Add command ``WebGetConfig <url>``

Add command ``WebGetConfig <url>`` if ``#define USE_WEBGETCONFIG`` is enabled to restore/init configuration from external webserver (#13034)

CHANGELOG.md

@@ -4,6 +4,9 @@ All notable changes to this project will be documented in this file.
 ## [Unreleased] - Development
 
 ## [9.5.0.8]
+### Added
+- Command ``WebGetConfig <url>`` if ``#define USE_WEBGETCONFIG`` is enabled to restore/init configuration from external webserver (#13034)
+
 ### Fixed
 - ESP32 crash when PSRAM is absent and ``BOARD_HAS_PSRAM`` set (#13037)
 - MQTT TLS related connection timing errors (#13033)

RELEASENOTES.md

@@ -105,6 +105,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl http://ota.tasmo
 - Command ``SetOption127 1`` to force Wi-Fi in no-sleep mode even if ``Sleep 0`` is not enabled
 - Command ``SetOption128 0|1`` web referer check disabling HTTP API commands if set to 0. Default set to 1 for backward compatibility [#12828](https://github.com/arendst/Tasmota/issues/12828)
 - Command ``SetSensor1..127 0|1`` to globally disable individual sensor driver
+- Command ``WebGetConfig <url>`` if ``#define USE_WEBGETCONFIG`` is enabled to restore/init configuration from external webserver [#13034](https://github.com/arendst/Tasmota/issues/13034)
 - Neopool commands ``NPPHRes``, ``NPCLRes`` and ``NPIonRes`` [#12813](https://github.com/arendst/Tasmota/issues/12813)
 - Support for second DNS server
 - Support for (Yeelight) Mi Desk Pro using binary tasmota32solo1.bin

tasmota/my_user_config.h

@@ -461,6 +461,7 @@
 //  #define USE_JAVASCRIPT_ES6                     // Enable ECMAScript6 syntax using less JavaScript code bytes (fails on IE11)
   #define USE_ENHANCED_GUI_WIFI_SCAN             // Enable Wi-Fi scan output with BSSID (+0k5 code)
 //  #define USE_WEBSEND_RESPONSE                   // Enable command WebSend response message (+1k code)
+//  #define USE_WEBGETCONFIG                       // Enable restoring config from external webserver (+0k6)
   #define USE_EMULATION_HUE                      // Enable Hue Bridge emulation for Alexa (+14k code, +2k mem common)
   #define USE_EMULATION_WEMO                     // Enable Belkin WeMo emulation for Alexa (+6k code, +2k mem common)
   // #define USE_CCLOADER                           // Enable CCLoader FW upgrade tool (for CC25xx devices)

tasmota/xdrv_01_webserver.ino

@@ -3124,7 +3124,7 @@ int WebGetConfig(char *buffer)
   RemoveSpace(buffer);                        // host = |[192.168.178.86:80,admin:joker|
   String url = ResolveToken(buffer);
 
-  DEBUG_CORE_LOG(PSTR("WEB: Config Uri |%s|"), url.c_str());
+  DEBUG_CORE_LOG(PSTR("WEB: Config Uri '%s'"), url.c_str());
 
   WiFiClient http_client;
   HTTPClient http;
@@ -3137,7 +3137,7 @@ int WebGetConfig(char *buffer)
         int len = http.getSize();
         if ((len <= sizeof(TSettings)) && SettingsBufferAlloc()) {
           uint8_t *buff = settings_buffer;
-          if (len==-1) len = sizeof(TSettings);
+          if (len == -1) { len = sizeof(TSettings); }
           while (http.connected() && (len > 0)) {
             size_t size = stream->available();
             if (size) {
@@ -3177,7 +3177,6 @@ int WebGetConfig(char *buffer)
 }
 #endif // USE_WEBGETCONFIG
 
-
 bool JsonWebColor(const char* dataBuf)
 {
   // Default (Dark theme)
@@ -3337,6 +3336,8 @@ void CmndWebSend(void)
 #ifdef USE_WEBGETCONFIG
 void CmndWebGetConfig(void)
 {
+  // WebGetConfig http://myserver:8000/tasmota/conf/%id%.dmp where %id% is expanded to device mac address
+  // WebGetConfig http://myserver:8000/tasmota/conf/Config_demo_9.5.0.8.dmp
   if (XdrvMailbox.data_len > 0) {
     uint32_t result = WebGetConfig(XdrvMailbox.data);
     char stemp1[20];