54 lines
1.2 KiB
PHP
54 lines
1.2 KiB
PHP
|
<?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 (reference)
|
||
|
|
*/
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
}
|