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135 lines
3.3 KiB
135 lines
3.3 KiB
1 year ago
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<?php declare(strict_types = 0);
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/*
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** Zabbix
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** Copyright (C) 2001-2023 Zabbix SIA
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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/**
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* Class is used to parse <sec|#num>:<time_shift> trigger parameter.
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*/
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class CPeriodParser extends CParser {
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private $simple_interval_parser;
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private $relative_time_parser;
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/**
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* An options array.
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*
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* Supported options:
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* 'usermacros' => false Enable user macros usage in the periods.
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* 'lldmacros' => false Enable low-level discovery macros usage in the periods.
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*
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* @var array
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*/
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protected $options = [
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'usermacros' => false,
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'lldmacros' => false
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];
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/**
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* @var string
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*/
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private $sec_num = '';
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/**
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* @var string
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*/
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private $timeshift = '';
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/**
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* @param array $options
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* @param bool $options['lldmacros']
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*/
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public function __construct(array $options) {
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$this->options = $options + $this->options;
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$this->simple_interval_parser = new CSimpleIntervalParser([
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'usermacros' => $this->options['usermacros'],
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'lldmacros' => $this->options['lldmacros'],
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'with_year' => true
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]);
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$this->relative_time_parser = new CRelativeTimeParser([
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'usermacros' => $this->options['usermacros'],
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'lldmacros' => $this->options['lldmacros']
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]);
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}
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/**
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* Parse period.
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*
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* @param string $source
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* @param int $pos
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*
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* @return int
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*/
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public function parse($source, $pos = 0): int {
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$this->match = '';
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$this->length = 0;
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$this->sec_num = '';
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$this->timeshift = '';
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$p = $pos;
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$sec_num = '';
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$timeshift = '';
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if (preg_match('/^#[0-9]+/', substr($source, $p), $matches)) {
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$sec_num = $matches[0];
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$p += strlen($matches[0]);
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}
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elseif ($this->simple_interval_parser->parse($source, $p) !== self::PARSE_FAIL) {
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$sec_num = $this->simple_interval_parser->match;
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$p += $this->simple_interval_parser->length;
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}
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else {
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return self::PARSE_FAIL;
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}
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if (isset($source[$p]) && $source[$p] === ':') {
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if ($this->relative_time_parser->parse($source, $p + 1) !== self::PARSE_FAIL) {
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$timeshift = $this->relative_time_parser->match;
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$p += $this->relative_time_parser->length + 1;
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}
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}
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$this->length = $p - $pos;
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$this->match = substr($source, $pos, $this->length);
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$this->sec_num = $sec_num;
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$this->timeshift = $timeshift;
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return isset($source[$p]) ? self::PARSE_SUCCESS_CONT : self::PARSE_SUCCESS;
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}
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/**
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* Returns the first part of the period.
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*
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* @return string
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*/
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public function getSecNum(): string {
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return $this->sec_num;
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}
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/**
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* Returns the second part of the period.
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*
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* @return string
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*/
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public function getTimeshift(): string {
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return $this->timeshift;
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}
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}
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