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