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<?php
/**
* Seminar_User.php
* global object representing current user
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* @author André Noack <noack@data-quest.de>
* @copyright 2000 Stud.IP Core-Group
* @license http://www.gnu.org/licenses/gpl-2.0.html GPL version 2
*/
class Seminar_User
{
public $cfg = null; //UserConfig object
private $user = null; //User object
//private $last_online_time = null;
public function __construct($user = null)
{
if ($user instanceOf User) {
$this->user = $user;
} else {
$this->user = User::findFull($user);
}
if (!isset($this->user)) {
$this->user = new User();
$this->user->user_id = 'nobody';
$this->user->perms = null;
}
$this->cfg = UserConfig::get($this->user->user_id);
//$this->last_online_time = $this->get_last_action();
}
public function getAuthenticatedUser()
{
return $this->user->id !== 'nobody' ? $this->user : null;
}
private function get_last_action()
{
if ($this->id && $this->id != 'nobody') {
$stmt = DBManager::get()->prepare("SELECT last_lifesign FROM user_online WHERE user_id = ?");
$stmt->execute([$this->id]);
return $stmt->fetchColumn();
}
}
public function set_last_action($timestamp = 0)
{
if ($this->id && $this->id != 'nobody') {
if ($timestamp <= 0) {
$current_user_last_lifesign = $_SESSION['USER_LAST_LIFESIGN'] ?? 0;
if (time() - $current_user_last_lifesign < 180) {
return 0;
}
$timestamp = time();
}
$query = "INSERT INTO user_online (user_id, last_lifesign)
VALUES (:user_id, UNIX_TIMESTAMP() - :time_delta)
ON DUPLICATE KEY UPDATE last_lifesign = UNIX_TIMESTAMP() - :time_delta";
$stmt = DBManager::get()->prepare($query);
$stmt->bindValue(':user_id', $this->id);
$stmt->bindValue(':time_delta', time() - $timestamp, PDO::PARAM_INT);
$stmt->execute();
$_SESSION['USER_LAST_LIFESIGN'] = time() - $timestamp;
return $stmt->rowCount();
}
}
public function delete()
{
if ($this->id && $this->id != 'nobody') {
$stmt = DBManager::get()->prepare("DELETE FROM user_online WHERE user_id = ?");
$stmt->execute([$this->id]);
return $stmt->rowCount();
}
}
public function __get($field)
{
if ($field == 'id') {
return $this->user->user_id;
}
return $this->user->$field;
}
public function __set($field, $value)
{
return null;
}
public function __isset($field)
{
return isset($this->user->$field);
}
public function getFullName($format = 'full')
{
return $this->user->getFullName($format);
}
/**
* Returns whether the current needs to accept the terms of use.
* @return bool
*/
public function needsToAcceptTerms()
{
return $this->id !== 'nobody'
&& Config::get()->SHOW_TERMS_ON_FIRST_LOGIN
&& !$this->cfg->TERMS_ACCEPTED;
}
}
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