package command import ( "context" grpc "google.golang.org/grpc" "v2ray.com/core" "v2ray.com/core/common" "v2ray.com/core/features/inbound" "v2ray.com/core/features/outbound" "v2ray.com/core/proxy" ) // InboundOperation is the interface for operations that applies to inbound handlers. type InboundOperation interface { // ApplyInbound applies this operation to the given inbound handler. ApplyInbound(context.Context, inbound.Handler) error } // OutboundOperation is the interface for operations that applies to outbound handlers. type OutboundOperation interface { // ApplyOutbound applies this operation to the given outbound handler. ApplyOutbound(context.Context, outbound.Handler) error } func getInbound(handler inbound.Handler) (proxy.Inbound, error) { gi, ok := handler.(proxy.GetInbound) if !ok { return nil, newError("can't get inbound proxy from handler.") } return gi.GetInbound(), nil } // ApplyInbound implements InboundOperation. func (op *AddUserOperation) ApplyInbound(ctx context.Context, handler inbound.Handler) error { p, err := getInbound(handler) if err != nil { return err } um, ok := p.(proxy.UserManager) if !ok { return newError("proxy is not a UserManager") } mUser, err := op.User.ToMemoryUser() if err != nil { return newError("failed to parse user").Base(err) } return um.AddUser(ctx, mUser) } // ApplyInbound implements InboundOperation. func (op *RemoveUserOperation) ApplyInbound(ctx context.Context, handler inbound.Handler) error { p, err := getInbound(handler) if err != nil { return err } um, ok := p.(proxy.UserManager) if !ok { return newError("proxy is not a UserManager") } return um.RemoveUser(ctx, op.Email) } type handlerServer struct { s *core.Instance ihm inbound.Manager ohm outbound.Manager } func (s *handlerServer) AddInbound(ctx context.Context, request *AddInboundRequest) (*AddInboundResponse, error) { if err := core.AddInboundHandler(s.s, request.Inbound); err != nil { return nil, err } return &AddInboundResponse{}, nil } func (s *handlerServer) RemoveInbound(ctx context.Context, request *RemoveInboundRequest) (*RemoveInboundResponse, error) { return &RemoveInboundResponse{}, s.ihm.RemoveHandler(ctx, request.Tag) } func (s *handlerServer) AlterInbound(ctx context.Context, request *AlterInboundRequest) (*AlterInboundResponse, error) { rawOperation, err := request.Operation.GetInstance() if err != nil { return nil, newError("unknown operation").Base(err) } operation, ok := rawOperation.(InboundOperation) if !ok { return nil, newError("not an inbound operation") } handler, err := s.ihm.GetHandler(ctx, request.Tag) if err != nil { return nil, newError("failed to get handler: ", request.Tag).Base(err) } return &AlterInboundResponse{}, operation.ApplyInbound(ctx, handler) } func (s *handlerServer) AddOutbound(ctx context.Context, request *AddOutboundRequest) (*AddOutboundResponse, error) { if err := core.AddOutboundHandler(s.s, request.Outbound); err != nil { return nil, err } return &AddOutboundResponse{}, nil } func (s *handlerServer) RemoveOutbound(ctx context.Context, request *RemoveOutboundRequest) (*RemoveOutboundResponse, error) { return &RemoveOutboundResponse{}, s.ohm.RemoveHandler(ctx, request.Tag) } func (s *handlerServer) AlterOutbound(ctx context.Context, request *AlterOutboundRequest) (*AlterOutboundResponse, error) { rawOperation, err := request.Operation.GetInstance() if err != nil { return nil, newError("unknown operation").Base(err) } operation, ok := rawOperation.(OutboundOperation) if !ok { return nil, newError("not an outbound operation") } handler := s.ohm.GetHandler(request.Tag) return &AlterOutboundResponse{}, operation.ApplyOutbound(ctx, handler) } type service struct { v *core.Instance } func (s *service) Register(server *grpc.Server) { hs := &handlerServer{ s: s.v, } s.v.RequireFeatures(func(im inbound.Manager, om outbound.Manager) { hs.ihm = im hs.ohm = om }) RegisterHandlerServiceServer(server, hs) } func init() { common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, cfg interface{}) (interface{}, error) { s := core.MustFromContext(ctx) return &service{v: s}, nil })) }