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.owncloud.syncadapter.FileSyncService;
  29 import eu.alefzero.webdav.WebdavClient;
  30
  31 public class FileDownloader extends Service implements OnDatatransferProgressListener {
  32     public static final String DOWNLOAD_FINISH_MESSAGE = "DOWNLOAD_FINISH";
  33     public static final String EXTRA_DOWNLOAD_RESULT = "RESULT";
  34     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  35     public static final String EXTRA_FILE_PATH = "FILE_PATH";
  36     public static final String EXTRA_REMOTE_PATH = "REMOTE_PATH";
  37     public static final String EXTRA_FILE_SIZE = "FILE_SIZE";
  38     public static final String ACCOUNT_NAME = "ACCOUNT_NAME";
  39     private static final String TAG = "FileDownloader";
  40
  41     private NotificationManager mNotificationMngr;
  42     private Looper mServiceLooper;
  43     private ServiceHandler mServiceHandler;
  44     private Account mAccount;
  45     private String mFilePath;
  46     private String mRemotePath;
  47     private int mLastPercent;
  48     private long mTotalDownloadSize;
  49     private long mCurrentDownlodSize;
  50     private Notification mNotification;
  51
  52     private final class ServiceHandler extends Handler {
  53         public ServiceHandler(Looper looper) {
  54             super(looper);
  55         }
  56
  57         @Override
  58         public void handleMessage(Message msg) {
  59             downloadFile();
  60             stopSelf(msg.arg1);
  61         }
  62     }
  63
  64     @Override
  65     public void onCreate() {
  66         super.onCreate();
  67         mNotificationMngr = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
  68         HandlerThread thread = new HandlerThread("FileDownladerThread",
  69                 Process.THREAD_PRIORITY_BACKGROUND);
  70         thread.start();
  71         mServiceLooper = thread.getLooper();
  72         mServiceHandler = new ServiceHandler(mServiceLooper);
  73     }
  74
  75     @Override
  76     public IBinder onBind(Intent arg0) {
  77         return null;
  78     }
  79
  80     @Override
  81     public int onStartCommand(Intent intent, int flags, int startId) {
  82         if (!intent.hasExtra(EXTRA_ACCOUNT)
  83                 && !intent.hasExtra(EXTRA_FILE_PATH)) {
  84             Log.e(TAG, "Not enough information provided in intent");
  85             return START_STICKY;
  86         }
  87         mAccount = intent.getParcelableExtra(EXTRA_ACCOUNT);
  88         mFilePath = intent.getStringExtra(EXTRA_FILE_PATH);
  89         mRemotePath = intent.getStringExtra(EXTRA_REMOTE_PATH);
  90         Message msg = mServiceHandler.obtainMessage();
  91         msg.arg1 = startId;
  92         mServiceHandler.sendMessage(msg);
  93         mCurrentDownlodSize = mLastPercent = 0;
  94         mTotalDownloadSize = intent.getLongExtra(EXTRA_FILE_SIZE, -1);
  95
  96         return START_NOT_STICKY;
  97     }
  98
  99     void downloadFile() {
 100         AccountManager am = (AccountManager) getSystemService(ACCOUNT_SERVICE);
 101
 102
 103         WebdavClient wdc = new WebdavClient(mAccount, getApplicationContext());
 104
 105         String username = mAccount.name.split("@")[0];
 106         String password = "";
 107         try {
 108             password = am.blockingGetAuthToken(mAccount,
 109                     AccountAuthenticator.AUTH_TOKEN_TYPE, true);
 110         } catch (Exception e) {
 111             e.printStackTrace();
 112             return;
 113         }
 114
 115         wdc.setCredentials(username, password);
 116         wdc.allowSelfsignedCertificates();
 117         wdc.setDataTransferProgressListener(this);
 118
 119         mNotification = new Notification(R.drawable.icon, "Downloading file", System.currentTimeMillis());
 120
 121         mNotification.flags |= Notification.FLAG_ONGOING_EVENT;
 122         mNotification.contentView = new RemoteViews(getApplicationContext().getPackageName(), R.layout.progressbar_layout);
 123         mNotification.contentView.setProgressBar(R.id.status_progress, 100, 0, mTotalDownloadSize == -1);
 124         mNotification.contentView.setImageViewResource(R.id.status_icon, R.drawable.icon);
 125         // dvelasco ; contentIntent MUST be assigned to avoid app crashes in versions previous to Android 4.x ;
 126         //              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
 127         mNotification.contentIntent = PendingIntent.getActivity(getApplicationContext(), 0, new Intent(), PendingIntent.FLAG_UPDATE_CURRENT);
 128
 129         mNotificationMngr.notify(1, mNotification);
 130
 131         File sdCard = Environment.getExternalStorageDirectory();
 132         File file = new File(sdCard.getAbsolutePath() + "/owncloud/" + mAccount.name + mFilePath);
 133         file.getParentFile().mkdirs();
 134
 135         boolean download_result = false;
 136         if (wdc.downloadFile(mRemotePath, file)) {
 137             ContentValues cv = new ContentValues();
 138             cv.put(ProviderTableMeta.FILE_STORAGE_PATH, file.getAbsolutePath());
 139             getContentResolver().update(
 140                     ProviderTableMeta.CONTENT_URI,
 141                     cv,
 142                     ProviderTableMeta.FILE_NAME + "=? AND "
 143                             + ProviderTableMeta.FILE_ACCOUNT_OWNER + "=?",
 144                     new String[] {
 145                             mFilePath.substring(mFilePath.lastIndexOf('/') + 1),
 146                             mAccount.name });
 147             download_result = true;
 148         }
 149
 150         mNotificationMngr.cancel(1);
 151         Intent end = new Intent(DOWNLOAD_FINISH_MESSAGE);
 152         end.putExtra(EXTRA_REMOTE_PATH, mRemotePath);
 153         end.putExtra(EXTRA_FILE_PATH, file.getAbsolutePath());
 154         end.putExtra(EXTRA_DOWNLOAD_RESULT, download_result);
 155         end.putExtra(ACCOUNT_NAME, mAccount.name);
 156         sendBroadcast(end);
 157
 158         if (download_result) {
 159             Toast.makeText(this, R.string.downloader_download_succeed , Toast.LENGTH_SHORT).show();
 160         } else {
 161             Toast.makeText(this, R.string.downloader_download_failed , Toast.LENGTH_SHORT).show();
 162         }
 163
 164     }
 165
 166     @Override
 167     public void transferProgress(long progressRate) {
 168         mCurrentDownlodSize += progressRate;
 169         int percent = (int)(100.0*((double)mCurrentDownlodSize)/((double)mTotalDownloadSize));
 170         if (percent != mLastPercent) {
 171           mNotification.contentView.setProgressBar(R.id.status_progress, 100, (int)(100*mCurrentDownlodSize/mTotalDownloadSize), mTotalDownloadSize == -1);
 172           mNotification.contentView.setTextViewText(R.id.status_text, percent+"%");
 173           mNotificationMngr.notify(1, mNotification);
 174         }
 175
 176         mLastPercent = percent;
 177     }
 178
 179
 180 }