gradle: remove runtime detection of play store

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

tunnel/build.gradle.kts

@@ -48,6 +48,9 @@ android {
                 }
             }
         }
+        create("googleplay") {
+            initWith(getByName("release"))
+        }
     }
     lint {
         disable.add("LongLogTag")

ui/build.gradle.kts

@@ -23,6 +23,7 @@ android {
         versionCode = providers.gradleProperty("wireguardVersionCode").get().toInt()
         versionName = providers.gradleProperty("wireguardVersionName").get()
         buildConfigField("int", "MIN_SDK_VERSION", minSdk.toString())
+        buildConfigField("boolean", "IS_GOOGLE_PLAY", false.toString())
     }
     compileOptions {
         sourceCompatibility = JavaVersion.VERSION_17
@@ -45,6 +46,10 @@ android {
             applicationIdSuffix = ".debug"
             versionNameSuffix = "-debug"
         }
+        create("googleplay") {
+            initWith(getByName("release"))
+            buildConfigField("boolean", "IS_GOOGLE_PLAY", true.toString())
+        }
     }
     lint {
         disable.add("LongLogTag")

ui/src/googleplay/AndroidManifest.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" tools:node="remove" />
+    <application>
+       <receiver android:name=".updater.Updater$AppUpdatedReceiver" tools:node="remove" />
+    </application>
+</manifest>

ui/src/main/AndroidManifest.xml

@@ -104,6 +104,11 @@
             <intent-filter>
                 <action android:name="android.intent.action.ACTION_SHUTDOWN" />
                 <action android:name="android.intent.action.BOOT_COMPLETED" />
+            </intent-filter>
+        </receiver>
+
+        <receiver android:name=".updater.Updater$AppUpdatedReceiver" android:exported="true">
+            <intent-filter>
                 <action android:name="android.intent.action.MY_PACKAGE_REPLACED" />
             </intent-filter>
         </receiver>

ui/src/main/java/com/wireguard/android/BootShutdownReceiver.kt

@@ -8,25 +8,13 @@ import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
 import android.util.Log
-import com.wireguard.android.activity.MainActivity
 import com.wireguard.android.backend.WgQuickBackend
-import com.wireguard.android.updater.Updater
 import com.wireguard.android.util.applicationScope
 import kotlinx.coroutines.launch
 
 class BootShutdownReceiver : BroadcastReceiver() {
     override fun onReceive(context: Context, intent: Intent) {
         val action = intent.action ?: return
-
-        if (Intent.ACTION_MY_PACKAGE_REPLACED == action && Updater.installer() == context.packageName) {
-            /* TODO: does not work because of restrictions placed on broadcast receivers. */
-            val start = Intent(context, MainActivity::class.java)
-            start.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
-            start.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
-            context.startActivity(start)
-            return
-        }
-
         applicationScope.launch {
             if (Application.getBackend() !is WgQuickBackend) return@launch
             val tunnelManager = Application.getTunnelManager()

ui/src/main/java/com/wireguard/android/preference/DonatePreference.kt

@@ -8,13 +8,12 @@ package com.wireguard.android.preference
 import android.content.Context
 import android.content.Intent
 import android.net.Uri
-import android.os.Build
 import android.util.AttributeSet
 import android.widget.Toast
 import androidx.preference.Preference
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import com.wireguard.android.BuildConfig
 import com.wireguard.android.R
-import com.wireguard.android.updater.Updater
 import com.wireguard.android.util.ErrorMessages
 
 class DonatePreference(context: Context, attrs: AttributeSet?) : Preference(context, attrs) {
@@ -24,7 +23,7 @@ class DonatePreference(context: Context, attrs: AttributeSet?) : Preference(cont
 
     override fun onClick() {
         /* Google Play Store forbids links to our donation page. */
-        if (Updater.installerIsGooglePlay()) {
+        if (BuildConfig.IS_GOOGLE_PLAY) {
             MaterialAlertDialogBuilder(context)
                 .setTitle(R.string.donate_title)
                 .setMessage(R.string.donate_google_play_disappointment)

ui/src/main/java/com/wireguard/android/updater/SnackbarUpdateShower.kt

@@ -11,6 +11,7 @@ import androidx.fragment.app.FragmentActivity
 import androidx.lifecycle.lifecycleScope
 import com.google.android.material.snackbar.BaseTransientBottomBar
 import com.google.android.material.snackbar.Snackbar
+import com.wireguard.android.BuildConfig
 import com.wireguard.android.R
 import com.wireguard.android.util.ErrorMessages
 import com.wireguard.android.util.QuantityFormatter
@@ -88,6 +89,9 @@ object SnackbarUpdateShower {
     }
 
     fun attachToActivity(activity: FragmentActivity, view: View, anchor: View?) {
+        if (BuildConfig.IS_GOOGLE_PLAY)
+            return
+
         val snackbar = SwapableSnackbar(activity, view, anchor)
         val context = activity.applicationContext
 

ui/src/main/java/com/wireguard/android/updater/Updater.kt

@@ -17,6 +17,7 @@ import androidx.core.content.ContextCompat
 import androidx.core.content.IntentCompat
 import com.wireguard.android.Application
 import com.wireguard.android.BuildConfig
+import com.wireguard.android.activity.MainActivity
 import com.wireguard.android.util.UserKnobs
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -360,7 +361,7 @@ object Updater {
     }
 
     fun monitorForUpdates() {
-        if (installerIsGooglePlay())
+        if (BuildConfig.IS_GOOGLE_PLAY)
             return
 
         updaterScope.launch {
@@ -400,9 +401,15 @@ object Updater {
         }.launchIn(Application.getCoroutineScope())
     }
 
-    fun installer(): String {
+    class AppUpdatedReceiver : BroadcastReceiver() {
-        val context = Application.get().applicationContext
+        override fun onReceive(context: Context, intent: Intent) {
-        return try {
+            if (BuildConfig.IS_GOOGLE_PLAY)
+                return
+
+            if (intent.action != Intent.ACTION_MY_PACKAGE_REPLACED)
+                return
+
+            val installer = try {
                 val packageName = context.packageName
                 val pm = context.packageManager
                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
@@ -414,7 +421,14 @@ object Updater {
             } catch (_: Throwable) {
                 ""
             }
-    }
+            if (installer != context.packageName)
+                return
 
-    fun installerIsGooglePlay(): Boolean = installer() == "com.android.vending"
+            /* TODO: does not work because of restrictions placed on broadcast receivers. */
+            val start = Intent(context, MainActivity::class.java)
+            start.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
+            start.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+            context.startActivity(start)
+        }
+    }
 }