From 4d0652699a88ad60c2dfdbf7b59065ee684df6d6 Mon Sep 17 00:00:00 2001
From: Shuo Qian <shuoq@google.com>
Date: Tue, 20 Oct 2020 11:04:28 -0700
Subject: [PATCH] Introduce hasCompanionInCallServiceAccess API

It retruns whether the caller has InCallService access for the companion
 apps. A companion app is an app associated with a physical wearable
 device via the {@link android.companion.CompanionDeviceManager} API.

Test: cts
Bug: 169595473
Change-Id: Id659bfae8556e965d3c31613848bde808f28a858
---
 api/current.txt                               |  1 +
 non-updatable-api/current.txt                 |  1 +
 .../java/android/telecom/TelecomManager.java  | 29 +++++++++++++++++++
 .../internal/telecom/ITelecomService.aidl     |  5 ++++
 4 files changed, 36 insertions(+)

diff --git a/api/current.txt b/api/current.txt
index 43c08695348bd..9c2f2dec89762 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -46508,6 +46508,7 @@ package android.telecom {
     method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public String getVoiceMailNumber(android.telecom.PhoneAccountHandle);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean handleMmi(String);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean handleMmi(String, android.telecom.PhoneAccountHandle);
+    method public boolean hasCompanionInCallServiceAccess();
     method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public boolean isInCall();
     method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public boolean isInManagedCall();
     method public boolean isIncomingCallPermitted(android.telecom.PhoneAccountHandle);
diff --git a/non-updatable-api/current.txt b/non-updatable-api/current.txt
index 7c3ff268a10c4..3ef9da3f5379f 100644
--- a/non-updatable-api/current.txt
+++ b/non-updatable-api/current.txt
@@ -44634,6 +44634,7 @@ package android.telecom {
     method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public String getVoiceMailNumber(android.telecom.PhoneAccountHandle);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean handleMmi(String);
     method @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE) public boolean handleMmi(String, android.telecom.PhoneAccountHandle);
+    method public boolean hasCompanionInCallServiceAccess();
     method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public boolean isInCall();
     method @RequiresPermission(android.Manifest.permission.READ_PHONE_STATE) public boolean isInManagedCall();
     method public boolean isIncomingCallPermitted(android.telecom.PhoneAccountHandle);
diff --git a/telecomm/java/android/telecom/TelecomManager.java b/telecomm/java/android/telecom/TelecomManager.java
index 82da4475c1b9d..ae485d502a1e5 100644
--- a/telecomm/java/android/telecom/TelecomManager.java
+++ b/telecomm/java/android/telecom/TelecomManager.java
@@ -32,6 +32,7 @@ import android.content.Intent;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
+import android.os.Process;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.UserHandle;
@@ -1604,6 +1605,30 @@ public class TelecomManager {
         return false;
     }
 
+    /**
+     * Returns whether the caller has {@link InCallService} access for companion apps.
+     *
+     * A companion app is an app associated with a physical wearable device via the
+     * {@link android.companion.CompanionDeviceManager} API.
+     *
+     * @return {@code true} if the caller has {@link InCallService} access for
+     *      companion app; {@code false} otherwise.
+     */
+    public boolean hasCompanionInCallServiceAccess() {
+        try {
+            if (isServiceConnected()) {
+                return getTelecomService().hasCompanionInCallServiceAccess(
+                        mContext.getOpPackageName());
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG, "RemoteException calling hasCompanionInCallServiceAccess().", e);
+            if (!isSystemProcess()) {
+                e.rethrowAsRuntimeException();
+            }
+        }
+        return false;
+    }
+
     /**
      * Returns whether there is an ongoing call originating from a managed
      * {@link ConnectionService}.  An ongoing call can be in dialing, ringing, active or holding
@@ -2416,6 +2441,10 @@ public class TelecomManager {
         }
     }
 
+    private boolean isSystemProcess() {
+        return Process.myUid() == Process.SYSTEM_UID;
+    }
+
     private ITelecomService getTelecomService() {
         if (mTelecomServiceOverride != null) {
             return mTelecomServiceOverride;
diff --git a/telecomm/java/com/android/internal/telecom/ITelecomService.aidl b/telecomm/java/com/android/internal/telecom/ITelecomService.aidl
index 7c6f1df972f38..e636b93deace7 100644
--- a/telecomm/java/com/android/internal/telecom/ITelecomService.aidl
+++ b/telecomm/java/com/android/internal/telecom/ITelecomService.aidl
@@ -178,6 +178,11 @@ interface ITelecomService {
      */
     boolean isInCall(String callingPackage, String callingFeatureId);
 
+    /**
+     * @see TelecomServiceImpl#hasCompanionInCallServiceAccess
+     */
+    boolean hasCompanionInCallServiceAccess(String callingPackage);
+
     /**
      * @see TelecomServiceImpl#isInManagedCall
      */