squashed commit for Pluggable Transports

* implement handling of different provider API version (v1 and v2)
* detect provider's obfs support
* shapeshifter-dispatcher installation
* necessary changes to control shapeshifter-dispatcher from Bitmask
* route openvpn traffic over shapeshifter-dispatcher

1 files changed, 83 insertions, 0 deletions

diff --git a/app/src/main/java/de/blinkt/openvpn/core/connection/Obfs4Connection.java b/app/src/main/java/de/blinkt/openvpn/core/connection/Obfs4Connection.java
new file mode 100644
index 00000000..790b8b1a
--- /dev/null
+++ b/app/src/main/java/de/blinkt/openvpn/core/connection/Obfs4Connection.java
@@ -0,0 +1,83 @@
+package de.blinkt.openvpn.core.connection;
+
+import org.json.JSONObject;
+
+/**
+ * Created by cyberta on 08.03.19.
+ */
+
+public class Obfs4Connection extends Connection {
+
+    private static final String TAG = Obfs4Connection.class.getName();
+
+
+    private String mObfs4RemoteProxyName = "";
+    private String mObfs4RemoteProxyPort = "";
+    private String mObfs4Certificate = "";
+    private String mObfs4IatMode = "";
+
+    public Obfs4Connection() {
+        setDefaults();
+    }
+
+    public Obfs4Connection(Connection connection) {
+        mObfs4RemoteProxyName = connection.getServerName();
+        setConnectTimeout(connection.getConnectTimeout());
+        setCustomConfiguration(connection.getCustomConfiguration());
+        setUseCustomConfig(connection.isUseCustomConfig());
+
+        setDefaults();
+    }
+
+    private void setDefaults() {
+        setUseUdp(false);
+        setServerName("127.0.0.1");
+        setServerPort("");
+        setProxyName("");
+        setProxyPort("");
+        setProxyAuthUser(null);
+        setProxyAuthPassword(null);
+        setProxyType(ProxyType.NONE);
+        setUseProxyAuth(false);
+    }
+
+    public void setTransportOptions(JSONObject jsonObject) {
+        mObfs4Certificate = jsonObject.optString("cert");
+        mObfs4IatMode = jsonObject.optString("iat-mode");
+    }
+
+    @Override
+    public Connection clone() throws CloneNotSupportedException {
+        return super.clone();
+    }
+
+    @Override
+    public TransportType getTransportType() {
+        return TransportType.OBFS4;
+    }
+
+    public String getmObfs4RemoteProxyName() {
+        return mObfs4RemoteProxyName;
+    }
+
+    public void setObfs4RemoteProxyName(String mObfs4RemoteProxyName) {
+        this.mObfs4RemoteProxyName = mObfs4RemoteProxyName;
+    }
+
+    public String getmObfs4RemoteProxyPort() {
+        return mObfs4RemoteProxyPort;
+    }
+
+    public void setObfs4RemoteProxyPort(String mObfs4RemoteProxyPort) {
+        this.mObfs4RemoteProxyPort = mObfs4RemoteProxyPort;
+    }
+
+    public String getmObfs4Certificate() {
+        return mObfs4Certificate;
+    }
+
+    public String getmObfs4IatMode() {
+        return mObfs4IatMode;
+    }
+
+}