SFTPServer Class

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The SFTPServer class provides server-side functionality for SFTP connections.

Syntax

class secureblackbox.SFTPServer

Remarks

SFTPServer is an implementation for SSH File Transfer Protocol server. It works over a secure SSH channel, and should not be confused with the FTP/FTPS protocol.

Property List

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

Method List

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

Event List

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

Config Settings

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

active Property

Specifies whether the SFTP server has started and ready to accept connections.

Syntax

def get_active() -> bool: ...

active = property(get_active, None)

Default Value

FALSE

Remarks

Check this property to find out whether the SFTP server is in active mode. Use start and stop methods to activate or deactivate the server.

This property is read-only.

auth_types Property

Defines allowed authentication types.

Syntax

def get_auth_types() -> int: ...
def set_auth_types(value: int) -> None: ...

auth_types = property(get_auth_types, set_auth_types)

Default Value

30

Remarks

Use this property to define which authentication types are allowed on the server, set of

base_dir Property

Specifies the server's base (root) directory.

Syntax

def get_base_dir() -> str: ...
def set_base_dir(value: str) -> None: ...

base_dir = property(get_base_dir, set_base_dir)

Default Value

""

Remarks

Use this property to set the base (root) directory on the server.

client_file_entry_a_time Property

Contains the last access time for this file, in UTC.

Syntax

def get_client_file_entry_a_time() -> str: ...
def set_client_file_entry_a_time(value: str) -> None: ...

client_file_entry_a_time = property(get_client_file_entry_a_time, set_client_file_entry_a_time)

Default Value

""

Remarks

Contains the last access time for this file, in UTC.

client_file_entry_c_time Property

Contains this file's creation time, in UTC.

Syntax

def get_client_file_entry_c_time() -> str: ...
def set_client_file_entry_c_time(value: str) -> None: ...

client_file_entry_c_time = property(get_client_file_entry_c_time, set_client_file_entry_c_time)

Default Value

""

Remarks

Contains this file's creation time, in UTC.

client_file_entry_directory Property

Specifies whether this entry is a directory.

Syntax

def get_client_file_entry_directory() -> bool: ...
def set_client_file_entry_directory(value: bool) -> None: ...

client_file_entry_directory = property(get_client_file_entry_directory, set_client_file_entry_directory)

Default Value

FALSE

Remarks

Specifies whether this entry is a directory.

client_file_entry_file_type Property

Specifies the type of this entry, one of the following: cftFile 0 cftDirectory 1 cftSymblink 2 cftSpecial 3 cftUnknown 4 cftSocket 5 cftCharDevice 6 cftBlockDevice 7 cftFIFO 8 .

Syntax

def get_client_file_entry_file_type() -> int: ...
def set_client_file_entry_file_type(value: int) -> None: ...

client_file_entry_file_type = property(get_client_file_entry_file_type, set_client_file_entry_file_type)

Default Value

4

Remarks

Specifies the type of this entry, one of the following:

client_file_entry_group_execute Property

Controls file execution permission for the group users.

Syntax

def get_client_file_entry_group_execute() -> bool: ...
def set_client_file_entry_group_execute(value: bool) -> None: ...

client_file_entry_group_execute = property(get_client_file_entry_group_execute, set_client_file_entry_group_execute)

Default Value

FALSE

Remarks

Controls file execution permission for the group users.

client_file_entry_group_read Property

Controls file read permission for the group users.

Syntax

def get_client_file_entry_group_read() -> bool: ...
def set_client_file_entry_group_read(value: bool) -> None: ...

client_file_entry_group_read = property(get_client_file_entry_group_read, set_client_file_entry_group_read)

Default Value

FALSE

Remarks

Controls file read permission for the group users.

client_file_entry_group_write Property

Controls file write permission for the group users.

Syntax

def get_client_file_entry_group_write() -> bool: ...
def set_client_file_entry_group_write(value: bool) -> None: ...

client_file_entry_group_write = property(get_client_file_entry_group_write, set_client_file_entry_group_write)

Default Value

FALSE

Remarks

Controls file write permission for the group users.

client_file_entry_handle Property

Allows to get or set a 'handle', a unique identifier of the underlying property object.

Syntax

def get_client_file_entry_handle() -> int: ...
def set_client_file_entry_handle(value: int) -> None: ...

client_file_entry_handle = property(get_client_file_entry_handle, set_client_file_entry_handle)

Default Value

0

Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. pdfSigner.setSigningCertHandle(certMgr.getCertHandle());

client_file_entry_long_name Property

Contains the long name of the file (human-readable, ftp-like).

Syntax

def get_client_file_entry_long_name() -> str: ...
def set_client_file_entry_long_name(value: str) -> None: ...

client_file_entry_long_name = property(get_client_file_entry_long_name, set_client_file_entry_long_name)

Default Value

""

Remarks

Contains the long name of the file (human-readable, ftp-like).

client_file_entry_m_time Property

Specifies the last modification time, in UTC.

Syntax

def get_client_file_entry_m_time() -> str: ...
def set_client_file_entry_m_time(value: str) -> None: ...

client_file_entry_m_time = property(get_client_file_entry_m_time, set_client_file_entry_m_time)

Default Value

""

Remarks

Specifies the last modification time, in UTC.

client_file_entry_name Property

Specifies the file name.

Syntax

def get_client_file_entry_name() -> str: ...
def set_client_file_entry_name(value: str) -> None: ...

client_file_entry_name = property(get_client_file_entry_name, set_client_file_entry_name)

Default Value

""

Remarks

Specifies the file name.

client_file_entry_other_execute Property

Controls file execution permission for other users (users that are neither owners, nor belong to the same group).

Syntax

def get_client_file_entry_other_execute() -> bool: ...
def set_client_file_entry_other_execute(value: bool) -> None: ...

client_file_entry_other_execute = property(get_client_file_entry_other_execute, set_client_file_entry_other_execute)

Default Value

FALSE

Remarks

Controls file execution permission for other users (users that are neither owners, nor belong to the same group).

client_file_entry_other_read Property

Controls file read permission for other users (users that are neither owners, nor belong to the same group).

Syntax

def get_client_file_entry_other_read() -> bool: ...
def set_client_file_entry_other_read(value: bool) -> None: ...

client_file_entry_other_read = property(get_client_file_entry_other_read, set_client_file_entry_other_read)

Default Value

FALSE

Remarks

Controls file read permission for other users (users that are neither owners, nor belong to the same group).

client_file_entry_other_write Property

Controls file write permission for other users (users that are neither owners, nor belong to the same group).

Syntax

def get_client_file_entry_other_write() -> bool: ...
def set_client_file_entry_other_write(value: bool) -> None: ...

client_file_entry_other_write = property(get_client_file_entry_other_write, set_client_file_entry_other_write)

Default Value

FALSE

Remarks

Controls file write permission for other users (users that are neither owners, nor belong to the same group).

client_file_entry_owner Property

Specifies the owner of the file/directory.

Syntax

def get_client_file_entry_owner() -> str: ...
def set_client_file_entry_owner(value: str) -> None: ...

client_file_entry_owner = property(get_client_file_entry_owner, set_client_file_entry_owner)

Default Value

""

Remarks

Specifies the owner of the file/directory.

client_file_entry_path Property

Contains the full path to the file.

Syntax

def get_client_file_entry_path() -> str: ...
def set_client_file_entry_path(value: str) -> None: ...

client_file_entry_path = property(get_client_file_entry_path, set_client_file_entry_path)

Default Value

""

Remarks

Contains the full path to the file.

client_file_entry_size Property

The size of the file in bytes.

Syntax

def get_client_file_entry_size() -> int: ...
def set_client_file_entry_size(value: int) -> None: ...

client_file_entry_size = property(get_client_file_entry_size, set_client_file_entry_size)

Default Value

0

Remarks

The size of the file in bytes.

client_file_entry_user_execute Property

Controls file execution permission for the file owner.

Syntax

def get_client_file_entry_user_execute() -> bool: ...
def set_client_file_entry_user_execute(value: bool) -> None: ...

client_file_entry_user_execute = property(get_client_file_entry_user_execute, set_client_file_entry_user_execute)

Default Value

FALSE

Remarks

Controls file execution permission for the file owner.

client_file_entry_user_read Property

Controls file read permission for the file owner.

Syntax

def get_client_file_entry_user_read() -> bool: ...
def set_client_file_entry_user_read(value: bool) -> None: ...

client_file_entry_user_read = property(get_client_file_entry_user_read, set_client_file_entry_user_read)

Default Value

FALSE

Remarks

Controls file read permission for the file owner.

client_file_entry_user_write Property

Controls file write permission for the file owner.

Syntax

def get_client_file_entry_user_write() -> bool: ...
def set_client_file_entry_user_write(value: bool) -> None: ...

client_file_entry_user_write = property(get_client_file_entry_user_write, set_client_file_entry_user_write)

Default Value

FALSE

Remarks

Controls file write permission for the file owner.

compression_level Property

Specifies the preferable compression level.

Syntax

def get_compression_level() -> int: ...
def set_compression_level(value: int) -> None: ...

compression_level = property(get_compression_level, set_compression_level)

Default Value

9

Remarks

Set this property before starting the server. Possible values range from 0 (lowest compression) to 9 (maximum compression). This property is ignored if compression wasn't accepted.

external_crypto_async_document_id Property

Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.

Syntax

def get_external_crypto_async_document_id() -> str: ...
def set_external_crypto_async_document_id(value: str) -> None: ...

external_crypto_async_document_id = property(get_external_crypto_async_document_id, set_external_crypto_async_document_id)

Default Value

""

Remarks

Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.

Use this property when working with multi-signature DCAuth requests and responses to uniquely identify documents signed within a larger batch. On the completion stage, this value helps the signing component identify the correct signature in the returned batch of responses.

If using batched requests, make sure to set this property to the same value on both the pre-signing (SignAsyncBegin) and completion (SignAsyncEnd) stages.

external_crypto_custom_params Property

Custom parameters to be passed to the signing service (uninterpreted).

Syntax

def get_external_crypto_custom_params() -> str: ...
def set_external_crypto_custom_params(value: str) -> None: ...

external_crypto_custom_params = property(get_external_crypto_custom_params, set_external_crypto_custom_params)

Default Value

""

Remarks

Custom parameters to be passed to the signing service (uninterpreted).

external_crypto_data Property

Additional data to be included in the async state and mirrored back by the requestor.

Syntax

def get_external_crypto_data() -> str: ...
def set_external_crypto_data(value: str) -> None: ...

external_crypto_data = property(get_external_crypto_data, set_external_crypto_data)

Default Value

""

Remarks

Additional data to be included in the async state and mirrored back by the requestor.

external_crypto_external_hash_calculation Property

Specifies whether the message hash is to be calculated at the external endpoint.

Syntax

def get_external_crypto_external_hash_calculation() -> bool: ...
def set_external_crypto_external_hash_calculation(value: bool) -> None: ...

external_crypto_external_hash_calculation = property(get_external_crypto_external_hash_calculation, set_external_crypto_external_hash_calculation)

Default Value

FALSE

Remarks

Specifies whether the message hash is to be calculated at the external endpoint. Please note that this mode is not supported by the DCAuth class.

If set to true, the class will pass a few kilobytes of to-be-signed data from the document to the OnExternalSign event. This only applies when SignExternal() is called.

external_crypto_hash_algorithm Property

Specifies the request's signature hash algorithm.

Syntax

def get_external_crypto_hash_algorithm() -> str: ...
def set_external_crypto_hash_algorithm(value: str) -> None: ...

external_crypto_hash_algorithm = property(get_external_crypto_hash_algorithm, set_external_crypto_hash_algorithm)

Default Value

"SHA256"

Remarks

Specifies the request's signature hash algorithm.

external_crypto_key_id Property

The ID of the pre-shared key used for DC request authentication.

Syntax

def get_external_crypto_key_id() -> str: ...
def set_external_crypto_key_id(value: str) -> None: ...

external_crypto_key_id = property(get_external_crypto_key_id, set_external_crypto_key_id)

Default Value

""

Remarks

The ID of the pre-shared key used for DC request authentication.

Asynchronous DCAuth-driven communication requires that parties authenticate each other with a secret pre-shared cryptographic key. This provides an extra protection layer for the protocol and diminishes the risk of the private key becoming abused by foreign parties. Use this property to provide the pre-shared key identifier, and use external_crypto_key_secret to pass the key itself.

The same KeyID/KeySecret pair should be used on the DCAuth side for the signing requests to be accepted.

Note: The KeyID/KeySecret scheme is very similar to the AuthKey scheme used in various Cloud service providers to authenticate users.

Example: signer.ExternalCrypto.KeyID = "MainSigningKey"; signer.ExternalCrypto.KeySecret = "abcdef0123456789";

external_crypto_key_secret Property

The pre-shared key used for DC request authentication.

Syntax

def get_external_crypto_key_secret() -> str: ...
def set_external_crypto_key_secret(value: str) -> None: ...

external_crypto_key_secret = property(get_external_crypto_key_secret, set_external_crypto_key_secret)

Default Value

""

Remarks

The pre-shared key used for DC request authentication. This key must be set and match the key used by the DCAuth counterpart for the scheme to work.

Read more about configuring authentication in the external_crypto_key_id topic.

external_crypto_method Property

Specifies the asynchronous signing method.

Syntax

def get_external_crypto_method() -> int: ...
def set_external_crypto_method(value: int) -> None: ...

external_crypto_method = property(get_external_crypto_method, set_external_crypto_method)

Default Value

0

Remarks

Specifies the asynchronous signing method. This is typically defined by the DC server capabilities and setup.

Available options:

external_crypto_mode Property

Specifies the external cryptography mode.

Syntax

def get_external_crypto_mode() -> int: ...
def set_external_crypto_mode(value: int) -> None: ...

external_crypto_mode = property(get_external_crypto_mode, set_external_crypto_mode)

Default Value

0

Remarks

Specifies the external cryptography mode.

Available options:

external_crypto_public_key_algorithm Property

Provide the public key algorithm here if the certificate is not available on the pre-signing stage.

Syntax

def get_external_crypto_public_key_algorithm() -> str: ...
def set_external_crypto_public_key_algorithm(value: str) -> None: ...

external_crypto_public_key_algorithm = property(get_external_crypto_public_key_algorithm, set_external_crypto_public_key_algorithm)

Default Value

""

Remarks

Provide the public key algorithm here if the certificate is not available on the pre-signing stage.

fips_mode Property

Reserved.

Syntax

def get_fips_mode() -> bool: ...
def set_fips_mode(value: bool) -> None: ...

fips_mode = property(get_fips_mode, set_fips_mode)

Default Value

FALSE

Remarks

This property is reserved for future use.

force_compression Property

This property specifies whether server explicitly requires data compression.

Syntax

def get_force_compression() -> bool: ...
def set_force_compression(value: bool) -> None: ...

force_compression = property(get_force_compression, set_force_compression)

Default Value

FALSE

Remarks

Set this property before starting the server. If it is set to true, the class will explicitly request data compression. If it is set to False, the class will support compression, although compression will be used only if the remote party doesn't support algorithms without compression.

host Property

Specifies server's host name.

Syntax

def get_host() -> str: ...
def set_host(value: str) -> None: ...

host = property(get_host, set_host)

Default Value

""

Remarks

Use this property to set the host name for this server.

key_fingerprint_sha1 Property

Contains the SHA-1 fingerprint (hash) of the key.

Syntax

def get_key_fingerprint_sha1() -> str: ...

key_fingerprint_sha1 = property(get_key_fingerprint_sha1, None)

Default Value

""

Remarks

Contains the SHA-1 fingerprint (hash) of the key.

This property is read-only.

key_fingerprint_sha256 Property

Contains the SHA-256 fingerprint (hash) of the key.

Syntax

def get_key_fingerprint_sha256() -> str: ...

key_fingerprint_sha256 = property(get_key_fingerprint_sha256, None)

Default Value

""

Remarks

Contains the SHA-256 fingerprint (hash) of the key.

This property is read-only.

key_handle Property

Allows to get or set a 'handle', a unique identifier of the underlying property object.

Syntax

def get_key_handle() -> int: ...

key_handle = property(get_key_handle, None)

Default Value

0

Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. pdfSigner.setSigningCertHandle(certMgr.getCertHandle());

This property is read-only.

max_sftp_version Property

Maximum SFTP version supported.

Syntax

def get_max_sftp_version() -> int: ...
def set_max_sftp_version(value: int) -> None: ...

max_sftp_version = property(get_max_sftp_version, set_max_sftp_version)

Default Value

6

Remarks

max_sftp_version and min_sftp_version properties control the range of SFTP protocol versions supported by this server.

min_sftp_version Property

Minimum SFTP version supported.

Syntax

def get_min_sftp_version() -> int: ...
def set_min_sftp_version(value: int) -> None: ...

min_sftp_version = property(get_min_sftp_version, set_min_sftp_version)

Default Value

0

Remarks

max_sftp_version and min_sftp_version properties control the range of SFTP protocol versions supported by this server.

pinned_client_address Property

The client's IP address.

Syntax

def get_pinned_client_address() -> str: ...

pinned_client_address = property(get_pinned_client_address, None)

Default Value

""

Remarks

The client's IP address.

This property is read-only.

pinned_client_client_key_algorithm Property

Specifies the client's key algorithm.

Syntax

def get_pinned_client_client_key_algorithm() -> str: ...

pinned_client_client_key_algorithm = property(get_pinned_client_client_key_algorithm, None)

Default Value

""

Remarks

Specifies the client's key algorithm.

This property is read-only.

pinned_client_client_key_bits Property

Specifies the length of the client's key.

Syntax

def get_pinned_client_client_key_bits() -> int: ...

pinned_client_client_key_bits = property(get_pinned_client_client_key_bits, None)

Default Value

0

Remarks

Specifies the length of the client's key.

This property is read-only.

pinned_client_client_key_fingerprint Property

The fingerprint (hash value) of the client's public key.

Syntax

def get_pinned_client_client_key_fingerprint() -> str: ...

pinned_client_client_key_fingerprint = property(get_pinned_client_client_key_fingerprint, None)

Default Value

""

Remarks

The fingerprint (hash value) of the client's public key.

This property is read-only.

pinned_client_client_software_name Property

Returns the name of the SSH software running on the client side.

Syntax

def get_pinned_client_client_software_name() -> str: ...

pinned_client_client_software_name = property(get_pinned_client_client_software_name, None)

Default Value

""

Remarks

Returns the name of the SSH software running on the client side.

This property is read-only.

pinned_client_close_reason Property

Contains the line sent by the client just before closing the connection.

Syntax

def get_pinned_client_close_reason() -> str: ...

pinned_client_close_reason = property(get_pinned_client_close_reason, None)

Default Value

""

Remarks

Contains the line sent by the client just before closing the connection. It might contain the error description if the connection was not closed gracefully.

This property is read-only.

pinned_client_compression_algorithm_inbound Property

Compression algorithm for the incoming traffic.

Syntax

def get_pinned_client_compression_algorithm_inbound() -> str: ...

pinned_client_compression_algorithm_inbound = property(get_pinned_client_compression_algorithm_inbound, None)

Default Value

""

Remarks

Compression algorithm for the incoming traffic.

This property is read-only.

pinned_client_compression_algorithm_outbound Property

Compression algorithm for the outgoing traffic.

Syntax

def get_pinned_client_compression_algorithm_outbound() -> str: ...

pinned_client_compression_algorithm_outbound = property(get_pinned_client_compression_algorithm_outbound, None)

Default Value

""

Remarks

Compression algorithm for the outgoing traffic.

This property is read-only.

pinned_client_encryption_algorithm_inbound Property

Encryption algorithm for the incoming traffic.

Syntax

def get_pinned_client_encryption_algorithm_inbound() -> str: ...

pinned_client_encryption_algorithm_inbound = property(get_pinned_client_encryption_algorithm_inbound, None)

Default Value

""

Remarks

Encryption algorithm for the incoming traffic.

This property is read-only.

pinned_client_encryption_algorithm_outbound Property

Encryption algorithm for the outgoing traffic.

Syntax

def get_pinned_client_encryption_algorithm_outbound() -> str: ...

pinned_client_encryption_algorithm_outbound = property(get_pinned_client_encryption_algorithm_outbound, None)

Default Value

""

Remarks

Encryption algorithm for the outgoing traffic.

This property is read-only.

pinned_client_id Property

The client connection's unique identifier.

Syntax

def get_pinned_client_id() -> int: ...

pinned_client_id = property(get_pinned_client_id, None)

Default Value

-1

Remarks

The client connection's unique identifier. This value is used throughout to refer to a particular client connection.

This property is read-only.

pinned_client_inbound_encryption_key_bits Property

Specifies the length of the key used to encrypt the incoming traffic.

Syntax

def get_pinned_client_inbound_encryption_key_bits() -> int: ...

pinned_client_inbound_encryption_key_bits = property(get_pinned_client_inbound_encryption_key_bits, None)

Default Value

0

Remarks

Specifies the length of the key used to encrypt the incoming traffic.

This property is read-only.

pinned_client_kex_algorithm Property

The key exchange algorithm used during the SSH handshake.

Syntax

def get_pinned_client_kex_algorithm() -> str: ...

pinned_client_kex_algorithm = property(get_pinned_client_kex_algorithm, None)

Default Value

""

Remarks

The key exchange algorithm used during the SSH handshake.

This property is read-only.

pinned_client_kex_bits Property

The number of bits used by the key exchange algorithm.

Syntax

def get_pinned_client_kex_bits() -> int: ...

pinned_client_kex_bits = property(get_pinned_client_kex_bits, None)

Default Value

0

Remarks

The number of bits used by the key exchange algorithm.

This property is read-only.

pinned_client_kex_lines Property

The contents of the received KexInit packet.

Syntax

def get_pinned_client_kex_lines() -> str: ...

pinned_client_kex_lines = property(get_pinned_client_kex_lines, None)

Default Value

""

Remarks

The contents of the received KexInit packet.

KexInit packet contains the list of algorithms supported by the remote party.

This property is read-only.

pinned_client_mac_algorithm_inbound Property

MAC algorithm used for the incoming connection.

Syntax

def get_pinned_client_mac_algorithm_inbound() -> str: ...

pinned_client_mac_algorithm_inbound = property(get_pinned_client_mac_algorithm_inbound, None)

Default Value

""

Remarks

MAC algorithm used for the incoming connection.

This property is read-only.

pinned_client_mac_algorithm_outbound Property

MAC algorithm used for outbound connection.

Syntax

def get_pinned_client_mac_algorithm_outbound() -> str: ...

pinned_client_mac_algorithm_outbound = property(get_pinned_client_mac_algorithm_outbound, None)

Default Value

""

Remarks

MAC algorithm used for outbound connection.

This property is read-only.

pinned_client_outbound_encryption_key_bits Property

Specifies the length of the key used to encrypt the outgoing traffic.

Syntax

def get_pinned_client_outbound_encryption_key_bits() -> int: ...

pinned_client_outbound_encryption_key_bits = property(get_pinned_client_outbound_encryption_key_bits, None)

Default Value

0

Remarks

Specifies the length of the key used to encrypt the outgoing traffic.

This property is read-only.

pinned_client_port Property

The remote port of the client connection.

Syntax

def get_pinned_client_port() -> int: ...

pinned_client_port = property(get_pinned_client_port, None)

Default Value

0

Remarks

The remote port of the client connection.

This property is read-only.

pinned_client_public_key_algorithm Property

Specifies the public key algorithm which was used during the SSH handshake.

Syntax

def get_pinned_client_public_key_algorithm() -> str: ...

pinned_client_public_key_algorithm = property(get_pinned_client_public_key_algorithm, None)

Default Value

""

Remarks

Specifies the public key algorithm which was used during the SSH handshake.

This property is read-only.

pinned_client_server_key_bits Property

Specifies the number of bits in the server's key.

Syntax

def get_pinned_client_server_key_bits() -> int: ...

pinned_client_server_key_bits = property(get_pinned_client_server_key_bits, None)

Default Value

0

Remarks

Specifies the number of bits in the server's key.

This property is read-only.

pinned_client_server_key_fingerprint Property

The fingerprint (hash value) of the server's public key.

Syntax

def get_pinned_client_server_key_fingerprint() -> str: ...

pinned_client_server_key_fingerprint = property(get_pinned_client_server_key_fingerprint, None)

Default Value

""

Remarks

The fingerprint (hash value) of the server's public key.

This property is read-only.

pinned_client_total_bytes_received Property

Returns the total number of bytes received over this connection.

Syntax

def get_pinned_client_total_bytes_received() -> int: ...

pinned_client_total_bytes_received = property(get_pinned_client_total_bytes_received, None)

Default Value

0

Remarks

Returns the total number of bytes received over this connection.

This property is read-only.

pinned_client_total_bytes_sent Property

Returns the total number of bytes sent over this connection.

Syntax

def get_pinned_client_total_bytes_sent() -> int: ...

pinned_client_total_bytes_sent = property(get_pinned_client_total_bytes_sent, None)

Default Value

0

Remarks

Returns the total number of bytes sent over this connection.

This property is read-only.

pinned_client_version Property

Specifies SSH protocol version.

Syntax

def get_pinned_client_version() -> int: ...

pinned_client_version = property(get_pinned_client_version, None)

Default Value

2

Remarks

Specifies SSH protocol version.

This property is read-only.

port Property

Specifies the listening port number.

Syntax

def get_port() -> int: ...
def set_port(value: int) -> None: ...

port = property(get_port, set_port)

Default Value

22

Remarks

Use this property to specify on which port the class will be listening to client connections.

read_only Property

Specifies whether files on the server are read-only.

Syntax

def get_read_only() -> bool: ...
def set_read_only(value: bool) -> None: ...

read_only = property(get_read_only, set_read_only)

Default Value

FALSE

Remarks

Set this property to true to deny all client requests to change files on the server.

server_key_count Property

The number of records in the ServerKey arrays.

Syntax

def get_server_key_count() -> int: ...
def set_server_key_count(value: int) -> None: ...

server_key_count = property(get_server_key_count, set_server_key_count)

Default Value

0

Remarks

This property controls the size of the following arrays:

• server_key_algorithm
• server_key_bits
• server_key_fingerprint_md5
• server_key_fingerprint_sha1
• server_key_handle

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

server_key_algorithm Property

Specifies the key algorithm.

Syntax

def get_server_key_algorithm(server_key_index: int) -> str: ...

Default Value

""

Remarks

Specifies the key algorithm.

The server_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the server_key_count property.

This property is read-only.

server_key_bits Property

The number of bits in the key: the more the better, 2048 or 4096 are typical values.

Syntax

def get_server_key_bits(server_key_index: int) -> int: ...

Default Value

0

Remarks

The number of bits in the key: the more the better, 2048 or 4096 are typical values.

The server_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the server_key_count property.

This property is read-only.

server_key_fingerprint_md5 Property

Contains the MD5 fingerprint (hash) of the key.

Syntax

def get_server_key_fingerprint_md5(server_key_index: int) -> str: ...

Default Value

""

Remarks

Contains the MD5 fingerprint (hash) of the key.

The server_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the server_key_count property.

This property is read-only.

server_key_fingerprint_sha1 Property

Contains the SHA-1 fingerprint (hash) of the key.

Syntax

def get_server_key_fingerprint_sha1(server_key_index: int) -> str: ...

Default Value

""

Remarks

Contains the SHA-1 fingerprint (hash) of the key.

The server_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the server_key_count property.

This property is read-only.

server_key_handle Property

Allows to get or set a 'handle', a unique identifier of the underlying property object.

Syntax

def get_server_key_handle(server_key_index: int) -> int: ...
def set_server_key_handle(server_key_index: int, value: int) -> None: ...

Default Value

0

Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. pdfSigner.setSigningCertHandle(certMgr.getCertHandle());

The server_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the server_key_count property.

socket_incoming_speed_limit Property

The maximum number of bytes to read from the socket, per second.

Syntax

def get_socket_incoming_speed_limit() -> int: ...
def set_socket_incoming_speed_limit(value: int) -> None: ...

socket_incoming_speed_limit = property(get_socket_incoming_speed_limit, set_socket_incoming_speed_limit)

Default Value

0

Remarks

The maximum number of bytes to read from the socket, per second.

socket_local_address Property

The local network interface to bind the socket to.

Syntax

def get_socket_local_address() -> str: ...
def set_socket_local_address(value: str) -> None: ...

socket_local_address = property(get_socket_local_address, set_socket_local_address)

Default Value

""

Remarks

The local network interface to bind the socket to.

socket_local_port Property

The local port number to bind the socket to.

Syntax

def get_socket_local_port() -> int: ...
def set_socket_local_port(value: int) -> None: ...

socket_local_port = property(get_socket_local_port, set_socket_local_port)

Default Value

0

Remarks

The local port number to bind the socket to.

socket_outgoing_speed_limit Property

The maximum number of bytes to write to the socket, per second.

Syntax

def get_socket_outgoing_speed_limit() -> int: ...
def set_socket_outgoing_speed_limit(value: int) -> None: ...

socket_outgoing_speed_limit = property(get_socket_outgoing_speed_limit, set_socket_outgoing_speed_limit)

Default Value

0

Remarks

The maximum number of bytes to write to the socket, per second.

socket_timeout Property

The maximum period of waiting, in milliseconds, after which the socket operation is considered unsuccessful.

Syntax

def get_socket_timeout() -> int: ...
def set_socket_timeout(value: int) -> None: ...

socket_timeout = property(get_socket_timeout, set_socket_timeout)

Default Value

60000

Remarks

The maximum period of waiting, in milliseconds, after which the socket operation is considered unsuccessful.

If Timeout is set to 0, a socket operation will expire after the system-default timeout (2 hrs 8 min for TCP stack).

socket_use_ipv6 Property

Enables or disables IP protocol version 6.

Syntax

def get_socket_use_ipv6() -> bool: ...
def set_socket_use_ipv6(value: bool) -> None: ...

socket_use_ipv6 = property(get_socket_use_ipv6, set_socket_use_ipv6)

Default Value

FALSE

Remarks

Enables or disables IP protocol version 6.

ssh_settings_auto_adjust_ciphers Property

Whether the SSH client should adjust its list of supported ciphers 'on-the-fly' for greater compatibility with the server it is connecting to.

Syntax

def get_ssh_settings_auto_adjust_ciphers() -> bool: ...
def set_ssh_settings_auto_adjust_ciphers(value: bool) -> None: ...

ssh_settings_auto_adjust_ciphers = property(get_ssh_settings_auto_adjust_ciphers, set_ssh_settings_auto_adjust_ciphers)

Default Value

TRUE

Remarks

Whether the SSH client should adjust its list of supported ciphers 'on-the-fly' for greater compatibility with the server it is connecting to.

ssh_settings_base_configuration Property

Allows to choose base configuration of SSH settings, tuned up for different purposes such as high security or higher compatibility.

Syntax

def get_ssh_settings_base_configuration() -> int: ...
def set_ssh_settings_base_configuration(value: int) -> None: ...

ssh_settings_base_configuration = property(get_ssh_settings_base_configuration, set_ssh_settings_base_configuration)

Default Value

0

Remarks

Allows to choose base configuration of SSH settings, tuned up for different purposes such as high security or higher compatibility.

ssh_settings_compression_algorithms Property

A list of session compression algorithms separated with commas or semicolons.

Syntax

def get_ssh_settings_compression_algorithms() -> str: ...
def set_ssh_settings_compression_algorithms(value: str) -> None: ...

ssh_settings_compression_algorithms = property(get_ssh_settings_compression_algorithms, set_ssh_settings_compression_algorithms)

Default Value

""

Remarks

A list of session compression algorithms separated with commas or semicolons. Each algorithm in the list may be prefixed with a minus sign (-) to indicate that the algorithm should be disabled rather than enabled. Besides the specific algorithm names, this property supports the all (and -all) aliases that allow to blanketly enable or disable all compression algorithms at once.

Note: the list of algorithms provided to this property alters the baseline list of compression algorithms pre-configured for this component. Remember to start your algorithm string with -all; if you need to only enable a specific fixed set of algorithms. The list of supported compression algorithms is provided below:

• none
• zlib
• zlib@openssh.com

ssh_settings_compression_level Property

Possible values for the Compression Level range from 0 (minimum compression) to 9 (maximum compression).

Syntax

def get_ssh_settings_compression_level() -> int: ...
def set_ssh_settings_compression_level(value: int) -> None: ...

ssh_settings_compression_level = property(get_ssh_settings_compression_level, set_ssh_settings_compression_level)

Default Value

6

Remarks

Possible values for the Compression Level range from 0 (minimum compression) to 9 (maximum compression). This setting is ignored if compression wasn't accepted.

ssh_settings_default_window_size Property

The SSH window size specifies how many bytes the client can send to the server in the command channel without obtaining pre-authorization for the further send from the server.

Syntax

def get_ssh_settings_default_window_size() -> int: ...
def set_ssh_settings_default_window_size(value: int) -> None: ...

ssh_settings_default_window_size = property(get_ssh_settings_default_window_size, set_ssh_settings_default_window_size)

Default Value

2048000

Remarks

The SSH window size specifies how many bytes the client can send to the server in the command channel without obtaining pre-authorization for the further send from the server.

ssh_settings_encryption_algorithms Property

A list of session encryption algorithms separated with commas or semicolons.

Syntax

def get_ssh_settings_encryption_algorithms() -> str: ...
def set_ssh_settings_encryption_algorithms(value: str) -> None: ...

ssh_settings_encryption_algorithms = property(get_ssh_settings_encryption_algorithms, set_ssh_settings_encryption_algorithms)

Default Value

""

Remarks

A list of session encryption algorithms separated with commas or semicolons. Each algorithm in the list may be prefixed with a minus sign (-) to indicate that the algorithm should be disabled rather than enabled. Besides the specific algorithm names, this property supports the all (and -all) aliases that allow to blanketly enable or disable all encryption algorithms at once.

Note: the list of algorithms provided to this property alters the baseline list of encryption algorithms pre-configured for this component. Remember to start your algorithm string with -all; if you need to only enable a specific fixed set of algorithms. The list of supported encryption algorithms is provided below:

• 3des-cbc
• blowfish-cbc
• twofish256-cbc
• twofish192-cbc
• twofish128-cbc
• aes256-cbc
• aes192-cbc
• aes128-cbc
• serpent256-cbc
• serpent192-cbc
• serpent128-cbc
• arcfour
• idea-cbc
• cast128-cbc
• none
• des-cbc
• aes128-ctr
• aes192-ctr
• aes256-ctr
• 3des-ctr
• blowfish-ctr
• twofish128-ctr
• twofish192-ctr
• twofish256-ctr
• serpent128-ctr
• serpent192-ctr
• serpent256-ctr
• idea-ctr
• cast128-ctr
• arcfour128
• arcfour256
• aes128-gcm
• aes256-gcm
• aes128-gcm@openssh.com
• aes256-gcm@openssh.com
• chacha20-poly1305
• chacha20-poly1305@openssh.com

ssh_settings_force_compression Property

Whether the SSH client should explicitly request compression.

Syntax

def get_ssh_settings_force_compression() -> bool: ...
def set_ssh_settings_force_compression(value: bool) -> None: ...

ssh_settings_force_compression = property(get_ssh_settings_force_compression, set_ssh_settings_force_compression)

Default Value

FALSE

Remarks

Whether the SSH client should explicitly request compression.

If ForceCompression is False, compression will be used only if the server doesn't support algorithms without compression.

ssh_settings_gss_auth_types Property

A comma-separated list of authentication types.

Syntax

def get_ssh_settings_gss_auth_types() -> str: ...
def set_ssh_settings_gss_auth_types(value: str) -> None: ...

ssh_settings_gss_auth_types = property(get_ssh_settings_gss_auth_types, set_ssh_settings_gss_auth_types)

Default Value

""

Remarks

A comma-separated list of authentication types. Two types are currently supported: gssapi-with-mic and gssapi-keyex.

ssh_settings_gss_delegate_creds Property

Switches credential delegation on or off.

Syntax

def get_ssh_settings_gss_delegate_creds() -> bool: ...
def set_ssh_settings_gss_delegate_creds(value: bool) -> None: ...

ssh_settings_gss_delegate_creds = property(get_ssh_settings_gss_delegate_creds, set_ssh_settings_gss_delegate_creds)

Default Value

FALSE

Remarks

Switches credential delegation on or off.

ssh_settings_gss_hostname Property

The GSS host name, in form of a FQDN (e.

Syntax

def get_ssh_settings_gss_hostname() -> str: ...
def set_ssh_settings_gss_hostname(value: str) -> None: ...

ssh_settings_gss_hostname = property(get_ssh_settings_gss_hostname, set_ssh_settings_gss_hostname)

Default Value

""

Remarks

The GSS host name, in form of a FQDN (e.g. hostname.com), a principal name (e.g. 'host@hostname.com), or a cross-real ticket-granting ticket (e.g. krbtgt/test.com@example.com).

ssh_settings_gss_lib Property

A path to the GSS-API library (DLL or SO).

Syntax

def get_ssh_settings_gss_lib() -> str: ...
def set_ssh_settings_gss_lib(value: str) -> None: ...

ssh_settings_gss_lib = property(get_ssh_settings_gss_lib, set_ssh_settings_gss_lib)

Default Value

""

Remarks

A path to the GSS-API library (DLL or SO).

ssh_settings_gss_mechanisms Property

A comma-separated list of GSS mechanisms to use.

Syntax

def get_ssh_settings_gss_mechanisms() -> str: ...
def set_ssh_settings_gss_mechanisms(value: str) -> None: ...

ssh_settings_gss_mechanisms = property(get_ssh_settings_gss_mechanisms, set_ssh_settings_gss_mechanisms)

Default Value

""

Remarks

A comma-separated list of GSS mechanisms to use. Two values are currently supported: lib and SSPI.

ssh_settings_gss_protocols Property

A comma-separated list of SSPI protocols.

Syntax

def get_ssh_settings_gss_protocols() -> str: ...
def set_ssh_settings_gss_protocols(value: str) -> None: ...

ssh_settings_gss_protocols = property(get_ssh_settings_gss_protocols, set_ssh_settings_gss_protocols)

Default Value

""

Remarks

A comma-separated list of SSPI protocols. Two protocols are currently supported: kerberos and NTLM.

ssh_settings_handshake_timeout Property

Specifies the maximal time for the SSH handshake to proceed, in seconds.

Syntax

def get_ssh_settings_handshake_timeout() -> int: ...
def set_ssh_settings_handshake_timeout(value: int) -> None: ...

ssh_settings_handshake_timeout = property(get_ssh_settings_handshake_timeout, set_ssh_settings_handshake_timeout)

Default Value

45

Remarks

Specifies the maximal time for the SSH handshake to proceed, in seconds. If the handshake is not completed within this period, the session is aborted.

ssh_settings_kex_algorithms Property

A list of key exchange algorithms separated with commas or semicolons.

Syntax

def get_ssh_settings_kex_algorithms() -> str: ...
def set_ssh_settings_kex_algorithms(value: str) -> None: ...

ssh_settings_kex_algorithms = property(get_ssh_settings_kex_algorithms, set_ssh_settings_kex_algorithms)

Default Value

""

Remarks

A list of key exchange algorithms separated with commas or semicolons. Each algorithm in the list may be prefixed with a minus sign (-) to indicate that the algorithm should be disabled rather than enabled. Besides the specific algorithm names, this property supports the all (and -all) aliases that allow to blanketly enable or disable all key exchange algorithms at once.

Note: the list of algorithms provided to this property alters the baseline list of key exchange algorithms pre-configured for this component. Remember to start your algorithm string with -all; if you need to only enable a specific fixed set of algorithms. The list of supported kex algorithms is provided below:

• diffie-hellman-group-exchange-sha1
• diffie-hellman-group1-sha1
• diffie-hellman-group14-sha1
• diffie-hellman-group-exchange-sha256
• rsa1024-sha1
• rsa2048-sha256
• ecdh-sha2-nistp256
• ecdh-sha2-nistp384
• ecdh-sha2-nistp521
• ecdh-sha2-nistk163
• ecdh-sha2-nistp192
• ecdh-sha2-nistp224
• ecdh-sha2-nistk233
• ecdh-sha2-nistb233
• ecdh-sha2-nistk283
• ecdh-sha2-nistk409
• ecdh-sha2-nistb409
• ecdh-sha2-nistt571
• ecdh-sha2-curve25519
• curve25519-sha256@libssh.org
• curve448-sha512@libssh.org
• diffie-hellman-group14-sha256
• diffie-hellman-group15-sha512
• diffie-hellman-group16-sha512
• diffie-hellman-group17-sha512
• diffie-hellman-group18-sha512

ssh_settings_mac_algorithms Property

A list of MAC (for message authentication code ) algorithms separated with commas or semicolons.

Syntax

def get_ssh_settings_mac_algorithms() -> str: ...
def set_ssh_settings_mac_algorithms(value: str) -> None: ...

ssh_settings_mac_algorithms = property(get_ssh_settings_mac_algorithms, set_ssh_settings_mac_algorithms)

Default Value

""

Remarks

A list of MAC (for message authentication code) algorithms separated with commas or semicolons. Each algorithm in the list may be prefixed with a minus sign (-) to indicate that the algorithm should be disabled rather than enabled. Besides the specific algorithm names, this property supports the all (and -all) aliases that allow to blanketly enable or disable all MAC algorithms at once.

Note: the list of algorithms provided to this property alters the baseline list of MAC algorithms pre-configured for this component. Remember to start your algorithm string with -all; if you need to only enable a specific fixed set of algorithms. The list of supported MAC algorithms is provided below:

• hmac-sha1
• hmac-sha1-96
• hmac-md5
• hmac-md5-96
• none
• hmac-ripemd160
• hmac-ripemd
• hmac-ripemd160@openssh.com
• hmac-sha256@ssh.com
• hmac-sha256-96@ssh.com
• umac-32@openssh.com
• umac-64@openssh.com
• umac-96@openssh.com
• umac-128@openssh.com
• hmac-sha2-256
• hmac-sha2-512
• aes128-gcm
• aes256-gcm
• chacha20-poly1305@openssh.com
• hmac-sha2-256-etm@openssh.com
• hmac-sha2-512-etm@openssh.com

ssh_settings_max_ssh_packet_size Property

Specifies the maximum length of one SSH packet in bytes.

Syntax

def get_ssh_settings_max_ssh_packet_size() -> int: ...
def set_ssh_settings_max_ssh_packet_size(value: int) -> None: ...

ssh_settings_max_ssh_packet_size = property(get_ssh_settings_max_ssh_packet_size, set_ssh_settings_max_ssh_packet_size)

Default Value

262144

Remarks

Specifies the maximum length of one SSH packet in bytes.

ssh_settings_min_window_size Property

Specifies the minimal internal window size.

Syntax

def get_ssh_settings_min_window_size() -> int: ...
def set_ssh_settings_min_window_size(value: int) -> None: ...

ssh_settings_min_window_size = property(get_ssh_settings_min_window_size, set_ssh_settings_min_window_size)

Default Value

2048

Remarks

Specifies the minimal internal window size. When the minimal window size is reached, the 'window extension' request is sent to the server. This request notifies the server that the window was extended, and it can send more data.

ssh_settings_obfuscate_handshake Property

Enables or disables handshake obfuscation.

Syntax

def get_ssh_settings_obfuscate_handshake() -> bool: ...
def set_ssh_settings_obfuscate_handshake(value: bool) -> None: ...

ssh_settings_obfuscate_handshake = property(get_ssh_settings_obfuscate_handshake, set_ssh_settings_obfuscate_handshake)

Default Value

FALSE

Remarks

Enables or disables handshake obfuscation.

ssh_settings_obfuscation_password Property

Specifies the password used to encrypt the handshake when ObfuscateHandshake is set.

Syntax

def get_ssh_settings_obfuscation_password() -> str: ...
def set_ssh_settings_obfuscation_password(value: str) -> None: ...

ssh_settings_obfuscation_password = property(get_ssh_settings_obfuscation_password, set_ssh_settings_obfuscation_password)

Default Value

""

Remarks

Specifies the password used to encrypt the handshake when ObfuscateHandshake is set.

ssh_settings_public_key_algorithms Property

A list of public key algorithms separated with commas or semicolons.

Syntax

def get_ssh_settings_public_key_algorithms() -> str: ...
def set_ssh_settings_public_key_algorithms(value: str) -> None: ...

ssh_settings_public_key_algorithms = property(get_ssh_settings_public_key_algorithms, set_ssh_settings_public_key_algorithms)

Default Value

""

Remarks

A list of public key algorithms separated with commas or semicolons. Each algorithm in the list may be prefixed with a minus sign (-) to indicate that the algorithm should be disabled rather than enabled. Besides the specific algorithm names, this property supports the all (and -all) aliases that allow to blanketly enable or disable all public key algorithms at once.

Note: the list of algorithms provided to this property alters the baseline list of public key algorithms pre-configured for this component. Remember to start your algorithm string with -all; if you need to only enable a specific fixed set of algorithms. The list of supported public key algorithms is provided below:

• ssh-dss
• ssh-rsa
• x509v3-sign-rsa
• x509v3-sign-dss
• spki-sign-rsa,
• spki-sign-dss
• pgp-sign-rsa
• pgp-sign-dss
• ecdsa-sha2-nistp256
• ecdsa-sha2-nistp384
• ecdsa-sha2-nistp521
• ecdsa-sha2-nistk163
• ecdsa-sha2-nistp192
• ecdsa-sha2-nistp224
• ecdsa-sha2-nistk233
• ecdsa-sha2-nistb233
• ecdsa-sha2-nistk283
• ecdsa-sha2-nistk409
• ecdsa-sha2-nistb409
• ecdsa-sha2-nistt571,
• ecdsa-sha2-curve25519
• x509v3-ssh-rsa
• x509v3-ssh-dss
• x509v3-rsa2048-sha256
• x509v3-ecdsa-sha2-nistp256
• x509v3-ecdsa-sha2-nistp384
• x509v3-ecdsa-sha2-nistp521
• x509v3-ecdsa-sha2-nistk163
• x509v3-ecdsa-sha2-nistp192
• x509v3-ecdsa-sha2-nistp224
• x509v3-ecdsa-sha2-nistk233
• x509v3-ecdsa-sha2-nistb233
• x509v3-ecdsa-sha2-nistk283
• x509v3-ecdsa-sha2-nistk409
• x509v3-ecdsa-sha2-nistb409
• x509v3-ecdsa-sha2-nistt571
• x509v3-ecdsa-sha2-curve25519
• ssh-ed25519
• ssh-ed448
• rsa-sha2-256
• rsa-sha2-512

ssh_settings_request_password_change Property

Whether to request a password change when connecting.

Syntax

def get_ssh_settings_request_password_change() -> bool: ...
def set_ssh_settings_request_password_change(value: bool) -> None: ...

ssh_settings_request_password_change = property(get_ssh_settings_request_password_change, set_ssh_settings_request_password_change)

Default Value

FALSE

Remarks

Whether to request a password change when connecting.

ssh_settings_software_name Property

The name to be used by the class to identify itself.

Syntax

def get_ssh_settings_software_name() -> str: ...
def set_ssh_settings_software_name(value: str) -> None: ...

ssh_settings_software_name = property(get_ssh_settings_software_name, set_ssh_settings_software_name)

Default Value

"SecureBlackbox"

Remarks

The name to be used by the component to identify itself.

ssh_settings_trust_all_keys Property

Enables or disables explicit trust to all server keys.

Syntax

def get_ssh_settings_trust_all_keys() -> bool: ...
def set_ssh_settings_trust_all_keys(value: bool) -> None: ...

ssh_settings_trust_all_keys = property(get_ssh_settings_trust_all_keys, set_ssh_settings_trust_all_keys)

Default Value

FALSE

Remarks

Enables or disables explicit trust to all server keys. Use with care.

ssh_settings_use_auth_agent Property

Enables or disables the use of external key agent, such as Putty key agent.

Syntax

def get_ssh_settings_use_auth_agent() -> bool: ...
def set_ssh_settings_use_auth_agent(value: bool) -> None: ...

ssh_settings_use_auth_agent = property(get_ssh_settings_use_auth_agent, set_ssh_settings_use_auth_agent)

Default Value

FALSE

Remarks

Enables or disables the use of external key agent, such as Putty key agent.

ssh_settings_versions Property

Specifies enabled SSH protocol versions (1 or 2).

Syntax

def get_ssh_settings_versions() -> int: ...
def set_ssh_settings_versions(value: int) -> None: ...

ssh_settings_versions = property(get_ssh_settings_versions, set_ssh_settings_versions)

Default Value

1

Remarks

Specifies enabled SSH protocol versions (1 or 2).

user_count Property

The number of records in the User arrays.

Syntax

def get_user_count() -> int: ...
def set_user_count(value: int) -> None: ...

user_count = property(get_user_count, set_user_count)

Default Value

0

Remarks

This property controls the size of the following arrays:

• user_associated_data
• user_base_path
• user_cert
• user_data
• user_handle
• user_hash_algorithm
• user_incoming_speed_limit
• user_otp_algorithm
• user_otp_value
• user_outgoing_speed_limit
• user_password
• user_password_len
• user_shared_secret
• user_ssh_key
• user_username

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

user_associated_data Property

Contains the user's Associated Data when SSH AEAD (Authenticated Encryption with Associated Data) algorithm is used.

Syntax

def get_user_associated_data(user_index: int) -> bytes: ...
def set_user_associated_data(user_index: int, value: bytes) -> None: ...

Remarks

Contains the user's Associated Data when SSH AEAD (Authenticated Encryption with Associated Data) algorithm is used.

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_base_path Property

Base path for this user in the server's file system.

Syntax

def get_user_base_path(user_index: int) -> str: ...
def set_user_base_path(user_index: int, value: str) -> None: ...

Default Value

""

Remarks

Base path for this user in the server's file system.

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_cert Property

Contains the user's certificate.

Syntax

def get_user_cert(user_index: int) -> bytes: ...
def set_user_cert(user_index: int, value: bytes) -> None: ...

Remarks

Contains the user's certificate.

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_data Property

Contains uninterpreted user-defined data that should be associated with the user account, such as comments or custom settings.

Syntax

def get_user_data(user_index: int) -> str: ...
def set_user_data(user_index: int, value: str) -> None: ...

Default Value

""

Remarks

Contains uninterpreted user-defined data that should be associated with the user account, such as comments or custom settings.

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_handle Property

Allows to get or set a 'handle', a unique identifier of the underlying property object.

Syntax

def get_user_handle(user_index: int) -> int: ...
def set_user_handle(user_index: int, value: int) -> None: ...

Default Value

0

Remarks

Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.

When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object after such operation. pdfSigner.setSigningCertHandle(certMgr.getCertHandle());

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_hash_algorithm Property

Specifies the hash algorithm used to generate TOTP (Time-based One-Time Passwords) passwords for this user.

Syntax

def get_user_hash_algorithm(user_index: int) -> str: ...
def set_user_hash_algorithm(user_index: int, value: str) -> None: ...

Default Value

""

Remarks

Specifies the hash algorithm used to generate TOTP (Time-based One-Time Passwords) passwords for this user. Three HMAC algorithms are supported, with SHA-1, SHA-256, and SHA-512 digests:

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_incoming_speed_limit Property

Specifies the incoming speed limit for this user.

Syntax

def get_user_incoming_speed_limit(user_index: int) -> int: ...
def set_user_incoming_speed_limit(user_index: int, value: int) -> None: ...

Default Value

0

Remarks

Specifies the incoming speed limit for this user. The value of 0 (zero) means "no limitation".

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_otp_algorithm Property

The algorithm used to generate one-time passwords (OTP) for this user, either HOTP (Hash-based OTP) or TOTP (Time-based OTP).

Syntax

def get_user_otp_algorithm(user_index: int) -> int: ...
def set_user_otp_algorithm(user_index: int, value: int) -> None: ...

Default Value

0

Remarks

The algorithm used to generate one-time passwords (OTP) for this user, either HOTP (Hash-based OTP) or TOTP (Time-based OTP). In the former case, a value of a dedicated counter is used to generate a unique password, while in the latter the password is generated on the basis of the current time value.

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_otp_value Property

The user's time interval (TOTP) or Counter (HOTP).

Syntax

def get_user_otp_value(user_index: int) -> int: ...
def set_user_otp_value(user_index: int, value: int) -> None: ...

Default Value

0

Remarks

The user's time interval (TOTP) or Counter (HOTP).

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_outgoing_speed_limit Property

Specifies the outgoing speed limit for this user.

Syntax

def get_user_outgoing_speed_limit(user_index: int) -> int: ...
def set_user_outgoing_speed_limit(user_index: int, value: int) -> None: ...

Default Value

0

Remarks

Specifies the outgoing speed limit for this user. The value of 0 (zero) means "no limitation".

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_password Property

The user's authentication password.

Syntax

def get_user_password(user_index: int) -> str: ...
def set_user_password(user_index: int, value: str) -> None: ...

Default Value

""

Remarks

The user's authentication password.

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_password_len Property

Specifies the length of the user's OTP password.

Syntax

def get_user_password_len(user_index: int) -> int: ...
def set_user_password_len(user_index: int, value: int) -> None: ...

Default Value

0

Remarks

Specifies the length of the user's OTP password.

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_shared_secret Property

Contains the user's secret key, which is essentially a shared secret between the client and server.

Syntax

def get_user_shared_secret(user_index: int) -> bytes: ...
def set_user_shared_secret(user_index: int, value: bytes) -> None: ...

Remarks

Contains the user's secret key, which is essentially a shared secret between the client and server.

Shared secrets can be used in TLS-driven protocols, as well as in OTP (where it is called a 'key secret') for generating one-time passwords on one side, and validate them on the other.

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_ssh_key Property

Contains the user's SSH key.

Syntax

def get_user_ssh_key(user_index: int) -> bytes: ...
def set_user_ssh_key(user_index: int, value: bytes) -> None: ...

Remarks

Contains the user's SSH key.

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

user_username Property

The registered name (login) of the user.

Syntax

def get_user_username(user_index: int) -> str: ...
def set_user_username(user_index: int, value: str) -> None: ...

Default Value

""

Remarks

The registered name (login) of the user.

The user_index parameter specifies the index of the item in the array. The size of the array is controlled by the user_count property.

use_utf8 Property

Specifies whether UTF8 conversion is to be used when parsing file names.

Syntax

def get_use_utf8() -> bool: ...
def set_use_utf8(value: bool) -> None: ...

use_utf8 = property(get_use_utf8, set_use_utf8)

Default Value

FALSE

Remarks

This property specifies whether UTF8 conversion of filenames is used by the server. It is set automatically according to protocol flow, but user could also set it to the desired value.

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.

do_action Method

Performs an additional action.

Syntax

def do_action(action_id: str, action_params: str) -> str: ...

Remarks

do_action is a generic method available in every class. It is used to perform an additional action introduced after the product major release. The list of actions is not fixed, and may be flexibly extended over time.

The unique identifier (case insensitive) of the action is provided in the ActionID parameter.

ActionParams contains the value of a single parameter, or a list of multiple parameters for the action in the form of PARAM1=VALUE1;PARAM2=VALUE2;....

drop_client Method

Terminates a client connection.

Syntax

def drop_client(connection_id: int, forced: bool) -> None: ...

Remarks

Call this method to shut down a connected client. Forced indicates whether the connection should be closed in a graceful manner.

get_client_buffer Method

Acquires a piece of operation data.

Syntax

def get_client_buffer(connection_id: int, handle: str) -> bytes: ...

Remarks

Use this method to obtain a piece of data relevant to a transfer operation in a thread-safe way.

A typical place to call this method is inside the on_write_file event handler, when implementing customized file transfers.

get_client_file_entry Method

Acquires file entry details from the class.

Syntax

def get_client_file_entry(connection_id: int, handle: str) -> None: ...

Remarks

Use this method to acquire the details of a file entry from the server in atomic and thread-safe way. After this method completes, the entry details will be propagated in client_file_entry property.

When calling this method, pass the client connection ID in ConnectionID property, and the opened file handle (if needed) in Handle property.

list_clients Method

Enumerates the connected clients.

Syntax

def list_clients() -> str: ...

Remarks

This method enumerates the connected clients. It returns a list of strings, with each string being of 'ConnectionID|Address|Port' format, and representing a single connection.

pin_client Method

Takes a snapshot of the connection's properties.

Syntax

def pin_client(connection_id: int) -> None: ...

Remarks

Use this method to take a snapshot of a connected client. The captured properties are populated in pinned_client property.

set_client_buffer Method

Commits a data buffer to the server class.

Syntax

def set_client_buffer(connection_id: int, handle: str, value: bytes) -> None: ...

Remarks

Use this method to commit a data buffer passed via the Value parameter to the server control in a thread-safe way.

One example where you might need to pass your buffer to the server is when customizing upload operations via on_read_file event.

set_client_file_entry Method

Commits the file entry details to the class.

Syntax

def set_client_file_entry(connection_id: int, handle: str) -> None: ...

Remarks

Use this method to commit the file entry details configured in client_file_entry property to the server object in a thread-safe way. Pass the client's connection ID via ConnectionID property, and the file entry's handle via Handle.

start Method

Starts SFTP server operation.

Syntax

def start() -> None: ...

Remarks

Call this method to start listening to incoming connections.

stop Method

Stops SFTP server.

Syntax

def stop() -> None: ...

Remarks

Call this method to close all connections and stop listening to clients.

on_accept Event

This event is fired when new incoming connection is accepted.

Syntax

class SFTPServerAcceptEventParams(object):
  @property
  def remote_address() -> str: ...

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

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

# In class SFTPServer:
@property
def on_accept() -> Callable[[SFTPServerAcceptEventParams], None]: ...
@on_accept.setter
def on_accept(event_hook: Callable[[SFTPServerAcceptEventParams], None]) -> None: ...

Remarks

This event is fired by the class before a new incoming connection is accepted. RemoteAddress contains the IP address of the connecting client. Use the Accept parameter to either accept, or reject the connection.

on_after_create_directory Event

This event indicates completion of directory creation request.

Syntax

class SFTPServerAfterCreateDirectoryEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_after_create_directory() -> Callable[[SFTPServerAfterCreateDirectoryEventParams], None]: ...
@on_after_create_directory.setter
def on_after_create_directory(event_hook: Callable[[SFTPServerAfterCreateDirectoryEventParams], None]) -> None: ...

Remarks

This event is fired to report completion of a directory creation request. The ConnectionID parameter specifies in which session the request was received, the Path specifies the directory path, and the OperationStatus contains the operation result.

If needed, you can amend the OperationStatus to return a different operation result:

on_after_remove Event

This event indicates completion of file removal request.

Syntax

class SFTPServerAfterRemoveEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_after_remove() -> Callable[[SFTPServerAfterRemoveEventParams], None]: ...
@on_after_remove.setter
def on_after_remove(event_hook: Callable[[SFTPServerAfterRemoveEventParams], None]) -> None: ...

Remarks

This event is fired when a request to delete a file or directory has been processed by the server. The ConnectionID parameter specifies the session in which the request was received. OperationStatus contains the operation result.

If needed, you can amend the OperationStatus to return a different operation result:

on_after_rename_file Event

This event indicates completion of a file rename operation.

Syntax

class SFTPServerAfterRenameFileEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

# In class SFTPServer:
@property
def on_after_rename_file() -> Callable[[SFTPServerAfterRenameFileEventParams], None]: ...
@on_after_rename_file.setter
def on_after_rename_file(event_hook: Callable[[SFTPServerAfterRenameFileEventParams], None]) -> None: ...

Remarks

This event is fired when a request to rename a file (from OldPath to NewPath) has been processed. The ConnectionID parameter specifies in which session the request was received, and OperationStatus contains the operation result.

If needed, you can amend the OperationStatus to return a different operation result:

on_after_request_attributes Event

This event indicates completion of file attributes request.

Syntax

class SFTPServerAfterRequestAttributesEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_after_request_attributes() -> Callable[[SFTPServerAfterRequestAttributesEventParams], None]: ...
@on_after_request_attributes.setter
def on_after_request_attributes(event_hook: Callable[[SFTPServerAfterRequestAttributesEventParams], None]) -> None: ...

Remarks

This event is fired when a request for get file attributes has been processed by the server. The ConnectionID parameter specifies in which session the request was received. OperationStatus contains the result of the operation.

If needed, you can amend the OperationStatus to return a different operation result:

on_after_set_attributes Event

This event indicates completion of a set attributes request.

Syntax

class SFTPServerAfterSetAttributesEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_after_set_attributes() -> Callable[[SFTPServerAfterSetAttributesEventParams], None]: ...
@on_after_set_attributes.setter
def on_after_set_attributes(event_hook: Callable[[SFTPServerAfterSetAttributesEventParams], None]) -> None: ...

Remarks

This event is fired when a request for set file attributes has been processed. The ConnectionID parameter specifies in which session the request was received. The OperationStatus parameter contains the operation result.

If needed, you can amend the OperationStatus to return a different operation result:

on_auth_attempt Event

Reports a user authentication attempt.

Syntax

class SFTPServerAuthAttemptEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

# In class SFTPServer:
@property
def on_auth_attempt() -> Callable[[SFTPServerAuthAttemptEventParams], None]: ...
@on_auth_attempt.setter
def on_auth_attempt(event_hook: Callable[[SFTPServerAuthAttemptEventParams], None]) -> None: ...

Remarks

ConnectionID identifies the session, Username specifies client's username, and AuthType specifies the authentication type. Use the Accept parameter to accept or decline the attempt.

Supported authentication types:

on_auth_failed Event

Reports user authentication failure.

Syntax

class SFTPServerAuthFailedEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_auth_failed() -> Callable[[SFTPServerAuthFailedEventParams], None]: ...
@on_auth_failed.setter
def on_auth_failed(event_hook: Callable[[SFTPServerAuthFailedEventParams], None]) -> None: ...

Remarks

ConnectionID identifies the session, Username specify client's username, and AuthType specifies what authentication type was used.

Supported authentication types:

on_auth_password Event

This event is fired on password authentication attempt from a client.

Syntax

class SFTPServerAuthPasswordEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

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

# In class SFTPServer:
@property
def on_auth_password() -> Callable[[SFTPServerAuthPasswordEventParams], None]: ...
@on_auth_password.setter
def on_auth_password(event_hook: Callable[[SFTPServerAuthPasswordEventParams], None]) -> None: ...

Remarks

Parameters Username and Password contain user credentials. If they are correct, set Accept to true. You can request password change by setting ForceChangePassword to true.

on_auth_public_key Event

This event is fired on public key authentication attempt from a client.

Syntax

class SFTPServerAuthPublicKeyEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_auth_public_key() -> Callable[[SFTPServerAuthPublicKeyEventParams], None]: ...
@on_auth_public_key.setter
def on_auth_public_key(event_hook: Callable[[SFTPServerAuthPublicKeyEventParams], None]) -> None: ...

Remarks

Username specifies client's username, and Accept is used to accept or reject authentication.

on_auth_succeeded Event

Reports a successful user authentication.

Syntax

class SFTPServerAuthSucceededEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_auth_succeeded() -> Callable[[SFTPServerAuthSucceededEventParams], None]: ...
@on_auth_succeeded.setter
def on_auth_succeeded(event_hook: Callable[[SFTPServerAuthSucceededEventParams], None]) -> None: ...

Remarks

ConnectionID identifies the session, Username specify client's username, and AuthType specifies what authentication type was used.

Supported authentication types:

on_before_create_directory Event

This event is fired when a client requests to create a directory.

Syntax

class SFTPServerBeforeCreateDirectoryEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_before_create_directory() -> Callable[[SFTPServerBeforeCreateDirectoryEventParams], None]: ...
@on_before_create_directory.setter
def on_before_create_directory(event_hook: Callable[[SFTPServerBeforeCreateDirectoryEventParams], None]) -> None: ...

Remarks

This event is fired when a request to create a directory has been received. The ConnectionID parameter specifies in which session the request was received.

Choose Action as one of the following values:

on_before_download_file Event

This event is fired when a download file request is received.

Syntax

class SFTPServerBeforeDownloadFileEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_before_download_file() -> Callable[[SFTPServerBeforeDownloadFileEventParams], None]: ...
@on_before_download_file.setter
def on_before_download_file(event_hook: Callable[[SFTPServerBeforeDownloadFileEventParams], None]) -> None: ...

Remarks

This event is fired when a request to download file is received from the client. The ConnectionID parameter specifies in which session the request was received.

Choose Action as one of the following values:

on_before_find Event

This event is fired when a client requests to find files and folders in Path.

Syntax

class SFTPServerBeforeFindEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_before_find() -> Callable[[SFTPServerBeforeFindEventParams], None]: ...
@on_before_find.setter
def on_before_find(event_hook: Callable[[SFTPServerBeforeFindEventParams], None]) -> None: ...

Remarks

This event is fired when a request to find files and folders in Path has been received. The ConnectionID parameter specifies in which session the request was received.

Choose Action as one of the following values:

on_before_remove Event

This event is fired when a client requests to delete a file or directory.

Syntax

class SFTPServerBeforeRemoveEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_before_remove() -> Callable[[SFTPServerBeforeRemoveEventParams], None]: ...
@on_before_remove.setter
def on_before_remove(event_hook: Callable[[SFTPServerBeforeRemoveEventParams], None]) -> None: ...

Remarks

This event is fired when a request to delete a file or directory is received from the client. The ConnectionID parameter specifies in which session the request was received.

Choose Action as one of the following values:

on_before_rename_file Event

This event is fired when a client requests to rename a file.

Syntax

class SFTPServerBeforeRenameFileEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

# In class SFTPServer:
@property
def on_before_rename_file() -> Callable[[SFTPServerBeforeRenameFileEventParams], None]: ...
@on_before_rename_file.setter
def on_before_rename_file(event_hook: Callable[[SFTPServerBeforeRenameFileEventParams], None]) -> None: ...

Remarks

This event is fired when a request to rename a file (from OldPath to NewPath) is received from the client. The ConnectionID parameter specifies in which session the request was received.

Choose Action as one of the following values:

on_before_request_attributes Event

This event is fired when a client requests to get file attributes.

Syntax

class SFTPServerBeforeRequestAttributesEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_before_request_attributes() -> Callable[[SFTPServerBeforeRequestAttributesEventParams], None]: ...
@on_before_request_attributes.setter
def on_before_request_attributes(event_hook: Callable[[SFTPServerBeforeRequestAttributesEventParams], None]) -> None: ...

Remarks

This event is fired when a request to get file attributes has been received. The ConnectionID parameter specifies in which session the request was received.

Choose Action as one of the following values:

on_before_set_attributes Event

This event is fired when a client requests to set file attributes.

Syntax

class SFTPServerBeforeSetAttributesEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_before_set_attributes() -> Callable[[SFTPServerBeforeSetAttributesEventParams], None]: ...
@on_before_set_attributes.setter
def on_before_set_attributes(event_hook: Callable[[SFTPServerBeforeSetAttributesEventParams], None]) -> None: ...

Remarks

This event is fired when a request to set file attributes has been received. The ConnectionID parameter specifies in which session the request was received.

Choose Action as one of the following values:

on_before_upload_file Event

This event is fired when an upload file request is received.

Syntax

class SFTPServerBeforeUploadFileEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_before_upload_file() -> Callable[[SFTPServerBeforeUploadFileEventParams], None]: ...
@on_before_upload_file.setter
def on_before_upload_file(event_hook: Callable[[SFTPServerBeforeUploadFileEventParams], None]) -> None: ...

Remarks

This event is fired when an upload file request is received from the client. The ConnectionID parameter specifies in which session the request was received, and Path specifies the location on the server where the file needs to be saved.

Choose Action as one of the following values:

on_close_file Event

This event instructs the application to close an opened file.

Syntax

class SFTPServerCloseFileEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_close_file() -> Callable[[SFTPServerCloseFileEventParams], None]: ...
@on_close_file.setter
def on_close_file(event_hook: Callable[[SFTPServerCloseFileEventParams], None]) -> None: ...

Remarks

This event is fired upon receipt of a close-file packet from a client. Servers implementing virtualized transfers must close the previously opened local file referenced by Handle in this event handler. No further operations are allowed with the closed file.

Set OperationStatus to one of the following values to report the result of this operation to the client:

on_connect Event

This event is fired when a remote connection has been established.

Syntax

class SFTPServerConnectEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_connect() -> Callable[[SFTPServerConnectEventParams], None]: ...
@on_connect.setter
def on_connect(event_hook: Callable[[SFTPServerConnectEventParams], None]) -> None: ...

Remarks

ConnectionID contains a session identifier, and RemoteAddress specifies the client's IP address.

on_create_directory Event

This event instructs the application to create a directory.

Syntax

class SFTPServerCreateDirectoryEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_create_directory() -> Callable[[SFTPServerCreateDirectoryEventParams], None]: ...
@on_create_directory.setter
def on_create_directory(event_hook: Callable[[SFTPServerCreateDirectoryEventParams], None]) -> None: ...

Remarks

This event is fired when a request to create a directory has been received and needs to be served (virtualized) by the application. The ConnectionID parameter specifies the session that has communicated the request, and Path contains the name of the directory to be created.

Set OperationStatus to one of the below values according to the outcome of the request processing:

on_disconnect Event

This event is fired when a client has disconnected.

Syntax

class SFTPServerDisconnectEventParams(object):
  @property
  def connection_id() -> int: ...

# In class SFTPServer:
@property
def on_disconnect() -> Callable[[SFTPServerDisconnectEventParams], None]: ...
@on_disconnect.setter
def on_disconnect(event_hook: Callable[[SFTPServerDisconnectEventParams], None]) -> None: ...

Remarks

This event reports loss of connection to the client within the session specified by ConnectionID.

on_error Event

Information about errors during data delivery.

Syntax

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

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

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

Remarks

The event is fired in case of exceptional conditions during message processing.

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

on_external_sign Event

Handles remote or external signing initiated by the server protocol.

Syntax

class SFTPServerExternalSignEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

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

  @property
  def signed_data() -> str: ...
  @signed_data.setter
  def signed_data(value) -> None: ...

# In class SFTPServer:
@property
def on_external_sign() -> Callable[[SFTPServerExternalSignEventParams], None]: ...
@on_external_sign.setter
def on_external_sign(event_hook: Callable[[SFTPServerExternalSignEventParams], None]) -> None: ...

Remarks

Assign a handler to this event if you need to delegate a low-level signing operation to an external, remote, or custom signing engine. Depending on the settings, the handler will receive a hashed or unhashed value to be signed.

The event handler must pass the value of Data to the signer, obtain the signature, and pass it back to the class via the SignedData parameter.

OperationId provides a comment about the operation and its origin. It depends on the exact class being used, and may be empty. HashAlgorithm specifies the hash algorithm being used for the operation, and Pars contains algorithm-dependent parameters.

The class uses base16 (hex) encoding for the Data, SignedData, and Pars parameters. If your signing engine uses a different input and output encoding, you may need to decode and/or encode the data before and/or after the signing.

A sample MD5 hash encoded in base16: a0dee2a0382afbb09120ffa7ccd8a152 - lower case base16 A0DEE2A0382AFBB09120FFA7CCD8A152 - upper case base16

A sample event handler that uses the .NET RSACryptoServiceProvider class may look like the following: signer.OnExternalSign += (s, e) => { var cert = new X509Certificate2("cert.pfx", "", X509KeyStorageFlags.Exportable); var key = (RSACryptoServiceProvider)cert.PrivateKey; var dataToSign = e.Data.FromBase16String(); var signedData = key.SignHash(dataToSign, "2.16.840.1.101.3.4.2.1"); e.SignedData = signedData.ToBase16String(); };

on_find_close Event

This event signifies the completion of a custom file listing operation.

Syntax

class SFTPServerFindCloseEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_find_close() -> Callable[[SFTPServerFindCloseEventParams], None]: ...
@on_find_close.setter
def on_find_close(event_hook: Callable[[SFTPServerFindCloseEventParams], None]) -> None: ...

Remarks

on_find_close notifies your code about the completion of a custom file listing request. Use it in conjunction with on_find_first and on_find_next to handle file listing requests manually.

See on_find_first topic for the details on implementing customized file listing request processing.

Set OperationStatus to one of the below values according to the outcome of the request processing:

on_find_first Event

This event signifies the start of the custom file listing retrieval mechanism.

Syntax

class SFTPServerFindFirstEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

  @property
  def handle() -> str: ...
  @handle.setter
  def handle(value) -> None: ...

# In class SFTPServer:
@property
def on_find_first() -> Callable[[SFTPServerFindFirstEventParams], None]: ...
@on_find_first.setter
def on_find_first(event_hook: Callable[[SFTPServerFindFirstEventParams], None]) -> None: ...

Remarks

on_find_first, on_find_next, and on_find_close events represent a mechanism for providing customized file listings to class. They are only fired if Action parameter of the preceding on_before_find event was set to fraCustom.

The behaviour of these events mimics that of the standard FindFirst/FindNext/FindClose functions found in many operating systems/frameworks. on_find_first fires once to request the first list entry; on_find_next then fires continuously in a loop to request all subsequent entries. To indicate that the listing is over, set OperationStatus parameter to ostEOF. Not doing so may lead to an endless loop and session freeze, as the component would continue firing on_find_next infinitely waiting for the EOF marker.

The handlers for both on_find_first and on_find_next events should be implemented in the following way: if there are more entries in the directory to pass back to the server component,

• set OperationStatus to ostOK,
• fill in client_file_entry with the details of the next entry,
• commit the entry to the server using set_client_file_entry method.

When all the entries from the requested directory have been passed to the server component, set OperationStatus to ostEOF. The server will then fire on_find_close event to notify your code that the file listing is completed.

Use the by-ref Handle parameter to assign a handle (a unique identifier) to the file listing procedure inside the on_find_first event handler. This identifier will then be passed to all subsequent on_find_next and on_find_close calls to let your code chain the events together.

The ConnectionID parameter specifies in which SFTP session the request was received, and Path indicates the requested directory.

The following operation status constants are available, besides the ones referenced above:

on_find_next Event

This event retrieves the next entry of a custom file listing.

Syntax

class SFTPServerFindNextEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_find_next() -> Callable[[SFTPServerFindNextEventParams], None]: ...
@on_find_next.setter
def on_find_next(event_hook: Callable[[SFTPServerFindNextEventParams], None]) -> None: ...

Remarks

This event is fired repeatedly after on_find_first to retrieve the directory contents entry-by-entry. Please see the on_find_first topic for more details about implementing a handler of this event.

Remember to set OperationStatus to ostEOF when there are no more entries left to close the listing operation. If there are more entries to pass, set it to ostOK. Other possible values are given in the table below:

on_notification Event

This event notifies the application about an underlying control flow event.

Syntax

class SFTPServerNotificationEventParams(object):
  @property
  def event_id() -> str: ...

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

# In class SFTPServer:
@property
def on_notification() -> Callable[[SFTPServerNotificationEventParams], None]: ...
@on_notification.setter
def on_notification(event_hook: Callable[[SFTPServerNotificationEventParams], None]) -> None: ...

Remarks

The class fires this event to let the application know about some event, occurrence, or milestone in the class. For example, it may fire to report completion of the document processing. The list of events being reported is not fixed, and may be flexibly extended over time.

The unique identifier of the event is provided in the EventID parameter. EventParam contains any parameters accompanying the occurrence. Depending on the type of the class, the exact action it is performing, or the document being processed, one or both may be omitted.

This class can fire this event with the following EventID values:

on_open_file Event

This event instructs the application to handle the file open request.

Syntax

class SFTPServerOpenFileEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

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

  @property
  def handle() -> str: ...
  @handle.setter
  def handle(value) -> None: ...

# In class SFTPServer:
@property
def on_open_file() -> Callable[[SFTPServerOpenFileEventParams], None]: ...
@on_open_file.setter
def on_open_file(event_hook: Callable[[SFTPServerOpenFileEventParams], None]) -> None: ...

Remarks

This event is fired when a file open request is received from the client and needs to be handled (virtualized) by the server. The ConnectionID parameter specifies in which session the request was received, and Path specifies the location of the file.

Modes can be a combination of one or several file open mode flags:

Different client applications may provide different selections of mode flags. For example, some clients specify (cfmCreate + cfmTruncate) when overwriting files, whereas others would specify cfmOpenOrCreate. Please make sure your code is prepared to receive different combinations of flags here and handles them gracefully.

The Access parameter provides additional file access modifiers:

These parameter may also contain a combination of the above flags. Access modifiers are only supported in SFTPv6, and in practice are rarely used by client applications.

The Handle string represents a unique identifier of the opened file, similar to file handles used in Windows or Unix APIs. Handles are unique across all files opened at the same time. Class generates handles automatically, but you can update the auto-generated values with your own in this event handler (just remember to keep them unique).

Set OperationStatus parameter in accordance with the outcome of the operation to one of the values given below:

on_read_file Event

This event is fired when a file read request is received.

Syntax

class SFTPServerReadFileEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

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

# In class SFTPServer:
@property
def on_read_file() -> Callable[[SFTPServerReadFileEventParams], None]: ...
@on_read_file.setter
def on_read_file(event_hook: Callable[[SFTPServerReadFileEventParams], None]) -> None: ...

Remarks

This event is fired when a request to read block from a file is received from the client. The ConnectionID parameter specifies in which session the request was received, and Handle indicates an opened file handle. Offset and Size denote the location and size of the file piece.

Inside the event handler, pass the appropriate file chunk to the component via set_client_buffer method.

Set OperationStatus to one of the below values according to the outcome of the request processing:

on_remove Event

This event is fired when a client requests to delete a file or directory.

Syntax

class SFTPServerRemoveEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

# In class SFTPServer:
@property
def on_remove() -> Callable[[SFTPServerRemoveEventParams], None]: ...
@on_remove.setter
def on_remove(event_hook: Callable[[SFTPServerRemoveEventParams], None]) -> None: ...

Remarks

This event is fired when a request to delete a file or directory is received from the client. The ConnectionID parameter specifies in which session the request was received.

Set OperationStatus to one of the below values according to the outcome of the request processing:

on_rename_file Event

This event is fired when a client requests to rename a file.

Syntax

class SFTPServerRenameFileEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

# In class SFTPServer:
@property
def on_rename_file() -> Callable[[SFTPServerRenameFileEventParams], None]: ...
@on_rename_file.setter
def on_rename_file(event_hook: Callable[[SFTPServerRenameFileEventParams], None]) -> None: ...

Remarks

This event is fired when a request to rename a file (from OldPath to NewPath) is received from the client. The ConnectionID parameter specifies in which session the request was received.

Set OperationStatus to one of the below values according to the outcome of the request processing:

on_request_attributes Event

This event is fired when a get file attributes request is received.

Syntax

class SFTPServerRequestAttributesEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

# In class SFTPServer:
@property
def on_request_attributes() -> Callable[[SFTPServerRequestAttributesEventParams], None]: ...
@on_request_attributes.setter
def on_request_attributes(event_hook: Callable[[SFTPServerRequestAttributesEventParams], None]) -> None: ...

Remarks

This event is fired when a request to get file attributes is received from the client. The ConnectionID parameter specifies in which session the request was received, and Path specifies the file location where the attributes need to be retrieved.

Set OperationStatus to one of the below values according to the outcome of the request processing:

on_session_closed Event

Reports session closure.

Syntax

class SFTPServerSessionClosedEventParams(object):
  @property
  def connection_id() -> int: ...

# In class SFTPServer:
@property
def on_session_closed() -> Callable[[SFTPServerSessionClosedEventParams], None]: ...
@on_session_closed.setter
def on_session_closed(event_hook: Callable[[SFTPServerSessionClosedEventParams], None]) -> None: ...

Remarks

This event is fired when a connection identified by ConnectionID has been gracefully closed.

on_session_established Event

This event is fired when a new session is established.

Syntax

class SFTPServerSessionEstablishedEventParams(object):
  @property
  def connection_id() -> int: ...

# In class SFTPServer:
@property
def on_session_established() -> Callable[[SFTPServerSessionEstablishedEventParams], None]: ...
@on_session_established.setter
def on_session_established(event_hook: Callable[[SFTPServerSessionEstablishedEventParams], None]) -> None: ...

Remarks

This event is fired when a new connection identified by ConnectionID has been established with a client.

on_set_attributes Event

This event is fired when an set file attributes request is received.

Syntax

class SFTPServerSetAttributesEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

# In class SFTPServer:
@property
def on_set_attributes() -> Callable[[SFTPServerSetAttributesEventParams], None]: ...
@on_set_attributes.setter
def on_set_attributes(event_hook: Callable[[SFTPServerSetAttributesEventParams], None]) -> None: ...

Remarks

This event is fired when a request to set file attributes is received from the client. The ConnectionID parameter specifies in which session the request was received, and Path specifies the file location which the attributes needs to be set.

Set OperationStatus to one of the below values according to the outcome of the request processing:

on_translate_path Event

This event is fired when a client requests the server to translate a path to its absolute form.

Syntax

class SFTPServerTranslatePathEventParams(object):
  @property
  def connection_id() -> int: ...

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

  @property
  def absolute_path() -> str: ...
  @absolute_path.setter
  def absolute_path(value) -> None: ...

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

# In class SFTPServer:
@property
def on_translate_path() -> Callable[[SFTPServerTranslatePathEventParams], None]: ...
@on_translate_path.setter
def on_translate_path(event_hook: Callable[[SFTPServerTranslatePathEventParams], None]) -> None: ...

Remarks

This event is fired when a request to translate a relative path to the corresponding absolute path is received. The ConnectionID parameter specifies the session in which the request was received.

You can let the server do the translation automatically according to the default file system rules, or take care of it yourself. Use the Action parameter to specify who is responsible for the translation. If doing the translation manually, return the translated path via the AbsolutePath parameter. Action can take one of the following values:

on_write_file Event

This event is fired when a file write request is received.

Syntax

class SFTPServerWriteFileEventParams(object):
  @property
  def connection_id() -> int: ...

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

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

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

# In class SFTPServer:
@property
def on_write_file() -> Callable[[SFTPServerWriteFileEventParams], None]: ...
@on_write_file.setter
def on_write_file(event_hook: Callable[[SFTPServerWriteFileEventParams], None]) -> None: ...

Remarks

This event is fired when a request to write a data block to a file is received from the client. The ConnectionID parameter specifies the session the request originates from. The Handle parameter references the opened file where the block should be written to. Offset references the position in the file where the block of data should be written.

Use get_client_buffer method to obtain the piece of data that should be written to the file.

Set OperationStatus to one of the below values according to the outcome of the request processing:

SFTPServer 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.

SFTPServer Config Settings

Base Config Settings

SFTPServer Errors

SFTPServer Errors

	1048577   Invalid parameter value (SB_ERROR_INVALID_PARAMETER)
	1048578   Class is configured incorrectly (SB_ERROR_INVALID_SETUP)
	1048579   Operation cannot be executed in the current state (SB_ERROR_INVALID_STATE)
	1048580   Attempt to set an invalid value to a property (SB_ERROR_INVALID_VALUE)
	1048581   Certificate does not have its private key loaded (SB_ERROR_NO_PRIVATE_KEY)
	1048581   Cancelled by the user (SB_ERROR_CANCELLED_BY_USER) 
	31457281   Unsupported file operation (SB_ERROR_SFTP_UNSUPPORTED_FILEOPERATION)