From a0d36cf87a91171b70c04f0e2f86ea12a0281914 Mon Sep 17 00:00:00 2001
From: andres-portainer <91705312+andres-portainer@users.noreply.github.com>
Date: Mon, 31 Mar 2025 18:58:20 -0300
Subject: [PATCH] fix(server): add panic logging middleware BE-11750 (#599)

---
 api/http/middlewares/panic_logger.go | 25 +++++++++++++++++++++++++
 api/http/server.go                   |  2 +-
 2 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 api/http/middlewares/panic_logger.go

diff --git a/api/http/middlewares/panic_logger.go b/api/http/middlewares/panic_logger.go
new file mode 100644
index 000000000..6f3b2076f
--- /dev/null
+++ b/api/http/middlewares/panic_logger.go
@@ -0,0 +1,25 @@
+package middlewares
+
+import (
+	"net/http"
+	"runtime/debug"
+
+	"github.com/rs/zerolog/log"
+)
+
+func WithPanicLogger(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+		defer func() {
+			if err := recover(); err != nil {
+				log.Error().
+					Any("panic", err).
+					Str("method", req.Method).
+					Str("url", req.URL.String()).
+					Str("stack", string(debug.Stack())).
+					Msg("Panic in request handler")
+			}
+		}()
+
+		next.ServeHTTP(w, req)
+	})
+}
diff --git a/api/http/server.go b/api/http/server.go
index 3dcc84d2d..12925d479 100644
--- a/api/http/server.go
+++ b/api/http/server.go
@@ -335,7 +335,7 @@ func (server *Server) Start() error {
 
 	handler := adminMonitor.WithRedirect(offlineGate.WaitingMiddleware(time.Minute, server.Handler))
 
-	handler = middlewares.WithSlowRequestsLogger(handler)
+	handler = middlewares.WithPanicLogger(middlewares.WithSlowRequestsLogger(handler))
 
 	handler, err := csrf.WithProtect(handler)
 	if err != nil {