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         Log_OC.d(TAG, "Creating service");
 148
 149         /// First worker thread for most of operations
 150         HandlerThread thread = new HandlerThread("Operations thread", Process.THREAD_PRIORITY_BACKGROUND);
 151         thread.start();
 152         mOperationsHandler = new ServiceHandler(thread.getLooper(), this);
 153         mOperationsBinder = new OperationsServiceBinder(mOperationsHandler);
 154
 155         /// Separated worker thread for download of folders (WIP)
 156         thread = new HandlerThread("Syncfolder thread", Process.THREAD_PRIORITY_BACKGROUND);
 157         thread.start();
 158         mSyncFolderHandler = new SyncFolderHandler(thread.getLooper(), this);
 159     }
 160
 161
 162     /**
 163      * Entry point to add a new operation to the queue of operations.
 164      *
 165      * New operations are added calling to startService(), resulting in a call to this method.
 166      * This ensures the service will keep on working although the caller activity goes away.
 167      */
 168     @Override
 169     public int onStartCommand(Intent intent, int flags, int startId) {
 170         Log_OC.d(TAG, "Starting command with id " + startId);
 171
 172         // WIP: for the moment, only SYNC_FOLDER is expected here;
 173         // the rest of the operations are requested through the Binder
 174         if (ACTION_SYNC_FOLDER.equals(intent.getAction())) {
 175
 176             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 177                 Log_OC.e(TAG, "Not enough information provided in intent");
 178                 return START_NOT_STICKY;
 179             }
 180             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 181             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 182
 183             Pair<Account, String> itemSyncKey =  new Pair<Account , String>(account, remotePath);
 184
 185             Pair<Target, RemoteOperation> itemToQueue = newOperation(intent);
 186             if (itemToQueue != null) {
 187                 mSyncFolderHandler.add(account, remotePath, (SynchronizeFolderOperation)itemToQueue.second);
 188                 Message msg = mSyncFolderHandler.obtainMessage();
 189                 msg.arg1 = startId;
 190                 msg.obj = itemSyncKey;
 191                 mSyncFolderHandler.sendMessage(msg);
 192             }
 193
 194         } else {
 195             Message msg = mOperationsHandler.obtainMessage();
 196             msg.arg1 = startId;
 197             mOperationsHandler.sendMessage(msg);
 198         }
 199
 200         return START_NOT_STICKY;
 201     }
 202
 203     @Override
 204     public void onDestroy() {
 205         Log_OC.v(TAG, "Destroying service" );
 206         // Saving cookies
 207         try {
 208             OwnCloudClientManagerFactory.getDefaultSingleton().
 209                 saveAllClients(this, MainApp.getAccountType());
 210
 211             // TODO - get rid of these exceptions
 212         } catch (AccountNotFoundException e) {
 213             e.printStackTrace();
 214         } catch (AuthenticatorException e) {
 215             e.printStackTrace();
 216         } catch (OperationCanceledException e) {
 217             e.printStackTrace();
 218         } catch (IOException e) {
 219             e.printStackTrace();
 220         }
 221
 222         mUndispatchedFinishedOperations.clear();
 223
 224         mOperationsBinder = null;
 225
 226         mOperationsHandler.getLooper().quit();
 227         mOperationsHandler = null;
 228
 229         mSyncFolderHandler.getLooper().quit();
 230         mSyncFolderHandler = null;
 231
 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         public OperationsServiceBinder(ServiceHandler serviceHandler) {
 272             mServiceHandler = serviceHandler;
 273         }
 274
 275
 276         /**
 277          * Cancels a pending or current synchronization.
 278          *
 279          * @param account       ownCloud account where the remote folder is stored.
 280          * @param file          A folder in the queue of pending synchronizations
 281          */
 282         public void cancel(Account account, OCFile file) {
 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             Log_OC.d(TAG, "Stopping after command with id " + msg.arg1);
 417             mService.stopSelf(msg.arg1);
 418         }
 419
 420
 421         /**
 422          * Performs the next operation in the queue
 423          */
 424         private void nextOperation() {
 425
 426             //Log_OC.wtf(TAG, "nextOperation init" );
 427
 428             Pair<Target, RemoteOperation> next = null;
 429             synchronized(mPendingOperations) {
 430                 next = mPendingOperations.peek();
 431             }
 432
 433             if (next != null) {
 434
 435                 mCurrentOperation = next.second;
 436                 RemoteOperationResult result = null;
 437                 try {
 438                     /// prepare client object to send the request to the ownCloud server
 439                     if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 440                         mLastTarget = next.first;
 441                         if (mLastTarget.mAccount != null) {
 442                             OwnCloudAccount ocAccount = new OwnCloudAccount(mLastTarget.mAccount, mService);
 443                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 444                                     getClientFor(ocAccount, mService);
 445                             mStorageManager = new FileDataStorageManager(
 446                                     mLastTarget.mAccount,
 447                                     mService.getContentResolver()
 448                             );
 449                         } else {
 450                             OwnCloudCredentials credentials = null;
 451                             if (mLastTarget.mUsername != null &&
 452                                     mLastTarget.mUsername.length() > 0) {
 453                                 credentials = OwnCloudCredentialsFactory.newBasicCredentials(
 454                                         mLastTarget.mUsername,
 455                                         mLastTarget.mPassword);  // basic
 456
 457                             } else if (mLastTarget.mAuthToken != null &&
 458                                     mLastTarget.mAuthToken.length() > 0) {
 459                                 credentials = OwnCloudCredentialsFactory.newBearerCredentials(
 460                                         mLastTarget.mAuthToken);  // bearer token
 461
 462                             } else if (mLastTarget.mCookie != null &&
 463                                     mLastTarget.mCookie.length() > 0) {
 464                                 credentials = OwnCloudCredentialsFactory.newSamlSsoCredentials(
 465                                         mLastTarget.mCookie); // SAML SSO
 466                             }
 467                             OwnCloudAccount ocAccount = new OwnCloudAccount(
 468                                     mLastTarget.mServerUrl, credentials);
 469                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 470                                     getClientFor(ocAccount, mService);
 471                             mStorageManager = null;
 472                         }
 473                     }
 474
 475                     /// perform the operation
 476                     if (mCurrentOperation instanceof SyncOperation) {
 477                         result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient, mStorageManager);
 478                     } else {
 479                         result = mCurrentOperation.execute(mOwnCloudClient);
 480                     }
 481
 482                 } catch (AccountsException e) {
 483                     if (mLastTarget.mAccount == null) {
 484                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 485                     } else {
 486                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 487                     }
 488                     result = new RemoteOperationResult(e);
 489
 490                 } catch (IOException e) {
 491                     if (mLastTarget.mAccount == null) {
 492                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 493                     } else {
 494                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 495                     }
 496                     result = new RemoteOperationResult(e);
 497                 } catch (Exception e) {
 498                     if (mLastTarget.mAccount == null) {
 499                         Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 500                     } else {
 501                         Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 502                     }
 503                     result = new RemoteOperationResult(e);
 504
 505                 } finally {
 506                     synchronized(mPendingOperations) {
 507                         mPendingOperations.poll();
 508                     }
 509                 }
 510
 511                 //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 512                 mService.dispatchResultToOperationListeners(mLastTarget, mCurrentOperation, result);
 513             }
 514         }
 515
 516
 517
 518     }
 519
 520
 521     /**
 522      * Creates a new operation, as described by operationIntent.
 523      *
 524      * TODO - move to ServiceHandler (probably)
 525      *
 526      * @param operationIntent       Intent describing a new operation to queue and execute.
 527      * @return                      Pair with the new operation object and the information about its target server.
 528      */
 529     private Pair<Target , RemoteOperation> newOperation(Intent operationIntent) {
 530         RemoteOperation operation = null;
 531         Target target = null;
 532         try {
 533             if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 534                     !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 535                 Log_OC.e(TAG, "Not enough information provided in intent");
 536
 537             } else {
 538                 Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 539                 String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 540                 String username = operationIntent.getStringExtra(EXTRA_USERNAME);
 541                 String password = operationIntent.getStringExtra(EXTRA_PASSWORD);
 542                 String authToken = operationIntent.getStringExtra(EXTRA_AUTH_TOKEN);
 543                 String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 544                 target = new Target(
 545                         account,
 546                         (serverUrl == null) ? null : Uri.parse(serverUrl),
 547                         username,
 548                         password,
 549                         authToken,
 550                         cookie
 551                 );
 552
 553                 String action = operationIntent.getAction();
 554                 if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 555                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 556                     Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 557                     if (remotePath.length() > 0) {
 558                         operation = new CreateShareOperation(OperationsService.this, remotePath, ShareType.PUBLIC_LINK,
 559                                 "", false, "", 1, sendIntent);
 560                     }
 561
 562                 } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 563                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 564                     if (remotePath.length() > 0) {
 565                         operation = new UnshareLinkOperation(
 566                                 remotePath,
 567                                 OperationsService.this);
 568                     }
 569
 570                 } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 571                     // check OC server and get basic information from it
 572                     operation = new GetServerInfoOperation(serverUrl, OperationsService.this);
 573
 574                 } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 575                     /// GET ACCESS TOKEN to the OAuth server
 576                     String oauth2QueryParameters =
 577                             operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 578                     operation = new OAuth2GetAccessToken(
 579                             getString(R.string.oauth2_client_id),
 580                             getString(R.string.oauth2_redirect_uri),
 581                             getString(R.string.oauth2_grant_type),
 582                             oauth2QueryParameters);
 583
 584                 } else if (action.equals(ACTION_EXISTENCE_CHECK)) {
 585                     // Existence Check
 586                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 587                     boolean successIfAbsent = operationIntent.getBooleanExtra(EXTRA_SUCCESS_IF_ABSENT, false);
 588                     operation = new ExistenceCheckRemoteOperation(remotePath, OperationsService.this, successIfAbsent);
 589
 590                 } else if (action.equals(ACTION_GET_USER_NAME)) {
 591                     // Get User Name
 592                     operation = new GetRemoteUserNameOperation();
 593
 594                 } else if (action.equals(ACTION_RENAME)) {
 595                     // Rename file or folder
 596                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 597                     String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 598                     operation = new RenameFileOperation(remotePath, newName);
 599
 600                 } else if (action.equals(ACTION_REMOVE)) {
 601                     // Remove file or folder
 602                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 603                     boolean onlyLocalCopy = operationIntent.getBooleanExtra(EXTRA_REMOVE_ONLY_LOCAL, false);
 604                     operation = new RemoveFileOperation(remotePath, onlyLocalCopy);
 605
 606                 } else if (action.equals(ACTION_CREATE_FOLDER)) {
 607                     // Create Folder
 608                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 609                     boolean createFullPath = operationIntent.getBooleanExtra(EXTRA_CREATE_FULL_PATH, true);
 610                     operation = new CreateFolderOperation(remotePath, createFullPath);
 611
 612                 } else if (action.equals(ACTION_SYNC_FILE)) {
 613                     // Sync file
 614                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 615                     boolean syncFileContents = operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 616                     operation = new SynchronizeFileOperation(
 617                             remotePath, account, syncFileContents, getApplicationContext()
 618                     );
 619
 620                 } else if (action.equals(ACTION_SYNC_FOLDER)) {
 621                     // Sync file
 622                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 623                     operation = new SynchronizeFolderOperation(
 624                             this,                       // TODO remove this dependency from construction time
 625                             remotePath,
 626                             account,
 627                             System.currentTimeMillis()  // TODO remove this dependency from construction time
 628                     );
 629
 630                 } else if (action.equals(ACTION_MOVE_FILE)) {
 631                     // Move file/folder
 632                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 633                     String newParentPath = operationIntent.getStringExtra(EXTRA_NEW_PARENT_PATH);
 634                     operation = new MoveFileOperation(remotePath,newParentPath,account);
 635                 }
 636
 637             }
 638
 639         } catch (IllegalArgumentException e) {
 640             Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 641             operation = null;
 642         }
 643
 644         if (operation != null) {
 645             return new Pair<Target , RemoteOperation>(target, operation);
 646         } else {
 647             return null;
 648         }
 649     }
 650
 651
 652     /**
 653      * Sends a broadcast when a new operation is added to the queue.
 654      *
 655      * Local broadcasts are only delivered to activities in the same process, but can't be done sticky :\
 656      *
 657      * @param target            Account or URL pointing to an OC server.
 658      * @param operation         Added operation.
 659      */
 660     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 661         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 662         if (target.mAccount != null) {
 663             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 664         } else {
 665             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 666         }
 667         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 668         //lbm.sendBroadcast(intent);
 669         sendStickyBroadcast(intent);
 670     }
 671
 672
 673     // TODO - maybe add a notification for real start of operations
 674
 675     /**
 676      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities can update their view
 677      *
 678      * Local broadcasts are only delivered to activities in the same process.
 679      *
 680      * @param target            Account or URL pointing to an OC server.
 681      * @param operation         Finished operation.
 682      * @param result            Result of the operation.
 683      */
 684     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation, RemoteOperationResult result) {
 685         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 686         intent.putExtra(EXTRA_RESULT, result);
 687         if (target.mAccount != null) {
 688             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 689         } else {
 690             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 691         }
 692         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 693         //lbm.sendBroadcast(intent);
 694         sendStickyBroadcast(intent);
 695     }
 696
 697
 698     /**
 699      * Notifies the currently subscribed listeners about the end of an operation.
 700      *
 701      * @param target            Account or URL pointing to an OC server.
 702      * @param operation         Finished operation.
 703      * @param result            Result of the operation.
 704      */
 705     protected void dispatchResultToOperationListeners(
 706             Target target, final RemoteOperation operation, final RemoteOperationResult result) {
 707         int count = 0;
 708         Iterator<OnRemoteOperationListener> listeners = mOperationsBinder.mBoundListeners.keySet().iterator();
 709         while (listeners.hasNext()) {
 710             final OnRemoteOperationListener listener = listeners.next();
 711             final Handler handler = mOperationsBinder.mBoundListeners.get(listener);
 712             if (handler != null) {
 713                 handler.post(new Runnable() {
 714                     @Override
 715                     public void run() {
 716                         listener.onRemoteOperationFinish(operation, result);
 717                     }
 718                 });
 719                 count += 1;
 720             }
 721         }
 722         if (count == 0) {
 723             //mOperationResults.put(operation.hashCode(), result);
 724             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 725                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 726             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 727         }
 728         Log_OC.d(TAG, "Called " + count + " listeners");
 729     }
 730 }