refactor lib2 cookie class

htdocs/lib2/SessionDataCookie.class.php

@@ -0,0 +1,111 @@
+<?php
+/***************************************************************************
+ *  For license information see doc/license.txt
+ *
+ *  Unicode Reminder メモ
+ *
+ *  Session data handling with cookies
+ *  See doc/cookies.txt for more information in cookies.
+ ***************************************************************************/
+require_once 'SessionDataInterface.class.php';
+
+class SessionDataCookie implements SessionDataInterface
+{
+    public $changed = false;
+    public $values = array();
+
+    public function __construct()
+    {
+        global $opt;
+
+        if (isset($_COOKIE[$opt['session']['cookiename'] . 'data'])) {
+            //get the cookievars-array
+            $decoded = base64_decode($_COOKIE[$opt['session']['cookiename'] . 'data']);
+
+            if ($decoded !== false) {
+                // TODO replace by safe function
+                $this->values = @unserialize($decoded);
+                if (!is_array($this->values)) {
+                    $this->values = array();
+                }
+            } else {
+                $this->values = array();
+            }
+        }
+    }
+
+    public function set($name, $value, $default = null)
+    {
+        // Store cookie value in internal array. OcSmarty will call this->header()
+        // to actually set the cookie.
+        if (!isset($this->values[$name]) || $this->values[$name] != $value) {
+            if ($value == $default) {
+                if (isset($this->values[$name])) {
+                    unset($this->values[$name]);
+                    $this->changed = true;
+                }
+            } else {
+                $this->values[$name] = $value;
+                $this->changed = true;
+            }
+        }
+    }
+
+    public function get($name, $default = null)
+    {
+        return isset($this->values[$name]) ? $this->values[$name] : $default;
+    }
+
+    public function is_set($name)
+    {
+        return isset($this->values[$name]);
+    }
+
+    public function un_set($name)
+    {
+        if (isset($this->values[$name])) {
+            unset($this->values[$name]);
+            $this->changed = true;
+        }
+    }
+
+    public function header()
+    {
+        global $opt;
+
+        if ($this->changed === true) {
+            if (count($this->values) === 0) {
+                setcookie(
+                    $opt['session']['cookiename'] . 'data',
+                    false,
+                    time() + 31536000,
+                    $opt['session']['path'],
+                    $opt['session']['domain'],
+                    0
+                );
+            } else {
+                setcookie(
+                    $opt['session']['cookiename'] . 'data',
+                    // TODO replace by safe function
+                    base64_encode(serialize($this->values)),
+                    time() + 31536000,
+                    $opt['session']['path'],
+                    $opt['session']['domain'],
+                    0
+                );
+            }
+        }
+    }
+
+    public function debug()
+    {
+        print_r($this->values);
+        exit;
+    }
+
+    public function close()
+    {
+        // TODO really nothing?
+        // maybe destroy cookies here
+    }
+}

htdocs/lib2/SessionDataInterface.class.php

@@ -0,0 +1,27 @@
+<?php
+/***************************************************************************
+ *  For license information see doc/license.txt
+ *
+ *  Unicode Reminder メモ
+ *
+ *  Interface for session data handling
+ ***************************************************************************/
+
+interface SessionDataInterface
+{
+    public function __construct();
+
+    public function set($name, $value, $default = null);
+
+    public function get($name, $default = null);
+
+    public function is_set($name);
+
+    public function un_set($name);
+
+    public function header();
+
+    public function debug();
+
+    public function close();
+}

htdocs/lib2/SessionDataNative.class.php

@@ -0,0 +1,135 @@
+<?php
+/***************************************************************************
+ *  For license information see doc/license.txt
+ *
+ *  Unicode Reminder メモ
+ *
+ *  Session data handling with build-in php session
+ ***************************************************************************/
+require_once 'SessionDataInterface.class.php';
+
+/**
+ * Class SessionDataNative
+ * Not for productive usage!! Implementation not finished yet
+ */
+class SessionDataNative implements SessionDataInterface
+{
+    public $changed = false;
+    public $values = array();
+    public $session_initialized = false;
+
+    public function __construct()
+    {
+        if (isset($_REQUEST['SESSION']) && $_REQUEST['SESSION'] != '') {
+            $this->init_session();
+        }
+    }
+
+    private function init_session()
+    {
+        global $opt;
+
+        if ($this->session_initialized !== true) {
+            session_name('SESSION');
+            session_set_cookie_params($opt['session']['expire']['cookie'], $opt['session']['path'],
+                $opt['session']['domain']);
+            session_start();
+
+            if ($opt['session']['check_referer']) {
+                if (isset($_SERVER['REFERER'])) {
+                    // TODO fix the following if statement, seems corrupted
+                    if (strtolower(substr('http' + strstr($_SERVER['REFERER'], '://'), 0,
+                            strlen($opt['page']['absolute_http_url']))) != strtolower($opt['page']['absolute_http_url'])
+                    ) {
+                        $this->createNewSession();
+                    }
+                }
+            }
+
+            if ((isset($_GET['SESSION']) || isset($_POST['SESSION'])) && count($_SESSION) > 0) {
+                // compare and set timestamp
+                if (isset($_SESSION['lastcall'])) {
+                    if (abs(time() - $_SESSION['lastcall']) > $opt['session']['expire']['url']) {
+                        $this->createNewSession();
+                    }
+                }
+
+                $_SESSION['lastcall'] = time();
+            }
+
+            $this->session_initialized = true;
+        }
+    }
+
+    private function createNewSession()
+    {
+        session_regenerate_id();
+        $locale = isset($_SESSION['locale']) ? $_SESSION['locale'] : '';
+        foreach ($_SESSION as $k => $v) {
+            unset($_SESSION[$k]);
+        }
+        if ($locale != '') {
+            $_SESSION['locale'] = $locale;
+        }
+    }
+
+    public function set($name, $value, $default = null)
+    {
+        if (!isset($_SESSION[$name]) || $_SESSION[$name] != $value) {
+            if ($value == $default) {
+                if (isset($_SESSION[$name])) {
+                    unset($_SESSION[$name]);
+                    $this->changed = true;
+                }
+            } else {
+                $this->init_session();
+                $_SESSION[$name] = $value;
+                $this->changed = true;
+            }
+        }
+    }
+
+    public function get($name, $default = null)
+    {
+        return isset($_SESSION[$name]) ? $_SESSION[$name] : $default;
+    }
+
+    public function is_set($name)
+    {
+        return isset($_SESSION[$name]);
+    }
+
+    public function un_set($name)
+    {
+        if (isset($_SESSION[$name])) {
+            unset($_SESSION[$name]);
+            $this->changed = true;
+        }
+    }
+
+    public function header()
+    {
+        // is automatically sent
+    }
+
+    public function debug()
+    {
+        print_r($_SESSION);
+        exit;
+    }
+
+    public function close()
+    {
+        if ($this->session_initialized === true) {
+            if (count($_SESSION) === 0) {
+                try {
+                    session_destroy();
+                } catch (Exception $e) {
+                    // @todo implement logging
+                }
+            } else {
+                session_write_close();
+            }
+        }
+    }
+}