config/defaults.inc.php | ●●●●● patch | view | raw | blame | history | |
program/lib/Roundcube/rcube.php | ●●●●● patch | view | raw | blame | history | |
program/lib/Roundcube/rcube_session.php | ●●●●● patch | view | raw | blame | history | |
program/lib/Roundcube/rcube_session_db.php | ●●●●● patch | view | raw | blame | history | |
program/lib/Roundcube/rcube_session_memcache.php | ●●●●● patch | view | raw | blame | history | |
program/lib/Roundcube/rcube_session_php.php | ●●●●● patch | view | raw | blame | history | |
program/lib/Roundcube/rcube_session_redis.php | ●●●●● patch | view | raw | blame | history |
config/defaults.inc.php
@@ -374,9 +374,14 @@ // Session path. Defaults to PHP session.cookie_path setting. $config['session_path'] = null; // Backend to use for session storage. Can either be 'db' (default), 'memcache' or 'php' // Backend to use for session storage. Can either be 'db' (default), 'redis', 'memcache', or 'php' // // If set to 'memcache', a list of servers need to be specified in 'memcache_hosts' // Make sure the Memcache extension (http://pecl.php.net/package/memcache) version >= 2.0.0 is installed // // If set to 'redis', a server needs to be specified in 'redis_hosts' // Make sure the Redis extension (http://pecl.php.net/package/redis) version >= 2.0.0 is installed // // Setting this value to 'php' will use the default session save handler configured in PHP $config['session_storage'] = 'db'; @@ -397,6 +402,13 @@ // See http://php.net/manual/en/memcache.addserver.php $config['memcache_retry_interval'] = 15; // use this for accessing redis // currently only one host is supported. cluster support may come in a future release. // you can pass 4 fields, host, port, database and password. // unset fields will be set to the default values host=127.0.0.1, port=6379, database=0, password= (empty) $config['redis_hosts'] = null; // e.g. array( 'localhost:6379' ); array( '192.168.1.1:6379:1:secret' ); // check client IP in session authorization $config['ip_check'] = false; program/lib/Roundcube/rcube.php
@@ -522,9 +522,12 @@ ini_set('session.cookie_httponly', 1); // use database for storing session data $this->session = new rcube_session($this->get_dbh(), $this->config); $storage = $this->config->get('session_storage', 'db'); $this->session = $this->get_session($storage); // register default gc handler $this->session->register_gc_handler(array($this, 'gc')); $this->session->set_secret($this->config->get('des_key') . dirname($_SERVER['SCRIPT_NAME'])); $this->session->set_ip_check($this->config->get('ip_check')); @@ -534,10 +537,32 @@ // start PHP session (if not in CLI mode) if ($_SERVER['REMOTE_ADDR']) { $this->session->start(); $this->session->start($this->config); } } /** * get an rcube_session instance * * @return rcube_session */ private function get_session($storage) { // class name for this storage $class = "rcube_session_" . $storage; // try to instantiate class if(class_exists($class)) { return new $class(); } // no storage found, raise error rcube::raise_error(array('code' => 604, 'type' => 'session', 'line' => __LINE__, 'file' => __FILE__, 'message' => "Failed to find session driver. Check session_storage config option"), true, true); } /** * Garbage collector - cache/temp cleaner program/lib/Roundcube/rcube_session.php
@@ -19,33 +19,30 @@ */ /** * Class to provide database supported session storage * Abstract class to provide database supported session storage * * @package Framework * @subpackage Core * @author Thomas Bruederli <roundcube@gmail.com> * @author Aleksander Machniak <alec@alec.pl> */ class rcube_session abstract class rcube_session { private $db; private $ip; private $start; private $changed; private $time_diff = 0; private $reloaded = false; private $appends = array(); private $unsets = array(); private $gc_handlers = array(); private $cookiename = 'roundcube_sessauth'; private $vars; private $key; private $now; private $secret = ''; private $ip_check = false; private $logging = false; private $storage; private $memcache; protected $key; protected $ip; protected $changed; protected $start; protected $time_diff = 0; protected $reloaded = false; protected $appends = array(); protected $unsets = array(); protected $gc_handlers = array(); protected $cookiename = 'roundcube_sessauth'; protected $vars; protected $now; protected $secret = ''; protected $ip_check = false; protected $logging = false; /** * Blocks session data from being written to database. @@ -54,13 +51,30 @@ */ public $nowrite = false; /** * register session handler */ public function register_session_handler() { ini_set('session.serialize_handler', 'php'); // set custom functions for PHP session management session_set_save_handler( array($this, 'open'), array($this, 'close'), array($this, 'read'), array($this, 'sess_write'), array($this, 'destroy'), array($this, 'gc') ); } /** * Default constructor * Wrapper for session_start() */ public function __construct($db, $config) public function start($config) { $this->db = $db; $this->start = microtime(true); $this->ip = rcube_utils::remote_addr(); $this->logging = $config->get('log_session', false); @@ -68,83 +82,43 @@ $lifetime = $config->get('session_lifetime', 1) * 60; $this->set_lifetime($lifetime); // use memcache backend $this->storage = $config->get('session_storage', 'db'); if ($this->storage == 'memcache') { $this->memcache = rcube::get_instance()->get_memcache(); session_start(); } // set custom functions for PHP session management if memcache is available if ($this->memcache) { ini_set('session.serialize_handler', 'php'); /** * Abstract methods should be implemented by driver classes */ abstract function open($save_path, $session_name); abstract function close(); abstract function destroy($key); abstract function read($key); abstract function write($key, $vars); abstract function update($key, $newvars, $oldvars); session_set_save_handler( array($this, 'open'), array($this, 'close'), array($this, 'mc_read'), array($this, 'mc_write'), array($this, 'mc_destroy'), array($this, 'gc')); /** * session write handler. This calls the implementation methods for write/update after some initial checks. * * @param $key * @param $vars * @return bool */ public function sess_write($key, $vars) { if ($this->nowrite) return true; // check cache $oldvars = $this->get_cache($key); // if there are cached vars, update store, else insert new data if ($oldvars !== null) { $newvars = $this->_fixvars($vars, $oldvars); return $this->update($key, $newvars, $oldvars); } else { rcube::raise_error(array('code' => 604, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, 'message' => "Failed to connect to memcached. Please check configuration"), true, true); return $this->write($key, $vars); } } else if ($this->storage != 'php') { ini_set('session.serialize_handler', 'php'); // set custom functions for PHP session management session_set_save_handler( array($this, 'open'), array($this, 'close'), array($this, 'db_read'), array($this, 'db_write'), array($this, 'db_destroy'), array($this, 'gc')); $this->table_name = $this->db->table_name('session', true); } } /** * Wrapper for session_start() */ public function start() { session_start(); // copy some session properties to object vars if ($this->storage == 'php') { $this->key = session_id(); $this->ip = $_SESSION['__IP']; $this->changed = $_SESSION['__MTIME']; } } public function open($save_path, $session_name) { return true; } public function close() { return true; } /** * Delete session data for the given key * * @param string Session ID */ public function destroy($key) { return $this->memcache ? $this->mc_destroy($key) : $this->db_destroy($key); } @@ -153,11 +127,6 @@ */ public function write_close() { if ($this->storage == 'php') { $_SESSION['__IP'] = $this->ip; $_SESSION['__MTIME'] = time(); } session_write_close(); // write_close() is called on script shutdown, see rcube::shutdown() @@ -166,91 +135,10 @@ $this->gc_shutdown(); } /** * Read session data from database * * @param string Session ID * * @return string Session vars */ public function db_read($key) { $sql_result = $this->db->query( "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']); $this->changed = strtotime($sql_arr['changed']); $this->ip = $sql_arr['ip']; $this->vars = base64_decode($sql_arr['vars']); $this->key = $key; return !empty($this->vars) ? (string) $this->vars : ''; } return null; } /** * Save session data. * handler for session_read() * * @param string Session ID * @param string Serialized session vars * * @return boolean True on success */ public function db_write($key, $vars) { $now = $this->db->now(); $ts = microtime(true); if ($this->nowrite) return true; // no session row in DB (db_read() returns false) if (!$this->key) { $oldvars = null; } // use internal data from read() for fast requests (up to 0.5 sec.) else if ($key == $this->key && (!$this->vars || $ts - $this->start < 0.5)) { $oldvars = $this->vars; } else { // else read data again from DB $oldvars = $this->db_read($key); } if ($oldvars !== null) { $newvars = $this->_fixvars($vars, $oldvars); if ($newvars !== $oldvars) { $this->db->query("UPDATE {$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) { $this->db->query("UPDATE {$this->table_name} SET `changed` = $now" . " WHERE `sess_id` = ?", $key); } } else { $this->db->query("INSERT INTO {$this->table_name}" . " (`sess_id`, `vars`, `ip`, `created`, `changed`)" . " VALUES (?, ?, ?, $now, $now)", $key, base64_encode($vars), (string)$this->ip); } return true; } /** * Merge vars with old vars and apply unsets */ private function _fixvars($vars, $oldvars) protected function _fixvars($vars, $oldvars) { if ($oldvars !== null) { $a_oldvars = $this->unserialize($oldvars); @@ -280,97 +168,6 @@ return $newvars; } /** * Handler for session_destroy() * * @param string Session ID * * @return boolean True on success */ public function db_destroy($key) { if ($key) { $this->db->query("DELETE FROM {$this->table_name} WHERE `sess_id` = ?", $key); } return true; } /** * Read session data from memcache * * @param string Session ID * @return string Session vars */ public function mc_read($key) { if ($value = $this->memcache->get($key)) { $arr = unserialize($value); $this->changed = $arr['changed']; $this->ip = $arr['ip']; $this->vars = $arr['vars']; $this->key = $key; return !empty($this->vars) ? (string) $this->vars : ''; } return null; } /** * Save session data. * handler for session_read() * * @param string Session ID * @param string Serialized session vars * * @return boolean True on success */ public function mc_write($key, $vars) { $ts = microtime(true); // no session data in cache (mc_read() returns false) if (!$this->key) $oldvars = null; // use internal data for fast requests (up to 0.5 sec.) else if ($key == $this->key && (!$this->vars || $ts - $this->start < 0.5)) $oldvars = $this->vars; else // else read data again $oldvars = $this->mc_read($key); $newvars = $oldvars !== null ? $this->_fixvars($vars, $oldvars) : $vars; if ($newvars !== $oldvars || $ts - $this->changed > $this->lifetime / 3) { return $this->memcache->set($key, serialize(array('changed' => time(), 'ip' => $this->ip, 'vars' => $newvars)), MEMCACHE_COMPRESSED, $this->lifetime + 60); } return true; } /** * Handler for session_destroy() with memcache backend * * @param string Session ID * * @return boolean True on success */ public function mc_destroy($key) { if ($key) { // #1488592: use 2nd argument $this->memcache->delete($key, 0); } return true; } /** * Execute registered garbage collector routines */ @@ -380,7 +177,6 @@ // see rcube::shutdown() and rcube_session::write_close() return $this->gc_enabled = $maxlifetime; } /** * Register additional garbage collector functions @@ -422,6 +218,7 @@ * Generate and set new session id * * @param boolean $destroy If enabled the current session will be destroyed * @return bool */ public function regenerate_id($destroy=true) { @@ -431,6 +228,28 @@ $this->key = session_id(); return true; } /** * see if we have vars of this key already cached, and if so, return them. * * @param $key * @return null|array */ protected function get_cache($key) { // no session data in cache (read() returns false) if (!$this->key) { $cache = null; } // use internal data for fast requests (up to 0.5 sec.) else if ($key == $this->key && (!$this->vars || $ts - $this->start < 0.5)) { $cache = $this->vars; } else { // else read data again $cache = $this->read($key); } return $cache; } @@ -523,10 +342,9 @@ $node[$k] = $value; } if ($this->key && $this->memcache) $data = $this->mc_read($this->key); else if ($this->key) $data = $this->db_read($this->key); if($this->key) { $data = $this->read($this->key); } if ($data) { session_decode($data); @@ -553,7 +371,7 @@ * Returns a reference to the node in data array referenced by the given path. * e.g. ['compose','attachments'] will return $_SESSION['compose']['attachments'] */ private function &get_node($path, &$data_arr) protected function &get_node($path, &$data_arr) { $node = &$data_arr; if (!empty($path)) { @@ -570,7 +388,7 @@ /** * Serialize session data */ private function serialize($vars) protected function serialize($vars) { $data = ''; if (is_array($vars)) { @@ -589,7 +407,7 @@ * Unserialize session data * http://www.php.net/manual/en/function.session-decode.php#56106 */ private function unserialize($str) protected function unserialize($str) { $str = (string)$str; $endptr = strlen($str); @@ -788,6 +606,7 @@ * Create session cookie from session data * * @param int Time slot to use * @return string */ function _mkcookie($timeslot) { program/lib/Roundcube/rcube_session_db.php
New file @@ -0,0 +1,168 @@ <?php /* +-----------------------------------------------------------------------+ | This file is part of the Roundcube Webmail client | | Copyright (C) 2005-2014, The Roundcube Dev Team | | Copyright (C) 2011, Kolab Systems AG | | | | 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 | +-----------------------------------------------------------------------+ | Author: Thomas Bruederli <roundcube@gmail.com> | | Author: Aleksander Machniak <alec@alec.pl> | | Author: Cor Bosman <cor@roundcu.be> | +-----------------------------------------------------------------------+ */ /** * Class to provide database session storage * * @package Framework * @subpackage Core * @author Thomas Bruederli <roundcube@gmail.com> * @author Aleksander Machniak <alec@alec.pl> * @author Cor Bosman <cor@roundcu.be> */ class rcube_session_db extends rcube_session { private $db; private $table_name; public function __construct() { // get db instance $this->db = rcube::get_instance()->get_dbh(); // session table name $this->table_name = $this->db->table_name('session', true); // register sessions handler $this->register_session_handler(); // register db gc handler $this->register_gc_handler(array($this, 'gc_db')); } /** * @param $save_path * @param $session_name * @return bool */ public function open($save_path, $session_name) { return true; } /** * @return bool */ public function close() { return true; } /** * Handler for session_destroy() * * @param $key * @return bool */ public function destroy($key) { if ($key) { $this->db->query("DELETE FROM {$this->table_name} WHERE `sess_id` = ?", $key); } return true; } /** * Read session data from database * * @param string Session ID * * @return string Session vars */ public function read($key) { $sql_result = $this->db->query( "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']); $this->changed = strtotime($sql_arr['changed']); $this->ip = $sql_arr['ip']; $this->vars = base64_decode($sql_arr['vars']); $this->key = $key; return !empty($this->vars) ? (string) $this->vars : ''; } return null; } /** * insert new data into db session store * * @param $key * @param $vars * @return bool */ public function write($key, $vars) { $now = $this->db->now(); $this->db->query("INSERT INTO {$this->table_name}" . " (`sess_id`, `vars`, `ip`, `created`, `changed`)" . " VALUES (?, ?, ?, $now, $now)", $key, base64_encode($vars), (string)$this->ip); return true; } /** * update session data * * @param $key * @param $newvars * @param $oldvars * * @return bool */ public function update($key, $newvars, $oldvars) { $now = $this->db->now(); // if new and old data are not the same, update data // else update expire timestamp only when certain conditions are met if ($newvars !== $oldvars) { $this->db->query("UPDATE {$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) { $this->db->query("UPDATE {$this->table_name} SET `changed` = $now" . " WHERE `sess_id` = ?", $key); } return true; } /** * Clean up db sessions. */ public function gc_db() { // just clean all old sessions when this GC is called $this->db->query("DELETE FROM " . $this->db->table_name('session') . " WHERE changed < " . $this->db->now(-$this->gc_enabled)); } } program/lib/Roundcube/rcube_session_memcache.php
New file @@ -0,0 +1,140 @@ <?php /* +-----------------------------------------------------------------------+ | This file is part of the Roundcube Webmail client | | Copyright (C) 2005-2014, The Roundcube Dev Team | | Copyright (C) 2011, Kolab Systems AG | | | | 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 | +-----------------------------------------------------------------------+ | Author: Thomas Bruederli <roundcube@gmail.com> | | Author: Aleksander Machniak <alec@alec.pl> | | Author: Cor Bosman <cor@roundcu.be> | +-----------------------------------------------------------------------+ */ /** * Class to provide memcache session storage * * @package Framework * @subpackage Core * @author Thomas Bruederli <roundcube@gmail.com> * @author Aleksander Machniak <alec@alec.pl> * @author Cor Bosman <cor@roundcu.be> */ class rcube_session_memcache extends rcube_session { private $memcache; public function __construct() { $this->memcache = rcube::get_instance()->get_memcache(); if(! $this->memcache) { rcube::raise_error(array('code' => 604, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, 'message' => "Failed to connect to memcached. Please check configuration"), true, true); } // register sessions handler $this->register_session_handler(); } /** * @param $save_path * @param $session_name * @return bool */ public function open($save_path, $session_name) { return true; } /** * @return bool */ public function close() { return true; } /** * Handler for session_destroy() with memcache backend * * @param $key * @return bool */ public function destroy($key) { if ($key) { // #1488592: use 2nd argument $this->memcache->delete($key, 0); } return true; } /** * Read session data from memcache * * @param $key * @return null|string */ public function read($key) { if ($value = $this->memcache->get($key)) { $arr = unserialize($value); $this->changed = $arr['changed']; $this->ip = $arr['ip']; $this->vars = $arr['vars']; $this->key = $key; return !empty($this->vars) ? (string) $this->vars : ''; } return null; } /** * write data to memcache storage * * @param $key * @param $vars * @return bool */ public function write($key, $vars) { return $this->memcache->set($key, serialize(array('changed' => time(), 'ip' => $this->ip, 'vars' => $vars)), MEMCACHE_COMPRESSED, $this->lifetime + 60); } /** * update memcache session data * * @param $key * @param $newvars * @param $oldvars * @return bool */ public function update($key, $newvars, $oldvars) { $ts = microtime(true); if ($newvars !== $oldvars || $ts - $this->changed > $this->lifetime / 3) { return $this->memcache->set($key, serialize(array('changed' => time(), 'ip' => $this->ip, 'vars' => $newvars)), MEMCACHE_COMPRESSED, $this->lifetime + 60); } return true; } } program/lib/Roundcube/rcube_session_php.php
New file @@ -0,0 +1,71 @@ <?php /* +-----------------------------------------------------------------------+ | This file is part of the Roundcube Webmail client | | Copyright (C) 2005-2014, The Roundcube Dev Team | | Copyright (C) 2011, Kolab Systems AG | | | | Licensed under the GNU General Public License version 3 or | | any later version with exceptions for skins & plugins. | | See the README file for a full license statement. | | | | PURPOSE: | | Provide database supported session management | +-----------------------------------------------------------------------+ | Author: Thomas Bruederli <roundcube@gmail.com> | | Author: Aleksander Machniak <alec@alec.pl> | | Author: Cor Bosman <cor@roundcu.be> | +-----------------------------------------------------------------------+ */ /** * Class to provide native php session storage * * @package Framework * @subpackage Core * @author Thomas Bruederli <roundcube@gmail.com> * @author Aleksander Machniak <alec@alec.pl> * @author Cor Bosman <cor@roundcu.be> */ class rcube_session_php extends rcube_session { /** * native php sessions don't need a save handler * we do need to define abstract function implementations but they are not used. */ public function open($save_path, $session_name) {} public function close() {} public function destroy($key) {} public function read($key) {} public function write($key, $vars) {} public function update($key, $newvars, $oldvars) {} /** * Wrapper for session_write_close() */ public function write_close() { $_SESSION['__IP'] = $this->ip; $_SESSION['__MTIME'] = time(); parent::write_close(); } /** * Wrapper for session_start() */ public function start($config) { parent::start($config); $this->key = session_id(); $this->ip = $_SESSION['__IP']; $this->changed = $_SESSION['__MTIME']; } } program/lib/Roundcube/rcube_session_redis.php
New file @@ -0,0 +1,210 @@ <?php /* +-----------------------------------------------------------------------+ | This file is part of the Roundcube Webmail client | | Copyright (C) 2005-2014, The Roundcube Dev Team | | Copyright (C) 2011, Kolab Systems AG | | | | 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 | +-----------------------------------------------------------------------+ | Author: Thomas Bruederli <roundcube@gmail.com> | | Author: Aleksander Machniak <alec@alec.pl> | | Author: Cor Bosman <cor@roundcu.be> | +-----------------------------------------------------------------------+ */ /** * Class to provide redis session storage * * @package Framework * @subpackage Core * @author Cor Bosman <cor@roundcu.be> */ class rcube_session_redis extends rcube_session { private $redis; public function __construct() { // instantiate Redis object $this->redis = new Redis(); if (! $this->redis) { rcube::raise_error(array('code' => 604, 'type' => 'session', 'line' => __LINE__, 'file' => __FILE__, 'message' => "Failed to find Redis. Make sure php-redis is included"), true, true); } // get config instance $hosts = rcube::get_instance()->config->get('redis_hosts', array()); // host config is wrong if (!is_array($hosts) || empty($hosts) ) { rcube::raise_error(array('code' => 604, 'type' => 'session', 'line' => __LINE__, 'file' => __FILE__, 'message' => "Redis host not configured"), true, true); } // only allow 1 host for now until we support clustering if (count($hosts) > 1) { rcube::raise_error(array('code' => 604, 'type' => 'session', 'line' => __LINE__, 'file' => __FILE__, 'message' => "Redis cluster not yet supported"), true, true); } foreach($hosts as $config) { // explode individual fields list($host, $port, $database, $password) = array_pad(explode(':', $config, 4), 4, null); // set default values if not set $host = ($host !== null) ? $host : '127.0.0.1'; $port = ($port !== null) ? $port : 6379; $database = ($database !== null) ? $database : 0; if ($this->redis->connect($host, $port) === false) { rcube::raise_error( array( 'code' => 604, 'type' => 'session', 'line' => __LINE__, 'file' => __FILE__, 'message' => "Could not connect to Redis server. Please check host and port" ), true, true ); } if ($password != null && $this->redis->auth($password) === false) { rcube::raise_error( array( 'code' => 604, 'type' => 'session', 'line' => __LINE__, 'file' => __FILE__, 'message' => "Could not authenticate with Redis server. Please check password." ), true, true ); } if ($database != 0 && $this->redis->select($database) === false) { rcube::raise_error( array( 'code' => 604, 'type' => 'session', 'line' => __LINE__, 'file' => __FILE__, 'message' => "Could not select Redis database. Please check database setting." ), true, true ); } } // register sessions handler $this->register_session_handler(); } /** * @param $save_path * @param $session_name * @return bool */ public function open($save_path, $session_name) { return true; } /** * @return bool */ public function close() { return true; } /** * remove data from store * * @param $key * @return bool */ public function destroy($key) { if ($key) { $this->redis->del($key); } return true; } /** * read data from redis store * * @param $key * @return null */ public function read($key) { if ($value = $this->redis->get($key)) { $arr = unserialize($value); $this->changed = $arr['changed']; $this->ip = $arr['ip']; $this->vars = $arr['vars']; $this->key = $key; return !empty($this->vars) ? (string) $this->vars : ''; } return null; } /** * write data to redis store * * @param $key * @param $newvars * @param $oldvars * @return bool */ public function update($key, $newvars, $oldvars) { $ts = microtime(true); if ($newvars !== $oldvars || $ts - $this->changed > $this->lifetime / 3) { $this->redis->setex($key, $this->lifetime + 60, serialize(array('changed' => time(), 'ip' => $this->ip, 'vars' => $newvars))); } return true; } /** * write data to redis store * * @param $key * @param $vars * @return bool */ public function write($key, $vars) { return $this->redis->setex($key, $this->lifetime + 60, serialize(array('changed' => time(), 'ip' => $this->ip, 'vars' => $vars))); } }