Command demo on/off to hide MAC addresses

esp8266_deauther/cli.cpp

@@ -1570,6 +1570,24 @@ namespace cli {
                               "  -h:  Hidden network\r\n"
                               "  -ch: Channel (default=1)\r\n"
                               "  -b:  BSSID MAC address (default=random)");
+
+        Command cmd_demo = cli.addCommand("demo", [](cmd* c) {
+            Command cmd(c);
+
+            String mode { cmd.getArg("m").getValue() };
+
+            if (mode == "on") {
+                strh::hide_mac(true);
+                debugln("Demo Mode: ACTIVATED");
+            } else {
+                strh::hide_mac(false);
+                debugln("Demo Mode: DEACTIVATED");
+            }
+        });
+        cmd_demo.addPosArg("m/ode", "on");
+        cmd_demo.setDescription("  Demo mode\r\n"
+                                "  on:  turn on demo mode\r\n"
+                                "  off: turn off demo mode");
     }
 
     void parse(const char* input) {

esp8266_deauther/strh.cpp

@@ -7,6 +7,12 @@
 #include "strh.h"
 
 namespace strh {
+    bool hidden { false };
+
+    void hide_mac(bool mode) {
+        hidden = mode;
+    }
+
     String whitespace(int len) {
         String res;
 
@@ -64,8 +70,13 @@ namespace strh {
 
         for (int i = 0; i < len; i++) {
             if (i>0) str += ':';
-            if (b[i] < 0x10) str += '0';
-            str += String(b[i], HEX);
+            if (hidden && (i>=2) && (i<=4)) {
+                str += '*';
+                str += '*';
+            } else {
+                if (b[i] < 0x10) str += '0';
+                str += String(b[i], HEX);
+            }
         }
 
         return str;
@@ -129,7 +140,7 @@ namespace strh {
     }
 
     String boolean(bool value) {
-        if(value) {
+        if (value) {
             return String(F("True"));
         } else {
             return String(F("False"));

esp8266_deauther/strh.h

@@ -9,6 +9,7 @@
 #include <Arduino.h> // String
 
 namespace strh {
+    void hide_mac(bool mode);
     String whitespace(int len);
     String left(int len, String str);
     String right(int len, String str);