Java tutorial
/* * Copyright (C) 2012 OTA Update Center * * Licensed under the Apache License, Version 2.0 (the "License"); * You may only use this file in compliance with the license and provided you are not associated with or are in co-operation anyone by the name 'X Vanderpoel'. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.otaupdater.utils; import java.io.File; import java.io.FileInputStream; import java.io.InputStream; import java.security.MessageDigest; import java.util.ArrayList; import java.util.Date; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.client.utils.URLEncodedUtils; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import org.apache.http.util.EntityUtils; import org.json.JSONObject; import android.annotation.TargetApi; import android.app.AlertDialog; import android.app.DownloadManager; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.net.Uri; import android.os.AsyncTask; import android.os.Build; import android.support.v4.app.NotificationCompat; import android.util.Log; import com.otaupdater.DownloadReceiver; import com.otaupdater.R; import com.otaupdater.TabDisplay; public class RomInfo { public String romName; public String version; public String changelog; public String url; public String md5; public Date date; public RomInfo(String romName, String version, String changelog, String downurl, String md5, Date date) { this.romName = romName; this.version = version; this.changelog = changelog; this.url = downurl; this.md5 = md5; this.date = date; } public static RomInfo fromIntent(Intent i) { return new RomInfo(i.getStringExtra("rom_info_name"), i.getStringExtra("rom_info_version"), i.getStringExtra("rom_info_changelog"), i.getStringExtra("rom_info_url"), i.getStringExtra("rom_info_md5"), Utils.parseDate(i.getStringExtra("rom_info_date"))); } public void addToIntent(Intent i) { i.putExtra("rom_info_name", romName); i.putExtra("rom_info_version", version); i.putExtra("rom_info_changelog", changelog); i.putExtra("rom_info_url", url); i.putExtra("rom_info_md5", md5); i.putExtra("rom_info_date", Utils.formatDate(date)); } public void showUpdateNotif(Context ctx) { Intent mainInent = new Intent(ctx, TabDisplay.class); mainInent.setAction(TabDisplay.ROM_NOTIF_ACTION); this.addToIntent(mainInent); PendingIntent mainPIntent = PendingIntent.getActivity(ctx, 0, mainInent, PendingIntent.FLAG_CANCEL_CURRENT); Intent dlInent = new Intent(ctx, DownloadReceiver.class); dlInent.setAction(DownloadReceiver.DL_ROM_ACTION); this.addToIntent(dlInent); PendingIntent dlPIntent = PendingIntent.getBroadcast(ctx, 0, dlInent, PendingIntent.FLAG_CANCEL_CURRENT); NotificationCompat.Builder builder = new NotificationCompat.Builder(ctx); builder.setContentIntent(mainPIntent); builder.setContentTitle(ctx.getString(R.string.notif_source)); builder.setContentText(ctx.getString(R.string.notif_text_rom)); builder.setTicker(ctx.getString(R.string.notif_text_rom)); builder.setWhen(System.currentTimeMillis()); builder.setSmallIcon(R.drawable.updates); builder.setStyle(new NotificationCompat.BigTextStyle().bigText(changelog)); builder.setPriority(NotificationCompat.PRIORITY_LOW); builder.addAction(R.drawable.ic_download_default, ctx.getString(R.string.notif_download), dlPIntent); NotificationManager nm = (NotificationManager) ctx.getSystemService(Context.NOTIFICATION_SERVICE); nm.notify(Config.ROM_NOTIF_ID, builder.build()); } public static void clearUpdateNotif(Context ctx) { NotificationManager nm = (NotificationManager) ctx.getSystemService(Context.NOTIFICATION_SERVICE); nm.cancel(Config.ROM_NOTIF_ID); } @TargetApi(11) public long fetchFile(Context ctx) { DownloadManager.Request request = new DownloadManager.Request(Uri.parse(url)); request.setTitle(ctx.getString(R.string.notif_downloading)); request.setDescription(romName); request.setVisibleInDownloadsUi(true); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { request.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED); } request.setDestinationUri(Uri.fromFile(new File(Config.ROM_DL_PATH_FILE, getDownloadFileName()))); int netTypes = DownloadManager.Request.NETWORK_WIFI; if (!Config.getInstance(ctx).getWifiOnlyDl()) netTypes |= DownloadManager.Request.NETWORK_MOBILE; request.setAllowedNetworkTypes(netTypes); DownloadManager manager = (DownloadManager) ctx.getSystemService(Context.DOWNLOAD_SERVICE); return manager.enqueue(request); } public String getDownloadFileName() { return Utils.sanitizeName(romName + "__" + version + ".zip"); } public void showUpdateDialog(final Context ctx) { AlertDialog.Builder alert = new AlertDialog.Builder(ctx); alert.setTitle(R.string.alert_update_title); alert.setMessage(ctx.getString(R.string.alert_update_rom_to, romName, version)); alert.setPositiveButton(R.string.alert_download, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int whichButton) { dialog.dismiss(); final File file = new File(Config.ROM_DL_PATH_FILE, getDownloadFileName()); if (file.exists()) { Log.v("OTA::Download", "Found old zip, checking md5"); InputStream is = null; try { is = new FileInputStream(file); MessageDigest digest = MessageDigest.getInstance("MD5"); byte[] data = new byte[4096]; int nRead = -1; while ((nRead = is.read(data)) != -1) { digest.update(data, 0, nRead); } String oldMd5 = Utils.byteArrToStr(digest.digest()); Log.v("OTA::Download", "old zip md5: " + oldMd5); if (!md5.equalsIgnoreCase(oldMd5)) { file.delete(); } else { //TODO show flash dialog return; } } catch (Exception e) { e.printStackTrace(); file.delete(); } finally { if (is != null) { try { is.close(); } catch (Exception e) { } } } } final long dlID = fetchFile(ctx); AlertDialog.Builder builder = new AlertDialog.Builder(ctx); builder.setTitle(R.string.alert_downloading); builder.setMessage(ctx.getString(R.string.alert_downloading_changelog, changelog)); builder.setCancelable(true); builder.setPositiveButton(R.string.alert_hide, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); builder.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); DownloadManager dm = (DownloadManager) ctx.getSystemService(Context.DOWNLOAD_SERVICE); dm.remove(dlID); } }); } }); alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); alert.create().show(); } public static void fetchInfo(Context ctx) { fetchInfo(ctx, null); } public static void fetchInfo(Context ctx, RomInfoListener callback) { new FetchInfoTask(ctx, callback).execute(); } protected static class FetchInfoTask extends AsyncTask<Void, Void, RomInfo> { private RomInfoListener callback = null; private Context context = null; private String error = null; public FetchInfoTask(Context ctx, RomInfoListener callback) { this.context = ctx; this.callback = callback; } @Override public void onPreExecute() { if (callback != null) callback.onStartLoading(); } @Override protected RomInfo doInBackground(Void... notused) { if (!Utils.isRomOtaEnabled()) { error = context.getString(R.string.rom_unsupported_title); return null; } if (!Utils.dataAvailable(context)) { error = context.getString(R.string.alert_nodata_title); return null; } try { ArrayList<BasicNameValuePair> params = new ArrayList<BasicNameValuePair>(); params.add(new BasicNameValuePair("device", android.os.Build.DEVICE.toLowerCase())); params.add(new BasicNameValuePair("rom", Utils.getRomOtaID())); HttpClient client = new DefaultHttpClient(); HttpGet get = new HttpGet(Config.ROM_PULL_URL + "?" + URLEncodedUtils.format(params, "UTF-8")); HttpResponse r = client.execute(get); int status = r.getStatusLine().getStatusCode(); HttpEntity e = r.getEntity(); if (status == 200) { String data = EntityUtils.toString(e); JSONObject json = new JSONObject(data); if (json.has("error")) { Log.e(Config.LOG_TAG + "Fetch", json.getString("error")); error = json.getString("error"); return null; } return new RomInfo(json.getString("rom"), json.getString("version"), json.getString("changelog"), json.getString("url"), json.getString("md5"), Utils.parseDate(json.getString("date"))); } else { if (e != null) e.consumeContent(); error = "Server responded with error " + status; return null; } } catch (Exception e) { e.printStackTrace(); error = e.getMessage(); } return null; } @Override public void onPostExecute(RomInfo result) { if (callback != null) { if (result != null) callback.onLoaded(result); else callback.onError(error); } } } public static interface RomInfoListener { void onStartLoading(); void onLoaded(RomInfo info); void onError(String err); } }