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Fix annoying OptionRefused error when connecting from many clients

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This commit is contained in:
Griatch 2020-02-01 23:00:29 +01:00
parent a966c487cb
commit 48db73dda5
1 changed files with 29 additions and 13 deletions
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42
evennia/server/portal/telnet.py
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@ -76,26 +76,20 @@ class TelnetProtocol(Telnet, StatefulTelnetProtocol, Session):
super().__init__(*args, **kwargs)
def dataReceived(self, data):
print(f"indata: {data}")
"""
Unused by default, but a good place to put debug printouts
of incoming data.
"""
# print(f"telnet dataReceived: {data}")
super().dataReceived(data)
def wont_no_true(self, state, option):
from evennia.utils import logger
logger.log_err(f"wont_no_true {self}, {state}, {option}")
super().wont_no_true(state, options)
def dont_no_true(self, state, option):
from evennia.utils import logger
logger.log_err(f"dont_no_true {self}, {state}, {option}")
super().dont_no_true(state, options)
def connectionMade(self):
"""
This is called when the connection is first established.
"""
# important in order to work normally with standard telnet
self.do(LINEMODE)
self.do(LINEMODE).addErrback(self._wont_linemode)
# initialize the session
self.line_buffer = b""
client_address = self.transport.client
@ -140,6 +134,15 @@ class TelnetProtocol(Telnet, StatefulTelnetProtocol, Session):
self.nop_keep_alive = None
self.toggle_nop_keepalive()
def _wont_linemode(self, *args):
"""
Client refuses do(linemode). This is common for MUD-specific
clients, but we must ask for the sake of raw telnet. We ignore
this error.
"""
print("client refuses line mode")
pass
def _send_nop_keepalive(self):
"""Send NOP keepalive unless flag is set"""
if self.protocol_flags.get("NOPKEEPALIVE"):
@ -195,7 +198,8 @@ class TelnetProtocol(Telnet, StatefulTelnetProtocol, Session):
if option == LINEMODE:
# make sure to activate line mode with local editing for all clients
self.requestNegotiation(
LINEMODE, MODE + bytes(chr(ord(LINEMODE_EDIT) + ord(LINEMODE_TRAPSIG)), "ascii")
LINEMODE, MODE + bytes(chr(ord(LINEMODE_EDIT) +
ord(LINEMODE_TRAPSIG)), "ascii")
)
return True
else:
@ -207,6 +211,16 @@ class TelnetProtocol(Telnet, StatefulTelnetProtocol, Session):
or option == suppress_ga.SUPPRESS_GA
)
def disableRemote(self, option):
return (
option == LINEMODE
or option == ttype.TTYPE
or option == naws.NAWS
or option == MCCP
or option == mssp.MSSP
or option == suppress_ga.SUPPRESS_GA
)
def enableLocal(self, option):
"""
Call to allow the activation of options for this protocol
@ -233,6 +247,8 @@ class TelnetProtocol(Telnet, StatefulTelnetProtocol, Session):
option (char): The telnet option to disable locally.
"""
if option == LINEMODE:
return True
if option == ECHO:
return True
if option == MCCP: