+++ /dev/null
-/*
- * Copyright © 2016-2020 Soren Stoutner <soren@stoutner.com>.
- *
- * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
- *
- * Privacy Browser is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Privacy Browser 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 Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.stoutner.privacybrowser.helpers;
-
-import android.annotation.SuppressLint;
-import android.content.Context;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.net.Uri;
-import android.os.Build;
-import android.os.Parcelable;
-import android.util.ArrayMap;
-import android.view.View;
-
-import androidx.preference.PreferenceManager;
-import androidx.webkit.ProxyConfig;
-import androidx.webkit.ProxyController;
-import androidx.webkit.WebViewFeature;
-
-import com.google.android.material.snackbar.Snackbar;
-
-import com.stoutner.privacybrowser.R;
-import com.stoutner.privacybrowser.activities.MainWebViewActivity;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.net.InetSocketAddress;
-import java.net.Proxy;
-import java.net.SocketAddress;
-import java.util.concurrent.Executor;
-
-public class ProxyHelper {
- public static final String NONE = "None";
- public static final String TOR = "Tor";
- public static final String I2P = "I2P";
- public static final String CUSTOM = "Custom";
-
- public static void setProxy(Context context, View activityView, String proxyMode) {
- // Initialize the proxy host and port strings.
- String proxyHost = "0";
- String proxyPort = "0";
-
- // Create a proxy config builder.
- ProxyConfig.Builder proxyConfigBuilder = new ProxyConfig.Builder();
-
- // Run the commands that correlate to the proxy mode.
- switch (proxyMode) {
- case NONE:
- // Clear the proxy values.
- System.clearProperty("proxyHost");
- System.clearProperty("proxyHost");
- break;
-
- case TOR:
- // Update the proxy host and port strings. These can be removed once the minimum API >= 21.
- proxyHost = "localhost";
- proxyPort = "8118";
-
- // Set the proxy values. These can be removed once the minimum API >= 21.
- System.setProperty("proxyHost", proxyHost);
- System.setProperty("proxyPort", proxyPort);
-
- // Add the proxy to the builder. The proxy config builder can use a SOCKS proxy.
- proxyConfigBuilder.addProxyRule("socks://localhost:9050");
-
- // Ask Orbot to connect if its current status is not `"ON"`.
- if (!MainWebViewActivity.orbotStatus.equals("ON")) {
- // Create an intent to request Orbot to start.
- Intent orbotIntent = new Intent("org.torproject.android.intent.action.START");
-
- // Send the intent to the Orbot package.
- orbotIntent.setPackage("org.torproject.android");
-
- // Request a status response be sent back to this package.
- orbotIntent.putExtra("org.torproject.android.intent.extra.PACKAGE_NAME", context.getPackageName());
-
- // Make it so.
- context.sendBroadcast(orbotIntent);
- }
- break;
-
- case I2P:
- // Update the proxy host and port strings. These can be removed once the minimum API >= 21.
- proxyHost = "localhost";
- proxyPort = "4444";
-
- // Set the proxy values. These can be removed once the minimum API >= 21.
- System.setProperty("proxyHost", proxyHost);
- System.setProperty("proxyPort", proxyPort);
-
- // Add the proxy to the builder.
- proxyConfigBuilder.addProxyRule("http://localhost:4444");
- break;
-
- case CUSTOM:
- // Get a handle for the shared preferences.
- SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
-
- // Get the custom proxy URL string.
- String customProxyUrlString = sharedPreferences.getString("proxy_custom_url", context.getString(R.string.proxy_custom_url_default_value));
-
- // Parse the custom proxy URL.
- try {
- // Convert the custom proxy URL string to a URI.
- Uri customProxyUri = Uri.parse(customProxyUrlString);
-
- // Get the proxy host and port strings from the shared preferences. These can be removed once the minimum API >= 21.
- proxyHost = customProxyUri.getHost();
- proxyPort = String.valueOf(customProxyUri.getPort());
-
- // Set the proxy values. These can be removed once the minimum API >= 21.
- System.setProperty("proxyHost", proxyHost);
- System.setProperty("proxyPort", proxyPort);
-
- // Add the proxy to the builder.
- proxyConfigBuilder.addProxyRule(customProxyUrlString);
- } catch (Exception exception){ // The custom proxy URL is invalid.
- // Display a Snackbar.
- Snackbar.make(activityView, R.string.custom_proxy_invalid, Snackbar.LENGTH_LONG).show();
- }
- break;
- }
-
- // Apply the proxy settings
- if (WebViewFeature.isFeatureSupported(WebViewFeature.PROXY_OVERRIDE)) { // The fancy new proxy config can be used because the API >= 21.
- // Convert the proxy config builder into a proxy config.
- ProxyConfig proxyConfig = proxyConfigBuilder.build();
-
- // Get the proxy controller.
- ProxyController proxyController = ProxyController.getInstance();
-
- // Applying a proxy requires an executor.
- Executor executor = runnable -> {
- // Do nothing.
- };
-
- // Applying a proxy requires a runnable.
- Runnable runnable = () -> {
- // Do nothing.
- };
-
- // Apply the proxy settings.
- if (proxyMode.equals(NONE)) { // Remove the proxy.
- proxyController.clearProxyOverride(executor, runnable);
- } else { // Apply the proxy.
- try {
- // Apply the proxy.
- proxyController.setProxyOverride(proxyConfig, executor, runnable);
- } catch (IllegalArgumentException exception) { // The proxy config is invalid.
- // Display a Snackbar.
- Snackbar.make(activityView, R.string.custom_proxy_invalid, Snackbar.LENGTH_LONG).show();
- }
- }
- } else { // The old proxy method must be used, either because an old WebView is installed or because the API == 19;
- // Get a handle for the shared preferences.
- SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
-
- // Check to make sure a SOCKS proxy is not selected.
- if (proxyMode.equals(CUSTOM) && sharedPreferences.getString("proxy_custom_url", context.getString(R.string.proxy_custom_url_default_value)).startsWith("socks://")) {
- // Display a Snackbar.
- Snackbar.make(activityView, R.string.socks_proxies_do_not_work_on_kitkat, Snackbar.LENGTH_LONG).show();
- } else { // Use reflection to apply the new proxy values.
- try {
- // Get the application and APK classes. Suppress the lint warning that reflection may not always work in the future and on all devices.
- Class applicationClass = Class.forName("android.app.Application");
- @SuppressLint("PrivateApi") Class loadedApkClass = Class.forName("android.app.LoadedApk");
-
- // Get the declared fields. Suppress the lint warning that `mLoadedApk` cannot be resolved.
- @SuppressWarnings("JavaReflectionMemberAccess") Field methodLoadedApkField = applicationClass.getDeclaredField("mLoadedApk");
- Field methodReceiversField = loadedApkClass.getDeclaredField("mReceivers");
-
- // Allow the values to be changed.
- methodLoadedApkField.setAccessible(true);
- methodReceiversField.setAccessible(true);
-
- // Get the APK object.
- Object methodLoadedApkObject = methodLoadedApkField.get(context);
-
- // Get an array map of the receivers.
- ArrayMap receivers = (ArrayMap) methodReceiversField.get(methodLoadedApkObject);
-
- // Set the proxy if the receivers has at least one entry.
- if (receivers != null) {
- for (Object receiverMap : receivers.values()) {
- for (Object receiver : ((ArrayMap) receiverMap).keySet()) {
- // Get the receiver class.
- // `Class<?>`, which is an `unbounded wildcard parameterized type`, must be used instead of `Class`, which is a `raw type`. Otherwise, `receiveClass.getDeclaredMethod()` is unhappy.
- Class<?> receiverClass = receiver.getClass();
-
- // Apply the new proxy settings to any classes whose names contain `ProxyChangeListener`.
- if (receiverClass.getName().contains("ProxyChangeListener")) {
- // Get the `onReceive` method from the class.
- Method onReceiveMethod = receiverClass.getDeclaredMethod("onReceive", Context.class, Intent.class);
-
- // Create a proxy change intent.
- Intent proxyChangeIntent = new Intent(android.net.Proxy.PROXY_CHANGE_ACTION);
-
- if (Build.VERSION.SDK_INT >= 21) {
- // Get a proxy info class.
- // `Class<?>`, which is an `unbounded wildcard parameterized type`, must be used instead of `Class`, which is a `raw type`. Otherwise, `proxyInfoClass.getMethod()` is unhappy.
- Class<?> proxyInfoClass = Class.forName("android.net.ProxyInfo");
-
- // Get the build direct proxy method from the proxy info class.
- Method buildDirectProxyMethod = proxyInfoClass.getMethod("buildDirectProxy", String.class, Integer.TYPE);
-
- // Populate a proxy info object with the new proxy information.
- Object proxyInfoObject = buildDirectProxyMethod.invoke(proxyInfoClass, proxyHost, Integer.valueOf(proxyPort));
-
- // Add the proxy info object into the proxy change intent.
- proxyChangeIntent.putExtra("proxy", (Parcelable) proxyInfoObject);
- }
-
- // Pass the proxy change intent to the `onReceive` method of the receiver class.
- onReceiveMethod.invoke(receiver, context, proxyChangeIntent);
- }
- }
- }
- }
- } catch (ClassNotFoundException | NoSuchFieldException | IllegalAccessException | NoSuchMethodException | InvocationTargetException exception) {
- // Do nothing.
- }
- }
- }
- }
-
- public Proxy getCurrentProxy(Context context) {
- // Define a proxy variable.
- Proxy proxy;
-
- // Get the proxy according to the current proxy mode.
- switch (MainWebViewActivity.proxyMode) {
- case (ProxyHelper.TOR):
- if (Build.VERSION.SDK_INT >= 21) {
- // Use localhost port 9050 as the socket address.
- SocketAddress torSocketAddress = InetSocketAddress.createUnresolved("localhost", 9050);
-
- // Create a SOCKS proxy.
- proxy = new Proxy(Proxy.Type.SOCKS, torSocketAddress);
- } else {
- // Use localhost port 8118 as the socket address.
- SocketAddress oldTorSocketAddress = InetSocketAddress.createUnresolved("localhost", 8118);
-
- // Create an HTTP proxy.
- proxy = new Proxy(Proxy.Type.HTTP, oldTorSocketAddress);
- }
- break;
-
- case (ProxyHelper.I2P):
- // Use localhost port 4444 as the socket address.
- SocketAddress i2pSocketAddress = InetSocketAddress.createUnresolved("localhost", 4444);
-
- // Create an HTTP proxy.
- proxy = new Proxy(Proxy.Type.HTTP, i2pSocketAddress);
- break;
-
- case (ProxyHelper.CUSTOM):
- // Get the shared preferences.
- SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
-
- // Get the custom proxy URL string.
- String customProxyUrlString = sharedPreferences.getString("proxy_custom_url", context.getString(R.string.proxy_custom_url_default_value));
-
- // Parse the custom proxy URL.
- try {
- // Convert the custom proxy URL string to a URI.
- Uri customProxyUri = Uri.parse(customProxyUrlString);
-
- // Get the custom socket address.
- SocketAddress customSocketAddress = InetSocketAddress.createUnresolved(customProxyUri.getHost(), customProxyUri.getPort());
-
- // Get the custom proxy scheme.
- String customProxyScheme = customProxyUri.getScheme();
-
- // Create a proxy according to the scheme.
- if ((customProxyScheme != null) && customProxyScheme.startsWith("socks")) { // A SOCKS proxy is specified.
- // Create a SOCKS proxy.
- proxy = new Proxy(Proxy.Type.SOCKS, customSocketAddress);
- } else { // A SOCKS proxy is not specified.
- // Create an HTTP proxy.
- proxy = new Proxy(Proxy.Type.HTTP, customSocketAddress);
- }
- } catch (Exception exception) { // The custom proxy cannot be parsed.
- // Disable the proxy.
- proxy = Proxy.NO_PROXY;
- }
- break;
-
- default: // No proxy is in use.
- // Create a direct proxy.
- proxy = Proxy.NO_PROXY;
- break;
- }
-
- // Return the proxy.
- return proxy;
- }
-}
\ No newline at end of file
projects / PrivacyBrowserAndroid.git / blobdiff