WebserviceTask.java :  » UnTagged » android-wifi-tether » android » tether » system » Android Open Source

/**
 *  This program is free software; you can redistribute it and/or modify it under 
 *  the terms of the GNU General Public License as published by the Free Software 
 *  Foundation; either version 3 of the License, or (at your option) any later 
 *  version.
 *  You should have received a copy of the GNU General Public License along with 
 *  this program; if not, see <http://www.gnu.org/licenses/>. 
 *  Use this application at your own risk.
 *
 *  Copyright (c) 2009 by Harald Mueller, Sofia Lemons and Ben Buxton.
 */

package android.tether.system;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import java.util.zip.GZIPInputStream;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.os.Message;
import android.tether.MainActivity;
import android.util.Log;

public class WebserviceTask {
  
  public static final String MSG_TAG = "TETHER -> WebserviceTask";
  public static final String DOWNLOAD_FILEPATH = "/sdcard/download";
  public static final String BLUETOOTH_FILEPATH = "/sdcard/android.tether";
  
  public MainActivity mainActivity;
  
  public Properties queryForProperty(String url) {
    Properties properties = null; 
    HttpClient client = new DefaultHttpClient();
        HttpGet request = new HttpGet(String.format(url));
        try {
            HttpResponse response = client.execute(request);

            StatusLine status = response.getStatusLine();
            Log.d(MSG_TAG, "Request returned status " + status);
            if (status.getStatusCode() == 200) {
              HttpEntity entity = response.getEntity();
              properties = new Properties();
              properties.load(entity.getContent());
            }
        } catch (IOException e) {
          Log.d(MSG_TAG, "Can't get property '"+url+"'.");
        }
    return properties;
  }
  
  public boolean downloadUpdateFile(String downloadFileUrl, String destinationFilename) {
    if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED) == false) {
      return false;
    }
    File downloadDir = new File(DOWNLOAD_FILEPATH);
    if (downloadDir.exists() == false) {
      downloadDir.mkdirs();
    }
    else {
      File downloadFile = new File(DOWNLOAD_FILEPATH+"/"+destinationFilename);
      if (downloadFile.exists()) {
        downloadFile.delete();
      }
    }
    return this.downloadFile(downloadFileUrl, DOWNLOAD_FILEPATH, destinationFilename);
  }
  
  public boolean downloadBluetoothModule(String downloadFileUrl, String destinationFilename) {
    if (android.os.Environment.getExternalStorageState().equals(android.os.Environment.MEDIA_MOUNTED) == false) {
      return false;
    }
    File bluetoothDir = new File(BLUETOOTH_FILEPATH);
    if (bluetoothDir.exists() == false) {
      bluetoothDir.mkdirs();
    }
    if (this.downloadFile(downloadFileUrl, "", destinationFilename) == true) {
      try {
        FileOutputStream out = new FileOutputStream(new File(destinationFilename.replace(".gz", "")));
        FileInputStream fis = new FileInputStream(destinationFilename);
        GZIPInputStream gzin = new GZIPInputStream(new BufferedInputStream(fis));
        int count;
        byte buf[] = new byte[8192];
        while ((count = gzin.read(buf, 0, 8192)) != -1) {
             //System.out.write(x);
             out.write(buf, 0, count);
        }
        out.flush();
        out.close();
        gzin.close();
        File inputFile = new File(destinationFilename);
        inputFile.delete();
      } catch (IOException e) {
        return false;
      }
      return true;
    } else
      return false;
  }
  
  public boolean downloadFile(String url, String destinationDirectory, String destinationFilename) {
    boolean filedownloaded = true;
    HttpClient client = new DefaultHttpClient();
        HttpGet request = new HttpGet(String.format(url));
        Message msg = Message.obtain();
        try {
            HttpResponse response = client.execute(request);
            StatusLine status = response.getStatusLine();
            Log.d(MSG_TAG, "Request returned status " + status);
            if (status.getStatusCode() == 200) {
              HttpEntity entity = response.getEntity();
              InputStream instream = entity.getContent();
              int fileSize = (int)entity.getContentLength();
              FileOutputStream out = new FileOutputStream(new File(destinationDirectory+"/"+destinationFilename));
              byte buf[] = new byte[8192];
              int len;
              int totalRead = 0;
              while((len = instream.read(buf)) > 0) {
                msg = Message.obtain();
                msg.what = MainActivity.MESSAGE_DOWNLOAD_PROGRESS;
                totalRead += len;
                msg.arg1 = totalRead / 1024;
                msg.arg2 = fileSize / 1024;
                MainActivity.currentInstance.viewUpdateHandler.sendMessage(msg);
                out.write(buf,0,len);
              }
              out.close();
            }
            else {
              throw new IOException();
            }
        } catch (IOException e) {
          Log.d(MSG_TAG, "Can't download file '"+url+"' to '" + destinationDirectory+"/"+destinationFilename + "'.");
          filedownloaded = false;
        }
        msg = Message.obtain();
        msg.what = MainActivity.MESSAGE_DOWNLOAD_COMPLETE;
        MainActivity.currentInstance.viewUpdateHandler.sendMessage(msg);
        return filedownloaded;
  }
}