From 7ff2e893a3a40758d67e9ce976f383b0a4be84c3 Mon Sep 17 00:00:00 2001
From: Tibor Dusnoki <tdusnoki@inf.u-szeged.hu>
Date: Wed, 23 Feb 2022 10:37:45 +0100
Subject: [PATCH 1/2] Warn when running activity from 32 bit app on ARM
 devices.

Starting August 1, 2019 it is required to have 64-bit versions of apps.
As we prepare for the 64-bit requirement this warning dialog notifies users when running an APK using deprecated ABI to update their apps or contact developers to comply to Google's policies.

Change-Id: If0ca5cbcee571a1095c45c96f0126fce8d0f218c
---
 core/res/res/values/strings.xml               |  3 +
 core/res/res/values/symbols.xml               |  2 +
 .../com/android/server/wm/AppWarnings.java    | 55 +++++++++++++
 .../server/wm/DeprecatedAbiDialog.java        | 80 +++++++++++++++++++
 4 files changed, 140 insertions(+)
 create mode 100644 services/core/java/com/android/server/wm/DeprecatedAbiDialog.java

diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml
index 4a8624222ae8..547ab1de518e 100644
--- a/core/res/res/values/strings.xml
+++ b/core/res/res/values/strings.xml
@@ -5317,6 +5317,9 @@
     <!-- Title for button to see application detail in app store which it came from - it may allow user to update to newer version. [CHAR LIMIT=50] -->
     <string name="deprecated_target_sdk_app_store">Check for update</string>
 
+    <!-- Message displayed in dialog when app is 32 bit on a 64 bit system. [CHAR LIMIT=NONE] -->
+    <string name="deprecated_abi_message">This app needs to be updated by its developer to improve compatibility. Try checking for updates, or contact the developer.</string>
+
     <!-- Notification title shown when new SMS/MMS is received while the device is locked [CHAR LIMIT=NONE] -->
     <string name="new_sms_notification_title">You have new messages</string>
     <!-- Notification content shown when new SMS/MMS is received while the device is locked [CHAR LIMIT=NONE] -->
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 1b1f0bac0e05..d9ce2748f868 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -3068,6 +3068,8 @@
   <java-symbol type="string" name="deprecated_target_sdk_message" />
   <java-symbol type="string" name="deprecated_target_sdk_app_store" />
 
+  <java-symbol type="string" name="deprecated_abi_message" />
+
   <!-- New SMS notification while phone is locked. -->
   <java-symbol type="string" name="new_sms_notification_title" />
   <java-symbol type="string" name="new_sms_notification_content" />
diff --git a/services/core/java/com/android/server/wm/AppWarnings.java b/services/core/java/com/android/server/wm/AppWarnings.java
index 994f07959f3b..7c04ca3e92ba 100644
--- a/services/core/java/com/android/server/wm/AppWarnings.java
+++ b/services/core/java/com/android/server/wm/AppWarnings.java
@@ -40,6 +40,7 @@ import java.io.FileOutputStream;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
+import java.util.Arrays;
 
 /**
  * Manages warning dialogs shown during application lifecycle.
@@ -51,6 +52,7 @@ class AppWarnings {
     public static final int FLAG_HIDE_DISPLAY_SIZE = 0x01;
     public static final int FLAG_HIDE_COMPILE_SDK = 0x02;
     public static final int FLAG_HIDE_DEPRECATED_SDK = 0x04;
+    public static final int FLAG_HIDE_DEPRECATED_ABI = 0x05;
 
     private final HashMap<String, Integer> mPackageFlags = new HashMap<>();
 
@@ -63,6 +65,7 @@ class AppWarnings {
     private UnsupportedDisplaySizeDialog mUnsupportedDisplaySizeDialog;
     private UnsupportedCompileSdkDialog mUnsupportedCompileSdkDialog;
     private DeprecatedTargetSdkVersionDialog mDeprecatedTargetSdkVersionDialog;
+    private DeprecatedAbiDialog mDeprecatedAbiDialog;
 
     /** @see android.app.ActivityManager#alwaysShowUnsupportedCompileSdkWarning */
     private HashSet<ComponentName> mAlwaysShowUnsupportedCompileSdkWarningActivities =
@@ -160,6 +163,19 @@ class AppWarnings {
         }
     }
 
+    /**
+     * Shows the "deprecated abi" warning, if necessary.
+     *
+     * @param r activity record for which the warning may be displayed
+     */
+    public void showDeprecatedAbiDialogIfNeeded(ActivityRecord r) {
+        final String appAbi = r.info.applicationInfo.primaryCpuAbi;
+        final boolean is64BitArmDevice = Arrays.stream(Build.SUPPORTED_64_BIT_ABIS).anyMatch("arm64-v8a"::equals);
+        if (is64BitArmDevice && appAbi != null && appAbi != "arm64-v8a") {
+            mUiHandler.showDeprecatedAbiDialog(r);
+        }
+    }
+
     /**
      * Called when an activity is being started.
      *
@@ -169,6 +185,7 @@ class AppWarnings {
         showUnsupportedCompileSdkDialogIfNeeded(r);
         showUnsupportedDisplaySizeDialogIfNeeded(r);
         showDeprecatedTargetDialogIfNeeded(r);
+        showDeprecatedAbiDialogIfNeeded(r);
     }
 
     /**
@@ -293,6 +310,27 @@ class AppWarnings {
         }
     }
 
+    /**
+     * Shows the "deprecated abi" warning for the given application.
+     * <p>
+     * <strong>Note:</strong> Must be called on the UI thread.
+     *
+     * @param ar record for the activity that triggered the warning
+     */
+    @UiThread
+    private void showDeprecatedAbiDialogUiThread(ActivityRecord ar) {
+        if (mDeprecatedAbiDialog != null) {
+            mDeprecatedAbiDialog.dismiss();
+            mDeprecatedAbiDialog = null;
+        }
+        if (ar != null && !hasPackageFlag(
+                ar.packageName, FLAG_HIDE_DEPRECATED_ABI)) {
+            mDeprecatedAbiDialog = new DeprecatedAbiDialog(
+                    AppWarnings.this, mUiContext, ar.info.applicationInfo);
+            mDeprecatedAbiDialog.show();
+        }
+    }
+
     /**
      * Dismisses all warnings for the given package.
      * <p>
@@ -323,6 +361,13 @@ class AppWarnings {
             mDeprecatedTargetSdkVersionDialog.dismiss();
             mDeprecatedTargetSdkVersionDialog = null;
         }
+
+        // Hides the "deprecated abi" dialog if necessary.
+        if (mDeprecatedAbiDialog != null && (name == null || name.equals(
+                mDeprecatedAbiDialog.getPackageName()))) {
+            mDeprecatedAbiDialog.dismiss();
+            mDeprecatedAbiDialog = null;
+        }
     }
 
     /**
@@ -376,6 +421,7 @@ class AppWarnings {
         private static final int MSG_SHOW_UNSUPPORTED_COMPILE_SDK_DIALOG = 3;
         private static final int MSG_HIDE_DIALOGS_FOR_PACKAGE = 4;
         private static final int MSG_SHOW_DEPRECATED_TARGET_SDK_DIALOG = 5;
+        private static final int MSG_SHOW_DEPRECATED_ABI_DIALOG = 6;
 
         public UiHandler(Looper looper) {
             super(looper, null, true);
@@ -403,6 +449,10 @@ class AppWarnings {
                     final ActivityRecord ar = (ActivityRecord) msg.obj;
                     showDeprecatedTargetSdkDialogUiThread(ar);
                 } break;
+                case MSG_SHOW_DEPRECATED_ABI_DIALOG: {
+                    final ActivityRecord ar = (ActivityRecord) msg.obj;
+                    showDeprecatedAbiDialogUiThread(ar);
+                } break;
             }
         }
 
@@ -426,6 +476,11 @@ class AppWarnings {
             obtainMessage(MSG_SHOW_DEPRECATED_TARGET_SDK_DIALOG, r).sendToTarget();
         }
 
+        public void showDeprecatedAbiDialog(ActivityRecord r) {
+            removeMessages(MSG_SHOW_DEPRECATED_ABI_DIALOG);
+            obtainMessage(MSG_SHOW_DEPRECATED_ABI_DIALOG, r).sendToTarget();
+        }
+
         public void hideDialogsForPackage(String name) {
             obtainMessage(MSG_HIDE_DIALOGS_FOR_PACKAGE, name).sendToTarget();
         }
diff --git a/services/core/java/com/android/server/wm/DeprecatedAbiDialog.java b/services/core/java/com/android/server/wm/DeprecatedAbiDialog.java
new file mode 100644
index 000000000000..d2e611965dd4
--- /dev/null
+++ b/services/core/java/com/android/server/wm/DeprecatedAbiDialog.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.wm;
+
+import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_ATM;
+import static com.android.server.wm.ActivityTaskManagerDebugConfig.TAG_WITH_CLASS_NAME;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageItemInfo;
+import android.content.pm.PackageManager;
+import android.util.Log;
+import android.view.Window;
+import android.view.WindowManager;
+
+import com.android.internal.R;
+
+public class DeprecatedAbiDialog {
+    private static final String TAG = TAG_WITH_CLASS_NAME ? "DeprecatedAbiDialog" : TAG_ATM;
+
+    private final AlertDialog mDialog;
+    private final String mPackageName;
+
+    public DeprecatedAbiDialog(final AppWarnings manager, Context context,
+            ApplicationInfo appInfo) {
+        mPackageName = appInfo.packageName;
+
+        final PackageManager pm = context.getPackageManager();
+        final CharSequence label = appInfo.loadSafeLabel(pm,
+                PackageItemInfo.DEFAULT_MAX_LABEL_SIZE_PX,
+                PackageItemInfo.SAFE_LABEL_FLAG_FIRST_LINE
+                        | PackageItemInfo.SAFE_LABEL_FLAG_TRIM);
+        final CharSequence message = context.getString(R.string.deprecated_abi_message);
+
+        final AlertDialog.Builder builder = new AlertDialog.Builder(context)
+                .setPositiveButton(R.string.ok, (dialog, which) ->
+                    manager.setPackageFlag(
+                            mPackageName, AppWarnings.FLAG_HIDE_DEPRECATED_ABI, true))
+                .setMessage(message)
+                .setTitle(label);
+
+        // Ensure the content view is prepared.
+        mDialog = builder.create();
+        mDialog.create();
+
+        final Window window = mDialog.getWindow();
+        window.setType(WindowManager.LayoutParams.TYPE_PHONE);
+
+        // DO NOT MODIFY. Used by CTS to verify the dialog is displayed.
+        window.getAttributes().setTitle("DeprecatedAbiDialog");
+    }
+
+    public String getPackageName() {
+        return mPackageName;
+    }
+
+    public void show() {
+        Log.w(TAG, "Showing ABI deprecation warning for package " + mPackageName);
+        mDialog.show();
+    }
+
+    public void dismiss() {
+        mDialog.dismiss();
+    }
+}
-- 
2.35.1


From b3da89f8dbcb48c119328d2d4d08d5f501cf51a6 Mon Sep 17 00:00:00 2001
From: flawedworld <flawedworld@flawed.world>
Date: Tue, 12 Apr 2022 23:32:31 +0100
Subject: [PATCH 2/2] Make 32 bit deprecation dialogue more user friendly

---
 core/res/res/values/strings.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml
index 547ab1de518e..51ed800575f7 100644
--- a/core/res/res/values/strings.xml
+++ b/core/res/res/values/strings.xml
@@ -5318,7 +5318,7 @@
     <string name="deprecated_target_sdk_app_store">Check for update</string>
 
     <!-- Message displayed in dialog when app is 32 bit on a 64 bit system. [CHAR LIMIT=NONE] -->
-    <string name="deprecated_abi_message">This app needs to be updated by its developer to improve compatibility. Try checking for updates, or contact the developer.</string>
+    <string name="deprecated_abi_message">This is a 32 bit app, which is a likely indicator that this app is outdated and potentially unmaintained. Try checking for updates, or contact the developer.</string>
 
     <!-- Notification title shown when new SMS/MMS is received while the device is locked [CHAR LIMIT=NONE] -->
     <string name="new_sms_notification_title">You have new messages</string>
-- 
2.35.1

