--- /dev/null
+/*
+ * Copyright © 2016-2019 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.net.Proxy;
+import android.os.Build;
+import android.os.Parcelable;
+import android.util.ArrayMap;
+import android.util.Log;
+
+import com.stoutner.privacybrowser.activities.MainWebViewActivity;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+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, String mode) {
+ // Initialize the proxy host and port strings.
+ String proxyHost = "0";
+ String proxyPort = "0";
+
+ // Run the commands that correlate to the proxy mode.
+ switch (mode) {
+ case NONE:
+ // Clear the proxy values.
+ System.clearProperty("proxyHost");
+ System.clearProperty("proxyHost");
+ break;
+
+ case TOR:
+ // Update the proxy host and port strings.
+ proxyHost = "localhost";
+ proxyPort = "8118";
+
+ // Set the proxy values
+ System.setProperty("proxyHost", proxyHost);
+ System.setProperty("proxyPort", proxyPort);
+
+ // Ask Orbot to connect if its current status is not `"ON"`.
+ if (!MainWebViewActivity.orbotStatus.equals("ON")) {
+ // 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.
+ proxyHost = "localhost";
+ proxyPort = "4444";
+
+ // Set the proxy values
+ System.setProperty("proxyHost", proxyHost);
+ System.setProperty("proxyPort", proxyPort);
+ break;
+
+ case CUSTOM:
+ // Update the proxy host and port strings.
+ proxyHost = "0";
+ proxyPort = "0";
+
+ // Set the proxy values
+ System.setProperty("proxyHost", proxyHost);
+ System.setProperty("proxyPort", proxyPort);
+ break;
+ }
+
+ // 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(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) {
+ Log.d("enableProxyThroughOrbot", "Exception: " + exception);
+ }
+ }
+}
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projects / PrivacyBrowserAndroid.git / blobdiff