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/*
** Zabbix
** Copyright (C) 2001-2020 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the envied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "common.h"
#include "log.h"
#include "zbxjson.h"
#include "zbxembed.h"
#include "embed.h"
#include "duktape.h"
#include "zabbix.h"
#define ZBX_ES_LOG_MEMORY_LIMIT (ZBX_MEBIBYTE * 8)
/******************************************************************************
* *
* Function: es_zabbix_dtor *
* *
* Purpose: Curlzabbix destructor *
* *
******************************************************************************/
static duk_ret_t es_zabbix_dtor(duk_context *ctx)
{
ZBX_UNUSED(ctx);
return 0;
}
/******************************************************************************
* *
* Function: es_zabbix_ctor *
* *
* Purpose: Curlzabbix 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;
}
/******************************************************************************
* *
* Function: es_zabbix_status *
* *
* Purpose: Curlzabbix.Status method *
* *
******************************************************************************/
static duk_ret_t es_zabbix_log(duk_context *ctx)
{
zbx_es_env_t *env;
const char *message;
int level;
duk_memory_functions out_funcs;
level = duk_to_int(ctx, 0);
message = duk_to_string(ctx, 1);
zabbix_log(level, "%s", message);
duk_get_memory_functions(ctx, &out_funcs);
env = (zbx_es_env_t *)out_funcs.udata;
if (NULL == env->json)
return 0;
zbx_json_addobject(env->json, NULL);
zbx_json_adduint64(env->json, "level", (zbx_uint64_t)level);
zbx_json_adduint64(env->json, "ms", zbx_get_duration(env->start_time));
zbx_json_addstring(env->json, "message", message, ZBX_JSON_TYPE_STRING);
zbx_json_close(env->json);
if (ZBX_ES_LOG_MEMORY_LIMIT < env->json->buffer_size) /* approximate limit */
{
return duk_error(ctx, DUK_RET_TYPE_ERROR, "log exceeds the maximum size " ZBX_FS_UI64 " bytes.",
ZBX_ES_LOG_MEMORY_LIMIT);
}
return 0;
}
static const duk_function_list_entry zabbix_methods[] = {
{"Log", es_zabbix_log, 2},
{NULL, NULL, 0}
};
static int es_zabbix_create_object(duk_context *ctx)
{
duk_push_c_function(ctx, es_zabbix_ctor, 0);
duk_push_object(ctx);
duk_put_function_list(ctx, -1, zabbix_methods);
if (1 != duk_put_prop_string(ctx, -2, "prototype"))
return FAIL;
duk_new(ctx, 0);
duk_put_global_string(ctx, "Zabbix");
return SUCCEED;
}
int zbx_es_init_zabbix(zbx_es_t *es, char **error)
{
if (0 != setjmp(es->env->loc))
{
*error = zbx_strdup(*error, es->env->error);
return FAIL;
}
if (FAIL == es_zabbix_create_object(es->env->ctx))
{
*error = zbx_strdup(*error, duk_safe_to_string(es->env->ctx, -1));
duk_pop(es->env->ctx);
return FAIL;
}
return SUCCEED;
}
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