Add new Session classes in src/

This commit is contained in:
Hypolite Petovan 2018-02-03 00:42:00 -05:00
parent 2a00ac790f
commit ae68196e8d
3 changed files with 254 additions and 0 deletions

57
src/Core/Session.php Normal file
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<?php
/**
* @file src/Core/Session.php
*/
namespace Friendica\Core;
use Friendica\Core\Session\DatabaseSessionHandler;
use Friendica\Core\Session\MemcacheSessionHandler;
/**
* High-level Session service class
*
* @author Hypolite Petovan <mrpetovan@gmail.com>
*/
class Session
{
public static $exists = false;
public static $expire = 180000;
public static function init()
{
ini_set('session.gc_probability', 50);
ini_set('session.use_only_cookies', 1);
ini_set('session.cookie_httponly', 1);
if (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {
ini_set('session.cookie_secure', 1);
}
if (!Config::get('system', 'disable_database_session')) {
$memcache = Cache::memcache();
if (is_object($memcache)) {
$SessionHandler = new MemcacheSessionHandler($memcache);
} else {
$SessionHandler = new DatabaseSessionHandler();
}
session_set_save_handler($SessionHandler);
}
}
public static function exists($name)
{
return isset($_SESSION[$name]);
}
public static function get($name)
{
return defaults($_SESSION, $name, null);
}
public static function set($name, $value)
{
$_SESSION[$name] = $value;
}
}

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<?php
namespace Friendica\Core\Session;
use Friendica\BaseObject;
use Friendica\Core\Session;
use Friendica\Database\DBM;
use SessionHandlerInterface;
use dba;
require_once 'boot.php';
require_once 'include/dba.php';
require_once 'include/text.php';
/**
* SessionHandler using database
*
* @author Hypolite Petovan <mrpetovan@gmail.com>
*/
class DatabaseSessionHandler extends BaseObject implements SessionHandlerInterface
{
public function open($save_path, $session_name)
{
return true;
}
public function read($session_id)
{
if (!x($session_id)) {
return '';
}
$session = dba::selectFirst('session', ['data'], ['sid' => $session_id]);
if (DBM::is_result($session)) {
Session::$exists = true;
return $session['data'];
}
logger("no data for session $session_id", LOGGER_TRACE);
return '';
}
/**
* @brief Standard PHP session write callback
*
* This callback updates the DB-stored session data and/or the expiration depending
* on the case. Uses the Session::expire global for existing session, 5 minutes
* for newly created session.
*
* @param string $session_id Session ID with format: [a-z0-9]{26}
* @param string $session_data Serialized session data
* @return boolean Returns false if parameters are missing, true otherwise
*/
public function write($session_id, $session_data)
{
if (!$session_id) {
return false;
}
if (!$session_data) {
return true;
}
$expire = time() + Session::$expire;
$default_expire = time() + 300;
if (Session::$exists) {
$fields = ['data' => $session_data, 'expire' => $expire];
$condition = ["`sid` = ? AND (`data` != ? OR `expire` != ?)", $session_id, $session_data, $expire];
dba::update('session', $fields, $condition);
} else {
$fields = ['sid' => $session_id, 'expire' => $default_expire, 'data' => $session_data];
dba::insert('session', $fields);
}
return true;
}
public function close()
{
return true;
}
public function destroy($id)
{
dba::delete('session', ['sid' => $id]);
return true;
}
public function gc($maxlifetime)
{
dba::delete('session', ["`expire` < ?", time()]);
return true;
}
}

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<?php
namespace Friendica\Core\Session;
use Friendica\BaseObject;
use Friendica\Core\Session;
use SessionHandlerInterface;
use Memcache;
require_once 'boot.php';
require_once 'include/text.php';
/**
* SessionHandler using Memcache
*
* @author Hypolite Petovan <mrpetovan@gmail.com>
*/
class MemcacheSessionHandler extends BaseObject implements SessionHandlerInterface
{
/**
* @var Memcache
*/
private $memcache = null;
/**
*
* @param Memcache $memcache
*/
public function __construct(Memcache $memcache)
{
$this->memcache = $memcache;
}
public function open($save_path, $session_name)
{
return true;
}
public function read($session_id)
{
if (!x($session_id)) {
return '';
}
$data = $this->memcache->get(self::getApp()->get_hostname() . ":session:" . $session_id);
if (!is_bool($data)) {
Session::$exists = true;
return $data;
}
logger("no data for session $session_id", LOGGER_TRACE);
return '';
}
/**
* @brief Standard PHP session write callback
*
* This callback updates the stored session data and/or the expiration depending
* on the case. Uses the Session::expire for existing session, 5 minutes
* for newly created session.
*
* @param string $session_id Session ID with format: [a-z0-9]{26}
* @param string $session_data Serialized session data
* @return boolean Returns false if parameters are missing, true otherwise
*/
public function write($session_id, $session_data)
{
if (!$session_id) {
return false;
}
if (!$session_data) {
return true;
}
$expire = time() + Session::$expire;
$this->memcache->set(
self::getApp()->get_hostname() . ":session:" . $session_id,
$session_data,
MEMCACHE_COMPRESSED,
$expire
);
return true;
}
public function close()
{
return true;
}
public function destroy($id)
{
$this->memcache->delete(self::getApp()->get_hostname() . ":session:" . $id);
return true;
}
public function gc($maxlifetime)
{
return true;
}
}