Imported code from old repository

2022-11-22 15:46:36 +01:00
parent 976fdc0199
commit 77cf9e05f1
91 changed files with 18969 additions and 2 deletions
@@ -0,0 +1,81 @@
+<?php
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+namespace CloudObjects\PhpMAE;
+
+use Defuse\Crypto\Key, Defuse\Crypto\Crypto;
+use Symfony\Component\HttpFoundation\Request, Symfony\Component\HttpFoundation\Response,
+    Symfony\Component\HttpFoundation\Cookie;
+
+/**
+ * The session identifies an individual over multiple requests and allows
+ * storing encrypted information in a cookie.
+ */
+class Session implements \ArrayAccess {
+    
+    private $id;
+    private $key;    
+    private $data;
+
+    public static function createFromRequestWithKey(Request $request, $keyString) {
+        $session = new Session;
+
+        if ($request->cookies->has('session')) {
+            try {
+                // attempt to restore session from encrypted data
+                $key = Key::loadFromAsciiSafeString($keyString);
+                $sessionContent = json_decode(Crypto::decrypt($request->cookies->get('session'), $key), true);
+                if (!isset($sessionContent['id']) || !isset($sessionContent['data']))
+                    throw new \Exception;
+                $session->id = $sessionContent['id'];
+                $session->data = $sessionContent['data'];
+            } catch (\Exception $e) {
+                // session could not be restored, create a new one anonymously
+                $session->id = uniqid();
+                $session->data = [];
+            }
+        } else {
+            // no session found, create one
+            $session->id = uniqid();
+            $session->data = [];
+        }
+
+        $session->key = $keyString;
+
+        return $session;
+    }
+
+    public function persistToResponse(Response $response) {
+        $key = Key::loadFromAsciiSafeString($this->key);
+        $sessionContent = json_encode([
+            'id' => $this->id,
+            'data' => $this->data
+        ]);
+        $response->headers->setCookie(new Cookie('session',
+            Crypto::encrypt($sessionContent, $key),
+            new \DateTime('1 hour')));
+    }
+
+    public function getId() {
+        return $this->id;
+    }
+
+    public function offsetExists($offset) {
+        return isset($this->data[$offset]);
+    }
+
+    public function offsetGet($offset) {
+        return $this->data[$offset];
+    }
+    
+    public function offsetSet($offset, $value) {
+        $this->data[$offset] = $value;
+    }
+
+    public function offsetUnset($offset) {
+        unset($this->data[$offset]);
+    }
+}