Add Surge MITM and scripts

script/jsc/assert.go

@@ -0,0 +1,121 @@
+package jsc
+
+import (
+	"net/http"
+
+	F "github.com/sagernet/sing/common/format"
+
+	"github.com/dop251/goja"
+)
+
+func IsNil(value goja.Value) bool {
+	return value == nil || goja.IsUndefined(value) || goja.IsNull(value)
+}
+
+func AssertObject(vm *goja.Runtime, value goja.Value, name string, nilable bool) *goja.Object {
+	if IsNil(value) {
+		if nilable {
+			return nil
+		}
+		panic(vm.NewTypeError(F.ToString("invalid argument: missing ", name)))
+	}
+	objectValue, isObject := value.(*goja.Object)
+	if !isObject {
+		panic(vm.NewTypeError(F.ToString("invalid argument: ", name, ": expected object, but got ", value)))
+	}
+	return objectValue
+}
+
+func AssertString(vm *goja.Runtime, value goja.Value, name string, nilable bool) string {
+	if IsNil(value) {
+		if nilable {
+			return ""
+		}
+		panic(vm.NewTypeError(F.ToString("invalid argument: missing ", name)))
+	}
+	stringValue, isString := value.Export().(string)
+	if !isString {
+		panic(vm.NewTypeError(F.ToString("invalid argument: ", name, ": expected string, but got ", value)))
+	}
+	return stringValue
+}
+
+func AssertInt(vm *goja.Runtime, value goja.Value, name string, nilable bool) int64 {
+	if IsNil(value) {
+		if nilable {
+			return 0
+		}
+		panic(vm.NewTypeError(F.ToString("invalid argument: missing ", name)))
+	}
+	integerValue, isNumber := value.Export().(int64)
+	if !isNumber {
+		panic(vm.NewTypeError(F.ToString("invalid argument: ", name, ": expected integer, but got ", value)))
+	}
+	return integerValue
+}
+
+func AssertBool(vm *goja.Runtime, value goja.Value, name string, nilable bool) bool {
+	if IsNil(value) {
+		if nilable {
+			return false
+		}
+		panic(vm.NewTypeError(F.ToString("invalid argument: missing ", name)))
+	}
+	boolValue, isBool := value.Export().(bool)
+	if !isBool {
+		panic(vm.NewTypeError(F.ToString("invalid argument: ", name, ": expected boolean, but got ", value)))
+	}
+	return boolValue
+}
+
+func AssertBinary(vm *goja.Runtime, value goja.Value, name string, nilable bool) []byte {
+	if IsNil(value) {
+		if nilable {
+			return nil
+		}
+		panic(vm.NewTypeError(F.ToString("invalid argument: missing ", name)))
+	}
+	switch exportedValue := value.Export().(type) {
+	case []byte:
+		return exportedValue
+	case goja.ArrayBuffer:
+		return exportedValue.Bytes()
+	default:
+		panic(vm.NewTypeError(F.ToString("invalid argument: ", name, ": expected Uint8Array or ArrayBuffer, but got ", value)))
+	}
+}
+
+func AssertStringBinary(vm *goja.Runtime, value goja.Value, name string, nilable bool) []byte {
+	if IsNil(value) {
+		if nilable {
+			return nil
+		}
+		panic(vm.NewTypeError(F.ToString("invalid argument: missing ", name)))
+	}
+	switch exportedValue := value.Export().(type) {
+	case string:
+		return []byte(exportedValue)
+	case []byte:
+		return exportedValue
+	case goja.ArrayBuffer:
+		return exportedValue.Bytes()
+	default:
+		panic(vm.NewTypeError(F.ToString("invalid argument: ", name, ": expected string, Uint8Array or ArrayBuffer, but got ", value)))
+	}
+}
+
+func AssertFunction(vm *goja.Runtime, value goja.Value, name string) goja.Callable {
+	functionValue, isFunction := goja.AssertFunction(value)
+	if !isFunction {
+		panic(vm.NewTypeError(F.ToString("invalid argument: ", name, ": expected function, but got ", value)))
+	}
+	return functionValue
+}
+
+func AssertHTTPHeader(vm *goja.Runtime, value goja.Value, name string) http.Header {
+	headersObject := AssertObject(vm, value, name, true)
+	if headersObject == nil {
+		return nil
+	}
+	return ObjectToHeaders(vm, headersObject, name)
+}