project_files/Android-build/SDL-android-project/src/org/hedgewars/mobile/Downloader/DownloadAsyncTask.java
--- a/project_files/Android-build/SDL-android-project/src/org/hedgewars/mobile/Downloader/DownloadAsyncTask.java Sun Oct 09 20:41:17 2011 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,212 +0,0 @@
-/*
- * Hedgewars for Android. An Android port of Hedgewars, a free turn based strategy game
- * Copyright (c) 2011 Richard Deurwaarder <xeli@xelification.com>
- *
- * 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; version 2 of the License
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-
-package org.hedgewars.mobile.Downloader;
-
-import java.io.BufferedInputStream;
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.net.HttpURLConnection;
-import java.net.URL;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipInputStream;
-
-import android.os.AsyncTask;
-import android.util.Log;
-/**
- * This is an AsyncTask which will download a zip from an URL and unzip it to a specified path
- *
- * a typical call to start the task would be new DownloadAsyncTask().execute(getExternalStorage(), "www.hedgewars.org/data.zip");
- * @author Xeli
- *
- */
-public class DownloadAsyncTask extends AsyncTask<String, Object, Long> {
-
- private final static String URL_WITHOUT_SUFFIX = "http://hedgewars.googlecode.com/files/data_5631.";
- //private final static String URL_WITHOUT_SUFFIX = "http://www.xelification.com/tmp/firebutton.";
- private final static String URL_ZIP_SUFFIX = "zip";
- private final static String URL_HASH_SUFFIX = "hash";
-
- private DownloadService service;
- private long lastUpdateMillis = 0;
-
- public DownloadAsyncTask(DownloadService _service){
- service = _service;
- }
-
- /**
- *
- * @param params - 2 Strings, first is the path where the unzipped files will be stored, second is the URL to download from
- */
- protected Long doInBackground(String... params) {
- HttpURLConnection conn = null;
- MessageDigest digester = null;
- String rootZipDest = params[0];
-
- File rootDest = new File(rootZipDest);//TODO check for nullpointer, it hints to the absence of an sdcard
- rootDest.mkdir();
-
- try {
- URL url = new URL(URL_WITHOUT_SUFFIX + URL_ZIP_SUFFIX);
- conn = (HttpURLConnection)url.openConnection();
- } catch (IOException e) {
- e.printStackTrace();
- return -1l;
- }
-
- String contentType = conn.getContentType();
-
- if(contentType == null || contentType.contains("zip")){ //Seeing as we provide the url if the contentType is unknown lets assume zips
- int bytesDecompressed = 0;
- ZipEntry entry = null;
- ZipInputStream input = null;
- int kbytesToProcess = conn.getContentLength()/1024;
-
- byte[] buffer = new byte[1024];
- service.start(kbytesToProcess);
-
- try {
- digester = MessageDigest.getInstance("MD5");
-
- } catch (NoSuchAlgorithmException e1) {
- e1.printStackTrace();
- }
-
- try{
- input = new ZipInputStream(conn.getInputStream());
- entry = input.getNextEntry();
- }catch(IOException e){
- e.printStackTrace();
- if(conn != null) conn.disconnect();
- return -1l;
- }
-
- while(entry != null){
- if(isCancelled()) break;
-
- String fileName = entry.getName();
- File f = new File(rootZipDest + fileName);
- bytesDecompressed += entry.getCompressedSize();
-
- if(entry.isDirectory()){
- f.mkdir();
- }else{
- if(f.exists()){
- f.delete();
- }
-
- FileOutputStream output = null;
- try {
- f.createNewFile();
- output = new FileOutputStream(f);
-
- int count = 0;
- while((count = input.read(buffer)) != -1){
- output.write(buffer, 0, count);
- digester.update(buffer, 0, count);
- if(System.currentTimeMillis() - lastUpdateMillis > 1000){
- lastUpdateMillis = System.currentTimeMillis();
- publishProgress(bytesDecompressed, kbytesToProcess, fileName);
- }
- }
- output.flush();
- input.closeEntry();
- } catch (FileNotFoundException e) {
- e.printStackTrace();
- if(conn != null) conn.disconnect();
- return -1l;
- } catch (IOException e) {
- e.printStackTrace();
- if(conn != null) conn.disconnect();
- return -1l;
- }finally{
- try {
- if( output != null) output.close();
- } catch (IOException e) {}
- }
- }
- try{
- entry = input.getNextEntry();
- }catch(IOException e){
- e.printStackTrace();
- if(conn != null) conn.disconnect();
- return -1l;
- }
- }//end while(entry != null)
-
- try {
- input.close();
- } catch (IOException e) {}
- }//end if contentType == "zip"
-
- if(conn != null) conn.disconnect();
-
- if(checkMD5(digester))return 0l;
- else return -1l;
- }
-
- //TODO proper result handling
- protected void onPostExecute(Long result){
- service.done(result > -1l);
- }
-
- protected void onProgressUpdate(Object...objects){
- service.update((Integer)objects[0], (Integer)objects[1], (String)objects[2]);
- }
-
- private boolean checkMD5(MessageDigest digester){
- if(digester != null) {
- byte[] messageDigest = digester.digest();
-
- try {
- URL url = new URL(URL_WITHOUT_SUFFIX + URL_HASH_SUFFIX);
- HttpURLConnection conn = (HttpURLConnection)url.openConnection();
-
- byte[] buffer = new byte[1024];//size is large enough to hold the entire hash
- BufferedInputStream bis = new BufferedInputStream(conn.getInputStream());
- int bytesRead = bis.read(buffer);
- if(bytesRead > -1){
- String hash = new String(buffer, 0, bytesRead);
- StringBuffer sb = new StringBuffer();
- Integer tmp = 0;
- for(int i = 0; i < messageDigest.length; i++){
- tmp = 0xFF & messageDigest[i];
- if(tmp < 0xF) sb.append('0');
- sb.append(Integer.toHexString(tmp));
- }
- sb.append('\n');//add newline to become identical with the hash file
-
- return hash.equals(sb.toString());
- }
- return false;
- } catch (IOException e) {
- e.printStackTrace();
- return false;
- }
- }else{
- return false;
- }
-
- }
-
-}