Add system API to watch for permission changes

Change-Id: I1ce450a59fb326c14848f46732d877dea33f33c7

3 files changed, 67 insertions, 0 deletions

diff --git a/core/java/android/content/pm/IOnPermissionsChangeListener.aidl b/core/java/android/content/pm/IOnPermissionsChangeListener.aidl
new file mode 100644
index 0000000..7791b50
--- /dev/null
+++ b/core/java/android/content/pm/IOnPermissionsChangeListener.aidl
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.content.pm;
+
+/**
+ * Listener for changes in the permissions for installed packages.
+ * {@hide}
+ */
+oneway interface IOnPermissionsChangeListener {
+    void onPermissionsChanged(int uid);
+}
diff --git a/core/java/android/content/pm/IPackageManager.aidl b/core/java/android/content/pm/IPackageManager.aidl
index 00b8c71..0c07bc3 100644
--- a/core/java/android/content/pm/IPackageManager.aidl
+++ b/core/java/android/content/pm/IPackageManager.aidl
@@ -31,6 +31,7 @@ import android.content.pm.IPackageDeleteObserver2;
 import android.content.pm.IPackageDataObserver;
 import android.content.pm.IPackageMoveObserver;
 import android.content.pm.IPackageStatsObserver;
+import android.content.pm.IOnPermissionsChangeListener;
 import android.content.pm.IntentFilterVerificationInfo;
 import android.content.pm.InstrumentationInfo;
 import android.content.pm.KeySet;
@@ -490,4 +491,7 @@ interface IPackageManager {
     KeySet getSigningKeySet(String packageName);
     boolean isPackageSignedByKeySet(String packageName, in KeySet ks);
     boolean isPackageSignedByKeySetExactly(String packageName, in KeySet ks);
+
+    void addOnPermissionsChangeListener(in IOnPermissionsChangeListener listener);
+    void removeOnPermissionsChangeListener(in IOnPermissionsChangeListener listener);
 }
diff --git a/core/java/android/content/pm/PackageManager.java b/core/java/android/content/pm/PackageManager.java
index c016ac3..c816971 100644
--- a/core/java/android/content/pm/PackageManager.java
+++ b/core/java/android/content/pm/PackageManager.java
@@ -16,11 +16,13 @@
 
 package android.content.pm;
 
+import android.Manifest;
 import android.annotation.CheckResult;
 import android.annotation.DrawableRes;
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.RequiresPermission;
 import android.annotation.SdkConstant;
 import android.annotation.SdkConstant.SdkConstantType;
 import android.annotation.StringRes;
@@ -78,6 +80,21 @@ public abstract class PackageManager {
     }
 
     /**
+     * Listener for changes in permissions granted to a UID.
+     *
+     * @hide
+     */
+    @SystemApi
+    public interface OnPermissionsChangedListener {
+
+        /**
+         * Called when the permissions for a UID change.
+         * @param uid The UID with a change.
+         */
+        public void onPermissionsChanged(int uid);
+    }
+
+    /**
      * {@link PackageInfo} flag: return information about
      * activities in the package in {@link PackageInfo#activities}.
      */
@@ -4292,6 +4309,27 @@ public abstract class PackageManager {
     public abstract boolean isSafeMode();
 
     /**
+     * Adds a listener for permission changes for installed packages.
+     *
+     * @param listener The listener to add.
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(Manifest.permission.OBSERVE_GRANT_REVOKE_PERMISSIONS)
+    public abstract void addOnPermissionsChangeListener(OnPermissionsChangedListener listener);
+
+    /**
+     * Remvoes a listener for permission changes for installed packages.
+     *
+     * @param listener The listener to remove.
+     *
+     * @hide
+     */
+    @SystemApi
+    public abstract void removeOnPermissionsChangeListener(OnPermissionsChangedListener listener);
+
+    /**
      * Return the {@link KeySet} associated with the String alias for this
      * application.
      *