src/eu/alefzero/owncloud/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 eu.alefzero.owncloud.syncadapter;
  20
  21 import java.io.IOException;
  22 import java.io.ObjectInputStream.GetField;
  23 import java.util.Vector;
  24
  25 import org.apache.jackrabbit.webdav.DavException;
  26 import org.apache.jackrabbit.webdav.MultiStatus;
  27 import org.apache.jackrabbit.webdav.client.methods.PropFindMethod;
  28
  29 import android.accounts.Account;
  30 import android.accounts.AuthenticatorException;
  31 import android.accounts.OperationCanceledException;
  32 import android.content.ContentProviderClient;
  33 import android.content.Context;
  34 import android.content.Intent;
  35 import android.content.SyncResult;
  36 import android.os.Bundle;
  37 import android.util.Log;
  38 import eu.alefzero.owncloud.datamodel.FileDataStorageManager;
  39 import eu.alefzero.owncloud.datamodel.OCFile;
  40 import eu.alefzero.owncloud.files.services.FileDownloader;
  41 import eu.alefzero.webdav.WebdavEntry;
  42
  43 /**
  44  * SyncAdapter implementation for syncing sample SyncAdapter contacts to the
  45  * platform ContactOperations provider.
  46  *
  47  * @author Bartek Przybylski
  48  */
  49 public class FileSyncAdapter extends AbstractOwnCloudSyncAdapter {
  50
  51     private final static String TAG = "FileSyncAdapter";
  52
  53     private long mCurrentSyncTime;
  54
  55     public FileSyncAdapter(Context context, boolean autoInitialize) {
  56         super(context, autoInitialize);
  57     }
  58
  59     @Override
  60     public synchronized void onPerformSync(Account account, Bundle extras,
  61             String authority, ContentProviderClient provider,
  62             SyncResult syncResult) {
  63
  64         this.setAccount(account);
  65         this.setContentProvider(provider);
  66         this.setStorageManager(new FileDataStorageManager(account,
  67                 getContentProvider()));
  68
  69         Log.d(TAG, "syncing owncloud account " + account.name);
  70
  71         sendStickyBroadcast(true, null);  // message to signal the start to the UI
  72
  73         PropFindMethod query;
  74         try {
  75             mCurrentSyncTime = System.currentTimeMillis();
  76             query = new PropFindMethod(getUri().toString() + "/");
  77             getClient().executeMethod(query);
  78             MultiStatus resp = null;
  79             resp = query.getResponseBodyAsMultiStatus();
  80
  81             if (resp.getResponses().length > 0) {
  82                 WebdavEntry we = new WebdavEntry(resp.getResponses()[0], getUri().getPath());
  83                 OCFile file = fillOCFile(we);
  84                 file.setParentId(0);
  85                 getStorageManager().saveFile(file);
  86                 fetchData(getUri().toString(), syncResult, file.getFileId(), account);
  87             }
  88         } catch (OperationCanceledException e) {
  89             e.printStackTrace();
  90         } catch (AuthenticatorException e) {
  91             syncResult.stats.numAuthExceptions++;
  92             e.printStackTrace();
  93         } catch (IOException e) {
  94             syncResult.stats.numIoExceptions++;
  95             e.printStackTrace();
  96         } catch (DavException e) {
  97             syncResult.stats.numIoExceptions++;
  98             e.printStackTrace();
  99         } catch (Throwable t) {
 100             // TODO update syncResult
 101             Log.e(TAG, "problem while synchronizing owncloud account " + account.name, t);
 102             t.printStackTrace();
 103         }
 104         sendStickyBroadcast(false, null);
 105     }
 106
 107     private void fetchData(String uri, SyncResult syncResult, long parentId, Account account) {
 108         try {
 109             Log.v(TAG, "syncing: fetching " + uri);
 110
 111             // remote request
 112             PropFindMethod query = new PropFindMethod(uri);
 113             getClient().executeMethod(query);
 114             MultiStatus resp = null;
 115
 116             resp = query.getResponseBodyAsMultiStatus();
 117
 118             // insertion of updated files
 119             for (int i = 1; i < resp.getResponses().length; ++i) {
 120                 WebdavEntry we = new WebdavEntry(resp.getResponses()[i], getUri().getPath());
 121                 OCFile file = fillOCFile(we);
 122                 file.setParentId(parentId);
 123                 if (getStorageManager().getFileByPath(file.getRemotePath()) != null &&
 124                     getStorageManager().getFileByPath(file.getRemotePath()).keepInSync() &&
 125                     file.getModificationTimestamp() > getStorageManager().getFileByPath(file.getRemotePath())
 126                                                                          .getModificationTimestamp()) {
 127                     Intent intent = new Intent(this.getContext(), FileDownloader.class);
 128                     intent.putExtra(FileDownloader.EXTRA_ACCOUNT, getAccount());
 129                     intent.putExtra(FileDownloader.EXTRA_FILE_PATH, file.getURLDecodedRemotePath());
 130                     intent.putExtra(FileDownloader.EXTRA_REMOTE_PATH, file.getRemotePath());
 131                     intent.putExtra(FileDownloader.EXTRA_FILE_SIZE, file.getFileLength());
 132                     file.setKeepInSync(true);
 133                     getContext().startService(intent);
 134                 }
 135                 if (getStorageManager().getFileByPath(file.getRemotePath()) != null)
 136                     file.setKeepInSync(getStorageManager().getFileByPath(file.getRemotePath()).keepInSync());
 137                 getStorageManager().saveFile(file);
 138                 if (parentId == 0)
 139                     parentId = file.getFileId();
 140             }
 141
 142             // removal of old files
 143             Vector<OCFile> files = getStorageManager().getDirectoryContent(
 144                     getStorageManager().getFileById(parentId));
 145             OCFile file;
 146             for (int i=0; i < files.size(); ) {
 147                 file = files.get(i);
 148                 if (file.getLastSyncDate() != mCurrentSyncTime && file.getLastSyncDate() != 0) {
 149                     getStorageManager().removeFile(file);
 150                     files.remove(i);
 151                 } else {
 152                     i++;
 153                 }
 154             }
 155
 156             // synchronized folder -> notice to UI
 157             sendStickyBroadcast(true, getStorageManager().getFileById(parentId).getRemotePath());
 158
 159             // recursive fetch
 160             for (OCFile newFile : files) {
 161                 if (newFile.getMimetype().equals("DIR")) {
 162                     fetchData(getUri().toString() + newFile.getRemotePath(), syncResult, newFile.getFileId(), account);
 163                 }
 164             }
 165
 166
 167         } catch (OperationCanceledException e) {
 168             e.printStackTrace();
 169         } catch (AuthenticatorException e) {
 170             syncResult.stats.numAuthExceptions++;
 171             e.printStackTrace();
 172         } catch (IOException e) {
 173             syncResult.stats.numIoExceptions++;
 174             e.printStackTrace();
 175         } catch (DavException e) {
 176             syncResult.stats.numIoExceptions++;
 177             e.printStackTrace();
 178         } catch (Throwable t) {
 179             // TODO update syncResult
 180             Log.e(TAG, "problem while synchronizing owncloud account " + account.name, t);
 181             t.printStackTrace();
 182         }
 183     }
 184
 185     private OCFile fillOCFile(WebdavEntry we) {
 186         OCFile file = new OCFile(we.path());
 187         file.setCreationTimestamp(we.createTimestamp());
 188         file.setFileLength(we.contentLength());
 189         file.setMimetype(we.contentType());
 190         file.setModificationTimestamp(we.modifiedTimesamp());
 191         file.setLastSyncDate(mCurrentSyncTime);
 192         return file;
 193     }
 194
 195
 196     private void sendStickyBroadcast(boolean inProgress, String dirRemotePath) {
 197         Intent i = new Intent(FileSyncService.SYNC_MESSAGE);
 198         i.putExtra(FileSyncService.IN_PROGRESS, inProgress);
 199         i.putExtra(FileSyncService.ACCOUNT_NAME, getAccount().name);
 200         if (dirRemotePath != null) {
 201             i.putExtra(FileSyncService.SYNC_FOLDER_REMOTE_PATH, dirRemotePath);
 202         }
 203         getContext().sendStickyBroadcast(i);
 204     }
 205
 206 }