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.MainWebViewActivity;
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) {
43 // Set the proxy values
44 System.setProperty("http.proxyHost", proxyHost);
45 System.setProperty("http.proxyPort", proxyPort);
46 System.setProperty("https.proxyHost", proxyHost);
47 System.setProperty("https.proxyPort", proxyPort);
49 // Use reflection to apply the new proxy values.
51 Class applicationClass = Class.forName("android.app.Application");
52 Field mLoadedApkField = applicationClass.getDeclaredField("mLoadedApk");
53 // `setAccessible(true)` allows us to change the value of `mLoadedApkField`.
54 mLoadedApkField.setAccessible(true);
55 Object mLoadedApkObject = mLoadedApkField.get(privacyBrowserContext);
57 Class loadedApkClass = Class.forName("android.app.LoadedApk");
58 Field mReceiversField = loadedApkClass.getDeclaredField("mReceivers");
59 // `setAccessible(true)` allows us to change the value of `mReceiversField`.
60 mReceiversField.setAccessible(true);
62 ArrayMap receivers = (ArrayMap) mReceiversField.get(mLoadedApkObject);
64 for (Object receiverMap : receivers.values()) {
65 for (Object receiver : ((ArrayMap) receiverMap).keySet()) {
66 // 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.
67 Class<?> receiverClass = receiver.getClass();
68 if (receiverClass.getName().contains("ProxyChangeListener")) {
69 Method onReceiveMethod = receiverClass.getDeclaredMethod("onReceive", Context.class, Intent.class);
70 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
71 onReceiveMethod.invoke(receiver, privacyBrowserContext, intent);
75 } catch (ClassNotFoundException | NoSuchFieldException | IllegalAccessException | NoSuchMethodException | InvocationTargetException exception) {
76 Log.d("enableProxyThroughOrbot", "Exception: " + exception);
79 if (proxyPort.equals("8118")) { // Orbot proxy was turned on.
80 // Set the `appBar` background to be light blue if Orbot proxy support is enabled.
81 MainWebViewActivity.appBar.setBackgroundDrawable(ContextCompat.getDrawable(privacyBrowserContext, R.color.blue_50));
83 try { // Check to see if Orbot is installed.
84 PackageManager packageManager = privacyBrowserContext.getPackageManager();
85 packageManager.getPackageInfo("org.torproject.android", PackageManager.GET_ACTIVITIES);
87 // Ask Orbot to connect if its current status is not "ON".
88 if (!MainWebViewActivity.orbotStatus.equals("ON")) {
89 // Request Orbot to start.
90 Intent orbotIntent = new Intent("org.torproject.android.intent.action.START");
92 // Send the intent to the Orbot package.
93 orbotIntent.setPackage("org.torproject.android");
95 // Request a status response be sent back to this package.
96 orbotIntent.putExtra("org.torproject.android.intent.extra.PACKAGE_NAME", privacyBrowserContext.getPackageName());
99 privacyBrowserContext.sendBroadcast(orbotIntent);
101 } catch (PackageManager.NameNotFoundException exception){ // If an exception is thrown, Orbot is not installed.
102 // Build an `AlertDialog`. `R.style.LightAlertDialog` formats the color of the button text.
103 AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(parentActivity, R.style.LightAlertDialog);
104 dialogBuilder.setMessage(R.string.orbot_proxy_not_installed);
105 dialogBuilder.setPositiveButton(R.string.close, new DialogInterface.OnClickListener() {
107 public void onClick(DialogInterface dialog, int which) {
108 // Do nothing. The `AlertDialog` will close automatically.
112 // Convert `dialogBuilder` to `alertDialog` and display it on the screen.
113 AlertDialog alertDialog = dialogBuilder.create();
116 } else { // Otherwise set the default grey `appBar` background.
117 MainWebViewActivity.appBar.setBackgroundDrawable(ContextCompat.getDrawable(privacyBrowserContext, R.color.gray_100));