Improved jwt logic

* No longer stores full token, but only payload.

README.md

@@ -34,24 +34,24 @@ $ ./mercureact.phar -c mercureact.conf
 
 ## ToDos
 
-* [ ] Read config from file
+* [x] Read config from file
 * [ ] Security Security Security
   * [x] Check JWTs on connect
   * [x] Check claims on subscribe and publish
-  * [ ] WebSocket authentication
+  * [x] Extract JWT claims to request attributes, instead of JWTToken
-  * [ ] Extract JWT claims to request attributes, instead of JWTToken
 * [x] Subscription/Topic manager
   * [x] Unify distribution
-  * [ ] Enumerate subscriptions and topics
+  * [x] Enumerate subscriptions and topics
 * [x] Publish events
 * [x] Server-Side Events distributor
   * [x] Distribute events over SSE
 * [ ] WebSocket distributor
+  * [ ] WebSocket authentication
   * [ ] Setup subscriptions
   * [ ] Dynamic subscriptions
   * [x] Distribute events over WS
 * [x] Break out HTTP middleware into classes
 * [ ] HTTP middleware unittests
 * [ ] Replay missed events based on event id
-* [ ] Figure out how to determine last event IDs
+* [x] Figure out how to determine last event IDs
 * [ ] Metrics endpoint

src/Broker/SseSubscriber.php

@@ -26,7 +26,12 @@ class SseSubscriber implements SubscriberInterface
 
     public function isAuthorized(): bool
     {
-        return $this->request->getAttribute('authorization') instanceof JWTToken;
+        return $this->request->getAttribute('authorized');
+    }
+
+    public function getPayload(): array
+    {
+        return $this->request->getAttribute('mercure.payload')??[];
     }
 
     public function getId(): string

src/Broker/TopicManager.php

@@ -69,7 +69,7 @@ class TopicManager
                     'topic' => $topic->getTopic(),
                     'subscriber' => $sub->getId(),
                     'active' => true,
-                    'payload' => null, // TODO populate from mercure.payload in JWT
+                    'payload' => $sub->getPayload(),
                 ];
             }
         }

src/Http/Middleware/MercureHandler.php

@@ -88,18 +88,14 @@ class MercureHandler
         }
 
         // Grab the JWT token from the requests authorization attribute
-        $tok = $request->getAttribute('authorization');
+        if ($request->getAttribute('authorized')) {
-        if ($tok instanceof JWTToken) {
+            $claims = $request->getAttribute('mercure.subscribe');
-            $claims = $tok->claims->getAll();
+            if (!$this->checkTopicClaims($topics, $claims)) {
-            if (isset($claims['mercure']['subscribe'])) {
-                $subscribeClaims = $claims['mercure']['subscribe'];
-                if (!$this->checkTopicClaims($topics, $subscribeClaims)) {
                 throw new SecurityException(
                     message: "Insufficient permissions for subscribe", 
                     code: SecurityException::ERR_NO_PERMISSION
                 );
             }
-            }
         } else {
             // Disallow if we don't allow anonymous subscribers. Note that anonymous
             // subscribers will not receive updates marked as private.
@@ -153,19 +149,15 @@ class MercureHandler
         }
 
         // Grab the JWT token from the requests authorization attribute
-        $tok = $request->getAttribute('authorization');
+        if ($request->getAttribute('authorized')) {
-        if ($tok instanceof JWTToken) {
+            $claims = $request->getAttribute('mercure.publish');
-            $claims = $tok->claims->getAll();
-            if (isset($claims['mercure']['publish'])) {
-                $publishClaims = $claims['mercure']['publish'];
             // check topic against publishClaims
-                if (!$this->checkTopicClaims($data['topic']??[], $publishClaims)) {
+            if (!$this->checkTopicClaims($data['topic']??[], $claims)) {
                 throw new SecurityException(
                     message: "Insufficient permissions for publish", 
                     code: SecurityException::ERR_NO_PERMISSION
                 );
             }
-            }
         } else {
             // reject if access denied
             throw new SecurityException(

src/Http/Middleware/SecurityMiddleware.php

@@ -61,11 +61,15 @@ class SecurityMiddleware
                     code: SecurityException::ERR_ACCESS_DENIED
                 );
             }
+            $claims = $tok->claims->getAll()['mercure']??[];
             return $request
-                ->withAttribute('authorization', $tok);
+                ->withAttribute('mercure.publish', $claims['publish']??[])
+                ->withAttribute('mercure.subscribe', $claims['subscribe']??[])
+                ->withAttribute('mercure.payload', $claims['payload']??[])
+                ->withAttribute('authorized', true);
         } else {
             return $request
-                ->withAttribute('authorization', null);
+                ->withAttribute('authorized', false);
 
         }
     }