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