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             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
 190         } else {
 191             Message msg = mOperationsHandler.obtainMessage();
 192             msg.arg1 = startId;
 193             mOperationsHandler.sendMessage(msg);
 194         }
 195
 196         return START_NOT_STICKY;
 197     }
 198
 199     @Override
 200     public void onDestroy() {
 201         //Log_OC.wtf(TAG, "onDestroy init" );
 202         // Saving cookies
 203         try {
 204             OwnCloudClientManagerFactory.getDefaultSingleton().
 205                 saveAllClients(this, MainApp.getAccountType());
 206
 207             // TODO - get rid of these exceptions
 208         } catch (AccountNotFoundException e) {
 209             e.printStackTrace();
 210         } catch (AuthenticatorException e) {
 211             e.printStackTrace();
 212         } catch (OperationCanceledException e) {
 213             e.printStackTrace();
 214         } catch (IOException e) {
 215             e.printStackTrace();
 216         }
 217
 218         //Log_OC.wtf(TAG, "Clear mUndispatchedFinisiedOperations" );
 219         mUndispatchedFinishedOperations.clear();
 220
 221         //Log_OC.wtf(TAG, "onDestroy end" );
 222         super.onDestroy();
 223     }
 224
 225     /**
 226      * Provides a binder object that clients can use to perform actions on the queue of operations,
 227      * except the addition of new operations.
 228      */
 229     @Override
 230     public IBinder onBind(Intent intent) {
 231         //Log_OC.wtf(TAG, "onBind" );
 232         return mOperationsBinder;
 233     }
 234
 235
 236     /**
 237      * Called when ALL the bound clients were unbound.
 238      */
 239     @Override
 240     public boolean onUnbind(Intent intent) {
 241         ((OperationsServiceBinder)mOperationsBinder).clearListeners();
 242         return false;   // not accepting rebinding (default behaviour)
 243     }
 244
 245
 246     /**
 247      *  Binder to let client components to perform actions on the queue of operations.
 248      *
 249      *  It provides by itself the available operations.
 250      */
 251     public class OperationsServiceBinder extends Binder /* implements OnRemoteOperationListener */ {
 252
 253         /**
 254          * Map of listeners that will be reported about the end of operations from a {@link OperationsServiceBinder} instance
 255          */
 256         private ConcurrentMap<OnRemoteOperationListener, Handler> mBoundListeners =
 257                 new ConcurrentHashMap<OnRemoteOperationListener, Handler>();
 258
 259         private ServiceHandler mServiceHandler = null;
 260
 261         public OperationsServiceBinder(ServiceHandler serviceHandler) {
 262             mServiceHandler = serviceHandler;
 263         }
 264
 265
 266         /**
 267          * Cancels a pending or current synchronization.
 268          *
 269          * @param account       ownCloud account where the remote folder is stored.
 270          * @param file          A folder in the queue of pending synchronizations
 271          */
 272         public void cancel(Account account, OCFile file) {
 273             mSyncFolderHandler.cancel(account, file);
 274         }
 275
 276
 277         public void clearListeners() {
 278
 279             mBoundListeners.clear();
 280         }
 281
 282
 283         /**
 284          * Adds a listener interested in being reported about the end of operations.
 285          *
 286          * @param listener          Object to notify about the end of operations.
 287          * @param callbackHandler   {@link Handler} to access the listener without breaking Android threading protection.
 288          */
 289         public void addOperationListener (OnRemoteOperationListener listener, Handler callbackHandler) {
 290             synchronized (mBoundListeners) {
 291                 mBoundListeners.put(listener, callbackHandler);
 292             }
 293         }
 294
 295
 296         /**
 297          * Removes a listener from the list of objects interested in the being reported about the end of operations.
 298          *
 299          * @param listener      Object to notify about progress of transfer.
 300          */
 301         public void removeOperationListener (OnRemoteOperationListener listener) {
 302             synchronized (mBoundListeners) {
 303                 mBoundListeners.remove(listener);
 304             }
 305         }
 306
 307
 308         /**
 309          * TODO - IMPORTANT: update implementation when more operations are moved into the service
 310          *
 311          * @return  'True' when an operation that enforces the user to wait for completion is in process.
 312          */
 313         public boolean isPerformingBlockingOperation() {
 314             return (!mServiceHandler.mPendingOperations.isEmpty());
 315         }
 316
 317
 318         /**
 319          * Creates and adds to the queue a new operation, as described by operationIntent.
 320          *
 321          * Calls startService to make the operation is processed by the ServiceHandler.
 322          *
 323          * @param operationIntent       Intent describing a new operation to queue and execute.
 324          * @return                      Identifier of the operation created, or null if failed.
 325          */
 326         public long queueNewOperation(Intent operationIntent) {
 327             Pair<Target, RemoteOperation> itemToQueue = newOperation(operationIntent);
 328             if (itemToQueue != null) {
 329                 mServiceHandler.mPendingOperations.add(itemToQueue);
 330                 startService(new Intent(OperationsService.this, OperationsService.class));
 331                 return itemToQueue.second.hashCode();
 332
 333             } else {
 334                 return Long.MAX_VALUE;
 335             }
 336         }
 337
 338
 339         public boolean dispatchResultIfFinished(int operationId, OnRemoteOperationListener listener) {
 340             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 341                     mUndispatchedFinishedOperations.remove(operationId);
 342             if (undispatched != null) {
 343                 listener.onRemoteOperationFinish(undispatched.first, undispatched.second);
 344                 return true;
 345                 //Log_OC.wtf(TAG, "Sending callback later");
 346             } else {
 347                 if (!mServiceHandler.mPendingOperations.isEmpty()) {
 348                     return true;
 349                 } else {
 350                     return false;
 351                 }
 352                 //Log_OC.wtf(TAG, "Not finished yet");
 353             }
 354         }
 355
 356
 357         /**
 358          * Returns True when the file described by 'file' in the ownCloud account 'account' is downloading or waiting
 359          * to download.
 360          *
 361          * If 'file' is a directory, returns 'true' if some of its descendant files is downloading or waiting
 362          * to download.
 363          *
 364          * @param account       ownCloud account where the remote file is stored.
 365          * @param remotePath    Path of the folder to check if something is synchronizing / downloading / uploading
 366          *                      inside.
 367          */
 368         public boolean isSynchronizing(Account account, String remotePath) {
 369             return mSyncFolderHandler.isSynchronizing(account, remotePath);
 370         }
 371
 372     }
 373
 374
 375     /**
 376      * Operations worker. Performs the pending operations in the order they were requested.
 377      *
 378      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 379      */
 380     private static class ServiceHandler extends Handler {
 381         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 382
 383
 384         OperationsService mService;
 385
 386
 387         private ConcurrentLinkedQueue<Pair<Target, RemoteOperation>> mPendingOperations =
 388                 new ConcurrentLinkedQueue<Pair<Target, RemoteOperation>>();
 389         private RemoteOperation mCurrentOperation = null;
 390         private Target mLastTarget = null;
 391         private OwnCloudClient mOwnCloudClient = null;
 392         private FileDataStorageManager mStorageManager;
 393
 394
 395         public ServiceHandler(Looper looper, OperationsService service) {
 396             super(looper);
 397             if (service == null) {
 398                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 399             }
 400             mService = service;
 401         }
 402
 403         @Override
 404         public void handleMessage(Message msg) {
 405             nextOperation();
 406             mService.stopSelf(msg.arg1);
 407         }
 408
 409
 410         /**
 411          * Performs the next operation in the queue
 412          */
 413         private void nextOperation() {
 414
 415             //Log_OC.wtf(TAG, "nextOperation init" );
 416
 417             Pair<Target, RemoteOperation> next = null;
 418             synchronized(mPendingOperations) {
 419                 next = mPendingOperations.peek();
 420             }
 421
 422             if (next != null) {
 423
 424                 mCurrentOperation = next.second;
 425                 RemoteOperationResult result = null;
 426                 try {
 427                     /// prepare client object to send the request to the ownCloud server
 428                     if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 429                         mLastTarget = next.first;
 430                         if (mLastTarget.mAccount != null) {
 431                             OwnCloudAccount ocAccount = new OwnCloudAccount(mLastTarget.mAccount, mService);
 432                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 433                                     getClientFor(ocAccount, mService);
 434                             mStorageManager = new FileDataStorageManager(
 435                                     mLastTarget.mAccount,
 436                                     mService.getContentResolver()
 437                             );
 438                         } else {
 439                             OwnCloudCredentials credentials = null;
 440                             if (mLastTarget.mUsername != null &&
 441                                     mLastTarget.mUsername.length() > 0) {
 442                                 credentials = OwnCloudCredentialsFactory.newBasicCredentials(
 443                                         mLastTarget.mUsername,
 444                                         mLastTarget.mPassword);  // basic
 445
 446                             } else if (mLastTarget.mAuthToken != null &&
 447                                     mLastTarget.mAuthToken.length() > 0) {
 448                                 credentials = OwnCloudCredentialsFactory.newBearerCredentials(
 449                                         mLastTarget.mAuthToken);  // bearer token
 450
 451                             } else if (mLastTarget.mCookie != null &&
 452                                     mLastTarget.mCookie.length() > 0) {
 453                                 credentials = OwnCloudCredentialsFactory.newSamlSsoCredentials(
 454                                         mLastTarget.mCookie); // SAML SSO
 455                             }
 456                             OwnCloudAccount ocAccount = new OwnCloudAccount(
 457                                     mLastTarget.mServerUrl, credentials);
 458                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 459                                     getClientFor(ocAccount, mService);
 460                             mStorageManager = null;
 461                         }
 462                     }
 463
 464                     /// perform the operation
 465                     if (mCurrentOperation instanceof SyncOperation) {
 466                         result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient, mStorageManager);
 467                     } else {
 468                         result = mCurrentOperation.execute(mOwnCloudClient);
 469                     }
 470
 471                 } catch (AccountsException e) {
 472                     if (mLastTarget.mAccount == null) {
 473                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 474                     } else {
 475                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 476                     }
 477                     result = new RemoteOperationResult(e);
 478
 479                 } catch (IOException e) {
 480                     if (mLastTarget.mAccount == null) {
 481                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 482                     } else {
 483                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 484                     }
 485                     result = new RemoteOperationResult(e);
 486                 } catch (Exception e) {
 487                     if (mLastTarget.mAccount == null) {
 488                         Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 489                     } else {
 490                         Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 491                     }
 492                     result = new RemoteOperationResult(e);
 493
 494                 } finally {
 495                     synchronized(mPendingOperations) {
 496                         mPendingOperations.poll();
 497                     }
 498                 }
 499
 500                 //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 501                 mService.dispatchResultToOperationListeners(mLastTarget, mCurrentOperation, result);
 502             }
 503         }
 504
 505
 506
 507     }
 508
 509
 510     /**
 511      * Creates a new operation, as described by operationIntent.
 512      *
 513      * TODO - move to ServiceHandler (probably)
 514      *
 515      * @param operationIntent       Intent describing a new operation to queue and execute.
 516      * @return                      Pair with the new operation object and the information about its target server.
 517      */
 518     private Pair<Target , RemoteOperation> newOperation(Intent operationIntent) {
 519         RemoteOperation operation = null;
 520         Target target = null;
 521         try {
 522             if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 523                     !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 524                 Log_OC.e(TAG, "Not enough information provided in intent");
 525
 526             } else {
 527                 Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 528                 String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 529                 String username = operationIntent.getStringExtra(EXTRA_USERNAME);
 530                 String password = operationIntent.getStringExtra(EXTRA_PASSWORD);
 531                 String authToken = operationIntent.getStringExtra(EXTRA_AUTH_TOKEN);
 532                 String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 533                 target = new Target(
 534                         account,
 535                         (serverUrl == null) ? null : Uri.parse(serverUrl),
 536                         username,
 537                         password,
 538                         authToken,
 539                         cookie
 540                 );
 541
 542                 String action = operationIntent.getAction();
 543                 if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 544                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 545                     Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 546                     if (remotePath.length() > 0) {
 547                         operation = new CreateShareOperation(OperationsService.this, remotePath, ShareType.PUBLIC_LINK,
 548                                 "", false, "", 1, sendIntent);
 549                     }
 550
 551                 } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 552                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 553                     if (remotePath.length() > 0) {
 554                         operation = new UnshareLinkOperation(
 555                                 remotePath,
 556                                 OperationsService.this);
 557                     }
 558
 559                 } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 560                     // check OC server and get basic information from it
 561                     operation = new GetServerInfoOperation(serverUrl, OperationsService.this);
 562
 563                 } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 564                     /// GET ACCESS TOKEN to the OAuth server
 565                     String oauth2QueryParameters =
 566                             operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 567                     operation = new OAuth2GetAccessToken(
 568                             getString(R.string.oauth2_client_id),
 569                             getString(R.string.oauth2_redirect_uri),
 570                             getString(R.string.oauth2_grant_type),
 571                             oauth2QueryParameters);
 572
 573                 } else if (action.equals(ACTION_EXISTENCE_CHECK)) {
 574                     // Existence Check
 575                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 576                     boolean successIfAbsent = operationIntent.getBooleanExtra(EXTRA_SUCCESS_IF_ABSENT, false);
 577                     operation = new ExistenceCheckRemoteOperation(remotePath, OperationsService.this, successIfAbsent);
 578
 579                 } else if (action.equals(ACTION_GET_USER_NAME)) {
 580                     // Get User Name
 581                     operation = new GetRemoteUserNameOperation();
 582
 583                 } else if (action.equals(ACTION_RENAME)) {
 584                     // Rename file or folder
 585                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 586                     String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 587                     operation = new RenameFileOperation(remotePath, newName);
 588
 589                 } else if (action.equals(ACTION_REMOVE)) {
 590                     // Remove file or folder
 591                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 592                     boolean onlyLocalCopy = operationIntent.getBooleanExtra(EXTRA_REMOVE_ONLY_LOCAL, false);
 593                     operation = new RemoveFileOperation(remotePath, onlyLocalCopy);
 594
 595                 } else if (action.equals(ACTION_CREATE_FOLDER)) {
 596                     // Create Folder
 597                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 598                     boolean createFullPath = operationIntent.getBooleanExtra(EXTRA_CREATE_FULL_PATH, true);
 599                     operation = new CreateFolderOperation(remotePath, createFullPath);
 600
 601                 } else if (action.equals(ACTION_SYNC_FILE)) {
 602                     // Sync file
 603                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 604                     boolean syncFileContents = operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 605                     operation = new SynchronizeFileOperation(
 606                             remotePath, account, syncFileContents, getApplicationContext()
 607                     );
 608
 609                 } else if (action.equals(ACTION_SYNC_FOLDER)) {
 610                     // Sync file
 611                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 612                     operation = new SynchronizeFolderOperation(
 613                             this,                       // TODO remove this dependency from construction time
 614                             remotePath,
 615                             account,
 616                             System.currentTimeMillis()  // TODO remove this dependency from construction time
 617                     );
 618
 619                 } else if (action.equals(ACTION_MOVE_FILE)) {
 620                     // Move file/folder
 621                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 622                     String newParentPath = operationIntent.getStringExtra(EXTRA_NEW_PARENT_PATH);
 623                     operation = new MoveFileOperation(remotePath,newParentPath,account);
 624                 }
 625
 626             }
 627
 628         } catch (IllegalArgumentException e) {
 629             Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 630             operation = null;
 631         }
 632
 633         if (operation != null) {
 634             return new Pair<Target , RemoteOperation>(target, operation);
 635         } else {
 636             return null;
 637         }
 638     }
 639
 640
 641     /**
 642      * Sends a broadcast when a new operation is added to the queue.
 643      *
 644      * Local broadcasts are only delivered to activities in the same process, but can't be done sticky :\
 645      *
 646      * @param target            Account or URL pointing to an OC server.
 647      * @param operation         Added operation.
 648      */
 649     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 650         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 651         if (target.mAccount != null) {
 652             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 653         } else {
 654             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 655         }
 656         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 657         //lbm.sendBroadcast(intent);
 658         sendStickyBroadcast(intent);
 659     }
 660
 661
 662     // TODO - maybe add a notification for real start of operations
 663
 664     /**
 665      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities can update their view
 666      *
 667      * Local broadcasts are only delivered to activities in the same process.
 668      *
 669      * @param target            Account or URL pointing to an OC server.
 670      * @param operation         Finished operation.
 671      * @param result            Result of the operation.
 672      */
 673     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation, RemoteOperationResult result) {
 674         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 675         intent.putExtra(EXTRA_RESULT, result);
 676         if (target.mAccount != null) {
 677             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 678         } else {
 679             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 680         }
 681         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 682         //lbm.sendBroadcast(intent);
 683         sendStickyBroadcast(intent);
 684     }
 685
 686
 687     /**
 688      * Notifies the currently subscribed listeners about the end of an operation.
 689      *
 690      * @param target            Account or URL pointing to an OC server.
 691      * @param operation         Finished operation.
 692      * @param result            Result of the operation.
 693      */
 694     protected void dispatchResultToOperationListeners(
 695             Target target, final RemoteOperation operation, final RemoteOperationResult result) {
 696         int count = 0;
 697         Iterator<OnRemoteOperationListener> listeners = mOperationsBinder.mBoundListeners.keySet().iterator();
 698         while (listeners.hasNext()) {
 699             final OnRemoteOperationListener listener = listeners.next();
 700             final Handler handler = mOperationsBinder.mBoundListeners.get(listener);
 701             if (handler != null) {
 702                 handler.post(new Runnable() {
 703                     @Override
 704                     public void run() {
 705                         listener.onRemoteOperationFinish(operation, result);
 706                     }
 707                 });
 708                 count += 1;
 709             }
 710         }
 711         if (count == 0) {
 712             //mOperationResults.put(operation.hashCode(), result);
 713             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 714                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 715             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 716         }
 717         Log_OC.d(TAG, "Called " + count + " listeners");
 718     }
 719 }