Public Member Functions
def	__init__
def	__str__
def	encrypted_size
def	to_binary
Static Public Member Functions
def	from_binary
def	from_header_and_body
def	max_body_size
def	message_to_chunks
Public Attributes
	Body
	MessageHeader
	SecurityHeader
	SequenceHeader
Private Attributes
	_security_policy
Static Private Attributes
	__repr__ = __str__

Detailed Description

Message Chunk, as described in OPC UA specs Part 6, 6.7.2.

Definition at line 348 of file uaprotocol_hand.py.

Constructor & Destructor Documentation

def opcua.ua.uaprotocol_hand.MessageChunk.__init__	(	self,
		security_policy,
		body = `b''`,
		msg_type = `MessageType.SecureMessage`,
		chunk_type = `ChunkType.Single`
	)

Definition at line 353 of file uaprotocol_hand.py.

Member Function Documentation

def opcua.ua.uaprotocol_hand.MessageChunk.__str__ ( self )

Definition at line 457 of file uaprotocol_hand.py.

def opcua.ua.uaprotocol_hand.MessageChunk.encrypted_size	(	self,
		plain_size
	)

Definition at line 397 of file uaprotocol_hand.py.

def opcua.ua.uaprotocol_hand.MessageChunk.from_binary	(	security_policy,
		data
	)	`[static]`

Definition at line 366 of file uaprotocol_hand.py.

def opcua.ua.uaprotocol_hand.MessageChunk.from_header_and_body	(	security_policy,
		header,
		buf
	)	`[static]`

Definition at line 371 of file uaprotocol_hand.py.

def opcua.ua.uaprotocol_hand.MessageChunk.max_body_size	(	crypto,
		max_chunk_size
	)	`[static]`

Definition at line 413 of file uaprotocol_hand.py.

def opcua.ua.uaprotocol_hand.MessageChunk.message_to_chunks	(	security_policy,
		body,
		max_chunk_size,
		message_type = `MessageType.SecureMessage`,
		channel_id = `1`,
		request_id = `1`,
		token_id = `1`
	)	`[static]`

Pack message body (as binary string) into one or more chunks.
Size of each chunk will not exceed max_chunk_size.
Returns a list of MessageChunks. SequenceNumber is not initialized here,
it must be set by Secure Channel driver.

Definition at line 419 of file uaprotocol_hand.py.

def opcua.ua.uaprotocol_hand.MessageChunk.to_binary ( self )

Definition at line 403 of file uaprotocol_hand.py.