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