Nominatim/lib/ParameterParser.php

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<?php
namespace Nominatim;
class ParameterParser
{
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private $aParams;
public function __construct($aParams = null)
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{
$this->aParams = ($aParams === null) ? $_GET : $aParams;
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}
public function getBool($sName, $bDefault = false)
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{
if (!isset($this->aParams[$sName]) || strlen($this->aParams[$sName]) == 0) {
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return $bDefault;
}
return (bool) $this->aParams[$sName];
}
public function getInt($sName, $bDefault = false)
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{
if (!isset($this->aParams[$sName])) {
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return $bDefault;
}
if (!preg_match('/^[+-]?[0-9]+$/', $this->aParams[$sName])) {
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userError("Integer number expected for parameter '$sName'");
}
return (int) $this->aParams[$sName];
}
public function getFloat($sName, $bDefault = false)
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{
if (!isset($this->aParams[$sName])) {
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return $bDefault;
}
if (!preg_match('/^[+-]?[0-9]*\.?[0-9]+$/', $this->aParams[$sName])) {
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userError("Floating-point number expected for parameter '$sName'");
}
return (float) $this->aParams[$sName];
}
public function getString($sName, $bDefault = false)
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{
if (!isset($this->aParams[$sName]) || strlen($this->aParams[$sName]) == 0) {
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return $bDefault;
}
return $this->aParams[$sName];
}
public function getSet($sName, $aValues, $sDefault = false)
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{
if (!isset($this->aParams[$sName]) || strlen($this->aParams[$sName]) == 0) {
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return $sDefault;
}
if (!in_array($this->aParams[$sName], $aValues)) {
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userError("Parameter '$sName' must be one of: ".join(', ', $aValues));
}
return $this->aParams[$sName];
}
public function getStringList($sName, $aDefault = false)
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{
$sValue = $this->getString($sName);
if ($sValue) {
// removes all NULL, FALSE and Empty Strings but leaves 0 (zero) values
return array_values(array_filter(explode(',', $sValue), 'strlen'));
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}
return $aDefault;
}
public function getPreferredLanguages($sFallback = null)
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{
if ($sFallback === null && isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
$sFallback = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
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}
$aLanguages = array();
$sLangString = $this->getString('accept-language', $sFallback);
if ($sLangString) {
if (preg_match_all('/(([a-z]{1,8})([-_][a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $sLangString, $aLanguagesParse, PREG_SET_ORDER)) {
foreach ($aLanguagesParse as $iLang => $aLanguage) {
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$aLanguages[$aLanguage[1]] = isset($aLanguage[5])?(float)$aLanguage[5]:1 - ($iLang/100);
if (!isset($aLanguages[$aLanguage[2]])) $aLanguages[$aLanguage[2]] = $aLanguages[$aLanguage[1]]/10;
}
arsort($aLanguages);
}
}
if (empty($aLanguages) && CONST_Default_Language) {
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$aLanguages[CONST_Default_Language] = 1;
}
foreach ($aLanguages as $sLanguage => $fLanguagePref) {
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$aLangPrefOrder['short_name:'.$sLanguage] = 'short_name:'.$sLanguage;
$aLangPrefOrder['name:'.$sLanguage] = 'name:'.$sLanguage;
}
$aLangPrefOrder['short_name'] = 'short_name';
$aLangPrefOrder['name'] = 'name';
$aLangPrefOrder['brand'] = 'brand';
foreach ($aLanguages as $sLanguage => $fLanguagePref) {
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$aLangPrefOrder['official_name:'.$sLanguage] = 'official_name:'.$sLanguage;
}
$aLangPrefOrder['official_name'] = 'official_name';
$aLangPrefOrder['ref'] = 'ref';
$aLangPrefOrder['type'] = 'type';
return $aLangPrefOrder;
}
}