Socks5 support

[mattcg]

This is a replacement for #648 and fixes #141.

The patch adds mattcg/socks5-http-client and mattcg/socks5-https-client as dependencies so that request can use the agent objects from both to support SOCKS proxying.

A test is included. To run it you should have a SOCKS5 server running on localhost:1080. Use the following command to start one if you have sshd running locally:

ssh -N -D 0.0.0.0:1080 localhost

[meteormatt]

👍

[Turbo87]

now that the request library is using optional dependencies it would probably make sense to make this one optional as well. see the latest commits for examples on how to do that.

[mattcg]

Done. It's now an optional dependency.

[Prestaul]

A giant +1 for socks proxy support.

[olivierkaisin]

This is awesome!

[mattcg]

I'm closing this pull request because the change is no longer compatible. The good news is that it's actually very easy to make requests without integrated support. Here's how you can make an HTTPS request via a SOCKS5 proxy, for example:

var Socks5ClientHttpsAgent = require('socks5-https-client/lib/Agent');

request({
  url: 'https://www.google.com/',
  agent: new Socks5ClientHttpsAgent({socksHost: 'tor-proxy-host', socksPort: 9050})
}, function(err, res) {
  // ...
});

[raitucarp]

socks proxy by mattcg is break on node 0.12