From 4e38cb7ba9acae1db9f50330c10963e5044eeb41 Mon Sep 17 00:00:00 2001
From: Theo Arends <11044339+arendst@users.noreply.github.com>
Date: Sun, 17 May 2020 17:55:36 +0200
Subject: [PATCH] Allow empty DeviceName

---
 tasmota/xdrv_01_webserver.ino | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tasmota/xdrv_01_webserver.ino b/tasmota/xdrv_01_webserver.ino
index 3f7ad8ec0..a1e4a247b 100644
--- a/tasmota/xdrv_01_webserver.ino
+++ b/tasmota/xdrv_01_webserver.ino
@@ -456,7 +456,7 @@ const char HTTP_FORM_OTHER[] PROGMEM =
   "<br>"
   "<label><input id='b1' type='checkbox'%s><b>" D_MQTT_ENABLE "</b></label><br>"
   "<br>"
-  "<label><b>" D_DEVICE_NAME "</b> (%s)</label><br><input id='dn' placeholder='%s' value='%s'><br>"
+  "<label><b>" D_DEVICE_NAME "</b> (%s)</label><br><input id='dn' placeholder='' value='%s'><br>"
   "<br>";
 
 const char HTTP_FORM_END[] PROGMEM =
@@ -1996,7 +1996,7 @@ void HandleOtherConfiguration(void)
   strlcpy(stemp, mqtt_data, sizeof(stemp));  // Get JSON template
   WSContentSend_P(HTTP_FORM_OTHER, stemp, (USER_MODULE == Settings.module) ? " checked disabled" : "",
     (Settings.flag.mqtt_enabled) ? " checked" : "",   // SetOption3 - Enable MQTT
-    SettingsText(SET_FRIENDLYNAME1), SettingsText(SET_DEVICENAME), SettingsText(SET_DEVICENAME));
+    SettingsText(SET_FRIENDLYNAME1), SettingsText(SET_DEVICENAME));
 
   uint32_t maxfn = (devices_present > MAX_FRIENDLYNAMES) ? MAX_FRIENDLYNAMES : (!devices_present) ? 1 : devices_present;
 #ifdef USE_SONOFF_IFAN
@@ -2047,8 +2047,7 @@ void OtherSaveSettings(void)
   char message[LOGSZ];
 
   WebGetArg("dn", tmp, sizeof(tmp));
-  SettingsUpdateText(SET_DEVICENAME, (!strlen(tmp)) ? SettingsText(SET_FRIENDLYNAME1) : tmp);
-
+  SettingsUpdateText(SET_DEVICENAME, (!strlen(tmp)) ? "" : (!strcmp(tmp,"1")) ? SettingsText(SET_FRIENDLYNAME1) : tmp);
   WebGetArg("wp", tmp, sizeof(tmp));
   SettingsUpdateText(SET_WEBPWD, (!strlen(tmp)) ? "" : (strchr(tmp,'*')) ? SettingsText(SET_WEBPWD) : tmp);
   Settings.flag.mqtt_enabled = Webserver->hasArg("b1");  // SetOption3 - Enable MQTT