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.status.OwnCloudVersion;
  44 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  45 import com.owncloud.android.operations.common.SyncOperation;
  46 import com.owncloud.android.operations.CreateFolderOperation;
  47 import com.owncloud.android.operations.CreateShareOperation;
  48 import com.owncloud.android.operations.GetServerInfoOperation;
  49 import com.owncloud.android.operations.MoveFileOperation;
  50 import com.owncloud.android.operations.OAuth2GetAccessToken;
  51 import com.owncloud.android.operations.RemoveFileOperation;
  52 import com.owncloud.android.operations.RenameFileOperation;
  53 import com.owncloud.android.operations.SynchronizeFileOperation;
  54 import com.owncloud.android.operations.SynchronizeFolderOperation;
  55 import com.owncloud.android.operations.UnshareLinkOperation;
  56
  57 import android.accounts.Account;
  58 import android.accounts.AccountManager;
  59 import android.accounts.AccountsException;
  60 import android.accounts.AuthenticatorException;
  61 import android.accounts.OperationCanceledException;
  62 import android.app.Service;
  63 import android.content.Intent;
  64 import android.net.Uri;
  65 import android.os.Binder;
  66 import android.os.Handler;
  67 import android.os.HandlerThread;
  68 import android.os.IBinder;
  69 import android.os.Looper;
  70 import android.os.Message;
  71 import android.os.Process;
  72 import android.util.Pair;
  73
  74 public class OperationsService extends Service {
  75
  76     private static final String TAG = OperationsService.class.getSimpleName();
  77
  78     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  79     public static final String EXTRA_SERVER_URL = "SERVER_URL";
  80     public static final String EXTRA_OAUTH2_QUERY_PARAMETERS = "OAUTH2_QUERY_PARAMETERS";
  81     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  82     public static final String EXTRA_SEND_INTENT = "SEND_INTENT";
  83     public static final String EXTRA_NEWNAME = "NEWNAME";
  84     public static final String EXTRA_REMOVE_ONLY_LOCAL = "REMOVE_LOCAL_COPY";
  85     public static final String EXTRA_CREATE_FULL_PATH = "CREATE_FULL_PATH";
  86     public static final String EXTRA_SYNC_FILE_CONTENTS = "SYNC_FILE_CONTENTS";
  87     public static final String EXTRA_RESULT = "RESULT";
  88     public static final String EXTRA_NEW_PARENT_PATH = "NEW_PARENT_PATH";
  89     public static final String EXTRA_FILE = "FILE";
  90     public static final String EXTRA_PASSWORD_SHARE = "PASSWORD_SHARE";
  91
  92     public static final String EXTRA_COOKIE = "COOKIE";
  93
  94     public static final String ACTION_CREATE_SHARE = "CREATE_SHARE";
  95     public static final String ACTION_UNSHARE = "UNSHARE";
  96     public static final String ACTION_GET_SERVER_INFO = "GET_SERVER_INFO";
  97     public static final String ACTION_OAUTH2_GET_ACCESS_TOKEN = "OAUTH2_GET_ACCESS_TOKEN";
  98     public static final String ACTION_GET_USER_NAME = "GET_USER_NAME";
  99     public static final String ACTION_RENAME = "RENAME";
 100     public static final String ACTION_REMOVE = "REMOVE";
 101     public static final String ACTION_CREATE_FOLDER = "CREATE_FOLDER";
 102     public static final String ACTION_SYNC_FILE = "SYNC_FILE";
 103     public static final String ACTION_SYNC_FOLDER = "SYNC_FOLDER";//for the moment, just to download
 104     public static final String ACTION_MOVE_FILE = "MOVE_FILE";
 105
 106     public static final String ACTION_OPERATION_ADDED = OperationsService.class.getName() +
 107             ".OPERATION_ADDED";
 108     public static final String ACTION_OPERATION_FINISHED = OperationsService.class.getName() +
 109             ".OPERATION_FINISHED";
 110
 111
 112     private ConcurrentMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>
 113         mUndispatchedFinishedOperations =
 114             new ConcurrentHashMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>();
 115
 116     private static class Target {
 117         public Uri mServerUrl = null;
 118         public Account mAccount = null;
 119         public String mCookie = null;
 120
 121         public Target(Account account, Uri serverUrl, String cookie) {
 122             mAccount = account;
 123             mServerUrl = serverUrl;
 124             mCookie = cookie;
 125         }
 126     }
 127
 128     private ServiceHandler mOperationsHandler;
 129     private OperationsServiceBinder mOperationsBinder;
 130
 131     private SyncFolderHandler mSyncFolderHandler;
 132
 133     /**
 134      * Service initialization
 135      */
 136     @Override
 137     public void onCreate() {
 138         super.onCreate();
 139         Log_OC.d(TAG, "Creating service");
 140
 141         /// First worker thread for most of operations
 142         HandlerThread thread = new HandlerThread("Operations thread",
 143                 Process.THREAD_PRIORITY_BACKGROUND);
 144         thread.start();
 145         mOperationsHandler = new ServiceHandler(thread.getLooper(), this);
 146         mOperationsBinder = new OperationsServiceBinder(mOperationsHandler);
 147
 148         /// Separated worker thread for download of folders (WIP)
 149         thread = new HandlerThread("Syncfolder thread", Process.THREAD_PRIORITY_BACKGROUND);
 150         thread.start();
 151         mSyncFolderHandler = new SyncFolderHandler(thread.getLooper(), this);
 152     }
 153
 154
 155     /**
 156      * Entry point to add a new operation to the queue of operations.
 157      *
 158      * New operations are added calling to startService(), resulting in a call to this method.
 159      * This ensures the service will keep on working although the caller activity goes away.
 160      */
 161     @Override
 162     public int onStartCommand(Intent intent, int flags, int startId) {
 163         Log_OC.d(TAG, "Starting command with id " + startId);
 164
 165         // WIP: for the moment, only SYNC_FOLDER is expected here;
 166         // the rest of the operations are requested through the Binder
 167         if (ACTION_SYNC_FOLDER.equals(intent.getAction())) {
 168
 169             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 170                 Log_OC.e(TAG, "Not enough information provided in intent");
 171                 return START_NOT_STICKY;
 172             }
 173             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 174             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 175
 176             Pair<Account, String> itemSyncKey =  new Pair<Account , String>(account, remotePath);
 177
 178             Pair<Target, RemoteOperation> itemToQueue = newOperation(intent);
 179             if (itemToQueue != null) {
 180                 mSyncFolderHandler.add(account, remotePath,
 181                         (SynchronizeFolderOperation)itemToQueue.second);
 182                 Message msg = mSyncFolderHandler.obtainMessage();
 183                 msg.arg1 = startId;
 184                 msg.obj = itemSyncKey;
 185                 mSyncFolderHandler.sendMessage(msg);
 186             }
 187
 188         } else {
 189             Message msg = mOperationsHandler.obtainMessage();
 190             msg.arg1 = startId;
 191             mOperationsHandler.sendMessage(msg);
 192         }
 193
 194         return START_NOT_STICKY;
 195     }
 196
 197     @Override
 198     public void onDestroy() {
 199         Log_OC.v(TAG, "Destroying service" );
 200         // Saving cookies
 201         try {
 202             OwnCloudClientManagerFactory.getDefaultSingleton().
 203                 saveAllClients(this, MainApp.getAccountType());
 204
 205             // TODO - get rid of these exceptions
 206         } catch (AccountNotFoundException e) {
 207             e.printStackTrace();
 208         } catch (AuthenticatorException e) {
 209             e.printStackTrace();
 210         } catch (OperationCanceledException e) {
 211             e.printStackTrace();
 212         } catch (IOException e) {
 213             e.printStackTrace();
 214         }
 215
 216         mUndispatchedFinishedOperations.clear();
 217
 218         mOperationsBinder = null;
 219
 220         mOperationsHandler.getLooper().quit();
 221         mOperationsHandler = null;
 222
 223         mSyncFolderHandler.getLooper().quit();
 224         mSyncFolderHandler = null;
 225
 226         super.onDestroy();
 227     }
 228
 229     /**
 230      * Provides a binder object that clients can use to perform actions on the queue of operations,
 231      * except the addition of new operations.
 232      */
 233     @Override
 234     public IBinder onBind(Intent intent) {
 235         //Log_OC.wtf(TAG, "onBind" );
 236         return mOperationsBinder;
 237     }
 238
 239
 240     /**
 241      * Called when ALL the bound clients were unbound.
 242      */
 243     @Override
 244     public boolean onUnbind(Intent intent) {
 245         mOperationsBinder.clearListeners();
 246         return false;   // not accepting rebinding (default behaviour)
 247     }
 248
 249
 250     /**
 251      *  Binder to let client components to perform actions on the queue of operations.
 252      *
 253      *  It provides by itself the available operations.
 254      */
 255     public class OperationsServiceBinder extends Binder /* implements OnRemoteOperationListener */ {
 256
 257         /**
 258          * Map of listeners that will be reported about the end of operations from a
 259          * {@link OperationsServiceBinder} instance
 260          */
 261         private ConcurrentMap<OnRemoteOperationListener, Handler> mBoundListeners =
 262                 new ConcurrentHashMap<OnRemoteOperationListener, Handler>();
 263
 264         private ServiceHandler mServiceHandler = null;
 265
 266         public OperationsServiceBinder(ServiceHandler serviceHandler) {
 267             mServiceHandler = serviceHandler;
 268         }
 269
 270
 271         /**
 272          * Cancels a pending or current synchronization.
 273          *
 274          * @param account       ownCloud account where the remote folder is stored.
 275          * @param file          A folder in the queue of pending synchronizations
 276          */
 277         public void cancel(Account account, OCFile file) {
 278             mSyncFolderHandler.cancel(account, file);
 279         }
 280
 281
 282         public void clearListeners() {
 283
 284             mBoundListeners.clear();
 285         }
 286
 287
 288         /**
 289          * Adds a listener interested in being reported about the end of operations.
 290          *
 291          * @param listener          Object to notify about the end of operations.
 292          * @param callbackHandler   {@link Handler} to access the listener without
 293          *                                         breaking Android threading protection.
 294          */
 295         public void addOperationListener (OnRemoteOperationListener listener,
 296                                           Handler callbackHandler) {
 297             synchronized (mBoundListeners) {
 298                 mBoundListeners.put(listener, callbackHandler);
 299             }
 300         }
 301
 302
 303         /**
 304          * Removes a listener from the list of objects interested in the being reported about
 305          * the end of operations.
 306          *
 307          * @param listener      Object to notify about progress of transfer.
 308          */
 309         public void removeOperationListener (OnRemoteOperationListener listener) {
 310             synchronized (mBoundListeners) {
 311                 mBoundListeners.remove(listener);
 312             }
 313         }
 314
 315
 316         /**
 317          * TODO - IMPORTANT: update implementation when more operations are moved into the service
 318          *
 319          * @return  'True' when an operation that enforces the user to wait for completion is
 320          *          in process.
 321          */
 322         public boolean isPerformingBlockingOperation() {
 323             return (!mServiceHandler.mPendingOperations.isEmpty());
 324         }
 325
 326
 327         /**
 328          * Creates and adds to the queue a new operation, as described by operationIntent.
 329          *
 330          * Calls startService to make the operation is processed by the ServiceHandler.
 331          *
 332          * @param operationIntent       Intent describing a new operation to queue and execute.
 333          * @return                      Identifier of the operation created, or null if failed.
 334          */
 335         public long queueNewOperation(Intent operationIntent) {
 336             Pair<Target, RemoteOperation> itemToQueue = newOperation(operationIntent);
 337             if (itemToQueue != null) {
 338                 mServiceHandler.mPendingOperations.add(itemToQueue);
 339                 startService(new Intent(OperationsService.this, OperationsService.class));
 340                 return itemToQueue.second.hashCode();
 341
 342             } else {
 343                 return Long.MAX_VALUE;
 344             }
 345         }
 346
 347
 348         public boolean dispatchResultIfFinished(int operationId,
 349                                                 OnRemoteOperationListener listener) {
 350             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 351                     mUndispatchedFinishedOperations.remove(operationId);
 352             if (undispatched != null) {
 353                 listener.onRemoteOperationFinish(undispatched.first, undispatched.second);
 354                 return true;
 355                 //Log_OC.wtf(TAG, "Sending callback later");
 356             } else {
 357                 return (!mServiceHandler.mPendingOperations.isEmpty());
 358             }
 359         }
 360
 361
 362         /**
 363          * Returns True when the file described by 'file' in the ownCloud account 'account' is
 364          * downloading or waiting to download.
 365          *
 366          * If 'file' is a directory, returns 'true' if some of its descendant files is downloading
 367          * or waiting to download.
 368          *
 369          * @param account       ownCloud account where the remote file is stored.
 370          * @param remotePath    Path of the folder to check if something is synchronizing
 371          *                      / downloading / uploading inside.
 372          */
 373         public boolean isSynchronizing(Account account, String remotePath) {
 374             return mSyncFolderHandler.isSynchronizing(account, remotePath);
 375         }
 376
 377     }
 378
 379
 380     /**
 381      * Operations worker. Performs the pending operations in the order they were requested.
 382      *
 383      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 384      */
 385     private static class ServiceHandler extends Handler {
 386         // don't make it a final class, and don't remove the static ; lint will warn about a p
 387         // ossible memory leak
 388
 389
 390         OperationsService mService;
 391
 392
 393         private ConcurrentLinkedQueue<Pair<Target, RemoteOperation>> mPendingOperations =
 394                 new ConcurrentLinkedQueue<Pair<Target, RemoteOperation>>();
 395         private RemoteOperation mCurrentOperation = null;
 396         private Target mLastTarget = null;
 397         private OwnCloudClient mOwnCloudClient = null;
 398         private FileDataStorageManager mStorageManager;
 399
 400
 401         public ServiceHandler(Looper looper, OperationsService service) {
 402             super(looper);
 403             if (service == null) {
 404                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 405             }
 406             mService = service;
 407         }
 408
 409         @Override
 410         public void handleMessage(Message msg) {
 411             nextOperation();
 412             Log_OC.d(TAG, "Stopping after command with id " + msg.arg1);
 413             mService.stopSelf(msg.arg1);
 414         }
 415
 416
 417         /**
 418          * Performs the next operation in the queue
 419          */
 420         private void nextOperation() {
 421
 422             //Log_OC.wtf(TAG, "nextOperation init" );
 423
 424             Pair<Target, RemoteOperation> next = null;
 425             synchronized(mPendingOperations) {
 426                 next = mPendingOperations.peek();
 427             }
 428
 429             if (next != null) {
 430
 431                 mCurrentOperation = next.second;
 432                 RemoteOperationResult result = null;
 433                 try {
 434                     /// prepare client object to send the request to the ownCloud server
 435                     if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 436                         mLastTarget = next.first;
 437                         if (mLastTarget.mAccount != null) {
 438                             OwnCloudAccount ocAccount = new OwnCloudAccount(mLastTarget.mAccount,
 439                                     mService);
 440                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 441                                     getClientFor(ocAccount, mService);
 442
 443                             OwnCloudVersion version = com.owncloud.android.authentication.AccountUtils.getServerVersion(
 444                                     mLastTarget.mAccount
 445                             );
 446                             mOwnCloudClient.setOwnCloudVersion(version);
 447
 448                             mStorageManager = new FileDataStorageManager(
 449                                     mLastTarget.mAccount,
 450                                     mService.getContentResolver()
 451                             );
 452                         } else {
 453                             OwnCloudCredentials credentials = null;
 454                             if (mLastTarget.mCookie != null &&
 455                                     mLastTarget.mCookie.length() > 0) {
 456                                 // just used for GetUserName
 457                                 // TODO refactor to run GetUserName as AsyncTask in the context of
 458                                 // AuthenticatorActivity
 459                                 credentials = OwnCloudCredentialsFactory.newSamlSsoCredentials(
 460                                         null,                   // unknown
 461                                         mLastTarget.mCookie);   // SAML SSO
 462                             }
 463                             OwnCloudAccount ocAccount = new OwnCloudAccount(
 464                                     mLastTarget.mServerUrl, credentials);
 465                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 466                                     getClientFor(ocAccount, mService);
 467                             mStorageManager = null;
 468                         }
 469                     }
 470
 471                     /// perform the operation
 472                     if (mCurrentOperation instanceof SyncOperation) {
 473                         result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient,
 474                                 mStorageManager);
 475                     } else {
 476                         result = mCurrentOperation.execute(mOwnCloudClient);
 477                     }
 478
 479                 } catch (AccountsException e) {
 480                     if (mLastTarget.mAccount == null) {
 481                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account",
 482                                 e);
 483                     } else {
 484                         Log_OC.e(TAG, "Error while trying to get authorization for " +
 485                                 mLastTarget.mAccount.name, e);
 486                     }
 487                     result = new RemoteOperationResult(e);
 488
 489                 } catch (IOException e) {
 490                     if (mLastTarget.mAccount == null) {
 491                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account",
 492                                 e);
 493                     } else {
 494                         Log_OC.e(TAG, "Error while trying to get authorization for " +
 495                                 mLastTarget.mAccount.name, e);
 496                     }
 497                     result = new RemoteOperationResult(e);
 498                 } catch (Exception e) {
 499                     if (mLastTarget.mAccount == null) {
 500                         Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 501                     } else {
 502                         Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 503                     }
 504                     result = new RemoteOperationResult(e);
 505
 506                 } finally {
 507                     synchronized(mPendingOperations) {
 508                         mPendingOperations.poll();
 509                     }
 510                 }
 511
 512                 //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 513                 mService.dispatchResultToOperationListeners(mCurrentOperation, result);
 514             }
 515         }
 516
 517
 518
 519     }
 520
 521
 522     /**
 523      * Creates a new operation, as described by operationIntent.
 524      *
 525      * TODO - move to ServiceHandler (probably)
 526      *
 527      * @param operationIntent       Intent describing a new operation to queue and execute.
 528      * @return                      Pair with the new operation object and the information about its
 529      *                              target server.
 530      */
 531     private Pair<Target , RemoteOperation> newOperation(Intent operationIntent) {
 532         RemoteOperation operation = null;
 533         Target target = null;
 534         try {
 535             if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 536                     !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 537                 Log_OC.e(TAG, "Not enough information provided in intent");
 538
 539             } else {
 540                 Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 541                 String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 542                 String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 543                 target = new Target(
 544                         account,
 545                         (serverUrl == null) ? null : Uri.parse(serverUrl),
 546                         cookie
 547                 );
 548
 549                 String action = operationIntent.getAction();
 550                 if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 551                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 552                     String password = operationIntent.getStringExtra(EXTRA_PASSWORD_SHARE);
 553                     Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 554                     if (remotePath.length() > 0) {
 555                         operation = new CreateShareOperation(OperationsService.this, remotePath,
 556                                 ShareType.PUBLIC_LINK,
 557                                 "", false, password, 1, sendIntent);
 558                     }
 559
 560                 } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 561                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 562                     if (remotePath.length() > 0) {
 563                         operation = new UnshareLinkOperation(
 564                                 remotePath,
 565                                 OperationsService.this);
 566                     }
 567
 568                 } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 569                     // check OC server and get basic information from it
 570                     operation = new GetServerInfoOperation(serverUrl, OperationsService.this);
 571
 572                 } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 573                     /// GET ACCESS TOKEN to the OAuth server
 574                     String oauth2QueryParameters =
 575                             operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 576                     operation = new OAuth2GetAccessToken(
 577                             getString(R.string.oauth2_client_id),
 578                             getString(R.string.oauth2_redirect_uri),
 579                             getString(R.string.oauth2_grant_type),
 580                             oauth2QueryParameters);
 581
 582                 } else if (action.equals(ACTION_GET_USER_NAME)) {
 583                     // Get User Name
 584                     operation = new GetRemoteUserNameOperation();
 585
 586                 } else if (action.equals(ACTION_RENAME)) {
 587                     // Rename file or folder
 588                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 589                     String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 590                     operation = new RenameFileOperation(remotePath, newName);
 591
 592                 } else if (action.equals(ACTION_REMOVE)) {
 593                     // Remove file or folder
 594                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 595                     boolean onlyLocalCopy = operationIntent.getBooleanExtra(EXTRA_REMOVE_ONLY_LOCAL,
 596                             false);
 597                     operation = new RemoveFileOperation(remotePath, onlyLocalCopy);
 598
 599                 } else if (action.equals(ACTION_CREATE_FOLDER)) {
 600                     // Create Folder
 601                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 602                     boolean createFullPath = operationIntent.getBooleanExtra(EXTRA_CREATE_FULL_PATH,
 603                             true);
 604                     operation = new CreateFolderOperation(remotePath, createFullPath);
 605
 606                 } else if (action.equals(ACTION_SYNC_FILE)) {
 607                     // Sync file
 608                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 609                     boolean syncFileContents =
 610                             operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 611                     operation = new SynchronizeFileOperation(
 612                             remotePath, account, syncFileContents, getApplicationContext()
 613                     );
 614
 615                 } else if (action.equals(ACTION_SYNC_FOLDER)) {
 616                     // Sync file
 617                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 618                     operation = new SynchronizeFolderOperation(
 619                             this,                       // TODO remove this dependency from construction time
 620                             remotePath,
 621                             account,
 622                             System.currentTimeMillis()  // TODO remove this dependency from construction time
 623                     );
 624
 625                 } else if (action.equals(ACTION_MOVE_FILE)) {
 626                     // Move file/folder
 627                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 628                     String newParentPath = operationIntent.getStringExtra(EXTRA_NEW_PARENT_PATH);
 629                     operation = new MoveFileOperation(remotePath,newParentPath,account);
 630                 }
 631
 632             }
 633
 634         } catch (IllegalArgumentException e) {
 635             Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 636             operation = null;
 637         }
 638
 639         if (operation != null) {
 640             return new Pair<Target , RemoteOperation>(target, operation);
 641         } else {
 642             return null;
 643         }
 644     }
 645
 646
 647     /**
 648      * Sends a broadcast when a new operation is added to the queue.
 649      *
 650      * Local broadcasts are only delivered to activities in the same process, but can't be
 651      * done sticky :\
 652      *
 653      * @param target            Account or URL pointing to an OC server.
 654      * @param operation         Added operation.
 655      */
 656     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 657         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 658         if (target.mAccount != null) {
 659             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 660         } else {
 661             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 662         }
 663         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 664         //lbm.sendBroadcast(intent);
 665         sendStickyBroadcast(intent);
 666     }
 667
 668
 669     // TODO - maybe add a notification for real start of operations
 670
 671     /**
 672      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities c
 673      * an update their view
 674      *
 675      * Local broadcasts are only delivered to activities in the same process.
 676      *
 677      * @param target            Account or URL pointing to an OC server.
 678      * @param operation         Finished operation.
 679      * @param result            Result of the operation.
 680      */
 681     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation,
 682                                                 RemoteOperationResult result) {
 683         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 684         intent.putExtra(EXTRA_RESULT, result);
 685         if (target.mAccount != null) {
 686             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 687         } else {
 688             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 689         }
 690         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 691         //lbm.sendBroadcast(intent);
 692         sendStickyBroadcast(intent);
 693     }
 694
 695
 696     /**
 697      * Notifies the currently subscribed listeners about the end of an operation.
 698      *
 699      * @param operation         Finished operation.
 700      * @param result            Result of the operation.
 701      */
 702     protected void dispatchResultToOperationListeners(
 703             final RemoteOperation operation, final RemoteOperationResult result
 704     ) {
 705         int count = 0;
 706         Iterator<OnRemoteOperationListener> listeners =
 707                 mOperationsBinder.mBoundListeners.keySet().iterator();
 708         while (listeners.hasNext()) {
 709             final OnRemoteOperationListener listener = listeners.next();
 710             final Handler handler = mOperationsBinder.mBoundListeners.get(listener);
 711             if (handler != null) {
 712                 handler.post(new Runnable() {
 713                     @Override
 714                     public void run() {
 715                         listener.onRemoteOperationFinish(operation, result);
 716                     }
 717                 });
 718                 count += 1;
 719             }
 720         }
 721         if (count == 0) {
 722             //mOperationResults.put(operation.hashCode(), result);
 723             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 724                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 725             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 726         }
 727         Log_OC.d(TAG, "Called " + count + " listeners");
 728     }
 729 }