Extension with the ability to get a mac address on Android devices

src/android/wifiwizard2/WifiWizard2.java

@@ -17,7 +17,8 @@
 import org.apache.cordova.*;
 
 import java.util.List;
-import java.util.concurrent.Future; 
+import java.util.Collections;
+import java.util.concurrent.Future;
 import java.lang.InterruptedException;
 
 import org.json.JSONArray;
@@ -95,9 +96,9 @@ public class WifiWizard2 extends CordovaPlugin {
   private static final String RESET_BIND_ALL = "resetBindAll";
   private static final String SET_BIND_ALL = "setBindAll";
   private static final String GET_WIFI_IP_INFO = "getWifiIPInfo";
+  private static final String GET_MAC_ADDRESS = "getMacAddress";
 
 
-
   private static final int SCAN_RESULTS_CODE = 0; // Permissions request code for getScanResults()
   private static final int SCAN_CODE = 1; // Permissions request code for scan()
   private static final int LOCATION_REQUEST_CODE = 2; // Permissions request code
@@ -187,6 +188,7 @@ public boolean execute(String action, JSONArray data, CallbackContext callbackCo
       }
 
     } else if (action.equals(GET_WIFI_IP_ADDRESS) || action.equals(GET_WIFI_IP_INFO)) {
+      String macAddress = getMacAddress();
       String[] ipInfo = getWiFiIPAddress();
       String ip = ipInfo[0];
       String subnet = ipInfo[1];
@@ -206,9 +208,13 @@ public boolean execute(String action, JSONArray data, CallbackContext callbackCo
 
       result.put("ip", ip);
       result.put("subnet", subnet);
+      result.put("macAddress", macAddress);
 
       callbackContext.success(result);
       return true;
+    } else if (action.equals(GET_MAC_ADDRESS)){
+        String macAddress = getMacAddress();
+        callbackContext.success(macAddress);
     }
 
     boolean wifiIsEnabled = verifyWifiEnabled();
@@ -1199,7 +1205,7 @@ private boolean getConnectedBSSID(CallbackContext callbackContext) {
    * @param basicIdentifier A flag to get BSSID if true or SSID if false.
    * @return true if SSID found, false if not.
    */
-  private boolean getWifiServiceInfo(CallbackContext callbackContext, boolean basicIdentifier) {    
+  private boolean getWifiServiceInfo(CallbackContext callbackContext, boolean basicIdentifier) {
     if (API_VERSION >= 23 && !cordova.hasPermission(ACCESS_FINE_LOCATION)) { //Android 9 (Pie) or newer
       requestLocationPermission(WIFI_SERVICE_INFO_CODE);
       bssidRequested = basicIdentifier;
@@ -1211,56 +1217,89 @@ private boolean getWifiServiceInfo(CallbackContext callbackContext, boolean basi
         callbackContext.error("UNABLE_TO_READ_WIFI_INFO");
         return false;
       }
-  
+
       // Only return SSID or BSSID when actually connected to a network
       SupplicantState state = info.getSupplicantState();
       if (!state.equals(SupplicantState.COMPLETED)) {
         callbackContext.error("CONNECTION_NOT_COMPLETED");
         return false;
       }
-  
+
       String serviceInfo;
       if (basicIdentifier) {
         serviceInfo = info.getBSSID();
       } else {
         serviceInfo = info.getSSID();
       }
-  
+
       if (serviceInfo == null || serviceInfo.isEmpty() || serviceInfo == "0x") {
         callbackContext.error("WIFI_INFORMATION_EMPTY");
         return false;
       }
-  
+
       // http://developer.android.com/reference/android/net/wifi/WifiInfo.html#getSSID()
       if (serviceInfo.startsWith("\"") && serviceInfo.endsWith("\"")) {
         serviceInfo = serviceInfo.substring(1, serviceInfo.length() - 1);
       }
-  
+
       callbackContext.success(serviceInfo);
       return true;
     }
   }
 
   /**
-   * This method retrieves the current WiFi status
+   * This method return mac address
    *
-   * @param callbackContext A Cordova callback context
-   * @return true if WiFi is enabled, fail will be called if not.
+   * @return mac address
    */
-  private boolean isWifiEnabled(CallbackContext callbackContext) {
-    boolean isEnabled = wifiManager.isWifiEnabled();
-    callbackContext.success(isEnabled ? "1" : "0");
-    return isEnabled;
+  private String getMacAddress() {
+    try {
+      String interfaceName = "wlan0";
+      List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
+      for (NetworkInterface intf : interfaces) {
+        if (!intf.getName().equalsIgnoreCase(interfaceName)) {
+          continue;
+        }
+
+        byte[] mac = intf.getHardwareAddress();
+        if (mac == null) {
+          return "";
+        }
+
+        StringBuilder buf = new StringBuilder();
+        for (byte aMac : mac) {
+          buf.append(String.format("%02X:", aMac));
+        }
+        if (buf.length() > 0) {
+          buf.deleteCharAt(buf.length() - 1);
+        }
+        return buf.toString();
+      }
+    } catch (Exception ex) {
+    }
+    return "";
   }
 
+/**
+ * This method retrieves the current WiFi status
+ *
+ * @param callbackContext A Cordova callback context
+ * @return true if WiFi is enabled, fail will be called if not.
+ */
+private boolean isWifiEnabled(CallbackContext callbackContext){
+        boolean isEnabled=wifiManager.isWifiEnabled();
+        callbackContext.success(isEnabled?"1":"0");
+        return isEnabled;
+        }
+
   /**
    * This method takes a given String, searches the current list of configured WiFi networks, and
    * returns the networkId for the network if the SSID matches. If not, it returns -1.
    */
   private int ssidToNetworkId(String ssid) {
 
     try {
-      
+
       int maybeNetId = Integer.parseInt(ssid);
       Log.d(TAG, "ssidToNetworkId passed SSID is integer, probably a Network ID: " + ssid);
       return maybeNetId;
@@ -1544,7 +1583,7 @@ private boolean canConnectToInternet(CallbackContext callbackContext, boolean do
 
   /**
    * Check if we can conenct to router via HTTP connection
-   * 
+   *
    * @param callbackContext
    * @param doPing
    * @return boolean
@@ -1623,7 +1662,7 @@ public boolean hasConnectionToRouter( boolean doPing ) {
 
   /**
    * Check if HTTP connection to URL is reachable
-   * 
+   *
    * @param checkURL
    * @return boolean
    */

www/WifiWizard2.js

@@ -366,7 +366,7 @@ var WifiWizard2 = {
 			cordova.exec(resolve, reject, "WifiWizard2", "setBindAll", []);
 		});
     },
-    
+
     /**
      * Get Wifi Router IP from DHCP
      * @returns {Promise<any>}
@@ -385,10 +385,19 @@ var WifiWizard2 = {
             cordova.exec(resolve, reject, "WifiWizard2", "getWifiIP", []);
         });
     },
+    /**
+     * Get Mac Address
+     * @returns {Promise<any>}
+     */
+    getMacAddress: function () {
+        return new Promise(function (resolve, reject) {
+            cordova.exec(resolve, reject, "WifiWizard2", "getMacAddress", []);
+        });
+    },
     /**
      * Get Wifi IP and Subnet Address
      *
-     * This method returns a JSON object similar to: { "ip": "0.0.0.0", "subnet": "0.0.0.0" }
+     * This method returns a JSON object similar to: { "ip": "0.0.0.0", "subnet": "0.0.0.0", "macAddress":"0.0.0.0"}
      * @returns {Promise<any>}
      */
     getWifiIPInfo: function () {
@@ -623,7 +632,7 @@ var WifiWizard2 = {
 
         if(device.platform === "Android" && parseInt(device.version.split('.')[0]) >= 10){
             // Do not add "" To the SSID, as the new method for Android Q does not support it
-        } 
+        }
         else {
             if (ssid.charAt(0) != '"') {
                 ssid = '"' + ssid;