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<?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\Plugins\UsersManager;
use Piwik\Common;
use Piwik\Date;
use Piwik\Piwik;
/**
* Class that logs the time the current user is accessing the current resource (which is 'now')
* so it can be retrieved later.
*/
class LastSeenTimeLogger
{
/**
* The amount of time in seconds that a last seen value is considered valid. We don't want
* to update the database for every request made by every user, so we only do it if the time
* has been at least this many seconds from the last known time.
*/
public const LAST_TIME_SAVE_DELTA = 300;
/**
* Returns the time a user was last seen or `null` if the user has never logged in
*/
public static function getLastSeenTimeForUser($userName): ?int
{
try {
$userModel = new Model();
return $userModel->getLastSeenTimestamp($userName);
} catch (\Exception $e) {
return null;
}
}
/**
* Returns the last seen time for all users if it has been set
*/
public static function getLastSeenTimesForAllUsers(): array
{
try {
$userModel = new Model();
return $userModel->getLastSeenTimestampForAllSeenUsers();
} catch (\Exception $e) {
return [];
}
}
/**
* Saves the current time for a user as an option if the current request is for something
* in the reporting UI, the current user is not anonymous, and the time hasn't been saved
* in the last 5 minutes.
*/
public static function logCurrentUserLastSeenTime()
{
$module = Common::getRequestVar('module', '');
$currentUserLogin = Piwik::getCurrentUserLogin();
// only log time for non-anonymous visits to the reporting UI
if (
$module == 'API'
|| $module == 'Proxy'
|| Piwik::isUserIsAnonymous()
) {
return;
}
try {
// get the last known time
$lastSeen = self::getLastSeenTimeForUser($currentUserLogin);
// do not log if the last known time is less than N seconds from now (so we don't make too many queries)
if ($lastSeen && (time() - $lastSeen <= self::LAST_TIME_SAVE_DELTA)) {
return;
}
// log last seen time
$userModel = new Model();
$userModel->setLastSeenDatetime($currentUserLogin, Date::factory('now')->getDatetime());
} catch (\Exception $e) {
// do nothing if getting or setting the timestamp fails, e.g. during an upgrade
}
}
}
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