C# Class GSF.Communication.TlsClient

Represents a TCP-based communication client with SSL authentication and encryption.

Inheritance: ClientBase

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Public Properties

Property	Type	Description
DefaultTrustedCertificatesPath	string

Private Properties

Property	Type	Description
ConnectAsync	void
DefaultLocalCertificateSelectionCallback	System.Security.Cryptography.X509Certificates.X509Certificate
DumpPayloads	void
LoadTrustedCertificates	void
ProcessConnect	void
ProcessIntegratedSecurityAuthentication	void
ProcessReceivePayloadAware	void
ProcessReceivePayloadUnaware	void
ProcessSend	void
ProcessTlsAuthentication	void
ReceivePayloadAwareAsync	void
ReceivePayloadUnawareAsync	void
SendPayloadAsync	void
TerminateConnection	void

Public Methods

Method	Description
ConnectAsync ( ) : WaitHandle	Connects the TlsClient to the server asynchronously.
Disconnect ( ) : void	When overridden in a derived class, disconnects client from the server synchronously.
LoadSettings ( ) : void	Loads saved TlsClient settings from the config file if the ClientBase.PersistSettings property is set to true.
Read ( byte buffer, int startIndex, int length ) : int	When overridden in a derived class, reads a number of bytes from the current received data buffer and writes those bytes into a byte array at the specified offset. This function should only be called from within the ClientBase.ReceiveData event handler. Calling this method outside this event will have unexpected results.
SaveSettings ( ) : void	Saves TlsClient settings to the config file if the ClientBase.PersistSettings property is set to true.
TlsClient ( ) : System	Initializes a new instance of the TlsClient class.
TlsClient ( IContainer container ) : System	Initializes a new instance of the TlsClient class.
TlsClient ( string connectString ) : System	Initializes a new instance of the TlsClient class.

Protected Methods

Method	Description
Dispose ( bool disposing ) : void	Releases the unmanaged resources used by the TlsClient and optionally releases the managed resources.
OnReceiveDataException ( Exception ex ) : void	Raises the ClientBase.ReceiveDataException event.
OnReceiveDataException ( SocketException ex ) : void	Raises the ClientBase.ReceiveDataException event.
OnSendDataException ( Exception ex ) : void	Raises the ClientBase.SendDataException event.
SendDataAsync ( byte data, int offset, int length ) : WaitHandle	When overridden in a derived class, sends data to the server asynchronously.
ValidateConnectionString ( string connectionString ) : void	When overridden in a derived class, validates the specified connectionString.

Private Methods

Method	Description
ConnectAsync ( ConnectState connectState ) : void	Initiates an asynchronous connection attempt.
DefaultLocalCertificateSelectionCallback ( object sender, string targetHost, X509CertificateCollection localCertificates, X509Certificate remoteCertificate, string acceptableIssuers ) : X509Certificate	Returns the certificate set by the user.
DumpPayloads ( ) : void	Dumps payloads from the send queue when the send queue grows too large.
LoadTrustedCertificates ( ) : void	Loads the list of trusted certificates into the default certificate checker.
ProcessConnect ( ConnectState connectState ) : void
ProcessIntegratedSecurityAuthentication ( IAsyncResult asyncResult ) : void
ProcessReceivePayloadAware ( IAsyncResult asyncResult ) : void	Callback method for asynchronous receive operation of payload data in "payload-aware" mode.
ProcessReceivePayloadUnaware ( IAsyncResult asyncResult ) : void	Callback method for asynchronous receive operation of payload data in "payload-unaware" mode.
ProcessSend ( IAsyncResult asyncResult ) : void	Callback method for asynchronous send operation.
ProcessTlsAuthentication ( IAsyncResult asyncResult ) : void	Callback method for asynchronous authenticate operation.
ReceivePayloadAwareAsync ( ReceiveState receiveState ) : void	Initiate method for asynchronous receive operation of payload data in "payload-aware" mode.
ReceivePayloadUnawareAsync ( ReceiveState receiveState ) : void	Initiate method for asynchronous receive operation of payload data in "payload-unaware" mode.
SendPayloadAsync ( SendState sendState ) : void	Sends a payload on the socket.
TerminateConnection ( CancellationToken cancellationToken ) : void	Processes the termination of client.

Method Details

ConnectAsync() public method

Connects the TlsClient to the server asynchronously.

Attempt is made to connect the when it is not disconnected.

public ConnectAsync ( ) : WaitHandle
return	System.Threading.WaitHandle

Disconnect() public method

When overridden in a derived class, disconnects client from the server synchronously.

public Disconnect ( ) : void
return	void

Dispose() protected method

Releases the unmanaged resources used by the TlsClient and optionally releases the managed resources.

protected Dispose ( bool disposing ) : void
disposing	bool	true to release both managed and unmanaged resources; false to release only unmanaged resources.
return	void

LoadSettings() public method

Loads saved TlsClient settings from the config file if the ClientBase.PersistSettings property is set to true.

public LoadSettings ( ) : void
return	void

OnReceiveDataException() protected method

Raises the ClientBase.ReceiveDataException event.

protected OnReceiveDataException ( Exception ex ) : void
ex	System.Exception	Exception to send to event.
return	void

OnReceiveDataException() protected method

Raises the ClientBase.ReceiveDataException event.

protected OnReceiveDataException ( SocketException ex ) : void
ex	System.Net.Sockets.SocketException	Exception to send to event.
return	void

OnSendDataException() protected method

Raises the ClientBase.SendDataException event.

protected OnSendDataException ( Exception ex ) : void
ex	System.Exception	Exception to send to event.
return	void

Read() public method

When overridden in a derived class, reads a number of bytes from the current received data buffer and writes those bytes into a byte array at the specified offset.

This function should only be called from within the ClientBase.ReceiveData event handler. Calling this method outside this event will have unexpected results.

public Read ( byte buffer, int startIndex, int length ) : int
buffer	byte	Destination buffer used to hold copied bytes.
startIndex	int	0-based starting index into destination to begin writing data.
length	int	The number of bytes to read from current received data buffer and write into .
return	int

SaveSettings() public method

Saves TlsClient settings to the config file if the ClientBase.PersistSettings property is set to true.

public SaveSettings ( ) : void
return	void

SendDataAsync() protected method

When overridden in a derived class, sends data to the server asynchronously.

protected SendDataAsync ( byte data, int offset, int length ) : WaitHandle
data	byte	The buffer that contains the binary data to be sent.
offset	int	The zero-based position in the at which to begin sending data.
length	int	The number of bytes to be sent from starting at the .
return	System.Threading.WaitHandle

TlsClient() public method

Initializes a new instance of the TlsClient class.

public TlsClient ( ) : System
return	System

TlsClient() public method

Initializes a new instance of the TlsClient class.

public TlsClient ( IContainer container ) : System
container	IContainer	object that contains the .
return	System

TlsClient() public method

Initializes a new instance of the TlsClient class.

public TlsClient ( string connectString ) : System
connectString	string	Connect string of the . See for format.
return	System

ValidateConnectionString() protected method

When overridden in a derived class, validates the specified connectionString.

protected ValidateConnectionString ( string connectionString ) : void
connectionString	string	The connection string to be validated.
return	void

Property Details

DefaultTrustedCertificatesPath public_oe property

Specifies the default value for the TrustedCertificatesPath property.

public string DefaultTrustedCertificatesPath
return	string