Zabbix

/*

** Copyright (C) 2001-2025 Zabbix SIA

**

** This program is free software: you can redistribute it and/or modify it under the terms of

** the GNU Affero General Public License as published by the Free Software Foundation, version 3.

**

** 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 Affero General Public License for more details.

**

** You should have received a copy of the GNU Affero General Public License along with this program.

** If not, see <https://www.gnu.org/licenses/>.

**/

​

#include "zabbix.h"

#include "embed.h"

​

#include "zbxstr.h"

#include "zbxjson.h"

#include "duktape.h"

​

/******************************************************************************

 *                                                                            *

 * Purpose: Zabbix destructor                                                 *

 *                                                                            *

 ******************************************************************************/

static duk_ret_t    es_zabbix_dtor(duk_context *ctx)

{

    ZBX_UNUSED(ctx);

​

    return 0;

}

​

/******************************************************************************

 *                                                                            *

 * Purpose: Zabbix constructor                                                *

 *                                                                            *

 ******************************************************************************/

static duk_ret_t    es_zabbix_ctor(duk_context *ctx)

{

    if (!duk_is_constructor_call(ctx))

        return DUK_RET_TYPE_ERROR;

​

    duk_push_this(ctx);

​

    duk_push_c_function(ctx, es_zabbix_dtor, 1);

    duk_set_finalizer(ctx, -2);

​

    return 0;

}

​

/******************************************************************************

 *                                                                            *

 * Purpose: Zabbix.Status method                                              *

 *                                                                            *

 ******************************************************************************/

static duk_ret_t    es_zabbix_log(duk_context *ctx)

{

    zbx_es_env_t        *env;

    char            *message = NULL;

    int         level, err_index = -1;

    duk_memory_functions    out_funcs;

​

    level = duk_to_int(ctx, 0);

​

    if (SUCCEED != es_duktape_string_decode(duk_safe_to_string(ctx, 1), &message))

    {

        message = zbx_strdup(message, duk_safe_to_string(ctx, 1));

        zbx_replace_invalid_utf8(message);

    }

​

    duk_get_memory_functions(ctx, &out_funcs);

    env = (zbx_es_env_t *)out_funcs.udata;

​

    if (ZBX_ES_LOG_MSG_LIMIT <= env->logged_msgs)

    {

        err_index = duk_push_error_object(ctx, DUK_RET_EVAL_ERROR,

                "maximum count of logged messages was reached");

        goto out;

    }

​

    zabbix_log(level, "%s", message);

​

    if (NULL == env->json)

        goto out;

​

    if (ZBX_ES_LOG_MEMORY_LIMIT < env->json->buffer_size)   /* approximate limit */

    {

        err_index = duk_push_error_object(ctx, DUK_RET_EVAL_ERROR, "log exceeds the maximum size of "

                ZBX_FS_UI64 " bytes.", ZBX_ES_LOG_MEMORY_LIMIT);

        goto out;