class documentation

class twisted.conch.telnet.Telnet(protocol.Protocol): (source)

Known subclasses: twisted.conch.telnet.TelnetTransport

View In Hierarchy

Instance Variable commandMap A mapping of bytes to callables. When a telnet command is received, the command byte (the first byte after IAC) is looked up in this dictionary. If a callable is found, it is invoked with the argument of the command, or None if the command takes no argument. Values should be added to this dictionary if commands wish to be handled. By default, only WILL, WONT, DO, and DONT are handled. These should not be overridden, as this class handles them correctly and provides an API for interacting with them.
Instance Variable negotiationMap A mapping of bytes to callables. When a subnegotiation command is received, the command byte (the first byte after SB) is looked up in this dictionary. If a callable is found, it is invoked with the argument of the subnegotiation. Values should be added to this dictionary if subnegotiations are to be handled. By default, no values are handled.
Instance Variable options A mapping of option bytes to their current state. This state is likely of little use to user code. Changes should not be made to it.
Instance Variable state A string indicating the current parse state. It can take on the values "data", "escaped", "command", "newline", "subnegotiation", and "subnegotiation-escaped". Changes should not be made to it.
Instance Variable transport This protocol's transport object.
Method __init__ Undocumented
Method getOptionState Undocumented
Method will Indicate our willingness to enable an option.
Method wont Indicate we are not willing to enable an option.
Method do Undocumented
Method dont Undocumented
Method requestNegotiation Send a negotiation message for the option about with data as the payload.
Method dataReceived Called whenever data is received.
Instance Variable commands Undocumented
Instance Variable command Undocumented
Method connectionLost Called when the connection is shut down.
Method applicationDataReceived Called with application-level data.
Method unhandledCommand Called for commands for which no handler is installed.
Method commandReceived Undocumented
Method unhandledSubnegotiation Called for subnegotiations for which no handler is installed.
Method negotiate Undocumented
Method telnet_WILL Undocumented
Method will_no_false Undocumented
Method will_no_true Undocumented
Method will_yes_false Undocumented
Method will_yes_true Undocumented
Class Variable willMap Undocumented
Method telnet_WONT Undocumented
Method wont_no_false Undocumented
Method wont_no_true Undocumented
Method wont_yes_false Undocumented
Method wont_yes_true Undocumented
Class Variable wontMap Undocumented
Method telnet_DO Undocumented
Method do_no_false Undocumented
Method do_no_true Undocumented
Method do_yes_false Undocumented
Method do_yes_true Undocumented
Class Variable doMap Undocumented
Method telnet_DONT Undocumented
Method dont_no_false Undocumented
Method dont_no_true Undocumented
Method dont_yes_false Undocumented
Method dont_yes_true Undocumented
Class Variable dontMap Undocumented
Method enableLocal Reject all attempts to enable options.
Method enableRemote Reject all attempts to enable options.
Method disableLocal Signal a programming error by raising an exception.
Method disableRemote Signal a programming error by raising an exception.
Method _write Undocumented
Class _OptionState Represents the state of an option on both sides of a telnet connection.
Method _do Undocumented
Method _dont Undocumented
Method _will Undocumented
Method _wont Undocumented

Inherited from Protocol:

Class Variable factory Undocumented
Method logPrefix Return a prefix matching the class name, to identify log messages related to this protocol instance.

Inherited from BaseProtocol (via Protocol):

Instance Variable connected Undocumented
Method makeConnection Make a connection to a transport and a server.
Method connectionMade Called when a connection is made.
commandMap = (source)
A mapping of bytes to callables. When a telnet command is received, the command byte (the first byte after IAC) is looked up in this dictionary. If a callable is found, it is invoked with the argument of the command, or None if the command takes no argument. Values should be added to this dictionary if commands wish to be handled. By default, only WILL, WONT, DO, and DONT are handled. These should not be overridden, as this class handles them correctly and provides an API for interacting with them.
negotiationMap = (source)
A mapping of bytes to callables. When a subnegotiation command is received, the command byte (the first byte after SB) is looked up in this dictionary. If a callable is found, it is invoked with the argument of the subnegotiation. Values should be added to this dictionary if subnegotiations are to be handled. By default, no values are handled.
(type: dict)
options = (source)
A mapping of option bytes to their current state. This state is likely of little use to user code. Changes should not be made to it.
(type: dict)
state = (source)
A string indicating the current parse state. It can take on the values "data", "escaped", "command", "newline", "subnegotiation", and "subnegotiation-escaped". Changes should not be made to it.
(type: str)
transport = (source)
This protocol's transport object.
def __init__(self): (source)

Undocumented

def _write(self, data): (source)

Undocumented

def getOptionState(self, opt): (source)

Undocumented

def _do(self, option): (source)

Undocumented

def _dont(self, option): (source)

Undocumented

def _will(self, option): (source)

Undocumented

def _wont(self, option): (source)

Undocumented

def will(self, option): (source)

Indicate our willingness to enable an option.

def wont(self, option): (source)

Indicate we are not willing to enable an option.

def do(self, option): (source)

Undocumented

def dont(self, option): (source)

Undocumented

def requestNegotiation(self, about, data): (source)

Send a negotiation message for the option about with data as the payload.

ParametersaboutUndocumented
datathe payload (type: bytes)
See AlsoITelnetTransport.requestNegotiation
def dataReceived(self, data): (source)

Called whenever data is received.

Use this method to translate to a higher-level message. Usually, some callback will be made upon the receipt of each complete protocol message.

Parametersdataa string of indeterminate length. Please keep in mind that you will probably need to buffer some data, as partial (or multiple) protocol messages may be received! I recommend that unit tests for protocols call through to this method with differing chunk sizes, down to one byte at a time.
commands = (source)

Undocumented

(type: list)
command = (source)

Undocumented

def connectionLost(self, reason): (source)

Called when the connection is shut down.

Clear any circular references here, and any external references to this Protocol. The connection has been closed.

ParametersreasonUndocumented (type: twisted.python.failure.Failure)
def applicationDataReceived(self, data): (source)

Called with application-level data.

def unhandledCommand(self, command, argument): (source)

Called for commands for which no handler is installed.

def commandReceived(self, command, argument): (source)

Undocumented

def unhandledSubnegotiation(self, command, data): (source)

Called for subnegotiations for which no handler is installed.

def negotiate(self, data): (source)

Undocumented

def telnet_WILL(self, option): (source)

Undocumented

def will_no_false(self, state, option): (source)

Undocumented

def will_no_true(self, state, option): (source)

Undocumented

def will_yes_false(self, state, option): (source)

Undocumented

def will_yes_true(self, state, option): (source)

Undocumented

willMap = (source)

Undocumented

def telnet_WONT(self, option): (source)

Undocumented

def wont_no_false(self, state, option): (source)

Undocumented

def wont_no_true(self, state, option): (source)

Undocumented

def wont_yes_false(self, state, option): (source)

Undocumented

def wont_yes_true(self, state, option): (source)

Undocumented

wontMap = (source)

Undocumented

def telnet_DO(self, option): (source)

Undocumented

def do_no_false(self, state, option): (source)

Undocumented

def do_no_true(self, state, option): (source)

Undocumented

def do_yes_false(self, state, option): (source)

Undocumented

def do_yes_true(self, state, option): (source)

Undocumented

doMap = (source)

Undocumented

def telnet_DONT(self, option): (source)

Undocumented

def dont_no_false(self, state, option): (source)

Undocumented

def dont_no_true(self, state, option): (source)

Undocumented

def dont_yes_false(self, state, option): (source)

Undocumented

def dont_yes_true(self, state, option): (source)

Undocumented

dontMap = (source)

Undocumented

def enableLocal(self, option): (source)

Reject all attempts to enable options.

def enableRemote(self, option): (source)

Reject all attempts to enable options.

def disableLocal(self, option): (source)

Signal a programming error by raising an exception.

enableLocal must return true for the given value of option in order for this method to be called. If a subclass of Telnet overrides enableLocal to allow certain options to be enabled, it must also override disableLocal to disable those options.

RaisesNotImplementedErrorAlways raised.
def disableRemote(self, option): (source)

Signal a programming error by raising an exception.

enableRemote must return true for the given value of option in order for this method to be called. If a subclass of Telnet overrides enableRemote to allow certain options to be enabled, it must also override disableRemote tto disable those options.

RaisesNotImplementedErrorAlways raised.
API Documentation for Twisted, generated by pydoctor 20.12.1 at 2021-02-28 19:53:36.