Update to Android SDK v33

Author: pimterry

app/build.gradle

@@ -3,13 +3,12 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 
 android {
-    compileSdkVersion 30
-    buildToolsVersion "29.0.3"
+    compileSdkVersion 33
 
     defaultConfig {
         applicationId "tech.httptoolkit.android.v1"
         minSdkVersion 21
-        targetSdkVersion 30
+        targetSdkVersion 33
         versionCode 23
         versionName "1.3.3"
 

app/src/main/AndroidManifest.xml

@@ -30,7 +30,8 @@
             android:largeHeap="true">
         <service
             android:name=".ProxyVpnService"
-            android:permission="android.permission.BIND_VPN_SERVICE">
+            android:permission="android.permission.BIND_VPN_SERVICE"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.net.VpnService"/>
                 <action android:name="tech.httptoolkit.android.ProxyVpnService"/>
@@ -39,8 +40,8 @@
 
         <activity
                 android:name=".MainActivity"
-                android:label="@string/app_name"
-                android:launchMode="singleTask">
+                android:launchMode="singleTask"
+                android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
@@ -69,7 +70,8 @@
         <activity-alias
                 android:name=".RemoteControlMainActivity"
                 android:targetActivity=".MainActivity"
-                android:permission="android.permission.INJECT_EVENTS">
+                android:permission="android.permission.INJECT_EVENTS"
+                android:exported="true">
             <intent-filter>
                 <action android:name="tech.httptoolkit.android.ACTIVATE" />
                 <category android:name="android.intent.category.DEFAULT" />

app/src/main/java/tech/httptoolkit/android/ProxyVpnService.kt

@@ -111,15 +111,19 @@ class ProxyVpnService : VpnService(), IProtectSocket {
     }
 
     private fun showServiceNotification() {
+        val intentFlags = // Required because IMMUTABLE isn't available in older versions
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) PendingIntent.FLAG_IMMUTABLE
+            else 0
+
         val pendingActivityIntent: PendingIntent =
             Intent(this, MainActivity::class.java).let { notificationIntent ->
-                PendingIntent.getActivity(this, 0, notificationIntent, 0)
+                PendingIntent.getActivity(this, 0, notificationIntent, intentFlags)
             }
 
         val pendingServiceIntent: PendingIntent =
             Intent(this, ProxyVpnService::class.java).let { notificationIntent ->
                 notificationIntent.action = STOP_VPN_ACTION
-                PendingIntent.getService(this, 1, notificationIntent, 0)
+                PendingIntent.getService(this, 1, notificationIntent, intentFlags)
             }
 
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {