Added sendBroadcastMultiplePermissions method

Added Context.sendBroadcastMultiplePermissions(Intent intent, String[]
receiverPermissions) method, which allows an array of required permissions
to be enforced.

Bug: 21852542
Change-Id: I27c9130e8f004b428452501ebc8a36aabde1f343

5 files changed, 77 insertions, 15 deletions

diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index cc93ac906d06..fc408a8158b6 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -456,14 +456,14 @@ public abstract class ActivityManagerNative extends Binder implements IActivityM
             int resultCode = data.readInt();
             String resultData = data.readString();
             Bundle resultExtras = data.readBundle();
-            String perm = data.readString();
+            String[] perms = data.readStringArray();
             int appOp = data.readInt();
             Bundle options = data.readBundle();
             boolean serialized = data.readInt() != 0;
             boolean sticky = data.readInt() != 0;
             int userId = data.readInt();
             int res = broadcastIntent(app, intent, resolvedType, resultTo,
-                    resultCode, resultData, resultExtras, perm, appOp,
+                    resultCode, resultData, resultExtras, perms, appOp,
                     options, serialized, sticky, userId);
             reply.writeNoException();
             reply.writeInt(res);
@@ -3007,7 +3007,7 @@ class ActivityManagerProxy implements IActivityManager
     public int broadcastIntent(IApplicationThread caller,
             Intent intent, String resolvedType, IIntentReceiver resultTo,
             int resultCode, String resultData, Bundle map,
-            String requiredPermission, int appOp, Bundle options, boolean serialized,
+            String[] requiredPermissions, int appOp, Bundle options, boolean serialized,
             boolean sticky, int userId) throws RemoteException
     {
         Parcel data = Parcel.obtain();
@@ -3020,7 +3020,7 @@ class ActivityManagerProxy implements IActivityManager
         data.writeInt(resultCode);
         data.writeString(resultData);
         data.writeBundle(map);
-        data.writeString(requiredPermission);
+        data.writeStringArray(requiredPermissions);
         data.writeInt(appOp);
         data.writeBundle(options);
         data.writeInt(serialized ? 1 : 0);
diff --git a/core/java/android/app/ContextImpl.java b/core/java/android/app/ContextImpl.java
index 75dd35c5243f..c07140c176c7 100644
--- a/core/java/android/app/ContextImpl.java
+++ b/core/java/android/app/ContextImpl.java
@@ -180,7 +180,7 @@ class ContextImpl extends Context {
     @GuardedBy("mSync")
     private File[] mExternalMediaDirs;
 
-    private static final String[] EMPTY_FILE_LIST = {};
+    private static final String[] EMPTY_STRING_ARRAY = {};
 
     // The system service cache for the system services that are cached per-ContextImpl.
     final Object[] mServiceCache = SystemServiceRegistry.createServiceCache();
@@ -552,7 +552,7 @@ class ContextImpl extends Context {
     @Override
     public String[] fileList() {
         final String[] list = getFilesDir().list();
-        return (list != null) ? list : EMPTY_FILE_LIST;
+        return (list != null) ? list : EMPTY_STRING_ARRAY;
     }
 
     @Override
@@ -591,7 +591,7 @@ class ContextImpl extends Context {
     @Override
     public String[] databaseList() {
         final String[] list = getDatabasesDir().list();
-        return (list != null) ? list : EMPTY_FILE_LIST;
+        return (list != null) ? list : EMPTY_STRING_ARRAY;
     }
 
 
@@ -777,11 +777,28 @@ class ContextImpl extends Context {
     public void sendBroadcast(Intent intent, String receiverPermission) {
         warnIfCallingFromSystemProcess();
         String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
+        String[] receiverPermissions = receiverPermission == null ? null
+                : new String[] {receiverPermission};
         try {
             intent.prepareToLeaveProcess();
             ActivityManagerNative.getDefault().broadcastIntent(
                     mMainThread.getApplicationThread(), intent, resolvedType, null,
-                    Activity.RESULT_OK, null, null, receiverPermission, AppOpsManager.OP_NONE,
+                    Activity.RESULT_OK, null, null, receiverPermissions, AppOpsManager.OP_NONE,
+                    null, false, false, getUserId());
+        } catch (RemoteException e) {
+            throw new RuntimeException("Failure from system", e);
+        }
+    }
+
+    @Override
+    public void sendBroadcastMultiplePermissions(Intent intent, String[] receiverPermissions) {
+        warnIfCallingFromSystemProcess();
+        String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
+        try {
+            intent.prepareToLeaveProcess();
+            ActivityManagerNative.getDefault().broadcastIntent(
+                    mMainThread.getApplicationThread(), intent, resolvedType, null,
+                    Activity.RESULT_OK, null, null, receiverPermissions, AppOpsManager.OP_NONE,
                     null, false, false, getUserId());
         } catch (RemoteException e) {
             throw new RuntimeException("Failure from system", e);
@@ -792,11 +809,13 @@ class ContextImpl extends Context {
     public void sendBroadcast(Intent intent, String receiverPermission, Bundle options) {
         warnIfCallingFromSystemProcess();
         String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
+        String[] receiverPermissions = receiverPermission == null ? null
+                : new String[] {receiverPermission};
         try {
             intent.prepareToLeaveProcess();
             ActivityManagerNative.getDefault().broadcastIntent(
                     mMainThread.getApplicationThread(), intent, resolvedType, null,
-                    Activity.RESULT_OK, null, null, receiverPermission, AppOpsManager.OP_NONE,
+                    Activity.RESULT_OK, null, null, receiverPermissions, AppOpsManager.OP_NONE,
                     options, false, false, getUserId());
         } catch (RemoteException e) {
             throw new RuntimeException("Failure from system", e);
@@ -807,11 +826,13 @@ class ContextImpl extends Context {
     public void sendBroadcast(Intent intent, String receiverPermission, int appOp) {
         warnIfCallingFromSystemProcess();
         String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
+        String[] receiverPermissions = receiverPermission == null ? null
+                : new String[] {receiverPermission};
         try {
             intent.prepareToLeaveProcess();
             ActivityManagerNative.getDefault().broadcastIntent(
                     mMainThread.getApplicationThread(), intent, resolvedType, null,
-                    Activity.RESULT_OK, null, null, receiverPermission, appOp, null, false, false,
+                    Activity.RESULT_OK, null, null, receiverPermissions, appOp, null, false, false,
                     getUserId());
         } catch (RemoteException e) {
             throw new RuntimeException("Failure from system", e);
@@ -822,11 +843,13 @@ class ContextImpl extends Context {
     public void sendOrderedBroadcast(Intent intent, String receiverPermission) {
         warnIfCallingFromSystemProcess();
         String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
+        String[] receiverPermissions = receiverPermission == null ? null
+                : new String[] {receiverPermission};
         try {
             intent.prepareToLeaveProcess();
             ActivityManagerNative.getDefault().broadcastIntent(
                     mMainThread.getApplicationThread(), intent, resolvedType, null,
-                    Activity.RESULT_OK, null, null, receiverPermission, AppOpsManager.OP_NONE,
+                    Activity.RESULT_OK, null, null, receiverPermissions, AppOpsManager.OP_NONE,
                     null, true, false, getUserId());
         } catch (RemoteException e) {
             throw new RuntimeException("Failure from system", e);
@@ -883,11 +906,13 @@ class ContextImpl extends Context {
             }
         }
         String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
+        String[] receiverPermissions = receiverPermission == null ? null
+                : new String[] {receiverPermission};
         try {
             intent.prepareToLeaveProcess();
             ActivityManagerNative.getDefault().broadcastIntent(
                 mMainThread.getApplicationThread(), intent, resolvedType, rd,
-                initialCode, initialData, initialExtras, receiverPermission, appOp,
+                initialCode, initialData, initialExtras, receiverPermissions, appOp,
                     options, true, false, getUserId());
         } catch (RemoteException e) {
             throw new RuntimeException("Failure from system", e);
@@ -917,11 +942,13 @@ class ContextImpl extends Context {
     public void sendBroadcastAsUser(Intent intent, UserHandle user,
             String receiverPermission, int appOp) {
         String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
+        String[] receiverPermissions = receiverPermission == null ? null
+                : new String[] {receiverPermission};
         try {
             intent.prepareToLeaveProcess();
             ActivityManagerNative.getDefault().broadcastIntent(
                     mMainThread.getApplicationThread(), intent, resolvedType, null,
-                    Activity.RESULT_OK, null, null, receiverPermission, appOp, null, false, false,
+                    Activity.RESULT_OK, null, null, receiverPermissions, appOp, null, false, false,
                     user.getIdentifier());
         } catch (RemoteException e) {
             throw new RuntimeException("Failure from system", e);
@@ -959,11 +986,13 @@ class ContextImpl extends Context {
             }
         }
         String resolvedType = intent.resolveTypeIfNeeded(getContentResolver());
+        String[] receiverPermissions = receiverPermission == null ? null
+                : new String[] {receiverPermission};
         try {
             intent.prepareToLeaveProcess();
             ActivityManagerNative.getDefault().broadcastIntent(
                 mMainThread.getApplicationThread(), intent, resolvedType, rd,
-                initialCode, initialData, initialExtras, receiverPermission,
+                initialCode, initialData, initialExtras, receiverPermissions,
                     appOp, null, true, false, user.getIdentifier());
         } catch (RemoteException e) {
             throw new RuntimeException("Failure from system", e);
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index acce81c9fe5d..1d87d77957fc 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -106,7 +106,7 @@ public interface IActivityManager extends IInterface {
     public void unregisterReceiver(IIntentReceiver receiver) throws RemoteException;
     public int broadcastIntent(IApplicationThread caller, Intent intent,
             String resolvedType, IIntentReceiver resultTo, int resultCode,
-            String resultData, Bundle map, String requiredPermission,
+            String resultData, Bundle map, String[] requiredPermissions,
             int appOp, Bundle options, boolean serialized, boolean sticky, int userId) throws RemoteException;
     public void unbroadcastIntent(IApplicationThread caller, Intent intent, int userId) throws RemoteException;
     public void finishReceiver(IBinder who, int resultCode, String resultData, Bundle map,
diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index 675515b5d12c..0bfe10884906 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -1516,6 +1516,33 @@ public abstract class Context {
     public abstract void sendBroadcast(Intent intent,
             @Nullable String receiverPermission);
 
+
+    /**
+     * Broadcast the given intent to all interested BroadcastReceivers, allowing
+     * an array of required permissions to be enforced.  This call is asynchronous; it returns
+     * immediately, and you will continue executing while the receivers are run.  No results are
+     * propagated from receivers and receivers can not abort the broadcast. If you want to allow
+     * receivers to propagate results or abort the broadcast, you must send an ordered broadcast
+     * using {@link #sendOrderedBroadcast(Intent, String)}.
+     *
+     * <p>See {@link BroadcastReceiver} for more information on Intent broadcasts.
+     *
+     * @param intent The Intent to broadcast; all receivers matching this
+     *               Intent will receive the broadcast.
+     * @param receiverPermissions Array of names of permissions that a receiver must hold
+     *                            in order to receive your broadcast.
+     *                            If null or empty, no permissions are required.
+     *
+     * @see android.content.BroadcastReceiver
+     * @see #registerReceiver
+     * @see #sendBroadcast(Intent)
+     * @see #sendOrderedBroadcast(Intent, String)
+     * @see #sendOrderedBroadcast(Intent, String, BroadcastReceiver, Handler, int, String, Bundle)
+     * @hide
+     */
+    public abstract void sendBroadcastMultiplePermissions(Intent intent,
+            String[] receiverPermissions);
+
     /**
      * Broadcast the given intent to all interested BroadcastReceivers, allowing
      * an optional required permission to be enforced.  This
diff --git a/core/java/android/content/ContextWrapper.java b/core/java/android/content/ContextWrapper.java
index 4e7c832cff44..8ad3d2163fe7 100644
--- a/core/java/android/content/ContextWrapper.java
+++ b/core/java/android/content/ContextWrapper.java
@@ -402,6 +402,12 @@ public class ContextWrapper extends Context {
     }
 
     /** @hide */
+    @Override
+    public void sendBroadcastMultiplePermissions(Intent intent, String[] receiverPermissions) {
+        mBase.sendBroadcastMultiplePermissions(intent, receiverPermissions);
+    }
+
+    /** @hide */
     @SystemApi
     @Override
     public void sendBroadcast(Intent intent, String receiverPermission, Bundle options) {