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         mFileProjectionMap.put(ProviderTableMeta.FILE_PERMISSIONS,
  97                 ProviderTableMeta.FILE_PERMISSIONS);
  98         mFileProjectionMap.put(ProviderTableMeta.FILE_REMOTE_ID,
  99                 ProviderTableMeta.FILE_REMOTE_ID);
 100     }
 101
 102     private static final int SINGLE_FILE = 1;
 103     private static final int DIRECTORY = 2;
 104     private static final int ROOT_DIRECTORY = 3;
 105     private static final int SHARES = 4;
 106
 107     private static final String TAG = FileContentProvider.class.getSimpleName();
 108
 109     // Projection for ocshares table
 110     private static HashMap<String, String> mOCSharesProjectionMap;
 111     static {
 112         mOCSharesProjectionMap = new HashMap<String, String>();
 113         mOCSharesProjectionMap.put(ProviderTableMeta._ID, ProviderTableMeta._ID);
 114         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_FILE_SOURCE,
 115                 ProviderTableMeta.OCSHARES_FILE_SOURCE);
 116         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ITEM_SOURCE,
 117                 ProviderTableMeta.OCSHARES_ITEM_SOURCE);
 118         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_TYPE,
 119                 ProviderTableMeta.OCSHARES_SHARE_TYPE);
 120         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_WITH,
 121                 ProviderTableMeta.OCSHARES_SHARE_WITH);
 122         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_PATH,
 123                 ProviderTableMeta.OCSHARES_PATH);
 124         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_PERMISSIONS,
 125                 ProviderTableMeta.OCSHARES_PERMISSIONS);
 126         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARED_DATE,
 127                 ProviderTableMeta.OCSHARES_SHARED_DATE);
 128         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_EXPIRATION_DATE,
 129                 ProviderTableMeta.OCSHARES_EXPIRATION_DATE);
 130         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_TOKEN,
 131                 ProviderTableMeta.OCSHARES_TOKEN);
 132         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME,
 133                 ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME);
 134         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_IS_DIRECTORY,
 135                 ProviderTableMeta.OCSHARES_IS_DIRECTORY);
 136         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_USER_ID,
 137                 ProviderTableMeta.OCSHARES_USER_ID);
 138         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED,
 139                 ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED);
 140         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER,
 141                 ProviderTableMeta.OCSHARES_ACCOUNT_OWNER);
 142     }
 143
 144     private UriMatcher mUriMatcher;
 145
 146     @Override
 147     public int delete(Uri uri, String where, String[] whereArgs) {
 148         //Log_OC.d(TAG, "Deleting " + uri + " at provider " + this);
 149         int count = 0;
 150         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 151         db.beginTransaction();
 152         try {
 153             count = delete(db, uri, where, whereArgs);
 154             db.setTransactionSuccessful();
 155         } finally {
 156             db.endTransaction();
 157         }
 158         getContext().getContentResolver().notifyChange(uri, null);
 159         return count;
 160     }
 161
 162     private int delete(SQLiteDatabase db, Uri uri, String where, String[] whereArgs) {
 163         int count = 0;
 164         switch (mUriMatcher.match(uri)) {
 165         case SINGLE_FILE:
 166             /*Cursor c = query(db, uri, null, where, whereArgs, null);
 167             String remotePath = "(unexisting)";
 168             if (c != null && c.moveToFirst()) {
 169                 remotePath = c.getString(c.getColumnIndex(ProviderTableMeta.FILE_PATH));
 170             }
 171             Log_OC.d(TAG, "Removing FILE " + remotePath);
 172             */
 173             count = db.delete(ProviderTableMeta.FILE_TABLE_NAME,
 174                     ProviderTableMeta._ID
 175                             + "="
 176                             + uri.getPathSegments().get(1)
 177                             + (!TextUtils.isEmpty(where) ? " AND (" + where
 178                                     + ")" : ""), whereArgs);
 179             /* just for log
 180             if (c!=null) {
 181                 c.close();
 182             }
 183             */
 184             break;
 185         case DIRECTORY:
 186             // deletion of folder is recursive
 187             /*
 188             Uri folderUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, Long.parseLong(uri.getPathSegments().get(1)));
 189             Cursor folder = query(db, folderUri, null, null, null, null);
 190             String folderName = "(unknown)";
 191             if (folder != null && folder.moveToFirst()) {
 192                 folderName = folder.getString(folder.getColumnIndex(ProviderTableMeta.FILE_PATH));
 193             }
 194             */
 195             Cursor children = query(uri, null, null, null, null);
 196             if (children != null && children.moveToFirst())  {
 197                 long childId;
 198                 boolean isDir;
 199                 //String remotePath;
 200                 while (!children.isAfterLast()) {
 201                     childId = children.getLong(children.getColumnIndex(ProviderTableMeta._ID));
 202                     isDir = "DIR".equals(children.getString(children.getColumnIndex(ProviderTableMeta.FILE_CONTENT_TYPE)));
 203                     //remotePath = children.getString(children.getColumnIndex(ProviderTableMeta.FILE_PATH));
 204                     if (isDir) {
 205                         count += delete(db, ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_DIR, childId), null, null);
 206                     } else {
 207                         count += delete(db, ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, childId), null, null);
 208                     }
 209                     children.moveToNext();
 210                 }
 211                 children.close();
 212             } /*else {
 213                 Log_OC.d(TAG, "No child to remove in DIRECTORY " + folderName);
 214             }
 215             Log_OC.d(TAG, "Removing DIRECTORY " + folderName + " (or maybe not) ");
 216             */
 217             count += db.delete(ProviderTableMeta.FILE_TABLE_NAME,
 218                     ProviderTableMeta._ID
 219                     + "="
 220                     + uri.getPathSegments().get(1)
 221                     + (!TextUtils.isEmpty(where) ? " AND (" + where
 222                             + ")" : ""), whereArgs);
 223             /* Just for log
 224              if (folder != null) {
 225                 folder.close();
 226             }*/
 227             break;
 228         case ROOT_DIRECTORY:
 229             //Log_OC.d(TAG, "Removing ROOT!");
 230             count = db.delete(ProviderTableMeta.FILE_TABLE_NAME, where, whereArgs);
 231             break;
 232         case SHARES:
 233             count = db.delete(ProviderTableMeta.OCSHARES_TABLE_NAME, where, whereArgs);
 234             break;
 235         default:
 236             //Log_OC.e(TAG, "Unknown uri " + uri);
 237             throw new IllegalArgumentException("Unknown uri: " + uri.toString());
 238         }
 239         return count;
 240     }
 241
 242
 243     @Override
 244     public String getType(Uri uri) {
 245         switch (mUriMatcher.match(uri)) {
 246         case ROOT_DIRECTORY:
 247             return ProviderTableMeta.CONTENT_TYPE;
 248         case SINGLE_FILE:
 249             return ProviderTableMeta.CONTENT_TYPE_ITEM;
 250         default:
 251             throw new IllegalArgumentException("Unknown Uri id."
 252                     + uri.toString());
 253         }
 254     }
 255
 256     @Override
 257     public Uri insert(Uri uri, ContentValues values) {
 258         //Log_OC.d(TAG, "Inserting " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 259         Uri newUri = null;
 260         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 261         db.beginTransaction();
 262         try {
 263             newUri = insert(db, uri, values);
 264             db.setTransactionSuccessful();
 265         } finally {
 266             db.endTransaction();
 267         }
 268         getContext().getContentResolver().notifyChange(newUri, null);
 269         return newUri;
 270     }
 271
 272     private Uri insert(SQLiteDatabase db, Uri uri, ContentValues values) {
 273         switch (mUriMatcher.match(uri)){
 274         case ROOT_DIRECTORY:
 275         case SINGLE_FILE:
 276             String remotePath = values.getAsString(ProviderTableMeta.FILE_PATH);
 277             String accountName = values.getAsString(ProviderTableMeta.FILE_ACCOUNT_OWNER);
 278             String[] projection = new String[] {ProviderTableMeta._ID, ProviderTableMeta.FILE_PATH, ProviderTableMeta.FILE_ACCOUNT_OWNER };
 279             String where = ProviderTableMeta.FILE_PATH + "=? AND " + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
 280             String[] whereArgs = new String[] {remotePath, accountName};
 281             Cursor doubleCheck = query(db, uri, projection, where, whereArgs, null);
 282             if (doubleCheck == null || !doubleCheck.moveToFirst()) {    // ugly patch; serious refactorization is needed to reduce work in FileDataStorageManager and bring it to FileContentProvider
 283                 long rowId = db.insert(ProviderTableMeta.FILE_TABLE_NAME, null, values);
 284                 if (rowId > 0) {
 285                     Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, rowId);
 286                     //Log_OC.d(TAG, "Inserted " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 287                     return insertedFileUri;
 288                 } else {
 289                     //Log_OC.d(TAG, "Error while inserting " + values.getAsString(ProviderTableMeta.FILE_PATH)  + " at provider " + this);
 290                     throw new SQLException("ERROR " + uri);
 291                 }
 292             } else {
 293                 // file is already inserted; race condition, let's avoid a duplicated entry
 294                 Uri insertedFileUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, doubleCheck.getLong(doubleCheck.getColumnIndex(ProviderTableMeta._ID)));
 295                 doubleCheck.close();
 296
 297                 return insertedFileUri;
 298             }
 299
 300         case SHARES:
 301             String path = values.getAsString(ProviderTableMeta.OCSHARES_PATH);
 302             String accountNameShare= values.getAsString(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER);
 303             String[] projectionShare = new String[] {ProviderTableMeta._ID, ProviderTableMeta.OCSHARES_PATH, ProviderTableMeta.OCSHARES_ACCOUNT_OWNER };
 304             String whereShare = ProviderTableMeta.OCSHARES_PATH + "=? AND " + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?";
 305             String[] whereArgsShare = new String[] {path, accountNameShare};
 306             Uri insertedShareUri = null;
 307             Cursor doubleCheckShare = query(db, uri, projectionShare, whereShare, whereArgsShare, null);
 308             if (doubleCheckShare == null || !doubleCheckShare.moveToFirst()) {    // ugly patch; serious refactorization is needed to reduce work in FileDataStorageManager and bring it to FileContentProvider
 309                 long rowId = db.insert(ProviderTableMeta.OCSHARES_TABLE_NAME, null, values);
 310                 if (rowId >0) {
 311                     insertedShareUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_SHARE, rowId);
 312                 } else {
 313                     throw new SQLException("ERROR " + uri);
 314
 315                 }
 316             } else {
 317                 // file is already inserted; race condition, let's avoid a duplicated entry
 318                 insertedShareUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_SHARE, doubleCheckShare.getLong(doubleCheckShare.getColumnIndex(ProviderTableMeta._ID)));
 319                 doubleCheckShare.close();
 320             }
 321             updateFilesTableAccordingToShareInsertion(db, uri, values);
 322             return insertedShareUri;
 323
 324
 325         default:
 326             throw new IllegalArgumentException("Unknown uri id: " + uri);
 327         }
 328
 329     }
 330
 331     private void updateFilesTableAccordingToShareInsertion(SQLiteDatabase db, Uri uri, ContentValues shareValues) {
 332         ContentValues fileValues = new ContentValues();
 333         fileValues.put(ProviderTableMeta.FILE_SHARE_BY_LINK,
 334                             ShareType.PUBLIC_LINK.getValue() == shareValues.getAsInteger(ProviderTableMeta.OCSHARES_SHARE_TYPE)? 1 : 0);
 335         String whereShare = ProviderTableMeta.FILE_PATH + "=? AND " + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
 336         String[] whereArgsShare = new String[] {
 337                 shareValues.getAsString(ProviderTableMeta.OCSHARES_PATH),
 338                 shareValues.getAsString(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER)
 339         };
 340         db.update(ProviderTableMeta.FILE_TABLE_NAME, fileValues, whereShare, whereArgsShare);
 341     }
 342
 343
 344     @Override
 345     public boolean onCreate() {
 346         mDbHelper = new DataBaseHelper(getContext());
 347
 348         String authority = getContext().getResources().getString(R.string.authority);
 349         mUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
 350         mUriMatcher.addURI(authority, null, ROOT_DIRECTORY);
 351         mUriMatcher.addURI(authority, "file/", SINGLE_FILE);
 352         mUriMatcher.addURI(authority, "file/#", SINGLE_FILE);
 353         mUriMatcher.addURI(authority, "dir/", DIRECTORY);
 354         mUriMatcher.addURI(authority, "dir/#", DIRECTORY);
 355         mUriMatcher.addURI(authority, "shares/", SHARES);
 356         mUriMatcher.addURI(authority, "shares/#", SHARES);
 357
 358         return true;
 359     }
 360
 361
 362     @Override
 363     public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
 364         Cursor result = null;
 365         SQLiteDatabase db = mDbHelper.getReadableDatabase();
 366         db.beginTransaction();
 367         try {
 368             result = query(db, uri, projection, selection, selectionArgs, sortOrder);
 369             db.setTransactionSuccessful();
 370         } finally {
 371             db.endTransaction();
 372         }
 373         return result;
 374     }
 375
 376     private Cursor query(SQLiteDatabase db, Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
 377         SQLiteQueryBuilder sqlQuery = new SQLiteQueryBuilder();
 378
 379         sqlQuery.setTables(ProviderTableMeta.FILE_TABLE_NAME);
 380         sqlQuery.setProjectionMap(mFileProjectionMap);
 381
 382         switch (mUriMatcher.match(uri)) {
 383         case ROOT_DIRECTORY:
 384             break;
 385         case DIRECTORY:
 386             String folderId = uri.getPathSegments().get(1);
 387             sqlQuery.appendWhere(ProviderTableMeta.FILE_PARENT + "="
 388                     + folderId);
 389             break;
 390         case SINGLE_FILE:
 391             if (uri.getPathSegments().size() > 1) {
 392                 sqlQuery.appendWhere(ProviderTableMeta._ID + "="
 393                         + uri.getPathSegments().get(1));
 394             }
 395             break;
 396         case SHARES:
 397             sqlQuery.setTables(ProviderTableMeta.OCSHARES_TABLE_NAME);
 398             sqlQuery.setProjectionMap(mOCSharesProjectionMap);
 399             if (uri.getPathSegments().size() > 1) {
 400                 sqlQuery.appendWhere(ProviderTableMeta._ID + "="
 401                         + uri.getPathSegments().get(1));
 402             }
 403             break;
 404         default:
 405             throw new IllegalArgumentException("Unknown uri id: " + uri);
 406         }
 407
 408         String order;
 409         if (TextUtils.isEmpty(sortOrder)) {
 410             if (mUriMatcher.match(uri) == SHARES) {
 411                 order = ProviderTableMeta.OCSHARES_DEFAULT_SORT_ORDER;
 412             } else {
 413
 414                 order = ProviderTableMeta.FILE_DEFAULT_SORT_ORDER;
 415             }
 416         } else {
 417             order = sortOrder;
 418         }
 419
 420         // DB case_sensitive
 421         db.execSQL("PRAGMA case_sensitive_like = true");
 422         Cursor c = sqlQuery.query(db, projection, selection, selectionArgs, null, null, order);
 423         c.setNotificationUri(getContext().getContentResolver(), uri);
 424         return c;
 425     }
 426
 427     @Override
 428     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
 429
 430         //Log_OC.d(TAG, "Updating " + values.getAsString(ProviderTableMeta.FILE_PATH) + " at provider " + this);
 431         int count = 0;
 432         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 433         db.beginTransaction();
 434         try {
 435             count = update(db, uri, values, selection, selectionArgs);
 436             db.setTransactionSuccessful();
 437         } finally {
 438             db.endTransaction();
 439         }
 440         getContext().getContentResolver().notifyChange(uri, null);
 441         return count;
 442     }
 443
 444
 445
 446     private int update(SQLiteDatabase db, Uri uri, ContentValues values, String selection, String[] selectionArgs) {
 447         switch (mUriMatcher.match(uri)) {
 448             case DIRECTORY:
 449                 return  0; //updateFolderSize(db, selectionArgs[0]);
 450             case SHARES:
 451                 return db.update(ProviderTableMeta.OCSHARES_TABLE_NAME, values, selection, selectionArgs);
 452             default:
 453                 return db.update(ProviderTableMeta.FILE_TABLE_NAME, values, selection, selectionArgs);
 454         }
 455     }
 456
 457  /*
 458     private int updateFolderSize(SQLiteDatabase db, String folderId) {
 459         int count = 0;
 460         String [] whereArgs = new String[] { folderId };
 461
 462         // read current size saved for the folder
 463         long folderSize = 0;
 464         long folderParentId = -1;
 465         Uri selectFolderUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_FILE, folderId);
 466         String[] folderProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
 467         String folderWhere = ProviderTableMeta._ID + "=?";
 468         Cursor folderCursor = query(db, selectFolderUri, folderProjection, folderWhere, whereArgs, null);
 469         if (folderCursor != null && folderCursor.moveToFirst()) {
 470             folderSize = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));;
 471             folderParentId = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_PARENT));;
 472         }
 473         folderCursor.close();
 474
 475         // read and sum sizes of children
 476         long childrenSize = 0;
 477         Uri selectChildrenUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, folderId);
 478         String[] childrenProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
 479         String childrenWhere = ProviderTableMeta.FILE_PARENT + "=?";
 480         Cursor childrenCursor = query(db, selectChildrenUri, childrenProjection, childrenWhere, whereArgs, null);
 481         if (childrenCursor != null && childrenCursor.moveToFirst()) {
 482             while (!childrenCursor.isAfterLast()) {
 483                 childrenSize += childrenCursor.getLong(childrenCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));
 484                 childrenCursor.moveToNext();
 485             }
 486         }
 487         childrenCursor.close();
 488
 489         // update if needed
 490         if (folderSize != childrenSize) {
 491             Log_OC.d("FileContentProvider", "Updating " + folderSize + " to " + childrenSize);
 492             ContentValues cv = new ContentValues();
 493             cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, childrenSize);
 494             count = db.update(ProviderTableMeta.FILE_TABLE_NAME, cv, folderWhere, whereArgs);
 495
 496             // propagate update until root
 497             if (folderParentId > FileDataStorageManager.ROOT_PARENT_ID) {
 498                 Log_OC.d("FileContentProvider", "Propagating update to " + folderParentId);
 499                 updateFolderSize(db, String.valueOf(folderParentId));
 500             } else {
 501                 Log_OC.d("FileContentProvider", "NOT propagating to " + folderParentId);
 502             }
 503         } else {
 504             Log_OC.d("FileContentProvider", "NOT updating, sizes are " + folderSize + " and " + childrenSize);
 505         }
 506         return count;
 507     }
 508 */
 509
 510     @Override
 511     public ContentProviderResult[] applyBatch (ArrayList<ContentProviderOperation> operations) throws OperationApplicationException {
 512         Log_OC.d("FileContentProvider", "applying batch in provider " + this + " (temporary: " + isTemporary() + ")" );
 513         ContentProviderResult[] results = new ContentProviderResult[operations.size()];
 514         int i=0;
 515
 516         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 517         db.beginTransaction();  // it's supposed that transactions can be nested
 518         try {
 519             for (ContentProviderOperation operation : operations) {
 520                 results[i] = operation.apply(this, results, i);
 521                 i++;
 522             }
 523             db.setTransactionSuccessful();
 524         } finally {
 525             db.endTransaction();
 526         }
 527         Log_OC.d("FileContentProvider", "applied batch in provider " + this);
 528         return results;
 529     }
 530
 531
 532     class DataBaseHelper extends SQLiteOpenHelper {
 533
 534         public DataBaseHelper(Context context) {
 535             super(context, ProviderMeta.DB_NAME, null, ProviderMeta.DB_VERSION);
 536
 537         }
 538
 539         @Override
 540         public void onCreate(SQLiteDatabase db) {
 541             // files table
 542             Log_OC.i("SQL", "Entering in onCreate");
 543             db.execSQL("CREATE TABLE " + ProviderTableMeta.FILE_TABLE_NAME + "("
 544                     + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 545                     + ProviderTableMeta.FILE_NAME + " TEXT, "
 546                     + ProviderTableMeta.FILE_PATH + " TEXT, "
 547                     + ProviderTableMeta.FILE_PARENT + " INTEGER, "
 548                     + ProviderTableMeta.FILE_CREATION + " INTEGER, "
 549                     + ProviderTableMeta.FILE_MODIFIED + " INTEGER, "
 550                     + ProviderTableMeta.FILE_CONTENT_TYPE + " TEXT, "
 551                     + ProviderTableMeta.FILE_CONTENT_LENGTH + " INTEGER, "
 552                     + ProviderTableMeta.FILE_STORAGE_PATH + " TEXT, "
 553                     + ProviderTableMeta.FILE_ACCOUNT_OWNER + " TEXT, "
 554                     + ProviderTableMeta.FILE_LAST_SYNC_DATE + " INTEGER, "
 555                     + ProviderTableMeta.FILE_KEEP_IN_SYNC + " INTEGER, "
 556                     + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA + " INTEGER, "
 557                     + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA + " INTEGER, "
 558                     + ProviderTableMeta.FILE_ETAG + " TEXT, "
 559                     + ProviderTableMeta.FILE_SHARE_BY_LINK + " INTEGER, "
 560                     + ProviderTableMeta.FILE_PUBLIC_LINK  + " TEXT, "
 561                     + ProviderTableMeta.FILE_PERMISSIONS  + " TEXT null,"
 562                     + ProviderTableMeta.FILE_REMOTE_ID  + " TEXT null);"
 563                     );
 564
 565             // Create table ocshares
 566             db.execSQL("CREATE TABLE " + ProviderTableMeta.OCSHARES_TABLE_NAME + "("
 567                     + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 568                     + ProviderTableMeta.OCSHARES_FILE_SOURCE + " INTEGER, "
 569                     + ProviderTableMeta.OCSHARES_ITEM_SOURCE + " INTEGER, "
 570                     + ProviderTableMeta.OCSHARES_SHARE_TYPE + " INTEGER, "
 571                     + ProviderTableMeta.OCSHARES_SHARE_WITH + " TEXT, "
 572                     + ProviderTableMeta.OCSHARES_PATH + " TEXT, "
 573                     + ProviderTableMeta.OCSHARES_PERMISSIONS+ " INTEGER, "
 574                     + ProviderTableMeta.OCSHARES_SHARED_DATE + " INTEGER, "
 575                     + ProviderTableMeta.OCSHARES_EXPIRATION_DATE + " INTEGER, "
 576                     + ProviderTableMeta.OCSHARES_TOKEN + " TEXT, "
 577                     + ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME + " TEXT, "
 578                     + ProviderTableMeta.OCSHARES_IS_DIRECTORY + " INTEGER, "  // boolean
 579                     + ProviderTableMeta.OCSHARES_USER_ID + " INTEGER, "
 580                     + ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + " INTEGER,"
 581                     + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + " TEXT );" );
 582         }
 583
 584         @Override
 585         public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
 586             Log_OC.i("SQL", "Entering in onUpgrade");
 587             boolean upgraded = false;
 588             if (oldVersion == 1 && newVersion >= 2) {
 589                 Log_OC.i("SQL", "Entering in the #1 ADD in onUpgrade");
 590                 db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 591                            " ADD COLUMN " + ProviderTableMeta.FILE_KEEP_IN_SYNC  + " INTEGER " +
 592                            " DEFAULT 0");
 593                 upgraded = true;
 594             }
 595             if (oldVersion < 3 && newVersion >= 3) {
 596                 Log_OC.i("SQL", "Entering in the #2 ADD in onUpgrade");
 597                 db.beginTransaction();
 598                 try {
 599                     db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 600                                " ADD COLUMN " + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA  + " INTEGER " +
 601                                " DEFAULT 0");
 602
 603                     // assume there are not local changes pending to upload
 604                     db.execSQL("UPDATE " + ProviderTableMeta.FILE_TABLE_NAME +
 605                             " SET " + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA + " = " + System.currentTimeMillis() +
 606                             " WHERE " + ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL");
 607
 608                     upgraded = true;
 609                     db.setTransactionSuccessful();
 610                 } finally {
 611                     db.endTransaction();
 612                 }
 613             }
 614             if (oldVersion < 4 && newVersion >= 4) {
 615                 Log_OC.i("SQL", "Entering in the #3 ADD in onUpgrade");
 616                 db.beginTransaction();
 617                 try {
 618                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 619                            " ADD COLUMN " + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA  + " INTEGER " +
 620                            " DEFAULT 0");
 621
 622                     db.execSQL("UPDATE " + ProviderTableMeta.FILE_TABLE_NAME +
 623                            " SET " + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA + " = " + ProviderTableMeta.FILE_MODIFIED +
 624                            " WHERE " + ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL");
 625
 626                     upgraded = true;
 627                     db.setTransactionSuccessful();
 628                 } finally {
 629                     db.endTransaction();
 630                 }
 631             }
 632             if (!upgraded)
 633                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 634
 635             if (oldVersion < 5 && newVersion >= 5) {
 636                 Log_OC.i("SQL", "Entering in the #4 ADD in onUpgrade");
 637                 db.beginTransaction();
 638                 try {
 639                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 640                             " ADD COLUMN " + ProviderTableMeta.FILE_ETAG + " TEXT " +
 641                             " DEFAULT NULL");
 642
 643                     upgraded = true;
 644                     db.setTransactionSuccessful();
 645                 } finally {
 646                     db.endTransaction();
 647                 }
 648             }
 649             if (!upgraded)
 650                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 651
 652             if (oldVersion < 6 && newVersion >= 6) {
 653                 Log_OC.i("SQL", "Entering in the #5 ADD in onUpgrade");
 654                 db.beginTransaction();
 655                 try {
 656                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 657                             " ADD COLUMN " + ProviderTableMeta.FILE_SHARE_BY_LINK + " INTEGER " +
 658                             " DEFAULT 0");
 659
 660                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 661                             " ADD COLUMN " + ProviderTableMeta.FILE_PUBLIC_LINK + " TEXT " +
 662                             " DEFAULT NULL");
 663
 664                     // Create table ocshares
 665                     db.execSQL("CREATE TABLE " + ProviderTableMeta.OCSHARES_TABLE_NAME + "("
 666                             + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 667                             + ProviderTableMeta.OCSHARES_FILE_SOURCE + " INTEGER, "
 668                             + ProviderTableMeta.OCSHARES_ITEM_SOURCE + " INTEGER, "
 669                             + ProviderTableMeta.OCSHARES_SHARE_TYPE + " INTEGER, "
 670                             + ProviderTableMeta.OCSHARES_SHARE_WITH + " TEXT, "
 671                             + ProviderTableMeta.OCSHARES_PATH + " TEXT, "
 672                             + ProviderTableMeta.OCSHARES_PERMISSIONS+ " INTEGER, "
 673                             + ProviderTableMeta.OCSHARES_SHARED_DATE + " INTEGER, "
 674                             + ProviderTableMeta.OCSHARES_EXPIRATION_DATE + " INTEGER, "
 675                             + ProviderTableMeta.OCSHARES_TOKEN + " TEXT, "
 676                             + ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME + " TEXT, "
 677                             + ProviderTableMeta.OCSHARES_IS_DIRECTORY + " INTEGER, "  // boolean
 678                             + ProviderTableMeta.OCSHARES_USER_ID + " INTEGER, "
 679                             + ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + " INTEGER,"
 680                             + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + " TEXT );" );
 681
 682                     upgraded = true;
 683                     db.setTransactionSuccessful();
 684                 } finally {
 685                     db.endTransaction();
 686                 }
 687             }
 688             if (!upgraded)
 689                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 690
 691             if (oldVersion < 7 && newVersion >= 7) {
 692                 Log_OC.i("SQL", "Entering in the #7 ADD in onUpgrade");
 693                 db.beginTransaction();
 694                 try {
 695                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 696                             " ADD COLUMN " + ProviderTableMeta.FILE_PERMISSIONS + " TEXT " +
 697                             " DEFAULT NULL");
 698
 699                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 700                             " ADD COLUMN " + ProviderTableMeta.FILE_REMOTE_ID + " TEXT " +
 701                             " DEFAULT NULL");
 702
 703                     upgraded = true;
 704                     db.setTransactionSuccessful();
 705                 } finally {
 706                     db.endTransaction();
 707                 }
 708             }
 709             if (!upgraded)
 710                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion + ", newVersion == " + newVersion);
 711         }
 712     }
 713
 714 }