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     public static final String EXTRA_FILE = "FILE";
  87
  88     // TODO review if ALL OF THEM are necessary
  89     public static final String EXTRA_SUCCESS_IF_ABSENT = "SUCCESS_IF_ABSENT";
  90     public static final String EXTRA_USERNAME = "USERNAME";
  91     public static final String EXTRA_PASSWORD = "PASSWORD";
  92     public static final String EXTRA_AUTH_TOKEN = "AUTH_TOKEN";
  93     public static final String EXTRA_COOKIE = "COOKIE";
  94
  95     public static final String ACTION_CREATE_SHARE = "CREATE_SHARE";
  96     public static final String ACTION_UNSHARE = "UNSHARE";
  97     public static final String ACTION_GET_SERVER_INFO = "GET_SERVER_INFO";
  98     public static final String ACTION_OAUTH2_GET_ACCESS_TOKEN = "OAUTH2_GET_ACCESS_TOKEN";
  99     public static final String ACTION_EXISTENCE_CHECK = "EXISTENCE_CHECK";
 100     public static final String ACTION_GET_USER_NAME = "GET_USER_NAME";
 101     public static final String ACTION_RENAME = "RENAME";
 102     public static final String ACTION_REMOVE = "REMOVE";
 103     public static final String ACTION_CREATE_FOLDER = "CREATE_FOLDER";
 104     public static final String ACTION_SYNC_FILE = "SYNC_FILE";
 105     public static final String ACTION_SYNC_FOLDER = "SYNC_FOLDER";  // for the moment, just to download
 106     //public static final String ACTION_CANCEL_SYNC_FOLDER = "CANCEL_SYNC_FOLDER";  // for the moment, just to download
 107     public static final String ACTION_MOVE_FILE = "MOVE_FILE";
 108
 109     public static final String ACTION_OPERATION_ADDED = OperationsService.class.getName() + ".OPERATION_ADDED";
 110     public static final String ACTION_OPERATION_FINISHED = OperationsService.class.getName() + ".OPERATION_FINISHED";
 111
 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 ServiceHandler mOperationsHandler;
 137     private OperationsServiceBinder mOperationsBinder;
 138
 139     private SyncFolderHandler mSyncFolderHandler;
 140
 141     /**
 142      * Service initialization
 143      */
 144     @Override
 145     public void onCreate() {
 146         super.onCreate();
 147         /// First worker thread for most of operations
 148         HandlerThread thread = new HandlerThread("Operations thread", Process.THREAD_PRIORITY_BACKGROUND);
 149         thread.start();
 150         mOperationsHandler = new ServiceHandler(thread.getLooper(), this);
 151         mOperationsBinder = new OperationsServiceBinder(mOperationsHandler);
 152
 153         /// Separated worker thread for download of folders (WIP)
 154         thread = new HandlerThread("Syncfolder thread", Process.THREAD_PRIORITY_BACKGROUND);
 155         thread.start();
 156         mSyncFolderHandler = new SyncFolderHandler(thread.getLooper(), this);
 157     }
 158
 159
 160     /**
 161      * Entry point to add a new operation to the queue of operations.
 162      *
 163      * New operations are added calling to startService(), resulting in a call to this method.
 164      * This ensures the service will keep on working although the caller activity goes away.
 165      */
 166     @Override
 167     public int onStartCommand(Intent intent, int flags, int startId) {
 168         // WIP: for the moment, only SYNC_FOLDER and CANCEL_SYNC_FOLDER is expected here;
 169         // the rest of the operations are requested through the Binder
 170         if (ACTION_SYNC_FOLDER.equals(intent.getAction())) {
 171
 172             /*Log_OC.v("NOW " + TAG + ", thread " + Thread.currentThread().getName(), "Received request to sync folder");*/
 173
 174             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 175                 Log_OC.e(TAG, "Not enough information provided in intent");
 176                 return START_NOT_STICKY;
 177             }
 178             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 179             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 180
 181             Pair<Account, String> itemSyncKey =  new Pair<Account , String>(account, remotePath);
 182
 183             Pair<Target, RemoteOperation> itemToQueue = newOperation(intent);
 184             if (itemToQueue != null) {
 185                 mSyncFolderHandler.add(account, remotePath, (SynchronizeFolderOperation)itemToQueue.second);
 186                 Message msg = mSyncFolderHandler.obtainMessage();
 187                 msg.arg1 = startId;
 188                 msg.obj = itemSyncKey;
 189                 /*Log_OC.v(
 190                         "NOW " + TAG + ", thread " + Thread.currentThread().getName(),
 191                         "Sync folder " + remotePath + " added to queue"
 192                 );*/
 193                 mSyncFolderHandler.sendMessage(msg);
 194             }
 195
 196         } else {
 197             Message msg = mOperationsHandler.obtainMessage();
 198             msg.arg1 = startId;
 199             mOperationsHandler.sendMessage(msg);
 200         }
 201
 202         return START_NOT_STICKY;
 203     }
 204
 205     @Override
 206     public void onDestroy() {
 207         //Log_OC.wtf(TAG, "onDestroy init" );
 208         // Saving cookies
 209         try {
 210             OwnCloudClientManagerFactory.getDefaultSingleton().
 211                 saveAllClients(this, MainApp.getAccountType());
 212
 213             // TODO - get rid of these exceptions
 214         } catch (AccountNotFoundException e) {
 215             e.printStackTrace();
 216         } catch (AuthenticatorException e) {
 217             e.printStackTrace();
 218         } catch (OperationCanceledException e) {
 219             e.printStackTrace();
 220         } catch (IOException e) {
 221             e.printStackTrace();
 222         }
 223
 224         //Log_OC.wtf(TAG, "Clear mUndispatchedFinishedOperations" );
 225         mUndispatchedFinishedOperations.clear();
 226
 227         //Log_OC.wtf(TAG, "onDestroy end" );
 228         super.onDestroy();
 229     }
 230
 231     /**
 232      * Provides a binder object that clients can use to perform actions on the queue of operations,
 233      * except the addition of new operations.
 234      */
 235     @Override
 236     public IBinder onBind(Intent intent) {
 237         //Log_OC.wtf(TAG, "onBind" );
 238         return mOperationsBinder;
 239     }
 240
 241
 242     /**
 243      * Called when ALL the bound clients were unbound.
 244      */
 245     @Override
 246     public boolean onUnbind(Intent intent) {
 247         ((OperationsServiceBinder)mOperationsBinder).clearListeners();
 248         return false;   // not accepting rebinding (default behaviour)
 249     }
 250
 251
 252     /**
 253      *  Binder to let client components to perform actions on the queue of operations.
 254      *
 255      *  It provides by itself the available operations.
 256      */
 257     public class OperationsServiceBinder extends Binder /* implements OnRemoteOperationListener */ {
 258
 259         /**
 260          * Map of listeners that will be reported about the end of operations from a {@link OperationsServiceBinder} instance
 261          */
 262         private ConcurrentMap<OnRemoteOperationListener, Handler> mBoundListeners =
 263                 new ConcurrentHashMap<OnRemoteOperationListener, Handler>();
 264
 265         private ServiceHandler mServiceHandler = null;
 266
 267         public OperationsServiceBinder(ServiceHandler serviceHandler) {
 268             mServiceHandler = serviceHandler;
 269         }
 270
 271
 272         /**
 273          * Cancels a pending or current synchronization.
 274          *
 275          * @param account       ownCloud account where the remote folder is stored.
 276          * @param file          A folder in the queue of pending synchronizations
 277          */
 278         public void cancel(Account account, OCFile file) {
 279             /*Log_OC.v(
 280                     "NOW " + TAG + ", thread " + Thread.currentThread().getName(),
 281                     "Received request to cancel folder " + file.getRemotePath()
 282             );*/
 283             mSyncFolderHandler.cancel(account, file);
 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          * Returns True when the file described by 'file' in the ownCloud account 'account' is downloading or waiting
 369          * to download.
 370          *
 371          * If 'file' is a directory, returns 'true' if some of its descendant files is downloading or waiting
 372          * to download.
 373          *
 374          * @param account       ownCloud account where the remote file is stored.
 375          * @param remotePath    Path of the folder to check if something is synchronizing / downloading / uploading
 376          *                      inside.
 377          */
 378         public boolean isSynchronizing(Account account, String remotePath) {
 379             return mSyncFolderHandler.isSynchronizing(account, remotePath);
 380         }
 381
 382     }
 383
 384
 385     /**
 386      * Operations worker. Performs the pending operations in the order they were requested.
 387      *
 388      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 389      */
 390     private static class ServiceHandler extends Handler {
 391         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 392
 393
 394         OperationsService mService;
 395
 396
 397         private ConcurrentLinkedQueue<Pair<Target, RemoteOperation>> mPendingOperations =
 398                 new ConcurrentLinkedQueue<Pair<Target, RemoteOperation>>();
 399         private RemoteOperation mCurrentOperation = null;
 400         private Target mLastTarget = null;
 401         private OwnCloudClient mOwnCloudClient = null;
 402         private FileDataStorageManager mStorageManager;
 403
 404
 405         public ServiceHandler(Looper looper, OperationsService service) {
 406             super(looper);
 407             if (service == null) {
 408                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 409             }
 410             mService = service;
 411         }
 412
 413         @Override
 414         public void handleMessage(Message msg) {
 415             nextOperation();
 416             mService.stopSelf(msg.arg1);
 417         }
 418
 419
 420         /**
 421          * Performs the next operation in the queue
 422          */
 423         private void nextOperation() {
 424
 425             //Log_OC.wtf(TAG, "nextOperation init" );
 426
 427             Pair<Target, RemoteOperation> next = null;
 428             synchronized(mPendingOperations) {
 429                 next = mPendingOperations.peek();
 430             }
 431
 432             if (next != null) {
 433
 434                 mCurrentOperation = next.second;
 435                 RemoteOperationResult result = null;
 436                 try {
 437                     /// prepare client object to send the request to the ownCloud server
 438                     if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 439                         mLastTarget = next.first;
 440                         if (mLastTarget.mAccount != null) {
 441                             OwnCloudAccount ocAccount = new OwnCloudAccount(mLastTarget.mAccount, mService);
 442                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 443                                     getClientFor(ocAccount, mService);
 444                             mStorageManager = new FileDataStorageManager(
 445                                     mLastTarget.mAccount,
 446                                     mService.getContentResolver()
 447                             );
 448                         } else {
 449                             OwnCloudCredentials credentials = null;
 450                             if (mLastTarget.mUsername != null &&
 451                                     mLastTarget.mUsername.length() > 0) {
 452                                 credentials = OwnCloudCredentialsFactory.newBasicCredentials(
 453                                         mLastTarget.mUsername,
 454                                         mLastTarget.mPassword);  // basic
 455
 456                             } else if (mLastTarget.mAuthToken != null &&
 457                                     mLastTarget.mAuthToken.length() > 0) {
 458                                 credentials = OwnCloudCredentialsFactory.newBearerCredentials(
 459                                         mLastTarget.mAuthToken);  // bearer token
 460
 461                             } else if (mLastTarget.mCookie != null &&
 462                                     mLastTarget.mCookie.length() > 0) {
 463                                 credentials = OwnCloudCredentialsFactory.newSamlSsoCredentials(
 464                                         mLastTarget.mCookie); // SAML SSO
 465                             }
 466                             OwnCloudAccount ocAccount = new OwnCloudAccount(
 467                                     mLastTarget.mServerUrl, credentials);
 468                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 469                                     getClientFor(ocAccount, mService);
 470                             mStorageManager = null;
 471                         }
 472                     }
 473
 474                     /// perform the operation
 475                     if (mCurrentOperation instanceof SyncOperation) {
 476                         result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient, mStorageManager);
 477                     } else {
 478                         result = mCurrentOperation.execute(mOwnCloudClient);
 479                     }
 480
 481                 } catch (AccountsException e) {
 482                     if (mLastTarget.mAccount == null) {
 483                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 484                     } else {
 485                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 486                     }
 487                     result = new RemoteOperationResult(e);
 488
 489                 } catch (IOException e) {
 490                     if (mLastTarget.mAccount == null) {
 491                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 492                     } else {
 493                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 494                     }
 495                     result = new RemoteOperationResult(e);
 496                 } catch (Exception e) {
 497                     if (mLastTarget.mAccount == null) {
 498                         Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 499                     } else {
 500                         Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 501                     }
 502                     result = new RemoteOperationResult(e);
 503
 504                 } finally {
 505                     synchronized(mPendingOperations) {
 506                         mPendingOperations.poll();
 507                     }
 508                 }
 509
 510                 //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 511                 mService.dispatchResultToOperationListeners(mLastTarget, mCurrentOperation, result);
 512             }
 513         }
 514
 515
 516
 517     }
 518
 519
 520     /**
 521      * Creates a new operation, as described by operationIntent.
 522      *
 523      * TODO - move to ServiceHandler (probably)
 524      *
 525      * @param operationIntent       Intent describing a new operation to queue and execute.
 526      * @return                      Pair with the new operation object and the information about its target server.
 527      */
 528     private Pair<Target , RemoteOperation> newOperation(Intent operationIntent) {
 529         RemoteOperation operation = null;
 530         Target target = null;
 531         try {
 532             if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 533                     !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 534                 Log_OC.e(TAG, "Not enough information provided in intent");
 535
 536             } else {
 537                 Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 538                 String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 539                 String username = operationIntent.getStringExtra(EXTRA_USERNAME);
 540                 String password = operationIntent.getStringExtra(EXTRA_PASSWORD);
 541                 String authToken = operationIntent.getStringExtra(EXTRA_AUTH_TOKEN);
 542                 String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 543                 target = new Target(
 544                         account,
 545                         (serverUrl == null) ? null : Uri.parse(serverUrl),
 546                         username,
 547                         password,
 548                         authToken,
 549                         cookie
 550                 );
 551
 552                 String action = operationIntent.getAction();
 553                 if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 554                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 555                     Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 556                     if (remotePath.length() > 0) {
 557                         operation = new CreateShareOperation(OperationsService.this, remotePath, ShareType.PUBLIC_LINK,
 558                                 "", false, "", 1, sendIntent);
 559                     }
 560
 561                 } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 562                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 563                     if (remotePath.length() > 0) {
 564                         operation = new UnshareLinkOperation(
 565                                 remotePath,
 566                                 OperationsService.this);
 567                     }
 568
 569                 } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 570                     // check OC server and get basic information from it
 571                     operation = new GetServerInfoOperation(serverUrl, OperationsService.this);
 572
 573                 } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 574                     /// GET ACCESS TOKEN to the OAuth server
 575                     String oauth2QueryParameters =
 576                             operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 577                     operation = new OAuth2GetAccessToken(
 578                             getString(R.string.oauth2_client_id),
 579                             getString(R.string.oauth2_redirect_uri),
 580                             getString(R.string.oauth2_grant_type),
 581                             oauth2QueryParameters);
 582
 583                 } else if (action.equals(ACTION_EXISTENCE_CHECK)) {
 584                     // Existence Check
 585                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 586                     boolean successIfAbsent = operationIntent.getBooleanExtra(EXTRA_SUCCESS_IF_ABSENT, false);
 587                     operation = new ExistenceCheckRemoteOperation(remotePath, OperationsService.this, successIfAbsent);
 588
 589                 } else if (action.equals(ACTION_GET_USER_NAME)) {
 590                     // Get User Name
 591                     operation = new GetRemoteUserNameOperation();
 592
 593                 } else if (action.equals(ACTION_RENAME)) {
 594                     // Rename file or folder
 595                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 596                     String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 597                     operation = new RenameFileOperation(remotePath, newName);
 598
 599                 } else if (action.equals(ACTION_REMOVE)) {
 600                     // Remove file or folder
 601                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 602                     boolean onlyLocalCopy = operationIntent.getBooleanExtra(EXTRA_REMOVE_ONLY_LOCAL, false);
 603                     operation = new RemoveFileOperation(remotePath, onlyLocalCopy);
 604
 605                 } else if (action.equals(ACTION_CREATE_FOLDER)) {
 606                     // Create Folder
 607                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 608                     boolean createFullPath = operationIntent.getBooleanExtra(EXTRA_CREATE_FULL_PATH, true);
 609                     operation = new CreateFolderOperation(remotePath, createFullPath);
 610
 611                 } else if (action.equals(ACTION_SYNC_FILE)) {
 612                     // Sync file
 613                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 614                     boolean syncFileContents = operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 615                     operation = new SynchronizeFileOperation(
 616                             remotePath, account, syncFileContents, getApplicationContext()
 617                     );
 618
 619                 } else if (action.equals(ACTION_SYNC_FOLDER)) {
 620                     // Sync file
 621                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 622                     operation = new SynchronizeFolderOperation(
 623                             this,                       // TODO remove this dependency from construction time
 624                             remotePath,
 625                             account,
 626                             System.currentTimeMillis()  // TODO remove this dependency from construction time
 627                     );
 628
 629                 } else if (action.equals(ACTION_MOVE_FILE)) {
 630                     // Move file/folder
 631                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 632                     String newParentPath = operationIntent.getStringExtra(EXTRA_NEW_PARENT_PATH);
 633                     operation = new MoveFileOperation(remotePath,newParentPath,account);
 634                 }
 635
 636             }
 637
 638         } catch (IllegalArgumentException e) {
 639             Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 640             operation = null;
 641         }
 642
 643         if (operation != null) {
 644             return new Pair<Target , RemoteOperation>(target, operation);
 645         } else {
 646             return null;
 647         }
 648     }
 649
 650
 651     /**
 652      * Sends a broadcast when a new operation is added to the queue.
 653      *
 654      * Local broadcasts are only delivered to activities in the same process, but can't be done sticky :\
 655      *
 656      * @param target            Account or URL pointing to an OC server.
 657      * @param operation         Added operation.
 658      */
 659     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 660         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 661         if (target.mAccount != null) {
 662             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 663         } else {
 664             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 665         }
 666         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 667         //lbm.sendBroadcast(intent);
 668         sendStickyBroadcast(intent);
 669     }
 670
 671
 672     // TODO - maybe add a notification for real start of operations
 673
 674     /**
 675      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities can update their view
 676      *
 677      * Local broadcasts are only delivered to activities in the same process.
 678      *
 679      * @param target            Account or URL pointing to an OC server.
 680      * @param operation         Finished operation.
 681      * @param result            Result of the operation.
 682      */
 683     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation, RemoteOperationResult result) {
 684         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 685         intent.putExtra(EXTRA_RESULT, result);
 686         if (target.mAccount != null) {
 687             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 688         } else {
 689             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 690         }
 691         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 692         //lbm.sendBroadcast(intent);
 693         sendStickyBroadcast(intent);
 694     }
 695
 696
 697     /**
 698      * Notifies the currently subscribed listeners about the end of an operation.
 699      *
 700      * @param target            Account or URL pointing to an OC server.
 701      * @param operation         Finished operation.
 702      * @param result            Result of the operation.
 703      */
 704     protected void dispatchResultToOperationListeners(
 705             Target target, final RemoteOperation operation, final RemoteOperationResult result) {
 706         int count = 0;
 707         Iterator<OnRemoteOperationListener> listeners = mOperationsBinder.mBoundListeners.keySet().iterator();
 708         while (listeners.hasNext()) {
 709             final OnRemoteOperationListener listener = listeners.next();
 710             final Handler handler = mOperationsBinder.mBoundListeners.get(listener);
 711             if (handler != null) {
 712                 handler.post(new Runnable() {
 713                     @Override
 714                     public void run() {
 715                         listener.onRemoteOperationFinish(operation, result);
 716                     }
 717                 });
 718                 count += 1;
 719             }
 720         }
 721         if (count == 0) {
 722             //mOperationResults.put(operation.hashCode(), result);
 723             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 724                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 725             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 726         }
 727         Log_OC.d(TAG, "Called " + count + " listeners");
 728     }
 729 }