Refactor struct & Add override dialer options

adapter/outbound/default.go

@@ -1,138 +0,0 @@
-package outbound
-
-import (
-	"context"
-	"net"
-	"runtime"
-	"sync"
-	"time"
-
-	"github.com/database64128/tfo-go"
-	"github.com/sagernet/sing-box/adapter"
-	"github.com/sagernet/sing-box/log"
-	"github.com/sagernet/sing-box/option"
-	"github.com/sagernet/sing/common"
-	"github.com/sagernet/sing/common/buf"
-	"github.com/sagernet/sing/common/bufio"
-	"github.com/sagernet/sing/common/control"
-	E "github.com/sagernet/sing/common/exceptions"
-	M "github.com/sagernet/sing/common/metadata"
-	N "github.com/sagernet/sing/common/network"
-)
-
-type myOutboundAdapter struct {
-	protocol string
-	logger   log.Logger
-	tag      string
-	dialer   N.Dialer
-}
-
-func (a *myOutboundAdapter) Type() string {
-	return a.protocol
-}
-
-func (a *myOutboundAdapter) Tag() string {
-	return a.tag
-}
-
-type defaultDialer struct {
-	tfo.Dialer
-	net.ListenConfig
-}
-
-func (d *defaultDialer) DialContext(ctx context.Context, network string, address M.Socksaddr) (net.Conn, error) {
-	return d.Dialer.DialContext(ctx, network, address.String())
-}
-
-func (d *defaultDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
-	return d.ListenConfig.ListenPacket(ctx, "udp", "")
-}
-
-func newDialer(options option.DialerOptions) N.Dialer {
-	var dialer net.Dialer
-	var listener net.ListenConfig
-	if options.BindInterface != "" {
-		dialer.Control = control.Append(dialer.Control, control.BindToInterface(options.BindInterface))
-		listener.Control = control.Append(listener.Control, control.BindToInterface(options.BindInterface))
-	}
-	if options.RoutingMark != 0 {
-		dialer.Control = control.Append(dialer.Control, control.RoutingMark(options.RoutingMark))
-		listener.Control = control.Append(listener.Control, control.RoutingMark(options.RoutingMark))
-	}
-	if options.ReuseAddr {
-		listener.Control = control.Append(listener.Control, control.ReuseAddr())
-	}
-	if options.ConnectTimeout != 0 {
-		dialer.Timeout = time.Duration(options.ConnectTimeout) * time.Second
-	}
-	return &defaultDialer{tfo.Dialer{Dialer: dialer, DisableTFO: !options.TCPFastOpen}, listener}
-}
-
-type lazyDialer struct {
-	router   adapter.Router
-	options  option.DialerOptions
-	dialer   N.Dialer
-	initOnce sync.Once
-	initErr  error
-}
-
-func NewDialer(router adapter.Router, options option.DialerOptions) N.Dialer {
-	if options.Detour == "" {
-		return newDialer(options)
-	}
-	return &lazyDialer{
-		router:  router,
-		options: options,
-	}
-}
-
-func (d *lazyDialer) Dialer() (N.Dialer, error) {
-	d.initOnce.Do(func() {
-		var loaded bool
-		d.dialer, loaded = d.router.Outbound(d.options.Detour)
-		if !loaded {
-			d.initErr = E.New("outbound detour not found: ", d.options.Detour)
-		}
-	})
-	return d.dialer, d.initErr
-}
-
-func (d *lazyDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
-	dialer, err := d.Dialer()
-	if err != nil {
-		return nil, err
-	}
-	return dialer.DialContext(ctx, network, destination)
-}
-
-func (d *lazyDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
-	dialer, err := d.Dialer()
-	if err != nil {
-		return nil, err
-	}
-	return dialer.ListenPacket(ctx, destination)
-}
-
-func CopyEarlyConn(ctx context.Context, conn net.Conn, serverConn net.Conn) error {
-	_payload := buf.StackNew()
-	payload := common.Dup(_payload)
-	err := conn.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
-	if err != nil {
-		return err
-	}
-	_, err = payload.ReadFrom(conn)
-	if err != nil && !E.IsTimeout(err) {
-		return E.Cause(err, "read payload")
-	}
-	err = conn.SetReadDeadline(time.Time{})
-	if err != nil {
-		payload.Release()
-		return err
-	}
-	_, err = serverConn.Write(payload.Bytes())
-	if err != nil {
-		return E.Cause(err, "client handshake")
-	}
-	runtime.KeepAlive(_payload)
-	return bufio.CopyConn(ctx, conn, serverConn)
-}