public void TestParsing()
{
var dateTime = DateTime.Now;
var usage = new NetworkLicenseUsage("computerId", "ip", "userName", "licenseSignature", dateTime);
Assert.AreEqual("computerId", usage.ComputerId);
Assert.AreEqual("ip", usage.Ip);
Assert.AreEqual("licenseSignature", usage.LicenseSignature);
Assert.AreEqual("userName", usage.UserName);
//Assert.IsTrue(ObjectHelper.AreEqual(dateTime, usage.StartDateTime));
var networkString = usage.ToNetworkMessage();
var usage2 = NetworkLicenseUsage.Parse(networkString);
Assert.AreEqual(usage.ComputerId, usage2.ComputerId);
Assert.AreEqual(usage.Ip, usage2.Ip);
Assert.AreEqual(usage.LicenseSignature, usage2.LicenseSignature);
Assert.AreEqual(usage.UserName, usage2.UserName);
//Assert.IsTrue(ObjectHelper.AreEqual(usage.StartDateTime, usage2.StartDateTime));
}
private List <NetworkLicenseUsage> BroadcastMessage(string ipAddress, string message, int maxTimeout = 1000)
{
var licenseUsages = new Dictionary <string, NetworkLicenseUsage>();
Log.Debug("Broadcasting via ip '{0}' to see how much users are currently using the license", ipAddress);
try
{
using (var udpClient = new UdpClient())
{
udpClient.Client.ReceiveTimeout = maxTimeout;
udpClient.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
udpClient.EnableBroadcast = true;
udpClient.Client.Bind(new IPEndPoint(IPAddress.Parse(ipAddress), 0));
var sendBuffer = Encoding.ASCII.GetBytes(message);
var remoteEndPoint = new IPEndPoint(IPAddress.Broadcast, Port);
udpClient.Send(sendBuffer, sendBuffer.Length, remoteEndPoint);
var endDateTime = DateTime.Now.AddMilliseconds(maxTimeout);
while (endDateTime >= DateTime.Now)
{
try
{
var ipEndPoint = new IPEndPoint(IPAddress.Any, 0);
var receiveBuffer = udpClient.Receive(ref ipEndPoint);
if (receiveBuffer != null && receiveBuffer.Length > 0)
{
var receivedMessage = Encoding.ASCII.GetString(receiveBuffer);
Log.Debug("Received message '{0}' from '{1}'", receivedMessage, ipEndPoint.Address);
var licenseUsage = NetworkLicenseUsage.Parse(receivedMessage);
if (licenseUsage == null)
{
continue;
}
if (string.Equals(licenseUsage.LicenseSignature, message))
{
Log.Debug("Received message from '{0}' that license is being used", ipEndPoint.Address);
var computerId = licenseUsage.ComputerId;
var add = true;
// Only update if this is an older timestamp
if (licenseUsages.ContainsKey(computerId) && (licenseUsages[computerId].StartDateTime < licenseUsage.StartDateTime))
{
add = false;
}
if (add)
{
licenseUsages[computerId] = licenseUsage;
}
}
}
}
catch (SocketException)
{
// ignore
}
}
}
}
catch (Exception ex)
{
Log.Error(ex, "Failed to broadcast message, defaulting to 0 currently active licences");
}
return(licenseUsages.Values.ToList());
}