src/com/owncloud/android/syncadapter/FileSyncAdapter.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2011  Bartek Przybylski
   3  *
   4  *   This program is free software: you can redistribute it and/or modify
   5  *   it under the terms of the GNU General Public License as published by
   6  *   the Free Software Foundation, either version 3 of the License, or
   7  *   (at your option) any later version.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.syncadapter;
  20
  21 import java.io.IOException;
  22 import java.util.List;
  23 import java.util.Vector;
  24
  25 import org.apache.http.HttpStatus;
  26 import org.apache.jackrabbit.webdav.DavException;
  27 import org.apache.jackrabbit.webdav.MultiStatus;
  28 import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
  29 import org.json.JSONObject;
  30
  31 import com.owncloud.android.AccountUtils;
  32 import com.owncloud.android.R;
  33 import com.owncloud.android.authenticator.AccountAuthenticator;
  34 import com.owncloud.android.datamodel.FileDataStorageManager;
  35 import com.owncloud.android.datamodel.OCFile;
  36 import com.owncloud.android.files.services.FileDownloader;
  37 import com.owncloud.android.utils.OwnCloudVersion;
  38
  39 import android.accounts.Account;
  40 import android.app.Notification;
  41 import android.app.NotificationManager;
  42 import android.app.PendingIntent;
  43 import android.content.ContentProviderClient;
  44 import android.content.ContentResolver;
  45 import android.content.Context;
  46 import android.content.Intent;
  47 import android.content.SyncResult;
  48 import android.os.Bundle;
  49 import android.util.Log;
  50 import eu.alefzero.webdav.WebdavEntry;
  51 import eu.alefzero.webdav.WebdavUtils;
  52
  53 /**
  54  * SyncAdapter implementation for syncing sample SyncAdapter contacts to the
  55  * platform ContactOperations provider.
  56  *
  57  * @author Bartek Przybylski
  58  */
  59 public class FileSyncAdapter extends AbstractOwnCloudSyncAdapter {
  60
  61     private final static String TAG = "FileSyncAdapter";
  62
  63     /*  Commented code for ugly performance tests
  64     private final static int MAX_DELAYS = 100;
  65     private static long[] mResponseDelays = new long[MAX_DELAYS];
  66     private static long[] mSaveDelays = new long[MAX_DELAYS];
  67     private int mDelaysIndex = 0;
  68     private int mDelaysCount = 0;
  69     */
  70
  71     private long mCurrentSyncTime;
  72     private boolean mCancellation;
  73     private boolean mIsManualSync;
  74     private boolean mRightSync;
  75
  76     public FileSyncAdapter(Context context, boolean autoInitialize) {
  77         super(context, autoInitialize);
  78     }
  79
  80     @Override
  81     public synchronized void onPerformSync(Account account, Bundle extras,
  82             String authority, ContentProviderClient provider,
  83             SyncResult syncResult) {
  84
  85         mCancellation = false;
  86         mIsManualSync = extras.getBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, false);
  87         mRightSync = true;
  88
  89         this.setAccount(account);
  90         this.setContentProvider(provider);
  91         this.setStorageManager(new FileDataStorageManager(account, getContentProvider()));
  92
  93         /*  Commented code for ugly performance tests
  94         mDelaysIndex = 0;
  95         mDelaysCount = 0;
  96         */
  97
  98         Log.d(TAG, "syncing owncloud account " + account.name);
  99
 100         sendStickyBroadcast(true, null);  // message to signal the start to the UI
 101
 102         updateOCVersion();
 103
 104         String uri = getUri().toString();
 105         PropFindMethod query = null;
 106         try {
 107             mCurrentSyncTime = System.currentTimeMillis();
 108             query = new PropFindMethod(uri + "/");
 109             int status = getClient().executeMethod(query);
 110             if (status != HttpStatus.SC_UNAUTHORIZED) {
 111                 MultiStatus resp = query.getResponseBodyAsMultiStatus();
 112
 113                 if (resp.getResponses().length > 0) {
 114                     WebdavEntry we = new WebdavEntry(resp.getResponses()[0], getUri().getPath());
 115                     OCFile file = fillOCFile(we);
 116                     file.setParentId(0);
 117                     getStorageManager().saveFile(file);
 118                     if (!mCancellation) {
 119                         fetchData(uri, syncResult, file.getFileId());
 120                     }
 121                 }
 122
 123             } else {
 124                 syncResult.stats.numAuthExceptions++;
 125             }
 126         } catch (IOException e) {
 127             syncResult.stats.numIoExceptions++;
 128             logException(e, uri + "/");
 129
 130         } catch (DavException e) {
 131             syncResult.stats.numParseExceptions++;
 132             logException(e, uri + "/");
 133
 134         } catch (Exception e) {
 135             // TODO something smart with syncresult
 136             logException(e, uri + "/");
 137             mRightSync = false;
 138
 139         } finally {
 140             if (query != null)
 141                 query.releaseConnection();  // let the connection available for other methods
 142             mRightSync &= (syncResult.stats.numIoExceptions == 0 && syncResult.stats.numAuthExceptions == 0 && syncResult.stats.numParseExceptions == 0);
 143             if (!mRightSync && mIsManualSync) {
 144                 /// don't let the system synchronization manager retries MANUAL synchronizations
 145                 //      (be careful: "MANUAL" currently includes the synchronization requested when a new account is created and when the user changes the current account)
 146                 syncResult.tooManyRetries = true;
 147
 148                 /// notify the user about the failure of MANUAL synchronization
 149                 Notification notification = new Notification(R.drawable.icon, getContext().getString(R.string.sync_fail_ticker), System.currentTimeMillis());
 150                 notification.flags |= Notification.FLAG_AUTO_CANCEL;
 151                 // TODO put something smart in the contentIntent below
 152                 notification.contentIntent = PendingIntent.getActivity(getContext().getApplicationContext(), 0, new Intent(), PendingIntent.FLAG_UPDATE_CURRENT);
 153                 notification.setLatestEventInfo(getContext().getApplicationContext(),
 154                                                 getContext().getString(R.string.sync_fail_ticker),
 155                                                 String.format(getContext().getString(R.string.sync_fail_content), account.name),
 156                                                 notification.contentIntent);
 157                 ((NotificationManager) getContext().getSystemService(Context.NOTIFICATION_SERVICE)).notify(R.string.sync_fail_ticker, notification);
 158             }
 159             sendStickyBroadcast(false, null);        // message to signal the end to the UI
 160         }
 161
 162         /*  Commented code for ugly performance tests
 163         long sum = 0, mean = 0, max = 0, min = Long.MAX_VALUE;
 164         for (int i=0; i<MAX_DELAYS && i<mDelaysCount; i++) {
 165             sum += mResponseDelays[i];
 166             max = Math.max(max, mResponseDelays[i]);
 167             min = Math.min(min, mResponseDelays[i]);
 168         }
 169         mean = sum / mDelaysCount;
 170         Log.e(TAG, "SYNC STATS - response: mean time = " + mean + " ; max time = " + max + " ; min time = " + min);
 171
 172         sum = 0; max = 0; min = Long.MAX_VALUE;
 173         for (int i=0; i<MAX_DELAYS && i<mDelaysCount; i++) {
 174             sum += mSaveDelays[i];
 175             max = Math.max(max, mSaveDelays[i]);
 176             min = Math.min(min, mSaveDelays[i]);
 177         }
 178         mean = sum / mDelaysCount;
 179         Log.e(TAG, "SYNC STATS - save:     mean time = " + mean + " ; max time = " + max + " ; min time = " + min);
 180         Log.e(TAG, "SYNC STATS - folders measured: " + mDelaysCount);
 181         */
 182
 183     }
 184
 185     private void fetchData(String uri, SyncResult syncResult, long parentId) {
 186         PropFindMethod query = null;
 187         Vector<OCFile> children = null;
 188         try {
 189             Log.d(TAG, "fetching " + uri);
 190
 191             // remote request
 192             query = new PropFindMethod(uri);
 193             /*  Commented code for ugly performance tests
 194             long responseDelay = System.currentTimeMillis();
 195             */
 196             int status = getClient().executeMethod(query);
 197             /*  Commented code for ugly performance tests
 198             responseDelay = System.currentTimeMillis() - responseDelay;
 199             Log.e(TAG, "syncing: RESPONSE TIME for " + uri + " contents, " + responseDelay + "ms");
 200             */
 201             if (status != HttpStatus.SC_UNAUTHORIZED) {
 202                 MultiStatus resp = query.getResponseBodyAsMultiStatus();
 203
 204                 // insertion or update of files
 205                 List<OCFile> updatedFiles = new Vector<OCFile>(resp.getResponses().length - 1);
 206                 for (int i = 1; i < resp.getResponses().length; ++i) {
 207                     WebdavEntry we = new WebdavEntry(resp.getResponses()[i], getUri().getPath());
 208                     OCFile file = fillOCFile(we);
 209                     file.setParentId(parentId);
 210                     if (getStorageManager().getFileByPath(file.getRemotePath()) != null &&
 211                             getStorageManager().getFileByPath(file.getRemotePath()).keepInSync() &&
 212                             file.getModificationTimestamp() > getStorageManager().getFileByPath(file.getRemotePath())
 213                                                                          .getModificationTimestamp()) {
 214                         Intent intent = new Intent(this.getContext(), FileDownloader.class);
 215                         intent.putExtra(FileDownloader.EXTRA_ACCOUNT, getAccount());
 216                         intent.putExtra(FileDownloader.EXTRA_FILE, file);
 217                         file.setKeepInSync(true);
 218                         getContext().startService(intent);
 219                     }
 220                     if (getStorageManager().getFileByPath(file.getRemotePath()) != null)
 221                         file.setKeepInSync(getStorageManager().getFileByPath(file.getRemotePath()).keepInSync());
 222
 223                     // Log.v(TAG, "adding file: " + file);
 224                     updatedFiles.add(file);
 225                 }
 226                 /*  Commented code for ugly performance tests
 227                 long saveDelay = System.currentTimeMillis();
 228                  */
 229                 getStorageManager().saveFiles(updatedFiles);    // all "at once" ; trying to get a best performance in database update
 230                 /*  Commented code for ugly performance tests
 231                 saveDelay = System.currentTimeMillis() - saveDelay;
 232                 Log.e(TAG, "syncing: SAVE TIME for " + uri + " contents, " + mSaveDelays[mDelaysIndex] + "ms");
 233                  */
 234
 235                 // removal of obsolete files
 236                  children = getStorageManager().getDirectoryContent(
 237                         getStorageManager().getFileById(parentId));
 238                 OCFile file;
 239                 String currentSavePath = FileDownloader.getSavePath(getAccount().name);
 240                 for (int i=0; i < children.size(); ) {
 241                     file = children.get(i);
 242                     if (file.getLastSyncDate() != mCurrentSyncTime) {
 243                         Log.v(TAG, "removing file: " + file);
 244                         getStorageManager().removeFile(file, (file.isDown() && file.getStoragePath().startsWith(currentSavePath)));
 245                         children.remove(i);
 246                     } else {
 247                         i++;
 248                     }
 249                 }
 250
 251             } else {
 252                 syncResult.stats.numAuthExceptions++;
 253             }
 254         } catch (IOException e) {
 255             syncResult.stats.numIoExceptions++;
 256             logException(e, uri);
 257
 258         } catch (DavException e) {
 259             syncResult.stats.numParseExceptions++;
 260             logException(e, uri);
 261
 262         } catch (Exception e) {
 263             // TODO something smart with syncresult
 264             mRightSync = false;
 265             logException(e, uri);
 266
 267         } finally {
 268             if (query != null)
 269                 query.releaseConnection();  // let the connection available for other methods
 270
 271             // synchronized folder -> notice to UI
 272             sendStickyBroadcast(true, getStorageManager().getFileById(parentId).getRemotePath());
 273         }
 274
 275
 276         fetchChildren(children, syncResult);
 277         if (mCancellation) Log.d(TAG, "Leaving " + uri + " because cancelation request");
 278
 279
 280         /*  Commented code for ugly performance tests
 281         mResponseDelays[mDelaysIndex] = responseDelay;
 282         mSaveDelays[mDelaysIndex] = saveDelay;
 283         mDelaysCount++;
 284         mDelaysIndex++;
 285         if (mDelaysIndex >= MAX_DELAYS)
 286             mDelaysIndex = 0;
 287          */
 288
 289     }
 290
 291     /**
 292      * Synchronize data of folders in the list of received files
 293      *
 294      * @param files         Files to recursively fetch
 295      * @param syncResult    Updated object to provide results to the Synchronization Manager
 296      */
 297     private void fetchChildren(Vector<OCFile> files, SyncResult syncResult) {
 298         for (int i=0; i < files.size() && !mCancellation; i++) {
 299             OCFile newFile = files.get(i);
 300             if (newFile.getMimetype().equals("DIR")) {
 301                 fetchData(getUri().toString() + WebdavUtils.encodePath(newFile.getRemotePath()), syncResult, newFile.getFileId());
 302             }
 303         }
 304     }
 305
 306
 307     private OCFile fillOCFile(WebdavEntry we) {
 308         OCFile file = new OCFile(we.decodedPath());
 309         file.setCreationTimestamp(we.createTimestamp());
 310         file.setFileLength(we.contentLength());
 311         file.setMimetype(we.contentType());
 312         file.setModificationTimestamp(we.modifiedTimesamp());
 313         file.setLastSyncDate(mCurrentSyncTime);
 314         return file;
 315     }
 316
 317
 318     private void sendStickyBroadcast(boolean inProgress, String dirRemotePath) {
 319         Intent i = new Intent(FileSyncService.SYNC_MESSAGE);
 320         i.putExtra(FileSyncService.IN_PROGRESS, inProgress);
 321         i.putExtra(FileSyncService.ACCOUNT_NAME, getAccount().name);
 322         if (dirRemotePath != null) {
 323             i.putExtra(FileSyncService.SYNC_FOLDER_REMOTE_PATH, dirRemotePath);
 324         }
 325         getContext().sendStickyBroadcast(i);
 326     }
 327
 328     /**
 329      * Called by system SyncManager when a synchronization is required to be cancelled.
 330      *
 331      * Sets the mCancellation flag to 'true'. THe synchronization will be stopped when before a new folder is fetched. Data of the last folder
 332      * fetched will be still saved in the database. See onPerformSync implementation.
 333      */
 334     @Override
 335     public void onSyncCanceled() {
 336         Log.d(TAG, "Synchronization of " + getAccount().name + " has been requested to cancel");
 337         mCancellation = true;
 338         super.onSyncCanceled();
 339     }
 340
 341
 342     /**
 343      * Logs an exception triggered in a synchronization request.
 344      *
 345      * @param e       Caught exception.
 346      * @param uri     Uri to the remote directory that was fetched when the synchronization failed
 347      */
 348     private void logException(Exception e, String uri) {
 349         if (e instanceof IOException) {
 350             Log.e(TAG, "Unrecovered transport exception while synchronizing " + uri + " at " + getAccount().name, e);
 351
 352         } else if (e instanceof DavException) {
 353             Log.e(TAG, "Unexpected WebDAV exception while synchronizing " + uri + " at " + getAccount().name, e);
 354
 355         } else {
 356             Log.e(TAG, "Unexpected exception while synchronizing " + uri  + " at " + getAccount().name, e);
 357         }
 358     }
 359
 360     private void updateOCVersion() {
 361         String statUrl = getAccountManager().getUserData(getAccount(), AccountAuthenticator.KEY_OC_BASE_URL);
 362         statUrl += AccountUtils.STATUS_PATH;
 363
 364         try {
 365             String result = getClient().getResultAsString(statUrl);
 366             if (result != null) {
 367                 try {
 368                     JSONObject json = new JSONObject(result);
 369                     if (json != null && json.getString("version") != null) {
 370                         OwnCloudVersion ocver = new OwnCloudVersion(json.getString("version"));
 371                         if (ocver.isVersionValid()) {
 372                             getAccountManager().setUserData(getAccount(), AccountAuthenticator.KEY_OC_VERSION, ocver.toString());
 373                             Log.d(TAG, "Got new OC version " + ocver.toString());
 374                         } else {
 375                             Log.w(TAG, "Invalid version number received from server: " + json.getString("version"));
 376                         }
 377                     }
 378                 } catch (Throwable e) {
 379                     Log.w(TAG, "Couldn't parse version response", e);
 380                 }
 381             } else {
 382                 Log.w(TAG, "Problem while getting ocversion from server");
 383             }
 384         } catch (Exception e) {
 385             Log.e(TAG, "Problem getting response from server", e);
 386         }
 387     }
 388 }