XMPP Control

Properties   Methods   Events   Config Settings   Errors  

The XMPP Control is used to create a lightweight messaging client using the XMPP (Jabber) protocol.

Syntax

XMPP

Remarks

The XMPP control supports both plaintext and SSL/TLS connections. When connecting over SSL/TLS the SSLServerAuthentication event allows you to check the server identity and other security attributes. The SSLStatus event provides information about the SSL handshake. Additional SSL related settings are also supported via the Config method.

A call to the ConnectTo method will perform the entire logon process after which a Connected event will fire indicating connection status. For simplicity, the entire interface is synchronous; the control will not return until a call is completed.

After a successful connection, the control will automatically begin the process of receiving the user's buddy list. The control will parse the XML as it comes in from the server and will set the appropriate properties. Once the entire buddy list has been retrieved, a Sync event will fire.

Sending a message is as simple as calling a single method. One call to the SendMessage method will cause the control to connect if it has not already done so, send the specified message to a specified user, and return to the original connection state.

The XMPP Control interface supports messaging, list and presence management. Other features of the XMPP protocol are supported through the SendCommand method and PITrail event.

Example (Connecting and Sending a Message)

IMControl.ConnectTo("myusername", "mypassword") IMControl.MessageText = "My Message" IMControl.SendMessage("ToUser") Example (Sending a Single Message)

IMControl.User = "myusername" IMControl.Password = "mypassword" IMControl.MessageText = "My Message" IMControl.SendMessage("ToUser")

Property List


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

AuthDomainThe domain under which the user will be authenticated.
AuthMethodsControls how the control authenticates itself with the XMPP server.
BuddyCountThe number of records in the Buddy arrays.
BuddyGroupThis is a comma-separated list of the buddy's associated groups.
BuddyIdThis is the jabber id of the buddy.
BuddyNickNameThe nickname of the buddy, if one exists.
BuddyRealNameThe real name of the buddy.
BuddySubscriptionThis is a list of the subscription status for the buddy.
ConnectedThis indicates the control's login status.
FirewallAutoDetectThis property tells the control whether or not to automatically detect and use firewall system settings, if available.
FirewallTypeThis property determines the type of firewall to connect through.
FirewallHostThis property contains the name or IP address of firewall (optional).
FirewallPasswordThis property contains a password if authentication is to be used when connecting through the firewall.
FirewallPortThis property contains the transmission control protocol (TCP) port for the firewall Host .
FirewallUserThis property contains a user name if authentication is to be used connecting through a firewall.
IMPortThe server port for XMPP (default 5222).
IMServerThis is the instant messaging server.
LocalDirectoryThe directory to which received files are saved.
LocalFileThe path to the file that will be sent.
LocalHostThe name of the local host or user-assigned IP interface through which connections are initiated or accepted.
MessageHTMLThis is the HTML version of the current message.
MessageOtherDataThis property contains extra data elements for the current message.
MessageSubjectThis is the subject of the current message.
MessageTextThis is the plain text of the current message.
MessageThreadThis is the thread name of the current message.
MessageTypeThis is the type of the current message.
PasswordThis is the user's password.
PresenceThis is the availability of the entity.
ResourceThis is the resource for the current session.
ServerDomainThe XMPP server's domain.
SSLAcceptServerCertEncodedThis is the certificate (PEM/base64 encoded).
SSLCertEncodedThis is the certificate (PEM/base64 encoded).
SSLCertStoreThis is the name of the certificate store for the client certificate.
SSLCertStorePasswordIf the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
SSLCertStoreTypeThis is the type of certificate store for this certificate.
SSLCertSubjectThis is the subject of the certificate used for client authentication.
SSLEnabledWhether TLS/SSL is enabled.
SSLProviderThis specifies the SSL/TLS implementation to use.
SSLServerCertEncodedThis is the certificate (PEM/base64 encoded).
SSLStartModeDetermines how the control starts the SSL negotiation.
StatusDescription of the availability of this entity.
TimeoutA timeout for the control.
UserThe user portion of this entity's Jabber ID.
UserDomainGets or sets the domain value used for Jabber IDs.
UserInfoCountThe number of records in the UserInfo arrays.
UserInfoFieldThis is the name of the current property necessary for registration.
UserInfoValueThis is the value for the current registration property, and should be set after calling QueryRegister and before calling Register .

Method List


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

AddThis method will add an entity to this entity's roster.
CancelThis will cancel another entity's subscription to this entity's presence.
ChangePasswordThis method will change the current user's password.
ChangePresenceThis method will set the availability and status of this entity.
ConfigSets or retrieves a configuration setting.
ConnectThis method will connect the control to the server.
ConnectToThis method will connect the control to the server.
DisconnectThis method disconnects the control from the server.
DoEventsThis method processes events from the internal message queue.
InterruptInterrupt the current method.
ProbePresenceUse this method to probe for another entity's presence.
QueryRegisterThis method queries a server for the necessary registration fields.
RegisterThis method registers an account with a server.
RemoveThis method will remove an entity from this entity's roster.
ResetReset the control.
RetrieveRosterThis method will retrieve this entity's roster from the server.
SendCommandThis method sends a command to the server.
SendFileSends a file to the specified user.
SendMessageThis method will send a message to the specified user.
SetUserInfoFieldThis method will add a user information field for registration.
SubscribeToUse this method to subscribe to another entity's presence.
UnregisterThis method cancels an account with the host.
UnsubscribeToThis method will cancel a subscription to another entity's presence.
UpdateBuddyGroupUpdates the buddy's associatd groups.

Event List


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

BuddyUpdateThis event is fired whenever a roster entry is updated.
ConnectedThis event is fired when a connection to the IM Server is completed.
ConnectionStatusThis event is fired to indicate changes in the connection state.
DisconnectedThis event is fired when the chat service connection is lost.
EndTransferFired when a file transfer completes.
ErrorThis event is fired when the server sends a protocol error message.
IQThis event is fired for IQ messages not normally supported by the control.
MessageInThis event is fired upon receipt of a message.
PITrailThis event is fired for all protocol messages.
PresenceThis event is fired when the presence of a subscribed entity changes.
ReadyToSendThis event is fired when the control is ready to send data.
SSLServerAuthenticationFired after the server presents its certificate to the client.
SSLStatusShows the progress of the secure connection.
StartTransferFired when a file transfer begins.
SubscriptionRequestThis event fires when a subscription request is received.
SyncThis event fires upon a complete information synchronization with the server.
TransferFired during file transfer.

Config Settings


The following is a list of config settings for the control with short descriptions. Click on the links for further details.

AccessTokenThe OAuth access token used for authentication.
BlockSizeSpecifies the block size for file transfers.
ClientIdThe OAuth client Id used for authentication.
MessageXMLReturns the last root-level element received by the control.
OverwriteSpecifies whether or not to overwrite received files.
ParseHTMLTells XMPP whether or not to parse MessageHTML when it's set.
RetrieveRosterWhether to automatically retrieve the roster when logging in.
SendSubscriptionResponseDetermines whether a response will be sent to a Subscription Request.
UseCompressionSpecified whether or not stream compression is used.
ConnectionTimeoutSets a separate timeout value for establishing a connection.
FirewallAutoDetectTells the control whether or not to automatically detect and use firewall system settings, if available.
FirewallHostName or IP address of firewall (optional).
FirewallPasswordPassword to be used if authentication is to be used when connecting through the firewall.
FirewallPortThe TCP port for the FirewallHost;.
FirewallTypeDetermines the type of firewall to connect through.
FirewallUserA user name if authentication is to be used connecting through a firewall.
KeepAliveIntervalThe retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received.
KeepAliveTimeThe inactivity time in milliseconds before a TCP keep-alive packet is sent.
LingerWhen set to True, connections are terminated gracefully.
LingerTimeTime in seconds to have the connection linger.
LocalHostThe name of the local host through which connections are initiated or accepted.
LocalPortThe port in the local host where the control binds.
MaxLineLengthThe maximum amount of data to accumulate when no EOL is found.
MaxTransferRateThe transfer rate limit in bytes per second.
ProxyExceptionsListA semicolon separated list of hosts and IPs to bypass when using a proxy.
TCPKeepAliveDetermines whether or not the keep alive socket option is enabled.
TcpNoDelayWhether or not to delay when sending packets.
UseIPv6Whether to use IPv6.
LogSSLPacketsControls whether SSL packets are logged when using the internal security API.
OpenSSLCADirThe path to a directory containing CA certificates.
OpenSSLCAFileName of the file containing the list of CA's trusted by your application.
OpenSSLCipherListA string that controls the ciphers to be used by SSL.
OpenSSLPrngSeedDataThe data to seed the pseudo random number generator (PRNG).
ReuseSSLSessionDetermines if the SSL session is reused.
SSLCACertsA newline separated list of CA certificate to use during SSL client authentication.
SSLCheckCRLWhether to check the Certificate Revocation List for the server certificate.
SSLCheckOCSPWhether to use OCSP to check the status of the server certificate.
SSLCipherStrengthThe minimum cipher strength used for bulk encryption.
SSLEnabledCipherSuitesThe cipher suite to be used in an SSL negotiation.
SSLEnabledProtocolsUsed to enable/disable the supported security protocols.
SSLEnableRenegotiationWhether the renegotiation_info SSL extension is supported.
SSLIncludeCertChainWhether the entire certificate chain is included in the SSLServerAuthentication event.
SSLKeyLogFileThe location of a file where per-session secrets are written for debugging purposes.
SSLNegotiatedCipherReturns the negotiated cipher suite.
SSLNegotiatedCipherStrengthReturns the negotiated cipher suite strength.
SSLNegotiatedCipherSuiteReturns the negotiated cipher suite.
SSLNegotiatedKeyExchangeReturns the negotiated key exchange algorithm.
SSLNegotiatedKeyExchangeStrengthReturns the negotiated key exchange algorithm strength.
SSLNegotiatedVersionReturns the negotiated protocol version.
SSLSecurityFlagsFlags that control certificate verification.
SSLServerCACertsA newline separated list of CA certificate to use during SSL server certificate validation.
TLS12SignatureAlgorithmsDefines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal.
TLS12SupportedGroupsThe supported groups for ECC.
TLS13KeyShareGroupsThe groups for which to pregenerate key shares.
TLS13SignatureAlgorithmsThe allowed certificate signature algorithms.
TLS13SupportedGroupsThe supported groups for (EC)DHE key exchange.
AbsoluteTimeoutDetermines whether timeouts are inactivity timeouts or absolute timeouts.
FirewallDataUsed to send extra data to the firewall.
InBufferSizeThe size in bytes of the incoming queue of the socket.
OutBufferSizeThe size in bytes of the outgoing queue of the socket.

AuthDomain Property (XMPP Control)

The domain under which the user will be authenticated.

Syntax

xmppcontrol.AuthDomain[=string]

Default Value

""

Remarks

Set this value if the user must authenticate via a third party authentication service that requires a different domain than the XMPP user's registered domain.

Data Type

String

AuthMethods Property (XMPP Control)

Controls how the control authenticates itself with the XMPP server.

Syntax

xmppcontrol.AuthMethods[=string]

Default Value

"*"

Remarks

AuthMethods is a comma-separated list of authentication methods to be enabled on the control, listed in order of preference. When authenticating, the control will pick the first method in the list that is supported by the server.

The special value * (default) may be supplied to cause the control to enable all supported authentication methods in order of presumed security. The XMPP control currently supports the following values for AuthMethods, listed in order of most secure to least secure:

  • SASL/DIGEST-MD5
  • AuthIQ/Digest
  • SASL/CRAM-MD5
  • SASL/PLAIN
  • AuthIQ/Plaintext
  • SASL/NTLM

Data Type

String

BuddyCount Property (XMPP Control)

The number of records in the Buddy arrays.

Syntax

xmppcontrol.BuddyCount

Default Value

0

Remarks

This property controls the size of the following arrays:

The array indices start at 0 and end at BuddyCount - 1.

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

Data Type

Integer

BuddyGroup Property (XMPP Control)

This is a comma-separated list of the buddy's associated groups.

Syntax

xmppcontrol.BuddyGroup(BuddyIndex)[=string]

Default Value

""

Remarks

This is a comma-separated list of the buddy's associated groups.

After the Sync event has fired, this property will contain a comma-separated list of groups for the associated BuddyId. Changing this value will cause the buddy's group associations to change. Setting it to the empty string ("") will cause the buddy to be completely disassociated from all groups.

Note: It is recommended to use the UpdateBuddyGroup method instead of setting this property.

The BuddyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the BuddyCount property.

This property is not available at design time.

Data Type

String

BuddyId Property (XMPP Control)

This is the jabber id of the buddy.

Syntax

xmppcontrol.BuddyId(BuddyIndex)

Default Value

""

Remarks

This is the jabber id of the buddy.

After a Sync event is fired, this property will contain the user id associated with the corresponding entry in the buddy list. If a buddy has multiple entries (e.g., if the buddy is listed in several groups) more than one entry will be the same.

The BuddyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the BuddyCount property.

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

Data Type

String

BuddyNickName Property (XMPP Control)

The nickname of the buddy, if one exists.

Syntax

xmppcontrol.BuddyNickName(BuddyIndex)[=string]

Default Value

""

Remarks

The nickname of the buddy, if one exists.

The BuddyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the BuddyCount property.

This property is not available at design time.

Data Type

String

BuddyRealName Property (XMPP Control)

The real name of the buddy.

Syntax

xmppcontrol.BuddyRealName(BuddyIndex)

Default Value

""

Remarks

The real name of the buddy.

The BuddyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the BuddyCount property.

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

Data Type

String

BuddySubscription Property (XMPP Control)

This is a list of the subscription status for the buddy.

Syntax

xmppcontrol.BuddySubscription(BuddyIndex)

Possible Values

stNone(0), 
stTo(1), 
stFrom(2), 
stBoth(3), 
stRemove(4)

Default Value

0

Remarks

This is a list of the subscription status for the buddy.

After a Sync event is fired, this property will contain all of the types of subscriptions for the buddy. They are defined as follows:

stNone (0) no subscription
stTo (1) the buddy has a subscription to this entity.
stFrom (2) this entity has a subscription to the buddy
stBoth (3) subscription is both to and from
stRemove (4) the item is to be removed from the list

The BuddyIndex parameter specifies the index of the item in the array. The size of the array is controlled by the BuddyCount property.

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

Data Type

Integer

Connected Property (XMPP Control)

This indicates the control's login status.

Syntax

xmppcontrol.Connected[=boolean]

Default Value

False

Remarks

This value shows whether or not the control has successfully logged into the IMServer. It will not be true until a successful Connected event has fired.

Note: It is recommended to use the Connect or Disconnect method instead of setting this property.

This property is not available at design time.

Data Type

Boolean

FirewallAutoDetect Property (XMPP Control)

This property tells the control whether or not to automatically detect and use firewall system settings, if available.

Syntax

xmppcontrol.FirewallAutoDetect[=boolean]

Default Value

False

Remarks

This property tells the control whether or not to automatically detect and use firewall system settings, if available.

Data Type

Boolean

FirewallType Property (XMPP Control)

This property determines the type of firewall to connect through.

Syntax

xmppcontrol.FirewallType[=integer]

Possible Values

fwNone(0), 
fwTunnel(1), 
fwSOCKS4(2), 
fwSOCKS5(3), 
fwSOCKS4A(10)

Default Value

0

Remarks

This property determines 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. FirewallPort is set to 80.
fwSOCKS4 (2)Connect through a SOCKS4 Proxy. FirewallPort is set to 1080.
fwSOCKS5 (3)Connect through a SOCKS5 Proxy. FirewallPort is set to 1080.
fwSOCKS4A (10)Connect through a SOCKS4A Proxy. FirewallPort is set to 1080.

Data Type

Integer

FirewallHost Property (XMPP Control)

This property contains the name or IP address of firewall (optional).

Syntax

xmppcontrol.FirewallHost[=string]

Default Value

""

Remarks

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

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

Data Type

String

FirewallPassword Property (XMPP Control)

This property contains a password if authentication is to be used when connecting through the firewall.

Syntax

xmppcontrol.FirewallPassword[=string]

Default Value

""

Remarks

This property contains a password if authentication is to be used when connecting through the firewall. If FirewallHost is specified, the FirewallUser and FirewallPassword properties are used to connect and authenticate to the given firewall. If the authentication fails, the control fails with an error.

Data Type

String

FirewallPort Property (XMPP Control)

This property contains the transmission control protocol (TCP) port for the firewall Host .

Syntax

xmppcontrol.FirewallPort[=integer]

Default Value

0

Remarks

This property contains the transmission control protocol (TCP) port for the firewall FirewallHost. See the description of the FirewallHost property for details.

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

Data Type

Integer

FirewallUser Property (XMPP Control)

This property contains a user name if authentication is to be used connecting through a firewall.

Syntax

xmppcontrol.FirewallUser[=string]

Default Value

""

Remarks

This property contains a user name if authentication is to be used connecting through a firewall. If the FirewallHost is specified, this property and FirewallPassword properties are used to connect and authenticate to the given Firewall. If the authentication fails, the control fails with an error.

Data Type

String

IMPort Property (XMPP Control)

The server port for XMPP (default 5222).

Syntax

xmppcontrol.IMPort[=integer]

Default Value

5222

Remarks

For implicit SSL, use port 5223 (please refer to the SSLStartMode property for more information).

A valid port number (a value between 1 and 65535) is required for the connection to take place. The property must be set before a connection is attempted and cannot be changed once a connection is established. Any attempt to change this property while connected will fail with an error.

Data Type

Integer

IMServer Property (XMPP Control)

This is the instant messaging server.

Syntax

xmppcontrol.IMServer[=string]

Default Value

""

Remarks

This is the instant messaging server to which the control will connect when the Connect method is called. The IMServer property must contain a valid XMPP (Jabber) server, or any subsequent calls to the Connect method will fail.

Data Type

String

LocalDirectory Property (XMPP Control)

The directory to which received files are saved.

Syntax

xmppcontrol.LocalDirectory[=string]

Default Value

""

Remarks

This setting specifies the directory on disk to which received files will be saved. If this property is not set and a file is received the file data will be available through the Transfer event parameters. This property may also be set when the StartTransfer event fires.

Data Type

String

LocalFile Property (XMPP Control)

The path to the file that will be sent.

Syntax

xmppcontrol.LocalFile[=string]

Default Value

""

Remarks

This property specifies the local file that will be sent when calling SendFile. This property must be set before calling SendFile.

Data Type

String

LocalHost Property (XMPP Control)

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

Syntax

xmppcontrol.LocalHost[=string]

Default Value

""

Remarks

The LocalHost property contains the name of the local host as obtained by the gethostname() system call, or if the user has assigned an IP address, the value of that address.

In multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the control initiate connections (or accept in the case of server controls) only through that interface.

If the control is connected, the LocalHost property shows the IP address of the interface through which the connection is made in internet dotted format (aaa.bbb.ccc.ddd). In most cases, this is the address of the local host, except for multi-homed hosts (machines with more than one IP interface).

NOTE: LocalHost is not persistent. You must always set it in code, and never in the property window.

Data Type

String

MessageHTML Property (XMPP Control)

This is the HTML version of the current message.

Syntax

xmppcontrol.MessageHTML[=string]

Default Value

""

Remarks

If the user wishes to send any HTML as a part of the message, it must be set in the MessageHTML property. The HTML must be an entire HTML document, including the <html> and <body> tags. If the HTML has unbalanced tags, the XMPP control will fail with an error.

This property is not available at design time.

Data Type

String

MessageOtherData Property (XMPP Control)

This property contains extra data elements for the current message.

Syntax

xmppcontrol.MessageOtherData[=string]

Default Value

""

Remarks

MessageOtherData will contain zero or more complete XML elements associated with the message, but which are not defined in the Jabber specification.

Data Type

String

MessageSubject Property (XMPP Control)

This is the subject of the current message.

Syntax

xmppcontrol.MessageSubject[=string]

Default Value

""

Remarks

MessageSubject will contain any subject associated with the message. Most Jabber clients will ignore the subject unless the message is of type "headline".

This property is not available at design time.

Data Type

String

MessageText Property (XMPP Control)

This is the plain text of the current message.

Syntax

xmppcontrol.MessageText[=string]

Default Value

""

Remarks

MessageText is the plain text version of the current message, taken from the message's "body" child element. The text in this property is automatically escaped to ensure valid XML parsing on the other end.

This property is not available at design time.

Data Type

String

MessageThread Property (XMPP Control)

This is the thread name of the current message.

Syntax

xmppcontrol.MessageThread[=string]

Default Value

""

Remarks

MessageThread will contain the name of the thread associated with the message. Threads are useful for tracking messages of type "chat" or "groupchat".

This property is not available at design time.

Data Type

String

MessageType Property (XMPP Control)

This is the type of the current message.

Syntax

xmppcontrol.MessageType[=integer]

Possible Values

jmtNormal(0), 
jmtChat(1), 
jmtGroupChat(2), 
jmtHeadline(3), 
jmtError(4)

Default Value

0

Remarks

MessageType is the type of the message as specified in the XMPP RFC. The possible values are defined in the protocol specification as follows:

normal (jmtNormal - 0)A single message.
chat (jmtChat - 1)A message sent in the context of two-way chat between two entities.
groupchat (jmtGroupChat - 2)A message sent in the context of multi-user chat among multiple entities.
headline (jmtHeadline - 3)A message that represents one of a list of items (e.g., in a news feed or information ticker).
error (jmtError - 4)A message returned to a sender specifying an error associated with a previous message sent by the sender to an intended recipient.

This property is not available at design time.

Data Type

Integer

Password Property (XMPP Control)

This is the user's password.

Syntax

xmppcontrol.Password[=string]

Default Value

""

Remarks

This must be set before a connection is attempted. If a call to the Connect method is made specifying a password, the Password property will contain that password.

Data Type

String

Presence Property (XMPP Control)

This is the availability of the entity.

Syntax

xmppcontrol.Presence[=integer]

Possible Values

pcOffline(0), 
pcChat(1), 
pcAway(2), 
pcXA(3), 
pcDND(4)

Default Value

1

Remarks

When the control completes the initial log in, it will send information telling other entities subscribed to this entity's presence that it is online. The application must provide different status and availability information as the user changes them.

The Presence property has one of four values representing general information about the user's status as defined in the Jabber protocol specification:

pcOffline (0)Invisible: JabberId is offline.
pcChat (1)Available: JabberId is online.
pcAway (2)Away: JabberId is online, but the user is away from their computer.
pcXA (3)Extended Away: JabberId is online, but the user is away from their computer for an extended period of time.
pcDND (4)Do not Disturb: JabberId is online, but is busy and does not wish to be disturbed.

By default, the control sets the client presence to pcChat, meaning that the user is available. To change the initial status sent by the control set Presence to the desired presence before calling Connect.

Note: offline is not officially supported by the XMPP specification, however some XMPP server implementations may recognize the value. Setting the client's presence state to this value may cause the server to respond with an Error.

The Status property is a pure-text string representing the user's presence information. Its value maybe be any random string, including the empty string, "".

Whenever the value in Presence or Status are changed, the control will send that information to the server. If the application or user wishes to associate a specific status message with a new presence value, it should use the ChangePresence method. ChangePresence will update both the Presence and Status properties, and then send that information to the server.

Note: It is recommended to use the ChangePresence method instead of setting this property.

This property is not available at design time.

Data Type

Integer

Resource Property (XMPP Control)

This is the resource for the current session.

Syntax

xmppcontrol.Resource[=string]

Default Value

"IPWorks XMPP Agent"

Remarks

Whenever an entity logs in to an XMPP (Jabber) server, it must provide account information as well as a resource. Resources allow multiple clients to log in using the same account. The server will forward all messages and PI data aimed at a specific resource to that resource. If a command or message is to be sent to a Jabber ID with no specified resource, the server will push that command or message out to all connected resources.

Data Type

String

ServerDomain Property (XMPP Control)

The XMPP server's domain.

Syntax

xmppcontrol.ServerDomain[=string]

Default Value

""

Remarks

The domain of the XMPP server itself. Set this value if the domain of the server is different from the DNS name of the IMServer.

Data Type

String

SSLAcceptServerCertEncoded Property (XMPP Control)

This is the certificate (PEM/base64 encoded).

Syntax

xmppcontrol.SSLAcceptServerCertEncoded[=string]

Default Value

""

Remarks

This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The SSLAcceptServerCertStore and SSLAcceptServerCertSubject properties also may be used to specify a certificate.

When SSLAcceptServerCertEncoded is set, a search is initiated in the current SSLAcceptServerCertStore for the private key of the certificate. If the key is found, SSLAcceptServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLAcceptServerCertSubject is set to an empty string.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLAcceptServerCertEncodedB.

This property is not available at design time.

Data Type

Binary String

SSLCertEncoded Property (XMPP Control)

This is the certificate (PEM/base64 encoded).

Syntax

xmppcontrol.SSLCertEncoded[=string]

Default Value

""

Remarks

This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The SSLCertStore and SSLCertSubject properties also may be used to specify a certificate.

When SSLCertEncoded is set, a search is initiated in the current SSLCertStore for the private key of the certificate. If the key is found, SSLCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLCertSubject is set to an empty string.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLCertEncodedB.

This property is not available at design time.

Data Type

Binary String

SSLCertStore Property (XMPP Control)

This is the name of the certificate store for the client certificate.

Syntax

xmppcontrol.SSLCertStore[=string]

Default Value

"MY"

Remarks

This is the name of the certificate store for the client certificate.

The SSLCertStoreType property denotes the type of the certificate store specified by SSLCertStore. If the store is password protected, specify the password in SSLCertStorePassword.

SSLCertStore is used in conjunction with the SSLCertSubject property to specify client certificates. If SSLCertStore has a value, and SSLCertSubject or SSLCertEncoded is set, a search for a certificate is initiated. Please see the SSLCertSubject property for details.

Designations of certificate stores are platform-dependent.

The following are designations of the most common User and Machine certificate stores in Windows:

MYA certificate store holding personal certificates with their associated private keys.
CACertifying authority certificates.
ROOTRoot certificates.

When the certificate store type is PFXFile, this property must be set to the name of the file. When the type is PFXBlob, the property must be set to the binary contents of a PFX file (i.e. PKCS12 certificate store).

To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLCertStoreB.

Data Type

Binary String

SSLCertStorePassword Property (XMPP Control)

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

Syntax

xmppcontrol.SSLCertStorePassword[=string]

Default Value

""

Remarks

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

Data Type

String

SSLCertStoreType Property (XMPP Control)

This is the type of certificate store for this certificate.

Syntax

xmppcontrol.SSLCertStoreType[=integer]

Possible Values

cstUser(0), 
cstMachine(1), 
cstPFXFile(2), 
cstPFXBlob(3), 
cstJKSFile(4), 
cstJKSBlob(5), 
cstPEMKeyFile(6), 
cstPEMKeyBlob(7), 
cstPublicKeyFile(8), 
cstPublicKeyBlob(9), 
cstSSHPublicKeyBlob(10), 
cstP7BFile(11), 
cstP7BBlob(12), 
cstSSHPublicKeyFile(13), 
cstPPKFile(14), 
cstPPKBlob(15), 
cstXMLFile(16), 
cstXMLBlob(17), 
cstJWKFile(18), 
cstJWKBlob(19), 
cstSecurityKey(20), 
cstBCFKSFile(21), 
cstBCFKSBlob(22), 
cstPKCS11(23), 
cstAuto(99)

Default Value

0

Remarks

This is the type of certificate store for this certificate.

The control supports both public and private keys in a variety of formats. When the cstAuto value is used the control will automatically determine the type. This property 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 (PKCS12) file containing certificates.
3 (cstPFXBlob)The certificate store is a string (binary or base64-encoded) representing a certificate store in PFX (PKCS12) 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 PKCS7 file containing certificates.
12 (cstP7BBlob)The certificate store is a string (binary) representing a certificate store in PKCS7 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 PKCS11 interface.

To use a security key the necessary data must first be collected using the CertMgr control. The ListStoreCertificates method may be called after setting CertStoreType to cstPKCS11, CertStorePassword to the PIN, and CertStore to the full path of the PKCS11 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 SSLCertStore and set SSLCertStorePassword 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.

Data Type

Integer

SSLCertSubject Property (XMPP Control)

This is the subject of the certificate used for client authentication.

Syntax

xmppcontrol.SSLCertSubject[=string]

Default Value

""

Remarks

This is 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 property 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 displayed below.

FieldMeaning
CNCommon Name. This is commonly a host name like www.server.com.
OOrganization
OUOrganizational Unit
LLocality
SState
CCountry
EEmail Address

If a field value contains a comma it must be quoted.

Data Type

String

SSLEnabled Property (XMPP Control)

Whether TLS/SSL is enabled.

Syntax

xmppcontrol.SSLEnabled[=boolean]

Default Value

False

Remarks

This setting specifies whether TLS/SSL is enabled in the control. When False (default) the control operates in plaintext mode. When True TLS/SSL is enabled.

TLS/SSL may also be enabled by setting SSLStartMode. Setting SSLStartMode will automatically update this property value.

This property is not available at design time.

Data Type

Boolean

SSLProvider Property (XMPP Control)

This specifies the SSL/TLS implementation to use.

Syntax

xmppcontrol.SSLProvider[=integer]

Possible Values

sslpAutomatic(0), 
sslpPlatform(1), 
sslpInternal(2)

Default Value

0

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 control 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:

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 control will select a provider depending on the current platform.

When Automatic is selected the platform implementation is used by default. When TLS 1.3 is enabled via SSLEnabledProtocols the internal implementation is used.

Data Type

Integer

SSLServerCertEncoded Property (XMPP Control)

This is the certificate (PEM/base64 encoded).

Syntax

xmppcontrol.SSLServerCertEncoded

Default Value

""

Remarks

This is the certificate (PEM/base64 encoded). This property is used to assign a specific certificate. The SSLServerCertStore and SSLServerCertSubject properties also may be used to specify a certificate.

When SSLServerCertEncoded is set, a search is initiated in the current SSLServerCertStore for the private key of the certificate. If the key is found, SSLServerCertSubject is updated to reflect the full subject of the selected certificate; otherwise, SSLServerCertSubject is set to an empty string.

To read or write binary data to the property, a Variant (Byte Array) version is provided in .SSLServerCertEncodedB.

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

Data Type

Binary String

SSLStartMode Property (XMPP Control)

Determines how the control starts the SSL negotiation.

Syntax

xmppcontrol.SSLStartMode[=integer]

Possible Values

sslAutomatic(0), 
sslImplicit(1), 
sslExplicit(2), 
sslNone(3)

Default Value

3

Remarks

The SSLStartMode property may have one of the following values:

0 (sslAutomatic)If the remote port is set to the standard plaintext port of the protocol (where applicable), the control will behave the same as if SSLStartMode is set to sslExplicit. In all other cases, SSL negotiation will be implicit (sslImplicit).
1 (sslImplicit)The SSL negotiation will start immediately after the connection is established.
2 (sslExplicit)The control will first connect in plaintext, and then explicitly start SSL negotiation through a protocol command such as STARTTLS.
3 (sslNone - default)No SSL negotiation, no SSL security. All communication will be in plaintext mode.

Data Type

Integer

Status Property (XMPP Control)

Description of the availability of this entity.

Syntax

xmppcontrol.Status[=string]

Default Value

"Available for Chat."

Remarks

When the control completes the initial log in, it will send information telling other entities subscribed to this entity's presence that it is online. The application must provide different status and availability information as the user changes them.

The Presence property has one of four values representing general information about the user's status as defined in the Jabber protocol specification:

pcOffline (0)Invisible: JabberId is offline.
pcChat (1)Available: JabberId is online.
pcAway (2)Away: JabberId is online, but the user is away from their computer.
pcXA (3)Extended Away: JabberId is online, but the user is away from their computer for an extended period of time.
pcDND (4)Do not Disturb: JabberId is online, but is busy and does not wish to be disturbed.

By default, the control sets the client presence to pcChat, meaning that the user is available. To change the initial status sent by the control set Presence to the desired presence before calling Connect.

Note: offline is not officially supported by the XMPP specification, however some XMPP server implementations may recognize the value. Setting the client's presence state to this value may cause the server to respond with an Error.

The Status property is a pure-text string representing the user's presence information. Its value maybe be any random string, including the empty string, "".

Whenever the value in Presence or Status are changed, the control will send that information to the server. If the application or user wishes to associate a specific status message with a new presence value, it should use the ChangePresence method. ChangePresence will update both the Presence and Status properties, and then send that information to the server.

Note: It is recommended to use the ChangePresence method instead of setting this property.

This property is not available at design time.

Data Type

String

Timeout Property (XMPP Control)

A timeout for the control.

Syntax

xmppcontrol.Timeout[=integer]

Default Value

60

Remarks

If the Timeout property is set to 0, all operations will run uninterrupted until successful completion or an error condition is encountered.

If Timeout is set to a positive value, the control will wait for the operation to complete before returning control.

The control 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 control fails with an error.

Please note that by default, all timeouts are inactivity timeouts, i.e. the timeout period is extended by Timeout seconds when any amount of data is successfully sent or received.

The default value for the Timeout property is 60 seconds.

Data Type

Integer

User Property (XMPP Control)

The user portion of this entity's Jabber ID.

Syntax

xmppcontrol.User[=string]

Default Value

""

Remarks

The User property is a unique username associated with this entity and set at time of registration under the field "user".

Data Type

String

UserDomain Property (XMPP Control)

Gets or sets the domain value used for Jabber IDs.

Syntax

xmppcontrol.UserDomain[=string]

Default Value

""

Remarks

A Jabber ID (JID) is a unique identifier of the format "User@Domain/Resource". user@domain denotes the account by username and domain. The Resource is given during the login process to distinguish individual connections under the same account. If the IMServer contains multiple domains, this property setting allows the user to specify the domain under which to login.

If Domain is empty, the value in IMServer is used by default when creating the client's JID.

Data Type

String

UserInfoCount Property (XMPP Control)

The number of records in the UserInfo arrays.

Syntax

xmppcontrol.UserInfoCount[=integer]

Default Value

0

Remarks

This property controls the size of the following arrays:

The array indices start at 0 and end at UserInfoCount - 1.

This property is not available at design time.

Data Type

Integer

UserInfoField Property (XMPP Control)

This is the name of the current property necessary for registration.

Syntax

xmppcontrol.UserInfoField(FieldIndex)[=string]

Default Value

""

Remarks

This is the name of the current property necessary for registration.

Before a registration can be attempted, the application should use the QueryRegister method to poll the host to which the user wishes to register. This will gather all of the necessary fields that the user must send to the server, and will populate the UserInfo properties accordingly. After a successful query, all entries in UserInfo values will be empty strings.

The possible registration fields are defined in the Jabber protocol specification as follows:

instructionsSpecial instructions sent from the server.
usernameThe username to be associated with this account.
passwordThe initial password for this account.
nameThe user's name.
emailThe user's email address.
addressThe user's physical address.
cityThe user's city of residence.
stateThe user's state (for United States citizens).
zipThe user's postal code (for United States citizens).
phoneThe user's phone number.
URLThe user's website.
dateThe date of registration.
miscAny miscellaneous data.
textAny extra text (potentially for a personal bio).
removeSpecifies a request to unregister.

After the user has set all of the values in UserInfo, and added any extra fields they may wish to include in their registration, the application should make a call to Register.

If the control is not already connected when this method is called, it will connect, poll the registration fields, and then disconnect.

The FieldIndex parameter specifies the index of the item in the array. The size of the array is controlled by the UserInfoCount property.

This property is not available at design time.

Data Type

String

UserInfoValue Property (XMPP Control)

This is the value for the current registration property, and should be set after calling QueryRegister and before calling Register .

Syntax

xmppcontrol.UserInfoValue(FieldIndex)[=string]

Default Value

""

Remarks

This is the value for the current registration field, and should be set after calling QueryRegister and before calling Register.

Before a registration can be attempted, the application should use the QueryRegister method to poll the host to which the user wishes to register. This will gather all of the necessary fields that the user must send to the server, and will populate the UserInfo properties accordingly. After a successful query, all entries in UserInfo values will be empty strings.

The possible registration fields are defined in the Jabber protocol specification as follows:

instructionsSpecial instructions sent from the server.
usernameThe username to be associated with this account.
passwordThe initial password for this account.
nameThe user's name.
emailThe user's email address.
addressThe user's physical address.
cityThe user's city of residence.
stateThe user's state (for United States citizens).
zipThe user's postal code (for United States citizens).
phoneThe user's phone number.
URLThe user's website.
dateThe date of registration.
miscAny miscellaneous data.
textAny extra text (potentially for a personal bio).
removeSpecifies a request to unregister.

After the user has set all of the values in UserInfo, and added any extra fields they may wish to include in their registration, the application should make a call to Register.

If the control is not already connected when this method is called, it will connect, poll the registration fields, and then disconnect.

The FieldIndex parameter specifies the index of the item in the array. The size of the array is controlled by the UserInfoCount property.

This property is not available at design time.

Data Type

String

Add Method (XMPP Control)

This method will add an entity to this entity's roster.

Syntax

xmppcontrol.Add JabberId, Name, Groups

Remarks

JabberId is the Jabber ID of the entity to be added. It should be of form "user@host". If no hostname is specified, the control will assume the user's account is with the server in IMServer, and will append that hostname to JabberId before sending the request.

Name will contain the name that is to be associated with JabberId in this entity's roster. It may be the empty string, "".

Groups is either the empty string ("") or a comma- separated list of groups to which JabberId is to be added. If JabberId already exists in the buddy list, it will be updated to exist only in the specified groups. A buddy's group list can also be modified by the Buddies property.

The Add method will make a subscription request to the presence of the specified JabberId. Upon receiving this request, the server will add an entry into this user's buddy list with a subscription of type subscriptionNone (0) if there was no previous entry (if this user has already allowed JabberId to subscribe to this user's presence, there will already be an entry of type subscriptionFrom (2)). If the contact chooses to allow the subscription, the server will update the entry and a BuddyUpdate event will fire with the new subscription value (subscriptionTo (1) if this is a new contact, or subscriptionBoth (3) if the contact is now mutual).

The XMPP protocol permits XMPP (Jabber) clients to communicate with foreign IM networks such as AIM, MSN, SMS, and others through the use of gateway servers that translate between the foreign protocol and XMPP. When sending or receiving presence information, messages, or subscription requests, Domain will be a gateway for the foreign network on which the contact resides and with which this user has registered an account for that foreign network. The Register method can be used to register with a foreign network gateway.

Cancel Method (XMPP Control)

This will cancel another entity's subscription to this entity's presence.

Syntax

xmppcontrol.Cancel JabberId

Remarks

If for any reason the user should want to undo a previously granted subscription, this can be achieved through the Cancel method. The method will unsubscribe the target from this user's presence, thus preventing the target from seeing this user in the future.

ChangePassword Method (XMPP Control)

This method will change the current user's password.

Syntax

xmppcontrol.ChangePassword Password

Remarks

This method changes the current user's password to the password that is specified. The control must be connected to the server when this method is called.

ChangePresence Method (XMPP Control)

This method will set the availability and status of this entity.

Syntax

xmppcontrol.ChangePresence PresenceCode, Status

Remarks

PresenceCode should correspond the possible values of the Presence property:

pcOffline (0)Invisible: JabberId is offline.
pcChat (1)Available: JabberId is online.
pcAway (2)Away: JabberId is online, but the user is away from their computer.
pcXA (3)Extended Away: JabberId is online, but the user is away from their computer for an extended period of time.
pcDND (4)Do not Disturb: JabberId is online, but is busy and does not wish to be disturbed.

By default, the control sets the client presence to pcChat, meaning that the user is available. To change the initial status sent by the control set Presence to the desired presence before calling Connect.

Note: offline is not officially supported by the XMPP specification, however some XMPP server implementations may recognize the value. Setting the client's presence state to this value may cause the server to respond with an Error.

Status can be any random string, including the empty string "".

Config Method (XMPP Control)

Sets or retrieves a configuration setting.

Syntax

xmppcontrol.Config ConfigurationString

Remarks

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

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

Connect Method (XMPP Control)

This method will connect the control to the server.

Syntax

xmppcontrol.Connect 

Remarks

The Connect method performs the entire connection routine. This includes connection to the IMServer, authenticating with the specified User and Password, and session initialization.

The Connected event will fire once for the initial TCP connection and again when the XMPP Logon is complete.

ConnectTo Method (XMPP Control)

This method will connect the control to the server.

Syntax

xmppcontrol.ConnectTo User, Password

Remarks

The ConnectTo method performs the entire connection routine. This includes connection to the IMServer, user logon and authentication, and session initialization.

The Connected event will fire once for the initial TCP connection and again when the XMPP Logon is complete.

Since ConnectTo is called with a user and password specified, the User and Password properties will updated accordingly.

Disconnect Method (XMPP Control)

This method disconnects the control from the server.

Syntax

xmppcontrol.Disconnect 

Remarks

The Disconnect method will send the disconnect command to the notification server. Upon disconnection, a Disconnected event will be fired.

DoEvents Method (XMPP Control)

This method processes events from the internal message queue.

Syntax

xmppcontrol.DoEvents 

Remarks

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

Interrupt Method (XMPP Control)

Interrupt the current method.

Syntax

xmppcontrol.Interrupt 

Remarks

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

ProbePresence Method (XMPP Control)

Use this method to probe for another entity's presence.

Syntax

xmppcontrol.ProbePresence JabberId

Remarks

In the case that the user needs to update a particular entity's presence this method can be used to retrieve it. After a successful call, the server will either respond with the last known presence for Jabber, or will send a presence element of type "error". In either case, the respond will be returned by a Presence event.

QueryRegister Method (XMPP Control)

This method queries a server for the necessary registration fields.

Syntax

xmppcontrol.QueryRegister XMPPServer

Remarks

Before a registration can be attempted, the application should use the QueryRegister method to poll the host to which the user wishes to register. This will gather all of the necessary fields that the user must send to the server, and will populate the UserInfo properties accordingly. After a successful query, all entries in UserInfo values will be empty strings.

The possible registration fields are defined in the Jabber protocol specification as follows:

instructionsSpecial instructions sent from the server.
usernameThe username to be associated with this account.
passwordThe initial password for this account.
nameThe user's name.
emailThe user's email address.
addressThe user's physical address.
cityThe user's city of residence.
stateThe user's state (for United States citizens).
zipThe user's postal code (for United States citizens).
phoneThe user's phone number.
URLThe user's website.
dateThe date of registration.
miscAny miscellaneous data.
textAny extra text (potentially for a personal bio).
removeSpecifies a request to unregister.

After the user has set all of the values in UserInfo, and added any extra fields they may wish to include in their registration, the application should make a call to Register.

If the control is not already connected when this method is called, it will connect, poll the registration fields, and then disconnect.

Register Method (XMPP Control)

This method registers an account with a server.

Syntax

xmppcontrol.Register XMPPServer

Remarks

Before a registration can be attempted, the application should use the QueryRegister method to poll the host to which the user wishes to register. This will gather all of the necessary fields that the user must send to the server, and will populate the UserInfo properties accordingly. After a successful query, all entries in UserInfo values will be empty strings.

The possible registration fields are defined in the Jabber protocol specification as follows:

instructionsSpecial instructions sent from the server.
usernameThe username to be associated with this account.
passwordThe initial password for this account.
nameThe user's name.
emailThe user's email address.
addressThe user's physical address.
cityThe user's city of residence.
stateThe user's state (for United States citizens).
zipThe user's postal code (for United States citizens).
phoneThe user's phone number.
URLThe user's website.
dateThe date of registration.
miscAny miscellaneous data.
textAny extra text (potentially for a personal bio).
removeSpecifies a request to unregister.

After the user has set all of the values in UserInfo, and added any extra fields they may wish to include in their registration, the application should make a call to Register.

If the control is not already connected when this method is called, it will connect, poll the registration fields, and then disconnect.

A new account can be registered at any time, including while the control is logged into the host under an existing account.

Remove Method (XMPP Control)

This method will remove an entity from this entity's roster.

Syntax

xmppcontrol.Remove JabberId, Name, Group

Remarks

JabberId is the Jabber ID of the entity to be removed. It should be of form "user@host". If no hostname is specified, the control will assume the user's account is with the server in IMServer, and will append that hostname to JabberId before sending the request.

Name should contain the name that is to be associated with JabberId in this entity's roster. It may be the empty string, "".

Groups may be either the empty string ("") or a comma- separated list of groups from which JabberId is to be removed. If no group is specified, the buddy will be completely removed from the buddy list.

After calling the Remove method, the server will remove the entry from the server-side roster, and will push the result out to all connected resources. A BuddyUpdate event will fire with subscription of type subscriptionRemove, and the entry will be removed from the Jabber control's internally stored list.

Reset Method (XMPP Control)

Reset the control.

Syntax

xmppcontrol.Reset 

Remarks

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

RetrieveRoster Method (XMPP Control)

This method will retrieve this entity's roster from the server.

Syntax

xmppcontrol.RetrieveRoster 

Remarks

After the control connects, it will automatically send a request to the server to retrieve the roster. However, should the user or application wish to update the entire roster, this method may be used to do so.

After a successful call to the RetrieveRoster method, the server will respond with this entity's roster. The control will parse the roster and fire the Sync event once per item. This event may also fire for each entity added to or removed from the roster.

SendCommand Method (XMPP Control)

This method sends a command to the server.

Syntax

xmppcontrol.SendCommand Command

Remarks

The SendCommand method will send the Command parameter to the server. The command must be in valid XML format, and must be recognizable to the IMServer.

The SendCommand method should only be used by programmers or users who are connecting to non-standard servers whose command list is not covered by the control. Any responses that are defined in the protocol specification will be returned by the appropriate event. Any non-standard IQ message will be returned by the IQ event. All other responses will be returned by the PITrail event.

SendFile Method (XMPP Control)

Sends a file to the specified user.

Syntax

xmppcontrol.SendFile JabberId

Remarks

This method sends the file specified by LocalFile to the user specified by the JabberId parameter.

JabberId is the intended recipient of the message. It is of the form user@domain/resource. If a resource is not supplied, all logged-in instances of the user's account will receive the message.

The control supports sending files using In-Band Bystestreams as defined in XEP-0047 and XEP-0096.

SendMessage Method (XMPP Control)

This method will send a message to the specified user.

Syntax

xmppcontrol.SendMessage JabberId

Remarks

JabberId is the intended recipient of the message. It is of the form user@domain/resource. If a resource is not supplied, all logged-in instances of the user's account will receive the message.

The control associates several properties with messages it receives and sends. When it receives a message, the control will parse out the corresponding values and set these properties before firing a MessageIn event. After the event returns control to the control, the properties will be cleared (ie, they will be set to the empty string, "").

Before sending a message, the application should set the appropriate properties to be associated with the message. The control will send only properties with non-empty string values (""), and will clear all properties after a successful send.

The associated properties are the following:

MessageTypethe type of the message to be sent
MessageSubjectfor "headline" type messages, this is the subject
MessageThreadfor "chat" type messages, this is the thread on which the current message is a follow-up
MessageTextthe plain text of the message
MessageHTMLthe HTML version of the message
MessageOtherDataany extra data associated with the message but not required by the protocol.

If the parameter passed to SendMessage is prefixed with "@" the component will interpret the value as a domain when constructing the message. This allows for sending directly to sub-domains.

Note: the XMPP control will generate and return a unique identifier for each message sent. This identifier can be used to track messages in conjunction with various Jabber Extension Protocols.

SetUserInfoField Method (XMPP Control)

This method will add a user information field for registration.

Syntax

xmppcontrol.SetUserInfoField Field, Value

Remarks

This method will search through UserInfo for the field name in Field and set the corresponding value to Value. If the field was not previously contained in UserInfo, it will automatically added.

Before a registration can be attempted, the application should use the QueryRegister method to poll the host to which the user wishes to register. This will gather all of the necessary fields that the user must send to the server, and will populate the UserInfo properties accordingly. After a successful query, all entries in UserInfo values will be empty strings.

The possible registration fields are defined in the Jabber protocol specification as follows:

instructionsSpecial instructions sent from the server.
usernameThe username to be associated with this account.
passwordThe initial password for this account.
nameThe user's name.
emailThe user's email address.
addressThe user's physical address.
cityThe user's city of residence.
stateThe user's state (for United States citizens).
zipThe user's postal code (for United States citizens).
phoneThe user's phone number.
URLThe user's website.
dateThe date of registration.
miscAny miscellaneous data.
textAny extra text (potentially for a personal bio).
removeSpecifies a request to unregister.

After the user has set all of the values in UserInfo, and added any extra fields they may wish to include in their registration, the application should make a call to Register.

If the control is not already connected when this method is called, it will connect, poll the registration fields, and then disconnect.

SubscribeTo Method (XMPP Control)

Use this method to subscribe to another entity's presence.

Syntax

xmppcontrol.SubscribeTo JabberId

Remarks

This method will send a request for a subscription to JabberId's presence. If the entity allows the subscription, a new item will be stored in the buddy list with the appropriate subscription type. Otherwise, no change will take place.

Unregister Method (XMPP Control)

This method cancels an account with the host.

Syntax

xmppcontrol.Unregister 

Remarks

If the user or application wishes to terminate an account with the IMServer it should make a call to this method. After a successful call, the account will be canceled and the control will be logged off the server, but not disconnected.

UnsubscribeTo Method (XMPP Control)

This method will cancel a subscription to another entity's presence.

Syntax

xmppcontrol.UnsubscribeTo JabberId

Remarks

This method will inform the server of the cancellation of subscription to JabberId's presence. After a successful call the subscription type of the associated buddy list item will be updated.

UpdateBuddyGroup Method (XMPP Control)

Updates the buddy's associatd groups.

Syntax

xmppcontrol.UpdateBuddyGroup BuddyIndex, Group

Remarks

This method updates the associated groups for the buddy specified by BuddyIndex.

After the Sync event has fired the BuddyGroup property is populated with a comma-separated list of groups for each buddy. To update the groups for a buddy call this method with the buddy's index and the comma-separate list of groups the buddy should be associated with. Setting Group to empty string ("") will cause the buddy to be completely disassociated from all groups.

BuddyUpdate Event (XMPP Control)

This event is fired whenever a roster entry is updated.

Syntax

Sub xmppcontrol_BuddyUpdate(BuddyIdx As Integer)

Remarks

The BuddyUpdate event will fire whenever a new buddy list entry is added or an old entry is updated. The updated information can be retrieved through the Buddies properties property. The BuddyIdx parameter of this event will be the index of that XMPPBuddy in the properties.

Connected Event (XMPP Control)

This event is fired when a connection to the IM Server is completed.

Syntax

Sub xmppcontrol_Connected(StatusCode As Integer, Description As String)

Remarks

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. The corresponding Visual Basic error code can be obtained by adding 15001 to this value.

Please refer to the Error Codes section for more information.

ConnectionStatus Event (XMPP Control)

This event is fired to indicate changes in the connection state.

Syntax

Sub xmppcontrol_ConnectionStatus(ConnectionEvent As String, StatusCode As Integer, Description As String)

Remarks

The ConnectionStatus event is fired when the connection state changes: for example, 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.
Secure Sockets Layer (SSL) or S/Shell handshake complete (where applicable).
Remote host connection complete.
Remote host disconnected.
SSL or S/Shell connection broken.
Firewall host disconnected.
StatusCode has the error code returned by the Transmission Control Protocol (TCP)/IP stack. Description contains a description of this code. The value of StatusCode is equal to the value of the error. The corresponding Visual Basic error code can be obtained by adding 15001 to this value.

Disconnected Event (XMPP Control)

This event is fired when the chat service connection is lost.

Syntax

Sub xmppcontrol_Disconnected(StatusCode As Integer, Description As String)

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 TCP/IP subsystem. Description contains a description of this code. The value of StatusCode is equal to the value of the TCP/IP error. The corresponding Visual Basic error code can be obtained by adding 15001 to this value.

Please refer to the Error Codes section for more information.

EndTransfer Event (XMPP Control)

Fired when a file transfer completes.

Syntax

Sub xmppcontrol_EndTransfer(Direction As Integer, FileId As String, Filename As String, Success As Boolean)

Remarks

When a file transfer completes this event will fire.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

Error Event (XMPP Control)

This event is fired when the server sends a protocol error message.

Syntax

Sub xmppcontrol_Error(ErrorCode As Integer, Description As String)

Remarks

This is fired whenever there is a protocol error. ErrorCode will contain the error code string sent by the server. Description will contain the Xmpp control's interpretation of the code.

IQ Event (XMPP Control)

This event is fired for IQ messages not normally supported by the control.

Syntax

Sub xmppcontrol_IQ(Iq As String, Id As String, From As String, IqType As String, Ignore As Boolean)

Remarks

Some servers may wish to gather some data from the client in ways not specified by the XMPP RFC. This event will contain any IQ message that is not a part of the Jabber specification. The Iq parameter will contain an entire XML entity, and thus will require both knowledge of XML and knowledge of the possible contents of the IQ message to parse. Id will contain the transaction id of the IQ message. From will contain the sender's Jabber ID. IqType will have one of the following values:

"get"The IQ is requesting information from this XMPP client.
"set"The IQ is attempting to set a value..
"result"The IQ is a success response to a previous IQ.
"error"The IQ is an error response to a previous IQ.

Note: to respond to these IQs, you may use the SendCommand method.

MessageIn Event (XMPP Control)

This event is fired upon receipt of a message.

Syntax

Sub xmppcontrol_MessageIn(MessageId As String, From As String, Domain As String, Resource As String, MessageType As Integer, Subject As String, MessageThread As String, MessageText As String, MessageHTML As String, Other As String)

Remarks

When a message is received, the XMPP control will parse the sender's Jabber ID into the From, Domain, and Resource fields. These parameters can be used to track the exact instance of a user's account that originated the message.

MessageId can be used with Jabber extension protocols. The MessageText parameter is the plaintext portion of the message body. MessageHTML will contain any HTML from the message.

Type the type of message received. See MessageType for a list of possible values. For message of type "headline", Subject will reflect the subject of the message. For messages of type "chat", Thread will report the conversation thread for which the current message is a follow-up.

Other will contains any extra data associated with the message but not defined by the XMPP-IM protocol.

PITrail Event (XMPP Control)

This event is fired for all protocol messages.

Syntax

Sub xmppcontrol_PITrail(Direction As Integer, Pi As String)

Remarks

The PITrail event is useful for debugging purposes. It shows all the interaction between the client and the server, line by line.

SessionId will hold the session number that originated the PI. A value of 0 is reserved for all PI dealing with the IMServer.

The direction parameter shows the originator of the message:

0 (Client)Pi originates from the client.
1 (Server)Pi originates from the server.
2 (Info)Pi is an informative message originating from within the control.

The Pi parameter contains the PI message.

Presence Event (XMPP Control)

This event is fired when the presence of a subscribed entity changes.

Syntax

Sub xmppcontrol_Presence(User As String, Domain As String, Resource As String, Availability As Integer, Status As String)

Remarks

This event contains the availability and status information of a particular Jabber entity to whom this entity has a subscription.

Because a user can log in multiple times using the same account, the XMPP control will parse the user's Jabber ID into the User, Domain and Resource parameters so that the client can easily track which instance of the account sent the presence.

The XMPP protocol permits XMPP (Jabber) clients to communicate with foreign IM networks such as AIM, MSN, SMS, and others through the use of gateway servers that translate between the foreign protocol and XMPP. When sending or receiving presence information, messages, or subscription requests, Domain will be a gateway for the foreign network on which the contact resides and with which this user has registered an account for that foreign network. The Register method can be used to register with a foreign network gateway.

Availability corresponds to the Presence property of the control, with the same possible values:

pcOffline (0)Invisible: JabberId is offline.
pcChat (1)Available: JabberId is online.
pcAway (2)Away: JabberId is online, but the user is away from their computer.
pcXA (3)Extended Away: JabberId is online, but the user is away from their computer for an extended period of time.
pcDND (4)Do not Disturb: JabberId is online, but is busy and does not wish to be disturbed.

By default, the control sets the client presence to pcChat, meaning that the user is available. To change the initial status sent by the control set Presence to the desired presence before calling Connect.

Note: offline is not officially supported by the XMPP specification, however some XMPP server implementations may recognize the value. Setting the client's presence state to this value may cause the server to respond with an Error.

Status corresponds to the Status property. This value may be any random string, including the empty string, "".

ReadyToSend Event (XMPP Control)

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

Syntax

Sub xmppcontrol_ReadyToSend()

Remarks

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

SSLServerAuthentication Event (XMPP Control)

Fired after the server presents its certificate to the client.

Syntax

Sub xmppcontrol_SSLServerAuthentication(CertEncoded As String, CertSubject As String, CertIssuer As String, Status As String, Accept As Boolean)

Remarks

This event is where the client can decide whether to continue with the connection process or not. 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 to continue or not.

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 (XMPP Control)

Shows the progress of the secure connection.

Syntax

Sub xmppcontrol_SSLStatus(Message As String)

Remarks

The event is fired for informational and logging purposes only. Used to track the progress of the connection.

StartTransfer Event (XMPP Control)

Fired when a file transfer begins.

Syntax

Sub xmppcontrol_StartTransfer(Direction As Integer, FileId As String, User As String, Domain As String, Resource As String, Filename As String, Datetime As String, Size As Long64, Accept As Boolean)

Remarks

When a file is received, the XMPP component will parse the sender's Jabber ID into the User, Domain, and Resource fields. The FileId and Filename parameters identify the current transfer. Within this event you may override the Filename by setting the Filename parameter. At this time you may also set LocalDirectory if it is not already set.

When a sending a file, the XMPP component will parse the receiver's Jabber ID into the User, Domain, and Resource fields.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

SubscriptionRequest Event (XMPP Control)

This event fires when a subscription request is received.

Syntax

Sub xmppcontrol_SubscriptionRequest(From As String, Domain As String, Accept As Boolean)

Remarks

This event fires whenever another XMPP entity requests a subscription to this entity's presence. The XMPP control will parse the requesting entity's Jabber ID into the From and Domain parameters. There is no need to know which resource sent the request, since all instances of the requesting entity's account have access to the same roster.

Accept will initially be false, but setting it to true will cause the XMPP control to allow the remote subscription. Otherwise, the XMPP control will actively deny the subscription request.

Sync Event (XMPP Control)

This event fires upon a complete information synchronization with the server.

Syntax

Sub xmppcontrol_Sync()

Remarks

The Sync event will fire after each successful call to the RetrieveRoster method. When the event fires, the buddy list, or roster, will be completely retrieved and the Buddies properties will be filled out accordingly:

Id the jabber ids associated with the buddies
Group the group associated with each entry (if a buddy is in more than one group, they will have multiple entries in the buddy list)
Subscription the subscription type for each buddy

Please refer to Buddies properties property for more information.

Transfer Event (XMPP Control)

Fired during file transfer.

Syntax

Sub xmppcontrol_Transfer(Direction As Integer, FileId As String, Filename As String, BytesTransferred As Long64, PercentDone As Integer, Text As String, Cancel As Boolean)

Remarks

This event will fire when sending or receiving. One or more Transfer events are fired during file transfer.

The BytesTransferred parameter shows the number of bytes transferred since the beginning of the transfer.

Text contains the portion of the file data being delivered.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.

The Direction parameter shows whether the client (0) or the server (1) is sending the data.

The PercentDone parameter shows the progress of the transfer in the corresponding direction. If PercentDone can not be calculated the value will be -1.

Note: Events are not re-entrant. Performing time-consuming operations within this event will prevent it from firing again in a timely manner and may affect overall performance.

Config Settings (XMPP Control)

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

XMPP Config Settings

AccessToken:   The OAuth access token used for authentication.

Specifies the OAuth access token used during authentication. This can be used when connecting to Facebook or Windows Live Messenger.

BlockSize:   Specifies the block size for file transfers.

The size in bytes of the block size used when sending files. The default value is 4096. Increasing this value may improve performance. However, some servers may not support larger block sizes.

ClientId:   The OAuth client Id used for authentication.

Specifies the OAuth client Id used during authentication. This can be used when connecting to Facebook. Windows Live Messenger does not require this value.

MessageXML:   Returns the last root-level element received by the component.

This returns the last root-level element received by the component. This could be a message, iq, presence, or any other element type.

Overwrite:   Specifies whether or not to overwrite received files.

The default value is false. If set to true, the control will overwrite the existing files in LocalDirectory if another file with the same name is received. This is only applicable when receiving file transfers.

ParseHTML:   Tells XMPP whether or not to parse MessageHTML when it's set.

If ParseHTML is true, the control will take any value sent to MessageHTML, compute a plaintext version of the text, and put it into the MessageText property.

RetrieveRoster:   Whether to automatically retrieve the roster when logging in.

When this configuration setting is set to True (default), the control will automatically retrieve the roster from the server when logging in. Setting this to False will cause the control to not request the roster, which can be useful when interacting with some non-standard XMPP servers.

SendSubscriptionResponse:   Determines whether a response will be sent to a Subscription Request.

When set to true, a response will be sent to a subscription request based upon the Accept parameter value of the SubscriptionRequest event. When set to false, a response will not be sent. Therefore a response can be created and sent using SendCommand outside of the SubscriptionRequest event. The default value is true.

UseCompression:   Specified whether or not stream compression is used.

The default value is false. If set to true, the control will use stream compression when communicating with the IMServer.

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 control will use Timeout for establishing a connection and transmitting/receiving data.

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

This configuration setting is provided for use by controls 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 controls 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 control fails with an error.

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

FirewallType:   Determines the type of firewall to connect through.

The appropriate values are as follows:

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

Note: This setting is provided for use by controls 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 control fails with an error.

Note: This setting is provided for use by controls 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.

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 control 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 multi-homed hosts (machines with more than one IP interface) setting LocalHost to the value of an interface will make the control initiate connections (or accept in the case of server controls) only through that interface.

If the control 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 multi-homed hosts (machines with more than one IP interface).

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

This must be set before a connection is attempted. It instructs the control 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; setting is useful when trying to connect to services that require a trusted port in 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 true, the socket will send all data that is ready to send at once. When false, the socket will send smaller buffered packets of data at small intervals. This is known as the Nagle algorithm.

By default, this config is set to false.

UseIPv6:   Whether to use IPv6.

When set to 0 (default), the control will use IPv4 exclusively. When set to 1, the control will use IPv6 exclusively. To instruct the control 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:

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 setting controls whether SSL packets should be logged. By default, this setting is False, as it is only useful 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 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 etc). OpenSSL recommends to use 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

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

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

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

sequences. Before, between, and after the certificates text is allowed which can be used e.g. for descriptions of the certificates. Please 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 control 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 control is the same.

SSLCACerts:   A newline separated list of CA certificate to use during SSL client authentication.

This setting specifies one or more CA certificates to be included in the request when performing SSL client authentication. Some servers require the entire chain, including CA certificates, to be presented when performing SSL client authentication. The value of this setting is a newline (CrLf) separated list of certificates. For instance:

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

SSLCheckCRL:   Whether to check the Certificate Revocation List for the server certificate.

This setting specifies whether the control will check the Certificate Revocation List specified by the server certificate. If set to 1 or 2, the control will first obtain the list of CRL URLs from the server certificate's CRL distribution points extension. The control will then make HTTP requests to each CRL endpoint to check the validity of the server's certificate. If the certificate has been revoked or any other issues are found during validation the control fails with an error.

When set to 0 (default) the CRL check will not be performed by the control. When set to 1, it will attempt to perform the CRL check, but will continue without an error if the server's certificate does not support CRL. When set to 2, it will perform the CRL check and will throw an error if CRL is not supported.

This configuration setting is only supported in the Java, C#, and C++ editions. In the C++ edition, it is only supported on Windows operating systems.

SSLCheckOCSP:   Whether to use OCSP to check the status of the server certificate.

This setting specifies whether the control will use OCSP to check the validity of the server certificate. If set to 1 or 2, the control will first obtain the OCSP URL from the server certificate's OCSP extension. The control will then locate the issuing certificate and make an HTTP request to the OCSP endpoint to check the validity of the server's certificate. If the certificate has been revoked or any other issues are found during validation the control fails with an error.

When set to 0 (default) the control will not perform an OCSP check. When set to 1, it will attempt to perform the OCSP check, but will continue without an error if the server's certificate does not support OCSP. When set to 2, it will perform the OCSP check and will throw an error if OCSP is not supported.

This configuration setting is only supported in the Java, C#, and C++ editions. In the C++ edition, it is only supported on Windows operating systems.

SSLCipherStrength:   The minimum cipher strength used for bulk encryption.

This minimum cipher strength 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.

Please note that this setting contains the minimum cipher strength requested from the security library. The actual cipher strength used for the connection is shown by the SSLStatus event.

Use this setting with caution. Requesting a lower cipher strength than necessary could potentially cause serious security vulnerabilities in your application.

When the provider is OpenSSL, SSLCipherStrength is currently not supported. This functionality is instead made available through the OpenSSLCipherList config setting.

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

The enabled 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 control 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: 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:

  • 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 Internal: 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_DH_ANON_WITH_AES_128_CBC_SHA"); Possible values when SSLProvider is set to Internal include:
  • TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
  • TLS_RSA_WITH_AES_256_GCM_SHA384
  • TLS_RSA_WITH_AES_128_GCM_SHA256
  • TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
  • TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
  • TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
  • TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
  • TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
  • TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
  • TLS_DH_RSA_WITH_AES_128_GCM_SHA256 (Not Recommended)
  • TLS_DH_RSA_WITH_AES_256_GCM_SHA384 (Not Recommended)
  • TLS_DH_DSS_WITH_AES_128_GCM_SHA256 (Not Recommended)
  • TLS_DH_DSS_WITH_AES_256_GCM_SHA384 (Not Recommended)
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
  • TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
  • TLS_RSA_WITH_AES_256_CBC_SHA256
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
  • TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
  • TLS_RSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
  • TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
  • TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
  • TLS_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_256_CBC_SHA
  • TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
  • TLS_DHE_DSS_WITH_AES_256_CBC_SHA
  • TLS_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
  • TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
  • TLS_DHE_RSA_WITH_AES_128_CBC_SHA
  • TLS_DHE_DSS_WITH_AES_128_CBC_SHA
  • TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
  • TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
  • TLS_RSA_WITH_3DES_EDE_CBC_SHA
  • TLS_RSA_WITH_DES_CBC_SHA
  • TLS_DHE_RSA_WITH_DES_CBC_SHA
  • TLS_DHE_DSS_WITH_DES_CBC_SHA
  • TLS_RSA_WITH_RC4_128_MD5
  • TLS_RSA_WITH_RC4_128_SHA

When TLS 1.3 is negotiated (see SSLEnabledProtocols) only the following cipher suites are supported:

  • TLS_AES_256_GCM_SHA384
  • TLS_CHACHA20_POLY1305_SHA256
  • TLS_AES_128_GCM_SHA256

SSLEnabledCipherSuites is used together with SSLCipherStrength.

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

Used to enable/disable the supported security protocols.

Not all supported protocols are enabled by default (the value of this setting is 4032). If you want more granular control over the enabled protocols, you can set this property to the binary 'OR' of one or more of the following values:

TLS1.312288 (Hex 3000)
TLS1.23072 (Hex C00) (Default)
TLS1.1768 (Hex 300) (Default)
TLS1 192 (Hex C0) (Default)
SSL3 48 (Hex 30)
SSL2 12 (Hex 0C)

SSLEnabledProtocols - TLS 1.3 Notes

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

In editions which are designed to run on Windows SSLProvider can be set to Platform to use the platform implementation instead of the internal implementation. When configured in this manner, please note that the platform provider is only supported on Windows 11 / Windows Server 2022 and up. The default internal provider is available on all platforms and is not restricted to any specific OS version.

If set to 1 (Platform provider) please be aware of the following notes:

  • The platform provider is only available on Windows 11 / Windows Server 2022 and up.
  • SSLEnabledCipherSuites and other similar SSL configuration settings are not supported.
  • If SSLEnabledProtocols includes both TLS 1.3 and TLS 1.2 the above restrictions are still applicable even if TLS 1.2 is negotiated. Enabling TLS 1.3 with the platform provider changes the implementation used for all TLS versions.

SSLEnableRenegotiation:   Whether the renegotiation_info SSL extension is supported.

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

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

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

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

When set, the control will save the session secrets in the same format as the SSLKEYLOGFILE environment variable functionality used by most major browsers and tools such as Chrome, Firefox, and cURL. This file can then be used in tools such as Wireshark to decrypt TLS traffice for debugging purposes. When writing to this file the control will only append, it will not overwrite previous values.

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

SSLNegotiatedCipher:   Returns the negotiated cipher suite.

Returns the cipher suite negotiated during the SSL handshake.

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

SSLNegotiatedCipherStrength:   Returns the negotiated cipher suite strength.

Returns the strength of the cipher suite negotiated during the SSL handshake.

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

SSLNegotiatedCipherSuite:   Returns the negotiated cipher suite.

Returns the cipher suite negotiated during the SSL handshake represented as a single string.

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

SSLNegotiatedKeyExchange:   Returns the negotiated key exchange algorithm.

Returns the key exchange algorithm negotiated during the SSL handshake.

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

SSLNegotiatedKeyExchangeStrength:   Returns the negotiated key exchange algorithm strength.

Returns the strenghth of the key exchange algorithm negotiated during the SSL handshake.

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

SSLNegotiatedVersion:   Returns the negotiated protocol version.

Returns the protocol version negotiated during the SSL handshake.

Note: For server components (e.g. TCPServer) this is a per-connection 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 or-ed together to exclude multiple conditions:

0x00000001Ignore time validity status of certificate.
0x00000002Ignore time validity status of CTL.
0x00000004Ignore non-nested certificate times.
0x00000010Allow unknown Certificate Authority.
0x00000020Ignore wrong certificate usage.
0x00000100Ignore unknown certificate revocation status.
0x00000200Ignore unknown CTL signer revocation status.
0x00000400Ignore unknown Certificate Authority revocation status.
0x00000800Ignore unknown Root revocation status.
0x00008000Allow test Root certificate.
0x00004000Trust test Root certificate.
0x80000000Ignore non-matching CN (certificate CN not-matching server name).

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

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

This setting optionally specifies one or more CA certificates to be used when 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 setting should only be set 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 setting is a newline (CrLf) separated list of certificates. For instance:

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

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

This 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 control will verify that the server certificate signature algorithm is among the values specified in this setting. If the server certificate signature algorithm is unsupported the control 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 setting is sha512-ecdsa,sha512-rsa,sha512-dsa,sha384-ecdsa,sha384-rsa,sha384-dsa,sha256-ecdsa,sha256-rsa,sha256-dsa,sha224-ecdsa,sha224-rsa,sha224-dsa,sha1-ecdsa,sha1-rsa,sha1-dsa.

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

TLS12SupportedGroups:   The supported groups for ECC.

This 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 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 round trip 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 setting.

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

In most cases this setting does not need to be modified. This should only be modified if there is a specific reason to do so.

The default value is ecdhe_x25519,ecdhe_secp256r1,ecdhe_secp384r1,ffdhe_2048,ffdhe_3072

The values are ordered from most preferred to least preferred. The following values are supported:

  • "ecdhe_x25519" (default)
  • "ecdhe_x448"
  • "ecdhe_secp256r1" (default)
  • "ecdhe_secp384r1" (default)
  • "ecdhe_secp521r1"
  • "ffdhe_2048" (default)
  • "ffdhe_3072" (default)
  • "ffdhe_4096"
  • "ffdhe_6144"
  • "ffdhe_8192"

TLS13SignatureAlgorithms:   The allowed certificate signature algorithms.

This setting holds a comma separated list of allowed signature algorithms. Possible values are:

  • "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 setting is only applicable when SSLEnabledProtocols includes TLS 1.3.
TLS13SupportedGroups:   The supported groups for (EC)DHE key exchange.

This setting specifies a comma separated list of named groups used in TLS 1.3 for key exchange. This setting should only be modified 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 which 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 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 TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be receiving. Increasing the value of the InBufferSize setting can provide significant improvements in performance in some cases.

Some TCP/IP implementations do not support variable buffer sizes. If that is the case, when the control 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. Increasing the value of the OutBufferSize setting can provide significant improvements in performance in some cases.

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

Trappable Errors (XMPP Control)

XMPP Errors

20203    Invalid argument.
20433    Array index out of bounds.
20601    XMPP protocol error (server returned an error code; description follows).
20602    Server disconnected.
20603    Cannot change this property while connected.
20604    Invalid XML received from server.
20605    Invalid response received from server.
20606    Server indicates TLS is required.
20607    User requested SSL, but server does not support it.
20608    Cannot authenticate.
20621    Error hashing password.

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

TCPClient Errors

20101    You cannot change the RemotePort at this time. A connection is in progress.
20102    You cannot change the RemoteHost (Server) at this time. A connection is in progress.
20103    The RemoteHost address is invalid (0.0.0.0).
20105    Already connected. If you want to reconnect, close the current connection first.
20107    You cannot change the LocalPort at this time. A connection is in progress.
20108    You cannot change the LocalHost at this time. A connection is in progress.
20113    You cannot change MaxLineLength at this time. A connection is in progress.
20117    RemotePort cannot be zero. Please specify a valid service port number.
20118    You cannot change the UseConnection option while the control is active.
20136    Operation would block.
20202    Timeout.
20212    Action impossible in control's present state.
20213    Action impossible while not connected.
20214    Action impossible while listening.
20302    Timeout.
20303    Could not open file.
20435    Unable to convert string to selected CodePage.
21106    Already connecting. If you want to reconnect, close the current connection first.
21118    You need to connect first.
21120    You cannot change the LocalHost at this time. A connection is in progress.
21121    Connection dropped by remote host.

SSL Errors

20271    Cannot load specified security library.
20272    Cannot open certificate store.
20273    Cannot find specified certificate.
20274    Cannot acquire security credentials.
20275    Cannot find certificate chain.
20276    Cannot verify certificate chain.
20277    Error during handshake.
20281    Error verifying certificate.
20282    Could not find client certificate.
20283    Could not find server certificate.
20284    Error encrypting data.
20285    Error decrypting data.

TCP/IP Errors

25005    [10004] Interrupted system call.
25010    [10009] Bad file number.
25014    [10013] Access denied.
25015    [10014] Bad address.
25023    [10022] Invalid argument.
25025    [10024] Too many open files.
25036    [10035] Operation would block.
25037    [10036] Operation now in progress.
25038    [10037] Operation already in progress.
25039    [10038] Socket operation on non-socket.
25040    [10039] Destination address required.
25041    [10040] Message too long.
25042    [10041] Protocol wrong type for socket.
25043    [10042] Bad protocol option.
25044    [10043] Protocol not supported.
25045    [10044] Socket type not supported.
25046    [10045] Operation not supported on socket.
25047    [10046] Protocol family not supported.
25048    [10047] Address family not supported by protocol family.
25049    [10048] Address already in use.
25050    [10049] Can't assign requested address.
25051    [10050] Network is down.
25052    [10051] Network is unreachable.
25053    [10052] Net dropped connection or reset.
25054    [10053] Software caused connection abort.
25055    [10054] Connection reset by peer.
25056    [10055] No buffer space available.
25057    [10056] Socket is already connected.
25058    [10057] Socket is not connected.
25059    [10058] Can't send after socket shutdown.
25060    [10059] Too many references, can't splice.
25061    [10060] Connection timed out.
25062    [10061] Connection refused.
25063    [10062] Too many levels of symbolic links.
25064    [10063] File name too long.
25065    [10064] Host is down.
25066    [10065] No route to host.
25067    [10066] Directory not empty
25068    [10067] Too many processes.
25069    [10068] Too many users.
25070    [10069] Disc Quota Exceeded.
25071    [10070] Stale NFS file handle.
25072    [10071] Too many levels of remote in path.
25092    [10091] Network subsystem is unavailable.
25093    [10092] WINSOCK DLL Version out of range.
25094    [10093] Winsock not loaded yet.
26002    [11001] Host not found.
26003    [11002] Non-authoritative 'Host not found' (try again or check DNS setup).
26004    [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP.
26005    [11004] Valid name, no data record (check DNS setup).