2 * Copyright © 2016-2019 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.annotation.SuppressLint;
23 import android.app.Activity;
24 import android.content.Context;
25 import android.content.DialogInterface;
26 import android.content.Intent;
27 import android.content.SharedPreferences;
28 import android.content.pm.PackageManager;
29 import android.net.Proxy;
30 import android.preference.PreferenceManager;
31 import android.util.ArrayMap;
32 import android.util.Log;
34 import androidx.appcompat.app.AlertDialog;
36 import com.stoutner.privacybrowser.activities.MainWebViewActivity;
37 import com.stoutner.privacybrowser.R;
39 import java.lang.reflect.Field;
40 import java.lang.reflect.InvocationTargetException;
41 import java.lang.reflect.Method;
43 public class OrbotProxyHelper {
44 public static void setProxy(Context privacyBrowserContext, Activity parentActivity, String proxyHost, String proxyPort) {
45 if (proxyPort.equals("0")) {
46 // Clear the proxy values.
47 System.clearProperty("proxyHost");
48 System.clearProperty("proxyPort");
50 // Set the proxy values
51 System.setProperty("proxyHost", proxyHost);
52 System.setProperty("proxyPort", proxyPort);
55 // These entries shouldn't be needed if the above general settings are applied. They are here for troubleshooting just in case.
56 // System.setProperty("http.proxyHost", proxyHost);
57 // System.setProperty("http.proxyPort", proxyPort);
58 // System.setProperty("https.proxyHost", proxyHost);
59 // System.setProperty("https.proxyPort", proxyPort);
61 // Use reflection to apply the new proxy values.
63 // Get the application and APK classes. Suppress the lint warning that reflection may not always work in the future and on all devices.
64 Class applicationClass = Class.forName("android.app.Application");
65 @SuppressLint("PrivateApi") Class loadedApkClass = Class.forName("android.app.LoadedApk");
67 // Get the declared fields. Suppress the lint warning that `mLoadedApk` cannot be resolved.
68 @SuppressWarnings("JavaReflectionMemberAccess") Field mLoadedApkField = applicationClass.getDeclaredField("mLoadedApk");
69 Field mReceiversField = loadedApkClass.getDeclaredField("mReceivers");
71 // Allow the values to be changed.
72 mLoadedApkField.setAccessible(true);
73 mReceiversField.setAccessible(true);
75 // Get the APK object.
76 Object mLoadedApkObject = mLoadedApkField.get(privacyBrowserContext);
78 // Get an array map of the receivers.
79 ArrayMap receivers = (ArrayMap) mReceiversField.get(mLoadedApkObject);
82 for (Object receiverMap : receivers.values()) {
83 for (Object receiver : ((ArrayMap) receiverMap).keySet()) {
84 // `Class<?>`, which is an `unbounded wildcard parameterized type`, must be used instead of `Class`, which is a `raw type`. Otherwise, `receiveClass.getDeclaredMethod` is unhappy.
85 Class<?> receiverClass = receiver.getClass();
87 // Get the declared fields.
88 final Field[] declaredFieldArray = receiverClass.getDeclaredFields();
90 // Set the proxy for each field that is a `ProxyChangeListener`.
91 for (Field field : declaredFieldArray) {
92 if (field.getType().getName().contains("ProxyChangeListener")) {
93 Method onReceiveMethod = receiverClass.getDeclaredMethod("onReceive", Context.class, Intent.class);
94 Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION);
95 onReceiveMethod.invoke(receiver, privacyBrowserContext, intent);
100 } catch (ClassNotFoundException | NoSuchFieldException | IllegalAccessException | NoSuchMethodException | InvocationTargetException exception) {
101 Log.d("enableProxyThroughOrbot", "Exception: " + exception);
104 if (proxyPort.equals("8118")) { // Orbot proxy was turned on.
105 try { // Check to see if Orbot is installed.
106 PackageManager packageManager = privacyBrowserContext.getPackageManager();
107 packageManager.getPackageInfo("org.torproject.android", 0);
109 // Ask Orbot to connect if its current status is not "ON".
110 if (!MainWebViewActivity.orbotStatus.equals("ON")) {
111 // Request Orbot to start.
112 Intent orbotIntent = new Intent("org.torproject.android.intent.action.START");
114 // Send the intent to the Orbot package.
115 orbotIntent.setPackage("org.torproject.android");
117 // Request a status response be sent back to this package.
118 orbotIntent.putExtra("org.torproject.android.intent.extra.PACKAGE_NAME", privacyBrowserContext.getPackageName());
121 privacyBrowserContext.sendBroadcast(orbotIntent);
123 } catch (PackageManager.NameNotFoundException exception){ // If an exception is thrown, Orbot is not installed.
124 // Use `AlertDialog.Builder` to create the `AlertDialog`.
125 AlertDialog.Builder dialogBuilder;
127 // Get a handle for the shared preferences.
128 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(privacyBrowserContext);
130 // Get the theme preference.
131 boolean darkTheme = sharedPreferences.getBoolean("dark_theme", false);
133 // Set the style according to the theme.
135 dialogBuilder = new AlertDialog.Builder(parentActivity, R.style.PrivacyBrowserAlertDialogDark);
137 dialogBuilder = new AlertDialog.Builder(parentActivity, R.style.PrivacyBrowserAlertDialogLight);
141 dialogBuilder.setMessage(R.string.orbot_proxy_not_installed);
143 // Set the positive button.
144 dialogBuilder.setPositiveButton(R.string.close, (DialogInterface dialog, int which) -> {
145 // Do nothing. The `AlertDialog` will close automatically.
148 // Convert `dialogBuilder` to `alertDialog`.
149 AlertDialog alertDialog = dialogBuilder.create();