Zabbix

<?php declare(strict_types = 0);

/*

** 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/>.

**/

​

​

/**

 * Class is used to parse comma separated string of geographical coordinates and zoom level.

 *

 * Valid token must match one of following formats:

 * - <latitude>,<longitude>,<zoom>

 * - <latitude>,<longitude>

 */

class CGeomapCoordinatesParser extends CParser {

​

    /**

     * @var array

     */

    public $result;

​

    /**

     * @param string $source

     * @param int    $pos

     *

     * @return int

     */

    public function parse($source, $pos = 0) {

        $this->length = 0;

        $this->match = '';

        $this->result = [];

​

        $regex = '/^(?P<latitude>-?\d+(\.\d+)?),\s*(?P<longitude>-?\d+(\.\d+)?)(,(?P<zoom>\d+))?$/';

        if (!preg_match($regex, substr($source, $pos), $matches)) {

            return self::PARSE_FAIL;

        }

​

        if ((float) $matches['latitude'] < GEOMAP_LAT_MIN || (float) $matches['latitude'] > GEOMAP_LAT_MAX

                || (float) $matches['longitude'] < GEOMAP_LNG_MIN || (float) $matches['longitude'] > GEOMAP_LNG_MAX) {

            return self::PARSE_FAIL;

        }

​

        $this->match = $matches[0];

        $this->length = strlen($this->match);

        $this->result = array_intersect_key($matches, array_flip(['latitude', 'longitude', 'zoom']));

​

        return self::PARSE_SUCCESS;

    }

}