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

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.datamodel;
  20
  21 import java.io.File;
  22 import java.util.ArrayList;
  23 import java.util.Collection;
  24 import java.util.Collections;
  25 import java.util.Iterator;
  26 import java.util.Vector;
  27
  28 import com.owncloud.android.MainApp;
  29 import com.owncloud.android.db.ProviderMeta.ProviderTableMeta;
  30 import com.owncloud.android.lib.operations.common.OCShare;
  31 import com.owncloud.android.lib.operations.common.ShareType;
  32 import com.owncloud.android.utils.FileStorageUtils;
  33 import com.owncloud.android.utils.Log_OC;
  34
  35
  36 import android.accounts.Account;
  37 import android.content.ContentProviderClient;
  38 import android.content.ContentProviderOperation;
  39 import android.content.ContentProviderResult;
  40 import android.content.ContentResolver;
  41 import android.content.ContentUris;
  42 import android.content.ContentValues;
  43 import android.content.OperationApplicationException;
  44 import android.database.Cursor;
  45 import android.net.Uri;
  46 import android.os.RemoteException;
  47
  48 public class FileDataStorageManager {
  49
  50     public static final int ROOT_PARENT_ID = 0;
  51
  52     private ContentResolver mContentResolver;
  53     private ContentProviderClient mContentProviderClient;
  54     private Account mAccount;
  55
  56     private static String TAG = FileDataStorageManager.class.getSimpleName();
  57
  58
  59     public FileDataStorageManager(Account account, ContentResolver cr) {
  60         mContentProviderClient = null;
  61         mContentResolver = cr;
  62         mAccount = account;
  63     }
  64
  65     public FileDataStorageManager(Account account, ContentProviderClient cp) {
  66         mContentProviderClient = cp;
  67         mContentResolver = null;
  68         mAccount = account;
  69     }
  70
  71
  72     public void setAccount(Account account) {
  73         mAccount = account;
  74     }
  75
  76     public Account getAccount() {
  77         return mAccount;
  78     }
  79
  80     public void setContentResolver(ContentResolver cr) {
  81         mContentResolver = cr;
  82     }
  83
  84     public ContentResolver getContentResolver() {
  85         return mContentResolver;
  86     }
  87
  88     public void setContentProviderClient(ContentProviderClient cp) {
  89         mContentProviderClient = cp;
  90     }
  91
  92     public ContentProviderClient getContentProviderClient() {
  93         return mContentProviderClient;
  94     }
  95
  96
  97     public OCFile getFileByPath(String path) {
  98         Cursor c = getCursorForValue(ProviderTableMeta.FILE_PATH, path);
  99         OCFile file = null;
 100         if (c.moveToFirst()) {
 101             file = createFileInstance(c);
 102         }
 103         c.close();
 104         if (file == null && OCFile.ROOT_PATH.equals(path)) {
 105             return createRootDir(); // root should always exist
 106         }
 107         return file;
 108     }
 109
 110
 111     public OCFile getFileById(long id) {
 112         Cursor c = getCursorForValue(ProviderTableMeta._ID, String.valueOf(id));
 113         OCFile file = null;
 114         if (c.moveToFirst()) {
 115             file = createFileInstance(c);
 116         }
 117         c.close();
 118         return file;
 119     }
 120
 121     public OCFile getFileByLocalPath(String path) {
 122         Cursor c = getCursorForValue(ProviderTableMeta.FILE_STORAGE_PATH, path);
 123         OCFile file = null;
 124         if (c.moveToFirst()) {
 125             file = createFileInstance(c);
 126         }
 127         c.close();
 128         return file;
 129     }
 130
 131     public boolean fileExists(long id) {
 132         return fileExists(ProviderTableMeta._ID, String.valueOf(id));
 133     }
 134
 135     public boolean fileExists(String path) {
 136         return fileExists(ProviderTableMeta.FILE_PATH, path);
 137     }
 138
 139
 140     public Vector<OCFile> getFolderContent(OCFile f) {
 141         if (f != null && f.isFolder() && f.getFileId() != -1) {
 142             return getFolderContent(f.getFileId());
 143
 144         } else {
 145             return new Vector<OCFile>();
 146         }
 147     }
 148
 149
 150     public Vector<OCFile> getFolderImages(OCFile folder) {
 151         Vector<OCFile> ret = new Vector<OCFile>();
 152         if (folder != null) {
 153             // TODO better implementation, filtering in the access to database (if possible) instead of here
 154             Vector<OCFile> tmp = getFolderContent(folder);
 155             OCFile current = null;
 156             for (int i=0; i<tmp.size(); i++) {
 157                 current = tmp.get(i);
 158                 if (current.isImage()) {
 159                     ret.add(current);
 160                 }
 161             }
 162         }
 163         return ret;
 164     }
 165
 166
 167     public boolean saveFile(OCFile file) {
 168         boolean overriden = false;
 169         ContentValues cv = new ContentValues();
 170         cv.put(ProviderTableMeta.FILE_MODIFIED, file.getModificationTimestamp());
 171         cv.put(ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA, file.getModificationTimestampAtLastSyncForData());
 172         cv.put(ProviderTableMeta.FILE_CREATION, file.getCreationTimestamp());
 173         cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, file.getFileLength());
 174         cv.put(ProviderTableMeta.FILE_CONTENT_TYPE, file.getMimetype());
 175         cv.put(ProviderTableMeta.FILE_NAME, file.getFileName());
 176         //if (file.getParentId() != DataStorageManager.ROOT_PARENT_ID)
 177             cv.put(ProviderTableMeta.FILE_PARENT, file.getParentId());
 178         cv.put(ProviderTableMeta.FILE_PATH, file.getRemotePath());
 179         if (!file.isFolder())
 180             cv.put(ProviderTableMeta.FILE_STORAGE_PATH, file.getStoragePath());
 181         cv.put(ProviderTableMeta.FILE_ACCOUNT_OWNER, mAccount.name);
 182         cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE, file.getLastSyncDateForProperties());
 183         cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA, file.getLastSyncDateForData());
 184         cv.put(ProviderTableMeta.FILE_KEEP_IN_SYNC, file.keepInSync() ? 1 : 0);
 185         cv.put(ProviderTableMeta.FILE_ETAG, file.getEtag());
 186         cv.put(ProviderTableMeta.FILE_SHARE_BY_LINK, file.isShareByLink() ? 1 : 0);
 187         cv.put(ProviderTableMeta.FILE_PUBLIC_LINK, file.getPublicLink());
 188
 189         boolean sameRemotePath = fileExists(file.getRemotePath());
 190         if (sameRemotePath ||
 191                 fileExists(file.getFileId())        ) {           // for renamed files; no more delete and create
 192
 193             OCFile oldFile = null;
 194             if (sameRemotePath) {
 195                 oldFile = getFileByPath(file.getRemotePath());
 196                 file.setFileId(oldFile.getFileId());
 197             } else {
 198                 oldFile = getFileById(file.getFileId());
 199             }
 200
 201             overriden = true;
 202             if (getContentResolver() != null) {
 203                 getContentResolver().update(ProviderTableMeta.CONTENT_URI, cv,
 204                         ProviderTableMeta._ID + "=?",
 205                         new String[] { String.valueOf(file.getFileId()) });
 206             } else {
 207                 try {
 208                     getContentProviderClient().update(ProviderTableMeta.CONTENT_URI,
 209                             cv, ProviderTableMeta._ID + "=?",
 210                             new String[] { String.valueOf(file.getFileId()) });
 211                 } catch (RemoteException e) {
 212                     Log_OC.e(TAG,
 213                             "Fail to insert insert file to database "
 214                                     + e.getMessage());
 215                 }
 216             }
 217         } else {
 218             Uri result_uri = null;
 219             if (getContentResolver() != null) {
 220                 result_uri = getContentResolver().insert(
 221                         ProviderTableMeta.CONTENT_URI_FILE, cv);
 222             } else {
 223                 try {
 224                     result_uri = getContentProviderClient().insert(
 225                             ProviderTableMeta.CONTENT_URI_FILE, cv);
 226                 } catch (RemoteException e) {
 227                     Log_OC.e(TAG,
 228                             "Fail to insert insert file to database "
 229                                     + e.getMessage());
 230                 }
 231             }
 232             if (result_uri != null) {
 233                 long new_id = Long.parseLong(result_uri.getPathSegments()
 234                         .get(1));
 235                 file.setFileId(new_id);
 236             }
 237         }
 238
 239         if (file.isFolder()) {
 240             updateFolderSize(file.getFileId());
 241         } else {
 242             updateFolderSize(file.getParentId());
 243         }
 244
 245         return overriden;
 246     }
 247
 248
 249     /**
 250      * Inserts or updates the list of files contained in a given folder.
 251      *
 252      * CALLER IS THE RESPONSIBLE FOR GRANTING RIGHT UPDATE OF INFORMATION, NOT THIS METHOD.
 253      * HERE ONLY DATA CONSISTENCY SHOULD BE GRANTED
 254      *
 255      * @param folder
 256      * @param files
 257      * @param removeNotUpdated
 258      */
 259     public void saveFolder(OCFile folder, Collection<OCFile> updatedFiles, Collection<OCFile> filesToRemove) {
 260
 261         Log_OC.d(TAG,  "Saving folder " + folder.getRemotePath() + " with " + updatedFiles.size() + " children and " + filesToRemove.size() + " files to remove");
 262
 263         ArrayList<ContentProviderOperation> operations = new ArrayList<ContentProviderOperation>(updatedFiles.size());
 264
 265         // prepare operations to insert or update files to save in the given folder
 266         for (OCFile file : updatedFiles) {
 267             ContentValues cv = new ContentValues();
 268             cv.put(ProviderTableMeta.FILE_MODIFIED, file.getModificationTimestamp());
 269             cv.put(ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA, file.getModificationTimestampAtLastSyncForData());
 270             cv.put(ProviderTableMeta.FILE_CREATION, file.getCreationTimestamp());
 271             cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, file.getFileLength());
 272             cv.put(ProviderTableMeta.FILE_CONTENT_TYPE, file.getMimetype());
 273             cv.put(ProviderTableMeta.FILE_NAME, file.getFileName());
 274             //cv.put(ProviderTableMeta.FILE_PARENT, file.getParentId());
 275             cv.put(ProviderTableMeta.FILE_PARENT, folder.getFileId());
 276             cv.put(ProviderTableMeta.FILE_PATH, file.getRemotePath());
 277             if (!file.isFolder()) {
 278                 cv.put(ProviderTableMeta.FILE_STORAGE_PATH, file.getStoragePath());
 279             }
 280             cv.put(ProviderTableMeta.FILE_ACCOUNT_OWNER, mAccount.name);
 281             cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE, file.getLastSyncDateForProperties());
 282             cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA, file.getLastSyncDateForData());
 283             cv.put(ProviderTableMeta.FILE_KEEP_IN_SYNC, file.keepInSync() ? 1 : 0);
 284             cv.put(ProviderTableMeta.FILE_ETAG, file.getEtag());
 285             cv.put(ProviderTableMeta.FILE_SHARE_BY_LINK, file.isShareByLink() ? 1 : 0);
 286             cv.put(ProviderTableMeta.FILE_PUBLIC_LINK, file.getPublicLink());
 287
 288             boolean existsByPath = fileExists(file.getRemotePath());
 289             if (existsByPath || fileExists(file.getFileId())) {
 290                 // updating an existing file
 291                 operations.add(ContentProviderOperation.newUpdate(ProviderTableMeta.CONTENT_URI).
 292                         withValues(cv).
 293                         withSelection(  ProviderTableMeta._ID + "=?",
 294                                 new String[] { String.valueOf(file.getFileId()) })
 295                                 .build());
 296
 297             } else {
 298                 // adding a new file
 299                 operations.add(ContentProviderOperation.newInsert(ProviderTableMeta.CONTENT_URI).withValues(cv).build());
 300             }
 301         }
 302
 303         // prepare operations to remove files in the given folder
 304         String where = ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?" + " AND " + ProviderTableMeta.FILE_PATH + "=?";
 305         String [] whereArgs = null;
 306         for (OCFile file : filesToRemove) {
 307             if (file.getParentId() == folder.getFileId()) {
 308                 whereArgs = new String[]{mAccount.name, file.getRemotePath()};
 309                 //Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_FILE, "" + file.getFileId());
 310                 if (file.isFolder()) {
 311                     operations.add(ContentProviderOperation
 312                                     .newDelete(ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_DIR, file.getFileId())).withSelection(where, whereArgs)
 313                                         .build());
 314                     // TODO remove local folder
 315                 } else {
 316                     operations.add(ContentProviderOperation
 317                                     .newDelete(ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, file.getFileId())).withSelection(where, whereArgs)
 318                                         .build());
 319                     if (file.isDown()) {
 320                         new File(file.getStoragePath()).delete();
 321                         // TODO move the deletion of local contents after success of deletions
 322                     }
 323                 }
 324             }
 325         }
 326
 327         // update metadata of folder
 328         ContentValues cv = new ContentValues();
 329         cv.put(ProviderTableMeta.FILE_MODIFIED, folder.getModificationTimestamp());
 330         cv.put(ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA, folder.getModificationTimestampAtLastSyncForData());
 331         cv.put(ProviderTableMeta.FILE_CREATION, folder.getCreationTimestamp());
 332         cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, 0);   // FileContentProvider calculates the right size
 333         cv.put(ProviderTableMeta.FILE_CONTENT_TYPE, folder.getMimetype());
 334         cv.put(ProviderTableMeta.FILE_NAME, folder.getFileName());
 335         cv.put(ProviderTableMeta.FILE_PARENT, folder.getParentId());
 336         cv.put(ProviderTableMeta.FILE_PATH, folder.getRemotePath());
 337         cv.put(ProviderTableMeta.FILE_ACCOUNT_OWNER, mAccount.name);
 338         cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE, folder.getLastSyncDateForProperties());
 339         cv.put(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA, folder.getLastSyncDateForData());
 340         cv.put(ProviderTableMeta.FILE_KEEP_IN_SYNC, folder.keepInSync() ? 1 : 0);
 341         cv.put(ProviderTableMeta.FILE_ETAG, folder.getEtag());
 342         cv.put(ProviderTableMeta.FILE_SHARE_BY_LINK, folder.isShareByLink() ? 1 : 0);
 343         cv.put(ProviderTableMeta.FILE_PUBLIC_LINK, folder.getPublicLink());
 344
 345         operations.add(ContentProviderOperation.newUpdate(ProviderTableMeta.CONTENT_URI).
 346                 withValues(cv).
 347                 withSelection(  ProviderTableMeta._ID + "=?",
 348                         new String[] { String.valueOf(folder.getFileId()) })
 349                         .build());
 350
 351         // apply operations in batch
 352         ContentProviderResult[] results = null;
 353         Log_OC.d(TAG, "Sending " + operations.size() + " operations to FileContentProvider");
 354         try {
 355             if (getContentResolver() != null) {
 356                 results = getContentResolver().applyBatch(MainApp.getAuthority(), operations);
 357
 358             } else {
 359                 results = getContentProviderClient().applyBatch(operations);
 360             }
 361
 362         } catch (OperationApplicationException e) {
 363             Log_OC.e(TAG, "Exception in batch of operations " + e.getMessage());
 364
 365         } catch (RemoteException e) {
 366             Log_OC.e(TAG, "Exception in batch of operations  " + e.getMessage());
 367         }
 368
 369         // update new id in file objects for insertions
 370         if (results != null) {
 371             long newId;
 372             Iterator<OCFile> filesIt = updatedFiles.iterator();
 373             OCFile file = null;
 374             for (int i=0; i<results.length; i++) {
 375                 if (filesIt.hasNext()) {
 376                     file = filesIt.next();
 377                 } else {
 378                     file = null;
 379                 }
 380                 if (results[i].uri != null) {
 381                     newId = Long.parseLong(results[i].uri.getPathSegments().get(1));
 382                     //updatedFiles.get(i).setFileId(newId);
 383                     if (file != null) {
 384                         file.setFileId(newId);
 385                     }
 386                 }
 387             }
 388         }
 389
 390         updateFolderSize(folder.getFileId());
 391
 392     }
 393
 394
 395     /**
 396      *
 397      * @param id
 398      */
 399     private void updateFolderSize(long id) {
 400         if (id > FileDataStorageManager.ROOT_PARENT_ID) {
 401             Log_OC.d(TAG, "Updating size of " + id);
 402             if (getContentResolver() != null) {
 403                 getContentResolver().update(ProviderTableMeta.CONTENT_URI_DIR,
 404                         new ContentValues(),    // won't be used, but cannot be null; crashes in KLP
 405                         ProviderTableMeta._ID + "=?",
 406                         new String[] { String.valueOf(id) });
 407             } else {
 408                 try {
 409                     getContentProviderClient().update(ProviderTableMeta.CONTENT_URI_DIR,
 410                             new ContentValues(),    // won't be used, but cannot be null; crashes in KLP
 411                             ProviderTableMeta._ID + "=?",
 412                             new String[] { String.valueOf(id) });
 413
 414                 } catch (RemoteException e) {
 415                     Log_OC.e(TAG, "Exception in update of folder size through compatibility patch " + e.getMessage());
 416                 }
 417             }
 418         } else {
 419             Log_OC.e(TAG,  "not updating size for folder " + id);
 420         }
 421     }
 422
 423
 424     public void removeFile(OCFile file, boolean removeDBData, boolean removeLocalCopy) {
 425         if (file != null) {
 426             if (file.isFolder()) {
 427                 removeFolder(file, removeDBData, removeLocalCopy);
 428
 429             } else {
 430                 if (removeDBData) {
 431                     //Uri file_uri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_FILE, ""+file.getFileId());
 432                     Uri file_uri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, file.getFileId());
 433                     String where = ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?" + " AND " + ProviderTableMeta.FILE_PATH + "=?";
 434                     String [] whereArgs = new String[]{mAccount.name, file.getRemotePath()};
 435                     if (getContentProviderClient() != null) {
 436                         try {
 437                             getContentProviderClient().delete(file_uri, where, whereArgs);
 438                         } catch (RemoteException e) {
 439                             e.printStackTrace();
 440                         }
 441                     } else {
 442                         getContentResolver().delete(file_uri, where, whereArgs);
 443                     }
 444                     updateFolderSize(file.getParentId());
 445                 }
 446                 if (removeLocalCopy && file.isDown() && file.getStoragePath() != null) {
 447                     boolean success = new File(file.getStoragePath()).delete();
 448                     if (!removeDBData && success) {
 449                         // maybe unnecessary, but should be checked TODO remove if unnecessary
 450                         file.setStoragePath(null);
 451                         saveFile(file);
 452                     }
 453                 }
 454             }
 455         }
 456     }
 457
 458
 459     public void removeFolder(OCFile folder, boolean removeDBData, boolean removeLocalContent) {
 460         if (folder != null && folder.isFolder()) {
 461             if (removeDBData &&  folder.getFileId() != -1) {
 462                 removeFolderInDb(folder);
 463             }
 464             if (removeLocalContent) {
 465                 File localFolder = new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, folder));
 466                 removeLocalFolder(localFolder);
 467             }
 468         }
 469     }
 470
 471     private void removeFolderInDb(OCFile folder) {
 472         Uri folder_uri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, ""+ folder.getFileId());   // URI for recursive deletion
 473         String where = ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?" + " AND " + ProviderTableMeta.FILE_PATH + "=?";
 474         String [] whereArgs = new String[]{mAccount.name, folder.getRemotePath()};
 475         if (getContentProviderClient() != null) {
 476             try {
 477                 getContentProviderClient().delete(folder_uri, where, whereArgs);
 478             } catch (RemoteException e) {
 479                 e.printStackTrace();
 480             }
 481         } else {
 482             getContentResolver().delete(folder_uri, where, whereArgs);
 483         }
 484         updateFolderSize(folder.getParentId());
 485     }
 486
 487     private void removeLocalFolder(File folder) {
 488         if (folder.exists()) {
 489             File[] files = folder.listFiles();
 490             if (files != null) {
 491                 for (File file : files) {
 492                     if (file.isDirectory()) {
 493                         removeLocalFolder(file);
 494                     } else {
 495                         file.delete();
 496                     }
 497                 }
 498             }
 499             folder.delete();
 500         }
 501     }
 502
 503     /**
 504      * Updates database for a folder that was moved to a different location.
 505      *
 506      * TODO explore better (faster) implementations
 507      * TODO throw exceptions up !
 508      */
 509     public void moveFolder(OCFile folder, String newPath) {
 510         // TODO check newPath
 511
 512         if (folder != null && folder.isFolder() && folder.fileExists() && !OCFile.ROOT_PATH.equals(folder.getFileName())) {
 513             /// 1. get all the descendants of 'dir' in a single QUERY (including 'dir')
 514             Cursor c = null;
 515             if (getContentProviderClient() != null) {
 516                 try {
 517                     c = getContentProviderClient().query(ProviderTableMeta.CONTENT_URI,
 518                             null,
 519                             ProviderTableMeta.FILE_ACCOUNT_OWNER + "=? AND " + ProviderTableMeta.FILE_PATH + " LIKE ? ",
 520                             new String[] { mAccount.name, folder.getRemotePath() + "%"  }, ProviderTableMeta.FILE_PATH + " ASC ");
 521                 } catch (RemoteException e) {
 522                     Log_OC.e(TAG, e.getMessage());
 523                 }
 524             } else {
 525                 c = getContentResolver().query(ProviderTableMeta.CONTENT_URI,
 526                         null,
 527                         ProviderTableMeta.FILE_ACCOUNT_OWNER + "=? AND " + ProviderTableMeta.FILE_PATH + " LIKE ? ",
 528                         new String[] { mAccount.name, folder.getRemotePath() + "%"  }, ProviderTableMeta.FILE_PATH + " ASC ");
 529             }
 530
 531             /// 2. prepare a batch of update operations to change all the descendants
 532             ArrayList<ContentProviderOperation> operations = new ArrayList<ContentProviderOperation>(c.getCount());
 533             int lengthOfOldPath = folder.getRemotePath().length();
 534             String defaultSavePath = FileStorageUtils.getSavePath(mAccount.name);
 535             int lengthOfOldStoragePath = defaultSavePath.length() + lengthOfOldPath;
 536             if (c.moveToFirst()) {
 537                 do {
 538                     ContentValues cv = new ContentValues(); // don't take the constructor out of the loop and clear the object
 539                     OCFile child = createFileInstance(c);
 540                     cv.put(ProviderTableMeta.FILE_PATH, newPath + child.getRemotePath().substring(lengthOfOldPath));
 541                     if (child.getStoragePath() != null && child.getStoragePath().startsWith(defaultSavePath)) {
 542                         cv.put(ProviderTableMeta.FILE_STORAGE_PATH, defaultSavePath + newPath + child.getStoragePath().substring(lengthOfOldStoragePath));
 543                     }
 544                     operations.add(ContentProviderOperation.newUpdate(ProviderTableMeta.CONTENT_URI).
 545                             withValues(cv).
 546                             withSelection(  ProviderTableMeta._ID + "=?",
 547                                     new String[] { String.valueOf(child.getFileId()) })
 548                                     .build());
 549                 } while (c.moveToNext());
 550             }
 551             c.close();
 552
 553             /// 3. apply updates in batch
 554             try {
 555                 if (getContentResolver() != null) {
 556                     getContentResolver().applyBatch(MainApp.getAuthority(), operations);
 557
 558                 } else {
 559                     getContentProviderClient().applyBatch(operations);
 560                 }
 561
 562             } catch (OperationApplicationException e) {
 563                 Log_OC.e(TAG, "Fail to update descendants of " + folder.getFileId() + " in database", e);
 564
 565             } catch (RemoteException e) {
 566                 Log_OC.e(TAG, "Fail to update desendants of " + folder.getFileId() + " in database", e);
 567             }
 568
 569         }
 570     }
 571
 572
 573     private Vector<OCFile> getFolderContent(long parentId) {
 574
 575         Vector<OCFile> ret = new Vector<OCFile>();
 576
 577         Uri req_uri = Uri.withAppendedPath(
 578                 ProviderTableMeta.CONTENT_URI_DIR,
 579                 String.valueOf(parentId));
 580         Cursor c = null;
 581
 582         if (getContentProviderClient() != null) {
 583             try {
 584                 c = getContentProviderClient().query(req_uri, null,
 585                         ProviderTableMeta.FILE_PARENT + "=?" ,
 586                         new String[] { String.valueOf(parentId)}, null);
 587             } catch (RemoteException e) {
 588                 Log_OC.e(TAG, e.getMessage());
 589                 return ret;
 590             }
 591         } else {
 592             c = getContentResolver().query(req_uri, null,
 593                     ProviderTableMeta.FILE_PARENT + "=?" ,
 594                     new String[] { String.valueOf(parentId)}, null);
 595         }
 596
 597         if (c.moveToFirst()) {
 598             do {
 599                 OCFile child = createFileInstance(c);
 600                 ret.add(child);
 601             } while (c.moveToNext());
 602         }
 603
 604         c.close();
 605
 606         Collections.sort(ret);
 607
 608         return ret;
 609     }
 610
 611
 612     private OCFile createRootDir() {
 613         OCFile file = new OCFile(OCFile.ROOT_PATH);
 614         file.setMimetype("DIR");
 615         file.setParentId(FileDataStorageManager.ROOT_PARENT_ID);
 616         saveFile(file);
 617         return file;
 618     }
 619
 620     private boolean fileExists(String cmp_key, String value) {
 621         Cursor c;
 622         if (getContentResolver() != null) {
 623             c = getContentResolver()
 624                     .query(ProviderTableMeta.CONTENT_URI,
 625                             null,
 626                             cmp_key + "=? AND "
 627                                     + ProviderTableMeta.FILE_ACCOUNT_OWNER
 628                                     + "=?",
 629                                     new String[] { value, mAccount.name }, null);
 630         } else {
 631             try {
 632                 c = getContentProviderClient().query(
 633                         ProviderTableMeta.CONTENT_URI,
 634                         null,
 635                         cmp_key + "=? AND "
 636                                 + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?",
 637                                 new String[] { value, mAccount.name }, null);
 638             } catch (RemoteException e) {
 639                 Log_OC.e(TAG,
 640                         "Couldn't determine file existance, assuming non existance: "
 641                                 + e.getMessage());
 642                 return false;
 643             }
 644         }
 645         boolean retval = c.moveToFirst();
 646         c.close();
 647         return retval;
 648     }
 649
 650     private Cursor getCursorForValue(String key, String value) {
 651         Cursor c = null;
 652         if (getContentResolver() != null) {
 653             c = getContentResolver()
 654                     .query(ProviderTableMeta.CONTENT_URI,
 655                             null,
 656                             key + "=? AND "
 657                                     + ProviderTableMeta.FILE_ACCOUNT_OWNER
 658                                     + "=?",
 659                                     new String[] { value, mAccount.name }, null);
 660         } else {
 661             try {
 662                 c = getContentProviderClient().query(
 663                         ProviderTableMeta.CONTENT_URI,
 664                         null,
 665                         key + "=? AND " + ProviderTableMeta.FILE_ACCOUNT_OWNER
 666                         + "=?", new String[] { value, mAccount.name },
 667                         null);
 668             } catch (RemoteException e) {
 669                 Log_OC.e(TAG, "Could not get file details: " + e.getMessage());
 670                 c = null;
 671             }
 672         }
 673         return c;
 674     }
 675
 676     private Cursor getShareCursorForValue(String key, String value) {
 677         Cursor c = null;
 678         if (getContentResolver() != null) {
 679             c = getContentResolver()
 680                     .query(ProviderTableMeta.CONTENT_URI_SHARE,
 681                             null,
 682                             key + "=? AND "
 683                                     + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER
 684                                     + "=?",
 685                                     new String[] { value, mAccount.name }, null);
 686         } else {
 687             try {
 688                 c = getContentProviderClient().query(
 689                         ProviderTableMeta.CONTENT_URI_SHARE,
 690                         null,
 691                         key + "=? AND " + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER
 692                         + "=?", new String[] { value, mAccount.name },
 693                         null);
 694             } catch (RemoteException e) {
 695                 Log_OC.e(TAG, "Could not get file details: " + e.getMessage());
 696                 c = null;
 697             }
 698         }
 699         return c;
 700     }
 701
 702     private OCFile createFileInstance(Cursor c) {
 703         OCFile file = null;
 704         if (c != null) {
 705             file = new OCFile(c.getString(c
 706                     .getColumnIndex(ProviderTableMeta.FILE_PATH)));
 707             file.setFileId(c.getLong(c.getColumnIndex(ProviderTableMeta._ID)));
 708             file.setParentId(c.getLong(c
 709                     .getColumnIndex(ProviderTableMeta.FILE_PARENT)));
 710             file.setMimetype(c.getString(c
 711                     .getColumnIndex(ProviderTableMeta.FILE_CONTENT_TYPE)));
 712             if (!file.isFolder()) {
 713                 file.setStoragePath(c.getString(c
 714                         .getColumnIndex(ProviderTableMeta.FILE_STORAGE_PATH)));
 715                 if (file.getStoragePath() == null) {
 716                     // try to find existing file and bind it with current account; - with the current update of SynchronizeFolderOperation, this won't be necessary anymore after a full synchronization of the account
 717                     File f = new File(FileStorageUtils.getDefaultSavePathFor(mAccount.name, file));
 718                     if (f.exists()) {
 719                         file.setStoragePath(f.getAbsolutePath());
 720                         file.setLastSyncDateForData(f.lastModified());
 721                     }
 722                 }
 723             }
 724             file.setFileLength(c.getLong(c
 725                     .getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH)));
 726             file.setCreationTimestamp(c.getLong(c
 727                     .getColumnIndex(ProviderTableMeta.FILE_CREATION)));
 728             file.setModificationTimestamp(c.getLong(c
 729                     .getColumnIndex(ProviderTableMeta.FILE_MODIFIED)));
 730             file.setModificationTimestampAtLastSyncForData(c.getLong(c
 731                     .getColumnIndex(ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA)));
 732             file.setLastSyncDateForProperties(c.getLong(c
 733                     .getColumnIndex(ProviderTableMeta.FILE_LAST_SYNC_DATE)));
 734             file.setLastSyncDateForData(c.getLong(c.
 735                     getColumnIndex(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA)));
 736             file.setKeepInSync(c.getInt(
 737                     c.getColumnIndex(ProviderTableMeta.FILE_KEEP_IN_SYNC)) == 1 ? true : false);
 738             file.setEtag(c.getString(c.getColumnIndex(ProviderTableMeta.FILE_ETAG)));
 739             file.setShareByLink(c.getInt(
 740                     c.getColumnIndex(ProviderTableMeta.FILE_SHARE_BY_LINK)) == 1 ? true : false);
 741             file.setPublicLink(c.getString(c.getColumnIndex(ProviderTableMeta.FILE_PUBLIC_LINK)));
 742
 743         }
 744         return file;
 745     }
 746
 747     /**
 748      * Returns if the file/folder is shared by link or not
 749      * @param path  Path of the file/folder
 750      * @return
 751      */
 752     public boolean isShareByLink(String path) {
 753         Cursor c = getCursorForValue(ProviderTableMeta.FILE_STORAGE_PATH, path);
 754         OCFile file = null;
 755         if (c.moveToFirst()) {
 756             file = createFileInstance(c);
 757         }
 758         c.close();
 759         return file.isShareByLink();
 760     }
 761
 762     /**
 763      * Returns the public link of the file/folder
 764      * @param path  Path of the file/folder
 765      * @return
 766      */
 767     public String getPublicLink(String path) {
 768         Cursor c = getCursorForValue(ProviderTableMeta.FILE_STORAGE_PATH, path);
 769         OCFile file = null;
 770         if (c.moveToFirst()) {
 771             file = createFileInstance(c);
 772         }
 773         c.close();
 774         return file.getPublicLink();
 775     }
 776
 777
 778     // Methods for Shares
 779     public boolean saveShare(OCShare share) {
 780         boolean overriden = false;
 781         ContentValues cv = new ContentValues();
 782         cv.put(ProviderTableMeta.OCSHARES_FILE_SOURCE, share.getFileSource());
 783         cv.put(ProviderTableMeta.OCSHARES_ITEM_SOURCE, share.getItemSource());
 784         cv.put(ProviderTableMeta.OCSHARES_SHARE_TYPE, share.getShareType().getValue());
 785         cv.put(ProviderTableMeta.OCSHARES_SHARE_WITH, share.getShareWith());
 786         cv.put(ProviderTableMeta.OCSHARES_PATH, share.getPath());
 787         cv.put(ProviderTableMeta.OCSHARES_PERMISSIONS, share.getPermissions());
 788         cv.put(ProviderTableMeta.OCSHARES_SHARED_DATE, share.getSharedDate());
 789         cv.put(ProviderTableMeta.OCSHARES_EXPIRATION_DATE, share.getExpirationDate());
 790         cv.put(ProviderTableMeta.OCSHARES_TOKEN, share.getToken());
 791         cv.put(ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME, share.getSharedWithDisplayName());
 792         cv.put(ProviderTableMeta.OCSHARES_IS_DIRECTORY, share.isDirectory() ? 1 : 0);
 793         cv.put(ProviderTableMeta.OCSHARES_USER_ID, share.getUserId());
 794         cv.put(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED, share.getIdRemoteShared());
 795         cv.put(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER, mAccount.name);
 796
 797         boolean samePath = shareExists(share.getPath());
 798         if (samePath ||
 799                 shareExists(share.getId())) {           // for renamed files; no more delete and create
 800
 801             OCShare oldFile = null;
 802             if (samePath) {
 803                 oldFile = getShareByPath(share.getPath());
 804                 share.setId(oldFile.getId());
 805             } else {
 806                 oldFile = getShareById(share.getId());
 807             }
 808
 809             overriden = true;
 810             if (getContentResolver() != null) {
 811                 getContentResolver().update(ProviderTableMeta.CONTENT_URI_SHARE, cv,
 812                         ProviderTableMeta._ID + "=?",
 813                         new String[] { String.valueOf(share.getId()) });
 814             } else {
 815                 try {
 816                     getContentProviderClient().update(ProviderTableMeta.CONTENT_URI_SHARE,
 817                             cv, ProviderTableMeta._ID + "=?",
 818                             new String[] { String.valueOf(share.getId()) });
 819                 } catch (RemoteException e) {
 820                     Log_OC.e(TAG,
 821                             "Fail to insert insert file to database "
 822                                     + e.getMessage());
 823                 }
 824             }
 825         } else {
 826             Uri result_uri = null;
 827             if (getContentResolver() != null) {
 828                 result_uri = getContentResolver().insert(
 829                         ProviderTableMeta.CONTENT_URI_SHARE, cv);
 830             } else {
 831                 try {
 832                     result_uri = getContentProviderClient().insert(
 833                             ProviderTableMeta.CONTENT_URI_SHARE, cv);
 834                 } catch (RemoteException e) {
 835                     Log_OC.e(TAG,
 836                             "Fail to insert insert file to database "
 837                                     + e.getMessage());
 838                 }
 839             }
 840             if (result_uri != null) {
 841                 long new_id = Long.parseLong(result_uri.getPathSegments()
 842                         .get(1));
 843                 share.setId(new_id);
 844             }
 845         }
 846
 847         return overriden;
 848     }
 849
 850     private OCShare getShareById(long id) {
 851         Cursor c = getShareCursorForValue(ProviderTableMeta._ID, String.valueOf(id));
 852         OCShare share = null;
 853         if (c.moveToFirst()) {
 854             share = createShareInstance(c);
 855         }
 856         c.close();
 857         return share;
 858     }
 859
 860     public OCShare getShareByPath(String path) {
 861         Cursor c = getShareCursorForValue(ProviderTableMeta.OCSHARES_PATH, path);
 862         OCShare share = null;
 863         if (c.moveToFirst()) {
 864             share = createShareInstance(c);
 865         }
 866         c.close();
 867         return share;
 868     }
 869
 870     private OCShare createShareInstance(Cursor c) {
 871         OCShare share = null;
 872         if (c != null) {
 873             share = new OCShare(c.getString(c
 874                     .getColumnIndex(ProviderTableMeta.OCSHARES_PATH)));
 875             share.setId(c.getLong(c.getColumnIndex(ProviderTableMeta._ID)));
 876             share.setFileSource(c.getLong(c
 877                     .getColumnIndex(ProviderTableMeta.OCSHARES_ITEM_SOURCE)));
 878             share.setShareType(ShareType.fromValue(c.getInt(c
 879                     .getColumnIndex(ProviderTableMeta.OCSHARES_SHARE_TYPE))));
 880             share.setPermissions(c.getInt(c
 881                     .getColumnIndex(ProviderTableMeta.OCSHARES_PERMISSIONS)));
 882             share.setSharedDate(c.getLong(c
 883                     .getColumnIndex(ProviderTableMeta.OCSHARES_SHARED_DATE)));
 884             share.setExpirationDate(c.getLong(c
 885                     .getColumnIndex(ProviderTableMeta.OCSHARES_EXPIRATION_DATE)));
 886             share.setToken(c.getString(c
 887                     .getColumnIndex(ProviderTableMeta.OCSHARES_TOKEN)));
 888             share.setSharedWithDisplayName(c.getString(c
 889                     .getColumnIndex(ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME)));
 890             share.setIsDirectory(c.getInt(
 891                     c.getColumnIndex(ProviderTableMeta.OCSHARES_IS_DIRECTORY)) == 1 ? true : false);
 892             share.setUserId(c.getLong(c.getColumnIndex(ProviderTableMeta.OCSHARES_USER_ID)));
 893             share.setIdRemoteShared(c.getLong(c.getColumnIndex(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED)));
 894
 895         }
 896         return share;
 897     }
 898
 899     private boolean shareExists(String cmp_key, String value) {
 900         Cursor c;
 901         if (getContentResolver() != null) {
 902             c = getContentResolver()
 903                     .query(ProviderTableMeta.CONTENT_URI_SHARE,
 904                             null,
 905                             cmp_key + "=? AND "
 906                                     + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER
 907                                     + "=?",
 908                                     new String[] { value, mAccount.name }, null);
 909         } else {
 910             try {
 911                 c = getContentProviderClient().query(
 912                         ProviderTableMeta.CONTENT_URI_SHARE,
 913                         null,
 914                         cmp_key + "=? AND "
 915                                 + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?",
 916                                 new String[] { value, mAccount.name }, null);
 917             } catch (RemoteException e) {
 918                 Log_OC.e(TAG,
 919                         "Couldn't determine file existance, assuming non existance: "
 920                                 + e.getMessage());
 921                 return false;
 922             }
 923         }
 924         boolean retval = c.moveToFirst();
 925         c.close();
 926         return retval;
 927     }
 928
 929     public boolean shareExists(long id) {
 930         return shareExists(ProviderTableMeta._ID, String.valueOf(id));
 931     }
 932
 933     public boolean shareExists(String path) {
 934         return shareExists(ProviderTableMeta.OCSHARES_PATH, path);
 935     }
 936
 937     public void cleanShare() {
 938         ContentValues cv = new ContentValues();
 939         cv.put(ProviderTableMeta.FILE_SHARE_BY_LINK, false);
 940         cv.put(ProviderTableMeta.FILE_PUBLIC_LINK, "");
 941         String where = ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
 942         String [] whereArgs = new String[]{mAccount.name};
 943
 944         if (getContentResolver() != null) {
 945             getContentResolver().update(ProviderTableMeta.CONTENT_URI, cv, where, whereArgs);
 946
 947         } else {
 948             try {
 949                 getContentProviderClient().update(ProviderTableMeta.CONTENT_URI, cv, where, whereArgs);
 950
 951             } catch (RemoteException e) {
 952                 Log_OC.e(TAG, "Exception in cleanShareFile" + e.getMessage());
 953             }
 954         }
 955     }
 956 }