From 4d46adbb6819e74371858eac6b219808a2239ff0 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Zolt=C3=A1n=20Papp?= Date: Wed, 24 Sep 2025 14:34:01 +0200 Subject: [PATCH] Add wantDeliveryError option for signal proto --- client/internal/peer/conn.go | 2 +- client/internal/peer/signaler.go | 2 +- shared/signal/client/client.go | 1 + shared/signal/client/grpc.go | 17 ++ shared/signal/proto/signalexchange.pb.go | 149 ++++++++++-------- shared/signal/proto/signalexchange.proto | 2 + shared/signal/proto/signalexchange_grpc.pb.go | 37 +++++ signal/server/signal.go | 16 +- 8 files changed, 153 insertions(+), 73 deletions(-) diff --git a/client/internal/peer/conn.go b/client/internal/peer/conn.go index fe3f16791..37a54d1da 100644 --- a/client/internal/peer/conn.go +++ b/client/internal/peer/conn.go @@ -208,8 +208,8 @@ func (conn *Conn) Open(engineCtx context.Context) error { // both peer send offer if err := conn.handshaker.SendOffer(); err != nil { - conn.guard.FailedToSendOffer() conn.Log.Errorf("failed to send offer: %v", err) + conn.guard.FailedToSendOffer() } conn.opened = true diff --git a/client/internal/peer/signaler.go b/client/internal/peer/signaler.go index b28906625..d3e892a0a 100644 --- a/client/internal/peer/signaler.go +++ b/client/internal/peer/signaler.go @@ -67,7 +67,7 @@ func (s *Signaler) signalOfferAnswer(offerAnswer OfferAnswer, remoteKey string, return err } - if err = s.signal.Send(msg); err != nil { + if err = s.signal.SendWithDeliveryCheck(msg); err != nil { return err } diff --git a/shared/signal/client/client.go b/shared/signal/client/client.go index 5347c80e9..7ea27900c 100644 --- a/shared/signal/client/client.go +++ b/shared/signal/client/client.go @@ -35,6 +35,7 @@ type Client interface { WaitStreamConnected() SendToStream(msg *proto.EncryptedMessage) error Send(msg *proto.Message) error + SendWithDeliveryCheck(msg *proto.Message) error SetOnReconnectedListener(func()) } diff --git a/shared/signal/client/grpc.go b/shared/signal/client/grpc.go index 5ca0c0282..3909af5ca 100644 --- a/shared/signal/client/grpc.go +++ b/shared/signal/client/grpc.go @@ -396,6 +396,23 @@ func (c *GrpcClient) Send(msg *proto.Message) error { return err } +func (c *GrpcClient) SendWithDeliveryCheck(msg *proto.Message) error { + if !c.Ready() { + return fmt.Errorf("no connection to signal") + } + + encryptedMessage, err := c.encryptMessage(msg) + if err != nil { + return err + } + + ctx, cancel := context.WithTimeout(c.ctx, client.ConnectTimeout) + defer cancel() + + _, err = c.realClient.SendWithDeliveryCheck(ctx, encryptedMessage) + return err +} + // receive receives messages from other peers coming through the Signal Exchange // and distributes them to worker threads for processing func (c *GrpcClient) receive(stream proto.SignalExchange_ConnectStreamClient) error { diff --git a/shared/signal/proto/signalexchange.pb.go b/shared/signal/proto/signalexchange.pb.go index d9c61a846..d70eba3b4 100644 --- a/shared/signal/proto/signalexchange.pb.go +++ b/shared/signal/proto/signalexchange.pb.go @@ -10,6 +10,7 @@ import ( protoreflect "google.golang.org/protobuf/reflect/protoreflect" protoimpl "google.golang.org/protobuf/runtime/protoimpl" _ "google.golang.org/protobuf/types/descriptorpb" + emptypb "google.golang.org/protobuf/types/known/emptypb" reflect "reflect" sync "sync" ) @@ -439,72 +440,79 @@ var file_signalexchange_proto_rawDesc = []byte{ 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x0e, 0x73, 0x69, 0x67, 0x6e, 0x61, 0x6c, 0x65, 0x78, 0x63, 0x68, 0x61, 0x6e, 0x67, 0x65, 0x1a, 0x20, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x75, 0x66, 0x2f, 0x64, 0x65, 0x73, 0x63, 0x72, 0x69, 0x70, 0x74, - 0x6f, 0x72, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0x56, 0x0a, 0x10, 0x45, 0x6e, 0x63, 0x72, - 0x79, 0x70, 0x74, 0x65, 0x64, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x10, 0x0a, 0x03, - 0x6b, 0x65, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x03, 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0x42, 0x08, 0x5a, 0x06, 0x2f, 0x70, 0x72, + 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33, } var ( @@ -528,6 +536,7 @@ var file_signalexchange_proto_goTypes = []interface{}{ (*Body)(nil), // 3: signalexchange.Body (*Mode)(nil), // 4: signalexchange.Mode (*RosenpassConfig)(nil), // 5: signalexchange.RosenpassConfig + (*emptypb.Empty)(nil), // 6: google.protobuf.Empty } var file_signalexchange_proto_depIdxs = []int32{ 3, // 0: signalexchange.Message.body:type_name -> signalexchange.Body @@ -535,11 +544,13 @@ var file_signalexchange_proto_depIdxs = []int32{ 4, // 2: signalexchange.Body.mode:type_name -> signalexchange.Mode 5, // 3: signalexchange.Body.rosenpassConfig:type_name -> signalexchange.RosenpassConfig 1, // 4: signalexchange.SignalExchange.Send:input_type -> signalexchange.EncryptedMessage - 1, // 5: signalexchange.SignalExchange.ConnectStream:input_type -> signalexchange.EncryptedMessage - 1, // 6: signalexchange.SignalExchange.Send:output_type -> signalexchange.EncryptedMessage - 1, // 7: signalexchange.SignalExchange.ConnectStream:output_type -> signalexchange.EncryptedMessage - 6, // [6:8] is the sub-list for method output_type - 4, // [4:6] is the sub-list for method input_type + 1, // 5: signalexchange.SignalExchange.SendWithDeliveryCheck:input_type -> signalexchange.EncryptedMessage + 1, // 6: signalexchange.SignalExchange.ConnectStream:input_type -> signalexchange.EncryptedMessage + 1, // 7: signalexchange.SignalExchange.Send:output_type -> signalexchange.EncryptedMessage + 6, // 8: signalexchange.SignalExchange.SendWithDeliveryCheck:output_type -> google.protobuf.Empty + 1, // 9: signalexchange.SignalExchange.ConnectStream:output_type -> signalexchange.EncryptedMessage + 7, // [7:10] is the sub-list for method output_type + 4, // [4:7] is the sub-list for method input_type 4, // [4:4] is the sub-list for extension type_name 4, // [4:4] is the sub-list for extension extendee 0, // [0:4] is the sub-list for field type_name diff --git a/shared/signal/proto/signalexchange.proto b/shared/signal/proto/signalexchange.proto index 0a33ad78b..b20156cba 100644 --- a/shared/signal/proto/signalexchange.proto +++ b/shared/signal/proto/signalexchange.proto @@ -1,6 +1,7 @@ syntax = "proto3"; import "google/protobuf/descriptor.proto"; +import "google/protobuf/empty.proto"; option go_package = "/proto"; @@ -9,6 +10,7 @@ package signalexchange; service SignalExchange { // Synchronously connect to the Signal Exchange service offering connection candidates and waiting for connection candidates from the other party (remote peer) rpc Send(EncryptedMessage) returns (EncryptedMessage) {} + rpc SendWithDeliveryCheck(EncryptedMessage) returns (google.protobuf.Empty) {} // Connect to the Signal Exchange service offering connection candidates and maintain a channel for receiving candidates from the other party (remote peer) rpc ConnectStream(stream EncryptedMessage) returns (stream EncryptedMessage) {} } diff --git a/shared/signal/proto/signalexchange_grpc.pb.go b/shared/signal/proto/signalexchange_grpc.pb.go index 238cd14e2..1c9945dd0 100644 --- a/shared/signal/proto/signalexchange_grpc.pb.go +++ b/shared/signal/proto/signalexchange_grpc.pb.go @@ -7,6 +7,7 @@ import ( grpc "google.golang.org/grpc" codes "google.golang.org/grpc/codes" status "google.golang.org/grpc/status" + emptypb "google.golang.org/protobuf/types/known/emptypb" ) // This is a compile-time assertion to ensure that this generated file @@ -20,6 +21,7 @@ const _ = grpc.SupportPackageIsVersion7 type SignalExchangeClient interface { // Synchronously connect to the Signal Exchange service offering connection candidates and waiting for connection candidates from the other party (remote peer) Send(ctx context.Context, in *EncryptedMessage, opts ...grpc.CallOption) (*EncryptedMessage, error) + SendWithDeliveryCheck(ctx context.Context, in *EncryptedMessage, opts ...grpc.CallOption) (*emptypb.Empty, error) // Connect to the Signal Exchange service offering connection candidates and maintain a channel for receiving candidates from the other party (remote peer) ConnectStream(ctx context.Context, opts ...grpc.CallOption) (SignalExchange_ConnectStreamClient, error) } @@ -41,6 +43,15 @@ func (c *signalExchangeClient) Send(ctx context.Context, in *EncryptedMessage, o return out, nil } +func (c *signalExchangeClient) SendWithDeliveryCheck(ctx context.Context, in *EncryptedMessage, opts ...grpc.CallOption) (*emptypb.Empty, error) { + out := new(emptypb.Empty) + err := c.cc.Invoke(ctx, "/signalexchange.SignalExchange/SendWithDeliveryCheck", in, out, opts...) + if err != nil { + return nil, err + } + return out, nil +} + func (c *signalExchangeClient) ConnectStream(ctx context.Context, opts ...grpc.CallOption) (SignalExchange_ConnectStreamClient, error) { stream, err := c.cc.NewStream(ctx, &SignalExchange_ServiceDesc.Streams[0], "/signalexchange.SignalExchange/ConnectStream", opts...) if err != nil { @@ -78,6 +89,7 @@ func (x *signalExchangeConnectStreamClient) Recv() (*EncryptedMessage, error) { type SignalExchangeServer interface { // Synchronously connect to the Signal Exchange service offering connection candidates and waiting for connection candidates from the other party (remote peer) Send(context.Context, *EncryptedMessage) (*EncryptedMessage, error) + SendWithDeliveryCheck(context.Context, *EncryptedMessage) (*emptypb.Empty, error) // Connect to the Signal Exchange service offering connection candidates and maintain a channel for receiving candidates from the other party (remote peer) ConnectStream(SignalExchange_ConnectStreamServer) error mustEmbedUnimplementedSignalExchangeServer() @@ -90,6 +102,9 @@ type UnimplementedSignalExchangeServer struct { func (UnimplementedSignalExchangeServer) Send(context.Context, *EncryptedMessage) (*EncryptedMessage, error) { return nil, status.Errorf(codes.Unimplemented, "method Send not implemented") } +func (UnimplementedSignalExchangeServer) SendWithDeliveryCheck(context.Context, *EncryptedMessage) (*emptypb.Empty, error) { + return nil, status.Errorf(codes.Unimplemented, "method SendWithDeliveryCheck not implemented") +} func (UnimplementedSignalExchangeServer) ConnectStream(SignalExchange_ConnectStreamServer) error { return status.Errorf(codes.Unimplemented, "method ConnectStream not implemented") } @@ -124,6 +139,24 @@ func _SignalExchange_Send_Handler(srv interface{}, ctx context.Context, dec func return interceptor(ctx, in, info, handler) } +func _SignalExchange_SendWithDeliveryCheck_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) { + in := new(EncryptedMessage) + if err := dec(in); err != nil { + return nil, err + } + if interceptor == nil { + return srv.(SignalExchangeServer).SendWithDeliveryCheck(ctx, in) + } + info := &grpc.UnaryServerInfo{ + Server: srv, + FullMethod: "/signalexchange.SignalExchange/SendWithDeliveryCheck", + } + handler := func(ctx context.Context, req interface{}) (interface{}, error) { + return srv.(SignalExchangeServer).SendWithDeliveryCheck(ctx, req.(*EncryptedMessage)) + } + return interceptor(ctx, in, info, handler) +} + func _SignalExchange_ConnectStream_Handler(srv interface{}, stream grpc.ServerStream) error { return srv.(SignalExchangeServer).ConnectStream(&signalExchangeConnectStreamServer{stream}) } @@ -161,6 +194,10 @@ var SignalExchange_ServiceDesc = grpc.ServiceDesc{ MethodName: "Send", Handler: _SignalExchange_Send_Handler, }, + { + MethodName: "SendWithDeliveryCheck", + Handler: _SignalExchange_SendWithDeliveryCheck_Handler, + }, }, Streams: []grpc.StreamDesc{ { diff --git a/signal/server/signal.go b/signal/server/signal.go index 8881a9771..4ab57666f 100644 --- a/signal/server/signal.go +++ b/signal/server/signal.go @@ -14,6 +14,7 @@ import ( "google.golang.org/grpc/metadata" "google.golang.org/grpc/status" gproto "google.golang.org/protobuf/proto" + "google.golang.org/protobuf/types/known/emptypb" "github.com/netbirdio/signal-dispatcher/dispatcher" @@ -100,9 +101,20 @@ func (s *Server) Send(ctx context.Context, msg *proto.EncryptedMessage) (*proto. return &proto.EncryptedMessage{}, nil } - return nil, status.Errorf(codes.FailedPrecondition, "remote peer not connected") + return s.dispatcher.SendMessage(ctx, msg) +} - // todo handle dispatcher errors +// SendWithDeliveryCheck forwards a message to the signal peer with error handling +func (s *Server) SendWithDeliveryCheck(ctx context.Context, msg *proto.EncryptedMessage) (*emptypb.Empty, error) { + log.Tracef("received a new message to send from peer [%s] to peer [%s]", msg.Key, msg.RemoteKey) + + if _, found := s.registry.Get(msg.RemoteKey); found { + // todo error handling here too + s.forwardMessageToPeer(ctx, msg) + return &emptypb.Empty{}, nil + } + + return nil, status.Errorf(codes.FailedPrecondition, "remote peer not connected") //return s.dispatcher.SendMessage(ctx, msg) }