public async Task Query_EDNS()
{
var doh = new DohClient();
var query = new Message
{
RD = true,
Questions =
{
new Question {
Name = "ipfs.io", Type = DnsType.TXT
}
},
AdditionalRecords =
{
new OPTRecord
{
DO = true,
Options =
{
new EdnsNSIDOption(),
new EdnsKeepaliveOption(),
new EdnsPaddingOption {
Padding = new byte[]{ 0, 0, 0, 0 }
}
}
}
}
};
var response = await doh.QueryAsync(query);
Assert.IsNotNull(response);
Assert.AreNotEqual(0, response.Answers.Count);
}
public void Resolve_Unknown()
{
var doh = new DohClient();
ExceptionAssert.Throws <IOException>(() =>
{
var _ = doh.ResolveAsync("emanon.noname").Result;
});
}
public async Task Resolve()
{
var doh = new DohClient();
var addresses = await doh.ResolveAsync("cloudflare-dns.com");
Assert.AreNotEqual(0, addresses.Count());
Assert.IsTrue(addresses.Any(a => a.AddressFamily == AddressFamily.InterNetwork));
Assert.IsTrue(addresses.Any(a => a.AddressFamily == AddressFamily.InterNetworkV6));
}
public async Task Reverse()
{
var doh = new DohClient();
var name = await doh.ResolveAsync(IPAddress.Parse("1.1.1.1"));
Assert.AreEqual("one.one.one.one", name);
name = await doh.ResolveAsync(IPAddress.Parse("2606:4700:4700::1111"));
Assert.AreEqual("one.one.one.one", name);
}
public async Task Resolve_Reverse()
{
var doh = new DohClient();
var github = "github.com";
var addresses = await doh.ResolveAsync(github);
foreach (var address in addresses)
{
var name = await doh.ResolveAsync(address);
StringAssert.EndsWith(name.ToString(), ".com");
}
}
public async Task Query()
{
var doh = new DohClient();
var query = new Message {
RD = true
};
query.Questions.Add(new Question {
Name = "ipfs.io", Type = DnsType.TXT
});
var response = await doh.QueryAsync(query);
Assert.IsNotNull(response);
Assert.AreNotEqual(0, response.Answers.Count);
}
public void Query_UnknownName()
{
var doh = new DohClient();
var query = new Message {
RD = true
};
query.Questions.Add(new Question {
Name = "emanon.noname.google.com", Type = DnsType.A
});
ExceptionAssert.Throws <IOException>(() =>
{
var _ = doh.QueryAsync(query).Result;
}, "DNS error 'NameError'.");
}
public void Query_UnknownName_NoThrow()
{
using (var doh = new DohClient {
ThrowResponseError = false
})
{
var query = new Message {
RD = true
};
query.Questions.Add(new Question {
Name = "emanon.noname.google.com", Type = DnsType.A
});
var result = doh.QueryAsync(query).Result;
Assert.AreEqual(MessageStatus.NameError, result.Status);
}
}
public static async System.Threading.Tasks.Task yeet()
{
var dns = new Makaretu.Dns.DohClient();
//pick your doh url ---> github.com/curl/curl/wiki/DNS-over-HTTPS
//using xfinity as dns over https server.
dns.ServerUrl = "https://doh.xfinity.com/dns-query";
//query for twitter IP
var response = dns.QueryAsync("twitter.com", DnsType.A);
Console.WriteLine(response.Result.Answers.Count);
foreach (var item in response.Result.Answers)
{
Console.WriteLine(item.ToString());
}
}
public void Query_Timeout()
{
var doh = new DohClient
{
Timeout = TimeSpan.FromMilliseconds(1)
};
var query = new Message {
RD = true
};
query.Questions.Add(new Question {
Name = "ipfs-x.io", Type = DnsType.TXT
});
ExceptionAssert.Throws <TaskCanceledException>(() =>
{
var _ = doh.QueryAsync(query).Result;
});
}
public async Task Query_SecureEuServer()
{
var doh = new DohClient
{
ServerUrl = "https://doh.securedns.eu/dns-query"
};
var query = new Message {
RD = true
};
query.Questions.Add(new Question {
Name = "ipfs.io", Type = DnsType.TXT
});
var response = await doh.QueryAsync(query);
Assert.IsNotNull(response);
Assert.AreNotEqual(0, response.Answers.Count);
}
public void Query_InvalidServer()
{
var doh = new DohClient
{
ServerUrl = "https://emanon.noname"
};
var query = new Message {
RD = true
};
query.Questions.Add(new Question {
Name = "emanon.noname.google.com", Type = DnsType.A
});
ExceptionAssert.Throws <Exception>(() =>
{
var _ = doh.QueryAsync(query).Result;
});
}
public async Task SecureQuery_Has_RRs()
{
var dns = new DohClient();
var query = new Message {
RD = true
}.UseDnsSecurity();
query.Questions.Add(new Question {
Name = "cloudflare-dns.com", Type = DnsType.AAAA
});
var response = await dns.QueryAsync(query);
Assert.IsNotNull(response);
Assert.AreNotEqual(0, response.Answers.Count);
var opt = response.AdditionalRecords.OfType <OPTRecord>().Single();
Assert.AreEqual(true, opt.DO);
var rrsig = response.Answers.OfType <RRSIGRecord>().Single();
Assert.AreEqual(DnsType.AAAA, rrsig.TypeCovered);
}
public void Server()
{
var doh = new DohClient();
Assert.IsNotNull(doh.ServerUrl);
}