WSClient Class

Properties Methods Events Config Settings Errors

The WSClient class is used to establish a WebSocket connection to a server.

Syntax

WSClient

Remarks

The WSClient class provides a simple way to establish a WebSocket connection to a server. The server must support the WebSocket protocol. After the connection is established, data can be sent and received.

To begin, call the Connect method. After the connection is established, you can send and receive data in a variety of ways. To send data, you may call Send, SendFile, or SendText. Data are received through the DataIn event.

The class supports both plaintext (ws://) and Secure Sockets Layer (wss://) connections.

Property List

The following is the full list of the properties of the class with short descriptions. Click on the links for further details.


AcceptData	This property indicates whether data reception is currently enabled.
Authorization	This property includes the Authorization string to be sent to the server.
AuthScheme	This property specifies the authentication scheme to use when server authentication is required.
BytesSent	This property includes the number of bytes actually sent after a call to the SendBytes method.
CompressionMethod	This property determines whether the class will request that data in the connection be compressed.
Connected	Whether the class is connected.
Cookies	A collection of cookies.
DataFormat	This property includes the format of the data being sent.
Firewall	A set of properties related to firewall access.
FollowRedirects	Determines what happens when the server issues a redirect.
LineMode	This property indicates whether the class will fire DataIn for each line received.
LocalHost	The name of the local host or user-assigned IP interface through which connections are initiated or accepted.
LocalPort	The TCP port in the local host where the class binds.
Origin	This property includes the Origin header field value.
OtherHeaders	Other headers as determined by the user (optional).
ParsedHeaders	This property includes a collection of headers returned from the last request.
Password	This property includes a password if authentication is to be used.
Proxy	A set of properties related to proxy access.
ReadyToSend	This property indicates whether the class is ready to send data.
SSLAcceptServerCert	Instructs the class to unconditionally accept the server certificate that matches the supplied certificate.
SSLCert	The certificate to be used during Secure Sockets Layer (SSL) negotiation.
SSLProvider	The Secure Sockets Layer/Transport Layer Security (SSL/TLS) implementation to use.
SSLServerCert	The server certificate for the last established connection.
SubProtocols	This property includes optional subprotocols supported by the client.
Timeout	This property includes the timeout for the class.
TransferredHeaders	The full set of headers as received from the server.
URL	This property specifies the URL that the Connect method will connect to.
User	This property includes a user name if authentication is to be used.

Method List

The following is the full list of the methods of the class with short descriptions. Click on the links for further details.


AddCookie	Adds a cookie and the corresponding value to the outgoing request headers.
ChangeLineMode	This method controls whether the class will fire DataIn for each line received.
Config	Sets or retrieves a configuration setting.
Connect	This method connects to the host specified by the URL property.
ConnectTo	This method connects to the specified host.
Disconnect	This method disconnects from the remote host.
DoEvents	This method processes events from the internal message queue.
Interrupt	This method interrupts the current method.
Ping	This method sends a ping request to the remote host.
Reset	This method will reset the class.
ResetHeaders	This method resets all HTTP headers, cookies, LocalFile , and AttachedFile .
Send	This method sends data to the remote host.
SendBytes	This method sends data to the remote host.
SendFile	This method sends a file to the remote host.
SendText	This method sends text data to the server.

Event List

The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.


Connected	This event is fired immediately after the WebSocket handshake completes (or fails).
ConnectionStatus	This event is fired to indicate changes in connection state.
DataIn	This event is fired when data are received.
Disconnected	Fired when a connection is closed.
Error	Fired when information is available about errors during data delivery.
Header	Fired every time a header line comes in.
Log	This event fires once for each log message.
Ping	This event is fired when a ping request or response is received.
ReadyToSend	This event is fired when the class is ready to send data.
Redirect	Fired when a redirection is received from the server.
SetCookie	Fired for every cookie set by the server.
SSLServerAuthentication	Fired after the server presents its certificate to the client.
SSLStatus	Fired when secure connection progress messages are available.

Config Settings

The following is a list of config settings for the class 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.
DataInEOM	Provides the EOM for the next available chunk of data when SinglePacketMode is True.
DataInText	Provides the next available chunk of data when SinglePacketMode is True.
DisconnectStatusCode	Specifies the status code when closing a connection.
DisconnectStatusDescription	Specifies the message associated with the disconnect status code.
MaxFrameSize	Specifies the maximum size of the outgoing message in bytes before fragmentation occurs.
MaxLineLength	Determines the maximum length of a line when LineMode is True.
MessageLength	The length of the message (in bytes) when sending asynchronously.
SinglePacketMode	Determines how received data is provided.
StatusLine	The first line of the last HTTP server response.
TransferredData	The body of the last HTTP server response.
URL	The URL to which the class connected.
AcceptEncoding	Used to tell the server which types of content encodings the client supports.
AllowHTTPCompression	This property enables HTTP compression for receiving data.
AllowHTTPFallback	Whether HTTP/2 connections are permitted to fallback to HTTP/1.1.
Append	Whether to append data to LocalFile.
Authorization	The Authorization string to be sent to the server.
BytesTransferred	Contains the number of bytes transferred in the response data.
ChunkSize	Specifies the chunk size in bytes when using chunked encoding.
CompressHTTPRequest	Set to true to compress the body of a PUT or POST request.
EncodeURL	If set to True the URL will be encoded by the class.
FollowRedirects	Determines what happens when the server issues a redirect.
GetOn302Redirect	If set to True the class will perform a GET on the new location.
HTTP2HeadersWithoutIndexing	HTTP2 headers that should not update the dynamic header table with incremental indexing.
HTTPVersion	The version of HTTP used by the class.
IfModifiedSince	A date determining the maximum age of the desired document.
KeepAlive	Determines whether the HTTP connection is closed after completion of the request.
KerberosSPN	The Service Principal Name for the Kerberos Domain Controller.
LogLevel	The level of detail that is logged.
MaxRedirectAttempts	Limits the number of redirects that are followed in a request.
NegotiatedHTTPVersion	The negotiated HTTP version.
OtherHeaders	Other headers as determined by the user (optional).
ProxyAuthorization	The authorization string to be sent to the proxy server.
ProxyAuthScheme	The authorization scheme to be used for the proxy.
ProxyPassword	A password if authentication is to be used for the proxy.
ProxyPort	Port for the proxy server (default 80).
ProxyServer	Name or IP address of a proxy server (optional).
ProxyUser	A user name if authentication is to be used for the proxy.
SentHeaders	The full set of headers as sent by the client.
StatusCode	The status code of the last response from the server.
StatusLine	The first line of the last response from the server.
TransferredData	The contents of the last response from the server.
TransferredDataLimit	The maximum number of incoming bytes to be stored by the class.
TransferredHeaders	The full set of headers as received from the server.
TransferredRequest	The full request as sent by the client.
UseChunkedEncoding	Enables or Disables HTTP chunked encoding for transfers.
UseIDNs	Whether to encode hostnames to internationalized domain names.
UsePlatformHTTPClient	Whether or not to use the platform HTTP client.
UseProxyAutoConfigURL	Whether to use a Proxy auto-config file when attempting a connection.
UserAgent	Information about the user agent (browser).
ConnectionTimeout	Sets a separate timeout value for establishing a connection.
FirewallAutoDetect	Tells the class whether or not to automatically detect and use firewall system settings, if available.
FirewallHost	Name or IP address of firewall (optional).
FirewallPassword	Password to be used if authentication is to be used when connecting through the firewall.
FirewallPort	The TCP port for the FirewallHost;.
FirewallType	Determines the type of firewall to connect through.
FirewallUser	A user name if authentication is to be used connecting through a firewall.
KeepAliveInterval	The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received.
KeepAliveRetryCount	The number of keep-alive packets to be sent before the remotehost is considered disconnected.
KeepAliveTime	The inactivity time in milliseconds before a TCP keep-alive packet is sent.
Linger	When set to True, connections are terminated gracefully.
LingerTime	Time in seconds to have the connection linger.
LocalHost	The name of the local host through which connections are initiated or accepted.
LocalPort	The port in the local host where the class binds.
MaxLineLength	The maximum amount of data to accumulate when no EOL is found.
MaxTransferRate	The transfer rate limit in bytes per second.
ProxyExceptionsList	A semicolon separated list of hosts and IPs to bypass when using a proxy.
TCPKeepAlive	Determines whether or not the keep alive socket option is enabled.
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.
OpenSSLCADir	The path to a directory containing CA certificates.
OpenSSLCAFile	Name of the file containing the list of CA's trusted by your application.
OpenSSLCipherList	A string that controls the ciphers to be used by SSL.
OpenSSLPrngSeedData	The data to seed the pseudo random number generator (PRNG).
ReuseSSLSession	Determines if the SSL session is reused.
SSLCACertFilePaths	The paths to CA certificate files on Unix/Linux.
SSLCACerts	A newline separated list of CA certificates to be included when performing an SSL handshake.
SSLCipherStrength	The minimum cipher strength used for bulk encryption.
SSLClientCACerts	A newline separated list of CA certificates to use during SSL client certificate validation.
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.
SSLSecurityFlags	Flags that control certificate verification.
SSLServerCACerts	A newline separated list of CA certificates to use during SSL server certificate validation.
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.
AbsoluteTimeout	Determines whether timeouts are inactivity timeouts or absolute timeouts.
FirewallData	Used to send extra data to the firewall.
InBufferSize	The size in bytes of the incoming queue of the socket.
OutBufferSize	The size in bytes of the outgoing queue of the socket.
BuildInfo	Information about the product's build.
CodePage	The system code page used for Unicode to Multibyte translations.
LicenseInfo	Information about the current license.
MaskSensitiveData	Whether sensitive data is masked in log messages.
ProcessIdleEvents	Whether the class uses its internal event loop to process events when the main thread is idle.
SelectWaitMillis	The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process.
UseInternalSecurityAPI	Whether or not to use the system security libraries or an internal implementation.

AcceptData Property (WSClient Class)

This property indicates whether data reception is currently enabled.

Syntax

ANSI (Cross Platform)
int GetAcceptData();

Unicode (Windows)
BOOL GetAcceptData();

int ipworks_wsclient_getacceptdata(void* lpObj);

bool GetAcceptData();

Default Value

TRUE

Remarks

This property indicates whether data reception is currently enabled. When false, data reception is disabled and the DataIn event will not fire. Use the PauseData and ProcessData methods to pause and resume data reception.

This property is read-only and not available at design time.

Data Type

Boolean

Authorization Property (WSClient Class)

This property includes the Authorization string to be sent to the server.

Syntax

ANSI (Cross Platform)
char* GetAuthorization();
int SetAuthorization(const char* lpszAuthorization);

Unicode (Windows)
LPWSTR GetAuthorization();
INT SetAuthorization(LPCWSTR lpszAuthorization);

char* ipworks_wsclient_getauthorization(void* lpObj);
int ipworks_wsclient_setauthorization(void* lpObj, const char* lpszAuthorization);

QString GetAuthorization();
int SetAuthorization(QString qsAuthorization);

Default Value

Remarks

If the Authorization property contains a nonempty string, an Authorization HTTP request header is added to the request. This header conveys Authorization information to the server.

A common use for this property is to specify OAuth authorization string.

This property is provided so that the HTTP class can be extended with other security schemes in addition to the authorization schemes already implemented by the class.

The AuthScheme property defines the authentication scheme used. In the case of HTTP Basic Authentication (default), every time User and Password are set, they are Base64 encoded, and the result is put in the Authorization property in the form "Basic [encoded-user-password]".

Data Type

String

AuthScheme Property (WSClient Class)

This property specifies the authentication scheme to use when server authentication is required.

Syntax

ANSI (Cross Platform)
int GetAuthScheme();
int SetAuthScheme(int iAuthScheme);

Unicode (Windows)
INT GetAuthScheme();
INT SetAuthScheme(INT iAuthScheme);

Possible Values

AUTH_BASIC(0), 
AUTH_DIGEST(1), 
AUTH_PROPRIETARY(2), 
AUTH_NONE(3), 
AUTH_NTLM(4), 
AUTH_NEGOTIATE(5), 
AUTH_OAUTH(6)

int ipworks_wsclient_getauthscheme(void* lpObj);
int ipworks_wsclient_setauthscheme(void* lpObj, int iAuthScheme);

int GetAuthScheme();
int SetAuthScheme(int iAuthScheme);

Default Value

Remarks

This property will tell the class which type of authorization to perform when the User and Password properties are set.

This property should be set to authNone (3) when no authentication is to be performed.

By default, this property is authBasic (0), and if the User and Password properties are set, the class will attempt HTTP Basic Authentication. If AuthScheme is set to authDigest (1), authNtlm (4), or authNegotiate (5), then Digest, NTLM, or Windows Negotiate (Kerberos) authentication will be attempted instead.

If AuthScheme is set to authProprietary (2), then the authorization token must be supplied through the Authorization property.

If AuthScheme is set to authOAuth (6), then the authorization string must be supplied through the Authorization property.

Note: If you set the Authorization property and AuthScheme is not authProprietary or authOAuth, then the AuthScheme will be set automatically to authProprietary (2) by the class.

For security, changing the value of this property will cause the class to clear the values of User, Password, and Authorization.

Data Type

Integer

BytesSent Property (WSClient Class)

This property includes the number of bytes actually sent after a call to the SendBytes method.

Syntax

ANSI (Cross Platform)
int GetBytesSent();

Unicode (Windows)
INT GetBytesSent();

int ipworks_wsclient_getbytessent(void* lpObj);

int GetBytesSent();

Default Value

Remarks

This property indicates how many bytes were sent after the last call to SendBytes. Please check the SendBytes method for more information.

Note: that BytesSent will always return 0 when the class is operating in synchronous mode (i.e., the Timeout property is set to a positive value.)

This property is read-only and not available at design time.

Data Type

Integer

CompressionMethod Property (WSClient Class)

This property determines whether the class will request that data in the connection be compressed.

Syntax

ANSI (Cross Platform)
int GetCompressionMethod();
int SetCompressionMethod(int iCompressionMethod);

Unicode (Windows)
INT GetCompressionMethod();
INT SetCompressionMethod(INT iCompressionMethod);

Possible Values

CMTD_NONE(0), 
CMTD_DEFLATE(1)

int ipworks_wsclient_getcompressionmethod(void* lpObj);
int ipworks_wsclient_setcompressionmethod(void* lpObj, int iCompressionMethod);

int GetCompressionMethod();
int SetCompressionMethod(int iCompressionMethod);

Default Value

Remarks

This property determines whether data in the connection will be compressed. Possible values are as follows:


0 (cmtdNone - default)	Messages will not be compressed.
1 (cmtdDeflate)	Messages will be compressed with "permessage-deflate" compression.

Data Type

Integer

Connected Property (WSClient Class)

Whether the class is connected.

Syntax

ANSI (Cross Platform)
int GetConnected();

Unicode (Windows)
BOOL GetConnected();

int ipworks_wsclient_getconnected(void* lpObj);

bool GetConnected();

Default Value

FALSE

Remarks

This property is used to determine whether or not the class is connected to the remote host. Use the Connect and Disconnect methods to manage the connection.

This property is read-only and not available at design time.

Data Type

Boolean

Cookies Property (WSClient Class)

A collection of cookies.

Syntax

IPWorksList<IPWorksHTTPCookie>* GetCookies();
int SetCookies(IPWorksList<IPWorksHTTPCookie>* val);

int ipworks_wsclient_getcookiecount(void* lpObj);
int ipworks_wsclient_setcookiecount(void* lpObj, int iCookieCount);

char* ipworks_wsclient_getcookiedomain(void* lpObj, int cookieindex);

char* ipworks_wsclient_getcookieexpiration(void* lpObj, int cookieindex);

char* ipworks_wsclient_getcookiename(void* lpObj, int cookieindex);
int ipworks_wsclient_setcookiename(void* lpObj, int cookieindex, const char* lpszCookieName);

char* ipworks_wsclient_getcookiepath(void* lpObj, int cookieindex);

int ipworks_wsclient_getcookiesecure(void* lpObj, int cookieindex);

char* ipworks_wsclient_getcookievalue(void* lpObj, int cookieindex);
int ipworks_wsclient_setcookievalue(void* lpObj, int cookieindex, const char* lpszCookieValue);

int GetCookieCount();
int SetCookieCount(int iCookieCount);

QString GetCookieDomain(int iCookieIndex);

QString GetCookieExpiration(int iCookieIndex);

QString GetCookieName(int iCookieIndex);
int SetCookieName(int iCookieIndex, QString qsCookieName);

QString GetCookiePath(int iCookieIndex);

bool GetCookieSecure(int iCookieIndex);

QString GetCookieValue(int iCookieIndex);
int SetCookieValue(int iCookieIndex, QString qsCookieValue);

Remarks

This property contains a collection of cookies. To add cookies to outgoing HTTP requests, add cookies (of type HTTPCookie) to this collection.

To see cookies that are set by the server, use the SetCookie event, which displays the cookies and their properties as set by the server. Those cookies also are added to Cookies.

MaxHTTPCookies can be used to control the maximum number of cookies saved.

This property is not available at design time.

Data Type

IPWorksHTTPCookie

DataFormat Property (WSClient Class)

This property includes the format of the data being sent.

Syntax

ANSI (Cross Platform)
int GetDataFormat();
int SetDataFormat(int iDataFormat);

Unicode (Windows)
INT GetDataFormat();
INT SetDataFormat(INT iDataFormat);

Possible Values

DF_AUTOMATIC(0), 
DF_TEXT(1), 
DF_BINARY(2), 
DF_PING(9), 
DF_PONG(10)

int ipworks_wsclient_getdataformat(void* lpObj);
int ipworks_wsclient_setdataformat(void* lpObj, int iDataFormat);

int GetDataFormat();
int SetDataFormat(int iDataFormat);

Default Value

Remarks

When data are sent over an established connection, it is usually considered as text or binary data. Text data are UTF-8 encoded. Binary data has no encoding associated with it.

Possible values are as follows:


0 (dfAutomatic - default)	The class will attempt to automatically determine the correct data format. This is suitable for most cases.
1 (dfText)	The class will UTF-8 encode the specified data before sending. Data that already have been UTF-8 encoded may also be supplied.
2 (dfBinary)	The class will send the data exactly as provided.
9 (dfPing)	The class will send the ping with data exactly as provided.
10 (dfPong)	The class will send the pong with data exactly as provided.

Data Type

Integer

Firewall Property (WSClient Class)

A set of properties related to firewall access.

Syntax

IPWorksFirewall* GetFirewall();
int SetFirewall(IPWorksFirewall* val);

int ipworks_wsclient_getfirewallautodetect(void* lpObj);
int ipworks_wsclient_setfirewallautodetect(void* lpObj, int bFirewallAutoDetect);

int ipworks_wsclient_getfirewalltype(void* lpObj);
int ipworks_wsclient_setfirewalltype(void* lpObj, int iFirewallType);

char* ipworks_wsclient_getfirewallhost(void* lpObj);
int ipworks_wsclient_setfirewallhost(void* lpObj, const char* lpszFirewallHost);

char* ipworks_wsclient_getfirewallpassword(void* lpObj);
int ipworks_wsclient_setfirewallpassword(void* lpObj, const char* lpszFirewallPassword);

int ipworks_wsclient_getfirewallport(void* lpObj);
int ipworks_wsclient_setfirewallport(void* lpObj, int iFirewallPort);

char* ipworks_wsclient_getfirewalluser(void* lpObj);
int ipworks_wsclient_setfirewalluser(void* lpObj, const char* lpszFirewallUser);

bool GetFirewallAutoDetect();
int SetFirewallAutoDetect(bool bFirewallAutoDetect);

int GetFirewallType();
int SetFirewallType(int iFirewallType);

QString GetFirewallHost();
int SetFirewallHost(QString qsFirewallHost);

QString GetFirewallPassword();
int SetFirewallPassword(QString qsFirewallPassword);

int GetFirewallPort();
int SetFirewallPort(int iFirewallPort);

QString GetFirewallUser();
int SetFirewallUser(QString qsFirewallUser);

Remarks

This is a Firewall-type property, which contains fields describing the firewall through which the class will attempt to connect.

Data Type

IPWorksFirewall

FollowRedirects Property (WSClient Class)

Determines what happens when the server issues a redirect.

Syntax

ANSI (Cross Platform)
int GetFollowRedirects();
int SetFollowRedirects(int iFollowRedirects);

Unicode (Windows)
INT GetFollowRedirects();
INT SetFollowRedirects(INT iFollowRedirects);

Possible Values

FR_NEVER(0), 
FR_ALWAYS(1), 
FR_SAME_SCHEME(2)

int ipworks_wsclient_getfollowredirects(void* lpObj);
int ipworks_wsclient_setfollowredirects(void* lpObj, int iFollowRedirects);

int GetFollowRedirects();
int SetFollowRedirects(int iFollowRedirects);

Default Value

Remarks

This property determines what happens when the server issues a redirect. Normally, the class returns an error if the server responds with an "Object Moved" message. If this property is set to frAlways (1), the new URL for the object is retrieved automatically every time.

If this property is set to frSameScheme (2), the new URL is retrieved automatically only if the URLScheme is the same; otherwise, the class fails with an error.

Note: Following the HTTP specification, unless this property is set to frAlways (1), automatic redirects will be performed only for GET or HEAD requests. Other methods potentially could change the conditions of the initial request and create security vulnerabilities.

Furthermore, if either the new URL server or port are different from the existing one, User and Password are also reset to empty. If, however, this property is set to frAlways (1), the same credentials are used to connect to the new server.

A Redirect event is fired for every URL the product is redirected to. In the case of automatic redirections, the Redirect event is a good place to set properties related to the new connection (e.g., new authentication parameters).

The default value is frNever (0). In this case, redirects are never followed, and the class fails with an error instead.

Data Type

Integer

LineMode Property (WSClient Class)

This property indicates whether the class will fire DataIn for each line received.

Syntax

ANSI (Cross Platform)
int GetLineMode();

Unicode (Windows)
BOOL GetLineMode();

int ipworks_wsclient_getlinemode(void* lpObj);

bool GetLineMode();

Default Value

FALSE

Remarks

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 is a read-only property and should be set through the ChangeLineMode method.

This property is read-only and not available at design time.

Data Type

Boolean

LocalHost Property (WSClient Class)

The name of the local host or user-assigned IP interface through which connections are initiated or accepted.

Syntax

ANSI (Cross Platform)
char* GetLocalHost();
int SetLocalHost(const char* lpszLocalHost);

Unicode (Windows)
LPWSTR GetLocalHost();
INT SetLocalHost(LPCWSTR lpszLocalHost);

char* ipworks_wsclient_getlocalhost(void* lpObj);
int ipworks_wsclient_setlocalhost(void* lpObj, const char* lpszLocalHost);

QString GetLocalHost();
int SetLocalHost(QString qsLocalHost);

Default Value

Remarks

This 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 multihomed hosts (machines with more than one IP interface) setting LocalHost to the IP address of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface. It is recommended to provide an IP address rather than a hostname when setting this property to ensure the desired interface is used.

If the class 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 multihomed 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.

Data Type

String

LocalPort Property (WSClient Class)

The TCP port in the local host where the class binds.

Syntax

ANSI (Cross Platform)
int GetLocalPort();
int SetLocalPort(int iLocalPort);

Unicode (Windows)
INT GetLocalPort();
INT SetLocalPort(INT iLocalPort);

int ipworks_wsclient_getlocalport(void* lpObj);
int ipworks_wsclient_setlocalport(void* lpObj, int iLocalPort);

int GetLocalPort();
int SetLocalPort(int iLocalPort);

Default Value

Remarks

This property must be set before a connection is attempted. It instructs the class to bind to a specific port (or communication endpoint) in the local machine.

Setting this property to 0 (default) enables the system to choose an open port at random. The chosen port will be returned by the LocalPort property after the connection is established.

LocalPort cannot be changed once a connection is made. Any attempt to set this property when a connection is active will generate an error.

This property is useful when trying to connect to services that require a trusted port on the client side.

Data Type

Integer

Origin Property (WSClient Class)

This property includes the Origin header field value.

Syntax

ANSI (Cross Platform)
char* GetOrigin();
int SetOrigin(const char* lpszOrigin);

Unicode (Windows)
LPWSTR GetOrigin();
INT SetOrigin(LPCWSTR lpszOrigin);

char* ipworks_wsclient_getorigin(void* lpObj);
int ipworks_wsclient_setorigin(void* lpObj, const char* lpszOrigin);

QString GetOrigin();
int SetOrigin(QString qsOrigin);

Default Value

Remarks

If specified, the class will include an Origin HTTP header in the connection request with the value provided. Servers may use this value to validate requests. Servers may reject requests depending on the value provided.

A typical value that would be set is in the following form: "http://example.com".

This property is not available at design time.

Data Type

String

OtherHeaders Property (WSClient Class)

Other headers as determined by the user (optional).

Syntax

ANSI (Cross Platform)
char* GetOtherHeaders();
int SetOtherHeaders(const char* lpszOtherHeaders);

Unicode (Windows)
LPWSTR GetOtherHeaders();
INT SetOtherHeaders(LPCWSTR lpszOtherHeaders);

char* ipworks_wsclient_getotherheaders(void* lpObj);
int ipworks_wsclient_setotherheaders(void* lpObj, const char* lpszOtherHeaders);

QString GetOtherHeaders();
int SetOtherHeaders(QString qsOtherHeaders);

Default Value

Remarks

This property can be set to a string of headers to be appended to the HTTP request headers created from other properties like ContentType and From.

The headers must follow the format Header: Value as described in the HTTP specifications. Header lines should be separated by CRLF ("\r\n") .

Use this property with caution. If this property contains invalid headers, HTTP requests may fail.

This property is useful for extending the functionality of the class beyond what is provided.

This property is not available at design time.

Data Type

String

ParsedHeaders Property (WSClient Class)

This property includes a collection of headers returned from the last request.

Syntax

IPWorksList<IPWorksHeader>* GetParsedHeaders();

int ipworks_wsclient_getparsedheadercount(void* lpObj);

char* ipworks_wsclient_getparsedheaderfield(void* lpObj, int parsedheaderindex);

char* ipworks_wsclient_getparsedheadervalue(void* lpObj, int parsedheaderindex);

int GetParsedHeaderCount();

QString GetParsedHeaderField(int iParsedHeaderIndex);

QString GetParsedHeaderValue(int iParsedHeaderIndex);

Remarks

This property contains a collection of headers returned from the last request. Whenever headers are returned from the server, the headers are parsed into a collection of headers. Each Header in this collection contains information describing that header.

MaxHeaders can be used to control the maximum number of headers saved.

This property is read-only and not available at design time.

Data Type

IPWorksHeader

Password Property (WSClient Class)

This property includes a password if authentication is to be used.

Syntax

ANSI (Cross Platform)
char* GetPassword();
int SetPassword(const char* lpszPassword);

Unicode (Windows)
LPWSTR GetPassword();
INT SetPassword(LPCWSTR lpszPassword);

char* ipworks_wsclient_getpassword(void* lpObj);
int ipworks_wsclient_setpassword(void* lpObj, const char* lpszPassword);

QString GetPassword();
int SetPassword(QString qsPassword);

Default Value

Remarks

This property contains a password if authentication is to be used. If AuthScheme is set to HTTP Basic Authentication, the User and Password are Base64 encoded and the result is put in the Authorization configuration setting in the form "Basic [encoded-user-password]".

If AuthScheme is set to HTTP Digest Authentication, the User and Password properties are used to respond to the HTTP Digest Authentication challenge from the server.

If AuthScheme is set to NTLM, NTLM authentication will be attempted. If AuthScheme is set to NTLM and User and Password are empty, the class will attempt to authenticate using the current user's credentials.

Data Type

String

Proxy Property (WSClient Class)

A set of properties related to proxy access.

Syntax

IPWorksProxy* GetProxy();
int SetProxy(IPWorksProxy* val);

int ipworks_wsclient_getproxyauthscheme(void* lpObj);
int ipworks_wsclient_setproxyauthscheme(void* lpObj, int iProxyAuthScheme);

int ipworks_wsclient_getproxyautodetect(void* lpObj);
int ipworks_wsclient_setproxyautodetect(void* lpObj, int bProxyAutoDetect);

char* ipworks_wsclient_getproxypassword(void* lpObj);
int ipworks_wsclient_setproxypassword(void* lpObj, const char* lpszProxyPassword);

int ipworks_wsclient_getproxyport(void* lpObj);
int ipworks_wsclient_setproxyport(void* lpObj, int iProxyPort);

char* ipworks_wsclient_getproxyserver(void* lpObj);
int ipworks_wsclient_setproxyserver(void* lpObj, const char* lpszProxyServer);

int ipworks_wsclient_getproxyssl(void* lpObj);
int ipworks_wsclient_setproxyssl(void* lpObj, int iProxySSL);

char* ipworks_wsclient_getproxyuser(void* lpObj);
int ipworks_wsclient_setproxyuser(void* lpObj, const char* lpszProxyUser);

int GetProxyAuthScheme();
int SetProxyAuthScheme(int iProxyAuthScheme);

bool GetProxyAutoDetect();
int SetProxyAutoDetect(bool bProxyAutoDetect);

QString GetProxyPassword();
int SetProxyPassword(QString qsProxyPassword);

int GetProxyPort();
int SetProxyPort(int iProxyPort);

QString GetProxyServer();
int SetProxyServer(QString qsProxyServer);

int GetProxySSL();
int SetProxySSL(int iProxySSL);

QString GetProxyUser();
int SetProxyUser(QString qsProxyUser);

Remarks

This property contains fields describing the proxy through which the class will attempt to connect.

Data Type

IPWorksProxy

ReadyToSend Property (WSClient Class)

This property indicates whether the class is ready to send data.

Syntax

ANSI (Cross Platform)
int GetReadyToSend();

Unicode (Windows)
BOOL GetReadyToSend();

int ipworks_wsclient_getreadytosend(void* lpObj);

bool GetReadyToSend();

Default Value

FALSE

Remarks

This property indicates that the underlying Transmission Control Protocol (TCP)/IP subsystem is ready to accept data. This is True after connecting to the remote host and will become False after a failed SendBytes.

After a failed SendBytes, the ReadyToSend event will fire and this property will be True when data can be sent again.

This property is read-only and not available at design time.

Data Type

Boolean

SSLAcceptServerCert Property (WSClient Class)

Instructs the class to unconditionally accept the server certificate that matches the supplied certificate.

Syntax

IPWorksCertificate* GetSSLAcceptServerCert();
int SetSSLAcceptServerCert(IPWorksCertificate* val);

char* ipworks_wsclient_getsslacceptservercerteffectivedate(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertexpirationdate(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertextendedkeyusage(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertfingerprint(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertfingerprintsha1(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertfingerprintsha256(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertissuer(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertprivatekey(void* lpObj);

int ipworks_wsclient_getsslacceptservercertprivatekeyavailable(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertprivatekeycontainer(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertpublickey(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertpublickeyalgorithm(void* lpObj);

int ipworks_wsclient_getsslacceptservercertpublickeylength(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertserialnumber(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertsignaturealgorithm(void* lpObj);

int ipworks_wsclient_getsslacceptservercertstore(void* lpObj, char** lpSSLAcceptServerCertStore, int* lenSSLAcceptServerCertStore);
int ipworks_wsclient_setsslacceptservercertstore(void* lpObj, const char* lpSSLAcceptServerCertStore, int lenSSLAcceptServerCertStore);

char* ipworks_wsclient_getsslacceptservercertstorepassword(void* lpObj);
int ipworks_wsclient_setsslacceptservercertstorepassword(void* lpObj, const char* lpszSSLAcceptServerCertStorePassword);

int ipworks_wsclient_getsslacceptservercertstoretype(void* lpObj);
int ipworks_wsclient_setsslacceptservercertstoretype(void* lpObj, int iSSLAcceptServerCertStoreType);

char* ipworks_wsclient_getsslacceptservercertsubjectaltnames(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertthumbprintmd5(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertthumbprintsha1(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertthumbprintsha256(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertusage(void* lpObj);

int ipworks_wsclient_getsslacceptservercertusageflags(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertversion(void* lpObj);

char* ipworks_wsclient_getsslacceptservercertsubject(void* lpObj);
int ipworks_wsclient_setsslacceptservercertsubject(void* lpObj, const char* lpszSSLAcceptServerCertSubject);

int ipworks_wsclient_getsslacceptservercertencoded(void* lpObj, char** lpSSLAcceptServerCertEncoded, int* lenSSLAcceptServerCertEncoded);
int ipworks_wsclient_setsslacceptservercertencoded(void* lpObj, const char* lpSSLAcceptServerCertEncoded, int lenSSLAcceptServerCertEncoded);

QString GetSSLAcceptServerCertEffectiveDate();

QString GetSSLAcceptServerCertExpirationDate();

QString GetSSLAcceptServerCertExtendedKeyUsage();

QString GetSSLAcceptServerCertFingerprint();

QString GetSSLAcceptServerCertFingerprintSHA1();

QString GetSSLAcceptServerCertFingerprintSHA256();

QString GetSSLAcceptServerCertIssuer();

QString GetSSLAcceptServerCertPrivateKey();

bool GetSSLAcceptServerCertPrivateKeyAvailable();

QString GetSSLAcceptServerCertPrivateKeyContainer();

QString GetSSLAcceptServerCertPublicKey();

QString GetSSLAcceptServerCertPublicKeyAlgorithm();

int GetSSLAcceptServerCertPublicKeyLength();

QString GetSSLAcceptServerCertSerialNumber();

QString GetSSLAcceptServerCertSignatureAlgorithm();

QByteArray GetSSLAcceptServerCertStore();
int SetSSLAcceptServerCertStore(QByteArray qbaSSLAcceptServerCertStore);

QString GetSSLAcceptServerCertStorePassword();
int SetSSLAcceptServerCertStorePassword(QString qsSSLAcceptServerCertStorePassword);

int GetSSLAcceptServerCertStoreType();
int SetSSLAcceptServerCertStoreType(int iSSLAcceptServerCertStoreType);

QString GetSSLAcceptServerCertSubjectAltNames();

QString GetSSLAcceptServerCertThumbprintMD5();

QString GetSSLAcceptServerCertThumbprintSHA1();

QString GetSSLAcceptServerCertThumbprintSHA256();

QString GetSSLAcceptServerCertUsage();

int GetSSLAcceptServerCertUsageFlags();

QString GetSSLAcceptServerCertVersion();

QString GetSSLAcceptServerCertSubject();
int SetSSLAcceptServerCertSubject(QString qsSSLAcceptServerCertSubject);

QByteArray GetSSLAcceptServerCertEncoded();
int SetSSLAcceptServerCertEncoded(QByteArray qbaSSLAcceptServerCertEncoded);

Remarks

If it finds any issues with the certificate presented by the server, the class will normally terminate the connection with an error.

You may override this behavior by supplying a value for SSLAcceptServerCert. If the certificate supplied in SSLAcceptServerCert is the same as the certificate presented by the server, then the server certificate is accepted unconditionally, and the connection will continue normally.

Note: This functionality is provided only for cases in which you otherwise know that you are communicating with the right server. If used improperly, this property may create a security breach. Use it at your own risk.

Data Type

IPWorksCertificate

SSLCert Property (WSClient Class)

The certificate to be used during Secure Sockets Layer (SSL) negotiation.

Syntax

IPWorksCertificate* GetSSLCert();
int SetSSLCert(IPWorksCertificate* val);

char* ipworks_wsclient_getsslcerteffectivedate(void* lpObj);

char* ipworks_wsclient_getsslcertexpirationdate(void* lpObj);

char* ipworks_wsclient_getsslcertextendedkeyusage(void* lpObj);

char* ipworks_wsclient_getsslcertfingerprint(void* lpObj);

char* ipworks_wsclient_getsslcertfingerprintsha1(void* lpObj);

char* ipworks_wsclient_getsslcertfingerprintsha256(void* lpObj);

char* ipworks_wsclient_getsslcertissuer(void* lpObj);

char* ipworks_wsclient_getsslcertprivatekey(void* lpObj);

int ipworks_wsclient_getsslcertprivatekeyavailable(void* lpObj);

char* ipworks_wsclient_getsslcertprivatekeycontainer(void* lpObj);

char* ipworks_wsclient_getsslcertpublickey(void* lpObj);

char* ipworks_wsclient_getsslcertpublickeyalgorithm(void* lpObj);

int ipworks_wsclient_getsslcertpublickeylength(void* lpObj);

char* ipworks_wsclient_getsslcertserialnumber(void* lpObj);

char* ipworks_wsclient_getsslcertsignaturealgorithm(void* lpObj);

int ipworks_wsclient_getsslcertstore(void* lpObj, char** lpSSLCertStore, int* lenSSLCertStore);
int ipworks_wsclient_setsslcertstore(void* lpObj, const char* lpSSLCertStore, int lenSSLCertStore);

char* ipworks_wsclient_getsslcertstorepassword(void* lpObj);
int ipworks_wsclient_setsslcertstorepassword(void* lpObj, const char* lpszSSLCertStorePassword);

int ipworks_wsclient_getsslcertstoretype(void* lpObj);
int ipworks_wsclient_setsslcertstoretype(void* lpObj, int iSSLCertStoreType);

char* ipworks_wsclient_getsslcertsubjectaltnames(void* lpObj);

char* ipworks_wsclient_getsslcertthumbprintmd5(void* lpObj);

char* ipworks_wsclient_getsslcertthumbprintsha1(void* lpObj);

char* ipworks_wsclient_getsslcertthumbprintsha256(void* lpObj);

char* ipworks_wsclient_getsslcertusage(void* lpObj);

int ipworks_wsclient_getsslcertusageflags(void* lpObj);

char* ipworks_wsclient_getsslcertversion(void* lpObj);

char* ipworks_wsclient_getsslcertsubject(void* lpObj);
int ipworks_wsclient_setsslcertsubject(void* lpObj, const char* lpszSSLCertSubject);

int ipworks_wsclient_getsslcertencoded(void* lpObj, char** lpSSLCertEncoded, int* lenSSLCertEncoded);
int ipworks_wsclient_setsslcertencoded(void* lpObj, const char* lpSSLCertEncoded, int lenSSLCertEncoded);

QString GetSSLCertEffectiveDate();

QString GetSSLCertExpirationDate();

QString GetSSLCertExtendedKeyUsage();

QString GetSSLCertFingerprint();

QString GetSSLCertFingerprintSHA1();

QString GetSSLCertFingerprintSHA256();

QString GetSSLCertIssuer();

QString GetSSLCertPrivateKey();

bool GetSSLCertPrivateKeyAvailable();

QString GetSSLCertPrivateKeyContainer();

QString GetSSLCertPublicKey();

QString GetSSLCertPublicKeyAlgorithm();

int GetSSLCertPublicKeyLength();

QString GetSSLCertSerialNumber();

QString GetSSLCertSignatureAlgorithm();

QByteArray GetSSLCertStore();
int SetSSLCertStore(QByteArray qbaSSLCertStore);

QString GetSSLCertStorePassword();
int SetSSLCertStorePassword(QString qsSSLCertStorePassword);

int GetSSLCertStoreType();
int SetSSLCertStoreType(int iSSLCertStoreType);

QString GetSSLCertSubjectAltNames();

QString GetSSLCertThumbprintMD5();

QString GetSSLCertThumbprintSHA1();

QString GetSSLCertThumbprintSHA256();

QString GetSSLCertUsage();

int GetSSLCertUsageFlags();

QString GetSSLCertVersion();

QString GetSSLCertSubject();
int SetSSLCertSubject(QString qsSSLCertSubject);

QByteArray GetSSLCertEncoded();
int SetSSLCertEncoded(QByteArray qbaSSLCertEncoded);

Remarks

This property includes the digital certificate that the class 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.

Data Type

IPWorksCertificate

SSLProvider Property (WSClient Class)

The Secure Sockets Layer/Transport Layer Security (SSL/TLS) implementation to use.

Syntax

ANSI (Cross Platform)
int GetSSLProvider();
int SetSSLProvider(int iSSLProvider);

Unicode (Windows)
INT GetSSLProvider();
INT SetSSLProvider(INT iSSLProvider);

Possible Values

SSLP_AUTOMATIC(0), 
SSLP_PLATFORM(1), 
SSLP_INTERNAL(2)

int ipworks_wsclient_getsslprovider(void* lpObj);
int ipworks_wsclient_setsslprovider(void* lpObj, int iSSLProvider);

int GetSSLProvider();
int SetSSLProvider(int iSSLProvider);

Default Value

Remarks

This property specifies the SSL/TLS implementation to use. In most cases the default value of 0 (Automatic) is recommended and should not be changed. When set to 0 (Automatic), the class will select whether to use the platform implementation or the internal implementation depending on the operating system as well as the TLS version being used.

Possible values are as follows:


0 (sslpAutomatic - default)	Automatically selects the appropriate implementation.
1 (sslpPlatform)	Uses the platform/system implementation.
2 (sslpInternal)	Uses the internal implementation.

Additional Notes

In most cases using the default value (Automatic) is recommended. The class will select a provider depending on the current platform.

When Automatic is selected, on Windows, the class will use the platform implementation. On Linux/macOS, the class will use the internal implementation. When TLS 1.3 is enabled via SSLEnabledProtocols, the internal implementation is used on all platforms.

Data Type

Integer

SSLServerCert Property (WSClient Class)

The server certificate for the last established connection.

Syntax

IPWorksCertificate* GetSSLServerCert();

char* ipworks_wsclient_getsslservercerteffectivedate(void* lpObj);

char* ipworks_wsclient_getsslservercertexpirationdate(void* lpObj);

char* ipworks_wsclient_getsslservercertextendedkeyusage(void* lpObj);

char* ipworks_wsclient_getsslservercertfingerprint(void* lpObj);

char* ipworks_wsclient_getsslservercertfingerprintsha1(void* lpObj);

char* ipworks_wsclient_getsslservercertfingerprintsha256(void* lpObj);

char* ipworks_wsclient_getsslservercertissuer(void* lpObj);

char* ipworks_wsclient_getsslservercertprivatekey(void* lpObj);

int ipworks_wsclient_getsslservercertprivatekeyavailable(void* lpObj);

char* ipworks_wsclient_getsslservercertprivatekeycontainer(void* lpObj);

char* ipworks_wsclient_getsslservercertpublickey(void* lpObj);

char* ipworks_wsclient_getsslservercertpublickeyalgorithm(void* lpObj);

int ipworks_wsclient_getsslservercertpublickeylength(void* lpObj);

char* ipworks_wsclient_getsslservercertserialnumber(void* lpObj);

char* ipworks_wsclient_getsslservercertsignaturealgorithm(void* lpObj);

int ipworks_wsclient_getsslservercertstore(void* lpObj, char** lpSSLServerCertStore, int* lenSSLServerCertStore);

char* ipworks_wsclient_getsslservercertstorepassword(void* lpObj);

int ipworks_wsclient_getsslservercertstoretype(void* lpObj);

char* ipworks_wsclient_getsslservercertsubjectaltnames(void* lpObj);

char* ipworks_wsclient_getsslservercertthumbprintmd5(void* lpObj);

char* ipworks_wsclient_getsslservercertthumbprintsha1(void* lpObj);

char* ipworks_wsclient_getsslservercertthumbprintsha256(void* lpObj);

char* ipworks_wsclient_getsslservercertusage(void* lpObj);

int ipworks_wsclient_getsslservercertusageflags(void* lpObj);

char* ipworks_wsclient_getsslservercertversion(void* lpObj);

char* ipworks_wsclient_getsslservercertsubject(void* lpObj);

int ipworks_wsclient_getsslservercertencoded(void* lpObj, char** lpSSLServerCertEncoded, int* lenSSLServerCertEncoded);

QString GetSSLServerCertEffectiveDate();

QString GetSSLServerCertExpirationDate();

QString GetSSLServerCertExtendedKeyUsage();

QString GetSSLServerCertFingerprint();

QString GetSSLServerCertFingerprintSHA1();

QString GetSSLServerCertFingerprintSHA256();

QString GetSSLServerCertIssuer();

QString GetSSLServerCertPrivateKey();

bool GetSSLServerCertPrivateKeyAvailable();

QString GetSSLServerCertPrivateKeyContainer();

QString GetSSLServerCertPublicKey();

QString GetSSLServerCertPublicKeyAlgorithm();

int GetSSLServerCertPublicKeyLength();

QString GetSSLServerCertSerialNumber();

QString GetSSLServerCertSignatureAlgorithm();

QByteArray GetSSLServerCertStore();

QString GetSSLServerCertStorePassword();

int GetSSLServerCertStoreType();

QString GetSSLServerCertSubjectAltNames();

QString GetSSLServerCertThumbprintMD5();

QString GetSSLServerCertThumbprintSHA1();

QString GetSSLServerCertThumbprintSHA256();

QString GetSSLServerCertUsage();

int GetSSLServerCertUsageFlags();

QString GetSSLServerCertVersion();

QString GetSSLServerCertSubject();

QByteArray GetSSLServerCertEncoded();

Remarks

This property contains the server certificate for the last established connection.

SSLServerCert is reset every time a new connection is attempted.

This property is read-only.

Data Type

IPWorksCertificate

SubProtocols Property (WSClient Class)

This property includes optional subprotocols supported by the client.

Syntax

ANSI (Cross Platform)
char* GetSubProtocols();
int SetSubProtocols(const char* lpszSubProtocols);

Unicode (Windows)
LPWSTR GetSubProtocols();
INT SetSubProtocols(LPCWSTR lpszSubProtocols);

char* ipworks_wsclient_getsubprotocols(void* lpObj);
int ipworks_wsclient_setsubprotocols(void* lpObj, const char* lpszSubProtocols);

QString GetSubProtocols();
int SetSubProtocols(QString qsSubProtocols);

Default Value

Remarks

This property is optional. Set this property to one or more comma-separated subprotocols that the client supports. These should be provided in order of preference (e.g., chat, superchat).

The server will accept one subprotocol during the connection. After the connection is established, this property will be updated by the class to reflect the value the server chose. Query this property to determine the negotiated subprotocol.

This property is not available at design time.

Data Type

String

Timeout Property (WSClient Class)

This property includes the timeout for the class.

Syntax

ANSI (Cross Platform)
int GetTimeout();
int SetTimeout(int iTimeout);

Unicode (Windows)
INT GetTimeout();
INT SetTimeout(INT iTimeout);

int ipworks_wsclient_gettimeout(void* lpObj);
int ipworks_wsclient_settimeout(void* lpObj, int iTimeout);

int GetTimeout();
int SetTimeout(int iTimeout);

Default Value

Remarks

If the Timeout property 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 class will wait for the operation to complete before returning control. The class will handle any potential WOULDBLOCK errors internally and automatically retry the operation for a maximum of Timeout seconds.

The class 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 class fails with an error.

Note: By default, all timeouts are inactivity timeouts, that is, the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.

The default value for the Timeout property is 60 seconds.

Data Type

Integer

TransferredHeaders Property (WSClient Class)

The full set of headers as received from the server.

Syntax

ANSI (Cross Platform)
char* GetTransferredHeaders();

Unicode (Windows)
LPWSTR GetTransferredHeaders();

char* ipworks_wsclient_gettransferredheaders(void* lpObj);

QString GetTransferredHeaders();

Default Value

Remarks

This property returns the complete set of raw headers as received from the server.

The Header event shows the individual headers as parsed by the class.

This property is read-only and not available at design time.

Data Type

String

URL Property (WSClient Class)

This property specifies the URL that the Connect method will connect to.

Syntax

ANSI (Cross Platform)
char* GetURL();
int SetURL(const char* lpszURL);

Unicode (Windows)
LPWSTR GetURL();
INT SetURL(LPCWSTR lpszURL);

char* ipworks_wsclient_geturl(void* lpObj);
int ipworks_wsclient_seturl(void* lpObj, const char* lpszURL);

QString GetURL();
int SetURL(QString qsURL);

Default Value

Remarks

When the Connect method is called, the component will establish a WebSocket connection to the host and port specified in the URL property. The URL must be specified in the format "ws://host:[port]/[URI]" for plaintext connections or "wss://host:[port]/[URI]" for Secure Sockets Layer (SSL)-enabled connections.

Data Type

String

User Property (WSClient Class)

This property includes a user name if authentication is to be used.

Syntax

ANSI (Cross Platform)
char* GetUser();
int SetUser(const char* lpszUser);

Unicode (Windows)
LPWSTR GetUser();
INT SetUser(LPCWSTR lpszUser);

char* ipworks_wsclient_getuser(void* lpObj);
int ipworks_wsclient_setuser(void* lpObj, const char* lpszUser);

QString GetUser();
int SetUser(QString qsUser);

Default Value

Remarks

This property contains a user name if authentication is to be used. If AuthScheme is set to HTTP Basic Authentication, The User and Password are Base64 encoded, and the result is put in the Authorization property in the form "Basic [encoded-user-password]".

If AuthScheme is set to HTTP Digest Authentication, the User and Password properties are used to respond to the HTTP Digest Authentication challenge from the server.

If AuthScheme is set to NTLM, NTLM authentication will be attempted. If AuthScheme is set to NTLM, and User and Password are empty, the class will attempt to authenticate using the current user's credentials.

Data Type

String

AddCookie Method (WSClient Class)

Adds a cookie and the corresponding value to the outgoing request headers.

Syntax

ANSI (Cross Platform)
int AddCookie(const char* lpszCookieName, const char* lpszCookieValue);

Unicode (Windows)
INT AddCookie(LPCWSTR lpszCookieName, LPCWSTR lpszCookieValue);

int ipworks_wsclient_addcookie(void* lpObj, const char* lpszCookieName, const char* lpszCookieValue);

int AddCookie(const QString& qsCookieName, const QString& qsCookieValue);

Remarks

This method adds a cookie and the corresponding value to the outgoing request headers. Please refer to the Cookies property for more information on cookies and how they are managed.

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

ChangeLineMode Method (WSClient Class)

This method controls whether the class will fire DataIn for each line received.

Syntax

ANSI (Cross Platform)
int ChangeLineMode(int bLineMode);

Unicode (Windows)
INT ChangeLineMode(BOOL bLineMode);

int ipworks_wsclient_changelinemode(void* lpObj, int bLineMode);

int ChangeLineMode(bool bLineMode);

Remarks

When LineMode is set to False (default), the component will fire the DataIn event once for each message received from the server. 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 configuration setting.

Note: This method is offered as a convenience feature and has no effect on the behavior of the WebSocket protocol.

Error Handling (C++)

Config Method (WSClient Class)

Sets or retrieves a configuration setting.

Syntax

ANSI (Cross Platform)
char* Config(const char* lpszConfigurationString);

Unicode (Windows)
LPWSTR Config(LPCWSTR lpszConfigurationString);

char* ipworks_wsclient_config(void* lpObj, const char* lpszConfigurationString);

QString Config(const QString& qsConfigurationString);

Remarks

Config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, 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.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

Connect Method (WSClient Class)

This method connects to the host specified by the URL property.

Syntax

ANSI (Cross Platform)
int Connect();

Unicode (Windows)
INT Connect();

int ipworks_wsclient_connect(void* lpObj);

int Connect();

Remarks

The Connect method will establish a WebSocket connection to the host and port specified in the URL property. The URL must be specified in the format "ws://host:[port]/[URI]" for plaintext connections or "wss://host:[port]/[URI]" for Secure Socket Layer (SSL)-enabled connections.

Error Handling (C++)

ConnectTo Method (WSClient Class)

This method connects to the specified host.

Syntax

ANSI (Cross Platform)
int ConnectTo(const char* lpszURL);

Unicode (Windows)
INT ConnectTo(LPCWSTR lpszURL);

int ipworks_wsclient_connectto(void* lpObj, const char* lpszURL);

int ConnectTo(const QString& qsURL);

Remarks

The Connect method will establish a WebSocket connection to the host and port specified in the URL parameter. The URL must be specified in the format "ws://host:[port]/[URI]" for plaintext connections or "wss://host:[port]/[URI]" for Secure Sockets Layer (SSL)-enabled connections.

Error Handling (C++)

Disconnect Method (WSClient Class)

This method disconnects from the remote host.

Syntax

ANSI (Cross Platform)
int Disconnect();

Unicode (Windows)
INT Disconnect();

int ipworks_wsclient_disconnect(void* lpObj);

int Disconnect();

Remarks

This method disconnects from the remote host. Calling this method is equivalent to setting the Connected property to False.

Error Handling (C++)

DoEvents Method (WSClient Class)

This method processes events from the internal message queue.

Syntax

ANSI (Cross Platform)
int DoEvents();

Unicode (Windows)
INT DoEvents();

int ipworks_wsclient_doevents(void* lpObj);

int DoEvents();

Remarks

When DoEvents is called, the class processes any available events. If no events are available, it waits for a preset period of time, and then returns.

Error Handling (C++)

Interrupt Method (WSClient Class)

This method interrupts the current method.

Syntax

ANSI (Cross Platform)
int Interrupt();

Unicode (Windows)
INT Interrupt();

int ipworks_wsclient_interrupt(void* lpObj);

int Interrupt();

Remarks

If there is no method in progress, Interrupt simply returns, doing nothing.

Error Handling (C++)

Ping Method (WSClient Class)

This method sends a ping request to the remote host.

Syntax

ANSI (Cross Platform)
int Ping();

Unicode (Windows)
INT Ping();

int ipworks_wsclient_ping(void* lpObj);

int Ping();

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.

Error Handling (C++)

Reset Method (WSClient Class)

This method will reset the class.

Syntax

ANSI (Cross Platform)
int Reset();

Unicode (Windows)
INT Reset();

int ipworks_wsclient_reset(void* lpObj);

int Reset();

Remarks

This method will reset the class's properties to their default values.

Error Handling (C++)

ResetHeaders Method (WSClient Class)

This method resets all HTTP headers, cookies, LocalFile , and AttachedFile .

Syntax

ANSI (Cross Platform)
int ResetHeaders();

Unicode (Windows)
INT ResetHeaders();

int ipworks_wsclient_resetheaders(void* lpObj);

int ResetHeaders();

Remarks

This method resets all the HTTP headers as well as LocalFile and AttachedFile to "" (empty string). It also resets the cookie properties. Use this method before creating a new request to ensure that headers from the previous message are not carried over to the next one.

Error Handling (C++)

Send Method (WSClient Class)

This method sends data to the remote host.

Syntax

ANSI (Cross Platform)
int Send(const char* lpData, int lenData);

Unicode (Windows)
INT Send(LPCSTR lpData, INT lenData);

int ipworks_wsclient_send(void* lpObj, const char* lpData, int lenData);

int Send(QByteArray qbaData);

Remarks

This method sends data to the remote host.

Error Handling (C++)

SendBytes Method (WSClient Class)

This method sends data to the remote host.

Syntax

ANSI (Cross Platform)
int SendBytes(const char* lpData, int lenData);

Unicode (Windows)
INT SendBytes(LPCSTR lpData, INT lenData);

int ipworks_wsclient_sendbytes(void* lpObj, const char* lpData, int lenData);

int SendBytes(QByteArray qbaData);

Remarks

This method sends data to the remote host. Calling this method is equivalent to calling the SendBytes/SendText method.

Error Handling (C++)

SendFile Method (WSClient Class)

This method sends a file to the remote host.

Syntax

ANSI (Cross Platform)
int SendFile(const char* lpszFileName);

Unicode (Windows)
INT SendFile(LPCWSTR lpszFileName);

int ipworks_wsclient_sendfile(void* lpObj, const char* lpszFileName);

int SendFile(const QString& qsFileName);

Remarks

This method sends the specified file to the remote host.

This method requires Timeout be set to a positive value. This allows the class to ensure that the file is transferred completely without a WOULDBLOCK error. See Timeout for details.

Error Handling (C++)

SendText Method (WSClient Class)

This method sends text data to the server.

Syntax

ANSI (Cross Platform)
int SendText(const char* lpszText);

Unicode (Windows)
INT SendText(LPCWSTR lpszText);

int ipworks_wsclient_sendtext(void* lpObj, const char* lpszText);

int SendText(const QString& qsText);

Remarks

This method sends data as text to the server. Data sent with this method will always be treated as text data regardless of the value of DataFormat. The class will UTF-8 encode the supplied text.

Error Handling (C++)

Connected Event (WSClient Class)

This event is fired immediately after the WebSocket handshake completes (or fails).

Syntax

ANSI (Cross Platform)
virtual int FireConnected(WSClientConnectedEventParams *e);

typedef struct {
  int StatusCode;
  const char *Description;
  int reserved;
} WSClientConnectedEventParams;


Unicode (Windows)
virtual INT FireConnected(WSClientConnectedEventParams *e);

typedef struct {
  INT StatusCode;
  LPCWSTR Description;
  INT reserved;
} WSClientConnectedEventParams;

#define EID_WSCLIENT_CONNECTED 1

virtual INT IPWORKS_CALL FireConnected(INT &iStatusCode, LPSTR &lpszDescription);

class WSClientConnectedEventParams {
public:
  int StatusCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Connected(WSClientConnectedEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireConnected(WSClientConnectedEventParams *e) {...}

Remarks

The Connected event will fire after the entire WebSocket connection and handshake process finishes (or fails). This consists of three steps: (1) the initial TCP connection (along with SSL negotiation, if used), (2) the HTTP "Upgrade" request, and (3) the 101 HTTP response.

If the connection is made normally, StatusCode is 0 and Description is "OK".

If the connection fails, StatusCode has the error code returned by the TCP/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error.

Note: Please refer to the Error Codes section for more information.

ConnectionStatus Event (WSClient Class)

This event is fired to indicate changes in connection state.

Syntax

ANSI (Cross Platform)
virtual int FireConnectionStatus(WSClientConnectionStatusEventParams *e);

typedef struct {
  const char *ConnectionEvent;
  int StatusCode;
  const char *Description;
  int reserved;
} WSClientConnectionStatusEventParams;


Unicode (Windows)
virtual INT FireConnectionStatus(WSClientConnectionStatusEventParams *e);

typedef struct {
  LPCWSTR ConnectionEvent;
  INT StatusCode;
  LPCWSTR Description;
  INT reserved;
} WSClientConnectionStatusEventParams;

#define EID_WSCLIENT_CONNECTIONSTATUS 2

virtual INT IPWORKS_CALL FireConnectionStatus(LPSTR &lpszConnectionEvent, INT &iStatusCode, LPSTR &lpszDescription);

class WSClientConnectionStatusEventParams {
public:
  const QString &ConnectionEvent();

  int StatusCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void ConnectionStatus(WSClientConnectionStatusEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireConnectionStatus(WSClientConnectionStatusEventParams *e) {...}

Remarks

The ConnectionStatus event is fired when the connection state changes, such as completion of a firewall or proxy connection or completion of a security handshake.

The ConnectionEvent parameter indicates the type of connection event. Values may include the following:


	Firewall connection complete.
	SSL handshake complete (where applicable).
	WebSocket handshake complete.
	Remote host connection complete.
	Remote host disconnected.
	WebSocket connection broken.
	Secure Sockets Layer (SSL) connection broken.
	Firewall host disconnected.

StatusCode includes the error code returned by the TCP/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error.

DataIn Event (WSClient Class)

This event is fired when data are received.

Syntax

ANSI (Cross Platform)
virtual int FireDataIn(WSClientDataInEventParams *e);

typedef struct {
  int DataFormat;
  const char *Text;
  int lenText;
  int EOM;
  int EOL;
  int reserved;
} WSClientDataInEventParams;


Unicode (Windows)
virtual INT FireDataIn(WSClientDataInEventParams *e);

typedef struct {
  INT DataFormat;
  LPCSTR Text;
  INT lenText;
  BOOL EOM;
  BOOL EOL;
  INT reserved;
} WSClientDataInEventParams;

#define EID_WSCLIENT_DATAIN 3

virtual INT IPWORKS_CALL FireDataIn(INT &iDataFormat, LPSTR &lpText, INT &lenText, BOOL &bEOM, BOOL &bEOL);

class WSClientDataInEventParams {
public:
  int DataFormat();

  const QByteArray &Text();

  bool EOM();

  bool EOL();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void DataIn(WSClientDataInEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireDataIn(WSClientDataInEventParams *e) {...}

Remarks

The DataIn event provides the data received from the remote host.

The incoming data are provided through the Text parameter.

The DataFormat parameter identifies the encoding (if any) of the data. Possible value are as follows:


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 are UTF-8 encoded.
2	The data are binary and have no encoding.

The EOM parameter stands for End of Message. By default, the class will fire the DataIn event as data are 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 class 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 will be False if the DataIn event fired because MaxLineLength was reached.

Disconnected Event (WSClient Class)

Fired when a connection is closed.

Syntax

ANSI (Cross Platform)
virtual int FireDisconnected(WSClientDisconnectedEventParams *e);

typedef struct {
  int StatusCode;
  const char *Description;
  int reserved;
} WSClientDisconnectedEventParams;


Unicode (Windows)
virtual INT FireDisconnected(WSClientDisconnectedEventParams *e);

typedef struct {
  INT StatusCode;
  LPCWSTR Description;
  INT reserved;
} WSClientDisconnectedEventParams;

#define EID_WSCLIENT_DISCONNECTED 4

virtual INT IPWORKS_CALL FireDisconnected(INT &iStatusCode, LPSTR &lpszDescription);

class WSClientDisconnectedEventParams {
public:
  int StatusCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Disconnected(WSClientDisconnectedEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireDisconnected(WSClientDisconnectedEventParams *e) {...}

Remarks

If the connection is broken normally, StatusCode is 0 and Description is "OK".

If the connection is broken for any other reason, StatusCode has the error code returned by the Transmission Control Protocol (TCP/IP) subsystem. Description contains a description of this code. The value of StatusCode is equal to the value of the TCP/IP error.

Please refer to the Error Codes section for more information.

Error Event (WSClient Class)

Fired when information is available about errors during data delivery.

Syntax

ANSI (Cross Platform)
virtual int FireError(WSClientErrorEventParams *e);

typedef struct {
  int ErrorCode;
  const char *Description;
  int reserved;
} WSClientErrorEventParams;


Unicode (Windows)
virtual INT FireError(WSClientErrorEventParams *e);

typedef struct {
  INT ErrorCode;
  LPCWSTR Description;
  INT reserved;
} WSClientErrorEventParams;

#define EID_WSCLIENT_ERROR 5

virtual INT IPWORKS_CALL FireError(INT &iErrorCode, LPSTR &lpszDescription);

class WSClientErrorEventParams {
public:
  int ErrorCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Error(WSClientErrorEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireError(WSClientErrorEventParams *e) {...}

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the class fails with an error.

The ErrorCode parameter contains an error code, and the Description parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

Header Event (WSClient Class)

Fired every time a header line comes in.

Syntax

ANSI (Cross Platform)
virtual int FireHeader(WSClientHeaderEventParams *e);

typedef struct {
  const char *Field;
  const char *Value;
  int reserved;
} WSClientHeaderEventParams;


Unicode (Windows)
virtual INT FireHeader(WSClientHeaderEventParams *e);

typedef struct {
  LPCWSTR Field;
  LPCWSTR Value;
  INT reserved;
} WSClientHeaderEventParams;

#define EID_WSCLIENT_HEADER 6

virtual INT IPWORKS_CALL FireHeader(LPSTR &lpszField, LPSTR &lpszValue);

class WSClientHeaderEventParams {
public:
  const QString &Field();

  const QString &Value();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Header(WSClientHeaderEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireHeader(WSClientHeaderEventParams *e) {...}

Remarks

The Field parameter contains the name of the HTTP header (which is the same as it is delivered). The Value parameter contains the header contents.

If the header line being retrieved is a continuation header line, then the Field parameter contains "" (empty string).

Log Event (WSClient Class)

This event fires once for each log message.

Syntax

ANSI (Cross Platform)
virtual int FireLog(WSClientLogEventParams *e);

typedef struct {
  int LogLevel;
  const char *Message;
  const char *LogType;
  int reserved;
} WSClientLogEventParams;


Unicode (Windows)
virtual INT FireLog(WSClientLogEventParams *e);

typedef struct {
  INT LogLevel;
  LPCWSTR Message;
  LPCWSTR LogType;
  INT reserved;
} WSClientLogEventParams;

#define EID_WSCLIENT_LOG 7

virtual INT IPWORKS_CALL FireLog(INT &iLogLevel, LPSTR &lpszMessage, LPSTR &lpszLogType);

class WSClientLogEventParams {
public:
  int LogLevel();

  const QString &Message();

  const QString &LogType();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Log(WSClientLogEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireLog(WSClientLogEventParams *e) {...}

Remarks

This event fires once for each log message generated by the class. The verbosity is controlled by the LogLevel setting.

LogLevel indicates the level of message. Possible values are as follows:


0 (None)	No events are logged.
1 (Info - default)	Informational events are logged.
2 (Verbose)	Detailed data are logged.
3 (Debug)	Debug data are 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 as follows:

"Info"
"Error"
"Verbose"
"Debug"

Ping Event (WSClient Class)

This event is fired when a ping request or response is received.

Syntax

ANSI (Cross Platform)
virtual int FirePing(WSClientPingEventParams *e);

typedef struct {
  const char *Payload;
  int lenPayload;
  int Response;
  int reserved;
} WSClientPingEventParams;


Unicode (Windows)
virtual INT FirePing(WSClientPingEventParams *e);

typedef struct {
  LPCSTR Payload;
  INT lenPayload;
  BOOL Response;
  INT reserved;
} WSClientPingEventParams;

#define EID_WSCLIENT_PING 8

virtual INT IPWORKS_CALL FirePing(LPSTR &lpPayload, INT &lenPayload, BOOL &bResponse);

class WSClientPingEventParams {
public:
  const QByteArray &Payload();

  bool Response();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Ping(WSClientPingEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FirePing(WSClientPingEventParams *e) {...}

Remarks

This event fires when a ping request or response is received. This event is informational only. When the class 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 (WSClient Class)

This event is fired when the class is ready to send data.

Syntax

ANSI (Cross Platform)
virtual int FireReadyToSend(WSClientReadyToSendEventParams *e);

typedef struct {
  int reserved;
} WSClientReadyToSendEventParams;


Unicode (Windows)
virtual INT FireReadyToSend(WSClientReadyToSendEventParams *e);

typedef struct {
  INT reserved;
} WSClientReadyToSendEventParams;

#define EID_WSCLIENT_READYTOSEND 9

virtual INT IPWORKS_CALL FireReadyToSend();

class WSClientReadyToSendEventParams {
public:
  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void ReadyToSend(WSClientReadyToSendEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireReadyToSend(WSClientReadyToSendEventParams *e) {...}

Remarks

The ReadyToSend event indicates that the underlying Transmission Control Protocol (TCP)/IP subsystem is ready to accept data after a failed SendBytes. This event also is fired immediately after a connection to the remote host is established.

Redirect Event (WSClient Class)

Fired when a redirection is received from the server.

Syntax

ANSI (Cross Platform)
virtual int FireRedirect(WSClientRedirectEventParams *e);

typedef struct {
  const char *Location;
  int Accept;
  int reserved;
} WSClientRedirectEventParams;


Unicode (Windows)
virtual INT FireRedirect(WSClientRedirectEventParams *e);

typedef struct {
  LPCWSTR Location;
  BOOL Accept;
  INT reserved;
} WSClientRedirectEventParams;

#define EID_WSCLIENT_REDIRECT 10

virtual INT IPWORKS_CALL FireRedirect(LPSTR &lpszLocation, BOOL &bAccept);

class WSClientRedirectEventParams {
public:
  const QString &Location();

  bool Accept();
  void SetAccept(bool bAccept);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void Redirect(WSClientRedirectEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireRedirect(WSClientRedirectEventParams *e) {...}

Remarks

This event is fired in cases in which the client can decide whether or not to continue with the redirection process. The Accept parameter is always True by default, but if you do not want to follow the redirection, Accept may be set to False, in which case the class fails with an error. Location is the location to which the client is being redirected. Further control over redirection is provided in the FollowRedirects property.

SetCookie Event (WSClient Class)

Fired for every cookie set by the server.

Syntax

ANSI (Cross Platform)
virtual int FireSetCookie(WSClientSetCookieEventParams *e);

typedef struct {
  const char *Name;
  const char *Value;
  const char *Expires;
  const char *Domain;
  const char *Path;
  int Secure;
  int reserved;
} WSClientSetCookieEventParams;


Unicode (Windows)
virtual INT FireSetCookie(WSClientSetCookieEventParams *e);

typedef struct {
  LPCWSTR Name;
  LPCWSTR Value;
  LPCWSTR Expires;
  LPCWSTR Domain;
  LPCWSTR Path;
  BOOL Secure;
  INT reserved;
} WSClientSetCookieEventParams;

#define EID_WSCLIENT_SETCOOKIE 11

virtual INT IPWORKS_CALL FireSetCookie(LPSTR &lpszName, LPSTR &lpszValue, LPSTR &lpszExpires, LPSTR &lpszDomain, LPSTR &lpszPath, BOOL &bSecure);

class WSClientSetCookieEventParams {
public:
  const QString &Name();

  const QString &Value();

  const QString &Expires();

  const QString &Domain();

  const QString &Path();

  bool Secure();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void SetCookie(WSClientSetCookieEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireSetCookie(WSClientSetCookieEventParams *e) {...}

Remarks

This event is fired for every Set-Cookie: header received from the HTTP server.

The Name parameter contains the name of the cookie, with the corresponding value supplied in the Value parameter.

The Expires parameter contains an expiration time for the cookie (if provided by the server). The time format used is "Weekday, DD-Mon-YY HH:MM:SS GMT". If the server does not provide an expiration time, the Expires parameter will be an empty string. In this case, the convention is to drop the cookie at the end of the session.

The Domain parameter contains a domain name to limit the cookie to (if provided by the server). If the server does not provide a domain name, the Domain parameter will be an empty string. The convention in this case is to use the server specified in the URL (URLServer) as the cookie domain.

The Path parameter contains a path name to limit the cookie to (if provided by the server). If the server does not provide a cookie path, the Path parameter will be an empty string. The convention in this case is to use the path specified in the URL (URLPath) as the cookie path.

The Secure parameter specifies whether the cookie is secure. If the value of this parameter is True, the cookie value must be submitted only through a secure (HTTPS) connection.

SSLServerAuthentication Event (WSClient Class)

Fired after the server presents its certificate to the client.

Syntax

ANSI (Cross Platform)
virtual int FireSSLServerAuthentication(WSClientSSLServerAuthenticationEventParams *e);

typedef struct {
  const char *CertEncoded;
  int lenCertEncoded;
  const char *CertSubject;
  const char *CertIssuer;
  const char *Status;
  int Accept;
  int reserved;
} WSClientSSLServerAuthenticationEventParams;


Unicode (Windows)
virtual INT FireSSLServerAuthentication(WSClientSSLServerAuthenticationEventParams *e);

typedef struct {
  LPCSTR CertEncoded;
  INT lenCertEncoded;
  LPCWSTR CertSubject;
  LPCWSTR CertIssuer;
  LPCWSTR Status;
  BOOL Accept;
  INT reserved;
} WSClientSSLServerAuthenticationEventParams;

#define EID_WSCLIENT_SSLSERVERAUTHENTICATION 12

virtual INT IPWORKS_CALL FireSSLServerAuthentication(LPSTR &lpCertEncoded, INT &lenCertEncoded, LPSTR &lpszCertSubject, LPSTR &lpszCertIssuer, LPSTR &lpszStatus, BOOL &bAccept);

class WSClientSSLServerAuthenticationEventParams {
public:
  const QByteArray &CertEncoded();

  const QString &CertSubject();

  const QString &CertIssuer();

  const QString &Status();

  bool Accept();
  void SetAccept(bool bAccept);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void SSLServerAuthentication(WSClientSSLServerAuthenticationEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireSSLServerAuthentication(WSClientSSLServerAuthenticationEventParams *e) {...}

Remarks

During this event, the client can decide whether or not to continue with the connection process. The Accept parameter is a recommendation on whether to continue or 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). If it is decided to continue, you can override and accept the certificate by setting the Accept parameter to True.

SSLStatus Event (WSClient Class)

Fired when secure connection progress messages are available.

Syntax

ANSI (Cross Platform)
virtual int FireSSLStatus(WSClientSSLStatusEventParams *e);

typedef struct {
  const char *Message;
  int reserved;
} WSClientSSLStatusEventParams;


Unicode (Windows)
virtual INT FireSSLStatus(WSClientSSLStatusEventParams *e);

typedef struct {
  LPCWSTR Message;
  INT reserved;
} WSClientSSLStatusEventParams;

#define EID_WSCLIENT_SSLSTATUS 13

virtual INT IPWORKS_CALL FireSSLStatus(LPSTR &lpszMessage);

class WSClientSSLStatusEventParams {
public:
  const QString &Message();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};

// To handle, connect one or more slots to this signal.
void SSLStatus(WSClientSSLStatusEventParams *e);

// Or, subclass WSClient and override this emitter function.
virtual int FireSSLStatus(WSClientSSLStatusEventParams *e) {...}

Remarks

The event is fired for informational and logging purposes only. This event tracks the progress of the connection.

Certificate Type

This is the digital certificate being used.

Syntax

IPWorksCertificate (declared in ipworks.h)

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.

The following fields are available:

Fields

EffectiveDate
char* (read-only)
Default Value: ""

The date on which this certificate becomes valid. Before this date, it is not valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date:

23-Jan-2000 15:00:00.

ExpirationDate
char* (read-only)
Default Value: ""

The date on which the certificate expires. After this date, the certificate will no longer be valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date:

23-Jan-2001 15:00:00.

ExtendedKeyUsage
char* (read-only)
Default Value: ""

A comma-delimited list of extended key usage identifiers. These are the same as ASN.1 object identifiers (OIDs).

Fingerprint
char* (read-only)
Default Value: ""

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
char* (read-only)
Default Value: ""

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
char* (read-only)
Default Value: ""

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
char* (read-only)
Default Value: ""

The issuer of the certificate. This field contains a string representation of the name of the issuing authority for the certificate.

PrivateKey
char* (read-only)
Default Value: ""

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
int (read-only)
Default Value: FALSE

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
char* (read-only)
Default Value: ""

The name of the PrivateKey container for the certificate (if available). This functionality is available only on Windows platforms.

PublicKey
char* (read-only)
Default Value: ""

The public key of the certificate. The key is provided as PEM/Base64-encoded data.

PublicKeyAlgorithm
char* (read-only)
Default Value: ""

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

The length of the certificate's public key (in bits). Common values are 512, 1024, and 2048.

SerialNumber
char* (read-only)
Default Value: ""

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
char* (read-only)
Default Value: ""

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
char*
Default Value: "MY"

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.

When the certificate store type is cstPFXFile, this property must be set to the name of the file. When the type is cstPFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).

StorePassword
char*
Default Value: ""

If the type of certificate store requires a password, this field is used to specify the password needed to open the certificate store.

StoreType
int
Default Value: 0

The type of certificate store for this certificate.

The class supports both public and private keys in a variety of formats. When the cstAuto value is used, the class 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 class. 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: `certmgr.CertStoreType = CertStoreTypes.cstPKCS11; certmgr.OnCertList += (s, e) => { secKeyBlob = e.CertEncoded; }; certmgr.CertStore = @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll"; certmgr.CertStorePassword = "123456"; //PIN certmgr.ListStoreCertificates(); sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, secKeyBlob, "123456", "*"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22);`
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.

SubjectAltNames
char* (read-only)
Default Value: ""

Comma-separated lists of alternative subject names for the certificate.

ThumbprintMD5
char* (read-only)
Default Value: ""

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
char* (read-only)
Default Value: ""

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
char* (read-only)
Default Value: ""

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
char* (read-only)
Default Value: ""

The text description of UsageFlags.

This value will be one or more of the following strings and will be separated by commas:

Digital Signature
Non-Repudiation
Key Encipherment
Data Encipherment
Key Agreement
Certificate Signing
CRL Signing
Encipher Only

If the provider is OpenSSL, the value is a comma-separated list of X.509 certificate extension names.

UsageFlags
int (read-only)
Default Value: 0

The flags that show intended use for the certificate. The value of UsageFlags is a combination of the following flags:


0x80	Digital Signature
0x40	Non-Repudiation
0x20	Key Encipherment
0x10	Data Encipherment
0x08	Key Agreement
0x04	Certificate Signing
0x02	CRL Signing
0x01	Encipher Only

Please see the Usage field for a text representation of UsageFlags.

This functionality currently is not available when the provider is OpenSSL.

Version
char* (read-only)
Default Value: ""

The certificate's version number. The possible values are the strings "V1", "V2", and "V3".

Subject
char*
Default Value: ""

The subject of the certificate used for client authentication.

This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject.

If a matching certificate is found, the field is set to the full subject of the matching certificate.

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.

Encoded
char*
Default Value: ""

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.

Constructors

Certificate()

Creates a instance whose properties can be set. This is useful for use with when generating new certificates.

Certificate(const char* lpEncoded, int lenEncoded)

Parses Encoded as an X.509 public key.

Certificate(int iStoreType, const char* lpStore, int lenStore, const char* lpszStorePassword, const char* lpszSubject)

StoreType identifies the type of certificate store to use. See for descriptions of the different certificate stores. Store is a byte array 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). The Subject parameter can also take an MD5, SHA-1, or SHA-256 thumbprint of the certificate to load in a "Thumbprint=value" format.

Firewall Type

The firewall the component will connect through.

Syntax

IPWorksFirewall (declared in ipworks.h)

Remarks

When connecting through a firewall, this type is used to specify different properties of the firewall, such as the firewall Host and the FirewallType.

The following fields are available:

Fields

AutoDetect
int
Default Value: FALSE

Whether to automatically detect and use firewall system settings, if available.

FirewallType
int
Default Value: 0

The type of firewall to connect through. The applicable values are as follows:


fwNone (0)	No firewall (default setting).
fwTunnel (1)	Connect through a tunneling proxy. Port is set to 80.
fwSOCKS4 (2)	Connect through a SOCKS4 Proxy. Port is set to 1080.
fwSOCKS5 (3)	Connect through a SOCKS5 Proxy. Port is set to 1080.
fwSOCKS4A (10)	Connect through a SOCKS4A Proxy. Port is set to 1080.

Host
char*
Default Value: ""

The name or IP address of the firewall (optional). If a Host is given, the requested connections will be authenticated through the specified firewall when connecting.

If this field is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, this field is set to the corresponding address. If the search is not successful, the class fails with an error.

Password
char*
Default Value: ""

A password if authentication is to be used when connecting through the firewall. If Host is specified, the User and Password fields are used to connect and authenticate to the given firewall. If the authentication fails, the class fails with an error.

Port
int
Default Value: 0

The Transmission Control Protocol (TCP) port for the firewall Host. See the description of the Host field for details.

Note: This field is set automatically when FirewallType is set to a valid value. See the description of the FirewallType field for details.

User
char*
Default Value: ""

A username if authentication is to be used when connecting through a firewall. If Host is specified, this field and the Password field are used to connect and authenticate to the given Firewall. If the authentication fails, the class fails with an error.

Constructors

Firewall()

Header Type

This is an HTTP header as it is received from the server.

Syntax

IPWorksHeader (declared in ipworks.h)

Remarks

When a header is received through a Header event, it is parsed into a Header type. This type contains a Field, and its corresponding Value.

The following fields are available:

Field

Value

Fields

Field
char*
Default Value: ""

This field contains the name of the HTTP Header (this is the same case as it is delivered).

Value
char*
Default Value: ""

This field contains the Header contents.

Constructors

Header()

Header(const char* lpszField, const char* lpszValue)

HTTPCookie Type

An HTTP cookie can be either sent to or received from the server.

Syntax

IPWorksHTTPCookie (declared in ipworks.h)

Remarks

An HTTP cookie can store the cookies that are to be sent to the server. It also may store the cookies sent by the server.

Cookies that are to be sent to the server must have the Name and Value fields supplied before submitting the URL. When the SetCookie event is fired, however, all of the fields of an HTTPCookie are filled out accordingly.

The following fields are available:

Fields

Domain
char* (read-only)
Default Value: ""

The domain of a received cookie. This field contains a domain name to limit the cookie to (if provided by the server). If the server does not provide a domain name, this field will contain an empty string. The convention in this case is to use the server name specified by URLServer as the cookie domain.

Expiration
char* (read-only)
Default Value: ""

An expiration time for the cookie (if provided by the server). The time format used is "Weekday, DD-Mon-YY HH:MM:SS GMT". If the server does not provide an expiration time, this field will contain an empty string. The convention is to drop the cookie at the end of the session.

Name
char*
Default Value: ""

The name of the cookie.

This field, along with Value, stores the cookie that is to be sent to the server. The SetCookie event displays the cookies sent by the server and their properties.

Path
char* (read-only)
Default Value: ""

A path name to limit the cookie to (if provided by the server). If the server does not provide a cookie path, the path field will be an empty string. The convention in this case is to use the path specified by URLPath as the cookie path.

Secure
int (read-only)
Default Value: FALSE

The security flag of the received cookie. This field specifies whether the cookie is secure. If the value of this field is True, the cookie value must be submitted only through a secure (HTTPS) connection.

Value
char*
Default Value: ""

The value of the cookie. A corresponding value is associated with the cookie specified by Name. This property holds that value.

The SetCookie event provides the cookies set by the server.

Constructors

HTTPCookie()

HTTPCookie(const char* lpszName, const char* lpszValue)

Proxy Type

The proxy the component will connect to.

Syntax

IPWorksProxy (declared in ipworks.h)

Remarks

When connecting through a proxy, this type is used to specify different properties of the proxy, such as the Server and the AuthScheme.

The following fields are available:

Fields

AuthScheme
int
Default Value: 0

The type of authorization to perform when connecting to the proxy. This is used only when the User and Password fields are set.

AuthScheme should be set to authNone (3) when no authentication is expected.

By default, AuthScheme is authBasic (0), and if the User and Password fields are set, the class will attempt basic authentication.

If AuthScheme is set to authDigest (1), digest authentication will be attempted instead.

If AuthScheme is set to authProprietary (2), then the authorization token will not be generated by the class. Look at the configuration file for the class being used to find more information about manually setting this token.

If AuthScheme is set to authNtlm (4), NTLM authentication will be used.

For security reasons, setting this field will clear the values of User and Password.

AutoDetect
int
Default Value: FALSE

Whether to automatically detect and use proxy system settings, if available. The default value is false.

Password
char*
Default Value: ""

A password if authentication is to be used for the proxy.

If AuthScheme is set to Basic Authentication, the User and Password fields are Base64 encoded and the proxy authentication token will be generated in the form Basic [encoded-user-password].

If AuthScheme is set to Digest Authentication, the User and Password fields are used to respond to the Digest Authentication challenge from the server.

If AuthScheme is set to NTLM Authentication, the User and Password fields are used to authenticate through NTLM negotiation.

Port
int
Default Value: 80

The Transmission Control Protocol (TCP) port for the proxy Server (default 80). See the description of the Server field for details.

Server
char*
Default Value: ""

If a proxy Server is given, then the HTTP request is sent to the proxy instead of the server otherwise specified.

If the Server field is set to a domain name, a DNS request is initiated. Upon successful termination of the request, the Server field is set to the corresponding address. If the search is not successful, an error is returned.

SSL
int
Default Value: 0

When to use a Secure Sockets Layer (SSL) for the connection to the proxy. The applicable values are as follows:


psAutomatic (0)	Default setting. If the URL is an `https` URL, the class will use the `psTunnel` option. If the URL is an `http` URL, the class will use the `psNever` option.
psAlways (1)	The connection is always SSL-enabled.
psNever (2)	The connection is not SSL-enabled.
psTunnel (3)	The connection is made through a tunneling (HTTP) proxy.

User
char*
Default Value: ""

A username if authentication is to be used for the proxy.

If AuthScheme is set to Basic Authentication, the User and Password fields are Base64 encoded and the proxy authentication token will be generated in the form Basic [encoded-user-password].

If AuthScheme is set to Digest Authentication, the User and Password fields are used to respond to the Digest Authentication challenge from the server.

If AuthScheme is set to NTLM Authentication, the User and Password fields are used to authenticate through NTLM negotiation.

Constructors

Proxy()

Proxy(const char* lpszServer, int iPort)

Proxy(const char* lpszServer, int iPort, const char* lpszUser, const char* lpszPassword)

IPWorksList Type

Syntax

IPWorksList<T> (declared in ipworks.h)

Remarks

IPWorksList is a generic class that is used to hold a collection of objects of type T, where T is one of the custom types supported by the WSClient class.

Methods

GetCount	This method returns the current size of the collection. int GetCount() {}
SetCount	This method sets the size of the collection. This method returns `0` if setting the size was successful; or `-1` if the collection is `ReadOnly`. When adding additional objects to a collection call this method to specify the new size. Increasing the size of the collection preserves existing objects in the collection. int SetCount(int count) {}
Get	This method gets the item at the specified position. The `index` parameter specifies the index of the item in the collection. This method returns `NULL` if an invalid `index` is specified. T* Get(int index) {}
Set	This method sets the item at the specified position. The `index` parameter specifies the index of the item in the collection that is being set. This method returns `-1` if an invalid `index` is specified. Note: Objects created using the `new` operator must be freed using the `delete` operator; they will not be automatically freed by the class. T* Set(int index, T* value) {}

Config Settings (WSClient Class)

The class 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 class, access to these internal properties is provided through the Config method.

WebSocket Config Settings

BufferMessage: Indicates whether or not the entire message is buffered before firing the DataIn event.

When receiving large messages the DataIn, this event may fire multiple times to provide data as it is received in each message fragment. When BufferMessage is set to True, the class will internally buffer the message as it is received until it is complete before firing the DataIn event. The default value is False.

DataInEOM: Provides the EOM for the next available chunk of data when SinglePacketMode is True.

This configuration setting is applicable only when SinglePacketMode is True. By default, data will be available via DataInText as data are received. Larger messages will be fragmented and will cause the data to not be available all at once. When this setting is True, this indicates the fragment available via DataInText 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.

DataInText: Provides the next available chunk of data when SinglePacketMode is True.

This configuration setting is applicable only when SinglePacketMode is True. This setting will return any available data. If no data are available, it will return an empty string.

DisconnectStatusCode: Specifies the status code when closing a connection.

When the Disconnect method is called, the class will send the status code specified here. By default, the value is 1,000, which indicates a normal closure. Any other value represents an error condition. You may set any value you wish, but the protocol defines the following common values.


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 were received (e.g., an endpoint that accepts only text data could send this if binary data are received).
1007	Invalid payload data were 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.

DisconnectStatusDescription: Specifies the message associated with the disconnect status code.

This configuration setting may be used to provide a textual description of the status code sent when closing the connection. This configuration setting works in conjunction with DisconnectStatusCode. For any of the standard codes listed in DisconnectStatusCode, the class will use a default description that may be overridden with this setting. For any nonstandard codes that are not listed, this setting should be set or no description will be sent.

MaxFrameSize: Specifies the maximum size of the outgoing message in bytes before fragmentation occurs.

This configuration setting specifies the maximum size of the outgoing message in bytes before fragmentation will occur. When a message that is larger than MaxFrameSize is sent, it will be broken into fragments with the maximum size specified here. The default value is 131072 (128K).

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.

MaxLineLength: Determines the maximum length of a line when LineMode is True.

When LineMode is True, setting this will cause the component to fire the DataIn event when the length of the received data reaches the value of this setting. When the DataIn event fires, the EOL parameter will be False if this setting caused the event to fire and will be True if an EOL caused the event to fire.

MessageLength: The length of the message (in bytes) when sending asynchronously.

This configuration setting specifies the length of messages being sent when operating asynchronously.

When Timeout is set to 0, the class operates asynchronously and by default all data sent when Send is called is considered a complete message. Each packet leaving the class has the End-of-Message flag set.

To send messages that may be fragmented, set MessageLength to the length of the message (in bytes) that is being sent. When set, the class 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 are organized into messages and the receiving side expected the End-of-Message flag to signal the end of a message.

Note: This configuration setting is applicable only when Timeout is set to 0. When Timeout is set to a positive value, the message data may be passed in its entirety to Send and will be automatically handled as needed by the class.

SinglePacketMode: Determines how received data is provided.

When set to True, the class will accumulate data and provide it through the DataInText setting. This is useful in environments in which events cannot be used. For instance: wsclient.Config("SinglePacketMode=true") Dim receivedData receivedData = "" Dim eom As Boolean eom = False wsclient.SendText(dataToSend) while not eom eom = wsclient.Config("DataInEOM") receivedData = receivedData & WSClient1.Config("DataInText") wsclient.DoEvents() wend Response.Write("Received: " & receivedData)

The default value is False.

StatusLine: The first line of the last HTTP server response.

This configuration setting contains the first line of the last HTTP response. This value can be used for diagnostic purposes

The HTTP protocol specifies the structure of the StatusLine as: [HTTP version] [Result Code] [Description].

TransferredData: The body of the last HTTP server response.

This configuration setting contains the body of the last HTTP response. This value can be used for diagnostic purposes

URL: The URL to which the class connected.

This configuration setting contains the URL to which the class connected.

HTTP Config Settings

AcceptEncoding: Used to tell the server which types of content encodings the client supports.

When AllowHTTPCompression is True, the class adds an Accept-Encoding header to the request being sent to the server. By default, this header's value is "gzip, deflate". This configuration setting allows you to change the value of the Accept-Encoding header. Note: The class only supports gzip and deflate decompression algorithms.

AllowHTTPCompression: This property enables HTTP compression for receiving data.

This configuration setting enables HTTP compression for receiving data. When set to True (default), the class will accept compressed data. It then will uncompress the data it has received. The class will handle data compressed by both gzip and deflate compression algorithms.

When True, the class adds an Accept-Encoding header to the outgoing request. The value for this header can be controlled by the AcceptEncoding configuration setting. The default value for this header is "gzip, deflate".

The default value is True.

AllowHTTPFallback: Whether HTTP/2 connections are permitted to fallback to HTTP/1.1.

This configuration setting controls whether HTTP/2 connections are permitted to fall back to HTTP/1.1 when the server does not support HTTP/2. This setting is applicable only when HTTPVersion is set to "2.0".

If set to True (default), the class will automatically use HTTP/1.1 if the server does not support HTTP/2. If set to False, the class fails with an error if the server does not support HTTP/2.

The default value is True.

Append: Whether to append data to LocalFile.

This configuration setting determines whether data will be appended when writing to LocalFile. When set to True, downloaded data will be appended to LocalFile. This may be used in conjunction with Range to resume a failed download. This is applicable only when LocalFile is set. The default value is False.

Authorization: The Authorization string to be sent to the server.

If the Authorization property contains a nonempty string, an Authorization HTTP request header is added to the request. This header conveys Authorization information to the server.

This property is provided so that the HTTP class can be extended with other security schemes in addition to the authorization schemes already implemented by the class.

BytesTransferred: Contains the number of bytes transferred in the response data.

This configuration setting returns the raw number of bytes from the HTTP response data, before the component processes the data, whether it is chunked or compressed. This returns the same value as the Transfer event, by BytesTransferred.

ChunkSize: Specifies the chunk size in bytes when using chunked encoding.

This is applicable only when UseChunkedEncoding is True. This setting specifies the chunk size in bytes to be used when posting data. The default value is 16384.

CompressHTTPRequest: Set to true to compress the body of a PUT or POST request.

If set to True, the body of a PUT or POST request will be compressed into gzip format before sending the request. The "Content-Encoding" header is also added to the outgoing request.

The default value is False.

EncodeURL: If set to True the URL will be encoded by the class.

If set to True, the URL passed to the class will be URL encoded. The default value is False.

FollowRedirects: Determines what happens when the server issues a redirect.

This option determines what happens when the server issues a redirect. Normally, the class returns an error if the server responds with an "Object Moved" message. If this property is set to 1 (always), the new URL for the object is retrieved automatically every time.

If this property is set to 2 (Same Scheme), the new URL is retrieved automatically only if the URL Scheme is the same; otherwise, the class fails with an error.

Note: Following the HTTP specification, unless this option is set to 1 (Always), automatic redirects will be performed only for GET or HEAD requests. Other methods potentially could change the conditions of the initial request and create security vulnerabilities.

Furthermore, if either the new URL server or port are different from the existing one, User and Password are also reset to empty, unless this property is set to 1 (Always), in which case the same credentials are used to connect to the new server.

The default value is 0 (Never). In this case, redirects are never followed, and the class fails with an error instead.

Following are the valid options:

0 - Never
1 - Always
2 - Same Scheme

GetOn302Redirect: If set to True the class will perform a GET on the new location.

The default value is False. If set to True, the class will perform a GET on the new location. Otherwise, it will use the same HTTP method again.

HTTP2HeadersWithoutIndexing: HTTP2 headers that should not update the dynamic header table with incremental indexing.

HTTP/2 servers maintain a dynamic table of headers and values seen over the course of a connection. Typically, these headers are inserted into the table through incremental indexing (also known as HPACK, defined in RFC 7541). To tell the component not to use incremental indexing for certain headers, and thus not update the dynamic table, set this configuration option to a comma-delimited list of the header names.

HTTPVersion: The version of HTTP used by the class.

This property specifies the HTTP version used by the class. Possible values are as follows:

"1.0"
"1.1" (default)
"2.0"
"3.0"

When using HTTP/2 ("2.0"), additional restrictions apply. Please see the following notes for details.

HTTP/2 Notes

When using HTTP/2, a secure Secure Sockets Layer/Transport Layer Security (TLS/SSL) connection is required. Attempting to use a plaintext URL with HTTP/2 will result in an error.

If the server does not support HTTP/2, the class will automatically use HTTP/1.1 instead. This is done to provide compatibility without the need for any additional settings. To see which version was used, check NegotiatedHTTPVersion after calling a method. The AllowHTTPFallback setting controls whether this behavior is allowed (default) or disallowed.

HTTP/3 Notes

HTTP/3 is supported only in .NET and Java.

When using HTTP/3, a secure (TLS/SSL) connection is required. Attempting to use a plaintext URL with HTTP/3 will result in an error.

IfModifiedSince: A date determining the maximum age of the desired document.

If this setting contains a nonempty string, an If-Modified-Since HTTP header is added to the request. The value of this header is used to make the HTTP request conditional: if the requested documented has not been modified since the time specified in the field, a copy of the document will not be returned from the server; instead, a 304 (not modified) response will be returned by the server and the component throws an exception

The format of the date value for IfModifiedSince is detailed in the HTTP specs. For example: Sat, 29 Oct 2017 19:43:31 GMT.

KeepAlive: Determines whether the HTTP connection is closed after completion of the request.

If true, the component will not send the Connection: Close header. The absence of the Connection header indicates to the server that HTTP persistent connections should be used if supported. Note: Not all servers support persistent connections. If false, the connection will be closed immediately after the server response is received.

The default value for KeepAlive is false.

KerberosSPN: The Service Principal Name for the Kerberos Domain Controller.

If the Service Principal Name on the Kerberos Domain Controller is not the same as the URL that you are authenticating to, the Service Principal Name should be set here.

LogLevel: The level of detail that is logged.

This configuration setting controls the level of detail that is logged through the Log event. Possible values are as follows:


0 (None)	No events are logged.
1 (Info - default)	Informational events are logged.
2 (Verbose)	Detailed data are logged.
3 (Debug)	Debug data are logged.

The value 1 (Info) logs basic information, including the URL, HTTP version, and status details.

The value 2 (Verbose) logs additional information about the request and response.

The value 3 (Debug) logs the headers and body for both the request and response, as well as additional debug information (if any).

MaxRedirectAttempts: Limits the number of redirects that are followed in a request.

When FollowRedirects is set to any value other than frNever, the class will follow redirects until this maximum number of redirect attempts are made. The default value is 20.

NegotiatedHTTPVersion: The negotiated HTTP version.

This configuration setting may be queried after the request is complete to indicate the HTTP version used. When HTTPVersion is set to "2.0" (if the server does not support "2.0"), then the class will fall back to using "1.1" automatically. This setting will indicate which version was used.

OtherHeaders: Other headers as determined by the user (optional).

This configuration setting can be set to a string of headers to be appended to the HTTP request headers.

The headers must follow the format "header: value" as described in the HTTP specifications. Header lines should be separated by CRLF ("\r\n") .

Use this configuration setting with caution. If this configuration setting contains invalid headers, HTTP requests may fail.

This configuration setting is useful for extending the functionality of the class beyond what is provided.

ProxyAuthorization: The authorization string to be sent to the proxy server.

This is similar to the Authorization configuration setting, but is used for proxy authorization. If this configuration setting contains a nonempty string, a Proxy-Authorization HTTP request header is added to the request. This header conveys proxy Authorization information to the server. If User and Password are specified, this value is calculated using the algorithm specified by AuthScheme.

ProxyAuthScheme: The authorization scheme to be used for the proxy.

This configuration setting is provided for use by classs that do not directly expose Proxy properties.

ProxyPassword: A password if authentication is to be used for the proxy.

This configuration setting is provided for use by classs that do not directly expose Proxy properties.

ProxyPort: Port for the proxy server (default 80).

This configuration setting is provided for use by classs that do not directly expose Proxy properties.

ProxyServer: Name or IP address of a proxy server (optional).

This configuration setting is provided for use by classs that do not directly expose Proxy properties.

ProxyUser: A user name if authentication is to be used for the proxy.

This configuration setting is provided for use by classs that do not directly expose Proxy properties.

SentHeaders: The full set of headers as sent by the client.

This configuration setting returns the complete set of raw headers as sent by the client.

StatusCode: The status code of the last response from the server.

This configuration setting contains the result code of the last response from the server.

StatusLine: The first line of the last response from the server.

This setting contains the first line of the last response from the server. The format of the line will be [HTTP version] [Result Code] [Description].

TransferredData: The contents of the last response from the server.

This configuration setting contains the contents of the last response from the server.

TransferredDataLimit: The maximum number of incoming bytes to be stored by the class.

If TransferredDataLimit is set to 0 (default), no limits are imposed. Otherwise, this reflects the maximum number of incoming bytes that can be stored by the class.

TransferredHeaders: The full set of headers as received from the server.

This configuration setting returns the complete set of raw headers as received from the server.

TransferredRequest: The full request as sent by the client.

This configuration setting returns the full request as sent by the client. For performance reasons, the request is not normally saved. Set this configuration setting to ON before making a request to enable it. Following are examples of this request:

.NET Http http = new Http(); http.Config("TransferredRequest=on"); http.PostData = "body"; http.Post("http://someserver.com"); Console.WriteLine(http.Config("TransferredRequest")); C++ HTTP http; http.Config("TransferredRequest=on"); http.SetPostData("body", 5); http.Post("http://someserver.com"); printf("%s\r\n", http.Config("TransferredRequest"));

UseChunkedEncoding: Enables or Disables HTTP chunked encoding for transfers.

If UseChunkedEncoding is set to True, the class will use HTTP-chunked encoding when posting, if possible. HTTP-chunked encoding allows large files to be sent in chunks instead of all at once. If set to False, the class will not use HTTP-chunked encoding. The default value is False.

Note: Some servers (such as the ASP.NET Development Server) may not support chunked encoding.

UseIDNs: Whether to encode hostnames to internationalized domain names.

This configuration setting specifies whether hostnames containing non-ASCII characters are encoded to internationalized domain names. When set to True, if a hostname contains non-ASCII characters, it is encoded using Punycode to an IDN (internationalized domain name).

The default value is False and the hostname will always be used exactly as specified. Note: The CodePage setting must be set to a value capable of interpreting the specified host name. For instance, to specify UTF-8, set CodePage to 65001. In the C++ Edition for Windows, the *W version of the class must be used. For instance, DNSW or HTTPW.

UsePlatformHTTPClient: Whether or not to use the platform HTTP client.

When using this configuration setting, if True, the component will use the default HTTP client for the platform (URLConnection in Java, WebRequest in .NET, or CFHTTPMessage in Mac/iOS) instead of the internal HTTP implementation. This is important for environments in which direct access to sockets is limited or not allowed (e.g., in the Google AppEngine).

Note: This setting is applicable only to Mac/iOS editions.

UseProxyAutoConfigURL: Whether to use a Proxy auto-config file when attempting a connection.

This configuration specifies whether the class will attempt to use the Proxy auto-config URL when establishing a connection and AutoDetect is set to True.

When True (default), the class will check for the existence of a Proxy auto-config URL, and if found, will determine the appropriate proxy to use.

UserAgent: Information about the user agent (browser).

This is the value supplied in the HTTP User-Agent header. The default setting is "IPWorks HTTP Component - www.nsoftware.com".

Override the default with the name and version of your software.

TCPClient Config Settings

ConnectionTimeout: Sets a separate timeout value for establishing a connection.

When set, this configuration setting allows you to specify a different timeout value for establishing a connection. Otherwise, the class will use Timeout for establishing a connection and transmitting/receiving data.

FirewallAutoDetect: Tells the class whether or not to automatically detect and use firewall system settings, if available.

This configuration setting is provided for use by classs that do not directly expose Firewall properties.

FirewallHost: Name or IP address of firewall (optional).

If a FirewallHost is given, requested connections will be authenticated through the specified firewall when connecting.

If the FirewallHost setting is set to a Domain Name, a DNS request is initiated. Upon successful termination of the request, the FirewallHost setting is set to the corresponding address. If the search is not successful, an error is returned.

Note: This setting is provided for use by classs that do not directly expose Firewall properties.

FirewallPassword: Password to be used if authentication is to be used when connecting through the firewall.

If FirewallHost is specified, the FirewallUser and FirewallPassword settings are used to connect and authenticate to the given firewall. If the authentication fails, the class fails with an error.

Note: This setting is provided for use by classs that do not directly expose Firewall properties.

FirewallPort: The TCP port for the FirewallHost;.

The FirewallPort is set automatically when FirewallType is set to a valid value.

Note: This configuration setting is provided for use by classs that do not directly expose Firewall properties.

FirewallType: Determines the type of firewall to connect through.

Possible values are as follows:


0	No firewall (default setting).
1	Connect through a tunneling proxy. FirewallPort is set to 80.
2	Connect through a SOCKS4 Proxy. FirewallPort is set to 1080.
3	Connect through a SOCKS5 Proxy. FirewallPort is set to 1080.
10	Connect through a SOCKS4A Proxy. FirewallPort is set to 1080.

Note: This setting is provided for use by classs that do not directly expose Firewall properties.

FirewallUser: A user name if authentication is to be used connecting through a firewall.

If the FirewallHost is specified, the FirewallUser and FirewallPassword settings are used to connect and authenticate to the Firewall. If the authentication fails, the class fails with an error.

Note: This setting is provided for use by classs that do not directly expose Firewall properties.

KeepAliveInterval: The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received.

When set, TCPKeepAlive will automatically be set to True. A TCP keep-alive packet will be sent after a period of inactivity as defined by KeepAliveTime. If no acknowledgment is received from the remote host, the keep-alive packet will be sent again. This configuration setting specifies the interval at which the successive keep-alive packets are sent in milliseconds. This system default if this value is not specified here is 1 second.

Note: This value is not applicable in macOS.

KeepAliveRetryCount: The number of keep-alive packets to be sent before the remotehost is considered disconnected.

When set, TCPKeepAlive will automatically be set to True. A TCP keep-alive packet will be sent after a period of inactivity as defined by KeepAliveTime. If no acknowledgment is received from the remote host, the keep-alive packet will be sent again. This configuration setting specifies the number of times that the keep-alive packets will be sent before the remote host is considered disconnected. The system default if this value is not specified here is 9.

Note: This configuration setting is only available in the Unix platform. It is not supported in masOS or FreeBSD.

KeepAliveTime: The inactivity time in milliseconds before a TCP keep-alive packet is sent.

When set, TCPKeepAlive will automatically be set to True. By default, the operating system will determine the time a connection is idle before a Transmission Control Protocol (TCP) keep-alive packet is sent. This system default if this value is not specified here is 2 hours. In many cases, a shorter interval is more useful. Set this value to the desired interval in milliseconds.

Linger: When set to True, connections are terminated gracefully.

This property controls how a connection is closed. The default is True.

In the case that Linger is True (default), two scenarios determine how long the connection will linger. In the first, if LingerTime is 0 (default), the system will attempt to send pending data for a connection until the default IP timeout expires.

In the second scenario, if LingerTime is a positive value, the system will attempt to send pending data until the specified LingerTime is reached. If this attempt fails, then the system will reset the connection.

The default behavior (which is also the default mode for stream sockets) might result in a long delay in closing the connection. Although the class returns control immediately, the system could hold system resources until all pending data are sent (even after your application closes).

Setting this property to False forces an immediate disconnection. If you know that the other side has received all the data you sent (e.g., by a client acknowledgment), setting this property to False might be the appropriate course of action.

LingerTime: Time in seconds to have the connection linger.

LingerTime is the time, in seconds, the socket connection will linger. This value is 0 by default, which means it will use the default IP timeout.

LocalHost: The name of the local host through which connections are initiated or accepted.

The LocalHost setting 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 multihomed hosts (machines with more than one IP interface), setting LocalHost to the value of an interface will make the class initiate connections (or accept in the case of server classs) only through that interface.

If the class is connected, the LocalHost setting 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 multihomed hosts (machines with more than one IP interface).

LocalPort: The port in the local host where the class binds.

This configuration setting must be set before a connection is attempted. It instructs the class to bind to a specific port (or communication endpoint) in the local machine.

Setting this to 0 (default) enables the system to choose a port at random. The chosen port will be shown by LocalPort after the connection is established.

LocalPort cannot be changed once a connection is made. Any attempt to set this when a connection is active will generate an error.

This configuration setting is useful when trying to connect to services that require a trusted port on the client side. An example is the remote shell (rsh) service in UNIX systems.

MaxLineLength: The maximum amount of data to accumulate when no EOL is found.

MaxLineLength is the size of an internal buffer, which holds received data while waiting for an EOL string.

If an EOL string is found in the input stream before MaxLineLength bytes are received, the DataIn event is fired with the EOL parameter set to True, and the buffer is reset.

If no EOL is found, and MaxLineLength bytes are accumulated in the buffer, the DataIn event is fired with the EOL parameter set to False, and the buffer is reset.

The minimum value for MaxLineLength is 256 bytes. The default value is 2048 bytes.

MaxTransferRate: The transfer rate limit in bytes per second.

This configuration setting can be used to throttle outbound TCP traffic. Set this to the number of bytes to be sent per second. By default, this is not set and there is no limit.

ProxyExceptionsList: A semicolon separated list of hosts and IPs to bypass when using a proxy.

This configuration setting optionally specifies a semicolon-separated list of hostnames or IP addresses to bypass when a proxy is in use. When requests are made to hosts specified in this property, the proxy will not be used. For instance:

www.google.com;www.nsoftware.com

TCPKeepAlive: Determines whether or not the keep alive socket option is enabled.

If set to True, the socket's keep-alive option is enabled and keep-alive packets will be sent periodically to maintain the connection. Set KeepAliveTime and KeepAliveInterval to configure the timing of the keep-alive packets.

Note: This value is not applicable in Java.

TcpNoDelay: Whether or not to delay when sending packets.

When set to True, the socket will send all data that are ready to send at once. When set to False, the socket will send smaller buffered packets of data at small intervals. This is known as the Nagle algorithm.

By default, this configuration setting is set to False.

UseIPv6: Whether to use IPv6.

When set to 0 (default), the class will use IPv4 exclusively. When set to 1, the class will use IPv6 exclusively. To instruct the class to prefer IPv6 addresses, but use IPv4 if IPv6 is not supported on the system, this setting should be set to 2. The default value is 0. Possible values are as follows:


0	IPv4 only
1	IPv6 only
2	IPv6 with IPv4 fallback

SSL Config Settings

LogSSLPackets: Controls whether SSL packets are logged when using the internal security API.

When SSLProvider is set to Internal, this configuration setting controls whether Secure Sockets Layer (SSL) packets should be logged. By default, this configuration setting is False, as it is useful only for debugging purposes.

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 configuration setting has no effect if SSLProvider is set to Platform.

OpenSSLCADir: The path to a directory containing CA certificates.

This functionality is available only when the provider is OpenSSL.

The path set by this property should point to a directory containing CA certificates in PEM format. The files each contain one CA certificate. The files are looked up by the CA subject name hash value, which must hence be available. If more than one CA certificate with the same name hash value exist, the extension must be different (e.g., 9d66eef0.0, 9d66eef0.1). OpenSSL recommends the use of the c_rehash utility to create the necessary links. Please refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.

OpenSSLCAFile: Name of the file containing the list of CA's trusted by your application.

This functionality is available only when the provider is OpenSSL.

The file set by this property should contain a list of CA certificates in PEM format. The file can contain several CA certificates identified by the following sequences:

-----BEGIN CERTIFICATE-----

... (CA certificate in base64 encoding) ...

-----END CERTIFICATE-----

Before, between, and after the certificate text is allowed, which can be used, for example, for descriptions of the certificates. Refer to the OpenSSL man page SSL_CTX_load_verify_locations(3) for details.

OpenSSLCipherList: A string that controls the ciphers to be used by SSL.

This functionality is available only when the provider is OpenSSL.

The format of this string is described in the OpenSSL man page ciphers(1) section "CIPHER LIST FORMAT". Please refer to it for details. The default string "DEFAULT" is determined at compile time and is normally equivalent to "ALL:!ADH:RC4+RSA:+SSLv2:@STRENGTH".

OpenSSLPrngSeedData: The data to seed the pseudo random number generator (PRNG).

This functionality is available only when the provider is OpenSSL.

By default, OpenSSL uses the device file "/dev/urandom" to seed the PRNG, and setting OpenSSLPrngSeedData is not required. If set, the string specified is used to seed the PRNG.

ReuseSSLSession: Determines if the SSL session is reused.

If set to True, the class 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 class is the same.

SSLCACertFilePaths: The paths to CA certificate files on Unix/Linux.

This configuration setting specifies the paths on disk to CA certificate files on Unix/Linux.

The value is formatted as a list of paths separated by semicolons. The class will check for the existence of each file in the order specified. When a file is found, the CA certificates within the file will be loaded and used to determine the validity of server or client certificates.

The default value is as follows:

/etc/ssl/ca-bundle.pem;/etc/pki/tls/certs/ca-bundle.crt;/etc/ssl/certs/ca-certificates.crt;/etc/pki/tls/cacert.pem

SSLCACerts: A newline separated list of CA certificates to be included when performing an SSL handshake.

When SSLProvider is set to Internal, this configuration setting specifies one or more CA certificates to be included with the SSLCert property. Some servers or clients require the entire chain, including CA certificates, to be presented when performing SSL authentication. The value of this configuration setting is a newline-separated (CR/LF) list of certificates. For instance:

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
... Intermediate Cert ...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
... Root Cert ...
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

SSLCipherStrength: The minimum cipher strength used for bulk encryption.

This minimum cipher strength is largely dependent on the security modules installed on the system. If the cipher strength specified is not supported, an error will be returned when connections are initiated.

Note: This configuration 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 configuration 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 configuration setting.

SSLClientCACerts: A newline separated list of CA certificates to use during SSL client certificate validation.

This configuration setting is only applicable to server components (e.g., TCPServer) see SSLServerCACerts for client components (e.g., TCPClient). This setting can be used to optionally specify one or more CA certificates to be used when verifying the client certificate that is presented by the client during the SSL handshake when SSLAuthenticateClients is enabled. When verifying the client's certificate, the certificates trusted by the system will be used as part of the verification process. If the client's CA certificates are not installed to the trusted system store, they may be specified here so they are included when performing the verification process. This configuration setting should be set only if the client's CA certificates are not already trusted on the system and cannot be installed to the trusted system store.

The value of this configuration setting is a newline-separated (CR/LF) list of certificates. For instance:

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
... Intermediate Cert ...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
... Root Cert ...
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

SSLEnabledCipherSuites: The cipher suite to be used in an SSL negotiation.

This configuration setting enables the cipher suites to be used in SSL negotiation.

By default, the enabled cipher suites will include all available ciphers ("*").

The special value "*" means that the class 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.

Example values when SSLProvider is set to Platform include the following: obj.config("SSLEnabledCipherSuites=*"); obj.config("SSLEnabledCipherSuites=CALG_AES_256"); obj.config("SSLEnabledCipherSuites=CALG_AES_256;CALG_3DES"); Possible values when SSLProvider is set to Platform include the following:

CALG_3DES
CALG_3DES_112
CALG_AES
CALG_AES_128
CALG_AES_192
CALG_AES_256
CALG_AGREEDKEY_ANY
CALG_CYLINK_MEK
CALG_DES
CALG_DESX
CALG_DH_EPHEM
CALG_DH_SF
CALG_DSS_SIGN
CALG_ECDH
CALG_ECDH_EPHEM
CALG_ECDSA
CALG_ECMQV
CALG_HASH_REPLACE_OWF
CALG_HUGHES_MD5
CALG_HMAC
CALG_KEA_KEYX
CALG_MAC
CALG_MD2
CALG_MD4
CALG_MD5
CALG_NO_SIGN
CALG_OID_INFO_CNG_ONLY
CALG_OID_INFO_PARAMETERS
CALG_PCT1_MASTER
CALG_RC2
CALG_RC4
CALG_RC5
CALG_RSA_KEYX
CALG_RSA_SIGN
CALG_SCHANNEL_ENC_KEY
CALG_SCHANNEL_MAC_KEY
CALG_SCHANNEL_MASTER_HASH
CALG_SEAL
CALG_SHA
CALG_SHA1
CALG_SHA_256
CALG_SHA_384
CALG_SHA_512
CALG_SKIPJACK
CALG_SSL2_MASTER
CALG_SSL3_MASTER
CALG_SSL3_SHAMD5
CALG_TEK
CALG_TLS1_MASTER
CALG_TLS1PRF

Example values when SSLProvider is set to Internalinclude the following:

obj.config("SSLEnabledCipherSuites=*");
obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA");
obj.config("SSLEnabledCipherSuites=TLS_DHE_DSS_WITH_AES_128_CBC_SHA;TLS_ECDH_RSA_WITH_AES_128_CBC_SHA");

Possible values when SSLProvider is set to Internal include the following:

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_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.

SSLEnabledProtocols: Used to enable/disable the supported security protocols.

This configuration setting is used to enable or disable the supported security protocols.

Not all supported protocols are enabled by default. The default value is 4032 for client components, and 3072 for server components. To specify a combination of enabled protocol versions set this config to the binary OR of one or more of the following values:


TLS1.3	12288 (Hex 3000)
TLS1.2	3072 (Hex C00) (Default - Client and Server)
TLS1.1	768 (Hex 300) (Default - Client)
TLS1	192 (Hex C0) (Default - Client)
SSL3	48 (Hex 30)
SSL2	12 (Hex 0C)

Note that only TLS 1.2 is enabled for server components that accept incoming connections. This adheres to industry standards to ensure a secure connection. Client components enable TLS 1.0, TLS 1.1, and TLS 1.2 by default and will negotiate the highest mutually supported version when connecting to a server, which should be TLS 1.2 in most cases.

SSLEnabledProtocols: Transport Layer Security (TLS) 1.3 Notes:

By default when TLS 1.3 is enabled, the class will use the internal TLS implementation when the SSLProvider is set to Automatic for all editions.

In editions that 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 supported only 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 available only 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, these 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 class 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.

SSLEnableRenegotiation: Whether the renegotiation_info SSL extension is supported.

This configuration setting specifies whether the renegotiation_info SSL extension will be used in the request when using the internal security API. This configuration setting is false by default, but it can be set to true to enable the extension.

This configuration setting is applicable only when SSLProvider is set to Internal.

SSLIncludeCertChain: Whether the entire certificate chain is included in the SSLServerAuthentication event.

This configuration setting specifies whether the Encoded parameter of the SSLServerAuthentication event contains the full certificate chain. By default this value is False and only the leaf certificate will be present in the Encoded parameter of the SSLServerAuthentication event.

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.

SSLKeyLogFile: The location of a file where per-session secrets are written for debugging purposes.

This configuration setting optionally specifies the full path to a file on disk where per-session secrets are stored for debugging purposes.

When set, the class 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 traffic for debugging purposes. When writing to this file, the class will only append, it will not overwrite previous values.

Note: This configuration setting is applicable only when SSLProvider is set to Internal.

SSLNegotiatedCipher: Returns the negotiated cipher suite.

This configuration setting returns the cipher suite negotiated during the SSL handshake.

Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipher[connId]");

SSLNegotiatedCipherStrength: Returns the negotiated cipher suite strength.

This configuration setting returns the strength of the cipher suite negotiated during the SSL handshake.

Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedCipherStrength[connId]");

SSLNegotiatedCipherSuite: Returns the negotiated cipher suite.

This configuration setting returns the cipher suite negotiated during the SSL handshake represented as a single string.

SSLNegotiatedKeyExchange: Returns the negotiated key exchange algorithm.

This configuration setting returns the key exchange algorithm negotiated during the SSL handshake.

SSLNegotiatedKeyExchangeStrength: Returns the negotiated key exchange algorithm strength.

This configuration setting returns the strength of the key exchange algorithm negotiated during the SSL handshake.

SSLNegotiatedVersion: Returns the negotiated protocol version.

This configuration setting returns the protocol version negotiated during the SSL handshake.

Note: For server components (e.g., TCPServer), this is a per-connection configuration setting accessed by passing the ConnectionId. For example: server.Config("SSLNegotiatedVersion[connId]");

SSLSecurityFlags: Flags that control certificate verification.

The following flags are defined (specified in hexadecimal notation). They can be ORed together to exclude multiple conditions:


0x00000001	Ignore time validity status of certificate.
0x00000002	Ignore time validity status of CTL.
0x00000004	Ignore non-nested certificate times.
0x00000010	Allow unknown certificate authority.
0x00000020	Ignore wrong certificate usage.
0x00000100	Ignore unknown certificate revocation status.
0x00000200	Ignore unknown CTL signer revocation status.
0x00000400	Ignore unknown certificate authority revocation status.
0x00000800	Ignore unknown root revocation status.
0x00008000	Allow test root certificate.
0x00004000	Trust test root certificate.
0x80000000	Ignore non-matching CN (certificate CN non-matching server name).

This functionality is currently not available when the provider is OpenSSL.

SSLServerCACerts: A newline separated list of CA certificates to use during SSL server certificate validation.

This configuration setting is only used by client components (e.g., TCPClient) see SSLClientCACerts for server components (e.g., TCPServer). This configuration setting can be used to optionally specify one or more CA certificates to be used when connecting to the server and verifying the server certificate. When verifying the server's certificate, the certificates trusted by the system will be used as part of the verification process. If the server's CA certificates are not installed to the trusted system store, they may be specified here so they are included when performing the verification process. This configuration setting should be set only if the server's CA certificates are not already trusted on the system and cannot be installed to the trusted system store.

The value of this configuration setting is a newline-separated (CR/LF) list of certificates. For instance:

-----BEGIN CERTIFICATE-----
MIIEKzCCAxOgAwIBAgIRANTET4LIkxdH6P+CFIiHvTowDQYJKoZIhvcNAQELBQAw
... Intermediate Cert...
eWHV5OW1K53o/atv59sOiW5K3crjFhsBOd5Q+cJJnU+SWinPKtANXMht+EDvYY2w
F0I1XhM+pKj7FjDr+XNj
-----END CERTIFICATE-----
\r \n
-----BEGIN CERTIFICATE-----
MIIEFjCCAv6gAwIBAgIQetu1SMxpnENAnnOz1P+PtTANBgkqhkiG9w0BAQUFADBp
... Root Cert...
d8q23djXZbVYiIfE9ebr4g3152BlVCHZ2GyPdjhIuLeH21VbT/dyEHHA
-----END CERTIFICATE-----

TLS12SignatureAlgorithms: Defines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal.

This configuration setting specifies the allowed server certificate signature algorithms when SSLProvider is set to Internal and SSLEnabledProtocols is set to allow TLS 1.2.

When specified the class will verify that the server certificate signature algorithm is among the values specified in this configuration setting. If the server certificate signature algorithm is unsupported, the class fails with an error.

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 configuration 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.

To not restrict the server's certificate signature algorithm, specify an empty string as the value for this configuration setting, which will cause the signature_algorithms TLS 1.2 extension to not be sent.

TLS12SupportedGroups: The supported groups for ECC.

This configuration setting specifies a comma-separated list of named groups used in TLS 1.2 for ECC.

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)

TLS13KeyShareGroups: The groups for which to pregenerate key shares.

This configuration setting specifies a comma-separated list of named groups used in TLS 1.3 for key exchange. The groups specified here will have key share data pregenerated locally before establishing a connection. This can prevent an additional roundtrip during the handshake if the group is supported by the server.

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 configuration setting.

Note: All supported groups can always be used during the handshake even if not listed here, but if a group is used that is not present in this list, it will incur an additional roundtrip and time to generate the key share for that group.

In most cases, this configuration setting does not need to be modified. This should be modified only 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"

TLS13SignatureAlgorithms: The allowed certificate signature algorithms.

This configuration setting holds a comma-separated list of allowed signature algorithms. Possible values include the following:

"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 rsa_pss_sha256,rsa_pss_sha384,rsa_pss_sha512,rsa_pkcs1_sha256,rsa_pkcs1_sha384,rsa_pkcs1_sha512,ecdsa_secp256r1_sha256,ecdsa_secp384r1_sha384,ecdsa_secp521r1_sha512,ed25519,ed448. This configuration setting is applicable only when SSLEnabledProtocols includes TLS 1.3.

TLS13SupportedGroups: The supported groups for (EC)DHE key exchange.

This configuration setting specifies a comma-separated list of named groups used in TLS 1.3 for key exchange. This configuration setting should be modified only if there is a specific reason to do so.

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)

Socket Config Settings

AbsoluteTimeout: Determines whether timeouts are inactivity timeouts or absolute timeouts.

If AbsoluteTimeout is set to True, any method that does not complete within Timeout seconds will be aborted. By default, AbsoluteTimeout is False, and the timeout is an inactivity timeout.

Note: This option is not valid for User Datagram Protocol (UDP) ports.

FirewallData: Used to send extra data to the firewall.

When the firewall is a tunneling proxy, use this property to send custom (additional) headers to the firewall (e.g., headers for custom authentication schemes).

InBufferSize: The size in bytes of the incoming queue of the socket.

This is the size of an internal queue in the Transmission Control Protocol (TCP)/IP stack. You can increase or decrease its size depending on the amount of data that you will be receiving. In some cases, increasing the value of the InBufferSize setting can provide significant improvements in performance.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the InBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

OutBufferSize: The size in bytes of the outgoing queue of the socket.

This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be sending. In some cases, increasing the value of the OutBufferSize setting can provide significant improvements in performance.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the class is activated the OutBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

Base Config Settings

BuildInfo: Information about the product's build.

When queried, this setting will return a string containing information about the product's build.

CodePage: The system code page used for Unicode to Multibyte translations.

The default code page is Unicode UTF-8 (65001).

The following is a list of valid code page identifiers:


Identifier	Name
037	IBM EBCDIC - U.S./Canada
437	OEM - United States
500	IBM EBCDIC - International
708	Arabic - ASMO 708
709	Arabic - ASMO 449+, BCON V4
710	Arabic - Transparent Arabic
720	Arabic - Transparent ASMO
737	OEM - Greek (formerly 437G)
775	OEM - Baltic
850	OEM - Multilingual Latin I
852	OEM - Latin II
855	OEM - Cyrillic (primarily Russian)
857	OEM - Turkish
858	OEM - Multilingual Latin I + Euro symbol
860	OEM - Portuguese
861	OEM - Icelandic
862	OEM - Hebrew
863	OEM - Canadian-French
864	OEM - Arabic
865	OEM - Nordic
866	OEM - Russian
869	OEM - Modern Greek
870	IBM EBCDIC - Multilingual/ROECE (Latin-2)
874	ANSI/OEM - Thai (same as 28605, ISO 8859-15)
875	IBM EBCDIC - Modern Greek
932	ANSI/OEM - Japanese, Shift-JIS
936	ANSI/OEM - Simplified Chinese (PRC, Singapore)
949	ANSI/OEM - Korean (Unified Hangul Code)
950	ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC)
1026	IBM EBCDIC - Turkish (Latin-5)
1047	IBM EBCDIC - Latin 1/Open System
1140	IBM EBCDIC - U.S./Canada (037 + Euro symbol)
1141	IBM EBCDIC - Germany (20273 + Euro symbol)
1142	IBM EBCDIC - Denmark/Norway (20277 + Euro symbol)
1143	IBM EBCDIC - Finland/Sweden (20278 + Euro symbol)
1144	IBM EBCDIC - Italy (20280 + Euro symbol)
1145	IBM EBCDIC - Latin America/Spain (20284 + Euro symbol)
1146	IBM EBCDIC - United Kingdom (20285 + Euro symbol)
1147	IBM EBCDIC - France (20297 + Euro symbol)
1148	IBM EBCDIC - International (500 + Euro symbol)
1149	IBM EBCDIC - Icelandic (20871 + Euro symbol)
1200	Unicode UCS-2 Little-Endian (BMP of ISO 10646)
1201	Unicode UCS-2 Big-Endian
1250	ANSI - Central European
1251	ANSI - Cyrillic
1252	ANSI - Latin I
1253	ANSI - Greek
1254	ANSI - Turkish
1255	ANSI - Hebrew
1256	ANSI - Arabic
1257	ANSI - Baltic
1258	ANSI/OEM - Vietnamese
1361	Korean (Johab)
10000	MAC - Roman
10001	MAC - Japanese
10002	MAC - Traditional Chinese (Big5)
10003	MAC - Korean
10004	MAC - Arabic
10005	MAC - Hebrew
10006	MAC - Greek I
10007	MAC - Cyrillic
10008	MAC - Simplified Chinese (GB 2312)
10010	MAC - Romania
10017	MAC - Ukraine
10021	MAC - Thai
10029	MAC - Latin II
10079	MAC - Icelandic
10081	MAC - Turkish
10082	MAC - Croatia
12000	Unicode UCS-4 Little-Endian
12001	Unicode UCS-4 Big-Endian
20000	CNS - Taiwan
20001	TCA - Taiwan
20002	Eten - Taiwan
20003	IBM5550 - Taiwan
20004	TeleText - Taiwan
20005	Wang - Taiwan
20105	IA5 IRV International Alphabet No. 5 (7-bit)
20106	IA5 German (7-bit)
20107	IA5 Swedish (7-bit)
20108	IA5 Norwegian (7-bit)
20127	US-ASCII (7-bit)
20261	T.61
20269	ISO 6937 Non-Spacing Accent
20273	IBM EBCDIC - Germany
20277	IBM EBCDIC - Denmark/Norway
20278	IBM EBCDIC - Finland/Sweden
20280	IBM EBCDIC - Italy
20284	IBM EBCDIC - Latin America/Spain
20285	IBM EBCDIC - United Kingdom
20290	IBM EBCDIC - Japanese Katakana Extended
20297	IBM EBCDIC - France
20420	IBM EBCDIC - Arabic
20423	IBM EBCDIC - Greek
20424	IBM EBCDIC - Hebrew
20833	IBM EBCDIC - Korean Extended
20838	IBM EBCDIC - Thai
20866	Russian - KOI8-R
20871	IBM EBCDIC - Icelandic
20880	IBM EBCDIC - Cyrillic (Russian)
20905	IBM EBCDIC - Turkish
20924	IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol)
20932	JIS X 0208-1990 & 0121-1990
20936	Simplified Chinese (GB2312)
21025	IBM EBCDIC - Cyrillic (Serbian, Bulgarian)
21027	Extended Alpha Lowercase
21866	Ukrainian (KOI8-U)
28591	ISO 8859-1 Latin I
28592	ISO 8859-2 Central Europe
28593	ISO 8859-3 Latin 3
28594	ISO 8859-4 Baltic
28595	ISO 8859-5 Cyrillic
28596	ISO 8859-6 Arabic
28597	ISO 8859-7 Greek
28598	ISO 8859-8 Hebrew
28599	ISO 8859-9 Latin 5
28605	ISO 8859-15 Latin 9
29001	Europa 3
38598	ISO 8859-8 Hebrew
50220	ISO 2022 Japanese with no halfwidth Katakana
50221	ISO 2022 Japanese with halfwidth Katakana
50222	ISO 2022 Japanese JIS X 0201-1989
50225	ISO 2022 Korean
50227	ISO 2022 Simplified Chinese
50229	ISO 2022 Traditional Chinese
50930	Japanese (Katakana) Extended
50931	US/Canada and Japanese
50933	Korean Extended and Korean
50935	Simplified Chinese Extended and Simplified Chinese
50936	Simplified Chinese
50937	US/Canada and Traditional Chinese
50939	Japanese (Latin) Extended and Japanese
51932	EUC - Japanese
51936	EUC - Simplified Chinese
51949	EUC - Korean
51950	EUC - Traditional Chinese
52936	HZ-GB2312 Simplified Chinese
54936	Windows XP: GB18030 Simplified Chinese (4 Byte)
57002	ISCII Devanagari
57003	ISCII Bengali
57004	ISCII Tamil
57005	ISCII Telugu
57006	ISCII Assamese
57007	ISCII Oriya
57008	ISCII Kannada
57009	ISCII Malayalam
57010	ISCII Gujarati
57011	ISCII Punjabi
65000	Unicode UTF-7
65001	Unicode UTF-8

The following is a list of valid code page identifiers for Mac OS only:


Identifier	Name
1	ASCII
2	NEXTSTEP
3	JapaneseEUC
4	UTF8
5	ISOLatin1
6	Symbol
7	NonLossyASCII
8	ShiftJIS
9	ISOLatin2
10	Unicode
11	WindowsCP1251
12	WindowsCP1252
13	WindowsCP1253
14	WindowsCP1254
15	WindowsCP1250
21	ISO2022JP
30	MacOSRoman
10	UTF16String
0x90000100	UTF16BigEndian
0x94000100	UTF16LittleEndian
0x8c000100	UTF32String
0x98000100	UTF32BigEndian
0x9c000100	UTF32LittleEndian
65536	Proprietary

LicenseInfo: Information about the current license.

When queried, this setting will return a string containing information about the license this instance of a class is using. It will return the following information:

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.

MaskSensitiveData: Whether sensitive data is masked in log messages.

In certain circumstances it may be beneficial to mask sensitive data, like passwords, in log messages. Set this to true to mask sensitive data. The default is true.

This setting only works on these classes: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.

ProcessIdleEvents: Whether the class uses its internal event loop to process events when the main thread is idle.

If set to False, the class will not fire internal idle events. Set this to False to use the class in a background thread on Mac OS. By default, this setting is True.

SelectWaitMillis: The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process.

If there are no events to process when DoEvents is called, the class will wait for the amount of time specified here before returning. The default value is 20.

UseInternalSecurityAPI: Whether or not to use the system security libraries or an internal implementation.

When set to false, the class will use the system security libraries by default to perform cryptographic functions where applicable.

Setting this configuration setting to true tells the class to use the internal implementation instead of using the system security libraries.

On Windows, this setting is set to false by default. On Linux/macOS, this setting is set to true by default.

To use the system security libraries for Linux, OpenSSL support must be enabled. For more information on how to enable OpenSSL, please refer to the OpenSSL Notes section.

Trappable Errors (WSClient Class)

Error Handling (C++)

Call the GetLastErrorCode() method to obtain the last called method's result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. Known error codes are listed below. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

WebSocket Errors

4001	Error transmitting packet.
4002	Error sending CLOSE packet.
4003	General protocol error.

HTTP Errors

118	Firewall error. The error description contains the detailed message.
143	Busy executing current method.
151	HTTP protocol error. The error message has the server response.
152	No server specified in URL.
153	Specified URLScheme is invalid.
155	Range operation is not supported by server.
156	Invalid cookie index (out of range).
301	Interrupted.
302	Cannot open AttachedFile.

The class may also return one of the following error codes, which are inherited from other classes.

TCPClient Errors

100	You cannot change the RemotePort at this time. A connection is in progress.
101	You cannot change the RemoteHost (Server) at this time. A connection is in progress.
102	The RemoteHost address is invalid (0.0.0.0).
104	Already connected. If you want to reconnect, close the current connection first.
106	You cannot change the LocalPort at this time. A connection is in progress.
107	You cannot change the LocalHost at this time. A connection is in progress.
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.
117	You cannot change the UseConnection option while the class is active.
135	Operation would block.
201	Timeout.
211	Action impossible in control's present state.
212	Action impossible while not connected.
213	Action impossible while listening.
301	Timeout.
302	Could not open file.
434	Unable to convert string to selected CodePage.
1105	Already connecting. If you want to reconnect, close the current connection first.
1117	You need to connect first.
1119	You cannot change the LocalHost at this time. A connection is in progress.
1120	Connection dropped by remote host.

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 nonsocket.
10039	[10039] Destination address required.
10040	[10040] Message is too long.
10041	[10041] Protocol wrong type for socket.
10042	[10042] Bad protocol option.
10043	[10043] Protocol is not supported.
10044	[10044] Socket type is not supported.
10045	[10045] Operation is not supported on socket.
10046	[10046] Protocol family is not supported.
10047	[10047] Address family is not supported by protocol family.
10048	[10048] Address already in use.
10049	[10049] Cannot 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] Cannot send after socket shutdown.
10059	[10059] Too many references, cannot splice.
10060	[10060] Connection timed out.
10061	[10061] Connection refused.
10062	[10062] Too many levels of symbolic links.
10063	[10063] File name is too long.
10064	[10064] Host is down.
10065	[10065] No route to host.
10066	[10066] Directory is 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 is not loaded yet.
11001	[11001] Host not found.
11002	[11002] Nonauthoritative 'Host not found' (try again or check DNS setup).
11003	[11003] Nonrecoverable errors: FORMERR, REFUSED, NOTIMP.
11004	[11004] Valid name, no data record (check DNS setup).