/src/android/tether/usb/system/WebserviceTask.java

/**

 *  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, Seth Lemons and Ben Buxton.

 */



package android.tether.usb.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.usb.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;

	}

}