add IPAddress remoteIP(uint8_t num)

update example

examples/WebSocketsServer/WebSocketsServer.ino

@@ -20,13 +20,16 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
 
     switch(type) {
         case WStype_DISCONNECTED:
-            Serial1.printf("[%d] Disconnected!\n", num);
+            Serial1.printf("[%u] Disconnected!\n", num);
             break;
         case WStype_CONNECTED:
-            Serial1.printf("[%d] Connected.\n", num);
+            {
+                IPAddress ip = webSocket.remoteIP(num);
+                Serial1.printf("[%u] Connected from %d.%d.%d.%d url: %s\n", num, ip[0], ip[1], ip[2], ip[3], payload);
+            }
             break;
         case WStype_TEXT:
-            Serial1.printf("[%d] get Text: %s\n", num, payload);
+            Serial1.printf("[%u] get Text: %s\n", num, payload);
 
             // echo data back to browser
             webSocket.sendTXT(num, payload, lenght);
@@ -35,7 +38,7 @@ void webSocketEvent(uint8_t num, WStype_t type, uint8_t * payload, size_t lenght
             webSocket.broadcastTXT(payload, lenght);
             break;
         case WStype_BIN:
-            Serial1.printf("[%d] get binary.\n", num);
+            Serial1.printf("[%u] get binary lenght: %u\n", num, lenght);
             hexdump(payload, lenght);
 
             // echo data back to browser

src/WebSocketsServer.cpp

@@ -200,7 +200,7 @@ void WebSocketsServer::disconnect(void) {
 
 /**
  * disconnect one client
- * @param num
+ * @param num uint8_t client id
  */
 void WebSocketsServer::disconnect(uint8_t num) {
     if(num >= WEBSOCKETS_SERVER_CLIENT_MAX) {
@@ -212,6 +212,22 @@ void WebSocketsServer::disconnect(uint8_t num) {
     }
 }
 
+/**
+ * get an IP for a client
+ * @param num uint8_t client id
+ * @return IPAddress
+ */
+IPAddress WebSocketsServer::remoteIP(uint8_t num) {
+    if(num < WEBSOCKETS_SERVER_CLIENT_MAX) {
+        WSclient_t * client = &_clients[num];
+        if(clientIsConnected(client)) {
+            return client->tcp.remoteIP();
+        }
+    }
+
+    return IPAddress();
+}
+
 //#################################################################################
 //#################################################################################
 //#################################################################################

src/WebSocketsServer.h

@@ -86,6 +86,8 @@ public:
         void disconnect(void);
         void disconnect(uint8_t num);
 
+        IPAddress remoteIP(uint8_t num);
+
 private:
         uint16_t _port;