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Commit 26ea29a2 authored by Manish Singh's avatar Manish Singh Committed by Automerger Merge Worker
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Merge "Pass the media capabilities uid when opening media" into sc-dev am: 36723eae 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13454823

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I430bd2d4678549e27f21777b33b7771bbdae4337
parents a25b9589 36723eae

core/java/com/android/internal/content/FileSystemProvider.java

+20 −1
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ import android.database.MatrixCursor; 
import android.database.MatrixCursor.RowBuilder;

import android.graphics.Point;

import android.net.Uri;

import android.os.Binder;

import android.os.Bundle;

import android.os.CancellationSignal;

import android.os.FileObserver;
@@ -504,7 +505,7 @@ public abstract class FileSystemProvider extends DocumentsProvider { 


        final int pfdMode = ParcelFileDescriptor.parseMode(mode);

        if (pfdMode == ParcelFileDescriptor.MODE_READ_ONLY || visibleFile == null) {

            return ParcelFileDescriptor.open(file, pfdMode);

            return openFileForRead(file);

        } else {

            try {

                // When finished writing, kick off media scanner
@@ -519,6 +520,24 @@ public abstract class FileSystemProvider extends DocumentsProvider { 
        }

    }



    private ParcelFileDescriptor openFileForRead(final File target) throws FileNotFoundException {

        final Uri uri = MediaStore.scanFile(getContext().getContentResolver(), target);



        // Passing the calling uid via EXTRA_MEDIA_CAPABILITIES_UID, so that the decision to

        // transcode or not transcode can be made based upon the calling app's uid, and not based

        // upon the Provider's uid.

        final Bundle opts = new Bundle();

        opts.putInt(MediaStore.EXTRA_MEDIA_CAPABILITIES_UID, Binder.getCallingUid());



        final AssetFileDescriptor afd =

                getContext().getContentResolver().openTypedAssetFileDescriptor(uri, "*/*", opts);

        if (afd == null) {

            return null;

        }



        return afd.getParcelFileDescriptor();

    }



    /**

     * Test if the file matches the query arguments.

     *