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nefarious: implement text wrapping in outgoing MODE (#253)

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This commit is contained in:
James Lu 2017-01-06 18:08:21 -08:00
parent 3e706366bd
commit 92dcf3c28e
1 changed files with 14 additions and 5 deletions
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19
protocols/nefarious.py
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@ -12,6 +12,8 @@ from pylinkirc.classes import *
from pylinkirc.log import log
from pylinkirc.protocols.ircs2s_common import *
S2S_BUFSIZE = 510
class P10UIDGenerator(utils.IncrementalUIDGenerator):
"""Implements an incremental P10 UID Generator."""
@ -399,33 +401,40 @@ class P10Protocol(IRCS2SProtocol):
modes = list(modes)
# According to the P10 specification:
# https://github.com/evilnet/nefarious2/blob/master/doc/p10.txt#L29
# https://github.com/evilnet/nefarious2/blob/4e2dcb1/doc/p10.txt#L146
# One line can have a max of 15 parameters. Excluding the target and the first part of the
# modestring, this means we can send a max of 13 modes with arguments per line.
if utils.isChannel(target):
is_cmode = utils.isChannel(target)
if is_cmode:
# Channel mode changes have a trailing TS. User mode changes do not.
cobj = self.irc.channels[self.irc.toLower(target)]
ts = ts or cobj.ts
send_ts = True
# HACK: prevent mode bounces by sending our mode through the server if
# the sender isn't op.
if numeric not in self.irc.servers and (not cobj.isOp(numeric)) and (not cobj.isHalfop(numeric)):
numeric = self.irc.getServer(numeric)
# Wrap modes: start with max bufsize and subtract the lengths of the source, target,
# mode command, and whitespace.
bufsize = S2S_BUFSIZE - len(numeric) - 4 - len(target) - len(str(ts))
real_target = target
else:
assert target in self.irc.users, "Unknown mode target %s" % target
# P10 uses nicks in user MODE targets, NOT UIDs. ~GL
real_target = self.irc.users[target].nick
send_ts = False
self.irc.applyModes(target, modes)
while modes[:12]:
joinedmodes = self.irc.joinModes([m for m in modes[:12]])
if is_cmode:
for wrapped_modes in self.irc.wrapModes(modes[:12], bufsize):
self._send(numeric, 'M %s %s %s' % (real_target, wrapped_modes, ts))
else:
self._send(numeric, 'M %s %s%s' % (real_target, joinedmodes))
modes = modes[12:]
self._send(numeric, 'M %s %s%s' % (real_target, joinedmodes, ' %s' % ts if send_ts else ''))
def nick(self, numeric, newnick):
"""Changes the nick of a PyLink client."""