2 * Copyright 2016-2017 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
6 * Privacy Browser is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * Privacy Browser is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
20 package com.stoutner.privacybrowser.helpers;
22 import android.app.Activity;
23 import android.content.Context;
24 import android.content.DialogInterface;
25 import android.content.Intent;
26 import android.content.pm.PackageManager;
27 import android.net.Proxy;
28 import android.support.v4.content.ContextCompat;
29 import android.support.v7.app.AlertDialog;
30 import android.util.ArrayMap;
31 import android.util.Log;
33 import com.stoutner.privacybrowser.activities.MainWebView;
34 import com.stoutner.privacybrowser.R;
36 import java.lang.reflect.Field;
37 import java.lang.reflect.InvocationTargetException;
38 import java.lang.reflect.Method;
40 public class OrbotProxyHelper {
41 public static void setProxy(Context privacyBrowserContext, Activity parentActivity, String proxyHost, String proxyPort) {
42 // Set the proxy values
43 System.setProperty("http.proxyHost", proxyHost);
44 System.setProperty("http.proxyPort", proxyPort);
45 System.setProperty("https.proxyHost", proxyHost);
46 System.setProperty("https.proxyPort", proxyPort);
48 // Use reflection to apply the new proxy values.
50 Class applicationClass = Class.forName("android.app.Application");
51 Field mLoadedApkField = applicationClass.getDeclaredField("mLoadedApk");
52 // `setAccessible(true)` allows us to change the value of `mLoadedApkField`.
53 mLoadedApkField.setAccessible(true);
54 Object mLoadedApkObject = mLoadedApkField.get(privacyBrowserContext);
56 Class loadedApkClass = Class.forName("android.app.LoadedApk");
57 Field mReceiversField = loadedApkClass.getDeclaredField("mReceivers");
58 // `setAccessible(true)` allows us to change the value of `mReceiversField`.
59 mReceiversField.setAccessible(true);
61 ArrayMap receivers = (ArrayMap) mReceiversField.get(mLoadedApkObject);
63 for (Object receiverMap : receivers.values()) {
64 for (Object receiver : ((ArrayMap) receiverMap).keySet()) {
65 // We have to use `Class<?>`, which is an `unbounded wildcard parameterized type`, instead of `Class`, which is a `raw type`, or `receiveClass.getDeclaredMethod` below will produce an error.
66 Class<?> receiverClass = receiver.getClass();
67 if (receiverClass.getName().contains("ProxyChangeListener")) {
68 Method onReceiveMethod = receiverClass.getDeclaredMethod("onReceive", Context.class, Intent.class);
69 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
70 onReceiveMethod.invoke(receiver, privacyBrowserContext, intent);
74 } catch (ClassNotFoundException | NoSuchFieldException | IllegalAccessException | NoSuchMethodException | InvocationTargetException exception) {
75 Log.d("enableProxyThroughOrbot", "Exception: " + exception);
78 if (proxyPort.equals("8118")) { // Orbot proxy was turned on.
79 // Set the `appBar` background to be light blue if Orbot proxy support is enabled.
80 MainWebView.appBar.setBackgroundDrawable(ContextCompat.getDrawable(privacyBrowserContext, R.color.blue_50));
82 try { // Check to see if Orbot is installed.
83 PackageManager packageManager = privacyBrowserContext.getPackageManager();
84 packageManager.getPackageInfo("org.torproject.android", PackageManager.GET_ACTIVITIES);
86 // Send an `intent` to start Orbot. The intent will be ignored if it is already running.
87 Intent orbotIntent = new Intent("org.torproject.android.intent.action.START");
88 orbotIntent.setPackage("org.torproject.android");
89 privacyBrowserContext.sendBroadcast(orbotIntent);
90 } catch (PackageManager.NameNotFoundException exception){ // If an exception is thrown, Orbot is not installed.
91 // Build an `AlertDialog`. `R.style.LightAlertDialog` formats the color of the button text.
92 AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(parentActivity, R.style.LightAlertDialog);
93 dialogBuilder.setMessage(R.string.orbot_proxy_not_installed);
94 dialogBuilder.setPositiveButton(R.string.close, new DialogInterface.OnClickListener() {
96 public void onClick(DialogInterface dialog, int which) {
97 // Do nothing. The `AlertDialog` will close automatically.
101 // Convert `dialogBuilder` to `alertDialog` and display it on the screen.
102 AlertDialog alertDialog = dialogBuilder.create();
105 } else { // Otherwise set the default grey `appBar` background.
106 MainWebView.appBar.setBackgroundDrawable(ContextCompat.getDrawable(privacyBrowserContext, R.color.gray_100));