Bugfix: don't allow to enable FTP if there's no wifi

src/logmessages.h

@@ -174,3 +174,4 @@ static const char staticIPConfigFailed[] PROGMEM = "Statische IP-Konfiguration f
 static const char wakeUpRfidNoIso14443[] PROGMEM = "ESP32 wurde vom Kartenleser aus dem Deepsleep aufgeweckt. Allerdings wurde keine ISO-14443-Karte gefunden. Gehe zurück in den Deepsleep...";
 static const char lowPowerCardSuccess[] PROGMEM = "Kartenerkennung via 'low power' erfolgreich durchgeführt";
 static const char rememberLastVolume[] PROGMEM = "Lautstärke vor dem letzten Shutdown wird wiederhergestellt. Dies überschreibt die Einstellung der initialen Lautstärke aus der GUI.";
+static const char unableToStartFtpServer[] PROGMEM = "Der FTP-Server konnte nicht gestartet werden. Entweder weil er ist bereits gestartet oder kein WLAN verfügbar ist.";

src/logmessages_EN.h

@@ -160,8 +160,7 @@ static const char failedToOpenFileForAppending[] PROGMEM = "Failed to open file
 static const char listingDirectory[] PROGMEM = "Listing directory";
 static const char failedToOpenDirectory[] PROGMEM = "Failed to open directory";
 static const char notADirectory[] PROGMEM = "Not a directory";
-static const char sdMountedMmc1Bit[] PROGMEM = "SD-card in SD_MMC 1 Bit-mode configured...";
-static const char sdMountedSpiMode[] PROGMEM = "SD card mounted in SPI-mode configured...";
+static const char sdMountedMmc1BitMode[] PROGMEM = "SD card mounted in SPI-mode configured...";
 static const char backupRecoveryWebsite[] PROGMEM = "<p>Backup-file is being applied...<br />Back to <a href=\"javascript:history.back()\">last page</a>.</p>";
 static const char restartWebsite[] PROGMEM = "<p>ESPuino is being restarted...<br />Back to <a href=\"javascript:history.back()\">last page</a>.</p>";
 static const char mqttMsgReceived[] PROGMEM = "MQTT-message received";
@@ -174,3 +173,4 @@ static const char staticIPConfigFailed[] PROGMEM = "Static IP-configuration fail
 static const char wakeUpRfidNoIso14443[] PROGMEM = "Wakeup caused by low power card-detection. RF-field changed but no ISO-14443 card on reader was found. So I'll return back to sleep now...";
 static const char lowPowerCardSuccess[] PROGMEM = "Switch to low power card-detection: success";
 static const char rememberLastVolume[] PROGMEM = "Restored volume used before last shutdown. This overwrites the initial volume configured via webgui.";
+static const char unableToStartFtpServer[] PROGMEM = "FTP-server cannot be started. This is because FTP-service is already active of because WiFi is unavailable.";

src/main.cpp

@@ -584,6 +584,13 @@ void doButtonActions(void) {
             if (buttons[0].isPressed && buttons[2].isPressed) {
                 buttons[0].isPressed = false;
                 buttons[2].isPressed = false;
+                if (wifiManager() != WL_CONNECTED) {
+                    #ifdef NEOPIXEL_ENABLE
+                        showLedError = true;
+                        loggerNl(serialDebug, (char *) FPSTR(unableToStartFtpServer), LOGLEVEL_ERROR);
+                    #endif
+                    return;
+                }
                 ftpEnableLastStatus = true;
                 #ifdef NEOPIXEL_ENABLE
                     showLedOk = true;
@@ -2932,7 +2939,7 @@ void doRfidCardModifications(const uint32_t mod) {
                 break;
         #endif
         case ENABLE_FTP_SERVER:
-            if (!ftpEnableLastStatus && !ftpEnableCurrentStatus) {
+            if (wifiManager() == WL_CONNECTED && !ftpEnableLastStatus && !ftpEnableCurrentStatus) {
                 ftpEnableLastStatus = true;
                 #ifdef NEOPIXEL_ENABLE
                     showLedOk = true;
@@ -2940,6 +2947,7 @@ void doRfidCardModifications(const uint32_t mod) {
             } else {
                 #ifdef NEOPIXEL_ENABLE
                     showLedError = true;
+                    loggerNl(serialDebug, (char *) FPSTR(unableToStartFtpServer), LOGLEVEL_ERROR);
                 #endif
             }