From 491ee376517cded3c9c8d2389e3f9f21daa1a407 Mon Sep 17 00:00:00 2001
From: Igor Scheller <igor.scheller@igorshp.de>
Date: Fri, 28 Dec 2018 03:28:33 +0100
Subject: Don't save sessions permanently on api and metrics paths

closes #530 (Session on API calls)
---
 src/Middleware/RouteDispatcher.php               |  4 +-
 src/Middleware/SessionHandler.php                | 59 ++++++++++++++++++++++++
 src/Middleware/SessionHandlerServiceProvider.php | 24 ++++++++++
 3 files changed, 86 insertions(+), 1 deletion(-)
 create mode 100644 src/Middleware/SessionHandler.php
 create mode 100644 src/Middleware/SessionHandlerServiceProvider.php

(limited to 'src/Middleware')

diff --git a/src/Middleware/RouteDispatcher.php b/src/Middleware/RouteDispatcher.php
index 24a7906d..c20eba4b 100644
--- a/src/Middleware/RouteDispatcher.php
+++ b/src/Middleware/RouteDispatcher.php
@@ -50,7 +50,8 @@ class RouteDispatcher implements MiddlewareInterface
             $path = $request->getPathInfo();
         }
 
-        $route = $this->dispatcher->dispatch($request->getMethod(), urldecode($path));
+        $path = urldecode($path);
+        $route = $this->dispatcher->dispatch($request->getMethod(), $path);
 
         $status = $route[0];
         if ($status == FastRouteDispatcher::NOT_FOUND) {
@@ -70,6 +71,7 @@ class RouteDispatcher implements MiddlewareInterface
 
         $routeHandler = $route[1];
         $request = $request->withAttribute('route-request-handler', $routeHandler);
+        $request = $request->withAttribute('route-request-path', $path);
 
         $vars = $route[2];
         foreach ($vars as $name => $value) {
diff --git a/src/Middleware/SessionHandler.php b/src/Middleware/SessionHandler.php
new file mode 100644
index 00000000..8c53b0fd
--- /dev/null
+++ b/src/Middleware/SessionHandler.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace Engelsystem\Middleware;
+
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+use Psr\Http\Server\MiddlewareInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+use Symfony\Component\HttpFoundation\Session\Storage\NativeSessionStorage;
+use Symfony\Component\HttpFoundation\Session\Storage\SessionStorageInterface;
+
+class SessionHandler implements MiddlewareInterface
+{
+    /** @var SessionStorageInterface */
+    protected $session;
+
+    /** @var string[] */
+    protected $paths = [];
+
+    /**
+     * @param SessionStorageInterface $session
+     * @param array                   $paths
+     */
+    public function __construct(SessionStorageInterface $session, array $paths = [])
+    {
+        $this->paths = $paths;
+        $this->session = $session;
+    }
+
+    /**
+     * @param ServerRequestInterface  $request
+     * @param RequestHandlerInterface $handler
+     * @return ResponseInterface
+     */
+    public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
+    {
+        $return = $handler->handle($request);
+
+        $cookies = $request->getCookieParams();
+        if (
+            $this->session instanceof NativeSessionStorage
+            && in_array($request->getAttribute('route-request-path'), $this->paths)
+            && !isset($cookies[$this->session->getName()])
+        ) {
+            $this->destroyNative();
+        }
+
+        return $return;
+    }
+
+    /**
+     * @return bool
+     * @codeCoverageIgnore
+     */
+    protected function destroyNative()
+    {
+        return session_destroy();
+    }
+}
diff --git a/src/Middleware/SessionHandlerServiceProvider.php b/src/Middleware/SessionHandlerServiceProvider.php
new file mode 100644
index 00000000..aefcb674
--- /dev/null
+++ b/src/Middleware/SessionHandlerServiceProvider.php
@@ -0,0 +1,24 @@
+<?php
+
+namespace Engelsystem\Middleware;
+
+use Engelsystem\Container\ServiceProvider;
+
+class SessionHandlerServiceProvider extends ServiceProvider
+{
+    public function register()
+    {
+        $this->app
+            ->when(SessionHandler::class)
+            ->needs('$paths')
+            ->give(function () {
+                return [
+                    '/api',
+                    '/ical',
+                    '/metrics',
+                    '/shifts-json-export',
+                    '/stats',
+                ];
+            });
+    }
+}
-- 
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