allow re-configuration (#9)

include/config.h

@@ -18,12 +18,12 @@ const char HTTP_CONFIG[] PROGMEM = R"rawliteral(
     <div class="content">
       <div class="card-grid">
         <div class="card">
-          <form action="/" method="POST">
+          <form action="/config" method="POST">
             <p>
               <label for="ssid">SSID</label>
-              <input type="text" id ="ssid" name="ssid"><br>
+              <input type="text" id ="ssid" name="ssid" value=%HTML_CONFIG_SSID%><br>
               <label for="pass">Password</label>
-              <input type="text" id ="pass" name="pass"><br>
+              <input type="text" id ="pass" name="pass" value=************><br>
               <label for="server">MQTT Server</label>
               <input type="text" id ="server" name="server" value="io.adafruit.com"><br>
               <label for="user">MQTT Username</label>

platformio.ini

@@ -13,7 +13,7 @@
 default_envs = esp32
 
 build_flags =
-  '-D FIRMWARE_VERSION="2.0.1"'
+  '-D FIRMWARE_VERSION="2.0.2"'
   -D VERBOSE
   ; -DCORE_DEBUG_LEVEL=3
 

src/main.cpp

@@ -291,6 +291,8 @@ String processor(const String &var)
       ret = "<strong> Not Connected</ strong>";
     return ret;
   }
+  if (var == "HTML_CONFIG_SSID")
+    return WiFi.SSID();
   if (var == "UPTIME") {
     String ret = String(millis() / 1000 / 60);
     ret += " min ";
@@ -360,9 +362,9 @@ String processor(const String &var)
   return String();
 }
 
-void captiveServer()
+void configServer()
 {
-  server.on("/", HTTP_POST, [](AsyncWebServerRequest *request) {
+  server.on("/config", HTTP_POST, [](AsyncWebServerRequest *request) {
     int params = request->params();
     StaticJsonDocument<192> doc;
     char output[192] = {'\0'};
@@ -974,6 +976,7 @@ void setup()
 
   WiFi.mode(WIFI_STA);
   WiFi.onEvent(WiFiEvent);
+  WiFi.setHostname("kiln");
   WiFi.begin();
 
   // Initialize SPIFFS
@@ -992,7 +995,7 @@ void setup()
       WiFi.waitForConnectResult() == WL_NO_SSID_AVAIL) { //~ 100 * 100ms
     DBG("WiFi Failed!: %u\n", WiFi.status());
 
-    captiveServer();
+    configServer();
 
     WiFi.softAP("myKiln");
 
@@ -1064,6 +1067,8 @@ void setup()
       request->send_P(200, "text/html", HTTP_CONFIG, processor);
     });
 
+    configServer();
+
     server.on("/info", HTTP_GET, [](AsyncWebServerRequest *request) {
       request->send_P(200, "text/html", HTTP_INFO, processor);
     });