syntax = "proto3";
package api;
import "google/protobuf/empty.proto";

service User{
  rpc Login(LoginBody) returns (LoginReply);
}

message LoginBody {
  string token = 1;
}

message LoginReply {
  string session_id = 1;
  string username = 2;
}

service Tunnel {
  rpc Listen(ListenParam) returns (stream ListenNotification);
  rpc Transfer(stream TransferBody) returns (stream TransferReply);
}

enum Protocol{
  HTTP = 0;
  TCP = 1;
  //  UDP = 2;
}

message ListenParam{
  Protocol protocol = 1;
  string subdomain = 2;
}

message ListenNotification{
  string action = 1;
  string message = 2;
}

enum TStatus {
  Ready = 0;
  Working = 1;
  Done = 2;
}

message TransferBody {
  string conn_id = 1;
  TStatus status = 2;
  bytes resp_data = 3;
}

message TransferReply{
  string conn_id = 1;
  bytes req_data = 2;
}