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Commit c6644951 authored by Siarhei Vishniakou's avatar Siarhei Vishniakou Committed by Automerger Merge Worker
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Merge "Remove FLAG_INPUTFILTER_TRUSTED in MotionEventInjector" into sc-dev am:... 

Merge "Remove FLAG_INPUTFILTER_TRUSTED in MotionEventInjector" into sc-dev am: 5d552869 am: b637d6f1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14676739

Change-Id: Ia3010b90e45eb9f2f19e76b0b6fa3e8c237b55c5
parents 3e3e6183 b637d6f1

core/api/test-current.txt

+1 −0
Original line number Diff line number Diff line
@@ -2734,6 +2734,7 @@ package android.view { 
  public final class InputDevice implements android.os.Parcelable {

    method @RequiresPermission("android.permission.DISABLE_INPUT_DEVICE") public void disable();

    method @RequiresPermission("android.permission.DISABLE_INPUT_DEVICE") public void enable();

    field public static final int ACCESSIBILITY_DEVICE_ID = -2; // 0xfffffffe

  }



  public class KeyEvent extends android.view.InputEvent implements android.os.Parcelable {

core/java/android/view/InputDevice.java

+7 −0
Original line number Diff line number Diff line
@@ -444,6 +444,13 @@ public final class InputDevice implements Parcelable { 


    private static final int VIBRATOR_ID_ALL = -1;



    /**

     * The device id of input events generated inside accessibility service.

     * @hide

     */

    @TestApi

    public static final int ACCESSIBILITY_DEVICE_ID = -2;



    public static final @android.annotation.NonNull Parcelable.Creator<InputDevice> CREATOR =

            new Parcelable.Creator<InputDevice>() {

        public InputDevice createFromParcel(Parcel in) {

core/java/android/view/WindowManagerPolicyConstants.java

+7 −1
Original line number Diff line number Diff line
@@ -16,6 +16,9 @@ 


package android.view;



import static android.os.IInputConstants.POLICY_FLAG_INJECTED_FROM_ACCESSIBILITY;

import static android.os.IInputConstants.POLICY_FLAG_INPUTFILTER_TRUSTED;



import android.annotation.IntDef;

import android.os.PowerManager;
@@ -27,10 +30,13 @@ import java.lang.annotation.RetentionPolicy; 
 * @hide

 */

public interface WindowManagerPolicyConstants {

    // Policy flags.  These flags are also defined in frameworks/base/include/ui/Input.h.

    // Policy flags.  These flags are also defined in frameworks/base/include/ui/Input.h and

    // frameworks/native/libs/input/android/os/IInputConstants.aidl

    int FLAG_WAKE = 0x00000001;

    int FLAG_VIRTUAL = 0x00000002;



    int FLAG_INPUTFILTER_TRUSTED = POLICY_FLAG_INPUTFILTER_TRUSTED;

    int FLAG_INJECTED_FROM_ACCESSIBILITY = POLICY_FLAG_INJECTED_FROM_ACCESSIBILITY;

    int FLAG_INJECTED = 0x01000000;

    int FLAG_TRUSTED = 0x02000000;

    int FLAG_FILTERED = 0x04000000;

services/accessibility/java/com/android/server/accessibility/MotionEventInjector.java

+12 −3
Original line number Diff line number Diff line
@@ -32,9 +32,9 @@ import android.util.SparseArray; 
import android.util.SparseIntArray;

import android.view.InputDevice;

import android.view.MotionEvent;

import android.view.WindowManagerPolicyConstants;



import com.android.internal.os.SomeArgs;

import com.android.server.policy.WindowManagerPolicy;



import java.util.ArrayList;

import java.util.Arrays;
@@ -132,6 +132,12 @@ public class MotionEventInjector extends BaseEventStreamTransformation implement 
            return;

        }

        cancelAnyPendingInjectedEvents();

        // The events injected from outside of system_server are not trusted. Remove the flag to

        // prevent accessibility service from impersonating a real input device.

        policyFlags &= ~WindowManagerPolicyConstants.FLAG_INPUTFILTER_TRUSTED;

        // Indicate that the input event is injected from accessibility, to let applications

        // distinguish it from events injected by other means.

        policyFlags |= WindowManagerPolicyConstants.FLAG_INJECTED_FROM_ACCESSIBILITY;

        sendMotionEventToNext(event, rawEvent, policyFlags);

    }
@@ -166,7 +172,9 @@ public class MotionEventInjector extends BaseEventStreamTransformation implement 
            return false;

        }

        MotionEvent motionEvent = (MotionEvent) message.obj;

        sendMotionEventToNext(motionEvent, motionEvent, WindowManagerPolicy.FLAG_PASS_TO_USER);

        sendMotionEventToNext(motionEvent, motionEvent,

                WindowManagerPolicyConstants.FLAG_PASS_TO_USER

                | WindowManagerPolicyConstants.FLAG_INJECTED_FROM_ACCESSIBILITY);

        boolean isEndOfSequence = message.arg1 != 0;

        if (isEndOfSequence) {

            notifyService(mServiceInterfaceForCurrentGesture, mSequencesInProgress.get(0), true);
@@ -318,7 +326,8 @@ public class MotionEventInjector extends BaseEventStreamTransformation implement 
            MotionEvent cancelEvent =

                    obtainMotionEvent(now, now, MotionEvent.ACTION_CANCEL, getLastTouchPoints(), 1);

            sendMotionEventToNext(cancelEvent, cancelEvent,

                    WindowManagerPolicy.FLAG_PASS_TO_USER);

                    WindowManagerPolicyConstants.FLAG_PASS_TO_USER

                    | WindowManagerPolicyConstants.FLAG_INJECTED_FROM_ACCESSIBILITY);

            mOpenGesturesInProgress.put(source, false);

        }

    }

services/tests/servicestests/src/com/android/server/accessibility/MotionEventInjectorTest.java

+14 −9
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ package com.android.server.accessibility; 
import static android.view.MotionEvent.ACTION_DOWN;

import static android.view.MotionEvent.ACTION_HOVER_MOVE;

import static android.view.MotionEvent.ACTION_UP;

import static android.view.WindowManagerPolicyConstants.FLAG_INJECTED_FROM_ACCESSIBILITY;

import static android.view.WindowManagerPolicyConstants.FLAG_PASS_TO_USER;



import static org.hamcrest.CoreMatchers.allOf;
@@ -188,9 +189,9 @@ public class MotionEventInjectorTest { 
        verifyNoMoreInteractions(next);

        mMessageCapturingHandler.sendOneMessage(); // Send a motion event



        verify(next).onMotionEvent(mCaptor1.capture(), mCaptor2.capture(), eq(FLAG_PASS_TO_USER));

        verify(next).onMotionEvent(argThat(mIsLineStart), argThat(mIsLineStart),

                eq(FLAG_PASS_TO_USER));

        final int expectedFlags = FLAG_PASS_TO_USER | FLAG_INJECTED_FROM_ACCESSIBILITY;

        verify(next).onMotionEvent(mCaptor1.capture(), mCaptor2.capture(), eq(expectedFlags));

        verify(next).onMotionEvent(argThat(mIsLineStart), argThat(mIsLineStart), eq(expectedFlags));

        verifyNoMoreInteractions(next);

        reset(next);
@@ -198,7 +199,7 @@ public class MotionEventInjectorTest { 


        mMessageCapturingHandler.sendOneMessage(); // Send a motion event

        verify(next).onMotionEvent(argThat(allOf(mIsLineMiddle, hasRightDownTime)),

                argThat(allOf(mIsLineMiddle, hasRightDownTime)), eq(FLAG_PASS_TO_USER));

                argThat(allOf(mIsLineMiddle, hasRightDownTime)), eq(expectedFlags));

        verifyNoMoreInteractions(next);

        reset(next);
@@ -206,7 +207,7 @@ public class MotionEventInjectorTest { 


        mMessageCapturingHandler.sendOneMessage(); // Send a motion event

        verify(next).onMotionEvent(argThat(allOf(mIsLineEnd, hasRightDownTime)),

                argThat(allOf(mIsLineEnd, hasRightDownTime)), eq(FLAG_PASS_TO_USER));

                argThat(allOf(mIsLineEnd, hasRightDownTime)), eq(expectedFlags));

        verifyNoMoreInteractions(next);



        verify(mServiceInterface).onPerformGestureResult(LINE_SEQUENCE, true);
@@ -244,7 +245,8 @@ public class MotionEventInjectorTest { 
        mMessageCapturingHandler.sendAllMessages(); // Send all motion events

        reset(next);

        mMotionEventInjector.onMotionEvent(mClickDownEvent, mClickDownEvent, 0);

        verify(next).onMotionEvent(argThat(mIsClickDown), argThat(mIsClickDown), eq(0));

        verify(next).onMotionEvent(argThat(mIsClickDown), argThat(mIsClickDown),

                eq(FLAG_INJECTED_FROM_ACCESSIBILITY));

    }



    @Test
@@ -260,7 +262,8 @@ public class MotionEventInjectorTest { 


        mMessageCapturingHandler.sendOneMessage(); // Send a motion event

        verify(next).onMotionEvent(

                argThat(mIsLineStart), argThat(mIsLineStart), eq(FLAG_PASS_TO_USER));

                argThat(mIsLineStart), argThat(mIsLineStart),

                eq(FLAG_PASS_TO_USER | FLAG_INJECTED_FROM_ACCESSIBILITY));

    }



    @Test
@@ -291,9 +294,11 @@ public class MotionEventInjectorTest { 
        reset(next);



        mMessageCapturingHandler.sendOneMessage(); // Send a motion event

        verify(next).onMotionEvent(mCaptor1.capture(), mCaptor2.capture(), eq(FLAG_PASS_TO_USER));

        verify(next).onMotionEvent(mCaptor1.capture(), mCaptor2.capture(),

                eq(FLAG_PASS_TO_USER | FLAG_INJECTED_FROM_ACCESSIBILITY));

        verify(next).onMotionEvent(

                argThat(mIsLineStart), argThat(mIsLineStart), eq(FLAG_PASS_TO_USER));

                argThat(mIsLineStart), argThat(mIsLineStart),

                eq(FLAG_PASS_TO_USER | FLAG_INJECTED_FROM_ACCESSIBILITY));

    }



    @Test