Support connection through SOCKS5

[om26er]

Autobahn Java should be able to connect to crossbar over SOCKS5. Our Java websocket implementation internally uses the Java Socket class, which supports passing a Proxy object.

I have briefly played with it and it seems I was able to connect to Crossbar using SOCKS5 proxy from autobahn-java with a few lines of code.

If you @oberstet agree, we can add initial support to our websocket implementation.

The user API would only need to provide an instance of a Proxy object (that we define), which supports 4 paramets

• socks5 server address
• socks5 port
• socks5 username
• socks5 password

The last two can be optional if a proxy supports anonymous connection.

[michedsa]

Hi, can you explain how you did?

[om26er]

@michedsa I haven't had the time to implement it but I did play with it at the time I reported this issue. Basically the change needs to happen at the underlying TCP socket level, mostly here

autobahn-java/autobahn/src/main/java/io/crossbar/autobahn/websocket/WebSocketConnection.java

Line 127 in 6ab8a3f

if (mWsScheme.equals("wss")) {

I was able to connect to a crossbar instance using SOCKS5.