src/com/owncloud/android/services/OperationsService.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012-2014 ownCloud Inc.
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License version 2,
   6  *   as published by the Free Software Foundation.
   7  *
   8  *   This program is distributed in the hope that it will be useful,
   9  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  *   GNU General Public License for more details.
  12  *
  13  *   You should have received a copy of the GNU General Public License
  14  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15  *
  16  */
  17
  18 package com.owncloud.android.services;
  19
  20 import java.io.IOException;
  21 import java.util.Iterator;
  22 import java.util.concurrent.ConcurrentHashMap;
  23 import java.util.concurrent.ConcurrentLinkedQueue;
  24 import java.util.concurrent.ConcurrentMap;
  25
  26 import com.owncloud.android.MainApp;
  27 import com.owncloud.android.R;
  28 import com.owncloud.android.datamodel.FileDataStorageManager;
  29 import com.owncloud.android.datamodel.OCFile;
  30 import com.owncloud.android.lib.common.OwnCloudAccount;
  31 import com.owncloud.android.lib.common.OwnCloudClient;
  32 import com.owncloud.android.lib.common.OwnCloudClientManagerFactory;
  33 import com.owncloud.android.lib.common.OwnCloudCredentials;
  34 import com.owncloud.android.lib.common.OwnCloudCredentialsFactory;
  35 import com.owncloud.android.lib.common.accounts.AccountUtils.AccountNotFoundException;
  36 import com.owncloud.android.lib.common.operations.OnRemoteOperationListener;
  37 import com.owncloud.android.lib.common.operations.RemoteOperation;
  38 import com.owncloud.android.lib.common.operations.RemoteOperationResult;
  39 import com.owncloud.android.lib.common.utils.Log_OC;
  40 import com.owncloud.android.lib.resources.files.ExistenceCheckRemoteOperation;
  41 import com.owncloud.android.lib.resources.shares.ShareType;
  42 import com.owncloud.android.lib.resources.users.GetRemoteUserNameOperation;
  43 import com.owncloud.android.operations.common.SyncOperation;
  44 import com.owncloud.android.operations.CreateFolderOperation;
  45 import com.owncloud.android.operations.CreateShareOperation;
  46 import com.owncloud.android.operations.GetServerInfoOperation;
  47 import com.owncloud.android.operations.MoveFileOperation;
  48 import com.owncloud.android.operations.OAuth2GetAccessToken;
  49 import com.owncloud.android.operations.RemoveFileOperation;
  50 import com.owncloud.android.operations.RenameFileOperation;
  51 import com.owncloud.android.operations.SynchronizeFileOperation;
  52 import com.owncloud.android.operations.SynchronizeFolderOperation;
  53 import com.owncloud.android.operations.UnshareLinkOperation;
  54
  55 import android.accounts.Account;
  56 import android.accounts.AccountsException;
  57 import android.accounts.AuthenticatorException;
  58 import android.accounts.OperationCanceledException;
  59 import android.app.Service;
  60 import android.content.Intent;
  61 import android.net.Uri;
  62 import android.os.Binder;
  63 import android.os.Handler;
  64 import android.os.HandlerThread;
  65 import android.os.IBinder;
  66 import android.os.Looper;
  67 import android.os.Message;
  68 import android.os.Process;
  69 import android.util.Pair;
  70
  71 public class OperationsService extends Service {
  72
  73     private static final String TAG = OperationsService.class.getSimpleName();
  74
  75     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  76     public static final String EXTRA_SERVER_URL = "SERVER_URL";
  77     public static final String EXTRA_OAUTH2_QUERY_PARAMETERS = "OAUTH2_QUERY_PARAMETERS";
  78     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  79     public static final String EXTRA_SEND_INTENT = "SEND_INTENT";
  80     public static final String EXTRA_NEWNAME = "NEWNAME";
  81     public static final String EXTRA_REMOVE_ONLY_LOCAL = "REMOVE_LOCAL_COPY";
  82     public static final String EXTRA_CREATE_FULL_PATH = "CREATE_FULL_PATH";
  83     public static final String EXTRA_SYNC_FILE_CONTENTS = "SYNC_FILE_CONTENTS";
  84     public static final String EXTRA_RESULT = "RESULT";
  85     public static final String EXTRA_NEW_PARENT_PATH = "NEW_PARENT_PATH";
  86
  87     // TODO review if ALL OF THEM are necessary
  88     public static final String EXTRA_SUCCESS_IF_ABSENT = "SUCCESS_IF_ABSENT";
  89     public static final String EXTRA_USERNAME = "USERNAME";
  90     public static final String EXTRA_PASSWORD = "PASSWORD";
  91     public static final String EXTRA_AUTH_TOKEN = "AUTH_TOKEN";
  92     public static final String EXTRA_COOKIE = "COOKIE";
  93
  94     public static final String ACTION_CREATE_SHARE = "CREATE_SHARE";
  95     public static final String ACTION_UNSHARE = "UNSHARE";
  96     public static final String ACTION_GET_SERVER_INFO = "GET_SERVER_INFO";
  97     public static final String ACTION_OAUTH2_GET_ACCESS_TOKEN = "OAUTH2_GET_ACCESS_TOKEN";
  98     public static final String ACTION_EXISTENCE_CHECK = "EXISTENCE_CHECK";
  99     public static final String ACTION_GET_USER_NAME = "GET_USER_NAME";
 100     public static final String ACTION_RENAME = "RENAME";
 101     public static final String ACTION_REMOVE = "REMOVE";
 102     public static final String ACTION_CREATE_FOLDER = "CREATE_FOLDER";
 103     public static final String ACTION_SYNC_FILE = "SYNC_FILE";
 104     public static final String ACTION_SYNC_FOLDER = "SYNC_FOLDER";  // for the moment, just to download
 105     public static final String ACTION_CANCEL_SYNC_FOLDER = "CANCEL_SYNC_FOLDER";  // for the moment, just to download
 106     public static final String ACTION_MOVE_FILE = "MOVE_FILE";
 107
 108     public static final String ACTION_OPERATION_ADDED = OperationsService.class.getName() + ".OPERATION_ADDED";
 109     public static final String ACTION_OPERATION_FINISHED = OperationsService.class.getName() + ".OPERATION_FINISHED";
 110
 111
 112     private ConcurrentMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>
 113         mUndispatchedFinishedOperations =
 114             new ConcurrentHashMap<Integer, Pair<RemoteOperation, RemoteOperationResult>>();
 115
 116     private static class Target {
 117         public Uri mServerUrl = null;
 118         public Account mAccount = null;
 119         public String mUsername = null;
 120         public String mPassword = null;
 121         public String mAuthToken = null;
 122         public String mCookie = null;
 123
 124         public Target(Account account, Uri serverUrl, String username, String password, String authToken,
 125                 String cookie) {
 126             mAccount = account;
 127             mServerUrl = serverUrl;
 128             mUsername = username;
 129             mPassword = password;
 130             mAuthToken = authToken;
 131             mCookie = cookie;
 132         }
 133     }
 134
 135     private ServiceHandler mOperationsHandler;
 136     private OperationsServiceBinder mOperationsBinder;
 137
 138     private SyncFolderHandler mSyncFolderHandler;
 139
 140     /**
 141      * Service initialization
 142      */
 143     @Override
 144     public void onCreate() {
 145         super.onCreate();
 146         /// First worker thread for most of operations
 147         HandlerThread thread = new HandlerThread("Operations thread", Process.THREAD_PRIORITY_BACKGROUND);
 148         thread.start();
 149         mOperationsHandler = new ServiceHandler(thread.getLooper(), this);
 150         mOperationsBinder = new OperationsServiceBinder(mOperationsHandler);
 151
 152         /// Separated worker thread for download of folders (WIP)
 153         thread = new HandlerThread("Syncfolder thread", Process.THREAD_PRIORITY_BACKGROUND);
 154         thread.start();
 155         mSyncFolderHandler = new SyncFolderHandler(thread.getLooper(), this);
 156     }
 157
 158
 159     /**
 160      * Entry point to add a new operation to the queue of operations.
 161      *
 162      * New operations are added calling to startService(), resulting in a call to this method.
 163      * This ensures the service will keep on working although the caller activity goes away.
 164      */
 165     @Override
 166     public int onStartCommand(Intent intent, int flags, int startId) {
 167         // WIP: for the moment, only SYNC_FOLDER and CANCEL_SYNC_FOLDER is expected here;
 168         // the rest of the operations are requested through the Binder
 169         if (ACTION_SYNC_FOLDER.equals(intent.getAction())) {
 170             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 171                 Log_OC.e(TAG, "Not enough information provided in intent");
 172                 return START_NOT_STICKY;
 173             }
 174             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 175             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 176
 177             Pair<Account, String> itemSyncKey =  new Pair<Account , String>(account, remotePath);
 178
 179             Pair<Target, RemoteOperation> itemToQueue = newOperation(intent);
 180             if (itemToQueue != null) {
 181                 mSyncFolderHandler.add(account, remotePath, (SynchronizeFolderOperation)itemToQueue.second);
 182                 Message msg = mSyncFolderHandler.obtainMessage();
 183                 msg.arg1 = startId;
 184                 msg.obj = itemSyncKey;
 185                 mSyncFolderHandler.sendMessage(msg);
 186             }
 187         } else if (ACTION_CANCEL_SYNC_FOLDER.equals(intent.getAction())) {
 188             if (!intent.hasExtra(EXTRA_ACCOUNT) || !intent.hasExtra(EXTRA_REMOTE_PATH)) {
 189                 Log_OC.e(TAG, "Not enough information provided in intent");
 190                 return START_NOT_STICKY;
 191             }
 192             Account account = intent.getParcelableExtra(EXTRA_ACCOUNT);
 193             String remotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
 194
 195             // Cancel operation
 196             mSyncFolderHandler.cancel(account,remotePath);
 197         } else {
 198             Message msg = mOperationsHandler.obtainMessage();
 199             msg.arg1 = startId;
 200             mOperationsHandler.sendMessage(msg);
 201         }
 202
 203         return START_NOT_STICKY;
 204     }
 205
 206     @Override
 207     public void onDestroy() {
 208         //Log_OC.wtf(TAG, "onDestroy init" );
 209         // Saving cookies
 210         try {
 211             OwnCloudClientManagerFactory.getDefaultSingleton().
 212                 saveAllClients(this, MainApp.getAccountType());
 213
 214             // TODO - get rid of these exceptions
 215         } catch (AccountNotFoundException e) {
 216             e.printStackTrace();
 217         } catch (AuthenticatorException e) {
 218             e.printStackTrace();
 219         } catch (OperationCanceledException e) {
 220             e.printStackTrace();
 221         } catch (IOException e) {
 222             e.printStackTrace();
 223         }
 224
 225         //Log_OC.wtf(TAG, "Clear mUndispatchedFinisiedOperations" );
 226         mUndispatchedFinishedOperations.clear();
 227
 228         //Log_OC.wtf(TAG, "onDestroy end" );
 229         super.onDestroy();
 230     }
 231
 232     /**
 233      * Provides a binder object that clients can use to perform actions on the queue of operations,
 234      * except the addition of new operations.
 235      */
 236     @Override
 237     public IBinder onBind(Intent intent) {
 238         //Log_OC.wtf(TAG, "onBind" );
 239         return mOperationsBinder;
 240     }
 241
 242
 243     /**
 244      * Called when ALL the bound clients were unbound.
 245      */
 246     @Override
 247     public boolean onUnbind(Intent intent) {
 248         ((OperationsServiceBinder)mOperationsBinder).clearListeners();
 249         return false;   // not accepting rebinding (default behaviour)
 250     }
 251
 252
 253     /**
 254      *  Binder to let client components to perform actions on the queue of operations.
 255      *
 256      *  It provides by itself the available operations.
 257      */
 258     public class OperationsServiceBinder extends Binder /* implements OnRemoteOperationListener */ {
 259
 260         /**
 261          * Map of listeners that will be reported about the end of operations from a {@link OperationsServiceBinder} instance
 262          */
 263         private ConcurrentMap<OnRemoteOperationListener, Handler> mBoundListeners =
 264                 new ConcurrentHashMap<OnRemoteOperationListener, Handler>();
 265
 266         private ServiceHandler mServiceHandler = null;
 267
 268
 269         public OperationsServiceBinder(ServiceHandler serviceHandler) {
 270             mServiceHandler = serviceHandler;
 271         }
 272
 273
 274         /**
 275          * Cancels an operation
 276          *
 277          * TODO
 278          */
 279         public void cancel() {
 280             // TODO
 281         }
 282
 283
 284         public void clearListeners() {
 285
 286             mBoundListeners.clear();
 287         }
 288
 289
 290         /**
 291          * Adds a listener interested in being reported about the end of operations.
 292          *
 293          * @param listener          Object to notify about the end of operations.
 294          * @param callbackHandler   {@link Handler} to access the listener without breaking Android threading protection.
 295          */
 296         public void addOperationListener (OnRemoteOperationListener listener, Handler callbackHandler) {
 297             synchronized (mBoundListeners) {
 298                 mBoundListeners.put(listener, callbackHandler);
 299             }
 300         }
 301
 302
 303         /**
 304          * Removes a listener from the list of objects interested in the being reported about the end of operations.
 305          *
 306          * @param listener      Object to notify about progress of transfer.
 307          */
 308         public void removeOperationListener (OnRemoteOperationListener listener) {
 309             synchronized (mBoundListeners) {
 310                 mBoundListeners.remove(listener);
 311             }
 312         }
 313
 314
 315         /**
 316          * TODO - IMPORTANT: update implementation when more operations are moved into the service
 317          *
 318          * @return  'True' when an operation that enforces the user to wait for completion is in process.
 319          */
 320         public boolean isPerformingBlockingOperation() {
 321             return (!mServiceHandler.mPendingOperations.isEmpty());
 322         }
 323
 324
 325         /**
 326          * Creates and adds to the queue a new operation, as described by operationIntent.
 327          *
 328          * Calls startService to make the operation is processed by the ServiceHandler.
 329          *
 330          * @param operationIntent       Intent describing a new operation to queue and execute.
 331          * @return                      Identifier of the operation created, or null if failed.
 332          */
 333         public long queueNewOperation(Intent operationIntent) {
 334             Pair<Target, RemoteOperation> itemToQueue = newOperation(operationIntent);
 335             if (itemToQueue != null) {
 336                 mServiceHandler.mPendingOperations.add(itemToQueue);
 337                 startService(new Intent(OperationsService.this, OperationsService.class));
 338                 return itemToQueue.second.hashCode();
 339
 340             } else {
 341                 return Long.MAX_VALUE;
 342             }
 343         }
 344
 345
 346         public boolean dispatchResultIfFinished(int operationId, OnRemoteOperationListener listener) {
 347             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 348                     mUndispatchedFinishedOperations.remove(operationId);
 349             if (undispatched != null) {
 350                 listener.onRemoteOperationFinish(undispatched.first, undispatched.second);
 351                 return true;
 352                 //Log_OC.wtf(TAG, "Sending callback later");
 353             } else {
 354                 if (!mServiceHandler.mPendingOperations.isEmpty()) {
 355                     return true;
 356                 } else {
 357                     return false;
 358                 }
 359                 //Log_OC.wtf(TAG, "Not finished yet");
 360             }
 361         }
 362
 363     }
 364
 365
 366     /**
 367      * SyncFolder worker. Performs the pending operations in the order they were requested.
 368      *
 369      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 370      */
 371     private static class SyncFolderHandler extends Handler {
 372
 373         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 374
 375         OperationsService mService;
 376
 377         private ConcurrentMap<String,SynchronizeFolderOperation> mPendingOperations =
 378                 new ConcurrentHashMap<String,SynchronizeFolderOperation>();
 379         private OwnCloudClient mOwnCloudClient = null;
 380         private FileDataStorageManager mStorageManager;
 381         private SynchronizeFolderOperation mCurrentSyncOperation;
 382
 383
 384         public SyncFolderHandler(Looper looper, OperationsService service) {
 385             super(looper);
 386             if (service == null) {
 387                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 388             }
 389             mService = service;
 390         }
 391
 392         @Override
 393         public void handleMessage(Message msg) {
 394             Pair<Account, String> itemSyncKey = (Pair<Account, String>) msg.obj;
 395             doOperation(itemSyncKey.first, itemSyncKey.second);
 396             mService.stopSelf(msg.arg1);
 397         }
 398
 399
 400         /**
 401          * Performs the next operation in the queue
 402          */
 403         private void doOperation(Account account, String remotePath) {
 404
 405             String syncKey = buildRemoteName(account,remotePath);
 406
 407             synchronized(mPendingOperations) {
 408                 mCurrentSyncOperation = mPendingOperations.get(syncKey);
 409             }
 410
 411             if (mCurrentSyncOperation != null) {
 412
 413                 try {
 414
 415                     OwnCloudAccount ocAccount = new OwnCloudAccount(account, mService);
 416                     mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 417                             getClientFor(ocAccount, mService);
 418                     mStorageManager = new FileDataStorageManager(
 419                             account,
 420                             mService.getContentResolver()
 421                     );
 422
 423                     mCurrentSyncOperation.execute(mOwnCloudClient, mStorageManager);
 424
 425                 } catch (AccountsException e) {
 426                     Log_OC.e(TAG, "Error while trying to get autorization", e);
 427                 } catch (IOException e) {
 428                     Log_OC.e(TAG, "Error while trying to get autorization", e);
 429                 } finally {
 430                     synchronized(mPendingOperations) {
 431                         mPendingOperations.remove(syncKey);
 432                     }
 433                 }
 434             }
 435         }
 436
 437         public void add(Account account, String remotePath, SynchronizeFolderOperation syncFolderOperation){
 438             String syncKey = buildRemoteName(account,remotePath);
 439             mPendingOperations.putIfAbsent(syncKey,syncFolderOperation);
 440         }
 441
 442
 443         /**
 444          * Cancels a pending or current sync operation.
 445          *
 446          * @param account       Owncloud account where the remote file is stored.
 447          * @param remotePath    A remote file path
 448          */
 449         public void cancel(Account account, String remotePath) {
 450             SynchronizeFolderOperation syncOperation = null;
 451             synchronized (mPendingOperations) {
 452                 syncOperation = mPendingOperations.remove(buildRemoteName(account, remotePath));
 453             }
 454             if (syncOperation != null) {
 455                 syncOperation.cancel();
 456             }
 457         }
 458
 459         /**
 460          * Builds a key from the account and file to download
 461          *
 462          * @param account   Account where the file to download is stored
 463          * @param path      File path
 464          */
 465         private String buildRemoteName(Account account, String path) {
 466             return account.name + path;
 467         }
 468     }
 469
 470
 471     /**
 472      * Operations worker. Performs the pending operations in the order they were requested.
 473      *
 474      * Created with the Looper of a new thread, started in {@link OperationsService#onCreate()}.
 475      */
 476     private static class ServiceHandler extends Handler {
 477         // don't make it a final class, and don't remove the static ; lint will warn about a possible memory leak
 478
 479
 480         OperationsService mService;
 481
 482
 483         private ConcurrentLinkedQueue<Pair<Target, RemoteOperation>> mPendingOperations =
 484                 new ConcurrentLinkedQueue<Pair<Target, RemoteOperation>>();
 485         private RemoteOperation mCurrentOperation = null;
 486         private Target mLastTarget = null;
 487         private OwnCloudClient mOwnCloudClient = null;
 488         private FileDataStorageManager mStorageManager;
 489
 490
 491         public ServiceHandler(Looper looper, OperationsService service) {
 492             super(looper);
 493             if (service == null) {
 494                 throw new IllegalArgumentException("Received invalid NULL in parameter 'service'");
 495             }
 496             mService = service;
 497         }
 498
 499         @Override
 500         public void handleMessage(Message msg) {
 501             nextOperation();
 502             mService.stopSelf(msg.arg1);
 503         }
 504
 505
 506         /**
 507          * Performs the next operation in the queue
 508          */
 509         private void nextOperation() {
 510
 511             //Log_OC.wtf(TAG, "nextOperation init" );
 512
 513             Pair<Target, RemoteOperation> next = null;
 514             synchronized(mPendingOperations) {
 515                 next = mPendingOperations.peek();
 516             }
 517
 518             if (next != null) {
 519
 520                 mCurrentOperation = next.second;
 521                 RemoteOperationResult result = null;
 522                 try {
 523                     /// prepare client object to send the request to the ownCloud server
 524                     if (mLastTarget == null || !mLastTarget.equals(next.first)) {
 525                         mLastTarget = next.first;
 526                         if (mLastTarget.mAccount != null) {
 527                             OwnCloudAccount ocAccount = new OwnCloudAccount(mLastTarget.mAccount, mService);
 528                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 529                                     getClientFor(ocAccount, mService);
 530                             mStorageManager = new FileDataStorageManager(
 531                                     mLastTarget.mAccount,
 532                                     mService.getContentResolver()
 533                             );
 534                         } else {
 535                             OwnCloudCredentials credentials = null;
 536                             if (mLastTarget.mUsername != null &&
 537                                     mLastTarget.mUsername.length() > 0) {
 538                                 credentials = OwnCloudCredentialsFactory.newBasicCredentials(
 539                                         mLastTarget.mUsername,
 540                                         mLastTarget.mPassword);  // basic
 541
 542                             } else if (mLastTarget.mAuthToken != null &&
 543                                     mLastTarget.mAuthToken.length() > 0) {
 544                                 credentials = OwnCloudCredentialsFactory.newBearerCredentials(
 545                                         mLastTarget.mAuthToken);  // bearer token
 546
 547                             } else if (mLastTarget.mCookie != null &&
 548                                     mLastTarget.mCookie.length() > 0) {
 549                                 credentials = OwnCloudCredentialsFactory.newSamlSsoCredentials(
 550                                         mLastTarget.mCookie); // SAML SSO
 551                             }
 552                             OwnCloudAccount ocAccount = new OwnCloudAccount(
 553                                     mLastTarget.mServerUrl, credentials);
 554                             mOwnCloudClient = OwnCloudClientManagerFactory.getDefaultSingleton().
 555                                     getClientFor(ocAccount, mService);
 556                             mStorageManager = null;
 557                         }
 558                     }
 559
 560                     /// perform the operation
 561                     if (mCurrentOperation instanceof SyncOperation) {
 562                         result = ((SyncOperation)mCurrentOperation).execute(mOwnCloudClient, mStorageManager);
 563                     } else {
 564                         result = mCurrentOperation.execute(mOwnCloudClient);
 565                     }
 566
 567                 } catch (AccountsException e) {
 568                     if (mLastTarget.mAccount == null) {
 569                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 570                     } else {
 571                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 572                     }
 573                     result = new RemoteOperationResult(e);
 574
 575                 } catch (IOException e) {
 576                     if (mLastTarget.mAccount == null) {
 577                         Log_OC.e(TAG, "Error while trying to get authorization for a NULL account", e);
 578                     } else {
 579                         Log_OC.e(TAG, "Error while trying to get authorization for " + mLastTarget.mAccount.name, e);
 580                     }
 581                     result = new RemoteOperationResult(e);
 582                 } catch (Exception e) {
 583                     if (mLastTarget.mAccount == null) {
 584                         Log_OC.e(TAG, "Unexpected error for a NULL account", e);
 585                     } else {
 586                         Log_OC.e(TAG, "Unexpected error for " + mLastTarget.mAccount.name, e);
 587                     }
 588                     result = new RemoteOperationResult(e);
 589
 590                 } finally {
 591                     synchronized(mPendingOperations) {
 592                         mPendingOperations.poll();
 593                     }
 594                 }
 595
 596                 //sendBroadcastOperationFinished(mLastTarget, mCurrentOperation, result);
 597                 mService.dispatchResultToOperationListeners(mLastTarget, mCurrentOperation, result);
 598             }
 599         }
 600
 601
 602
 603     }
 604
 605
 606     /**
 607      * Creates a new operation, as described by operationIntent.
 608      *
 609      * TODO - move to ServiceHandler (probably)
 610      *
 611      * @param operationIntent       Intent describing a new operation to queue and execute.
 612      * @return                      Pair with the new operation object and the information about its target server.
 613      */
 614     private Pair<Target , RemoteOperation> newOperation(Intent operationIntent) {
 615         RemoteOperation operation = null;
 616         Target target = null;
 617         try {
 618             if (!operationIntent.hasExtra(EXTRA_ACCOUNT) &&
 619                     !operationIntent.hasExtra(EXTRA_SERVER_URL)) {
 620                 Log_OC.e(TAG, "Not enough information provided in intent");
 621
 622             } else {
 623                 Account account = operationIntent.getParcelableExtra(EXTRA_ACCOUNT);
 624                 String serverUrl = operationIntent.getStringExtra(EXTRA_SERVER_URL);
 625                 String username = operationIntent.getStringExtra(EXTRA_USERNAME);
 626                 String password = operationIntent.getStringExtra(EXTRA_PASSWORD);
 627                 String authToken = operationIntent.getStringExtra(EXTRA_AUTH_TOKEN);
 628                 String cookie = operationIntent.getStringExtra(EXTRA_COOKIE);
 629                 target = new Target(
 630                         account,
 631                         (serverUrl == null) ? null : Uri.parse(serverUrl),
 632                         username,
 633                         password,
 634                         authToken,
 635                         cookie
 636                 );
 637
 638                 String action = operationIntent.getAction();
 639                 if (action.equals(ACTION_CREATE_SHARE)) {  // Create Share
 640                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 641                     Intent sendIntent = operationIntent.getParcelableExtra(EXTRA_SEND_INTENT);
 642                     if (remotePath.length() > 0) {
 643                         operation = new CreateShareOperation(remotePath, ShareType.PUBLIC_LINK,
 644                                 "", false, "", 1, sendIntent);
 645                     }
 646
 647                 } else if (action.equals(ACTION_UNSHARE)) {  // Unshare file
 648                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 649                     if (remotePath.length() > 0) {
 650                         operation = new UnshareLinkOperation(
 651                                 remotePath,
 652                                 OperationsService.this);
 653                     }
 654
 655                 } else if (action.equals(ACTION_GET_SERVER_INFO)) {
 656                     // check OC server and get basic information from it
 657                     operation = new GetServerInfoOperation(serverUrl, OperationsService.this);
 658
 659                 } else if (action.equals(ACTION_OAUTH2_GET_ACCESS_TOKEN)) {
 660                     /// GET ACCESS TOKEN to the OAuth server
 661                     String oauth2QueryParameters =
 662                             operationIntent.getStringExtra(EXTRA_OAUTH2_QUERY_PARAMETERS);
 663                     operation = new OAuth2GetAccessToken(
 664                             getString(R.string.oauth2_client_id),
 665                             getString(R.string.oauth2_redirect_uri),
 666                             getString(R.string.oauth2_grant_type),
 667                             oauth2QueryParameters);
 668
 669                 } else if (action.equals(ACTION_EXISTENCE_CHECK)) {
 670                     // Existence Check
 671                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 672                     boolean successIfAbsent = operationIntent.getBooleanExtra(EXTRA_SUCCESS_IF_ABSENT, false);
 673                     operation = new ExistenceCheckRemoteOperation(remotePath, OperationsService.this, successIfAbsent);
 674
 675                 } else if (action.equals(ACTION_GET_USER_NAME)) {
 676                     // Get User Name
 677                     operation = new GetRemoteUserNameOperation();
 678
 679                 } else if (action.equals(ACTION_RENAME)) {
 680                     // Rename file or folder
 681                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 682                     String newName = operationIntent.getStringExtra(EXTRA_NEWNAME);
 683                     operation = new RenameFileOperation(remotePath, newName);
 684
 685                 } else if (action.equals(ACTION_REMOVE)) {
 686                     // Remove file or folder
 687                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 688                     boolean onlyLocalCopy = operationIntent.getBooleanExtra(EXTRA_REMOVE_ONLY_LOCAL, false);
 689                     operation = new RemoveFileOperation(remotePath, onlyLocalCopy);
 690
 691                 } else if (action.equals(ACTION_CREATE_FOLDER)) {
 692                     // Create Folder
 693                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 694                     boolean createFullPath = operationIntent.getBooleanExtra(EXTRA_CREATE_FULL_PATH, true);
 695                     operation = new CreateFolderOperation(remotePath, createFullPath);
 696
 697                 } else if (action.equals(ACTION_SYNC_FILE)) {
 698                     // Sync file
 699                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 700                     boolean syncFileContents = operationIntent.getBooleanExtra(EXTRA_SYNC_FILE_CONTENTS, true);
 701                     operation = new SynchronizeFileOperation(
 702                             remotePath, account, syncFileContents, getApplicationContext()
 703                     );
 704
 705                 } else if (action.equals(ACTION_SYNC_FOLDER)) {
 706                     // Sync file
 707                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 708                     operation = new SynchronizeFolderOperation(
 709                             this,                       // TODO remove this dependency from construction time
 710                             remotePath,
 711                             account,
 712                             System.currentTimeMillis()  // TODO remove this dependency from construction time
 713                     );
 714
 715                 } else if (action.equals(ACTION_MOVE_FILE)) {
 716                     // Move file/folder
 717                     String remotePath = operationIntent.getStringExtra(EXTRA_REMOTE_PATH);
 718                     String newParentPath = operationIntent.getStringExtra(EXTRA_NEW_PARENT_PATH);
 719                     operation = new MoveFileOperation(remotePath,newParentPath,account);
 720                 }
 721
 722             }
 723
 724         } catch (IllegalArgumentException e) {
 725             Log_OC.e(TAG, "Bad information provided in intent: " + e.getMessage());
 726             operation = null;
 727         }
 728
 729         if (operation != null) {
 730             return new Pair<Target , RemoteOperation>(target, operation);
 731         } else {
 732             return null;
 733         }
 734     }
 735
 736
 737     /**
 738      * Sends a broadcast when a new operation is added to the queue.
 739      *
 740      * Local broadcasts are only delivered to activities in the same process, but can't be done sticky :\
 741      *
 742      * @param target            Account or URL pointing to an OC server.
 743      * @param operation         Added operation.
 744      */
 745     private void sendBroadcastNewOperation(Target target, RemoteOperation operation) {
 746         Intent intent = new Intent(ACTION_OPERATION_ADDED);
 747         if (target.mAccount != null) {
 748             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 749         } else {
 750             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 751         }
 752         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 753         //lbm.sendBroadcast(intent);
 754         sendStickyBroadcast(intent);
 755     }
 756
 757
 758     // TODO - maybe add a notification for real start of operations
 759
 760     /**
 761      * Sends a LOCAL broadcast when an operations finishes in order to the interested activities can update their view
 762      *
 763      * Local broadcasts are only delivered to activities in the same process.
 764      *
 765      * @param target            Account or URL pointing to an OC server.
 766      * @param operation         Finished operation.
 767      * @param result            Result of the operation.
 768      */
 769     private void sendBroadcastOperationFinished(Target target, RemoteOperation operation, RemoteOperationResult result) {
 770         Intent intent = new Intent(ACTION_OPERATION_FINISHED);
 771         intent.putExtra(EXTRA_RESULT, result);
 772         if (target.mAccount != null) {
 773             intent.putExtra(EXTRA_ACCOUNT, target.mAccount);
 774         } else {
 775             intent.putExtra(EXTRA_SERVER_URL, target.mServerUrl);
 776         }
 777         //LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(this);
 778         //lbm.sendBroadcast(intent);
 779         sendStickyBroadcast(intent);
 780     }
 781
 782
 783     /**
 784      * Notifies the currently subscribed listeners about the end of an operation.
 785      *
 786      * @param target            Account or URL pointing to an OC server.
 787      * @param operation         Finished operation.
 788      * @param result            Result of the operation.
 789      */
 790     private void dispatchResultToOperationListeners(
 791             Target target, final RemoteOperation operation, final RemoteOperationResult result) {
 792         int count = 0;
 793         Iterator<OnRemoteOperationListener> listeners = mOperationsBinder.mBoundListeners.keySet().iterator();
 794         while (listeners.hasNext()) {
 795             final OnRemoteOperationListener listener = listeners.next();
 796             final Handler handler = mOperationsBinder.mBoundListeners.get(listener);
 797             if (handler != null) {
 798                 handler.post(new Runnable() {
 799                     @Override
 800                     public void run() {
 801                         listener.onRemoteOperationFinish(operation, result);
 802                     }
 803                 });
 804                 count += 1;
 805             }
 806         }
 807         if (count == 0) {
 808             //mOperationResults.put(operation.hashCode(), result);
 809             Pair<RemoteOperation, RemoteOperationResult> undispatched =
 810                     new Pair<RemoteOperation, RemoteOperationResult>(operation, result);
 811             mUndispatchedFinishedOperations.put(operation.hashCode(), undispatched);
 812         }
 813         Log_OC.d(TAG, "Called " + count + " listeners");
 814     }
 815 }