src/eu/alefzero/owncloud/files/services/FileDownloader.java

   1 package eu.alefzero.owncloud.files.services;
   2
   3 import java.io.File;
   4 import java.io.IOException;
   5
   6 import android.accounts.Account;
   7 import android.accounts.AccountManager;
   8 import android.app.Notification;
   9 import android.app.NotificationManager;
  10 import android.app.PendingIntent;
  11 import android.app.Service;
  12 import android.content.ContentValues;
  13 import android.content.Intent;
  14 import android.os.Environment;
  15 import android.os.Handler;
  16 import android.os.HandlerThread;
  17 import android.os.IBinder;
  18 import android.os.Looper;
  19 import android.os.Message;
  20 import android.os.Process;
  21 import android.util.Log;
  22 import android.widget.RemoteViews;
  23 import android.widget.Toast;
  24 import eu.alefzero.owncloud.R;
  25 import eu.alefzero.owncloud.authenticator.AccountAuthenticator;
  26 import eu.alefzero.owncloud.db.ProviderMeta.ProviderTableMeta;
  27 import eu.alefzero.owncloud.files.interfaces.OnDatatransferProgressListener;
  28 import eu.alefzero.webdav.WebdavClient;
  29
  30 public class FileDownloader extends Service implements OnDatatransferProgressListener {
  31     public static final String DOWNLOAD_FINISH_MESSAGE = "DOWNLOAD_FINISH";
  32     public static final String EXTRA_DOWNLOAD_RESULT = "RESULT";
  33     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  34     public static final String EXTRA_FILE_PATH = "FILE_PATH";
  35     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  36     public static final String EXTRA_FILE_SIZE = "FILE_SIZE";
  37     private static final String TAG = "FileDownloader";
  38
  39     private NotificationManager mNotificationMngr;
  40     private Looper mServiceLooper;
  41     private ServiceHandler mServiceHandler;
  42     private Account mAccount;
  43     private String mFilePath;
  44     private String mRemotePath;
  45     private int mLastPercent;
  46     private long mTotalDownloadSize;
  47     private long mCurrentDownlodSize;
  48     private Notification mNotification;
  49
  50     private final class ServiceHandler extends Handler {
  51         public ServiceHandler(Looper looper) {
  52             super(looper);
  53         }
  54
  55         @Override
  56         public void handleMessage(Message msg) {
  57             downloadFile();
  58             stopSelf(msg.arg1);
  59         }
  60     }
  61
  62     @Override
  63     public void onCreate() {
  64         super.onCreate();
  65         mNotificationMngr = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
  66         HandlerThread thread = new HandlerThread("FileDownladerThread",
  67                 Process.THREAD_PRIORITY_BACKGROUND);
  68         thread.start();
  69         mServiceLooper = thread.getLooper();
  70         mServiceHandler = new ServiceHandler(mServiceLooper);
  71     }
  72
  73     @Override
  74     public IBinder onBind(Intent arg0) {
  75         return null;
  76     }
  77
  78     @Override
  79     public int onStartCommand(Intent intent, int flags, int startId) {
  80         if (!intent.hasExtra(EXTRA_ACCOUNT)
  81                 && !intent.hasExtra(EXTRA_FILE_PATH)) {
  82             Log.e(TAG, "Not enough information provided in intent");
  83             return START_STICKY;
  84         }
  85         mAccount = intent.getParcelableExtra(EXTRA_ACCOUNT);
  86         mFilePath = intent.getStringExtra(EXTRA_FILE_PATH);
  87         mRemotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
  88         Message msg = mServiceHandler.obtainMessage();
  89         msg.arg1 = startId;
  90         mServiceHandler.sendMessage(msg);
  91         mCurrentDownlodSize = mLastPercent = 0;
  92         mTotalDownloadSize = intent.getLongExtra(EXTRA_FILE_SIZE, -1);
  93
  94         return START_NOT_STICKY;
  95     }
  96
  97     void downloadFile() {
  98         AccountManager am = (AccountManager) getSystemService(ACCOUNT_SERVICE);
  99
 100
 101         WebdavClient wdc = new WebdavClient(mAccount, getApplicationContext());
 102
 103         String username = mAccount.name.split("@")[0];
 104         String password = "";
 105         try {
 106             password = am.blockingGetAuthToken(mAccount,
 107                     AccountAuthenticator.AUTH_TOKEN_TYPE, true);
 108         } catch (Exception e) {
 109             e.printStackTrace();
 110             return;
 111         }
 112
 113         wdc.setCredentials(username, password);
 114         wdc.allowSelfsignedCertificates();
 115         wdc.setDataTransferProgressListener(this);
 116
 117         mNotification = new Notification(R.drawable.icon, "Downloading file", System.currentTimeMillis());
 118
 119         mNotification.flags |= Notification.FLAG_ONGOING_EVENT;
 120         mNotification.contentView = new RemoteViews(getApplicationContext().getPackageName(), R.layout.progressbar_layout);
 121         mNotification.contentView.setProgressBar(R.id.status_progress, 100, 0, mTotalDownloadSize == -1);
 122         mNotification.contentView.setImageViewResource(R.id.status_icon, R.drawable.icon);
 123         // dvelasco ; contentIntent MUST be assigned to avoid app crashes in versions previous to Android 4.x ;
 124         //              BUT an empty Intent is not a very elegant solution; something smart should happen when a user 'clicks' on a download in the notification bar
 125         mNotification.contentIntent = PendingIntent.getActivity(getApplicationContext(), 0, new Intent(), PendingIntent.FLAG_UPDATE_CURRENT);
 126
 127         mNotificationMngr.notify(1, mNotification);
 128
 129         File sdCard = Environment.getExternalStorageDirectory();
 130         File file = new File(sdCard.getAbsolutePath() + "/owncloud/" + mAccount.name + mFilePath);
 131         file.getParentFile().mkdirs();
 132
 133         boolean download_result = false;
 134         if (wdc.downloadFile(mRemotePath, file)) {
 135             ContentValues cv = new ContentValues();
 136             cv.put(ProviderTableMeta.FILE_STORAGE_PATH, file.getAbsolutePath());
 137             getContentResolver().update(
 138                     ProviderTableMeta.CONTENT_URI,
 139                     cv,
 140                     ProviderTableMeta.FILE_NAME + "=? AND "
 141                             + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?",
 142                     new String[] {
 143                             mFilePath.substring(mFilePath.lastIndexOf('/') + 1),
 144                             mAccount.name });
 145             download_result = true;
 146         }
 147
 148         mNotificationMngr.cancel(1);
 149         Intent end = new Intent(DOWNLOAD_FINISH_MESSAGE);
 150         end.putExtra(EXTRA_REMOTE_PATH, mRemotePath);
 151         end.putExtra(EXTRA_FILE_PATH, file.getAbsolutePath());
 152         end.putExtra(EXTRA_DOWNLOAD_RESULT, download_result);
 153         sendBroadcast(end);
 154
 155         if (download_result) {
 156             Toast.makeText(this, R.string.downloader_download_succeed , Toast.LENGTH_SHORT).show();
 157         } else {
 158             Toast.makeText(this, R.string.downloader_download_failed , Toast.LENGTH_SHORT).show();
 159         }
 160
 161     }
 162
 163     @Override
 164     public void transferProgress(long progressRate) {
 165         mCurrentDownlodSize += progressRate;
 166         int percent = (int)(100.0*((double)mCurrentDownlodSize)/((double)mTotalDownloadSize));
 167         if (percent != mLastPercent) {
 168           mNotification.contentView.setProgressBar(R.id.status_progress, 100, (int)(100*mCurrentDownlodSize/mTotalDownloadSize), mTotalDownloadSize == -1);
 169           mNotification.contentView.setTextViewText(R.id.status_text, percent+"%");
 170           mNotificationMngr.notify(1, mNotification);
 171         }
 172
 173         mLastPercent = percent;
 174     }
 175
 176
 177 }