/*
 * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2.0,
 * as published by the Free Software Foundation.
 *
 * This program is also distributed with certain software (including
 * but not limited to OpenSSL) that is licensed under separate terms,
 * as designated in a particular file or component or in included license
 * documentation.  The authors of MySQL hereby grant you an additional
 * permission to link the program and your derivative works with the
 * separately licensed software that they have included with MySQL.
 *  
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License, version 2.0, for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
 */
syntax = "proto2";

import "mysqlx.proto"; // comment_out_if PROTOBUF_LITE

// ifdef PROTOBUF_LITE: option optimize_for = LITE_RUNTIME;

// Messages to manage Sessions
//
// .. uml::
//
//   == session start ==
//   Client -> Server: AuthenticateStart
//   opt
//   Server --> Client: AuthenticateContinue
//   Client --> Server: AuthenticateContinue
//   end
//   alt
//   Server --> Client: AuthenticateOk
//   else
//   Server --> Client: Error
//   end
//   ...
//   == session reset ==
//   Client -> Server: Reset
//   Server --> Client: Ok
//   == session end ==
//   Client -> Server: Close
//   Server --> Client: Ok
//
package Mysqlx.Session;
option java_package = "com.mysql.cj.x.protobuf";

// the initial message send from the client to the server to start the
// authentication proccess
//
// :param mech_name: authentication mechanism name
// :param auth_data: authentication data
// :param initial_response: initial response
// :Returns: :protobuf:msg:`Mysqlx.Session::AuthenticateContinue`
message AuthenticateStart {
  required string mech_name = 1;
  optional bytes auth_data = 2;
  optional bytes initial_response = 3;

  option (client_message_id) = SESS_AUTHENTICATE_START; // comment_out_if PROTOBUF_LITE
}

// send by client or server after a :protobuf:msg:`Mysqlx.Session::AuthenticateStart` to
// exchange more auth data
//
// :param auth_data: authentication data
// :Returns: :protobuf:msg:`Mysqlx.Session::AuthenticateContinue`
message AuthenticateContinue {
  required bytes auth_data = 1;

  option (server_message_id) = SESS_AUTHENTICATE_CONTINUE; // comment_out_if PROTOBUF_LITE
  option (client_message_id) = SESS_AUTHENTICATE_CONTINUE; // comment_out_if PROTOBUF_LITE
}

// sent by the server after successful authentication
//
// :param auth_data: authentication data
message AuthenticateOk {
  optional bytes auth_data = 1;

  option (server_message_id) = SESS_AUTHENTICATE_OK; // comment_out_if PROTOBUF_LITE
}

// reset the current session
// param keep_open: if is true the session will be reset, but stays authenticated.
//       otherwise, the session will be closed and needs to be authenticated again.
//
// :Returns: :protobuf:msg:`Mysqlx::Ok`
message Reset {
  optional bool keep_open = 1 [ default = false ];

  option (client_message_id) = SESS_RESET; // comment_out_if PROTOBUF_LITE
}

// close the current session
//
// :Returns: :protobuf:msg:`Mysqlx::Ok`
message Close {
  option (client_message_id) = SESS_CLOSE; // comment_out_if PROTOBUF_LITE
}