/// <summary>
/// Sends IoP protocol message over the network stream.
/// </summary>
/// <param name="Data">Message to send.</param>
public async Task SendMessageAsync(Message Data)
{
string dataStr = Data.ToString();
log.Trace("()\n{0}", dataStr.Substring(0, Math.Min(dataStr.Length, 512)));
byte[] rawData = ProtocolHelper.GetMessageBytes(Data);
await stream.WriteAsync(rawData, 0, rawData.Length);
log.Trace("(-)");
}
/// <summary>
/// Sends a message to the client over the open network stream.
/// </summary>
/// <param name="Client">TCP client.</param>
/// <param name="Message">Message to send.</param>
/// <returns>true if the message was sent successfully to the target recipient.</returns>
private async Task <bool> SendMessageInternalAsync(TcpClient Client, Message Message)
{
log.Trace("()");
bool res = false;
string msgStr = Message.ToString();
log.Trace("Sending message:\n{0}", msgStr);
byte[] responseBytes = ProtocolHelper.GetMessageBytes(Message);
await StreamWriteLock.WaitAsync();
try
{
NetworkStream stream = Client.GetStream();
if (stream != null)
{
await stream.WriteAsync(responseBytes, 0, responseBytes.Length);
res = true;
}
else
{
log.Info("Connection to the client has been terminated.");
}
}
catch (IOException)
{
log.Info("Connection to the client has been terminated.");
}
finally
{
StreamWriteLock.Release();
}
log.Trace("(-):{0}", res);
return(res);
}
/// <summary>
/// Sends a message to the client over the open network stream.
/// </summary>
/// <param name="Message">Message to send.</param>
/// <returns>true if the message was sent successfully to the target recipient.</returns>
private async Task <bool> SendMessageInternalAsync(Message Message)
{
log.Trace("()");
bool res = false;
string msgStr = Message.ToString();
log.Trace("Sending response to client:\n{0}", msgStr.Substring(0, Math.Min(msgStr.Length, 512)));
byte[] responseBytes = ProtocolHelper.GetMessageBytes(Message);
await StreamWriteLock.WaitAsync();
try
{
if (Stream != null)
{
await Stream.WriteAsync(responseBytes, 0, responseBytes.Length);
res = true;
}
else
{
log.Info("Connection to the client has been terminated.");
}
}
catch (IOException)
{
log.Info("Connection to the client has been terminated.");
}
finally
{
StreamWriteLock.Release();
}
log.Trace("(-):{0}", res);
return(res);
}
/// <summary>
/// Implementation of the test itself.
/// </summary>
/// <returns>true if the test passes, false otherwise.</returns>
public override async Task <bool> RunAsync()
{
IPAddress ServerIp = (IPAddress)ArgumentValues["Server IP"];
int PrimaryPort = (int)ArgumentValues["primary Port"];
log.Trace("(ServerIp:'{0}',PrimaryPort:{1})", ServerIp, PrimaryPort);
bool res = false;
Passed = false;
ProtocolClient client = new ProtocolClient();
try
{
MessageBuilder mb = client.MessageBuilder;
// Step 1
await client.ConnectAsync(ServerIp, PrimaryPort, false);
byte[] payload = Encoding.UTF8.GetBytes("test");
Message requestMessage = mb.CreatePingRequest(payload);
byte[] messageData = ProtocolHelper.GetMessageBytes(requestMessage);
byte[] part1 = new byte[6];
byte[] part2 = new byte[messageData.Length - part1.Length];
Array.Copy(messageData, 0, part1, 0, part1.Length);
Array.Copy(messageData, part1.Length, part2, 0, part2.Length);
await client.SendRawAsync(part1);
log.Trace("Entering 500 seconds wait...");
await Task.Delay(500 * 1000);
log.Trace("Wait completed.");
// We should be disconnected by now, so sending or receiving should throw.
bool disconnectedOk = false;
try
{
await client.SendRawAsync(part2);
await client.ReceiveMessageAsync();
}
catch
{
log.Trace("Expected exception occurred.");
disconnectedOk = true;
}
// Step 1 Acceptance
Passed = disconnectedOk;
res = true;
}
catch (Exception e)
{
log.Error("Exception occurred: {0}", e.ToString());
}
client.Dispose();
log.Trace("(-):{0}", res);
return(res);
}