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.lib.common.OwnCloudAccount;
  31 import com.owncloud.android.lib.common.OwnCloudClient;
  32 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  33 import com.owncloud.android.lib.common.OwnCloudCredentials;
  34 import com.owncloud.android.lib.common.OwnCloudCredentialsFactory;
  35 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  36 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  37 import com.owncloud.android.lib.common.operations.RemoteOperation;
  38 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  39 import com.owncloud.android.lib.common.utils.Log_OC;
  40 import com.owncloud.android.lib.resources.files.ExistenceCheckRemoteOperation;
  41 import com.owncloud.android.lib.resources.shares.ShareType;
  42 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  43 import com.owncloud.android.operations.common.SyncOperation;
  44 import com.owncloud.android.operations.CreateFolderOperation;
  45 import com.owncloud.android.operations.CreateShareOperation;
  46 import com.owncloud.android.operations.GetServerInfoOperation;
  47 import com.owncloud.android.operations.MoveFileOperation;
  48 import com.owncloud.android.operations.OAuth2GetAccessToken;
  49 import com.owncloud.android.operations.RemoveFileOperation;
  50 import com.owncloud.android.operations.RenameFileOperation;
  51 import com.owncloud.android.operations.SynchronizeFileOperation;
  52 import com.owncloud.android.operations.SynchronizeFolderOperation;
  53 import com.owncloud.android.operations.UnshareLinkOperation;
  54
  55 import android.accounts.Account;
  56 import android.accounts.AccountsException;
  57 import android.accounts.AuthenticatorException;
  58 import android.accounts.OperationCanceledException;
  59 import android.app.Service;
  60 import android.content.Intent;
  61 import android.net.Uri;
  62 import android.os.Binder;
  63 import android.os.Handler;
  64 import android.os.HandlerThread;
  65 import android.os.IBinder;
  66 import android.os.Looper;
  67 import android.os.Message;
  68 import android.os.Process;
  69 import android.util.Pair;
  70
  71 public class OperationsService extends Service {
  72
  73     private static final String TAG = OperationsService.class.getSimpleName();
  74
  75     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  76     public static final String EXTRA_SERVER_URL = "SERVER_URL";
  77     public static final String EXTRA_OAUTH2_QUERY_PARAMETERS = "OAUTH2_QUERY_PARAMETERS";
  78     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  79     public static final String EXTRA_SEND_INTENT = "SEND_INTENT";
  80     public static final String EXTRA_NEWNAME = "NEWNAME";
  81     public static final String EXTRA_REMOVE_ONLY_LOCAL = "REMOVE_LOCAL_COPY";
  82     public static final String EXTRA_CREATE_FULL_PATH = "CREATE_FULL_PATH";
  83     public static final String EXTRA_SYNC_FILE_CONTENTS = "SYNC_FILE_CONTENTS";
  84     public static final String EXTRA_RESULT = "RESULT";
  85     public static final String EXTRA_NEW_PARENT_PATH = "NEW_PARENT_PATH";
  86
  87     // TODO review if ALL OF THEM are necessary
  88     public static final String EXTRA_SUCCESS_IF_ABSENT = "SUCCESS_IF_ABSENT";
  89     public static final String EXTRA_USERNAME = "USERNAME";
  90     public static final String EXTRA_PASSWORD = "PASSWORD";
  91     public static final String EXTRA_AUTH_TOKEN = "AUTH_TOKEN";
  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_EXISTENCE_CHECK = "EXISTENCE_CHECK";
  99     public static final String ACTION_GET_USER_NAME = "GET_USER_NAME";
 100     public static final String ACTION_RENAME = "RENAME";
 101     public static final String ACTION_REMOVE = "REMOVE";
 102     public static final String ACTION_CREATE_FOLDER = "CREATE_FOLDER";
 103     public static final String ACTION_SYNC_FILE = "SYNC_FILE";
 104     public static final String ACTION_SYNC_FOLDER = "SYNC_FOLDER";  // for the moment, just to download
 105     public static final String ACTION_CANCEL_SYNC_FOLDER = "CANCEL_SYNC_FOLDER";  // for the moment, just to download
 106     public static final String ACTION_MOVE_FILE = "MOVE_FILE";
 107
 108     public static final String ACTION_OPERATION_ADDED = OperationsService.class.getName() + ".OPERATION_ADDED";
 109     public static final String ACTION_OPERATION_FINISHED = OperationsService.class.getName() + ".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 mUsername = null;
 120         public String mPassword = null;
 121         public String mAuthToken = null;
 122         public String mCookie = null;
 123
 124         public Target(Account account, Uri serverUrl, String username, String password, String authToken,
 125                 String cookie) {
 126             mAccount = account;
 127             mServerUrl = serverUrl;
 128             mUsername = username;
 129             mPassword = password;
 130             mAuthToken = authToken;
 131             mCookie = cookie;
 132         }
 133     }
 134
 135     private ServiceHandler mOperationsHandler;
 136     private OperationsServiceBinder mOperationsBinder;
 137
 138     private SyncFolderHandler mSyncFolderHandler;
 139
 140     /**
 141      * Service initialization
 142      */
 143     @Override
 144     public void onCreate() {
 145         super.onCreate();
 146         /// First worker thread for most of operations
 147         HandlerThread thread = new HandlerThread("Operations thread", Process.THREAD_PRIORITY_BACKGROUND);
 148         thread.start();
 149         mOperationsHandler = new ServiceHandler(thread.getLooper(), this);
 150         mOperationsBinder = new OperationsServiceBinder(mOperationsHandler);
 151
 152         /// Separated worker thread for download of folders (WIP)
 153         thread = new HandlerThread("Syncfolder thread", Process.THREAD_PRIORITY_BACKGROUND);
 154         thread.start();
 155         mSyncFolderHandler = new SyncFolderHandler(thread.getLooper(), this);
 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         // WIP: for the moment, only SYNC_FOLDER and CANCEL_SYNC_FOLDER is expected here;
 168         // the rest of the operations are requested through the Binder
 169         if (ACTION_SYNC_FOLDER.equals(intent.getAction())) {
 170             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 171                 Log_OC.e(TAG, "Not enough information provided in intent");
 172                 return START_NOT_STICKY;
 173             }
 174             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 175             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 176
 177             OCFile file = new OCFile(remotePath);
 178             Pair<Account, OCFile> itemSyncKey =  new Pair<Account , OCFile>(account, file);
 179
 180             Pair<Target, RemoteOperation> itemToQueue = newOperation(intent);
 181             if (itemToQueue != null) {
 182                 mSyncFolderHandler.add(account, file, (SynchronizeFolderOperation)itemToQueue.second);
 183                 Message msg = mSyncFolderHandler.obtainMessage();
 184                 msg.arg1 = startId;
 185                 msg.obj = itemSyncKey;
 186                 mSyncFolderHandler.sendMessage(msg);
 187             }
 188         } else if (ACTION_CANCEL_SYNC_FOLDER.equals(intent.getAction())) {
 189             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 190                 Log_OC.e(TAG, "Not enough information provided in intent");
 191                 return START_NOT_STICKY;
 192             }
 193             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 194             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 195
 196             OCFile file = new OCFile(remotePath);
 197
 198             // Cancel operation
 199             mSyncFolderHandler.cancel(account,file);
 200         } else {
 201             Message msg = mOperationsHandler.obtainMessage();
 202             msg.arg1 = startId;
 203             mOperationsHandler.sendMessage(msg);
 204         }
 205
 206         return START_NOT_STICKY;
 207     }
 208
 209     @Override
 210     public void onDestroy() {
 211         //Log_OC.wtf(TAG, "onDestroy init" );
 212         // Saving cookies
 213         try {
 214             OwnCloudClientManagerFactory.getDefaultSingleton().
 215                 saveAllClients(this, MainApp.getAccountType());
 216
 217             // TODO - get rid of these exceptions
 218         } catch (AccountNotFoundException e) {
 219             e.printStackTrace();
 220         } catch (AuthenticatorException e) {
 221             e.printStackTrace();
 222         } catch (OperationCanceledException e) {
 223             e.printStackTrace();
 224         } catch (IOException e) {
 225             e.printStackTrace();
 226         }
 227
 228         //Log_OC.wtf(TAG, "Clear mUndispatchedFinisiedOperations" );
 229         mUndispatchedFinishedOperations.clear();
 230
 231         //Log_OC.wtf(TAG, "onDestroy end" );
 232         super.onDestroy();
 233     }
 234
 235     /**
 236      * Provides a binder object that clients can use to perform actions on the queue of operations,
 237      * except the addition of new operations.
 238      */
 239     @Override
 240     public IBinder onBind(Intent intent) {
 241         //Log_OC.wtf(TAG, "onBind" );
 242         return mOperationsBinder;
 243     }
 244
 245
 246     /**
 247      * Called when ALL the bound clients were unbound.
 248      */
 249     @Override
 250     public boolean onUnbind(Intent intent) {
 251         ((OperationsServiceBinder)mOperationsBinder).clearListeners();
 252         return false;   // not accepting rebinding (default behaviour)
 253     }
 254
 255
 256     /**
 257      *  Binder to let client components to perform actions on the queue of operations.
 258      *
 259      *  It provides by itself the available operations.
 260      */
 261     public class OperationsServiceBinder extends Binder /* implements OnRemoteOperationListener */ {
 262
 263         /**
 264          * Map of listeners that will be reported about the end of operations from a {@link OperationsServiceBinder} instance
 265          */
 266         private ConcurrentMap<OnRemoteOperationListener, Handler> mBoundListeners =
 267                 new ConcurrentHashMap<OnRemoteOperationListener, Handler>();
 268
 269         private ServiceHandler mServiceHandler = null;
 270
 271
 272         public OperationsServiceBinder(ServiceHandler serviceHandler) {
 273             mServiceHandler = serviceHandler;
 274         }
 275
 276
 277         /**
 278          * Cancels an operation
 279          *
 280          * TODO
 281          */
 282         public void cancel() {
 283             // TODO
 284         }
 285
 286
 287         public void clearListeners() {
 288
 289             mBoundListeners.clear();
 290         }
 291
 292
 293         /**
 294          * Adds a listener interested in being reported about the end of operations.
 295          *
 296          * @param listener          Object to notify about the end of operations.
 297          * @param callbackHandler   {@link Handler} to access the listener without breaking Android threading protection.
 298          */
 299         public void addOperationListener (OnRemoteOperationListener listener, Handler callbackHandler) {
 300             synchronized (mBoundListeners) {
 301                 mBoundListeners.put(listener, callbackHandler);
 302             }
 303         }
 304
 305
 306         /**
 307          * Removes a listener from the list of objects interested in the being reported about the end of operations.
 308          *
 309          * @param listener      Object to notify about progress of transfer.
 310          */
 311         public void removeOperationListener (OnRemoteOperationListener listener) {
 312             synchronized (mBoundListeners) {
 313                 mBoundListeners.remove(listener);
 314             }
 315         }
 316
 317
 318         /**
 319          * TODO - IMPORTANT: update implementation when more operations are moved into the service
 320          *
 321          * @return  'True' when an operation that enforces the user to wait for completion is in process.
 322          */
 323         public boolean isPerformingBlockingOperation() {
 324             return (!mServiceHandler.mPendingOperations.isEmpty());
 325         }
 326
 327
 328         /**
 329          * Creates and adds to the queue a new operation, as described by operationIntent.
 330          *
 331          * Calls startService to make the operation is processed by the ServiceHandler.
 332          *
 333          * @param operationIntent       Intent describing a new operation to queue and execute.
 334          * @return                      Identifier of the operation created, or null if failed.
 335          */
 336         public long queueNewOperation(Intent operationIntent) {
 337             Pair<Target, RemoteOperation> itemToQueue = newOperation(operationIntent);
 338             if (itemToQueue != null) {
 339                 mServiceHandler.mPendingOperations.add(itemToQueue);
 340                 startService(new Intent(OperationsService.this, OperationsService.class));
 341                 return itemToQueue.second.hashCode();
 342
 343             } else {
 344                 return Long.MAX_VALUE;
 345             }
 346         }
 347
 348
 349         public boolean dispatchResultIfFinished(int operationId, 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                 if (!mServiceHandler.mPendingOperations.isEmpty()) {
 358                     return true;
 359                 } else {
 360                     return false;
 361                 }
 362                 //Log_OC.wtf(TAG, "Not finished yet");
 363             }
 364         }
 365
 366     }
 367
 368
 369     /**
 370      * SyncFolder worker. Performs the pending operations in the order they were requested.
 371      *
 372      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 373      */
 374     private static class SyncFolderHandler extends Handler {
 375
 376         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 377
 378         OperationsService mService;
 379
 380         private ConcurrentMap<String,SynchronizeFolderOperation> mPendingOperations =
 381                 new ConcurrentHashMap<String,SynchronizeFolderOperation>();
 382         private OwnCloudClient mOwnCloudClient = null;
 383         private FileDataStorageManager mStorageManager;
 384         private SynchronizeFolderOperation mCurrentSyncOperation;
 385
 386
 387         public SyncFolderHandler(Looper looper, OperationsService service) {
 388             super(looper);
 389             if (service == null) {
 390                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 391             }
 392             mService = service;
 393         }
 394
 395         @Override
 396         public void handleMessage(Message msg) {
 397             Pair<Account, OCFile> itemSyncKey = (Pair<Account, OCFile>) msg.obj;
 398             nextOperation(itemSyncKey.first,itemSyncKey.second);
 399             mService.stopSelf(msg.arg1);
 400         }
 401
 402
 403         /**
 404          * Performs the next operation in the queue
 405          */
 406         private void nextOperation(Account account, OCFile file) {
 407
 408             String syncKey = buildRemoteName(account,file);
 409
 410             synchronized(mPendingOperations) {
 411                 mCurrentSyncOperation = mPendingOperations.get(syncKey);
 412             }
 413
 414             if (mCurrentSyncOperation != null) {
 415
 416                 RemoteOperationResult operationResult = null;
 417                 try {
 418
 419                     OwnCloudAccount ocAccount = new OwnCloudAccount(account, mService);
 420                     mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 421                             getClientFor(ocAccount, mService);
 422                     mStorageManager = new FileDataStorageManager(
 423                             account,
 424                             mService.getContentResolver()
 425                     );
 426
 427
 428                     /// perform the operation
 429                     if (mCurrentSyncOperation instanceof SyncOperation) {
 430                         operationResult = ((SyncOperation)mCurrentSyncOperation).execute(mOwnCloudClient, mStorageManager);
 431                     } else {
 432                         operationResult = mCurrentSyncOperation.execute(mOwnCloudClient);
 433                     }
 434
 435                 } catch (AccountsException e) {
 436                     Log_OC.e(TAG, "Error while trying to get autorization", e);
 437                     operationResult = new RemoteOperationResult(e);
 438                 } catch (IOException e) {
 439                     Log_OC.e(TAG, "Error while trying to get autorization", e);
 440                     operationResult = new RemoteOperationResult(e);
 441
 442                 } finally {
 443                     synchronized(mPendingOperations) {
 444                         mPendingOperations.remove(syncKey);
 445                     }
 446                 }
 447
 448                 /// TODO notify operation result if needed
 449
 450             }
 451         }
 452
 453         public void add(Account account, OCFile file, SynchronizeFolderOperation syncFolderOperation){
 454             String syncKey = buildRemoteName(account,file);
 455             mPendingOperations.putIfAbsent(syncKey,syncFolderOperation);
 456         }
 457
 458         /**
 459          * Cancels a pending or current sync operation.
 460          *
 461          * @param account       Owncloud account where the remote file is stored.
 462          * @param file          A file in the queue of pending downloads
 463          */
 464         public void cancel(Account account, OCFile file) {
 465             SynchronizeFolderOperation syncOperation = null;
 466             synchronized (mPendingOperations) {
 467                 syncOperation = mPendingOperations.remove(buildRemoteName(account, file));
 468             }
 469             if (syncOperation != null) {
 470                 syncOperation.cancel();
 471             }
 472         }
 473
 474         /**
 475          * Builds a key from the account and file to download
 476          *
 477          * @param account   Account where the file to download is stored
 478          * @param file      File to download
 479          */
 480         private String buildRemoteName(Account account, OCFile file) {
 481             return account.name + file.getRemotePath();
 482         }
 483     }
 484
 485
 486     /**
 487      * Operations worker. Performs the pending operations in the order they were requested.
 488      *
 489      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 490      */
 491     private static class ServiceHandler extends Handler {
 492         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 493
 494
 495         OperationsService mService;
 496
 497
 498         private ConcurrentLinkedQueue<Pair<Target, RemoteOperation>> mPendingOperations =
 499                 new ConcurrentLinkedQueue<Pair<Target, RemoteOperation>>();
 500         private RemoteOperation mCurrentOperation = null;
 501         private Target mLastTarget = null;
 502         private OwnCloudClient mOwnCloudClient = null;
 503         private FileDataStorageManager mStorageManager;
 504
 505
 506         public ServiceHandler(Looper looper, OperationsService service) {
 507             super(looper);
 508             if (service == null) {
 509                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 510             }
 511             mService = service;
 512         }
 513
 514         @Override
 515         public void handleMessage(Message msg) {
 516             nextOperation();
 517             mService.stopSelf(msg.arg1);
 518         }
 519
 520
 521         /**
 522          * Performs the next operation in the queue
 523          */
 524         private void nextOperation() {
 525
 526             //Log_OC.wtf(TAG, "nextOperation init" );
 527
 528             Pair<Target, RemoteOperation> next = null;
 529             synchronized(mPendingOperations) {
 530                 next = mPendingOperations.peek();
 531             }
 532
 533             if (next != null) {
 534
 535                 mCurrentOperation = next.second;
 536                 RemoteOperationResult result = null;
 537                 try {
 538                     /// prepare client object to send the request to the ownCloud server
 539                     if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 540                         mLastTarget = next.first;
 541                         if (mLastTarget.mAccount != null) {
 542                             OwnCloudAccount ocAccount = new OwnCloudAccount(mLastTarget.mAccount, mService);
 543                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 544                                     getClientFor(ocAccount, mService);
 545                             mStorageManager = new FileDataStorageManager(
 546                                     mLastTarget.mAccount,
 547                                     mService.getContentResolver()
 548                             );
 549                         } else {
 550                             OwnCloudCredentials credentials = null;
 551                             if (mLastTarget.mUsername != null &&
 552                                     mLastTarget.mUsername.length() > 0) {
 553                                 credentials = OwnCloudCredentialsFactory.newBasicCredentials(
 554                                         mLastTarget.mUsername,
 555                                         mLastTarget.mPassword);  // basic
 556
 557                             } else if (mLastTarget.mAuthToken != null &&
 558                                     mLastTarget.mAuthToken.length() > 0) {
 559                                 credentials = OwnCloudCredentialsFactory.newBearerCredentials(
 560                                         mLastTarget.mAuthToken);  // bearer token
 561
 562                             } else if (mLastTarget.mCookie != null &&
 563                                     mLastTarget.mCookie.length() > 0) {
 564                                 credentials = OwnCloudCredentialsFactory.newSamlSsoCredentials(
 565                                         mLastTarget.mCookie); // SAML SSO
 566                             }
 567                             OwnCloudAccount ocAccount = new OwnCloudAccount(
 568                                     mLastTarget.mServerUrl, credentials);
 569                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 570                                     getClientFor(ocAccount, mService);
 571                             mStorageManager = null;
 572                         }
 573                     }
 574
 575                     /// perform the operation
 576                     if (mCurrentOperation instanceof SyncOperation) {
 577                         result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient, mStorageManager);
 578                     } else {
 579                         result = mCurrentOperation.execute(mOwnCloudClient);
 580                     }
 581
 582                 } catch (AccountsException e) {
 583                     if (mLastTarget.mAccount == null) {
 584                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 585                     } else {
 586                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 587                     }
 588                     result = new RemoteOperationResult(e);
 589
 590                 } catch (IOException e) {
 591                     if (mLastTarget.mAccount == null) {
 592                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 593                     } else {
 594                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 595                     }
 596                     result = new RemoteOperationResult(e);
 597                 } catch (Exception e) {
 598                     if (mLastTarget.mAccount == null) {
 599                         Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 600                     } else {
 601                         Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 602                     }
 603                     result = new RemoteOperationResult(e);
 604
 605                 } finally {
 606                     synchronized(mPendingOperations) {
 607                         mPendingOperations.poll();
 608                     }
 609                 }
 610
 611                 //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 612                 mService.dispatchResultToOperationListeners(mLastTarget, mCurrentOperation, result);
 613             }
 614         }
 615
 616
 617
 618     }
 619
 620
 621     /**
 622      * Creates a new operation, as described by operationIntent.
 623      *
 624      * TODO - move to ServiceHandler (probably)
 625      *
 626      * @param operationIntent       Intent describing a new operation to queue and execute.
 627      * @return                      Pair with the new operation object and the information about its target server.
 628      */
 629     private Pair<Target , RemoteOperation> newOperation(Intent operationIntent) {
 630         RemoteOperation operation = null;
 631         Target target = null;
 632         try {
 633             if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 634                     !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 635                 Log_OC.e(TAG, "Not enough information provided in intent");
 636
 637             } else {
 638                 Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 639                 String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 640                 String username = operationIntent.getStringExtra(EXTRA_USERNAME);
 641                 String password = operationIntent.getStringExtra(EXTRA_PASSWORD);
 642                 String authToken = operationIntent.getStringExtra(EXTRA_AUTH_TOKEN);
 643                 String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 644                 target = new Target(
 645                         account,
 646                         (serverUrl == null) ? null : Uri.parse(serverUrl),
 647                         username,
 648                         password,
 649                         authToken,
 650                         cookie
 651                 );
 652
 653                 String action = operationIntent.getAction();
 654                 if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 655                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 656                     Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 657                     if (remotePath.length() > 0) {
 658                         operation = new CreateShareOperation(remotePath, ShareType.PUBLIC_LINK,
 659                                 "", false, "", 1, sendIntent);
 660                     }
 661
 662                 } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 663                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 664                     if (remotePath.length() > 0) {
 665                         operation = new UnshareLinkOperation(
 666                                 remotePath,
 667                                 OperationsService.this);
 668                     }
 669
 670                 } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 671                     // check OC server and get basic information from it
 672                     operation = new GetServerInfoOperation(serverUrl, OperationsService.this);
 673
 674                 } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 675                     /// GET ACCESS TOKEN to the OAuth server
 676                     String oauth2QueryParameters =
 677                             operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 678                     operation = new OAuth2GetAccessToken(
 679                             getString(R.string.oauth2_client_id),
 680                             getString(R.string.oauth2_redirect_uri),
 681                             getString(R.string.oauth2_grant_type),
 682                             oauth2QueryParameters);
 683
 684                 } else if (action.equals(ACTION_EXISTENCE_CHECK)) {
 685                     // Existence Check
 686                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 687                     boolean successIfAbsent = operationIntent.getBooleanExtra(EXTRA_SUCCESS_IF_ABSENT, false);
 688                     operation = new ExistenceCheckRemoteOperation(remotePath, OperationsService.this, successIfAbsent);
 689
 690                 } else if (action.equals(ACTION_GET_USER_NAME)) {
 691                     // Get User Name
 692                     operation = new GetRemoteUserNameOperation();
 693
 694                 } else if (action.equals(ACTION_RENAME)) {
 695                     // Rename file or folder
 696                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 697                     String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 698                     operation = new RenameFileOperation(remotePath, newName);
 699
 700                 } else if (action.equals(ACTION_REMOVE)) {
 701                     // Remove file or folder
 702                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 703                     boolean onlyLocalCopy = operationIntent.getBooleanExtra(EXTRA_REMOVE_ONLY_LOCAL, false);
 704                     operation = new RemoveFileOperation(remotePath, onlyLocalCopy);
 705
 706                 } else if (action.equals(ACTION_CREATE_FOLDER)) {
 707                     // Create Folder
 708                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 709                     boolean createFullPath = operationIntent.getBooleanExtra(EXTRA_CREATE_FULL_PATH, true);
 710                     operation = new CreateFolderOperation(remotePath, createFullPath);
 711
 712                 } else if (action.equals(ACTION_SYNC_FILE)) {
 713                     // Sync file
 714                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 715                     boolean syncFileContents = operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 716                     operation = new SynchronizeFileOperation(
 717                             remotePath, account, syncFileContents, getApplicationContext()
 718                     );
 719
 720                 } else if (action.equals(ACTION_SYNC_FOLDER)) {
 721                     // Sync file
 722                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 723                     operation = new SynchronizeFolderOperation(
 724                             this,                       // TODO remove this dependency from construction time
 725                             remotePath,
 726                             account,
 727                             System.currentTimeMillis()  // TODO remove this dependency from construction time
 728                     );
 729
 730                 } else if (action.equals(ACTION_MOVE_FILE)) {
 731                     // Move file/folder
 732                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 733                     String newParentPath = operationIntent.getStringExtra(EXTRA_NEW_PARENT_PATH);
 734                     operation = new MoveFileOperation(remotePath,newParentPath,account);
 735                 }
 736
 737             }
 738
 739         } catch (IllegalArgumentException e) {
 740             Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 741             operation = null;
 742         }
 743
 744         if (operation != null) {
 745             return new Pair<Target , RemoteOperation>(target, operation);
 746         } else {
 747             return null;
 748         }
 749     }
 750
 751
 752     /**
 753      * Sends a broadcast when a new operation is added to the queue.
 754      *
 755      * Local broadcasts are only delivered to activities in the same process, but can't be done sticky :\
 756      *
 757      * @param target            Account or URL pointing to an OC server.
 758      * @param operation         Added operation.
 759      */
 760     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 761         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 762         if (target.mAccount != null) {
 763             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 764         } else {
 765             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 766         }
 767         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 768         //lbm.sendBroadcast(intent);
 769         sendStickyBroadcast(intent);
 770     }
 771
 772
 773     // TODO - maybe add a notification for real start of operations
 774
 775     /**
 776      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities can update their view
 777      *
 778      * Local broadcasts are only delivered to activities in the same process.
 779      *
 780      * @param target            Account or URL pointing to an OC server.
 781      * @param operation         Finished operation.
 782      * @param result            Result of the operation.
 783      */
 784     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation, RemoteOperationResult result) {
 785         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 786         intent.putExtra(EXTRA_RESULT, result);
 787         if (target.mAccount != null) {
 788             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 789         } else {
 790             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 791         }
 792         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 793         //lbm.sendBroadcast(intent);
 794         sendStickyBroadcast(intent);
 795     }
 796
 797
 798     /**
 799      * Notifies the currently subscribed listeners about the end of an operation.
 800      *
 801      * @param target            Account or URL pointing to an OC server.
 802      * @param operation         Finished operation.
 803      * @param result            Result of the operation.
 804      */
 805     private void dispatchResultToOperationListeners(
 806             Target target, final RemoteOperation operation, final RemoteOperationResult result) {
 807         int count = 0;
 808         Iterator<OnRemoteOperationListener> listeners = mOperationsBinder.mBoundListeners.keySet().iterator();
 809         while (listeners.hasNext()) {
 810             final OnRemoteOperationListener listener = listeners.next();
 811             final Handler handler = mOperationsBinder.mBoundListeners.get(listener);
 812             if (handler != null) {
 813                 handler.post(new Runnable() {
 814                     @Override
 815                     public void run() {
 816                         listener.onRemoteOperationFinish(operation, result);
 817                     }
 818                 });
 819                 count += 1;
 820             }
 821         }
 822         if (count == 0) {
 823             //mOperationResults.put(operation.hashCode(), result);
 824             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 825                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 826             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 827         }
 828         Log_OC.d(TAG, "Called " + count + " listeners");
 829     }
 830 }