From 5ab08705a4738aa0d48e2148d34a9437f8403c6f Mon Sep 17 00:00:00 2001
From: dabico <dabico@usi.ch>
Date: Wed, 3 Apr 2024 18:01:56 +0200
Subject: [PATCH] Expose exception message or stack trace in global error
 handler

---
 index.js        |  7 ++++++-
 views/error.ejs | 11 ++++++++---
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/index.js b/index.js
index 748008a..56c3e73 100644
--- a/index.js
+++ b/index.js
@@ -102,7 +102,12 @@ app.use(actuator({ basePath: "/actuator" }));
 app.use("/", await router());
 
 app.use(async (err, _req, res, _next) => {
-    res.status(HTTPStatus.INTERNAL_SERVER_ERROR).render("error", { message: err.message });
+    const message = nodeEnv === "production"
+        ? err.message
+        : err.stack.split("\n")
+            .map(line => line.trimStart())
+            .join("\n");
+    res.status(HTTPStatus.INTERNAL_SERVER_ERROR).render("error", { message });
 });
 
 const server = app.listen(port, () => {
diff --git a/views/error.ejs b/views/error.ejs
index 25d2992..965c26b 100644
--- a/views/error.ejs
+++ b/views/error.ejs
@@ -13,13 +13,18 @@
                 <%= locals.title || "An Unexpected Error Has Occurred!" %>
             </h1>
             <% if (locals.message) { %>
-                <p class="text-center font-monospace">
-                    <%= locals.message %>
-                </p>
+                <div class="container">
+                    <div class="row">
+                        <div class="col">
+                            <pre class="border rounded"><code class="language-plaintext"><%= locals.message %></code></pre>
+                        </div>
+                    </div>
+                </div>
             <% } %>
             <%- include('./partials/home-button'); %>
         </main>
         <%- include('./partials/footer'); %>
         <%- include('./partials/scripts/general'); %>
+        <%- include('./partials/scripts/hljs'); %>
     </body>
 </html>
\ No newline at end of file