WSServer Component
Properties Methods Events Config Settings Errors
The WSServer component is used to create a WebSocket server.
Syntax
IPWorks.Wsserver
Remarks
The WSServer component functions as a server that facilitates incoming WebSocket connections and offers a convenient means of transmitting and receiving data over the established connections.
To start, the LocalPort property must be specified to a valid port. This port will be used to accept incoming connections. Then, call the StartListening method to start listening on the specified port. The WSServer component supports both plaintext and Secure Sockets Layer/Transport Layer Security (SSL/TLS) connections. The SSLStatus event provides information about the SSL handshake. Additional SSL related settings are also supported via the Config method. The SSLCert properties are used to select a certificate for the server. Note: A valid certificate MUST be selected before the server can function.
Upon a client's connection, the WebSocketOpenRequest event will be fired. To accept the connection, simply allow the event to complete its execution. Conversely, to reject the request, the StatusCode parameter can be set to an appropriate HTTP error code, such as 401.
By default, each instance of WSServer has the capacity to handle up to 1,000 simultaneous incoming connections. You can change the maximum number of simultaneous connections by adjusting the MaxConnections configuration setting. This setting allows you to increase the limit up to 100,000 or decrease it to a lower value based on your needs.
Each connection is identified by a unique ConnectionId, an identifier generated by the component to distinguish individual connections. The ConnectionId is also included as a parameter in WSServer's events to identify the associated connection.
After receiving a connection, incoming data can be accessed through the DataIn event. To transmit data to a client, the Send, SendText, or SendFile methods can be employed, or the DataToSend field can be set accordingly.
Note: Server components are designed to process events as they occur. To ensure that events are processed in a timely manner, DoEvents should be called in a loop after the server is started.
Property List
The following is the full list of the properties of the component with short descriptions. Click on the links for further details.
ConnectionBacklog | This property includes the maximum number of pending connections maintained by the Transmission Control Protocol (TCP)/IP subsystem. |
Connections | A collection of currently connected WebSocket clients. |
DefaultTimeout | An initial timeout value to be used by incoming connections. |
Listening | If set to True, the component accepts incoming connections on LocalPort. |
LocalHost | The name of the local host or user-assigned IP interface through which connections are initiated or accepted. |
LocalPort | This property includes the Transmission Control Protocol (TCP) port in the local host where the component listens. |
SSLAuthenticateClients | If set to True, the server asks the client(s) for a certificate. |
SSLCert | The certificate to be used during SSL negotiation. |
UseSSL | Determines if SSL is negotiated with incoming connections. |
Method List
The following is the full list of the methods of the component with short descriptions. Click on the links for further details.
changeLineMode | Controls whether the component will fire DataIn when an EOL is received for the specified connection. |
config | Sets or retrieves a configuration setting. |
disconnect | This method disconnects the specified client. |
doEvents | Processes events from the internal message queue. |
interrupt | Interrupts a synchronous send to the remote host. |
ping | Sends a Ping request to the remote host. |
send | Sends binary data to the client. |
sendBytes | This method sends binary data to the specified client. |
sendFile | This method sends the file to the remote host. |
sendText | Sends text data to the client. |
setUploadStream | This method sends the data in the specified stream. |
shutdown | This method shuts down the server. |
startListening | This method starts listening for incoming connections. |
stopListening | This method stops listening for new connections. |
Event List
The following is the full list of the events fired by the component with short descriptions. Click on the links for further details.
Connected | Fired when a WebSocket is successfully opened. |
ConnectionRequest | This event is fired when a request for connection comes from a remote host. |
DataIn | Fired when data is received. |
Disconnected | Fired when a WebSocket connection is disconnected. |
Error | Information about errors during data delivery. |
Log | Fires once for each log message. |
Ping | Fired when a ping request or response is received. |
ReadyToSend | This event is fired when the component is ready to send data. |
SSLClientAuthentication | This event is fired when the client presents its credentials to the server. |
SSLConnectionRequest | This event fires when a Secure Sockets Layer (SSL) connection is requested. |
SSLStatus | This event is fired to show the progress of the secure connection. |
WebSocketOpenRequest | Fired when a client attempts to open a WebSocket. |
Config Settings
The following is a list of config settings for the component with short descriptions. Click on the links for further details.
BufferMessage | Indicates whether or not the entire message is buffered before firing the DataIn event. |
DisconnectStatusCode | Specifies the status code when closing a connection. |
DisconnectStatusDescription | Specifies the message associated with the disconnect status code. |
EnablePermessageDeflate | Determines whether or not the component will enable the permessage-deflate extension. |
MaxFrameSize | Specifies the maximum size of the outgoing message in bytes before fragmentation occurs. |
MaxLineLength[ConnectionId] | Determines the maximum line length for a connection when LineMode is True. |
MessageLength[ConnectionId] | The length of the message (in bytes) when sending asynchronously. |
WaitForCloseResponse | Determines whether or not the component will forcibly close a connection. |
AllowedClients | A comma-separated list of host names or IP addresses that can access the component. |
BindExclusively | Whether or not the component considers a local port reserved for exclusive use. |
BlockedClients | A comma-separated list of host names or IP addresses that cannot access the component. |
CloseStreamAfterTransfer | If true, the component will close the upload or download stream after the transfer. |
DefaultConnectionTimeout | The inactivity timeout applied to the SSL handshake. |
InBufferSize | The size in bytes of the incoming queue of the socket. |
KeepAliveInterval | The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received. |
KeepAliveTime | The inactivity time in milliseconds before a TCP keep-alive packet is sent. |
MaxConnections | The maximum number of connections available. |
OutBufferSize | The size in bytes of the outgoing queue of the socket. |
TcpNoDelay | Whether or not to delay when sending packets. |
UseIPv6 | Whether to use IPv6. |
LogSSLPackets | Controls whether SSL packets are logged when using the internal security API. |
ReuseSSLSession | Determines if the SSL session is reused. |
SSLCACerts | A newline separated list of CA certificate to use during SSL client authentication. |
SSLCipherStrength | The minimum cipher strength used for bulk encryption. |
SSLContextProtocol | The protocol used when getting an SSLContext instance. |
SSLEnabledCipherSuites | The cipher suite to be used in an SSL negotiation. |
SSLEnabledProtocols | Used to enable/disable the supported security protocols. |
SSLEnableRenegotiation | Whether the renegotiation_info SSL extension is supported. |
SSLIncludeCertChain | Whether the entire certificate chain is included in the SSLServerAuthentication event. |
SSLKeyLogFile | The location of a file where per-session secrets are written for debugging purposes. |
SSLNegotiatedCipher | Returns the negotiated cipher suite. |
SSLNegotiatedCipherStrength | Returns the negotiated cipher suite strength. |
SSLNegotiatedCipherSuite | Returns the negotiated cipher suite. |
SSLNegotiatedKeyExchange | Returns the negotiated key exchange algorithm. |
SSLNegotiatedKeyExchangeStrength | Returns the negotiated key exchange algorithm strength. |
SSLNegotiatedVersion | Returns the negotiated protocol version. |
SSLServerCACerts | A newline separated list of CA certificate to use during SSL server certificate validation. |
SSLTrustManagerFactoryAlgorithm | The algorithm to be used to create a TrustManager through TrustManagerFactory. |
TLS12SignatureAlgorithms | Defines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal. |
TLS12SupportedGroups | The supported groups for ECC. |
TLS13KeyShareGroups | The groups for which to pregenerate key shares. |
TLS13SignatureAlgorithms | The allowed certificate signature algorithms. |
TLS13SupportedGroups | The supported groups for (EC)DHE key exchange. |
BuildInfo | Information about the product's build. |
GUIAvailable | Whether or not a message loop is available for processing events. |
LicenseInfo | Information about the current license. |
MaskSensitive | Whether sensitive data is masked in log messages. |
UseDaemonThreads | Whether threads created by the component are daemon threads. |
UseInternalSecurityAPI | Whether or not to use the system security libraries or an internal implementation. |
ConnectionBacklog Property (WSServer Component)
This property includes the maximum number of pending connections maintained by the Transmission Control Protocol (TCP)/IP subsystem.
Syntax
public int getConnectionBacklog(); public void setConnectionBacklog(int connectionBacklog);
Default Value
5
Remarks
This property contains the maximum number of pending connections maintained by the TCP/IP subsystem. This value reflects the SOMAXCONN option for the main listening socket. The default value for most systems is 5. You may set this property to a larger value if the server is expected to receive a large number of connections, and queuing them is desirable.
This property is not available at design time.
Connections Property (WSServer Component)
A collection of currently connected WebSocket clients.
Syntax
public WSConnectionMap getConnections();
Remarks
This property contains a collection of currently connected clients. All of the connections may be managed using this property. Each connection is described by the different fields of the WSConnection type.
This collection is a hashtable type of collection, in which the Connection ID string is used as the key to the desired connection. You may acquire the key for a given connection through the Connected or WebSocketOpenRequest events.
This property is read-only.
Please refer to the WSConnection type for a complete list of fields.DefaultTimeout Property (WSServer Component)
An initial timeout value to be used by incoming connections.
Syntax
public int getDefaultTimeout(); public void setDefaultTimeout(int defaultTimeout);
Default Value
0
Remarks
This property is used by the component to set the operational timeout value of all inbound connections once they are established.
This property defines the timeout when sending data. When UseSSL is False a value of 0 means data will be sent asynchronously and a positive value means data is sent synchronously.
When UseSSL is True all data is sent synchronously regardless of the Timeout value.
Listening Property (WSServer Component)
If set to True, the component accepts incoming connections on LocalPort.
Syntax
public boolean isListening(); public void setListening(boolean listening);
Default Value
False
Remarks
This property indicates whether the component is listening for connections on the port specified by the LocalPort property.
Note: Use the StartListening and StopListening methods to control whether the component is listening.
This property is not available at design time.
LocalHost Property (WSServer Component)
The name of the local host or user-assigned IP interface through which connections are initiated or accepted.
Syntax
public String getLocalHost(); public void setLocalHost(String localHost);
Default Value
""
Remarks
The LocalHost property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.
In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the component initiate connections (or accept in the case of server components) only through that interface.
If the component is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).
NOTE: LocalHost is not persistent. You must always set it in code, and never in the property window.
LocalPort Property (WSServer Component)
This property includes the Transmission Control Protocol (TCP) port in the local host where the component listens.
Syntax
public int getLocalPort(); public void setLocalPort(int localPort);
Default Value
0
Remarks
This property must be set before the component can start listening. If its value is 0, then the TCP/IP subsystem picks a port number at random. The port number can be found by checking the value of this property after the component is listening (i.e., after successfully assigning True to the Listening property).
The service port is not shared among servers so two components cannot be listening on the same port at the same time.
SSLAuthenticateClients Property (WSServer Component)
If set to True, the server asks the client(s) for a certificate.
Syntax
public boolean isSSLAuthenticateClients(); public void setSSLAuthenticateClients(boolean SSLAuthenticateClients);
Default Value
False
Remarks
This property is used in conjunction with the SSLClientAuthentication event. Please refer to the documentation of the SSLClientAuthentication event for details.
SSLCert Property (WSServer Component)
The certificate to be used during SSL negotiation.
Syntax
public Certificate getSSLCert(); public void setSSLCert(Certificate SSLCert);
Remarks
The digital certificate that the component will use during SSL negotiation. Set this property to a valid certificate before starting SSL negotiation. To set a certificate, you may set the Encoded field to the encoded certificate. To select a certificate, use the store and subject fields.
Please refer to the Certificate type for a complete list of fields.UseSSL Property (WSServer Component)
Determines if SSL is negotiated with incoming connections.
Syntax
public boolean isUseSSL(); public void setUseSSL(boolean useSSL);
Default Value
False
Remarks
When set to True the component will attempt to negotiate SSL with all connecting clients. To enable SSL support you must supply a valid certificate via the SSLCert property.
The default value is False.
This property is not available at design time.
ChangeLineMode Method (Wsserver Component)
Controls whether the component will fire DataIn when an EOL is received for the specified connection.
Syntax
public void changeLineMode(String connectionId, boolean lineMode);
Remarks
When LineMode is set to false (default), the component will fire the DataIn event once for each message received from the client. When LineMode is set to True, the component will instead fire DataIn for each line of data received. The maximum length of a line can be controlled by the MaxLineLength[ConnectionId]; configuration setting.
Note: This method is offered as a convenience feature, and has no effect on the behavior of the WebSocket protocol.
Config Method (Wsserver Component)
Sets or retrieves a configuration setting.
Syntax
public String config(String configurationString);
Remarks
Config is a generic method available in every component. It is used to set and retrieve configuration settings for the component.
These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the component, access to these internal properties is provided through the Config method.
To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).
To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.
Disconnect Method (Wsserver Component)
This method disconnects the specified client.
Syntax
public void disconnect(String connectionId);
Remarks
Calling this method will disconnect the client specified by the ConnectionId parameter.
DoEvents Method (Wsserver Component)
Processes events from the internal message queue.
Syntax
public void doEvents();
Remarks
When DoEvents is called, the component processes any available events. If no events are available, it waits for a preset period of time, and then returns.
Interrupt Method (Wsserver Component)
Interrupts a synchronous send to the remote host.
Syntax
public void interrupt(String connectionId);
Remarks
This property is called using the Connection ID if you wish to interrupt a connection and stop a file from uploading without disconnecting the client connected to the component. If you use SendFile to upload a file, the component will run synchronously on that Connection ID until it is completed.
Ping Method (Wsserver Component)
Sends a Ping request to the remote host.
Syntax
public void ping(String connectionId);
Remarks
This method sends a Ping request to the remote host and waits for a corresponding Pong response.
The Timeout property specifies how long to wait for the Pong response.
Send Method (Wsserver Component)
Sends binary data to the client.
Syntax
public void send(String connectionId, byte[] data);
Remarks
This method sends the binary data specified by Data to the client specified by ConnectionId.
SendBytes Method (Wsserver Component)
This method sends binary data to the specified client.
Syntax
public void sendBytes(String connectionId, byte[] data);
Remarks
This method sends binary data to the client identified by ConnectionId. To send text, use the SendText method instead.
When Timeout is set to 0 and SSLEnabled is set to False, the component will behave asynchronously. If you are sending data to the remote host faster than it can process it, or faster than the network's bandwidth allows, the outgoing queue might fill up. When this happens, the operation fails with exception 10035: "[10035] Operation would block" (WSAEWOULDBLOCK). You can check this error, and then try to send the data again. . The BytesSent property shows how many bytes were sent (if any). If 0 bytes were sent, then you can wait for the ReadyToSend event before attempting to send data again.
Note: The ReadyToSend event is not fired when part of the data is sent successfully.
When SSLEnabled is True or Timeout is set to a positive value, the component behaves synchronously.
This method sends binary data to the client identified by ConnectionId. To send text, use the SendText method instead.
When Timeout is set to 0 and SSLEnabled is set to False, the component will behave asynchronously. If you are sending data to the remote host faster than it can process it, or faster than the network's bandwidth allows, the outgoing queue might fill up. When this happens, the operation fails with exception 10035: "[10035] Operation would block" (WSAEWOULDBLOCK). You can check this error, and then try to send the data again. . The BytesSent property shows how many bytes were sent (if any). If 0 bytes were sent, then you can wait for the ReadyToSend event before attempting to send data again.
Note: The ReadyToSend event is not fired when part of the data is sent successfully.
When SSLEnabled is True or Timeout is set to a positive value, the component behaves synchronously.
SendFile Method (Wsserver Component)
This method sends the file to the remote host.
Syntax
public void sendFile(String connectionId, String fileName);
Remarks
This method sends the file to the client specified by the ConnectionId.
Note: This method operate synchronously. DefaultTimeout or Timeout must be set to a positive value before calling this method.
SendText Method (Wsserver Component)
Sends text data to the client.
Syntax
public void sendText(String connectionId, String text);
Remarks
This method sends text to the client identified by ConnectionId. To send binary data, use the SendBytes method instead.
When Timeout is set to 0 and SSLEnabled is set to False, the component will behave asynchronously. If you are sending data to the remote host faster than it can process it, or faster than the network's bandwidth allows, the outgoing queue might fill up. When this happens, the operation fails with exception 10035: "[10035] Operation would block" (WSAEWOULDBLOCK). You can check this error, and then try to send the data again. . The BytesSent property shows how many bytes were sent (if any). If 0 bytes were sent, then you can wait for the ReadyToSend event before attempting to send data again.
Note: The ReadyToSend event is not fired when part of the data is sent successfully.
When SSLEnabled is True or Timeout is set to a positive value, the component behaves synchronously.
This method sends text to the client identified by ConnectionId. Data sent with this method will always be treated as text data regardless of the value of DataFormat. The component will UTF-8 encode the supplied text.
SetUploadStream Method (Wsserver Component)
This method sends the data in the specified stream.
Syntax
public void setUploadStream(String connectionId, java.io.InputStream stream);
Remarks
This method sends the data in the specified stream to the connection identified by ConnectionId. The component will automatically close this stream after sending.
Shutdown Method (Wsserver Component)
This method shuts down the server.
Syntax
public void shutdown();
Remarks
This method shuts down the server. Calling this method is equivalent to calling StopListening and then breaking every client connection by calling Disconnect.
StartListening Method (Wsserver Component)
This method starts listening for incoming connections.
Syntax
public void startListening();
Remarks
This method begins listening for incoming connections on the port specified by LocalPort. Once listening, events will fire as new clients connect and data are transferred.
To stop listening for new connections, call StopListening. To stop listening for new connections and to disconnect all existing clients, call Shutdown.
StopListening Method (Wsserver Component)
This method stops listening for new connections.
Syntax
public void stopListening();
Remarks
This method stops listening for new connections. After being called, any new connection attempts will be rejected. Calling this method does not disconnect existing connections.
To stop listening and to disconnect all existing clients, call Shutdown instead.
Connected Event (Wsserver Component)
Fired when a WebSocket is successfully opened.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void connected(WsserverConnectedEvent e) {} ... } public class WsserverConnectedEvent { public String connectionId; }
Remarks
The Connected event is fired when a WebSocket is successfully opened on a connection.
ConnectionId identifies the connection.
ConnectionRequest Event (Wsserver Component)
This event is fired when a request for connection comes from a remote host.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void connectionRequest(WsserverConnectionRequestEvent e) {} ... } public class WsserverConnectionRequestEvent { public String address; public int port; public boolean accept; }
Remarks
This event indicates an incoming connection. The connection is accepted by default. Address and Port will contain information about the remote host requesting the inbound connection. If you want to refuse it, you can set the Accept parameter to False.
DataIn Event (Wsserver Component)
Fired when data is received.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void dataIn(WsserverDataInEvent e) {} ... } public class WsserverDataInEvent { public String connectionId; public int dataFormat; public byte[] text; public boolean EOM; public boolean EOL; }
Remarks
The DataIn event provides the data received from the client identified by the ConnectionId parameter.
The incoming data is provided through the Text parameter.
The DataFormat parameter identifies the encoding (if any) of the data. Possible value are:
0 | If LineMode is disabled, a value of 0 indicates a continuation packet. If LineMode is enabled the value will always be 0, regardless of packet type. |
1 | The data is UTF-8 encoded. |
2 | The data is binary and has no encoding. |
The EOM parameter stands for End Of Message. By default the component will fire the DataIn event as data is received. Larger messages will be fragmented and will cause the event to fire multiple times. When EOM is true within the event this indicates the current fragment is also the final fragment of the message. The component may also be configured to buffer the message internally until the complete message is received. To enable this set BufferMessage to true.
The EOL parameter stands for End of Line. When LineMode is false, EOL will always be false. When LineMode is true, EOL will be True if the DataIn event fired because an EOL was received, and false if the DataIn event fired because MaxLineLength was reached.
Disconnected Event (Wsserver Component)
Fired when a WebSocket connection is disconnected.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void disconnected(WsserverDisconnectedEvent e) {} ... } public class WsserverDisconnectedEvent { public String connectionId; public int statusCode; public String description; }
Remarks
When the connection is closed the StatusCode parameter may be used to determine if the disconnect occurred normally or if there was an error condition. If the connection is closed normally the StatusCode will be 1000. The Description parameter will contain a textual description returned by the server. Common StatusCode values are:
1000 (default) | Normal closure. |
1001 | The resource is going away. For instance the server is shutting down or a browser is navigating away from the page. |
1002 | A protocol error occurred. |
1003 | Unexpected data was received (e.g., an endpoint that only accepts text data could send this if binary data is received). |
1007 | Invalid payload data was received (e.g., an endpoint that receives non-UTF-8 data in a text message could send this). |
1008 | A generic code that indicates the endpoint received a message that violates its policy. |
1009 | A message that was too large was received. |
1010 | A required extension could not be negotiated. |
1011 | An unexpected error occurred. |
Error Event (Wsserver Component)
Information about errors during data delivery.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void error(WsserverErrorEvent e) {} ... } public class WsserverErrorEvent { public String connectionId; public int errorCode; public String description; }
Remarks
The Error event is fired in case of exceptional conditions during message processing. Normally the component throws an exception.
ConnectionId contains an error code and Description contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.
ErrorCode contains an error code and Description contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.
Log Event (Wsserver Component)
Fires once for each log message.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void log(WsserverLogEvent e) {} ... } public class WsserverLogEvent { public String connectionId; public int logLevel; public String message; public String logType; }
Remarks
This event fires once for each log message generated by the component. The verbosity is controlled by the LogLevel setting.
LogLevel indicates the level of message. Possible values are:
0 (None) | No events are logged. |
1 (Info - default) | Informational events are logged. |
2 (Verbose) | Detailed data is logged. |
3 (Debug) | Debug data is logged. |
The value 1 (Info) logs basic information including the URL, HTTP version, and connection status details.
The value 2 (Verbose) logs additional information about the initial HTTP request.
The value 3 (Debug) logs additional debug information (if available).
Message is the log entry.
LogType identifies the type of log entry. Possible values are:
- "Info"
- "Error"
- "Verbose"
- "Debug"
Ping Event (Wsserver Component)
Fired when a ping request or response is received.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void ping(WsserverPingEvent e) {} ... } public class WsserverPingEvent { public String connectionId; public byte[] payload; public boolean response; }
Remarks
This event fires when a ping request or response is received from the client identified by the ConnectionId parameter. This event is informational only. When the component receives a ping request it will automatically reply with a pong.
Payload holds the payload of the request, if any.
Response is true if the incoming packet is a ping response. If the incoming packet is a ping request this is false.
ReadyToSend Event (Wsserver Component)
This event is fired when the component is ready to send data.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void readyToSend(WsserverReadyToSendEvent e) {} ... } public class WsserverReadyToSendEvent { public String connectionId; }
Remarks
The ReadyToSend event indicates that the underlying Transmission Control Protocol (TCP)/IP subsystem is ready to accept data after a failed DataToSend. This event is also fired immediately after a connection is established.
SSLClientAuthentication Event (Wsserver Component)
This event is fired when the client presents its credentials to the server.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void SSLClientAuthentication(WsserverSSLClientAuthenticationEvent e) {} ... } public class WsserverSSLClientAuthenticationEvent { public String connectionId; public byte[] certEncoded; public String certSubject; public String certIssuer; public String status; public boolean accept; }
Remarks
This event enables the server to decide whether or not to continue. The Accept parameter is a recommendation on whether to continue or to close the connection. This is just a suggestion: application software must use its own logic to determine whether or not to continue.
When Accept is False, Status shows why the verification failed (otherwise, Status contains the string "OK").
SSLConnectionRequest Event (Wsserver Component)
This event fires when a Secure Sockets Layer (SSL) connection is requested.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void SSLConnectionRequest(WsserverSSLConnectionRequestEvent e) {} ... } public class WsserverSSLConnectionRequestEvent { public String connectionId; public String supportedCipherSuites; public String supportedSignatureAlgs; public int certStoreType; public String certStore; public String certPassword; public String certSubject; }
Remarks
This event fires when an SSL connection is requested and SSLProvider is set to Internal. This event provides an opportunity to select an alternative certificate to the connecting client. This event does not fire when SSLProvider is set to Platform.
This event allows the component to be configured to use both RSA and ECDSA certificates depending on the connecting client's capabilities.
ConnectionId is the connection Id of the client requesting the connection.
SupportedCipherSuites is a comma-separated list of cipher suites that the client supports.
SupportedSignatureAlgs is a comma-separated list of certificate signature algorithms that the client supports.
CertStoreType is the store type of the alternate certificate to use for this connection. The component supports both public and private keys in a variety of formats. When the cstAuto value is used, the component will automatically determine the type. This field can take one of the following values:
0 (cstUser - default) | For Windows, this specifies that the certificate store is a certificate store owned by the current user.
Note: This store type is not available in Java. |
1 (cstMachine) | For Windows, this specifies that the certificate store is a machine store.
Note: This store type is not available in Java. |
2 (cstPFXFile) | The certificate store is the name of a PFX (PKCS#12) file containing certificates. |
3 (cstPFXBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) format. |
4 (cstJKSFile) | The certificate store is the name of a Java Key Store (JKS) file containing certificates.
Note: This store type is only available in Java. |
5 (cstJKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in Java Key Store (JKS) format.
Note: this store type is only available in Java. |
6 (cstPEMKeyFile) | The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate. |
7 (cstPEMKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a private key and an optional certificate. |
8 (cstPublicKeyFile) | The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate. |
9 (cstPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a PEM- or DER-encoded public key certificate. |
10 (cstSSHPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains an SSH-style public key. |
11 (cstP7BFile) | The certificate store is the name of a PKCS#7 file containing certificates. |
12 (cstP7BBlob) | The certificate store is a string (binary) representing a certificate store in PKCS#7 format. |
13 (cstSSHPublicKeyFile) | The certificate store is the name of a file that contains an SSH-style public key. |
14 (cstPPKFile) | The certificate store is the name of a file that contains a PPK (PuTTY Private Key). |
15 (cstPPKBlob) | The certificate store is a string (binary) that contains a PPK (PuTTY Private Key). |
16 (cstXMLFile) | The certificate store is the name of a file that contains a certificate in XML format. |
17 (cstXMLBlob) | The certificate store is a string that contains a certificate in XML format. |
18 (cstJWKFile) | The certificate store is the name of a file that contains a JWK (JSON Web Key). |
19 (cstJWKBlob) | The certificate store is a string that contains a JWK (JSON Web Key). |
21 (cstBCFKSFile) | The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store).
Note: This store type is only available in Java and .NET. |
22 (cstBCFKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format.
Note: This store type is only available in Java and .NET. |
23 (cstPKCS11) | The certificate is present on a physical security key accessible via a PKCS#11 interface.
To use a security key, the necessary data must first be collected using the CertMgr component. The ListStoreCertificates method may be called after setting CertStoreType to cstPKCS11, CertStorePassword to the PIN, and CertStore to the full path of the PKCS#11 DLL. The certificate information returned in the CertList event's CertEncoded parameter may be saved for later use. When using a certificate, pass the previously saved security key information as the Store and set StorePassword to the PIN. Code Example. SSH Authentication with Security Key:
|
99 (cstAuto) | The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically. |
CertStore is the store name or location of the alternate certificate to use for this connection.
Designations of certificate stores are platform dependent.
The following designations are the most common User and Machine certificate stores in Windows:
MY | A certificate store holding personal certificates with their associated private keys. |
CA | Certifying authority certificates. |
ROOT | Root certificates. |
In Java, the certificate store normally is a file containing certificates and optional private keys.
When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).
CertPassword is the password of the certificate store containing the alternate certificate to use for this connection.
CertSubject is the subject of the alternate certificate to use for this connection.
The special value * matches any subject and will select the first certificate in the store. The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are as follows:
Field | Meaning |
CN | Common Name. This is commonly a hostname like www.server.com. |
O | Organization |
OU | Organizational Unit |
L | Locality |
S | State |
C | Country |
E | Email Address |
If a field value contains a comma, it must be quoted.
SSLStatus Event (Wsserver Component)
This event is fired to show the progress of the secure connection.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void SSLStatus(WsserverSSLStatusEvent e) {} ... } public class WsserverSSLStatusEvent { public String connectionId; public String message; }
Remarks
The event is fired for informational and logging purposes only. It is used to track the progress of the connection.
WebSocketOpenRequest Event (Wsserver Component)
Fired when a client attempts to open a WebSocket.
Syntax
public class DefaultWsserverEventListener implements WsserverEventListener { ... public void webSocketOpenRequest(WsserverWebSocketOpenRequestEvent e) {} ... } public class WsserverWebSocketOpenRequestEvent { public String connectionId; public String requestURI; public String hostHeader; public String originHeader; public String subProtocols; public String extensions; public String requestHeaders; public int statusCode; public String responseHeaders; }
Remarks
This event fires when a client connects. It provides an opportunity to inspect the WebSocket request and either accept or reject the connection attempt.
By default, the component will accept the connection. You do not need to set anything to accept the connection. The component will return a StatusCode of 101 to the connecting client and the request will proceed as normal. To reject a connection, set StatusCode to an HTTP error code, such as 401.
ConnectionId identifies the connecting client.
RequestURI provides the URI requested by the connecting client. This may be used to implement logic to select appropriate SubProtocols or determine if the connection should be accepted based on access restrictions to the URI.
HostHeader holds the value of the Host header sent by the client.
OriginHeader holds the value of the Origin header sent by the client.
SubProtocols holds a comma separated list of subprotocols sent by the client (if any). Set SubProtocols to the selected value from the list sent by the client. The component will return this value to the client as the subprotocol the server has selected.
Extensions provides a list of extensions supported by the client.
RequestHeaders contains the HTTP headers sent in the request by the connecting client.
StatusCode determines success or failure. The value 101 (default) indicates success. This may be set to any HTTP status code. For instance a value of 401 indicates an authorization failure.
ResponseHeaders may be set to include additional headers in the response. This is typically used when rejecting a request. For instance when StatusCode is set to 401 you might set ResponseHeaders to "WWW-Authenticate: Basic realm="Secure Realm"" to request authorization from the connecting client.
Certificate Type
This is the digital certificate being used.
Remarks
This type describes the current digital certificate. The certificate may be a public or private key. The fields are used to identify or select certificates.
Fields
EffectiveDate
String (read-only)
Default Value: ""
This is the date on which this certificate becomes valid. Before this date, it is not valid. The following example illustrates the format of an encoded date:
23-Jan-2000 15:00:00.
Encoded
String
Default Value: ""
This is the certificate (PEM/Base64 encoded). This field is used to assign a specific certificate. The Store and Subject fields also may be used to specify a certificate.
When Encoded is set, a search is initiated in the current Store for the private key of the certificate. If the key is found, Subject is updated to reflect the full subject of the selected certificate; otherwise, Subject is set to an empty string.
EncodedB
byte []
Default Value: ""
This is the certificate (PEM/Base64 encoded). This field is used to assign a specific certificate. The Store and Subject fields also may be used to specify a certificate.
When Encoded is set, a search is initiated in the current Store for the private key of the certificate. If the key is found, Subject is updated to reflect the full subject of the selected certificate; otherwise, Subject is set to an empty string.
ExpirationDate
String (read-only)
Default Value: ""
This is the date the certificate expires. After this date, the certificate will no longer be valid. The following example illustrates the format of an encoded date:
23-Jan-2001 15:00:00.
ExtendedKeyUsage
String
Default Value: ""
This is a comma-delimited list of extended key usage identifiers. These are the same as ASN.1 object identifiers (OIDs).
Fingerprint
String (read-only)
Default Value: ""
This is the hex-encoded, 16-byte MD5 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.
The following example illustrates the format: bc:2a:72:af:fe:58:17:43:7a:5f:ba:5a:7c:90:f7:02
FingerprintSHA1
String (read-only)
Default Value: ""
This is the hex-encoded, 20-byte SHA-1 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.
The following example illustrates the format: 30:7b:fa:38:65:83:ff:da:b4:4e:07:3f:17:b8:a4:ed:80:be:ff:84
FingerprintSHA256
String (read-only)
Default Value: ""
This is the hex-encoded, 32-byte SHA-256 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.
The following example illustrates the format: 6a:80:5c:33:a9:43:ea:b0:96:12:8a:64:96:30:ef:4a:8a:96:86:ce:f4:c7:be:10:24:8e:2b:60:9e:f3:59:53
Issuer
String (read-only)
Default Value: ""
This is the issuer of the certificate. This field contains a string representation of the name of the issuing authority for the certificate.
KeyPassword
String
Default Value: ""
This is the password for the certificate's private key (if any).
Some certificate stores may individually protect certificates' private keys, separate from the standard protection offered by the StorePassword. KeyPassword. This field can be used to read such password-protected private keys.
Note: this property defaults to the value of StorePassword. To clear it, you must set the property to the empty string (""). It can be set at any time, but when the private key's password is different from the store's password, then it must be set before calling PrivateKey.
PrivateKey
String (read-only)
Default Value: ""
This is the private key of the certificate (if available). The key is provided as PEM/Base64-encoded data.
Note: The PrivateKey may be available but not exportable. In this case, PrivateKey returns an empty string.
PrivateKeyAvailable
boolean (read-only)
Default Value: False
This field shows whether a PrivateKey is available for the selected certificate. If PrivateKeyAvailable is True, the certificate may be used for authentication purposes (e.g., server authentication).
PrivateKeyContainer
String (read-only)
Default Value: ""
This is the name of the PrivateKey container for the certificate (if available). This functionality is available only on Windows platforms.
PublicKey
String (read-only)
Default Value: ""
This is the public key of the certificate. The key is provided as PEM/Base64-encoded data.
PublicKeyAlgorithm
String
Default Value: ""
This field contains the textual description of the certificate's public key algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_DH") or an object identifier (OID) string representing the algorithm.
PublicKeyLength
int (read-only)
Default Value: 0
This is the length of the certificate's public key (in bits). Common values are 512, 1024, and 2048.
SerialNumber
String (read-only)
Default Value: ""
This is the serial number of the certificate encoded as a string. The number is encoded as a series of hexadecimal digits, with each pair representing a byte of the serial number.
SignatureAlgorithm
String (read-only)
Default Value: ""
The field contains the text description of the certificate's signature algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_MD5RSA") or an object identifier (OID) string representing the algorithm.
Store
String
Default Value: "MY"
This is the name of the certificate store for the client certificate.
The StoreType field denotes the type of the certificate store specified by Store. If the store is password protected, specify the password in StorePassword.
Store is used in conjunction with the Subject field to specify client certificates. If Store has a value, and Subject or Encoded is set, a search for a certificate is initiated. Please see the Subject field for details.
Designations of certificate stores are platform dependent.
The following designations are the most common User and Machine certificate stores in Windows:
MY | A certificate store holding personal certificates with their associated private keys. |
CA | Certifying authority certificates. |
ROOT | Root certificates. |
In Java, the certificate store normally is a file containing certificates and optional private keys.
When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).
StoreB
byte []
Default Value: "MY"
This is the name of the certificate store for the client certificate.
The StoreType field denotes the type of the certificate store specified by Store. If the store is password protected, specify the password in StorePassword.
Store is used in conjunction with the Subject field to specify client certificates. If Store has a value, and Subject or Encoded is set, a search for a certificate is initiated. Please see the Subject field for details.
Designations of certificate stores are platform dependent.
The following designations are the most common User and Machine certificate stores in Windows:
MY | A certificate store holding personal certificates with their associated private keys. |
CA | Certifying authority certificates. |
ROOT | Root certificates. |
In Java, the certificate store normally is a file containing certificates and optional private keys.
When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).
StorePassword
String
Default Value: ""
If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
StoreType
int
Default Value: 0
This is the type of certificate store for this certificate.
The component supports both public and private keys in a variety of formats. When the cstAuto value is used, the component will automatically determine the type. This field can take one of the following values:
0 (cstUser - default) | For Windows, this specifies that the certificate store is a certificate store owned by the current user.
Note: This store type is not available in Java. |
1 (cstMachine) | For Windows, this specifies that the certificate store is a machine store.
Note: This store type is not available in Java. |
2 (cstPFXFile) | The certificate store is the name of a PFX (PKCS#12) file containing certificates. |
3 (cstPFXBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) format. |
4 (cstJKSFile) | The certificate store is the name of a Java Key Store (JKS) file containing certificates.
Note: This store type is only available in Java. |
5 (cstJKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in Java Key Store (JKS) format.
Note: this store type is only available in Java. |
6 (cstPEMKeyFile) | The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate. |
7 (cstPEMKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a private key and an optional certificate. |
8 (cstPublicKeyFile) | The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate. |
9 (cstPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains a PEM- or DER-encoded public key certificate. |
10 (cstSSHPublicKeyBlob) | The certificate store is a string (binary or Base64-encoded) that contains an SSH-style public key. |
11 (cstP7BFile) | The certificate store is the name of a PKCS#7 file containing certificates. |
12 (cstP7BBlob) | The certificate store is a string (binary) representing a certificate store in PKCS#7 format. |
13 (cstSSHPublicKeyFile) | The certificate store is the name of a file that contains an SSH-style public key. |
14 (cstPPKFile) | The certificate store is the name of a file that contains a PPK (PuTTY Private Key). |
15 (cstPPKBlob) | The certificate store is a string (binary) that contains a PPK (PuTTY Private Key). |
16 (cstXMLFile) | The certificate store is the name of a file that contains a certificate in XML format. |
17 (cstXMLBlob) | The certificate store is a string that contains a certificate in XML format. |
18 (cstJWKFile) | The certificate store is the name of a file that contains a JWK (JSON Web Key). |
19 (cstJWKBlob) | The certificate store is a string that contains a JWK (JSON Web Key). |
21 (cstBCFKSFile) | The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store).
Note: This store type is only available in Java and .NET. |
22 (cstBCFKSBlob) | The certificate store is a string (binary or Base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format.
Note: This store type is only available in Java and .NET. |
23 (cstPKCS11) | The certificate is present on a physical security key accessible via a PKCS#11 interface.
To use a security key, the necessary data must first be collected using the CertMgr component. The ListStoreCertificates method may be called after setting CertStoreType to cstPKCS11, CertStorePassword to the PIN, and CertStore to the full path of the PKCS#11 DLL. The certificate information returned in the CertList event's CertEncoded parameter may be saved for later use. When using a certificate, pass the previously saved security key information as the Store and set StorePassword to the PIN. Code Example. SSH Authentication with Security Key:
|
99 (cstAuto) | The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically. |
Subject
String
Default Value: ""
This is the subject of the certificate used for client authentication.
This field will be populated with the full subject of the loaded certificate. When loading a certificate the subject is used to locate the certificate in the store.
If an exact match is not found, the store is searched for subjects containing the value of the property.
If a match is still not found, the property is set to an empty string, and no certificate is selected.
The special value "*" picks a random certificate in the certificate store.
The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are as follows:
Field | Meaning |
CN | Common Name. This is commonly a hostname like www.server.com. |
O | Organization |
OU | Organizational Unit |
L | Locality |
S | State |
C | Country |
E | Email Address |
If a field value contains a comma, it must be quoted.
SubjectAltNames
String (read-only)
Default Value: ""
This field contains comma-separated lists of alternative subject names for the certificate.
ThumbprintMD5
String (read-only)
Default Value: ""
This field contains the MD5 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.
ThumbprintSHA1
String (read-only)
Default Value: ""
This field contains the SHA-1 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.
ThumbprintSHA256
String (read-only)
Default Value: ""
This field contains the SHA-256 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.
Usage
String
Default Value: ""
This field contains the text description of UsageFlags.
This value will be of one or more of the following strings and will be separated by commas:
- Digital Signatures
- Key Authentication
- Key Encryption
- Data Encryption
- Key Agreement
- Certificate Signing
- Key Signing
If the provider is OpenSSL, the value is a comma-separated list of X.509 certificate extension names.
UsageFlags
int
Default Value: 0
This field contains the flags that show intended use for the certificate. The value of UsageFlags is a combination of the following flags:
0x80 | Digital Signatures |
0x40 | Key Authentication (Non-Repudiation) |
0x20 | Key Encryption |
0x10 | Data Encryption |
0x08 | Key Agreement |
0x04 | Certificate Signing |
0x02 | Key Signing |
Please see the Usage field for a text representation of UsageFlags.
This functionality currently is not available when the provider is OpenSSL.
Version
String (read-only)
Default Value: ""
This field contains the certificate's version number. The possible values are the strings "V1", "V2", and "V3".
Constructors
public Certificate();
Creates a Certificate instance whose properties can be set. This is useful for use with CERTMGR when generating new certificates.
public Certificate( certificateFile);
Opens CertificateFile and reads out the contents as an X.509 public key.
public Certificate( certificateData);
Parses CertificateData as an X.509 public key.
public Certificate( certStoreType, store, storePassword, subject);
CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a file containing the certificate store. StorePassword is the password used to protect the store. After the store has been successfully opened, the component will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X.509 certificate's subject Distinguished Name (DN).
public Certificate( certStoreType, store, storePassword, subject, configurationString);
CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a file containing the certificate store. StorePassword is the password used to protect the store. ConfigurationString is a newline separated list of name-value pairs that may be used to modify the default behavior. Possible values include "PersistPFXKey", which shows whether or not the PFX key is persisted after performing operations with the private key. This correlates to the PKCS12_NO_PERSIST_KEY CryptoAPI option. The default value is True (the key is persisted). "Thumbprint" - an MD5, SHA-1, or SHA-256 thumbprint of the certificate to load. When specified, this value is used to select the certificate in the store. This is applicable to cstUser, cstMachine, cstPublicKeyFile, and cstPFXFile store types. "UseInternalSecurityAPI" shows whether the platform (default) or the internal security API is used when performing certificate-related operations. After the store has been successfully opened, the component will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X.509 certificate's subject Distinguished Name (DN).
public Certificate( certStoreType, store, storePassword, encoded);
CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a file containing the certificate store. StorePassword is the password used to protect the store. After the store has been successfully opened, the component will load Encoded as an X.509 certificate and search the opened store for a corresponding private key.
public Certificate( certStoreType, storeBlob, storePassword, subject);
CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. StoreBlob is a string (binary- or Base64-encoded) containing the certificate data. StorePassword is the password used to protect the store. After the store has been successfully opened, the component will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X.509 certificate's subject Distinguished Name (DN).
public Certificate( certStoreType, storeBlob, storePassword, subject, configurationString);
CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. StoreBlob is a string (binary- or Base64-encoded) containing the certificate data. StorePassword is the password used to protect the store. After the store has been successfully opened, the component will attempt to find the certificate identified by Subject . This can be either a complete or a substring match of the X.509 certificate's subject Distinguished Name (DN).
public Certificate( certStoreType, storeBlob, storePassword, encoded);
CertStoreType identifies the type of certificate store to use. See StoreType for descriptions of the different certificate stores. Store is a string (binary- or Base64-encoded) containing the certificate store. StorePassword is the password used to protect the store. After the store has been successfully opened, the component will load Encoded as an X.509 certificate and search the opened store for a corresponding private key.
WSConnection Type
A currently connected client.
Remarks
This type describes the connection of a client which is currently connected to the component. You may use the different fields of this type to manage the connection.
Fields
AcceptData
boolean
Default Value: True
Setting this field to false temporarily disables data reception (and the DataIn event) for the connection. Setting this to true re-enables data reception.
Note: It is recommended to use the PauseData or ProcessData method instead of setting this property.
BytesSent
int (read-only)
Default Value: 0
This field shows how many bytes were sent after the last assignment to DataToSend. Please check DataToSend for more information.
Note: This field will always return 0 when the component is operating in the synchronous mode (i.e., the Timeout property is set to a positive value).
Connected
boolean
Default Value: False
This field is used to disconnect individual connections and/or show their status.
The Connected field may be set to false to close the connection.
Connected also shows the status of a particular connection (connected/disconnected).
ConnectionId
String (read-only)
Default Value: ""
This field contains an identifier generated by the component to identify each connection. This identifier is unique to this connection.
DataFormat
int
Default Value: 0
The format of the data being sent. When data is sent over an established connection it is either considered as text or binary data. Text data is UTF-8 encoded. Binary data has no encoding associated with it.
Possible values are:
0 (dfAutomatic - default) | The component will attempt to automatically determine the correct data format. This is suitable for most cases. |
1 (dfText) | The component will UTF-8 encode the specified data before sending. Data that has already been UTF-8 encoded may also be supplied. |
2 (dfBinary) | The component will send the data exactly as it is provided. |
9 (dfPing) | The component will send the ping with data exactly as it is provided. |
10 (dfPong) | The component will send the pong with data exactly as it is provided. |
DataToSend
String
Default Value: ""
This field contains a string of data to be sent to the remote host. Write-only property.
Assigning a string to the DataToSend makes the component send the string to the remote host. The Send method provides similar functionality.
If you are sending data to the remote host faster than it can process it, or faster than the network's bandwidth allows, the outgoing queue might fill up. When this happens, the operation fails with exception 10035: "[10035] Operation would block" (WSAEWOULDBLOCK). You can check this error, and then try to send the data again. . The BytesSent property shows how many bytes were sent (if any). If 0 bytes were sent, then you can wait for the ReadyToSend event before attempting to send data again.
Note: The ReadyToSend event is not fired when part of the data is sent successfully.
DataToSendB
byte []
Default Value: ""
This field contains a string of data to be sent to the remote host. Write-only property.
Assigning a string to the DataToSend makes the component send the string to the remote host. The Send method provides similar functionality.
If you are sending data to the remote host faster than it can process it, or faster than the network's bandwidth allows, the outgoing queue might fill up. When this happens, the operation fails with exception 10035: "[10035] Operation would block" (WSAEWOULDBLOCK). You can check this error, and then try to send the data again. . The BytesSent property shows how many bytes were sent (if any). If 0 bytes were sent, then you can wait for the ReadyToSend event before attempting to send data again.
Note: The ReadyToSend event is not fired when part of the data is sent successfully.
Host
String (read-only)
Default Value: ""
The Host header value of the connected client.
LineMode
boolean (read-only)
Default Value: False
When LineMode is false (default), the component will fire the DataIn event once for each message received from the server. When LineMode is True, the component will instead fire DataIn for each line of data received. The maximum length of a line can be controlled by the MaxLineLength configuration setting.
Note: This property is read-only, and should be set through the ChangeLineMode method.
LocalAddress
String (read-only)
Default Value: ""
This field shows the IP address of the interface through which the connection is passing.
LocalAddress is important for multihomed hosts so that it can be used to find the particular network interface through which an individual connection is going.
Origin
String (read-only)
Default Value: ""
The Origin header value of the connected client.
ReadyToSend
boolean (read-only)
Default Value: False
This indicates whether the component is ready to send data.
This field indicates that the underlying TCP/IP subsystem is ready to accept data. This is True after a client connects but will become False after a failed DataToSend.
After a failed DataToSend, the ReadyToSend event will fire and this field will be True when data can be sent again.
RemoteHost
String (read-only)
Default Value: ""
This field shows the IP address of the connected client.
The connection must be valid or an error will be fired.
If the component is configured to use a SOCKS firewall, the value assigned to this property may be preceded with an "*". If this is the case, the host name is passed to the firewall unresolved and the firewall performs the DNS resolution.
RemotePort
int (read-only)
Default Value: 0
This field shows the port of the connected client.
The connection must be valid or an error will be fired.
RequestHeaders
String (read-only)
Default Value: ""
The HTTP headers sent by the client in the initial WebSocket connection request.
RequestURI
String (read-only)
Default Value: ""
The requested URI sent by the client in the initial WebSocket connection request.
SubProtocols
String (read-only)
Default Value: ""
The subprotocols (application-level protocols layered over the WebSocket Protocol) sent by the client in the initial WebSocket connection request.
Timeout
int
Default Value: 0
This field specifies a timeout for the component.
This field defines the timeout when sending data. When UseSSL is False a value of 0 means data will be sent asynchronously and a positive value means data is sent synchronously. When UseSSL is True all data is sent synchronously regardless of the Timeout value. Please see the notes below for details.
Plaintext
If the Timeout field is set to 0, all operations return immediately, potentially failing with a WOULDBLOCK error if data cannot be sent immediately.
If Timeout is set to a positive value, data is sent in a blocking manner and the component will wait for the operation to complete before returning control. The component will handle any potential WOULDBLOCK errors internally and automatically retry the operation for a maximum of Timeout seconds.
SSL
If the Timeout field is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.
If Timeout is set to a positive value, the component will wait for the operation to complete before returning control.
Additional Notes
The component will use DoEvents to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not "freeze" and remains responsive.
If Timeout expires, and the operation is not yet complete, the component throws an exception.
Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.
The default value for the Timeout field is 0 (asynchronous for plaintext, synchronous for SSL).
UploadStream
java.io.InputStream
Default Value: ""
Setting this field uploads the data in the specified stream to the current connection. The component will automatically close this stream if CloseStreamAfterTransfer is true (default).
Note: This operation is synchronous. DefaultTimeout or Timeout must be set to a positive value before calling this method.
Constructors
public WSConnection();
Config Settings (Wsserver Component)
The component accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the component, access to these internal properties is provided through the Config method.WebSocketServer Config Settings
1000 (default) | Normal closure. |
1001 | The resource is going away. For instance the server is shutting down or a browser is navigating away from the page. |
1002 | A protocol error occurred. |
1003 | Unexpected data was received (e.g., an endpoint that only accepts text data could send this if binary data is received). |
1007 | Invalid payload data was received (e.g., an endpoint that receives non-UTF-8 data in a text message could send this). |
1008 | A generic code that indicates the endpoint received a message that violates its policy. |
1009 | A message that was too large was received. |
1010 | A required extension could not be negotiated. |
1011 | An unexpected error occurred. |
The default value is true.
When a message is fragmented, the receiving side may check the EOM parameter of the DataIn event to determine when the message is complete.
Note: When Timeout is set to 0 messages that are fragmented are always sent as individual smaller messages and EOM will always be True in the DataIn event on the receiving side.
When DefaultTimeout is set to 0 the component operates asynchronously and by default all data sent when Send is called or DataToSend is set is considered a complete message. Each packet leaving the component has the End-of-Message flag set.
To send messages which may be fragmented, set MessageLength to the length of the message (in bytes) that is being sent. When set the component will consider the next MessageLength bytes sent as part of a single message and only the last packet will set the End-of-Message flag.
This setting is helpful when data is organized into messages and the receiving side expected the End-of-Message flag to signal the end of a message.
Note: This setting is only applicable when DefaultTimeout is set to 0. When DefaultTimeout is set to a positive value the message data may be passed in its entirety to DataToSend or Send and will be automatically handled as needed by the component.
TCPServer Config Settings
When a client connects, the client's address is checked against the list defined here. If there is no match, the ConnectionRequest event fires with an Accept value set to False. If no action is taken within the ConnectionRequest event, the client will be disconnected.
When a client connects, the client's address is checked against the list defined here. If there is a match, the ConnectionRequest event fires with an Accept value set to False. If no action is taken within the ConnectionRequest event, the client will not be connected.
Note: This is applicable only to incoming SSL connections. This should be set only if there is a specific reason to do so.
Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the component is activated, the InBufferSize reverts to its defined size. The same thing will happen if you attempt to make it too large or too small.
InBufferSize is shared among incoming connections. When the property is set, the corresponding value is set for incoming connections as they are accepted. Existing connections are not modified.
Note: This value is not applicable in macOS.
Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the component is activated the OutBufferSize reverts to its defined size. The same thing will happen if you attempt to make it too large or too small.
OutBufferSize is shared among incoming connections. When the property is set, the corresponding value is set for incoming connections as they are accepted. Existing connections are not modified.
By default, this config is set to false.
0 | IPv4 Only |
1 | IPv6 Only |
2 | IPv6 and IPv4 |
SSL Config Settings
When enabled, SSL packet logs are output using the SSLStatus event, which will fire each time an SSL packet is sent or received.
Enabling this setting has no effect if SSLProvider is set to Platform.
If set to true, the component will reuse the context if and only if the following criteria are met:
- The target host name is the same.
- The system cache entry has not expired (default timeout is 10 hours).
- The application process that calls the function is the same.
- The logon session is the same.
- The instance of the component is the same.
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp .. d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
Please note that this setting contains the minimum cipher strength requested from the security library. The actual cipher strength used for the connection is shown by the SSLStatus event.
Use this setting with caution. Requesting a lower cipher strength than necessary could potentially cause serious security vulnerabilities in your application.
When the provider is OpenSSL, SSLCipherStrength is currently not supported. This functionality is instead made available through the OpenSSLCipherList config setting.
By default, the enabled cipher suites will include all available ciphers ("*").
The special value "*" means that the component will pick all of the supported cipher suites. If SSLEnabledCipherSuites is set to any other value, only the specified cipher suites will be considered.
Multiple cipher suites are separated by semicolons.
Note: This value must be set after SSLProvider is set.
Example values:
obj.config("SSLEnabledCipherSuites=*");
obj.config("SSLEnabledCipherSuites=SSL_RSA_WITH_RC4_128_SHA");
obj.config("SSLEnabledCipherSuites=SSL_RSA_WITH_RC4_128_SHA; SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA");
Possible values when SSLProvider is set to latform include:
- SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA
- SSL_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- SSL_RSA_WITH_RC4_128_SHA
- SSL_RSA_WITH_DES_CBC_SHA
- SSL_RSA_EXPORT_WITH_DES40_CBC_SHA
- SSL_DH_anon_WITH_DES_CBC_SHA
- SSL_RSA_EXPORT_WITH_RC4_40_MD5
- SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA
- SSL_DH_anon_EXPORT_WITH_RC4_40_MD5
- SSL_DHE_DSS_WITH_DES_CBC_SHA
- SSL_RSA_WITH_NULL_MD5
- SSL_DH_anon_WITH_3DES_EDE_CBC_SHA
- SSL_DHE_RSA_WITH_DES_CBC_SHA
- SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA
- SSL_RSA_WITH_NULL_SHA
- SSL_DH_anon_WITH_RC4_128_MD5
- SSL_RSA_WITH_RC4_128_MD5
- SSL_DHE_DSS_WITH_3DES_EDE_CBC_SHA
- SSL_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_ECDSA_WITH_NULL_SHA
- TLS_DH_anon_WITH_AES_128_CBC_SHA256 (Not Recommended)
- TLS_ECDH_anon_WITH_RC4_128_SHA
- TLS_DH_anon_WITH_AES_128_CBC_SHA (Not Recommended)
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- TLS_KRB5_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_KRB5_EXPORT_WITH_RC4_40_SHA
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_RC4_128_SHA
- TLS_ECDH_ECDSA_WITH_RC4_128_SHA
- TLS_ECDH_anon_WITH_NULL_SHA
- TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- TLS_RSA_WITH_NULL_SHA256
- TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA
- TLS_KRB5_WITH_RC4_128_MD5
- TLS_ECDHE_ECDSA_WITH_NULL_SHA
- TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_RSA_WITH_RC4_128_SHA
- TLS_EMPTY_RENEGOTIATION_INFO_SCSV
- TLS_KRB5_WITH_3DES_EDE_CBC_MD5
- TLS_KRB5_WITH_RC4_128_SHA
- TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_RSA_WITH_NULL_SHA
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- TLS_KRB5_WITH_DES_CBC_MD5
- TLS_KRB5_EXPORT_WITH_RC4_40_MD5
- TLS_KRB5_EXPORT_WITH_DES_CBC_40_MD5
- TLS_ECDH_anon_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_KRB5_WITH_DES_CBC_SHA
- TLS_RSA_WITH_AES_128_CBC_SHA
- TLS_KRB5_EXPORT_WITH_DES_CBC_40_SHA
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_NULL_SHA
- TLS_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_DSS_WITH_AES_128_CBC_SHA
Possible values when SSLProvider is set to Internal include:
- TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
- TLS_RSA_WITH_AES_256_GCM_SHA384
- TLS_RSA_WITH_AES_128_GCM_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
- TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
- TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
- TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
- TLS_DH_RSA_WITH_AES_128_GCM_SHA256 (Not Recommended)
- TLS_DH_RSA_WITH_AES_256_GCM_SHA384 (Not Recommended)
- TLS_DH_DSS_WITH_AES_128_GCM_SHA256 (Not Recommended)
- TLS_DH_DSS_WITH_AES_256_GCM_SHA384 (Not Recommended)
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
- TLS_RSA_WITH_AES_256_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
- TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
- TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
- TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
- TLS_DHE_RSA_WITH_AES_256_CBC_SHA
- TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
- TLS_DHE_DSS_WITH_AES_256_CBC_SHA
- TLS_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
- TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
- TLS_DHE_RSA_WITH_AES_128_CBC_SHA
- TLS_DHE_DSS_WITH_AES_128_CBC_SHA
- TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
- TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
- TLS_RSA_WITH_3DES_EDE_CBC_SHA
- TLS_RSA_WITH_DES_CBC_SHA
- TLS_DHE_RSA_WITH_DES_CBC_SHA
- TLS_DHE_DSS_WITH_DES_CBC_SHA
- TLS_RSA_WITH_RC4_128_MD5
- TLS_RSA_WITH_RC4_128_SHA
When TLS 1.3 is negotiated (see SSLEnabledProtocols) only the following cipher suites are supported:
- TLS_AES_256_GCM_SHA384
- TLS_CHACHA20_POLY1305_SHA256
- TLS_AES_128_GCM_SHA256
SSLEnabledCipherSuites is used together with SSLCipherStrength.
Not all supported protocols are enabled by default (the value of this setting is 4032). If you want more granular control over the enabled protocols, you can set this property to the binary 'OR' of one or more of the following values:
TLS1.3 | 12288 (Hex 3000) |
TLS1.2 | 3072 (Hex C00) (Default) |
TLS1.1 | 768 (Hex 300) (Default) |
TLS1 | 192 (Hex C0) (Default) |
SSL3 | 48 (Hex 30) [Platform Only] |
SSL2 | 12 (Hex 0C) [Platform Only] |
SSLEnabledProtocols - TLS 1.3 Notes
By default when TLS 1.3 is enabled the component will use the internal TLS implementation when the SSLProvider is set to Automatic for all editions.
In editions which are designed to run on Windows SSLProvider can be set to Platform to use the platform implementation instead of the internal implementation. When configured in this manner, please note that the platform provider is only supported on Windows 11 / Windows Server 2022 and up. The default internal provider is available on all platforms and is not restricted to any specific OS version.
If set to 1 (Platform provider) please be aware of the following notes:
- The platform provider is only available on Windows 11 / Windows Server 2022 and up.
- SSLEnabledCipherSuites and other similar SSL configuration settings are not supported.
- If SSLEnabledProtocols includes both TLS 1.3 and TLS 1.2 the above restrictions are still applicable even if TLS 1.2 is negotiated. Enabling TLS 1.3 with the platform provider changes the implementation used for all TLS versions.
SSLEnabledProtocols: SSL2 and SSL3 Notes:
SSL 2.0 and 3.0 are not supported by the component when the SSLProvider is set to internal. To use SSL 2.0 or SSL 3.0, the platform security API must have the protocols enabled and SSLProvider needs to be set to platform.
This setting is only applicable when SSLProvider is set to Internal.
If set to True all certificates returned by the server will be present in the Encoded parameter of the SSLServerAuthentication event. This includes the leaf certificate, any intermediate certificate, and the root certificate.
Note: When SSLProvider is set to Internal this value is automatically set to true. This is needed for proper validation when using the internal provider.
When set, the component will save the session secrets in the same format as the SSLKEYLOGFILE environment variable functionality used by most major browsers and tools such as Chrome, Firefox, and cURL. This file can then be used in tools such as Wireshark to decrypt TLS traffice for debugging purposes. When writing to this file the component will only append, it will not overwrite previous values.
Note: This setting is only applicable when SSLProvider is set to Internal.
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipher[connId]");
Note: For server components (e.g.TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherStrength[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedCipherSuite[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchange[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedKeyExchangeStrength[connId]");
Note: For server components (e.g. TCPServer) this is a per-connection setting accessed by passing the ConnectionId. For example:
server.Config("SSLNegotiatedVersion[connId]");
The value of this setting is a newline (CrLf) separated list of certificates. For instance:
-----BEGIN CERTIFICATE----- MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw ... eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w F0I1XhM+pKj7FjDr+XNj -----END CERTIFICATE----- \r \n -----BEGIN CERTIFICATE----- MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp .. d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA -----END CERTIFICATE-----
When specified the component will verify that the server certificate signature algorithm is among the values specified in this setting. If the server certificate signature algorithm is unsupported the component throws an exception.
The format of this value is a comma separated list of hash-signature combinations. For instance:
component.SSLProvider = TCPClientSSLProviders.sslpInternal;
component.Config("SSLEnabledProtocols=3072"); //TLS 1.2
component.Config("TLS12SignatureAlgorithms=sha256-rsa,sha256-dsa,sha1-rsa,sha1-dsa");
The default value for this setting is sha512-ecdsa,sha512-rsa,sha512-dsa,sha384-ecdsa,sha384-rsa,sha384-dsa,sha256-ecdsa,sha256-rsa,sha256-dsa,sha224-ecdsa,sha224-rsa,sha224-dsa,sha1-ecdsa,sha1-rsa,sha1-dsa.
In order to not restrict the server's certificate signature algorithm, specify an empty string as the value for this setting, which will cause the signature_algorithms TLS 1.2 extension to not be sent.
The default value is ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1.
When using TLS 1.2 and SSLProvider is set to Internal, the values refer to the supported groups for ECC. The following values are supported:
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1" (default)
The default value is set to balance common supported groups and the computational resources required to generate key shares. As a result only some groups are included by default in this setting.
Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used which is not present in this list it will incur an additional round trip and time to generate the key share for that group.
In most cases this setting does not need to be modified. This should only be modified if there is a specific reason to do so.
The default value is ecdhe_x25519,ecdhe_secp256r1,ecdhe_secp384r1,ffdhe_2048,ffdhe_3072
The values are ordered from most preferred to least preferred. The following values are supported:
- "ecdhe_x25519" (default)
- "ecdhe_x448"
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1"
- "ffdhe_2048" (default)
- "ffdhe_3072" (default)
- "ffdhe_4096"
- "ffdhe_6144"
- "ffdhe_8192"
- "ed25519" (default)
- "ed448" (default)
- "ecdsa_secp256r1_sha256" (default)
- "ecdsa_secp384r1_sha384" (default)
- "ecdsa_secp521r1_sha512" (default)
- "rsa_pkcs1_sha256" (default)
- "rsa_pkcs1_sha384" (default)
- "rsa_pkcs1_sha512" (default)
- "rsa_pss_sha256" (default)
- "rsa_pss_sha384" (default)
- "rsa_pss_sha512" (default)
The default value is ecdhe_x25519,ecdhe_x448,ecdhe_secp256r1,ecdhe_secp384r1,ecdhe_secp521r1,ffdhe_2048,ffdhe_3072,ffdhe_4096,ffdhe_6144,ffdhe_8192
The values are ordered from most preferred to least preferred. The following values are supported:
- "ecdhe_x25519" (default)
- "ecdhe_x448" (default)
- "ecdhe_secp256r1" (default)
- "ecdhe_secp384r1" (default)
- "ecdhe_secp521r1" (default)
- "ffdhe_2048" (default)
- "ffdhe_3072" (default)
- "ffdhe_4096" (default)
- "ffdhe_6144" (default)
- "ffdhe_8192" (default)
Base Config Settings
In some non-GUI applications, an invalid message loop may be discovered that will result in errant behavior. In these cases, setting GUIAvailable to false will ensure that the component does not attempt to process external events.
- Product: The product the license is for.
- Product Key: The key the license was generated from.
- License Source: Where the license was found (e.g., RuntimeLicense, License File).
- License Type: The type of license installed (e.g., Royalty Free, Single Server).
- Last Valid Build: The last valid build number for which the license will work.
This setting only works on these components: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.
Setting this configuration setting to true tells the component to use the internal implementation instead of using the system security libraries.
This setting is set to false by default on all platforms.
Trappable Errors (Wsserver Component)
WSServer Errors
4202 Error sending data to the connected client. |
TCPServer Errors
100 You cannot change the RemotePort at this time. A connection is in progress. | |
101 You cannot change the RemoteHost at this time. A connection is in progress. | |
102 The RemoteHost address is invalid (0.0.0.0). | |
104 TCPServer is already listening. | |
106 Cannot change LocalPort when TCPServer is listening. | |
107 Cannot change LocalHost when TCPServer is listening. | |
108 Cannot change MaxConnections when TCPServer is listening. | |
112 You cannot change MaxLineLength at this time. A connection is in progress. | |
116 RemotePort cannot be zero. Please specify a valid service port number. | |
126 Invalid ConnectionId. | |
135 Operation would block. |
SSL Errors
270 Cannot load specified security library. | |
271 Cannot open certificate store. | |
272 Cannot find specified certificate. | |
273 Cannot acquire security credentials. | |
274 Cannot find certificate chain. | |
275 Cannot verify certificate chain. | |
276 Error during handshake. | |
280 Error verifying certificate. | |
281 Could not find client certificate. | |
282 Could not find server certificate. | |
283 Error encrypting data. | |
284 Error decrypting data. |
TCP/IP Errors
10004 [10004] Interrupted system call. | |
10009 [10009] Bad file number. | |
10013 [10013] Access denied. | |
10014 [10014] Bad address. | |
10022 [10022] Invalid argument. | |
10024 [10024] Too many open files. | |
10035 [10035] Operation would block. | |
10036 [10036] Operation now in progress. | |
10037 [10037] Operation already in progress. | |
10038 [10038] Socket operation on non-socket. | |
10039 [10039] Destination address required. | |
10040 [10040] Message too long. | |
10041 [10041] Protocol wrong type for socket. | |
10042 [10042] Bad protocol option. | |
10043 [10043] Protocol not supported. | |
10044 [10044] Socket type not supported. | |
10045 [10045] Operation not supported on socket. | |
10046 [10046] Protocol family not supported. | |
10047 [10047] Address family not supported by protocol family. | |
10048 [10048] Address already in use. | |
10049 [10049] Can't assign requested address. | |
10050 [10050] Network is down. | |
10051 [10051] Network is unreachable. | |
10052 [10052] Net dropped connection or reset. | |
10053 [10053] Software caused connection abort. | |
10054 [10054] Connection reset by peer. | |
10055 [10055] No buffer space available. | |
10056 [10056] Socket is already connected. | |
10057 [10057] Socket is not connected. | |
10058 [10058] Can't send after socket shutdown. | |
10059 [10059] Too many references, can't splice. | |
10060 [10060] Connection timed out. | |
10061 [10061] Connection refused. | |
10062 [10062] Too many levels of symbolic links. | |
10063 [10063] File name too long. | |
10064 [10064] Host is down. | |
10065 [10065] No route to host. | |
10066 [10066] Directory not empty | |
10067 [10067] Too many processes. | |
10068 [10068] Too many users. | |
10069 [10069] Disc Quota Exceeded. | |
10070 [10070] Stale NFS file handle. | |
10071 [10071] Too many levels of remote in path. | |
10091 [10091] Network subsystem is unavailable. | |
10092 [10092] WINSOCK DLL Version out of range. | |
10093 [10093] Winsock not loaded yet. | |
11001 [11001] Host not found. | |
11002 [11002] Non-authoritative 'Host not found' (try again or check DNS setup). | |
11003 [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP. | |
11004 [11004] Valid name, no data record (check DNS setup). |