Tornado Web Server, Fix Facebook App IE

auth.py

class OAuth2Mixin(object):
    """Abstract implementation of OAuth v 2."""

    def authorize_redirect(self, redirect_uri=None, client_id=None,
                           client_secret=None, extra_params=None):
        """Redirects the user to obtain OAuth authorization for this service.

        Some providers require that you register a Callback
        URL with your application. You should call this method to log the
        user in, and then call get_authenticated_user() in the handler
        you registered as your Callback URL to complete the authorization
        process.
        """
        args = {
          "redirect_uri": redirect_uri,
          "client_id": client_id
        }
        if extra_params:
            args.update(extra_params)
        # fix FACEBBOK #########################################################
        """def is_msie(self):
            user_agent = self.request.headers["User-Agent"]
            if 'msie' in user_agent.lower():
                return True
            return False

        def msie_header_fix(self):
            if self.is_msie():
                self.set_header("P3P", 'CP="IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT"')
        """
        self.msie_header_fix()
        # fix FACEBBOK #########################################################
        self.redirect(
                url_concat(self._OAUTH_AUTHORIZE_URL, args))

    def _oauth_request_token_url(self, redirect_uri=None, client_id=None,
                                 client_secret=None, code=None,
                                 extra_params=None):
        url = self._OAUTH_ACCESS_TOKEN_URL
        args = dict(
            redirect_uri=redirect_uri,
            code=code,
            client_id=client_id,
            client_secret=client_secret,
            )
        if extra_params:
            args.update(extra_params)
        return url_concat(url, args)