refactor: Modular inbounds/outbounds

option/outbound.go

@@ -1,104 +1,49 @@
 package option
 
 import (
-	C "github.com/sagernet/sing-box/constant"
+	"context"
+
 	E "github.com/sagernet/sing/common/exceptions"
 	"github.com/sagernet/sing/common/json"
+	"github.com/sagernet/sing/common/json/badjson"
 	M "github.com/sagernet/sing/common/metadata"
+	"github.com/sagernet/sing/service"
 )
 
+type OutboundOptionsRegistry interface {
+	CreateOptions(outboundType string) (any, bool)
+}
+
 type _Outbound struct {
-	Type                string                      `json:"type"`
-	Tag                 string                      `json:"tag,omitempty"`
-	DirectOptions       DirectOutboundOptions       `json:"-"`
-	SocksOptions        SocksOutboundOptions        `json:"-"`
-	HTTPOptions         HTTPOutboundOptions         `json:"-"`
-	ShadowsocksOptions  ShadowsocksOutboundOptions  `json:"-"`
-	VMessOptions        VMessOutboundOptions        `json:"-"`
-	TrojanOptions       TrojanOutboundOptions       `json:"-"`
-	WireGuardOptions    WireGuardOutboundOptions    `json:"-"`
-	HysteriaOptions     HysteriaOutboundOptions     `json:"-"`
-	TorOptions          TorOutboundOptions          `json:"-"`
-	SSHOptions          SSHOutboundOptions          `json:"-"`
-	ShadowTLSOptions    ShadowTLSOutboundOptions    `json:"-"`
-	ShadowsocksROptions ShadowsocksROutboundOptions `json:"-"`
-	VLESSOptions        VLESSOutboundOptions        `json:"-"`
-	TUICOptions         TUICOutboundOptions         `json:"-"`
-	Hysteria2Options    Hysteria2OutboundOptions    `json:"-"`
-	SelectorOptions     SelectorOutboundOptions     `json:"-"`
-	URLTestOptions      URLTestOutboundOptions      `json:"-"`
+	Type    string `json:"type"`
+	Tag     string `json:"tag,omitempty"`
+	Options any    `json:"-"`
 }
 
 type Outbound _Outbound
 
-func (h *Outbound) RawOptions() (any, error) {
-	var rawOptionsPtr any
-	switch h.Type {
-	case C.TypeDirect:
-		rawOptionsPtr = &h.DirectOptions
-	case C.TypeBlock, C.TypeDNS:
-		rawOptionsPtr = nil
-	case C.TypeSOCKS:
-		rawOptionsPtr = &h.SocksOptions
-	case C.TypeHTTP:
-		rawOptionsPtr = &h.HTTPOptions
-	case C.TypeShadowsocks:
-		rawOptionsPtr = &h.ShadowsocksOptions
-	case C.TypeVMess:
-		rawOptionsPtr = &h.VMessOptions
-	case C.TypeTrojan:
-		rawOptionsPtr = &h.TrojanOptions
-	case C.TypeWireGuard:
-		rawOptionsPtr = &h.WireGuardOptions
-	case C.TypeHysteria:
-		rawOptionsPtr = &h.HysteriaOptions
-	case C.TypeTor:
-		rawOptionsPtr = &h.TorOptions
-	case C.TypeSSH:
-		rawOptionsPtr = &h.SSHOptions
-	case C.TypeShadowTLS:
-		rawOptionsPtr = &h.ShadowTLSOptions
-	case C.TypeShadowsocksR:
-		rawOptionsPtr = &h.ShadowsocksROptions
-	case C.TypeVLESS:
-		rawOptionsPtr = &h.VLESSOptions
-	case C.TypeTUIC:
-		rawOptionsPtr = &h.TUICOptions
-	case C.TypeHysteria2:
-		rawOptionsPtr = &h.Hysteria2Options
-	case C.TypeSelector:
-		rawOptionsPtr = &h.SelectorOptions
-	case C.TypeURLTest:
-		rawOptionsPtr = &h.URLTestOptions
-	case "":
-		return nil, E.New("missing outbound type")
-	default:
-		return nil, E.New("unknown outbound type: ", h.Type)
-	}
-	return rawOptionsPtr, nil
+func (h *Outbound) MarshalJSONContext(ctx context.Context) ([]byte, error) {
+	return badjson.MarshallObjectsContext(ctx, (*_Outbound)(h), h.Options)
 }
 
-func (h *Outbound) MarshalJSON() ([]byte, error) {
-	rawOptions, err := h.RawOptions()
-	if err != nil {
-		return nil, err
-	}
-	return MarshallObjects((*_Outbound)(h), rawOptions)
-}
-
-func (h *Outbound) UnmarshalJSON(bytes []byte) error {
-	err := json.Unmarshal(bytes, (*_Outbound)(h))
+func (h *Outbound) UnmarshalJSONContext(ctx context.Context, content []byte) error {
+	err := json.Unmarshal(content, (*_Outbound)(h))
 	if err != nil {
 		return err
 	}
-	rawOptions, err := h.RawOptions()
-	if err != nil {
-		return err
-	}
-	err = UnmarshallExcluded(bytes, (*_Outbound)(h), rawOptions)
+	registry := service.FromContext[OutboundOptionsRegistry](ctx)
+	if registry == nil {
+		return E.New("missing outbound options registry in context")
+	}
+	options, loaded := registry.CreateOptions(h.Type)
+	if !loaded {
+		return E.New("unknown outbound type: ", h.Type)
+	}
+	err = badjson.UnmarshallExcludedContext(ctx, content, (*_Outbound)(h), options)
 	if err != nil {
 		return err
 	}
+	h.Options = options
 	return nil
 }