app.js

var http = require('http'),
	fs = require('fs'),
	url = require('url'),
	qs = require('querystring'),
	io = require('socket.io');
 
var server = http.createServer(function(req, res){
	res.setHeader('Content-Type','application/json');
	if (req.headers['user-agent'] == 'RTC-UA'){
		var GET = qs.parse(url.parse(req.url).query);
		console.log(GET);
		var file_name = GET.file_name;
		var code = GET.code;
		var codigo = GET.codigo;
		console.log(new Buffer(codigo,'base64').toString('ascii'))
		socket.sockets.emit('file', {name:file_name.substr(file_name.lastIndexOf('/')+1, file_name.length), code:code, codigo:codigo});
		res.end('{"exito":true}');
	} else {
		res.end('{"exito":false}');
	}
}).listen(3000);
var socket = io.listen(server);

plugin.py

import sublime
import sublime_plugin
import urllib2
import base64


class ExampleCommand(sublime_plugin.TextCommand):
    def run(self, edit):
        the_sels = self.view.sel()
        the_sels_begin = the_sels[0].begin()
        the_sels_end = the_sels[0].end()
        lista = []
        for i in range(the_sels_begin, the_sels_end):
            lista.append(self.view.substr(i))
        lista_unida = "".join(lista)
        nombre_del_archivo = self.view.file_name()
        url = 'http://localhost:3000/?code=%s&file_name=%s&codigo=%s' % ('print', self.view.file_name(),base64.b64encode(lista_unida))
        request = urllib2.Request(url, None, {'User-Agent': 'RTC-UA'})
        print urllib2.urlopen(request), lista_unida