login.js

"use strict";

var req  = require('request' ),
	opts = require('./config.json');

twoStepLogin(
	'https://openid.stackexchange.com/account/login',
	'https://openid.stackexchange.com/account/login/submit');

function twoStepLogin (loginUrl, submitUrl, next) {
	//TODO replace horrible regex with an actual DOM lookup.
	var fkeyRe = /"fkey"\s+value="([^"]+?)"/;

	req.get(loginUrl, loginPageLoaded);

	function loginPageLoaded (err, resp, body) {
		if (err) {
			//fuck.
			throw err;
			//should probably improve this...
		}

		var fkey = fkeyRe.exec(body);

		submit(fkey);
	}

	function submit (fkey) {
		var outStream = require('fs' ).createWriteStream('out.html');

		req.post(submitUrl, submitPageLoaded ).form({
			email    : opts.username,
			password : opts.password,
			fkey     : fkey
		}).pipe(outStream);
	}


	function submitPageLoaded (err, resp, body) {
		//I hate me.
		if (err) {
			throw err;
		}

		console.log(resp.headers);
	}
}