public void Advertises_ServiceInstance_Address()
{
var service = new ServiceProfile("x2", "_sdtest-1._udp", 1024, new[] { IPAddress.Loopback });
var done = new ManualResetEvent(false);
var mdns = new MulticastService();
mdns.NetworkInterfaceDiscovered += (s, e) =>
mdns.SendQuery(service.HostName, DnsClass.IN, DnsType.A);
mdns.AnswerReceived += (s, e) =>
{
var msg = e.Message;
if (msg.Answers.OfType <ARecord>().Any(p => p.Name == service.HostName))
{
done.Set();
}
};
try
{
using (var sd = new ServiceDiscovery(mdns))
{
sd.Advertise(service);
mdns.Start();
Assert.IsTrue(done.WaitOne(TimeSpan.FromSeconds(1)), "query timeout");
}
}
finally
{
mdns.Stop();
}
}
public void Discover_AllServices()
{
var service = new ServiceProfile("x", "_sdtest-2._udp", 1024);
var done = new ManualResetEvent(false);
var mdns = new MulticastService();
var sd = new ServiceDiscovery(mdns);
mdns.NetworkInterfaceDiscovered += (s, e) => sd.QueryAllServices();
sd.ServiceDiscovered += (s, serviceName) =>
{
if (serviceName == service.QualifiedServiceName)
{
done.Set();
}
};
try
{
sd.Advertise(service);
mdns.Start();
Assert.IsTrue(done.WaitOne(TimeSpan.FromSeconds(1)), "DNS-SD query timeout");
}
finally
{
sd.Dispose();
mdns.Stop();
}
}
public void Discover_ServiceInstance()
{
var service = new ServiceProfile("y", "_sdtest-2._udp", 1024);
var done = new ManualResetEvent(false);
var mdns = new MulticastService();
var sd = new ServiceDiscovery(mdns);
mdns.NetworkInterfaceDiscovered += (s, e) =>
{
sd.QueryServiceInstances(service.ServiceName);
};
sd.ServiceInstanceDiscovered += (s, e) =>
{
if (e.ServiceInstanceName == service.FullyQualifiedName)
{
Assert.IsNotNull(e.Message);
done.Set();
}
};
try
{
sd.Advertise(service);
mdns.Start();
Assert.IsTrue(done.WaitOne(TimeSpan.FromSeconds(1)), "instance not found");
}
finally
{
sd.Dispose();
mdns.Stop();
}
}
public void Unadvertise()
{
var service = new ServiceProfile("z", "_sdtest-7._udp", 1024);
var done = new ManualResetEvent(false);
var mdns = new MulticastService();
var sd = new ServiceDiscovery(mdns);
mdns.NetworkInterfaceDiscovered += (s, e) => sd.QueryAllServices();
sd.ServiceInstanceShutdown += (s, e) =>
{
if (e.ServiceInstanceName == service.FullyQualifiedName)
{
done.Set();
}
};
try
{
sd.Advertise(service);
mdns.Start();
sd.Unadvertise(service);
Assert.IsTrue(done.WaitOne(TimeSpan.FromSeconds(1)), "goodbye timeout");
}
finally
{
sd.Dispose();
mdns.Stop();
}
}
public void Discover_ServiceInstance_WithAnswersContainingAdditionRecords()
{
var service = new ServiceProfile("y", "_sdtest-2._udp", 1024, new[] { IPAddress.Parse("127.1.1.1") });
var done = new ManualResetEvent(false);
using (var mdns = new MulticastService())
using (var sd = new ServiceDiscovery(mdns)
{
AnswersContainsAdditionalRecords = true
})
{
Message discovered = null;
mdns.NetworkInterfaceDiscovered += (s, e) =>
{
sd.QueryServiceInstances(service.ServiceName);
};
sd.ServiceInstanceDiscovered += (s, e) =>
{
if (e.ServiceInstanceName == service.FullyQualifiedName)
{
Assert.IsNotNull(e.Message);
discovered = e.Message;
done.Set();
}
};
sd.Advertise(service);
mdns.Start();
Assert.IsTrue(done.WaitOne(TimeSpan.FromSeconds(3)), "instance not found");
var additionalRecordsCount =
1 + // SRVRecord
1 + // TXTRecord
1; // AddressRecord
var answersCount = additionalRecordsCount +
1; // PTRRecord
Assert.AreEqual(0, discovered.AdditionalRecords.Count);
Assert.AreEqual(answersCount, discovered.Answers.Count);
}
}
public void ResourceRecords()
{
var profile = new ServiceProfile("me", "_myservice._udp", 1234, new IPAddress[] { IPAddress.Loopback });
profile.Subtypes.Add("apiv2");
profile.AddProperty("someprop", "somevalue");
using (var sd = new ServiceDiscovery())
{
sd.Advertise(profile);
var resourceRecords = sd.NameServer.Catalog.Values.SelectMany(node => node.Resources);
foreach (var r in resourceRecords)
{
Console.WriteLine(r.ToString());
}
}
}
public void ReverseAddressMapping()
{
var service = new ServiceProfile("x9", "_sdtest-1._udp", 1024, new[] { IPAddress.Loopback, IPAddress.IPv6Loopback });
var arpaAddress = IPAddress.Loopback.GetArpaName();
var done = new ManualResetEvent(false);
var mdns = new MulticastService();
Message response = null;
mdns.NetworkInterfaceDiscovered += (s, e) =>
mdns.SendQuery(arpaAddress, DnsClass.IN, DnsType.PTR);
mdns.AnswerReceived += (s, e) =>
{
var msg = e.Message;
if (msg.Answers.OfType <PTRRecord>().Any(p => p.Name == arpaAddress))
{
response = msg;
done.Set();
}
};
try
{
using (var sd = new ServiceDiscovery(mdns))
{
sd.Advertise(service);
mdns.Start();
Assert.IsTrue(done.WaitOne(TimeSpan.FromSeconds(1)), "query timeout");
var answers = response.Answers
.OfType <PTRRecord>()
.Where(ptr => service.HostName == ptr.DomainName);
foreach (var answer in answers)
{
Assert.AreEqual(arpaAddress, answer.Name);
Assert.IsTrue(answer.TTL > TimeSpan.Zero);
Assert.AreEqual(DnsClass.IN, answer.Class);
}
}
}
finally
{
mdns.Stop();
}
}
public void Discover_ServiceInstance_WithAnswersContainingAdditionRecords()
{
var service = new ServiceProfile("y", "_sdtest-2._udp", 1024);
var done = new ManualResetEvent(false);
var mdns = new MulticastService();
var sd = new ServiceDiscovery(mdns)
{
AnswersContainsAdditionalRecords = true
};
Message discovered = null;
mdns.NetworkInterfaceDiscovered += (s, e) =>
{
sd.QueryServiceInstances(service.ServiceName);
};
sd.ServiceInstanceDiscovered += (s, e) =>
{
if (e.ServiceInstanceName == service.FullyQualifiedName)
{
Assert.IsNotNull(e.Message);
discovered = e.Message;
done.Set();
}
};
try
{
sd.Advertise(service);
mdns.Start();
Assert.IsTrue(done.WaitOne(TimeSpan.FromSeconds(1)), "instance not found");
Assert.AreEqual(0, discovered.AdditionalRecords.Count);
Assert.IsTrue(discovered.Answers.Count > 1);
}
finally
{
sd.Dispose();
mdns.Stop();
}
}
