src/com/owncloud/android/files/services/FileUploader.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012 Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License as published by
   7  *   the Free Software Foundation, either version 2 of the License, or
   8  *   (at your option) any later version.
   9  *
  10  *   This program is distributed in the hope that it will be useful,
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *   GNU General Public License for more details.
  14  *
  15  *   You should have received a copy of the GNU General Public License
  16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 package com.owncloud.android.files.services;
  21
  22 import java.io.File;
  23 import java.util.AbstractList;
  24 import java.util.Iterator;
  25 import java.util.Vector;
  26 import java.util.concurrent.ConcurrentHashMap;
  27 import java.util.concurrent.ConcurrentMap;
  28
  29 import org.apache.http.HttpStatus;
  30 import org.apache.jackrabbit.webdav.MultiStatus;
  31 import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
  32
  33 import android.accounts.Account;
  34 import android.accounts.AccountManager;
  35 import android.app.Notification;
  36 import android.app.NotificationManager;
  37 import android.app.PendingIntent;
  38 import android.app.Service;
  39 import android.content.Intent;
  40 import android.os.Binder;
  41 import android.os.Handler;
  42 import android.os.HandlerThread;
  43 import android.os.IBinder;
  44 import android.os.Looper;
  45 import android.os.Message;
  46 import android.os.Process;
  47 import android.util.Log;
  48 import android.webkit.MimeTypeMap;
  49 import android.widget.RemoteViews;
  50 import android.widget.Toast;
  51
  52 import com.owncloud.android.R;
  53 import com.owncloud.android.authenticator.AccountAuthenticator;
  54 import com.owncloud.android.datamodel.FileDataStorageManager;
  55 import com.owncloud.android.datamodel.OCFile;
  56 import com.owncloud.android.db.DbHandler;
  57 import com.owncloud.android.network.OwnCloudClientUtils;
  58 import com.owncloud.android.operations.ChunkedUploadFileOperation;
  59 import com.owncloud.android.operations.RemoteOperationResult;
  60 import com.owncloud.android.operations.RemoteOperationResult.ResultCode;
  61 import com.owncloud.android.operations.UploadFileOperation;
  62 import com.owncloud.android.ui.activity.FailedUploadActivity;
  63 import com.owncloud.android.ui.activity.FileDetailActivity;
  64 import com.owncloud.android.ui.activity.InstantUploadActivity;
  65 import com.owncloud.android.ui.fragment.FileDetailFragment;
  66 import com.owncloud.android.utils.OwnCloudVersion;
  67
  68 import eu.alefzero.webdav.OnDatatransferProgressListener;
  69 import eu.alefzero.webdav.WebdavClient;
  70 import eu.alefzero.webdav.WebdavEntry;
  71 import eu.alefzero.webdav.WebdavUtils;
  72
  73 public class FileUploader extends Service implements OnDatatransferProgressListener {
  74
  75     public static final String UPLOAD_FINISH_MESSAGE = "UPLOAD_FINISH";
  76     public static final String EXTRA_UPLOAD_RESULT = "RESULT";
  77     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  78     public static final String EXTRA_OLD_REMOTE_PATH = "OLD_REMOTE_PATH";
  79     public static final String EXTRA_OLD_FILE_PATH = "OLD_FILE_PATH";
  80     public static final String ACCOUNT_NAME = "ACCOUNT_NAME";
  81
  82     public static final String KEY_FILE = "FILE";
  83     public static final String KEY_LOCAL_FILE = "LOCAL_FILE";
  84     public static final String KEY_REMOTE_FILE = "REMOTE_FILE";
  85     public static final String KEY_MIME_TYPE = "MIME_TYPE";
  86
  87     public static final String KEY_ACCOUNT = "ACCOUNT";
  88
  89     public static final String KEY_UPLOAD_TYPE = "UPLOAD_TYPE";
  90     public static final String KEY_FORCE_OVERWRITE = "KEY_FORCE_OVERWRITE";
  91     public static final String KEY_INSTANT_UPLOAD = "INSTANT_UPLOAD";
  92     public static final String KEY_LOCAL_BEHAVIOUR = "BEHAVIOUR";
  93
  94     public static final int LOCAL_BEHAVIOUR_COPY = 0;
  95     public static final int LOCAL_BEHAVIOUR_MOVE = 1;
  96     public static final int LOCAL_BEHAVIOUR_FORGET = 2;
  97
  98     public static final int UPLOAD_SINGLE_FILE = 0;
  99     public static final int UPLOAD_MULTIPLE_FILES = 1;
 100
 101     private static final String TAG = FileUploader.class.getSimpleName();
 102
 103     private Looper mServiceLooper;
 104     private ServiceHandler mServiceHandler;
 105     private IBinder mBinder;
 106     private WebdavClient mUploadClient = null;
 107     private Account mLastAccount = null;
 108     private FileDataStorageManager mStorageManager;
 109
 110     private ConcurrentMap<String, UploadFileOperation> mPendingUploads = new ConcurrentHashMap<String, UploadFileOperation>();
 111     private UploadFileOperation mCurrentUpload = null;
 112
 113     private NotificationManager mNotificationManager;
 114     private Notification mNotification;
 115     private int mLastPercent;
 116     private RemoteViews mDefaultNotificationContentView;
 117
 118     /**
 119      * Builds a key for mPendingUploads from the account and file to upload
 120      *
 121      * @param account Account where the file to download is stored
 122      * @param file File to download
 123      */
 124     private String buildRemoteName(Account account, OCFile file) {
 125         return account.name + file.getRemotePath();
 126     }
 127
 128     private String buildRemoteName(Account account, String remotePath) {
 129         return account.name + remotePath;
 130     }
 131
 132     /**
 133      * Checks if an ownCloud server version should support chunked uploads.
 134      *
 135      * @param version OwnCloud version instance corresponding to an ownCloud
 136      *            server.
 137      * @return 'True' if the ownCloud server with version supports chunked
 138      *         uploads.
 139      */
 140     private static boolean chunkedUploadIsSupported(OwnCloudVersion version) {
 141         return (version != null && version.compareTo(OwnCloudVersion.owncloud_v4_5) >= 0);
 142     }
 143
 144     /**
 145      * Service initialization
 146      */
 147     @Override
 148     public void onCreate() {
 149         super.onCreate();
 150         Log.i(TAG, "mPendingUploads size:" + mPendingUploads.size());
 151         mNotificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
 152         HandlerThread thread = new HandlerThread("FileUploaderThread", Process.THREAD_PRIORITY_BACKGROUND);
 153         thread.start();
 154         mServiceLooper = thread.getLooper();
 155         mServiceHandler = new ServiceHandler(mServiceLooper, this);
 156         mBinder = new FileUploaderBinder();
 157     }
 158
 159     /**
 160      * Entry point to add one or several files to the queue of uploads.
 161      *
 162      * New uploads are added calling to startService(), resulting in a call to
 163      * this method. This ensures the service will keep on working although the
 164      * caller activity goes away.
 165      */
 166     @Override
 167     public int onStartCommand(Intent intent, int flags, int startId) {
 168         if (!intent.hasExtra(KEY_ACCOUNT) || !intent.hasExtra(KEY_UPLOAD_TYPE)
 169                 || !(intent.hasExtra(KEY_LOCAL_FILE) || intent.hasExtra(KEY_FILE))) {
 170             Log.e(TAG, "Not enough information provided in intent");
 171             return Service.START_NOT_STICKY;
 172         }
 173         int uploadType = intent.getIntExtra(KEY_UPLOAD_TYPE, -1);
 174         if (uploadType == -1) {
 175             Log.e(TAG, "Incorrect upload type provided");
 176             return Service.START_NOT_STICKY;
 177         }
 178         Account account = intent.getParcelableExtra(KEY_ACCOUNT);
 179
 180         String[] localPaths = null, remotePaths = null, mimeTypes = null;
 181         OCFile[] files = null;
 182         if (uploadType == UPLOAD_SINGLE_FILE) {
 183
 184             if (intent.hasExtra(KEY_FILE)) {
 185                 files = new OCFile[] { intent.getParcelableExtra(KEY_FILE) };
 186
 187             } else {
 188                 localPaths = new String[] { intent.getStringExtra(KEY_LOCAL_FILE) };
 189                 remotePaths = new String[] { intent.getStringExtra(KEY_REMOTE_FILE) };
 190                 mimeTypes = new String[] { intent.getStringExtra(KEY_MIME_TYPE) };
 191             }
 192
 193         } else { // mUploadType == UPLOAD_MULTIPLE_FILES
 194
 195             if (intent.hasExtra(KEY_FILE)) {
 196                 files = (OCFile[]) intent.getParcelableArrayExtra(KEY_FILE); // TODO
 197                                                                              // will
 198                                                                              // this
 199                                                                              // casting
 200                                                                              // work
 201                                                                              // fine?
 202
 203             } else {
 204                 localPaths = intent.getStringArrayExtra(KEY_LOCAL_FILE);
 205                 remotePaths = intent.getStringArrayExtra(KEY_REMOTE_FILE);
 206                 mimeTypes = intent.getStringArrayExtra(KEY_MIME_TYPE);
 207             }
 208         }
 209
 210         FileDataStorageManager storageManager = new FileDataStorageManager(account, getContentResolver());
 211
 212         boolean forceOverwrite = intent.getBooleanExtra(KEY_FORCE_OVERWRITE, false);
 213         boolean isInstant = intent.getBooleanExtra(KEY_INSTANT_UPLOAD, false);
 214         int localAction = intent.getIntExtra(KEY_LOCAL_BEHAVIOUR, LOCAL_BEHAVIOUR_COPY);
 215         boolean fixed = false;
 216         if (isInstant) {
 217             fixed = checkAndFixInstantUploadDirectory(storageManager); // MUST
 218                                                                        // be
 219                                                                        // done
 220                                                                        // BEFORE
 221                                                                        // calling
 222                                                                        // obtainNewOCFileToUpload
 223         }
 224
 225         if (intent.hasExtra(KEY_FILE) && files == null) {
 226             Log.e(TAG, "Incorrect array for OCFiles provided in upload intent");
 227             return Service.START_NOT_STICKY;
 228
 229         } else if (!intent.hasExtra(KEY_FILE)) {
 230             if (localPaths == null) {
 231                 Log.e(TAG, "Incorrect array for local paths provided in upload intent");
 232                 return Service.START_NOT_STICKY;
 233             }
 234             if (remotePaths == null) {
 235                 Log.e(TAG, "Incorrect array for remote paths provided in upload intent");
 236                 return Service.START_NOT_STICKY;
 237             }
 238             if (localPaths.length != remotePaths.length) {
 239                 Log.e(TAG, "Different number of remote paths and local paths!");
 240                 return Service.START_NOT_STICKY;
 241             }
 242
 243             files = new OCFile[localPaths.length];
 244             for (int i = 0; i < localPaths.length; i++) {
 245                 files[i] = obtainNewOCFileToUpload(remotePaths[i], localPaths[i], ((mimeTypes != null) ? mimeTypes[i]
 246                         : (String) null), storageManager);
 247                 if (files[i] == null) {
 248                     // TODO @andromaex add failure Notiification
 249                     return Service.START_NOT_STICKY;
 250                 }
 251             }
 252         }
 253
 254         OwnCloudVersion ocv = new OwnCloudVersion(AccountManager.get(this).getUserData(account,
 255                 AccountAuthenticator.KEY_OC_VERSION));
 256         boolean chunked = FileUploader.chunkedUploadIsSupported(ocv);
 257         AbstractList<String> requestedUploads = new Vector<String>();
 258         String uploadKey = null;
 259         UploadFileOperation newUpload = null;
 260         try {
 261             for (int i = 0; i < files.length; i++) {
 262                 uploadKey = buildRemoteName(account, files[i].getRemotePath());
 263                 if (chunked) {
 264                     newUpload = new ChunkedUploadFileOperation(account, files[i], isInstant, forceOverwrite,
 265                             localAction);
 266                 } else {
 267                     newUpload = new UploadFileOperation(account, files[i], isInstant, forceOverwrite, localAction);
 268                 }
 269                 if (fixed && i == 0) {
 270                     newUpload.setRemoteFolderToBeCreated();
 271                 }
 272                 mPendingUploads.putIfAbsent(uploadKey, newUpload);
 273                 newUpload.addDatatransferProgressListener(this);
 274                 requestedUploads.add(uploadKey);
 275             }
 276
 277         } catch (IllegalArgumentException e) {
 278             Log.e(TAG, "Not enough information provided in intent: " + e.getMessage());
 279             return START_NOT_STICKY;
 280
 281         } catch (IllegalStateException e) {
 282             Log.e(TAG, "Bad information provided in intent: " + e.getMessage());
 283             return START_NOT_STICKY;
 284
 285         } catch (Exception e) {
 286             Log.e(TAG, "Unexpected exception while processing upload intent", e);
 287             return START_NOT_STICKY;
 288
 289         }
 290
 291         if (requestedUploads.size() > 0) {
 292             Message msg = mServiceHandler.obtainMessage();
 293             msg.arg1 = startId;
 294             msg.obj = requestedUploads;
 295             mServiceHandler.sendMessage(msg);
 296         }
 297         Log.i(TAG, "mPendingUploads size:" + mPendingUploads.size());
 298         return Service.START_NOT_STICKY;
 299     }
 300
 301     /**
 302      * Provides a binder object that clients can use to perform operations on
 303      * the queue of uploads, excepting the addition of new files.
 304      *
 305      * Implemented to perform cancellation, pause and resume of existing
 306      * uploads.
 307      */
 308     @Override
 309     public IBinder onBind(Intent arg0) {
 310         return mBinder;
 311     }
 312
 313     /**
 314      * Binder to let client components to perform operations on the queue of
 315      * uploads.
 316      *
 317      * It provides by itself the available operations.
 318      */
 319     public class FileUploaderBinder extends Binder {
 320
 321         /**
 322          * Cancels a pending or current upload of a remote file.
 323          *
 324          * @param account Owncloud account where the remote file will be stored.
 325          * @param file A file in the queue of pending uploads
 326          */
 327         public void cancel(Account account, OCFile file) {
 328             UploadFileOperation upload = null;
 329             synchronized (mPendingUploads) {
 330                 upload = mPendingUploads.remove(buildRemoteName(account, file));
 331             }
 332             if (upload != null) {
 333                 upload.cancel();
 334             }
 335         }
 336
 337         /**
 338          * Returns True when the file described by 'file' is being uploaded to
 339          * the ownCloud account 'account' or waiting for it
 340          *
 341          * If 'file' is a directory, returns 'true' if some of its descendant
 342          * files is downloading or waiting to download.
 343          *
 344          * @param account Owncloud account where the remote file will be stored.
 345          * @param file A file that could be in the queue of pending uploads
 346          */
 347         public boolean isUploading(Account account, OCFile file) {
 348             if (account == null || file == null)
 349                 return false;
 350             String targetKey = buildRemoteName(account, file);
 351             synchronized (mPendingUploads) {
 352                 if (file.isDirectory()) {
 353                     // this can be slow if there are many downloads :(
 354                     Iterator<String> it = mPendingUploads.keySet().iterator();
 355                     boolean found = false;
 356                     while (it.hasNext() && !found) {
 357                         found = it.next().startsWith(targetKey);
 358                     }
 359                     return found;
 360                 } else {
 361                     return (mPendingUploads.containsKey(targetKey));
 362                 }
 363             }
 364         }
 365     }
 366
 367     /**
 368      * Upload worker. Performs the pending uploads in the order they were
 369      * requested.
 370      *
 371      * Created with the Looper of a new thread, started in
 372      * {@link FileUploader#onCreate()}.
 373      */
 374     private static class ServiceHandler extends Handler {
 375         // don't make it a final class, and don't remove the static ; lint will
 376         // warn about a possible memory leak
 377         FileUploader mService;
 378
 379         public ServiceHandler(Looper looper, FileUploader service) {
 380             super(looper);
 381             if (service == null)
 382                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 383             mService = service;
 384         }
 385
 386         @Override
 387         public void handleMessage(Message msg) {
 388             @SuppressWarnings("unchecked")
 389             AbstractList<String> requestedUploads = (AbstractList<String>) msg.obj;
 390             if (msg.obj != null) {
 391                 Iterator<String> it = requestedUploads.iterator();
 392                 while (it.hasNext()) {
 393                     mService.uploadFile(it.next());
 394                 }
 395             }
 396             mService.stopSelf(msg.arg1);
 397         }
 398     }
 399
 400     /**
 401      * Core upload method: sends the file(s) to upload
 402      *
 403      * @param uploadKey Key to access the upload to perform, contained in
 404      *            mPendingUploads
 405      */
 406     public void uploadFile(String uploadKey) {
 407
 408         synchronized (mPendingUploads) {
 409             mCurrentUpload = mPendingUploads.get(uploadKey);
 410         }
 411
 412         if (mCurrentUpload != null) {
 413
 414             notifyUploadStart(mCurrentUpload);
 415
 416             // / prepare client object to send requests to the ownCloud server
 417             if (mUploadClient == null || !mLastAccount.equals(mCurrentUpload.getAccount())) {
 418                 mLastAccount = mCurrentUpload.getAccount();
 419                 mStorageManager = new FileDataStorageManager(mLastAccount, getContentResolver());
 420                 mUploadClient = OwnCloudClientUtils.createOwnCloudClient(mLastAccount, getApplicationContext());
 421             }
 422
 423             // / create remote folder for instant uploads
 424             if (mCurrentUpload.isRemoteFolderToBeCreated()) {
 425                 mUploadClient.createDirectory(InstantUploadService.INSTANT_UPLOAD_DIR);
 426                 // ignoring result fail could just mean that it already exists,
 427                 // but local database is not synchronized the upload will be
 428                 // tried anyway
 429             }
 430
 431             // / perform the upload
 432             RemoteOperationResult uploadResult = null;
 433             try {
 434                 uploadResult = mCurrentUpload.execute(mUploadClient);
 435                 if (uploadResult.isSuccess()) {
 436                     saveUploadedFile();
 437                 }
 438
 439             } finally {
 440                 synchronized (mPendingUploads) {
 441                     mPendingUploads.remove(uploadKey);
 442                     Log.i(TAG, "Remove CurrentUploadItem from pending upload Item Map.");
 443                 }
 444             }
 445
 446             // notify result
 447             notifyUploadResult(uploadResult, mCurrentUpload);
 448             sendFinalBroadcast(mCurrentUpload, uploadResult);
 449
 450         }
 451
 452     }
 453
 454     /**
 455      * Saves a OC File after a successful upload.
 456      *
 457      * A PROPFIND is necessary to keep the props in the local database
 458      * synchronized with the server, specially the modification time and Etag
 459      * (where available)
 460      *
 461      * TODO refactor this ugly thing
 462      */
 463     private void saveUploadedFile() {
 464         OCFile file = mCurrentUpload.getFile();
 465         long syncDate = System.currentTimeMillis();
 466         file.setLastSyncDateForData(syncDate);
 467
 468         // / new PROPFIND to keep data consistent with server in theory, should
 469         // return the same we already have
 470         PropFindMethod propfind = null;
 471         RemoteOperationResult result = null;
 472         try {
 473             propfind = new PropFindMethod(mUploadClient.getBaseUri()
 474                     + WebdavUtils.encodePath(mCurrentUpload.getRemotePath()));
 475             int status = mUploadClient.executeMethod(propfind);
 476             boolean isMultiStatus = (status == HttpStatus.SC_MULTI_STATUS);
 477             if (isMultiStatus) {
 478                 MultiStatus resp = propfind.getResponseBodyAsMultiStatus();
 479                 WebdavEntry we = new WebdavEntry(resp.getResponses()[0], mUploadClient.getBaseUri().getPath());
 480                 updateOCFile(file, we);
 481                 file.setLastSyncDateForProperties(syncDate);
 482
 483             } else {
 484                 mUploadClient.exhaustResponse(propfind.getResponseBodyAsStream());
 485             }
 486
 487             result = new RemoteOperationResult(isMultiStatus, status);
 488             Log.i(TAG, "Update: synchronizing properties for uploaded " + mCurrentUpload.getRemotePath() + ": "
 489                     + result.getLogMessage());
 490
 491         } catch (Exception e) {
 492             result = new RemoteOperationResult(e);
 493             Log.e(TAG, "Update: synchronizing properties for uploaded " + mCurrentUpload.getRemotePath() + ": "
 494                     + result.getLogMessage(), e);
 495
 496         } finally {
 497             if (propfind != null)
 498                 propfind.releaseConnection();
 499         }
 500
 501         // / maybe this would be better as part of UploadFileOperation... or
 502         // maybe all this method
 503         if (mCurrentUpload.wasRenamed()) {
 504             OCFile oldFile = mCurrentUpload.getOldFile();
 505             if (oldFile.fileExists()) {
 506                 oldFile.setStoragePath(null);
 507                 mStorageManager.saveFile(oldFile);
 508
 509             } // else: it was just an automatic renaming due to a name
 510               // coincidence; nothing else is needed, the storagePath is right
 511               // in the instance returned by mCurrentUpload.getFile()
 512         }
 513
 514         mStorageManager.saveFile(file);
 515     }
 516
 517     private void updateOCFile(OCFile file, WebdavEntry we) {
 518         file.setCreationTimestamp(we.createTimestamp());
 519         file.setFileLength(we.contentLength());
 520         file.setMimetype(we.contentType());
 521         file.setModificationTimestamp(we.modifiedTimestamp());
 522         file.setModificationTimestampAtLastSyncForData(we.modifiedTimestamp());
 523         // file.setEtag(mCurrentDownload.getEtag()); // TODO Etag, where
 524         // available
 525     }
 526
 527     private boolean checkAndFixInstantUploadDirectory(FileDataStorageManager storageManager) {
 528         OCFile instantUploadDir = storageManager.getFileByPath(InstantUploadService.INSTANT_UPLOAD_DIR);
 529         if (instantUploadDir == null) {
 530             // first instant upload in the account, or never account not
 531             // synchronized after the remote InstantUpload folder was created
 532             OCFile newDir = new OCFile(InstantUploadService.INSTANT_UPLOAD_DIR);
 533             newDir.setMimetype("DIR");
 534             OCFile path = storageManager.getFileByPath(OCFile.PATH_SEPARATOR);
 535
 536             if (path != null) {
 537                 newDir.setParentId(path.getFileId());
 538                 storageManager.saveFile(newDir);
 539                 return true;
 540             } else {
 541                 return false;
 542             }
 543
 544         }
 545         return false;
 546     }
 547
 548     private OCFile obtainNewOCFileToUpload(String remotePath, String localPath, String mimeType,
 549             FileDataStorageManager storageManager) {
 550         OCFile newFile = new OCFile(remotePath);
 551         newFile.setStoragePath(localPath);
 552         newFile.setLastSyncDateForProperties(0);
 553         newFile.setLastSyncDateForData(0);
 554
 555         // size
 556         if (localPath != null && localPath.length() > 0) {
 557             File localFile = new File(localPath);
 558             newFile.setFileLength(localFile.length());
 559             newFile.setLastSyncDateForData(localFile.lastModified());
 560         } // don't worry about not assigning size, the problems with localPath
 561           // are checked when the UploadFileOperation instance is created
 562
 563         // MIME type
 564         if (mimeType == null || mimeType.length() <= 0) {
 565             try {
 566                 mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(
 567                         remotePath.substring(remotePath.lastIndexOf('.') + 1));
 568             } catch (IndexOutOfBoundsException e) {
 569                 Log.e(TAG, "Trying to find out MIME type of a file without extension: " + remotePath);
 570             }
 571         }
 572         if (mimeType == null) {
 573             mimeType = "application/octet-stream";
 574         }
 575         newFile.setMimetype(mimeType);
 576
 577         // parent dir
 578         String parentPath = new File(remotePath).getParent();
 579         parentPath = parentPath.endsWith(OCFile.PATH_SEPARATOR) ? parentPath : parentPath + OCFile.PATH_SEPARATOR;
 580         OCFile parentDir = storageManager.getFileByPath(parentPath);
 581         if (parentDir == null) {
 582             Toast t = Toast
 583                     .makeText(
 584                             getApplicationContext(),
 585                             "The first time the InstantUpload is running you must be online, so the target folder can successfully created by the upload process",
 586                             30);
 587             t.show();
 588             return null;
 589         }
 590         long parentDirId = parentDir.getFileId();
 591         newFile.setParentId(parentDirId);
 592         return newFile;
 593     }
 594
 595     /**
 596      * Creates a status notification to show the upload progress
 597      *
 598      * @param upload Upload operation starting.
 599      */
 600     private void notifyUploadStart(UploadFileOperation upload) {
 601         // / create status notification with a progress bar
 602         mLastPercent = 0;
 603         mNotification = new Notification(R.drawable.icon, getString(R.string.uploader_upload_in_progress_ticker),
 604                 System.currentTimeMillis());
 605         mNotification.flags |= Notification.FLAG_ONGOING_EVENT;
 606         mDefaultNotificationContentView = mNotification.contentView;
 607         mNotification.contentView = new RemoteViews(getApplicationContext().getPackageName(),
 608                 R.layout.progressbar_layout);
 609         mNotification.contentView.setProgressBar(R.id.status_progress, 100, 0, false);
 610         mNotification.contentView.setTextViewText(R.id.status_text,
 611                 String.format(getString(R.string.uploader_upload_in_progress_content), 0, upload.getFileName()));
 612         mNotification.contentView.setImageViewResource(R.id.status_icon, R.drawable.icon);
 613
 614         // / includes a pending intent in the notification showing the details
 615         // view of the file
 616         Intent showDetailsIntent = new Intent(this, FileDetailActivity.class);
 617         showDetailsIntent.putExtra(FileDetailFragment.EXTRA_FILE, upload.getFile());
 618         showDetailsIntent.putExtra(FileDetailFragment.EXTRA_ACCOUNT, upload.getAccount());
 619         showDetailsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
 620         mNotification.contentIntent = PendingIntent.getActivity(getApplicationContext(),
 621                 (int) System.currentTimeMillis(), showDetailsIntent, 0);
 622
 623         mNotificationManager.notify(R.string.uploader_upload_in_progress_ticker, mNotification);
 624     }
 625
 626     /**
 627      * Callback method to update the progress bar in the status notification
 628      */
 629     @Override
 630     public void onTransferProgress(long progressRate, long totalTransferredSoFar, long totalToTransfer, String fileName) {
 631         int percent = (int) (100.0 * ((double) totalTransferredSoFar) / ((double) totalToTransfer));
 632         if (percent != mLastPercent) {
 633             mNotification.contentView.setProgressBar(R.id.status_progress, 100, percent, false);
 634             String text = String.format(getString(R.string.uploader_upload_in_progress_content), percent, fileName);
 635             mNotification.contentView.setTextViewText(R.id.status_text, text);
 636             mNotificationManager.notify(R.string.uploader_upload_in_progress_ticker, mNotification);
 637         }
 638         mLastPercent = percent;
 639     }
 640
 641     /**
 642      * Callback method to update the progress bar in the status notification
 643      * (old version)
 644      */
 645     @Override
 646     public void onTransferProgress(long progressRate) {
 647         // NOTHING TO DO HERE ANYMORE
 648     }
 649
 650     /**
 651      * Updates the status notification with the result of an upload operation.
 652      *
 653      * @param uploadResult Result of the upload operation.
 654      * @param upload Finished upload operation
 655      */
 656     private void notifyUploadResult(RemoteOperationResult uploadResult, UploadFileOperation upload) {
 657         Log.d(TAG, "NotifyUploadResult with resultCode: " + uploadResult.getCode());
 658         if (uploadResult.isCancelled()) {
 659             // / cancelled operation -> silent removal of progress notification
 660             mNotificationManager.cancel(R.string.uploader_upload_in_progress_ticker);
 661
 662         } else if (uploadResult.isSuccess()) {
 663             // / success -> silent update of progress notification to success
 664             // message
 665             mNotification.flags ^= Notification.FLAG_ONGOING_EVENT; // remove
 666                                                                     // the
 667                                                                     // ongoing
 668                                                                     // flag
 669             mNotification.flags |= Notification.FLAG_AUTO_CANCEL;
 670             mNotification.contentView = mDefaultNotificationContentView;
 671
 672             // / includes a pending intent in the notification showing the
 673             // details view of the file
 674             Intent showDetailsIntent = new Intent(this, FileDetailActivity.class);
 675             showDetailsIntent.putExtra(FileDetailFragment.EXTRA_FILE, upload.getFile());
 676             showDetailsIntent.putExtra(FileDetailFragment.EXTRA_ACCOUNT, upload.getAccount());
 677             showDetailsIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
 678             mNotification.contentIntent = PendingIntent.getActivity(getApplicationContext(),
 679                     (int) System.currentTimeMillis(), showDetailsIntent, 0);
 680
 681             mNotification.setLatestEventInfo(getApplicationContext(),
 682                     getString(R.string.uploader_upload_succeeded_ticker),
 683                     String.format(getString(R.string.uploader_upload_succeeded_content_single), upload.getFileName()),
 684                     mNotification.contentIntent);
 685
 686             mNotificationManager.notify(R.string.uploader_upload_in_progress_ticker, mNotification); // NOT
 687                                                                                                      // AN
 688             DbHandler db = new DbHandler(this.getBaseContext());
 689             db.removeIUPendingFile(mCurrentUpload.getFile().getStoragePath());
 690             db.close();
 691
 692         } else {
 693
 694             // / fail -> explicit failure notification
 695             mNotificationManager.cancel(R.string.uploader_upload_in_progress_ticker);
 696             Notification finalNotification = new Notification(R.drawable.icon,
 697                     getString(R.string.uploader_upload_failed_ticker), System.currentTimeMillis());
 698             finalNotification.flags |= Notification.FLAG_AUTO_CANCEL;
 699
 700             String content = null;
 701             if (uploadResult.getCode() == ResultCode.LOCAL_STORAGE_FULL
 702                     || uploadResult.getCode() == ResultCode.LOCAL_STORAGE_NOT_COPIED) {
 703                 // TODO we need a class to provide error messages for the users
 704                 // from a RemoteOperationResult and a RemoteOperation
 705                 content = String.format(getString(R.string.error__upload__local_file_not_copied), upload.getFileName(),
 706                         getString(R.string.app_name));
 707             } else if (uploadResult.getCode() == ResultCode.QUOTA_EXCEEDED) {
 708                 content = getString(R.string.failed_upload_quota_exceeded_text);
 709             } else {
 710                 content = String
 711                         .format(getString(R.string.uploader_upload_failed_content_single), upload.getFileName());
 712             }
 713
 714             // we add only for instant-uploads the InstantUploadActivity and the
 715             // db entry
 716             Intent detailUploadIntent = null;
 717             if (upload.isInstant()) {
 718                 detailUploadIntent = new Intent(this, InstantUploadActivity.class);
 719                 detailUploadIntent.putExtra(FileUploader.KEY_ACCOUNT, upload.getAccount());
 720             } else {
 721                 detailUploadIntent = new Intent(this, FailedUploadActivity.class);
 722                 detailUploadIntent.putExtra(FailedUploadActivity.MESSAGE, content);
 723             }
 724             finalNotification.contentIntent = PendingIntent.getActivity(getApplicationContext(),
 725                     (int) System.currentTimeMillis(), detailUploadIntent, PendingIntent.FLAG_UPDATE_CURRENT
 726                             | PendingIntent.FLAG_ONE_SHOT);
 727
 728             if (upload.isInstant()) {
 729                 DbHandler db = null;
 730                 try {
 731                     db = new DbHandler(this.getBaseContext());
 732                     String message = uploadResult.getLogMessage() + " errorCode: " + uploadResult.getCode();
 733                     Log.e(TAG, message + " Http-Code: " + uploadResult.getHttpCode());
 734                     if (uploadResult.getCode() == ResultCode.QUOTA_EXCEEDED) {
 735                         message = getString(R.string.failed_upload_quota_exceeded_text);
 736                     }
 737                     if (db.updateFileState(upload.getOriginalStoragePath(), DbHandler.UPLOAD_STATUS_UPLOAD_FAILED,
 738                             message) == 0) {
 739                         db.putFileForLater(upload.getOriginalStoragePath(), upload.getAccount().name, message);
 740                     }
 741                 } finally {
 742                     if (db != null) {
 743                         db.close();
 744                     }
 745                 }
 746             }
 747             finalNotification.setLatestEventInfo(getApplicationContext(),
 748                     getString(R.string.uploader_upload_failed_ticker), content, finalNotification.contentIntent);
 749
 750             mNotificationManager.notify(R.string.uploader_upload_failed_ticker, finalNotification);
 751         }
 752
 753     }
 754
 755     /**
 756      * Sends a broadcast in order to the interested activities can update their
 757      * view
 758      *
 759      * @param upload Finished upload operation
 760      * @param uploadResult Result of the upload operation
 761      */
 762     private void sendFinalBroadcast(UploadFileOperation upload, RemoteOperationResult uploadResult) {
 763         Intent end = new Intent(UPLOAD_FINISH_MESSAGE);
 764         end.putExtra(EXTRA_REMOTE_PATH, upload.getRemotePath()); // real remote
 765                                                                  // path, after
 766                                                                  // possible
 767                                                                  // automatic
 768                                                                  // renaming
 769         if (upload.wasRenamed()) {
 770             end.putExtra(EXTRA_OLD_REMOTE_PATH, upload.getOldFile().getRemotePath());
 771         }
 772         end.putExtra(EXTRA_OLD_FILE_PATH, upload.getOriginalStoragePath());
 773         end.putExtra(ACCOUNT_NAME, upload.getAccount().name);
 774         end.putExtra(EXTRA_UPLOAD_RESULT, uploadResult.isSuccess());
 775         sendStickyBroadcast(end);
 776     }
 777
 778 }