Canvas: Require authentication

Change-Id: Ia1328cbcfd1b977bae8f0707a8fef4695bccad64
diff --git a/apps/canvas/back/src/index.ts b/apps/canvas/back/src/index.ts
index d7e47ed..dfcbf0e 100644
--- a/apps/canvas/back/src/index.ts
+++ b/apps/canvas/back/src/index.ts
@@ -1140,8 +1140,8 @@
 
 const auth = (req: express.Request, resp: express.Response, next: express.NextFunction) => {
 	// Hardcoded user for development
-	resp.locals.userId = "1";
-	resp.locals.username = "gio";
+	resp.locals.userId = req.headers["x-forwarded-userid"];
+	resp.locals.username = req.headers["x-forwarded-user"];
 	next();
 };