Initial commit

.gitignore

@@ -23,6 +23,9 @@ local.properties
 # Proguard folder generated by Eclipse
 proguard/
 
+#IDE files
+.idea/
+
 # Log Files
 *.log
 

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle

@@ -0,0 +1,36 @@
+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 25
+    buildToolsVersion "25.0.2"
+    defaultConfig {
+        applicationId "org.itxtech.daedalus"
+        minSdkVersion 21
+        targetSdkVersion 25
+        versionCode 1
+        versionName "1.0.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    lintOptions{
+        checkReleaseBuilds false
+        abortOnError false
+    }
+}
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+        exclude group: 'com.android.support', module: 'support-annotations'
+    })
+
+    compile 'com.android.support:appcompat-v7:25.3.1'
+    compile 'com.android.support:design:25.3.1'
+    compile 'com.android.support:support-v4:25.3.1'
+    testCompile 'junit:junit:4.12'
+}

app/proguard-rules.pro

@@ -0,0 +1,17 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in E:\development\android-sdk-windows/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

app/src/androidTest/java/org/itxtech/daedalus/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package org.itxtech.daedalus;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumentation test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("org.itxtech.daedalus", appContext.getPackageName());
+    }
+}

app/src/main/AndroidManifest.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="org.itxtech.daedalus">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
+
+    <application
+            android:allowBackup="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:supportsRtl="true"
+            android:theme="@style/AppTheme">
+        <service
+                android:name=".DaedalusVpnService"
+                android:permission="android.permission.BIND_VPN_SERVICE">
+            <intent-filter>
+                <action android:name="android.net.VpnService"/>
+            </intent-filter>
+        </service>
+
+        <receiver android:name=".BootBroadcastReceiver">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </receiver>
+
+        <activity
+                android:name=".MainActivity"
+                android:label="@string/app_name"
+                android:launchMode="singleTask"
+                android:theme="@style/AppTheme.NoActionBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <activity
+                android:name=".SettingsActivity"
+                android:label="@string/action_settings">
+        </activity>
+        <activity android:name=".AboutActivity"
+                  android:label="@string/action_about">
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/org/itxtech/daedalus/AboutActivity.java

@@ -0,0 +1,13 @@
+package org.itxtech.daedalus;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+
+public class AboutActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_about);
+    }
+}

app/src/main/java/org/itxtech/daedalus/BootBroadcastReceiver.java

@@ -0,0 +1,41 @@
+package org.itxtech.daedalus;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.net.VpnService;
+import android.preference.PreferenceManager;
+import android.util.Log;
+
+/**
+ * Daedalus Project
+ *
+ * @author iTXTech
+ * @link https://itxtech.org
+ * <p>
+ * This program 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, version 3.
+ */
+public class BootBroadcastReceiver extends BroadcastReceiver {
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        PreferenceManager.setDefaultValues(context, R.xml.perf_settings, false);
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        if (prefs.getBoolean("settings_boot", false)) {
+
+            Intent vIntent = VpnService.prepare(context);
+            if (vIntent != null) {
+                context.startActivity(vIntent);
+            }
+
+            DaedalusVpnService.primaryServer = DnsServers.getDnsServerAddress(prefs.getString("primary_server", "0"));
+            DaedalusVpnService.secondaryServer = DnsServers.getDnsServerAddress(prefs.getString("secondary_server", "1"));
+
+            context.startService((new Intent(context, DaedalusVpnService.class)).setAction(DaedalusVpnService.ACTION_ACTIVATE));
+
+            Log.d("DVpn", "Boot service");
+        }
+    }
+}

app/src/main/java/org/itxtech/daedalus/DaedalusVpnService.java

@@ -0,0 +1,135 @@
+package org.itxtech.daedalus;
+
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.net.VpnService;
+import android.os.ParcelFileDescriptor;
+import android.support.v7.app.NotificationCompat;
+import android.util.Log;
+
+/**
+ * Daedalus Project
+ *
+ * @author iTXTech
+ * @link https://itxtech.org
+ * <p>
+ * This program 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, version 3.
+ */
+public class DaedalusVpnService extends VpnService implements Runnable {
+    public static final String ACTION_ACTIVATE = "org.itxtech.daedalus.DaedalusVpnServer.ACTIVATE";
+    public static final String ACTION_DEACTIVATE = "org.itxtech.daedalus.DaedalusVpnServer.DEACTIVATE";
+
+    public static String primaryServer;
+    public static String secondaryServer;
+
+    private Thread mThread = null;
+    private static int ip = 0;
+    private ParcelFileDescriptor descriptor;
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        if (intent != null) {
+            switch (intent.getAction()) {
+                case ACTION_ACTIVATE:
+
+                    NotificationManager manager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
+
+                    NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
+
+                    Intent nIntent = new Intent(this, MainActivity.class);
+                    PendingIntent pIntent = PendingIntent.getActivity(this, 0, nIntent, PendingIntent.FLAG_UPDATE_CURRENT);
+                    builder.setContentTitle(getResources().getString(R.string.notification_activated))
+                            .setDefaults(NotificationCompat.DEFAULT_LIGHTS)
+                            .setSmallIcon(R.mipmap.ic_launcher)
+                            .setAutoCancel(true)
+                            .setOngoing(true)
+                            .setContentIntent(pIntent);
+
+                    Notification notification = builder.build();
+                    notification.flags = Notification.FLAG_NO_CLEAR;
+
+                    manager.notify(0, notification);
+
+                    if (this.mThread == null) {
+                        this.mThread = new Thread(this, "DaedalusVpn");
+                        this.mThread.start();
+                    }
+                    return START_STICKY;
+                case ACTION_DEACTIVATE:
+                    stopThread();
+
+                    NotificationManager notificationManager = (NotificationManager) this.getSystemService(Context.NOTIFICATION_SERVICE);
+                    notificationManager.cancelAll();
+
+                    return START_NOT_STICKY;
+            }
+        }
+        return START_NOT_STICKY;
+    }
+
+    @Override
+    public void onDestroy() {
+        stopThread();
+    }
+
+    private void stopThread() {
+        try {
+            if (this.descriptor != null) {
+                this.descriptor.close();
+                this.descriptor = null;
+            }
+        } catch (Exception e) {
+            Log.d("DVpn", e.toString());
+        }
+        stopSelf();
+    }
+
+    @Override
+    public void onRevoke() {
+        stopThread();
+    }
+
+    @Override
+    public void run() {
+        try {
+            int i;
+            Builder builder = new Builder();
+            StringBuilder stringBuilder = new StringBuilder("10.0.0.");
+            if (ip == 254) {
+                ip = 0;
+                i = 0;
+            } else {
+                i = ip;
+                ip = i + 1;
+            }
+            String ipAdd = stringBuilder.append(i).toString();
+            if (this.descriptor != null) {
+                this.descriptor.close();
+            }
+
+            builder.addAddress(ipAdd, 24);
+            Log.d("DVpn", "tun0 add " + ipAdd + " pServ " + primaryServer + " sServ " + secondaryServer);
+            builder.addDnsServer(primaryServer).addDnsServer(secondaryServer);
+            this.descriptor = builder.setSession("DVpn").establish();
+
+            while (true) {
+                Thread.sleep(8000);
+            }
+        } catch (Exception e) {
+            Log.d("DVpn", e.toString());
+        } finally {
+            Log.d("DVpn", "quit");
+            stopThread();
+        }
+    }
+}

app/src/main/java/org/itxtech/daedalus/DnsServers.java

@@ -0,0 +1,26 @@
+package org.itxtech.daedalus;
+
+/**
+ * Daedalus Project
+ *
+ * @author iTXTech
+ * @link https://itxtech.org
+ * <p>
+ * This program 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, version 3.
+ */
+public class DnsServers {
+    public static String getDnsServerAddress(String id) {
+        switch (id) {
+            case "0":
+                return "113.107.249.56";
+            case "1":
+                return "120.27.103.230";
+            case "2":
+                return "123.206.61.167";
+            default:
+                return "123.206.61.167";
+        }
+    }
+}

app/src/main/java/org/itxtech/daedalus/MainActivity.java

@@ -0,0 +1,159 @@
+package org.itxtech.daedalus;
+
+import android.app.ActivityManager;
+import android.app.Notification;
+import android.app.NotificationManager;
+import android.app.PendingIntent;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.net.Uri;
+import android.net.VpnService;
+import android.os.Bundle;
+import android.preference.PreferenceManager;
+import android.support.design.widget.FloatingActionButton;
+import android.support.design.widget.Snackbar;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.app.NotificationCompat;
+import android.support.v7.widget.Toolbar;
+import android.view.View;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.Button;
+
+/**
+ * Daedalus Project
+ *
+ * @author iTXTech
+ * @link https://itxtech.org
+ * <p>
+ * This program 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, version 3.
+ */
+public class MainActivity extends AppCompatActivity {
+    private boolean serviceActivated = false;
+    private SharedPreferences prefs;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        initConfig();
+
+        serviceActivated = isServiceActivated();
+        setContentView(R.layout.activity_main);
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                Snackbar.make(view, R.string.fab_text, Snackbar.LENGTH_LONG)
+                        .setAction("Action", null).show();
+
+                Intent intent = new Intent();
+                intent.setAction("android.intent.action.VIEW");
+                Uri siteURL = Uri.parse("http://www.cutedns.cn");
+                intent.setData(siteURL);
+                startActivity(intent);
+            }
+        });
+
+        final Button but = (Button) findViewById(R.id.button);
+        if (serviceActivated) {
+            but.setText(R.string.deactivate);
+        } else {
+            but.setText(R.string.activate);
+        }
+        but.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                serviceActivated = isServiceActivated();
+                if (serviceActivated) {
+                    deactivateService();
+                    but.setText(R.string.activate);
+                } else {
+                    activateService();
+                    but.setText(R.string.deactivate);
+                }
+            }
+        });
+    }
+
+    private void initConfig() {
+        PreferenceManager.setDefaultValues(this, R.xml.perf_settings, false);
+        prefs = PreferenceManager.getDefaultSharedPreferences(this);
+    }
+
+    private void activateService() {
+        Intent intent = VpnService.prepare(this);
+        if (intent != null) {
+            startActivityForResult(intent, 0);
+        } else {
+            onActivityResult(0, RESULT_OK, null);
+        }
+    }
+
+
+    private void deactivateService() {
+        startService(getServiceIntent().setAction(DaedalusVpnService.ACTION_DEACTIVATE));
+        stopService(getServiceIntent());
+    }
+
+    private boolean isServiceActivated() {
+        ActivityManager manager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);
+        for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
+            if ("org.itxtech.daedalus.DaedalusVpnService".equals(service.service.getClassName())) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private Intent getServiceIntent() {
+        return new Intent(this, DaedalusVpnService.class);
+    }
+
+    protected void onActivityResult(int request, int result, Intent data) {
+        if (result == RESULT_OK) {
+            DaedalusVpnService.primaryServer = DnsServers.getDnsServerAddress(prefs.getString("primary_server", "0"));
+            DaedalusVpnService.secondaryServer = DnsServers.getDnsServerAddress(prefs.getString("secondary_server", "1"));
+
+            startService(getServiceIntent().setAction(DaedalusVpnService.ACTION_ACTIVATE));
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        // Inflate the menu; this adds items to the action bar if it is present.
+        getMenuInflater().inflate(R.menu.menu_main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // Handle action bar item clicks here. The action bar will
+        // automatically handle clicks on the Home/Up button, so long
+        // as you specify a parent activity in AndroidManifest.xml.
+        int id = item.getItemId();
+
+        //noinspection SimplifiableIfStatement
+        if (id == R.id.action_settings) {
+            Intent intent = new Intent();
+            intent.setClass(this, SettingsActivity.class);
+            startActivity(intent);
+            return true;
+        }
+
+        if (id == R.id.action_about) {
+            Intent intent = new Intent();
+            intent.setClass(this, AboutActivity.class);
+            startActivity(intent);
+            return true;
+        }
+
+        return super.onOptionsItemSelected(item);
+    }
+}

app/src/main/java/org/itxtech/daedalus/SettingsActivity.java

@@ -0,0 +1,27 @@
+package org.itxtech.daedalus;
+
+import android.app.FragmentManager;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+
+/**
+ * Daedalus Project
+ *
+ * @author iTXTech
+ * @link https://itxtech.org
+ * <p>
+ * This program 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, version 3.
+ */
+public class SettingsActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_settings);
+        SettingsFragment settingsFragment = new SettingsFragment();
+        FragmentManager manager = getFragmentManager();
+        manager.beginTransaction().replace(R.id.activity_settings, settingsFragment).commit();
+    }
+}

app/src/main/java/org/itxtech/daedalus/SettingsFragment.java

@@ -0,0 +1,22 @@
+package org.itxtech.daedalus;
+
+import android.os.Bundle;
+import android.preference.PreferenceFragment;
+
+/**
+ * Daedalus Project
+ *
+ * @author iTXTech
+ * @link https://itxtech.org
+ * <p>
+ * This program 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, version 3.
+ */
+public class SettingsFragment extends PreferenceFragment {
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        addPreferencesFromResource(R.xml.perf_settings);
+    }
+}

app/src/main/res/layout-land/content_main.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:id="@+id/content_main"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:paddingLeft="@dimen/activity_horizontal_margin"
+        android:paddingRight="@dimen/activity_horizontal_margin"
+        android:paddingTop="@dimen/activity_vertical_margin"
+        android:paddingBottom="@dimen/activity_vertical_margin"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior"
+        tools:showIn="@layout/activity_main"
+        tools:context="org.itxtech.daedalus.MainActivity">
+    <Button
+            android:text="@string/activate"
+            android:textSize="15sp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/button"
+            android:layout_centerVertical="true" android:layout_centerHorizontal="true"/>
+    <TextView
+            android:text="@string/notice"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/textView"
+            android:textSize="15sp"
+            android:layout_marginTop="100dp"
+            android:layout_alignParentTop="true" android:layout_centerHorizontal="true"/>
+</RelativeLayout>

app/src/main/res/layout/activity_about.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:id="@+id/scrollView"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+    <RelativeLayout
+            android:id="@+id/activity_about"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:paddingLeft="@dimen/activity_horizontal_margin"
+            android:paddingRight="@dimen/activity_horizontal_margin"
+            android:paddingTop="@dimen/activity_vertical_margin"
+            android:paddingBottom="@dimen/activity_vertical_margin"
+            tools:context="org.itxtech.daedalus.AboutActivity">
+
+        <TextView
+                android:text="@string/about"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:id="@+id/textView2"
+                android:textSize="20sp" android:layout_alignParentTop="true" android:layout_alignParentStart="true"/>
+    </RelativeLayout>
+</ScrollView>

app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.design.widget.CoordinatorLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fitsSystemWindows="true"
+        tools:context="org.itxtech.daedalus.MainActivity">
+
+    <android.support.design.widget.AppBarLayout
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:theme="@style/AppTheme.AppBarOverlay">
+
+        <android.support.v7.widget.Toolbar
+                android:id="@+id/toolbar"
+                android:layout_width="match_parent"
+                android:layout_height="?attr/actionBarSize"
+                android:background="?attr/colorPrimary"
+                app:popupTheme="@style/AppTheme.PopupOverlay"/>
+
+    </android.support.design.widget.AppBarLayout>
+
+    <android.support.design.widget.FloatingActionButton
+            android:id="@+id/fab"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="bottom|end"
+            android:layout_margin="@dimen/fab_margin"
+            app:srcCompat="@android:drawable/ic_search_category_default"/>
+    <include layout="@layout/content_main"/>
+
+</android.support.design.widget.CoordinatorLayout>

app/src/main/res/layout/activity_settings.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:id="@+id/activity_settings"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:paddingLeft="@dimen/activity_horizontal_margin"
+        android:paddingRight="@dimen/activity_horizontal_margin"
+        android:paddingTop="@dimen/activity_vertical_margin"
+        android:paddingBottom="@dimen/activity_vertical_margin"
+        tools:context="org.itxtech.daedalus.SettingsActivity">
+
+</RelativeLayout>

app/src/main/res/layout/content_main.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools"
+        xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:id="@+id/content_main"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:paddingLeft="@dimen/activity_horizontal_margin"
+        android:paddingRight="@dimen/activity_horizontal_margin"
+        android:paddingTop="@dimen/activity_vertical_margin"
+        android:paddingBottom="@dimen/activity_vertical_margin"
+        app:layout_behavior="@string/appbar_scrolling_view_behavior"
+        tools:showIn="@layout/activity_main"
+        tools:context="org.itxtech.daedalus.MainActivity">
+    <Button
+            android:text="@string/activate"
+            android:textSize="15sp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/button"
+            android:layout_centerVertical="true" android:layout_centerHorizontal="true"/>
+    <TextView
+            android:text="@string/notice"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/textView"
+            android:textAppearance="@android:style/TextAppearance.Material" android:fontFamily="sans-serif"
+            android:layout_above="@+id/button"
+            android:layout_centerHorizontal="true"
+            android:layout_marginBottom="50dp"/>
+    <ImageView
+            android:contentDescription="icon"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content" app:srcCompat="@mipmap/ic_launcher"
+            android:id="@+id/imageView"
+            android:clickable="false"
+            android:layout_marginTop="30dp"
+            android:minHeight="120dp" android:minWidth="150dp" android:layout_alignParentTop="true"
+            android:layout_centerHorizontal="true"/>
+</RelativeLayout>

app/src/main/res/menu/menu_main.xml

@@ -0,0 +1,13 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+      xmlns:app="http://schemas.android.com/apk/res-auto"
+      xmlns:tools="http://schemas.android.com/tools"
+      tools:context="org.itxtech.daedalus.MainActivity">
+    <item android:id="@+id/action_settings"
+          android:title="@string/action_settings"
+          android:orderInCategory="100"
+    />
+    <item android:id="@+id/action_about"
+          android:title="@string/action_about"
+          android:orderInCategory="100"
+          app:showAsAction="never"/>
+</menu>

app/src/main/res/values-v21/styles.xml

@@ -0,0 +1,8 @@
+<resources>
+    <style name="AppTheme.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+        <item name="android:windowDrawsSystemBarBackgrounds">true</item>
+        <item name="android:statusBarColor">@android:color/transparent</item>
+    </style>
+</resources>

app/src/main/res/values-w820dp/dimens.xml

@@ -0,0 +1,6 @@
+<resources>
+    <!-- Example customization of dimensions originally defined in res/values/dimens.xml
+         (such as screen margins) for screens with more than 820dp of available width. This
+         would include 7" and 10" devices in landscape (~960dp and ~1280dp respectively). -->
+    <dimen name="activity_horizontal_margin">64dp</dimen>
+</resources>

app/src/main/res/values-zh/strings.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="app_name">Daedalus</string>
+    <string name="action_settings">设置</string>
+    <string name="notice">Daedalus: 方便易用的基于 CuteDNS 的科学上网工具。</string>
+    <string name="activate">启动</string>
+    <string name="deactivate">停用</string>
+    <string name="action_about">关于</string>
+    <string name="notification_activated">点击回到 Daedalus</string>
+    <string name="settings_system">系统设置</string>
+    <string name="settings_boot">开机自动启动</string>
+    <string name="about">作者：iTX Technologies\n网站：https://itxtech.org\n\nDaedalus 是一个运行在 Android 上的 DNS 代理程序。\n它基于
+        CuteDNS(http://www.cutedns.cn) 的 DNS 服务器。\n\n你可以通过此程序直连：Google, Google Play, Twitter, Facebook, Gmail, Youtube,
+        Google Drive, Tumblr, Mega, Dropbox, Apkpure, ccFox.info, ProjectH, Battle.NET, WordPress, Microsoft Live,
+        Github, Amazon, Archive, Box.com, Disqus, SoundCloud, inoreader, Feedly, FlipBoard, Flickr, imgur, Instagram,
+        DuckDuckGo, Ixquick, Yahoo, Google Services, Google apis, Android, UpLoad, Appspot, Googl eusercontent, Gstatic,
+        Google other, Google research, Wikipedia, xda-developer and so on via https.\n\n此外，你还可以在中国大陆访问 Google Play 应用程序。
+    </string>
+    <string name="settings_server">服务器设置</string>
+    <string name="primary_server">首选 DNS 服务器</string>
+    <string name="server_south_china">华南</string>
+    <string name="server_east_china">华东</string>
+    <string name="server_north_china">华北</string>
+    <string name="secondary_server">备用 DNS 服务器</string>
+    <string name="fab_text">正在前往 CuteDNS 网站。</string>
+</resources>

app/src/main/res/values/array.xml

@@ -0,0 +1,12 @@
+<resources>
+    <string-array name="dns_server_options">
+        <item>@string/server_north_china</item>
+        <item>@string/server_east_china</item>
+        <item>@string/server_south_china</item>
+    </string-array>
+    <string-array name="dns_server_options_values">
+        <item>0</item>
+        <item>1</item>
+        <item>2</item>
+    </string-array>
+</resources>

app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>

app/src/main/res/values/dimens.xml

@@ -0,0 +1,6 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+    <dimen name="fab_margin">16dp</dimen>
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,27 @@
+<resources>
+    <string name="app_name">Daedalus</string>
+    <string name="action_settings">Settings</string>
+    <string name="notice">Daedalus: The CuteDNS implementation on Android.</string>
+    <string name="activate">Activate</string>
+    <string name="deactivate">Deactivate</string>
+    <string name="action_about">About</string>
+    <string name="notification_activated">Click to back to Daedalus</string>
+    <string name="settings_system">System settings</string>
+    <string name="settings_boot">Auto activate on boot</string>
+    <string name="about">Author: iTX Technologies\nWebsite: https://itxtech.org\n\nDaedalus is a DNS Proxy on
+        Android.\nIt is based on CuteDNS(http://www.cutedns.cn)\'s DNS server.\n\nYou are able to visit some restricted
+        websites: Google, Google Play, Twitter, Facebook, Gmail, Youtube, Google Drive, Tumblr, Mega, Dropbox, Apkpure,
+        ccFox.info, ProjectH, Battle.NET, WordPress, Microsoft Live, Github, Amazon, Archive, Box.com, Disqus,
+        SoundCloud, inoreader, Feedly, FlipBoard, Flickr, imgur, Instagram, DuckDuckGo, Ixquick, Yahoo, Google Services,
+        Google apis, Android, UpLoad, Appspot, Googl eusercontent, Gstatic, Google other, Google research, Wikipedia,
+        xda-developer and so on via https.\n\nBesides, you are also able to use Google Play application in mainland
+        China.
+    </string>
+    <string name="settings_server">Server settings</string>
+    <string name="primary_server">Primary DNS server</string>
+    <string name="server_south_china">South China</string>
+    <string name="server_east_china">East China</string>
+    <string name="server_north_china">North China</string>
+    <string name="secondary_server">Secondary DNS server</string>
+    <string name="fab_text">Loading CuteDNS website...</string>
+</resources>

app/src/main/res/values/styles.xml

@@ -0,0 +1,17 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+    <style name="AppTheme.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>
+    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light"/>
+
+</resources>

app/src/main/res/xml/perf_settings.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
+    <PreferenceCategory
+            android:key="settings_system"
+            android:title="@string/settings_system">
+
+        <SwitchPreference
+                android:key="settings_boot"
+                android:title="@string/settings_boot"
+                android:defaultValue="false"/>
+    </PreferenceCategory>
+
+    <PreferenceCategory
+            android:key="settings_server"
+            android:title="@string/settings_server">
+
+        <ListPreference
+                android:key="primary_server"
+                android:title="@string/primary_server"
+                android:entries="@array/dns_server_options"
+                android:entryValues="@array/dns_server_options_values"
+                android:defaultValue="0">
+        </ListPreference>
+
+        <ListPreference
+                android:key="secondary_server"
+                android:title="@string/secondary_server"
+                android:entries="@array/dns_server_options"
+                android:entryValues="@array/dns_server_options_values"
+                android:defaultValue="1">
+        </ListPreference>
+    </PreferenceCategory>
+</PreferenceScreen>

app/src/test/java/org/itxtech/daedalus/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package org.itxtech.daedalus;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}

build.gradle

@@ -0,0 +1,23 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        jcenter()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.2.2'
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

gradle.properties

@@ -0,0 +1,13 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Mon Dec 28 10:00:20 PST 2015
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip

gradlew

@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"

gradlew.bat

@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1 @@
+include ':app'