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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare

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Current Path : /var/www/web28/html/wp-content/plugins/matomo/app/core/DeviceDetector/

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Current File : //var/www/web28/html/wp-content/plugins/matomo/app/core/DeviceDetector/DeviceDetectorFactory.php

<?php

/**
 * Matomo - free/libre analytics platform
 *
 * @link    https://matomo.org
 * @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
 */
namespace Piwik\DeviceDetector;

use DeviceDetector\ClientHints;
use DeviceDetector\DeviceDetector;
use Piwik\Container\StaticContainer;
class DeviceDetectorFactory
{
    protected static $deviceDetectorInstances = [];
    /**
     * Returns an instance of DeviceDetector for the given user agent. Uses template method pattern
     * and calls getDeviceDetectionInfo() when it doesn't find a matching instance in the cache.
     * @param string $userAgent
     * @param array $clientHints
     * @return DeviceDetector
     */
    public function makeInstance($userAgent, array $clientHints = [])
    {
        $cacheKey = self::getNormalizedUserAgent($userAgent, $clientHints);
        if (array_key_exists($cacheKey, self::$deviceDetectorInstances)) {
            return self::$deviceDetectorInstances[$cacheKey];
        }
        $deviceDetector = $this->getDeviceDetectionInfo($userAgent, $clientHints);
        self::$deviceDetectorInstances[$cacheKey] = $deviceDetector;
        return $deviceDetector;
    }
    public static function getNormalizedUserAgent($userAgent, array $clientHints = [])
    {
        $normalizedClientHints = '';
        if (is_array($clientHints) && count($clientHints)) {
            $hints = ClientHints::factory($clientHints);
            $brands = $hints->getBrandList();
            ksort($brands);
            // we only take the (sorted) list of brand, os + version and model name into account, as the other values
            // are actually not used and should not change the result
            $normalizedClientHints = md5(json_encode($brands) . $hints->getOperatingSystem() . $hints->getOperatingSystemVersion() . $hints->getModel());
        }
        return mb_substr($normalizedClientHints . trim($userAgent), 0, 500);
    }
    /**
     * Creates a new DeviceDetector for the user agent. Called by makeInstance() when no matching instance
     * was found in the cache.
     * @param string $userAgent
     * @param array $clientHints
     * @return DeviceDetector
     */
    protected function getDeviceDetectionInfo($userAgent, array $clientHints = [])
    {
        $deviceDetector = new DeviceDetector($userAgent, ClientHints::factory($clientHints));
        $deviceDetector->discardBotInformation();
        $deviceDetector->setCache(StaticContainer::get('DeviceDetector\\Cache\\Cache'));
        $deviceDetector->parse();
        return $deviceDetector;
    }
    public static function clearInstancesCache()
    {
        self::$deviceDetectorInstances = [];
    }
}

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