From 058241c9180c5e9a0a256e8e22865c329ffb2f0f Mon Sep 17 00:00:00 2001
From: Alessandro Ferro <49845537+xfarrow@users.noreply.github.com>
Date: Fri, 30 Sep 2022 09:31:00 +0200
Subject: [PATCH] Added options "wifi-enable" and "wifi-disable"

---
 src/app/src/main/AndroidManifest.xml          |  3 +-
 .../xfarrow/locatemydevice/SmsHandler.java    | 63 ++++++++++++++-----
 .../com/xfarrow/locatemydevice/Utils.java     |  2 +
 3 files changed, 50 insertions(+), 18 deletions(-)

diff --git a/src/app/src/main/AndroidManifest.xml b/src/app/src/main/AndroidManifest.xml
index b23efec..ac5506c 100644
--- a/src/app/src/main/AndroidManifest.xml
+++ b/src/app/src/main/AndroidManifest.xml
@@ -11,6 +11,7 @@
     <uses-permission android:name="android.permission.CALL_PHONE" />
     <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
 
     <application
         android:allowBackup="true"
@@ -21,7 +22,7 @@
         android:roundIcon="@drawable/logo"
         android:supportsRtl="true"
         android:theme="@style/Theme.LocateMyDevice"
-        tools:targetApi="31">
+        tools:targetApi="30">
 
         <!-- https://developer.android.com/guide/topics/manifest/receiver-element -->
         <receiver
diff --git a/src/app/src/main/java/com/xfarrow/locatemydevice/SmsHandler.java b/src/app/src/main/java/com/xfarrow/locatemydevice/SmsHandler.java
index 1241e75..365c38f 100644
--- a/src/app/src/main/java/com/xfarrow/locatemydevice/SmsHandler.java
+++ b/src/app/src/main/java/com/xfarrow/locatemydevice/SmsHandler.java
@@ -1,6 +1,7 @@
 package com.xfarrow.locatemydevice;
 
 import android.Manifest;
+import android.annotation.SuppressLint;
 import android.app.admin.DevicePolicyManager;
 import android.content.Context;
 import android.content.Intent;
@@ -36,6 +37,7 @@ public class SmsHandler {
      * [command] [password] [option]
      *
      */
+    @SuppressLint("ObsoleteSdkInt")
     public void handleSms(String message, String sender, Context context) {
         Settings settings = new Settings(context);
         String password = settings.get(Settings.PASSWORD);
@@ -56,7 +58,7 @@ public class SmsHandler {
                 + "|"
                 + Utils.CALL_ME_OPTION
                 + "|"
-                + Utils.WIFI_OPTION;
+                + Utils.WIFI_OPTION + "((" + Utils.WIFI_ENABLE_SUBOPTION + ")|(" + Utils.WIFI_DISABLE_SUBOPTION + "))?";
 
         Pattern pattern = Pattern.compile(regexToMatch);
         Matcher matcher = pattern.matcher(message);
@@ -238,30 +240,39 @@ public class SmsHandler {
         // wifi
         else if(providedOption.equals(Utils.WIFI_OPTION)){
             StringBuilder responseSms = new StringBuilder();
+
+            LocationManager locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
+
+            if(!locationManager.isLocationEnabled() && Build.VERSION.SDK_INT >= Build.VERSION_CODES.O_MR1) {
+                responseSms.append("Location is off. Unable to execute command.");
+                Utils.sendSms(smsManager, responseSms.toString(), sender);
+                return;
+            }
+
             WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
             responseSms.append("Wifi enabled: ");
 
-            if(!wifiManager.isWifiEnabled()){
+            if (!wifiManager.isWifiEnabled()) {
                 responseSms.append("No");
-            }
-            else{
-                responseSms.append("Yes\n");
-
-                WifiInfo wifiInfo = wifiManager.getConnectionInfo();
-                String ssid = (wifiInfo.getSSID().equals(WifiManager.UNKNOWN_SSID))?
-                        "Not connected or unknown" : wifiInfo.getSSID();
-
-                responseSms.append("SSID: ").append(ssid).append("\n");
-                responseSms.append("BSSID: ").append(wifiInfo.getBSSID()).append("\n");
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                    responseSms.append("Strength: ").append(wifiManager.calculateSignalLevel(wifiInfo.getRssi()))
-                            .append("/").append(wifiManager.getMaxSignalLevel()).append("\n");
-                }
+                Utils.sendSms(smsManager, responseSms.toString(), sender);
+                return;
             }
 
+            responseSms.append("Yes\n");
+            WifiInfo wifiInfo = wifiManager.getConnectionInfo();
+            String ssid = (wifiInfo.getSSID().equals(WifiManager.UNKNOWN_SSID)) ?
+                    "Not connected or unknown" : wifiInfo.getSSID();
+            String bssid = (wifiInfo.getBSSID().equals("02:00:00:00:00:00")) ?
+                    "Not connected or unknown" : wifiInfo.getBSSID();
+            responseSms.append("SSID: ").append(ssid).append("\n");
+            responseSms.append("BSSID: ").append(bssid).append("\n");
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+                responseSms.append("Strength: ").append(wifiManager.calculateSignalLevel(wifiInfo.getRssi()))
+                        .append("/").append(wifiManager.getMaxSignalLevel()).append("\n");
+            }
             responseSms.append("\nNearby networks:");
             List<ScanResult> scanResults = wifiManager.getScanResults();
-            for(ScanResult scanResult : scanResults){
+            for (ScanResult scanResult : scanResults) {
                 responseSms.append("\n");
                 responseSms.append("SSID: ").append(scanResult.SSID).append("\n");
                 responseSms.append("BSSID: ").append(scanResult.BSSID).append("\n");
@@ -269,5 +280,23 @@ public class SmsHandler {
             }
             Utils.sendSms(smsManager, responseSms.toString(), sender);
         }
+
+        // wifi-enabled OR wifi-disabled
+        else if(providedOption.contains(Utils.WIFI_OPTION) && (providedOption.contains(Utils.WIFI_ENABLE_SUBOPTION)
+        || providedOption.contains(Utils.WIFI_DISABLE_SUBOPTION))){
+
+            StringBuilder responseSms = new StringBuilder();
+            if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q){
+                responseSms.append("Your device does not support this option.");
+                Utils.sendSms(smsManager, responseSms.toString(), sender);
+                return;
+            }
+
+            WifiManager wifiManager = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
+            wifiManager.setWifiEnabled(providedOption.contains(Utils.WIFI_ENABLE_SUBOPTION));
+            responseSms.append("Command executed");
+            Utils.sendSms(smsManager, responseSms.toString(), sender);
+        }
+
     }
 }
diff --git a/src/app/src/main/java/com/xfarrow/locatemydevice/Utils.java b/src/app/src/main/java/com/xfarrow/locatemydevice/Utils.java
index 8750176..c7c8268 100644
--- a/src/app/src/main/java/com/xfarrow/locatemydevice/Utils.java
+++ b/src/app/src/main/java/com/xfarrow/locatemydevice/Utils.java
@@ -17,6 +17,8 @@ public class Utils {
     public static final String BATTERY_OPTION = "battery";
     public static final String CALL_ME_OPTION = "callme";
     public static final String WIFI_OPTION = "wifi";
+    public static final String WIFI_ENABLE_SUBOPTION = "-enable";
+    public static final String WIFI_DISABLE_SUBOPTION = "-disable";
 
     public static String getCountryNameByIso(String iso){
         Locale locale = new Locale("", iso);