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<?php |
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namespace Session; |
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use DateTime; |
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use Filemanager\file; |
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if (!function_exists('folder_session')) { |
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include __DIR__ . '/../MVC/loader.php'; |
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} |
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if (!defined('ROOT')) { |
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define('ROOT', __DIR__); |
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} |
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class session |
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{ |
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private $path_defined = null; |
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public $sessionCookieName = 'uf'; |
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public $cookiePath = '/'; |
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public $cookieDomain = ''; |
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/** |
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* Cookie will only be set if a secure HTTPS connection exists. |
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* |
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* @var bool |
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*/ |
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private $cookieSecure = false; |
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/** |
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* sid regex expression. |
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* |
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* @var string |
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*/ |
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private $sidRegexp; |
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public function __construct(int $timeout = 3600, string $session_folder = null) |
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{ |
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if (!$this->is_session_started()) { |
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//$this->configure($timeout, $session_folder); |
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//$this->start_timeout($timeout); |
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$this->handle($timeout, $session_folder); |
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} |
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} |
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public function is_session_started() |
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{ |
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return PHP_SESSION_ACTIVE == session_status(); |
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} |
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public function handle(int $timeout, string $folder = null) |
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{ |
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$name = '_' . $timeout . md5(\MVC\helper::getRequestIP() . \MVC\helper::useragent()); |
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if (empty(trim($folder)) || !$folder) { |
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$folder = \Filemanager\file::folder(__DIR__ . '/sessions'); |
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} |
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session_save_path($folder); |
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session_set_cookie_params($timeout); |
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ini_set('session.gc_maxlifetime', $timeout); |
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ini_set('session.cookie_lifetime', $timeout); |
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ini_set('session.gc_probability', 100); |
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ini_set('session.gc_divisor', 100); |
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session_id($name); |
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ini_set('session.use_strict_mode', 0); |
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session_name($name); |
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ini_set('session.use_strict_mode', 1); |
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$handler = new FileSessionHandler($folder, 'PHPJS'); |
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session_set_save_handler( |
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[$handler, 'open'], |
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[$handler, 'close'], |
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[$handler, 'read'], |
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[$handler, 'write'], |
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[$handler, 'destroy'], |
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[$handler, 'gc'] |
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); |
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register_shutdown_function('session_write_close'); |
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session_start(); |
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$path = ini_get('session.save_path'); |
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if (!file_exists($path . '/.htaccess')) { |
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file::file($path . '/.htaccess', 'deny from all'); |
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} |
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if (!isset($_SESSION['session_started'])) { |
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$_SESSION['session_started'] = $this->now(); |
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$_SESSION['session_timeout'] = ini_get('session.gc_maxlifetime'); |
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$_SESSION['cookie_timeout'] = ini_get('session.cookie_lifetime'); |
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} |
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} |
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private function configure(int $timeout, string $folder = null) |
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{ |
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ini_set('session.autostart', false); |
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//increase memory |
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ini_set('memory_limit', '256M'); //-1 |
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// Set the max lifetime |
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ini_set('session.gc_maxlifetime', $timeout); |
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// Set the session cookie to timeout |
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ini_set('session.cookie_lifetime', $timeout); |
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//coookie name |
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if (empty($this->sessionCookieName)) { |
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$this->sessionCookieName = \MVC\helper::clean_special_characters($_SERVER['HTTP_HOST']); |
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} |
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session_name('WebsiteID'); |
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ini_set('session.name', 'WebsiteID'); |
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//set session id |
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session_id(md5(\MVC\helper::getRequestIP())); |
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/*session_set_cookie_params( |
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$timeout, |
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$this->cookiePath, |
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$this->cookieDomain, |
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$this->cookieSecure, |
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true // HTTP only; Yes, this is intentional and not configurable for security reasons. |
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);*/ |
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//========== Session save path |
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if ($folder && realpath($folder)) { |
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$folder = realpath($folder); |
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} else { |
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$folder = \Filemanager\file::folder(__DIR__ . '/sessions'); |
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} |
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// Set session directory save path |
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ini_set('session.save_path', $folder); |
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// Change the save path. Sessions stored in teh same path |
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// all share the same lifetime; the lowest lifetime will be |
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// used for all. Therefore, for this to work, the session |
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// must be stored in a directory where only sessions sharing |
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// it's lifetime are. Best to just dynamically create on. |
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$seperator = strstr(strtoupper(substr(PHP_OS, 0, 3)), 'WIN') ? '\\' : '/'; |
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$dir = isset($_SERVER['HTTP_USER_AGENT']) ? md5($_SERVER['HTTP_USER_AGENT']) : \MVC\helper::getRequestIP(); |
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if (!$dir) { |
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$dir = 'null'; |
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} |
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$path = ini_get('session.save_path') . $seperator . $timeout . $dir; |
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$path = file::folder($path); |
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if (!is_dir(dirname($path))) { |
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if (!mkdir(dirname($path), 0777, true)) { |
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trigger_error("Failed to create session save path directory '$path'. Check permissions.", E_USER_ERROR); |
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} |
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} |
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if (!file_exists($path)) { |
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if (!mkdir($path, 0777, true)) { |
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trigger_error("Failed to create session save path directory '$path'. Check permissions.", E_USER_ERROR); |
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} |
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} |
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ini_set('session.save_path', $path); |
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$this->path_defined = $path; |
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//========== Session save path |
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// Security is king |
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ini_set('session.use_trans_sid', 0); |
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ini_set('session.use_strict_mode', 1); |
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ini_set('session.use_cookies', 1); |
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//ini_set('session.use_only_cookies', 1); |
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$bits_per_character = (int) (false !== ini_get('session.sid_bits_per_character') |
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? ini_get('session.sid_bits_per_character') |
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: 4); |
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$sid_length = (int) (false !== ini_get('session.sid_length') |
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? ini_get('session.sid_length') |
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: 40); |
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if (($sid_length * $bits_per_character) < 160) { |
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$bits = ($sid_length * $bits_per_character); |
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// Add as many more characters as necessary to reach at least 160 bits |
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$sid_length += (int) ceil((160 % $bits) / $bits_per_character); |
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ini_set('session.sid_length', $sid_length); |
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} |
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// Yes, 4,5,6 are the only known possible values as of 2016-10-27 |
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switch ($bits_per_character) { |
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case 4: |
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$this->sidRegexp = '[0-9a-f]'; |
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break; |
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case 5: |
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$this->sidRegexp = '[0-9a-v]'; |
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break; |
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case 6: |
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$this->sidRegexp = '[0-9a-zA-Z,-]'; |
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break; |
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} |
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$this->sidRegexp .= '{' . $sid_length . '}'; |
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} |
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/*** |
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* Starts a session with a specific timeout and a specific GC probability. |
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* @param int $timeout The number of seconds until it should time out. |
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* @param int $probability The probablity, in int percentage, that the garbage |
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* collection routine will be triggered right now. |
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* @param strint $cookie_domain The domain path for the cookie. |
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*/ |
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public function start_timeout($timeout = 5, $probability = 100) |
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{ |
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if ($this->is_session_started()) { |
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throw new \MVC\Exception('Session already started', 1); |
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} |
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// Set the chance to trigger the garbage collection. |
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ini_set('session.gc_probability', $probability); |
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ini_set('session.gc_divisor', 100); // Should always be 100 |
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if (!$this->path_defined) { |
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$this->configure($timeout, null); |
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} |
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// Start the session! |
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session_start(); |
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// Renew the time left until this session times out. |
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// If you skip this, the session will time out based |
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// on the time when it was created, rather than when |
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// it was last used. |
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if (isset($_COOKIE[session_name()]) && !headers_sent()) { |
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setcookie(session_name(), $_COOKIE[session_name()], time() + $timeout, $this->cookiePath, $this->cookieDomain, $this->cookieSecure, true); |
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} |
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$this->protect_session($timeout); |
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} |
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public function dump() |
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{ |
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exit(\JSON\json::json( |
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[ |
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'sessions' => [ |
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'active' => PHP_SESSION_NONE == session_status(), |
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'id' => session_id(), |
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'folder' => \MVC\helper::fixSlash(ini_get('session.save_path')), |
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'session.gc_maxlifetime' => ini_get('session.gc_maxlifetime'), |
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'session.cookie_lifetime' => ini_get('session.cookie_lifetime'), |
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'session.gc_probability' => ini_get('session.gc_probability'), |
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'session.gc_divisor' => ini_get('session.gc_divisor'), |
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'session.hash_function' => ini_get('session.hash_function'), |
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], |
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] |
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)); |
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} |
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public static function has($key, bool $empty = true) |
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{ |
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$return = isset($_SESSION[$key]); |
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if ($return && !$empty) { |
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$return = $return && !empty($return); |
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} |
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return $return; |
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} |
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public static function get($key) |
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{ |
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if (isset($_SESSION[$key])) { |
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return $_SESSION[$key]; |
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} |
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} |
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public static function gets(array $keys) |
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{ |
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$result = []; |
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foreach ($keys as $key) { |
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if (isset($_SESSION[$key])) { |
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$result[] = $_SESSION[$key]; |
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} |
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} |
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return $result; |
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} |
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public static function all() |
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{ |
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return $_SESSION; |
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} |
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private static $_instance = null; |
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public static function getInstance() |
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{ |
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if (null === self::$_instance) { |
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self::$_instance = new self(); |
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} |
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return self::$_instance; |
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} |
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/** |
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* Unset Session. |
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* |
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* @param array|string|Number $name |
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*/ |
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public static function unses($name) |
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{ |
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if (is_array($name)) { |
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foreach ($name as $n) { |
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if (isset($_SESSION[$n])) { |
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unset($_SESSION[$n]); |
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} |
302
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} |
303
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} elseif (is_string($name)) { |
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if (isset($_SESSION[$name])) { |
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unset($_SESSION[$name]); |
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} |
307
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} |
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} |
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310
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private function protect_session(int $timeout) |
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{ |
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//creating htaccess for deny direct access |
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$path = ini_get('session.save_path'); |
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if (!file_exists($path . '/.htaccess')) { |
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file::file($path . '/.htaccess', 'deny from all'); |
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316
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} |
317
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if (!isset($_SESSION['session_started'])) { |
318
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$_SESSION['session_started'] = $this->now(); |
319
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$_SESSION['session_timeout'] = ini_get('session.gc_maxlifetime'); |
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$_SESSION['cookie_timeout'] = ini_get('session.cookie_lifetime'); |
321
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} elseif (isset($_SESSION['session_started'])) { |
322
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/** |
323
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* @var DateTime |
324
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*/ |
325
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$started = $_SESSION['session_started']; |
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$ago = $started->getTimestamp() + $timeout; |
327
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$_SESSION['session_expires_in'] = date('D M j G:i:s O Y', $ago); |
328
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if ($ago < $this->now()->getTimestamp()) { |
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session_regenerate_id(isset($_SERVER['HTTP_LOGOUT'])); |
330
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} |
331
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} |
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if (isset($_SESSION['login'])) { |
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if (isset($_REQUEST['dump-session']) && isset($_SESSION['login']['role'])) { |
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if (preg_match('/admin/s', $_SESSION['login']['role'])) { |
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$this->dump(); |
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} |
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} |
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} |
339
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} |
340
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341
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public function now() |
342
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{ |
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$now = new \DateTime(null, new \DateTimeZone('Asia/Jakarta')); |
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return $now; |
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} |
347
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348
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public function is_sess($session_name, $not_found = null) |
349
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{ |
350
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if (isset($_SESSION[$session_name])) { |
351
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return $_SESSION[$session_name]; |
352
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} |
353
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354
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return $not_found; |
355
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} |
356
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357
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public function sess($key, $val) |
358
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{ |
359
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$_SESSION[$key] = $val; |
360
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} |
361
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362
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public static function set_session($data, $value = null) |
363
|
|
|
{ |
364
|
|
|
if (\ArrayHelper\helper::is_iterable($data)) { |
365
|
|
|
foreach ($data as $key => $val) { |
366
|
|
|
$_SESSION[$key] = $val; |
367
|
|
|
} |
368
|
|
|
} |
369
|
|
|
if (is_string($data)) { |
370
|
|
|
$_SESSION[$data] = $value; |
371
|
|
|
} |
372
|
|
|
} |
373
|
|
|
|
374
|
|
|
/** |
375
|
|
|
* Regenerates the session ID. |
376
|
|
|
* |
377
|
|
|
* @param bool $destroy Should old session data be destroyed? |
378
|
|
|
*/ |
379
|
|
|
private function regenerate(bool $destroy = false) |
|
|
|
|
380
|
|
|
{ |
381
|
|
|
$_SESSION['session_last_generate'] = time(); |
382
|
|
|
session_regenerate_id($destroy); |
383
|
|
|
} |
384
|
|
|
} |
385
|
|
|
|