| | |
| | | | Author: Thomas Bruederli <roundcube@gmail.com> | |
| | | | Author: Aleksander Machniak <alec@alec.pl> | |
| | | +-----------------------------------------------------------------------+ |
| | | |
| | | $Id: session.inc 2932 2009-09-07 12:51:21Z alec $ |
| | | |
| | | */ |
| | | |
| | | /** |
| | |
| | | private $vars = false; |
| | | private $key; |
| | | private $now; |
| | | private $prev; |
| | | private $secret = ''; |
| | | private $ip_check = false; |
| | | private $logging = false; |
| | |
| | | // valid time range is now - 1/2 lifetime to now + 1/2 lifetime |
| | | $now = time(); |
| | | $this->now = $now - ($now % ($this->lifetime / 2)); |
| | | $this->prev = $this->now - ($this->lifetime / 2); |
| | | } |
| | | |
| | | /** |
| | |
| | | $this->log("IP check failed for " . $this->key . "; expected " . $this->ip . "; got " . $_SERVER['REMOTE_ADDR']); |
| | | |
| | | if ($result && $this->_mkcookie($this->now) != $this->cookie) { |
| | | // Check if using id from previous time slot |
| | | if ($this->_mkcookie($this->prev) == $this->cookie) { |
| | | $this->set_auth_cookie(); |
| | | $this->log("Session auth check failed for " . $this->key . "; timeslot = " . date('Y-m-d H:i:s', $this->now)); |
| | | $result = false; |
| | | |
| | | // Check if using id from a previous time slot |
| | | for ($i = 1; $i <= 2; $i++) { |
| | | $prev = $this->now - ($this->lifetime / 2) * $i; |
| | | if ($this->_mkcookie($prev) == $this->cookie) { |
| | | $this->log("Send new auth cookie for " . $this->key . ": " . $this->cookie); |
| | | $this->set_auth_cookie(); |
| | | $result = true; |
| | | } |
| | | } |
| | | else { |
| | | $result = false; |
| | | $this->log("Session authentication failed for " . $this->key . "; invalid auth cookie sent"); |
| | | } |
| | | } |
| | | } |
| | | |
| | | if (!$result) |
| | | $this->log("Session authentication failed for " . $this->key . "; invalid auth cookie sent; timeslot = " . date('Y-m-d H:i:s', $prev)); |
| | | |
| | | return $result; |
| | | } |