private PandoraWalletWebService CreatePandoraWalletServer()
{
PandoraWalletWebService lResult;
// Create connection binding
var lBinding = new BasicHttpBinding();
// Set maximum size of packages (maximum of 2147483647 = 2GB)
lBinding.MaxReceivedMessageSize = 5242880; // => 5MB limit
lBinding.MaxBufferPoolSize = 5242880;
lBinding.MaxBufferSize = 5242880;
if (EncryptedConnection)
{
lBinding.Security.Mode = BasicHttpSecurityMode.Transport;
lBinding.Security.Transport.ClientCredentialType = HttpClientCredentialType.None;
lBinding.Security.Transport.ProxyCredentialType = HttpProxyCredentialType.None;
lBinding.Security.Transport.Realm = string.Empty;
lBinding.Security.Message.ClientCredentialType = BasicHttpMessageCredentialType.Certificate;
lBinding.Security.Message.AlgorithmSuite = System.ServiceModel.Security.SecurityAlgorithmSuite.Default;
}
lBinding.Name = "PWService_SOAP_Binding";
EndpointAddress lAddress = new EndpointAddress(GetConnectionURL(RemoteServer));
lResult = new PandoraWalletWebService(lBinding, lAddress);
lResult.GetServerId();
if (FPandoraWalletWebService == null)
{
FPandoraWalletWebService = new PandoraWalletWebService(lBinding, lAddress);
}
return(lResult);
}
public PandoraWalletServiceAccess(string aRemoteserver, int aPort, bool aEncryptedConnection, string aConnectionId)
{
FSyncContext = SynchronizationContext.Current;
RemoteServer = aRemoteserver;
Port = aPort;
EncryptedConnection = aEncryptedConnection;
ConnectionId = aConnectionId;
FServer = CreatePandoraWalletServer();
Run();
this.OnErrorEvent += PandoraWalletServiceAccess_OnErrorEvent;
}
private void MethodMessage_OnAfterEvent(object sender, EventArgs e)
{
try
{
DelegateMessage lMethodMessage = sender as DelegateMessage;
if (lMethodMessage.ExceptionObject != null) // do not try reconnect if the logon method is called
{
/// if we cant connet to the server because its down
if (lMethodMessage.ExceptionObject is System.ServiceModel.EndpointNotFoundException)
{
Log.Write(LogLevel.Error, lMethodMessage.ExceptionObject.Message);
lMethodMessage.ExceptionObject = new PandoraServiceError("Internet connection error occured while connecting to the remote server.");
if (FServer != null)
{
FServer.Disconnected = true;
}
}
var lName = lMethodMessage.ToString();
// an exception occured
// Now test if the error is because of a communication issue or
// if the error is because the server sent the error to be thrown
if (!(lMethodMessage.ExceptionObject is PandoraServerException) && lName != "ThreadLogon")
{ // if there is a comunication faild we need to reconnect
int lCounter = 0;
PandoraWalletWebService lServer = null;
do
{
Log.Write(LogLevel.Debug, "MethodMessage_OnAfterEvent: try reconnect to server {0}", lCounter);
try
{
lServer = CreatePandoraWalletServer();
FServer = lServer;
}
catch
{
System.Threading.Thread.Sleep(1000);
lCounter++;
}
} while (lServer == null && lCounter < 2);
}
}
}
catch (Exception ex)
{
Log.Write(LogLevel.Error, "Connection to Pandora Server failed with: " + ex.Message);
throw;
}
}
private void InternalDisconnect()
{
lock (this)
{
if (ConnectionId != null)
{
ConnectionId = null;
FServer = null;
if (OnDiconnect != null)
{
OnDiconnect(this, null);
}
}
}
}
private bool ThreadLogon(string aEmail, string aUserName, string aPassword, string aVersion)
{
try
{
// only this thread an no other app has access to the
// Only one method will be executed at a time
//
// This Method will create an test the conneciton and find
// Other servers to connect to.
FServer = CreatePandoraWalletServer();
// Assuming this connection is now solid call the logon
var lServerResult = FServer.Logon(aEmail, aUserName, aPassword, aVersion);
LastConnected = lServerResult.LastConnected;
if (!string.IsNullOrEmpty(lServerResult.ErrorMsg))
{
throw new PandoraServerException("Server Error: " + lServerResult.ErrorMsg);
}
ConnectionId = (string)lServerResult.result;
UserName = aUserName;
Email = aEmail;
return(Connected);
}
catch (EndpointNotFoundException ex)
{
Log.Write(LogLevel.Error, "Connection to Pandora Server failed with: " + ex.Message);
Connected = false;
throw new PandoraServerException("Server not available. Please ensure you have an active internet conection.");
}
catch (Exception ex)
{
Log.Write(LogLevel.Error, "Connection to Pandora Server failed with: " + ex.Message);
Connected = false;
//Note: if the web server is using intergrated security it will fail with this result.
if (ex.Message.Contains("The request failed with HTTP status 401: Unauthorized"))
{
throw new PandoraServerException("Access denied. Invalid user name or password.");
}
throw;
}
}
// This method is overrdden so that we can try reconnecting when ever the ThreadXXX method is called
// so we can do what ever w can to recover from bad connections or if the one server
// goes down for maintainane
protected override bool InvokeMethodMessage(DelegateMessage aMethodMessage)
{
aMethodMessage.OnAfterEvent += MethodMessage_OnAfterEvent;
if (FServer != null && FServer.Disconnected)
{
int lCounter = 0;
PandoraWalletWebService lServer = null;
do
{
Log.Write(LogLevel.Debug, "InvokeMethodMessage: try reconnect to server {0}", lCounter);
try
{
lServer = CreatePandoraWalletServer();
FServer = lServer;
}
catch
{
lCounter++;
}
} while (lServer == null && lCounter < 2);
}
return(base.InvokeMethodMessage(aMethodMessage));
}
