Zabbix

<?php

/*

** 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/>.

**/

​

​

/**

 * Expression macros converter in event name field.

 */

class C52EventNameConverter extends C52TriggerExpressionConverter {

​

    public function __construct() {

        parent::__construct();

​

        $this->parser = new C10TriggerExpression(['host_macro' => ['{HOST.HOST}']]);

    }

​

    /**

     * Convert event name.

     *

     * @param string $event_name  Event name to convert.

     *

     * @return string

     */

    public function convert($event_name) {

        $expression_macros = $this->getExpressionMacros($event_name);

​

        krsort($expression_macros, SORT_NUMERIC);

​

        foreach ($expression_macros as $pos => $expression_macro) {

            if (($this->parser->parse(substr($expression_macro, 2, -1), 0)) !== CParser::PARSE_FAIL) {

                $functions = $this->parser->result->getTokensByType(

                    C10TriggerExprParserResult::TOKEN_TYPE_FUNCTION_MACRO

                );

​

                foreach (array_reverse($functions) as $function) {

                    if ($function['data']['host'] === '{HOST.HOST}' || $function['data']['host'] === '{HOST.HOST1}') {

                        $function['data']['host'] = '';

                    }

                    [$new_expr] = $this->convertFunction($function['data'], '', '');

                    $start = $pos + $function['pos'] + 2;

                    $event_name = substr_replace($event_name, $new_expr, $start, strlen($function['value']));

                }

            }

        }

​

        return $event_name;

    }

​

    /**

     * Extract expression macros with position in given string.

     *

     * @param string $value  The string to search in.