/// <summary>
/// Gets the token from keystone server
/// </summary>
/// <param name="keystoneServer">The keystone server.</param>
/// <param name="userName">The username.</param>
/// <param name="password">The password.</param>
/// <param name="tenantName">Name of the tenant.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Awaitable task with <c>result</c> of token</returns>
public Task<KeystoneResponse> GetToken(Uri keystoneServer, string userName, string password, string tenantName, CancellationToken cancellationToken)
{
return Task.Factory.StartNew <KeystoneResponse>(() =>
{
if (keystoneServer.Segments.Count() < 2)
{
throw new ApplicationException("Incorrect server address. Address must include at least '/v2.0/tokens' at end");
}
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(keystoneServer);
request.ContentType = "application/json";
request.Method = "POST";
KeystoneRequest keyrequest = new KeystoneRequest(userName, password, tenantName);
cancellationToken.ThrowIfCancellationRequested();
//
// Serialize
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(KeystoneRequest));
using (var stream = request.GetRequestStream())
{
serializer.WriteObject(stream, keyrequest);
}
//// DEBUG
using (MemoryStream mStream1 = new MemoryStream())
{
serializer.WriteObject(mStream1, keyrequest);
mStream1.Seek(0, SeekOrigin.Begin);
StreamReader reader1 = new StreamReader(mStream1);
System.Diagnostics.Trace.WriteLine("[Keystone::GetToken][Send request] " + reader1.ReadToEnd());
}
////
cancellationToken.ThrowIfCancellationRequested();
System.Diagnostics.Trace.WriteLine("[Keystone::GetToken] Going to request token from: Server: [" + keystoneServer.ToString() + "] with Username: [" + userName + "] Password: [" + password + "] for Tenant: [" + tenantName + "]");
var tskResponse = request.GetResponseAsync();
cancellationToken.ThrowIfCancellationRequested();
try
{
System.Diagnostics.Trace.WriteLine("[Keystone::GetToken] Connected to server: " + keystoneServer.ToString() + " with username: "******" password: "******"[Keystone::GetToken] RAW response: " + jsonString);
//// DEBUG
KeystoneResponse kResponse = null;
using (System.IO.MemoryStream mStream = new MemoryStream(System.Text.Encoding.Unicode.GetBytes(jsonString)))
{
kResponse = deSerializer.ReadObject(mStream) as KeystoneResponse;
}
return kResponse;
}
catch (FormatException exp_gen)
{
throw;
}
}
catch (Exception exp_gen)
{
System.Diagnostics.Trace.WriteLine("[Keystone::GetToken] Exception occurred while connecting to server: [" + keystoneServer.ToString() + "] with username: [" + userName + "] password: [" + password + "]");
WebException exp_web = exp_gen.InnerException as WebException;
if (exp_web != null)
{
StreamReader reader = new StreamReader(exp_web.Response.GetResponseStream());
AggregateException exp_agr = new AggregateException(reader.ReadToEnd(), exp_web);
throw exp_agr;
}
else
{
throw;
}
}
}
, cancellationToken
, TaskCreationOptions.AttachedToParent | TaskCreationOptions.LongRunning
, TaskScheduler.Default);
}