SMPP Class

Properties Methods Events Config Settings Errors

The Smpp Class implements a lightweight message transmission interface using the Short Message Peer-to-Peer protocol, most known for its use in cellular text messaging.

Syntax

class ipworks.SMPP

Remarks

The Smpp class supports both plaintext and SSL/TLS connections. When connecting over SSL/TLS the on_ssl_server_authentication event allows you to check the server identity and other security attributes. The on_ssl_status event provides information about the SSL handshake. Additional SSL related settings are also supported via the config method.

The Smpp Class will bind as a transceiver, and thus can send and receive messages from the server. Additionally, it can send single and multi-recipient messages, and can upload data.

Using Smpp is quite easy. First, simply set the smpp_server, smpp_port, and, if needed, the smpp_version properties. Second, a single call to the connect method with a specified user id and password will connect the class.

Transmitting messages is just as easy. You can manipulate the recipients properties directly, or just use add_recipient method to add recipients one-by-one to the recipient list. After all recipients have been added, a single call to the send_message method will transmit the specified message. If the send is successful, the method will set and return the value of the message_id property. Otherwise, an on_error event will fire for each unsuccessful message destination.

The Smpp Class supports message and data transmission, as well as auxiliary operations such as check_message_status and replace_message. All non-implemented features of the protocol are supported through the send_command method and on_pi_trail event. Due to the nature of the protocol, all methods and operations are implemented synchronously.

Property List

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


connected	Indicates whether or not the class is bound.
firewall_auto_detect	This property tells the class whether or not to automatically detect and use firewall system settings, if available.
firewall_type	This property determines the type of firewall to connect through.
firewall_host	This property contains the name or IP address of firewall (optional).
firewall_password	This property contains a password if authentication is to be used when connecting through the firewall.
firewall_port	This property contains the transmission control protocol (TCP) port for the firewall Host .
firewall_user	This property contains a user name if authentication is to be used connecting through a firewall.
idle	The current status of the class.
local_host	The name of the local host or user-assigned IP interface through which connections are initiated or accepted.
message_expiration	Denotes the validity period of the current message.
message_id	The identifier of the most recently sent message.
message_priority	The priority level of the current message.
password	Contains the user's password.
protocol	The SMPP protocol to be used.
recipient_count	The number of records in the Recipient arrays.
recipient_address	This property contains the email address of a particular recipient.
recipient_type	This property contains the type of a particular recipient.
scheduled_delivery	Tells the server when to deliver the current message.
sender_address	The address of the ESME.
service_type	Indicates the type of service for the current message.
smpp_port	This property contains the server port for secure SMPP (default 2775).
smpp_server	The SMPP entity to which the class will connect.
smpp_version	The SMPP version to be used throughout the connection.
ssl_accept_server_cert_encoded	This is the certificate (PEM/base64 encoded).
ssl_cert_encoded	This is the certificate (PEM/base64 encoded).
ssl_cert_store	This is the name of the certificate store for the client certificate.
ssl_cert_store_password	If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
ssl_cert_store_type	This is the type of certificate store for this certificate.
ssl_cert_subject	This is the subject of the certificate used for client authentication.
ssl_enabled	Whether TLS/SSL is enabled.
ssl_provider	This specifies the SSL/TLS implementation to use.
ssl_server_cert_encoded	This is the certificate (PEM/base64 encoded).
ssl_start_mode	Determines how the class starts the SSL negotiation.
system_type	A string representing the type of system during a connection.
timeout	A timeout for the class.
user_id	Used for identification with the SMPP service.

Method List

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


add_recipient	Will add a recipient of the specified type to the recipient list.
cancel_message	Will cancel the specified message.
check_link	Will check the connection to the server.
check_message_status	Will retrieve the status of the specified message.
config	Sets or retrieves a configuration setting.
connect	Will bind as a transceiver to the SMPP service.
connect_to	Will bind as a transceiver to the SMPP service.
disconnect	Will disconnect from the SMPP service.
do_events	Processes events from the internal message queue.
interrupt	Interrupt the current method.
replace_message	Replaces a previously sent message with a new one.
reset	Reset the class.
send_command	Will format and send a PDU using the specified command identifier and payload.
send_data	Sends raw data to Recipients .
send_message	Sends a message to all recipients in the recipient list.

Event List

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


on_connected	This event is fired after a successful bind operation.
on_connection_status	This event is fired to indicate changes in the connection state.
on_disconnected	This event is fired when connection to the SMS service is lost.
on_error	This event is fired when the server detects an error.
on_message_in	This event is fired upon receipt of a message.
on_message_status	This event is fired upon receipt of a message.
on_pi_trail	This event is fired once for each PDU sent between the client and server.
on_ready_to_send	This event is fired when the class is ready to send data.
on_ssl_server_authentication	Fired after the server presents its certificate to the client.
on_ssl_status	Shows the progress of the secure connection.

Config Settings

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


AddressRange	Specifies the addr_range parameter when binding.
BinaryDataCoding	Whether or not to binary encode the message when DataCoding is set.
BindAsReceiver	Causes the class to bind as a receiver.
BindAsTransmitter	Causes the class to bind as a transmitter.
CustomTLV	Optional TLV parameters added after the mandatory parameters and before the payload.
DataCoding	The data encoding mechanism to be used for the current message.
DecodeHexStrings	Will decode an ascii hex-representation of binary data prior to transmission.
DestinationNPI	The Number Planning Indicator for the destination ESME.
DestinationTON	The Type of Number for the destination ESME.
DoSplitLargeMessages	Splits long messages and returns the UDH and Message Parts.
HexString	A hex-encoded binary string to be sent to the current recipient.
IncomingDestinationAddress	Returns the dest_addr field inside the received message.
IntermediateNotification	Causes the class to request intermediate notification.
MaxCIMDSMSLength	Indicates the maximum SMS message length for the CIMD protocol.
MaxSMSLength	Indicates the maximum SMS message length.
MCReceipt	The Type of MC Delivery Receipt requested.
MessageInReceiptedMessageId	The receipted_message_id field of an incoming deliver_sm PDU.
MessageMode	The Type of Messaging Mode requested.
MessageType	The Type of Message.
ProtocolId	The protocol identifier.
SMEAcknowledgement	The Type of SME originated acknowledgement requested.
SourceNPI	The Number Planning Indicator for the ESME.
SourceTON	The Type of Number for the ESME.
SplitLargeMessages	Determines whether large messages are split into multiple parts.
SplitMessageMethod	Determines how large messages are split into multiple parts.
StatusReportRequest	Defines in what cases a status report is created by the server.
SubAddr	Defines a unique index for application instance.
SynchronousSendCommand	Controls whether SendCommand behaves synchronously or asynchronously.
SynchronousSendMessage	Controls whether SendMessage behaves synchronously or asynchronously.
UseGSM7BitEncoding	Whether or not to use GSM 7-bit encoding.
UseGSM7bitEncodingCompression	Whether to compress GSM 7-bit encoded characters.
WaitForBanner	Specifies the CIMD2 banner the class will wait for when connecting.
ConnectionTimeout	Sets a separate timeout value for establishing a connection.
FirewallAutoDetect	Tells the class whether or not to automatically detect and use firewall system settings, if available.
FirewallHost	Name or IP address of firewall (optional).
FirewallPassword	Password to be used if authentication is to be used when connecting through the firewall.
FirewallPort	The TCP port for the FirewallHost;.
FirewallType	Determines the type of firewall to connect through.
FirewallUser	A user name if authentication is to be used connecting through a firewall.
KeepAliveInterval	The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received.
KeepAliveTime	The inactivity time in milliseconds before a TCP keep-alive packet is sent.
Linger	When set to True, connections are terminated gracefully.
LingerTime	Time in seconds to have the connection linger.
LocalHost	The name of the local host through which connections are initiated or accepted.
LocalPort	The port in the local host where the class binds.
MaxLineLength	The maximum amount of data to accumulate when no EOL is found.
MaxTransferRate	The transfer rate limit in bytes per second.
ProxyExceptionsList	A semicolon separated list of hosts and IPs to bypass when using a proxy.
TCPKeepAlive	Determines whether or not the keep alive socket option is enabled.
TcpNoDelay	Whether or not to delay when sending packets.
UseIPv6	Whether to use IPv6.
LogSSLPackets	Controls whether SSL packets are logged when using the internal security API.
OpenSSLCADir	The path to a directory containing CA certificates.
OpenSSLCAFile	Name of the file containing the list of CA's trusted by your application.
OpenSSLCipherList	A string that controls the ciphers to be used by SSL.
OpenSSLPrngSeedData	The data to seed the pseudo random number generator (PRNG).
ReuseSSLSession	Determines if the SSL session is reused.
SSLCACertFilePaths	The paths to CA certificate files on Unix/Linux.
SSLCACerts	A newline separated list of CA certificate to use during SSL client authentication.
SSLCheckCRL	Whether to check the Certificate Revocation List for the server certificate.
SSLCheckOCSP	Whether to use OCSP to check the status of the server certificate.
SSLCipherStrength	The minimum cipher strength used for bulk encryption.
SSLEnabledCipherSuites	The cipher suite to be used in an SSL negotiation.
SSLEnabledProtocols	Used to enable/disable the supported security protocols.
SSLEnableRenegotiation	Whether the renegotiation_info SSL extension is supported.
SSLIncludeCertChain	Whether the entire certificate chain is included in the SSLServerAuthentication event.
SSLKeyLogFile	The location of a file where per-session secrets are written for debugging purposes.
SSLNegotiatedCipher	Returns the negotiated ciphersuite.
SSLNegotiatedCipherStrength	Returns the negotiated ciphersuite strength.
SSLNegotiatedCipherSuite	Returns the negotiated ciphersuite.
SSLNegotiatedKeyExchange	Returns the negotiated key exchange algorithm.
SSLNegotiatedKeyExchangeStrength	Returns the negotiated key exchange algorithm strength.
SSLNegotiatedVersion	Returns the negotiated protocol version.
SSLSecurityFlags	Flags that control certificate verification.
SSLServerCACerts	A newline separated list of CA certificate to use during SSL server certificate validation.
TLS12SignatureAlgorithms	Defines the allowed TLS 1.2 signature algorithms when SSLProvider is set to Internal.
TLS12SupportedGroups	The supported groups for ECC.
TLS13KeyShareGroups	The groups for which to pregenerate key shares.
TLS13SignatureAlgorithms	The allowed certificate signature algorithms.
TLS13SupportedGroups	The supported groups for (EC)DHE key exchange.
AbsoluteTimeout	Determines whether timeouts are inactivity timeouts or absolute timeouts.
FirewallData	Used to send extra data to the firewall.
InBufferSize	The size in bytes of the incoming queue of the socket.
OutBufferSize	The size in bytes of the outgoing queue of the socket.
BuildInfo	Information about the product's build.
CodePage	The system code page used for Unicode to Multibyte translations.
LicenseInfo	Information about the current license.
MaskSensitive	Whether sensitive data is masked in log messages.
ProcessIdleEvents	Whether the class uses its internal event loop to process events when the main thread is idle.
SelectWaitMillis	The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process.
UseInternalSecurityAPI	Tells the class whether or not to use the system security libraries or an internal implementation.

connected Property

Indicates whether or not the class is bound.

Syntax

def get_connected() -> bool: ...

connected = property(get_connected, None)

Default Value

FALSE

Remarks

The value of this property indicates whether or not the class has successfully bound to the smpp_server. It will not be true until a successful on_connected event has fired.

There are two ways to bind: by calling connect with a user identifier and password which will set the user_id and password properties before connecting; or by setting those two properties and calling send_message while not connected.

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

This property is read-only.

firewall_auto_detect Property

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

Syntax

def get_firewall_auto_detect() -> bool: ...
def set_firewall_auto_detect(value: bool) -> None: ...

firewall_auto_detect = property(get_firewall_auto_detect, set_firewall_auto_detect)

Default Value

FALSE

Remarks

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

firewall_type Property

This property determines the type of firewall to connect through.

Syntax

def get_firewall_type() -> int: ...
def set_firewall_type(value: int) -> None: ...

firewall_type = property(get_firewall_type, set_firewall_type)

Default Value

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

firewall_host Property

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

Syntax

def get_firewall_host() -> str: ...
def set_firewall_host(value: str) -> None: ...

firewall_host = property(get_firewall_host, set_firewall_host)

Default Value

Remarks

This property contains the name or IP address of firewall (optional). If a firewall_host 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 class fails with an error.

firewall_password Property

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

Syntax

def get_firewall_password() -> str: ...
def set_firewall_password(value: str) -> None: ...

firewall_password = property(get_firewall_password, set_firewall_password)

Default Value

Remarks

This property contains a password if authentication is to be used when connecting through the firewall. If firewall_host is specified, the firewall_user and firewall_password properties are used to connect and authenticate to the given firewall. If the authentication fails, the class fails with an error.

firewall_port Property

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

Syntax

def get_firewall_port() -> int: ...
def set_firewall_port(value: int) -> None: ...

firewall_port = property(get_firewall_port, set_firewall_port)

Default Value

Remarks

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

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

firewall_user Property

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

Syntax

def get_firewall_user() -> str: ...
def set_firewall_user(value: str) -> None: ...

firewall_user = property(get_firewall_user, set_firewall_user)

Default Value

Remarks

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

idle Property

The current status of the class.

Syntax

def get_idle() -> bool: ...

idle = property(get_idle, None)

Default Value

TRUE

Remarks

idle will be False if the component is currently busy (communicating and/or waiting for an answer), and True at all other times.

This property is read-only.

local_host Property

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

Syntax

def get_local_host() -> str: ...
def set_local_host(value: str) -> None: ...

local_host = property(get_local_host, set_local_host)

Default Value

Remarks

The local_host 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 class initiate connections (or accept in the case of server classs) only through that interface.

If the class is connected, the local_host 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: local_host is not persistent. You must always set it in code, and never in the property window.

message_expiration Property

Denotes the validity period of the current message.

Syntax

def get_message_expiration() -> str: ...
def set_message_expiration(value: str) -> None: ...

message_expiration = property(get_message_expiration, set_message_expiration)

Default Value

Remarks

This property indicates the MC expiration time, after which the message should be discarded if not delivered to the destination. It can be set using absolute or relative time formats.

Absolute Time Format is a 16-character string represented as "YYMMDDhhmmsstnnp" where:


YY	the last two digits of the year (00-99)
MM	month (01-12)
DD	day (01-31)
hh	hour (00-23)
mm	minute (00-59)
ss	second (00-59)
t	tenths of a second (0-9)
nn	quarter-hour time difference between local time and UTC time (00-48)
p	"+" or "-" indicating the direction of the time offset in `nn`

Relative Time Format is the same 16-character string where "p" should be set to "R" for "relative". For relative time, "tnn" are ignored and thus should be set to a constant value of "000".

message_id Property

The identifier of the most recently sent message.

Syntax

def get_message_id() -> str: ...

message_id = property(get_message_id, None)

Default Value

Remarks

This property indicates the identifier of the most recently sent message. After a successful call to send_message, this property will be set to the server-assigned id of that message.

This property is read-only.

message_priority Property

The priority level of the current message.

Syntax

def get_message_priority() -> int: ...
def set_message_priority(value: int) -> None: ...

message_priority = property(get_message_priority, set_message_priority)

Default Value

Remarks

When sending a message, this property will tell the server what type of priority to assign to the message. The effect of the message priority setting is dependent upon the Message Center manufacturer and the network on which the target recipient lies. For example, some MCs may immediately forward "urgent" messages, some networks may use the priority setting as a visual indicator of the message's urgency (e.g. blinking icons, etc.), and some networks may entirely ignore the priority setting.

password Property

Contains the user's password.

Syntax

def get_password() -> str: ...
def set_password(value: str) -> None: ...

password = property(get_password, set_password)

Default Value

Remarks

This property contains the user's password. When binding to the smpp_server, the client must provide a known user identifier and a valid password for that ID.

There are two ways to bind: by calling connect with a user identifier and password which will set the user_id and this property properties before connecting; or by setting those two properties and calling send_message while not connected.

protocol Property

The SMPP protocol to be used.

Syntax

def get_protocol() -> int: ...
def set_protocol(value: int) -> None: ...

protocol = property(get_protocol, set_protocol)

Default Value

Remarks

This property defines the protocol to be used when connecting to the server. Possible values are:


0 (smppSMPP - default)	SMPP for traditional SMPP servers
1 (smppCIMD2)	CIMD2 for Nokia Short Message Service Center servers

recipient_count Property

The number of records in the Recipient arrays.

Syntax

def get_recipient_count() -> int: ...
def set_recipient_count(value: int) -> None: ...

recipient_count = property(get_recipient_count, set_recipient_count)

Default Value

Remarks

This property controls the size of the following arrays:

recipient_address
recipient_type

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

recipient_address Property

This property contains the email address of a particular recipient.

Syntax

def get_recipient_address(recipient_index: int) -> str: ...
def set_recipient_address(recipient_index: int, value: str) -> None: ...

Default Value

Remarks

This property contains the email address of a particular recipient. This can be used for setting single or multiple recipients. The recipient_type contains the corresponding type.

For a recipient type of normal, the value in the recipient_address should be either the dotted IPv4 of an SMS-enabled device or the directory number of a target mobile phone. For distributed lists, the value should be the name of the list as it is stored on the smpp_server.

The recipient_index parameter specifies the index of the item in the array. The size of the array is controlled by the recipient_count property.

recipient_type Property

This property contains the type of a particular recipient.

Syntax

def get_recipient_type(recipient_index: int) -> int: ...
def set_recipient_type(recipient_index: int, value: int) -> None: ...

Default Value

Remarks

This property contains the type of a particular recipient. This property is used only for multiple recipient messages. The recipient_address contains the corresponding recipient's address.

For a recipient type of normal, the value in recipient_address should be either the dotted IPv4 of an SMS-enabled device or the directory number of a target mobile phone. For distributed lists, the value should be the name of the list as it is stored on the smpp_server.

Valid values for RecipientType are:


0 (smppRecipientTypeNormal)	Normal SME (Short Message Entity) Address
1 (smppRecipientTypeList)	Distribution List

The recipient_index parameter specifies the index of the item in the array. The size of the array is controlled by the recipient_count property.

scheduled_delivery Property

Tells the server when to deliver the current message.

Syntax

def get_scheduled_delivery() -> str: ...
def set_scheduled_delivery(value: str) -> None: ...

scheduled_delivery = property(get_scheduled_delivery, set_scheduled_delivery)

Default Value

Remarks

This property is used by the class when sending a message to inform the Message Center (MC) to forward the message to the intended recipients at a specific time. It can be set using absolute or relative time formats.

Absolute Time Format is a 16-character string represented as "YYMMDDhhmmsstnnp" where:


YY	the last two digits of the year (00-99)
MM	month (01-12)
DD	day (01-31)
hh	hour (00-23)
mm	minute (00-59)
ss	second (00-59)
t	tenths of a second (0-9)
nn	quarter-hour time difference between local time and UTC time (00-48)
p	"+" or "-" indicating the direction of the time offset in `nn`

Relative Time Format is the same 16-character string where "p" should be set to "R" for "relative". For relative time, "tnn" are ignored and thus should be set to a constant value of "000".

sender_address Property

The address of the ESME.

Syntax

def get_sender_address() -> str: ...
def set_sender_address(value: str) -> None: ...

sender_address = property(get_sender_address, set_sender_address)

Default Value

Remarks

This property contains the address of the ESME. The SMPP protocol allows an External Short Messaging Entity (ESME) to specify its address, whether it is a phone number or an IP address. If This property is not set, the class will default to the value in local_host.

service_type Property

Indicates the type of service for the current message.

Syntax

def get_service_type() -> int: ...
def set_service_type(value: int) -> None: ...

service_type = property(get_service_type, set_service_type)

Default Value

Remarks

When sending messages, this property is used define the SMS application service to be associated with the message. The MC will use the value to determine the availability of enhanced messaging services and to control the teleservice used on the air interface.

The values are defined in the SMPP 5.0 specification as the following:


"" (NULL)	the MC default
CMT	Cellular Messaging
CPT	Cellular Paging
VMN	Voice Mail Notification
VMA	Voice Mail Alerting
WAP	Wireless Application Protocol
USSD	Unstructured Supplementary Services Data
CBS	Cell Broadcast Service

smpp_port Property

This property contains the server port for secure SMPP (default 2775).

Syntax

def get_smpp_port() -> int: ...
def set_smpp_port(value: int) -> None: ...

smpp_port = property(get_smpp_port, set_smpp_port)

Default Value

2775

Remarks

For implicit SSL, use port 3551 (please refer to the ssl_start_mode 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.

smpp_server Property

The SMPP entity to which the class will connect.

Syntax

def get_smpp_server() -> str: ...
def set_smpp_server(value: str) -> None: ...

smpp_server = property(get_smpp_server, set_smpp_server)

Default Value

Remarks

This property is the instant messaging server to which the class will connect when the connect method is called. This property must contain a valid SMPP service application address.

smpp_version Property

The SMPP version to be used throughout the connection.

Syntax

def get_smpp_version() -> int: ...
def set_smpp_version(value: int) -> None: ...

smpp_version = property(get_smpp_version, set_smpp_version)

Default Value

Remarks

This property contains the SMPP version to be used throughout the connection.

The default value is version 3.4 as it is the most widely used version of the protocol.

Choosing the highest mutually supported version is generally recommended. Version 3.4 is the default value, however if version 5.0 is supported it is recommended.

ssl_accept_server_cert_encoded Property

This is the certificate (PEM/base64 encoded).

Syntax

def get_ssl_accept_server_cert_encoded() -> bytes: ...
def set_ssl_accept_server_cert_encoded(value: bytes) -> None: ...

ssl_accept_server_cert_encoded = property(get_ssl_accept_server_cert_encoded, set_ssl_accept_server_cert_encoded)

Default Value

Remarks

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

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

ssl_cert_encoded Property

This is the certificate (PEM/base64 encoded).

Syntax

def get_ssl_cert_encoded() -> bytes: ...
def set_ssl_cert_encoded(value: bytes) -> None: ...

ssl_cert_encoded = property(get_ssl_cert_encoded, set_ssl_cert_encoded)

Default Value

Remarks

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

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

ssl_cert_store Property

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

Syntax

def get_ssl_cert_store() -> bytes: ...
def set_ssl_cert_store(value: bytes) -> None: ...

ssl_cert_store = property(get_ssl_cert_store, set_ssl_cert_store)

Default Value

"MY"

Remarks

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

The ssl_cert_store_type property denotes the type of the certificate store specified by ssl_cert_store. If the store is password protected, specify the password in ssl_cert_store_password.

ssl_cert_store is used in conjunction with the ssl_cert_subject property to specify client certificates. If ssl_cert_store has a value, and ssl_cert_subject or ssl_cert_encoded is set, a search for a certificate is initiated. Please see the ssl_cert_subject 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:


MY	A certificate store holding personal certificates with their associated private keys.
CA	Certifying authority certificates.
ROOT	Root certificates.

When the certificate store type is 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).

ssl_cert_store_password Property

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

Syntax

def get_ssl_cert_store_password() -> str: ...
def set_ssl_cert_store_password(value: str) -> None: ...

ssl_cert_store_password = property(get_ssl_cert_store_password, set_ssl_cert_store_password)

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.

ssl_cert_store_type Property

This is the type of certificate store for this certificate.

Syntax

def get_ssl_cert_store_type() -> int: ...
def set_ssl_cert_store_type(value: int) -> None: ...

ssl_cert_store_type = property(get_ssl_cert_store_type, set_ssl_cert_store_type)

Default Value

Remarks

This is the type of certificate store for this certificate.

The class supports both public and private keys in a variety of formats. When the cstAuto value is used the class will automatically determine the type. This 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 class. The list_store_certificates method may be called after setting cert_store_type to `cstPKCS11`, cert_store_password to the PIN, and cert_store to the full path of the PKCS11 dll. The certificate information returned in the on_cert_list event's `CertEncoded` parameter may be saved for later use. When using a certificate, pass the previously saved security key information as the ssl_cert_store and set ssl_cert_store_password 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.

ssl_cert_subject Property

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

Syntax

def get_ssl_cert_subject() -> str: ...
def set_ssl_cert_subject(value: str) -> None: ...

ssl_cert_subject = property(get_ssl_cert_subject, set_ssl_cert_subject)

Default Value

Remarks

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

This property must be set after all other certificate properites are set. When this property is set, a search is performed in the current certificate store certificate with 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.


Field	Meaning
CN	Common Name. This is commonly a host name like www.server.com.
O	Organization
OU	Organizational Unit
L	Locality
S	State
C	Country
E	Email Address

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

ssl_enabled Property

Whether TLS/SSL is enabled.

Syntax

def get_ssl_enabled() -> bool: ...
def set_ssl_enabled(value: bool) -> None: ...

ssl_enabled = property(get_ssl_enabled, set_ssl_enabled)

Default Value

FALSE

Remarks

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

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

ssl_provider Property

This specifies the SSL/TLS implementation to use.

Syntax

def get_ssl_provider() -> int: ...
def set_ssl_provider(value: int) -> None: ...

ssl_provider = property(get_ssl_provider, set_ssl_provider)

Default Value

Remarks

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

Possible values are:


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

Additional Notes

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

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

ssl_server_cert_encoded Property

This is the certificate (PEM/base64 encoded).

Syntax

def get_ssl_server_cert_encoded() -> bytes: ...

ssl_server_cert_encoded = property(get_ssl_server_cert_encoded, None)

Default Value

Remarks

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

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

This property is read-only.

ssl_start_mode Property

Determines how the class starts the SSL negotiation.

Syntax

def get_ssl_start_mode() -> int: ...
def set_ssl_start_mode(value: int) -> None: ...

ssl_start_mode = property(get_ssl_start_mode, set_ssl_start_mode)

Default Value

Remarks

The ssl_start_mode 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 class will behave the same as if ssl_start_mode 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 class 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.

system_type Property

A string representing the type of system during a connection.

Syntax

def get_system_type() -> str: ...
def set_system_type(value: str) -> None: ...

system_type = property(get_system_type, set_system_type)

Default Value

Remarks

This property contains a string representing the type of system during a connection. Some SMS servers require that a system type be supplied during connection. The system type is a string representation, usually as an abbreviation, of a particular kind of system. The string cannot exceed 12 bytes.

timeout Property

A timeout for the class.

Syntax

def get_timeout() -> int: ...
def set_timeout(value: int) -> None: ...

timeout = property(get_timeout, set_timeout)

Default Value

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 class will wait for the operation to complete before returning control.

The class will use do_events to enter an efficient wait loop during any potential waiting period, making sure that all system events are processed immediately as they arrive. This ensures that the host application does not "freeze" and remains responsive.

If timeout expires, and the operation is not yet complete, the class fails with an error.

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.

user_id Property

Used for identification with the SMPP service.

Syntax

def get_user_id() -> str: ...
def set_user_id(value: str) -> None: ...

user_id = property(get_user_id, set_user_id)

Default Value

Remarks

This property is used for identification with the SMPP service. When binding to the smpp_server, the client must provide a known user identifier and a valid password for that ID.

There are two ways to bind: by calling connect with a user id and password and will set the user_id and password properties before connecting; or by setting those two properties and calling send_message while not connected.

add_recipient Method

Will add a recipient of the specified type to the recipient list.

Syntax

def add_recipient(recipient_type: int, recipient_address: str) -> None: ...

Remarks

This method will add a recipient of the specified type to the recipient list. For normal-type recipients, the addresses should be either a dotted IPv4 address (for sending messages to other SMS-enabled applications) or the directory number of a mobile phone. For sending messages to distributed lists, the name of the list should be used.

Valid values for RecipientType are:


0 (smppRecipientTypeNormal)	Normal SME (Short Message Entity) Address
1 (smppRecipientTypeList)	Distribution List

cancel_message Method

Will cancel the specified message.

Syntax

def cancel_message(message_id: str) -> None: ...

Remarks

This method will cancel the message stored on the smpp_server under the value in MessageId.

check_link Method

Will check the connection to the server.

Syntax

def check_link() -> None: ...

Remarks

This method will check the connection to the server. This method is used to ensure that the host on the other end of the connection is still active, or that it is still available. While a socket connection may still be available between the client and server, the SMS application on the server may have been taken offline without releasing the socket, or the CPU may be bogged down, etc. This method will send a PDU to the server and wait the length of timeout for a response.

check_message_status Method

Will retrieve the status of the specified message.

Syntax

def check_message_status(message_id: str) -> None: ...

Remarks

This method will retrieve the last known status of the message stored on the server under MessageId. The class will fire a on_message_status containing the parsed response from the server.

config Method

Sets or retrieves a configuration setting.

Syntax

def config(configuration_string: str) -> str: ...

Remarks

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

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

connect Method

Will bind as a transceiver to the SMPP service.

Syntax

def connect() -> None: ...

Remarks

This method will establish a socket connection to the smpp_server and attempt to bind as a transceiver. Once the bind operation has completed, a on_connected event will be fired containing the status of the connection.

connect_to Method

Will bind as a transceiver to the SMPP service.

Syntax

def connect_to(user_id: str, password: str) -> None: ...

Remarks

disconnect Method

Will disconnect from the SMPP service.

Syntax

def disconnect() -> None: ...

Remarks

This method will send an unbind command and close the socket connection to the smpp_server. After a unbind operation and socket closing, a on_disconnected event will be fired containing the status of the unbind operation.

do_events Method

Processes events from the internal message queue.

Syntax

def do_events() -> None: ...

Remarks

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

interrupt Method

Interrupt the current method.

Syntax

def interrupt() -> None: ...

Remarks

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

replace_message Method

Replaces a previously sent message with a new one.

Syntax

def replace_message(message_id: str, new_message: str) -> None: ...

Remarks

Assuming that there is a message on the smpp_server stored under the value in MessageId, this method will replace that message with the value in NewMessage.

If there is no message corresponding to MessageId, the SMS service will respond with an error message.

reset Method

Reset the class.

Syntax

def reset() -> None: ...

Remarks

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

send_command Method

Will format and send a PDU using the specified command identifier and payload.

Syntax

def send_command(command_id: int, payload: bytes) -> bytes: ...

Remarks

This method offers a way to do more with the class than is directly supported. This method takes a command identifier and a payload, which includes every required and optional field after the header, and will create the 16-byte header for it before sending it to the server. The response PDU is returned both in the PITrail and by this method.

send_data Method

Sends raw data to Recipients .

Syntax

def send_data(data: bytes) -> str: ...

Remarks

This method sends raw data to recipients. Up to 64KB of additional data can be supplied at a time for transmission to the smpp_server. Unlike the send_message method, this method can only send to one destination at a time. The target is whatever value is in the recipients properties.

send_message Method

Sends a message to all recipients in the recipient list.

Syntax

def send_message(message: str) -> str: ...

Remarks

The methods sends a message to all recipients in the recipient list. The return value of this method is the server-assigned identifier of the message. The max size of the message sent is 256 bytes.

on_connected Event

This event is fired after a successful bind operation.

Syntax

class SMPPConnectedEventParams(object):
  @property
  def status_code() -> int: ...

  @property
  def description() -> str: ...

# In class SMPP:
@property
def on_connected() -> Callable[[SMPPConnectedEventParams], None]: ...
@on_connected.setter
def on_connected(event_hook: Callable[[SMPPConnectedEventParams], None]) -> None: ...

Remarks

After establishing a socket connection to the smpp_server, the class will attempt to send a bind as transmitter command. Upon completion of this operation, the server will respond with either a success or failure state, reflected in the on_connected event's parameters.

StatusCode will contain the command status (error code) returned by the server. For a StatusCode of "0", Description will be "OK." Otherwise, it will contain a standard interpretation of the error.

on_connection_status Event

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

Syntax

class SMPPConnectionStatusEventParams(object):
  @property
  def connection_event() -> str: ...

  @property
  def status_code() -> int: ...

  @property
  def description() -> str: ...

# In class SMPP:
@property
def on_connection_status() -> Callable[[SMPPConnectionStatusEventParams], None]: ...
@on_connection_status.setter
def on_connection_status(event_hook: Callable[[SMPPConnectionStatusEventParams], None]) -> None: ...

Remarks

The on_connection_status 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.

on_disconnected Event

This event is fired when connection to the SMS service is lost.

Syntax

class SMPPDisconnectedEventParams(object):
  @property
  def status_code() -> int: ...

  @property
  def description() -> str: ...

# In class SMPP:
@property
def on_disconnected() -> Callable[[SMPPDisconnectedEventParams], None]: ...
@on_disconnected.setter
def on_disconnected(event_hook: Callable[[SMPPDisconnectedEventParams], None]) -> None: ...

Remarks

After sending an unbind operation to the server, this event will be fired containing the results of that operation. This event may also be fired if the socket connection to the service is lost.

If the event was fired because of an unbind operation, StatusCode will contain the command status set by the server. Otherwise, it will contain the socket code for the type of disconnection. For a status code value of "0", Description will contain "OK." Otherwise, it will contain a standard interpretation of the value in StatusCode.

on_error Event

This event is fired when the server detects an error.

Syntax

class SMPPErrorEventParams(object):
  @property
  def error_code() -> int: ...

  @property
  def description() -> str: ...

# In class SMPP:
@property
def on_error() -> Callable[[SMPPErrorEventParams], None]: ...
@on_error.setter
def on_error(event_hook: Callable[[SMPPErrorEventParams], None]) -> None: ...

Remarks

If the server sends an error not related to a command sent from the class, the class will fire an on_error event containing information related to the error.

ErrorCode will contain the code sent by the server, and Description will contain a standard interpretation of that code.

on_message_in Event

This event is fired upon receipt of a message.

Syntax

class SMPPMessageInEventParams(object):
  @property
  def source_address() -> str: ...

  @property
  def schedule_delivery_time() -> str: ...

  @property
  def validity_period() -> str: ...

  @property
  def message() -> str: ...

  @property
  def message_part() -> int: ...

  @property
  def message_part_count() -> int: ...

  @property
  def message_part_reference() -> int: ...

  @property
  def destination_address() -> str: ...

  @property
  def response_error_code() -> int: ...
  @response_error_code.setter
  def response_error_code(value) -> None: ...

# In class SMPP:
@property
def on_message_in() -> Callable[[SMPPMessageInEventParams], None]: ...
@on_message_in.setter
def on_message_in(event_hook: Callable[[SMPPMessageInEventParams], None]) -> None: ...

Remarks

When a message is received, the SMPP class will parse the sender's message into the SourceAddress, ScheduleDeliveryTime, ValidityPeriod, and Message fields.

The SourceAddress parameter is the address of the originator of the message.

The DestinationAddress parameter holds the address of the recipient.

The ScheduleDeliveryTime parameter is the delivery time which the short message is scheduled to be forwarded to another MC. This will be an empty string if not scheduled.

The ValidityPeriod parameter is only applicable if this short message is being forwarded to another MC. When this occurs, it specifies how long the receiving MC should retain the SM and continue trying to deliver it. This will be an empty string if the current validity period is unavailable.

The Message parameter is the plaintext portion of the message body.

If the incoming message is a part of a larger message (the message was split up into several parts), the MessagePartCount, MessagePart, and MessagePartReference parameters will be set. MessagePartCount will hold the total number of parts for the message. MessagePart will indicate the current part's location in the message to determine the order when re-assembling the message. This will be a value from 1 to MessagePartCount. MessagePartReference holds a reference value that will be the same across all parts for the message.

The ResponseErrorCode parameter may be set to return an error condition to the server. This corresponds to the command_status protocol level field of the response.

on_message_status Event

This event is fired upon receipt of a message.

Syntax

class SMPPMessageStatusEventParams(object):
  @property
  def message_id() -> str: ...

  @property
  def message_state() -> int: ...

  @property
  def message_error() -> int: ...

  @property
  def final_date() -> str: ...

# In class SMPP:
@property
def on_message_status() -> Callable[[SMPPMessageStatusEventParams], None]: ...
@on_message_status.setter
def on_message_status(event_hook: Callable[[SMPPMessageStatusEventParams], None]) -> None: ...

Remarks

When a check_message_status is called, the SMPP class will fetch the status of the message represented by MessageId from the server, parse the response and fire on_message_status.

MessageState represents the last known state the message was left in on the smpp_server. This code is version specific. For v3.4:


1	ENROUTE, the message is in enroute state.
2	DELIVERED, the message is delivered.
3	EXPIRED, the message validity period expired.
4	DELETED, the message has been deleted.
5	UNDELIVERABLE, the message is undeliverable.
6	ACCEPTED, the message has been read on behalf of subscriber by customer service.
7	UNKNOWN, the message is in invalid state.
8	REJECTED, the message is in a rejected state.

For v5.0:


0	SCHEDULED, the message is in scheduled for delivery, but has not yet been delivered.
1	ENROUTE, the message is in enroute state.
2	DELIVERED, the message is delivered.
3	EXPIRED, the message validity period expired.
4	DELETED, the message has been deleted.
5	UNDELIVERABLE, the message is undeliverable.
6	ACCEPTED, the message has been read on behalf of subscriber by customer service.
7	UNKNOWN, the message is in invalid state.
8	REJECTED, the message is in a rejected state.
9	SKIPPED, the message was accepted by not delivered.

MessageError will contain an error code representing any failure encountered during message delivery. This code may be vendor-specific.

FinalDate contains a human-readable string representing the date on which the message was delivered. If the message was not delivered, this parameter will be empty.

on_pi_trail Event

This event is fired once for each PDU sent between the client and server.

Syntax

class SMPPPITrailEventParams(object):
  @property
  def direction() -> int: ...

  @property
  def pdu() -> bytes: ...

  @property
  def command_length() -> int: ...

  @property
  def command_id() -> int: ...

  @property
  def command_description() -> str: ...

  @property
  def command_status() -> str: ...

  @property
  def sequence_number() -> int: ...

# In class SMPP:
@property
def on_pi_trail() -> Callable[[SMPPPITrailEventParams], None]: ...
@on_pi_trail.setter
def on_pi_trail(event_hook: Callable[[SMPPPITrailEventParams], None]) -> None: ...

Remarks

Whenever either the class or the smpp_server sends any data across the connection, the class will fire a on_pi_trail event containing that data. It will usually be in SMPP-PDU format.

A PDU will contain at least the SMPP header, which is always 16 bytes long. The first four bytes represent the total length of the PDU, including the 16-byte header. The next four bytes are the command id associated with the PDU. The command id of a response PDU is always the command id to which it is responding plus 0x80000000.

The class parses the values contained in the PDU header into the appropriate fields. The CommandLength, CommandId, CommandStatus, and SequenceNumber parameters contain these parsed values.

The third set of four bytes are the command status (status code) of the command. All originating commands will have a status code of 0x00000000, which will be ignored by the receiver. The field is only set by in response PDUs to indicate the status of the originating command. The final four bytes represent the sequence number of the command. All response PDUs will contain the same sequence number as the originating command.

on_ready_to_send Event

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

Syntax

class SMPPReadyToSendEventParams(object):
# In class SMPP:
@property
def on_ready_to_send() -> Callable[[SMPPReadyToSendEventParams], None]: ...
@on_ready_to_send.setter
def on_ready_to_send(event_hook: Callable[[SMPPReadyToSendEventParams], None]) -> None: ...

Remarks

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

on_ssl_server_authentication Event

Fired after the server presents its certificate to the client.

Syntax

class SMPPSSLServerAuthenticationEventParams(object):
  @property
  def cert_encoded() -> bytes: ...

  @property
  def cert_subject() -> str: ...

  @property
  def cert_issuer() -> str: ...

  @property
  def status() -> str: ...

  @property
  def accept() -> bool: ...
  @accept.setter
  def accept(value) -> None: ...

# In class SMPP:
@property
def on_ssl_server_authentication() -> Callable[[SMPPSSLServerAuthenticationEventParams], None]: ...
@on_ssl_server_authentication.setter
def on_ssl_server_authentication(event_hook: Callable[[SMPPSSLServerAuthenticationEventParams], None]) -> None: ...

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.

on_ssl_status Event

Shows the progress of the secure connection.

Syntax

class SMPPSSLStatusEventParams(object):
  @property
  def message() -> str: ...

# In class SMPP:
@property
def on_ssl_status() -> Callable[[SMPPSSLStatusEventParams], None]: ...
@on_ssl_status.setter
def on_ssl_status(event_hook: Callable[[SMPPSSLStatusEventParams], None]) -> None: ...

Remarks

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

SMPP Config Settings

The class accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the config method.

SMPP Config Settings

AddressRange: Specifies the addr_range parameter when binding.

The addr_range parameter is used when binding as a receiver or transceiver to specify a set of SME addresses serviced by the ESME client. A single SME address may also be specified in the address_range parameter. UNIX Regular Expression notation should be used to specify a range of addresses. Messages addressed to any destination in this range shall be routed to the ESME.

Note 1: For IP addresses, it is only possible to specify a single IP address. A range of IP addresses are not allowed. IP version 6.0 is not currently supported in this version of the protocol.

Note 2: It is likely that the addr_range field is not supported or deliberately ignored on most Message Centres. The reason for this is that most carriers will not allow an ESME control the message routing as this can carry the risk of mis-routing messages. In such circumstances, the ESME will be requested to set the field to NULL.

BinaryDataCoding: Whether or not to binary encode the message when DataCoding is set.

By default, when the DataCoding configuration setting is used, the component will treat the message as binary. This config can be set to false to send text user data instead.

BindAsReceiver: Causes the component to bind as a receiver.

Setting this will instruct the component to bind to the SMPP service as a receiver instead of a transceiver.

BindAsTransmitter: Causes the component to bind as a transmitter.

Setting this will instruct the component to bind to the SMPP service as a transmitter instead of a transceiver.

CustomTLV: Optional TLV parameters added after the mandatory parameters and before the payload.

The format of a TLV parameter is:

One two-byte integer containing the parameter type (tag).
One two-byte integer indicating the length of the data contained in this parameter.
The variable-length parameter data itself.

All of this must then be hex-encoded before setting the CustomTLV configuration setting.

For instance, to add a gn_lookup_userdata parameter, the type/tag is decimal 5633 (that's 0x1601 in hex), and the data in this example is "Hello World", which is 11 characters in length. So the TLV is: 5633 + 11 + "Hello World", or 0x16 0x01 0x00 0x0b and then the ASCII text "Hello World". When hex-encoded, this yields the string "1601000b48656c6c6f20576f726c64". This is the value you would then use to set the CustomTLV configuration setting. You are not restricted to only one optional parameter. Multiple TLV parameters may be concatenated together.

Note that this is advanced functionality, and the class does not verify the data in this configuration setting prior to transmission. After the class internally decodes the string back into binary, it is passed on inside the PDU as-is without validation or modification.

This setting is only applicable when using the send_message or send_data methods.

DataCoding: The data encoding mechanism to be used for the current message.

This value informs the message recipient about how the data was encoded. The possible values are as follows:


0	MC Specific encoding
1	IA5 (CCITT T.50)/ASCII (ANSI X3.4)
2	Octet unspecified (8-bit binary)
3	Latin 1 (ISO-8859-1)
4	Octet unspecified (8-bit binary)
5	JIS (X 0208-1990)
6	Cyrillic (ISO-8859-5)
7	Latin/Hebrew (ISO-8859-8)
8	UCS2 (ISO/IEC-10646)
9	Pictogram Encoding
10	ISO-2022-JP (Music Codes)
11	Reserved
12	Reserved 2
13	Extended Kanji JIS (X 0212-1990)
14	KS C 5601

DecodeHexStrings: Will decode an ascii hex-representation of binary data prior to transmission.

When this setting is True, data sent in the send_command method's Payload parameter, send_data method's Data parameter, or send_message method's Message parameter will be treated as an ASCII hex-representation of binary data, and will be decoded into raw binary before transmission. For instance, the string "48656C6C6F20576F726C64" will be decoded to "Hello World" when this configuration setting is True. If the string passed to the method parameter is not correctly hex-encoded the class will transmit unexpected results. This setting is False by default.

DestinationNPI: The Number Planning Indicator for the destination ESME.

When sending messages, this value is used to indicate the numbering plan the destination ESME. For a list of possible values, please see SourceNPI.

DestinationTON: The Type of Number for the destination ESME.

When sending messages, this value is used to indicate the Type of Number for the destination ESME. For a list of possible values, please see SourceTON.

DoSplitLargeMessages: Splits long messages and returns the UDH and Message Parts.

This configuration setting accepts a string which will be the long message to be split into parts. The UDH and Message Parts will be returned in hex, in the format below:

[UDH1],[MessagePart1];[UDH2],[MessagePart2];[UDH3],[MessagePart3]

HexString: A hex-encoded binary string to be sent to the current recipient.

When set, this configuration setting will cause the component to internally call send_message with the binary contents of the hex-encoded string. The return value when setting this property is the server-assigned id of the message. Querying this property will result in an empty string.

Note that when using HexString, DataCoding must be set to 8, and the value provided to this configuration setting should be the UTF-16 hex encoded message.

IncomingDestinationAddress: Returns the dest_addr field inside the received message.

This configuration setting is read-only, and is only valid inside the on_message_in event.

IntermediateNotification: Causes the component to request intermediate notification.

Setting this will request intermediate notification. By default, intermediate notification is not requested.

MaxCIMDSMSLength: Indicates the maximum SMS message length for the CIMD protocol.

This setting is only applicable when SplitLargeMessages is true and protocol is set to CIMD2. The setting controls the maximum size of SMS messages before they are split and has a default value of 160.

MaxSMSLength: Indicates the maximum SMS message length.

This setting is only applicable when SplitLargeMessages is true. The setting controls the maximum size of SMS messages before they are split and has a default value of 140.

MCReceipt: The Type of MC Delivery Receipt requested.

When sending a message, this value is used to determine whether or not an MC delivery receipt is requested. This value is 0 by default, and no receipt is requested. The possible values are:


0	No MC Delivery Receipt requested (default).
1	MC Delivery Receipt is requested after final delivery (success or failure).
2	MC Delivery Receipt is requested after a failed delivery.
3	MC Delivery Receipt is requested after a successful delivery.

MessageInReceiptedMessageId: The receipted_message_id field of an incoming deliver_sm PDU.

This value indicates the ID of the message being receipted in a MC Delivery Receipt. Note that this is only applicable within the on_message_in event.

MessageMode: The Type of Messaging Mode requested.

When sending a message, this value is used to specify the Messaging Mode in the outgoing request. For incoming messages this value can be queried from within the on_message_in event. The possible values are:


0	Default SMSC Mode (e.g. Store and Forward).
1	Datagram mode.
2	Forward (i.e. Transaction) mode.
3	Store and Forward mode.

MessageType: The Type of Message.

When sending a message, this value is used to specify the Message Type in the outgoing request. For incoming messages this value can be queried from within the on_message_in event. The possible values are:


0	Default message Type (i.e. normal message).
1	Short Message contains MC Delivery Receipt.
2	Short Message contains Intermediate Delivery Notification.

ProtocolId: The protocol identifier.

This config property allows control of the protocol identifier field value used in the outgoing messages.

SMEAcknowledgement: The Type of SME originated acknowledgement requested.

When sending a message, this value is used to determine whether or not an SME acknowledgement is requested. This value is 0 by default, and no acknowledgement is requested. The possible values are:


0	No SME acknowledgement requested (default).
1	SME delivery acknowledgement is requested.
2	SME manual/user acknowledgement is requested.
3	Both delivery and manual/user acknowledgement is requested.

SourceNPI: The Number Planning Indicator for the ESME.

When binding, this value is used to specify the numbering plan of the ESME. Mobiles tend to set this value to 1. Since most ESMEs are mobiles, the default value for SourceNPI is 1. The possible value are:


Unknown (0)
ISDN (1)
Data (3)
Telex (4)
LandMobile (6)
National (8)
Private (9)
ERMES (10)
Internet (14)
WAP (18)

SourceTON: The Type of Number for the ESME.

When binding, this value is used to indicate the Type of Number for the ESME address. The possible values are:


Unknown (0)	The number type is unknown
International (1)	The number includes the international trunk prefix
National (2)	The number includes the national trunk prefix
NetworkSpecific (3)	The number exists on a network that uses a specific delivery protocol
SubscriberNumber (4)	The number is just the subscriber number, without prefixes
Alphanumeric (5)	The address is human-readable (contains letters and digits)
Abbreviated (6)	The number is abbreviated

SplitLargeMessages: Determines whether large messages are split into multiple parts.

The default value is false. If set to true and the message is larger than MaxSMSLength (or MaxCIMDSMSLength) the message will automatically be split into parts when send_message is called. Note that this is only valid for GSM networks.

When receiving a message that has been split, the on_message_in event provides parameters to re-assemble the message.

SplitMessageMethod: Determines how large messages are split into multiple parts.

The component can split large messages using either the UDH or SAR method. The mode used is determined by this configuration option. The possible values are:


0	UDH (Default)
1	SAR

StatusReportRequest: Defines in what cases a status report is created by the server.

This is only applicable when protocol is set to smppCIMD2. This may be set to request that the server create a status report for the given conditions. The assigned value should be the sum of all desired conditions. For instance a value of 62 means that a report should be created for all events except for a temporary error. Possible flags are:


1	Temporary Error
2	Validity Period Expired
4	Delivery Failed
8	Delivery Successful
16	Message Cancelled
32	Message Deleted By The Operator

SubAddr: Defines a unique index for application instance.

This is useful for correct delivery of status reports when multiple instances of the same application are connected.

This setting is only applicable when protocol is set to smppCIMD2.

SynchronousSendCommand: Controls whether SendCommand behaves synchronously or asynchronously.

The default value is true which means send_command will not return until a response has been received. If set to false the class returns and does not wait for a response from the server.

SynchronousSendMessage: Controls whether SendMessage behaves synchronously or asynchronously.

The default value is true which means send_message will not return until a response has been received. If set to false the class returns the sequence number used and does not wait for a response from the server. You may then monitor the on_pi_trail event to match the response from the server to the sent message.

UseGSM7BitEncoding: Whether or not to use GSM 7-bit encoding.

When set to true (false by default), this will instruct the component to use 7-bit GSM encoding.

UseGSM7bitEncodingCompression: Whether to compress GSM 7-bit encoded characters.

When set to true (true by default), the component will compress GSM 7-bit encoded characters. Some devices do not support compression. Setting this to false may allow them to be displayed.

This setting only applies when UseGSM7BitEncoding is true.

WaitForBanner: Specifies the CIMD2 banner the class will wait for when connecting.

This is only applicable when protocol is set to smppCIMD2. If set, the class will wait for a banner containing this string to be returned by the server before proceeding with the connection.

TCPClient Config Settings

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

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

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

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

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

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

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

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

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

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

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

FirewallPort: The TCP port for the FirewallHost;.

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

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

FirewallType: Determines the type of firewall to connect through.

The appropriate values are as follows:


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

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

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

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

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

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

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

Note: This value is not applicable in macOS.

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

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

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

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

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

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

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

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

LingerTime: Time in seconds to have the connection linger.

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

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

The local_host 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.

If the class is connected, the local_host 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 class binds.

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

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

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


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 ssl_provider 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 on_ssl_status event, which will fire each time an SSL packet is sent or received.

Enabling this setting has no effect if ssl_provider 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 class will reuse the context if and only if the following criteria are met:

The target host name is the same.
The system cache entry has not expired (default timeout is 10 hours).
The application process that calls the function is the same.
The logon session is the same.
The instance of the class is the same.

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

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

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

The default value is:

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

SSLCACerts: A newline separated list of CA 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 class will check the Certificate Revocation List specified by the server certificate. If set to 1 or 2, the class will first obtain the list of CRL URLs from the server certificate's CRL distribution points extension. The class 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 class fails with an error.

When set to 0 (default) the CRL check will not be performed by the class. 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 class will use OCSP to check the validity of the server certificate. If set to 1 or 2, the class will first obtain the OCSP URL from the server certificate's OCSP extension. The class 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 class fails with an error.

When set to 0 (default) the class 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 on_ssl_status 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 class will pick all of the supported cipher suites. If SSLEnabledCipherSuites is set to any other value, only the specified cipher suites will be considered.

Multiple cipher suites are separated by semicolons.

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


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

SSLEnabledProtocols - TLS 1.3 Notes

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

In editions which are designed to run on Windows ssl_provider 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 True by default, but can be set to False to disable the extension.

This setting is only applicable when ssl_provider 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 on_ssl_server_authentication 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 on_ssl_server_authentication event.

If set to True all certificates returned by the server will be present in the Encoded parameter of the on_ssl_server_authentication 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 class will save the session secrets in the same format as the SSLKEYLOGFILE environment variable functionality used by most major browsers and tools such as Chrome, Firefox, and cURL. This file can then be used in tools such as Wireshark to decrypt TLS traffice for debugging purposes. When writing to this file the class will only append, it will not overwrite previous values.

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

SSLNegotiatedCipher: Returns the negotiated ciphersuite.

Returns the ciphersuite 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 ciphersuite strength.

Returns the strength of the ciphersuite 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 ciphersuite.

Returns the ciphersuite 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:


0x00000001	Ignore time validity status of certificate.
0x00000002	Ignore time validity status of CTL.
0x00000004	Ignore non-nested certificate times.
0x00000010	Allow unknown Certificate Authority.
0x00000020	Ignore wrong certificate usage.
0x00000100	Ignore unknown certificate revocation status.
0x00000200	Ignore unknown CTL signer revocation status.
0x00000400	Ignore unknown Certificate Authority revocation status.
0x00000800	Ignore unknown Root revocation status.
0x00008000	Allow test Root certificate.
0x00004000	Trust test Root certificate.
0x80000000	Ignore non-matching CN (certificate CN 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 ssl_provider is set to Internal and SSLEnabledProtocols is set to allow TLS 1.2.

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

The format of this value is a comma separated list of hash-signature combinations. For instance: component.SSLProvider = TCPClientSSLProviders.sslpInternal; component.Config("SSLEnabledProtocols=3072"); //TLS 1.2 component.Config("TLS12SignatureAlgorithms=sha256-rsa,sha256-dsa,sha1-rsa,sha1-dsa"); The default value for this 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 ssl_provider 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 class is activated the InBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

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

This is the size of an internal queue in the TCP/IP stack. You can increase or decrease its size depending on the amount of data that you will be sending. 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 class is activated the OutBufferSize reverts to its defined size. The same happens if you attempt to make it too large or too small.

Base Config Settings

BuildInfo: Information about the product's build.

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

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

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

The following is a list of valid code page identifiers:


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

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


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

LicenseInfo: Information about the current license.

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

Product: The product the license is for.
Product Key: The key the license was generated from.
License Source: Where the license was found (e.g., RuntimeLicense, License File).
License Type: The type of license installed (e.g., Royalty Free, Single Server).
Last Valid Build: The last valid build number for which the license will work.

MaskSensitive: Whether sensitive data is masked in log messages.

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

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

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

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

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

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

UseInternalSecurityAPI: Tells the class whether or not to use the system security libraries or an internal implementation.

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

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

On Windows, this setting is set to False by default. On Linux/macOS, this setting is set to True by default.

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

SMPP Errors

620   SMPP protocol error
621   You cannot change this property while connected
622   Server disconnected before responding
623   Field value out of range
624   Unsupported SMPP Version
625   Message parameter too long

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

TCPClient Errors

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

SSL Errors

270   Cannot load specified security library.
271   Cannot open certificate store.
272   Cannot find specified certificate.
273   Cannot acquire security credentials.
274   Cannot find certificate chain.
275   Cannot verify certificate chain.
276   Error during handshake.
280   Error verifying certificate.
281   Could not find client certificate.
282   Could not find server certificate.
283   Error encrypting data.
284   Error decrypting data.

TCP/IP Errors

10004   [10004] Interrupted system call.
10009   [10009] Bad file number.
10013   [10013] Access denied.
10014   [10014] Bad address.
10022   [10022] Invalid argument.
10024   [10024] Too many open files.
10035   [10035] Operation would block.
10036   [10036] Operation now in progress.
10037   [10037] Operation already in progress.
10038   [10038] Socket operation on non-socket.
10039   [10039] Destination address required.
10040   [10040] Message too long.
10041   [10041] Protocol wrong type for socket.
10042   [10042] Bad protocol option.
10043   [10043] Protocol not supported.
10044   [10044] Socket type not supported.
10045   [10045] Operation not supported on socket.
10046   [10046] Protocol family not supported.
10047   [10047] Address family not supported by protocol family.
10048   [10048] Address already in use.
10049   [10049] Can't assign requested address.
10050   [10050] Network is down.
10051   [10051] Network is unreachable.
10052   [10052] Net dropped connection or reset.
10053   [10053] Software caused connection abort.
10054   [10054] Connection reset by peer.
10055   [10055] No buffer space available.
10056   [10056] Socket is already connected.
10057   [10057] Socket is not connected.
10058   [10058] Can't send after socket shutdown.
10059   [10059] Too many references, can't splice.
10060   [10060] Connection timed out.
10061   [10061] Connection refused.
10062   [10062] Too many levels of symbolic links.
10063   [10063] File name too long.
10064   [10064] Host is down.
10065   [10065] No route to host.
10066   [10066] Directory not empty
10067   [10067] Too many processes.
10068   [10068] Too many users.
10069   [10069] Disc Quota Exceeded.
10070   [10070] Stale NFS file handle.
10071   [10071] Too many levels of remote in path.
10091   [10091] Network subsystem is unavailable.
10092   [10092] WINSOCK DLL Version out of range.
10093   [10093] Winsock not loaded yet.
11001   [11001] Host not found.
11002   [11002] Non-authoritative 'Host not found' (try again or check DNS setup).
11003   [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP.
11004   [11004] Valid name, no data record (check DNS setup).


	620 SMPP protocol error
	621 You cannot change this property while connected
	622 Server disconnected before responding
	623 Field value out of range
	624 Unsupported SMPP Version
	625 Message parameter too long


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


	270 Cannot load specified security library.
	271 Cannot open certificate store.
	272 Cannot find specified certificate.
	273 Cannot acquire security credentials.
	274 Cannot find certificate chain.
	275 Cannot verify certificate chain.
	276 Error during handshake.
	280 Error verifying certificate.
	281 Could not find client certificate.
	282 Could not find server certificate.
	283 Error encrypting data.
	284 Error decrypting data.


	10004 [10004] Interrupted system call.
	10009 [10009] Bad file number.
	10013 [10013] Access denied.
	10014 [10014] Bad address.
	10022 [10022] Invalid argument.
	10024 [10024] Too many open files.
	10035 [10035] Operation would block.
	10036 [10036] Operation now in progress.
	10037 [10037] Operation already in progress.
	10038 [10038] Socket operation on non-socket.
	10039 [10039] Destination address required.
	10040 [10040] Message too long.
	10041 [10041] Protocol wrong type for socket.
	10042 [10042] Bad protocol option.
	10043 [10043] Protocol not supported.
	10044 [10044] Socket type not supported.
	10045 [10045] Operation not supported on socket.
	10046 [10046] Protocol family not supported.
	10047 [10047] Address family not supported by protocol family.
	10048 [10048] Address already in use.
	10049 [10049] Can't assign requested address.
	10050 [10050] Network is down.
	10051 [10051] Network is unreachable.
	10052 [10052] Net dropped connection or reset.
	10053 [10053] Software caused connection abort.
	10054 [10054] Connection reset by peer.
	10055 [10055] No buffer space available.
	10056 [10056] Socket is already connected.
	10057 [10057] Socket is not connected.
	10058 [10058] Can't send after socket shutdown.
	10059 [10059] Too many references, can't splice.
	10060 [10060] Connection timed out.
	10061 [10061] Connection refused.
	10062 [10062] Too many levels of symbolic links.
	10063 [10063] File name too long.
	10064 [10064] Host is down.
	10065 [10065] No route to host.
	10066 [10066] Directory not empty
	10067 [10067] Too many processes.
	10068 [10068] Too many users.
	10069 [10069] Disc Quota Exceeded.
	10070 [10070] Stale NFS file handle.
	10071 [10071] Too many levels of remote in path.
	10091 [10091] Network subsystem is unavailable.
	10092 [10092] WINSOCK DLL Version out of range.
	10093 [10093] Winsock not loaded yet.
	11001 [11001] Host not found.
	11002 [11002] Non-authoritative 'Host not found' (try again or check DNS setup).
	11003 [11003] Non-recoverable errors: FORMERR, REFUSED, NOTIMP.
	11004 [11004] Valid name, no data record (check DNS setup).