| | |
| | | | program/include/rcube_session.php | |
| | | | | |
| | | | This file is part of the Roundcube Webmail client | |
| | | | Copyright (C) 2005-2011, The Roundcube Dev Team | |
| | | | Copyright (C) 2005-2012, The Roundcube Dev Team | |
| | | | Copyright (C) 2011, Kolab Systems AG | |
| | | | Licensed under the GNU GPL | |
| | | | | |
| | | | Licensed under the GNU General Public License version 3 or | |
| | | | any later version with exceptions for skins & plugins. | |
| | | | See the README file for a full license statement. | |
| | | | | |
| | | | PURPOSE: | |
| | | | Provide database supported session management | |
| | |
| | | */ |
| | | public function __construct($db, $config) |
| | | { |
| | | $this->db = $db; |
| | | $this->start = microtime(true); |
| | | $this->ip = $_SERVER['REMOTE_ADDR']; |
| | | $this->db = $db; |
| | | $this->start = microtime(true); |
| | | $this->ip = $_SERVER['REMOTE_ADDR']; |
| | | $this->logging = $config->get('log_session', false); |
| | | |
| | | $lifetime = $config->get('session_lifetime', 1) * 60; |
| | |
| | | array($this, 'gc')); |
| | | } |
| | | else { |
| | | raise_error(array('code' => 604, 'type' => 'db', |
| | | rcube::raise_error(array('code' => 604, 'type' => 'db', |
| | | 'line' => __LINE__, 'file' => __FILE__, |
| | | 'message' => "Failed to connect to memcached. Please check configuration"), |
| | | true, true); |
| | |
| | | public function db_read($key) |
| | | { |
| | | $sql_result = $this->db->query( |
| | | "SELECT vars, ip, changed FROM ".get_table_name('session')." WHERE sess_id = ?", |
| | | $key); |
| | | "SELECT vars, ip, changed FROM ".$this->db->table_name('session') |
| | | ." WHERE sess_id = ?", $key); |
| | | |
| | | if ($sql_arr = $this->db->fetch_assoc($sql_result)) { |
| | | if ($sql_result && ($sql_arr = $this->db->fetch_assoc($sql_result))) { |
| | | $this->changed = strtotime($sql_arr['changed']); |
| | | $this->ip = $sql_arr['ip']; |
| | | $this->vars = base64_decode($sql_arr['vars']); |
| | |
| | | $ts = microtime(true); |
| | | $now = $this->db->fromunixtime((int)$ts); |
| | | |
| | | // no session row in DB (db_read() returns false) |
| | | if (!$this->key) { |
| | | $oldvars = false; |
| | | } |
| | | // use internal data from read() for fast requests (up to 0.5 sec.) |
| | | if ($key == $this->key && (!$this->vars || $ts - $this->start < 0.5)) { |
| | | else if ($key == $this->key && (!$this->vars || $ts - $this->start < 0.5)) { |
| | | $oldvars = $this->vars; |
| | | } else { // else read data again from DB |
| | | } |
| | | else { // else read data again from DB |
| | | $oldvars = $this->db_read($key); |
| | | } |
| | | |
| | |
| | | if ($newvars !== $oldvars) { |
| | | $this->db->query( |
| | | sprintf("UPDATE %s SET vars=?, changed=%s WHERE sess_id=?", |
| | | get_table_name('session'), $now), |
| | | $this->db->table_name('session'), $now), |
| | | base64_encode($newvars), $key); |
| | | } |
| | | else if ($ts - $this->changed > $this->lifetime / 2) { |
| | | $this->db->query("UPDATE ".get_table_name('session')." SET changed=$now WHERE sess_id=?", $key); |
| | | $this->db->query("UPDATE ".$this->db->table_name('session')." SET changed=$now WHERE sess_id=?", $key); |
| | | } |
| | | } |
| | | else { |
| | | $this->db->query( |
| | | sprintf("INSERT INTO %s (sess_id, vars, ip, created, changed) ". |
| | | "VALUES (?, ?, ?, %s, %s)", |
| | | get_table_name('session'), $now, $now), |
| | | $this->db->table_name('session'), $now, $now), |
| | | $key, base64_encode($vars), (string)$this->ip); |
| | | } |
| | | |
| | |
| | | */ |
| | | private function _fixvars($vars, $oldvars) |
| | | { |
| | | $ts = microtime(true); |
| | | |
| | | if ($oldvars !== false) { |
| | | $a_oldvars = $this->unserialize($oldvars); |
| | | if (is_array($a_oldvars)) { |
| | |
| | | public function db_destroy($key) |
| | | { |
| | | $this->db->query( |
| | | sprintf("DELETE FROM %s WHERE sess_id = ?", get_table_name('session')), |
| | | sprintf("DELETE FROM %s WHERE sess_id = ?", $this->db->table_name('session')), |
| | | $key); |
| | | |
| | | return true; |
| | |
| | | // just delete all expired sessions |
| | | $this->db->query( |
| | | sprintf("DELETE FROM %s WHERE changed < %s", |
| | | get_table_name('session'), $this->db->fromunixtime(time() - $maxlifetime))); |
| | | $this->db->table_name('session'), $this->db->fromunixtime(time() - $maxlifetime))); |
| | | |
| | | $this->gc(); |
| | | |
| | |
| | | { |
| | | $ts = microtime(true); |
| | | |
| | | // no session data in cache (mc_read() returns false) |
| | | if (!$this->key) |
| | | $oldvars = false; |
| | | // use internal data for fast requests (up to 0.5 sec.) |
| | | if ($key == $this->key && (!$this->vars || $ts - $this->start < 0.5)) |
| | | else if ($key == $this->key && (!$this->vars || $ts - $this->start < 0.5)) |
| | | $oldvars = $this->vars; |
| | | else // else read data again |
| | | $oldvars = $this->mc_read($key); |
| | |
| | | */ |
| | | public function gc() |
| | | { |
| | | foreach ($this->gc_handlers as $fct) |
| | | foreach ($this->gc_handlers as $fct) { |
| | | call_user_func($fct); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Cleanup session data before saving |
| | | */ |
| | | public function cleanup() |
| | | { |
| | | // current compose information is stored in $_SESSION['compose'], move it to $_SESSION['compose_data'] |
| | | if ($_SESSION['compose']) { |
| | | $_SESSION['compose_data'][$_SESSION['compose']['id']] = $_SESSION['compose']; |
| | | $this->remove('compose'); |
| | | } |
| | | } |
| | | |
| | |
| | | * |
| | | * @param mixed Callback function |
| | | */ |
| | | public function register_gc_handler($func_name) |
| | | public function register_gc_handler($func) |
| | | { |
| | | if ($func_name && !in_array($func_name, $this->gc_handlers)) |
| | | $this->gc_handlers[] = $func_name; |
| | | foreach ($this->gc_handlers as $handler) { |
| | | if ($handler == $func) { |
| | | return; |
| | | } |
| | | } |
| | | |
| | | $this->gc_handlers[] = $func; |
| | | } |
| | | |
| | | |
| | |
| | | public function kill() |
| | | { |
| | | $this->vars = false; |
| | | $this->ip = $_SERVER['REMOTE_ADDR']; // update IP (might have changed) |
| | | $this->destroy(session_id()); |
| | | rcmail::setcookie($this->cookiename, '-del-', time() - 60); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * Re-read session data from storage backend |
| | | */ |
| | | public function reload() |
| | | { |
| | | if ($this->key && $this->memcache) |
| | | $data = $this->mc_read($this->key); |
| | | else if ($this->key) |
| | | $data = $this->db_read($this->key); |
| | | |
| | | if ($data) |
| | | session_decode($data); |
| | | } |
| | | |
| | | |
| | |
| | | $auth_string = "$this->key,$this->secret,$timeslot"; |
| | | return "S" . (function_exists('sha1') ? sha1($auth_string) : md5($auth_string)); |
| | | } |
| | | |
| | | |
| | | /** |
| | | * |
| | | */ |
| | | function log($line) |
| | | { |
| | | if ($this->logging) |
| | | write_log('session', $line); |
| | | rcmail::write_log('session', $line); |
| | | } |
| | | |
| | | } |