feat: Add network credential settings for FTP and HTTP servers, add editable credential changes for hotspot

README.md

@@ -47,6 +47,7 @@ This project is **not affiliated with Xteink**; it's built as a community projec
 - [ ] Sleep wallpaper picker
 - [x] Adjustable sleep timer
 - [x] Set default folder
+- [x] Custom credentials for Hotspot and FTP/HTTP access
 
 See [the user guide](./USER_GUIDE.md) for instructions on operating CrossPoint.
 

src/CrossPointSettings.cpp

@@ -12,7 +12,7 @@ CrossPointSettings CrossPointSettings::instance;
 namespace {
 constexpr uint8_t SETTINGS_FILE_VERSION = 1;
 // Increment this when adding new persisted settings fields
-constexpr uint8_t SETTINGS_COUNT = 22;
+constexpr uint8_t SETTINGS_COUNT = 28;
 constexpr char SETTINGS_FILE[] = "/.crosspoint/settings.bin";
 }  // namespace
 
@@ -49,6 +49,12 @@ bool CrossPointSettings::saveToFile() const {
   serialization::writePod(outputFile, scheduleNetworkMode);
   serialization::writePod(outputFile, scheduleHour);
   serialization::writePod(outputFile, scheduleAutoShutdown);
+  serialization::writeString(outputFile, ftpUsername);
+  serialization::writeString(outputFile, ftpPassword);
+  serialization::writeString(outputFile, httpUsername);
+  serialization::writeString(outputFile, httpPassword);
+  serialization::writeString(outputFile, apSsid);
+  serialization::writeString(outputFile, apPassword);
   outputFile.close();
 
   Serial.printf("[%lu] [CPS] Settings saved to file\n", millis());
@@ -119,6 +125,18 @@ bool CrossPointSettings::loadFromFile() {
     if (++settingsRead >= fileSettingsCount) break;
     serialization::readPod(inputFile, scheduleAutoShutdown);
     if (++settingsRead >= fileSettingsCount) break;
+    serialization::readString(inputFile, ftpUsername);
+    if (++settingsRead >= fileSettingsCount) break;
+    serialization::readString(inputFile, ftpPassword);
+    if (++settingsRead >= fileSettingsCount) break;
+    serialization::readString(inputFile, httpUsername);
+    if (++settingsRead >= fileSettingsCount) break;
+    serialization::readString(inputFile, httpPassword);
+    if (++settingsRead >= fileSettingsCount) break;
+    serialization::readString(inputFile, apSsid);
+    if (++settingsRead >= fileSettingsCount) break;
+    serialization::readString(inputFile, apPassword);
+    if (++settingsRead >= fileSettingsCount) break;
   } while (false);
 
   inputFile.close();

src/CrossPointSettings.h

@@ -88,6 +88,14 @@ class CrossPointSettings {
   // Custom default folder path (used when defaultFolder == FOLDER_CUSTOM)
   std::string customDefaultFolder = "/books";
 
+  // Network credentials
+  std::string ftpUsername = "crosspoint";
+  std::string ftpPassword = "reader";
+  std::string httpUsername = "crosspoint";
+  std::string httpPassword = "reader";
+  std::string apSsid = "CrossPoint-Reader";
+  std::string apPassword = "";  // Empty = open network
+
   ~CrossPointSettings() = default;
 
   // Get singleton instance

src/activities/network/FileTransferActivity.cpp

@@ -18,8 +18,6 @@
 
 namespace {
 // AP Mode configuration
-constexpr const char* AP_SSID = "CrossPoint-Reader";
-constexpr const char* AP_PASSWORD = nullptr;  // Open network for ease of use
 constexpr const char* AP_HOSTNAME = "crosspoint";
 constexpr uint8_t AP_CHANNEL = 1;
 constexpr uint8_t AP_MAX_CONNECTIONS = 4;
@@ -219,11 +217,11 @@ void FileTransferActivity::startAccessPoint() {
 
   // Start soft AP
   bool apStarted;
-  if (AP_PASSWORD && strlen(AP_PASSWORD) >= 8) {
-    apStarted = WiFi.softAP(AP_SSID, AP_PASSWORD, AP_CHANNEL, false, AP_MAX_CONNECTIONS);
+  if (!SETTINGS.apPassword.empty() && SETTINGS.apPassword.length() >= 8) {
+    apStarted = WiFi.softAP(SETTINGS.apSsid.c_str(), SETTINGS.apPassword.c_str(), AP_CHANNEL, false, AP_MAX_CONNECTIONS);
   } else {
-    // Open network (no password)
-    apStarted = WiFi.softAP(AP_SSID, nullptr, AP_CHANNEL, false, AP_MAX_CONNECTIONS);
+    // Open network (no password or password too short)
+    apStarted = WiFi.softAP(SETTINGS.apSsid.c_str(), nullptr, AP_CHANNEL, false, AP_MAX_CONNECTIONS);
   }
 
   if (!apStarted) {
@@ -239,10 +237,10 @@ void FileTransferActivity::startAccessPoint() {
   char ipStr[16];
   snprintf(ipStr, sizeof(ipStr), "%d.%d.%d.%d", apIP[0], apIP[1], apIP[2], apIP[3]);
   connectedIP = ipStr;
-  connectedSSID = AP_SSID;
+  connectedSSID = SETTINGS.apSsid;
 
   Serial.printf("[%lu] [WEBACT] Access Point started!\n", millis());
-  Serial.printf("[%lu] [WEBACT] SSID: %s\n", millis(), AP_SSID);
+  Serial.printf("[%lu] [WEBACT] SSID: %s\n", millis(), SETTINGS.apSsid.c_str());
   Serial.printf("[%lu] [WEBACT] IP: %s\n", millis(), connectedIP.c_str());
 
   // Start mDNS for hostname resolution
@@ -492,6 +490,13 @@ void FileTransferActivity::renderHttpServerRunning() const {
     // Show QR code for URL
     renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 6, "or scan QR code with your phone:");
     drawQRCode(renderer, (480 - 6 * 33) / 2, startY + LINE_SPACING * 7, hostnameUrl);
+
+    // Show HTTP credentials at the bottom
+    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 14, "Browser will ask for credentials:");
+    std::string httpUserStr = "Username: " + SETTINGS.httpUsername;
+    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 15, httpUserStr.c_str());
+    std::string httpPassStr = "Password: " + SETTINGS.httpPassword;
+    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 16, httpPassStr.c_str());
   } else {
     // STA mode display (original behavior)
     const int startY = 65;
@@ -518,6 +523,13 @@ void FileTransferActivity::renderHttpServerRunning() const {
     // Show QR code for URL
     drawQRCode(renderer, (480 - 6 * 33) / 2, startY + LINE_SPACING * 6, webInfo);
     renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 5, "or scan QR code with your phone:");
+
+    // Show HTTP credentials
+    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 12, "Browser will ask for credentials:");
+    std::string httpUserStr = "Username: " + SETTINGS.httpUsername;
+    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 13, httpUserStr.c_str());
+    std::string httpPassStr = "Password: " + SETTINGS.httpPassword;
+    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 14, httpPassStr.c_str());
   }
 
   const auto labels = mappedInput.mapLabels("« Exit", "", "", "");
@@ -542,7 +554,10 @@ void FileTransferActivity::renderFtpServerRunning() const {
     renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 3,
                               "or scan QR code with your phone to connect to WiFi.");
     // Show QR code for WiFi
-    std::string wifiConfig = std::string("WIFI:T:WPA;S:") + connectedSSID + ";P:" + "" + ";;";
+    std::string wifiConfig = std::string("WIFI:T:") + 
+                             (SETTINGS.apPassword.empty() ? "" : "WPA") + 
+                             ";S:" + connectedSSID + 
+                             ";P:" + SETTINGS.apPassword + ";;";
     drawQRCode(renderer, (480 - 6 * 33) / 2, startY + LINE_SPACING * 4, wifiConfig);
 
     startY += 6 * 29 + 3 * LINE_SPACING;
@@ -554,8 +569,10 @@ void FileTransferActivity::renderFtpServerRunning() const {
     renderer.drawCenteredText(UI_10_FONT_ID, startY + LINE_SPACING * 4, ftpInfo.c_str(), true, BOLD);
 
     renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 5, "Connect with FTP client:");
-    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 6, "Username: crosspoint");
-    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 7, "Password: reader");
+    std::string ftpUserStr = "Username: " + SETTINGS.ftpUsername;
+    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 6, ftpUserStr.c_str());
+    std::string ftpPassStr = "Password: " + SETTINGS.ftpPassword;
+    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 7, ftpPassStr.c_str());
   } else {
     // STA mode display
     const int startY = 65;
@@ -576,8 +593,10 @@ void FileTransferActivity::renderFtpServerRunning() const {
     renderer.drawCenteredText(UI_10_FONT_ID, startY + LINE_SPACING * 3, ftpInfo.c_str(), true, BOLD);
 
     renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 4, "Use FTP client to connect:");
-    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 5, "Username: crosspoint");
-    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 6, "Password: reader");
+    std::string ftpUserStr = "Username: " + SETTINGS.ftpUsername;
+    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 5, ftpUserStr.c_str());
+    std::string ftpPassStr = "Password: " + SETTINGS.ftpPassword;
+    renderer.drawCenteredText(SMALL_FONT_ID, startY + LINE_SPACING * 6, ftpPassStr.c_str());
 
     // Show QR code for FTP URL
     drawQRCode(renderer, (480 - 6 * 33) / 2, startY + LINE_SPACING * 8, ftpInfo);

src/activities/settings/CredentialSettingsActivity.cpp

@@ -0,0 +1,198 @@
+#include "CredentialSettingsActivity.h"
+
+#include <GfxRenderer.h>
+
+#include "CrossPointSettings.h"
+#include "MappedInputManager.h"
+#include "activities/util/KeyboardEntryActivity.h"
+#include "fontIds.h"
+
+namespace {
+constexpr int FIELD_COUNT = 6;
+const char* FIELD_NAMES[FIELD_COUNT] = {
+    "FTP Username",
+    "FTP Password",
+    "HTTP Username",
+    "HTTP Password",
+    "Hotspot SSID",
+    "Hotspot Password"
+};
+}  // namespace
+
+void CredentialSettingsActivity::taskTrampoline(void* param) {
+  auto* self = static_cast<CredentialSettingsActivity*>(param);
+  self->displayTaskLoop();
+}
+
+void CredentialSettingsActivity::onEnter() {
+  Activity::onEnter();
+
+  renderingMutex = xSemaphoreCreateMutex();
+  selectedIndex = 0;
+  updateRequired = true;
+
+  xTaskCreate(&CredentialSettingsActivity::taskTrampoline, "CredentialSettingsTask",
+              2048,               // Stack size
+              this,               // Parameters
+              1,                  // Priority
+              &displayTaskHandle  // Task handle
+  );
+}
+
+void CredentialSettingsActivity::onExit() {
+  ActivityWithSubactivity::onExit();
+
+  xSemaphoreTake(renderingMutex, portMAX_DELAY);
+  if (displayTaskHandle) {
+    vTaskDelete(displayTaskHandle);
+    displayTaskHandle = nullptr;
+  }
+  vSemaphoreDelete(renderingMutex);
+  renderingMutex = nullptr;
+}
+
+void CredentialSettingsActivity::loop() {
+  if (subActivity) {
+    subActivity->loop();
+    return;
+  }
+
+  if (mappedInput.wasPressed(MappedInputManager::Button::Back)) {
+    SETTINGS.saveToFile();
+    onGoBack();
+    return;
+  }
+
+  if (mappedInput.wasPressed(MappedInputManager::Button::Confirm)) {
+    selectCurrentField();
+    return;
+  }
+
+  // Handle navigation
+  if (mappedInput.wasPressed(MappedInputManager::Button::Up) ||
+      mappedInput.wasPressed(MappedInputManager::Button::Left)) {
+    selectedIndex = (selectedIndex > 0) ? (selectedIndex - 1) : (FIELD_COUNT - 1);
+    updateRequired = true;
+  } else if (mappedInput.wasPressed(MappedInputManager::Button::Down) ||
+             mappedInput.wasPressed(MappedInputManager::Button::Right)) {
+    selectedIndex = (selectedIndex + 1) % FIELD_COUNT;
+    updateRequired = true;
+  }
+}
+
+void CredentialSettingsActivity::selectCurrentField() {
+  std::string* targetField = nullptr;
+  const char* promptText = "";
+  
+  switch (selectedIndex) {
+    case 0:  // FTP Username
+      targetField = &SETTINGS.ftpUsername;
+      promptText = "Enter FTP username:";
+      break;
+    case 1:  // FTP Password
+      targetField = &SETTINGS.ftpPassword;
+      promptText = "Enter FTP password:";
+      break;
+    case 2:  // HTTP Username
+      targetField = &SETTINGS.httpUsername;
+      promptText = "Enter HTTP username:";
+      break;
+    case 3:  // HTTP Password
+      targetField = &SETTINGS.httpPassword;
+      promptText = "Enter HTTP password:";
+      break;
+    case 4:  // Hotspot SSID
+      targetField = &SETTINGS.apSsid;
+      promptText = "Enter hotspot SSID:";
+      break;
+    case 5:  // Hotspot Password
+      targetField = &SETTINGS.apPassword;
+      promptText = "Enter hotspot password (leave empty for open network):";
+      break;
+  }
+
+  if (targetField) {
+    xSemaphoreTake(renderingMutex, portMAX_DELAY);
+    exitActivity();
+    bool isPassword = (selectedIndex == 1 || selectedIndex == 3 || selectedIndex == 5); // Password fields
+    enterNewActivity(new KeyboardEntryActivity(
+        renderer, mappedInput, 
+        promptText,        // title
+        *targetField,      // initialText
+        10,                // startY
+        0,                 // maxLength (0 = unlimited)
+        isPassword,        // isPassword
+        [this, targetField](const std::string& newValue) {
+          *targetField = newValue;
+          SETTINGS.saveToFile();
+          exitActivity();
+          updateRequired = true;
+        },
+        [this] {
+          exitActivity();
+          updateRequired = true;
+        }));
+    xSemaphoreGive(renderingMutex);
+  }
+}
+
+void CredentialSettingsActivity::displayTaskLoop() {
+  while (true) {
+    if (updateRequired && !subActivity) {
+      updateRequired = false;
+      xSemaphoreTake(renderingMutex, portMAX_DELAY);
+      render();
+      xSemaphoreGive(renderingMutex);
+    }
+    vTaskDelay(10 / portTICK_PERIOD_MS);
+  }
+}
+
+void CredentialSettingsActivity::render() const {
+  renderer.clearScreen();
+
+  const auto pageWidth = renderer.getScreenWidth();
+  const auto pageHeight = renderer.getScreenHeight();
+
+  // Draw header
+  renderer.drawCenteredText(UI_12_FONT_ID, 15, "Network Credentials", true, BOLD);
+  renderer.drawCenteredText(SMALL_FONT_ID, 40, "Configure server and hotspot credentials");
+
+  // Draw selection
+  renderer.fillRect(0, 70 + selectedIndex * 35 - 2, pageWidth - 1, 35);
+
+  // Draw fields
+  for (int i = 0; i < FIELD_COUNT; i++) {
+    const int fieldY = 70 + i * 35;
+    const bool isSelected = (i == selectedIndex);
+
+    // Draw field name
+    renderer.drawText(UI_10_FONT_ID, 20, fieldY, FIELD_NAMES[i], !isSelected);
+
+    // Draw current value (masked for passwords)
+    std::string displayValue;
+    switch (i) {
+      case 0:  // FTP Username
+        displayValue = SETTINGS.ftpUsername;
+        break;
+      case 1:  // FTP Password
+        displayValue = SETTINGS.ftpPassword.empty() ? "" : std::string(SETTINGS.ftpPassword.length(), '*');
+        break;
+      case 2:  // Hotspot SSID
+        displayValue = SETTINGS.apSsid;
+        break;
+      case 3:  // Hotspot Password
+        displayValue = SETTINGS.apPassword.empty() ? "(open)" : std::string(SETTINGS.apPassword.length(), '*');
+        break;
+    }
+
+    const auto width = renderer.getTextWidth(UI_10_FONT_ID, displayValue.c_str());
+    renderer.drawText(UI_10_FONT_ID, pageWidth - 20 - width, fieldY, displayValue.c_str(), !isSelected);
+  }
+
+  // Draw help text
+  const auto labels = mappedInput.mapLabels("« Save", "Edit", "", "");
+  renderer.drawButtonHints(UI_10_FONT_ID, labels.btn1, labels.btn2, labels.btn3, labels.btn4);
+
+  renderer.displayBuffer();
+}

src/activities/settings/CredentialSettingsActivity.h

@@ -0,0 +1,35 @@
+#pragma once
+#include <freertos/FreeRTOS.h>
+#include <freertos/semphr.h>
+#include <freertos/task.h>
+
+#include <functional>
+
+#include "activities/ActivityWithSubactivity.h"
+
+/**
+ * CredentialSettingsActivity allows users to configure credentials for:
+ * - FTP server (username and password)
+ * - HTTP server (username and password)
+ * - WiFi Hotspot (SSID and password)
+ */
+class CredentialSettingsActivity final : public ActivityWithSubactivity {
+  TaskHandle_t displayTaskHandle = nullptr;
+  SemaphoreHandle_t renderingMutex = nullptr;
+  bool updateRequired = false;
+  int selectedIndex = 0;  // Currently selected credential field
+  const std::function<void()> onGoBack;
+
+  static void taskTrampoline(void* param);
+  [[noreturn]] void displayTaskLoop();
+  void render() const;
+  void selectCurrentField();
+
+ public:
+  explicit CredentialSettingsActivity(GfxRenderer& renderer, MappedInputManager& mappedInput,
+                                      const std::function<void()>& onGoBack)
+      : ActivityWithSubactivity("CredentialSettings", renderer, mappedInput), onGoBack(onGoBack) {}
+  void onEnter() override;
+  void onExit() override;
+  void loop() override;
+};

src/activities/settings/SettingsActivity.cpp

@@ -3,6 +3,7 @@
 #include <GfxRenderer.h>
 
 #include "CrossPointSettings.h"
+#include "CredentialSettingsActivity.h"
 #include "FolderPickerActivity.h"
 #include "MappedInputManager.h"
 #include "OtaUpdateActivity.h"
@@ -11,7 +12,7 @@
 
 // Define the static settings list
 namespace {
-constexpr int settingsCount = 18;
+constexpr int settingsCount = 19;
 const SettingInfo settingsList[settingsCount] = {
     // Should match with SLEEP_SCREEN_MODE
     {"Sleep Screen", SettingType::ENUM, &CrossPointSettings::sleepScreen, {"Dark", "Light", "Custom", "Cover"}},
@@ -51,6 +52,7 @@ const SettingInfo settingsList[settingsCount] = {
      {"Root", "Custom", "Last Used"}},
     {"Choose Custom Folder", SettingType::ACTION, nullptr, {}},
     {"Bluetooth", SettingType::TOGGLE, &CrossPointSettings::bluetoothEnabled, {}},
+    {"Network Credentials", SettingType::ACTION, nullptr, {}},
     {"File Transfer Schedule", SettingType::ACTION, nullptr, {}},
     {"Check for updates", SettingType::ACTION, nullptr, {}},
 };
@@ -169,6 +171,14 @@ void SettingsActivity::toggleCurrentSetting() {
           },
           "/"));  // Start from root directory
       xSemaphoreGive(renderingMutex);
+    } else if (std::string(setting.name) == "Network Credentials") {
+      xSemaphoreTake(renderingMutex, portMAX_DELAY);
+      exitActivity();
+      enterNewActivity(new CredentialSettingsActivity(renderer, mappedInput, [this] {
+        exitActivity();
+        updateRequired = true;
+      }));
+      xSemaphoreGive(renderingMutex);
     } else if (std::string(setting.name) == "File Transfer Schedule") {
       xSemaphoreTake(renderingMutex, portMAX_DELAY);
       exitActivity();

src/network/CrossPointFtpServer.cpp

@@ -2,11 +2,7 @@
 
 #include <WiFi.h>
 
-namespace {
-// FTP server credentials
-constexpr const char* FTP_USERNAME = "crosspoint";
-constexpr const char* FTP_PASSWORD = "reader";
-}  // namespace
+#include "CrossPointSettings.h"
 
 CrossPointFtpServer::CrossPointFtpServer() {}
 
@@ -52,15 +48,15 @@ void CrossPointFtpServer::begin() {
   }
 
   // Initialize FTP server with credentials
-  ftpServer->begin(FTP_USERNAME, FTP_PASSWORD);
+  ftpServer->begin(SETTINGS.ftpUsername.c_str(), SETTINGS.ftpPassword.c_str());
   running = true;
 
   Serial.printf("[%lu] [FTP] FTP server started on port 21\n", millis());
   // Show the correct IP based on network mode
   const String ipAddr = apMode ? WiFi.softAPIP().toString() : WiFi.localIP().toString();
   Serial.printf("[%lu] [FTP] Access at ftp://%s/\n", millis(), ipAddr.c_str());
-  Serial.printf("[%lu] [FTP] Username: %s\n", millis(), FTP_USERNAME);
-  Serial.printf("[%lu] [FTP] Password: %s\n", millis(), FTP_PASSWORD);
+  Serial.printf("[%lu] [FTP] Username: %s\n", millis(), SETTINGS.ftpUsername.c_str());
+  Serial.printf("[%lu] [FTP] Password: %s\n", millis(), SETTINGS.ftpPassword.c_str());
   Serial.printf("[%lu] [FTP] [MEM] Free heap after server.begin(): %d bytes\n", millis(), ESP.getFreeHeap());
 }
 

src/network/CrossPointWebServer.cpp

@@ -7,6 +7,7 @@
 
 #include <algorithm>
 
+#include "CrossPointSettings.h"
 #include "html/FilesPageHtml.generated.h"
 #include "html/HomePageHtml.generated.h"
 
@@ -150,7 +151,17 @@ void CrossPointWebServer::handleClient() const {
   server->handleClient();
 }
 
+bool CrossPointWebServer::authenticate() const {
+  if (!server->authenticate(SETTINGS.httpUsername.c_str(), SETTINGS.httpPassword.c_str())) {
+    server->requestAuthentication();
+    Serial.printf("[%lu] [WEB] Authentication failed\n", millis());
+    return false;
+  }
+  return true;
+}
+
 void CrossPointWebServer::handleRoot() const {
+  if (!authenticate()) return;
   server->send(200, "text/html", HomePageHtml);
   Serial.printf("[%lu] [WEB] Served root page\n", millis());
 }
@@ -162,6 +173,7 @@ void CrossPointWebServer::handleNotFound() const {
 }
 
 void CrossPointWebServer::handleStatus() const {
+  if (!authenticate()) return;
   // Get correct IP based on AP vs STA mode
   const String ipAddr = apMode ? WiFi.softAPIP().toString() : WiFi.localIP().toString();
 
@@ -241,9 +253,13 @@ bool CrossPointWebServer::isEpubFile(const String& filename) const {
   return lower.endsWith(".epub");
 }
 
-void CrossPointWebServer::handleFileList() const { server->send(200, "text/html", FilesPageHtml); }
+void CrossPointWebServer::handleFileList() const { 
+  if (!authenticate()) return;
+  server->send(200, "text/html", FilesPageHtml); 
+}
 
 void CrossPointWebServer::handleFileListData() const {
+  if (!authenticate()) return;
   // Get current path from query string (default to root)
   String currentPath = "/";
   if (server->hasArg("path")) {
@@ -302,6 +318,9 @@ static bool uploadSuccess = false;
 static String uploadError = "";
 
 void CrossPointWebServer::handleUpload() const {
+  // Check authentication
+  if (!authenticate()) return;
+
   static unsigned long lastWriteTime = 0;
   static unsigned long uploadStartTime = 0;
   static size_t lastLoggedSize = 0;
@@ -416,6 +435,7 @@ void CrossPointWebServer::handleUpload() const {
 }
 
 void CrossPointWebServer::handleUploadPost() const {
+  if (!authenticate()) return;
   if (uploadSuccess) {
     server->send(200, "text/plain", "File uploaded successfully: " + uploadFileName);
   } else {
@@ -425,6 +445,7 @@ void CrossPointWebServer::handleUploadPost() const {
 }
 
 void CrossPointWebServer::handleCreateFolder() const {
+  if (!authenticate()) return;
   // Get folder name from form data
   if (!server->hasArg("name")) {
     server->send(400, "text/plain", "Missing folder name");
@@ -475,6 +496,7 @@ void CrossPointWebServer::handleCreateFolder() const {
 }
 
 void CrossPointWebServer::handleDelete() const {
+  if (!authenticate()) return;
   // Get path from form data
   if (!server->hasArg("path")) {
     server->send(400, "text/plain", "Missing path");

src/network/CrossPointWebServer.h

@@ -38,6 +38,9 @@ class CrossPointWebServer {
   bool apMode = false;  // true when running in AP mode, false for STA mode
   uint16_t port = 80;
 
+  // Authentication helper
+  bool authenticate() const;
+
   // File scanning
   void scanFiles(const char* path, const std::function<void(FileInfo)>& callback) const;
   String formatFileSize(size_t bytes) const;