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