Line endings, whitespace, imports and casts cleanup

src/org/adblockplus/android/AdblockPlus.java

Index: src/org/adblockplus/android/AdblockPlus.java
diff --git a/src/org/adblockplus/android/AdblockPlus.java b/src/org/adblockplus/android/AdblockPlus.java
index 549908932f4f440cc247ad0854c62238969f584d..61d9cb7ad056b118f47aeccbfe6104749925f8f7 100755
--- a/src/org/adblockplus/android/AdblockPlus.java
+++ b/src/org/adblockplus/android/AdblockPlus.java
@@ -1,561 +1,561 @@
-/*
- * 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;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.util.ArrayList;
-import java.util.Calendar;
-import java.util.LinkedHashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.TimeZone;
-import java.util.regex.Pattern;
-
-import org.adblockplus.android.updater.AlarmReceiver;
-
-import android.app.ActivityManager;
-import android.app.ActivityManager.RunningServiceInfo;
-import android.app.AlarmManager;
-import android.app.Application;
-import android.app.PendingIntent;
-import android.content.Context;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.content.SharedPreferences.Editor;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.PackageManager.NameNotFoundException;
-import android.net.ConnectivityManager;
-import android.net.NetworkInfo;
-import android.net.Uri;
-import android.os.Build;
-import android.preference.PreferenceManager;
-import android.provider.Settings;
-import android.util.Log;
-
-public class AdblockPlus extends Application
-{
-  private final static String TAG = "Application";
-
-  private final static Pattern RE_JS = Pattern.compile(".*\\.js$", Pattern.CASE_INSENSITIVE);
-  private final static Pattern RE_CSS = Pattern.compile(".*\\.css$", Pattern.CASE_INSENSITIVE);
-  private final static Pattern RE_IMAGE = Pattern.compile(".*\\.(?:gif|png|jpe?g|bmp|ico)$", Pattern.CASE_INSENSITIVE);
-  private final static Pattern RE_FONT = Pattern.compile(".*\\.(?:ttf|woff)$", Pattern.CASE_INSENSITIVE);
-  private final static Pattern RE_HTML = Pattern.compile(".*\\.html?$", Pattern.CASE_INSENSITIVE);
-
-  /**
-   * Broadcasted when filtering is enabled or disabled.
-   */
-  public static final String BROADCAST_FILTERING_CHANGE = "org.adblockplus.android.filtering.status";
-  /**
-   * Broadcasted when subscription status changes.
-   */
-  public final static String BROADCAST_SUBSCRIPTION_STATUS = "org.adblockplus.android.subscription.status";
-  /**
-   * Broadcasted when filter match check is performed.
-   */
-  public final static String BROADCAST_FILTER_MATCHES = "org.adblockplus.android.filter.matches";
-
-  /**
-   * Cached list of recommended subscriptions.
-   */
-  private Subscription[] subscriptions;
-
-  /**
-   * Indicates whether filtering is enabled or not.
-   */
-  private boolean filteringEnabled = false;
-
-  private ABPEngine abpEngine;
-  
-  private static AdblockPlus instance;
-  
-  private static class ReferrerMappingCache extends LinkedHashMap<String, String>
-  {
-    private static final long serialVersionUID = 1L;
-    private static final int MAX_SIZE = 5000;
-
-    public ReferrerMappingCache()
-    {
-      super(MAX_SIZE + 1, 0.75f, true);
-    }
-
-    @Override
-    protected boolean removeEldestEntry(Map.Entry<String, String> eldest)
-    {
-      return size() > MAX_SIZE;
-    }
-  };
-
-  private ReferrerMappingCache referrerMapping = new ReferrerMappingCache();
-
-  /**
-   * Returns pointer to itself (singleton pattern).
-   */
-  public static AdblockPlus getApplication()
-  {
-    return instance;
-  }
-
-  public int getBuildNumber()
-  {
-    int buildNumber = -1;
-    try
-    {
-      PackageInfo pi = getPackageManager().getPackageInfo(getPackageName(), 0);
-      buildNumber = pi.versionCode;
-    }
-    catch (NameNotFoundException e)
-    {
-      // ignore - this shouldn't happen
-      Log.e(TAG, e.getMessage(), e);
-    }
-    return buildNumber;
-  }
-
-  /**
-   * Opens Android application settings
-   */
-  public static void showAppDetails(Context context)
-  {
-    String packageName = context.getPackageName();
-    Intent intent = new Intent();
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD)
-    {
-      // above 2.3
-      intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
-      Uri uri = Uri.fromParts("package", packageName, null);
-      intent.setData(uri);
-    }
-    else
-    {
-      // below 2.3
-      final String appPkgName = (Build.VERSION.SDK_INT == Build.VERSION_CODES.FROYO ? "pkg" : "com.android.settings.ApplicationPkgName");
-      intent.setAction(Intent.ACTION_VIEW);
-      intent.setClassName("com.android.settings", "com.android.settings.InstalledAppDetails");
-      intent.putExtra(appPkgName, packageName);
-    }
-    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-    context.startActivity(intent);
-  }
-
-  /**
-   * Returns device name in user-friendly format
-   */
-  public static String getDeviceName()
-  {
-    String manufacturer = Build.MANUFACTURER;
-    String model = Build.MODEL;
-    if (model.startsWith(manufacturer))
-      return capitalize(model);
-    else
-      return capitalize(manufacturer) + " " + model;
-  }
-
-  public static void appendRawTextFile(Context context, StringBuilder text, int id)
-  {
-    InputStream inputStream = context.getResources().openRawResource(id);
-    InputStreamReader in = new InputStreamReader(inputStream);
-    BufferedReader buf = new BufferedReader(in);
-    String line;
-    try
-    {
-      while ((line = buf.readLine()) != null)
-        text.append(line);
-    }
-    catch (IOException e)
-    {
-      e.printStackTrace();
-    }
-  }
-
-  private static String capitalize(String s)
-  {
-    if (s == null || s.length() == 0)
-      return "";
-    char first = s.charAt(0);
-    if (Character.isUpperCase(first))
-      return s;
-    else
-      return Character.toUpperCase(first) + s.substring(1);
-  }
-
-  /**
-   * Checks if device has a WiFi connection available.
-   */
-  public static boolean isWiFiConnected(Context context)
-  {
-    ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
-    NetworkInfo networkInfo = null;
-    if (connectivityManager != null)
-    {
-      networkInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
-    }
-    return networkInfo == null ? false : networkInfo.isConnected();
-  }
-  
-  /**
-   * Checks if ProxyService is running.
-   * 
-   * @return true if service is running
-   */
-  public boolean isServiceRunning()
-  {
-    ActivityManager manager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
-    // Actually it returns not only running services, so extra check is required
-    for (RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE))
-    {
-      if (service.service.getClassName().equals(ProxyService.class.getCanonicalName()) && service.pid > 0)
-        return true;
-    }
-    return false;
-  }
-
-  /**
-   * Checks if application can write to external storage.
-   */
-  public boolean checkWriteExternalPermission()
-  {
-    String permission = "android.permission.WRITE_EXTERNAL_STORAGE";
-    int res = checkCallingOrSelfPermission(permission);
-    return res == PackageManager.PERMISSION_GRANTED;
-  }
-
-  public boolean isFirstRun()
-  {
-    return abpEngine.isFirstRun();
-  }
-
-  /**
-   * Returns list of known subscriptions.
-   */
-  public Subscription[] getRecommendedSubscriptions()
-  {
-    if (subscriptions == null)
-      subscriptions = abpEngine.getRecommendedSubscriptions();
-    return subscriptions;
-  }
-
-  /**
-   * Returns list of enabled subscriptions.
-   */
-  public Subscription[] getListedSubscriptions()
-  {
-    return abpEngine.getListedSubscriptions();    
-  }
-
-  /**
-   * Adds provided subscription and removes previous subscriptions if any.
-   * 
-   * @param url
-   *          URL of subscription to add
-   */
-  public void setSubscription(String url)
-  {
-    Subscription[] subscriptions = abpEngine.getListedSubscriptions();    
-    for (Subscription subscription : subscriptions)
-    {
-      abpEngine.removeSubscription(subscription.url);
-    }
-    abpEngine.addSubscription(url);
-  }
-
-  /**
-   * Forces subscriptions refresh.
-   */
-  public void refreshSubscriptions()
-  {
-    Subscription[] subscriptions = abpEngine.getListedSubscriptions();
-    for (Subscription subscription : subscriptions)
-    {
-      abpEngine.refreshSubscription(subscription.url);
-    }
-  }
-  
-  /**
-   * Enforces subscription status update.
-   * 
-   * @param url Subscription url
-   */
-  public void actualizeSubscriptionStatus(String url)
-  {
-    abpEngine.actualizeSubscriptionStatus(url);
-  }
-
-
-  /**
-   * Enables or disables Acceptable Ads
-   */
-  public void setAcceptableAdsEnabled(boolean enabled)
-  {
-    abpEngine.setAcceptableAdsEnabled(enabled);
-  }
-
-  public String getAcceptableAdsUrl()
-  {
-    final String documentationLink = abpEngine.getDocumentationLink();
-    final String locale = getResources().getConfiguration().locale.toString().replace("_", "-");
-    return documentationLink.replace("%LINK%", "acceptable_ads").replace("%LANG%", locale);
-  }
-
-  public void setNotifiedAboutAcceptableAds(boolean notified)
-  {
-    final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
-    final Editor editor = preferences.edit();
-    editor.putBoolean("notified_about_acceptable_ads", notified);
-    editor.commit();
-  }
-
-  public boolean isNotifiedAboutAcceptableAds()
-  {
-    final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
-    return preferences.getBoolean("notified_about_acceptable_ads", false);
-  }
-
-  /**
-   * Returns ElemHide selectors for domain.
-   *
-   * @param domain The domain
-   * @return A list of CSS selectors
-   */
-  public String[] getSelectorsForDomain(final String domain)
-  {
-    /* We need to ignore element hiding rules here to work around two bugs:
-     * 1. CSS is being injected even when there's an exception rule with $elemhide
-     * 2. The injected CSS causes blank pages in Chrome for Android
-     *
-     * Starting with 1.1.2, we ignored element hiding rules after download anyway, to keep the
-     * memory usage down. Doing this with libadblockplus is trickier, but would be the clean
-     * solution. */
-    return null;
-/*
-    if (!filteringEnabled)
-      return null;
-
-    return abpEngine.getSelectorsForDomain(domain);
-*/
-  }
-
-  /**
-   * Checks if filters match request parameters.
-   * 
-   * @param url
-   *          Request URL
-   * @param query
-   *          Request query string
-   * @param referrer
-   *          Request referrer header
-   * @param accept
-   *          Request accept header
-   * @return true if matched filter was found
-   * @throws Exception
-   */
-  public boolean matches(String url, String query, String referrer, String accept)
-  {
-    final String fullUrl = !"".equals(query) ? url + "?" + query : url;
-    if (referrer != null)
-      referrerMapping.put(fullUrl, referrer);
-
-    if (!filteringEnabled)
-      return false;
-    
-    String contentType = null;
-
-    if (accept != null)
-    {
-      if (accept.contains("text/css"))
-        contentType = "STYLESHEET";
-      else if (accept.contains("image/*"))
-        contentType = "IMAGE";
-      else if (accept.contains("text/html"))
-        contentType = "SUBDOCUMENT";
-    }
-
-    if (contentType == null)
-    {
-      if (RE_JS.matcher(url).matches())
-        contentType = "SCRIPT";
-      else if (RE_CSS.matcher(url).matches())
-        contentType = "STYLESHEET";
-      else if (RE_IMAGE.matcher(url).matches())
-        contentType = "IMAGE";
-      else if (RE_FONT.matcher(url).matches())
-        contentType = "FONT";
-      else if (RE_HTML.matcher(url).matches())
-        contentType = "SUBDOCUMENT";
-    }
-    if (contentType == null)
-      contentType = "OTHER";
-
-    final List<String> referrerChain = buildReferrerChain(referrer);
-    Log.d("Referrer chain", fullUrl + ": " + referrerChain.toString());
-    String[] referrerChainArray = referrerChain.toArray(new String[referrerChain.size()]);
-    return abpEngine.matches(fullUrl, contentType, referrerChainArray);
-  }
-
-  private List<String> buildReferrerChain(String url)
-  {
-    final List<String> referrerChain = new ArrayList<String>();
-    // We need to limit the chain length to ensure we don't block indefinitely if there's
-    // a referrer loop.
-    final int maxChainLength = 10;
-    for (int i = 0; i < maxChainLength && url != null; i++)
-    {
-      referrerChain.add(0, url);
-      url = referrerMapping.get(url);
-    }
-    return referrerChain;
-  }
-
-  /**
-   * Checks if filtering is enabled.
-   */
-  public boolean isFilteringEnabled()
-  {
-    return filteringEnabled;
-  }
-
-  /**
-   * Enables or disables filtering.
-   */
-  public void setFilteringEnabled(boolean enable)
-  {
-    filteringEnabled = enable;
-    sendBroadcast(new Intent(BROADCAST_FILTERING_CHANGE).putExtra("enabled", filteringEnabled));
-  }
-  
-  /**
-   * Starts ABP engine. It also initiates subscription refresh if it is enabled
-   * in user settings.
-   */
-  public void startEngine()
-  {
-    if (abpEngine == null)
-    {
-      File basePath = getFilesDir();
-      abpEngine = new ABPEngine(this, basePath.getAbsolutePath());
-    }
-  }
-
-  /**
-   * Stops ABP engine.
-   */
-  public void stopEngine()
-  {
-    if (abpEngine != null)
-    {
-      abpEngine.release();
-      abpEngine = null;
-      Log.i(TAG, "stopEngine");
-    }
-  }
-
-  /**
-   * Initiates immediate interactive check for available update.
-   */
-  public void checkUpdates()
-  {
-    abpEngine.checkUpdates();
-  }
-
-  /**
-   * Sets Alarm to call updater after specified number of minutes or after one
-   * day if
-   * minutes are set to 0.
-   * 
-   * @param minutes
-   *          number of minutes to wait
-   */
-  public void scheduleUpdater(int minutes)
-  {
-    Calendar updateTime = Calendar.getInstance();
-
-    if (minutes == 0)
-    {
-      // Start update checks at 10:00 GMT...
-      updateTime.setTimeZone(TimeZone.getTimeZone("GMT"));
-      updateTime.set(Calendar.HOUR_OF_DAY, 10);
-      updateTime.set(Calendar.MINUTE, 0);
-      // ...next day
-      updateTime.add(Calendar.HOUR_OF_DAY, 24);
-      // Spread out the “mass downloading” for 6 hours
-      updateTime.add(Calendar.MINUTE, (int) (Math.random() * 60 * 6));
-    }
-    else
-    {
-      updateTime.add(Calendar.MINUTE, minutes);
-    }
-
-    Intent updater = new Intent(this, AlarmReceiver.class);
-    PendingIntent recurringUpdate = PendingIntent.getBroadcast(this, 0, updater, PendingIntent.FLAG_CANCEL_CURRENT);
-    // Set non-waking alarm
-    AlarmManager alarms = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
-    alarms.set(AlarmManager.RTC, updateTime.getTimeInMillis(), recurringUpdate);
-  }
-
-  @Override
-  public void onCreate()
-  {
-    super.onCreate();
-    instance = this;
-
-    // Check for crash report
-    try
-    {
-      InputStreamReader reportFile = new InputStreamReader(openFileInput(CrashHandler.REPORT_FILE));
-      final char[] buffer = new char[0x1000];
-      StringBuilder out = new StringBuilder();
-      int read;
-      do
-      {
-        read = reportFile.read(buffer, 0, buffer.length);
-        if (read > 0)
-          out.append(buffer, 0, read);
-      }
-      while (read >= 0);
-      String report = out.toString();
-      if (!"".equals(report))
-      {
-        final Intent intent = new Intent(this, CrashReportDialog.class);
-        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        intent.putExtra("report", report);
-        startActivity(intent);
-      }
-    }
-    catch (FileNotFoundException e)
-    {
-      // ignore
-    }
-    catch (IOException e)
-    {
-      // TODO Auto-generated catch block
-      Log.e(TAG, e.getMessage(), e);
-    }
-
-    // Set crash handler
-    Thread.setDefaultUncaughtExceptionHandler(new CrashHandler(this));
-
-    // Initiate update check
-    scheduleUpdater(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;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.TimeZone;
+import java.util.regex.Pattern;
+
+import org.adblockplus.android.updater.AlarmReceiver;
+
+import android.app.ActivityManager;
+import android.app.ActivityManager.RunningServiceInfo;
+import android.app.AlarmManager;
+import android.app.Application;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.Editor;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
+import android.net.Uri;
+import android.os.Build;
+import android.preference.PreferenceManager;
+import android.provider.Settings;
+import android.util.Log;
+
+public class AdblockPlus extends Application
+{
+  private final static String TAG = "Application";
+
+  private final static Pattern RE_JS = Pattern.compile(".*\\.js$", Pattern.CASE_INSENSITIVE);
+  private final static Pattern RE_CSS = Pattern.compile(".*\\.css$", Pattern.CASE_INSENSITIVE);
+  private final static Pattern RE_IMAGE = Pattern.compile(".*\\.(?:gif|png|jpe?g|bmp|ico)$", Pattern.CASE_INSENSITIVE);
+  private final static Pattern RE_FONT = Pattern.compile(".*\\.(?:ttf|woff)$", Pattern.CASE_INSENSITIVE);
+  private final static Pattern RE_HTML = Pattern.compile(".*\\.html?$", Pattern.CASE_INSENSITIVE);
+
+  /**
+   * Broadcasted when filtering is enabled or disabled.
+   */
+  public static final String BROADCAST_FILTERING_CHANGE = "org.adblockplus.android.filtering.status";
+  /**
+   * Broadcasted when subscription status changes.
+   */
+  public final static String BROADCAST_SUBSCRIPTION_STATUS = "org.adblockplus.android.subscription.status";
+  /**
+   * Broadcasted when filter match check is performed.
+   */
+  public final static String BROADCAST_FILTER_MATCHES = "org.adblockplus.android.filter.matches";
+
+  /**
+   * Cached list of recommended subscriptions.
+   */
+  private Subscription[] subscriptions;
+
+  /**
+   * Indicates whether filtering is enabled or not.
+   */
+  private boolean filteringEnabled = false;
+
+  private ABPEngine abpEngine;
+
+  private static AdblockPlus instance;
+
+  private static class ReferrerMappingCache extends LinkedHashMap<String, String>
+  {
+    private static final long serialVersionUID = 1L;
+    private static final int MAX_SIZE = 5000;
+
+    public ReferrerMappingCache()
+    {
+      super(MAX_SIZE + 1, 0.75f, true);
+    }
+
+    @Override
+    protected boolean removeEldestEntry(Map.Entry<String, String> eldest)
+    {
+      return size() > MAX_SIZE;
+    }
+  };
+
+  private ReferrerMappingCache referrerMapping = new ReferrerMappingCache();
+
+  /**
+   * Returns pointer to itself (singleton pattern).
+   */
+  public static AdblockPlus getApplication()
+  {
+    return instance;
+  }
+
+  public int getBuildNumber()
+  {
+    int buildNumber = -1;
+    try
+    {
+      PackageInfo pi = getPackageManager().getPackageInfo(getPackageName(), 0);
+      buildNumber = pi.versionCode;
+    }
+    catch (NameNotFoundException e)
+    {
+      // ignore - this shouldn't happen
+      Log.e(TAG, e.getMessage(), e);
+    }
+    return buildNumber;
+  }
+
+  /**
+   * Opens Android application settings
+   */
+  public static void showAppDetails(Context context)
+  {
+    String packageName = context.getPackageName();
+    Intent intent = new Intent();
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD)
+    {
+      // above 2.3
+      intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
+      Uri uri = Uri.fromParts("package", packageName, null);
+      intent.setData(uri);
+    }
+    else
+    {
+      // below 2.3
+      final String appPkgName = (Build.VERSION.SDK_INT == Build.VERSION_CODES.FROYO ? "pkg" : "com.android.settings.ApplicationPkgName");
+      intent.setAction(Intent.ACTION_VIEW);
+      intent.setClassName("com.android.settings", "com.android.settings.InstalledAppDetails");
+      intent.putExtra(appPkgName, packageName);
+    }
+    intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+    context.startActivity(intent);
+  }
+
+  /**
+   * Returns device name in user-friendly format
+   */
+  public static String getDeviceName()
+  {
+    String manufacturer = Build.MANUFACTURER;
+    String model = Build.MODEL;
+    if (model.startsWith(manufacturer))
+      return capitalize(model);
+    else
+      return capitalize(manufacturer) + " " + model;
+  }
+
+  public static void appendRawTextFile(Context context, StringBuilder text, int id)
+  {
+    InputStream inputStream = context.getResources().openRawResource(id);
+    InputStreamReader in = new InputStreamReader(inputStream);
+    BufferedReader buf = new BufferedReader(in);
+    String line;
+    try
+    {
+      while ((line = buf.readLine()) != null)
+        text.append(line);
+    }
+    catch (IOException e)
+    {
+      e.printStackTrace();
+    }
+  }
+
+  private static String capitalize(String s)
+  {
+    if (s == null || s.length() == 0)
+      return "";
+    char first = s.charAt(0);
+    if (Character.isUpperCase(first))
+      return s;
+    else
+      return Character.toUpperCase(first) + s.substring(1);
+  }
+
+  /**
+   * Checks if device has a WiFi connection available.
+   */
+  public static boolean isWiFiConnected(Context context)
+  {
+    ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
+    NetworkInfo networkInfo = null;
+    if (connectivityManager != null)
+    {
+      networkInfo = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
+    }
+    return networkInfo == null ? false : networkInfo.isConnected();
+  }
+
+  /**
+   * Checks if ProxyService is running.
+   *
+   * @return true if service is running
+   */
+  public boolean isServiceRunning()
+  {
+    ActivityManager manager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
+    // Actually it returns not only running services, so extra check is required
+    for (RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE))
+    {
+      if (service.service.getClassName().equals(ProxyService.class.getCanonicalName()) && service.pid > 0)
+        return true;
+    }
+    return false;
+  }
+
+  /**
+   * Checks if application can write to external storage.
+   */
+  public boolean checkWriteExternalPermission()
+  {
+    String permission = "android.permission.WRITE_EXTERNAL_STORAGE";
+    int res = checkCallingOrSelfPermission(permission);
+    return res == PackageManager.PERMISSION_GRANTED;
+  }
+
+  public boolean isFirstRun()
+  {
+    return abpEngine.isFirstRun();
+  }
+
+  /**
+   * Returns list of known subscriptions.
+   */
+  public Subscription[] getRecommendedSubscriptions()
+  {
+    if (subscriptions == null)
+      subscriptions = abpEngine.getRecommendedSubscriptions();
+    return subscriptions;
+  }
+
+  /**
+   * Returns list of enabled subscriptions.
+   */
+  public Subscription[] getListedSubscriptions()
+  {
+    return abpEngine.getListedSubscriptions();
+  }
+
+  /**
+   * Adds provided subscription and removes previous subscriptions if any.
+   *
+   * @param url
+   *          URL of subscription to add
+   */
+  public void setSubscription(String url)
+  {
+    Subscription[] subscriptions = abpEngine.getListedSubscriptions();
+    for (Subscription subscription : subscriptions)
+    {
+      abpEngine.removeSubscription(subscription.url);
+    }
+    abpEngine.addSubscription(url);
+  }
+
+  /**
+   * Forces subscriptions refresh.
+   */
+  public void refreshSubscriptions()
+  {
+    Subscription[] subscriptions = abpEngine.getListedSubscriptions();
+    for (Subscription subscription : subscriptions)
+    {
+      abpEngine.refreshSubscription(subscription.url);
+    }
+  }
+
+  /**
+   * Enforces subscription status update.
+   *
+   * @param url Subscription url
+   */
+  public void actualizeSubscriptionStatus(String url)
+  {
+    abpEngine.actualizeSubscriptionStatus(url);
+  }
+
+
+  /**
+   * Enables or disables Acceptable Ads
+   */
+  public void setAcceptableAdsEnabled(boolean enabled)
+  {
+    abpEngine.setAcceptableAdsEnabled(enabled);
+  }
+
+  public String getAcceptableAdsUrl()
+  {
+    final String documentationLink = abpEngine.getDocumentationLink();
+    final String locale = getResources().getConfiguration().locale.toString().replace("_", "-");
+    return documentationLink.replace("%LINK%", "acceptable_ads").replace("%LANG%", locale);
+  }
+
+  public void setNotifiedAboutAcceptableAds(boolean notified)
+  {
+    final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
+    final Editor editor = preferences.edit();
+    editor.putBoolean("notified_about_acceptable_ads", notified);
+    editor.commit();
+  }
+
+  public boolean isNotifiedAboutAcceptableAds()
+  {
+    final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);
+    return preferences.getBoolean("notified_about_acceptable_ads", false);
+  }
+
+  /**
+   * Returns ElemHide selectors for domain.
+   *
+   * @param domain The domain
+   * @return A list of CSS selectors
+   */
+  public String[] getSelectorsForDomain(final String domain)
+  {
+    /* We need to ignore element hiding rules here to work around two bugs:
+     * 1. CSS is being injected even when there's an exception rule with $elemhide
+     * 2. The injected CSS causes blank pages in Chrome for Android
+     *
+     * Starting with 1.1.2, we ignored element hiding rules after download anyway, to keep the
+     * memory usage down. Doing this with libadblockplus is trickier, but would be the clean
+     * solution. */
+    return null;
+/*
+    if (!filteringEnabled)
+      return null;
+
+    return abpEngine.getSelectorsForDomain(domain);
+*/
+  }
+
+  /**
+   * Checks if filters match request parameters.
+   *
+   * @param url
+   *          Request URL
+   * @param query
+   *          Request query string
+   * @param referrer
+   *          Request referrer header
+   * @param accept
+   *          Request accept header
+   * @return true if matched filter was found
+   * @throws Exception
+   */
+  public boolean matches(String url, String query, String referrer, String accept)
+  {
+    final String fullUrl = !"".equals(query) ? url + "?" + query : url;
+    if (referrer != null)
+      referrerMapping.put(fullUrl, referrer);
+
+    if (!filteringEnabled)
+      return false;
+
+    String contentType = null;
+
+    if (accept != null)
+    {
+      if (accept.contains("text/css"))
+        contentType = "STYLESHEET";
+      else if (accept.contains("image/*"))
+        contentType = "IMAGE";
+      else if (accept.contains("text/html"))
+        contentType = "SUBDOCUMENT";
+    }
+
+    if (contentType == null)
+    {
+      if (RE_JS.matcher(url).matches())
+        contentType = "SCRIPT";
+      else if (RE_CSS.matcher(url).matches())
+        contentType = "STYLESHEET";
+      else if (RE_IMAGE.matcher(url).matches())
+        contentType = "IMAGE";
+      else if (RE_FONT.matcher(url).matches())
+        contentType = "FONT";
+      else if (RE_HTML.matcher(url).matches())
+        contentType = "SUBDOCUMENT";
+    }
+    if (contentType == null)
+      contentType = "OTHER";
+
+    final List<String> referrerChain = buildReferrerChain(referrer);
+    Log.d("Referrer chain", fullUrl + ": " + referrerChain.toString());
+    String[] referrerChainArray = referrerChain.toArray(new String[referrerChain.size()]);
+    return abpEngine.matches(fullUrl, contentType, referrerChainArray);
+  }
+
+  private List<String> buildReferrerChain(String url)
+  {
+    final List<String> referrerChain = new ArrayList<String>();
+    // We need to limit the chain length to ensure we don't block indefinitely if there's
+    // a referrer loop.
+    final int maxChainLength = 10;
+    for (int i = 0; i < maxChainLength && url != null; i++)
+    {
+      referrerChain.add(0, url);
+      url = referrerMapping.get(url);
+    }
+    return referrerChain;
+  }
+
+  /**
+   * Checks if filtering is enabled.
+   */
+  public boolean isFilteringEnabled()
+  {
+    return filteringEnabled;
+  }
+
+  /**
+   * Enables or disables filtering.
+   */
+  public void setFilteringEnabled(boolean enable)
+  {
+    filteringEnabled = enable;
+    sendBroadcast(new Intent(BROADCAST_FILTERING_CHANGE).putExtra("enabled", filteringEnabled));
+  }
+
+  /**
+   * Starts ABP engine. It also initiates subscription refresh if it is enabled
+   * in user settings.
+   */
+  public void startEngine()
+  {
+    if (abpEngine == null)
+    {
+      File basePath = getFilesDir();
+      abpEngine = new ABPEngine(this, basePath.getAbsolutePath());
+    }
+  }
+
+  /**
+   * Stops ABP engine.
+   */
+  public void stopEngine()
+  {
+    if (abpEngine != null)
+    {
+      abpEngine.release();
+      abpEngine = null;
+      Log.i(TAG, "stopEngine");
+    }
+  }
+
+  /**
+   * Initiates immediate interactive check for available update.
+   */
+  public void checkUpdates()
+  {
+    abpEngine.checkUpdates();
+  }
+
+  /**
+   * Sets Alarm to call updater after specified number of minutes or after one
+   * day if
+   * minutes are set to 0.
+   *
+   * @param minutes
+   *          number of minutes to wait
+   */
+  public void scheduleUpdater(int minutes)
+  {
+    Calendar updateTime = Calendar.getInstance();
+
+    if (minutes == 0)
+    {
+      // Start update checks at 10:00 GMT...
+      updateTime.setTimeZone(TimeZone.getTimeZone("GMT"));
+      updateTime.set(Calendar.HOUR_OF_DAY, 10);
+      updateTime.set(Calendar.MINUTE, 0);
+      // ...next day
+      updateTime.add(Calendar.HOUR_OF_DAY, 24);
+      // Spread out the “mass downloading” for 6 hours
+      updateTime.add(Calendar.MINUTE, (int) (Math.random() * 60 * 6));
+    }
+    else
+    {
+      updateTime.add(Calendar.MINUTE, minutes);
+    }
+
+    Intent updater = new Intent(this, AlarmReceiver.class);
+    PendingIntent recurringUpdate = PendingIntent.getBroadcast(this, 0, updater, PendingIntent.FLAG_CANCEL_CURRENT);
+    // Set non-waking alarm
+    AlarmManager alarms = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
+    alarms.set(AlarmManager.RTC, updateTime.getTimeInMillis(), recurringUpdate);
+  }
+
+  @Override
+  public void onCreate()
+  {
+    super.onCreate();
+    instance = this;
+
+    // Check for crash report
+    try
+    {
+      InputStreamReader reportFile = new InputStreamReader(openFileInput(CrashHandler.REPORT_FILE));
+      final char[] buffer = new char[0x1000];
+      StringBuilder out = new StringBuilder();
+      int read;
+      do
+      {
+        read = reportFile.read(buffer, 0, buffer.length);
+        if (read > 0)
+          out.append(buffer, 0, read);
+      }
+      while (read >= 0);
+      String report = out.toString();
+      if (!"".equals(report))
+      {
+        final Intent intent = new Intent(this, CrashReportDialog.class);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        intent.putExtra("report", report);
+        startActivity(intent);
+      }
+    }
+    catch (FileNotFoundException e)
+    {
+      // ignore
+    }
+    catch (IOException e)
+    {
+      // TODO Auto-generated catch block
+      Log.e(TAG, e.getMessage(), e);
+    }
+
+    // Set crash handler
+    Thread.setDefaultUncaughtExceptionHandler(new CrashHandler(this));
+
+    // Initiate update check
+    scheduleUpdater(0);
+  }
+}