2,6 @@ package dns
 
 import (
 	"context"
-	"crypto/tls"
 	"errors"
 	"fmt"
 	"math/rand"
@@ -20,10 +19,6 @@ import (
 	"golang.org/x/sync/singleflight"
 )
 
-var (
-	globalSessionCache = tls.NewLRUClientSessionCache(64)
-)
-
 type dnsClient interface {
 	Exchange(m *D.Msg) (msg *D.Msg, err error)
 	ExchangeContext(ctx context.Context, m *D.Msg) (msg *D.Msg, err error)
@@ -43,6 +38,7 @@ type Resolver struct {
 	fallbackIPFilters     []fallbackIPFilter
 	group                 singleflight.Group
 	lruCache              *cache.LruCache
+	policy                *trie.DomainTrie
 }
 
 // ResolveIP request with TypeA and TypeAAAA, priority return TypeA
@@ -131,6 +127,9 @@ func (r *Resolver) exchangeWithoutCache(m *D.Msg) (msg *D.Msg, err error) {
 			return r.ipExchange(m)
 		}
 
+		if matched := r.matchPolicy(m); len(matched) != 0 {
+			return r.batchExchange(matched, m)
+		}
 		return r.batchExchange(r.main, m)
 	})
 
@@ -145,7 +144,7 @@ func (r *Resolver) exchangeWithoutCache(m *D.Msg) (msg *D.Msg, err error) {
 }
 
 func (r *Resolver) batchExchange(clients []dnsClient, m *D.Msg) (msg *D.Msg, err error) {
-	fast, ctx := picker.WithTimeout(context.Background(), time.Second*5)
+	fast, ctx := picker.WithTimeout(context.Background(), resolver.DefaultDNSTimeout)
 	for _, client := range clients {
 		r := client
 		fast.Go(func() (interface{}, error) {
@@ -172,6 +171,24 @@ func (r *Resolver) batchExchange(clients []dnsClient, m *D.Msg) (msg *D.Msg, err
 	return
 }
 
+func (r *Resolver) matchPolicy(m *D.Msg) []dnsClient {
+	if r.policy == nil {
+		return nil
+	}
+
+	domain := r.msgToDomain(m)
+	if domain == "" {
+		return nil
+	}
+
+	record := r.policy.Search(domain)
+	if record == nil {
+		return nil
+	}
+
+	return record.Data.([]dnsClient)
+}
+
 func (r *Resolver) shouldOnlyQueryFallback(m *D.Msg) bool {
 	if r.fallback == nil || len(r.fallbackDomainFilters) == 0 {
 		return false
@@ -194,6 +211,11 @@ func (r *Resolver) shouldOnlyQueryFallback(m *D.Msg) bool {
 
 func (r *Resolver) ipExchange(m *D.Msg) (msg *D.Msg, err error) {
 
+	if matched := r.matchPolicy(m); len(matched) != 0 {
+		res := <-r.asyncExchange(matched, m)
+		return res.Msg, res.Error
+	}
+
 	onlyFallback := r.shouldOnlyQueryFallback(m)
 
 	if onlyFallback {
@@ -293,6 +315,7 @@ type Config struct {
 	FallbackFilter FallbackFilter
 	Pool           *fakeip.Pool
 	Hosts          *trie.DomainTrie
+	Policy         map[string]NameServer
 }
 
 func NewResolver(config Config) *Resolver {
@@ -312,6 +335,13 @@ func NewResolver(config Config) *Resolver {
 		r.fallback = transform(config.Fallback, defaultResolver)
 	}
 
+	if len(config.Policy) != 0 {
+		r.policy = trie.New()
+		for domain, nameserver := range config.Policy {
+			r.policy.Insert(domain, transform([]NameServer{nameserver}, defaultResolver))
+		}
+	}
+
 	fallbackIPFilters := []fallbackIPFilter{}
 	if config.FallbackFilter.GeoIP {
 		fallbackIPFilters = append(fallbackIPFilters, &geoipFilter{})

dns/server.go

@@ -30,6 +30,7 @@ func (s *Server) ServeDNS(w D.ResponseWriter, r *D.Msg) {
 		D.HandleFailed(w, r)
 		return
 	}
+	msg.Compress = true
 	w.WriteMsg(msg)
 }
 

dns/util.go

@@ -127,7 +127,6 @@ func transform(servers []NameServer, resolver *Resolver) []dnsClient {
 			Client: &D.Client{
 				Net: s.Net,
 				TLSConfig: &tls.Config{
-					ClientSessionCache: globalSessionCache,
 					// alpn identifier, see https://tools.ietf.org/html/draft-hoffman-dprive-dns-tls-alpn-00#page-6
 					NextProtos: []string{"dns"},
 					ServerName: host,

go.mod

@@ -3,20 +3,20 @@ module github.com/Dreamacro/clash
 go 1.16
 
 require (
-	github.com/Dreamacro/go-shadowsocks2 v0.1.6
-	github.com/go-chi/chi v4.1.2+incompatible
-	github.com/go-chi/cors v1.1.1
+	github.com/Dreamacro/go-shadowsocks2 v0.1.7
+	github.com/go-chi/chi/v5 v5.0.3
+	github.com/go-chi/cors v1.2.0
 	github.com/go-chi/render v1.0.1
 	github.com/gofrs/uuid v4.0.0+incompatible
 	github.com/gorilla/websocket v1.4.2
-	github.com/miekg/dns v1.1.38
-	github.com/oschwald/geoip2-golang v1.4.0
-	github.com/sirupsen/logrus v1.8.0
+	github.com/miekg/dns v1.1.43
+	github.com/oschwald/geoip2-golang v1.5.0
+	github.com/sirupsen/logrus v1.8.1
 	github.com/stretchr/testify v1.7.0
-	go.uber.org/atomic v1.7.0
-	golang.org/x/crypto v0.0.0-20210218145215-b8e89b74b9df
-	golang.org/x/net v0.0.0-20210119194325-5f4716e94777
-	golang.org/x/sync v0.0.0-20201207232520-09787c993a3a
-	golang.org/x/sys v0.0.0-20210218155724-8ebf48af031b
+	go.uber.org/atomic v1.8.0
+	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e
+	golang.org/x/net v0.0.0-20210614182718-04defd469f4e
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
+	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c
 	gopkg.in/yaml.v2 v2.4.0
 )

go.sum

@@ -1,71 +1,59 @@
-github.com/Dreamacro/go-shadowsocks2 v0.1.6 h1:PysSf9sLT3Qn8jhlin5v7Rk68gOQG4K5BZFY1nxLGxI=
-github.com/Dreamacro/go-shadowsocks2 v0.1.6/go.mod h1:LSXCjyHesPY3pLjhwff1mQX72ItcBT/N2xNC685cYeU=
+github.com/Dreamacro/go-shadowsocks2 v0.1.7 h1:8CtbE1HoPPMfrQZGXmlluq6dO2lL31W6WRRE8fabc4Q=
+github.com/Dreamacro/go-shadowsocks2 v0.1.7/go.mod h1:8p5G4cAj5ZlXwUR+Ww63gfSikr8kvw8uw3TDwLAJpUc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/go-chi/chi v4.1.2+incompatible h1:fGFk2Gmi/YKXk0OmGfBh0WgmN3XB8lVnEyNz34tQRec=
-github.com/go-chi/chi v4.1.2+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxmMeXJVKy9tTv1XzQ=
-github.com/go-chi/cors v1.1.1 h1:eHuqxsIw89iXcWnWUN8R72JMibABJTN/4IOYI5WERvw=
-github.com/go-chi/cors v1.1.1/go.mod h1:K2Yje0VW/SJzxiyMYu6iPQYa7hMjQX2i/F491VChg1I=
+github.com/go-chi/chi/v5 v5.0.3 h1:khYQBdPivkYG1s1TAzDQG1f6eX4kD2TItYVZexL5rS4=
+github.com/go-chi/chi/v5 v5.0.3/go.mod h1:DslCQbL2OYiznFReuXYUmQ2hGd1aDpCnlMNITLSKoi8=
+github.com/go-chi/cors v1.2.0 h1:tV1g1XENQ8ku4Bq3K9ub2AtgG+p16SmzeMSGTwrOKdE=
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 github.com/go-chi/render v1.0.1 h1:4/5tis2cKaNdnv9zFLfXzcquC9HbeZgCnxGnKrltBS8=
 github.com/go-chi/render v1.0.1/go.mod h1:pq4Rr7HbnsdaeHagklXub+p6Wd16Af5l9koip1OvJns=
 github.com/gofrs/uuid v4.0.0+incompatible h1:1SD/1F5pU8p29ybwgQSwpQk+mwdRrXCYuPhW6m+TnJw=
 github.com/gofrs/uuid v4.0.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
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-github.com/oschwald/geoip2-golang v1.4.0/go.mod h1:8QwxJvRImBH+Zl6Aa6MaIcs5YdlZSTKtzmPGzQqi9ng=
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+github.com/oschwald/maxminddb-golang v1.8.0/go.mod h1:RXZtst0N6+FY/3qCNmZMBApR19cdQj43/NM9VkrNAis=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/sirupsen/logrus v1.8.0 h1:nfhvjKcUMhBMVqbKHJlk5RPrrfYr/NMo3692g0dwfWU=
-github.com/sirupsen/logrus v1.8.0/go.mod h1:4GuYW9TZmE769R5STWrRakJc4UqQ3+QQ95fyz7ENv1A=
+github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE=
+github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
-go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20210218145215-b8e89b74b9df h1:y7QZzfUiTwWam+xBn29Ulb8CBwVN5UdzmMDavl9Whlw=
-golang.org/x/crypto v0.0.0-20210218145215-b8e89b74b9df/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
-golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
-golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20210119194325-5f4716e94777 h1:003p0dJM77cxMSyCPFphvZf/Y5/NXf5fzg6ufd1/Oew=
-golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20201207232520-09787c993a3a h1:DcqTD9SDLc+1P/r1EmRBwnVsrOwW+kk2vWf9n+1sGhs=
-golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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-golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+go.uber.org/atomic v1.8.0 h1:CUhrE4N1rqSE6FM9ecihEjRkLQu8cDfgDyoOs83mEY4=
+go.uber.org/atomic v1.8.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
+golang.org/x/crypto v0.0.0-20210317152858-513c2a44f670/go.mod h1:T9bdIzuCu7OtxOm1hfPfRQxPLYneinmdGuTeoZ9dtd4=
+golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e h1:gsTQYXdTw2Gq7RBsWvlQ91b+aEQ6bXFUngBGuR8sPpI=
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 golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191224085550-c709ea063b76/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191216052735-49a3e744a425/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
-golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=

hub/executor/executor.go

@@ -6,9 +6,9 @@ import (
 	"os"
 	"sync"
 
-	"github.com/Dreamacro/clash/adapters/outbound"
-	"github.com/Dreamacro/clash/adapters/outboundgroup"
-	"github.com/Dreamacro/clash/adapters/provider"
+	"github.com/Dreamacro/clash/adapter"
+	"github.com/Dreamacro/clash/adapter/outboundgroup"
+	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/component/auth"
 	"github.com/Dreamacro/clash/component/dialer"
 	"github.com/Dreamacro/clash/component/profile"
@@ -18,9 +18,9 @@ import (
 	"github.com/Dreamacro/clash/config"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/dns"
+	P "github.com/Dreamacro/clash/listener"
+	authStore "github.com/Dreamacro/clash/listener/auth"
 	"github.com/Dreamacro/clash/log"
-	P "github.com/Dreamacro/clash/proxy"
-	authStore "github.com/Dreamacro/clash/proxy/auth"
 	"github.com/Dreamacro/clash/tunnel"
 )
 
@@ -128,6 +128,7 @@ func updateDNS(c *config.DNS) {
 			Domain: c.FallbackFilter.Domain,
 		},
 		Default: c.DefaultNameserver,
+		Policy:  c.NameServerPolicy,
 	}
 
 	r := dns.NewResolver(cfg)
@@ -186,23 +187,26 @@ func updateGeneral(general *config.General, force bool) {
 	bindAddress := general.BindAddress
 	P.SetBindAddress(bindAddress)
 
-	if err := P.ReCreateHTTP(general.Port); err != nil {
+	tcpIn := tunnel.TCPIn()
+	udpIn := tunnel.UDPIn()
+
+	if err := P.ReCreateHTTP(general.Port, tcpIn); err != nil {
 		log.Errorln("Start HTTP server error: %s", err.Error())
 	}
 
-	if err := P.ReCreateSocks(general.SocksPort); err != nil {
+	if err := P.ReCreateSocks(general.SocksPort, tcpIn, udpIn); err != nil {
 		log.Errorln("Start SOCKS5 server error: %s", err.Error())
 	}
 
-	if err := P.ReCreateRedir(general.RedirPort); err != nil {
+	if err := P.ReCreateRedir(general.RedirPort, tcpIn, udpIn); err != nil {
 		log.Errorln("Start Redir server error: %s", err.Error())
 	}
 
-	if err := P.ReCreateTProxy(general.TProxyPort); err != nil {
+	if err := P.ReCreateTProxy(general.TProxyPort, tcpIn, udpIn); err != nil {
 		log.Errorln("Start TProxy server error: %s", err.Error())
 	}
 
-	if err := P.ReCreateMixed(general.MixedPort); err != nil {
+	if err := P.ReCreateMixed(general.MixedPort, tcpIn, udpIn); err != nil {
 		log.Errorln("Start Mixed(http and socks5) server error: %s", err.Error())
 	}
 }
@@ -231,7 +235,7 @@ func patchSelectGroup(proxies map[string]C.Proxy) {
 	}
 
 	for name, proxy := range proxies {
-		outbound, ok := proxy.(*outbound.Proxy)
+		outbound, ok := proxy.(*adapter.Proxy)
 		if !ok {
 			continue
 		}

hub/route/common.go

@@ -4,7 +4,7 @@ import (
 	"net/http"
 	"net/url"
 
-	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/v5"
 )
 
 // When name is composed of a partial escape string, Golang does not unescape it

hub/route/configs.go

@@ -6,12 +6,13 @@ import (
 
 	"github.com/Dreamacro/clash/component/resolver"
 	"github.com/Dreamacro/clash/config"
+	"github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/hub/executor"
+	P "github.com/Dreamacro/clash/listener"
 	"github.com/Dreamacro/clash/log"
-	P "github.com/Dreamacro/clash/proxy"
 	"github.com/Dreamacro/clash/tunnel"
 
-	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/render"
 )
 
@@ -66,11 +67,15 @@ func patchConfigs(w http.ResponseWriter, r *http.Request) {
 	}
 
 	ports := P.GetPorts()
-	P.ReCreateHTTP(pointerOrDefault(general.Port, ports.Port))
-	P.ReCreateSocks(pointerOrDefault(general.SocksPort, ports.SocksPort))
-	P.ReCreateRedir(pointerOrDefault(general.RedirPort, ports.RedirPort))
-	P.ReCreateTProxy(pointerOrDefault(general.TProxyPort, ports.TProxyPort))
-	P.ReCreateMixed(pointerOrDefault(general.MixedPort, ports.MixedPort))
+
+	tcpIn := tunnel.TCPIn()
+	udpIn := tunnel.UDPIn()
+
+	P.ReCreateHTTP(pointerOrDefault(general.Port, ports.Port), tcpIn)
+	P.ReCreateSocks(pointerOrDefault(general.SocksPort, ports.SocksPort), tcpIn, udpIn)
+	P.ReCreateRedir(pointerOrDefault(general.RedirPort, ports.RedirPort), tcpIn, udpIn)
+	P.ReCreateTProxy(pointerOrDefault(general.TProxyPort, ports.TProxyPort), tcpIn, udpIn)
+	P.ReCreateMixed(pointerOrDefault(general.MixedPort, ports.MixedPort), tcpIn, udpIn)
 
 	if general.Mode != nil {
 		tunnel.SetMode(*general.Mode)
@@ -112,6 +117,9 @@ func updateConfigs(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 	} else {
+		if req.Path == "" {
+			req.Path = constant.Path.Config()
+		}
 		if !filepath.IsAbs(req.Path) {
 			render.Status(r, http.StatusBadRequest)
 			render.JSON(w, r, newError("path is not a absolute path"))

hub/route/connections.go

@@ -8,10 +8,10 @@ import (
 	"time"
 
 	"github.com/Dreamacro/clash/tunnel/statistic"
-	"github.com/gorilla/websocket"
 
-	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/render"
+	"github.com/gorilla/websocket"
 )
 
 func connectionRouter() http.Handler {

hub/route/provider.go

@@ -4,10 +4,10 @@ import (
 	"context"
 	"net/http"
 
-	"github.com/Dreamacro/clash/adapters/provider"
+	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/tunnel"
 
-	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/render"
 )
 

hub/route/proxies.go

@@ -7,13 +7,13 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/Dreamacro/clash/adapters/outbound"
-	"github.com/Dreamacro/clash/adapters/outboundgroup"
+	"github.com/Dreamacro/clash/adapter"
+	"github.com/Dreamacro/clash/adapter/outboundgroup"
 	"github.com/Dreamacro/clash/component/profile/cachefile"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/tunnel"
 
-	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/render"
 )
 
@@ -78,7 +78,7 @@ func updateProxy(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	proxy := r.Context().Value(CtxKeyProxy).(*outbound.Proxy)
+	proxy := r.Context().Value(CtxKeyProxy).(*adapter.Proxy)
 	selector, ok := proxy.ProxyAdapter.(*outboundgroup.Selector)
 	if !ok {
 		render.Status(r, http.StatusBadRequest)

hub/route/rules.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/Dreamacro/clash/tunnel"
 
-	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/render"
 )
 

hub/route/server.go

@@ -11,7 +11,7 @@ import (
 	"github.com/Dreamacro/clash/log"
 	"github.com/Dreamacro/clash/tunnel/statistic"
 
-	"github.com/go-chi/chi"
+	"github.com/go-chi/chi/v5"
 	"github.com/go-chi/cors"
 	"github.com/go-chi/render"
 	"github.com/gorilla/websocket"

listener/http/client.go

@@ -0,0 +1,39 @@
+package http
+
+import (
+	"context"
+	"errors"
+	"net"
+	"net/http"
+	"time"
+
+	"github.com/Dreamacro/clash/adapter/inbound"
+	C "github.com/Dreamacro/clash/constant"
+)
+
+func newClient(source net.Addr, in chan<- C.ConnContext) *http.Client {
+	return &http.Client{
+		Transport: &http.Transport{
+			// from http.DefaultTransport
+			MaxIdleConns:          100,
+			IdleConnTimeout:       90 * time.Second,
+			TLSHandshakeTimeout:   10 * time.Second,
+			ResponseHeaderTimeout: 10 * time.Second,
+			ExpectContinueTimeout: 1 * time.Second,
+			DialContext: func(context context.Context, network, address string) (net.Conn, error) {
+				if network != "tcp" && network != "tcp4" && network != "tcp6" {
+					return nil, errors.New("unsupported network " + network)
+				}
+
+				left, right := net.Pipe()
+
+				in <- inbound.NewHTTP(address, source, right)
+
+				return left, nil
+			},
+		},
+		CheckRedirect: func(req *http.Request, via []*http.Request) error {
+			return http.ErrUseLastResponse
+		},
+	}
+}

listener/http/hack.go

@@ -0,0 +1,10 @@
+package http
+
+import (
+	"bufio"
+	"net/http"
+	_ "unsafe"
+)
+
+//go:linkname ReadRequest net/http.readRequest
+func ReadRequest(b *bufio.Reader, deleteHostHeader bool) (req *http.Request, err error)

listener/http/proxy.go

@@ -0,0 +1,132 @@
+package http
+
+import (
+	"net"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/Dreamacro/clash/adapter/inbound"
+	"github.com/Dreamacro/clash/common/cache"
+	N "github.com/Dreamacro/clash/common/net"
+	C "github.com/Dreamacro/clash/constant"
+	authStore "github.com/Dreamacro/clash/listener/auth"
+	"github.com/Dreamacro/clash/log"
+)
+
+func HandleConn(c net.Conn, in chan<- C.ConnContext, cache *cache.Cache) {
+	client := newClient(c.RemoteAddr(), in)
+	defer client.CloseIdleConnections()
+
+	conn := N.NewBufferedConn(c)
+
+	keepAlive := true
+	trusted := cache == nil // disable authenticate if cache is nil
+
+	for keepAlive {
+		request, err := ReadRequest(conn.Reader(), false)
+		if err != nil {
+			break
+		}
+
+		request.RemoteAddr = conn.RemoteAddr().String()
+
+		keepAlive = strings.TrimSpace(strings.ToLower(request.Header.Get("Proxy-Connection"))) == "keep-alive"
+
+		var resp *http.Response
+
+		if !trusted {
+			resp = authenticate(request, cache)
+
+			trusted = resp == nil
+		}
+
+		if trusted {
+			if request.Method == http.MethodConnect {
+				resp = responseWith(200)
+				resp.Status = "Connection established"
+
+				if resp.Write(conn) != nil {
+					break // close connection
+				}
+
+				in <- inbound.NewHTTPS(request, conn)
+
+				return // hijack connection
+			}
+
+			host := request.Header.Get("Host")
+			if host != "" {
+				request.Host = host
+			}
+
+			request.RequestURI = ""
+
+			RemoveHopByHopHeaders(request.Header)
+			RemoveExtraHTTPHostPort(request)
+
+			if request.URL.Scheme == "" || request.URL.Host == "" {
+				resp = responseWith(http.StatusBadRequest)
+			} else {
+				resp, err = client.Do(request)
+				if err != nil {
+					resp = responseWith(http.StatusBadGateway)
+				}
+			}
+		}
+
+		RemoveHopByHopHeaders(resp.Header)
+
+		if keepAlive {
+			resp.Header.Set("Proxy-Connection", "keep-alive")
+			resp.Header.Set("Connection", "keep-alive")
+			resp.Header.Set("Keep-Alive", "timeout=4")
+		}
+
+		resp.Close = !keepAlive
+
+		err = resp.Write(conn)
+		if err != nil {
+			break // close connection
+		}
+	}
+
+	conn.Close()
+}
+
+func authenticate(request *http.Request, cache *cache.Cache) *http.Response {
+	authenticator := authStore.Authenticator()
+	if authenticator != nil {
+		credential := ParseBasicProxyAuthorization(request)
+		if credential == "" {
+			resp := responseWith(http.StatusProxyAuthRequired)
+			resp.Header.Set("Proxy-Authenticate", "Basic")
+			return resp
+		}
+
+		var authed interface{}
+		if authed = cache.Get(credential); authed == nil {
+			user, pass, err := DecodeBasicProxyAuthorization(credential)
+			authed = err == nil && authenticator.Verify(user, pass)
+			cache.Put(credential, authed, time.Minute)
+		}
+		if !authed.(bool) {
+			log.Infoln("Auth failed from %s", request.RemoteAddr)
+
+			return responseWith(http.StatusForbidden)
+		}
+	}
+
+	return nil
+}
+
+func responseWith(statusCode int) *http.Response {
+	return &http.Response{
+		StatusCode: statusCode,
+		Status:     http.StatusText(statusCode),
+		Proto:      "HTTP/1.1",
+		ProtoMajor: 1,
+		ProtoMinor: 1,
+		Header:     http.Header{},
+	}
+}

listener/http/server.go

@@ -0,0 +1,59 @@
+package http
+
+import (
+	"net"
+	"time"
+
+	"github.com/Dreamacro/clash/common/cache"
+	C "github.com/Dreamacro/clash/constant"
+)
+
+type Listener struct {
+	listener net.Listener
+	address  string
+	closed   bool
+}
+
+func New(addr string, in chan<- C.ConnContext) (*Listener, error) {
+	return NewWithAuthenticate(addr, in, true)
+}
+
+func NewWithAuthenticate(addr string, in chan<- C.ConnContext, authenticate bool) (*Listener, error) {
+	l, err := net.Listen("tcp", addr)
+	if err != nil {
+		return nil, err
+	}
+
+	var c *cache.Cache
+	if authenticate {
+		c = cache.New(time.Second * 30)
+	}
+
+	hl := &Listener{
+		listener: l,
+		address:  addr,
+	}
+	go func() {
+		for {
+			conn, err := hl.listener.Accept()
+			if err != nil {
+				if hl.closed {
+					break
+				}
+				continue
+			}
+			go HandleConn(conn, in, c)
+		}
+	}()
+
+	return hl, nil
+}
+
+func (l *Listener) Close() {
+	l.closed = true
+	l.listener.Close()
+}
+
+func (l *Listener) Address() string {
+	return l.address
+}

listener/http/utils.go

@@ -0,0 +1,74 @@
+package http
+
+import (
+	"encoding/base64"
+	"errors"
+	"net"
+	"net/http"
+	"strings"
+)
+
+// RemoveHopByHopHeaders remove hop-by-hop header
+func RemoveHopByHopHeaders(header http.Header) {
+	// Strip hop-by-hop header based on RFC:
+	// http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html#sec13.5.1
+	// https://www.mnot.net/blog/2011/07/11/what_proxies_must_do
+
+	header.Del("Proxy-Connection")
+	header.Del("Proxy-Authenticate")
+	header.Del("Proxy-Authorization")
+	header.Del("TE")
+	header.Del("Trailers")
+	header.Del("Transfer-Encoding")
+	header.Del("Upgrade")
+
+	connections := header.Get("Connection")
+	header.Del("Connection")
+	if len(connections) == 0 {
+		return
+	}
+	for _, h := range strings.Split(connections, ",") {
+		header.Del(strings.TrimSpace(h))
+	}
+}
+
+// RemoveExtraHTTPHostPort remove extra host port (example.com:80 --> example.com)
+// It resolves the behavior of some HTTP servers that do not handle host:80 (e.g. baidu.com)
+func RemoveExtraHTTPHostPort(req *http.Request) {
+	host := req.Host
+	if host == "" {
+		host = req.URL.Host
+	}
+
+	if pHost, port, err := net.SplitHostPort(host); err == nil && port == "80" {
+		host = pHost
+	}
+
+	req.Host = host
+	req.URL.Host = host
+}
+
+// ParseBasicProxyAuthorization parse header Proxy-Authorization and return base64-encoded credential
+func ParseBasicProxyAuthorization(request *http.Request) string {
+	value := request.Header.Get("Proxy-Authorization")
+	if !strings.HasPrefix(value, "Basic ") {
+		return ""
+	}
+
+	return value[6:] // value[len("Basic "):]
+}
+
+// DecodeBasicProxyAuthorization decode base64-encoded credential
+func DecodeBasicProxyAuthorization(credential string) (string, string, error) {
+	plain, err := base64.StdEncoding.DecodeString(credential)
+	if err != nil {
+		return "", "", err
+	}
+
+	login := strings.Split(string(plain), ":")
+	if len(login) != 2 {
+		return "", "", errors.New("invalid login")
+	}
+
+	return login[0], login[1], nil
+}

listener/listener.go

@@ -6,26 +6,29 @@ import (
 	"strconv"
 	"sync"
 
+	"github.com/Dreamacro/clash/adapter/inbound"
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/listener/http"
+	"github.com/Dreamacro/clash/listener/mixed"
+	"github.com/Dreamacro/clash/listener/redir"
+	"github.com/Dreamacro/clash/listener/socks"
+	"github.com/Dreamacro/clash/listener/tproxy"
 	"github.com/Dreamacro/clash/log"
-	"github.com/Dreamacro/clash/proxy/http"
-	"github.com/Dreamacro/clash/proxy/mixed"
-	"github.com/Dreamacro/clash/proxy/redir"
-	"github.com/Dreamacro/clash/proxy/socks"
 )
 
 var (
 	allowLan    = false
 	bindAddress = "*"
 
-	socksListener     *socks.SockListener
-	socksUDPListener  *socks.SockUDPListener
-	httpListener      *http.HttpListener
-	redirListener     *redir.RedirListener
-	redirUDPListener  *redir.RedirUDPListener
-	tproxyListener    *redir.TProxyListener
-	tproxyUDPListener *redir.RedirUDPListener
-	mixedListener     *mixed.MixedListener
-	mixedUDPLister    *socks.SockUDPListener
+	socksListener     *socks.Listener
+	socksUDPListener  *socks.UDPListener
+	httpListener      *http.Listener
+	redirListener     *redir.Listener
+	redirUDPListener  *tproxy.UDPListener
+	tproxyListener    *tproxy.Listener
+	tproxyUDPListener *tproxy.UDPListener
+	mixedListener     *mixed.Listener
+	mixedUDPLister    *socks.UDPListener
 
 	// lock for recreate function
 	socksMux  sync.Mutex
@@ -59,7 +62,7 @@ func SetBindAddress(host string) {
 	bindAddress = host
 }
 
-func ReCreateHTTP(port int) error {
+func ReCreateHTTP(port int, tcpIn chan<- C.ConnContext) error {
 	httpMux.Lock()
 	defer httpMux.Unlock()
 
@@ -78,15 +81,16 @@ func ReCreateHTTP(port int) error {
 	}
 
 	var err error
-	httpListener, err = http.NewHttpProxy(addr)
+	httpListener, err = http.New(addr, tcpIn)
 	if err != nil {
 		return err
 	}
 
+	log.Infoln("HTTP proxy listening at: %s", httpListener.Address())
 	return nil
 }
 
-func ReCreateSocks(port int) error {
+func ReCreateSocks(port int, tcpIn chan<- C.ConnContext, udpIn chan<- *inbound.PacketAdapter) error {
 	socksMux.Lock()
 	defer socksMux.Unlock()
 
@@ -121,12 +125,12 @@ func ReCreateSocks(port int) error {
 		return nil
 	}
 
-	tcpListener, err := socks.NewSocksProxy(addr)
+	tcpListener, err := socks.New(addr, tcpIn)
 	if err != nil {
 		return err
 	}
 
-	udpListener, err := socks.NewSocksUDPProxy(addr)
+	udpListener, err := socks.NewUDP(addr, udpIn)
 	if err != nil {
 		tcpListener.Close()
 		return err
@@ -135,10 +139,11 @@ func ReCreateSocks(port int) error {
 	socksListener = tcpListener
 	socksUDPListener = udpListener
 
+	log.Infoln("SOCKS5 proxy listening at: %s", socksListener.Address())
 	return nil
 }
 
-func ReCreateRedir(port int) error {
+func ReCreateRedir(port int, tcpIn chan<- C.ConnContext, udpIn chan<- *inbound.PacketAdapter) error {
 	redirMux.Lock()
 	defer redirMux.Unlock()
 
@@ -165,20 +170,21 @@ func ReCreateRedir(port int) error {
 	}
 
 	var err error
-	redirListener, err = redir.NewRedirProxy(addr)
+	redirListener, err = redir.New(addr, tcpIn)
 	if err != nil {
 		return err
 	}
 
-	redirUDPListener, err = redir.NewRedirUDPProxy(addr)
+	redirUDPListener, err = tproxy.NewUDP(addr, udpIn)
 	if err != nil {
 		log.Warnln("Failed to start Redir UDP Listener: %s", err)
 	}
 
+	log.Infoln("Redirect proxy listening at: %s", redirListener.Address())
 	return nil
 }
 
-func ReCreateTProxy(port int) error {
+func ReCreateTProxy(port int, tcpIn chan<- C.ConnContext, udpIn chan<- *inbound.PacketAdapter) error {
 	tproxyMux.Lock()
 	defer tproxyMux.Unlock()
 
@@ -205,20 +211,21 @@ func ReCreateTProxy(port int) error {
 	}
 
 	var err error
-	tproxyListener, err = redir.NewTProxy(addr)
+	tproxyListener, err = tproxy.New(addr, tcpIn)
 	if err != nil {
 		return err
 	}
 
-	tproxyUDPListener, err = redir.NewRedirUDPProxy(addr)
+	tproxyUDPListener, err = tproxy.NewUDP(addr, udpIn)
 	if err != nil {
 		log.Warnln("Failed to start TProxy UDP Listener: %s", err)
 	}
 
+	log.Infoln("TProxy server listening at: %s", tproxyListener.Address())
 	return nil
 }
 
-func ReCreateMixed(port int) error {
+func ReCreateMixed(port int, tcpIn chan<- C.ConnContext, udpIn chan<- *inbound.PacketAdapter) error {
 	mixedMux.Lock()
 	defer mixedMux.Unlock()
 
@@ -253,17 +260,18 @@ func ReCreateMixed(port int) error {
 	}
 
 	var err error
-	mixedListener, err = mixed.NewMixedProxy(addr)
+	mixedListener, err = mixed.New(addr, tcpIn)
 	if err != nil {
 		return err
 	}
 
-	mixedUDPLister, err = socks.NewSocksUDPProxy(addr)
+	mixedUDPLister, err = socks.NewUDP(addr, udpIn)
 	if err != nil {
 		mixedListener.Close()
 		return err
 	}
 
+	log.Infoln("Mixed(http+socks5) proxy listening at: %s", mixedListener.Address())
 	return nil
 }
 
@@ -316,9 +324,8 @@ func genAddr(host string, port int, allowLan bool) string {
 	if allowLan {
 		if host == "*" {
 			return fmt.Sprintf(":%d", port)
-		} else {
-			return fmt.Sprintf("%s:%d", host, port)
 		}
+		return fmt.Sprintf("%s:%d", host, port)
 	}
 
 	return fmt.Sprintf("127.0.0.1:%d", port)

listener/mixed/mixed.go

@@ -0,0 +1,67 @@
+package mixed
+
+import (
+	"net"
+	"time"
+
+	"github.com/Dreamacro/clash/common/cache"
+	N "github.com/Dreamacro/clash/common/net"
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/listener/http"
+	"github.com/Dreamacro/clash/listener/socks"
+	"github.com/Dreamacro/clash/transport/socks5"
+)
+
+type Listener struct {
+	listener net.Listener
+	address  string
+	closed   bool
+	cache    *cache.Cache
+}
+
+func New(addr string, in chan<- C.ConnContext) (*Listener, error) {
+	l, err := net.Listen("tcp", addr)
+	if err != nil {
+		return nil, err
+	}
+
+	ml := &Listener{l, addr, false, cache.New(30 * time.Second)}
+	go func() {
+		for {
+			c, err := ml.listener.Accept()
+			if err != nil {
+				if ml.closed {
+					break
+				}
+				continue
+			}
+			go handleConn(c, in, ml.cache)
+		}
+	}()
+
+	return ml, nil
+}
+
+func (l *Listener) Close() {
+	l.closed = true
+	l.listener.Close()
+}
+
+func (l *Listener) Address() string {
+	return l.address
+}
+
+func handleConn(conn net.Conn, in chan<- C.ConnContext, cache *cache.Cache) {
+	bufConn := N.NewBufferedConn(conn)
+	head, err := bufConn.Peek(1)
+	if err != nil {
+		return
+	}
+
+	if head[0] == socks5.Version {
+		socks.HandleSocks(bufConn, in)
+		return
+	}
+
+	http.HandleConn(bufConn, in, cache)
+}

listener/redir/tcp.go

@@ -0,0 +1,56 @@
+package redir
+
+import (
+	"net"
+
+	"github.com/Dreamacro/clash/adapter/inbound"
+	C "github.com/Dreamacro/clash/constant"
+)
+
+type Listener struct {
+	listener net.Listener
+	address  string
+	closed   bool
+}
+
+func New(addr string, in chan<- C.ConnContext) (*Listener, error) {
+	l, err := net.Listen("tcp", addr)
+	if err != nil {
+		return nil, err
+	}
+	rl := &Listener{l, addr, false}
+
+	go func() {
+		for {
+			c, err := l.Accept()
+			if err != nil {
+				if rl.closed {
+					break
+				}
+				continue
+			}
+			go handleRedir(c, in)
+		}
+	}()
+
+	return rl, nil
+}
+
+func (l *Listener) Close() {
+	l.closed = true
+	l.listener.Close()
+}
+
+func (l *Listener) Address() string {
+	return l.address
+}
+
+func handleRedir(conn net.Conn, in chan<- C.ConnContext) {
+	target, err := parserPacket(conn)
+	if err != nil {
+		conn.Close()
+		return
+	}
+	conn.(*net.TCPConn).SetKeepAlive(true)
+	in <- inbound.NewSocket(target, conn, C.REDIR)
+}

listener/redir/tcp_darwin.go

@@ -5,7 +5,7 @@ import (
 	"syscall"
 	"unsafe"
 
-	"github.com/Dreamacro/clash/component/socks5"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
 func parserPacket(c net.Conn) (socks5.Addr, error) {

listener/redir/tcp_freebsd.go

@@ -6,7 +6,7 @@ import (
 	"syscall"
 	"unsafe"
 
-	"github.com/Dreamacro/clash/component/socks5"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
 const (

listener/redir/tcp_linux.go

@@ -6,7 +6,7 @@ import (
 	"syscall"
 	"unsafe"
 
-	"github.com/Dreamacro/clash/component/socks5"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
 const (

listener/redir/tcp_other.go

@@ -0,0 +1,14 @@
+// +build !darwin,!linux,!freebsd
+
+package redir
+
+import (
+	"errors"
+	"net"
+
+	"github.com/Dreamacro/clash/transport/socks5"
+)
+
+func parserPacket(conn net.Conn) (socks5.Addr, error) {
+	return nil, errors.New("system not support yet")
+}

listener/socks/tcp.go

@@ -5,29 +5,26 @@ import (
 	"io/ioutil"
 	"net"
 
-	adapters "github.com/Dreamacro/clash/adapters/inbound"
-	"github.com/Dreamacro/clash/component/socks5"
+	"github.com/Dreamacro/clash/adapter/inbound"
 	C "github.com/Dreamacro/clash/constant"
-	"github.com/Dreamacro/clash/log"
-	authStore "github.com/Dreamacro/clash/proxy/auth"
-	"github.com/Dreamacro/clash/tunnel"
+	authStore "github.com/Dreamacro/clash/listener/auth"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
-type SockListener struct {
-	net.Listener
+type Listener struct {
+	listener net.Listener
 	address  string
 	closed   bool
 }
 
-func NewSocksProxy(addr string) (*SockListener, error) {
+func New(addr string, in chan<- C.ConnContext) (*Listener, error) {
 	l, err := net.Listen("tcp", addr)
 	if err != nil {
 		return nil, err
 	}
 
-	sl := &SockListener{l, addr, false}
+	sl := &Listener{l, addr, false}
 	go func() {
-		log.Infoln("SOCKS proxy listening at: %s", addr)
 		for {
 			c, err := l.Accept()
 			if err != nil {
@@ -36,23 +33,23 @@ func NewSocksProxy(addr string) (*SockListener, error) {
 				}
 				continue
 			}
-			go HandleSocks(c)
+			go HandleSocks(c, in)
 		}
 	}()
 
 	return sl, nil
 }
 
-func (l *SockListener) Close() {
+func (l *Listener) Close() {
 	l.closed = true
-	l.Listener.Close()
+	l.listener.Close()
 }
 
-func (l *SockListener) Address() string {
+func (l *Listener) Address() string {
 	return l.address
 }
 
-func HandleSocks(conn net.Conn) {
+func HandleSocks(conn net.Conn, in chan<- C.ConnContext) {
 	target, command, err := socks5.ServerHandshake(conn, authStore.Authenticator())
 	if err != nil {
 		conn.Close()
@@ -66,5 +63,5 @@ func HandleSocks(conn net.Conn) {
 		io.Copy(ioutil.Discard, conn)
 		return
 	}
-	tunnel.Add(adapters.NewSocket(target, conn, C.SOCKS))
+	in <- inbound.NewSocket(target, conn, C.SOCKS)
 }

listener/socks/udp.go

@@ -3,33 +3,31 @@ package socks
 import (
 	"net"
 
-	adapters "github.com/Dreamacro/clash/adapters/inbound"
+	"github.com/Dreamacro/clash/adapter/inbound"
 	"github.com/Dreamacro/clash/common/pool"
 	"github.com/Dreamacro/clash/common/sockopt"
-	"github.com/Dreamacro/clash/component/socks5"
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/log"
-	"github.com/Dreamacro/clash/tunnel"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
-type SockUDPListener struct {
-	net.PacketConn
+type UDPListener struct {
+	packetConn net.PacketConn
 	address    string
 	closed     bool
 }
 
-func NewSocksUDPProxy(addr string) (*SockUDPListener, error) {
+func NewUDP(addr string, in chan<- *inbound.PacketAdapter) (*UDPListener, error) {
 	l, err := net.ListenPacket("udp", addr)
 	if err != nil {
 		return nil, err
 	}
 
-	err = sockopt.UDPReuseaddr(l.(*net.UDPConn))
-	if err != nil {
+	if err := sockopt.UDPReuseaddr(l.(*net.UDPConn)); err != nil {
 		log.Warnln("Failed to Reuse UDP Address: %s", err)
 	}
 
-	sl := &SockUDPListener{l, addr, false}
+	sl := &UDPListener{l, addr, false}
 	go func() {
 		for {
 			buf := pool.Get(pool.RelayBufferSize)
@@ -41,23 +39,23 @@ func NewSocksUDPProxy(addr string) (*SockUDPListener, error) {
 				}
 				continue
 			}
-			handleSocksUDP(l, buf[:n], remoteAddr)
+			handleSocksUDP(l, in, buf[:n], remoteAddr)
 		}
 	}()
 
 	return sl, nil
 }
 
-func (l *SockUDPListener) Close() error {
+func (l *UDPListener) Close() error {
 	l.closed = true
-	return l.PacketConn.Close()
+	return l.packetConn.Close()
 }
 
-func (l *SockUDPListener) Address() string {
+func (l *UDPListener) Address() string {
 	return l.address
 }
 
-func handleSocksUDP(pc net.PacketConn, buf []byte, addr net.Addr) {
+func handleSocksUDP(pc net.PacketConn, in chan<- *inbound.PacketAdapter, buf []byte, addr net.Addr) {
 	target, payload, err := socks5.DecodeUDPPacket(buf)
 	if err != nil {
 		// Unresolved UDP packet, return buffer to the pool
@@ -70,5 +68,8 @@ func handleSocksUDP(pc net.PacketConn, buf []byte, addr net.Addr) {
 		payload: payload,
 		bufRef:  buf,
 	}
-	tunnel.AddPacket(adapters.NewPacket(target, packet, C.SOCKS))
+	select {
+	case in <- inbound.NewPacket(target, packet, C.TPROXY):
+	default:
+	}
 }

listener/socks/utils.go

@@ -4,7 +4,7 @@ import (
 	"net"
 
 	"github.com/Dreamacro/clash/common/pool"
-	"github.com/Dreamacro/clash/component/socks5"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
 type packet struct {

listener/tproxy/packet.go

@@ -1,4 +1,4 @@
-package redir
+package tproxy
 
 import (
 	"net"

listener/tproxy/setsockopt_linux.go

@@ -1,6 +1,6 @@
 // +build linux
 
-package redir
+package tproxy
 
 import (
 	"net"

listener/tproxy/setsockopt_other.go

@@ -1,6 +1,6 @@
 // +build !linux
 
-package redir
+package tproxy
 
 import (
 	"errors"

listener/tproxy/tproxy.go

@@ -0,0 +1,68 @@
+package tproxy
+
+import (
+	"net"
+
+	"github.com/Dreamacro/clash/adapter/inbound"
+	C "github.com/Dreamacro/clash/constant"
+	"github.com/Dreamacro/clash/transport/socks5"
+)
+
+type Listener struct {
+	listener net.Listener
+	address  string
+	closed   bool
+}
+
+func New(addr string, in chan<- C.ConnContext) (*Listener, error) {
+	l, err := net.Listen("tcp", addr)
+	if err != nil {
+		return nil, err
+	}
+
+	tl := l.(*net.TCPListener)
+	rc, err := tl.SyscallConn()
+	if err != nil {
+		return nil, err
+	}
+
+	err = setsockopt(rc, addr)
+	if err != nil {
+		return nil, err
+	}
+
+	rl := &Listener{
+		listener: l,
+		address:  addr,
+	}
+
+	go func() {
+		for {
+			c, err := l.Accept()
+			if err != nil {
+				if rl.closed {
+					break
+				}
+				continue
+			}
+			go rl.handleTProxy(c, in)
+		}
+	}()
+
+	return rl, nil
+}
+
+func (l *Listener) Close() {
+	l.closed = true
+	l.listener.Close()
+}
+
+func (l *Listener) Address() string {
+	return l.address
+}
+
+func (l *Listener) handleTProxy(conn net.Conn, in chan<- C.ConnContext) {
+	target := socks5.ParseAddrToSocksAddr(conn.LocalAddr())
+	conn.(*net.TCPConn).SetKeepAlive(true)
+	in <- inbound.NewSocket(target, conn, C.TPROXY)
+}

listener/tproxy/udp.go

@@ -1,28 +1,27 @@
-package redir
+package tproxy
 
 import (
 	"net"
 
-	adapters "github.com/Dreamacro/clash/adapters/inbound"
+	"github.com/Dreamacro/clash/adapter/inbound"
 	"github.com/Dreamacro/clash/common/pool"
-	"github.com/Dreamacro/clash/component/socks5"
 	C "github.com/Dreamacro/clash/constant"
-	"github.com/Dreamacro/clash/tunnel"
+	"github.com/Dreamacro/clash/transport/socks5"
 )
 
-type RedirUDPListener struct {
-	net.PacketConn
+type UDPListener struct {
+	packetConn net.PacketConn
 	address    string
 	closed     bool
 }
 
-func NewRedirUDPProxy(addr string) (*RedirUDPListener, error) {
+func NewUDP(addr string, in chan<- *inbound.PacketAdapter) (*UDPListener, error) {
 	l, err := net.ListenPacket("udp", addr)
 	if err != nil {
 		return nil, err
 	}
 
-	rl := &RedirUDPListener{l, addr, false}
+	rl := &UDPListener{l, addr, false}
 
 	c := l.(*net.UDPConn)
 
@@ -53,27 +52,30 @@ func NewRedirUDPProxy(addr string) (*RedirUDPListener, error) {
 			if err != nil {
 				continue
 			}
-			handleRedirUDP(l, buf[:n], lAddr, rAddr)
+			handlePacketConn(l, in, buf[:n], lAddr, rAddr)
 		}
 	}()
 
 	return rl, nil
 }
 
-func (l *RedirUDPListener) Close() error {
+func (l *UDPListener) Close() error {
 	l.closed = true
-	return l.PacketConn.Close()
+	return l.packetConn.Close()
 }
 
-func (l *RedirUDPListener) Address() string {
+func (l *UDPListener) Address() string {
 	return l.address
 }
 
-func handleRedirUDP(pc net.PacketConn, buf []byte, lAddr *net.UDPAddr, rAddr *net.UDPAddr) {
+func handlePacketConn(pc net.PacketConn, in chan<- *inbound.PacketAdapter, buf []byte, lAddr *net.UDPAddr, rAddr *net.UDPAddr) {
 	target := socks5.ParseAddrToSocksAddr(rAddr)
 	pkt := &packet{
 		lAddr: lAddr,
 		buf:   buf,
 	}
-	tunnel.AddPacket(adapters.NewPacket(target, pkt, C.REDIR))
+	select {
+	case in <- inbound.NewPacket(target, pkt, C.TPROXY):
+	default:
+	}
 }

listener/tproxy/udp_linux.go

@@ -1,8 +1,10 @@
 // +build linux
 
-package redir
+package tproxy
 
 import (
+	"encoding/binary"
+	"errors"
 	"fmt"
 	"net"
 	"os"
@@ -10,6 +12,11 @@ import (
 	"syscall"
 )
 
+const (
+	IPV6_TRANSPARENT     = 0x4b
+	IPV6_RECVORIGDSTADDR = 0x4a
+)
+
 // dialUDP acts like net.DialUDP for transparent proxy.
 // It binds to a non-local address(`lAddr`).
 func dialUDP(network string, lAddr *net.UDPAddr, rAddr *net.UDPAddr) (*net.UDPConn, error) {
@@ -94,3 +101,24 @@ func udpAddrFamily(net string, lAddr, rAddr *net.UDPAddr) int {
 	}
 	return syscall.AF_INET6
 }
+
+func getOrigDst(oob []byte, oobn int) (*net.UDPAddr, error) {
+	msgs, err := syscall.ParseSocketControlMessage(oob[:oobn])
+	if err != nil {
+		return nil, err
+	}
+
+	for _, msg := range msgs {
+		if msg.Header.Level == syscall.SOL_IP && msg.Header.Type == syscall.IP_RECVORIGDSTADDR {
+			ip := net.IP(msg.Data[4:8])
+			port := binary.BigEndian.Uint16(msg.Data[2:4])
+			return &net.UDPAddr{IP: ip, Port: int(port)}, nil
+		} else if msg.Header.Level == syscall.SOL_IPV6 && msg.Header.Type == IPV6_RECVORIGDSTADDR {
+			ip := net.IP(msg.Data[8:24])
+			port := binary.BigEndian.Uint16(msg.Data[2:4])
+			return &net.UDPAddr{IP: ip, Port: int(port)}, nil
+		}
+	}
+
+	return nil, errors.New("cannot find origDst")
+}

listener/tproxy/udp_other.go

@@ -1,12 +1,16 @@
 // +build !linux
 
-package redir
+package tproxy
 
 import (
 	"errors"
 	"net"
 )
 
+func getOrigDst(oob []byte, oobn int) (*net.UDPAddr, error) {
+	return nil, errors.New("UDP redir not supported on current platform")
+}
+
 func dialUDP(network string, lAddr *net.UDPAddr, rAddr *net.UDPAddr) (*net.UDPConn, error) {
 	return nil, errors.New("UDP redir not supported on current platform")
 }

main.go

@@ -45,7 +45,7 @@ func init() {
 
 func main() {
 	if version {
-		fmt.Printf("Clash %s %s %s %s\n", C.Version, runtime.GOOS, runtime.GOARCH, C.BuildTime)
+		fmt.Printf("Clash %s %s %s with %s %s\n", C.Version, runtime.GOOS, runtime.GOARCH, runtime.Version(), C.BuildTime)
 		return
 	}
 

proxy/http/server.go

@@ -1,114 +0,0 @@
-package http
-
-import (
-	"bufio"
-	"encoding/base64"
-	"net"
-	"net/http"
-	"strings"
-	"time"
-
-	adapters "github.com/Dreamacro/clash/adapters/inbound"
-	"github.com/Dreamacro/clash/common/cache"
-	"github.com/Dreamacro/clash/component/auth"
-	"github.com/Dreamacro/clash/log"
-	authStore "github.com/Dreamacro/clash/proxy/auth"
-	"github.com/Dreamacro/clash/tunnel"
-)
-
-type HttpListener struct {
-	net.Listener
-	address string
-	closed  bool
-	cache   *cache.Cache
-}
-
-func NewHttpProxy(addr string) (*HttpListener, error) {
-	l, err := net.Listen("tcp", addr)
-	if err != nil {
-		return nil, err
-	}
-	hl := &HttpListener{l, addr, false, cache.New(30 * time.Second)}
-
-	go func() {
-		log.Infoln("HTTP proxy listening at: %s", addr)
-
-		for {
-			c, err := hl.Accept()
-			if err != nil {
-				if hl.closed {
-					break
-				}
-				continue
-			}
-			go HandleConn(c, hl.cache)
-		}
-	}()
-
-	return hl, nil
-}
-
-func (l *HttpListener) Close() {
-	l.closed = true
-	l.Listener.Close()
-}
-
-func (l *HttpListener) Address() string {
-	return l.address
-}
-
-func canActivate(loginStr string, authenticator auth.Authenticator, cache *cache.Cache) (ret bool) {
-	if result := cache.Get(loginStr); result != nil {
-		ret = result.(bool)
-		return
-	}
-	loginData, err := base64.StdEncoding.DecodeString(loginStr)
-	login := strings.Split(string(loginData), ":")
-	ret = err == nil && len(login) == 2 && authenticator.Verify(login[0], login[1])
-
-	cache.Put(loginStr, ret, time.Minute)
-	return
-}
-
-func HandleConn(conn net.Conn, cache *cache.Cache) {
-	br := bufio.NewReader(conn)
-
-keepAlive:
-	request, err := http.ReadRequest(br)
-	if err != nil || request.URL.Host == "" {
-		conn.Close()
-		return
-	}
-
-	keepAlive := strings.TrimSpace(strings.ToLower(request.Header.Get("Proxy-Connection"))) == "keep-alive"
-	authenticator := authStore.Authenticator()
-	if authenticator != nil {
-		if authStrings := strings.Split(request.Header.Get("Proxy-Authorization"), " "); len(authStrings) != 2 {
-			conn.Write([]byte("HTTP/1.1 407 Proxy Authentication Required\r\nProxy-Authenticate: Basic\r\n\r\n"))
-			if keepAlive {
-				goto keepAlive
-			}
-			return
-		} else if !canActivate(authStrings[1], authenticator, cache) {
-			conn.Write([]byte("HTTP/1.1 403 Forbidden\r\n\r\n"))
-			log.Infoln("Auth failed from %s", conn.RemoteAddr().String())
-			if keepAlive {
-				goto keepAlive
-			}
-			conn.Close()
-			return
-		}
-	}
-
-	if request.Method == http.MethodConnect {
-		_, err := conn.Write([]byte("HTTP/1.1 200 Connection established\r\n\r\n"))
-		if err != nil {
-			conn.Close()
-			return
-		}
-		tunnel.Add(adapters.NewHTTPS(request, conn))
-		return
-	}
-
-	tunnel.Add(adapters.NewHTTP(request, conn))
-}

proxy/mixed/mixed.go

@@ -1,69 +0,0 @@
-package mixed
-
-import (
-	"net"
-	"time"
-
-	"github.com/Dreamacro/clash/common/cache"
-	"github.com/Dreamacro/clash/component/socks5"
-	"github.com/Dreamacro/clash/log"
-
-	"github.com/Dreamacro/clash/proxy/http"
-	"github.com/Dreamacro/clash/proxy/socks"
-)
-
-type MixedListener struct {
-	net.Listener
-	address string
-	closed  bool
-	cache   *cache.Cache
-}
-
-func NewMixedProxy(addr string) (*MixedListener, error) {
-	l, err := net.Listen("tcp", addr)
-	if err != nil {
-		return nil, err
-	}
-
-	ml := &MixedListener{l, addr, false, cache.New(30 * time.Second)}
-	go func() {
-		log.Infoln("Mixed(http+socks5) proxy listening at: %s", addr)
-
-		for {
-			c, err := ml.Accept()
-			if err != nil {
-				if ml.closed {
-					break
-				}
-				continue
-			}
-			go handleConn(c, ml.cache)
-		}
-	}()
-
-	return ml, nil
-}
-
-func (l *MixedListener) Close() {
-	l.closed = true
-	l.Listener.Close()
-}
-
-func (l *MixedListener) Address() string {
-	return l.address
-}
-
-func handleConn(conn net.Conn, cache *cache.Cache) {
-	bufConn := NewBufferedConn(conn)
-	head, err := bufConn.Peek(1)
-	if err != nil {
-		return
-	}
-
-	if head[0] == socks5.Version {
-		socks.HandleSocks(bufConn)
-		return
-	}
-
-	http.HandleConn(bufConn, cache)
-}

proxy/redir/tcp.go

@@ -1,59 +0,0 @@
-package redir
-
-import (
-	"net"
-
-	"github.com/Dreamacro/clash/adapters/inbound"
-	C "github.com/Dreamacro/clash/constant"
-	"github.com/Dreamacro/clash/log"
-	"github.com/Dreamacro/clash/tunnel"
-)
-
-type RedirListener struct {
-	net.Listener
-	address string
-	closed  bool
-}
-
-func NewRedirProxy(addr string) (*RedirListener, error) {
-	l, err := net.Listen("tcp", addr)
-	if err != nil {
-		return nil, err
-	}
-	rl := &RedirListener{l, addr, false}
-
-	go func() {
-		log.Infoln("Redir proxy listening at: %s", addr)
-		for {
-			c, err := l.Accept()
-			if err != nil {
-				if rl.closed {
-					break
-				}
-				continue
-			}
-			go handleRedir(c)
-		}
-	}()
-
-	return rl, nil
-}
-
-func (l *RedirListener) Close() {
-	l.closed = true
-	l.Listener.Close()
-}
-
-func (l *RedirListener) Address() string {
-	return l.address
-}
-
-func handleRedir(conn net.Conn) {
-	target, err := parserPacket(conn)
-	if err != nil {
-		conn.Close()
-		return
-	}
-	conn.(*net.TCPConn).SetKeepAlive(true)
-	tunnel.Add(inbound.NewSocket(target, conn, C.REDIR))
-}

proxy/redir/tcp_windows.go

@@ -1,12 +0,0 @@
-package redir
-
-import (
-	"errors"
-	"net"
-
-	"github.com/Dreamacro/clash/component/socks5"
-)
-
-func parserPacket(conn net.Conn) (socks5.Addr, error) {
-	return nil, errors.New("Windows not support yet")
-}

proxy/redir/tproxy.go

@@ -1,71 +0,0 @@
-package redir
-
-import (
-	"net"
-
-	"github.com/Dreamacro/clash/adapters/inbound"
-	"github.com/Dreamacro/clash/component/socks5"
-	C "github.com/Dreamacro/clash/constant"
-	"github.com/Dreamacro/clash/log"
-	"github.com/Dreamacro/clash/tunnel"
-)
-
-type TProxyListener struct {
-	net.Listener
-	address string
-	closed  bool
-}
-
-func NewTProxy(addr string) (*TProxyListener, error) {
-	l, err := net.Listen("tcp", addr)
-	if err != nil {
-		return nil, err
-	}
-
-	tl := l.(*net.TCPListener)
-	rc, err := tl.SyscallConn()
-	if err != nil {
-		return nil, err
-	}
-
-	err = setsockopt(rc, addr)
-	if err != nil {
-		return nil, err
-	}
-
-	rl := &TProxyListener{
-		Listener: l,
-		address:  addr,
-	}
-
-	go func() {
-		log.Infoln("TProxy server listening at: %s", addr)
-		for {
-			c, err := l.Accept()
-			if err != nil {
-				if rl.closed {
-					break
-				}
-				continue
-			}
-			go rl.handleRedir(c)
-		}
-	}()
-
-	return rl, nil
-}
-
-func (l *TProxyListener) Close() {
-	l.closed = true
-	l.Listener.Close()
-}
-
-func (l *TProxyListener) Address() string {
-	return l.address
-}
-
-func (l *TProxyListener) handleRedir(conn net.Conn) {
-	target := socks5.ParseAddrToSocksAddr(conn.LocalAddr())
-	conn.(*net.TCPConn).SetKeepAlive(true)
-	tunnel.Add(inbound.NewSocket(target, conn, C.TPROXY))
-}

proxy/redir/udp_linux.go

@@ -1,36 +0,0 @@
-// +build linux
-
-package redir
-
-import (
-	"encoding/binary"
-	"errors"
-	"net"
-	"syscall"
-)
-
-const (
-	IPV6_TRANSPARENT     = 0x4b
-	IPV6_RECVORIGDSTADDR = 0x4a
-)
-
-func getOrigDst(oob []byte, oobn int) (*net.UDPAddr, error) {
-	msgs, err := syscall.ParseSocketControlMessage(oob[:oobn])
-	if err != nil {
-		return nil, err
-	}
-
-	for _, msg := range msgs {
-		if msg.Header.Level == syscall.SOL_IP && msg.Header.Type == syscall.IP_RECVORIGDSTADDR {
-			ip := net.IP(msg.Data[4:8])
-			port := binary.BigEndian.Uint16(msg.Data[2:4])
-			return &net.UDPAddr{IP: ip, Port: int(port)}, nil
-		} else if msg.Header.Level == syscall.SOL_IPV6 && msg.Header.Type == IPV6_RECVORIGDSTADDR {
-			ip := net.IP(msg.Data[8:24])
-			port := binary.BigEndian.Uint16(msg.Data[2:4])
-			return &net.UDPAddr{IP: ip, Port: int(port)}, nil
-		}
-	}
-
-	return nil, errors.New("cannot find origDst")
-}

proxy/redir/udp_other.go

@@ -1,12 +0,0 @@
-// +build !linux
-
-package redir
-
-import (
-	"errors"
-	"net"
-)
-
-func getOrigDst(oob []byte, oobn int) (*net.UDPAddr, error) {
-	return nil, errors.New("UDP redir not supported on current platform")
-}