Merge "Revert "Prevent exfiltration of system files via avatar picker."" into tm-dev am: 95e397a8b8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19436694

Change-Id: Id0c46913c70785ecbf90b9f4d6c4a4e3b1270298
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

2 files changed, 60 insertions, 96 deletions

diff --git a/packages/SettingsLib/src/com/android/settingslib/users/AvatarPhotoController.java b/packages/SettingsLib/src/com/android/settingslib/users/AvatarPhotoController.java
index 63a9f0c5c7f4..adfa39e3df80 100644
--- a/packages/SettingsLib/src/com/android/settingslib/users/AvatarPhotoController.java
+++ b/packages/SettingsLib/src/com/android/settingslib/users/AvatarPhotoController.java
@@ -21,8 +21,6 @@ import android.content.ClipData;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
-import android.content.pm.ActivityInfo;
-import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
@@ -59,9 +57,9 @@ class AvatarPhotoController {
 
         void startActivityForResult(Intent intent, int resultCode);
 
-        boolean startSystemActivityForResult(Intent intent, int resultCode);
-
         int getPhotoSize();
+
+        boolean canCropPhoto();
     }
 
     interface ContextInjector {
@@ -84,7 +82,6 @@ class AvatarPhotoController {
     private static final long DELAY_BEFORE_CROP_MILLIS = 150;
 
     private static final String IMAGES_DIR = "multi_user";
-    private static final String PRE_CROP_PICTURE_FILE_NAME = "PreCropEditUserPhoto.jpg";
     private static final String CROP_PICTURE_FILE_NAME = "CropEditUserPhoto.jpg";
     private static final String TAKE_PICTURE_FILE_NAME = "TakeEditUserPhoto.jpg";
 
@@ -94,7 +91,6 @@ class AvatarPhotoController {
     private final ContextInjector mContextInjector;
 
     private final File mImagesDir;
-    private final Uri mPreCropPictureUri;
     private final Uri mCropPictureUri;
     private final Uri mTakePictureUri;
 
@@ -104,8 +100,6 @@ class AvatarPhotoController {
 
         mImagesDir = new File(mContextInjector.getCacheDir(), IMAGES_DIR);
         mImagesDir.mkdir();
-        mPreCropPictureUri = mContextInjector
-                .createTempImageUri(mImagesDir, PRE_CROP_PICTURE_FILE_NAME, !waiting);
         mCropPictureUri =
                 mContextInjector.createTempImageUri(mImagesDir, CROP_PICTURE_FILE_NAME, !waiting);
         mTakePictureUri =
@@ -137,7 +131,7 @@ class AvatarPhotoController {
                 return true;
             case REQUEST_CODE_TAKE_PHOTO:
                 if (mTakePictureUri.equals(pictureUri)) {
-                    cropPhoto(pictureUri);
+                    cropPhoto();
                 } else {
                     copyAndCropPhoto(pictureUri, false);
                 }
@@ -166,7 +160,7 @@ class AvatarPhotoController {
             ThreadUtils.postOnBackgroundThread(() -> {
                 final ContentResolver cr = mContextInjector.getContentResolver();
                 try (InputStream in = cr.openInputStream(pictureUri);
-                        OutputStream out = cr.openOutputStream(mPreCropPictureUri)) {
+                     OutputStream out = cr.openOutputStream(mTakePictureUri)) {
                     Streams.copy(in, out);
                 } catch (IOException e) {
                     Log.w(TAG, "Failed to copy photo", e);
@@ -174,7 +168,7 @@ class AvatarPhotoController {
                 }
                 Runnable cropRunnable = () -> {
                     if (!mAvatarUi.isFinishing()) {
-                        cropPhoto(mPreCropPictureUri);
+                        cropPhoto();
                     }
                 };
                 if (delayBeforeCrop) {
@@ -189,21 +183,22 @@ class AvatarPhotoController {
         }
     }
 
-    private void cropPhoto(final Uri pictureUri) {
-        // TODO: Use a public intent, when there is one.
-        Intent intent = new Intent("com.android.camera.action.CROP");
-        intent.setDataAndType(pictureUri, "image/*");
-        appendOutputExtra(intent, mCropPictureUri);
-        appendCropExtras(intent);
-        try {
-            StrictMode.disableDeathOnFileUriExposure();
-            if (mAvatarUi.startSystemActivityForResult(intent, REQUEST_CODE_CROP_PHOTO)) {
-                return;
+    private void cropPhoto() {
+        if (mAvatarUi.canCropPhoto()) {
+            // TODO: Use a public intent, when there is one.
+            Intent intent = new Intent("com.android.camera.action.CROP");
+            intent.setDataAndType(mTakePictureUri, "image/*");
+            appendOutputExtra(intent, mCropPictureUri);
+            appendCropExtras(intent);
+            try {
+                StrictMode.disableDeathOnFileUriExposure();
+                mAvatarUi.startActivityForResult(intent, REQUEST_CODE_CROP_PHOTO);
+            } finally {
+                StrictMode.enableDeathOnFileUriExposure();
             }
-        } finally {
-            StrictMode.enableDeathOnFileUriExposure();
+        } else {
+            onPhotoNotCropped(mTakePictureUri);
         }
-        onPhotoNotCropped(pictureUri);
     }
 
     private void appendOutputExtra(Intent intent, Uri pictureUri) {
@@ -325,23 +320,15 @@ class AvatarPhotoController {
         }
 
         @Override
-        public boolean startSystemActivityForResult(Intent intent, int code) {
-            ActivityInfo info = intent.resolveActivityInfo(mActivity.getPackageManager(),
-                    PackageManager.MATCH_SYSTEM_ONLY);
-            if (info == null) {
-                Log.w(TAG, "No system package activity could be found for code " + code);
-                return false;
-            }
-            intent.setPackage(info.packageName);
-            mActivity.startActivityForResult(intent, code);
-            return true;
-        }
-
-        @Override
         public int getPhotoSize() {
             return mActivity.getResources()
                     .getDimensionPixelSize(com.android.internal.R.dimen.user_icon_size);
         }
+
+        @Override
+        public boolean canCropPhoto() {
+            return PhotoCapabilityUtils.canCropPhoto(mActivity);
+        }
     }
 
     static class ContextInjectorImpl implements ContextInjector {
diff --git a/packages/SettingsLib/tests/integ/src/com/android/settingslib/users/AvatarPhotoControllerTest.java b/packages/SettingsLib/tests/integ/src/com/android/settingslib/users/AvatarPhotoControllerTest.java
index d988111c29d5..3dc2fabe051a 100644
--- a/packages/SettingsLib/tests/integ/src/com/android/settingslib/users/AvatarPhotoControllerTest.java
+++ b/packages/SettingsLib/tests/integ/src/com/android/settingslib/users/AvatarPhotoControllerTest.java
@@ -34,7 +34,6 @@ import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
 import android.net.Uri;
 import android.provider.MediaStore;
 
@@ -52,7 +51,6 @@ import org.mockito.MockitoAnnotations;
 import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
-import java.io.InputStream;
 import java.io.OutputStream;
 
 @RunWith(AndroidJUnit4.class)
@@ -75,7 +73,6 @@ public class AvatarPhotoControllerTest {
     public void setUp() {
         MockitoAnnotations.initMocks(this);
         when(mMockAvatarUi.getPhotoSize()).thenReturn(PHOTO_SIZE);
-        when(mMockAvatarUi.startSystemActivityForResult(any(), anyInt())).thenReturn(true);
 
         mImagesDir = new File(
                 InstrumentationRegistry.getTargetContext().getCacheDir(), "multi_user");
@@ -113,7 +110,9 @@ public class AvatarPhotoControllerTest {
     }
 
     @Test
-    public void takePhotoIsFollowedByCrop() throws IOException {
+    public void takePhotoIsFollowedByCropWhenSupported() throws IOException {
+        when(mMockAvatarUi.canCropPhoto()).thenReturn(true);
+
         new File(mImagesDir, "file.txt").createNewFile();
 
         Intent intent = new Intent();
@@ -122,12 +121,14 @@ public class AvatarPhotoControllerTest {
         mController.onActivityResult(
                 REQUEST_CODE_TAKE_PHOTO, Activity.RESULT_OK, intent);
 
-        verifyStartSystemActivityForResult(
+        verifyStartActivityForResult(
                 "com.android.camera.action.CROP", REQUEST_CODE_CROP_PHOTO);
     }
 
     @Test
     public void takePhotoIsNotFollowedByCropWhenResultCodeNotOk() throws IOException {
+        when(mMockAvatarUi.canCropPhoto()).thenReturn(true);
+
         new File(mImagesDir, "file.txt").createNewFile();
 
         Intent intent = new Intent();
@@ -137,11 +138,12 @@ public class AvatarPhotoControllerTest {
                 REQUEST_CODE_TAKE_PHOTO, Activity.RESULT_CANCELED, intent);
 
         verify(mMockAvatarUi, never()).startActivityForResult(any(), anyInt());
-        verify(mMockAvatarUi, never()).startSystemActivityForResult(any(), anyInt());
     }
 
     @Test
     public void takePhotoIsFollowedByCropWhenTakePhotoUriReturned() throws IOException {
+        when(mMockAvatarUi.canCropPhoto()).thenReturn(true);
+
         new File(mImagesDir, "TakeEditUserPhoto.jpg").createNewFile();
 
         Intent intent = new Intent();
@@ -149,12 +151,14 @@ public class AvatarPhotoControllerTest {
         mController.onActivityResult(
                 REQUEST_CODE_TAKE_PHOTO, Activity.RESULT_OK, intent);
 
-        verifyStartSystemActivityForResult(
+        verifyStartActivityForResult(
                 "com.android.camera.action.CROP", REQUEST_CODE_CROP_PHOTO);
     }
 
     @Test
     public void choosePhotoIsFollowedByCrop() throws IOException {
+        when(mMockAvatarUi.canCropPhoto()).thenReturn(true);
+
         new File(mImagesDir, "file.txt").createNewFile();
 
         Intent intent = new Intent();
@@ -163,12 +167,14 @@ public class AvatarPhotoControllerTest {
         mController.onActivityResult(
                 REQUEST_CODE_CHOOSE_PHOTO, Activity.RESULT_OK, intent);
 
-        verifyStartSystemActivityForResult(
+        verifyStartActivityForResult(
                 "com.android.camera.action.CROP", REQUEST_CODE_CROP_PHOTO);
     }
 
     @Test
     public void choosePhotoIsNotFollowedByCropWhenResultCodeNotOk() throws IOException {
+        when(mMockAvatarUi.canCropPhoto()).thenReturn(true);
+
         new File(mImagesDir, "file.txt").createNewFile();
 
         Intent intent = new Intent();
@@ -178,11 +184,12 @@ public class AvatarPhotoControllerTest {
                 REQUEST_CODE_CHOOSE_PHOTO, Activity.RESULT_CANCELED, intent);
 
         verify(mMockAvatarUi, never()).startActivityForResult(any(), anyInt());
-        verify(mMockAvatarUi, never()).startSystemActivityForResult(any(), anyInt());
     }
 
     @Test
     public void choosePhotoIsFollowedByCropWhenTakePhotoUriReturned() throws IOException {
+        when(mMockAvatarUi.canCropPhoto()).thenReturn(true);
+
         new File(mImagesDir, "TakeEditUserPhoto.jpg").createNewFile();
 
         Intent intent = new Intent();
@@ -190,11 +197,28 @@ public class AvatarPhotoControllerTest {
         mController.onActivityResult(
                 REQUEST_CODE_CHOOSE_PHOTO, Activity.RESULT_OK, intent);
 
-        verifyStartSystemActivityForResult(
+        verifyStartActivityForResult(
                 "com.android.camera.action.CROP", REQUEST_CODE_CROP_PHOTO);
     }
 
     @Test
+    public void choosePhotoIsNotFollowedByCropIntentWhenCropNotSupported() throws IOException {
+        when(mMockAvatarUi.canCropPhoto()).thenReturn(false);
+
+        File file = new File(mImagesDir, "file.txt");
+        saveBitmapToFile(file);
+
+        Intent intent = new Intent();
+        intent.setData(Uri.parse(
+                "content://com.android.settingslib.test/my_cache/multi_user/file.txt"));
+        mController.onActivityResult(
+                REQUEST_CODE_CHOOSE_PHOTO, Activity.RESULT_OK, intent);
+
+        verify(mMockAvatarUi, never()).startActivityForResult(any(), anyInt());
+        verify(mMockAvatarUi, timeout(TIMEOUT_MILLIS)).returnUriResult(mCropPhotoUri);
+    }
+
+    @Test
     public void cropPhotoResultIsReturnedIfResultOkAndContent() {
         Intent intent = new Intent();
         intent.setData(mCropPhotoUri);
@@ -218,58 +242,11 @@ public class AvatarPhotoControllerTest {
         verify(mMockAvatarUi, timeout(TIMEOUT_MILLIS).times(0)).returnUriResult(mCropPhotoUri);
     }
 
-    @Test
-    public void cropDoesNotUseTakePhotoUri() throws IOException {
-        new File(mImagesDir, "file.txt").createNewFile();
-
-        Intent intent = new Intent();
-        intent.setData(Uri.parse(
-                "content://com.android.settingslib.test/my_cache/multi_user/file.txt"));
-        mController.onActivityResult(
-                REQUEST_CODE_TAKE_PHOTO, Activity.RESULT_OK, intent);
-
-        Intent startIntent = verifyStartSystemActivityForResult(
-                "com.android.camera.action.CROP", REQUEST_CODE_CROP_PHOTO);
-        assertThat(startIntent.getData()).isNotEqualTo(mTakePhotoUri);
-    }
-
-    @Test
-    public void internalCropUsedIfNoSystemCropperFound() throws IOException {
-        when(mMockAvatarUi.startSystemActivityForResult(any(), anyInt())).thenReturn(false);
-
-        File file = new File(mImagesDir, "file.txt");
-        saveBitmapToFile(file);
-
-        Intent intent = new Intent();
-        intent.setData(Uri.parse(
-                "content://com.android.settingslib.test/my_cache/multi_user/file.txt"));
-        mController.onActivityResult(
-                REQUEST_CODE_TAKE_PHOTO, Activity.RESULT_OK, intent);
-
-        verify(mMockAvatarUi, timeout(TIMEOUT_MILLIS)).returnUriResult(mCropPhotoUri);
-
-        InputStream imageStream = mContext.getContentResolver().openInputStream(mCropPhotoUri);
-        Bitmap bitmap = BitmapFactory.decodeStream(imageStream);
-        assertThat(bitmap.getWidth()).isEqualTo(PHOTO_SIZE);
-        assertThat(bitmap.getHeight()).isEqualTo(PHOTO_SIZE);
-    }
-
-    private Intent verifyStartActivityForResult(String action, int resultCode) {
+    private void verifyStartActivityForResult(String action, int resultCode) {
         ArgumentCaptor<Intent> captor = ArgumentCaptor.forClass(Intent.class);
         verify(mMockAvatarUi, timeout(TIMEOUT_MILLIS))
                 .startActivityForResult(captor.capture(), eq(resultCode));
-        Intent intent = captor.getValue();
-        assertThat(intent.getAction()).isEqualTo(action);
-        return intent;
-    }
-
-    private Intent verifyStartSystemActivityForResult(String action, int resultCode) {
-        ArgumentCaptor<Intent> captor = ArgumentCaptor.forClass(Intent.class);
-        verify(mMockAvatarUi, timeout(TIMEOUT_MILLIS))
-                .startSystemActivityForResult(captor.capture(), eq(resultCode));
-        Intent intent = captor.getValue();
-        assertThat(intent.getAction()).isEqualTo(action);
-        return intent;
+        assertThat(captor.getValue().getAction()).isEqualTo(action);
     }
 
     private void saveBitmapToFile(File file) throws IOException {