Add socket server compatible with original software

src/main.cpp

@@ -4,9 +4,11 @@
 
 #include "credentials.h"
 #include "webserver.h"
+#include "socketserver.h"
 #include "util.h"
 
 static ESP8266WiFiMulti wifiMulti;
+static SocketServer socketServer;
 
 void setup() {
     // serial console, for use via USB (also exposed to TXD0/RXD0 GPIOs)
@@ -43,10 +45,12 @@ void setup() {
     // configure HTTP endpoints
     configureWebServer();
 
-    // don't forget to start the webserver!
+    // don't forget to start all the services
     webServer.begin();
+    socketServer.begin();
 }
 
 void loop() {
     webServer.handleClient();
+    socketServer.handleClient();
 }

src/socketserver.h

@@ -0,0 +1,34 @@
+#pragma once
+
+class SocketServer {
+public:
+    static constexpr int Port = 3000;
+
+    void begin() {
+        _server.begin();
+    }
+
+    void handleClient() {
+        auto client = _server.available();
+
+        if (client) {
+            Serial.println("Client connected to socket server: " + client.remoteIP().toString() + ":" + client.remotePort());
+        } else {
+            return;
+        }
+
+        while (client.connected()) {
+            while (client.available() > 0) {
+                auto chr = client.read();
+                Serial.write(chr);
+                Serial1.write(chr);
+            }
+        }
+        client.stop();
+        Serial.println();
+        Serial.println("Client disconnected");
+    }
+
+private:
+    WiFiServer _server{Port};
+};