Android Open Source - android-davsync Upload Service

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License

The source code is released under:

Copyright ? 2013, Michael Stapelberg and contributors All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following ...

Java Source Code

package net.zekjur.davsync;
/*  ww  w .  j a va  2s  . c o  m*/
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

import net.zekjur.davsync.CountingInputStreamEntity.UploadListener;

import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.AuthenticationException;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.impl.auth.BasicScheme;
import org.apache.http.impl.client.DefaultHttpClient;

import android.app.IntentService;
import android.app.NotificationManager;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.net.Uri;
import android.os.ParcelFileDescriptor;
import android.provider.MediaStore;
import android.app.Notification;
import android.app.Notification.Builder;
import android.util.Log;

public class UploadService extends IntentService {
  public UploadService() {
    super("UploadService");
  }

  /*
   * Resolve a Uri like content://media/external/images/media/9210?? to an
   * actual filename, like IMG_20130304_181119.jpg??
   */
  private String filenameFromUri(Uri uri) {
    String[] projection = { MediaStore.Images.Media.DATA };
    Cursor cursor = getContentResolver().query(uri, projection, null, null, null);
    if (cursor == null || cursor.getCount() == 0)
      return null;
    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    cursor.moveToFirst();
    Uri filePathUri = Uri.parse(cursor.getString(column_index));
    return filePathUri.getLastPathSegment().toString();
  }

  @Override
  protected void onHandleIntent(Intent intent) {
    final Uri uri = (Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM);
    Log.d("davsyncs", "Uploading " + uri.toString());

    SharedPreferences preferences = getSharedPreferences("net.zekjur.davsync_preferences", Context.MODE_PRIVATE);

    String webdavUrl = preferences.getString("webdav_url", null);
    String webdavUser = preferences.getString("webdav_user", null);
    String webdavPassword = preferences.getString("webdav_password", null);
    if (webdavUrl == null) {
      Log.d("davsyncs", "No WebDAV URL set up.");
      return;
    }

    ContentResolver cr = getContentResolver();

    String filename = this.filenameFromUri(uri);
    if (filename == null) {
      Log.d("davsyncs", "filenameFromUri returned null");
      return;
    }

    final Builder mBuilder = new Notification.Builder(this);
    mBuilder.setContentTitle("Uploading to WebDAV server");
    mBuilder.setContentText(filename);
    mBuilder.setSmallIcon(android.R.drawable.ic_menu_upload);
    mBuilder.setOngoing(true);
    mBuilder.setProgress(100, 30, false);
    final NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    mNotificationManager.notify(uri.toString(), 0, mBuilder.build());

    HttpPut httpPut = new HttpPut(webdavUrl + filename);

    ParcelFileDescriptor fd;
    InputStream stream;
    try {
      fd = cr.openFileDescriptor(uri, "r");
      stream = cr.openInputStream(uri);
    } catch (FileNotFoundException e1) {
      e1.printStackTrace();
      return;
    }

    CountingInputStreamEntity entity = new CountingInputStreamEntity(stream, fd.getStatSize());
    entity.setUploadListener(new UploadListener() {
      @Override
      public void onChange(int percent) {
        mBuilder.setProgress(100, percent, false);
        mNotificationManager.notify(uri.toString(), 0, mBuilder.build());
      }
    });

    httpPut.setEntity(entity);

    DefaultHttpClient httpClient = new DefaultHttpClient();

    if (webdavUser != null && webdavPassword != null) {
      AuthScope authScope = new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT);
      UsernamePasswordCredentials credentials = new UsernamePasswordCredentials(webdavUser, webdavPassword);
      httpClient.getCredentialsProvider().setCredentials(authScope, credentials);

      try {
        httpPut.addHeader(new BasicScheme().authenticate(credentials, httpPut));
      } catch (AuthenticationException e1) {
        e1.printStackTrace();
        return;
      }
    }

    try {
      HttpResponse response = httpClient.execute(httpPut);
      int status = response.getStatusLine().getStatusCode();
      // 201 means the file was created.
      // 200 and 204 mean it was stored but already existed.
      if (status == 201 || status == 200 || status == 204) {
        // The file was uploaded, so we remove the ongoing notification,
        // remove it from the queue and thats it.
        mNotificationManager.cancel(uri.toString(), 0);
        DavSyncOpenHelper helper = new DavSyncOpenHelper(this);
        helper.removeUriFromQueue(uri.toString());
        return;
      }
      Log.d("davsyncs", "" + response.getStatusLine());
      mBuilder.setContentText(filename + ": " + response.getStatusLine());
    } catch (ClientProtocolException e) {
      e.printStackTrace();
      mBuilder.setContentText(filename + ": " + e.getLocalizedMessage());
    } catch (IOException e) {
      e.printStackTrace();
      mBuilder.setContentText(filename + ": " + e.getLocalizedMessage());
    }

    // XXX: It would be good to provide an option to try again.
    // (or try it again automatically?)
    // XXX: possibly we should re-queue the images in the database
    mBuilder.setContentTitle("Error uploading to WebDAV server");
    mBuilder.setProgress(0, 0, false);
    mBuilder.setOngoing(false);
    mNotificationManager.notify(uri.toString(), 0, mBuilder.build());
  }
}

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