mmtp.proto

syntax = "proto3";

message ApplicationMessage {
  ApplicationMessageHeader header = 1;
  bytes body = 2;
  bytes signature = 3;
}

message ApplicationMessageHeader {
  oneof SubjectOrRecipient {
    string subject = 1;
    Recipients recipients = 2;
  }
  int64 expires = 3;
  string sender = 4;
  optional string qosProfile = 5;
  uint32 bodySizeNumBytes = 6;
}

message Recipients {
  repeated string recipients = 1;
}

message MmtpMessage {
  MsgType msgType = 1;
  string uuid = 2;
  oneof body {
    ProtocolMessage protocolMessage = 3;
    ResponseMessage responseMessage = 4;
  }
}

enum MsgType {
  UNSPECIFIED_MESSAGE = 0;
  PROTOCOL_MESSAGE = 1;
  RESPONSE_MESSAGE = 2;
}

message ProtocolMessage {
  ProtocolMessageType protocolMsgType = 1;
  oneof body {
    Subscribe subscribeMessage = 2;
    Unsubscribe unsubscribeMessage = 3;
    Send sendMessage = 4;
    Receive receiveMessage = 5;
    Fetch fetchMessage = 6;
    Disconnect disconnectMessage = 7;
    Connect connectMessage = 8;
    Notify notifyMessage = 9;
  }
}

enum ProtocolMessageType {
  UNSPECIFIED = 0;
  SUBSCRIBE_MESSAGE = 1;
  UNSUBSCRIBE_MESSAGE = 2;
  SEND_MESSAGE = 3;
  RECEIVE_MESSAGE = 4;
  FETCH_MESSAGE = 5;
  DISCONNECT_MESSAGE = 6;
  CONNECT_MESSAGE = 7;
  NOTIFY_MESSAGE = 8;
}

message Subscribe {
  oneof subjectOrDirectMessages {
    string subject = 1;
    bool directMessages = 2;
  }
}

message Unsubscribe {
  oneof subjectOrDirectMessages {
    string subject = 1;
    bool directMessages = 2;
  }
}

message Send {
  ApplicationMessage applicationMessage = 1;
}

message Receive {
  optional Filter filter = 1;
}

message Filter {
  repeated string messageUuids = 1;
}

message Fetch {

}

message Disconnect {

}

message Connect {
  optional string ownMrn = 1;
  optional string reconnectToken = 2;
}

message Notify {
  repeated MessageMetadata messageMetadata = 1;
}

message ResponseMessage {
  string responseToUuid = 1;
  ResponseEnum response = 2;
  optional string reasonText = 3;
  repeated MessageMetadata messageMetadata = 4;
  repeated ApplicationMessage applicationMessages = 5;
  optional string reconnectToken = 6;
}

enum ResponseEnum {
  UNSPECIFIED_RESPONSE = 0;
  GOOD = 1;
  ERROR = 2;
}

message MessageMetadata {
  string uuid = 1;
  ApplicationMessageHeader header = 2;
}