db45a36a53
Changed: - move INACTIVITY_TIMEOUT to SessionManager - inject a dependency to a SessionManager instance in: - fillSessionInfo() - setup_login_state() - check_auth() - cleanup related code and comments Signed-off-by: VirtualTam <virtualtam@flibidi.net>
88 lines
2.1 KiB
PHP
88 lines
2.1 KiB
PHP
<?php
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namespace Shaarli;
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/**
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* Manages the server-side session
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*/
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class SessionManager
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{
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/** Session expiration timeout, in seconds */
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public static $INACTIVITY_TIMEOUT = 3600;
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/** Local reference to the global $_SESSION array */
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protected $session = [];
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/**
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* Constructor
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*
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* @param array $session The $_SESSION array (reference)
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* @param ConfigManager $conf ConfigManager instance
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*/
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public function __construct(& $session, $conf)
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{
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$this->session = &$session;
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$this->conf = $conf;
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}
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/**
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* Generates a session token
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*
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* @return string token
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*/
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public function generateToken()
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{
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$token = sha1(uniqid('', true) .'_'. mt_rand() . $this->conf->get('credentials.salt'));
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$this->session['tokens'][$token] = 1;
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return $token;
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}
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/**
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* Checks the validity of a session token, and destroys it afterwards
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*
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* @param string $token The token to check
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*
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* @return bool true if the token is valid, else false
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*/
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public function checkToken($token)
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{
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if (! isset($this->session['tokens'][$token])) {
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// the token is wrong, or has already been used
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return false;
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}
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// destroy the token to prevent future use
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unset($this->session['tokens'][$token]);
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return true;
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}
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/**
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* Validate session ID to prevent Full Path Disclosure.
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*
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* See #298.
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* The session ID's format depends on the hash algorithm set in PHP settings
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*
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* @param string $sessionId Session ID
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*
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* @return true if valid, false otherwise.
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*
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* @see http://php.net/manual/en/function.hash-algos.php
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* @see http://php.net/manual/en/session.configuration.php
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*/
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public static function checkId($sessionId)
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{
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if (empty($sessionId)) {
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return false;
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}
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if (!$sessionId) {
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return false;
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}
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if (!preg_match('/^[a-zA-Z0-9,-]{2,128}$/', $sessionId)) {
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return false;
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}
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return true;
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}
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}
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