From 51c5f6e0d2fc8b7456c4de58a6a5c7f78d4289e3 Mon Sep 17 00:00:00 2001
From: Siyamed Sinir <siyamed@google.com>
Date: Wed, 6 Sep 2017 18:02:23 -0700
Subject: Prevent getting data from Clipboard if device is locked

Clipboard should not return data if the device is locked. This CL checks
for device locked state before returning values from get/has functions.

Bug: 64934810
Change-Id: I856a9079fe64db0af44383fae1a9a418de959420
---
 .../com/android/server/clipboard/ClipboardService.java   | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/services/core/java/com/android/server/clipboard/ClipboardService.java b/services/core/java/com/android/server/clipboard/ClipboardService.java
index 1c2684642c53..383f11604acb 100644
--- a/services/core/java/com/android/server/clipboard/ClipboardService.java
+++ b/services/core/java/com/android/server/clipboard/ClipboardService.java
@@ -20,6 +20,7 @@ import android.app.ActivityManagerNative;
 import android.app.AppGlobals;
 import android.app.AppOpsManager;
 import android.app.IActivityManager;
+import android.app.KeyguardManager;
 import android.content.BroadcastReceiver;
 import android.content.ClipData;
 import android.content.ClipDescription;
@@ -247,7 +248,7 @@ public class ClipboardService extends IClipboard.Stub {
     public ClipData getPrimaryClip(String pkg) {
         synchronized (this) {
             if (mAppOps.noteOp(AppOpsManager.OP_READ_CLIPBOARD, Binder.getCallingUid(),
-                    pkg) != AppOpsManager.MODE_ALLOWED) {
+                    pkg) != AppOpsManager.MODE_ALLOWED || isDeviceLocked()) {
                 return null;
             }
             addActiveOwnerLocked(Binder.getCallingUid(), pkg);
@@ -258,7 +259,7 @@ public class ClipboardService extends IClipboard.Stub {
     public ClipDescription getPrimaryClipDescription(String callingPackage) {
         synchronized (this) {
             if (mAppOps.checkOp(AppOpsManager.OP_READ_CLIPBOARD, Binder.getCallingUid(),
-                    callingPackage) != AppOpsManager.MODE_ALLOWED) {
+                    callingPackage) != AppOpsManager.MODE_ALLOWED || isDeviceLocked()) {
                 return null;
             }
             PerUserClipboard clipboard = getClipboard();
@@ -269,7 +270,7 @@ public class ClipboardService extends IClipboard.Stub {
     public boolean hasPrimaryClip(String callingPackage) {
         synchronized (this) {
             if (mAppOps.checkOp(AppOpsManager.OP_READ_CLIPBOARD, Binder.getCallingUid(),
-                    callingPackage) != AppOpsManager.MODE_ALLOWED) {
+                    callingPackage) != AppOpsManager.MODE_ALLOWED || isDeviceLocked()) {
                 return false;
             }
             return getClipboard().primaryClip != null;
@@ -293,7 +294,7 @@ public class ClipboardService extends IClipboard.Stub {
     public boolean hasClipboardText(String callingPackage) {
         synchronized (this) {
             if (mAppOps.checkOp(AppOpsManager.OP_READ_CLIPBOARD, Binder.getCallingUid(),
-                    callingPackage) != AppOpsManager.MODE_ALLOWED) {
+                    callingPackage) != AppOpsManager.MODE_ALLOWED || isDeviceLocked()) {
                 return false;
             }
             PerUserClipboard clipboard = getClipboard();
@@ -305,6 +306,13 @@ public class ClipboardService extends IClipboard.Stub {
         }
     }
 
+    private boolean isDeviceLocked() {
+        final KeyguardManager keyguardManager = (KeyguardManager) mContext.getSystemService(
+                    Context.KEYGUARD_SERVICE);
+        return keyguardManager != null && keyguardManager.isKeyguardLocked()
+                    && keyguardManager.isKeyguardSecure();
+    }
+
     private final void checkUriOwnerLocked(Uri uri, int uid) {
         if (!"content".equals(uri.getScheme())) {
             return;
-- 
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