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<?php |
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/** |
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* This file is part of the Shieldon package. |
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* |
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* (c) Terry L. <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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* |
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* php version 7.1.0 |
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* |
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* @category Web-security |
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* @package Shieldon |
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* @author Terry Lin <[email protected]> |
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* @copyright 2019 terrylinooo |
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* @license https://github.com/terrylinooo/shieldon/blob/2.x/LICENSE MIT |
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* @link https://github.com/terrylinooo/shieldon |
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* @see https://shieldon.io |
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*/ |
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declare(strict_types=1); |
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namespace Shieldon\Firewall; |
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use Shieldon\Firewall\Container; |
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use Shieldon\Firewall\Driver\DirverProvider; |
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use Shieldon\Firewall\Log\SessionLogger; |
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use Shieldon\Event\Event; |
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use RuntimeException; |
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use function Shieldon\Firewall\create_session_id; |
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use function Shieldon\Firewall\get_ip; |
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use function Shieldon\Firewall\get_microtimesamp; |
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use function Shieldon\Firewall\get_request; |
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use function Shieldon\Firewall\get_response; |
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use function Shieldon\Firewall\set_response; |
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use function intval; |
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use function rand; |
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use function setcookie; |
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use function time; |
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use function php_sapi_name; |
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/* |
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* Session for the use of Shieldon. |
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*/ |
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class Session |
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{ |
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/** |
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* Public methods | Desctiotion |
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* ----------------------|--------------------------------------------- |
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* init | Initialize the session. |
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* getId | Get session ID. |
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* setId | Set session ID |
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* isInitialized | Check if a session has been initialized or not. |
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* get | Get specific value from session by key. |
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* set | To store data in the session. |
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* remove | To delete data from the session. |
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* has | To determine if an item is present in the session. |
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* clear | Clear all data in the session array. |
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* save | Save session data into database. |
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* ::resetCookie | Create a new session cookie for current user. |
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* ----------------------|--------------------------------------------- |
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*/ |
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/** |
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* The session data. |
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* |
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* @var array |
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*/ |
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protected $data = []; |
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/** |
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* The session data will be removed after expiring. |
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* Time unit: second. |
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* |
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* @var int |
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*/ |
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protected $expire = 600; |
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/** |
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* The Shieldon kernel. |
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* |
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* @var Kernel|null |
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*/ |
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protected $kernel; |
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/** |
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* The data driver. |
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* |
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* @var DirverProvider|null |
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*/ |
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protected $driver; |
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/** |
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* Make sure the init() run first. |
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* |
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* @var bool |
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*/ |
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protected static $status = false; |
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/** |
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* A session Id. |
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* |
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* @var string |
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*/ |
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protected static $id = '_php_cli_'; |
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/** |
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* Constructor. |
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* |
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* @param string $id Session ID |
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*/ |
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public function __construct(string $sessionId = '') |
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{ |
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$this->setId($sessionId); |
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/** |
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* Store the session data back into the database table when the |
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* Shieldon Kernel workflow is reaching the end of the process. |
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*/ |
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Event::AddListener('kernel_end', [$this, 'save'], 10); |
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/** |
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* Store the session data back into the database table when the |
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* user is logged successfully. |
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*/ |
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Event::AddListener('user_login', [$this, 'save'], 10); |
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self::log(); |
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} |
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/** |
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* Initialize. |
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* |
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* @param object $driver The data driver. |
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* @param int $gcExpires The time of expiring. |
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* @param int $gcProbability GC setting, |
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* @param int $gcDivisor GC setting, |
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* @param bool $psr7 Reset the cookie the PSR-7 way? |
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* |
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* @return void |
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*/ |
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public function init( |
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$driver, |
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int $gcExpires = 300, |
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int $gcProbability = 1, |
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int $gcDivisor = 100, |
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bool $psr7 = true |
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): void { |
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$this->driver = $driver; |
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$cookie = get_request()->getCookieParams(); |
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$this->gc($gcExpires, $gcProbability, $gcDivisor); |
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// New visitor? Create a new session. |
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if ( |
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php_sapi_name() !== 'cli' && |
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empty($cookie['_shieldon']) |
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) { |
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self::resetCookie($psr7); |
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$this->create(); |
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self::$status = true; |
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return; |
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} |
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$this->data = $this->driver->get(self::$id, 'session'); |
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if (empty($this->data)) { |
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self::resetCookie($psr7); |
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$this->create(); |
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} |
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$this->parsedData(); |
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self::$status = true; |
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self::log(self::$id); |
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} |
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/** |
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* Get the channel name from data driver. |
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* |
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* @return string |
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*/ |
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public function getChannel(): string |
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{ |
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return $this->driver->getChannel(); |
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} |
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/** |
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* Check the initialization status. |
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* |
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* @return bool |
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*/ |
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public function isInitialized(): bool |
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{ |
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return self::$status; |
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} |
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/** |
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* Get session ID. |
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* |
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* @return string |
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*/ |
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public function getId(): string |
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{ |
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return self::$id; |
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} |
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/** |
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* Set session ID. |
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* |
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* @param string $id Session Id. |
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* |
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* @return void |
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*/ |
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public function setId(string $id): void |
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{ |
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self::$id = $id; |
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// We store this session ID into the container for the use of other functions. |
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Container::set('session_id', $id, true); |
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self::log($id); |
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} |
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/** |
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* Get specific value from session by key. |
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* |
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* @param string $key The key of a data field. |
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* |
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* @return mixed |
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*/ |
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public function get(string $key) |
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{ |
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$this->assertInit(); |
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return $this->data['parsed_data'][$key] ?? ''; |
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} |
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/** |
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* To store data in the session. |
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* |
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* @param string $key The key of a data field. |
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* @param mixed $value The value of a data field. |
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* |
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* @return void |
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*/ |
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public function set(string $key, $value): void |
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{ |
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$this->assertInit(); |
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$this->data['parsed_data'][$key] = $value; |
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} |
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/** |
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* To delete data from the session. |
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* |
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* @param string $key The key of a data field. |
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* |
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* @return void |
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*/ |
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public function remove(string $key): void |
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{ |
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$this->assertInit(); |
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if (isset($this->data['parsed_data'][$key])) { |
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unset($this->data['parsed_data'][$key]); |
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} |
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} |
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/** |
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* To determine if an item is present in the session. |
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* |
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* @param string $key The key of a data field. |
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* |
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* @return bool |
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*/ |
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public function has($key): bool |
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{ |
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$this->assertInit(); |
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return isset($this->data['parsed_data'][$key]); |
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} |
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/** |
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* Clear all data in the session array. |
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* |
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* @return void |
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*/ |
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public function clear(): void |
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{ |
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$this->assertInit(); |
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$this->data = []; |
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} |
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/** |
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* Save session data into database. |
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* |
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* @return void |
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*/ |
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public function save(): void |
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{ |
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$data['id'] = self::$id; |
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$data['ip'] = get_ip(); |
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$data['time'] = time(); |
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$data['microtimesamp'] = (string) get_microtimesamp(); |
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$data['data'] = json_encode($this->data['parsed_data']); |
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$this->driver->save(self::$id, $data, 'session'); |
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self::log(self::$id . "\n" . $this->data['data']); |
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} |
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/** |
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* Reset cookie. |
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* |
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* @param bool $psr7 Reset the cookie the PSR-7 way, otherwise native. |
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* |
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* @return void |
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*/ |
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public static function resetCookie(bool $psr7 = true): void |
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{ |
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$sessionHashId = create_session_id(); |
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$cookieName = '_shieldon'; |
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$expiredTime = time() + 3600; |
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if ($psr7) { |
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$expires = date('D, d M Y H:i:s', $expiredTime) . ' GMT'; |
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$response = get_response()->withHeader( |
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'Set-Cookie', |
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$cookieName . '=' . $sessionHashId . '; Path=/; Expires=' . $expires |
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); |
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set_response($response); |
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} else { |
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setcookie($cookieName, $sessionHashId, $expiredTime, '/'); |
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} |
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self::$id = $sessionHashId; |
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self::log($sessionHashId); |
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} |
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/** |
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* Perform session data garbage collection. |
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* |
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* @param int $expires The time of expiring. |
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* @param int $probability Numerator. |
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* @param int $divisor Denominator. |
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* |
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* @return bool |
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*/ |
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protected function gc(int $expires, int $probability, int $divisor): bool |
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{ |
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$chance = intval($divisor / $probability); |
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$hit = rand(1, $chance); |
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if ($hit === 1) { |
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$sessionData = $this->driver->getAll('session'); |
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if (!empty($sessionData)) { |
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foreach ($sessionData as $v) { |
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$lasttime = (int) $v['time']; |
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if (time() - $lasttime > $expires) { |
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$this->driver->delete($v['id'], 'session'); |
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} |
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} |
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} |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Create session data structure. |
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* |
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* @return void |
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*/ |
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protected function create(): void |
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{ |
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// Initialize new session data. |
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$data['id'] = self::$id; |
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$data['ip'] = get_ip(); |
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$data['time'] = time(); |
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$data['microtimesamp'] = get_microtimesamp(); |
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// This field is a JSON string. |
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$data['data'] = '{}'; |
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$data['parsed_data'] = []; |
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$this->data = $data; |
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$this->save(); |
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self::log(json_encode($this->data)); |
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} |
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/** |
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|
|
|
* Parse JSON data and store it into parsed_data field. |
404
|
|
|
* |
405
|
|
|
* @return void |
406
|
|
|
*/ |
407
|
|
|
protected function parsedData() |
408
|
|
|
{ |
409
|
|
|
if (empty($this->data['data'])) { |
410
|
|
|
$this->data['data'] = '{}'; |
411
|
|
|
} |
412
|
|
|
$this->data['parsed_data'] = json_decode($this->data['data'], true); |
413
|
|
|
} |
414
|
|
|
|
415
|
|
|
/** |
416
|
|
|
* Make sure init run first. |
417
|
|
|
* |
418
|
|
|
* @return void |
419
|
|
|
*/ |
420
|
|
|
protected function assertInit(): void |
421
|
|
|
{ |
422
|
|
|
if (!$this->isInitialized()) { |
423
|
|
|
throw new RuntimeException( |
424
|
|
|
'The init method is supposed to run first.' |
425
|
|
|
); |
426
|
|
|
} |
427
|
|
|
} |
428
|
|
|
|
429
|
|
|
/** |
430
|
|
|
* Log. |
431
|
|
|
* |
432
|
|
|
* @return void |
433
|
|
|
*/ |
434
|
|
|
protected static function log($text = '') |
435
|
|
|
{ |
436
|
|
|
if (php_sapi_name() === 'cli') { |
437
|
|
|
SessionLogger::log($text); |
438
|
|
|
} |
439
|
|
|
} |
440
|
|
|
} |
The issue could also be caused by a filter entry in the build configuration. If the path has been excluded in your configuration, e.g.
excluded_paths: ["lib/*"]
, you can move it to the dependency path list as follows:For further information see https://scrutinizer-ci.com/docs/tools/php/php-scrutinizer/#list-dependency-paths