twisted.web2 auto reconnecting browser

Making use web2 Broker Class from http://code.google.com/p/twisted-web2-client

class Browser:
    #Init Channel
    #Authenticate Channel
    #Send Channel
    #Recieve Channel
    def __init__(self, timeout=180 ):
        self.timeout = timeout
        self.conn = Broker()
        self.headers = {}
        self.response_headers = None

    def parse_response_headers(self, headers):
        self.response_headers = headers
        self.raw_headers = headers._raw_headers
        if headers.hasHeader('set-cookie'):
            parseSetCookies = http_headers.parseSetCookie(headers.getRawHeaders('set-cookie'))
            self.headers['Cookie']= parseSetCookies

    def getResponseBody(self, resp):
        d = defer.Deferred()
        self.parse_response_headers(resp.headers)
        stack = []
        stream_mod.readStream(resp.stream, stack.append).addCallback(lambda x: ''.join(stack)).addCallbacks(d.callback, d.errback)
        return d

    def connect(self, uri, postdata=None, method='GET', *args, **kwargs):
        d = self.conn.ask(uri, method, self.headers, postdata,timeout=self.timeout, *args, **kwargs).addCallback(self.getResponseBody)
        return d