/* Copyright (c) 2013-2018 Dovecot authors, see the included COPYING file */

#include "lib.h"

#include "smtp-syntax.h"

#include "smtp-server-private.h"

/* NOOP command */

void smtp_server_cmd_noop(struct smtp_server_cmd_ctx *cmd,

        const char *params)

{

  struct smtp_server_connection *conn = cmd->conn;

  struct smtp_server_command *command = cmd->cmd;

  const struct smtp_server_callbacks *callbacks = conn->callbacks;

  const char *param, *error;

  int ret;

  /* "NOOP" [ SP String ] CRLF */

  ret = smtp_string_parse(params, &param, &error);

  if (ret < 0) {

    smtp_server_reply(cmd, 501, "5.5.4",

          "Invalid string parameter: %s",

          error);

    return;

  }

  smtp_server_command_input_lock(cmd);

  smtp_server_command_ref(command);

  if (callbacks != NULL && callbacks->conn_cmd_noop != NULL) {

    /* specific implementation of NOOP command */

    ret = callbacks->conn_cmd_noop(conn->context, cmd);

    if (ret <= 0) {

      i_assert(ret == 0 ||

         smtp_server_command_is_replied(command));

      /* command is waiting for external event or it failed */

      smtp_server_command_unref(&command);

      return;

    }

  }

  if (!smtp_server_command_is_replied(command))

    smtp_server_cmd_noop_reply_success(cmd);

  smtp_server_command_unref(&command);

}

void smtp_server_cmd_noop_reply_success(struct smtp_server_cmd_ctx *cmd)

{

       i_assert(cmd->cmd->reg->func == smtp_server_cmd_noop);

       smtp_server_reply(cmd, 250, "2.0.0", "OK");

}