From c8fb6ac87211e4f4c46a19dccb9442145db6c335 Mon Sep 17 00:00:00 2001
From: Berran Remzi <11856339+BerranRemzi@users.noreply.github.com>
Date: Wed, 14 Jan 2026 00:07:05 +0200
Subject: [PATCH 1/2] Fix logical error in path validation for SD file handling

---
 esp3d/src/modules/http/handlers/handle-SD-files.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/esp3d/src/modules/http/handlers/handle-SD-files.cpp b/esp3d/src/modules/http/handlers/handle-SD-files.cpp
index f3409b1f..7c09910e 100644
--- a/esp3d/src/modules/http/handlers/handle-SD-files.cpp
+++ b/esp3d/src/modules/http/handlers/handle-SD-files.cpp
@@ -100,7 +100,7 @@ void HTTP_Server::handleSDFileList() {
           status = shortname + " deleted";
           // what happen if no "/." and no other subfiles for SPIFFS like?
           String ptmp = path;
-          if ((path != "/") && (path[path.length() - 1] = '/')) {
+          if ((path != "/") && (path[path.length() - 1] == '/')) {
             ptmp = path.substring(0, path.length() - 1);
           }
           if (!ESP_SD::exists(ptmp.c_str())) {
@@ -160,7 +160,7 @@ void HTTP_Server::handleSDFileList() {
   buffer2send.reserve(1200);
   buffer2send = "{\"files\":[";
   String ptmp = path;
-  if ((path != "/") && (path[path.length() - 1] = '/')) {
+  if ((path != "/") && (path[path.length() - 1] == '/')) {
     ptmp = path.substring(0, path.length() - 1);
   }
   _webserver->setContentLength(CONTENT_LENGTH_UNKNOWN);

From 5180706615b2d4802a4f8898e4d705c58f25cff3 Mon Sep 17 00:00:00 2001
From: Berran Remzi <11856339+BerranRemzi@users.noreply.github.com>
Date: Wed, 14 Jan 2026 18:31:44 +0200
Subject: [PATCH 2/2] Fix logical error in path validation for SPIFFS file
 handling

---
 esp3d/src/modules/http/handlers/handle-files.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/esp3d/src/modules/http/handlers/handle-files.cpp b/esp3d/src/modules/http/handlers/handle-files.cpp
index 9505a715..234eb00c 100644
--- a/esp3d/src/modules/http/handlers/handle-files.cpp
+++ b/esp3d/src/modules/http/handlers/handle-files.cpp
@@ -88,7 +88,7 @@ void HTTP_Server::handleFSFileList() {
           status = shortname + " deleted";
           // what happen if no "/." and no other subfiles for SPIFFS like?
           String ptmp = path;
-          if ((path != "/") && (path[path.length() - 1] = '/')) {
+          if ((path != "/") && (path[path.length() - 1] == '/')) {
             ptmp = path.substring(0, path.length() - 1);
           }
           if (!ESP_FileSystem::exists(ptmp.c_str())) {
@@ -144,7 +144,7 @@ void HTTP_Server::handleFSFileList() {
   buffer2send.reserve(1200);
   buffer2send = "{\"files\":[";
   String ptmp = path;
-  if ((path != "/") && (path[path.length() - 1] = '/')) {
+  if ((path != "/") && (path[path.length() - 1] == '/')) {
     ptmp = path.substring(0, path.length() - 1);
   }
   _webserver->setContentLength(CONTENT_LENGTH_UNKNOWN);