| | |
| | | /* |
| | | +-----------------------------------------------------------------------+ |
| | | | This file is part of the Roundcube Webmail client | |
| | | | Copyright (C) 2005-2012, The Roundcube Dev Team | |
| | | | Copyright (C) 2005-2014, The Roundcube Dev Team | |
| | | | Copyright (C) 2011, Kolab Systems AG | |
| | | | | |
| | | | Licensed under the GNU General Public License version 3 or | |
| | |
| | | private $changed; |
| | | private $time_diff = 0; |
| | | private $reloaded = false; |
| | | private $appends = array(); |
| | | private $unsets = array(); |
| | | private $gc_handlers = array(); |
| | | private $cookiename = 'roundcube_sessauth'; |
| | |
| | | private $storage; |
| | | private $memcache; |
| | | |
| | | /** |
| | | * Blocks session data from being written to database. |
| | | * Can be used if write-race conditions are to be expected |
| | | * @var boolean |
| | | */ |
| | | public $nowrite = false; |
| | | |
| | | |
| | | /** |
| | | * Default constructor |
| | |
| | | { |
| | | $this->db = $db; |
| | | $this->start = microtime(true); |
| | | $this->ip = $_SERVER['REMOTE_ADDR']; |
| | | $this->ip = rcube_utils::remote_addr(); |
| | | $this->logging = $config->get('log_session', false); |
| | | |
| | | $lifetime = $config->get('session_lifetime', 1) * 60; |
| | |
| | | array($this, 'db_write'), |
| | | array($this, 'db_destroy'), |
| | | array($this, 'gc')); |
| | | |
| | | $this->table_name = $this->db->table_name('session', true); |
| | | } |
| | | } |
| | | |
| | |
| | | public function db_read($key) |
| | | { |
| | | $sql_result = $this->db->query( |
| | | "SELECT vars, ip, changed, " . $this->db->now() . " AS ts" |
| | | . " FROM " . $this->db->table_name('session') |
| | | . " WHERE sess_id = ?", $key); |
| | | "SELECT `vars`, `ip`, `changed`, " . $this->db->now() . " AS ts" |
| | | . " FROM {$this->table_name} WHERE `sess_id` = ?", $key); |
| | | |
| | | if ($sql_result && ($sql_arr = $this->db->fetch_assoc($sql_result))) { |
| | | $this->time_diff = time() - strtotime($sql_arr['ts']); |
| | |
| | | */ |
| | | public function db_write($key, $vars) |
| | | { |
| | | $now = $this->db->now(); |
| | | $table = $this->db->table_name('session'); |
| | | $ts = microtime(true); |
| | | $now = $this->db->now(); |
| | | $ts = microtime(true); |
| | | |
| | | if ($this->nowrite) |
| | | return true; |
| | | |
| | | // no session row in DB (db_read() returns false) |
| | | if (!$this->key) { |
| | |
| | | $newvars = $this->_fixvars($vars, $oldvars); |
| | | |
| | | if ($newvars !== $oldvars) { |
| | | $this->db->query("UPDATE $table " |
| | | . "SET changed = $now, vars = ? WHERE sess_id = ?", |
| | | $this->db->query("UPDATE {$this->table_name} " |
| | | . "SET `changed` = $now, `vars` = ? WHERE `sess_id` = ?", |
| | | base64_encode($newvars), $key); |
| | | } |
| | | else if ($ts - $this->changed + $this->time_diff > $this->lifetime / 2) { |
| | | $this->db->query("UPDATE $table SET changed = $now" |
| | | . " WHERE sess_id = ?", $key); |
| | | $this->db->query("UPDATE {$this->table_name} SET `changed` = $now" |
| | | . " WHERE `sess_id` = ?", $key); |
| | | } |
| | | } |
| | | else { |
| | | $this->db->query("INSERT INTO $table (sess_id, vars, ip, created, changed)" |
| | | $this->db->query("INSERT INTO {$this->table_name}" |
| | | . " (`sess_id`, `vars`, `ip`, `created`, `changed`)" |
| | | . " VALUES (?, ?, ?, $now, $now)", |
| | | $key, base64_encode($vars), (string)$this->ip); |
| | | } |
| | |
| | | public function db_destroy($key) |
| | | { |
| | | if ($key) { |
| | | $this->db->query(sprintf("DELETE FROM %s WHERE sess_id = ?", |
| | | $this->db->table_name('session')), $key); |
| | | $this->db->query("DELETE FROM {$this->table_name} WHERE `sess_id` = ?", $key); |
| | | } |
| | | |
| | | return true; |
| | |
| | | |
| | | $newvars = $oldvars !== null ? $this->_fixvars($vars, $oldvars) : $vars; |
| | | |
| | | if ($newvars !== $oldvars || $ts - $this->changed > $this->lifetime / 2) { |
| | | if ($newvars !== $oldvars || $ts - $this->changed > $this->lifetime / 3) { |
| | | return $this->memcache->set($key, serialize(array('changed' => time(), 'ip' => $this->ip, 'vars' => $newvars)), |
| | | MEMCACHE_COMPRESSED, $this->lifetime); |
| | | MEMCACHE_COMPRESSED, $this->lifetime + 60); |
| | | } |
| | | |
| | | return true; |
| | |
| | | if ($this->gc_enabled) { |
| | | // just delete all expired sessions |
| | | if ($this->storage == 'db') { |
| | | $this->db->query("DELETE FROM " . $this->db->table_name('session') |
| | | . " WHERE changed < " . $this->db->now(-$this->gc_enabled)); |
| | | $this->db->query("DELETE FROM {$this->table_name}" |
| | | . " WHERE `changed` < " . $this->db->now(-$this->gc_enabled)); |
| | | } |
| | | |
| | | foreach ($this->gc_handlers as $fct) { |
| | |
| | | |
| | | $node = &$this->get_node(explode('.', $path), $_SESSION); |
| | | |
| | | if ($key !== null) $node[$key] = $value; |
| | | else $node[] = $value; |
| | | if ($key !== null) { |
| | | $node[$key] = $value; |
| | | $path .= '.' . $key; |
| | | } |
| | | else { |
| | | $node[] = $value; |
| | | } |
| | | |
| | | $this->appends[] = $path; |
| | | |
| | | // when overwriting a previously unset variable |
| | | if ($this->unsets[$path]) |
| | | unset($this->unsets[$path]); |
| | | } |
| | | |
| | | |
| | |
| | | public function kill() |
| | | { |
| | | $this->vars = null; |
| | | $this->ip = $_SERVER['REMOTE_ADDR']; // update IP (might have changed) |
| | | $this->ip = rcube_utils::remote_addr(); // update IP (might have changed) |
| | | $this->destroy(session_id()); |
| | | rcube_utils::setcookie($this->cookiename, '-del-', time() - 60); |
| | | } |
| | |
| | | */ |
| | | public function reload() |
| | | { |
| | | // collect updated data from previous appends |
| | | $merge_data = array(); |
| | | foreach ((array)$this->appends as $var) { |
| | | $path = explode('.', $var); |
| | | $value = $this->get_node($path, $_SESSION); |
| | | $k = array_pop($path); |
| | | $node = &$this->get_node($path, $merge_data); |
| | | $node[$k] = $value; |
| | | } |
| | | |
| | | if ($this->key && $this->memcache) |
| | | $data = $this->mc_read($this->key); |
| | | else if ($this->key) |
| | | $data = $this->db_read($this->key); |
| | | |
| | | if ($data) |
| | | if ($data) { |
| | | session_decode($data); |
| | | |
| | | // apply appends and unsets to reloaded data |
| | | $_SESSION = array_merge_recursive($_SESSION, $merge_data); |
| | | |
| | | foreach ((array)$this->unsets as $var) { |
| | | if (isset($_SESSION[$var])) { |
| | | unset($_SESSION[$var]); |
| | | } |
| | | else { |
| | | $path = explode('.', $var); |
| | | $k = array_pop($path); |
| | | $node = &$this->get_node($path, $_SESSION); |
| | | unset($node[$k]); |
| | | } |
| | | } |
| | | } |
| | | |
| | | } |
| | | |
| | | /** |
| | |
| | | function check_auth() |
| | | { |
| | | $this->cookie = $_COOKIE[$this->cookiename]; |
| | | $result = $this->ip_check ? $_SERVER['REMOTE_ADDR'] == $this->ip : true; |
| | | $result = $this->ip_check ? rcube_utils::remote_addr() == $this->ip : true; |
| | | |
| | | if (!$result) { |
| | | $this->log("IP check failed for " . $this->key . "; expected " . $this->ip . "; got " . $_SERVER['REMOTE_ADDR']); |
| | | $this->log("IP check failed for " . $this->key . "; expected " . $this->ip . "; got " . rcube_utils::remote_addr()); |
| | | } |
| | | |
| | | if ($result && $this->_mkcookie($this->now) != $this->cookie) { |