<?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; } }