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.datamodel.OCFile;
  30 import com.owncloud.android.files.services.FileDownloader;
  31 import com.owncloud.android.lib.common.OwnCloudAccount;
  32 import com.owncloud.android.lib.common.OwnCloudClient;
  33 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  34 import com.owncloud.android.lib.common.OwnCloudCredentials;
  35 import com.owncloud.android.lib.common.OwnCloudCredentialsFactory;
  36 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  37 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  38 import com.owncloud.android.lib.common.operations.RemoteOperation;
  39 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  40 import com.owncloud.android.lib.common.utils.Log_OC;
  41 import com.owncloud.android.lib.resources.files.ExistenceCheckRemoteOperation;
  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
  89     // TODO review if ALL OF THEM are necessary
  90     public static final String EXTRA_SUCCESS_IF_ABSENT = "SUCCESS_IF_ABSENT";
  91     public static final String EXTRA_USERNAME = "USERNAME";
  92     public static final String EXTRA_PASSWORD = "PASSWORD";
  93     public static final String EXTRA_AUTH_TOKEN = "AUTH_TOKEN";
  94     public static final String EXTRA_COOKIE = "COOKIE";
  95
  96     public static final String ACTION_CREATE_SHARE = "CREATE_SHARE";
  97     public static final String ACTION_UNSHARE = "UNSHARE";
  98     public static final String ACTION_GET_SERVER_INFO = "GET_SERVER_INFO";
  99     public static final String ACTION_OAUTH2_GET_ACCESS_TOKEN = "OAUTH2_GET_ACCESS_TOKEN";
 100     public static final String ACTION_EXISTENCE_CHECK = "EXISTENCE_CHECK";
 101     public static final String ACTION_GET_USER_NAME = "GET_USER_NAME";
 102     public static final String ACTION_RENAME = "RENAME";
 103     public static final String ACTION_REMOVE = "REMOVE";
 104     public static final String ACTION_CREATE_FOLDER = "CREATE_FOLDER";
 105     public static final String ACTION_SYNC_FILE = "SYNC_FILE";
 106     public static final String ACTION_SYNC_FOLDER = "SYNC_FOLDER";  // for the moment, just to download
 107     public static final String ACTION_CANCEL_SYNC_FOLDER = "CANCEL_SYNC_FOLDER";  // for the moment, just to download
 108     public static final String ACTION_MOVE_FILE = "MOVE_FILE";
 109
 110     public static final String ACTION_OPERATION_ADDED = OperationsService.class.getName() + ".OPERATION_ADDED";
 111     public static final String ACTION_OPERATION_FINISHED = OperationsService.class.getName() + ".OPERATION_FINISHED";
 112
 113
 114     private ConcurrentMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>
 115         mUndispatchedFinishedOperations =
 116             new ConcurrentHashMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>();
 117
 118     private static class Target {
 119         public Uri mServerUrl = null;
 120         public Account mAccount = null;
 121         public String mUsername = null;
 122         public String mPassword = null;
 123         public String mAuthToken = null;
 124         public String mCookie = null;
 125
 126         public Target(Account account, Uri serverUrl, String username, String password, String authToken,
 127                 String cookie) {
 128             mAccount = account;
 129             mServerUrl = serverUrl;
 130             mUsername = username;
 131             mPassword = password;
 132             mAuthToken = authToken;
 133             mCookie = cookie;
 134         }
 135     }
 136
 137     private ServiceHandler mOperationsHandler;
 138     private OperationsServiceBinder mOperationsBinder;
 139
 140     private SyncFolderHandler mSyncFolderHandler;
 141
 142     /**
 143      * Service initialization
 144      */
 145     @Override
 146     public void onCreate() {
 147         super.onCreate();
 148         /// First worker thread for most of operations
 149         HandlerThread thread = new HandlerThread("Operations thread", Process.THREAD_PRIORITY_BACKGROUND);
 150         thread.start();
 151         mOperationsHandler = new ServiceHandler(thread.getLooper(), this);
 152         mOperationsBinder = new OperationsServiceBinder(mOperationsHandler);
 153
 154         /// Separated worker thread for download of folders (WIP)
 155         thread = new HandlerThread("Syncfolder thread", Process.THREAD_PRIORITY_BACKGROUND);
 156         thread.start();
 157         mSyncFolderHandler = new SyncFolderHandler(thread.getLooper(), this);
 158     }
 159
 160
 161     /**
 162      * Entry point to add a new operation to the queue of operations.
 163      *
 164      * New operations are added calling to startService(), resulting in a call to this method.
 165      * This ensures the service will keep on working although the caller activity goes away.
 166      */
 167     @Override
 168     public int onStartCommand(Intent intent, int flags, int startId) {
 169         // WIP: for the moment, only SYNC_FOLDER and CANCEL_SYNC_FOLDER is expected here;
 170         // the rest of the operations are requested through the Binder
 171         if (ACTION_SYNC_FOLDER.equals(intent.getAction())) {
 172             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 173                 Log_OC.e(TAG, "Not enough information provided in intent");
 174                 return START_NOT_STICKY;
 175             }
 176             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 177             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 178
 179             Pair<Account, String> itemSyncKey =  new Pair<Account , String>(account, remotePath);
 180
 181             Pair<Target, RemoteOperation> itemToQueue = newOperation(intent);
 182             if (itemToQueue != null) {
 183                 mSyncFolderHandler.add(account, remotePath, (SynchronizeFolderOperation)itemToQueue.second);
 184                 Message msg = mSyncFolderHandler.obtainMessage();
 185                 msg.arg1 = startId;
 186                 msg.obj = itemSyncKey;
 187                 mSyncFolderHandler.sendMessage(msg);
 188             }
 189         } else if (ACTION_CANCEL_SYNC_FOLDER.equals(intent.getAction())) {
 190             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_FILE)) {
 191                 Log_OC.e(TAG, "Not enough information provided in intent");
 192                 return START_NOT_STICKY;
 193             }
 194             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 195             OCFile file = intent.getParcelableExtra(EXTRA_FILE);
 196
 197             // Cancel operation
 198             mSyncFolderHandler.cancel(account,file);
 199         } else {
 200             Message msg = mOperationsHandler.obtainMessage();
 201             msg.arg1 = startId;
 202             mOperationsHandler.sendMessage(msg);
 203         }
 204
 205         return START_NOT_STICKY;
 206     }
 207
 208     @Override
 209     public void onDestroy() {
 210         //Log_OC.wtf(TAG, "onDestroy init" );
 211         // Saving cookies
 212         try {
 213             OwnCloudClientManagerFactory.getDefaultSingleton().
 214                 saveAllClients(this, MainApp.getAccountType());
 215
 216             // TODO - get rid of these exceptions
 217         } catch (AccountNotFoundException e) {
 218             e.printStackTrace();
 219         } catch (AuthenticatorException e) {
 220             e.printStackTrace();
 221         } catch (OperationCanceledException e) {
 222             e.printStackTrace();
 223         } catch (IOException e) {
 224             e.printStackTrace();
 225         }
 226
 227         //Log_OC.wtf(TAG, "Clear mUndispatchedFinisiedOperations" );
 228         mUndispatchedFinishedOperations.clear();
 229
 230         //Log_OC.wtf(TAG, "onDestroy end" );
 231         super.onDestroy();
 232     }
 233
 234     /**
 235      * Provides a binder object that clients can use to perform actions on the queue of operations,
 236      * except the addition of new operations.
 237      */
 238     @Override
 239     public IBinder onBind(Intent intent) {
 240         //Log_OC.wtf(TAG, "onBind" );
 241         return mOperationsBinder;
 242     }
 243
 244
 245     /**
 246      * Called when ALL the bound clients were unbound.
 247      */
 248     @Override
 249     public boolean onUnbind(Intent intent) {
 250         ((OperationsServiceBinder)mOperationsBinder).clearListeners();
 251         return false;   // not accepting rebinding (default behaviour)
 252     }
 253
 254
 255     /**
 256      *  Binder to let client components to perform actions on the queue of operations.
 257      *
 258      *  It provides by itself the available operations.
 259      */
 260     public class OperationsServiceBinder extends Binder /* implements OnRemoteOperationListener */ {
 261
 262         /**
 263          * Map of listeners that will be reported about the end of operations from a {@link OperationsServiceBinder} instance
 264          */
 265         private ConcurrentMap<OnRemoteOperationListener, Handler> mBoundListeners =
 266                 new ConcurrentHashMap<OnRemoteOperationListener, Handler>();
 267
 268         private ServiceHandler mServiceHandler = null;
 269
 270
 271         public OperationsServiceBinder(ServiceHandler serviceHandler) {
 272             mServiceHandler = serviceHandler;
 273         }
 274
 275
 276         /**
 277          * Cancels an operation
 278          *
 279          * TODO
 280          */
 281         public void cancel() {
 282             // TODO
 283         }
 284
 285
 286         public void clearListeners() {
 287
 288             mBoundListeners.clear();
 289         }
 290
 291
 292         /**
 293          * Adds a listener interested in being reported about the end of operations.
 294          *
 295          * @param listener          Object to notify about the end of operations.
 296          * @param callbackHandler   {@link Handler} to access the listener without breaking Android threading protection.
 297          */
 298         public void addOperationListener (OnRemoteOperationListener listener, Handler callbackHandler) {
 299             synchronized (mBoundListeners) {
 300                 mBoundListeners.put(listener, callbackHandler);
 301             }
 302         }
 303
 304
 305         /**
 306          * Removes a listener from the list of objects interested in the being reported about the end of operations.
 307          *
 308          * @param listener      Object to notify about progress of transfer.
 309          */
 310         public void removeOperationListener (OnRemoteOperationListener listener) {
 311             synchronized (mBoundListeners) {
 312                 mBoundListeners.remove(listener);
 313             }
 314         }
 315
 316
 317         /**
 318          * TODO - IMPORTANT: update implementation when more operations are moved into the service
 319          *
 320          * @return  'True' when an operation that enforces the user to wait for completion is 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, OnRemoteOperationListener listener) {
 349             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 350                     mUndispatchedFinishedOperations.remove(operationId);
 351             if (undispatched != null) {
 352                 listener.onRemoteOperationFinish(undispatched.first, undispatched.second);
 353                 return true;
 354                 //Log_OC.wtf(TAG, "Sending callback later");
 355             } else {
 356                 if (!mServiceHandler.mPendingOperations.isEmpty()) {
 357                     return true;
 358                 } else {
 359                     return false;
 360                 }
 361                 //Log_OC.wtf(TAG, "Not finished yet");
 362             }
 363         }
 364
 365     }
 366
 367
 368     /**
 369      * SyncFolder worker. Performs the pending operations in the order they were requested.
 370      *
 371      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 372      */
 373     private static class SyncFolderHandler extends Handler {
 374
 375         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 376
 377         OperationsService mService;
 378
 379         private ConcurrentMap<String,SynchronizeFolderOperation> mPendingOperations =
 380                 new ConcurrentHashMap<String,SynchronizeFolderOperation>();
 381         private OwnCloudClient mOwnCloudClient = null;
 382         private FileDataStorageManager mStorageManager;
 383         private SynchronizeFolderOperation mCurrentSyncOperation;
 384
 385
 386         public SyncFolderHandler(Looper looper, OperationsService service) {
 387             super(looper);
 388             if (service == null) {
 389                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 390             }
 391             mService = service;
 392         }
 393
 394         @Override
 395         public void handleMessage(Message msg) {
 396             Pair<Account, String> itemSyncKey = (Pair<Account, String>) msg.obj;
 397             doOperation(itemSyncKey.first, itemSyncKey.second);
 398             mService.stopSelf(msg.arg1);
 399         }
 400
 401
 402         /**
 403          * Performs the next operation in the queue
 404          */
 405         private void doOperation(Account account, String remotePath) {
 406
 407             String syncKey = buildRemoteName(account,remotePath);
 408
 409             synchronized(mPendingOperations) {
 410                 mCurrentSyncOperation = mPendingOperations.get(syncKey);
 411             }
 412
 413             if (mCurrentSyncOperation != null) {
 414
 415                 try {
 416
 417                     OwnCloudAccount ocAccount = new OwnCloudAccount(account, mService);
 418                     mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 419                             getClientFor(ocAccount, mService);
 420                     mStorageManager = new FileDataStorageManager(
 421                             account,
 422                             mService.getContentResolver()
 423                     );
 424
 425                     mCurrentSyncOperation.execute(mOwnCloudClient, mStorageManager);
 426
 427                 } catch (AccountsException e) {
 428                     Log_OC.e(TAG, "Error while trying to get autorization", e);
 429                 } catch (IOException e) {
 430                     Log_OC.e(TAG, "Error while trying to get autorization", e);
 431                 } finally {
 432                     synchronized(mPendingOperations) {
 433                         mPendingOperations.remove(syncKey);
 434                     }
 435                 }
 436             }
 437         }
 438
 439         public void add(Account account, String remotePath, SynchronizeFolderOperation syncFolderOperation){
 440             String syncKey = buildRemoteName(account,remotePath);
 441             mPendingOperations.putIfAbsent(syncKey,syncFolderOperation);
 442         }
 443
 444
 445         /**
 446          * Cancels a pending or current sync operation.
 447          *
 448          * @param account       Owncloud account where the remote file is stored.
 449          * @param file          File
 450          */
 451         public void cancel(Account account, OCFile file) {
 452             SynchronizeFolderOperation syncOperation = null;
 453             synchronized (mPendingOperations) {
 454                 syncOperation = mPendingOperations.remove(buildRemoteName(account, file.getRemotePath()));
 455             }
 456             if (syncOperation != null) {
 457                 syncOperation.cancel();
 458             }
 459
 460             Intent intent = new Intent( MainApp.getAppContext(), FileDownloader.class);
 461             intent.setAction(FileDownloader.ACTION_CANCEL_FILE_DOWNLOAD);
 462             intent.putExtra(FileDownloader.EXTRA_ACCOUNT, account);
 463             intent.putExtra(FileDownloader.EXTRA_FILE, file);
 464             MainApp.getAppContext().startService(intent);
 465
 466         }
 467
 468         /**
 469          * Builds a key from the account and file to download
 470          *
 471          * @param account   Account where the file to download is stored
 472          * @param path      File path
 473          */
 474         private String buildRemoteName(Account account, String path) {
 475             return account.name + path;
 476         }
 477     }
 478
 479
 480     /**
 481      * Operations worker. Performs the pending operations in the order they were requested.
 482      *
 483      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 484      */
 485     private static class ServiceHandler extends Handler {
 486         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 487
 488
 489         OperationsService mService;
 490
 491
 492         private ConcurrentLinkedQueue<Pair<Target, RemoteOperation>> mPendingOperations =
 493                 new ConcurrentLinkedQueue<Pair<Target, RemoteOperation>>();
 494         private RemoteOperation mCurrentOperation = null;
 495         private Target mLastTarget = null;
 496         private OwnCloudClient mOwnCloudClient = null;
 497         private FileDataStorageManager mStorageManager;
 498
 499
 500         public ServiceHandler(Looper looper, OperationsService service) {
 501             super(looper);
 502             if (service == null) {
 503                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 504             }
 505             mService = service;
 506         }
 507
 508         @Override
 509         public void handleMessage(Message msg) {
 510             nextOperation();
 511             mService.stopSelf(msg.arg1);
 512         }
 513
 514
 515         /**
 516          * Performs the next operation in the queue
 517          */
 518         private void nextOperation() {
 519
 520             //Log_OC.wtf(TAG, "nextOperation init" );
 521
 522             Pair<Target, RemoteOperation> next = null;
 523             synchronized(mPendingOperations) {
 524                 next = mPendingOperations.peek();
 525             }
 526
 527             if (next != null) {
 528
 529                 mCurrentOperation = next.second;
 530                 RemoteOperationResult result = null;
 531                 try {
 532                     /// prepare client object to send the request to the ownCloud server
 533                     if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 534                         mLastTarget = next.first;
 535                         if (mLastTarget.mAccount != null) {
 536                             OwnCloudAccount ocAccount = new OwnCloudAccount(mLastTarget.mAccount, mService);
 537                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 538                                     getClientFor(ocAccount, mService);
 539                             mStorageManager = new FileDataStorageManager(
 540                                     mLastTarget.mAccount,
 541                                     mService.getContentResolver()
 542                             );
 543                         } else {
 544                             OwnCloudCredentials credentials = null;
 545                             if (mLastTarget.mUsername != null &&
 546                                     mLastTarget.mUsername.length() > 0) {
 547                                 credentials = OwnCloudCredentialsFactory.newBasicCredentials(
 548                                         mLastTarget.mUsername,
 549                                         mLastTarget.mPassword);  // basic
 550
 551                             } else if (mLastTarget.mAuthToken != null &&
 552                                     mLastTarget.mAuthToken.length() > 0) {
 553                                 credentials = OwnCloudCredentialsFactory.newBearerCredentials(
 554                                         mLastTarget.mAuthToken);  // bearer token
 555
 556                             } else if (mLastTarget.mCookie != null &&
 557                                     mLastTarget.mCookie.length() > 0) {
 558                                 credentials = OwnCloudCredentialsFactory.newSamlSsoCredentials(
 559                                         mLastTarget.mCookie); // SAML SSO
 560                             }
 561                             OwnCloudAccount ocAccount = new OwnCloudAccount(
 562                                     mLastTarget.mServerUrl, credentials);
 563                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 564                                     getClientFor(ocAccount, mService);
 565                             mStorageManager = null;
 566                         }
 567                     }
 568
 569                     /// perform the operation
 570                     if (mCurrentOperation instanceof SyncOperation) {
 571                         result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient, mStorageManager);
 572                     } else {
 573                         result = mCurrentOperation.execute(mOwnCloudClient);
 574                     }
 575
 576                 } catch (AccountsException e) {
 577                     if (mLastTarget.mAccount == null) {
 578                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 579                     } else {
 580                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 581                     }
 582                     result = new RemoteOperationResult(e);
 583
 584                 } catch (IOException e) {
 585                     if (mLastTarget.mAccount == null) {
 586                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 587                     } else {
 588                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 589                     }
 590                     result = new RemoteOperationResult(e);
 591                 } catch (Exception e) {
 592                     if (mLastTarget.mAccount == null) {
 593                         Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 594                     } else {
 595                         Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 596                     }
 597                     result = new RemoteOperationResult(e);
 598
 599                 } finally {
 600                     synchronized(mPendingOperations) {
 601                         mPendingOperations.poll();
 602                     }
 603                 }
 604
 605                 //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 606                 mService.dispatchResultToOperationListeners(mLastTarget, mCurrentOperation, result);
 607             }
 608         }
 609
 610
 611
 612     }
 613
 614
 615     /**
 616      * Creates a new operation, as described by operationIntent.
 617      *
 618      * TODO - move to ServiceHandler (probably)
 619      *
 620      * @param operationIntent       Intent describing a new operation to queue and execute.
 621      * @return                      Pair with the new operation object and the information about its target server.
 622      */
 623     private Pair<Target , RemoteOperation> newOperation(Intent operationIntent) {
 624         RemoteOperation operation = null;
 625         Target target = null;
 626         try {
 627             if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 628                     !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 629                 Log_OC.e(TAG, "Not enough information provided in intent");
 630
 631             } else {
 632                 Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 633                 String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 634                 String username = operationIntent.getStringExtra(EXTRA_USERNAME);
 635                 String password = operationIntent.getStringExtra(EXTRA_PASSWORD);
 636                 String authToken = operationIntent.getStringExtra(EXTRA_AUTH_TOKEN);
 637                 String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 638                 target = new Target(
 639                         account,
 640                         (serverUrl == null) ? null : Uri.parse(serverUrl),
 641                         username,
 642                         password,
 643                         authToken,
 644                         cookie
 645                 );
 646
 647                 String action = operationIntent.getAction();
 648                 if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 649                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 650                     Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 651                     if (remotePath.length() > 0) {
 652                         operation = new CreateShareOperation(remotePath, ShareType.PUBLIC_LINK,
 653                                 "", false, "", 1, sendIntent);
 654                     }
 655
 656                 } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 657                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 658                     if (remotePath.length() > 0) {
 659                         operation = new UnshareLinkOperation(
 660                                 remotePath,
 661                                 OperationsService.this);
 662                     }
 663
 664                 } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 665                     // check OC server and get basic information from it
 666                     operation = new GetServerInfoOperation(serverUrl, OperationsService.this);
 667
 668                 } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 669                     /// GET ACCESS TOKEN to the OAuth server
 670                     String oauth2QueryParameters =
 671                             operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 672                     operation = new OAuth2GetAccessToken(
 673                             getString(R.string.oauth2_client_id),
 674                             getString(R.string.oauth2_redirect_uri),
 675                             getString(R.string.oauth2_grant_type),
 676                             oauth2QueryParameters);
 677
 678                 } else if (action.equals(ACTION_EXISTENCE_CHECK)) {
 679                     // Existence Check
 680                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 681                     boolean successIfAbsent = operationIntent.getBooleanExtra(EXTRA_SUCCESS_IF_ABSENT, false);
 682                     operation = new ExistenceCheckRemoteOperation(remotePath, OperationsService.this, successIfAbsent);
 683
 684                 } else if (action.equals(ACTION_GET_USER_NAME)) {
 685                     // Get User Name
 686                     operation = new GetRemoteUserNameOperation();
 687
 688                 } else if (action.equals(ACTION_RENAME)) {
 689                     // Rename file or folder
 690                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 691                     String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 692                     operation = new RenameFileOperation(remotePath, newName);
 693
 694                 } else if (action.equals(ACTION_REMOVE)) {
 695                     // Remove file or folder
 696                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 697                     boolean onlyLocalCopy = operationIntent.getBooleanExtra(EXTRA_REMOVE_ONLY_LOCAL, false);
 698                     operation = new RemoveFileOperation(remotePath, onlyLocalCopy);
 699
 700                 } else if (action.equals(ACTION_CREATE_FOLDER)) {
 701                     // Create Folder
 702                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 703                     boolean createFullPath = operationIntent.getBooleanExtra(EXTRA_CREATE_FULL_PATH, true);
 704                     operation = new CreateFolderOperation(remotePath, createFullPath);
 705
 706                 } else if (action.equals(ACTION_SYNC_FILE)) {
 707                     // Sync file
 708                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 709                     boolean syncFileContents = operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 710                     operation = new SynchronizeFileOperation(
 711                             remotePath, account, syncFileContents, getApplicationContext()
 712                     );
 713
 714                 } else if (action.equals(ACTION_SYNC_FOLDER)) {
 715                     // Sync file
 716                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 717                     operation = new SynchronizeFolderOperation(
 718                             this,                       // TODO remove this dependency from construction time
 719                             remotePath,
 720                             account,
 721                             System.currentTimeMillis()  // TODO remove this dependency from construction time
 722                     );
 723
 724                 } else if (action.equals(ACTION_MOVE_FILE)) {
 725                     // Move file/folder
 726                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 727                     String newParentPath = operationIntent.getStringExtra(EXTRA_NEW_PARENT_PATH);
 728                     operation = new MoveFileOperation(remotePath,newParentPath,account);
 729                 }
 730
 731             }
 732
 733         } catch (IllegalArgumentException e) {
 734             Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 735             operation = null;
 736         }
 737
 738         if (operation != null) {
 739             return new Pair<Target , RemoteOperation>(target, operation);
 740         } else {
 741             return null;
 742         }
 743     }
 744
 745
 746     /**
 747      * Sends a broadcast when a new operation is added to the queue.
 748      *
 749      * Local broadcasts are only delivered to activities in the same process, but can't be done sticky :\
 750      *
 751      * @param target            Account or URL pointing to an OC server.
 752      * @param operation         Added operation.
 753      */
 754     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 755         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 756         if (target.mAccount != null) {
 757             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 758         } else {
 759             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 760         }
 761         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 762         //lbm.sendBroadcast(intent);
 763         sendStickyBroadcast(intent);
 764     }
 765
 766
 767     // TODO - maybe add a notification for real start of operations
 768
 769     /**
 770      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities can update their view
 771      *
 772      * Local broadcasts are only delivered to activities in the same process.
 773      *
 774      * @param target            Account or URL pointing to an OC server.
 775      * @param operation         Finished operation.
 776      * @param result            Result of the operation.
 777      */
 778     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation, RemoteOperationResult result) {
 779         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 780         intent.putExtra(EXTRA_RESULT, result);
 781         if (target.mAccount != null) {
 782             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 783         } else {
 784             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 785         }
 786         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 787         //lbm.sendBroadcast(intent);
 788         sendStickyBroadcast(intent);
 789     }
 790
 791
 792     /**
 793      * Notifies the currently subscribed listeners about the end of an operation.
 794      *
 795      * @param target            Account or URL pointing to an OC server.
 796      * @param operation         Finished operation.
 797      * @param result            Result of the operation.
 798      */
 799     private void dispatchResultToOperationListeners(
 800             Target target, final RemoteOperation operation, final RemoteOperationResult result) {
 801         int count = 0;
 802         Iterator<OnRemoteOperationListener> listeners = mOperationsBinder.mBoundListeners.keySet().iterator();
 803         while (listeners.hasNext()) {
 804             final OnRemoteOperationListener listener = listeners.next();
 805             final Handler handler = mOperationsBinder.mBoundListeners.get(listener);
 806             if (handler != null) {
 807                 handler.post(new Runnable() {
 808                     @Override
 809                     public void run() {
 810                         listener.onRemoteOperationFinish(operation, result);
 811                     }
 812                 });
 813                 count += 1;
 814             }
 815         }
 816         if (count == 0) {
 817             //mOperationResults.put(operation.hashCode(), result);
 818             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 819                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 820             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 821         }
 822         Log_OC.d(TAG, "Called " + count + " listeners");
 823     }
 824 }