├── .gitignore ├── .travis.yml ├── LICENSE ├── README.md ├── android ├── .gitignore ├── README.md ├── app │ ├── .gitignore │ ├── build.gradle │ ├── proguard-rules.pro │ └── src │ │ ├── androidTest │ │ └── java │ │ │ └── com │ │ │ └── decoyrouting │ │ │ └── tapdanceclient │ │ │ └── ExampleInstrumentedTest.java │ │ ├── main │ │ ├── AndroidManifest.xml │ │ ├── assets │ │ │ ├── pubkey.dev │ │ │ └── root.pem │ │ ├── java │ │ │ └── com │ │ │ │ └── decoyrouting │ │ │ │ └── tapdanceclient │ │ │ │ └── MainActivity.java │ │ └── res │ │ │ ├── drawable │ │ │ ├── border_stdout.xml │ │ │ ├── button.xml │ │ │ └── button_normal.xml │ │ │ ├── layout │ │ │ ├── activity_main.xml │ │ │ └── content_main.xml │ │ │ ├── menu │ │ │ └── menu_main.xml │ │ │ ├── mipmap-hdpi │ │ │ └── ic_launcher.png │ │ │ ├── mipmap-mdpi │ │ │ └── ic_launcher.png │ │ │ ├── mipmap-xhdpi │ │ │ └── ic_launcher.png │ │ │ ├── mipmap-xxhdpi │ │ │ └── ic_launcher.png │ │ │ ├── mipmap-xxxhdpi │ │ │ └── ic_launcher.png │ │ │ ├── values-v21 │ │ │ └── styles.xml │ │ │ ├── values-w820dp │ │ │ └── dimens.xml │ │ │ └── values │ │ │ ├── colors.xml │ │ │ ├── dimens.xml │ │ │ ├── strings.xml │ │ │ └── styles.xml │ │ └── test │ │ └── java │ │ └── com │ │ └── decoyrouting │ │ └── tapdanceclient │ │ └── ExampleUnitTest.java ├── build.gradle ├── gradle.properties ├── gradle │ └── wrapper │ │ ├── gradle-wrapper.jar │ │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── proxybind │ └── build.gradle └── settings.gradle ├── assets ├── ClientConf ├── ClientConf.dev ├── ClientConf.old ├── roots └── station_pubkey_test ├── build-apk.sh ├── build ├── EmbeddedValues.java.enc ├── PsiphonCoreGradle.patch ├── TunnelManager.conjure.java.patch ├── TunnelManager.tapdance.java.patch ├── conjure.golang.patch └── tapdance │ ├── ClientConf │ └── roots ├── cli ├── README.md ├── assets ├── cli.dockerfile └── main.go ├── getifaddr ├── getifaddr.go └── getifaddr_test.go ├── go.mod ├── go.sum ├── gobind ├── README.md └── gobind.go ├── protobuf ├── Makefile ├── README.md ├── proto_test.go ├── signalling.pb.go └── signalling.proto ├── tapdance ├── assets ├── assets-phantoms_test.go ├── assets.go ├── assets_test.go ├── common.go ├── conjure.go ├── conjure_overrides_test.go ├── conjure_test.go ├── conn_flow.go ├── conn_raw.go ├── counter.go ├── dialer.go ├── dialer_test.go ├── interfaces.go ├── logger.go ├── tapdance.go ├── utils.go └── utils_test.go ├── tdproxy ├── README.md ├── flow.go ├── gengodoc.sh ├── tapdance.go └── tapdance_test.go ├── test_scripts ├── README.md ├── go-1.7.4_wget.sh ├── ip.sh ├── nc_send.sh ├── psiphon_digest_cc.sh ├── seq.py ├── ssh-td.sh └── twitter_wget.sh └── tools ├── README.md ├── cjprobe ├── README.md ├── cjprobe.go └── cjprobe_test.go ├── clientconf ├── clientconf.go └── clientconf_test.go ├── elligator-test └── elligator-test.go ├── gen-bias ├── README.md └── main.go ├── makefile ├── ripe-atlas-probes ├── probes.json ├── setup.go └── targets.json ├── utls-test └── main.go └── v6lookup └── main.go /.gitignore: -------------------------------------------------------------------------------- 1 | cli/cli 2 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | 2 | Apache License 3 | Version 2.0, January 2004 4 | http://www.apache.org/licenses/ 5 | 6 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 7 | 8 | 1. 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2 | refract 3 |

Refraction Networking Client

4 | 5 |

Refraction Networking is a free-to-use anti-censorship technology, that places proxies at Internet Service Providers, so they are harder to block. This client includes support for both the TapDance and Conjure protocols

6 |

7 | 8 | 9 | 10 |

11 | 12 | # Build 13 | ## Download Golang and TapDance and dependencies 14 | 0. Install [Golang](https://golang.org/dl/) (currently tested against version 1.10 and latest). 15 | 16 | 1. Get source code for Go TapDance and all dependencies: 17 | 18 | ```bash 19 | go get -d -u -t github.com/refraction-networking/gotapdance/... 20 | ``` 21 | Ignore the "no buildable Go source files" warning. 22 | 23 | If you have outdated versions of libraries used, you might want to do `go get -u all`. 24 | 25 | ## Usage 26 | 27 | There are 3 supported ways to use TapDance: 28 | 29 | * [Command Line Interface client](cli) 30 | 31 | * [Psiphon](https://psiphon.ca/) Android app integrated TapDance as one of their transports. 32 | 33 | * Use tapdance directly from other Golang program: 34 | 35 | ```Golang 36 | package main 37 | 38 | import ( 39 | "github.com/refraction-networking/gotapdance/tapdance" 40 | "fmt" 41 | ) 42 | 43 | func main() { 44 | // first, copy ClientConf and roots files into assets directory 45 | // make sure assets directory is writable (only) by the td process 46 | tapdance.AssetsSetDir("./path/to/assets/dir/") 47 | 48 | tdConn, err := tapdance.Dial("tcp", "censoredsite.com:80") 49 | if err != nil { 50 | fmt.Printf("tapdance.Dial() failed: %+v\n", err) 51 | return 52 | } 53 | // tdConn implements standard net.Conn, allowing to use it like any other Golang conn with 54 | // Write(), Read(), Close() etc. It also allows to pass tdConn to functions that expect 55 | // net.Conn, such as tls.Client() making it easy to do tls handshake over TapDance conn. 56 | _, err = tdConn.Write([]byte("GET / HTTP/1.1\nHost: censoredsite.com\n\n")) 57 | if err != nil { 58 | fmt.Printf("tdConn.Write() failed: %+v\n", err) 59 | return 60 | } 61 | buf := make([]byte, 16384) 62 | _, err = tdConn.Read(buf) 63 | // ... 64 | } 65 | ``` 66 | 67 | * [CURRENTLY NOT MAINTAINED] Standalone TapDance mobile applications that use [Golang Bindings](gobind) as a shared library. 68 | 69 | * [Android application in Java](android) 70 | 71 | 72 | # Links 73 | 74 | [Refraction Networking](https://refraction.network) is an umbrella term for the family of similarly working technnologies. 75 | 76 | TapDance station code released for FOCI'17 on github: [refraction-networking/tapdance](https://github.com/refraction-networking/tapdance) 77 | 78 | Original 2014 paper: ["TapDance: End-to-Middle Anticensorship without Flow Blocking"](https://ericw.us/trow/tapdance-sec14.pdf) 79 | 80 | Newer(2017) paper that shows TapDance working at high-scale: ["An ISP-Scale Deployment of TapDance"](https://www.usenix.org/system/files/conference/foci17/foci17-paper-frolov_0.pdf) 81 | -------------------------------------------------------------------------------- /android/.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | /local.properties 4 | /.idea/workspace.xml 5 | /.idea/libraries 6 | .DS_Store 7 | /build 8 | /captures 9 | .externalNativeBuild 10 | .idea -------------------------------------------------------------------------------- /android/README.md: -------------------------------------------------------------------------------- 1 | # Build 2 | The project is built with Gradle. 3 | 4 | ### Command line 5 | Assemble app. 6 | ```` 7 | bash$ cd gotapdance/android/app 8 | bash$ ../gradlew assemble 9 | ```` 10 | Install app on device or emulator. 11 | ```` 12 | bash$ cd gotapdance/android/app 13 | bash$ ../gradlew install 14 | ```` 15 | Developer mode have to be enabled on device. 16 | 17 | ### IDE 18 | Tapdance also can be built from Android Studio or Intellij Idea via standard interface. 19 | 20 | # Screenshot 21 | One of the latest versions looks like this: 22 | 23 | 24 | -------------------------------------------------------------------------------- /android/app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /android/app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | buildDir = 'build' 4 | 5 | android { 6 | compileSdkVersion 25 7 | buildToolsVersion "25.0.0" 8 | defaultConfig { 9 | applicationId "com.decoyrouting.tapdanceclient" 10 | minSdkVersion 15 11 | targetSdkVersion 25 12 | versionCode 1 13 | versionName "1.0" 14 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 15 | ndk { 16 | abiFilters "armeabi-v7a", "x86" 17 | } 18 | } 19 | buildTypes { 20 | release { 21 | minifyEnabled false 22 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 23 | } 24 | } 25 | } 26 | 27 | 28 | dependencies { 29 | compile fileTree(include: ['*.jar'], dir: 'libs') 30 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', { 31 | exclude group: 'com.android.support', module: 'support-annotations' 32 | }) 33 | compile 'com.android.support:appcompat-v7:25.0.0' 34 | compile 'com.android.support:design:25.0.0' 35 | testCompile 'junit:junit:4.12' 36 | compile project(':proxybind') 37 | } 38 | -------------------------------------------------------------------------------- /android/app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in /home/sfrolov/Android/Sdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /android/app/src/androidTest/java/com/decoyrouting/tapdanceclient/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.decoyrouting.tapdanceclient; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumentation test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() throws Exception { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("com.decoyrouting.tapdanceclient", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /android/app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 11 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | -------------------------------------------------------------------------------- /android/app/src/main/assets/pubkey.dev: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/refraction-networking/gotapdance/0e1cc0a3cb1aabc8f4012012ef7f938d92e9f94d/android/app/src/main/assets/pubkey.dev -------------------------------------------------------------------------------- /android/app/src/main/java/com/decoyrouting/tapdanceclient/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.decoyrouting.tapdanceclient; 2 | 3 | import android.os.Bundle; 4 | import android.support.v7.app.AppCompatActivity; 5 | import android.support.v7.widget.Toolbar; 6 | import android.text.method.ScrollingMovementMethod; 7 | import android.view.View; 8 | import android.view.Menu; 9 | import android.view.MenuItem; 10 | import android.widget.Button; 11 | import android.widget.TextView; 12 | 13 | import java.io.IOException; 14 | import java.io.InputStream; 15 | 16 | import go.gobind.*; 17 | 18 | public class MainActivity extends AppCompatActivity { 19 | 20 | @Override 21 | protected void onCreate(Bundle savedInstanceState) { 22 | super.onCreate(savedInstanceState); 23 | 24 | setContentView(R.layout.activity_main); 25 | Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 26 | setSupportActionBar(toolbar); 27 | 28 | final TextView stdout_tv = (TextView) findViewById(R.id.et_stdout); 29 | stdout_tv.setMovementMethod(ScrollingMovementMethod.getInstance()); 30 | 31 | final TextView tvState = (TextView) findViewById(R.id.state); 32 | final Button launchButton = (Button) findViewById(R.id.launchButton); 33 | 34 | new Thread() { 35 | @Override 36 | public void run() { 37 | try { 38 | while (!isInterrupted()) { 39 | Thread.sleep(100); 40 | runOnUiThread(new Runnable() { 41 | @Override 42 | public void run() { 43 | String stats = gobind.Gobind.getStats(); 44 | Boolean isListening = gobind.Gobind.isListening(); 45 | tvState.setText(stats); 46 | if (isListening) { 47 | launchButton.setText("Stop"); 48 | } else { 49 | launchButton.setText("Launch"); 50 | } 51 | stdout_tv.append(gobind.Gobind.getLog().toString()); 52 | } 53 | }); 54 | } 55 | } catch (InterruptedException e) { 56 | } 57 | } 58 | }.start(); 59 | 60 | launchButton.setOnClickListener(new View.OnClickListener() { 61 | @Override 62 | public void onClick(View v) { 63 | new Thread(new Runnable() { 64 | public void run() { 65 | try { 66 | if (gobind.Gobind.isListening()) { 67 | gobind.Gobind.stop(); 68 | } else { 69 | gobind.Gobind.listen(); 70 | } 71 | } catch (final Exception ex) { 72 | runOnUiThread(new Runnable() { 73 | @Override 74 | public void run() { 75 | try { 76 | stdout_tv.append(ex.toString() + "\n"); 77 | } catch (Exception e) { 78 | } 79 | } 80 | }); 81 | } 82 | } 83 | }).start(); 84 | } 85 | }); 86 | 87 | try { 88 | gobind.Gobind.newDecoyProxy(10500); 89 | } catch (Exception ex) { 90 | System.out.println(ex); 91 | } 92 | } 93 | 94 | @Override 95 | public boolean onCreateOptionsMenu(Menu menu) { 96 | // Inflate the menu; this adds items to the action bar if it is present. 97 | getMenuInflater().inflate(R.menu.menu_main, menu); 98 | return true; 99 | } 100 | 101 | @Override 102 | public boolean onOptionsItemSelected(MenuItem item) { 103 | // Handle action bar item clicks here. The action bar will 104 | // automatically handle clicks on the Home/Up button, so long 105 | // as you specify a parent activity in AndroidManifest.xml. 106 | int id = item.getItemId(); 107 | 108 | //noinspection SimplifiableIfStatement 109 | if (id == R.id.action_settings) { 110 | return true; 111 | } 112 | 113 | return super.onOptionsItemSelected(item); 114 | } 115 | } 116 | -------------------------------------------------------------------------------- /android/app/src/main/res/drawable/border_stdout.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 8 | 9 | 10 | 11 | 14 | 15 | 16 | 17 | 19 | 20 | 21 | 26 | 27 | -------------------------------------------------------------------------------- /android/app/src/main/res/drawable/button.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /android/app/src/main/res/drawable/button_normal.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 9 | 14 | -------------------------------------------------------------------------------- /android/app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 9 | 10 | 14 | 15 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | -------------------------------------------------------------------------------- /android/app/src/main/res/layout/content_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 16 | 29 | 41 | 58 |