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.

Test: bit -t CtsContentTestCases:android.content.cts.ClipboardManagerTest

Bug: 64934810
Change-Id: Icefac226615fe22a7735dff4ba4c3b528fb2ac12
(cherry picked from commit 93d77b07c34077b6c403c459b7bb75933446a502)

1 files changed, 11 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 db72c5e4cbab..efc930ebf8ea 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.ActivityManager;
 import android.app.AppGlobals;
 import android.app.AppOpsManager;
 import android.app.IActivityManager;
+import android.app.KeyguardManager;
 import android.content.ClipData;
 import android.content.ClipDescription;
 import android.content.ContentProvider;
@@ -304,7 +305,7 @@ public class ClipboardService extends SystemService {
         public ClipData getPrimaryClip(String pkg) {
             synchronized (this) {
                 if (!clipboardAccessAllowed(AppOpsManager.OP_READ_CLIPBOARD, pkg,
-                            Binder.getCallingUid())) {
+                            Binder.getCallingUid()) || isDeviceLocked()) {
                     return null;
                 }
                 addActiveOwnerLocked(Binder.getCallingUid(), pkg);
@@ -316,7 +317,7 @@ public class ClipboardService extends SystemService {
         public ClipDescription getPrimaryClipDescription(String callingPackage) {
             synchronized (this) {
                 if (!clipboardAccessAllowed(AppOpsManager.OP_READ_CLIPBOARD, callingPackage,
-                            Binder.getCallingUid())) {
+                            Binder.getCallingUid()) || isDeviceLocked()) {
                     return null;
                 }
                 PerUserClipboard clipboard = getClipboard();
@@ -328,7 +329,7 @@ public class ClipboardService extends SystemService {
         public boolean hasPrimaryClip(String callingPackage) {
             synchronized (this) {
                 if (!clipboardAccessAllowed(AppOpsManager.OP_READ_CLIPBOARD, callingPackage,
-                            Binder.getCallingUid())) {
+                            Binder.getCallingUid()) || isDeviceLocked()) {
                     return false;
                 }
                 return getClipboard().primaryClip != null;
@@ -355,7 +356,7 @@ public class ClipboardService extends SystemService {
         public boolean hasClipboardText(String callingPackage) {
             synchronized (this) {
                 if (!clipboardAccessAllowed(AppOpsManager.OP_READ_CLIPBOARD, callingPackage,
-                            Binder.getCallingUid())) {
+                            Binder.getCallingUid()) || isDeviceLocked()) {
                     return false;
                 }
                 PerUserClipboard clipboard = getClipboard();
@@ -433,6 +434,12 @@ public class ClipboardService extends SystemService {
         }
     }
 
+    private boolean isDeviceLocked() {
+        final KeyguardManager keyguardManager = getContext().getSystemService(
+                    KeyguardManager.class);
+        return keyguardManager != null && keyguardManager.isDeviceLocked();
+    }
+
     private final void checkUriOwnerLocked(Uri uri, int uid) {
         if (!"content".equals(uri.getScheme())) {
             return;