src/com/owncloud/android/providers/FileContentProvider.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  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.providers;
  20
  21 import java.util.ArrayList;
  22 import java.util.HashMap;
  23
  24 import com.owncloud.android.R;
  25 import com.owncloud.android.db.ProviderMeta;
  26 import com.owncloud.android.db.ProviderMeta.ProviderTableMeta;
  27 import com.owncloud.android.lib.resources.shares.ShareType;
  28 import com.owncloud.android.utils.Log_OC;
  29
  30
  31
  32 import android.content.ContentProvider;
  33 import android.content.ContentProviderOperation;
  34 import android.content.ContentProviderResult;
  35 import android.content.ContentUris;
  36 import android.content.ContentValues;
  37 import android.content.Context;
  38 import android.content.OperationApplicationException;
  39 import android.content.UriMatcher;
  40 import android.database.Cursor;
  41 import android.database.SQLException;
  42 import android.database.sqlite.SQLiteDatabase;
  43 import android.database.sqlite.SQLiteOpenHelper;
  44 import android.database.sqlite.SQLiteQueryBuilder;
  45 import android.net.Uri;
  46 import android.text.TextUtils;
  47
  48 /**
  49  * The ContentProvider for the ownCloud App.
  50  *
  51  * @author Bartek Przybylski
  52  * @author David A. Velasco
  53  *
  54  */
  55 public class FileContentProvider extends ContentProvider {
  56
  57     private DataBaseHelper mDbHelper;
  58
  59     // Projection for filelist table
  60     private static HashMap<String, String> mFileProjectionMap;
  61     static {
  62         mFileProjectionMap = new HashMap<String, String>();
  63         mFileProjectionMap.put(ProviderTableMeta._ID, ProviderTableMeta._ID);
  64         mFileProjectionMap.put(ProviderTableMeta.FILE_PARENT,
  65                 ProviderTableMeta.FILE_PARENT);
  66         mFileProjectionMap.put(ProviderTableMeta.FILE_PATH,
  67                 ProviderTableMeta.FILE_PATH);
  68         mFileProjectionMap.put(ProviderTableMeta.FILE_NAME,
  69                 ProviderTableMeta.FILE_NAME);
  70         mFileProjectionMap.put(ProviderTableMeta.FILE_CREATION,
  71                 ProviderTableMeta.FILE_CREATION);
  72         mFileProjectionMap.put(ProviderTableMeta.FILE_MODIFIED,
  73                 ProviderTableMeta.FILE_MODIFIED);
  74         mFileProjectionMap.put(ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA,
  75                 ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA);
  76         mFileProjectionMap.put(ProviderTableMeta.FILE_CONTENT_LENGTH,
  77                 ProviderTableMeta.FILE_CONTENT_LENGTH);
  78         mFileProjectionMap.put(ProviderTableMeta.FILE_CONTENT_TYPE,
  79                 ProviderTableMeta.FILE_CONTENT_TYPE);
  80         mFileProjectionMap.put(ProviderTableMeta.FILE_STORAGE_PATH,
  81                 ProviderTableMeta.FILE_STORAGE_PATH);
  82         mFileProjectionMap.put(ProviderTableMeta.FILE_LAST_SYNC_DATE,
  83                 ProviderTableMeta.FILE_LAST_SYNC_DATE);
  84         mFileProjectionMap.put(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA,
  85                 ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA);
  86         mFileProjectionMap.put(ProviderTableMeta.FILE_KEEP_IN_SYNC,
  87                 ProviderTableMeta.FILE_KEEP_IN_SYNC);
  88         mFileProjectionMap.put(ProviderTableMeta.FILE_ACCOUNT_OWNER,
  89                 ProviderTableMeta.FILE_ACCOUNT_OWNER);
  90         mFileProjectionMap.put(ProviderTableMeta.FILE_ETAG,
  91                 ProviderTableMeta.FILE_ETAG);
  92         mFileProjectionMap.put(ProviderTableMeta.FILE_SHARE_BY_LINK,
  93                 ProviderTableMeta.FILE_SHARE_BY_LINK);
  94         mFileProjectionMap.put(ProviderTableMeta.FILE_PUBLIC_LINK,
  95                 ProviderTableMeta.FILE_PUBLIC_LINK);
  96     }
  97
  98     private static final int SINGLE_FILE = 1;
  99     private static final int DIRECTORY = 2;
 100     private static final int ROOT_DIRECTORY = 3;
 101     private static final int SHARES = 4;
 102
 103     private static final String TAG = FileContentProvider.class.getSimpleName();
 104
 105     // Projection for ocshares table
 106     private static HashMap<String, String> mOCSharesProjectionMap;
 107     static {
 108         mOCSharesProjectionMap = new HashMap<String, String>();
 109         mOCSharesProjectionMap.put(ProviderTableMeta._ID, ProviderTableMeta._ID);
 110         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_FILE_SOURCE,
 111                 ProviderTableMeta.OCSHARES_FILE_SOURCE);
 112         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ITEM_SOURCE,
 113                 ProviderTableMeta.OCSHARES_ITEM_SOURCE);
 114         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_TYPE,
 115                 ProviderTableMeta.OCSHARES_SHARE_TYPE);
 116         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_WITH,
 117                 ProviderTableMeta.OCSHARES_SHARE_WITH);
 118         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_PATH,
 119                 ProviderTableMeta.OCSHARES_PATH);
 120         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_PERMISSIONS,
 121                 ProviderTableMeta.OCSHARES_PERMISSIONS);
 122         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARED_DATE,
 123                 ProviderTableMeta.OCSHARES_SHARED_DATE);
 124         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_EXPIRATION_DATE,
 125                 ProviderTableMeta.OCSHARES_EXPIRATION_DATE);
 126         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_TOKEN,
 127                 ProviderTableMeta.OCSHARES_TOKEN);
 128         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME,
 129                 ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME);
 130         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_IS_DIRECTORY,
 131                 ProviderTableMeta.OCSHARES_IS_DIRECTORY);
 132         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_USER_ID,
 133                 ProviderTableMeta.OCSHARES_USER_ID);
 134         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED,
 135                 ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED);
 136         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER,
 137                 ProviderTableMeta.OCSHARES_ACCOUNT_OWNER);
 138     }
 139
 140     private UriMatcher mUriMatcher;
 141
 142     @Override
 143     public int delete(Uri uri, String where, String[] whereArgs) {
 144         //Log_OC.d(TAG, "Deleting " + uri + " at provider " + this);
 145         int count = 0;
 146         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 147         db.beginTransaction();
 148         try {
 149             count = delete(db, uri, where, whereArgs);
 150             db.setTransactionSuccessful();
 151         } finally {
 152             db.endTransaction();
 153         }
 154         getContext().getContentResolver().notifyChange(uri, null);
 155         return count;
 156     }
 157
 158     private int delete(SQLiteDatabase db, Uri uri, String where, String[] whereArgs) {
 159         int count = 0;
 160         switch (mUriMatcher.match(uri)) {
 161         case SINGLE_FILE:
 162             /*Cursor c = query(db, uri, null, where, whereArgs, null);
 163             String remotePath = "(unexisting)";
 164             if (c != null && c.moveToFirst()) {
 165                 remotePath = c.getString(c.getColumnIndex(ProviderTableMeta.FILE_PATH));
 166             }
 167             Log_OC.d(TAG, "Removing FILE " + remotePath);
 168             */
 169             count = db.delete(ProviderTableMeta.FILE_TABLE_NAME,
 170                     ProviderTableMeta._ID
 171                             + "="
 172                             + uri.getPathSegments().get(1)
 173                             + (!TextUtils.isEmpty(where) ? " AND (" + where
 174                                     + ")" : ""), whereArgs);
 175             /* just for log
 176             if (c!=null) {
 177                 c.close();
 178             }
 179             */
 180             break;
 181         case DIRECTORY:
 182             // deletion of folder is recursive
 183             /*
 184             Uri folderUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, Long.parseLong(uri.getPathSegments().get(1)));
 185             Cursor folder = query(db, folderUri, null, null, null, null);
 186             String folderName = "(unknown)";
 187             if (folder != null && folder.moveToFirst()) {
 188                 folderName = folder.getString(folder.getColumnIndex(ProviderTableMeta.FILE_PATH));
 189             }
 190             */
 191             Cursor children = query(uri, null, null, null, null);
 192             if (children != null && children.moveToFirst())  {
 193                 long childId;
 194                 boolean isDir;
 195                 //String remotePath;
 196                 while (!children.isAfterLast()) {
 197                     childId = children.getLong(children.getColumnIndex(ProviderTableMeta._ID));
 198                     isDir = "DIR".equals(children.getString(children.getColumnIndex(ProviderTableMeta.FILE_CONTENT_TYPE)));
 199                     //remotePath = children.getString(children.getColumnIndex(ProviderTableMeta.FILE_PATH));
 200                     if (isDir) {
 201                         count += delete(db, ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_DIR, childId), null, null);
 202                     } else {
 203                         count += delete(db, ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, childId), null, null);
 204                     }
 205                     children.moveToNext();
 206                 }
 207                 children.close();
 208             } /*else {
 209                 Log_OC.d(TAG, "No child to remove in DIRECTORY " + folderName);
 210             }
 211             Log_OC.d(TAG, "Removing DIRECTORY " + folderName + " (or maybe not) ");
 212             */
 213             count += db.delete(ProviderTableMeta.FILE_TABLE_NAME,
 214                     ProviderTableMeta._ID
 215                     + "="
 216                     + uri.getPathSegments().get(1)
 217                     + (!TextUtils.isEmpty(where) ? " AND (" + where
 218                             + ")" : ""), whereArgs);
 219             /* Just for log
 220              if (folder != null) {
 221                 folder.close();
 222             }*/
 223             break;
 224         case ROOT_DIRECTORY:
 225             //Log_OC.d(TAG, "Removing ROOT!");
 226             count = db.delete(ProviderTableMeta.FILE_TABLE_NAME, where, whereArgs);
 227             break;
 228         case SHARES:
 229             count = db.delete(ProviderTableMeta.OCSHARES_TABLE_NAME, where, whereArgs);
 230             break;
 231         default:
 232             //Log_OC.e(TAG, "Unknown uri " + uri);
 233             throw new IllegalArgumentException("Unknown uri: " + uri.toString());
 234         }
 235         return count;
 236     }
 237
 238
 239     @Override
 240     public String getType(Uri uri) {
 241         switch (mUriMatcher.match(uri)) {
 242         case ROOT_DIRECTORY:
 243             return ProviderTableMeta.CONTENT_TYPE;
 244         case SINGLE_FILE:
 245             return ProviderTableMeta.CONTENT_TYPE_ITEM;
 246         default:
 247             throw new IllegalArgumentException("Unknown Uri id."
 248                     + uri.toString());
 249         }
 250     }
 251
 252     @Override
 253     public Uri insert(Uri uri, ContentValues values) {
 254         //Log_OC.d(TAG, "Inserting " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 255         Uri newUri = null;
 256         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 257         db.beginTransaction();
 258         try {
 259             newUri = insert(db, uri, values);
 260             db.setTransactionSuccessful();
 261         } finally {
 262             db.endTransaction();
 263         }
 264         getContext().getContentResolver().notifyChange(newUri, null);
 265         return newUri;
 266     }
 267
 268     private Uri insert(SQLiteDatabase db, Uri uri, ContentValues values) {
 269         switch (mUriMatcher.match(uri)){
 270         case ROOT_DIRECTORY:
 271         case SINGLE_FILE:
 272             String remotePath = values.getAsString(ProviderTableMeta.FILE_PATH);
 273             String accountName = values.getAsString(ProviderTableMeta.FILE_ACCOUNT_OWNER);
 274             String[] projection = new String[] {ProviderTableMeta._ID, ProviderTableMeta.FILE_PATH, ProviderTableMeta.FILE_ACCOUNT_OWNER };
 275             String where = ProviderTableMeta.FILE_PATH + "=? AND " + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
 276             String[] whereArgs = new String[] {remotePath, accountName};
 277             Cursor doubleCheck = query(db, uri, projection, where, whereArgs, null);
 278             if (doubleCheck == null || !doubleCheck.moveToFirst()) {    // ugly patch; serious refactorization is needed to reduce work in FileDataStorageManager and bring it to FileContentProvider
 279                 long rowId = db.insert(ProviderTableMeta.FILE_TABLE_NAME, null, values);
 280                 if (rowId > 0) {
 281                     Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, rowId);
 282                     //Log_OC.d(TAG, "Inserted " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 283                     return insertedFileUri;
 284                 } else {
 285                     //Log_OC.d(TAG, "Error while inserting " + values.getAsString(ProviderTableMeta.FILE_PATH)  + " at provider " + this);
 286                     throw new SQLException("ERROR " + uri);
 287                 }
 288             } else {
 289                 // file is already inserted; race condition, let's avoid a duplicated entry
 290                 Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, doubleCheck.getLong(doubleCheck.getColumnIndex(ProviderTableMeta._ID)));
 291                 doubleCheck.close();
 292
 293                 return insertedFileUri;
 294             }
 295
 296         case SHARES:
 297             String path = values.getAsString(ProviderTableMeta.OCSHARES_PATH);
 298             String accountNameShare= values.getAsString(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER);
 299             String[] projectionShare = new String[] {ProviderTableMeta._ID, ProviderTableMeta.OCSHARES_PATH, ProviderTableMeta.OCSHARES_ACCOUNT_OWNER };
 300             String whereShare = ProviderTableMeta.OCSHARES_PATH + "=? AND " + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?";
 301             String[] whereArgsShare = new String[] {path, accountNameShare};
 302             Uri insertedShareUri = null;
 303             Cursor doubleCheckShare = query(db, uri, projectionShare, whereShare, whereArgsShare, null);
 304             if (doubleCheckShare == null || !doubleCheckShare.moveToFirst()) {    // ugly patch; serious refactorization is needed to reduce work in FileDataStorageManager and bring it to FileContentProvider
 305                 long rowId = db.insert(ProviderTableMeta.OCSHARES_TABLE_NAME, null, values);
 306                 if (rowId >0) {
 307                     insertedShareUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_SHARE, rowId);
 308                 } else {
 309                     throw new SQLException("ERROR " + uri);
 310
 311                 }
 312             } else {
 313                 // file is already inserted; race condition, let's avoid a duplicated entry
 314                 insertedShareUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_SHARE, doubleCheckShare.getLong(doubleCheckShare.getColumnIndex(ProviderTableMeta._ID)));
 315                 doubleCheckShare.close();
 316             }
 317             updateFilesTableAccordingToShareInsertion(db, uri, values);
 318             return insertedShareUri;
 319
 320
 321         default:
 322             throw new IllegalArgumentException("Unknown uri id: " + uri);
 323         }
 324
 325     }
 326
 327     private void updateFilesTableAccordingToShareInsertion(SQLiteDatabase db, Uri uri, ContentValues shareValues) {
 328         ContentValues fileValues = new ContentValues();
 329         fileValues.put(ProviderTableMeta.FILE_SHARE_BY_LINK,
 330                             ShareType.PUBLIC_LINK.getValue() == shareValues.getAsInteger(ProviderTableMeta.OCSHARES_SHARE_TYPE)? 1 : 0);
 331         String whereShare = ProviderTableMeta.FILE_PATH + "=? AND " + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
 332         String[] whereArgsShare = new String[] {
 333                 shareValues.getAsString(ProviderTableMeta.OCSHARES_PATH),
 334                 shareValues.getAsString(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER)
 335         };
 336         db.update(ProviderTableMeta.FILE_TABLE_NAME, fileValues, whereShare, whereArgsShare);
 337     }
 338
 339
 340     @Override
 341     public boolean onCreate() {
 342         mDbHelper = new DataBaseHelper(getContext());
 343
 344         String authority = getContext().getResources().getString(R.string.authority);
 345         mUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
 346         mUriMatcher.addURI(authority, null, ROOT_DIRECTORY);
 347         mUriMatcher.addURI(authority, "file/", SINGLE_FILE);
 348         mUriMatcher.addURI(authority, "file/#", SINGLE_FILE);
 349         mUriMatcher.addURI(authority, "dir/", DIRECTORY);
 350         mUriMatcher.addURI(authority, "dir/#", DIRECTORY);
 351         mUriMatcher.addURI(authority, "shares/", SHARES);
 352         mUriMatcher.addURI(authority, "shares/#", SHARES);
 353
 354         return true;
 355     }
 356
 357
 358     @Override
 359     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
 360         Cursor result = null;
 361         SQLiteDatabase db = mDbHelper.getReadableDatabase();
 362         db.beginTransaction();
 363         try {
 364             result = query(db, uri, projection, selection, selectionArgs, sortOrder);
 365             db.setTransactionSuccessful();
 366         } finally {
 367             db.endTransaction();
 368         }
 369         return result;
 370     }
 371
 372     private Cursor query(SQLiteDatabase db, Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
 373         SQLiteQueryBuilder sqlQuery = new SQLiteQueryBuilder();
 374
 375         sqlQuery.setTables(ProviderTableMeta.FILE_TABLE_NAME);
 376         sqlQuery.setProjectionMap(mFileProjectionMap);
 377
 378         switch (mUriMatcher.match(uri)) {
 379         case ROOT_DIRECTORY:
 380             break;
 381         case DIRECTORY:
 382             String folderId = uri.getPathSegments().get(1);
 383             sqlQuery.appendWhere(ProviderTableMeta.FILE_PARENT + "="
 384                     + folderId);
 385             break;
 386         case SINGLE_FILE:
 387             if (uri.getPathSegments().size() > 1) {
 388                 sqlQuery.appendWhere(ProviderTableMeta._ID + "="
 389                         + uri.getPathSegments().get(1));
 390             }
 391             break;
 392         case SHARES:
 393             sqlQuery.setTables(ProviderTableMeta.OCSHARES_TABLE_NAME);
 394             sqlQuery.setProjectionMap(mOCSharesProjectionMap);
 395             if (uri.getPathSegments().size() > 1) {
 396                 sqlQuery.appendWhere(ProviderTableMeta._ID + "="
 397                         + uri.getPathSegments().get(1));
 398             }
 399             break;
 400         default:
 401             throw new IllegalArgumentException("Unknown uri id: " + uri);
 402         }
 403
 404         String order;
 405         if (TextUtils.isEmpty(sortOrder)) {
 406             if (mUriMatcher.match(uri) == SHARES) {
 407                 order = ProviderTableMeta.OCSHARES_DEFAULT_SORT_ORDER;
 408             } else {
 409
 410                 order = ProviderTableMeta.FILE_DEFAULT_SORT_ORDER;
 411             }
 412         } else {
 413             order = sortOrder;
 414         }
 415
 416         // DB case_sensitive
 417         db.execSQL("PRAGMA case_sensitive_like = true");
 418         Cursor c = sqlQuery.query(db, projection, selection, selectionArgs, null, null, order);
 419         Log_OC.d(TAG, "setting notification URI: " + uri);
 420         c.setNotificationUri(getContext().getContentResolver(), uri);
 421         return c;
 422     }
 423
 424     @Override
 425     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
 426
 427         //Log_OC.d(TAG, "Updating " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 428         int count = 0;
 429         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 430         db.beginTransaction();
 431         try {
 432             count = update(db, uri, values, selection, selectionArgs);
 433             db.setTransactionSuccessful();
 434         } finally {
 435             db.endTransaction();
 436         }
 437         getContext().getContentResolver().notifyChange(uri, null);
 438         return count;
 439     }
 440
 441
 442
 443     private int update(SQLiteDatabase db, Uri uri, ContentValues values, String selection, String[] selectionArgs) {
 444         switch (mUriMatcher.match(uri)) {
 445             case DIRECTORY:
 446                 return  0; //updateFolderSize(db, selectionArgs[0]);
 447             case SHARES:
 448                 return db.update(ProviderTableMeta.OCSHARES_TABLE_NAME, values, selection, selectionArgs);
 449             default:
 450                 return db.update(ProviderTableMeta.FILE_TABLE_NAME, values, selection, selectionArgs);
 451         }
 452     }
 453
 454  /*
 455     private int updateFolderSize(SQLiteDatabase db, String folderId) {
 456         int count = 0;
 457         String [] whereArgs = new String[] { folderId };
 458
 459         // read current size saved for the folder
 460         long folderSize = 0;
 461         long folderParentId = -1;
 462         Uri selectFolderUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_FILE, folderId);
 463         String[] folderProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
 464         String folderWhere = ProviderTableMeta._ID + "=?";
 465         Cursor folderCursor = query(db, selectFolderUri, folderProjection, folderWhere, whereArgs, null);
 466         if (folderCursor != null && folderCursor.moveToFirst()) {
 467             folderSize = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));;
 468             folderParentId = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_PARENT));;
 469         }
 470         folderCursor.close();
 471
 472         // read and sum sizes of children
 473         long childrenSize = 0;
 474         Uri selectChildrenUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, folderId);
 475         String[] childrenProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
 476         String childrenWhere = ProviderTableMeta.FILE_PARENT + "=?";
 477         Cursor childrenCursor = query(db, selectChildrenUri, childrenProjection, childrenWhere, whereArgs, null);
 478         if (childrenCursor != null && childrenCursor.moveToFirst()) {
 479             while (!childrenCursor.isAfterLast()) {
 480                 childrenSize += childrenCursor.getLong(childrenCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));
 481                 childrenCursor.moveToNext();
 482             }
 483         }
 484         childrenCursor.close();
 485
 486         // update if needed
 487         if (folderSize != childrenSize) {
 488             Log_OC.d("FileContentProvider", "Updating " + folderSize + " to " + childrenSize);
 489             ContentValues cv = new ContentValues();
 490             cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, childrenSize);
 491             count = db.update(ProviderTableMeta.FILE_TABLE_NAME, cv, folderWhere, whereArgs);
 492
 493             // propagate update until root
 494             if (folderParentId > FileDataStorageManager.ROOT_PARENT_ID) {
 495                 Log_OC.d("FileContentProvider", "Propagating update to " + folderParentId);
 496                 updateFolderSize(db, String.valueOf(folderParentId));
 497             } else {
 498                 Log_OC.d("FileContentProvider", "NOT propagating to " + folderParentId);
 499             }
 500         } else {
 501             Log_OC.d("FileContentProvider", "NOT updating, sizes are " + folderSize + " and " + childrenSize);
 502         }
 503         return count;
 504     }
 505 */
 506
 507     @Override
 508     public ContentProviderResult[] applyBatch (ArrayList<ContentProviderOperation> operations) throws OperationApplicationException {
 509         Log_OC.d("FileContentProvider", "applying batch in provider " + this + " (temporary: " + isTemporary() + ")" );
 510         ContentProviderResult[] results = new ContentProviderResult[operations.size()];
 511         int i=0;
 512
 513         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 514         db.beginTransaction();  // it's supposed that transactions can be nested
 515         try {
 516             for (ContentProviderOperation operation : operations) {
 517                 results[i] = operation.apply(this, results, i);
 518                 i++;
 519             }
 520             db.setTransactionSuccessful();
 521         } finally {
 522             db.endTransaction();
 523         }
 524         Log_OC.d("FileContentProvider", "applied batch in provider " + this);
 525         return results;
 526     }
 527
 528
 529     class DataBaseHelper extends SQLiteOpenHelper {
 530
 531         public DataBaseHelper(Context context) {
 532             super(context, ProviderMeta.DB_NAME, null, ProviderMeta.DB_VERSION);
 533
 534         }
 535
 536         @Override
 537         public void onCreate(SQLiteDatabase db) {
 538             // files table
 539             Log_OC.i("SQL", "Entering in onCreate");
 540             db.execSQL("CREATE TABLE " + ProviderTableMeta.FILE_TABLE_NAME + "("
 541                     + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 542                     + ProviderTableMeta.FILE_NAME + " TEXT, "
 543                     + ProviderTableMeta.FILE_PATH + " TEXT, "
 544                     + ProviderTableMeta.FILE_PARENT + " INTEGER, "
 545                     + ProviderTableMeta.FILE_CREATION + " INTEGER, "
 546                     + ProviderTableMeta.FILE_MODIFIED + " INTEGER, "
 547                     + ProviderTableMeta.FILE_CONTENT_TYPE + " TEXT, "
 548                     + ProviderTableMeta.FILE_CONTENT_LENGTH + " INTEGER, "
 549                     + ProviderTableMeta.FILE_STORAGE_PATH + " TEXT, "
 550                     + ProviderTableMeta.FILE_ACCOUNT_OWNER + " TEXT, "
 551                     + ProviderTableMeta.FILE_LAST_SYNC_DATE + " INTEGER, "
 552                     + ProviderTableMeta.FILE_KEEP_IN_SYNC + " INTEGER, "
 553                     + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA + " INTEGER, "
 554                     + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA + " INTEGER, "
 555                     + ProviderTableMeta.FILE_ETAG + " TEXT, "
 556                     + ProviderTableMeta.FILE_SHARE_BY_LINK + " INTEGER, "
 557                     + ProviderTableMeta.FILE_PUBLIC_LINK  + " TEXT );"
 558                     );
 559
 560             // Create table ocshares
 561             db.execSQL("CREATE TABLE " + ProviderTableMeta.OCSHARES_TABLE_NAME + "("
 562                     + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 563                     + ProviderTableMeta.OCSHARES_FILE_SOURCE + " INTEGER, "
 564                     + ProviderTableMeta.OCSHARES_ITEM_SOURCE + " INTEGER, "
 565                     + ProviderTableMeta.OCSHARES_SHARE_TYPE + " INTEGER, "
 566                     + ProviderTableMeta.OCSHARES_SHARE_WITH + " TEXT, "
 567                     + ProviderTableMeta.OCSHARES_PATH + " TEXT, "
 568                     + ProviderTableMeta.OCSHARES_PERMISSIONS+ " INTEGER, "
 569                     + ProviderTableMeta.OCSHARES_SHARED_DATE + " INTEGER, "
 570                     + ProviderTableMeta.OCSHARES_EXPIRATION_DATE + " INTEGER, "
 571                     + ProviderTableMeta.OCSHARES_TOKEN + " TEXT, "
 572                     + ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME + " TEXT, "
 573                     + ProviderTableMeta.OCSHARES_IS_DIRECTORY + " INTEGER, "  // boolean
 574                     + ProviderTableMeta.OCSHARES_USER_ID + " INTEGER, "
 575                     + ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + " INTEGER,"
 576                     + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + " TEXT );" );
 577         }
 578
 579         @Override
 580         public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
 581             Log_OC.i("SQL", "Entering in onUpgrade");
 582             boolean upgraded = false;
 583             if (oldVersion == 1 && newVersion >= 2) {
 584                 Log_OC.i("SQL", "Entering in the #1 ADD in onUpgrade");
 585                 db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 586                            " ADD COLUMN " + ProviderTableMeta.FILE_KEEP_IN_SYNC  + " INTEGER " +
 587                            " DEFAULT 0");
 588                 upgraded = true;
 589             }
 590             if (oldVersion < 3 && newVersion >= 3) {
 591                 Log_OC.i("SQL", "Entering in the #2 ADD in onUpgrade");
 592                 db.beginTransaction();
 593                 try {
 594                     db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 595                                " ADD COLUMN " + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA  + " INTEGER " +
 596                                " DEFAULT 0");
 597
 598                     // assume there are not local changes pending to upload
 599                     db.execSQL("UPDATE " + ProviderTableMeta.FILE_TABLE_NAME +
 600                             " SET " + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA + " = " + System.currentTimeMillis() +
 601                             " WHERE " + ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL");
 602
 603                     upgraded = true;
 604                     db.setTransactionSuccessful();
 605                 } finally {
 606                     db.endTransaction();
 607                 }
 608             }
 609             if (oldVersion < 4 && newVersion >= 4) {
 610                 Log_OC.i("SQL", "Entering in the #3 ADD in onUpgrade");
 611                 db.beginTransaction();
 612                 try {
 613                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 614                            " ADD COLUMN " + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA  + " INTEGER " +
 615                            " DEFAULT 0");
 616
 617                     db.execSQL("UPDATE " + ProviderTableMeta.FILE_TABLE_NAME +
 618                            " SET " + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA + " = " + ProviderTableMeta.FILE_MODIFIED +
 619                            " WHERE " + ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL");
 620
 621                     upgraded = true;
 622                     db.setTransactionSuccessful();
 623                 } finally {
 624                     db.endTransaction();
 625                 }
 626             }
 627             if (!upgraded)
 628                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 629
 630             if (oldVersion < 5 && newVersion >= 5) {
 631                 Log_OC.i("SQL", "Entering in the #4 ADD in onUpgrade");
 632                 db.beginTransaction();
 633                 try {
 634                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 635                             " ADD COLUMN " + ProviderTableMeta.FILE_ETAG + " TEXT " +
 636                             " DEFAULT NULL");
 637
 638                     upgraded = true;
 639                     db.setTransactionSuccessful();
 640                 } finally {
 641                     db.endTransaction();
 642                 }
 643             }
 644             if (!upgraded)
 645                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 646
 647             if (oldVersion < 6 && newVersion >= 6) {
 648                 Log_OC.i("SQL", "Entering in the #5 ADD in onUpgrade");
 649                 db.beginTransaction();
 650                 try {
 651                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 652                             " ADD COLUMN " + ProviderTableMeta.FILE_SHARE_BY_LINK + " INTEGER " +
 653                             " DEFAULT 0");
 654
 655                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 656                             " ADD COLUMN " + ProviderTableMeta.FILE_PUBLIC_LINK + " TEXT " +
 657                             " DEFAULT NULL");
 658
 659                     // Create table ocshares
 660                     db.execSQL("CREATE TABLE " + ProviderTableMeta.OCSHARES_TABLE_NAME + "("
 661                             + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 662                             + ProviderTableMeta.OCSHARES_FILE_SOURCE + " INTEGER, "
 663                             + ProviderTableMeta.OCSHARES_ITEM_SOURCE + " INTEGER, "
 664                             + ProviderTableMeta.OCSHARES_SHARE_TYPE + " INTEGER, "
 665                             + ProviderTableMeta.OCSHARES_SHARE_WITH + " TEXT, "
 666                             + ProviderTableMeta.OCSHARES_PATH + " TEXT, "
 667                             + ProviderTableMeta.OCSHARES_PERMISSIONS+ " INTEGER, "
 668                             + ProviderTableMeta.OCSHARES_SHARED_DATE + " INTEGER, "
 669                             + ProviderTableMeta.OCSHARES_EXPIRATION_DATE + " INTEGER, "
 670                             + ProviderTableMeta.OCSHARES_TOKEN + " TEXT, "
 671                             + ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME + " TEXT, "
 672                             + ProviderTableMeta.OCSHARES_IS_DIRECTORY + " INTEGER, "  // boolean
 673                             + ProviderTableMeta.OCSHARES_USER_ID + " INTEGER, "
 674                             + ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + " INTEGER,"
 675                             + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + " TEXT );" );
 676
 677                     upgraded = true;
 678                     db.setTransactionSuccessful();
 679                 } finally {
 680                     db.endTransaction();
 681                 }
 682             }
 683             if (!upgraded)
 684                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 685         }
 686     }
 687
 688 }