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/*
* Copyright (C) 2019 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 com.android.providers.downloads;
import static android.provider.BaseColumns._ID;
import static android.provider.Downloads.Impl.ALL_DOWNLOADS_CONTENT_URI;
import static android.provider.Downloads.Impl.COLUMN_DESTINATION;
import static android.provider.Downloads.Impl.COLUMN_IS_VISIBLE_IN_DOWNLOADS_UI;
import static android.provider.Downloads.Impl.COLUMN_MEDIASTORE_URI;
import static android.provider.Downloads.Impl.COLUMN_MEDIA_SCANNED;
import static android.provider.Downloads.Impl.DESTINATION_EXTERNAL;
import static android.provider.Downloads.Impl.DESTINATION_FILE_URI;
import static android.provider.Downloads.Impl.DESTINATION_NON_DOWNLOADMANAGER_DOWNLOAD;
import static android.provider.Downloads.Impl.MEDIA_SCANNED;
import static android.provider.Downloads.Impl._DATA;
import static com.android.providers.downloads.Constants.MEDIA_SCAN_TRIGGER_JOB_ID;
import android.app.job.JobInfo;
import android.app.job.JobParameters;
import android.app.job.JobScheduler;
import android.app.job.JobService;
import android.content.ComponentName;
import android.content.ContentProviderClient;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.RemoteException;
import android.provider.Downloads;
import android.provider.MediaStore;
import java.io.File;
/**
* Clean-up job to force mediascan on downloads which should have been but didn't get mediascanned.
*/
public class MediaScanTriggerJob extends JobService {
private volatile boolean mJobStopped;
@Override
public boolean onStartJob(JobParameters parameters) {
Helpers.getAsyncHandler().post(() -> {
final String selection = _DATA + " IS NOT NULL"
+ " AND (" + COLUMN_IS_VISIBLE_IN_DOWNLOADS_UI + "=1"
+ " OR " + COLUMN_MEDIA_SCANNED + "=" + MEDIA_SCANNED + ")"
+ " AND (" + COLUMN_DESTINATION + "=" + DESTINATION_EXTERNAL
+ " OR " + COLUMN_DESTINATION + "=" + DESTINATION_FILE_URI
+ " OR " + COLUMN_DESTINATION + "=" + DESTINATION_NON_DOWNLOADMANAGER_DOWNLOAD
+ ")";
try (ContentProviderClient downloadProviderClient
= getContentResolver().acquireContentProviderClient(Downloads.Impl.AUTHORITY);
ContentProviderClient mediaProviderClient
= getContentResolver().acquireContentProviderClient(MediaStore.AUTHORITY)) {
try (Cursor cursor = downloadProviderClient.query(ALL_DOWNLOADS_CONTENT_URI,
new String[] {_ID, _DATA, COLUMN_MEDIASTORE_URI},
selection, null, null)) {
while (cursor.moveToNext()) {
if (mJobStopped) {
return;
}
// This indicates that this entry has been handled already (perhaps when
// this job ran earlier and got preempted), so skip.
if (cursor.getString(2) != null) {
continue;
}
final long id = cursor.getLong(0);
final String filePath = cursor.getString(1);
final ContentValues mediaValues = new ContentValues();
mediaValues.put(MediaStore.Files.FileColumns.SIZE, 0);
mediaProviderClient.update(MediaStore.Files.getContentUriForPath(filePath),
mediaValues,
MediaStore.Files.FileColumns.DATA + "=?",
new String[] { filePath });
final Uri mediaStoreUri = Helpers.triggerMediaScan(mediaProviderClient,
new File(filePath));
if (mediaStoreUri != null) {
final ContentValues downloadValues = new ContentValues();
downloadValues.put(COLUMN_MEDIASTORE_URI, mediaStoreUri.toString());
downloadProviderClient.update(ALL_DOWNLOADS_CONTENT_URI,
downloadValues, _ID + "=" + id, null);
}
}
} catch (RemoteException e) {
// Should not happen
}
}
jobFinished(parameters, false);
});
return true;
}
@Override
public boolean onStopJob(JobParameters parameters) {
mJobStopped = true;
return true;
}
public static void schedule(Context context) {
final JobScheduler scheduler = context.getSystemService(JobScheduler.class);
final JobInfo job = new JobInfo.Builder(MEDIA_SCAN_TRIGGER_JOB_ID,
new ComponentName(context, MediaScanTriggerJob.class))
.setRequiresCharging(true)
.setRequiresDeviceIdle(true)
.build();
scheduler.schedule(job);
}
}
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