def has_esni(hostname):
esni = ESNICheck(hostname)
(tls13, tls13_output) = esni.has_tls13()
(dns, error, dns_output) = esni.has_dns()
(host_ip, is_host_cf) = esni.is_cloudflare()
result = dict()
result["tls13"] = {}
result["tls13"]["enabled"] = True if tls13 else False
result["tls13"]["output"] = tls13_output
result["dns"] = {}
result["dns"]["enabled"] = True if dns else False
result["dns"]["output"] = dns_output
result["dns"]["error"] = error
result["hostname"] = hostname
result["has_esni"] = esni.has_esni()
result["host_ip"] = host_ip
result["is_host_cf"] = is_host_cf
return result
def test_has_tls13():
check = ESNICheck("127.0.0.1")
assert (False, "Unable to connect to port 443") == check.has_tls13()
ssl_check = ESNICheck(" ")
assert (False, "Hostname lookup failed") == ssl_check.has_tls13()