app/src/main/java/de/blinkt/openvpn/core/connection/Obfs4Connection.java


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package de.blinkt.openvpn.core.connection;

import static se.leap.bitmaskclient.base.utils.BuildConfigHelper.useObfsVpn;
import static se.leap.bitmaskclient.pluggableTransports.ShapeshifterClient.DISPATCHER_IP;
import static se.leap.bitmaskclient.pluggableTransports.ShapeshifterClient.DISPATCHER_PORT;

import se.leap.bitmaskclient.pluggableTransports.HoppingObfsVpnClient;
import se.leap.bitmaskclient.pluggableTransports.Obfs4Options;
import se.leap.bitmaskclient.pluggableTransports.ObfsVpnClient;


/**
 * Created by cyberta on 08.03.19.
 */

public class Obfs4Connection extends Connection {

    private static final String TAG = Obfs4Connection.class.getName();
    private Obfs4Options options;

    public Obfs4Connection(Obfs4Options options) {
        if (useObfsVpn()) {
            setServerName(options.gatewayIP);
            setServerPort(options.transport.getPorts()[0]);
            setProxyName(ObfsVpnClient.SOCKS_IP);
            setProxyType(ProxyType.SOCKS5);
            switch (options.transport.getTransportType()) {
                case OBFS4:
                    setUseUdp(false);
                    setProxyPort(String.valueOf(ObfsVpnClient.SOCKS_PORT.get()));
                    break;
                case OBFS4_HOP:
                    setUseUdp(true);
                    setProxyPort(String.valueOf(HoppingObfsVpnClient.PORT));
                    break;
                default:break;
            }
        } else {
            setServerName(DISPATCHER_IP);
            setServerPort(DISPATCHER_PORT);
            setProxyName("");
            setProxyPort("");
            setProxyType(ProxyType.NONE);

            // while udp/kcp might be used on the wire,
            // we don't use udp for openvpn in case of a obfs4 connection
            setUseUdp(false);
        }
        setProxyAuthUser(null);
        setProxyAuthPassword(null);
        setUseProxyAuth(false);
        this.options = options;
    }

    @Override
    public Connection clone() throws CloneNotSupportedException {
        Obfs4Connection connection = (Obfs4Connection) super.clone();
        connection.options = this.options;
        return connection;
    }

    @Override
    public TransportType getTransportType() {
        return TransportType.OBFS4;
    }


    public Obfs4Options getObfs4Options() {
        return options;
    }

}