public async Task <bool> IsValidDomain(string url)
{
url = DomainValidations.StripProtocol(url);
url = DomainValidations.StripUri(url);
// Get response
var message = await _client.GetAsync($"https://dns.google.com/resolve?name={url}&type=A");
if (!message.IsSuccessStatusCode)
{
return(false);
}
var content = await message.Content.ReadAsStringAsync();
var response = JsonSerializer.Deserialize <Dictionary <string, JsonElement> >(content);
// Parse response
if (response.TryGetValue("Status", out var value))
{
return(value.GetInt32() == 0);
}
// Not valid
return(false);
}
public void StripUriReturnsDomainWhenUriNotPresent()
{
Assert.Equal(DomainWithoutUri, DomainValidations.StripUri(DomainWithoutUri));
}