src/com/owncloud/android/services/OperationsService.java

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   Copyright (C) 2015 ownCloud Inc.
   5  *
   6  *   This program is free software: you can redistribute it and/or modify
   7  *   it under the terms of the GNU General Public License version 2,
   8  *   as published by the Free Software Foundation.
   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.services;
  21
  22 import java.io.IOException;
  23 import java.util.Iterator;
  24 import java.util.concurrent.ConcurrentHashMap;
  25 import java.util.concurrent.ConcurrentLinkedQueue;
  26 import java.util.concurrent.ConcurrentMap;
  27
  28 import com.owncloud.android.MainApp;
  29 import com.owncloud.android.R;
  30 import com.owncloud.android.datamodel.FileDataStorageManager;
  31 import com.owncloud.android.datamodel.OCFile;
  32 import com.owncloud.android.lib.common.OwnCloudAccount;
  33 import com.owncloud.android.lib.common.OwnCloudClient;
  34 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  35 import com.owncloud.android.lib.common.OwnCloudCredentials;
  36 import com.owncloud.android.lib.common.OwnCloudCredentialsFactory;
  37 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  38 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  39 import com.owncloud.android.lib.common.operations.RemoteOperation;
  40 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  41 import com.owncloud.android.lib.common.utils.Log_OC;
  42 import com.owncloud.android.lib.resources.shares.ShareType;
  43 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  44 import com.owncloud.android.operations.common.SyncOperation;
  45 import com.owncloud.android.operations.CreateFolderOperation;
  46 import com.owncloud.android.operations.CreateShareOperation;
  47 import com.owncloud.android.operations.GetServerInfoOperation;
  48 import com.owncloud.android.operations.MoveFileOperation;
  49 import com.owncloud.android.operations.OAuth2GetAccessToken;
  50 import com.owncloud.android.operations.RemoveFileOperation;
  51 import com.owncloud.android.operations.RenameFileOperation;
  52 import com.owncloud.android.operations.SynchronizeFileOperation;
  53 import com.owncloud.android.operations.SynchronizeFolderOperation;
  54 import com.owncloud.android.operations.UnshareLinkOperation;
  55
  56 import android.accounts.Account;
  57 import android.accounts.AccountsException;
  58 import android.accounts.AuthenticatorException;
  59 import android.accounts.OperationCanceledException;
  60 import android.app.Service;
  61 import android.content.Intent;
  62 import android.net.Uri;
  63 import android.os.Binder;
  64 import android.os.Handler;
  65 import android.os.HandlerThread;
  66 import android.os.IBinder;
  67 import android.os.Looper;
  68 import android.os.Message;
  69 import android.os.Process;
  70 import android.util.Pair;
  71
  72 public class OperationsService extends Service {
  73
  74     private static final String TAG = OperationsService.class.getSimpleName();
  75
  76     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  77     public static final String EXTRA_SERVER_URL = "SERVER_URL";
  78     public static final String EXTRA_OAUTH2_QUERY_PARAMETERS = "OAUTH2_QUERY_PARAMETERS";
  79     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  80     public static final String EXTRA_SEND_INTENT = "SEND_INTENT";
  81     public static final String EXTRA_NEWNAME = "NEWNAME";
  82     public static final String EXTRA_REMOVE_ONLY_LOCAL = "REMOVE_LOCAL_COPY";
  83     public static final String EXTRA_CREATE_FULL_PATH = "CREATE_FULL_PATH";
  84     public static final String EXTRA_SYNC_FILE_CONTENTS = "SYNC_FILE_CONTENTS";
  85     public static final String EXTRA_RESULT = "RESULT";
  86     public static final String EXTRA_NEW_PARENT_PATH = "NEW_PARENT_PATH";
  87     public static final String EXTRA_FILE = "FILE";
  88     public static final String EXTRA_PASSWORD_SHARE = "PASSWORD_SHARE";
  89
  90     public static final String EXTRA_COOKIE = "COOKIE";
  91
  92     public static final String ACTION_CREATE_SHARE = "CREATE_SHARE";
  93     public static final String ACTION_UNSHARE = "UNSHARE";
  94     public static final String ACTION_GET_SERVER_INFO = "GET_SERVER_INFO";
  95     public static final String ACTION_OAUTH2_GET_ACCESS_TOKEN = "OAUTH2_GET_ACCESS_TOKEN";
  96     public static final String ACTION_GET_USER_NAME = "GET_USER_NAME";
  97     public static final String ACTION_RENAME = "RENAME";
  98     public static final String ACTION_REMOVE = "REMOVE";
  99     public static final String ACTION_CREATE_FOLDER = "CREATE_FOLDER";
 100     public static final String ACTION_SYNC_FILE = "SYNC_FILE";
 101     public static final String ACTION_SYNC_FOLDER = "SYNC_FOLDER";  // for the moment, just to download
 102     public static final String ACTION_MOVE_FILE = "MOVE_FILE";
 103
 104     public static final String ACTION_OPERATION_ADDED = OperationsService.class.getName() + ".OPERATION_ADDED";
 105     public static final String ACTION_OPERATION_FINISHED = OperationsService.class.getName() + ".OPERATION_FINISHED";
 106
 107
 108     private ConcurrentMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>
 109         mUndispatchedFinishedOperations =
 110             new ConcurrentHashMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>();
 111
 112     private static class Target {
 113         public Uri mServerUrl = null;
 114         public Account mAccount = null;
 115         public String mCookie = null;
 116
 117         public Target(Account account, Uri serverUrl, String cookie) {
 118             mAccount = account;
 119             mServerUrl = serverUrl;
 120             mCookie = cookie;
 121         }
 122     }
 123
 124     private ServiceHandler mOperationsHandler;
 125     private OperationsServiceBinder mOperationsBinder;
 126
 127     private SyncFolderHandler mSyncFolderHandler;
 128
 129     /**
 130      * Service initialization
 131      */
 132     @Override
 133     public void onCreate() {
 134         super.onCreate();
 135         Log_OC.d(TAG, "Creating service");
 136
 137         /// First worker thread for most of operations
 138         HandlerThread thread = new HandlerThread("Operations thread", Process.THREAD_PRIORITY_BACKGROUND);
 139         thread.start();
 140         mOperationsHandler = new ServiceHandler(thread.getLooper(), this);
 141         mOperationsBinder = new OperationsServiceBinder(mOperationsHandler);
 142
 143         /// Separated worker thread for download of folders (WIP)
 144         thread = new HandlerThread("Syncfolder thread", Process.THREAD_PRIORITY_BACKGROUND);
 145         thread.start();
 146         mSyncFolderHandler = new SyncFolderHandler(thread.getLooper(), this);
 147     }
 148
 149
 150     /**
 151      * Entry point to add a new operation to the queue of operations.
 152      *
 153      * New operations are added calling to startService(), resulting in a call to this method.
 154      * This ensures the service will keep on working although the caller activity goes away.
 155      */
 156     @Override
 157     public int onStartCommand(Intent intent, int flags, int startId) {
 158         Log_OC.d(TAG, "Starting command with id " + startId);
 159
 160         // WIP: for the moment, only SYNC_FOLDER is expected here;
 161         // the rest of the operations are requested through the Binder
 162         if (ACTION_SYNC_FOLDER.equals(intent.getAction())) {
 163
 164             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 165                 Log_OC.e(TAG, "Not enough information provided in intent");
 166                 return START_NOT_STICKY;
 167             }
 168             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 169             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 170
 171             Pair<Account, String> itemSyncKey =  new Pair<Account , String>(account, remotePath);
 172
 173             Pair<Target, RemoteOperation> itemToQueue = newOperation(intent);
 174             if (itemToQueue != null) {
 175                 mSyncFolderHandler.add(account, remotePath, (SynchronizeFolderOperation)itemToQueue.second);
 176                 Message msg = mSyncFolderHandler.obtainMessage();
 177                 msg.arg1 = startId;
 178                 msg.obj = itemSyncKey;
 179                 mSyncFolderHandler.sendMessage(msg);
 180             }
 181
 182         } else {
 183             Message msg = mOperationsHandler.obtainMessage();
 184             msg.arg1 = startId;
 185             mOperationsHandler.sendMessage(msg);
 186         }
 187
 188         return START_NOT_STICKY;
 189     }
 190
 191     @Override
 192     public void onDestroy() {
 193         Log_OC.v(TAG, "Destroying service" );
 194         // Saving cookies
 195         try {
 196             OwnCloudClientManagerFactory.getDefaultSingleton().
 197                 saveAllClients(this, MainApp.getAccountType());
 198
 199             // TODO - get rid of these exceptions
 200         } catch (AccountNotFoundException e) {
 201             e.printStackTrace();
 202         } catch (AuthenticatorException e) {
 203             e.printStackTrace();
 204         } catch (OperationCanceledException e) {
 205             e.printStackTrace();
 206         } catch (IOException e) {
 207             e.printStackTrace();
 208         }
 209
 210         mUndispatchedFinishedOperations.clear();
 211
 212         mOperationsBinder = null;
 213
 214         mOperationsHandler.getLooper().quit();
 215         mOperationsHandler = null;
 216
 217         mSyncFolderHandler.getLooper().quit();
 218         mSyncFolderHandler = null;
 219
 220         super.onDestroy();
 221     }
 222
 223     /**
 224      * Provides a binder object that clients can use to perform actions on the queue of operations,
 225      * except the addition of new operations.
 226      */
 227     @Override
 228     public IBinder onBind(Intent intent) {
 229         //Log_OC.wtf(TAG, "onBind" );
 230         return mOperationsBinder;
 231     }
 232
 233
 234     /**
 235      * Called when ALL the bound clients were unbound.
 236      */
 237     @Override
 238     public boolean onUnbind(Intent intent) {
 239         mOperationsBinder.clearListeners();
 240         return false;   // not accepting rebinding (default behaviour)
 241     }
 242
 243
 244     /**
 245      *  Binder to let client components to perform actions on the queue of operations.
 246      *
 247      *  It provides by itself the available operations.
 248      */
 249     public class OperationsServiceBinder extends Binder /* implements OnRemoteOperationListener */ {
 250
 251         /**
 252          * Map of listeners that will be reported about the end of operations from a {@link OperationsServiceBinder} instance
 253          */
 254         private ConcurrentMap<OnRemoteOperationListener, Handler> mBoundListeners =
 255                 new ConcurrentHashMap<OnRemoteOperationListener, Handler>();
 256
 257         private ServiceHandler mServiceHandler = null;
 258
 259         public OperationsServiceBinder(ServiceHandler serviceHandler) {
 260             mServiceHandler = serviceHandler;
 261         }
 262
 263
 264         /**
 265          * Cancels a pending or current synchronization.
 266          *
 267          * @param account       ownCloud account where the remote folder is stored.
 268          * @param file          A folder in the queue of pending synchronizations
 269          */
 270         public void cancel(Account account, OCFile file) {
 271             mSyncFolderHandler.cancel(account, file);
 272         }
 273
 274
 275         public void clearListeners() {
 276
 277             mBoundListeners.clear();
 278         }
 279
 280
 281         /**
 282          * Adds a listener interested in being reported about the end of operations.
 283          *
 284          * @param listener          Object to notify about the end of operations.
 285          * @param callbackHandler   {@link Handler} to access the listener without breaking Android threading protection.
 286          */
 287         public void addOperationListener (OnRemoteOperationListener listener, Handler callbackHandler) {
 288             synchronized (mBoundListeners) {
 289                 mBoundListeners.put(listener, callbackHandler);
 290             }
 291         }
 292
 293
 294         /**
 295          * Removes a listener from the list of objects interested in the being reported about the end of operations.
 296          *
 297          * @param listener      Object to notify about progress of transfer.
 298          */
 299         public void removeOperationListener (OnRemoteOperationListener listener) {
 300             synchronized (mBoundListeners) {
 301                 mBoundListeners.remove(listener);
 302             }
 303         }
 304
 305
 306         /**
 307          * TODO - IMPORTANT: update implementation when more operations are moved into the service
 308          *
 309          * @return  'True' when an operation that enforces the user to wait for completion is in process.
 310          */
 311         public boolean isPerformingBlockingOperation() {
 312             return (!mServiceHandler.mPendingOperations.isEmpty());
 313         }
 314
 315
 316         /**
 317          * Creates and adds to the queue a new operation, as described by operationIntent.
 318          *
 319          * Calls startService to make the operation is processed by the ServiceHandler.
 320          *
 321          * @param operationIntent       Intent describing a new operation to queue and execute.
 322          * @return                      Identifier of the operation created, or null if failed.
 323          */
 324         public long queueNewOperation(Intent operationIntent) {
 325             Pair<Target, RemoteOperation> itemToQueue = newOperation(operationIntent);
 326             if (itemToQueue != null) {
 327                 mServiceHandler.mPendingOperations.add(itemToQueue);
 328                 startService(new Intent(OperationsService.this, OperationsService.class));
 329                 return itemToQueue.second.hashCode();
 330
 331             } else {
 332                 return Long.MAX_VALUE;
 333             }
 334         }
 335
 336
 337         public boolean dispatchResultIfFinished(int operationId, OnRemoteOperationListener listener) {
 338             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 339                     mUndispatchedFinishedOperations.remove(operationId);
 340             if (undispatched != null) {
 341                 listener.onRemoteOperationFinish(undispatched.first, undispatched.second);
 342                 return true;
 343                 //Log_OC.wtf(TAG, "Sending callback later");
 344             } else {
 345                 if (!mServiceHandler.mPendingOperations.isEmpty()) {
 346                     return true;
 347                 } else {
 348                     return false;
 349                 }
 350                 //Log_OC.wtf(TAG, "Not finished yet");
 351             }
 352         }
 353
 354
 355         /**
 356          * Returns True when the file described by 'file' in the ownCloud account 'account' is downloading or waiting
 357          * to download.
 358          *
 359          * If 'file' is a directory, returns 'true' if some of its descendant files is downloading or waiting
 360          * to download.
 361          *
 362          * @param account       ownCloud account where the remote file is stored.
 363          * @param remotePath    Path of the folder to check if something is synchronizing / downloading / uploading
 364          *                      inside.
 365          */
 366         public boolean isSynchronizing(Account account, String remotePath) {
 367             return mSyncFolderHandler.isSynchronizing(account, remotePath);
 368         }
 369
 370     }
 371
 372
 373     /**
 374      * Operations worker. Performs the pending operations in the order they were requested.
 375      *
 376      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 377      */
 378     private static class ServiceHandler extends Handler {
 379         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 380
 381
 382         OperationsService mService;
 383
 384
 385         private ConcurrentLinkedQueue<Pair<Target, RemoteOperation>> mPendingOperations =
 386                 new ConcurrentLinkedQueue<Pair<Target, RemoteOperation>>();
 387         private RemoteOperation mCurrentOperation = null;
 388         private Target mLastTarget = null;
 389         private OwnCloudClient mOwnCloudClient = null;
 390         private FileDataStorageManager mStorageManager;
 391
 392
 393         public ServiceHandler(Looper looper, OperationsService service) {
 394             super(looper);
 395             if (service == null) {
 396                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 397             }
 398             mService = service;
 399         }
 400
 401         @Override
 402         public void handleMessage(Message msg) {
 403             nextOperation();
 404             Log_OC.d(TAG, "Stopping after command with id " + msg.arg1);
 405             mService.stopSelf(msg.arg1);
 406         }
 407
 408
 409         /**
 410          * Performs the next operation in the queue
 411          */
 412         private void nextOperation() {
 413
 414             //Log_OC.wtf(TAG, "nextOperation init" );
 415
 416             Pair<Target, RemoteOperation> next = null;
 417             synchronized(mPendingOperations) {
 418                 next = mPendingOperations.peek();
 419             }
 420
 421             if (next != null) {
 422
 423                 mCurrentOperation = next.second;
 424                 RemoteOperationResult result = null;
 425                 try {
 426                     /// prepare client object to send the request to the ownCloud server
 427                     if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 428                         mLastTarget = next.first;
 429                         if (mLastTarget.mAccount != null) {
 430                             OwnCloudAccount ocAccount = new OwnCloudAccount(mLastTarget.mAccount, mService);
 431                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 432                                     getClientFor(ocAccount, mService);
 433                             mStorageManager = new FileDataStorageManager(
 434                                     mLastTarget.mAccount,
 435                                     mService.getContentResolver()
 436                             );
 437                         } else {
 438                             OwnCloudCredentials credentials = null;
 439                             if (mLastTarget.mCookie != null &&
 440                                     mLastTarget.mCookie.length() > 0) {
 441                                 // just used for GetUserName
 442                                 // TODO refactor to run GetUserName as AsyncTask in the context of AuthenticatorActivity
 443                                 credentials = OwnCloudCredentialsFactory.newSamlSsoCredentials(
 444                                         mLastTarget.mCookie); // SAML SSO
 445                             }
 446                             OwnCloudAccount ocAccount = new OwnCloudAccount(
 447                                     mLastTarget.mServerUrl, credentials);
 448                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 449                                     getClientFor(ocAccount, mService);
 450                             mStorageManager = null;
 451                         }
 452                     }
 453
 454                     /// perform the operation
 455                     if (mCurrentOperation instanceof SyncOperation) {
 456                         result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient, mStorageManager);
 457                     } else {
 458                         result = mCurrentOperation.execute(mOwnCloudClient);
 459                     }
 460
 461                 } catch (AccountsException e) {
 462                     if (mLastTarget.mAccount == null) {
 463                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 464                     } else {
 465                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 466                     }
 467                     result = new RemoteOperationResult(e);
 468
 469                 } catch (IOException e) {
 470                     if (mLastTarget.mAccount == null) {
 471                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 472                     } else {
 473                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 474                     }
 475                     result = new RemoteOperationResult(e);
 476                 } catch (Exception e) {
 477                     if (mLastTarget.mAccount == null) {
 478                         Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 479                     } else {
 480                         Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 481                     }
 482                     result = new RemoteOperationResult(e);
 483
 484                 } finally {
 485                     synchronized(mPendingOperations) {
 486                         mPendingOperations.poll();
 487                     }
 488                 }
 489
 490                 //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 491                 mService.dispatchResultToOperationListeners(mCurrentOperation, result);
 492             }
 493         }
 494
 495
 496
 497     }
 498
 499
 500     /**
 501      * Creates a new operation, as described by operationIntent.
 502      *
 503      * TODO - move to ServiceHandler (probably)
 504      *
 505      * @param operationIntent       Intent describing a new operation to queue and execute.
 506      * @return                      Pair with the new operation object and the information about its target server.
 507      */
 508     private Pair<Target , RemoteOperation> newOperation(Intent operationIntent) {
 509         RemoteOperation operation = null;
 510         Target target = null;
 511         try {
 512             if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 513                     !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 514                 Log_OC.e(TAG, "Not enough information provided in intent");
 515
 516             } else {
 517                 Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 518                 String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 519                 String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 520                 target = new Target(
 521                         account,
 522                         (serverUrl == null) ? null : Uri.parse(serverUrl),
 523                         cookie
 524                 );
 525
 526                 String action = operationIntent.getAction();
 527                 if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 528                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 529                     String password = operationIntent.getStringExtra(EXTRA_PASSWORD_SHARE);
 530                     Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 531                     if (remotePath.length() > 0) {
 532                         operation = new CreateShareOperation(OperationsService.this, remotePath,
 533                                 ShareType.PUBLIC_LINK,
 534                                 "", false, password, 1, sendIntent);
 535                     }
 536
 537                 } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 538                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 539                     if (remotePath.length() > 0) {
 540                         operation = new UnshareLinkOperation(
 541                                 remotePath,
 542                                 OperationsService.this);
 543                     }
 544
 545                 } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 546                     // check OC server and get basic information from it
 547                     operation = new GetServerInfoOperation(serverUrl, OperationsService.this);
 548
 549                 } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 550                     /// GET ACCESS TOKEN to the OAuth server
 551                     String oauth2QueryParameters =
 552                             operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 553                     operation = new OAuth2GetAccessToken(
 554                             getString(R.string.oauth2_client_id),
 555                             getString(R.string.oauth2_redirect_uri),
 556                             getString(R.string.oauth2_grant_type),
 557                             oauth2QueryParameters);
 558
 559                 } else if (action.equals(ACTION_GET_USER_NAME)) {
 560                     // Get User Name
 561                     operation = new GetRemoteUserNameOperation();
 562
 563                 } else if (action.equals(ACTION_RENAME)) {
 564                     // Rename file or folder
 565                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 566                     String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 567                     operation = new RenameFileOperation(remotePath, newName);
 568
 569                 } else if (action.equals(ACTION_REMOVE)) {
 570                     // Remove file or folder
 571                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 572                     boolean onlyLocalCopy = operationIntent.getBooleanExtra(EXTRA_REMOVE_ONLY_LOCAL, false);
 573                     operation = new RemoveFileOperation(remotePath, onlyLocalCopy);
 574
 575                 } else if (action.equals(ACTION_CREATE_FOLDER)) {
 576                     // Create Folder
 577                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 578                     boolean createFullPath = operationIntent.getBooleanExtra(EXTRA_CREATE_FULL_PATH, true);
 579                     operation = new CreateFolderOperation(remotePath, createFullPath);
 580
 581                 } else if (action.equals(ACTION_SYNC_FILE)) {
 582                     // Sync file
 583                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 584                     boolean syncFileContents = operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 585                     operation = new SynchronizeFileOperation(
 586                             remotePath, account, syncFileContents, getApplicationContext()
 587                     );
 588
 589                 } else if (action.equals(ACTION_SYNC_FOLDER)) {
 590                     // Sync file
 591                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 592                     operation = new SynchronizeFolderOperation(
 593                             this,                       // TODO remove this dependency from construction time
 594                             remotePath,
 595                             account,
 596                             System.currentTimeMillis()  // TODO remove this dependency from construction time
 597                     );
 598
 599                 } else if (action.equals(ACTION_MOVE_FILE)) {
 600                     // Move file/folder
 601                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 602                     String newParentPath = operationIntent.getStringExtra(EXTRA_NEW_PARENT_PATH);
 603                     operation = new MoveFileOperation(remotePath,newParentPath,account);
 604                 }
 605
 606             }
 607
 608         } catch (IllegalArgumentException e) {
 609             Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 610             operation = null;
 611         }
 612
 613         if (operation != null) {
 614             return new Pair<Target , RemoteOperation>(target, operation);
 615         } else {
 616             return null;
 617         }
 618     }
 619
 620
 621     /**
 622      * Sends a broadcast when a new operation is added to the queue.
 623      *
 624      * Local broadcasts are only delivered to activities in the same process, but can't be done sticky :\
 625      *
 626      * @param target            Account or URL pointing to an OC server.
 627      * @param operation         Added operation.
 628      */
 629     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 630         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 631         if (target.mAccount != null) {
 632             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 633         } else {
 634             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 635         }
 636         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 637         //lbm.sendBroadcast(intent);
 638         sendStickyBroadcast(intent);
 639     }
 640
 641
 642     // TODO - maybe add a notification for real start of operations
 643
 644     /**
 645      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities can update their view
 646      *
 647      * Local broadcasts are only delivered to activities in the same process.
 648      *
 649      * @param target            Account or URL pointing to an OC server.
 650      * @param operation         Finished operation.
 651      * @param result            Result of the operation.
 652      */
 653     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation, RemoteOperationResult result) {
 654         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 655         intent.putExtra(EXTRA_RESULT, result);
 656         if (target.mAccount != null) {
 657             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 658         } else {
 659             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 660         }
 661         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 662         //lbm.sendBroadcast(intent);
 663         sendStickyBroadcast(intent);
 664     }
 665
 666
 667     /**
 668      * Notifies the currently subscribed listeners about the end of an operation.
 669      *
 670      * @param operation         Finished operation.
 671      * @param result            Result of the operation.
 672      */
 673     protected void dispatchResultToOperationListeners(
 674             final RemoteOperation operation, final RemoteOperationResult result
 675     ) {
 676         int count = 0;
 677         Iterator<OnRemoteOperationListener> listeners = mOperationsBinder.mBoundListeners.keySet().iterator();
 678         while (listeners.hasNext()) {
 679             final OnRemoteOperationListener listener = listeners.next();
 680             final Handler handler = mOperationsBinder.mBoundListeners.get(listener);
 681             if (handler != null) {
 682                 handler.post(new Runnable() {
 683                     @Override
 684                     public void run() {
 685                         listener.onRemoteOperationFinish(operation, result);
 686                     }
 687                 });
 688                 count += 1;
 689             }
 690         }
 691         if (count == 0) {
 692             //mOperationResults.put(operation.hashCode(), result);
 693             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 694                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 695             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 696         }
 697         Log_OC.d(TAG, "Called " + count + " listeners");
 698     }
 699 }