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64 lines
1.9 KiB
64 lines
1.9 KiB
<?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 comma separated string of geographical coordinates and zoom level.
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*
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* Valid token must match one of following formats:
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* - <latitude>,<longitude>,<zoom>
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* - <latitude>,<longitude>
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*/
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class CGeomapCoordinatesParser extends CParser {
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/**
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* @var array
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*/
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public $result;
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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, $pos = 0) {
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$this->length = 0;
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$this->match = '';
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$this->result = [];
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$regex = '/^(?P<latitude>-?\d+(\.\d+)?),\s*(?P<longitude>-?\d+(\.\d+)?)(,(?P<zoom>\d+))?$/';
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if (!preg_match($regex, substr($source, $pos), $matches)) {
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return self::PARSE_FAIL;
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}
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if ((float) $matches['latitude'] < GEOMAP_LAT_MIN || (float) $matches['latitude'] > GEOMAP_LAT_MAX
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|| (float) $matches['longitude'] < GEOMAP_LNG_MIN || (float) $matches['longitude'] > GEOMAP_LNG_MAX) {
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return self::PARSE_FAIL;
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}
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$this->match = $matches[0];
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$this->length = strlen($this->match);
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$this->result = array_intersect_key($matches, array_flip(['latitude', 'longitude', 'zoom']));
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return self::PARSE_SUCCESS;
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}
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}
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