t.c.s.c.SSHChannel(log.Logger) : class documentation

Known subclasses: twisted.conch.client.agent.SSHAgentForwardingChannel, twisted.conch.scripts.cftp.SSHSession, twisted.conch.scripts.conch.SSHSession, twisted.conch.scripts.tkconch.SSHSession, twisted.conch.ssh.forwarding.SSHConnectForwardingChannel, twisted.conch.ssh.forwarding.SSHListenForwardingChannel, twisted.conch.ssh.session.SSHSession

Implements interfaces: twisted.internet.interfaces.ITransport

A class that represents a multiplexed channel over an SSH connection. The channel has a local window which is the maximum amount of data it will receive, and a remote which is the maximum amount of data the remote side will accept. There is also a maximum packet size for any individual data packet going each way.

Instance Variables	name	the name of the channel. (type: str )
	localWindowSize	the maximum size of the local window in bytes. (type: int )
	localWindowLeft	how many bytes are left in the local window. (type: int )
	localMaxPacket	the maximum size of packet we will accept in bytes. (type: int )
	remoteWindowLeft	how many bytes are left in the remote window. (type: int )
	remoteMaxPacket	the maximum size of a packet the remote side will accept in bytes. (type: int )
	conn	the connection this channel is multiplexed through. (type: SSHConnection )
	data	any data to send to the other size when the channel is requested. (type: str )
	avatar	an avatar for the logged-in user (if a server channel)
	localClosed	True if we aren't accepting more data. (type: bool )
	remoteClosed	True if the other size isn't accepting more data. (type: bool )

Method	__init__	Undocumented
Method	__str__	Undocumented
Method	logPrefix	Override this method to insert custom logging behavior. Its return value will be inserted in front of every line. It may be called more times than the number of output lines.
Method	channelOpen	Called when the channel is opened. specificData is any data that the other side sent us when opening the channel.
Method	openFailed	Called when the the open failed for some reason. reason.desc is a string descrption, reason.code the the SSH error code.
Method	addWindowBytes	Called when bytes are added to the remote window. By default it clears the data buffers.
Method	requestReceived	No summary
Method	dataReceived	Called when we receive data.
Method	extReceived	Called when we receive extended data (usually standard error).
Method	eofReceived	Called when the other side will send no more data.
Method	closeReceived	Called when the other side has closed the channel.
Method	closed	Called when the channel is closed. This means that both our side and the remote side have closed the channel.
Method	write	Write some data to the channel. If there is not enough remote window available, buffer until it is. Otherwise, split the data into packets of length remoteMaxPacket and send them.
Method	writeExtended	Send extended data to this channel. If there is not enough remote window available, buffer until there is. Otherwise, split the data into packets of length remoteMaxPacket and send them.
Method	writeSequence	Part of the Transport interface. Write a list of strings to the channel.
Method	loseConnection	Close the channel if there is no buferred data. Otherwise, note the request and return.
Method	getPeer	Return a tuple describing the other side of the connection.
Method	getHost	Return a tuple describing our side of the connection.
Method	stopWriting	Called when the remote buffer is full, as a hint to stop writing. This can be ignored, but it can be helpful.
Method	startWriting	Called when the remote buffer has more room, as a hint to continue writing.