Added service to detect and block tor apps.

app/build.gradle.kts

@@ -11,8 +11,8 @@ android {
         applicationId = "com.cgprograms.dnslock"
         minSdk = 29
         targetSdk = 34
-        versionCode = 5
-        versionName = "3.1.0"
+        versionCode = 6
+        versionName = "4.0.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {

app/release/output-metadata.json

@@ -11,8 +11,8 @@
       "type": "SINGLE",
       "filters": [],
       "attributes": [],
-      "versionCode": 5,
-      "versionName": "3.1.0",
+      "versionCode": 6,
+      "versionName": "4.0.0",
       "outputFile": "app-release.apk"
     }
   ],

app/src/main/AndroidManifest.xml

@@ -9,6 +9,7 @@
     <uses-permission android:name="android.permission.MANAGE_DEVICE_ADMINS" />
     <uses-permission android:name="android.permission.BIND_DEVICE_ADMIN" />
     <uses-permission android:name="android.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS" />
+    <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS"/>
 
     <application
         android:allowBackup="true"
@@ -24,8 +25,8 @@
         <service
             android:name=".WifiTileService"
             android:exported="true"
-            android:label="Wi-Fi Toggle"
             android:icon="@drawable/baseline_wifi_24"
+            android:label="Wi-Fi Toggle"
             android:permission="android.permission.BIND_QUICK_SETTINGS_TILE">
             <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
@@ -38,13 +39,13 @@
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
-                <action android:name="android.service.quicksettings.action.QS_TILE_PREFERENCES"/>
+                <action android:name="android.service.quicksettings.action.QS_TILE_PREFERENCES" />
             </intent-filter>
         </activity>
 
         <receiver
             android:name=".MyDeviceAdminReceiver"
-            android:exported="true"
+            android:exported="false"
             android:permission="android.permission.BIND_DEVICE_ADMIN">
             <meta-data
                 android:name="android.app.device_admin"
@@ -54,6 +55,10 @@
             </intent-filter>
         </receiver>
 
+        <service
+            android:name=".TorMonitorService"
+            android:exported="false" />
+
     </application>
 
 </manifest>

app/src/main/java/com/cgprograms/dnslock/MyDeviceAdminReceiver.kt

@@ -7,6 +7,7 @@ import android.content.Context
 import android.content.Intent
 import android.os.UserManager
 
+
 class MyDeviceAdminReceiver : DeviceAdminReceiver() {
     override fun onEnabled(context: Context, intent: Intent) {
         super.onEnabled(context, intent)
@@ -16,6 +17,8 @@ class MyDeviceAdminReceiver : DeviceAdminReceiver() {
 
         dpm.addUserRestriction(adminComponent, UserManager.DISALLOW_CONFIG_PRIVATE_DNS)
         dpm.addUserRestriction(adminComponent, UserManager.DISALLOW_CONFIG_WIFI)
+
+        context.startService(Intent(context, TorMonitorService::class.java))
     }
 
     override fun onDisabled(context: Context, intent: Intent) {

app/src/main/java/com/cgprograms/dnslock/TorMonitorService.kt

@@ -0,0 +1,63 @@
+package com.cgprograms.dnslock
+
+import android.app.Service
+import android.app.admin.DevicePolicyManager
+import android.app.usage.UsageEvents
+import android.app.usage.UsageStatsManager
+import android.content.ComponentName
+import android.content.Context
+import android.content.Intent
+import android.os.Handler
+import android.os.IBinder
+import android.os.Looper
+
+class TorMonitorService : Service() {
+
+    private val handler = Handler(Looper.getMainLooper())
+    private val checkInterval: Long = 60000
+
+    private val checkTorRunnable = object : Runnable {
+        override fun run() {
+            checkTorUsage()
+            handler.postDelayed(this, checkInterval)
+        }
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        handler.post(checkTorRunnable)
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        handler.removeCallbacks(checkTorRunnable)
+    }
+
+    override fun onBind(intent: Intent?): IBinder? {
+        return null
+    }
+
+    private fun checkTorUsage() {
+        val usageStatsManager = getSystemService(Context.USAGE_STATS_SERVICE) as UsageStatsManager
+        val currentTime = System.currentTimeMillis()
+        val usageEvents = usageStatsManager.queryEvents(currentTime - checkInterval, currentTime)
+
+        while (usageEvents.hasNextEvent()) {
+            val event = UsageEvents.Event()
+            usageEvents.getNextEvent(event)
+
+            if (event.eventType == UsageEvents.Event.ACTIVITY_RESUMED) {
+                val packageName = event.packageName
+                if (packageName.contains("torproject") || packageName.contains("torbrowser")) {
+                    val dpm = getSystemService(Context.DEVICE_POLICY_SERVICE) as DevicePolicyManager
+                    val adminComponent = ComponentName(this, MyDeviceAdminReceiver::class.java)
+
+                    dpm.setUninstallBlocked(adminComponent, packageName, true)
+                    dpm.setPackagesSuspended(
+                        adminComponent, arrayOf<String>(packageName), true
+                    )
+                }
+            }
+        }
+    }
+}