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(DO NOT MERGE) Fix pub issue #58043: Copy crash in Android 4.3...

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...when clipboard listener attached

We need to clear the calling identity before dispatching change
notifications.  Also make this more robust, so that in the face
of any failure we will clean up the broadcast state.

Integrated from master.

Change-Id: I05e1f76ffd486439535631fe4062dabe94bd2ccf
This commit is contained in:
Dianne Hackborn
2013-07-29 18:11:02 -07:00
parent 38d4cfd4a1
commit a99cb5bc41
2 changed files with 23 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
core/java/android/app/ActivityManager.java
View File

@ -16,6 +16,7 @@
package android.app;
import android.R;
import com.android.internal.app.IUsageStats;
import com.android.internal.os.PkgUsageStats;
import com.android.internal.util.MemInfoReader;
@ -369,9 +370,9 @@ public class ActivityManager {
// Really brain dead right now -- just take this from the configured
// vm heap size, and assume it is in megabytes and thus ends with "m".
String vmHeapSize = SystemProperties.get("dalvik.vm.heapsize", "16m");
return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length()-1));
return Integer.parseInt(vmHeapSize.substring(0, vmHeapSize.length() - 1));
}
/**
* Used by persistent processes to determine if they are running on a
* higher-end device so should be okay using hardware drawing acceleration

35
services/java/com/android/server/ClipboardService.java
View File

@ -154,31 +154,36 @@ public class ClipboardService extends IClipboard.Stub {
if (clip != null && clip.getItemCount() <= 0) {
throw new IllegalArgumentException("No items");
}
if (mAppOps.noteOp(AppOpsManager.OP_WRITE_CLIPBOARD, Binder.getCallingUid(),
final int callingUid = Binder.getCallingUid();
if (mAppOps.noteOp(AppOpsManager.OP_WRITE_CLIPBOARD, callingUid,
callingPackage) != AppOpsManager.MODE_ALLOWED) {
return;
}
checkDataOwnerLocked(clip, Binder.getCallingUid());
checkDataOwnerLocked(clip, callingUid);
clearActiveOwnersLocked();
PerUserClipboard clipboard = getClipboard();
clipboard.primaryClip = clip;
final long ident = Binder.clearCallingIdentity();
final int n = clipboard.primaryClipListeners.beginBroadcast();
for (int i = 0; i < n; i++) {
try {
ListenerInfo li = (ListenerInfo)
clipboard.primaryClipListeners.getBroadcastCookie(i);
if (mAppOps.checkOpNoThrow(AppOpsManager.OP_READ_CLIPBOARD, li.mUid,
li.mPackageName) == AppOpsManager.MODE_ALLOWED) {
clipboard.primaryClipListeners.getBroadcastItem(i)
.dispatchPrimaryClipChanged();
try {
for (int i = 0; i < n; i++) {
try {
ListenerInfo li = (ListenerInfo)
clipboard.primaryClipListeners.getBroadcastCookie(i);
if (mAppOps.checkOpNoThrow(AppOpsManager.OP_READ_CLIPBOARD, li.mUid,
li.mPackageName) == AppOpsManager.MODE_ALLOWED) {
clipboard.primaryClipListeners.getBroadcastItem(i)
.dispatchPrimaryClipChanged();
}
} catch (RemoteException e) {
// The RemoteCallbackList will take care of removing
// the dead object for us.
}
} catch (RemoteException e) {
// The RemoteCallbackList will take care of removing
// the dead object for us.
}
} finally {
clipboard.primaryClipListeners.finishBroadcast();
Binder.restoreCallingIdentity(ident);
}
clipboard.primaryClipListeners.finishBroadcast();
}
}