/// <summary>
/// Opens the connection
/// </summary>
/// <param name="connectionString">The connection string used for authentication.</param>
public void Open(string connectionString)
{
if (this.state == XmppConnectionState.Open)
{
throw new XmppException("Connection must be closed first.");
}
try
{
// Initialization
this.Initialize();
// Build the connection string
this.connectionString = new XmppConnectionString(connectionString);
this.userId = this.connectionString.UserId;
// Connect to the server
if (this.connectionString.UseHttpBinding)
{
this.transport = new HttpTransport();
}
else
{
this.transport = new TcpTransport();
}
this.transportMessageSubscription = this.transport
.OnMessageReceived
.Subscribe(message => this.OnTransportMessageReceived(message));
this.transportStreamInitializedSubscription = this.transport
.OnXmppStreamInitialized
.Subscribe(message => this.OnTransportXmppStreamInitialized(message));
this.transportStreamClosedSubscription = this.transport
.OnXmppStreamClosed
.Subscribe(message => this.OnTransportXmppStreamClosed(message));
this.transport.Open(this.connectionString);
// Initialize XMPP Stream
this.InitializeXmppStream();
// Wait until we receive the Stream features
this.WaitForStreamFeatures();
if (this.transport is ISecureTransport)
{
if (this.connectionString.PortNumber != 443 &&
this.connectionString.PortNumber != 5223)
{
if (this.SupportsFeature(XmppStreamFeatures.SecureConnection))
{
((ISecureTransport)this.transport).OpenSecureConnection();
// Wait until we receive the Stream features
this.WaitForStreamFeatures();
}
}
}
// Perform authentication
bool authenticationDone = this.Authenticate();
if (authenticationDone)
{
// Resource Binding.
this.BindResource();
// Open the session
this.OpenSession();
// Update state
this.state = XmppConnectionState.Open;
}
}
catch (Exception ex)
{
if (this.AuthenticationFailiure != null)
{
this.AuthenticationFailiure(this, new XmppAuthenticationFailiureEventArgs(ex.ToString()));
}
this.Close();
}
}
/// <summary>
/// Closes the connection
/// </summary>
public void Close()
{
if (this.state != XmppConnectionState.Closed)
{
if (this.ConnectionClosing != null)
{
this.ConnectionClosing(this, new EventArgs());
}
try
{
this.state = XmppConnectionState.Closing;
if (this.transport != null)
{
this.transport.Close();
}
}
catch
{
}
finally
{
if (this.initializedStreamEvent != null)
{
this.initializedStreamEvent.Set();
this.initializedStreamEvent = null;
}
if (this.streamFeaturesEvent != null)
{
this.streamFeaturesEvent.Set();
this.streamFeaturesEvent = null;
}
if (this.bindResourceEvent != null)
{
this.bindResourceEvent.Set();
this.bindResourceEvent = null;
}
if (this.initializedStreamEvent != null)
{
this.initializedStreamEvent.Close();
this.initializedStreamEvent = null;
}
if (this.streamFeaturesEvent != null)
{
this.streamFeaturesEvent.Close();
this.streamFeaturesEvent = null;
}
if (this.bindResourceEvent != null)
{
this.bindResourceEvent.Close();
this.bindResourceEvent = null;
}
if (this.transportMessageSubscription != null)
{
this.transportMessageSubscription.Dispose();
this.transportMessageSubscription = null;
}
if (this.transportStreamInitializedSubscription != null)
{
this.transportStreamInitializedSubscription.Dispose();
this.transportStreamInitializedSubscription = null;
}
if (this.transportStreamClosedSubscription != null)
{
this.transportStreamClosedSubscription.Dispose();
this.transportStreamClosedSubscription = null;
}
if (this.transport != null)
{
this.transport = null;
}
this.streamFeatures = this.streamFeatures & (~this.streamFeatures);
this.state = XmppConnectionState.Closed;
this.connectionString = null;
this.userId = null;
}
if (this.ConnectionClosed != null)
{
this.ConnectionClosed(this, new EventArgs());
}
}
}