package serial
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import (
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"errors"
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"reflect"
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"strings"
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"github.com/golang/protobuf/proto"
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"google.golang.org/protobuf/types/known/anypb"
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)
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const V2RayTypeURLHeader = "types.v2fly.org/"
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// ToTypedMessage converts a proto Message into TypedMessage.
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func ToTypedMessage(message proto.Message) *anypb.Any {
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if message == nil {
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return nil
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}
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settings, _ := proto.Marshal(message)
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return &anypb.Any{
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TypeUrl: V2RayTypeURLHeader + GetMessageType(message),
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Value: settings,
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}
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}
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// GetMessageType returns the name of this proto Message.
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func GetMessageType(message proto.Message) string {
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return proto.MessageName(message)
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}
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// GetInstance creates a new instance of the message with messageType.
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func GetInstance(messageType string) (interface{}, error) {
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mType := proto.MessageType(messageType)
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if mType == nil || mType.Elem() == nil {
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return nil, errors.New("Serial: Unknown type: " + messageType)
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}
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return reflect.New(mType.Elem()).Interface(), nil
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}
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func GetInstanceOf(v *anypb.Any) (proto.Message, error) {
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instance, err := GetInstance(V2TypeFromURL(v.TypeUrl))
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if err != nil {
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return nil, err
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}
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protoMessage := instance.(proto.Message)
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if err := proto.Unmarshal(v.Value, protoMessage); err != nil {
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return nil, err
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}
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return protoMessage, nil
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}
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func V2Type(v *anypb.Any) string {
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return V2TypeFromURL(v.TypeUrl)
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}
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func V2TypeFromURL(string2 string) string {
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return strings.TrimPrefix(string2, V2RayTypeURLHeader)
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}
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func V2TypeHumanReadable(v *anypb.Any) string {
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return v.TypeUrl
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}
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func V2URLFromV2Type(readableType string) string {
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return readableType
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}
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