X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fhelpers%2FProxyHelper.java;fp=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fhelpers%2FProxyHelper.java;h=0000000000000000000000000000000000000000;hp=04e40e9b4dad4ef85fa5625b38079bc4001812c0;hb=484f0b0f0143c53a4722cee3a31e714df0c8c49a;hpb=c906043ffe9b4d139e8d851e581a0eb46b935e42 diff --git a/app/src/main/java/com/stoutner/privacybrowser/helpers/ProxyHelper.java b/app/src/main/java/com/stoutner/privacybrowser/helpers/ProxyHelper.java deleted file mode 100644 index 04e40e9b..00000000 --- a/app/src/main/java/com/stoutner/privacybrowser/helpers/ProxyHelper.java +++ /dev/null @@ -1,315 +0,0 @@ -/* - * Copyright © 2016-2020 Soren Stoutner . - * - * This file is part of 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 . - */ - -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