Allow users to subscribe to community chat topics

Dockers/socket-broker/test/socket-broker.test.js

@@ -203,6 +203,37 @@ test('socket broker', async t => {
             socket.close();
         });
 
+        await t.test('a user can subscribe to their own community topic only', async () => {
+            const userId = randomUuid();
+            const otherUserId = randomUuid();
+            const socket = connect({ token: connectToken(userId) });
+
+            await once(socket, 'connect');
+
+            socket.emit('subscribe', `community/user/${userId}`);
+            const subscribed = await once(socket, 'subscribed');
+            assert.equal(subscribed.topic, `community/user/${userId}`);
+
+            socket.emit('subscribe', `community/user/${otherUserId}`);
+            const error = await once(socket, 'error');
+            assert.equal(error.code, 'FORBIDDEN_TOPIC');
+
+            socket.close();
+        });
+
+        await t.test('invalid community topics are rejected', async () => {
+            const userId = randomUuid();
+            const socket = connect({ token: connectToken(userId) });
+
+            await once(socket, 'connect');
+
+            socket.emit('subscribe', 'community/user/not-a-uuid');
+            const error = await once(socket, 'error');
+            assert.equal(error.code, 'INVALID_TOPIC');
+
+            socket.close();
+        });
+
         await t.test('event stats require a matching topic token', async () => {
             const userId = randomUuid();
             const eventTopic = 'event/test-event/ticket_statistics';