From 7e0de29dd75a981446183d59ccf757ceb399d8d8 Mon Sep 17 00:00:00 2001
From: Alex Hart <alex@signal.org>
Date: Tue, 26 Nov 2019 11:51:13 -0400
Subject: [PATCH] Add notification policy permission and runtime check.

Fixes #9217
---
 AndroidManifest.xml                                          | 1 +
 .../securesms/notifications/DoNotDisturbUtil.java            | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 2e6261673d..921daf8c9a 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -27,6 +27,7 @@
                      tools:ignore="ProtectedPermissions"/>
     <uses-permission android:name="android.permission.READ_CONTACTS"/>
     <uses-permission android:name="android.permission.WRITE_CONTACTS"/>
+    <uses-permission android:name="android.permission.ACCESS_NOTIFICATION_POLICY" />
 
     <uses-permission android:name="android.permission.RECEIVE_SMS"/>
     <uses-permission android:name="android.permission.RECEIVE_MMS"/>
diff --git a/src/org/thoughtcrime/securesms/notifications/DoNotDisturbUtil.java b/src/org/thoughtcrime/securesms/notifications/DoNotDisturbUtil.java
index 50e96ca4bc..0559cc4565 100644
--- a/src/org/thoughtcrime/securesms/notifications/DoNotDisturbUtil.java
+++ b/src/org/thoughtcrime/securesms/notifications/DoNotDisturbUtil.java
@@ -43,6 +43,11 @@ public final class DoNotDisturbUtil {
 
   @RequiresApi(23)
   private static boolean handlePriority(@NonNull Context context, @NonNull NotificationManager notificationManager, @NonNull Recipient recipient) {
+    if (Build.VERSION.SDK_INT < 28 && !notificationManager.isNotificationPolicyAccessGranted()) {
+      Log.w(TAG, "Notification Policy is not granted");
+      return true;
+    }
+
     final NotificationManager.Policy policy                = notificationManager.getNotificationPolicy();
     final boolean                    areCallsPrioritized   = (policy.priorityCategories & NotificationManager.Policy.PRIORITY_CATEGORY_CALLS) != 0;
     final boolean                    isRepeatCallerEnabled = (policy.priorityCategories & NotificationManager.Policy.PRIORITY_CATEGORY_REPEAT_CALLERS) != 0;