Rebase master

Signed-off-by: alperozturk <alper_ozturk@proton.me>

app/src/main/java/com/nextcloud/client/files/downloader/DownloadWorker.kt

@@ -0,0 +1,39 @@
+/*
+ * Nextcloud Android client application
+ *
+ * @author Alper Ozturk
+ * Copyright (C) 2023 Alper Ozturk
+ * Copyright (C) 2023 Nextcloud GmbH
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.nextcloud.client.files.downloader
+
+import android.content.Context
+import android.content.Intent
+import androidx.work.Worker
+import androidx.work.WorkerParameters
+import com.owncloud.android.files.services.FileDownloader
+
+class DownloadWorker(
+    private val context: Context,
+    params: WorkerParameters,
+    private val intent: Intent,
+    private val fileDownloader: FileDownloader,
+) : Worker(context, params) {
+    override fun doWork(): Result {
+        TODO("Not yet implemented")
+    }
+}

app/src/main/java/com/owncloud/android/files/services/FileDownloader.java

@@ -0,0 +1,702 @@
+/*
+ *   ownCloud Android client application
+ *
+ *   Copyright (C) 2012 Bartek Przybylski
+ *   Copyright (C) 2012-2016 ownCloud Inc.
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License version 2,
+ *   as published by the Free Software Foundation.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+package com.owncloud.android.files.services;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.OnAccountsUpdateListener;
+import android.app.Activity;
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.app.Service;
+import android.content.Intent;
+import android.graphics.BitmapFactory;
+import android.os.Binder;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.IBinder;
+import android.os.Looper;
+import android.os.Message;
+import android.os.Process;
+import android.util.Pair;
+
+import com.nextcloud.client.account.User;
+import com.nextcloud.client.account.UserAccountManager;
+import com.nextcloud.client.files.downloader.DownloadTask;
+import com.nextcloud.java.util.Optional;
+import com.nextcloud.utils.ForegroundServiceHelper;
+import com.nextcloud.utils.extensions.IntentExtensionsKt;
+import com.owncloud.android.R;
+import com.owncloud.android.authentication.AuthenticatorActivity;
+import com.owncloud.android.datamodel.FileDataStorageManager;
+import com.owncloud.android.datamodel.ForegroundServiceType;
+import com.owncloud.android.datamodel.OCFile;
+import com.owncloud.android.datamodel.UploadsStorageManager;
+import com.owncloud.android.lib.common.OwnCloudAccount;
+import com.owncloud.android.lib.common.OwnCloudClient;
+import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
+import com.owncloud.android.lib.common.network.OnDatatransferProgressListener;
+import com.owncloud.android.lib.common.operations.RemoteOperationResult;
+import com.owncloud.android.lib.common.operations.RemoteOperationResult.ResultCode;
+import com.owncloud.android.lib.common.utils.Log_OC;
+import com.owncloud.android.lib.resources.files.FileUtils;
+import com.owncloud.android.operations.DownloadFileOperation;
+import com.owncloud.android.operations.DownloadType;
+import com.owncloud.android.providers.DocumentsStorageProvider;
+import com.owncloud.android.ui.activity.ConflictsResolveActivity;
+import com.owncloud.android.ui.activity.FileActivity;
+import com.owncloud.android.ui.activity.FileDisplayActivity;
+import com.owncloud.android.ui.dialog.SendShareDialog;
+import com.owncloud.android.ui.fragment.OCFileListFragment;
+import com.owncloud.android.ui.notifications.NotificationUtils;
+import com.owncloud.android.ui.preview.PreviewImageActivity;
+import com.owncloud.android.ui.preview.PreviewImageFragment;
+import com.owncloud.android.utils.ErrorMessageAdapter;
+import com.owncloud.android.utils.MimeTypeUtil;
+import com.owncloud.android.utils.theme.ViewThemeUtils;
+
+import java.io.File;
+import java.security.SecureRandom;
+import java.util.AbstractList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Vector;
+
+import javax.inject.Inject;
+
+import androidx.core.app.NotificationCompat;
+import androidx.localbroadcastmanager.content.LocalBroadcastManager;
+import dagger.android.AndroidInjection;
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+
+import static android.content.Context.NOTIFICATION_SERVICE;
+
+public class FileDownloader implements OnDatatransferProgressListener, OnAccountsUpdateListener {
+
+    private final Activity activity;
+    private final Intent intent;
+    private final int startId;
+
+    public static final String EXTRA_USER = "USER";
+    public static final String EXTRA_FILE = "FILE";
+
+    private static final String DOWNLOAD_ADDED_MESSAGE = "DOWNLOAD_ADDED";
+    private static final String DOWNLOAD_FINISH_MESSAGE = "DOWNLOAD_FINISH";
+    public static final String EXTRA_DOWNLOAD_RESULT = "RESULT";
+    public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
+    public static final String EXTRA_LINKED_TO_PATH = "LINKED_TO";
+    public static final String ACCOUNT_NAME = "ACCOUNT_NAME";
+    public static final String DOWNLOAD_TYPE = "DOWNLOAD_TYPE";
+
+    private static final int FOREGROUND_SERVICE_ID = 412;
+
+    private static final String TAG = FileDownloader.class.getSimpleName();
+
+    private Looper mServiceLooper;
+    private ServiceHandler mServiceHandler;
+    private IBinder mBinder;
+    private OwnCloudClient mDownloadClient;
+    private Optional<User> currentUser = Optional.empty();
+    private FileDataStorageManager mStorageManager;
+
+    private IndexedForest<DownloadFileOperation> mPendingDownloads = new IndexedForest<>();
+
+    private DownloadFileOperation mCurrentDownload;
+
+    private NotificationManager mNotificationManager;
+    private NotificationCompat.Builder mNotificationBuilder;
+    private int mLastPercent;
+
+    private Notification mNotification;
+
+    private long conflictUploadId;
+
+    public boolean mStartedDownload = false;
+
+    @Inject UserAccountManager accountManager;
+    @Inject UploadsStorageManager uploadsStorageManager;
+    @Inject LocalBroadcastManager localBroadcastManager;
+    @Inject ViewThemeUtils viewThemeUtils;
+
+    public static String getDownloadAddedMessage() {
+        return FileDownloader.class.getName() + DOWNLOAD_ADDED_MESSAGE;
+    }
+
+    public static String getDownloadFinishMessage() {
+        return FileDownloader.class.getName() + DOWNLOAD_FINISH_MESSAGE;
+    }
+
+    public FileDownloader(Activity activity, Intent intent, int startId) {
+        this.activity = activity;
+        this.intent = intent;
+        this.startId = startId;
+
+        AndroidInjection.inject(activity);
+        Log_OC.d(TAG, "Creating service");
+        mNotificationManager = (NotificationManager) activity.getSystemService(NOTIFICATION_SERVICE);
+        HandlerThread thread = new HandlerThread("FileDownloaderThread", Process.THREAD_PRIORITY_BACKGROUND);
+        thread.start();
+        mServiceLooper = thread.getLooper();
+        mServiceHandler = new ServiceHandler(mServiceLooper, this);
+        mBinder = new FileDownloaderBinder();
+
+        NotificationCompat.Builder builder = NotificationUtils.newNotificationBuilder(activity, viewThemeUtils).setContentTitle(
+                activity.getResources().getString(R.string.app_name))
+            .setContentText(activity.getResources().getString(R.string.foreground_service_download))
+            .setSmallIcon(R.drawable.notification_icon)
+            .setLargeIcon(BitmapFactory.decodeResource(activity.getResources(), R.drawable.notification_icon));
+
+
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
+            builder.setChannelId(NotificationUtils.NOTIFICATION_CHANNEL_DOWNLOAD);
+        }
+
+        mNotification = builder.build();
+
+        // add AccountsUpdatedListener
+        AccountManager am = AccountManager.get(activity);
+        am.addOnAccountsUpdatedListener(this, null, false);
+    }
+
+
+    @Override
+    protected void finalize() throws Throwable {
+        Log_OC.v(TAG, "Destroying service");
+        mBinder = null;
+        mServiceHandler = null;
+        mServiceLooper.quit();
+        mServiceLooper = null;
+        mNotificationManager = null;
+
+        // remove AccountsUpdatedListener
+        AccountManager am = AccountManager.get(activity);
+        am.removeOnAccountsUpdatedListener(this);
+        super.finalize();
+    }
+
+    public void download() {
+        final User user = IntentExtensionsKt.getParcelableArgument(intent, EXTRA_USER, User.class);
+        final OCFile file = IntentExtensionsKt.getParcelableArgument(intent, EXTRA_FILE, OCFile.class);
+        final String behaviour = intent.getStringExtra(OCFileListFragment.DOWNLOAD_BEHAVIOUR);
+
+        DownloadType downloadType = DownloadType.DOWNLOAD;
+        if (intent.hasExtra(DOWNLOAD_TYPE)) {
+            downloadType = IntentExtensionsKt.getSerializableArgument(intent, DOWNLOAD_TYPE, DownloadType.class);
+        }
+        String activityName = intent.getStringExtra(SendShareDialog.ACTIVITY_NAME);
+        String packageName = intent.getStringExtra(SendShareDialog.PACKAGE_NAME);
+        conflictUploadId = intent.getLongExtra(ConflictsResolveActivity.EXTRA_CONFLICT_UPLOAD_ID, -1);
+        AbstractList<String> requestedDownloads = new Vector<String>();
+        try {
+            DownloadFileOperation newDownload = new DownloadFileOperation(user,
+                                                                          file,
+                                                                          behaviour,
+                                                                          activityName,
+                                                                          packageName,
+                                                                          activity,
+                                                                          downloadType);
+            newDownload.addDatatransferProgressListener(this);
+            newDownload.addDatatransferProgressListener((FileDownloaderBinder) mBinder);
+            Pair<String, String> putResult = mPendingDownloads.putIfAbsent(user.getAccountName(),
+                                                                           file.getRemotePath(),
+                                                                           newDownload);
+            if (putResult != null) {
+                String downloadKey = putResult.first;
+                requestedDownloads.add(downloadKey);
+                sendBroadcastNewDownload(newDownload, putResult.second);
+            }   // else, file already in the queue of downloads; don't repeat the request
+
+        } catch (IllegalArgumentException e) {
+            Log_OC.e(TAG, "Not enough information provided in intent: " + e.getMessage());
+        }
+
+        if (requestedDownloads.size() > 0) {
+            Message msg = mServiceHandler.obtainMessage();
+            msg.arg1 = startId;
+            msg.obj = requestedDownloads;
+            mServiceHandler.sendMessage(msg);
+        }
+    }
+
+    @Override
+    public void onAccountsUpdated(Account[] accounts) {
+         //review the current download and cancel it if its account doesn't exist
+        if (mCurrentDownload != null && !accountManager.exists(mCurrentDownload.getUser().toPlatformAccount())) {
+            mCurrentDownload.cancel();
+        }
+        // The rest of downloads are cancelled when they try to start
+    }
+
+
+    /**
+     * Binder to let client components to perform operations on the queue of downloads.
+     * <p/>
+     * It provides by itself the available operations.
+     */
+    public class FileDownloaderBinder extends Binder implements OnDatatransferProgressListener {
+
+        /**
+         * Map of listeners that will be reported about progress of downloads from a
+         * {@link FileDownloaderBinder}
+         * instance.
+         */
+        private Map<Long, OnDatatransferProgressListener> mBoundListeners =
+                new HashMap<Long, OnDatatransferProgressListener>();
+
+
+        /**
+         * Cancels a pending or current download of a remote file.
+         *
+         * @param account ownCloud account where the remote file is stored.
+         * @param file    A file in the queue of pending downloads
+         */
+        public void cancel(Account account, OCFile file) {
+            Pair<DownloadFileOperation, String> removeResult =
+                mPendingDownloads.remove(account.name, file.getRemotePath());
+            DownloadFileOperation download = removeResult.first;
+            if (download != null) {
+                download.cancel();
+            } else {
+                if (mCurrentDownload != null && currentUser.isPresent() &&
+                    mCurrentDownload.getRemotePath().startsWith(file.getRemotePath()) &&
+                        account.name.equals(currentUser.get().getAccountName())) {
+                    mCurrentDownload.cancel();
+                }
+            }
+        }
+
+        /**
+         * Cancels all the downloads for an account
+         */
+        public void cancel(String accountName) {
+            if (mCurrentDownload != null && mCurrentDownload.getUser().nameEquals(accountName)) {
+                mCurrentDownload.cancel();
+            }
+            // Cancel pending downloads
+            cancelPendingDownloads(accountName);
+        }
+
+        public void clearListeners() {
+            mBoundListeners.clear();
+        }
+
+
+        /**
+         * Returns True when the file described by 'file' in the ownCloud account 'account'
+         * is downloading or waiting to download.
+         *
+         * If 'file' is a directory, returns 'true' if any of its descendant files is downloading or
+         * waiting to download.
+         *
+         * @param user    user where the remote file is stored.
+         * @param file    A file that could be in the queue of downloads.
+         */
+        public boolean isDownloading(User user, OCFile file) {
+            return user != null && file != null && mPendingDownloads.contains(user.getAccountName(), file.getRemotePath());
+        }
+
+
+        /**
+         * Adds a listener interested in the progress of the download for a concrete file.
+         *
+         * @param listener Object to notify about progress of transfer.
+         * @param file     {@link OCFile} of interest for listener.
+         */
+        public void addDatatransferProgressListener(OnDatatransferProgressListener listener, OCFile file) {
+            if (file == null || listener == null) {
+                return;
+            }
+            mBoundListeners.put(file.getFileId(), listener);
+        }
+
+
+        /**
+         * Removes a listener interested in the progress of the download for a concrete file.
+         *
+         * @param listener      Object to notify about progress of transfer.
+         * @param file          {@link OCFile} of interest for listener.
+         */
+        public void removeDatatransferProgressListener(OnDatatransferProgressListener listener, OCFile file) {
+            if (file == null || listener == null) {
+                return;
+            }
+            Long fileId = file.getFileId();
+            if (mBoundListeners.get(fileId) == listener) {
+                mBoundListeners.remove(fileId);
+            }
+        }
+
+        @Override
+        public void onTransferProgress(long progressRate, long totalTransferredSoFar,
+                                       long totalToTransfer, String fileName) {
+            OnDatatransferProgressListener boundListener =
+                    mBoundListeners.get(mCurrentDownload.getFile().getFileId());
+            if (boundListener != null) {
+                boundListener.onTransferProgress(progressRate, totalTransferredSoFar,
+                                                 totalToTransfer, fileName);
+            }
+        }
+
+    }
+
+    /**
+     * Download worker. Performs the pending downloads in the order they were requested.
+
+     * Created with the Looper of a new thread, started in {@link FileUploader#onCreate()}.
+     */
+    private static class ServiceHandler extends Handler {
+        // don't make it a final class, and don't remove the static ; lint will warn about a
+        // possible memory leak
+        FileDownloader mService;
+
+        public ServiceHandler(Looper looper, FileDownloader service) {
+            super(looper);
+            if (service == null) {
+                throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
+            }
+            mService = service;
+        }
+
+        @Override
+        public void handleMessage(Message msg) {
+            @SuppressWarnings("unchecked")
+            AbstractList<String> requestedDownloads = (AbstractList<String>) msg.obj;
+            if (msg.obj != null) {
+                Iterator<String> it = requestedDownloads.iterator();
+                while (it.hasNext()) {
+                    String next = it.next();
+                    mService.downloadFile(next);
+                }
+            }
+            mService.mStartedDownload=false;
+
+            (new Handler()).postDelayed(() -> {
+                if(!mService.mStartedDownload){
+                    mService.mNotificationManager.cancel(R.string.downloader_download_in_progress_ticker);
+                }
+                Log_OC.d(TAG, "Stopping after command with id " + msg.arg1);
+                mService.mNotificationManager.cancel(FOREGROUND_SERVICE_ID);
+            }, 2000);
+        }
+    }
+
+
+    /**
+     * Core download method: requests a file to download and stores it.
+     *
+     * @param downloadKey Key to access the download to perform, contained in mPendingDownloads
+     */
+    private void downloadFile(String downloadKey) {
+
+        mStartedDownload = true;
+        mCurrentDownload = mPendingDownloads.get(downloadKey);
+
+        if (mCurrentDownload != null) {
+            // Detect if the account exists
+            if (accountManager.exists(mCurrentDownload.getUser().toPlatformAccount())) {
+                notifyDownloadStart(mCurrentDownload);
+                RemoteOperationResult downloadResult = null;
+                try {
+                    /// prepare client object to send the request to the ownCloud server
+                    Account currentDownloadAccount = mCurrentDownload.getUser().toPlatformAccount();
+                    Optional<User> currentDownloadUser = accountManager.getUser(currentDownloadAccount.name);
+                    if (!currentUser.equals(currentDownloadUser)) {
+                        currentUser = currentDownloadUser;
+                        mStorageManager = new FileDataStorageManager(currentUser.get(), activity.getContentResolver());
+                    }   // else, reuse storage manager from previous operation
+
+                    // always get client from client manager, to get fresh credentials in case
+                    // of update
+                    OwnCloudAccount ocAccount = currentDownloadUser.get().toOwnCloudAccount();
+                    mDownloadClient = OwnCloudClientManagerFactory.getDefaultSingleton().
+                            getClientFor(ocAccount, activity);
+
+
+                    /// perform the download
+                    downloadResult = mCurrentDownload.execute(mDownloadClient);
+                    if (downloadResult.isSuccess() && mCurrentDownload.getDownloadType() == DownloadType.DOWNLOAD) {
+                        saveDownloadedFile();
+                    }
+
+                } catch (Exception e) {
+                    Log_OC.e(TAG, "Error downloading", e);
+                    downloadResult = new RemoteOperationResult(e);
+
+                } finally {
+                    Pair<DownloadFileOperation, String> removeResult = mPendingDownloads.removePayload(
+                        mCurrentDownload.getUser().getAccountName(), mCurrentDownload.getRemotePath());
+
+                    if (downloadResult == null) {
+                        downloadResult = new RemoteOperationResult(new RuntimeException("Error downloading…"));
+                    }
+
+                    /// notify result
+                    notifyDownloadResult(mCurrentDownload, downloadResult);
+                    sendBroadcastDownloadFinished(mCurrentDownload, downloadResult, removeResult.second);
+                }
+            } else {
+                cancelPendingDownloads(mCurrentDownload.getUser().getAccountName());
+            }
+        }
+    }
+
+
+    /**
+     * Updates the OC File after a successful download.
+     *
+     * TODO move to DownloadFileOperation
+     *  unify with code from {@link DocumentsStorageProvider} and {@link DownloadTask}.
+     */
+    private void saveDownloadedFile() {
+        OCFile file = mStorageManager.getFileById(mCurrentDownload.getFile().getFileId());
+
+        if (file == null) {
+            // try to get file via path, needed for overwriting existing files on conflict dialog
+            file = mStorageManager.getFileByDecryptedRemotePath(mCurrentDownload.getFile().getRemotePath());
+        }
+
+        if (file == null) {
+            Log_OC.e(this, "Could not save " + mCurrentDownload.getFile().getRemotePath());
+            return;
+        }
+
+        long syncDate = System.currentTimeMillis();
+        file.setLastSyncDateForProperties(syncDate);
+        file.setLastSyncDateForData(syncDate);
+        file.setUpdateThumbnailNeeded(true);
+        file.setModificationTimestamp(mCurrentDownload.getModificationTimestamp());
+        file.setModificationTimestampAtLastSyncForData(mCurrentDownload.getModificationTimestamp());
+        file.setEtag(mCurrentDownload.getEtag());
+        file.setMimeType(mCurrentDownload.getMimeType());
+        file.setStoragePath(mCurrentDownload.getSavePath());
+        file.setFileLength(new File(mCurrentDownload.getSavePath()).length());
+        file.setRemoteId(mCurrentDownload.getFile().getRemoteId());
+        mStorageManager.saveFile(file);
+        if (MimeTypeUtil.isMedia(mCurrentDownload.getMimeType())) {
+            FileDataStorageManager.triggerMediaScan(file.getStoragePath(), file);
+        }
+        mStorageManager.saveConflict(file, null);
+    }
+
+    /**
+     * Creates a status notification to show the download progress
+     *
+     * @param download Download operation starting.
+     */
+    private void notifyDownloadStart(DownloadFileOperation download) {
+        /// create status notification with a progress bar
+        mLastPercent = 0;
+        mNotificationBuilder = NotificationUtils.newNotificationBuilder(activity, viewThemeUtils);
+        mNotificationBuilder
+            .setSmallIcon(R.drawable.notification_icon)
+            .setTicker(activity.getString(R.string.downloader_download_in_progress_ticker))
+            .setContentTitle(activity.getString(R.string.downloader_download_in_progress_ticker))
+            .setOngoing(true)
+            .setProgress(100, 0, download.getSize() < 0)
+            .setContentText(
+                String.format(activity.getString(R.string.downloader_download_in_progress_content), 0,
+                              new File(download.getSavePath()).getName()));
+
+        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
+            mNotificationBuilder.setChannelId(NotificationUtils.NOTIFICATION_CHANNEL_DOWNLOAD);
+        }
+
+        /// includes a pending intent in the notification showing the details view of the file
+        Intent showDetailsIntent = null;
+        if (PreviewImageFragment.canBePreviewed(download.getFile())) {
+            showDetailsIntent = new Intent(activity, PreviewImageActivity.class);
+        } else {
+            showDetailsIntent = new Intent(activity, FileDisplayActivity.class);
+        }
+        showDetailsIntent.putExtra(FileActivity.EXTRA_FILE, download.getFile());
+        showDetailsIntent.putExtra(FileActivity.EXTRA_USER, download.getUser());
+        showDetailsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
+
+        mNotificationBuilder.setContentIntent(PendingIntent.getActivity(activity, (int) System.currentTimeMillis(),
+                                                                        showDetailsIntent, PendingIntent.FLAG_IMMUTABLE));
+
+
+        if (mNotificationManager == null) {
+            mNotificationManager = (NotificationManager) activity.getSystemService(NOTIFICATION_SERVICE);
+        }
+        if (mNotificationManager != null) {
+            mNotificationManager.notify(R.string.downloader_download_in_progress_ticker, mNotificationBuilder.build());
+        }
+    }
+
+
+    /**
+     * Callback method to update the progress bar in the status notification.
+     */
+    @Override
+    public void onTransferProgress(long progressRate, long totalTransferredSoFar,
+                                   long totalToTransfer, String filePath) {
+        int percent = (int) (100.0 * ((double) totalTransferredSoFar) / ((double) totalToTransfer));
+        if (percent != mLastPercent) {
+            mNotificationBuilder.setProgress(100, percent, totalToTransfer < 0);
+            String fileName = filePath.substring(filePath.lastIndexOf(FileUtils.PATH_SEPARATOR) + 1);
+            String text = String.format(activity.getString(R.string.downloader_download_in_progress_content), percent, fileName);
+            mNotificationBuilder.setContentText(text);
+
+            if (mNotificationManager == null) {
+                mNotificationManager = (NotificationManager) activity.getSystemService(NOTIFICATION_SERVICE);
+            }
+
+            if (mNotificationManager != null) {
+                mNotificationManager.notify(R.string.downloader_download_in_progress_ticker,
+                        mNotificationBuilder.build());
+            }
+        }
+        mLastPercent = percent;
+    }
+
+
+    /**
+     * Updates the status notification with the result of a download operation.
+     *
+     * @param downloadResult Result of the download operation.
+     * @param download       Finished download operation
+     */
+    @SuppressFBWarnings("DMI")
+    private void notifyDownloadResult(DownloadFileOperation download,
+                                      RemoteOperationResult downloadResult) {
+        if (mNotificationManager == null) {
+            mNotificationManager = (NotificationManager) activity.getSystemService(NOTIFICATION_SERVICE);
+        }
+
+        if (!downloadResult.isCancelled()) {
+            if (downloadResult.isSuccess()) {
+                if (conflictUploadId > 0) {
+                    uploadsStorageManager.removeUpload(conflictUploadId);
+                }
+                // Dont show notification except an error has occured.
+                return;
+            }
+            int tickerId = downloadResult.isSuccess() ?
+                    R.string.downloader_download_succeeded_ticker : R.string.downloader_download_failed_ticker;
+
+            boolean needsToUpdateCredentials = ResultCode.UNAUTHORIZED == downloadResult.getCode();
+            tickerId = needsToUpdateCredentials ?
+                    R.string.downloader_download_failed_credentials_error : tickerId;
+
+            mNotificationBuilder
+                    .setTicker(activity.getString(tickerId))
+                    .setContentTitle(activity.getString(tickerId))
+                    .setAutoCancel(true)
+                    .setOngoing(false)
+                    .setProgress(0, 0, false);
+
+            if (needsToUpdateCredentials) {
+                configureUpdateCredentialsNotification(download.getUser());
+
+            } else {
+                // TODO put something smart in showDetailsIntent
+                Intent showDetailsIntent = new Intent();
+                mNotificationBuilder.setContentIntent(PendingIntent.getActivity(activity, (int) System.currentTimeMillis(),
+                                                                                showDetailsIntent, PendingIntent.FLAG_IMMUTABLE));
+            }
+
+            mNotificationBuilder.setContentText(ErrorMessageAdapter.getErrorCauseMessage(downloadResult,
+                    download, activity.getResources()));
+
+            if (mNotificationManager != null) {
+                mNotificationManager.notify((new SecureRandom()).nextInt(), mNotificationBuilder.build());
+
+                // Remove success notification
+                if (downloadResult.isSuccess()) {
+                    // Sleep 2 seconds, so show the notification before remove it
+                    NotificationUtils.cancelWithDelay(mNotificationManager,
+                                                      R.string.downloader_download_succeeded_ticker, 2000);
+                }
+            }
+        }
+    }
+
+    private void configureUpdateCredentialsNotification(User user) {
+        // let the user update credentials with one click
+        Intent updateAccountCredentials = new Intent(activity, AuthenticatorActivity.class);
+        updateAccountCredentials.putExtra(AuthenticatorActivity.EXTRA_ACCOUNT, user.toPlatformAccount());
+        updateAccountCredentials.putExtra(
+                AuthenticatorActivity.EXTRA_ACTION,
+                AuthenticatorActivity.ACTION_UPDATE_EXPIRED_TOKEN
+        );
+        updateAccountCredentials.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        updateAccountCredentials.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
+        updateAccountCredentials.addFlags(Intent.FLAG_FROM_BACKGROUND);
+        mNotificationBuilder.setContentIntent(
+            PendingIntent.getActivity(activity,
+                                      (int) System.currentTimeMillis(),
+                                      updateAccountCredentials,
+                                      PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_IMMUTABLE)
+                                             );
+    }
+
+
+    /**
+     * Sends a broadcast when a download finishes in order to the interested activities can
+     * update their view
+     *
+     * @param download               Finished download operation
+     * @param downloadResult         Result of the download operation
+     * @param unlinkedFromRemotePath Path in the downloads tree where the download was unlinked from
+     */
+    private void sendBroadcastDownloadFinished(
+            DownloadFileOperation download,
+            RemoteOperationResult downloadResult,
+            String unlinkedFromRemotePath) {
+
+        Intent end = new Intent(getDownloadFinishMessage());
+        end.putExtra(EXTRA_DOWNLOAD_RESULT, downloadResult.isSuccess());
+        end.putExtra(ACCOUNT_NAME, download.getUser().getAccountName());
+        end.putExtra(EXTRA_REMOTE_PATH, download.getRemotePath());
+        end.putExtra(OCFileListFragment.DOWNLOAD_BEHAVIOUR, download.getBehaviour());
+        end.putExtra(SendShareDialog.ACTIVITY_NAME, download.getActivityName());
+        end.putExtra(SendShareDialog.PACKAGE_NAME, download.getPackageName());
+        if (unlinkedFromRemotePath != null) {
+            end.putExtra(EXTRA_LINKED_TO_PATH, unlinkedFromRemotePath);
+        }
+        end.setPackage(activity.getPackageName());
+        localBroadcastManager.sendBroadcast(end);
+    }
+
+
+    /**
+     * Sends a broadcast when a new download is added to the queue.
+     *
+     * @param download           Added download operation
+     * @param linkedToRemotePath Path in the downloads tree where the download was linked to
+     */
+    private void sendBroadcastNewDownload(DownloadFileOperation download,
+                                          String linkedToRemotePath) {
+        Intent added = new Intent(getDownloadAddedMessage());
+        added.putExtra(ACCOUNT_NAME, download.getUser().getAccountName());
+        added.putExtra(EXTRA_REMOTE_PATH, download.getRemotePath());
+        added.putExtra(EXTRA_LINKED_TO_PATH, linkedToRemotePath);
+        added.setPackage(activity.getPackageName());
+        localBroadcastManager.sendBroadcast(added);
+    }
+
+    private void cancelPendingDownloads(String accountName) {
+        mPendingDownloads.remove(accountName);
+    }
+}