Add Surge MITM and scripts

script/runtime.go

@@ -0,0 +1,49 @@
+//go:build with_script
+
+package script
+
+import (
+	"context"
+
+	"github.com/sagernet/sing-box/script/modules/boxctx"
+	"github.com/sagernet/sing-box/script/modules/console"
+	"github.com/sagernet/sing-box/script/modules/eventloop"
+	"github.com/sagernet/sing-box/script/modules/require"
+	"github.com/sagernet/sing-box/script/modules/surge"
+	"github.com/sagernet/sing-box/script/modules/url"
+	E "github.com/sagernet/sing/common/exceptions"
+	"github.com/sagernet/sing/common/logger"
+	"github.com/sagernet/sing/common/ntp"
+
+	"github.com/dop251/goja"
+	"github.com/dop251/goja/parser"
+)
+
+func NewRuntime(ctx context.Context, cancel context.CancelCauseFunc) *goja.Runtime {
+	vm := goja.New()
+	if timeFunc := ntp.TimeFuncFromContext(ctx); timeFunc != nil {
+		vm.SetTimeSource(timeFunc)
+	}
+	vm.SetParserOptions(parser.WithDisableSourceMaps)
+	registry := require.NewRegistry(require.WithLoader(func(path string) ([]byte, error) {
+		return nil, E.New("unsupported usage")
+	}))
+	registry.Enable(vm)
+	registry.RegisterNodeModule(console.ModuleName, console.Require)
+	registry.RegisterNodeModule(url.ModuleName, url.Require)
+	registry.RegisterNativeModule(boxctx.ModuleName, boxctx.Require)
+	registry.RegisterNativeModule(surge.ModuleName, surge.Require)
+	console.Enable(vm)
+	url.Enable(vm)
+	eventloop.Enable(vm, cancel)
+	return vm
+}
+
+func SetModules(runtime *goja.Runtime, ctx context.Context, logger logger.ContextLogger, errorHandler func(error), tag string) {
+	boxctx.Enable(runtime, &boxctx.Context{
+		Context:      ctx,
+		Logger:       logger,
+		Tag:          tag,
+		ErrorHandler: errorHandler,
+	})
+}