commit ecc251d0a73f7e2034a271efd28036a0108b8688 Author: Georg Koppen gk@torproject.org Date: Sat May 9 19:33:18 2020 +0000

Bug 30318: Add snowflake support --- service/src/main/assets/common/bridges.txt | 2 ++ .../torproject/android/service/CustomTorInstaller.java | 18 ++++++++++++------ .../org/torproject/android/service/TorService.java | 8 +++++--- 3 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/service/src/main/assets/common/bridges.txt b/service/src/main/assets/common/bridges.txt index 9ab9098..a913c11 100644 --- a/service/src/main/assets/common/bridges.txt +++ b/service/src/main/assets/common/bridges.txt @@ -13,3 +13,5 @@ obfs4 146.57.248.225:22 10A6CD36A537FCE513A322361547444B393989F0 cert=K1gDtDAIcU obfs4 45.145.95.6:27015 C5B7CD6946FF10C5B3E89691A7D3F2C122D2117C cert=TD7PbUO0/0k6xYHMPW3vJxICfkMZNdkRrb63Zhl5j9dW3iRGiCx0A7mPhe5T2EDzQ35+Zw iat-mode=0 obfs4 [2a0c:4d80:42:702::1]:27015 C5B7CD6946FF10C5B3E89691A7D3F2C122D2117C cert=TD7PbUO0/0k6xYHMPW3vJxICfkMZNdkRrb63Zhl5j9dW3iRGiCx0A7mPhe5T2EDzQ35+Zw iat-mode=0 meek_lite 0.0.2.0:2 97700DFE9F483596DDA6264C4D7DF7641E1E39CE url=https://meek.azureedge.net/ front=ajax.aspnetcdn.com + +snowflake 0.0.3.0:1 2B280B23E1107BB62ABFC40DDCC8824814F80A72 diff --git a/service/src/main/java/org/torproject/android/service/CustomTorInstaller.java b/service/src/main/java/org/torproject/android/service/CustomTorInstaller.java index 198c981..52bc4fe 100644 --- a/service/src/main/java/org/torproject/android/service/CustomTorInstaller.java +++ b/service/src/main/java/org/torproject/android/service/CustomTorInstaller.java @@ -40,14 +40,17 @@ public class CustomTorInstaller extends TorInstaller { @Override public InputStream openBridgesStream() throws IOException { /* - BridgesList is an overloaded field, which can cause some confusion. The list can be: - 1) a filter like obfs4 or meek OR 2) it can be a custom bridge - For (1), we just pass back all bridges, the filter will occur elsewhere in the library. - For (2) we return the bridge list as a raw stream - If length is greater than 5, then we know this is a custom bridge + BridgesList is an overloaded field, which can cause some confusion. + The list can be: + 1) a filter like obfs4, meek, or snowflake OR + 2) it can be a custom bridge + For (1), we just pass back all bridges, the filter will occur + elsewhere in the library. + For (2) we return the bridge list as a raw stream. + If length is greater than 9, then we know this is a custom bridge */ String userDefinedBridgeList = Prefs.getBridgesList(); - byte bridgeType = (byte) (userDefinedBridgeList.length() > 5 ? 1 : 0); + byte bridgeType = (byte) (userDefinedBridgeList.length() > 9 ? 1 : 0); // Terrible hack. Must keep in sync with topl::addBridgesFromResources. if (bridgeType == 0) { switch (userDefinedBridgeList) { @@ -57,6 +60,9 @@ public class CustomTorInstaller extends TorInstaller { case "meek": bridgeType = 3; break; + case "snowflake": + bridgeType = 4; + break; } }

diff --git a/service/src/main/java/org/torproject/android/service/TorService.java b/service/src/main/java/org/torproject/android/service/TorService.java index 16d2537..971c2e9 100644 --- a/service/src/main/java/org/torproject/android/service/TorService.java +++ b/service/src/main/java/org/torproject/android/service/TorService.java @@ -368,10 +368,12 @@ public final class TorService extends Service implements TorServiceConstants, Or

//Check bridges to see if we need this File nativeDir = new File(getApplicationInfo().nativeLibraryDir); - File pluggableTransport = new File(nativeDir, "libObfs4proxy.so"); - if(!pluggableTransport.canExecute()) pluggableTransport.setExecutable(true); + File pluggableTransportObfs = new File(nativeDir, "libObfs4proxy.so"); + if(!pluggableTransportObfs.canExecute()) pluggableTransportObfs.setExecutable(true); + File pluggableTransportSnow = new File(nativeDir, "libSnowflake.so"); + if(!pluggableTransportSnow.canExecute()) pluggableTransportSnow.setExecutable(true);

- builder.configurePluggableTransportsFromSettings(pluggableTransport); + builder.configurePluggableTransportsFromSettings(pluggableTransportObfs, pluggableTransportSnow); mDataService.updateConfigBuilder(builder); onionProxyManager.getTorInstaller().updateTorConfigCustom (builder.asString());