Issue 98 - Use the libadblockplus update mechanism

src/org/adblockplus/android/updater/AlarmReceiver.java

Index: src/org/adblockplus/android/updater/AlarmReceiver.java
===================================================================
deleted file mode 100644
--- a/src/org/adblockplus/android/updater/AlarmReceiver.java
+++ /dev/null
@@ -1,223 +0,0 @@
-/*
- * This file is part of Adblock Plus <http://adblockplus.org/>,
- * Copyright (C) 2006-2014 Eyeo GmbH
- *
- * Adblock Plus is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 3 as
- * published by the Free Software Foundation.
- *
- * Adblock Plus 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 Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package org.adblockplus.android.updater;
-
-import java.io.IOException;
-import java.io.StringReader;
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.net.URL;
-import java.util.Locale;
-
-import javax.xml.parsers.DocumentBuilder;
-import javax.xml.parsers.DocumentBuilderFactory;
-import javax.xml.parsers.ParserConfigurationException;
-
-import org.adblockplus.android.AdblockPlus;
-import org.adblockplus.android.R;
-import org.adblockplus.android.Utils;
-import org.apache.http.HttpEntity;
-import org.apache.http.HttpResponse;
-import org.apache.http.client.methods.HttpGet;
-import org.apache.http.impl.client.DefaultHttpClient;
-import org.apache.http.util.EntityUtils;
-import org.w3c.dom.Document;
-import org.w3c.dom.Element;
-import org.w3c.dom.NodeList;
-import org.xml.sax.InputSource;
-import org.xml.sax.SAXException;
-
-import android.app.Notification;
-import android.app.NotificationManager;
-import android.app.PendingIntent;
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.content.pm.PackageManager.NameNotFoundException;
-import android.net.ConnectivityManager;
-import android.net.NetworkInfo;
-import android.os.Build;
-import android.util.Log;
-
-/**
- * Processes Alarm event to check for update availability.
- */
-public class AlarmReceiver extends BroadcastReceiver
-{
-  private static final String TAG = Utils.getTag(AlarmReceiver.class);
-  private static final int NOTIFICATION_ID = R.string.app_name + 1;
-
-  @Override
-  public void onReceive(final Context context, final Intent intent)
-  {
-    Log.i(TAG, "Alarm; requesting updater service");
-
-    final AdblockPlus application = AdblockPlus.getApplication();
-
-    // Indicates manual (immediate) update check which requires response to user.
-    final boolean notify = intent.getBooleanExtra("notifynoupdate", false);
-
-    // Check network availability
-    boolean connected = false;
-    final ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
-    NetworkInfo networkInfo = null;
-    if (connectivityManager != null)
-    {
-      networkInfo = connectivityManager.getActiveNetworkInfo();
-      connected = networkInfo == null ? false : networkInfo.isConnected();
-    }
-
-    // Prepare notification
-    final NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
-    final Notification notification = new Notification();
-    notification.icon = R.drawable.ic_stat_warning;
-    notification.when = System.currentTimeMillis();
-    notification.flags |= Notification.FLAG_AUTO_CANCEL | Notification.FLAG_ONLY_ALERT_ONCE;
-    if (notify)
-      notification.flags |= Notification.DEFAULT_SOUND;
-    final PendingIntent emptyIntent = PendingIntent.getActivity(context, 0, new Intent(), 0);
-
-    // Get update info
-    if (application.checkWriteExternalPermission() && connected)
-    {
-      final Thread thread = new Thread(new Runnable()
-      {
-        @Override
-        public void run()
-        {
-          boolean success = false;
-          try
-          {
-            // Read updates manifest
-            final DefaultHttpClient httpClient = new DefaultHttpClient();
-
-            final String locale = Locale.getDefault().toString().toLowerCase();
-            final String device = AdblockPlus.getDeviceName();
-            final boolean releaseBuild = context.getResources().getBoolean(R.bool.def_release);
-            final String updateUrlTemplate = context.getString(releaseBuild ? R.string.update_url : R.string.devbuild_update_url);
-            final URL updateUrl = new URL(String.format(updateUrlTemplate, Build.VERSION.SDK_INT, AdblockPlus.getApplication().getBuildNumber(), locale, device));
-            // The following line correctly url-encodes query string parameters
-            final URI uri = new URI(updateUrl.getProtocol(), updateUrl.getUserInfo(), updateUrl.getHost(), updateUrl.getPort(), updateUrl.getPath(), updateUrl.getQuery(), updateUrl.getRef());
-            final HttpGet httpGet = new HttpGet(uri);
-
-            final HttpResponse httpResponse = httpClient.execute(httpGet);
-            final HttpEntity httpEntity = httpResponse.getEntity();
-            final String xml = EntityUtils.toString(httpEntity);
-
-            // Parse XML
-            final DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
-            final DocumentBuilder db = dbf.newDocumentBuilder();
-
-            final InputSource is = new InputSource();
-            is.setCharacterStream(new StringReader(xml));
-            final Document doc = db.parse(is);
-
-            // Find best match
-            final NodeList nl = doc.getElementsByTagName("updatecheck");
-            int newBuild = -1;
-            int newApi = -1;
-            String newUrl = null;
-            for (int i = 0; i < nl.getLength(); i++)
-            {
-              final Element e = (Element) nl.item(i);
-              final String url = e.getAttribute("package");
-              final int build = Integer.parseInt(e.getAttribute("build"));
-              final int api = Integer.parseInt(e.getAttribute("api"));
-              if (api > android.os.Build.VERSION.SDK_INT)
-                continue;
-              if ((build > newBuild) || (build == newBuild && api > newApi))
-              {
-                newBuild = build;
-                newApi = api;
-                newUrl = url;
-              }
-            }
-
-            final int thisBuild = context.getPackageManager().getPackageInfo(context.getPackageName(), 0).versionCode;
-
-            // Notify user if newer update was found
-            if (thisBuild < newBuild)
-            {
-              notification.icon = R.drawable.ic_stat_download;
-              final Intent intent = new Intent(context, UpdaterActivity.class).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-              intent.setAction("download");
-              intent.putExtra("url", newUrl);
-              intent.putExtra("build", newBuild);
-              final PendingIntent updateIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
-              notification.setLatestEventInfo(context, context.getText(R.string.app_name), context.getString(R.string.msg_update_available), updateIntent);
-              notificationManager.notify(NOTIFICATION_ID, notification);
-            }
-            // Notify user that no update was found
-            else if (notify)
-            {
-              notification.setLatestEventInfo(context, context.getText(R.string.app_name), context.getString(R.string.msg_update_missing), emptyIntent);
-              notificationManager.notify(NOTIFICATION_ID, notification);
-            }
-            success = true;
-          }
-          catch (final IOException e)
-          {
-          }
-          catch (final NumberFormatException e)
-          {
-          }
-          catch (final NameNotFoundException e)
-          {
-          }
-          catch (final ParserConfigurationException e)
-          {
-          }
-          catch (final SAXException e)
-          {
-            Log.e(TAG, "Error", e);
-          }
-          catch (final URISyntaxException e)
-          {
-            Log.e(TAG, "Error", e);
-          }
-          finally
-          {
-            if (!success)
-            {
-              // Notify user about failure
-              if (notify)
-              {
-                notification.setLatestEventInfo(context, context.getText(R.string.app_name), context.getString(R.string.msg_update_fail), emptyIntent);
-                notificationManager.notify(NOTIFICATION_ID, notification);
-              }
-            }
-            // Schedule next check
-            application.scheduleUpdater(0);
-          }
-        }
-      });
-      thread.start();
-    }
-    else
-    {
-      // Notify user about failure
-      if (notify)
-      {
-        notification.setLatestEventInfo(context, context.getText(R.string.app_name), context.getString(R.string.msg_update_fail), emptyIntent);
-        notificationManager.notify(NOTIFICATION_ID, notification);
-      }
-      // Schedule retry in 30 minutes - there is no connection available at this time
-      application.scheduleUpdater(30);
-    }
-  }
-}