def get_twitch_auth_tokens(fb_uname, fb_pword):

    driver = webdriver.PhantomJS()
    driver.get("https://www.twitch.tv/login")

    # log in via facebook
    driver.find_element_by_xpath("//button[@class='fb_button button']").click()
    driver.switch_to_window(driver.window_handles[1]) # switch to fb popup
    driver.find_element_by_xpath("//input[@id='email']").send_keys(fb_uname)
    driver.find_element_by_xpath("//input[@id='pass']").send_keys(fb_pword)
    driver.find_element_by_xpath("//input[@type='submit']").click()
    time.sleep(5) # gotta wait for this to properly log in
    driver.switch_to_window(driver.window_handles[0]) # switch back

    #
    driver.get("https://www.twitch.tv/kripparian")

    # save the cookies of interest
    twitch_persistent = ""
    twitch_api_token = ""
    cookies = driver.get_cookies()
    for cookie in cookies:
        if cookie['name'] == "persistent":
            twitch_persistent = cookie['value']
        if cookie['name'] == "api_token":
            twitch_api_token = cookie['value']
    driver.quit()

    return twitch_api_token, twitch_persistent