/**
* For better privacy we store only the main language code, instead of the whole browser language string.
*
* @param $acceptLanguagesString
* @return string
*/
protected function getSingleLanguageFromAcceptedLanguages($acceptLanguagesString)
{
if (empty($acceptLanguagesString)) {
return '';
}
$languageCode = Common::extractLanguageAndRegionCodeFromBrowserLanguage($acceptLanguagesString);
return $languageCode;
}
/**
* Returns the last IP address in a comma separated list, subject to an optional exclusion list.
*
* @param string $csv Comma separated list of elements.
* @param array $excludedIps Optional list of excluded IP addresses (or IP address ranges).
* @return string Last (non-excluded) IP address in the list or an empty string if all given IPs are excluded.
*/
public static function getLastIpFromList($csv, $excludedIps = null)
{
$p = strrpos($csv, ',');
if ($p !== false) {
$elements = explode(',', $csv);
for ($i = count($elements); $i--;) {
$element = trim(Common::sanitizeInputValue($elements[$i]));
$ip = \Piwik\Network\IP::fromStringIP(IPUtils::sanitizeIp($element));
if (empty($excludedIps) || !in_array($element, $excludedIps) && !$ip->isInRanges($excludedIps)) {
return $element;
}
}
return '';
}
return trim(Common::sanitizeInputValue($csv));
}
/**
* Returns a URL query string as an array.
*
* @param string $urlQuery The query string, eg, `'?param1=value1¶m2=value2'`.
* @return array eg, `array('param1' => 'value1', 'param2' => 'value2')`
* @api
*/
public static function getArrayFromQueryString($urlQuery)
{
if (strlen($urlQuery) == 0) {
return array();
}
// TODO: this method should not use a cache. callers should instead have their own cache, configured through DI.
// one undesirable side effect of using a cache here, is that this method can now init the StaticContainer, which makes setting
// test environment for RequestCommand more complicated.
$cache = \yii::$app->cache;
$cacheKey = 'arrayFromQuery' . $urlQuery;
if ($cache->exists($cacheKey)) {
return $cache->get($cacheKey);
}
if ($urlQuery[0] == '?') {
$urlQuery = substr($urlQuery, 1);
}
$separator = '&';
$urlQuery = $separator . $urlQuery;
// $urlQuery = str_replace(array('%20'), ' ', $urlQuery);
$referrerQuery = trim($urlQuery);
$values = explode($separator, $referrerQuery);
$nameToValue = array();
foreach ($values as $value) {
$pos = strpos($value, '=');
if ($pos !== false) {
$name = substr($value, 0, $pos);
$value = substr($value, $pos + 1);
if ($value === false) {
$value = '';
}
} else {
$name = $value;
$value = false;
}
if (!empty($name)) {
$name = Common::sanitizeInputValue($name);
}
if (!empty($value)) {
$value = Common::sanitizeInputValue($value);
}
// if array without indexes
$count = 0;
$tmp = preg_replace('/(\\[|%5b)(]|%5d)$/i', '', $name, -1, $count);
if (!empty($tmp) && $count) {
$name = $tmp;
if (isset($nameToValue[$name]) == false || is_array($nameToValue[$name]) == false) {
$nameToValue[$name] = array();
}
array_push($nameToValue[$name], $value);
} elseif (!empty($name)) {
$nameToValue[$name] = $value;
}
}
$cache->set($cacheKey, $nameToValue);
return $nameToValue;
}