1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283 |
- <?php
- namespace Shaarli;
- /**
- * Manages the server-side session
- */
- class SessionManager
- {
- protected $session = [];
- /**
- * Constructor
- *
- * @param array $session The $_SESSION array (reference)
- * @param ConfigManager $conf ConfigManager instance
- */
- public function __construct(& $session, $conf)
- {
- $this->session = &$session;
- $this->conf = $conf;
- }
- /**
- * Generates a session token
- *
- * @return string token
- */
- public function generateToken()
- {
- $token = sha1(uniqid('', true) .'_'. mt_rand() . $this->conf->get('credentials.salt'));
- $this->session['tokens'][$token] = 1;
- return $token;
- }
- /**
- * Checks the validity of a session token, and destroys it afterwards
- *
- * @param string $token The token to check
- *
- * @return bool true if the token is valid, else false
- */
- public function checkToken($token)
- {
- if (! isset($this->session['tokens'][$token])) {
- // the token is wrong, or has already been used
- return false;
- }
- // destroy the token to prevent future use
- unset($this->session['tokens'][$token]);
- return true;
- }
- /**
- * Validate session ID to prevent Full Path Disclosure.
- *
- * See #298.
- * The session ID's format depends on the hash algorithm set in PHP settings
- *
- * @param string $sessionId Session ID
- *
- * @return true if valid, false otherwise.
- *
- * @see http://php.net/manual/en/function.hash-algos.php
- * @see http://php.net/manual/en/session.configuration.php
- */
- public static function checkId($sessionId)
- {
- if (empty($sessionId)) {
- return false;
- }
- if (!$sessionId) {
- return false;
- }
- if (!preg_match('/^[a-zA-Z0-9,-]{2,128}$/', $sessionId)) {
- return false;
- }
- return true;
- }
- }
|