Bug 30318 - Integrate snowflake on Android

projects/tor-android-service/config

 # vim: filetype=yaml sw=2
 version: '[% c("abbrev") %]'
 filename: '[% project %]-[% c("version") %]-[% c("var/build_id") %]'
-git_hash: ed2e1479eeddede01b1d510ef79dc5ec798b39c0
+git_hash: ecc251d0a73f7e2034a271efd28036a0108b8688
 git_url: https://git.torproject.org/tor-android-service.git
 git_submodule: 1
 

projects/tor-onion-proxy-library/0001-Bug-30318-Add-snowflake-support.patch

+From e006e215b274b1b834e098b199ea2697bc11b0f1 Mon Sep 17 00:00:00 2001
+From: Georg Koppen <gk@torproject.org>
+Date: Sun, 10 May 2020 08:29:10 +0000
+Subject: [PATCH] Bug 30318: Add snowflake support
+
+
+diff --git a/android/build.gradle b/android/build.gradle
+index a8d9bdc..2392731 100644
+--- a/android/build.gradle
++++ b/android/build.gradle
+@@ -93,6 +93,9 @@ task copyPluggableTransports(type: Copy) {
+     rename { filename ->
+         filename.replace 'obfs4proxy', 'libObfs4proxy.so'
+     }
++    rename { filename ->
++        filename.replace 'snowflake-client', 'libSnowflake.so'
++    }
+ }
+ 
+ gradle.projectsEvaluated {
+diff --git a/universal/src/main/java/com/msopentech/thali/toronionproxy/TorConfigBuilder.java b/universal/src/main/java/com/msopentech/thali/toronionproxy/TorConfigBuilder.java
+index 2405097..bcb6a37 100644
+--- a/universal/src/main/java/com/msopentech/thali/toronionproxy/TorConfigBuilder.java
++++ b/universal/src/main/java/com/msopentech/thali/toronionproxy/TorConfigBuilder.java
+@@ -109,22 +109,33 @@ public final class TorConfigBuilder {
+         return this;
+     }
+ 
+-    public TorConfigBuilder configurePluggableTransportsFromSettings(File pluggableTransportClient) throws IOException {
+-        if (pluggableTransportClient == null) {
++    public TorConfigBuilder configurePluggableTransportsFromSettings(File pluggableTransportObfs, File pluggableTransportSnow) throws IOException {
++        if (pluggableTransportObfs == null  || pluggableTransportSnow == null) {
+             return this;
+         }
+ 
+-        if (!pluggableTransportClient.exists()) {
+-            throw new IOException("Bridge binary does not exist: " + pluggableTransportClient
++        if (!pluggableTransportObfs.exists()) {
++            throw new IOException("Obfs4proxy binary does not exist: " + pluggableTransportObfs
+                     .getCanonicalPath());
+         }
+ 
+-        if (!pluggableTransportClient.canExecute()) {
+-            throw new IOException("Bridge binary is not executable: " + pluggableTransportClient
++        if (!pluggableTransportSnow.exists()) {
++            throw new IOException("Snowflake binary does not exist: " + pluggableTransportSnow
+                     .getCanonicalPath());
+         }
+ 
+-        transportPlugin(pluggableTransportClient.getCanonicalPath());
++        if (!pluggableTransportObfs.canExecute()) {
++            throw new IOException("Obfs4proxy binary is not executable: " + pluggableTransportObfs
++                    .getCanonicalPath());
++        }
++
++        if (!pluggableTransportSnow.canExecute()) {
++            throw new IOException("Snowflake binary is not executable: " + pluggableTransportSnow
++                    .getCanonicalPath());
++        }
++
++
++        transportPlugin(pluggableTransportObfs.getCanonicalPath(), pluggableTransportSnow.getCanonicalPath());
+         return this;
+     }
+ 
+@@ -491,8 +502,9 @@ public final class TorConfigBuilder {
+         return transPort(settings.transPort());
+     }
+ 
+-    public TorConfigBuilder transportPlugin(String clientPath) {
+-        buffer.append("ClientTransportPlugin meek_lite,obfs3,obfs4 exec ").append(clientPath).append('\n');
++    public TorConfigBuilder transportPlugin(String obfsPath, String snowPath) {
++        buffer.append("ClientTransportPlugin meek_lite,obfs3,obfs4 exec ").append(obfsPath).append('\n');
++        buffer.append("ClientTransportPlugin snowflake exec ").append(snowPath).append(" -url https://snowflake-broker.azureedge.net/ -front ajax.aspnetcdn.com -ice stun:stun.l.google.com:19302\n");
+         return this;
+     }
+ 
+@@ -557,6 +569,9 @@ public final class TorConfigBuilder {
+                     case 3:
+                         reqBridgeType = "meek_lite";
+                         break;
++                    case 4:
++                        reqBridgeType = "snowflake";
++                        break;
+                     default:
+                         throw new IOException("Requested unknown transport type: " + bridgesType);
+                 }
+-- 
+2.26.2
+

projects/tor-onion-proxy-library/build

@@ -22,6 +22,7 @@ cd /var/tmp/build/[% project %]-[% c('version') %]
 patch -p1 < $rootdir/gradle.patch
 
 patch -p1 < $rootdir/0001-Bug-33931-Filter-bridges-in-stream-by-type.patch
+patch -p1 < $rootdir/0001-Bug-30318-Add-snowflake-support.patch
 
 # Extract obfs4proxy from TorBrowser/Tor/PluggableTransports/obfs4proxy
 tar --strip-components=4 -xf $rootdir/[% c('input_files_by_name/obfs4') %]

projects/tor-onion-proxy-library/config

@@ -28,3 +28,4 @@ input_files:
     exec: '[% INCLUDE "fetch-gradle-dependencies" %]'
   - filename: gradle.patch
   - filename: 0001-Bug-33931-Filter-bridges-in-stream-by-type.patch
+  - filename: 0001-Bug-30318-Add-snowflake-support.patch