Nominatim/lib-php/lib.php
2022-07-20 22:05:31 +08:00

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<?php
/**
* SPDX-License-Identifier: GPL-2.0-only
*
* This file is part of Nominatim. (https://nominatim.org)
*
* Copyright (C) 2022 by the Nominatim developer community.
* For a full list of authors see the git log.
*/
function loadSettings($sProjectDir)
{
@define('CONST_InstallDir', $sProjectDir);
// Temporary hack to set the directory via environment instead of
// the installed scripts. Neither setting is part of the official
// set of settings.
defined('CONST_ConfigDir') or define('CONST_ConfigDir', $_SERVER['NOMINATIM_CONFIGDIR']);
}
function getSetting($sConfName, $sDefault = null)
{
$sValue = $_SERVER['NOMINATIM_'.$sConfName];
if ($sDefault !== null && !$sValue) {
return $sDefault;
}
return $sValue;
}
function getSettingBool($sConfName)
{
$sVal = strtolower(getSetting($sConfName));
return strcmp($sVal, 'yes') == 0
|| strcmp($sVal, 'true') == 0
|| strcmp($sVal, '1') == 0;
}
function fail($sError, $sUserError = false)
{
if (!$sUserError) {
$sUserError = $sError;
}
error_log('ERROR: '.$sError);
var_dump($sUserError);
echo "\n";
exit(-1);
}
function getProcessorCount()
{
$sCPU = file_get_contents('/proc/cpuinfo');
preg_match_all('#processor\s+: [0-9]+#', $sCPU, $aMatches);
return count($aMatches[0]);
}
function getTotalMemoryMB()
{
$sCPU = file_get_contents('/proc/meminfo');
preg_match('#MemTotal: +([0-9]+) kB#', $sCPU, $aMatches);
return (int)($aMatches[1]/1024);
}
function getCacheMemoryMB()
{
$sCPU = file_get_contents('/proc/meminfo');
preg_match('#Cached: +([0-9]+) kB#', $sCPU, $aMatches);
return (int)($aMatches[1]/1024);
}
function getDatabaseDate(&$oDB)
{
// Find the newest node in the DB
$iLastOSMID = $oDB->getOne("select max(osm_id) from place where osm_type = 'N'");
// Lookup the timestamp that node was created
$sLastNodeURL = 'https://www.openstreetmap.org/api/0.6/node/'.$iLastOSMID.'/1';
$sLastNodeXML = file_get_contents($sLastNodeURL);
if ($sLastNodeXML === false) {
return false;
}
preg_match('#timestamp="(([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})Z)"#', $sLastNodeXML, $aLastNodeDate);
return $aLastNodeDate[1];
}
function byImportance($a, $b)
{
if ($a['importance'] != $b['importance']) {
return ($a['importance'] > $b['importance']?-1:1);
}
return $a['foundorder'] <=> $b['foundorder'];
}
function javascript_renderData($xVal, $iOptions = 0)
{
$sCallback = isset($_GET['json_callback']) ? $_GET['json_callback'] : '';
if ($sCallback && !preg_match('/^[$_\p{L}][$_\p{L}\p{Nd}.[\]]*$/u', $sCallback)) {
// Unset, we call javascript_renderData again during exception handling
unset($_GET['json_callback']);
throw new Exception('Invalid json_callback value', 400);
}
$iOptions |= JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES;
if (isset($_GET['pretty']) && in_array(strtolower($_GET['pretty']), array('1', 'true'))) {
$iOptions |= JSON_PRETTY_PRINT;
}
$jsonout = json_encode($xVal, $iOptions);
if ($sCallback) {
header('Content-Type: application/javascript; charset=UTF-8');
echo $_GET['json_callback'].'('.$jsonout.')';
} else {
header('Content-Type: application/json; charset=UTF-8');
echo $jsonout;
}
}
function addQuotes($s)
{
return "'".$s."'";
}
function parseLatLon($sQuery)
{
$sFound = null;
$fQueryLat = null;
$fQueryLon = null;
if (preg_match('/\\s*([NS])[\s]+([0-9]+[0-9.]*)[°\s]+([0-9.]+)?[\']*[,\s]+([EW])[\s]+([0-9]+)[°\s]+([0-9]+[0-9.]*)[\']*\\s*/', $sQuery, $aData)) {
/* 1 2 3 4 5 6
* degrees decimal minutes
* N 40 26.767, W 79 58.933
* N 40°26.767, W 79°58.933
*/
$sFound = $aData[0];
$fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60);
$fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[5] + $aData[6]/60);
} elseif (preg_match('/\\s*([0-9]+)[°\s]+([0-9]+[0-9.]*)?[\']*[\s]+([NS])[,\s]+([0-9]+)[°\s]+([0-9]+[0-9.]*)?[\'\s]+([EW])\\s*/', $sQuery, $aData)) {
/* 1 2 3 4 5 6
* degrees decimal minutes
* 40 26.767 N, 79 58.933 W
* 40° 26.767 N 79° 58.933 W
*/
$sFound = $aData[0];
$fQueryLat = ($aData[3]=='N'?1:-1) * ($aData[1] + $aData[2]/60);
$fQueryLon = ($aData[6]=='E'?1:-1) * ($aData[4] + $aData[5]/60);
} elseif (preg_match('/\\s*([NS])[\s]+([0-9]+)[°\s]+([0-9]+)[\'\s]+([0-9]+)[″"]*[,\s]+([EW])[\s]+([0-9]+)[°\s]+([0-9]+)[\'\s]+([0-9]+)[″"]*\\s*/', $sQuery, $aData)) {
/* 1 2 3 4 5 6 7 8
* degrees decimal seconds
* N 40 26 46 W 79 58 56
* N 40° 26 46″, W 79° 58 56″
*/
$sFound = $aData[0];
$fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2] + $aData[3]/60 + $aData[4]/3600);
$fQueryLon = ($aData[5]=='E'?1:-1) * ($aData[6] + $aData[7]/60 + $aData[8]/3600);
} elseif (preg_match('/\\s*([0-9]+)[°\s]+([0-9]+)[\'\s]+([0-9]+[0-9.]*)[″"\s]+([NS])[,\s]+([0-9]+)[°\s]+([0-9]+)[\'\s]+([0-9]+[0-9.]*)[″"\s]+([EW])\\s*/', $sQuery, $aData)) {
/* 1 2 3 4 5 6 7 8
* degrees decimal seconds
* 40 26 46 N 79 58 56 W
* 40° 26 46″ N, 79° 58 56″ W
* 40° 26 46.78″ N, 79° 58 56.89″ W
*/
$sFound = $aData[0];
$fQueryLat = ($aData[4]=='N'?1:-1) * ($aData[1] + $aData[2]/60 + $aData[3]/3600);
$fQueryLon = ($aData[8]=='E'?1:-1) * ($aData[5] + $aData[6]/60 + $aData[7]/3600);
} elseif (preg_match('/\\s*([NS])[\s]+([0-9]+[0-9]*\\.[0-9]+)[°]*[,\s]+([EW])[\s]+([0-9]+[0-9]*\\.[0-9]+)[°]*\\s*/', $sQuery, $aData)) {
/* 1 2 3 4
* degrees decimal
* N 40.446° W 79.982°
*/
$sFound = $aData[0];
$fQueryLat = ($aData[1]=='N'?1:-1) * ($aData[2]);
$fQueryLon = ($aData[3]=='E'?1:-1) * ($aData[4]);
} elseif (preg_match('/\\s*([0-9]+[0-9]*\\.[0-9]+)[°\s]+([NS])[,\s]+([0-9]+[0-9]*\\.[0-9]+)[°\s]+([EW])\\s*/', $sQuery, $aData)) {
/* 1 2 3 4
* degrees decimal
* 40.446° N 79.982° W
*/
$sFound = $aData[0];
$fQueryLat = ($aData[2]=='N'?1:-1) * ($aData[1]);
$fQueryLon = ($aData[4]=='E'?1:-1) * ($aData[3]);
} elseif (preg_match('/(\\s*\\[|^\\s*|\\s*)(-?[0-9]+[0-9]*\\.[0-9]+)[,\s]+(-?[0-9]+[0-9]*\\.[0-9]+)(\\]\\s*|\\s*$|\\s*)/', $sQuery, $aData)) {
/* 1 2 3 4
* degrees decimal
* 12.34, 56.78
* 12.34 56.78
* [12.456,-78.90]
*/
$sFound = $aData[0];
$fQueryLat = $aData[2];
$fQueryLon = $aData[3];
} else {
return false;
}
return array($sFound, $fQueryLat, $fQueryLon);
}
function addressRankToGeocodeJsonType($iAddressRank)
{
if ($iAddressRank >= 29 && $iAddressRank <= 30) {
return 'house';
}
if ($iAddressRank >= 26 && $iAddressRank < 28) {
return 'street';
}
if ($iAddressRank >= 22 && $iAddressRank < 26) {
return 'locality';
}
if ($iAddressRank >= 17 && $iAddressRank < 22) {
return 'district';
}
if ($iAddressRank >= 13 && $iAddressRank < 17) {
return 'city';
}
if ($iAddressRank >= 10 && $iAddressRank < 13) {
return 'county';
}
if ($iAddressRank >= 5 && $iAddressRank < 10) {
return 'state';
}
if ($iAddressRank >= 4 && $iAddressRank < 5) {
return 'country';
}
return 'locality';
}
if (!function_exists('array_key_last')) {
function array_key_last(array $array)
{
if (!empty($array)) {
return key(array_slice($array, -1, 1, true));
}
}
}