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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012-2014 ownCloud Inc.
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License version 2,
   6  *   as published by the Free Software Foundation.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  *
  13  *   You should have received a copy of the GNU General Public License
  14  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  */
  17
  18 package com.owncloud.android.services;
  19
  20 import java.io.IOException;
  21 import java.util.Iterator;
  22 import java.util.concurrent.ConcurrentHashMap;
  23 import java.util.concurrent.ConcurrentLinkedQueue;
  24 import java.util.concurrent.ConcurrentMap;
  25
  26 import com.owncloud.android.MainApp;
  27 import com.owncloud.android.R;
  28 import com.owncloud.android.datamodel.FileDataStorageManager;
  29 import com.owncloud.android.lib.common.OwnCloudAccount;
  30 import com.owncloud.android.lib.common.OwnCloudClient;
  31 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  32 import com.owncloud.android.lib.common.OwnCloudCredentials;
  33 import com.owncloud.android.lib.common.OwnCloudCredentialsFactory;
  34 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  35 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  36 import com.owncloud.android.lib.common.operations.RemoteOperation;
  37 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  38 import com.owncloud.android.lib.common.utils.Log_OC;
  39 import com.owncloud.android.lib.resources.files.ExistenceCheckRemoteOperation;
  40 import com.owncloud.android.lib.resources.shares.ShareType;
  41 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  42 import com.owncloud.android.operations.common.SyncOperation;
  43 import com.owncloud.android.operations.CreateFolderOperation;
  44 import com.owncloud.android.operations.CreateShareOperation;
  45 import com.owncloud.android.operations.GetServerInfoOperation;
  46 import com.owncloud.android.operations.MoveFileOperation;
  47 import com.owncloud.android.operations.OAuth2GetAccessToken;
  48 import com.owncloud.android.operations.RemoveFileOperation;
  49 import com.owncloud.android.operations.RenameFileOperation;
  50 import com.owncloud.android.operations.SynchronizeFileOperation;
  51 import com.owncloud.android.operations.SynchronizeFolderOperation;
  52 import com.owncloud.android.operations.UnshareLinkOperation;
  53
  54 import android.accounts.Account;
  55 import android.accounts.AccountsException;
  56 import android.accounts.AuthenticatorException;
  57 import android.accounts.OperationCanceledException;
  58 import android.app.Service;
  59 import android.content.Intent;
  60 import android.net.Uri;
  61 import android.os.Binder;
  62 import android.os.Handler;
  63 import android.os.HandlerThread;
  64 import android.os.IBinder;
  65 import android.os.Looper;
  66 import android.os.Message;
  67 import android.os.Process;
  68 import android.util.Pair;
  69
  70 public class OperationsService extends Service {
  71
  72     private static final String TAG = OperationsService.class.getSimpleName();
  73
  74     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  75     public static final String EXTRA_SERVER_URL = "SERVER_URL";
  76     public static final String EXTRA_OAUTH2_QUERY_PARAMETERS = "OAUTH2_QUERY_PARAMETERS";
  77     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  78     public static final String EXTRA_SEND_INTENT = "SEND_INTENT";
  79     public static final String EXTRA_NEWNAME = "NEWNAME";
  80     public static final String EXTRA_REMOVE_ONLY_LOCAL = "REMOVE_LOCAL_COPY";
  81     public static final String EXTRA_CREATE_FULL_PATH = "CREATE_FULL_PATH";
  82     public static final String EXTRA_SYNC_FILE_CONTENTS = "SYNC_FILE_CONTENTS";
  83     public static final String EXTRA_RESULT = "RESULT";
  84     public static final String EXTRA_NEW_PARENT_PATH = "NEW_PARENT_PATH";
  85
  86     // TODO review if ALL OF THEM are necessary
  87     public static final String EXTRA_SUCCESS_IF_ABSENT = "SUCCESS_IF_ABSENT";
  88     public static final String EXTRA_USERNAME = "USERNAME";
  89     public static final String EXTRA_PASSWORD = "PASSWORD";
  90     public static final String EXTRA_AUTH_TOKEN = "AUTH_TOKEN";
  91     public static final String EXTRA_COOKIE = "COOKIE";
  92
  93     public static final String ACTION_CREATE_SHARE = "CREATE_SHARE";
  94     public static final String ACTION_UNSHARE = "UNSHARE";
  95     public static final String ACTION_GET_SERVER_INFO = "GET_SERVER_INFO";
  96     public static final String ACTION_OAUTH2_GET_ACCESS_TOKEN = "OAUTH2_GET_ACCESS_TOKEN";
  97     public static final String ACTION_EXISTENCE_CHECK = "EXISTENCE_CHECK";
  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() + ".OPERATION_ADDED";
 107     public static final String ACTION_OPERATION_FINISHED = OperationsService.class.getName() + ".OPERATION_FINISHED";
 108
 109
 110     private ConcurrentLinkedQueue<Pair<Target, RemoteOperation>> mPendingOperations =
 111             new ConcurrentLinkedQueue<Pair<Target, RemoteOperation>>();
 112
 113     private ConcurrentMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>
 114         mUndispatchedFinishedOperations =
 115             new ConcurrentHashMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>();
 116
 117     private static class Target {
 118         public Uri mServerUrl = null;
 119         public Account mAccount = null;
 120         public String mUsername = null;
 121         public String mPassword = null;
 122         public String mAuthToken = null;
 123         public String mCookie = null;
 124
 125         public Target(Account account, Uri serverUrl, String username, String password, String authToken,
 126                 String cookie) {
 127             mAccount = account;
 128             mServerUrl = serverUrl;
 129             mUsername = username;
 130             mPassword = password;
 131             mAuthToken = authToken;
 132             mCookie = cookie;
 133         }
 134     }
 135
 136     private Looper mServiceLooper;
 137     private ServiceHandler mServiceHandler;
 138     private OperationsServiceBinder mBinder;
 139     private OwnCloudClient mOwnCloudClient = null;
 140     private Target mLastTarget = null;
 141     private FileDataStorageManager mStorageManager;
 142     private RemoteOperation mCurrentOperation = null;
 143
 144
 145     /**
 146      * Service initialization
 147      */
 148     @Override
 149     public void onCreate() {
 150         super.onCreate();
 151         HandlerThread thread = new HandlerThread("Operations service thread", Process.THREAD_PRIORITY_BACKGROUND);
 152         thread.start();
 153         mServiceLooper = thread.getLooper();
 154         mServiceHandler = new ServiceHandler(mServiceLooper, this);
 155         mBinder = new OperationsServiceBinder();
 156     }
 157
 158
 159     /**
 160      * Entry point to add a new operation to the queue of operations.
 161      *
 162      * New operations are added calling to startService(), resulting in a call to this method.
 163      * This ensures the service will keep on working although the caller activity goes away.
 164      */
 165     @Override
 166     public int onStartCommand(Intent intent, int flags, int startId) {
 167         if (ACTION_SYNC_FOLDER.equals(intent.getAction())) {
 168             // WIP: for the moment, only SYNC_FOLDER is expected here; the rest of the operations are requested through
 169             // the Binder
 170             Pair<Target, RemoteOperation> itemToQueue = newOperation(intent);
 171             if (itemToQueue != null) {
 172                 mPendingOperations.add(itemToQueue);
 173             }
 174         }
 175
 176         Message msg = mServiceHandler.obtainMessage();
 177         msg.arg1 = startId;
 178         mServiceHandler.sendMessage(msg);
 179         return START_NOT_STICKY;
 180     }
 181
 182     @Override
 183     public void onDestroy() {
 184         //Log_OC.wtf(TAG, "onDestroy init" );
 185         // Saving cookies
 186         try {
 187             OwnCloudClientManagerFactory.getDefaultSingleton().
 188                 saveAllClients(this, MainApp.getAccountType());
 189
 190             // TODO - get rid of these exceptions
 191         } catch (AccountNotFoundException e) {
 192             e.printStackTrace();
 193         } catch (AuthenticatorException e) {
 194             e.printStackTrace();
 195         } catch (OperationCanceledException e) {
 196             e.printStackTrace();
 197         } catch (IOException e) {
 198             e.printStackTrace();
 199         }
 200
 201         //Log_OC.wtf(TAG, "Clear mUndispatchedFinisiedOperations" );
 202         mUndispatchedFinishedOperations.clear();
 203
 204         //Log_OC.wtf(TAG, "onDestroy end" );
 205         super.onDestroy();
 206     }
 207
 208
 209     /**
 210      * Provides a binder object that clients can use to perform actions on the queue of operations,
 211      * except the addition of new operations.
 212      */
 213     @Override
 214     public IBinder onBind(Intent intent) {
 215         //Log_OC.wtf(TAG, "onBind" );
 216         return mBinder;
 217     }
 218
 219
 220     /**
 221      * Called when ALL the bound clients were unbound.
 222      */
 223     @Override
 224     public boolean onUnbind(Intent intent) {
 225         ((OperationsServiceBinder)mBinder).clearListeners();
 226         return false;   // not accepting rebinding (default behaviour)
 227     }
 228
 229
 230     /**
 231      *  Binder to let client components to perform actions on the queue of operations.
 232      *
 233      *  It provides by itself the available operations.
 234      */
 235     public class OperationsServiceBinder extends Binder /* implements OnRemoteOperationListener */ {
 236
 237         /**
 238          * Map of listeners that will be reported about the end of operations from a {@link OperationsServiceBinder} instance
 239          */
 240         private ConcurrentMap<OnRemoteOperationListener, Handler> mBoundListeners =
 241                 new ConcurrentHashMap<OnRemoteOperationListener, Handler>();
 242
 243         /**
 244          * Cancels an operation
 245          *
 246          * TODO
 247          */
 248         public void cancel() {
 249             // TODO
 250         }
 251
 252
 253         public void clearListeners() {
 254
 255             mBoundListeners.clear();
 256         }
 257
 258
 259         /**
 260          * Adds a listener interested in being reported about the end of operations.
 261          *
 262          * @param listener          Object to notify about the end of operations.
 263          * @param callbackHandler   {@link Handler} to access the listener without breaking Android threading protection.
 264          */
 265         public void addOperationListener (OnRemoteOperationListener listener, Handler callbackHandler) {
 266             synchronized (mBoundListeners) {
 267                 mBoundListeners.put(listener, callbackHandler);
 268             }
 269         }
 270
 271
 272         /**
 273          * Removes a listener from the list of objects interested in the being reported about the end of operations.
 274          *
 275          * @param listener      Object to notify about progress of transfer.
 276          */
 277         public void removeOperationListener (OnRemoteOperationListener listener) {
 278             synchronized (mBoundListeners) {
 279                 mBoundListeners.remove(listener);
 280             }
 281         }
 282
 283
 284         /**
 285          * TODO - IMPORTANT: update implementation when more operations are moved into the service
 286          *
 287          * @return  'True' when an operation that enforces the user to wait for completion is in process.
 288          */
 289         public boolean isPerformingBlockingOperation() {
 290             return (!mPendingOperations.isEmpty());
 291         }
 292
 293
 294         /**
 295          * Creates and adds to the queue a new operation, as described by operationIntent.
 296          *
 297          * Calls startService to make the operation is processed by the ServiceHandler.
 298          *
 299          * @param operationIntent       Intent describing a new operation to queue and execute.
 300          * @return                      Identifier of the operation created, or null if failed.
 301          */
 302         public long queueNewOperation(Intent operationIntent) {
 303             Pair<Target, RemoteOperation> itemToQueue = newOperation(operationIntent);
 304             if (itemToQueue != null) {
 305                 mPendingOperations.add(itemToQueue);
 306                 startService(new Intent(OperationsService.this, OperationsService.class));
 307                 return itemToQueue.second.hashCode();
 308
 309             } else {
 310                 return Long.MAX_VALUE;
 311             }
 312         }
 313
 314
 315         public boolean dispatchResultIfFinished(int operationId, OnRemoteOperationListener listener) {
 316             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 317                     mUndispatchedFinishedOperations.remove(operationId);
 318             if (undispatched != null) {
 319                 listener.onRemoteOperationFinish(undispatched.first, undispatched.second);
 320                 return true;
 321                 //Log_OC.wtf(TAG, "Sending callback later");
 322             } else {
 323                 if (!mPendingOperations.isEmpty()) {
 324                     return true;
 325                 } else {
 326                     return false;
 327                 }
 328                 //Log_OC.wtf(TAG, "Not finished yet");
 329             }
 330         }
 331
 332     }
 333
 334
 335     /**
 336      * Operations worker. Performs the pending operations in the order they were requested.
 337      *
 338      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 339      */
 340     private static class ServiceHandler extends Handler {
 341         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 342         OperationsService mService;
 343         public ServiceHandler(Looper looper, OperationsService service) {
 344             super(looper);
 345             if (service == null) {
 346                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 347             }
 348             mService = service;
 349         }
 350
 351         @Override
 352         public void handleMessage(Message msg) {
 353             mService.nextOperation();
 354             mService.stopSelf(msg.arg1);
 355         }
 356     }
 357
 358
 359     /**
 360      * Creates a new operation, as described by operationIntent.
 361      *
 362      * @param operationIntent       Intent describing a new operation to queue and execute.
 363      * @return                      Pair with the new operation object and the information about its target server.
 364      */
 365     private Pair<Target , RemoteOperation> newOperation(Intent operationIntent) {
 366         RemoteOperation operation = null;
 367         Target target = null;
 368         try {
 369             if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 370                     !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 371                 Log_OC.e(TAG, "Not enough information provided in intent");
 372
 373             } else {
 374                 Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 375                 String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 376                 String username = operationIntent.getStringExtra(EXTRA_USERNAME);
 377                 String password = operationIntent.getStringExtra(EXTRA_PASSWORD);
 378                 String authToken = operationIntent.getStringExtra(EXTRA_AUTH_TOKEN);
 379                 String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 380                 target = new Target(
 381                         account,
 382                         (serverUrl == null) ? null : Uri.parse(serverUrl),
 383                         username,
 384                         password,
 385                         authToken,
 386                         cookie
 387                 );
 388
 389                 String action = operationIntent.getAction();
 390                 if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 391                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 392                     Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 393                     if (remotePath.length() > 0) {
 394                         operation = new CreateShareOperation(remotePath, ShareType.PUBLIC_LINK,
 395                                 "", false, "", 1, sendIntent);
 396                     }
 397
 398                 } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 399                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 400                     if (remotePath.length() > 0) {
 401                         operation = new UnshareLinkOperation(
 402                                 remotePath,
 403                                 OperationsService.this);
 404                     }
 405
 406                 } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 407                     // check OC server and get basic information from it
 408                     operation = new GetServerInfoOperation(serverUrl, OperationsService.this);
 409
 410                 } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 411                     /// GET ACCESS TOKEN to the OAuth server
 412                     String oauth2QueryParameters =
 413                             operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 414                     operation = new OAuth2GetAccessToken(
 415                             getString(R.string.oauth2_client_id),
 416                             getString(R.string.oauth2_redirect_uri),
 417                             getString(R.string.oauth2_grant_type),
 418                             oauth2QueryParameters);
 419
 420                 } else if (action.equals(ACTION_EXISTENCE_CHECK)) {
 421                     // Existence Check
 422                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 423                     boolean successIfAbsent = operationIntent.getBooleanExtra(EXTRA_SUCCESS_IF_ABSENT, false);
 424                     operation = new ExistenceCheckRemoteOperation(remotePath, OperationsService.this, successIfAbsent);
 425
 426                 } else if (action.equals(ACTION_GET_USER_NAME)) {
 427                     // Get User Name
 428                     operation = new GetRemoteUserNameOperation();
 429
 430                 } else if (action.equals(ACTION_RENAME)) {
 431                     // Rename file or folder
 432                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 433                     String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 434                     operation = new RenameFileOperation(remotePath, newName);
 435
 436                 } else if (action.equals(ACTION_REMOVE)) {
 437                     // Remove file or folder
 438                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 439                     boolean onlyLocalCopy = operationIntent.getBooleanExtra(EXTRA_REMOVE_ONLY_LOCAL, false);
 440                     operation = new RemoveFileOperation(remotePath, onlyLocalCopy);
 441
 442                 } else if (action.equals(ACTION_CREATE_FOLDER)) {
 443                     // Create Folder
 444                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 445                     boolean createFullPath = operationIntent.getBooleanExtra(EXTRA_CREATE_FULL_PATH, true);
 446                     operation = new CreateFolderOperation(remotePath, createFullPath);
 447
 448                 } else if (action.equals(ACTION_SYNC_FILE)) {
 449                     // Sync file
 450                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 451                     boolean syncFileContents = operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 452                     operation = new SynchronizeFileOperation(
 453                             remotePath, account, syncFileContents, getApplicationContext()
 454                     );
 455
 456                 } else if (action.equals(ACTION_SYNC_FOLDER)) {
 457                     // Sync file
 458                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 459                     boolean syncFileContents = operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 460                     operation = new SynchronizeFolderOperation(
 461                             this,                       // TODO remove this dependency from construction time
 462                             remotePath,
 463                             account,
 464                             System.currentTimeMillis()  // TODO remove this dependency from construction time
 465                     );
 466
 467                 } else if (action.equals(ACTION_MOVE_FILE)) {
 468                     // Move file/folder
 469                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 470                     String newParentPath = operationIntent.getStringExtra(EXTRA_NEW_PARENT_PATH);
 471                     operation = new MoveFileOperation(remotePath,newParentPath,account);
 472                 }
 473
 474             }
 475
 476         } catch (IllegalArgumentException e) {
 477             Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 478             operation = null;
 479         }
 480
 481         if (operation != null) {
 482             return new Pair<Target , RemoteOperation>(target, operation);
 483         } else {
 484             return null;
 485         }
 486     }
 487
 488
 489     /**
 490      * Performs the next operation in the queue
 491      */
 492     private void nextOperation() {
 493
 494         //Log_OC.wtf(TAG, "nextOperation init" );
 495
 496         Pair<Target, RemoteOperation> next = null;
 497         synchronized(mPendingOperations) {
 498             next = mPendingOperations.peek();
 499         }
 500
 501         if (next != null) {
 502
 503             mCurrentOperation = next.second;
 504             RemoteOperationResult result = null;
 505             try {
 506                 /// prepare client object to send the request to the ownCloud server
 507                 if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 508                     mLastTarget = next.first;
 509                     if (mLastTarget.mAccount != null) {
 510                         OwnCloudAccount ocAccount = new OwnCloudAccount(mLastTarget.mAccount, this);
 511                         mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 512                                 getClientFor(ocAccount, this);
 513                         mStorageManager =
 514                                 new FileDataStorageManager(
 515                                         mLastTarget.mAccount,
 516                                         getContentResolver());
 517                     } else {
 518                         OwnCloudCredentials credentials = null;
 519                         if (mLastTarget.mUsername != null &&
 520                                 mLastTarget.mUsername.length() > 0) {
 521                             credentials = OwnCloudCredentialsFactory.newBasicCredentials(
 522                                     mLastTarget.mUsername,
 523                                     mLastTarget.mPassword);  // basic
 524
 525                         } else if (mLastTarget.mAuthToken != null &&
 526                                 mLastTarget.mAuthToken.length() > 0) {
 527                             credentials = OwnCloudCredentialsFactory.newBearerCredentials(
 528                                     mLastTarget.mAuthToken);  // bearer token
 529
 530                         } else if (mLastTarget.mCookie != null &&
 531                                 mLastTarget.mCookie.length() > 0) {
 532                             credentials = OwnCloudCredentialsFactory.newSamlSsoCredentials(
 533                                     mLastTarget.mCookie); // SAML SSO
 534                         }
 535                         OwnCloudAccount ocAccount = new OwnCloudAccount(
 536                                 mLastTarget.mServerUrl, credentials);
 537                         mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 538                                 getClientFor(ocAccount, this);
 539                         mStorageManager = null;
 540                     }
 541                 }
 542
 543                 /// perform the operation
 544                 if (mCurrentOperation instanceof SyncOperation) {
 545                     result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient, mStorageManager);
 546                 } else {
 547                     result = mCurrentOperation.execute(mOwnCloudClient);
 548                 }
 549
 550             } catch (AccountsException e) {
 551                 if (mLastTarget.mAccount == null) {
 552                     Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 553                 } else {
 554                     Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 555                 }
 556                 result = new RemoteOperationResult(e);
 557
 558             } catch (IOException e) {
 559                 if (mLastTarget.mAccount == null) {
 560                     Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 561                 } else {
 562                     Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 563                 }
 564                 result = new RemoteOperationResult(e);
 565             } catch (Exception e) {
 566                 if (mLastTarget.mAccount == null) {
 567                     Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 568                 } else {
 569                     Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 570                 }
 571                 result = new RemoteOperationResult(e);
 572
 573             } finally {
 574                 synchronized(mPendingOperations) {
 575                     mPendingOperations.poll();
 576                 }
 577             }
 578
 579             //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 580             dispatchResultToOperationListeners(mLastTarget, mCurrentOperation, result);
 581         }
 582     }
 583
 584
 585     /**
 586      * Sends a broadcast when a new operation is added to the queue.
 587      *
 588      * Local broadcasts are only delivered to activities in the same process, but can't be done sticky :\
 589      *
 590      * @param target            Account or URL pointing to an OC server.
 591      * @param operation         Added operation.
 592      */
 593     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 594         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 595         if (target.mAccount != null) {
 596             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 597         } else {
 598             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 599         }
 600         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 601         //lbm.sendBroadcast(intent);
 602         sendStickyBroadcast(intent);
 603     }
 604
 605
 606     // TODO - maybe add a notification for real start of operations
 607
 608     /**
 609      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities can update their view
 610      *
 611      * Local broadcasts are only delivered to activities in the same process.
 612      *
 613      * @param target            Account or URL pointing to an OC server.
 614      * @param operation         Finished operation.
 615      * @param result            Result of the operation.
 616      */
 617     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation, RemoteOperationResult result) {
 618         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 619         intent.putExtra(EXTRA_RESULT, result);
 620         if (target.mAccount != null) {
 621             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 622         } else {
 623             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 624         }
 625         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 626         //lbm.sendBroadcast(intent);
 627         sendStickyBroadcast(intent);
 628     }
 629
 630
 631     /**
 632      * Notifies the currently subscribed listeners about the end of an operation.
 633      *
 634      * @param target            Account or URL pointing to an OC server.
 635      * @param operation         Finished operation.
 636      * @param result            Result of the operation.
 637      */
 638     private void dispatchResultToOperationListeners(
 639             Target target, final RemoteOperation operation, final RemoteOperationResult result) {
 640         int count = 0;
 641         Iterator<OnRemoteOperationListener> listeners = mBinder.mBoundListeners.keySet().iterator();
 642         while (listeners.hasNext()) {
 643             final OnRemoteOperationListener listener = listeners.next();
 644             final Handler handler = mBinder.mBoundListeners.get(listener);
 645             if (handler != null) {
 646                 handler.post(new Runnable() {
 647                     @Override
 648                     public void run() {
 649                         listener.onRemoteOperationFinish(operation, result);
 650                     }
 651                 });
 652                 count += 1;
 653             }
 654         }
 655         if (count == 0) {
 656             //mOperationResults.put(operation.hashCode(), result);
 657             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 658                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 659             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 660         }
 661         Log_OC.d(TAG, "Called " + count + " listeners");
 662     }
 663
 664
 665 }