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IdrinthIdrinth
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building basic structure
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‎.gitignore

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/nbproject/

‎Controller/Session.php

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<?php
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namespace Idrinth\PhpMemcachedSession\Controller;
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class Session implements \SessionHandlerInterface {
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/**
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*
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* @return boolean
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*/
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public function close() {
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return true;
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}
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/**
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*
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* @return string
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*/
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public function create_sid() {
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return sha1(mt_rand() . microtime() . getmypid() . ini_get('idrinth_session.sid_pepper'));
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}
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/**
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*
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* @param string $session_id
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*/
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public function destroy($session_id) {
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return \Idrinth\PhpMemcachedSession\Model\Session::get($session_id)->delete();
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}
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/**
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*
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* @param int $maxlifetime
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* @return boolean
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*/
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public function gc($maxlifetime) {
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return true;
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}
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/**
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*
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* @param string $save_path
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* @param string $name
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* @return boolean
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*/
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public function open($save_path,$name) {
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ini_set('session.serialize_handler','php_serialize');
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return true;
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}
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/**
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*
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* @param string $session_id
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* @return string
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*/
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public function read($session_id) {
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return \Idrinth\PhpMemcachedSession\Model\Session::get($session_id)->load();
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}
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/**
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*
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* @param string $session_id
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* @param string $session_data
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* @return boolean
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*/
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public function write($session_id,$session_data) {
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return \Idrinth\PhpMemcachedSession\Model\Session::get($session_id)->save($session_data);
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}
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}

‎Model/Session.php

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<?php
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namespace Idrinth\PhpMemcachedSession\Model;
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class Session {
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/**
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*
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* @var string
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*/
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protected $agent;
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/**
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*
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* @var \Idrinth\PhpMemcachedSession\Repository\MemCache
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*/
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protected $repository;
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/**
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*
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* @var string
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*/
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protected $original = '';
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/**
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*
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* @var string
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*/
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protected $id;
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/**
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*
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* @var \Idrinth\PhpMemcachedSession\Model\Session
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*/
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protected static $instance;
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/**
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*
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* @param string $id
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*/
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protected function __construct($id) {
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$this->id = $id;
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$this->agent = $this->getUserAgent();
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$this->repository = new \Idrinth\PhpMemcachedSession\Repository\MemCache();
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}
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/**
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*
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* @return string a serialized string
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*/
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public function load() {
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$this->original = $this->getByKey([$this->agent,$this->id]) . '';
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return $this->original;
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}
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/**
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*
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* @param string $data
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* @return boolean was it saved?
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*/
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public function save($data) {
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if($data === $this->original) {
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return true;//nothing to change
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}
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return $this->repository->updateByKey([$this->agent,$this->id],$data);
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}
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/**
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* deletes the current data and instance
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*/
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public function delete() {
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$this->repository->removeByKey([$this->agent,$this->id]);
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self::$instance = null;
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}
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/**
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*
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* @return string
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*/
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private function getUserAgent() {
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$agent = $_SERVER['HTTP_USER_AGENT'];
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if(strpos($agent,'Opera') || strpos($agent,'OPR/')) {
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return 'opera';
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}
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if(strpos($agent,'Edge')) {
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return 'edge';
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}
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if(strpos($agent,'Chrome')) {
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return 'chrome';
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}
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if(strpos($agent,'Safari')) {
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return 'safari';
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}
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if(strpos($agent,'Firefox')) {
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return 'firefox';
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}
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if(strpos($agent,'MSIE') || strpos($agent,'Trident/7')) {
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return 'internet explorer';
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}
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return trim(preg_replace('/(\/|\(|[0-9]|V[0-9]).*/i','',$agent));
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}
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/**
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*
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* @param string $id
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* @return \Idrinth\PhpMemcachedSession\Model\Session
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*/
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public static function get($id) {
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if(!self::$instance) {
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self::$instance = new self($id);
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}
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return self::$instance;
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}
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}

‎Repository/MemCache.php

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<?php
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namespace Idrinth\PhpMemcachedSession\Repository;
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class MemCache {
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/**
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*
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* @var int
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*/
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protected $duration = 3600;
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/**
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*
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* @var string[]
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*/
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protected $prefix = array('idrinth','memcached-session');
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/**
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*
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* @var \Memcached
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*/
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protected $memcache;
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/**
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* @return \Idrinth\PhpMemcachedSession\Repository\MemCache
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*/
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public function __construct() {
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$this->memcache = new \Memcached();
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$this->duration = ini_get("session.gc_maxlifetime");
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if(count($this->memcache->getServerList()) == 0) {
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$this->memcache->addServer(ini_get('idrinth_session.memcache_server'),ini_get('idrinth_session.memcache_port'));
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}
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if(!$this->duration) {
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$this->duration = 3600;
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}
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return $this;
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}
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/**
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*
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* @param string[] $params
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* @return string
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*/
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protected function getKey($params = array()) {
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return trim(implode('.',$this->prefix) . '.' . implode('.',$params),'.');
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}
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/**
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*
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* @param array $params
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* @return string
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*/
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public function getByKey(array $params) {
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$value = $this->memcache->get($this->getKey($params));
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if($value) {
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$this->memcache->touch($this->getKey($params),time() + $this->duration);
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}
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return $value;
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}
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/**
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*
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* @param string[] $params
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* @param string $value
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* @return boolean
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*/
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public function setByKey(array $params,$value) {
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return $this->memcache->set($this->getKey($params),$value,time() + $this->duration);
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}
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/**
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*
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* @param string[] $params
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* @return boolean
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*/
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public function removeByKey(array $params) {
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return $this->memcache->set($this->getKey($params),'',1);
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}
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}

‎packages.json

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{
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"name": "idrinth/php-memcached-session",
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"description": "Provides a sessionhandler for php and memcached",
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"license": "MIT",
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"type": "library",
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"keywords": ["session", "php", "memcached"],
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"homepage": "https://github.com/Idrinth/PhpMemcachedSession",
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"authors": [
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{
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"name": "Björn Büttner",
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"email": "[email protected]",
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"homepage": "http://idrinth.de",
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"role": "Developer"
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}
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],
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"autoload": {
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"psr-4": {
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"Idrinth\\PhpMemcachedSession\\": ""
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}
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},
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"support": {
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"issues": "https://github.com/Idrinth/PhpMemcachedSession/issues",
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"source": "https://github.com/Idrinth/PhpMemcachedSession"
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},
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"require": {
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"php": "^5.6.0",
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"ext-memcached": "*"
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}
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}

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