src/com/owncloud/android/datamodel/FileDataStorageManager.java

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   Copyright (C) 2012  Bartek Przybylski
   5  *   Copyright (C) 2015 ownCloud Inc.
   6  *
   7  *   This program is free software: you can redistribute it and/or modify
   8  *   it under the terms of the GNU General Public License version 2,
   9  *   as published by the Free Software Foundation.
  10  *
  11  *   This program is distributed in the hope that it will be useful,
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *   GNU General Public License for more details.
  15  *
  16  *   You should have received a copy of the GNU General Public License
  17  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20
  21 package com.owncloud.android.datamodel;
  22
  23 import java.io.File;
  24 import java.util.ArrayList;
  25 import java.util.Collection;
  26 import java.util.Collections;
  27 import java.util.Iterator;
  28 import java.util.List;
  29 import java.util.Vector;
  30
  31 import android.accounts.Account;
  32 import android.content.ContentProviderClient;
  33 import android.content.ContentProviderOperation;
  34 import android.content.ContentProviderResult;
  35 import android.content.ContentResolver;
  36 import android.content.ContentUris;
  37 import android.content.ContentValues;
  38 import android.content.Intent;
  39 import android.content.OperationApplicationException;
  40 import android.database.Cursor;
  41 import android.net.Uri;
  42 import android.os.RemoteException;
  43 import android.provider.MediaStore;
  44
  45 import com.owncloud.android.MainApp;
  46 import com.owncloud.android.db.ProviderMeta.ProviderTableMeta;
  47 import com.owncloud.android.lib.common.utils.Log_OC;
  48 import com.owncloud.android.lib.resources.files.FileUtils;
  49 import com.owncloud.android.lib.resources.shares.OCShare;
  50 import com.owncloud.android.lib.resources.shares.ShareType;
  51 import com.owncloud.android.utils.FileStorageUtils;
  52
  53 import java.io.FileInputStream;
  54 import java.io.FileOutputStream;
  55 import java.io.IOException;
  56 import java.io.InputStream;
  57 import java.io.OutputStream;
  58
  59 public class FileDataStorageManager {
  60
  61     public static final int ROOT_PARENT_ID = 0;
  62
  63     private ContentResolver mContentResolver;
  64     private ContentProviderClient mContentProviderClient;
  65     private Account mAccount;
  66
  67     private static String TAG = FileDataStorageManager.class.getSimpleName();
  68
  69
  70     public FileDataStorageManager(Account account, ContentResolver cr) {
  71         mContentProviderClient = null;
  72         mContentResolver = cr;
  73         mAccount = account;
  74     }
  75
  76     public FileDataStorageManager(Account account, ContentProviderClient cp) {
  77         mContentProviderClient = cp;
  78         mContentResolver = null;
  79         mAccount = account;
  80     }
  81
  82
  83     public void setAccount(Account account) {
  84         mAccount = account;
  85     }
  86
  87     public Account getAccount() {
  88         return mAccount;
  89     }
  90
  91     public void setContentResolver(ContentResolver cr) {
  92         mContentResolver = cr;
  93     }
  94
  95     public ContentResolver getContentResolver() {
  96         return mContentResolver;
  97     }
  98
  99     public void setContentProviderClient(ContentProviderClient cp) {
 100         mContentProviderClient = cp;
 101     }
 102
 103     public ContentProviderClient getContentProviderClient() {
 104         return mContentProviderClient;
 105     }
 106
 107
 108     public OCFile getFileByPath(String path) {
 109         Cursor c = getCursorForValue(ProviderTableMeta.FILE_PATH, path);
 110         OCFile file = null;
 111         if (c.moveToFirst()) {
 112             file = createFileInstance(c);
 113         }
 114         c.close();
 115         if (file == null && OCFile.ROOT_PATH.equals(path)) {
 116             return createRootDir(); // root should always exist
 117         }
 118         return file;
 119     }
 120
 121
 122     public OCFile getFileById(long id) {
 123         Cursor c = getCursorForValue(ProviderTableMeta._ID, String.valueOf(id));
 124         OCFile file = null;
 125         if (c.moveToFirst()) {
 126             file = createFileInstance(c);
 127         }
 128         c.close();
 129         return file;
 130     }
 131
 132     public OCFile getFileByLocalPath(String path) {
 133         Cursor c = getCursorForValue(ProviderTableMeta.FILE_STORAGE_PATH, path);
 134         OCFile file = null;
 135         if (c.moveToFirst()) {
 136             file = createFileInstance(c);
 137         }
 138         c.close();
 139         return file;
 140     }
 141
 142     public boolean fileExists(long id) {
 143         return fileExists(ProviderTableMeta._ID, String.valueOf(id));
 144     }
 145
 146     public boolean fileExists(String path) {
 147         return fileExists(ProviderTableMeta.FILE_PATH, path);
 148     }
 149
 150
 151     public Vector<OCFile> getFolderContent(OCFile f/*, boolean onlyOnDevice*/) {
 152         if (f != null && f.isFolder() && f.getFileId() != -1) {
 153             // TODO Enable when "On Device" is recovered ?
 154             return getFolderContent(f.getFileId()/*, onlyOnDevice*/);
 155
 156         } else {
 157             return new Vector<OCFile>();
 158         }
 159     }
 160
 161
 162     public Vector<OCFile> getFolderImages(OCFile folder/*, boolean onlyOnDevice*/) {
 163         Vector<OCFile> ret = new Vector<OCFile>();
 164         if (folder != null) {
 165             // TODO better implementation, filtering in the access to database instead of here
 166             // TODO Enable when "On Device" is recovered ?
 167             Vector<OCFile> tmp = getFolderContent(folder/*, onlyOnDevice*/);
 168             OCFile current = null;
 169             for (int i=0; i<tmp.size(); i++) {
 170                 current = tmp.get(i);
 171                 if (current.isImage()) {
 172                     ret.add(current);
 173                 }
 174             }
 175         }
 176         return ret;
 177     }
 178
 179     public boolean saveFile(OCFile file) {
 180         boolean overriden = false;
 181         ContentValues cv = new ContentValues();
 182         cv.put(ProviderTableMeta.FILE_MODIFIED, file.getModificationTimestamp());
 183         cv.put(
 184             ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA,
 185             file.getModificationTimestampAtLastSyncForData()
 186         );
 187         cv.put(ProviderTableMeta.FILE_CREATION, file.getCreationTimestamp());
 188         cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, file.getFileLength());
 189         cv.put(ProviderTableMeta.FILE_CONTENT_TYPE, file.getMimetype());
 190         cv.put(ProviderTableMeta.FILE_NAME, file.getFileName());
 191         //if (file.getParentId() != DataStorageManager.ROOT_PARENT_ID)
 192         cv.put(ProviderTableMeta.FILE_PARENT, file.getParentId());
 193         cv.put(ProviderTableMeta.FILE_PATH, file.getRemotePath());
 194         if (!file.isFolder())
 195             cv.put(ProviderTableMeta.FILE_STORAGE_PATH, file.getStoragePath());
 196         cv.put(ProviderTableMeta.FILE_ACCOUNT_OWNER, mAccount.name);
 197         cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE, file.getLastSyncDateForProperties());
 198         cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA, file.getLastSyncDateForData());
 199         cv.put(ProviderTableMeta.FILE_KEEP_IN_SYNC, file.isFavorite() ? 1 : 0);
 200         cv.put(ProviderTableMeta.FILE_ETAG, file.getEtag());
 201         cv.put(ProviderTableMeta.FILE_SHARE_BY_LINK, file.isShareByLink() ? 1 : 0);
 202         cv.put(ProviderTableMeta.FILE_PUBLIC_LINK, file.getPublicLink());
 203         cv.put(ProviderTableMeta.FILE_PERMISSIONS, file.getPermissions());
 204         cv.put(ProviderTableMeta.FILE_REMOTE_ID, file.getRemoteId());
 205         cv.put(ProviderTableMeta.FILE_UPDATE_THUMBNAIL, file.needsUpdateThumbnail());
 206         cv.put(ProviderTableMeta.FILE_IS_DOWNLOADING, file.isDownloading());
 207
 208         boolean sameRemotePath = fileExists(file.getRemotePath());
 209         if (sameRemotePath ||
 210                 fileExists(file.getFileId())        ) {  // for renamed files
 211
 212             OCFile oldFile = null;
 213             if (sameRemotePath) {
 214                 oldFile = getFileByPath(file.getRemotePath());
 215                 file.setFileId(oldFile.getFileId());
 216             } else {
 217                 oldFile = getFileById(file.getFileId());
 218             }
 219
 220             overriden = true;
 221             if (getContentResolver() != null) {
 222                 getContentResolver().update(ProviderTableMeta.CONTENT_URI, cv,
 223                         ProviderTableMeta._ID + "=?",
 224                         new String[]{String.valueOf(file.getFileId())});
 225             } else {
 226                 try {
 227                     getContentProviderClient().update(ProviderTableMeta.CONTENT_URI,
 228                             cv, ProviderTableMeta._ID + "=?",
 229                             new String[]{String.valueOf(file.getFileId())});
 230                 } catch (RemoteException e) {
 231                     Log_OC.e(TAG,
 232                             "Fail to insert insert file to database "
 233                                     + e.getMessage());
 234                 }
 235             }
 236         } else {
 237             Uri result_uri = null;
 238             if (getContentResolver() != null) {
 239                 result_uri = getContentResolver().insert(
 240                         ProviderTableMeta.CONTENT_URI_FILE, cv);
 241             } else {
 242                 try {
 243                     result_uri = getContentProviderClient().insert(
 244                             ProviderTableMeta.CONTENT_URI_FILE, cv);
 245                 } catch (RemoteException e) {
 246                     Log_OC.e(TAG,
 247                             "Fail to insert insert file to database "
 248                                     + e.getMessage());
 249                 }
 250             }
 251             if (result_uri != null) {
 252                 long new_id = Long.parseLong(result_uri.getPathSegments()
 253                         .get(1));
 254                 file.setFileId(new_id);
 255             }
 256         }
 257
 258 //        if (file.isFolder()) {
 259 //            updateFolderSize(file.getFileId());
 260 //        } else {
 261 //            updateFolderSize(file.getParentId());
 262 //        }
 263
 264         return overriden;
 265     }
 266
 267
 268     /**
 269      * Inserts or updates the list of files contained in a given folder.
 270      * <p/>
 271      * CALLER IS THE RESPONSIBLE FOR GRANTING RIGHT UPDATE OF INFORMATION, NOT THIS METHOD.
 272      * HERE ONLY DATA CONSISTENCY SHOULD BE GRANTED
 273      *
 274      * @param folder
 275      * @param updatedFiles
 276      * @param filesToRemove
 277      */
 278     public void saveFolder(
 279             OCFile folder, Collection<OCFile> updatedFiles, Collection<OCFile> filesToRemove
 280         ) {
 281
 282         Log_OC.d(TAG,  "Saving folder " + folder.getRemotePath() + " with " + updatedFiles.size()
 283                 + " children and " + filesToRemove.size() + " files to remove");
 284
 285         ArrayList<ContentProviderOperation> operations =
 286                 new ArrayList<ContentProviderOperation>(updatedFiles.size());
 287
 288         // prepare operations to insert or update files to save in the given folder
 289         for (OCFile file : updatedFiles) {
 290             ContentValues cv = new ContentValues();
 291             cv.put(ProviderTableMeta.FILE_MODIFIED, file.getModificationTimestamp());
 292             cv.put(
 293                 ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA,
 294                 file.getModificationTimestampAtLastSyncForData()
 295             );
 296             cv.put(ProviderTableMeta.FILE_CREATION, file.getCreationTimestamp());
 297             cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, file.getFileLength());
 298             cv.put(ProviderTableMeta.FILE_CONTENT_TYPE, file.getMimetype());
 299             cv.put(ProviderTableMeta.FILE_NAME, file.getFileName());
 300             //cv.put(ProviderTableMeta.FILE_PARENT, file.getParentId());
 301             cv.put(ProviderTableMeta.FILE_PARENT, folder.getFileId());
 302             cv.put(ProviderTableMeta.FILE_PATH, file.getRemotePath());
 303             if (!file.isFolder()) {
 304                 cv.put(ProviderTableMeta.FILE_STORAGE_PATH, file.getStoragePath());
 305             }
 306             cv.put(ProviderTableMeta.FILE_ACCOUNT_OWNER, mAccount.name);
 307             cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE, file.getLastSyncDateForProperties());
 308             cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA, file.getLastSyncDateForData());
 309             cv.put(ProviderTableMeta.FILE_KEEP_IN_SYNC, file.isFavorite() ? 1 : 0);
 310             cv.put(ProviderTableMeta.FILE_ETAG, file.getEtag());
 311             cv.put(ProviderTableMeta.FILE_SHARE_BY_LINK, file.isShareByLink() ? 1 : 0);
 312             cv.put(ProviderTableMeta.FILE_PUBLIC_LINK, file.getPublicLink());
 313             cv.put(ProviderTableMeta.FILE_PERMISSIONS, file.getPermissions());
 314             cv.put(ProviderTableMeta.FILE_REMOTE_ID, file.getRemoteId());
 315             cv.put(ProviderTableMeta.FILE_UPDATE_THUMBNAIL, file.needsUpdateThumbnail());
 316             cv.put(ProviderTableMeta.FILE_IS_DOWNLOADING, file.isDownloading());
 317
 318             boolean existsByPath = fileExists(file.getRemotePath());
 319             if (existsByPath || fileExists(file.getFileId())) {
 320                 // updating an existing file
 321                 operations.add(ContentProviderOperation.newUpdate(ProviderTableMeta.CONTENT_URI).
 322                         withValues(cv).
 323                         withSelection(ProviderTableMeta._ID + "=?",
 324                                 new String[]{String.valueOf(file.getFileId())})
 325                         .build());
 326
 327             } else {
 328                 // adding a new file
 329                 operations.add(ContentProviderOperation.newInsert(ProviderTableMeta.CONTENT_URI).
 330                         withValues(cv).build());
 331             }
 332         }
 333
 334         // prepare operations to remove files in the given folder
 335         String where = ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?" + " AND " +
 336                 ProviderTableMeta.FILE_PATH + "=?";
 337         String [] whereArgs = null;
 338         for (OCFile file : filesToRemove) {
 339             if (file.getParentId() == folder.getFileId()) {
 340                 whereArgs = new String[]{mAccount.name, file.getRemotePath()};
 341                 //Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_FILE, "" + file.getFileId());
 342                 if (file.isFolder()) {
 343                     operations.add(ContentProviderOperation.newDelete(
 344                             ContentUris.withAppendedId(
 345                                     ProviderTableMeta.CONTENT_URI_DIR, file.getFileId()
 346                             )
 347                     ).withSelection(where, whereArgs).build());
 348
 349                     File localFolder =
 350                             new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, file));
 351                     if (localFolder.exists()) {
 352                         removeLocalFolder(localFolder);
 353                     }
 354                 } else {
 355                     operations.add(ContentProviderOperation.newDelete(
 356                             ContentUris.withAppendedId(
 357                                     ProviderTableMeta.CONTENT_URI_FILE, file.getFileId()
 358                             )
 359                     ).withSelection(where, whereArgs).build());
 360
 361                     if (file.isDown()) {
 362                         String path = file.getStoragePath();
 363                         new File(path).delete();
 364                         triggerMediaScan(path); // notify MediaScanner about removed file
 365                     }
 366                 }
 367             }
 368         }
 369
 370         // update metadata of folder
 371         ContentValues cv = new ContentValues();
 372         cv.put(ProviderTableMeta.FILE_MODIFIED, folder.getModificationTimestamp());
 373         cv.put(
 374             ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA,
 375             folder.getModificationTimestampAtLastSyncForData()
 376         );
 377         cv.put(ProviderTableMeta.FILE_CREATION, folder.getCreationTimestamp());
 378         cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, 0);
 379         cv.put(ProviderTableMeta.FILE_CONTENT_TYPE, folder.getMimetype());
 380         cv.put(ProviderTableMeta.FILE_NAME, folder.getFileName());
 381         cv.put(ProviderTableMeta.FILE_PARENT, folder.getParentId());
 382         cv.put(ProviderTableMeta.FILE_PATH, folder.getRemotePath());
 383         cv.put(ProviderTableMeta.FILE_ACCOUNT_OWNER, mAccount.name);
 384         cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE, folder.getLastSyncDateForProperties());
 385         cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA, folder.getLastSyncDateForData());
 386         cv.put(ProviderTableMeta.FILE_KEEP_IN_SYNC, folder.isFavorite() ? 1 : 0);
 387         cv.put(ProviderTableMeta.FILE_ETAG, folder.getEtag());
 388         cv.put(ProviderTableMeta.FILE_SHARE_BY_LINK, folder.isShareByLink() ? 1 : 0);
 389         cv.put(ProviderTableMeta.FILE_PUBLIC_LINK, folder.getPublicLink());
 390         cv.put(ProviderTableMeta.FILE_PERMISSIONS, folder.getPermissions());
 391         cv.put(ProviderTableMeta.FILE_REMOTE_ID, folder.getRemoteId());
 392
 393         operations.add(ContentProviderOperation.newUpdate(ProviderTableMeta.CONTENT_URI).
 394                 withValues(cv).
 395                 withSelection(ProviderTableMeta._ID + "=?",
 396                         new String[]{String.valueOf(folder.getFileId())})
 397                 .build());
 398
 399         // apply operations in batch
 400         ContentProviderResult[] results = null;
 401         Log_OC.d(TAG, "Sending " + operations.size() + " operations to FileContentProvider");
 402         try {
 403             if (getContentResolver() != null) {
 404                 results = getContentResolver().applyBatch(MainApp.getAuthority(), operations);
 405
 406             } else {
 407                 results = getContentProviderClient().applyBatch(operations);
 408             }
 409
 410         } catch (OperationApplicationException e) {
 411             Log_OC.e(TAG, "Exception in batch of operations " + e.getMessage());
 412
 413         } catch (RemoteException e) {
 414             Log_OC.e(TAG, "Exception in batch of operations  " + e.getMessage());
 415         }
 416
 417         // update new id in file objects for insertions
 418         if (results != null) {
 419             long newId;
 420             Iterator<OCFile> filesIt = updatedFiles.iterator();
 421             OCFile file = null;
 422             for (int i = 0; i < results.length; i++) {
 423                 if (filesIt.hasNext()) {
 424                     file = filesIt.next();
 425                 } else {
 426                     file = null;
 427                 }
 428                 if (results[i].uri != null) {
 429                     newId = Long.parseLong(results[i].uri.getPathSegments().get(1));
 430                     //updatedFiles.get(i).setFileId(newId);
 431                     if (file != null) {
 432                         file.setFileId(newId);
 433                     }
 434                 }
 435             }
 436         }
 437
 438         //updateFolderSize(folder.getFileId());
 439
 440     }
 441
 442
 443 //    /**
 444 //     *
 445 //     * @param id
 446 //     */
 447 //    private void updateFolderSize(long id) {
 448 //        if (id > FileDataStorageManager.ROOT_PARENT_ID) {
 449 //            Log_OC.d(TAG, "Updating size of " + id);
 450 //            if (getContentResolver() != null) {
 451 //                getContentResolver().update(ProviderTableMeta.CONTENT_URI_DIR,
 452 //                        new ContentValues(),
 453                             // won't be used, but cannot be null; crashes in KLP
 454 //                        ProviderTableMeta._ID + "=?",
 455 //                        new String[] { String.valueOf(id) });
 456 //            } else {
 457 //                try {
 458 //                    getContentProviderClient().update(ProviderTableMeta.CONTENT_URI_DIR,
 459 //                            new ContentValues(),
 460                                 // won't be used, but cannot be null; crashes in KLP
 461 //                            ProviderTableMeta._ID + "=?",
 462 //                            new String[] { String.valueOf(id) });
 463 //
 464 //                } catch (RemoteException e) {
 465 //                    Log_OC.e(
 466 //    TAG, "Exception in update of folder size through compatibility patch " + e.getMessage());
 467 //                }
 468 //            }
 469 //        } else {
 470 //            Log_OC.e(TAG,  "not updating size for folder " + id);
 471 //        }
 472 //    }
 473
 474
 475     public boolean removeFile(OCFile file, boolean removeDBData, boolean removeLocalCopy) {
 476         boolean success = true;
 477         if (file != null) {
 478             if (file.isFolder()) {
 479                 success = removeFolder(file, removeDBData, removeLocalCopy);
 480
 481             } else {
 482                 if (removeDBData) {
 483                     Uri file_uri = ContentUris.withAppendedId(
 484                         ProviderTableMeta.CONTENT_URI_FILE,
 485                         file.getFileId()
 486                     );
 487                     String where = ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?" + " AND " +
 488                             ProviderTableMeta.FILE_PATH + "=?";
 489                     String [] whereArgs = new String[]{mAccount.name, file.getRemotePath()};
 490                     int deleted = 0;
 491                     if (getContentProviderClient() != null) {
 492                         try {
 493                             deleted = getContentProviderClient().delete(file_uri, where, whereArgs);
 494                         } catch (RemoteException e) {
 495                             e.printStackTrace();
 496                         }
 497                     } else {
 498                         deleted = getContentResolver().delete(file_uri, where, whereArgs);
 499                     }
 500                     success &= (deleted > 0);
 501                 }
 502                 String localPath = file.getStoragePath();
 503                 if (removeLocalCopy && file.isDown() && localPath != null && success) {
 504                     success = new File(localPath).delete();
 505                     if (success) {
 506                         deleteFileInMediaScan(localPath);
 507                     }
 508                     if (!removeDBData && success) {
 509                         // maybe unnecessary, but should be checked TODO remove if unnecessary
 510                         file.setStoragePath(null);
 511                         saveFile(file);
 512                     }
 513                 }
 514             }
 515         }
 516         return success;
 517     }
 518
 519
 520     public boolean removeFolder(OCFile folder, boolean removeDBData, boolean removeLocalContent) {
 521         boolean success = true;
 522         if (folder != null && folder.isFolder()) {
 523             if (removeDBData && folder.getFileId() != -1) {
 524                 success = removeFolderInDb(folder);
 525             }
 526             if (removeLocalContent && success) {
 527                 success = removeLocalFolder(folder);
 528             }
 529         }
 530         return success;
 531     }
 532
 533     private boolean removeFolderInDb(OCFile folder) {
 534         Uri folder_uri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, "" +
 535                 folder.getFileId());   // URI for recursive deletion
 536         String where = ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?" + " AND " +
 537                 ProviderTableMeta.FILE_PATH + "=?";
 538         String [] whereArgs = new String[]{mAccount.name, folder.getRemotePath()};
 539         int deleted = 0;
 540         if (getContentProviderClient() != null) {
 541             try {
 542                 deleted = getContentProviderClient().delete(folder_uri, where, whereArgs);
 543             } catch (RemoteException e) {
 544                 e.printStackTrace();
 545             }
 546         } else {
 547             deleted = getContentResolver().delete(folder_uri, where, whereArgs);
 548         }
 549         return deleted > 0;
 550     }
 551
 552     private boolean removeLocalFolder(OCFile folder) {
 553         boolean success = true;
 554         String localFolderPath = FileStorageUtils.getDefaultSavePathFor(mAccount.name, folder);
 555         File localFolder = new File(localFolderPath);
 556         if (localFolder.exists()) {
 557             // stage 1: remove the local files already registered in the files database
 558             // TODO Enable when "On Device" is recovered ?
 559             Vector<OCFile> files = getFolderContent(folder.getFileId()/*, false*/);
 560             if (files != null) {
 561                 for (OCFile file : files) {
 562                     if (file.isFolder()) {
 563                         success &= removeLocalFolder(file);
 564                     } else {
 565                         if (file.isDown()) {
 566                             File localFile = new File(file.getStoragePath());
 567                             success &= localFile.delete();
 568                             if (success) {
 569                                 // notify MediaScanner about removed file
 570                                 deleteFileInMediaScan(file.getStoragePath());
 571                                 file.setStoragePath(null);
 572                                 saveFile(file);
 573                             }
 574                         }
 575                     }
 576                 }
 577             }
 578
 579             // stage 2: remove the folder itself and any local file inside out of sync;
 580             //          for instance, after clearing the app cache or reinstalling
 581             success &= removeLocalFolder(localFolder);
 582         }
 583         return success;
 584     }
 585
 586     private boolean removeLocalFolder(File localFolder) {
 587         boolean success = true;
 588         File[] localFiles = localFolder.listFiles();
 589         if (localFiles != null) {
 590             for (File localFile : localFiles) {
 591                 if (localFile.isDirectory()) {
 592                     success &= removeLocalFolder(localFile);
 593                 } else {
 594                     String path = localFile.getAbsolutePath();
 595                     success &= localFile.delete();
 596                 }
 597             }
 598         }
 599         success &= localFolder.delete();
 600         return success;
 601     }
 602
 603
 604     /**
 605      * Updates database and file system for a file or folder that was moved to a different location.
 606      *
 607      * TODO explore better (faster) implementations
 608      * TODO throw exceptions up !
 609      */
 610     public void moveLocalFile(OCFile file, String targetPath, String targetParentPath) {
 611
 612         if (file != null && file.fileExists() && !OCFile.ROOT_PATH.equals(file.getFileName())) {
 613
 614             OCFile targetParent = getFileByPath(targetParentPath);
 615             if (targetParent == null) {
 616                 throw new IllegalStateException("Parent folder of the target path does not exist!!");
 617             }
 618
 619             /// 1. get all the descendants of the moved element in a single QUERY
 620             Cursor c = null;
 621             if (getContentProviderClient() != null) {
 622                 try {
 623                     c = getContentProviderClient().query(
 624                             ProviderTableMeta.CONTENT_URI,
 625                             null,
 626                             ProviderTableMeta.FILE_ACCOUNT_OWNER + "=? AND " +
 627                                     ProviderTableMeta.FILE_PATH + " LIKE ? ",
 628                             new String[]{
 629                                     mAccount.name,
 630                                     file.getRemotePath() + "%"
 631                             },
 632                             ProviderTableMeta.FILE_PATH + " ASC "
 633                     );
 634                 } catch (RemoteException e) {
 635                     Log_OC.e(TAG, e.getMessage());
 636                 }
 637
 638             } else {
 639                 c = getContentResolver().query(
 640                         ProviderTableMeta.CONTENT_URI,
 641                         null,
 642                         ProviderTableMeta.FILE_ACCOUNT_OWNER + "=? AND " +
 643                                 ProviderTableMeta.FILE_PATH + " LIKE ? ",
 644                         new String[]{
 645                                 mAccount.name,
 646                                 file.getRemotePath() + "%"
 647                         },
 648                         ProviderTableMeta.FILE_PATH + " ASC "
 649                 );
 650             }
 651
 652             /// 2. prepare a batch of update operations to change all the descendants
 653             ArrayList<ContentProviderOperation> operations =
 654                     new ArrayList<ContentProviderOperation>(c.getCount());
 655             String defaultSavePath = FileStorageUtils.getSavePath(mAccount.name);
 656             List<String> originalPathsToTriggerMediaScan = new ArrayList<String>();
 657             List<String> newPathsToTriggerMediaScan = new ArrayList<String>();
 658             if (c.moveToFirst()) {
 659                 int lengthOfOldPath = file.getRemotePath().length();
 660                 int lengthOfOldStoragePath = defaultSavePath.length() + lengthOfOldPath;
 661                 do {
 662                     ContentValues cv = new ContentValues(); // keep construction in the loop
 663                     OCFile child = createFileInstance(c);
 664                     cv.put(
 665                             ProviderTableMeta.FILE_PATH,
 666                             targetPath + child.getRemotePath().substring(lengthOfOldPath)
 667                     );
 668                     if (child.getStoragePath() != null &&
 669                             child.getStoragePath().startsWith(defaultSavePath)) {
 670                         // update link to downloaded content - but local move is not done here!
 671                         String targetLocalPath = defaultSavePath + targetPath +
 672                                 child.getStoragePath().substring(lengthOfOldStoragePath);
 673
 674                         cv.put(ProviderTableMeta.FILE_STORAGE_PATH, targetLocalPath);
 675
 676                         originalPathsToTriggerMediaScan.add(child.getStoragePath());
 677                         newPathsToTriggerMediaScan.add(targetLocalPath);
 678
 679                     }
 680                     if (child.getRemotePath().equals(file.getRemotePath())) {
 681                         cv.put(
 682                                 ProviderTableMeta.FILE_PARENT,
 683                                 targetParent.getFileId()
 684                         );
 685                     }
 686                     operations.add(
 687                             ContentProviderOperation.newUpdate(ProviderTableMeta.CONTENT_URI).
 688                                     withValues(cv).
 689                                     withSelection(
 690                                             ProviderTableMeta._ID + "=?",
 691                                             new String[]{String.valueOf(child.getFileId())}
 692                                     )
 693                                     .build());
 694
 695                 } while (c.moveToNext());
 696             }
 697             c.close();
 698
 699             /// 3. apply updates in batch
 700             try {
 701                 if (getContentResolver() != null) {
 702                     getContentResolver().applyBatch(MainApp.getAuthority(), operations);
 703
 704                 } else {
 705                     getContentProviderClient().applyBatch(operations);
 706                 }
 707
 708             } catch (Exception e) {
 709                 Log_OC.e(TAG, "Fail to update " + file.getFileId() + " and descendants in database", e);
 710             }
 711
 712             /// 4. move in local file system
 713             String originalLocalPath = FileStorageUtils.getDefaultSavePathFor(mAccount.name, file);
 714             String targetLocalPath = defaultSavePath + targetPath;
 715             File localFile = new File(originalLocalPath);
 716             boolean renamed = false;
 717             if (localFile.exists()) {
 718                 File targetFile = new File(targetLocalPath);
 719                 File targetFolder = targetFile.getParentFile();
 720                 if (!targetFolder.exists()) {
 721                     targetFolder.mkdirs();
 722                 }
 723                 renamed = localFile.renameTo(targetFile);
 724             }
 725
 726             if (renamed) {
 727                 Iterator<String> it = originalPathsToTriggerMediaScan.iterator();
 728                 while (it.hasNext()) {
 729                     // Notify MediaScanner about removed file
 730                     deleteFileInMediaScan(it.next());
 731                 }
 732                 it = newPathsToTriggerMediaScan.iterator();
 733                 while (it.hasNext()) {
 734                     // Notify MediaScanner about new file/folder
 735                     triggerMediaScan(it.next());
 736                 }
 737             }
 738         }
 739
 740     }
 741
 742     public void copyLocalFile(OCFile file, String targetPath) {
 743
 744         if (file != null && file.fileExists() && !OCFile.ROOT_PATH.equals(file.getFileName())) {
 745             String localPath = FileStorageUtils.getDefaultSavePathFor(mAccount.name, file);
 746             File localFile = new File(localPath);
 747             boolean copied = false;
 748             String defaultSavePath = FileStorageUtils.getSavePath(mAccount.name);
 749             if (localFile.exists()) {
 750                 File targetFile = new File(defaultSavePath + targetPath);
 751                 File targetFolder = targetFile.getParentFile();
 752                 if (!targetFolder.exists()) {
 753                     targetFolder.mkdirs();
 754                 }
 755                 copied = copyFile(localFile, targetFile);
 756             }
 757             Log_OC.d(TAG, "Local file COPIED : " + copied);
 758         }
 759     }
 760
 761     private static boolean copyFile(File src, File target) {
 762         boolean ret = true;
 763
 764         InputStream in = null;
 765         OutputStream out = null;
 766
 767         try {
 768             in = new FileInputStream(src);
 769             out = new FileOutputStream(target);
 770             byte[] buf = new byte[1024];
 771             int len;
 772             while ((len = in.read(buf)) > 0) {
 773                 out.write(buf, 0, len);
 774             }
 775         } catch (IOException ex) {
 776             ret = false;
 777         } finally {
 778             if (in != null) try {
 779                 in.close();
 780             } catch (IOException e) {
 781                 e.printStackTrace(System.err);
 782             }
 783             if (out != null) try {
 784                 out.close();
 785             } catch (IOException e) {
 786                 e.printStackTrace(System.err);
 787             }
 788         }
 789
 790         return ret;
 791     }
 792
 793
 794     private Vector<OCFile> getFolderContent(long parentId/*, boolean onlyOnDevice*/) {
 795
 796         Vector<OCFile> ret = new Vector<OCFile>();
 797
 798         Uri req_uri = Uri.withAppendedPath(
 799                 ProviderTableMeta.CONTENT_URI_DIR,
 800                 String.valueOf(parentId));
 801         Cursor c = null;
 802
 803         if (getContentProviderClient() != null) {
 804             try {
 805                 c = getContentProviderClient().query(req_uri, null,
 806                         ProviderTableMeta.FILE_PARENT + "=?",
 807                         new String[]{String.valueOf(parentId)}, null);
 808             } catch (RemoteException e) {
 809                 Log_OC.e(TAG, e.getMessage());
 810                 return ret;
 811             }
 812         } else {
 813             c = getContentResolver().query(req_uri, null,
 814                     ProviderTableMeta.FILE_PARENT + "=?",
 815                     new String[]{String.valueOf(parentId)}, null);
 816         }
 817
 818         if (c.moveToFirst()) {
 819             do {
 820                 OCFile child = createFileInstance(c);
 821                 // TODO Enable when "On Device" is recovered ?
 822                 // if (child.isFolder() || !onlyOnDevice || onlyOnDevice && child.isDown()){
 823                     ret.add(child);
 824                 // }
 825             } while (c.moveToNext());
 826         }
 827
 828         c.close();
 829
 830         Collections.sort(ret);
 831
 832         return ret;
 833     }
 834
 835
 836     private OCFile createRootDir() {
 837         OCFile file = new OCFile(OCFile.ROOT_PATH);
 838         file.setMimetype("DIR");
 839         file.setParentId(FileDataStorageManager.ROOT_PARENT_ID);
 840         saveFile(file);
 841         return file;
 842     }
 843
 844     private boolean fileExists(String cmp_key, String value) {
 845         Cursor c;
 846         if (getContentResolver() != null) {
 847             c = getContentResolver()
 848                     .query(ProviderTableMeta.CONTENT_URI,
 849                             null,
 850                             cmp_key + "=? AND "
 851                                     + ProviderTableMeta.FILE_ACCOUNT_OWNER
 852                                     + "=?",
 853                             new String[]{value, mAccount.name}, null);
 854         } else {
 855             try {
 856                 c = getContentProviderClient().query(
 857                         ProviderTableMeta.CONTENT_URI,
 858                         null,
 859                         cmp_key + "=? AND "
 860                                 + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?",
 861                         new String[]{value, mAccount.name}, null);
 862             } catch (RemoteException e) {
 863                 Log_OC.e(TAG,
 864                         "Couldn't determine file existance, assuming non existance: "
 865                                 + e.getMessage());
 866                 return false;
 867             }
 868         }
 869         boolean retval = c.moveToFirst();
 870         c.close();
 871         return retval;
 872     }
 873
 874     private Cursor getCursorForValue(String key, String value) {
 875         Cursor c = null;
 876         if (getContentResolver() != null) {
 877             c = getContentResolver()
 878                     .query(ProviderTableMeta.CONTENT_URI,
 879                             null,
 880                             key + "=? AND "
 881                                     + ProviderTableMeta.FILE_ACCOUNT_OWNER
 882                                     + "=?",
 883                             new String[]{value, mAccount.name}, null);
 884         } else {
 885             try {
 886                 c = getContentProviderClient().query(
 887                         ProviderTableMeta.CONTENT_URI,
 888                         null,
 889                         key + "=? AND " + ProviderTableMeta.FILE_ACCOUNT_OWNER
 890                                 + "=?", new String[]{value, mAccount.name},
 891                         null);
 892             } catch (RemoteException e) {
 893                 Log_OC.e(TAG, "Could not get file details: " + e.getMessage());
 894                 c = null;
 895             }
 896         }
 897         return c;
 898     }
 899
 900
 901     private OCFile createFileInstance(Cursor c) {
 902         OCFile file = null;
 903         if (c != null) {
 904             file = new OCFile(c.getString(c
 905                     .getColumnIndex(ProviderTableMeta.FILE_PATH)));
 906             file.setFileId(c.getLong(c.getColumnIndex(ProviderTableMeta._ID)));
 907             file.setParentId(c.getLong(c
 908                     .getColumnIndex(ProviderTableMeta.FILE_PARENT)));
 909             file.setMimetype(c.getString(c
 910                     .getColumnIndex(ProviderTableMeta.FILE_CONTENT_TYPE)));
 911             if (!file.isFolder()) {
 912                 file.setStoragePath(c.getString(c
 913                         .getColumnIndex(ProviderTableMeta.FILE_STORAGE_PATH)));
 914                 if (file.getStoragePath() == null) {
 915                     // try to find existing file and bind it with current account;
 916                     // with the current update of SynchronizeFolderOperation, this won't be
 917                     // necessary anymore after a full synchronization of the account
 918                     File f = new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, file));
 919                     if (f.exists()) {
 920                         file.setStoragePath(f.getAbsolutePath());
 921                         file.setLastSyncDateForData(f.lastModified());
 922                     }
 923                 }
 924             }
 925             file.setFileLength(c.getLong(c
 926                     .getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH)));
 927             file.setCreationTimestamp(c.getLong(c
 928                     .getColumnIndex(ProviderTableMeta.FILE_CREATION)));
 929             file.setModificationTimestamp(c.getLong(c
 930                     .getColumnIndex(ProviderTableMeta.FILE_MODIFIED)));
 931             file.setModificationTimestampAtLastSyncForData(c.getLong(c
 932                     .getColumnIndex(ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA)));
 933             file.setLastSyncDateForProperties(c.getLong(c
 934                     .getColumnIndex(ProviderTableMeta.FILE_LAST_SYNC_DATE)));
 935             file.setLastSyncDateForData(c.getLong(c.
 936                     getColumnIndex(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA)));
 937             file.setFavorite(c.getInt(
 938                     c.getColumnIndex(ProviderTableMeta.FILE_KEEP_IN_SYNC)) == 1 ? true : false);
 939             file.setEtag(c.getString(c.getColumnIndex(ProviderTableMeta.FILE_ETAG)));
 940             file.setShareByLink(c.getInt(
 941                     c.getColumnIndex(ProviderTableMeta.FILE_SHARE_BY_LINK)) == 1 ? true : false);
 942             file.setPublicLink(c.getString(c.getColumnIndex(ProviderTableMeta.FILE_PUBLIC_LINK)));
 943             file.setPermissions(c.getString(c.getColumnIndex(ProviderTableMeta.FILE_PERMISSIONS)));
 944             file.setRemoteId(c.getString(c.getColumnIndex(ProviderTableMeta.FILE_REMOTE_ID)));
 945             file.setNeedsUpdateThumbnail(c.getInt(
 946                     c.getColumnIndex(ProviderTableMeta.FILE_UPDATE_THUMBNAIL)) == 1 ? true : false);
 947             file.setDownloading(c.getInt(
 948                     c.getColumnIndex(ProviderTableMeta.FILE_IS_DOWNLOADING)) == 1 ? true : false);
 949
 950         }
 951         return file;
 952     }
 953
 954     /**
 955      * Returns if the file/folder is shared by link or not
 956      *
 957      * @param path Path of the file/folder
 958      * @return
 959      */
 960     public boolean isShareByLink(String path) {
 961         Cursor c = getCursorForValue(ProviderTableMeta.FILE_STORAGE_PATH, path);
 962         OCFile file = null;
 963         if (c.moveToFirst()) {
 964             file = createFileInstance(c);
 965         }
 966         c.close();
 967         return file.isShareByLink();
 968     }
 969
 970     /**
 971      * Returns the public link of the file/folder
 972      *
 973      * @param path Path of the file/folder
 974      * @return
 975      */
 976     public String getPublicLink(String path) {
 977         Cursor c = getCursorForValue(ProviderTableMeta.FILE_STORAGE_PATH, path);
 978         OCFile file = null;
 979         if (c.moveToFirst()) {
 980             file = createFileInstance(c);
 981         }
 982         c.close();
 983         return file.getPublicLink();
 984     }
 985
 986
 987     // Methods for Shares
 988     public boolean saveShare(OCShare share) {
 989         boolean overriden = false;
 990         ContentValues cv = new ContentValues();
 991         cv.put(ProviderTableMeta.OCSHARES_FILE_SOURCE, share.getFileSource());
 992         cv.put(ProviderTableMeta.OCSHARES_ITEM_SOURCE, share.getItemSource());
 993         cv.put(ProviderTableMeta.OCSHARES_SHARE_TYPE, share.getShareType().getValue());
 994         cv.put(ProviderTableMeta.OCSHARES_SHARE_WITH, share.getShareWith());
 995         cv.put(ProviderTableMeta.OCSHARES_PATH, share.getPath());
 996         cv.put(ProviderTableMeta.OCSHARES_PERMISSIONS, share.getPermissions());
 997         cv.put(ProviderTableMeta.OCSHARES_SHARED_DATE, share.getSharedDate());
 998         cv.put(ProviderTableMeta.OCSHARES_EXPIRATION_DATE, share.getExpirationDate());
 999         cv.put(ProviderTableMeta.OCSHARES_TOKEN, share.getToken());
1000         cv.put(
1001             ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME,
1002             share.getSharedWithDisplayName()
1003         );
1004         cv.put(ProviderTableMeta.OCSHARES_IS_DIRECTORY, share.isFolder() ? 1 : 0);
1005         cv.put(ProviderTableMeta.OCSHARES_USER_ID, share.getUserId());
1006         cv.put(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED, share.getIdRemoteShared());
1007         cv.put(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER, mAccount.name);
1008
1009         if (shareExists(share.getIdRemoteShared())) {   // for renamed files
1010
1011             overriden = true;
1012             if (getContentResolver() != null) {
1013                 getContentResolver().update(ProviderTableMeta.CONTENT_URI_SHARE, cv,
1014                         ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + "=?",
1015                         new String[]{String.valueOf(share.getIdRemoteShared())});
1016             } else {
1017                 try {
1018                     getContentProviderClient().update(ProviderTableMeta.CONTENT_URI_SHARE,
1019                             cv, ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + "=?",
1020                             new String[]{String.valueOf(share.getIdRemoteShared())});
1021                 } catch (RemoteException e) {
1022                     Log_OC.e(TAG,
1023                             "Fail to insert insert file to database "
1024                                     + e.getMessage());
1025                 }
1026             }
1027         } else {
1028             Uri result_uri = null;
1029             if (getContentResolver() != null) {
1030                 result_uri = getContentResolver().insert(
1031                         ProviderTableMeta.CONTENT_URI_SHARE, cv);
1032             } else {
1033                 try {
1034                     result_uri = getContentProviderClient().insert(
1035                             ProviderTableMeta.CONTENT_URI_SHARE, cv);
1036                 } catch (RemoteException e) {
1037                     Log_OC.e(TAG,
1038                             "Fail to insert insert file to database "
1039                                     + e.getMessage());
1040                 }
1041             }
1042             if (result_uri != null) {
1043                 long new_id = Long.parseLong(result_uri.getPathSegments()
1044                         .get(1));
1045                 share.setId(new_id);
1046             }
1047         }
1048
1049         return overriden;
1050     }
1051
1052
1053     public OCShare getFirstShareByPathAndType(String path, ShareType type) {
1054         Cursor c = null;
1055         if (getContentResolver() != null) {
1056             c = getContentResolver().query(
1057                     ProviderTableMeta.CONTENT_URI_SHARE,
1058                     null,
1059                     ProviderTableMeta.OCSHARES_PATH + "=? AND "
1060                             + ProviderTableMeta.OCSHARES_SHARE_TYPE + "=? AND "
1061                             + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?",
1062                     new String[]{path, Integer.toString(type.getValue()), mAccount.name},
1063                     null);
1064         } else {
1065             try {
1066                 c = getContentProviderClient().query(
1067                         ProviderTableMeta.CONTENT_URI_SHARE,
1068                         null,
1069                         ProviderTableMeta.OCSHARES_PATH + "=? AND "
1070                                 + ProviderTableMeta.OCSHARES_SHARE_TYPE + "=? AND "
1071                                 + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?",
1072                         new String[]{path, Integer.toString(type.getValue()), mAccount.name},
1073                         null);
1074
1075             } catch (RemoteException e) {
1076                 Log_OC.e(TAG, "Could not get file details: " + e.getMessage());
1077                 c = null;
1078             }
1079         }
1080         OCShare share = null;
1081         if (c.moveToFirst()) {
1082             share = createShareInstance(c);
1083         }
1084         c.close();
1085         return share;
1086     }
1087
1088     private OCShare createShareInstance(Cursor c) {
1089         OCShare share = null;
1090         if (c != null) {
1091             share = new OCShare(c.getString(c
1092                     .getColumnIndex(ProviderTableMeta.OCSHARES_PATH)));
1093             share.setId(c.getLong(c.getColumnIndex(ProviderTableMeta._ID)));
1094             share.setFileSource(c.getLong(c
1095                     .getColumnIndex(ProviderTableMeta.OCSHARES_ITEM_SOURCE)));
1096             share.setShareType(ShareType.fromValue(c.getInt(c
1097                     .getColumnIndex(ProviderTableMeta.OCSHARES_SHARE_TYPE))));
1098             share.setPermissions(c.getInt(c
1099                     .getColumnIndex(ProviderTableMeta.OCSHARES_PERMISSIONS)));
1100             share.setSharedDate(c.getLong(c
1101                     .getColumnIndex(ProviderTableMeta.OCSHARES_SHARED_DATE)));
1102             share.setExpirationDate(c.getLong(c
1103                     .getColumnIndex(ProviderTableMeta.OCSHARES_EXPIRATION_DATE)));
1104             share.setToken(c.getString(c
1105                     .getColumnIndex(ProviderTableMeta.OCSHARES_TOKEN)));
1106             share.setSharedWithDisplayName(c.getString(c
1107                     .getColumnIndex(ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME)));
1108             share.setIsFolder(c.getInt(
1109                     c.getColumnIndex(ProviderTableMeta.OCSHARES_IS_DIRECTORY)) == 1 ? true : false);
1110             share.setUserId(c.getLong(c.getColumnIndex(ProviderTableMeta.OCSHARES_USER_ID)));
1111             share.setIdRemoteShared(
1112                 c.getLong(c.getColumnIndex(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED))
1113             );
1114
1115         }
1116         return share;
1117     }
1118
1119     private boolean shareExists(String cmp_key, String value) {
1120         Cursor c;
1121         if (getContentResolver() != null) {
1122             c = getContentResolver()
1123                     .query(ProviderTableMeta.CONTENT_URI_SHARE,
1124                             null,
1125                             cmp_key + "=? AND "
1126                                     + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER
1127                                     + "=?",
1128                             new String[]{value, mAccount.name}, null);
1129         } else {
1130             try {
1131                 c = getContentProviderClient().query(
1132                         ProviderTableMeta.CONTENT_URI_SHARE,
1133                         null,
1134                         cmp_key + "=? AND "
1135                                 + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?",
1136                         new String[]{value, mAccount.name}, null);
1137             } catch (RemoteException e) {
1138                 Log_OC.e(TAG,
1139                         "Couldn't determine file existance, assuming non existance: "
1140                                 + e.getMessage());
1141                 return false;
1142             }
1143         }
1144         boolean retval = c.moveToFirst();
1145         c.close();
1146         return retval;
1147     }
1148
1149     private boolean shareExists(long remoteId) {
1150         return shareExists(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED, String.valueOf(remoteId));
1151     }
1152
1153     private void cleanSharedFiles() {
1154         ContentValues cv = new ContentValues();
1155         cv.put(ProviderTableMeta.FILE_SHARE_BY_LINK, false);
1156         cv.put(ProviderTableMeta.FILE_PUBLIC_LINK, "");
1157         String where = ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
1158         String[] whereArgs = new String[]{mAccount.name};
1159
1160         if (getContentResolver() != null) {
1161             getContentResolver().update(ProviderTableMeta.CONTENT_URI, cv, where, whereArgs);
1162
1163         } else {
1164             try {
1165                 getContentProviderClient().update(
1166                         ProviderTableMeta.CONTENT_URI, cv, where, whereArgs
1167                 );
1168
1169             } catch (RemoteException e) {
1170                 Log_OC.e(TAG, "Exception in cleanSharedFiles" + e.getMessage());
1171             }
1172         }
1173     }
1174
1175     private void cleanSharedFilesInFolder(OCFile folder) {
1176         ContentValues cv = new ContentValues();
1177         cv.put(ProviderTableMeta.FILE_SHARE_BY_LINK, false);
1178         cv.put(ProviderTableMeta.FILE_PUBLIC_LINK, "");
1179         String where = ProviderTableMeta.FILE_ACCOUNT_OWNER + "=? AND " +
1180                 ProviderTableMeta.FILE_PARENT + "=?";
1181         String [] whereArgs = new String[] { mAccount.name , String.valueOf(folder.getFileId()) };
1182
1183         if (getContentResolver() != null) {
1184             getContentResolver().update(ProviderTableMeta.CONTENT_URI, cv, where, whereArgs);
1185
1186         } else {
1187             try {
1188                 getContentProviderClient().update(
1189                         ProviderTableMeta.CONTENT_URI, cv, where, whereArgs
1190                 );
1191
1192             } catch (RemoteException e) {
1193                 Log_OC.e(TAG, "Exception in cleanSharedFilesInFolder " + e.getMessage());
1194             }
1195         }
1196     }
1197
1198     private void cleanShares() {
1199         String where = ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?";
1200         String[] whereArgs = new String[]{mAccount.name};
1201
1202         if (getContentResolver() != null) {
1203             getContentResolver().delete(ProviderTableMeta.CONTENT_URI_SHARE, where, whereArgs);
1204
1205         } else {
1206             try {
1207                 getContentProviderClient().delete(
1208                         ProviderTableMeta.CONTENT_URI_SHARE, where, whereArgs
1209                 );
1210
1211             } catch (RemoteException e) {
1212                 Log_OC.e(TAG, "Exception in cleanShares" + e.getMessage());
1213             }
1214         }
1215     }
1216
1217     public void saveShares(Collection<OCShare> shares) {
1218         cleanShares();
1219         if (shares != null) {
1220             ArrayList<ContentProviderOperation> operations =
1221                     new ArrayList<ContentProviderOperation>(shares.size());
1222
1223             // prepare operations to insert or update files to save in the given folder
1224             for (OCShare share : shares) {
1225                 ContentValues cv = new ContentValues();
1226                 cv.put(ProviderTableMeta.OCSHARES_FILE_SOURCE, share.getFileSource());
1227                 cv.put(ProviderTableMeta.OCSHARES_ITEM_SOURCE, share.getItemSource());
1228                 cv.put(ProviderTableMeta.OCSHARES_SHARE_TYPE, share.getShareType().getValue());
1229                 cv.put(ProviderTableMeta.OCSHARES_SHARE_WITH, share.getShareWith());
1230                 cv.put(ProviderTableMeta.OCSHARES_PATH, share.getPath());
1231                 cv.put(ProviderTableMeta.OCSHARES_PERMISSIONS, share.getPermissions());
1232                 cv.put(ProviderTableMeta.OCSHARES_SHARED_DATE, share.getSharedDate());
1233                 cv.put(ProviderTableMeta.OCSHARES_EXPIRATION_DATE, share.getExpirationDate());
1234                 cv.put(ProviderTableMeta.OCSHARES_TOKEN, share.getToken());
1235                 cv.put(
1236                     ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME,
1237                     share.getSharedWithDisplayName()
1238                 );
1239                 cv.put(ProviderTableMeta.OCSHARES_IS_DIRECTORY, share.isFolder() ? 1 : 0);
1240                 cv.put(ProviderTableMeta.OCSHARES_USER_ID, share.getUserId());
1241                 cv.put(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED, share.getIdRemoteShared());
1242                 cv.put(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER, mAccount.name);
1243
1244                 if (shareExists(share.getIdRemoteShared())) {
1245                     // updating an existing file
1246                     operations.add(
1247                             ContentProviderOperation.newUpdate(ProviderTableMeta.CONTENT_URI_SHARE).
1248                             withValues(cv).
1249                             withSelection(
1250                                     ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + "=?",
1251                                     new String[] { String.valueOf(share.getIdRemoteShared()) }
1252                             ).
1253                             build()
1254                     );
1255
1256                 } else {
1257                     // adding a new file
1258                     operations.add(
1259                             ContentProviderOperation.newInsert(ProviderTableMeta.CONTENT_URI_SHARE).
1260                             withValues(cv).
1261                             build()
1262                     );
1263                 }
1264             }
1265
1266             // apply operations in batch
1267             if (operations.size() > 0) {
1268                 @SuppressWarnings("unused")
1269                 ContentProviderResult[] results = null;
1270                 Log_OC.d(TAG, "Sending " + operations.size() +
1271                         " operations to FileContentProvider");
1272                 try {
1273                     if (getContentResolver() != null) {
1274                         results = getContentResolver().applyBatch(
1275                                 MainApp.getAuthority(), operations
1276                         );
1277
1278                     } else {
1279                         results = getContentProviderClient().applyBatch(operations);
1280                     }
1281
1282                 } catch (OperationApplicationException e) {
1283                     Log_OC.e(TAG, "Exception in batch of operations " + e.getMessage());
1284
1285                 } catch (RemoteException e) {
1286                     Log_OC.e(TAG, "Exception in batch of operations  " + e.getMessage());
1287                 }
1288             }
1289         }
1290
1291     }
1292
1293     public void updateSharedFiles(Collection<OCFile> sharedFiles) {
1294         cleanSharedFiles();
1295
1296         if (sharedFiles != null) {
1297             ArrayList<ContentProviderOperation> operations =
1298                     new ArrayList<ContentProviderOperation>(sharedFiles.size());
1299
1300             // prepare operations to insert or update files to save in the given folder
1301             for (OCFile file : sharedFiles) {
1302                 ContentValues cv = new ContentValues();
1303                 cv.put(ProviderTableMeta.FILE_MODIFIED, file.getModificationTimestamp());
1304                 cv.put(
1305                     ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA,
1306                     file.getModificationTimestampAtLastSyncForData()
1307                 );
1308                 cv.put(ProviderTableMeta.FILE_CREATION, file.getCreationTimestamp());
1309                 cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, file.getFileLength());
1310                 cv.put(ProviderTableMeta.FILE_CONTENT_TYPE, file.getMimetype());
1311                 cv.put(ProviderTableMeta.FILE_NAME, file.getFileName());
1312                 cv.put(ProviderTableMeta.FILE_PARENT, file.getParentId());
1313                 cv.put(ProviderTableMeta.FILE_PATH, file.getRemotePath());
1314                 if (!file.isFolder()) {
1315                     cv.put(ProviderTableMeta.FILE_STORAGE_PATH, file.getStoragePath());
1316                 }
1317                 cv.put(ProviderTableMeta.FILE_ACCOUNT_OWNER, mAccount.name);
1318                 cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE, file.getLastSyncDateForProperties());
1319                 cv.put(
1320                     ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA,
1321                     file.getLastSyncDateForData()
1322                 );
1323                 cv.put(ProviderTableMeta.FILE_KEEP_IN_SYNC, file.isFavorite() ? 1 : 0);
1324                 cv.put(ProviderTableMeta.FILE_ETAG, file.getEtag());
1325                 cv.put(ProviderTableMeta.FILE_SHARE_BY_LINK, file.isShareByLink() ? 1 : 0);
1326                 cv.put(ProviderTableMeta.FILE_PUBLIC_LINK, file.getPublicLink());
1327                 cv.put(ProviderTableMeta.FILE_PERMISSIONS, file.getPermissions());
1328                 cv.put(ProviderTableMeta.FILE_REMOTE_ID, file.getRemoteId());
1329                 cv.put(
1330                     ProviderTableMeta.FILE_UPDATE_THUMBNAIL,
1331                     file.needsUpdateThumbnail() ? 1 : 0
1332                 );
1333                 cv.put(
1334                         ProviderTableMeta.FILE_IS_DOWNLOADING,
1335                         file.isDownloading() ? 1 : 0
1336                 );
1337
1338                 boolean existsByPath = fileExists(file.getRemotePath());
1339                 if (existsByPath || fileExists(file.getFileId())) {
1340                     // updating an existing file
1341                     operations.add(
1342                             ContentProviderOperation.newUpdate(ProviderTableMeta.CONTENT_URI).
1343                             withValues(cv).
1344                             withSelection(
1345                                     ProviderTableMeta._ID + "=?",
1346                                     new String[] { String.valueOf(file.getFileId()) }
1347                             ).build()
1348                     );
1349
1350                 } else {
1351                     // adding a new file
1352                     operations.add(
1353                             ContentProviderOperation.newInsert(ProviderTableMeta.CONTENT_URI).
1354                             withValues(cv).
1355                             build()
1356                     );
1357                 }
1358             }
1359
1360             // apply operations in batch
1361             if (operations.size() > 0) {
1362                 @SuppressWarnings("unused")
1363                 ContentProviderResult[] results = null;
1364                 Log_OC.d(TAG, "Sending " + operations.size() +
1365                         " operations to FileContentProvider");
1366                 try {
1367                     if (getContentResolver() != null) {
1368                         results = getContentResolver().applyBatch(
1369                                 MainApp.getAuthority(), operations
1370                         );
1371
1372                     } else {
1373                         results = getContentProviderClient().applyBatch(operations);
1374                     }
1375
1376                 } catch (OperationApplicationException e) {
1377                     Log_OC.e(TAG, "Exception in batch of operations " + e.getMessage());
1378
1379                 } catch (RemoteException e) {
1380                     Log_OC.e(TAG, "Exception in batch of operations  " + e.getMessage());
1381                 }
1382             }
1383         }
1384
1385     }
1386
1387     public void removeShare(OCShare share) {
1388         Uri share_uri = ProviderTableMeta.CONTENT_URI_SHARE;
1389         String where = ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?" + " AND " +
1390                 ProviderTableMeta.FILE_PATH + "=?";
1391         String [] whereArgs = new String[]{mAccount.name, share.getPath()};
1392         if (getContentProviderClient() != null) {
1393             try {
1394                 getContentProviderClient().delete(share_uri, where, whereArgs);
1395             } catch (RemoteException e) {
1396                 e.printStackTrace();
1397             }
1398         } else {
1399             getContentResolver().delete(share_uri, where, whereArgs);
1400         }
1401     }
1402
1403     public void saveSharesDB(ArrayList<OCShare> shares) {
1404         saveShares(shares);
1405
1406         ArrayList<OCFile> sharedFiles = new ArrayList<OCFile>();
1407
1408         for (OCShare share : shares) {
1409             // Get the path
1410             String path = share.getPath();
1411             if (share.isFolder()) {
1412                 path = path + FileUtils.PATH_SEPARATOR;
1413             }
1414
1415             // Update OCFile with data from share: ShareByLink  and publicLink
1416             OCFile file = getFileByPath(path);
1417             if (file != null) {
1418                 if (share.getShareType().equals(ShareType.PUBLIC_LINK)) {
1419                     file.setShareByLink(true);
1420                     sharedFiles.add(file);
1421                 }
1422             }
1423         }
1424
1425         updateSharedFiles(sharedFiles);
1426     }
1427
1428
1429     public void saveSharesInFolder(ArrayList<OCShare> shares, OCFile folder) {
1430         cleanSharedFilesInFolder(folder);
1431         ArrayList<ContentProviderOperation> operations = new ArrayList<ContentProviderOperation>();
1432         operations = prepareRemoveSharesInFolder(folder, operations);
1433
1434         if (shares != null) {
1435             // prepare operations to insert or update files to save in the given folder
1436             for (OCShare share : shares) {
1437                 ContentValues cv = new ContentValues();
1438                 cv.put(ProviderTableMeta.OCSHARES_FILE_SOURCE, share.getFileSource());
1439                 cv.put(ProviderTableMeta.OCSHARES_ITEM_SOURCE, share.getItemSource());
1440                 cv.put(ProviderTableMeta.OCSHARES_SHARE_TYPE, share.getShareType().getValue());
1441                 cv.put(ProviderTableMeta.OCSHARES_SHARE_WITH, share.getShareWith());
1442                 cv.put(ProviderTableMeta.OCSHARES_PATH, share.getPath());
1443                 cv.put(ProviderTableMeta.OCSHARES_PERMISSIONS, share.getPermissions());
1444                 cv.put(ProviderTableMeta.OCSHARES_SHARED_DATE, share.getSharedDate());
1445                 cv.put(ProviderTableMeta.OCSHARES_EXPIRATION_DATE, share.getExpirationDate());
1446                 cv.put(ProviderTableMeta.OCSHARES_TOKEN, share.getToken());
1447                 cv.put(
1448                     ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME,
1449                     share.getSharedWithDisplayName()
1450                 );
1451                 cv.put(ProviderTableMeta.OCSHARES_IS_DIRECTORY, share.isFolder() ? 1 : 0);
1452                 cv.put(ProviderTableMeta.OCSHARES_USER_ID, share.getUserId());
1453                 cv.put(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED, share.getIdRemoteShared());
1454                 cv.put(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER, mAccount.name);
1455
1456                 /*
1457                 if (shareExists(share.getIdRemoteShared())) {
1458                     // updating an existing share resource
1459                     operations.add(
1460                             ContentProviderOperation.newUpdate(ProviderTableMeta.CONTENT_URI_SHARE).
1461                             withValues(cv).
1462                             withSelection(  ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + "=?",
1463                                     new String[] { String.valueOf(share.getIdRemoteShared()) })
1464                                     .build());
1465
1466                 } else {
1467                 */
1468                 // adding a new share resource
1469                 operations.add(
1470                         ContentProviderOperation.newInsert(ProviderTableMeta.CONTENT_URI_SHARE).
1471                         withValues(cv).
1472                         build()
1473                 );
1474                 //}
1475             }
1476         }
1477
1478         // apply operations in batch
1479         if (operations.size() > 0) {
1480             @SuppressWarnings("unused")
1481             ContentProviderResult[] results = null;
1482             Log_OC.d(TAG, "Sending " + operations.size() + " operations to FileContentProvider");
1483             try {
1484                 if (getContentResolver() != null) {
1485                     results = getContentResolver().applyBatch(MainApp.getAuthority(), operations);
1486
1487                 } else {
1488                     results = getContentProviderClient().applyBatch(operations);
1489                 }
1490
1491             } catch (OperationApplicationException e) {
1492                 Log_OC.e(TAG, "Exception in batch of operations " + e.getMessage());
1493
1494             } catch (RemoteException e) {
1495                 Log_OC.e(TAG, "Exception in batch of operations  " + e.getMessage());
1496             }
1497         }
1498         //}
1499
1500     }
1501
1502     private ArrayList<ContentProviderOperation> prepareRemoveSharesInFolder(
1503             OCFile folder, ArrayList<ContentProviderOperation> preparedOperations) {
1504         if (folder != null) {
1505             String where = ProviderTableMeta.OCSHARES_PATH + "=?" + " AND "
1506                     + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?";
1507             String [] whereArgs = new String[]{ "", mAccount.name };
1508
1509             // TODO Enable when "On Device" is recovered ?
1510             Vector<OCFile> files = getFolderContent(folder /*, false*/);
1511
1512             for (OCFile file : files) {
1513                 whereArgs[0] = file.getRemotePath();
1514                 preparedOperations.add(
1515                         ContentProviderOperation.newDelete(ProviderTableMeta.CONTENT_URI_SHARE).
1516                         withSelection(where, whereArgs).
1517                         build()
1518                 );
1519             }
1520         }
1521         return preparedOperations;
1522
1523         /*
1524         if (operations.size() > 0) {
1525             try {
1526                 if (getContentResolver() != null) {
1527                     getContentResolver().applyBatch(MainApp.getAuthority(), operations);
1528
1529                 } else {
1530                     getContentProviderClient().applyBatch(operations);
1531                 }
1532
1533             } catch (OperationApplicationException e) {
1534                 Log_OC.e(TAG, "Exception in batch of operations " + e.getMessage());
1535
1536             } catch (RemoteException e) {
1537                 Log_OC.e(TAG, "Exception in batch of operations  " + e.getMessage());
1538             }
1539         }
1540         */
1541
1542             /*
1543             if (getContentResolver() != null) {
1544
1545                 getContentResolver().delete(ProviderTableMeta.CONTENT_URI_SHARE,
1546                                             where,
1547                                             whereArgs);
1548             } else {
1549                 try {
1550                     getContentProviderClient().delete(  ProviderTableMeta.CONTENT_URI_SHARE,
1551                                                         where,
1552                                                         whereArgs);
1553
1554                 } catch (RemoteException e) {
1555                     Log_OC.e(TAG, "Exception deleting shares in a folder " + e.getMessage());
1556                 }
1557             }
1558             */
1559         //}
1560     }
1561
1562     public void triggerMediaScan(String path) {
1563         Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
1564         intent.setData(Uri.fromFile(new File(path)));
1565         MainApp.getAppContext().sendBroadcast(intent);
1566     }
1567
1568     public void deleteFileInMediaScan(String path) {
1569
1570         String mimetypeString = FileStorageUtils.getMimeTypeFromName(path);
1571         ContentResolver contentResolver = getContentResolver();
1572
1573         if (contentResolver != null) {
1574             if (mimetypeString.startsWith("image/")) {
1575                 // Images
1576                 contentResolver.delete(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
1577                         MediaStore.Images.Media.DATA + "=?", new String[]{path});
1578             } else if (mimetypeString.startsWith("audio/")) {
1579                 // Audio
1580                 contentResolver.delete(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
1581                         MediaStore.Audio.Media.DATA + "=?", new String[]{path});
1582             } else if (mimetypeString.startsWith("video/")) {
1583                 // Video
1584                 contentResolver.delete(MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
1585                         MediaStore.Video.Media.DATA + "=?", new String[]{path});
1586             }
1587         } else {
1588             ContentProviderClient contentProviderClient = getContentProviderClient();
1589             try {
1590                 if (mimetypeString.startsWith("image/")) {
1591                     // Images
1592                     contentProviderClient.delete(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
1593                             MediaStore.Images.Media.DATA + "=?", new String[]{path});
1594                 } else if (mimetypeString.startsWith("audio/")) {
1595                     // Audio
1596                     contentProviderClient.delete(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
1597                             MediaStore.Audio.Media.DATA + "=?", new String[]{path});
1598                 } else if (mimetypeString.startsWith("video/")) {
1599                     // Video
1600                     contentProviderClient.delete(MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
1601                             MediaStore.Video.Media.DATA + "=?", new String[]{path});
1602                 }
1603             } catch (RemoteException e) {
1604                 Log_OC.e(TAG, "Exception deleting media file in MediaStore " + e.getMessage());
1605             }
1606         }
1607
1608     }
1609
1610 }