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.files.services.FileDownloader;
  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 import com.owncloud.android.utils.FileStorageUtils;
  55
  56 import android.accounts.Account;
  57 import android.accounts.AccountsException;
  58 import android.accounts.AuthenticatorException;
  59 import android.accounts.OperationCanceledException;
  60 import android.app.Service;
  61 import android.content.Intent;
  62 import android.net.Uri;
  63 import android.os.Binder;
  64 import android.os.Handler;
  65 import android.os.HandlerThread;
  66 import android.os.IBinder;
  67 import android.os.Looper;
  68 import android.os.Message;
  69 import android.os.Process;
  70 import android.util.Pair;
  71
  72 public class OperationsService extends Service {
  73
  74     private static final String TAG = OperationsService.class.getSimpleName();
  75
  76     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  77     public static final String EXTRA_SERVER_URL = "SERVER_URL";
  78     public static final String EXTRA_OAUTH2_QUERY_PARAMETERS = "OAUTH2_QUERY_PARAMETERS";
  79     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  80     public static final String EXTRA_SEND_INTENT = "SEND_INTENT";
  81     public static final String EXTRA_NEWNAME = "NEWNAME";
  82     public static final String EXTRA_REMOVE_ONLY_LOCAL = "REMOVE_LOCAL_COPY";
  83     public static final String EXTRA_CREATE_FULL_PATH = "CREATE_FULL_PATH";
  84     public static final String EXTRA_SYNC_FILE_CONTENTS = "SYNC_FILE_CONTENTS";
  85     public static final String EXTRA_RESULT = "RESULT";
  86     public static final String EXTRA_NEW_PARENT_PATH = "NEW_PARENT_PATH";
  87
  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             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 172                 Log_OC.e(TAG, "Not enough information provided in intent");
 173                 return START_NOT_STICKY;
 174             }
 175             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 176             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 177
 178             Pair<Account, String> itemSyncKey =  new Pair<Account , String>(account, remotePath);
 179
 180             Pair<Target, RemoteOperation> itemToQueue = newOperation(intent);
 181             if (itemToQueue != null) {
 182                 mSyncFolderHandler.add(account, remotePath, (SynchronizeFolderOperation)itemToQueue.second);
 183                 sendBroadcastNewSyncFolder(account, remotePath);
 184                 Message msg = mSyncFolderHandler.obtainMessage();
 185                 msg.arg1 = startId;
 186                 msg.obj = itemSyncKey;
 187                 mSyncFolderHandler.sendMessage(msg);
 188             }
 189         } else if (ACTION_CANCEL_SYNC_FOLDER.equals(intent.getAction())) {
 190             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 191                 Log_OC.e(TAG, "Not enough information provided in intent");
 192                 return START_NOT_STICKY;
 193             }
 194             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 195             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 196
 197             // Cancel operation
 198             mSyncFolderHandler.cancel(account,remotePath);
 199         } else {
 200             Message msg = mOperationsHandler.obtainMessage();
 201             msg.arg1 = startId;
 202             mOperationsHandler.sendMessage(msg);
 203         }
 204
 205         return START_NOT_STICKY;
 206     }
 207
 208     /**
 209      * TODO remove this method when "folder synchronization" replaces "folder download"; this is a fast and ugly
 210      * patch.
 211      */
 212     private void sendBroadcastNewSyncFolder(Account account, String remotePath) {
 213         Intent added = new Intent(FileDownloader.getDownloadAddedMessage());
 214         added.putExtra(FileDownloader.ACCOUNT_NAME, account.name);
 215         added.putExtra(FileDownloader.EXTRA_REMOTE_PATH, remotePath);
 216         added.putExtra(FileDownloader.EXTRA_FILE_PATH, FileStorageUtils.getSavePath(account.name) + remotePath);
 217         sendStickyBroadcast(added);
 218     }
 219
 220
 221     @Override
 222     public void onDestroy() {
 223         //Log_OC.wtf(TAG, "onDestroy init" );
 224         // Saving cookies
 225         try {
 226             OwnCloudClientManagerFactory.getDefaultSingleton().
 227                 saveAllClients(this, MainApp.getAccountType());
 228
 229             // TODO - get rid of these exceptions
 230         } catch (AccountNotFoundException e) {
 231             e.printStackTrace();
 232         } catch (AuthenticatorException e) {
 233             e.printStackTrace();
 234         } catch (OperationCanceledException e) {
 235             e.printStackTrace();
 236         } catch (IOException e) {
 237             e.printStackTrace();
 238         }
 239
 240         //Log_OC.wtf(TAG, "Clear mUndispatchedFinisiedOperations" );
 241         mUndispatchedFinishedOperations.clear();
 242
 243         //Log_OC.wtf(TAG, "onDestroy end" );
 244         super.onDestroy();
 245     }
 246
 247     /**
 248      * Provides a binder object that clients can use to perform actions on the queue of operations,
 249      * except the addition of new operations.
 250      */
 251     @Override
 252     public IBinder onBind(Intent intent) {
 253         //Log_OC.wtf(TAG, "onBind" );
 254         return mOperationsBinder;
 255     }
 256
 257
 258     /**
 259      * Called when ALL the bound clients were unbound.
 260      */
 261     @Override
 262     public boolean onUnbind(Intent intent) {
 263         ((OperationsServiceBinder)mOperationsBinder).clearListeners();
 264         return false;   // not accepting rebinding (default behaviour)
 265     }
 266
 267
 268     /**
 269      *  Binder to let client components to perform actions on the queue of operations.
 270      *
 271      *  It provides by itself the available operations.
 272      */
 273     public class OperationsServiceBinder extends Binder /* implements OnRemoteOperationListener */ {
 274
 275         /**
 276          * Map of listeners that will be reported about the end of operations from a {@link OperationsServiceBinder} instance
 277          */
 278         private ConcurrentMap<OnRemoteOperationListener, Handler> mBoundListeners =
 279                 new ConcurrentHashMap<OnRemoteOperationListener, Handler>();
 280
 281         private ServiceHandler mServiceHandler = null;
 282
 283
 284         public OperationsServiceBinder(ServiceHandler serviceHandler) {
 285             mServiceHandler = serviceHandler;
 286         }
 287
 288
 289         /**
 290          * Cancels an operation
 291          *
 292          * TODO
 293          */
 294         public void cancel() {
 295             // TODO
 296         }
 297
 298
 299         public void clearListeners() {
 300
 301             mBoundListeners.clear();
 302         }
 303
 304
 305         /**
 306          * Adds a listener interested in being reported about the end of operations.
 307          *
 308          * @param listener          Object to notify about the end of operations.
 309          * @param callbackHandler   {@link Handler} to access the listener without breaking Android threading protection.
 310          */
 311         public void addOperationListener (OnRemoteOperationListener listener, Handler callbackHandler) {
 312             synchronized (mBoundListeners) {
 313                 mBoundListeners.put(listener, callbackHandler);
 314             }
 315         }
 316
 317
 318         /**
 319          * Removes a listener from the list of objects interested in the being reported about the end of operations.
 320          *
 321          * @param listener      Object to notify about progress of transfer.
 322          */
 323         public void removeOperationListener (OnRemoteOperationListener listener) {
 324             synchronized (mBoundListeners) {
 325                 mBoundListeners.remove(listener);
 326             }
 327         }
 328
 329
 330         /**
 331          * TODO - IMPORTANT: update implementation when more operations are moved into the service
 332          *
 333          * @return  'True' when an operation that enforces the user to wait for completion is in process.
 334          */
 335         public boolean isPerformingBlockingOperation() {
 336             return (!mServiceHandler.mPendingOperations.isEmpty());
 337         }
 338
 339
 340         /**
 341          * Creates and adds to the queue a new operation, as described by operationIntent.
 342          *
 343          * Calls startService to make the operation is processed by the ServiceHandler.
 344          *
 345          * @param operationIntent       Intent describing a new operation to queue and execute.
 346          * @return                      Identifier of the operation created, or null if failed.
 347          */
 348         public long queueNewOperation(Intent operationIntent) {
 349             Pair<Target, RemoteOperation> itemToQueue = newOperation(operationIntent);
 350             if (itemToQueue != null) {
 351                 mServiceHandler.mPendingOperations.add(itemToQueue);
 352                 startService(new Intent(OperationsService.this, OperationsService.class));
 353                 return itemToQueue.second.hashCode();
 354
 355             } else {
 356                 return Long.MAX_VALUE;
 357             }
 358         }
 359
 360
 361         public boolean dispatchResultIfFinished(int operationId, OnRemoteOperationListener listener) {
 362             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 363                     mUndispatchedFinishedOperations.remove(operationId);
 364             if (undispatched != null) {
 365                 listener.onRemoteOperationFinish(undispatched.first, undispatched.second);
 366                 return true;
 367                 //Log_OC.wtf(TAG, "Sending callback later");
 368             } else {
 369                 if (!mServiceHandler.mPendingOperations.isEmpty()) {
 370                     return true;
 371                 } else {
 372                     return false;
 373                 }
 374                 //Log_OC.wtf(TAG, "Not finished yet");
 375             }
 376         }
 377
 378
 379         /**
 380          * Returns True when the file described by 'file' in the ownCloud account 'account' is downloading or waiting to download.
 381          *
 382          * If 'file' is a directory, returns 'true' if some of its descendant files is downloading or waiting to download.
 383          *
 384          * @param account       ownCloud account where the remote file is stored.
 385          * @param file          A file that could be affected
 386          */
 387         public boolean isSynchronizing(Account account, String remotePath) {
 388             return mSyncFolderHandler.isSynchronizing(account, remotePath);
 389         }
 390
 391     }
 392
 393
 394     /**
 395      * SyncFolder worker. Performs the pending operations in the order they were requested.
 396      *
 397      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 398      */
 399     private static class SyncFolderHandler extends Handler {
 400
 401         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 402
 403         OperationsService mService;
 404
 405         private ConcurrentMap<String,SynchronizeFolderOperation> mPendingOperations =
 406                 new ConcurrentHashMap<String,SynchronizeFolderOperation>();
 407         private OwnCloudClient mOwnCloudClient = null;
 408         private FileDataStorageManager mStorageManager;
 409         private SynchronizeFolderOperation mCurrentSyncOperation;
 410
 411
 412         public SyncFolderHandler(Looper looper, OperationsService service) {
 413             super(looper);
 414             if (service == null) {
 415                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 416             }
 417             mService = service;
 418         }
 419
 420
 421         public boolean isSynchronizing(Account account, String remotePath) {
 422             if (account == null || remotePath == null) return false;
 423             String targetKey = buildRemoteName(account, remotePath);
 424             synchronized (mPendingOperations) {
 425                 return (mPendingOperations.containsKey(targetKey));
 426             }
 427         }
 428
 429
 430         @Override
 431         public void handleMessage(Message msg) {
 432             Pair<Account, String> itemSyncKey = (Pair<Account, String>) msg.obj;
 433             doOperation(itemSyncKey.first, itemSyncKey.second);
 434             mService.stopSelf(msg.arg1);
 435         }
 436
 437
 438         /**
 439          * Performs the next operation in the queue
 440          */
 441         private void doOperation(Account account, String remotePath) {
 442
 443             String syncKey = buildRemoteName(account,remotePath);
 444
 445             synchronized(mPendingOperations) {
 446                 mCurrentSyncOperation = mPendingOperations.get(syncKey);
 447             }
 448
 449             if (mCurrentSyncOperation != null) {
 450
 451                 try {
 452
 453                     OwnCloudAccount ocAccount = new OwnCloudAccount(account, mService);
 454                     mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 455                             getClientFor(ocAccount, mService);
 456                     mStorageManager = new FileDataStorageManager(
 457                             account,
 458                             mService.getContentResolver()
 459                     );
 460
 461                     mCurrentSyncOperation.execute(mOwnCloudClient, mStorageManager);
 462
 463                 } catch (AccountsException e) {
 464                     Log_OC.e(TAG, "Error while trying to get autorization", e);
 465                 } catch (IOException e) {
 466                     Log_OC.e(TAG, "Error while trying to get autorization", e);
 467                 } finally {
 468                     synchronized(mPendingOperations) {
 469                         mPendingOperations.remove(syncKey);
 470                     }
 471                 }
 472             }
 473         }
 474
 475         public void add(Account account, String remotePath, SynchronizeFolderOperation syncFolderOperation){
 476             String syncKey = buildRemoteName(account,remotePath);
 477             mPendingOperations.putIfAbsent(syncKey,syncFolderOperation);
 478         }
 479
 480
 481         /**
 482          * Cancels a pending or current sync operation.
 483          *
 484          * @param account       Owncloud account where the remote file is stored.
 485          * @param remotePath    A remote file path
 486          */
 487         public void cancel(Account account, String remotePath) {
 488             SynchronizeFolderOperation syncOperation = null;
 489             synchronized (mPendingOperations) {
 490                 syncOperation = mPendingOperations.remove(buildRemoteName(account, remotePath));
 491             }
 492             if (syncOperation != null) {
 493                 syncOperation.cancel();
 494             }
 495         }
 496
 497         /**
 498          * Builds a key from the account and file to download
 499          *
 500          * @param account   Account where the file to download is stored
 501          * @param path      File path
 502          */
 503         private String buildRemoteName(Account account, String path) {
 504             return account.name + path;
 505         }
 506     }
 507
 508
 509     /**
 510      * Operations worker. Performs the pending operations in the order they were requested.
 511      *
 512      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 513      */
 514     private static class ServiceHandler extends Handler {
 515         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 516
 517
 518         OperationsService mService;
 519
 520
 521         private ConcurrentLinkedQueue<Pair<Target, RemoteOperation>> mPendingOperations =
 522                 new ConcurrentLinkedQueue<Pair<Target, RemoteOperation>>();
 523         private RemoteOperation mCurrentOperation = null;
 524         private Target mLastTarget = null;
 525         private OwnCloudClient mOwnCloudClient = null;
 526         private FileDataStorageManager mStorageManager;
 527
 528
 529         public ServiceHandler(Looper looper, OperationsService service) {
 530             super(looper);
 531             if (service == null) {
 532                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 533             }
 534             mService = service;
 535         }
 536
 537         @Override
 538         public void handleMessage(Message msg) {
 539             nextOperation();
 540             mService.stopSelf(msg.arg1);
 541         }
 542
 543
 544         /**
 545          * Performs the next operation in the queue
 546          */
 547         private void nextOperation() {
 548
 549             //Log_OC.wtf(TAG, "nextOperation init" );
 550
 551             Pair<Target, RemoteOperation> next = null;
 552             synchronized(mPendingOperations) {
 553                 next = mPendingOperations.peek();
 554             }
 555
 556             if (next != null) {
 557
 558                 mCurrentOperation = next.second;
 559                 RemoteOperationResult result = null;
 560                 try {
 561                     /// prepare client object to send the request to the ownCloud server
 562                     if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 563                         mLastTarget = next.first;
 564                         if (mLastTarget.mAccount != null) {
 565                             OwnCloudAccount ocAccount = new OwnCloudAccount(mLastTarget.mAccount, mService);
 566                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 567                                     getClientFor(ocAccount, mService);
 568                             mStorageManager = new FileDataStorageManager(
 569                                     mLastTarget.mAccount,
 570                                     mService.getContentResolver()
 571                             );
 572                         } else {
 573                             OwnCloudCredentials credentials = null;
 574                             if (mLastTarget.mUsername != null &&
 575                                     mLastTarget.mUsername.length() > 0) {
 576                                 credentials = OwnCloudCredentialsFactory.newBasicCredentials(
 577                                         mLastTarget.mUsername,
 578                                         mLastTarget.mPassword);  // basic
 579
 580                             } else if (mLastTarget.mAuthToken != null &&
 581                                     mLastTarget.mAuthToken.length() > 0) {
 582                                 credentials = OwnCloudCredentialsFactory.newBearerCredentials(
 583                                         mLastTarget.mAuthToken);  // bearer token
 584
 585                             } else if (mLastTarget.mCookie != null &&
 586                                     mLastTarget.mCookie.length() > 0) {
 587                                 credentials = OwnCloudCredentialsFactory.newSamlSsoCredentials(
 588                                         mLastTarget.mCookie); // SAML SSO
 589                             }
 590                             OwnCloudAccount ocAccount = new OwnCloudAccount(
 591                                     mLastTarget.mServerUrl, credentials);
 592                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 593                                     getClientFor(ocAccount, mService);
 594                             mStorageManager = null;
 595                         }
 596                     }
 597
 598                     /// perform the operation
 599                     if (mCurrentOperation instanceof SyncOperation) {
 600                         result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient, mStorageManager);
 601                     } else {
 602                         result = mCurrentOperation.execute(mOwnCloudClient);
 603                     }
 604
 605                 } catch (AccountsException e) {
 606                     if (mLastTarget.mAccount == null) {
 607                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 608                     } else {
 609                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 610                     }
 611                     result = new RemoteOperationResult(e);
 612
 613                 } catch (IOException e) {
 614                     if (mLastTarget.mAccount == null) {
 615                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 616                     } else {
 617                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 618                     }
 619                     result = new RemoteOperationResult(e);
 620                 } catch (Exception e) {
 621                     if (mLastTarget.mAccount == null) {
 622                         Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 623                     } else {
 624                         Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 625                     }
 626                     result = new RemoteOperationResult(e);
 627
 628                 } finally {
 629                     synchronized(mPendingOperations) {
 630                         mPendingOperations.poll();
 631                     }
 632                 }
 633
 634                 //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 635                 mService.dispatchResultToOperationListeners(mLastTarget, mCurrentOperation, result);
 636             }
 637         }
 638
 639
 640
 641     }
 642
 643
 644     /**
 645      * Creates a new operation, as described by operationIntent.
 646      *
 647      * TODO - move to ServiceHandler (probably)
 648      *
 649      * @param operationIntent       Intent describing a new operation to queue and execute.
 650      * @return                      Pair with the new operation object and the information about its target server.
 651      */
 652     private Pair<Target , RemoteOperation> newOperation(Intent operationIntent) {
 653         RemoteOperation operation = null;
 654         Target target = null;
 655         try {
 656             if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 657                     !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 658                 Log_OC.e(TAG, "Not enough information provided in intent");
 659
 660             } else {
 661                 Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 662                 String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 663                 String username = operationIntent.getStringExtra(EXTRA_USERNAME);
 664                 String password = operationIntent.getStringExtra(EXTRA_PASSWORD);
 665                 String authToken = operationIntent.getStringExtra(EXTRA_AUTH_TOKEN);
 666                 String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 667                 target = new Target(
 668                         account,
 669                         (serverUrl == null) ? null : Uri.parse(serverUrl),
 670                         username,
 671                         password,
 672                         authToken,
 673                         cookie
 674                 );
 675
 676                 String action = operationIntent.getAction();
 677                 if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 678                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 679                     Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 680                     if (remotePath.length() > 0) {
 681                         operation = new CreateShareOperation(remotePath, ShareType.PUBLIC_LINK,
 682                                 "", false, "", 1, sendIntent);
 683                     }
 684
 685                 } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 686                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 687                     if (remotePath.length() > 0) {
 688                         operation = new UnshareLinkOperation(
 689                                 remotePath,
 690                                 OperationsService.this);
 691                     }
 692
 693                 } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 694                     // check OC server and get basic information from it
 695                     operation = new GetServerInfoOperation(serverUrl, OperationsService.this);
 696
 697                 } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 698                     /// GET ACCESS TOKEN to the OAuth server
 699                     String oauth2QueryParameters =
 700                             operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 701                     operation = new OAuth2GetAccessToken(
 702                             getString(R.string.oauth2_client_id),
 703                             getString(R.string.oauth2_redirect_uri),
 704                             getString(R.string.oauth2_grant_type),
 705                             oauth2QueryParameters);
 706
 707                 } else if (action.equals(ACTION_EXISTENCE_CHECK)) {
 708                     // Existence Check
 709                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 710                     boolean successIfAbsent = operationIntent.getBooleanExtra(EXTRA_SUCCESS_IF_ABSENT, false);
 711                     operation = new ExistenceCheckRemoteOperation(remotePath, OperationsService.this, successIfAbsent);
 712
 713                 } else if (action.equals(ACTION_GET_USER_NAME)) {
 714                     // Get User Name
 715                     operation = new GetRemoteUserNameOperation();
 716
 717                 } else if (action.equals(ACTION_RENAME)) {
 718                     // Rename file or folder
 719                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 720                     String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 721                     operation = new RenameFileOperation(remotePath, newName);
 722
 723                 } else if (action.equals(ACTION_REMOVE)) {
 724                     // Remove file or folder
 725                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 726                     boolean onlyLocalCopy = operationIntent.getBooleanExtra(EXTRA_REMOVE_ONLY_LOCAL, false);
 727                     operation = new RemoveFileOperation(remotePath, onlyLocalCopy);
 728
 729                 } else if (action.equals(ACTION_CREATE_FOLDER)) {
 730                     // Create Folder
 731                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 732                     boolean createFullPath = operationIntent.getBooleanExtra(EXTRA_CREATE_FULL_PATH, true);
 733                     operation = new CreateFolderOperation(remotePath, createFullPath);
 734
 735                 } else if (action.equals(ACTION_SYNC_FILE)) {
 736                     // Sync file
 737                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 738                     boolean syncFileContents = operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 739                     operation = new SynchronizeFileOperation(
 740                             remotePath, account, syncFileContents, getApplicationContext()
 741                     );
 742
 743                 } else if (action.equals(ACTION_SYNC_FOLDER)) {
 744                     // Sync file
 745                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 746                     operation = new SynchronizeFolderOperation(
 747                             this,                       // TODO remove this dependency from construction time
 748                             remotePath,
 749                             account,
 750                             System.currentTimeMillis()  // TODO remove this dependency from construction time
 751                     );
 752
 753                 } else if (action.equals(ACTION_MOVE_FILE)) {
 754                     // Move file/folder
 755                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 756                     String newParentPath = operationIntent.getStringExtra(EXTRA_NEW_PARENT_PATH);
 757                     operation = new MoveFileOperation(remotePath,newParentPath,account);
 758                 }
 759
 760             }
 761
 762         } catch (IllegalArgumentException e) {
 763             Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 764             operation = null;
 765         }
 766
 767         if (operation != null) {
 768             return new Pair<Target , RemoteOperation>(target, operation);
 769         } else {
 770             return null;
 771         }
 772     }
 773
 774
 775     /**
 776      * Sends a broadcast when a new operation is added to the queue.
 777      *
 778      * Local broadcasts are only delivered to activities in the same process, but can't be done sticky :\
 779      *
 780      * @param target            Account or URL pointing to an OC server.
 781      * @param operation         Added operation.
 782      */
 783     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 784         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 785         if (target.mAccount != null) {
 786             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 787         } else {
 788             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 789         }
 790         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 791         //lbm.sendBroadcast(intent);
 792         sendStickyBroadcast(intent);
 793     }
 794
 795
 796     // TODO - maybe add a notification for real start of operations
 797
 798     /**
 799      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities can update their view
 800      *
 801      * Local broadcasts are only delivered to activities in the same process.
 802      *
 803      * @param target            Account or URL pointing to an OC server.
 804      * @param operation         Finished operation.
 805      * @param result            Result of the operation.
 806      */
 807     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation, RemoteOperationResult result) {
 808         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 809         intent.putExtra(EXTRA_RESULT, result);
 810         if (target.mAccount != null) {
 811             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 812         } else {
 813             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 814         }
 815         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 816         //lbm.sendBroadcast(intent);
 817         sendStickyBroadcast(intent);
 818     }
 819
 820
 821     /**
 822      * Notifies the currently subscribed listeners about the end of an operation.
 823      *
 824      * @param target            Account or URL pointing to an OC server.
 825      * @param operation         Finished operation.
 826      * @param result            Result of the operation.
 827      */
 828     private void dispatchResultToOperationListeners(
 829             Target target, final RemoteOperation operation, final RemoteOperationResult result) {
 830         int count = 0;
 831         Iterator<OnRemoteOperationListener> listeners = mOperationsBinder.mBoundListeners.keySet().iterator();
 832         while (listeners.hasNext()) {
 833             final OnRemoteOperationListener listener = listeners.next();
 834             final Handler handler = mOperationsBinder.mBoundListeners.get(listener);
 835             if (handler != null) {
 836                 handler.post(new Runnable() {
 837                     @Override
 838                     public void run() {
 839                         listener.onRemoteOperationFinish(operation, result);
 840                     }
 841                 });
 842                 count += 1;
 843             }
 844         }
 845         if (count == 0) {
 846             //mOperationResults.put(operation.hashCode(), result);
 847             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 848                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 849             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 850         }
 851         Log_OC.d(TAG, "Called " + count + " listeners");
 852     }
 853 }