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Commit dea03705 authored by Kun Liang's avatar Kun Liang Committed by Shashank Mittal
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AppOps: Add Ops check for audio recording by AudioRecord API 

Confirm user permission before audio recording by AudioRecord API

Change-Id: Ib534a2872d0743a8124b403a2f20465ceb467f64
parent 7cce2a9f

media/java/android/media/AudioRecord.java

+27 −0
Original line number Diff line number Diff line
@@ -22,6 +22,10 @@ package android.media; 
import java.lang.ref.WeakReference;

import java.nio.ByteBuffer;



import android.app.ActivityThread;

import android.app.AppOpsManager;

import android.content.Context;

import android.os.Binder;

import android.os.Handler;

import android.os.Looper;

import android.os.Message;
@@ -522,6 +526,21 @@ public class AudioRecord 
        return mSessionId;

    }



    //--------------------------------------------------------

    // Check user permission

    //--------------------------------------------------------

    private boolean checkPermission() {

        AppOpsManager appOps = (AppOpsManager) ActivityThread.currentApplication().

            getSystemService(Context.APP_OPS_SERVICE);

        int callingUid = Binder.getCallingUid();

        String callingPackage= ActivityThread.currentPackageName();

        if (appOps.noteOp(AppOpsManager.OP_RECORD_AUDIO, callingUid, callingPackage) ==

            AppOpsManager.MODE_ALLOWED)

            return true;

        else

            return false;

    }



    //---------------------------------------------------------

    // Transport control methods

    //--------------------
@@ -536,6 +555,10 @@ public class AudioRecord 
                    + "uninitialized AudioRecord.");

        }



        // check user permission

        if (!checkPermission())

            return;



        // start recording

        synchronized(mRecordingStateLock) {

            if (native_start(MediaSyncEvent.SYNC_EVENT_NONE, 0) == SUCCESS) {
@@ -558,6 +581,10 @@ public class AudioRecord 
                    + "uninitialized AudioRecord.");

        }



        // check user permission

        if (!checkPermission())

            return;



        // start recording

        synchronized(mRecordingStateLock) {

            if (native_start(syncEvent.getType(), syncEvent.getAudioSessionId()) == SUCCESS) {