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

   1 /**
   2  *   ownCloud Android client application
   3  *
   4  *   @author Bartek Przybylski
   5  *   @author David A. Velasco
   6  *   Copyright (C) 2011  Bartek Przybylski
   7  *   Copyright (C) 2015 ownCloud Inc.
   8  *
   9  *   This program is free software: you can redistribute it and/or modify
  10  *   it under the terms of the GNU General Public License version 2,
  11  *   as published by the Free Software Foundation.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  *
  21  */
  22
  23 package com.owncloud.android.providers;
  24
  25 import java.io.File;
  26 import java.security.Provider;
  27 import java.util.ArrayList;
  28 import java.util.HashMap;
  29
  30 import com.owncloud.android.MainApp;
  31 import com.owncloud.android.R;
  32 import com.owncloud.android.datamodel.OCFile;
  33 import com.owncloud.android.db.ProviderMeta;
  34 import com.owncloud.android.db.ProviderMeta.ProviderTableMeta;
  35 import com.owncloud.android.lib.common.accounts.AccountUtils;
  36 import com.owncloud.android.lib.common.utils.Log_OC;
  37 import com.owncloud.android.lib.resources.shares.ShareType;
  38 import com.owncloud.android.utils.FileStorageUtils;
  39
  40 import android.accounts.Account;
  41 import android.accounts.AccountManager;
  42 import android.content.ContentProvider;
  43 import android.content.ContentProviderOperation;
  44 import android.content.ContentProviderResult;
  45 import android.content.ContentUris;
  46 import android.content.ContentValues;
  47 import android.content.Context;
  48 import android.content.OperationApplicationException;
  49 import android.content.UriMatcher;
  50 import android.database.Cursor;
  51 import android.database.SQLException;
  52 import android.database.sqlite.SQLiteDatabase;
  53 import android.database.sqlite.SQLiteOpenHelper;
  54 import android.database.sqlite.SQLiteQueryBuilder;
  55 import android.net.Uri;
  56 import android.text.TextUtils;
  57
  58 /**
  59  * The ContentProvider for the ownCloud App.
  60  */
  61 public class FileContentProvider extends ContentProvider {
  62
  63     private DataBaseHelper mDbHelper;
  64
  65     // Projection for filelist table
  66     private static HashMap<String, String> mFileProjectionMap;
  67     static {
  68         mFileProjectionMap = new HashMap<String, String>();
  69         mFileProjectionMap.put(ProviderTableMeta._ID, ProviderTableMeta._ID);
  70         mFileProjectionMap.put(ProviderTableMeta.FILE_PARENT,
  71                 ProviderTableMeta.FILE_PARENT);
  72         mFileProjectionMap.put(ProviderTableMeta.FILE_PATH,
  73                 ProviderTableMeta.FILE_PATH);
  74         mFileProjectionMap.put(ProviderTableMeta.FILE_NAME,
  75                 ProviderTableMeta.FILE_NAME);
  76         mFileProjectionMap.put(ProviderTableMeta.FILE_CREATION,
  77                 ProviderTableMeta.FILE_CREATION);
  78         mFileProjectionMap.put(ProviderTableMeta.FILE_MODIFIED,
  79                 ProviderTableMeta.FILE_MODIFIED);
  80         mFileProjectionMap.put(ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA,
  81                 ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA);
  82         mFileProjectionMap.put(ProviderTableMeta.FILE_CONTENT_LENGTH,
  83                 ProviderTableMeta.FILE_CONTENT_LENGTH);
  84         mFileProjectionMap.put(ProviderTableMeta.FILE_CONTENT_TYPE,
  85                 ProviderTableMeta.FILE_CONTENT_TYPE);
  86         mFileProjectionMap.put(ProviderTableMeta.FILE_STORAGE_PATH,
  87                 ProviderTableMeta.FILE_STORAGE_PATH);
  88         mFileProjectionMap.put(ProviderTableMeta.FILE_LAST_SYNC_DATE,
  89                 ProviderTableMeta.FILE_LAST_SYNC_DATE);
  90         mFileProjectionMap.put(ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA,
  91                 ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA);
  92         mFileProjectionMap.put(ProviderTableMeta.FILE_KEEP_IN_SYNC,
  93                 ProviderTableMeta.FILE_KEEP_IN_SYNC);
  94         mFileProjectionMap.put(ProviderTableMeta.FILE_ACCOUNT_OWNER,
  95                 ProviderTableMeta.FILE_ACCOUNT_OWNER);
  96         mFileProjectionMap.put(ProviderTableMeta.FILE_ETAG,
  97                 ProviderTableMeta.FILE_ETAG);
  98         mFileProjectionMap.put(ProviderTableMeta.FILE_SHARE_BY_LINK,
  99                 ProviderTableMeta.FILE_SHARE_BY_LINK);
 100         mFileProjectionMap.put(ProviderTableMeta.FILE_PUBLIC_LINK,
 101                 ProviderTableMeta.FILE_PUBLIC_LINK);
 102         mFileProjectionMap.put(ProviderTableMeta.FILE_PERMISSIONS,
 103                 ProviderTableMeta.FILE_PERMISSIONS);
 104         mFileProjectionMap.put(ProviderTableMeta.FILE_REMOTE_ID,
 105                 ProviderTableMeta.FILE_REMOTE_ID);
 106         mFileProjectionMap.put(ProviderTableMeta.FILE_UPDATE_THUMBNAIL,
 107                 ProviderTableMeta.FILE_UPDATE_THUMBNAIL);
 108         mFileProjectionMap.put(ProviderTableMeta.FILE_IS_DOWNLOADING,
 109                 ProviderTableMeta.FILE_IS_DOWNLOADING);
 110     }
 111
 112     private static final int SINGLE_FILE = 1;
 113     private static final int DIRECTORY = 2;
 114     private static final int ROOT_DIRECTORY = 3;
 115     private static final int SHARES = 4;
 116
 117     private static final String TAG = FileContentProvider.class.getSimpleName();
 118
 119     // Projection for ocshares table
 120     private static HashMap<String, String> mOCSharesProjectionMap;
 121     static {
 122         mOCSharesProjectionMap = new HashMap<String, String>();
 123         mOCSharesProjectionMap.put(ProviderTableMeta._ID, ProviderTableMeta._ID);
 124         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_FILE_SOURCE,
 125                 ProviderTableMeta.OCSHARES_FILE_SOURCE);
 126         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ITEM_SOURCE,
 127                 ProviderTableMeta.OCSHARES_ITEM_SOURCE);
 128         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_TYPE,
 129                 ProviderTableMeta.OCSHARES_SHARE_TYPE);
 130         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_WITH,
 131                 ProviderTableMeta.OCSHARES_SHARE_WITH);
 132         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_PATH,
 133                 ProviderTableMeta.OCSHARES_PATH);
 134         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_PERMISSIONS,
 135                 ProviderTableMeta.OCSHARES_PERMISSIONS);
 136         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARED_DATE,
 137                 ProviderTableMeta.OCSHARES_SHARED_DATE);
 138         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_EXPIRATION_DATE,
 139                 ProviderTableMeta.OCSHARES_EXPIRATION_DATE);
 140         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_TOKEN,
 141                 ProviderTableMeta.OCSHARES_TOKEN);
 142         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME,
 143                 ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME);
 144         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_IS_DIRECTORY,
 145                 ProviderTableMeta.OCSHARES_IS_DIRECTORY);
 146         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_USER_ID,
 147                 ProviderTableMeta.OCSHARES_USER_ID);
 148         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED,
 149                 ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED);
 150         mOCSharesProjectionMap.put(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER,
 151                 ProviderTableMeta.OCSHARES_ACCOUNT_OWNER);
 152     }
 153
 154     private UriMatcher mUriMatcher;
 155
 156     @Override
 157     public int delete(Uri uri, String where, String[] whereArgs) {
 158         //Log_OC.d(TAG, "Deleting " + uri + " at provider " + this);
 159         int count = 0;
 160         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 161         db.beginTransaction();
 162         try {
 163             count = delete(db, uri, where, whereArgs);
 164             db.setTransactionSuccessful();
 165         } finally {
 166             db.endTransaction();
 167         }
 168         getContext().getContentResolver().notifyChange(uri, null);
 169         return count;
 170     }
 171
 172     private int delete(SQLiteDatabase db, Uri uri, String where, String[] whereArgs) {
 173         int count = 0;
 174         switch (mUriMatcher.match(uri)) {
 175         case SINGLE_FILE:
 176             Cursor c = query(db, uri, null, where, whereArgs, null);
 177             String remoteId = "";
 178             if (c != null && c.moveToFirst()) {
 179                 remoteId = c.getString(c.getColumnIndex(ProviderTableMeta.FILE_REMOTE_ID));
 180                 //ThumbnailsCacheManager.removeFileFromCache(remoteId);
 181                 c.close();
 182             }
 183             Log_OC.d(TAG, "Removing FILE " + remoteId);
 184
 185             count = db.delete(ProviderTableMeta.FILE_TABLE_NAME,
 186                     ProviderTableMeta._ID
 187                             + "="
 188                             + uri.getPathSegments().get(1)
 189                             + (!TextUtils.isEmpty(where) ? " AND (" + where
 190                                     + ")" : ""), whereArgs);
 191             break;
 192         case DIRECTORY:
 193             // deletion of folder is recursive
 194             /*
 195             Uri folderUri = ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, Long.parseLong(uri.getPathSegments().get(1)));
 196             Cursor folder = query(db, folderUri, null, null, null, null);
 197             String folderName = "(unknown)";
 198             if (folder != null && folder.moveToFirst()) {
 199                 folderName = folder.getString(folder.getColumnIndex(ProviderTableMeta.FILE_PATH));
 200             }
 201             */
 202             Cursor children = query(uri, null, null, null, null);
 203             if (children != null && children.moveToFirst())  {
 204                 long childId;
 205                 boolean isDir;
 206                 while (!children.isAfterLast()) {
 207                     childId = children.getLong(children.getColumnIndex(ProviderTableMeta._ID));
 208                     isDir = "DIR".equals(children.getString(
 209                             children.getColumnIndex(ProviderTableMeta.FILE_CONTENT_TYPE)
 210                     ));
 211                     //remotePath = children.getString(children.getColumnIndex(ProviderTableMeta.FILE_PATH));
 212                     if (isDir) {
 213                         count += delete(
 214                             db,
 215                             ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_DIR, childId),
 216                             null,
 217                             null
 218                         );
 219                     } else {
 220                         count += delete(
 221                             db,
 222                             ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, childId),
 223                             null,
 224                             null
 225                         );
 226                     }
 227                     children.moveToNext();
 228                 }
 229                 children.close();
 230             } /*else {
 231                 Log_OC.d(TAG, "No child to remove in DIRECTORY " + folderName);
 232             }
 233             Log_OC.d(TAG, "Removing DIRECTORY " + folderName + " (or maybe not) ");
 234             */
 235             count += db.delete(ProviderTableMeta.FILE_TABLE_NAME,
 236                     ProviderTableMeta._ID
 237                     + "="
 238                     + uri.getPathSegments().get(1)
 239                     + (!TextUtils.isEmpty(where) ? " AND (" + where
 240                             + ")" : ""), whereArgs);
 241             /* Just for log
 242              if (folder != null) {
 243                 folder.close();
 244             }*/
 245             break;
 246         case ROOT_DIRECTORY:
 247             //Log_OC.d(TAG, "Removing ROOT!");
 248             count = db.delete(ProviderTableMeta.FILE_TABLE_NAME, where, whereArgs);
 249             break;
 250         case SHARES:
 251             count = db.delete(ProviderTableMeta.OCSHARES_TABLE_NAME, where, whereArgs);
 252             break;
 253         default:
 254             //Log_OC.e(TAG, "Unknown uri " + uri);
 255             throw new IllegalArgumentException("Unknown uri: " + uri.toString());
 256         }
 257         return count;
 258     }
 259
 260     @Override
 261     public String getType(Uri uri) {
 262         switch (mUriMatcher.match(uri)) {
 263         case ROOT_DIRECTORY:
 264             return ProviderTableMeta.CONTENT_TYPE;
 265         case SINGLE_FILE:
 266             return ProviderTableMeta.CONTENT_TYPE_ITEM;
 267         default:
 268             throw new IllegalArgumentException("Unknown Uri id."
 269                     + uri.toString());
 270         }
 271     }
 272
 273     @Override
 274     public Uri insert(Uri uri, ContentValues values) {
 275         Uri newUri = null;
 276         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 277         db.beginTransaction();
 278         try {
 279             newUri = insert(db, uri, values);
 280             db.setTransactionSuccessful();
 281         } finally {
 282             db.endTransaction();
 283         }
 284         getContext().getContentResolver().notifyChange(newUri, null);
 285         return newUri;
 286     }
 287
 288     private Uri insert(SQLiteDatabase db, Uri uri, ContentValues values) {
 289         switch (mUriMatcher.match(uri)){
 290         case ROOT_DIRECTORY:
 291         case SINGLE_FILE:
 292             String remotePath = values.getAsString(ProviderTableMeta.FILE_PATH);
 293             String accountName = values.getAsString(ProviderTableMeta.FILE_ACCOUNT_OWNER);
 294             String[] projection = new String[] {
 295                     ProviderTableMeta._ID, ProviderTableMeta.FILE_PATH,
 296                     ProviderTableMeta.FILE_ACCOUNT_OWNER
 297             };
 298             String where = ProviderTableMeta.FILE_PATH + "=? AND " +
 299                     ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
 300             String[] whereArgs = new String[] {remotePath, accountName};
 301             Cursor doubleCheck = query(db, uri, projection, where, whereArgs, null);
 302             // ugly patch; serious refactorization is needed to reduce work in
 303             // FileDataStorageManager and bring it to FileContentProvider
 304             if (doubleCheck == null || !doubleCheck.moveToFirst()) {
 305                 if (doubleCheck != null) {
 306                     doubleCheck.close();
 307                 }
 308                 long rowId = db.insert(ProviderTableMeta.FILE_TABLE_NAME, null, values);
 309                 if (rowId > 0) {
 310                     Uri insertedFileUri =
 311                             ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_FILE, rowId);
 312                     return insertedFileUri;
 313                 } else {
 314                     throw new SQLException("ERROR " + uri);
 315                 }
 316             } else {
 317                 // file is already inserted; race condition, let's avoid a duplicated entry
 318                 Uri insertedFileUri = ContentUris.withAppendedId(
 319                         ProviderTableMeta.CONTENT_URI_FILE,
 320                         doubleCheck.getLong(doubleCheck.getColumnIndex(ProviderTableMeta._ID))
 321                 );
 322                 doubleCheck.close();
 323
 324                 return insertedFileUri;
 325             }
 326
 327         case SHARES:
 328             String path = values.getAsString(ProviderTableMeta.OCSHARES_PATH);
 329             String accountNameShare= values.getAsString(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER);
 330             String[] projectionShare = new String[] {
 331                     ProviderTableMeta._ID, ProviderTableMeta.OCSHARES_PATH,
 332                     ProviderTableMeta.OCSHARES_ACCOUNT_OWNER
 333             };
 334             String whereShare = ProviderTableMeta.OCSHARES_PATH + "=? AND " +
 335                     ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + "=?";
 336             String[] whereArgsShare = new String[] {path, accountNameShare};
 337             Uri insertedShareUri = null;
 338             Cursor doubleCheckShare =
 339                     query(db, uri, projectionShare, whereShare, whereArgsShare, null);
 340             // ugly patch; serious refactorization is needed to reduce work in
 341             // FileDataStorageManager and bring it to FileContentProvider
 342             if (doubleCheckShare == null || !doubleCheckShare.moveToFirst()) {
 343                 if (doubleCheckShare != null) {
 344                     doubleCheckShare.close();
 345                 }
 346                 long rowId = db.insert(ProviderTableMeta.OCSHARES_TABLE_NAME, null, values);
 347                 if (rowId >0) {
 348                     insertedShareUri =
 349                             ContentUris.withAppendedId(ProviderTableMeta.CONTENT_URI_SHARE, rowId);
 350                 } else {
 351                     throw new SQLException("ERROR " + uri);
 352
 353                 }
 354             } else {
 355                 // file is already inserted; race condition, let's avoid a duplicated entry
 356                 insertedShareUri = ContentUris.withAppendedId(
 357                         ProviderTableMeta.CONTENT_URI_SHARE,
 358                         doubleCheckShare.getLong(
 359                                 doubleCheckShare.getColumnIndex(ProviderTableMeta._ID)
 360                         )
 361                 );
 362                 doubleCheckShare.close();
 363             }
 364             updateFilesTableAccordingToShareInsertion(db, uri, values);
 365             return insertedShareUri;
 366
 367
 368         default:
 369             throw new IllegalArgumentException("Unknown uri id: " + uri);
 370         }
 371
 372     }
 373
 374     private void updateFilesTableAccordingToShareInsertion(
 375             SQLiteDatabase db, Uri uri, ContentValues shareValues
 376             ) {
 377         ContentValues fileValues = new ContentValues();
 378         fileValues.put(
 379                 ProviderTableMeta.FILE_SHARE_BY_LINK,
 380                 ShareType.PUBLIC_LINK.getValue() ==
 381                         shareValues.getAsInteger(ProviderTableMeta.OCSHARES_SHARE_TYPE) ? 1 : 0
 382         );
 383         String whereShare = ProviderTableMeta.FILE_PATH + "=? AND " +
 384                 ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?";
 385         String[] whereArgsShare = new String[] {
 386                 shareValues.getAsString(ProviderTableMeta.OCSHARES_PATH),
 387                 shareValues.getAsString(ProviderTableMeta.OCSHARES_ACCOUNT_OWNER)
 388         };
 389         db.update(ProviderTableMeta.FILE_TABLE_NAME, fileValues, whereShare, whereArgsShare);
 390     }
 391
 392
 393     @Override
 394     public boolean onCreate() {
 395         mDbHelper = new DataBaseHelper(getContext());
 396
 397         String authority = getContext().getResources().getString(R.string.authority);
 398         mUriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
 399         mUriMatcher.addURI(authority, null, ROOT_DIRECTORY);
 400         mUriMatcher.addURI(authority, "file/", SINGLE_FILE);
 401         mUriMatcher.addURI(authority, "file/#", SINGLE_FILE);
 402         mUriMatcher.addURI(authority, "dir/", DIRECTORY);
 403         mUriMatcher.addURI(authority, "dir/#", DIRECTORY);
 404         mUriMatcher.addURI(authority, "shares/", SHARES);
 405         mUriMatcher.addURI(authority, "shares/#", SHARES);
 406
 407         return true;
 408     }
 409
 410
 411     @Override
 412     public Cursor query(
 413             Uri uri,
 414             String[] projection,
 415             String selection,
 416             String[] selectionArgs,
 417             String sortOrder
 418         ) {
 419
 420         Cursor result = null;
 421         SQLiteDatabase db = mDbHelper.getReadableDatabase();
 422         db.beginTransaction();
 423         try {
 424             result = query(db, uri, projection, selection, selectionArgs, sortOrder);
 425             db.setTransactionSuccessful();
 426         } finally {
 427             db.endTransaction();
 428         }
 429         return result;
 430     }
 431
 432     private Cursor query(
 433             SQLiteDatabase db,
 434             Uri uri,
 435             String[] projection,
 436             String selection,
 437             String[] selectionArgs,
 438             String sortOrder
 439         ) {
 440
 441         SQLiteQueryBuilder sqlQuery = new SQLiteQueryBuilder();
 442
 443         sqlQuery.setTables(ProviderTableMeta.FILE_TABLE_NAME);
 444         sqlQuery.setProjectionMap(mFileProjectionMap);
 445
 446         switch (mUriMatcher.match(uri)) {
 447         case ROOT_DIRECTORY:
 448             break;
 449         case DIRECTORY:
 450             String folderId = uri.getPathSegments().get(1);
 451             sqlQuery.appendWhere(ProviderTableMeta.FILE_PARENT + "="
 452                     + folderId);
 453             break;
 454         case SINGLE_FILE:
 455             if (uri.getPathSegments().size() > 1) {
 456                 sqlQuery.appendWhere(ProviderTableMeta._ID + "="
 457                         + uri.getPathSegments().get(1));
 458             }
 459             break;
 460         case SHARES:
 461             sqlQuery.setTables(ProviderTableMeta.OCSHARES_TABLE_NAME);
 462             sqlQuery.setProjectionMap(mOCSharesProjectionMap);
 463             if (uri.getPathSegments().size() > 1) {
 464                 sqlQuery.appendWhere(ProviderTableMeta._ID + "="
 465                         + uri.getPathSegments().get(1));
 466             }
 467             break;
 468         default:
 469             throw new IllegalArgumentException("Unknown uri id: " + uri);
 470         }
 471
 472         String order;
 473         if (TextUtils.isEmpty(sortOrder)) {
 474             if (mUriMatcher.match(uri) == SHARES) {
 475                 order = ProviderTableMeta.OCSHARES_DEFAULT_SORT_ORDER;
 476             } else {
 477
 478                 order = ProviderTableMeta.FILE_DEFAULT_SORT_ORDER;
 479             }
 480         } else {
 481             order = sortOrder;
 482         }
 483
 484         // DB case_sensitive
 485         db.execSQL("PRAGMA case_sensitive_like = true");
 486         Cursor c = sqlQuery.query(db, projection, selection, selectionArgs, null, null, order);
 487         c.setNotificationUri(getContext().getContentResolver(), uri);
 488         return c;
 489     }
 490
 491     @Override
 492     public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
 493
 494         int count = 0;
 495         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 496         db.beginTransaction();
 497         try {
 498             count = update(db, uri, values, selection, selectionArgs);
 499             db.setTransactionSuccessful();
 500         } finally {
 501             db.endTransaction();
 502         }
 503         getContext().getContentResolver().notifyChange(uri, null);
 504         return count;
 505     }
 506
 507
 508
 509     private int update(
 510             SQLiteDatabase db,
 511             Uri uri,
 512             ContentValues values,
 513             String selection,
 514             String[] selectionArgs
 515         ) {
 516         switch (mUriMatcher.match(uri)) {
 517             case DIRECTORY:
 518                 return  0; //updateFolderSize(db, selectionArgs[0]);
 519             case SHARES:
 520                 return db.update(
 521                         ProviderTableMeta.OCSHARES_TABLE_NAME, values, selection, selectionArgs
 522                 );
 523             default:
 524                 return db.update(
 525                         ProviderTableMeta.FILE_TABLE_NAME, values, selection, selectionArgs
 526                 );
 527         }
 528     }
 529
 530  /*
 531     private int updateFolderSize(SQLiteDatabase db, String folderId) {
 532         int count = 0;
 533         String [] whereArgs = new String[] { folderId };
 534
 535         // read current size saved for the folder
 536         long folderSize = 0;
 537         long folderParentId = -1;
 538         Uri selectFolderUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_FILE, folderId);
 539         String[] folderProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
 540         String folderWhere = ProviderTableMeta._ID + "=?";
 541         Cursor folderCursor = query(db, selectFolderUri, folderProjection, folderWhere, whereArgs, null);
 542         if (folderCursor != null && folderCursor.moveToFirst()) {
 543             folderSize = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));;
 544             folderParentId = folderCursor.getLong(folderCursor.getColumnIndex(ProviderTableMeta.FILE_PARENT));;
 545         }
 546         folderCursor.close();
 547
 548         // read and sum sizes of children
 549         long childrenSize = 0;
 550         Uri selectChildrenUri = Uri.withAppendedPath(ProviderTableMeta.CONTENT_URI_DIR, folderId);
 551         String[] childrenProjection = new String[] { ProviderTableMeta.FILE_CONTENT_LENGTH,  ProviderTableMeta.FILE_PARENT};
 552         String childrenWhere = ProviderTableMeta.FILE_PARENT + "=?";
 553         Cursor childrenCursor = query(db, selectChildrenUri, childrenProjection, childrenWhere, whereArgs, null);
 554         if (childrenCursor != null && childrenCursor.moveToFirst()) {
 555             while (!childrenCursor.isAfterLast()) {
 556                 childrenSize += childrenCursor.getLong(childrenCursor.getColumnIndex(ProviderTableMeta.FILE_CONTENT_LENGTH));
 557                 childrenCursor.moveToNext();
 558             }
 559         }
 560         childrenCursor.close();
 561
 562         // update if needed
 563         if (folderSize != childrenSize) {
 564             Log_OC.d("FileContentProvider", "Updating " + folderSize + " to " + childrenSize);
 565             ContentValues cv = new ContentValues();
 566             cv.put(ProviderTableMeta.FILE_CONTENT_LENGTH, childrenSize);
 567             count = db.update(ProviderTableMeta.FILE_TABLE_NAME, cv, folderWhere, whereArgs);
 568
 569             // propagate update until root
 570             if (folderParentId > FileDataStorageManager.ROOT_PARENT_ID) {
 571                 Log_OC.d("FileContentProvider", "Propagating update to " + folderParentId);
 572                 updateFolderSize(db, String.valueOf(folderParentId));
 573             } else {
 574                 Log_OC.d("FileContentProvider", "NOT propagating to " + folderParentId);
 575             }
 576         } else {
 577             Log_OC.d("FileContentProvider", "NOT updating, sizes are " + folderSize + " and " + childrenSize);
 578         }
 579         return count;
 580     }
 581 */
 582
 583     @Override
 584     public ContentProviderResult[] applyBatch (ArrayList<ContentProviderOperation> operations)
 585             throws OperationApplicationException {
 586         Log_OC.d("FileContentProvider", "applying batch in provider " + this +
 587                 " (temporary: " + isTemporary() + ")" );
 588         ContentProviderResult[] results = new ContentProviderResult[operations.size()];
 589         int i=0;
 590
 591         SQLiteDatabase db = mDbHelper.getWritableDatabase();
 592         db.beginTransaction();  // it's supposed that transactions can be nested
 593         try {
 594             for (ContentProviderOperation operation : operations) {
 595                 results[i] = operation.apply(this, results, i);
 596                 i++;
 597             }
 598             db.setTransactionSuccessful();
 599         } finally {
 600             db.endTransaction();
 601         }
 602         Log_OC.d("FileContentProvider", "applied batch in provider " + this);
 603         return results;
 604     }
 605
 606
 607     class DataBaseHelper extends SQLiteOpenHelper {
 608
 609         public DataBaseHelper(Context context) {
 610             super(context, ProviderMeta.DB_NAME, null, ProviderMeta.DB_VERSION);
 611
 612         }
 613
 614         @Override
 615         public void onCreate(SQLiteDatabase db) {
 616             // files table
 617             Log_OC.i("SQL", "Entering in onCreate");
 618             db.execSQL("CREATE TABLE " + ProviderTableMeta.FILE_TABLE_NAME + "("
 619                     + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 620                     + ProviderTableMeta.FILE_NAME + " TEXT, "
 621                     + ProviderTableMeta.FILE_PATH + " TEXT, "
 622                     + ProviderTableMeta.FILE_PARENT + " INTEGER, "
 623                     + ProviderTableMeta.FILE_CREATION + " INTEGER, "
 624                     + ProviderTableMeta.FILE_MODIFIED + " INTEGER, "
 625                     + ProviderTableMeta.FILE_CONTENT_TYPE + " TEXT, "
 626                     + ProviderTableMeta.FILE_CONTENT_LENGTH + " INTEGER, "
 627                     + ProviderTableMeta.FILE_STORAGE_PATH + " TEXT, "
 628                     + ProviderTableMeta.FILE_ACCOUNT_OWNER + " TEXT, "
 629                     + ProviderTableMeta.FILE_LAST_SYNC_DATE + " INTEGER, "
 630                     + ProviderTableMeta.FILE_KEEP_IN_SYNC + " INTEGER, "
 631                     + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA + " INTEGER, "
 632                     + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA + " INTEGER, "
 633                     + ProviderTableMeta.FILE_ETAG + " TEXT, "
 634                     + ProviderTableMeta.FILE_SHARE_BY_LINK + " INTEGER, "
 635                     + ProviderTableMeta.FILE_PUBLIC_LINK  + " TEXT, "
 636                     + ProviderTableMeta.FILE_PERMISSIONS  + " TEXT null,"
 637                     + ProviderTableMeta.FILE_REMOTE_ID  + " TEXT null,"
 638                     + ProviderTableMeta.FILE_UPDATE_THUMBNAIL  + " INTEGER," //boolean
 639                     + ProviderTableMeta.FILE_IS_DOWNLOADING  + " INTEGER);" //boolean
 640                     );
 641
 642             // Create table ocshares
 643             db.execSQL("CREATE TABLE " + ProviderTableMeta.OCSHARES_TABLE_NAME + "("
 644                     + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 645                     + ProviderTableMeta.OCSHARES_FILE_SOURCE + " INTEGER, "
 646                     + ProviderTableMeta.OCSHARES_ITEM_SOURCE + " INTEGER, "
 647                     + ProviderTableMeta.OCSHARES_SHARE_TYPE + " INTEGER, "
 648                     + ProviderTableMeta.OCSHARES_SHARE_WITH + " TEXT, "
 649                     + ProviderTableMeta.OCSHARES_PATH + " TEXT, "
 650                     + ProviderTableMeta.OCSHARES_PERMISSIONS+ " INTEGER, "
 651                     + ProviderTableMeta.OCSHARES_SHARED_DATE + " INTEGER, "
 652                     + ProviderTableMeta.OCSHARES_EXPIRATION_DATE + " INTEGER, "
 653                     + ProviderTableMeta.OCSHARES_TOKEN + " TEXT, "
 654                     + ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME + " TEXT, "
 655                     + ProviderTableMeta.OCSHARES_IS_DIRECTORY + " INTEGER, "  // boolean
 656                     + ProviderTableMeta.OCSHARES_USER_ID + " INTEGER, "
 657                     + ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + " INTEGER,"
 658                     + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + " TEXT );" );
 659         }
 660
 661         @Override
 662         public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
 663             Log_OC.i("SQL", "Entering in onUpgrade");
 664             boolean upgraded = false;
 665             if (oldVersion == 1 && newVersion >= 2) {
 666                 Log_OC.i("SQL", "Entering in the #1 ADD in onUpgrade");
 667                 db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 668                            " ADD COLUMN " + ProviderTableMeta.FILE_KEEP_IN_SYNC  + " INTEGER " +
 669                            " DEFAULT 0");
 670                 upgraded = true;
 671             }
 672             if (oldVersion < 3 && newVersion >= 3) {
 673                 Log_OC.i("SQL", "Entering in the #2 ADD in onUpgrade");
 674                 db.beginTransaction();
 675                 try {
 676                     db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 677                                " ADD COLUMN " + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA  +
 678                                " INTEGER " + " DEFAULT 0");
 679
 680                     // assume there are not local changes pending to upload
 681                     db.execSQL("UPDATE " + ProviderTableMeta.FILE_TABLE_NAME +
 682                             " SET " + ProviderTableMeta.FILE_LAST_SYNC_DATE_FOR_DATA + " = "
 683                             + System.currentTimeMillis() +
 684                             " WHERE " + ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL");
 685
 686                     upgraded = true;
 687                     db.setTransactionSuccessful();
 688                 } finally {
 689                     db.endTransaction();
 690                 }
 691             }
 692             if (oldVersion < 4 && newVersion >= 4) {
 693                 Log_OC.i("SQL", "Entering in the #3 ADD in onUpgrade");
 694                 db.beginTransaction();
 695                 try {
 696                     db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 697                             " ADD COLUMN " + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA +
 698                             " INTEGER " + " DEFAULT 0");
 699
 700                     db.execSQL("UPDATE " + ProviderTableMeta.FILE_TABLE_NAME +
 701                            " SET " + ProviderTableMeta.FILE_MODIFIED_AT_LAST_SYNC_FOR_DATA + " = " +
 702                             ProviderTableMeta.FILE_MODIFIED +
 703                            " WHERE " + ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL");
 704
 705                     upgraded = true;
 706                     db.setTransactionSuccessful();
 707                 } finally {
 708                     db.endTransaction();
 709                 }
 710             }
 711             if (!upgraded)
 712                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion +
 713                         ", newVersion == " + newVersion);
 714
 715             if (oldVersion < 5 && newVersion >= 5) {
 716                 Log_OC.i("SQL", "Entering in the #4 ADD in onUpgrade");
 717                 db.beginTransaction();
 718                 try {
 719                     db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 720                             " ADD COLUMN " + ProviderTableMeta.FILE_ETAG + " TEXT " +
 721                             " DEFAULT NULL");
 722
 723                     upgraded = true;
 724                     db.setTransactionSuccessful();
 725                 } finally {
 726                     db.endTransaction();
 727                 }
 728             }
 729             if (!upgraded)
 730                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion +
 731                         ", newVersion == " + newVersion);
 732
 733             if (oldVersion < 6 && newVersion >= 6) {
 734                 Log_OC.i("SQL", "Entering in the #5 ADD in onUpgrade");
 735                 db.beginTransaction();
 736                 try {
 737                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 738                             " ADD COLUMN " + ProviderTableMeta.FILE_SHARE_BY_LINK + " INTEGER " +
 739                             " DEFAULT 0");
 740
 741                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 742                             " ADD COLUMN " + ProviderTableMeta.FILE_PUBLIC_LINK + " TEXT " +
 743                             " DEFAULT NULL");
 744
 745                     // Create table ocshares
 746                     db.execSQL("CREATE TABLE " + ProviderTableMeta.OCSHARES_TABLE_NAME + "("
 747                             + ProviderTableMeta._ID + " INTEGER PRIMARY KEY, "
 748                             + ProviderTableMeta.OCSHARES_FILE_SOURCE + " INTEGER, "
 749                             + ProviderTableMeta.OCSHARES_ITEM_SOURCE + " INTEGER, "
 750                             + ProviderTableMeta.OCSHARES_SHARE_TYPE + " INTEGER, "
 751                             + ProviderTableMeta.OCSHARES_SHARE_WITH + " TEXT, "
 752                             + ProviderTableMeta.OCSHARES_PATH + " TEXT, "
 753                             + ProviderTableMeta.OCSHARES_PERMISSIONS + " INTEGER, "
 754                             + ProviderTableMeta.OCSHARES_SHARED_DATE + " INTEGER, "
 755                             + ProviderTableMeta.OCSHARES_EXPIRATION_DATE + " INTEGER, "
 756                             + ProviderTableMeta.OCSHARES_TOKEN + " TEXT, "
 757                             + ProviderTableMeta.OCSHARES_SHARE_WITH_DISPLAY_NAME + " TEXT, "
 758                             + ProviderTableMeta.OCSHARES_IS_DIRECTORY + " INTEGER, "  // boolean
 759                             + ProviderTableMeta.OCSHARES_USER_ID + " INTEGER, "
 760                             + ProviderTableMeta.OCSHARES_ID_REMOTE_SHARED + " INTEGER,"
 761                             + ProviderTableMeta.OCSHARES_ACCOUNT_OWNER + " TEXT );");
 762
 763                     upgraded = true;
 764                     db.setTransactionSuccessful();
 765                 } finally {
 766                     db.endTransaction();
 767                 }
 768             }
 769             if (!upgraded)
 770                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion +
 771                         ", newVersion == " + newVersion);
 772
 773             if (oldVersion < 7 && newVersion >= 7) {
 774                 Log_OC.i("SQL", "Entering in the #7 ADD in onUpgrade");
 775                 db.beginTransaction();
 776                 try {
 777                     db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 778                             " ADD COLUMN " + ProviderTableMeta.FILE_PERMISSIONS + " TEXT " +
 779                             " DEFAULT NULL");
 780
 781                     db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 782                             " ADD COLUMN " + ProviderTableMeta.FILE_REMOTE_ID + " TEXT " +
 783                             " DEFAULT NULL");
 784
 785                     upgraded = true;
 786                     db.setTransactionSuccessful();
 787                 } finally {
 788                     db.endTransaction();
 789                 }
 790             }
 791             if (!upgraded)
 792                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion +
 793                         ", newVersion == " + newVersion);
 794
 795             if (oldVersion < 8 && newVersion >= 8) {
 796                 Log_OC.i("SQL", "Entering in the #8 ADD in onUpgrade");
 797                 db.beginTransaction();
 798                 try {
 799                     db.execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 800                             " ADD COLUMN " + ProviderTableMeta.FILE_UPDATE_THUMBNAIL + " INTEGER " +
 801                             " DEFAULT 0");
 802
 803                     upgraded = true;
 804                     db.setTransactionSuccessful();
 805                 } finally {
 806                     db.endTransaction();
 807                 }
 808             }
 809             if (!upgraded)
 810                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion +
 811                         ", newVersion == " + newVersion);
 812
 813             if (oldVersion < 9 && newVersion >= 9) {
 814                 Log_OC.i("SQL", "Entering in the #9 ADD in onUpgrade");
 815                 db.beginTransaction();
 816                 try {
 817                     db .execSQL("ALTER TABLE " + ProviderTableMeta.FILE_TABLE_NAME +
 818                             " ADD COLUMN " + ProviderTableMeta.FILE_IS_DOWNLOADING + " INTEGER " +
 819                             " DEFAULT 0");
 820
 821                     upgraded = true;
 822                     db.setTransactionSuccessful();
 823                 } finally {
 824                     db.endTransaction();
 825                 }
 826             }
 827             if (!upgraded)
 828                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion +
 829                         ", newVersion == " + newVersion);
 830
 831             if (oldVersion < 10 && newVersion >= 10) {
 832                 Log_OC.i("SQL", "Entering in the #10 ADD in onUpgrade");
 833                 updateAccountName(db);
 834                 upgraded = true;
 835             }
 836              if (!upgraded)
 837                 Log_OC.i("SQL", "OUT of the ADD in onUpgrade; oldVersion == " + oldVersion +
 838                         ", newVersion == " + newVersion);
 839         }
 840     }
 841
 842
 843     /**
 844      * Version 10 of database does not modify its scheme. It coincides with the upgrade of the ownCloud account names
 845      * structure to include in it the path to the server instance. Updating the account names and path to local files
 846      * in the files table is a must to keep the existing account working and the database clean.
 847      *
 848      * See {@link com.owncloud.android.authentication.AccountUtils#updateAccountVersion(android.content.Context)}
 849      *
 850      * @param db        Database where table of files is included.
 851      */
 852     private void updateAccountName(SQLiteDatabase db){
 853         Log_OC.d("SQL", "THREAD:  "+ Thread.currentThread().getName());
 854         AccountManager ama = AccountManager.get(getContext());
 855         try {
 856             // get accounts from AccountManager ;  we can't be sure if accounts in it are updated or not although
 857             // we know the update was previously done in {link @FileActivity#onCreate} because the changes through
 858             // AccountManager are not synchronous
 859             Account[] accounts = AccountManager.get(getContext()).getAccountsByType(
 860                     MainApp.getAccountType());
 861             String serverUrl, username, oldAccountName, newAccountName;
 862                         for (Account account : accounts) {
 863                 // build both old and new account name
 864                 serverUrl = ama.getUserData(account, AccountUtils.Constants.KEY_OC_BASE_URL);
 865                 username = account.name.substring(0, account.name.lastIndexOf('@'));
 866                 oldAccountName = AccountUtils.buildAccountNameOld(Uri.parse(serverUrl), username);
 867                 newAccountName = AccountUtils.buildAccountName(Uri.parse(serverUrl), username);
 868
 869                 // update values in database
 870                 db.beginTransaction();
 871                 try {
 872                     ContentValues cv = new ContentValues();
 873                     cv.put(ProviderTableMeta.FILE_ACCOUNT_OWNER, newAccountName);
 874                     int num = db.update(ProviderTableMeta.FILE_TABLE_NAME,
 875                             cv,
 876                             ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?",
 877                             new String[]{oldAccountName});
 878
 879                     Log_OC.d("SQL", "Updated account in database: old name == " + oldAccountName +
 880                             ", new name == " + newAccountName + " (" + num + " rows updated )");
 881
 882                     // update path for downloaded files
 883                     updateDownloadedFiles(db, newAccountName, oldAccountName);
 884
 885                     db.setTransactionSuccessful();
 886
 887                 } catch (SQLException e) {
 888                     Log_OC.e(TAG, "SQL Exception upgrading account names or paths in database", e);
 889                 } finally {
 890                     db.endTransaction();
 891                 }
 892                         }
 893         } catch (Exception e) {
 894             Log_OC.e(TAG, "Exception upgrading account names or paths in database", e);
 895         }
 896     }
 897
 898
 899     /**
 900      * Rename the local ownCloud folder of one account to match the a rename of the account itself. Updates the
 901      * table of files in database so that the paths to the local files keep being the same.
 902      *
 903      * @param db                    Database where table of files is included.
 904      * @param newAccountName        New name for the target OC account.
 905      * @param oldAccountName        Old name of the target OC account.
 906      */
 907     private void updateDownloadedFiles(SQLiteDatabase db, String newAccountName,
 908                                        String oldAccountName) {
 909
 910         String whereClause = ProviderTableMeta.FILE_ACCOUNT_OWNER + "=? AND " +
 911                 ProviderTableMeta.FILE_STORAGE_PATH + " IS NOT NULL";
 912
 913         Cursor c = db.query(ProviderTableMeta.FILE_TABLE_NAME,
 914                 null,
 915                 whereClause,
 916                 new String[] { newAccountName },
 917                 null, null, null);
 918
 919         try {
 920             if (c.moveToFirst()) {
 921                 // create storage path
 922                 String oldAccountPath = FileStorageUtils.getSavePath(oldAccountName);
 923                 String newAccountPath = FileStorageUtils.getSavePath(newAccountName);
 924
 925                 // move files
 926                 File oldAccountFolder = new File(oldAccountPath);
 927                 File newAccountFolder = new File(newAccountPath);
 928                 oldAccountFolder.renameTo(newAccountFolder);
 929
 930                 // update database
 931                 do {
 932                     // Update database
 933                     String oldPath = c.getString(
 934                             c.getColumnIndex(ProviderTableMeta.FILE_STORAGE_PATH));
 935                     OCFile file = new OCFile(
 936                             c.getString(c.getColumnIndex(ProviderTableMeta.FILE_PATH)));
 937                     String newPath = FileStorageUtils.getDefaultSavePathFor(newAccountName, file);
 938
 939                     ContentValues cv = new ContentValues();
 940                     cv.put(ProviderTableMeta.FILE_STORAGE_PATH, newPath);
 941                     db.update(ProviderTableMeta.FILE_TABLE_NAME,
 942                             cv,
 943                             ProviderTableMeta.FILE_STORAGE_PATH + "=?",
 944                             new String[]{oldPath});
 945
 946                     Log_OC.v("SQL", "Updated path of downloaded file: old file name == " + oldPath +
 947                             ", new file name == " + newPath);
 948
 949                 } while (c.moveToNext());
 950             }
 951         } finally {
 952             c.close();
 953         }
 954
 955     }
 956
 957 }