Proxy configurators

src/org/adblockplus/android/ProxySettings.java

-/*
- * 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.lang.reflect.Constructor;
-import java.lang.reflect.Method;
-
-import android.content.Context;
-import android.content.Intent;
-import android.net.ConnectivityManager;
-import android.net.NetworkInfo;
-import android.os.Parcelable;
-import android.util.Log;
-
-public class ProxySettings
-{
-  private static final String TAG = Utils.getTag(ProxySettings.class);
-
-  public static Object getActiveLinkProxy(final ConnectivityManager connectivityManager) throws Exception
-  {
-    /*
-     * LinkProperties lp = connectivityManager.getActiveLinkProperties()
-     */
-    final Method method = connectivityManager.getClass().getMethod("getActiveLinkProperties");
-    final Object lp = method.invoke(connectivityManager);
-
-    final Object pp = ProxySettings.getLinkProxy(lp);
-    return pp;
-  }
-
-  /**
-   * Reads proxy settings from link properties on Android 3.1+ using Java
-   * reflection.
-   *
-   * @param linkProperties
-   *          android.net.LinkProperties
-   * @return ProxyProperties
-   * @throws Exception
-   */
-  public static Object getLinkProxy(final Object linkProperties) throws Exception
-  {
-    /*
-     * linkProperties.getHttpProxy();
-     */
-    final Method method = linkProperties.getClass().getMethod("getHttpProxy");
-    final Object pp = method.invoke(linkProperties);
-    return pp;
-  }
-
-  /**
-   * Reads system proxy settings on Android 3.1+ using Java reflection.
-   *
-   * @return string array of host, port and exclusion list
-   */
-  public static String[] getUserProxy(final Context context)
-  {
-    Method method = null;
-    try
-    {
-      /*
-       * ProxyProperties proxyProperties = ConnectivityManager.getProxy();
-       */
-      method = ConnectivityManager.class.getMethod("getProxy");
-    }
-    catch (final NoSuchMethodException e)
-    {
-      // This is normal situation for pre-ICS devices
-      return null;
-    }
-    catch (final Exception e)
-    {
-      // This should not happen
-      Log.e(TAG, "getProxy failure", e);
-      return null;
-    }
-
-    try
-    {
-      final ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
-      final Object pp = method.invoke(connectivityManager);
-      if (pp == null)
-        return null;
-
-      return getUserProxy(pp);
-    }
-    catch (final Exception e)
-    {
-      // This should not happen
-      Log.e(TAG, "getProxy failure", e);
-      return null;
-    }
-  }
-
-  /**
-   * Reads system proxy settings on Android 3.1+ using Java reflection.
-   *
-   * @param pp
-   *          ProxyProperties object
-   * @return string array of host, port and exclusion list
-   * @throws Exception
-   */
-  protected static String[] getUserProxy(final Object pp) throws Exception
-  {
-    final String[] userProxy = new String[3];
-
-    final String className = "android.net.ProxyProperties";
-    final Class<?> c = Class.forName(className);
-    Method method;
-
-    /*
-     * String proxyHost = pp.getHost()
-     */
-    method = c.getMethod("getHost");
-    userProxy[0] = (String) method.invoke(pp);
-
-    /*
-     * int proxyPort = pp.getPort();
-     */
-    method = c.getMethod("getPort");
-    userProxy[1] = String.valueOf(method.invoke(pp));
-
-    /*
-     * String proxyEL = pp.getExclusionList()
-     */
-    method = c.getMethod("getExclusionList");
-    userProxy[2] = (String) method.invoke(pp);
-
-    if (userProxy[0] != null)
-      return userProxy;
-    else
-      return null;
-  }
-
-  /**
-   * Tries to set local proxy in system settings via native call on Android 3.1+
-   * devices using Java reflection.
-   *
-   * @return true if device supports native proxy setting
-   */
-  public static boolean setConnectionProxy(final Context context, final String host, final int port, final String excl)
-  {
-    Method method = null;
-    try
-    {
-      /*
-       * android.net.LinkProperties lp =
-       * ConnectivityManager.getActiveLinkProperties();
-       */
-      method = ConnectivityManager.class.getMethod("getActiveLinkProperties");
-    }
-    catch (final NoSuchMethodException e)
-    {
-      // This is normal situation for pre-ICS devices
-      return false;
-    }
-    catch (final Exception e)
-    {
-      // This should not happen
-      Log.e(TAG, "setHttpProxy failure", e);
-      return false;
-    }
-    try
-    {
-      final ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
-      final Object lp = method.invoke(connectivityManager);
-      // There is no active link now, but device has native proxy support
-      if (lp == null)
-        return true;
-
-      final String className = "android.net.ProxyProperties";
-      final Class<?> c = Class.forName(className);
-      method = lp.getClass().getMethod("setHttpProxy", c);
-      if (host != null)
-      {
-        /*
-         * ProxyProperties pp = new ProxyProperties(host, port, excl);
-         */
-        final Class<?>[] parameter = new Class[] { String.class, int.class, String.class };
-        final Object args[] = new Object[3];
-        args[0] = host;
-        args[1] = Integer.valueOf(port);
-        args[2] = excl;
-        final Constructor<?> cons = c.getConstructor(parameter);
-        final Object pp = cons.newInstance(args);
-        /*
-         * lp.setHttpProxy(pp);
-         */
-        method.invoke(lp, pp);
-      }
-      else
-      {
-        /*
-         * lp.setHttpProxy(null);
-         */
-        method.invoke(lp, new Object[] { null });
-      }
-
-      Intent intent = null;
-      final NetworkInfo ni = connectivityManager.getActiveNetworkInfo();
-      switch (ni.getType())
-      {
-        case ConnectivityManager.TYPE_WIFI:
-          intent = new Intent("android.net.wifi.LINK_CONFIGURATION_CHANGED");
-          break;
-        case ConnectivityManager.TYPE_MOBILE:
-          // TODO We leave it here for future, it does not work now
-          // intent = new Intent("android.intent.action.ANY_DATA_STATE");
-          break;
-      }
-      if (intent != null)
-      {
-        if (lp != null)
-        {
-          intent.putExtra("linkProperties", (Parcelable) lp);
-        }
-        context.sendBroadcast(intent);
-      }
-
-      return true;
-    }
-    catch (final SecurityException e)
-    {
-      // This is ok for 4.1.2+, 4.2.2+ and later
-      return false;
-    }
-    catch (final Exception e)
-    {
-      // This should not happen
-      Log.e(TAG, "setHttpProxy failure", e);
-      return false;
-    }
-  }
-}