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PyLink/protocols/p10.py
James Lu d5d140f4b0 p10: fix hashed cloaks check reading from the wrong config variable 
(cherry picked from commit 043a147b41)

Conflicts:
	protocols/p10.py
2018-01-02 20:38:12 -08:00

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"""
p10.py: P10 protocol module for PyLink, supporting Nefarious IRCu and others.
"""
import base64
import struct
from ipaddress import ip_address
import time
from pylinkirc import utils, structures, conf
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."""
def __init__(self, sid):
self.allowedchars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789[]'
self.length = 3
super().__init__(sid)
def p10b64encode(num, length=2):
"""
Encodes a given numeric using P10 Base64 numeric nicks, as documented at
https://github.com/evilnet/nefarious2/blob/a29b63144/doc/p10.txt#L69-L92
"""
# Pack the given number as an unsigned int.
sidbytes = struct.pack('>I', num)[1:]
sid = base64.b64encode(sidbytes, b'[]')[-2:]
return sid.decode() # Return a string, not bytes.
class P10SIDGenerator():
def __init__(self, irc):
self.irc = irc
try:
query = irc.serverdata["sidrange"]
except (KeyError, ValueError):
raise RuntimeError('(%s) "sidrange" is missing from your server configuration block!' % irc.name)
try:
# Query is taken in the format MINNUM-MAXNUM, so we need
# to get the actual number values out of that.
self.minnum, self.maxnum = map(int, query.split('-', 1))
except ValueError:
raise RuntimeError('(%s) Invalid sidrange %r' % (irc.name, query))
else:
# Initialize a counter for the last numeric we've used.
self.currentnum = self.minnum
def next_sid(self):
"""
Returns the next available SID.
"""
if self.currentnum > self.maxnum:
raise ProtocolError("Ran out of valid SIDs! Check your 'sidrange' setting and try again.")
sid = p10b64encode(self.currentnum)
self.currentnum += 1
return sid
class P10Protocol(IRCS2SProtocol):
COMMAND_TOKENS = {
'AC': 'ACCOUNT',
'AD': 'ADMIN',
'LL': 'ASLL',
'A': 'AWAY',
'B': 'BURST',
'CAP': 'CAP',
'CM': 'CLEARMODE',
'CLOSE': 'CLOSE',
'CN': 'CNOTICE',
'CO': 'CONNECT',
'CP': 'CPRIVMSG',
'C': 'CREATE',
'DE': 'DESTRUCT',
'DS': 'DESYNCH',
'DIE': 'DIE',
'DNS': 'DNS',
'EB': 'END_OF_BURST',
'EA': 'EOB_ACK',
'Y': 'ERROR',
'GET': 'GET',
'GL': 'GLINE',
'HASH': 'HASH',
'HELP': 'HELP',
'F': 'INFO',
'I': 'INVITE',
'ISON': 'ISON',
'J': 'JOIN',
'JU': 'JUPE',
'K': 'KICK',
'D': 'KILL',
'LI': 'LINKS',
'LIST': 'LIST',
'LU': 'LUSERS',
'MAP': 'MAP',
'M': 'MODE',
'MO': 'MOTD',
'E': 'NAMES',
'N': 'NICK',
'O': 'NOTICE',
'OPER': 'OPER',
'OM': 'OPMODE',
'L': 'PART',
'PA': 'PASS',
'G': 'PING',
'Z': 'PONG',
'POST': 'POST',
'P': 'PRIVMSG',
'PRIVS': 'PRIVS',
'PROTO': 'PROTO',
'Q': 'QUIT',
'REHASH': 'REHASH',
'RESET': 'RESET',
'RESTART': 'RESTART',
'RI': 'RPING',
'RO': 'RPONG',
'S': 'SERVER',
'SERVSET': 'SERVLIST',
'SERVSET': 'SERVSET',
'SET': 'SET',
'SE': 'SETTIME',
'U': 'SILENCE',
'SQUERY': 'SQUERY',
'SQ': 'SQUIT',
'R': 'STATS',
'TI': 'TIME',
'T': 'TOPIC',
'TR': 'TRACE',
'UP': 'UPING',
'USER': 'USER',
'USERHOST': 'USERHOST',
'USERIP': 'USERIP',
'V': 'VERSION',
'WC': 'WALLCHOPS',
'WA': 'WALLOPS',
'WU': 'WALLUSERS',
'WV': 'WALLVOICES',
'H': 'WHO',
'W': 'WHOIS',
'X': 'WHOWAS',
'XQ': 'XQUERY',
'XR': 'XREPLY',
'SN': 'SVSNICK',
'SJ': 'SVSJOIN',
'SH': 'SETHOST',
'FA': 'FAKE'
}
def __init__(self, irc):
super().__init__(irc)
# Dictionary of UID generators (one for each server).
self.uidgen = structures.KeyedDefaultdict(P10UIDGenerator)
# SID generator for P10.
self.sidgen = P10SIDGenerator(irc)
self.hook_map = {'END_OF_BURST': 'ENDBURST', 'OPMODE': 'MODE', 'CLEARMODE': 'MODE', 'BURST': 'JOIN'}
self.protocol_caps |= {'slash-in-hosts', 'underscore-in-hosts'}
def _send(self, source, text, **kwargs):
self.irc.send("%s %s" % (source, text), **kwargs)
@staticmethod
def access_sort(key):
"""
Sorts (prefixmode, UID) keys based on the prefix modes given.
"""
prefixes, user = key
# Add the prefixes given for each userpair, giving each one a set value. This ensures
# that 'ohv' > 'oh' > 'ov' > 'o' > 'hv' > 'h' > 'v' > ''
accesses = {'o': 100, 'h': 10, 'v': 1}
num = 0
for prefix in prefixes:
num += accesses.get(prefix, 0)
return num
@staticmethod
def decode_p10_ip(ip):
"""Decodes a P10 IP."""
# Many thanks to Jobe @ evilnet for the code on what to do here. :) -GL
if len(ip) == 6: # IPv4
# Pad the characters with two \x00's (represented in P10 B64 as AA)
ip = 'AA' + ip
# Decode it via Base64, dropping the initial padding characters.
ip = base64.b64decode(ip, altchars='[]')[2:]
# Convert the IP to a string.
return socket.inet_ntoa(ip)
elif len(ip) <= 24 or '_' in ip: # IPv6
s = ''
# P10-encoded IPv6 addresses are formed with chunks, where each 16-bit
# portion of the address (each part between :'s) is encoded as 3 B64 chars.
# A single :: is translated into an underscore (_).
# https://github.com/evilnet/nefarious2/blob/master/doc/p10.txt#L723
# Example: 1:2::3 -> AABAAC_AAD
# Treat the part before and after the _ as two separate pieces (head and tail).
head = ip
tail = ''
byteshead = b''
bytestail = b''
if '_' in ip:
head, tail = ip.split('_')
# Each B64-encoded section is 3 characters long. Split them up and
# iterate.
for section in range(0, len(head), 3):
byteshead += base64.b64decode('A' + head[section:section+3], '[]')[1:]
for section in range(0, len(tail), 3):
bytestail += base64.b64decode('A' + tail[section:section+3], '[]')[1:]
ipbytes = byteshead
# Figure out how many 0's the center _ actually represents.
# Subtract 16 (the amount of chunks in a v6 address) by
# the length of the head and tail sections.
pad = 16 - len(byteshead) - len(bytestail)
ipbytes += (b'\x00' * pad) # Pad with zeros.
ipbytes += bytestail
ip = socket.inet_ntop(socket.AF_INET6, ipbytes)
if ip.startswith(':'):
# HACK: prevent ::1 from being treated as end-of-line
# when sending to other IRCds.
ip = '0' + ip
return ip
### COMMANDS
def spawnClient(self, nick, ident='null', host='null', realhost=None, modes=set(),
server=None, ip='0.0.0.0', realname=None, ts=None, opertype='IRC Operator',
manipulatable=False):
"""
Spawns a new client with the given options.
Note: No nick collision / valid nickname checks are done here; it is
up to plugins to make sure they don't introduce anything invalid.
"""
# {7N} *** NICK
# 1 <nickname>
# 2 <hops>
# 3 <TS>
# 4 <userid> <-- a.k.a ident
# 5 <host>
# 6 [<+modes>]
# 7+ [<mode parameters>]
# -3 <base64 IP>
# -2 <numeric>
# -1 <fullname>
server = server or self.irc.sid
if not self.irc.isInternalServer(server):
raise ValueError('Server %r is not a PyLink server!' % server)
# Create an UIDGenerator instance for every SID, so that each gets
# distinct values.
uid = self.uidgen.setdefault(server, P10UIDGenerator(server)).next_uid()
# Fill in all the values we need
ts = ts or int(time.time())
realname = realname or conf.conf['bot']['realname']
realhost = realhost or host
raw_modes = self.irc.joinModes(modes)
# Initialize an IrcUser instance
u = self.irc.users[uid] = IrcUser(nick, ts, uid, server, ident=ident, host=host, realname=realname,
realhost=realhost, ip=ip, manipulatable=manipulatable,
opertype=opertype)
# Fill in modes and add it to our users index
self.irc.applyModes(uid, modes)
self.irc.servers[server].users.add(uid)
# Encode IPs when sending
if ip_address(ip).version == 4:
# Thanks to Jobe @ evilnet for the tips here! -GL
ip = b'\x00\x00' + socket.inet_aton(ip)
b64ip = base64.b64encode(ip, b'[]')[2:].decode()
else: # TODO: propagate IPv6 address, but only if uplink supports it
b64ip = 'AAAAAA'
self._send(server, "N {nick} 1 {ts} {ident} {host} {modes} {ip} {uid} "
":{realname}".format(ts=ts, host=host, nick=nick, ident=ident, uid=uid,
modes=raw_modes, ip=b64ip, realname=realname,
realhost=realhost))
return u
def away(self, source, text):
"""Sends an AWAY message from a PyLink client. <text> can be an empty string
to unset AWAY status."""
if not self.irc.isInternalClient(source):
raise LookupError('No such PyLink client exists.')
if text:
self._send(source, 'A :%s' % text)
else:
self._send(source, 'A')
self.irc.users[source].away = text
def invite(self, numeric, target, channel):
"""Sends INVITEs from a PyLink client."""
# Note: we have to send a nick as the target, not a UID.
# <- ABAAA I PyLink-devel #services 1460948992
if not self.irc.isInternalClient(numeric):
raise LookupError('No such PyLink client exists.')
nick = self.irc.users[target].nick
self._send(numeric, 'I %s %s %s' % (nick, channel, self.irc.channels[channel].ts))
def join(self, client, channel):
"""Joins a PyLink client to a channel."""
# <- ABAAB J #test3 1460744371
channel = self.irc.toLower(channel)
ts = self.irc.channels[channel].ts
if not self.irc.isInternalClient(client):
raise LookupError('No such PyLink client exists.')
if not self.irc.channels[channel].users:
# Empty channels should be created with the CREATE command.
self._send(client, "C {channel} {ts}".format(ts=ts, channel=channel))
else:
self._send(client, "J {channel} {ts}".format(ts=ts, channel=channel))
self.irc.channels[channel].users.add(client)
self.irc.users[client].channels.add(channel)
def kick(self, numeric, channel, target, reason=None):
"""Sends kicks from a PyLink client/server."""
if (not self.irc.isInternalClient(numeric)) and \
(not self.irc.isInternalServer(numeric)):
raise LookupError('No such PyLink client/server exists.')
channel = self.irc.toLower(channel)
if not reason:
reason = 'No reason given'
cobj = self.irc.channels[channel]
# HACK: prevent kick bounces by sending our kick 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)):
reason = '(%s) %s' % (self.irc.getFriendlyName(numeric), reason)
numeric = self.irc.getServer(numeric)
self._send(numeric, 'K %s %s :%s' % (channel, target, reason))
# We can pretend the target left by its own will; all we really care about
# is that the target gets removed from the channel userlist, and calling
# handle_part() does that just fine.
self.handle_part(target, 'KICK', [channel])
if self.irc.isInternalClient(target):
# Send PART in response to acknowledge the KICK, per
# https://github.com/evilnet/nefarious2/blob/ed12d64/doc/p10.txt#L611-L616
self._send(target, 'L %s :%s' % (channel, reason))
def kill(self, numeric, target, reason):
"""Sends a kill from a PyLink client/server."""
# <- ABAAA D AyAAA :nefarious.midnight.vpn!GL (test)
if (not self.irc.isInternalClient(numeric)) and \
(not self.irc.isInternalServer(numeric)):
raise LookupError('No such PyLink client/server exists.')
self._send(numeric, 'D %s :Killed (%s)' % (target, reason))
self.removeClient(target)
def knock(self, numeric, target, text):
raise NotImplementedError('KNOCK is not supported on P10.')
def message(self, numeric, target, text):
"""Sends a PRIVMSG from a PyLink client."""
if not self.irc.isInternalClient(numeric):
raise LookupError('No such PyLink client exists.')
self._send(numeric, 'P %s :%s' % (target, text))
def mode(self, numeric, target, modes, ts=None):
"""Sends mode changes from a PyLink client/server."""
# <- ABAAA M GL -w
# <- ABAAA M #test +v ABAAB 1460747615
if (not self.irc.isInternalClient(numeric)) and \
(not self.irc.isInternalServer(numeric)):
raise LookupError('No such PyLink client/server exists.')
modes = list(modes)
# According to the P10 specification:
# 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.
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
# 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
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' % (real_target, joinedmodes))
modes = modes[12:]
def nick(self, numeric, newnick):
"""Changes the nick of a PyLink client."""
# <- ABAAA N GL_ 1460753763
if not self.irc.isInternalClient(numeric):
raise LookupError('No such PyLink client exists.')
self._send(numeric, 'N %s %s' % (newnick, int(time.time())))
self.irc.users[numeric].nick = newnick
# Update the NICK TS.
self.irc.users[numeric].ts = int(time.time())
def numeric(self, source, numeric, target, text):
"""Sends raw numerics from a server to a remote client. This is used for WHOIS
replies."""
# <- AB 311 AyAAA GL ~gl nefarious.midnight.vpn * :realname
self._send(source, '%s %s %s' % (numeric, target, text))
def notice(self, numeric, target, text):
"""Sends a NOTICE from a PyLink client or server."""
if (not self.irc.isInternalClient(numeric)) and \
(not self.irc.isInternalServer(numeric)):
raise LookupError('No such PyLink client/server exists.')
self._send(numeric, 'O %s :%s' % (target, text))
def part(self, client, channel, reason=None):
"""Sends a part from a PyLink client."""
channel = self.irc.toLower(channel)
if not self.irc.isInternalClient(client):
raise LookupError('No such PyLink client exists.')
msg = "L %s" % channel
if reason:
msg += " :%s" % reason
self._send(client, msg)
self.handle_part(client, 'PART', [channel])
def ping(self, source=None, target=None):
"""Sends a PING to a target server. Periodic PINGs are sent to our uplink
automatically by the Irc() internals; plugins shouldn't have to use this."""
source = source or self.irc.sid
if source is None:
return
if target is not None:
self._send(source, 'G %s %s' % (source, target))
else:
self._send(source, 'G %s' % source)
def quit(self, numeric, reason):
"""Quits a PyLink client."""
if self.irc.isInternalClient(numeric):
self._send(numeric, "Q :%s" % reason)
self.removeClient(numeric)
else:
raise LookupError("No such PyLink client exists.")
def sjoin(self, server, channel, users, ts=None, modes=set()):
"""Sends an SJOIN for a group of users to a channel.
The sender should always be a Server ID (SID). TS is optional, and defaults
to the one we've stored in the channel state if not given.
<users> is a list of (prefix mode, UID) pairs:
Example uses:
sjoin('100', '#test', [('', '100AAABBC'), ('o', 100AAABBB'), ('v', '100AAADDD')])
sjoin(self.irc.sid, '#test', [('o', self.irc.pseudoclient.uid)])
"""
# <- AB B #test 1460742014 +tnl 10 ABAAB,ABAAA:o :%*!*@other.bad.host ~ *!*@bad.host
channel = self.irc.toLower(channel)
server = server or self.irc.sid
assert users, "sjoin: No users sent?"
log.debug('(%s) sjoin: got %r for users', self.irc.name, users)
if not server:
raise LookupError('No such PyLink client exists.')
# Only send non-list modes in the modes argument BURST. Bans and exempts are formatted differently:
# <- AB B #test 1460742014 +tnl 10 ABAAB,ABAAA:o :%*!*@other.bad.host *!*@bad.host
# <- AB B #test2 1460743539 +l 10 ABAAA:vo :%*!*@bad.host
# <- AB B #test 1460747615 ABAAA:o :% ~ *!*@test.host
modes = modes or self.irc.channels[channel].modes
orig_ts = self.irc.channels[channel].ts
ts = ts or orig_ts
bans = []
exempts = []
regularmodes = []
for mode in modes:
modechar = mode[0][-1]
# Store bans and exempts in separate lists for processing, but don't reset bans that have already been set.
if modechar in self.irc.cmodes['*A']:
if (modechar, mode[1]) not in self.irc.channels[channel].modes:
if modechar == 'b':
bans.append(mode[1])
elif modechar == 'e':
exempts.append(mode[1])
else:
regularmodes.append(mode)
log.debug('(%s) sjoin: bans: %s, exempts: %s, other modes: %s', self.irc.name, bans, exempts, regularmodes)
changedmodes = set(modes)
changedusers = []
namelist = []
# This is annoying because we have to sort our users by access before sending...
# Joins should look like: A0AAB,A0AAC,ABAAA:v,ABAAB:o,ABAAD,ACAAA:ov
users = sorted(users, key=self.access_sort)
msgprefix = '{sid} B {channel} {ts} '.format(sid=server, channel=channel, ts=ts)
if regularmodes:
msgprefix += '%s ' % self.irc.joinModes(regularmodes)
last_prefixes = ''
for userpair in users:
# We take <users> as a list of (prefixmodes, uid) pairs.
assert len(userpair) == 2, "Incorrect format of userpair: %r" % userpair
prefixes, user = userpair
# Keep track of all the users and modes that are added. namelist is used
# to track what we actually send to the IRCd.
changedusers.append(user)
log.debug('(%s) sjoin: adding %s:%s to namelist', self.irc.name, user, prefixes)
if prefixes and prefixes != last_prefixes:
namelist.append('%s:%s' % (user, prefixes))
else:
namelist.append(user)
last_prefixes = prefixes
if prefixes:
for prefix in prefixes:
changedmodes.add(('+%s' % prefix, user))
self.irc.users[user].channels.add(channel)
else:
if namelist:
log.debug('(%s) sjoin: got %r for namelist', self.irc.name, namelist)
# Flip the (prefixmodes, user) pairs in users, and save it as a dict for easy lookup
# later of what modes each target user should have.
names_dict = dict([(uid, prefixes) for prefixes, uid in users])
# Wrap all users and send them to prevent cutoff. Subtract 4 off the maximum
# buf size to account for user prefix data that may be re-added (e.g. ":ohv")
for linenum, wrapped_msg in \
enumerate(utils.wrapArguments(msgprefix, namelist, S2S_BUFSIZE-1-len(self.irc.prefixmodes),
separator=',')):
if linenum: # Implies "if linenum > 0"
# XXX: Ugh, this postprocessing sucks, but we have to make sure that mode prefixes are accounted
# for in the burst.
wrapped_args = self.parseArgs(wrapped_msg.split(" "))
wrapped_namelist = wrapped_args[-1].split(',')
log.debug('(%s) sjoin: wrapped args: %s (post-wrap fixing)', self.irc.name,
wrapped_args)
# If the first UID was supposed to have a prefix mode attached, re-add it here
first_uid = wrapped_namelist[0]
# XXX: I'm not sure why the prefix list has to be reversed for it to match the
# original string...
first_prefix = names_dict.get(first_uid, '')[::-1]
log.debug('(%s) sjoin: prefixes for first user %s: %s (post-wrap fixing)', self.irc.name,
first_uid, first_prefix)
if (':' not in first_uid) and first_prefix:
log.debug('(%s) sjoin: re-adding prefix %s to user %s (post-wrap fixing)', self.irc.name,
first_uid, first_prefix)
wrapped_namelist[0] += ':%s' % prefixes
wrapped_msg = ' '.join(wrapped_args[:-1])
wrapped_msg += ' '
wrapped_msg += ','.join(wrapped_namelist)
self.irc.send(wrapped_msg)
self.irc.channels[channel].users.update(changedusers)
# Technically we can send bans together with the above user introductions, but
# it's easier to line wrap them separately.
if bans or exempts:
msgprefix += ':%' # Ban string starts with a % if there is anything
if bans:
for wrapped_msg in utils.wrapArguments(msgprefix, bans, S2S_BUFSIZE):
self.irc.send(wrapped_msg)
if exempts:
# Now add exempts, which are separated from the ban list by a single argument "~".
msgprefix += ' ~ '
for wrapped_msg in utils.wrapArguments(msgprefix, exempts, S2S_BUFSIZE):
self.irc.send(wrapped_msg)
self.updateTS(server, channel, ts, changedmodes)
def spawnServer(self, name, sid=None, uplink=None, desc=None, endburst_delay=0):
"""
Spawns a server off a PyLink server. desc (server description)
defaults to the one in the config. uplink defaults to the main PyLink
server, and sid (the server ID) is automatically generated if not
given.
Note: TS6 doesn't use a specific ENDBURST command, so the endburst_delay
option will be ignored if given.
"""
# <- SERVER nefarious.midnight.vpn 1 1460673022 1460673239 J10 ABP]] +h6 :Nefarious2 test server
uplink = uplink or self.irc.sid
name = name.lower()
desc = desc or self.irc.serverdata.get('serverdesc') or conf.conf['bot']['serverdesc']
if sid is None: # No sid given; generate one!
sid = self.sidgen.next_sid()
assert len(sid) == 2, "Incorrect SID length"
if sid in self.irc.servers:
raise ValueError('A server with SID %r already exists!' % sid)
for server in self.irc.servers.values():
if name == server.name:
raise ValueError('A server named %r already exists!' % name)
if not self.irc.isInternalServer(uplink):
raise ValueError('Server %r is not a PyLink server!' % uplink)
if not utils.isServerName(name):
raise ValueError('Invalid server name %r' % name)
self._send(uplink, 'SERVER %s 1 %s %s P10 %s]]] +h6 :%s' % \
(name, self.irc.start_ts, int(time.time()), sid, desc))
self.irc.servers[sid] = IrcServer(uplink, name, internal=True, desc=desc)
return sid
def squit(self, source, target, text='No reason given'):
"""SQUITs a PyLink server."""
# <- ABAAE SQ nefarious.midnight.vpn 0 :test
targetname = self.irc.servers[target].name
self._send(source, 'SQ %s 0 :%s' % (targetname, text))
self.handle_squit(source, 'SQUIT', [target, text])
def topic(self, numeric, target, text):
"""Sends a TOPIC change from a PyLink client."""
# <- ABAAA T #test GL!~gl@nefarious.midnight.vpn 1460852591 1460855795 :blah
# First timestamp is channel creation time, second is current time,
if not self.irc.isInternalClient(numeric):
raise LookupError('No such PyLink client exists.')
sendername = self.irc.getHostmask(numeric)
creationts = self.irc.channels[target].ts
self._send(numeric, 'T %s %s %s %s :%s' % (target, sendername, creationts,
int(time.time()), text))
self.irc.channels[target].topic = text
self.irc.channels[target].topicset = True
def topicBurst(self, numeric, target, text):
"""Sends a TOPIC change from a PyLink server."""
# <- AB T #test GL!~gl@nefarious.midnight.vpn 1460852591 1460855795 :blah
if not self.irc.isInternalServer(numeric):
raise LookupError('No such PyLink server exists.')
sendername = self.irc.servers[numeric].name
creationts = self.irc.channels[target].ts
self._send(numeric, 'T %s %s %s %s :%s' % (target, sendername, creationts,
int(time.time()), text))
self.irc.channels[target].topic = text
self.irc.channels[target].topicset = True
def updateClient(self, target, field, text):
"""Updates the ident or host of any connected client."""
uobj = self.irc.users[target]
ircd = self.irc.serverdata.get('p10_ircd', 'nefarious').lower()
if self.irc.isInternalClient(target):
# Host changing via SETHOST is only supported on nefarious and snircd.
if ircd not in ('nefarious', 'snircd'):
raise NotImplementedError("Host changing for internal clients (via SETHOST) is only "
"available on nefarious and snircd, and we're using p10_ircd=%r" % ircd)
# Use SETHOST (umode +h) for internal clients.
if field == 'HOST':
# Set umode +x, and +h with the given vHost as argument.
# Note: setter of the mode should be the target itself.
self.mode(target, target, [('+x', None), ('+h', '%s@%s' % (uobj.ident, text))])
elif field == 'IDENT':
# HACK: because we can't seem to update the ident only without updating the host,
# unset +h first before setting the new ident@host.
self.mode(target, target, [('-h', None)])
self.mode(target, target, [('+x', None), ('+h', '%s@%s' % (text, uobj.host))])
else:
raise NotImplementedError("Changing field %r of a client is "
"unsupported by this protocol." % field)
elif field == 'HOST':
# Host changing via FAKE is only supported on nefarious.
if ircd != 'nefarious':
raise NotImplementedError("vHost changing for non-PyLink clients (via FAKE) is "
"only available on nefarious, and we're using p10_ircd=%r" % ircd)
# Use FAKE (FA) for external clients.
self._send(self.irc.sid, 'FA %s %s' % (target, text))
# Save the host change as a user mode (this is what P10 does on bursts),
# so further host checks work.
self.irc.applyModes(target, [('+f', text)])
self.mode(self.irc.sid, target, [('+x', None)])
else:
raise NotImplementedError("Changing field %r of a client is "
"unsupported by this protocol." % field)
# P10 cloaks aren't as simple as just replacing the displayed host with the one we're
# sending. Check for cloak changes properly.
# Note: we don't need to send any hooks here, check_cloak_change does that for us.
self.check_cloak_change(target)
### HANDLERS
def connect(self):
"""Initializes a connection to a server."""
ts = self.irc.start_ts
self.irc.send("PASS :%s" % self.irc.serverdata["sendpass"])
# {7S} *** SERVER
# 1 <name of new server>
# 2 <hops>
# 3 <boot TS>
# 4 <link TS>
# 5 <protocol>
# 6 <numeric of new server><max client numeric>
# 7 <flags> <-- Mark ourselves as a service with IPv6 support (+s & +6) -GLolol
# -1 <description of new server>
name = self.irc.serverdata["hostname"]
# Encode our SID using P10 Base64.
self.irc.sid = sid = p10b64encode(self.irc.serverdata["sid"])
desc = self.irc.serverdata.get('serverdesc') or conf.conf['bot']['serverdesc']
# Enumerate modes, from https://github.com/evilnet/nefarious2/blob/master/doc/modes.txt
p10_ircd = self.irc.serverdata.get('p10_ircd', 'nefarious').lower()
if p10_ircd == 'nefarious':
cmodes = {'delayjoin': 'D', 'registered': 'R', 'key': 'k', 'banexception': 'e',
'redirect': 'L', 'oplevel_apass': 'A', 'oplevel_upass': 'U',
'adminonly': 'a', 'operonly': 'O', 'regmoderated': 'M', 'nonotice': 'N',
'permanent': 'z', 'hidequits': 'Q', 'noctcp': 'C', 'noamsg': 'T', 'blockcolor': 'c',
'stripcolor': 'S', 'had_delayjoin': 'd', 'regonly': 'r',
'*A': 'be', '*B': 'AUk', '*C': 'Ll', '*D': 'psmtinrDRaOMNzQCTcSd'}
self.irc.umodes.update({'servprotect': 'k', 'sno_debug': 'g', 'cloak': 'x', 'privdeaf': 'D',
'hidechans': 'n', 'deaf_commonchan': 'q', 'bot': 'B', 'deaf': 'd',
'hideoper': 'H', 'hideidle': 'I', 'regdeaf': 'R', 'showwhois': 'W',
'admin': 'a', 'override': 'X', 'noforward': 'L', 'ssl': 'z',
'registered': 'r', 'cloak_sethost': 'h', 'cloak_fakehost': 'f',
'cloak_hashedhost': 'C', 'cloak_hashedip': 'c', 'locop': 'O',
'*A': '', '*B': '', '*C': 'fCcrh', '*D': 'oOiwskgxnqBdDHIRWaXLz'})
elif p10_ircd == 'snircd':
# snircd has +u instead of +Q for hidequits, and fewer chanel modes.
cmodes = {'oplevel_apass': 'A', 'oplevel_upass': 'U', 'delayjoin': 'D', 'regonly': 'r',
'had_delayjoin': 'd', 'hidequits': 'u', 'regmoderated': 'M', 'blockcolor': 'c',
'noctcp': 'C', 'nonotice': 'N', 'noamsg': 'T',
'*A': 'b', '*B': 'AUk', '*C': 'l', '*D': 'imnpstrDducCMNT'}
# From https://www.quakenet.org/help/general/what-user-modes-are-available-on-quakenet
# plus my own testing.
self.irc.umodes.update({'servprotect': 'k', 'sno_debug': 'g', 'cloak': 'x',
'hidechans': 'n', 'deaf': 'd', 'hideidle': 'I', 'regdeaf': 'R',
'override': 'X', 'registered': 'r', 'cloak_sethost': 'h', 'locop': 'O',
'*A': '', '*B': '', '*C': 'h', '*D': 'imnpstrkgxndIRXO'})
elif p10_ircd == 'ircu':
# ircu proper has even fewer modes.
cmodes = {'oplevel_apass': 'A', 'oplevel_upass': 'U', 'delayjoin': 'D', 'regonly': 'r',
'had_delayjoin': 'd', 'blockcolor': 'c', 'noctcp': 'C', 'registered': 'R',
'*A': 'b', '*B': 'AUk', '*C': 'l', '*D': 'imnpstrDdRcC'}
self.irc.umodes.update({'servprotect': 'k', 'sno_debug': 'g', 'cloak': 'x',
'deaf': 'd', 'registered': 'r', 'locop': 'O',
'*A': '', '*B': '', '*C': '', '*D': 'imnpstrkgxdO'})
if self.irc.serverdata.get('use_halfop'):
cmodes['halfop'] = 'h'
self.irc.prefixmodes['h'] = '%'
self.irc.cmodes.update(cmodes)
self.irc.send('SERVER %s 1 %s %s J10 %s]]] +s6 :%s' % (name, ts, ts, sid, desc))
self._send(sid, "EB")
self.irc.connected.set()
def handle_server(self, source, command, args):
"""Handles incoming server introductions."""
# <- SERVER nefarious.midnight.vpn 1 1460673022 1460673239 J10 ABP]] +h6 :Nefarious2 test server
servername = args[0].lower()
sid = args[5][:2]
sdesc = args[-1]
self.irc.servers[sid] = IrcServer(source, servername, desc=sdesc)
if self.irc.uplink is None:
# If we haven't already found our uplink, this is probably it.
self.irc.uplink = sid
return {'name': servername, 'sid': sid, 'text': sdesc}
def handle_nick(self, source, command, args):
"""Handles the NICK command, used for user introductions and nick changes."""
if len(args) > 2:
# <- AB N GL 1 1460673049 ~gl nefarious.midnight.vpn +iw B]AAAB ABAAA :realname
nick = args[0]
self.check_nick_collision(nick)
ts, ident, host = args[2:5]
realhost = host
ip = args[-3]
ip = self.decode_p10_ip(ip)
uid = args[-2]
realname = args[-1]
log.debug('(%s) handle_nick got args: nick=%s ts=%s uid=%s ident=%s '
'host=%s realname=%s realhost=%s ip=%s', self.irc.name, nick, ts, uid,
ident, host, realname, realhost, ip)
uobj = self.irc.users[uid] = IrcUser(nick, ts, uid, source, ident, host, realname, realhost, ip)
self.irc.servers[source].users.add(uid)
# https://github.com/evilnet/nefarious2/blob/master/doc/p10.txt#L708
# Mode list is optional, and can be detected if the 6th argument starts with a +.
# This list can last until the 3rd LAST argument in the line, should there be mode
# parameters attached.
if args[5].startswith('+'):
modes = args[5:-3]
parsedmodes = self.irc.parseModes(uid, modes)
self.irc.applyModes(uid, parsedmodes)
for modepair in parsedmodes:
if modepair[0][-1] == 'r':
# Parse account registrations, sent as usermode "+r accountname:TS"
accountname = modepair[1].split(':', 1)[0]
self.irc.callHooks([uid, 'CLIENT_SERVICES_LOGIN', {'text': accountname}])
# Call the OPERED UP hook if +o is being added to the mode list.
if ('+o', None) in parsedmodes:
self.irc.callHooks([uid, 'CLIENT_OPERED', {'text': 'IRC Operator'}])
self.check_cloak_change(uid)
return {'uid': uid, 'ts': ts, 'nick': nick, 'realhost': realhost, 'host': host, 'ident': ident, 'ip': ip, 'parse_as': 'UID'}
else:
# <- ABAAA N GL_ 1460753763
oldnick = self.irc.users[source].nick
newnick = self.irc.users[source].nick = args[0]
self.irc.users[source].ts = ts = int(args[1])
# Update the nick TS.
return {'newnick': newnick, 'oldnick': oldnick, 'ts': ts}
def check_cloak_change(self, uid):
"""Checks for cloak changes (ident and host) on the given UID."""
uobj = self.irc.users[uid]
ident = uobj.ident
modes = dict(uobj.modes)
log.debug('(%s) check_cloak_change: modes of %s are %s', self.irc.name, uid, modes)
if 'x' not in modes: # +x isn't set, so cloaking is disabled.
newhost = uobj.realhost
else:
if 'h' in modes:
# +h is used by SETHOST/spoofhost blocks, or by /sethost when freeform is enabled.
# It takes the form umode +h ident@some.host, though only the host is
# actually settable in /sethost.
ident, newhost = modes['h'].split('@')
elif 'f' in modes:
# +f represents another way of setting vHosts, via a command called FAKE.
# Atheme uses this for vHosts, afaik.
newhost = modes['f']
elif uobj.services_account and self.irc.serverdata.get('use_account_cloaks'):
# The user is registered. However, if account cloaks are enabled, we have to figure
# out their new cloaked host. There can be oper cloaks and user cloaks, each with
# a different suffix. Account cloaks take the format of <accountname>.<suffix>.
# e.g. someone logged in as "person1" might get cloak "person1.users.somenet.org"
# someone opered and logged in as "person2" might get cloak "person.opers.somenet.org"
# This is a lot of extra configuration on the services' side, but there's nothing else
# we can do about it.
if self.irc.serverdata.get('use_oper_account_cloaks') and 'o' in modes:
try:
# These errors should be fatal.
suffix = self.irc.serverdata['oper_cloak_suffix']
except KeyError:
raise ProtocolError("(%s) use_oper_account_cloaks was enabled, but "
"oper_cloak_suffix was not defined!" % self.irc.name)
else:
try:
suffix = self.irc.serverdata['cloak_suffix']
except KeyError:
raise ProtocolError("(%s) use_account_cloaks was enabled, but "
"cloak_suffix was not defined!" % self.irc.name)
accountname = uobj.services_account
newhost = "%s.%s" % (accountname, suffix)
elif 'C' in modes and self.irc.serverdata.get('use_hashed_cloaks'):
# +C propagates hashed IP cloaks, similar to UnrealIRCd. (thank god we don't
# need to generate these ourselves)
newhost = modes['C']
else:
# No cloaking mechanism matched, fall back to the real host.
newhost = uobj.realhost
# Propagate a hostname update to plugins, but only if the changed host is different.
if newhost != uobj.host:
self.irc.callHooks([uid, 'CHGHOST', {'target': uid, 'newhost': newhost}])
if ident != uobj.ident:
self.irc.callHooks([uid, 'CHGIDENT', {'target': uid, 'newident': ident}])
uobj.host = newhost
uobj.ident = ident
return newhost
def handle_ping(self, source, command, args):
"""Handles incoming PING requests."""
# Snippet from Jobe @ evilnet, thanks! AFAIK, the P10 docs are out of date and don't
# show the right PING/PONG syntax used by nefarious.
# <- IA G !1460745823.89510 Channels.CollectiveIRC.Net 1460745823.89510
# -> X3 Z Channels.CollectiveIRC.Net 1460745823.89510 0 1460745823.089840
# Arguments of a PONG: our server hostname, the original TS of PING,
# difference between PING and PONG in seconds, the current TS.
# Why is this the way it is? I don't know... -GL
target = args[1]
sid = self._getSid(target)
orig_pingtime = args[0][1:] # Strip the !, used to denote a TS instead of a server name.
currtime = time.time()
timediff = int(time.time() - float(orig_pingtime))
if self.irc.isInternalServer(sid):
# Only respond if the target server is ours. No forwarding is needed because
# no IRCds can ever connect behind us...
self._send(self.irc.sid, 'Z %s %s %s %s' % (target, orig_pingtime, timediff, currtime), queue=False)
def handle_pass(self, source, command, args):
"""Handles authentication with our uplink."""
# <- PASS :testpass
if args[0] != self.irc.serverdata['recvpass']:
raise ProtocolError("Error: RECVPASS from uplink does not match configuration!")
def handle_burst(self, source, command, args):
"""Handles the BURST command, used for bursting channels on link.
This is equivalent to SJOIN on most IRCds."""
# Oh no, we have to figure out which parameter is which...
# <- AB B #test 1460742014 ABAAB,ABAAA:o
# <- AB B #services 1460742014 ABAAA:o
# <- AB B #test 1460742014 +tnlk 10 testkey ABAAB,ABAAA:o :%*!*@bad.host
# <- AB B #test 1460742014 +tnl 10 ABAAB,ABAAA:o :%*!*@other.bad.host *!*@bad.host
# <- AB B #test2 1460743539 +l 10 ABAAA:vo :%*!*@bad.host
# <- AB B #test 1460747615 ABAAA:o :% ~ *!*@test.host
# 1 <channel>
# 2 <timestamp>
# 3+ [<modes> [<mode extra parameters>]] [<users>] [<bans>]
if len(args) < 3:
# No useful data was sent, ignore.
return
channel = self.irc.toLower(args[0])
chandata = self.irc.channels[channel].deepcopy()
bans = []
if args[-1].startswith('%'):
# Ban lists start with a %. However, if one argument is "~",
# parse everything after it as an ban exempt (+e).
exempts = False
for host in args[-1][1:].split(' '):
if not host:
# Space between % and ~; ignore.
continue
elif host == '~':
exempts = True
continue
if exempts:
bans.append(('+e', host))
else:
bans.append(('+b', host))
# Remove this argument from the args list.
args = args[:-1]
# Then, we can make the modestring just encompass all the text until the end of the string.
# If no modes are given, this will simply be empty.
modestring = args[2:-1]
if modestring:
parsedmodes = self.irc.parseModes(channel, modestring)
else:
parsedmodes = []
changedmodes = set(parsedmodes + bans)
namelist = []
prefixes = ''
userlist = args[-1].split(',')
log.debug('(%s) handle_burst: got userlist %r for %r', self.irc.name, userlist, channel)
if args[-1] != args[1]: # Make sure the user list is the right argument (not the TS).
for userpair in userlist:
# This is given in the form UID1,UID2:prefixes. However, when one userpair is given
# with a certain prefix, it implicitly applies to all other following UIDs, until
# another userpair is given with a list of prefix modes. For example,
# "UID1,UID3:o,UID4,UID5" would assume that UID1 has no prefixes, but that UIDs 3-5
# all have op.
try:
user, prefixes = userpair.split(':')
except ValueError:
user = userpair
log.debug('(%s) handle_burst: got mode prefixes %r for user %r', self.irc.name, prefixes, user)
# Don't crash when we get an invalid UID.
if user not in self.irc.users:
log.warning('(%s) handle_burst: tried to introduce user %s not in our user list, ignoring...',
self.irc.name, user)
continue
namelist.append(user)
self.irc.users[user].channels.add(channel)
# Only save mode changes if the remote has lower TS than us.
changedmodes |= {('+%s' % mode, user) for mode in prefixes}
self.irc.channels[channel].users.add(user)
# Statekeeping with timestamps
their_ts = int(args[1])
our_ts = self.irc.channels[channel].ts
self.updateTS(source, channel, their_ts, changedmodes)
return {'channel': channel, 'users': namelist, 'modes': parsedmodes, 'ts': their_ts,
'channeldata': chandata}
def handle_join(self, source, command, args):
"""Handles incoming JOINs and channel creations."""
# <- ABAAA C #test3 1460744371
# <- ABAAB J #test3 1460744371
# <- ABAAB J #test3
try:
# TS is optional
ts = int(args[1])
except IndexError:
ts = None
if args[0] == '0' and command == 'JOIN':
# /join 0; part the user from all channels
oldchans = self.irc.users[source].channels.copy()
log.debug('(%s) Got /join 0 from %r, channel list is %r',
self.irc.name, source, oldchans)
for channel in oldchans:
self.irc.channels[channel].users.discard(source)
self.irc.users[source].channels.discard(channel)
return {'channels': oldchans, 'text': 'Left all channels.', 'parse_as': 'PART'}
else:
channel = self.irc.toLower(args[0])
if ts: # Only update TS if one was sent.
self.updateTS(source, channel, ts)
self.irc.users[source].channels.add(channel)
self.irc.channels[channel].users.add(source)
return {'channel': channel, 'users': [source], 'modes':
self.irc.channels[channel].modes, 'ts': ts or int(time.time())}
handle_create = handle_join
def handle_end_of_burst(self, source, command, args):
"""Handles end of burst from our uplink."""
# Send EOB acknowledgement; this is required by the P10 specification,
# and needed if we want to be able to receive channel messages, etc.
if source == self.irc.uplink:
self._send(self.irc.sid, 'EA')
return {}
def handle_mode(self, source, command, args):
"""Handles mode changes."""
# <- ABAAA M GL -w
# <- ABAAA M #test +v ABAAB 1460747615
# <- ABAAA OM #test +h ABAAA
target = self._getUid(args[0])
if utils.isChannel(target):
target = self.irc.toLower(target)
modestrings = args[1:]
changedmodes = self.irc.parseModes(target, modestrings)
self.irc.applyModes(target, changedmodes)
# Call the CLIENT_OPERED hook if +o is being set.
if ('+o', None) in changedmodes and target in self.irc.users:
self.irc.callHooks([target, 'CLIENT_OPERED', {'text': 'IRC Operator'}])
if target in self.irc.users:
# Target was a user. Check for any cloak changes.
self.check_cloak_change(target)
return {'target': target, 'modes': changedmodes}
# OPMODE is like SAMODE on other IRCds, and it follows the same modesetting syntax.
handle_opmode = handle_mode
def handle_part(self, source, command, args):
"""Handles user parts."""
# <- ABAAA L #test,#test2
# <- ABAAA L #test :test
channels = self.irc.toLower(args[0]).split(',')
for channel in channels:
# We should only get PART commands for channels that exist, right??
self.irc.channels[channel].removeuser(source)
try:
self.irc.users[source].channels.discard(channel)
except KeyError:
log.debug("(%s) handle_part: KeyError trying to remove %r from %r's channel list?",
self.irc.name, channel, source)
try:
reason = args[1]
except IndexError:
reason = ''
# Clear empty non-permanent channels.
if not self.irc.channels[channel].users:
del self.irc.channels[channel]
return {'channels': channels, 'text': reason}
def handle_kick(self, source, command, args):
"""Handles incoming KICKs."""
# <- ABAAA K #TEST AyAAA :PyLink-devel
channel = self.irc.toLower(args[0])
kicked = args[1]
self.handle_part(kicked, 'KICK', [channel, args[2]])
# Send PART in response to acknowledge the KICK, per
# https://github.com/evilnet/nefarious2/blob/ed12d64/doc/p10.txt#L611-L616
self._send(kicked, 'L %s :%s' % (channel, args[2]))
return {'channel': channel, 'target': kicked, 'text': args[2]}
def handle_topic(self, source, command, args):
"""Handles TOPIC changes."""
# <- ABAAA T #test GL!~gl@nefarious.midnight.vpn 1460852591 1460855795 :blah
channel = self.irc.toLower(args[0])
topic = args[-1]
oldtopic = self.irc.channels[channel].topic
self.irc.channels[channel].topic = topic
self.irc.channels[channel].topicset = True
return {'channel': channel, 'setter': args[1], 'text': topic,
'oldtopic': oldtopic}
def handle_invite(self, source, command, args):
"""Handles incoming INVITEs."""
# From P10 docs:
# 1 <target nick>
# 2 <channel>
# - note that the target is a nickname, not a numeric.
# <- ABAAA I PyLink-devel #services 1460948992
target = self._getUid(args[0])
channel = self.irc.toLower(args[1])
return {'target': target, 'channel': channel}
def handle_clearmode(self, numeric, command, args):
"""Handles CLEARMODE, which is used to clear a channel's modes."""
# <- ABAAA CM #test ovpsmikbl
channel = self.irc.toLower(args[0])
modes = args[1]
# Enumerate a list of our existing modes, including prefix modes.
existing = list(self.irc.channels[channel].modes)
for pmode, userlist in self.irc.channels[channel].prefixmodes.items():
# Expand the prefix modes lists to individual ('o', 'UID') mode pairs.
modechar = self.irc.cmodes.get(pmode)
existing += [(modechar, user) for user in userlist]
# Back up the channel state.
oldobj = self.irc.channels[channel].deepcopy()
changedmodes = []
# Iterate over all the modes we have for this channel.
for modepair in existing:
modechar, data = modepair
# Check if each mode matches any that we're unsetting.
if modechar in modes:
if modechar in (self.irc.cmodes['*A']+self.irc.cmodes['*B']+''.join(self.irc.prefixmodes.keys())):
# Mode is a list mode, prefix mode, or one that always takes a parameter when unsetting.
changedmodes.append(('-%s' % modechar, data))
else:
# Mode does not take an argument when unsetting.
changedmodes.append(('-%s' % modechar, None))
self.irc.applyModes(channel, changedmodes)
return {'target': channel, 'modes': changedmodes, 'channeldata': oldobj}
def handle_account(self, numeric, command, args):
"""Handles services account changes."""
# ACCOUNT has two possible syntaxes in P10, one with extended accounts
# and one without.
target = args[0]
if self.irc.serverdata.get('use_extended_accounts'):
# Registration: <- AA AC ABAAA R GL 1459019072
# Logout: <- AA AC ABAAA U
# 1 <target user numeric>
# 2 <subcommand>
# 3+ [<subcommand parameters>]
# Any other subcommands listed at https://github.com/evilnet/nefarious2/blob/master/doc/p10.txt#L354
# shouldn't apply to us.
if args[1] in ('R', 'M'):
accountname = args[2]
elif args[1] == 'U':
accountname = '' # logout
else:
# ircu or nefarious with F:EXTENDED_ACCOUNTS = FALSE
# 1 <target user numeric>
# 2 <account name>
# 3 [<account timestamp>]
accountname = args[1]
# Call this manually because we need the UID to be the sender.
self.irc.callHooks([target, 'CLIENT_SERVICES_LOGIN', {'text': accountname}])
# Check for any cloak changes now.
self.check_cloak_change(target)
def handle_fake(self, numeric, command, args):
"""Handles incoming FAKE hostmask changes."""
target = args[0]
text = args[1]
# Assume a usermode +f change, and then update the cloak checking.
self.irc.applyModes(target, [('+f', text)])
self.check_cloak_change(target)
# We don't need to send any hooks here, check_cloak_change does that for us.
def handle_svsnick(self, source, command, args):
"""Handles SVSNICK (forced nickname change attempts)."""
# From Nefarious docs at https://github.com/evilnet/nefarious2/blob/7bd3ac4/doc/p10.txt#L1057
# {7SN} *** SVSNICK (non undernet)
# 1 <target numeric>
# 2 <new nick>
return {'target': args[0], 'newnick': args[1]}
Class = P10Protocol
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