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PyLink/protocols/ts6_common.py
2015-09-04 11:24:40 -07:00

252 lines
9.7 KiB
Python

import sys
import os
curdir = os.path.dirname(__file__)
sys.path += [curdir, os.path.dirname(curdir)]
import utils
from log import log
from classes import *
def _send(irc, sid, msg):
irc.send(':%s %s' % (sid, msg))
def parseArgs(args):
"""<arg list>
Parses a string of RFC1459-style arguments split into a list, where ":" may
be used for multi-word arguments that last until the end of a line.
"""
real_args = []
for idx, arg in enumerate(args):
real_args.append(arg)
# If the argument starts with ':' and ISN'T the first argument.
# The first argument is used for denoting the source UID/SID.
if arg.startswith(':') and idx != 0:
# : is used for multi-word arguments that last until the end
# of the message. We can use list splicing here to turn them all
# into one argument.
# Set the last arg to a joined version of the remaining args
arg = args[idx:]
arg = ' '.join(arg)[1:]
# Cut the original argument list right before the multi-word arg,
# and then append the multi-word arg.
real_args = args[:idx]
real_args.append(arg)
break
return real_args
def parseTS6Args(args):
"""<arg list>
Similar to parseArgs(), but stripping leading colons from the first argument
of a line (usually the sender field)."""
args = parseArgs(args)
args[0] = args[0].split(':', 1)[1]
return args
### OUTGOING COMMANDS
def _sendKick(irc, numeric, channel, target, reason=None):
"""<irc object> <kicker client numeric>
Sends a kick from a PyLink PseudoClient."""
channel = utils.toLower(irc, channel)
if not reason:
reason = 'No reason given'
_send(irc, numeric, 'KICK %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.
handle_part(irc, target, 'KICK', [channel])
def kickClient(irc, numeric, channel, target, reason=None):
if not utils.isInternalClient(irc, numeric):
raise LookupError('No such PyLink PseudoClient exists.')
_sendKick(irc, numeric, channel, target, reason=reason)
def kickServer(irc, numeric, channel, target, reason=None):
if not utils.isInternalServer(irc, numeric):
raise LookupError('No such PyLink PseudoServer exists.')
_sendKick(irc, numeric, channel, target, reason=reason)
def nickClient(irc, numeric, newnick):
"""<irc object> <client numeric> <new nickname>
Changes the nick of a PyLink PseudoClient."""
if not utils.isInternalClient(irc, numeric):
raise LookupError('No such PyLink PseudoClient exists.')
_send(irc, numeric, 'NICK %s %s' % (newnick, int(time.time())))
irc.users[numeric].nick = newnick
def removeClient(irc, numeric):
"""<irc object> <client numeric>
Removes a client from our internal databases, regardless
of whether it's one of our pseudoclients or not."""
for c, v in irc.channels.copy().items():
v.removeuser(numeric)
# Clear empty non-permanent channels.
if not (irc.channels[c].users or ((irc.cmodes.get('permanent'), None) in irc.channels[c].modes)):
del irc.channels[c]
sid = numeric[:3]
log.debug('Removing client %s from irc.users', numeric)
del irc.users[numeric]
log.debug('Removing client %s from irc.servers[%s]', numeric, sid)
irc.servers[sid].users.discard(numeric)
def partClient(irc, client, channel, reason=None):
channel = utils.toLower(irc, channel)
if not utils.isInternalClient(irc, client):
log.error('(%s) Error trying to part client %r to %r (no such pseudoclient exists)', irc.name, client, channel)
raise LookupError('No such PyLink PseudoClient exists.')
msg = "PART %s" % channel
if reason:
msg += " :%s" % reason
_send(irc, client, msg)
handle_part(irc, client, 'PART', [channel])
def quitClient(irc, numeric, reason):
"""<irc object> <client numeric>
Quits a PyLink PseudoClient."""
if utils.isInternalClient(irc, numeric):
_send(irc, numeric, "QUIT :%s" % reason)
removeClient(irc, numeric)
else:
raise LookupError("No such PyLink PseudoClient exists.")
def messageClient(irc, numeric, target, text):
"""<irc object> <client numeric> <text>
Sends PRIVMSG <text> from PyLink client <client numeric>."""
if not utils.isInternalClient(irc, numeric):
raise LookupError('No such PyLink PseudoClient exists.')
_send(irc, numeric, 'PRIVMSG %s :%s' % (target, text))
def noticeClient(irc, numeric, target, text):
"""<irc object> <client numeric> <text>
Sends NOTICE <text> from PyLink client <client numeric>."""
if not utils.isInternalClient(irc, numeric):
raise LookupError('No such PyLink PseudoClient exists.')
_send(irc, numeric, 'NOTICE %s :%s' % (target, text))
def topicClient(irc, numeric, target, text):
if not utils.isInternalClient(irc, numeric):
raise LookupError('No such PyLink PseudoClient exists.')
_send(irc, numeric, 'TOPIC %s :%s' % (target, text))
irc.channels[target].topic = text
irc.channels[target].topicset = True
### HANDLERS
def handle_privmsg(irc, source, command, args):
# <- :70MAAAAAA PRIVMSG #dev :afasfsa
# <- :70MAAAAAA NOTICE 0ALAAAAAA :afasfsa
target = args[0]
# We use lowercase channels internally, but uppercase UIDs.
if utils.isChannel(target):
target = utils.toLower(irc, target)
return {'target': target, 'text': args[1]}
handle_notice = handle_privmsg
def handle_kill(irc, source, command, args):
killed = args[0]
data = irc.users.get(killed)
if data:
removeClient(irc, killed)
return {'target': killed, 'text': args[1], 'userdata': data}
def handle_kick(irc, source, command, args):
# :70MAAAAAA KICK #endlessvoid 70MAAAAAA :some reason
channel = utils.toLower(irc, args[0])
kicked = args[1]
handle_part(irc, kicked, 'KICK', [channel, args[2]])
return {'channel': channel, 'target': kicked, 'text': args[2]}
def handle_error(irc, numeric, command, args):
irc.connected.clear()
raise ProtocolError('Received an ERROR, killing!')
def handle_nick(irc, numeric, command, args):
# <- :70MAAAAAA NICK GL-devel 1434744242
oldnick = irc.users[numeric].nick
newnick = irc.users[numeric].nick = args[0]
return {'newnick': newnick, 'oldnick': oldnick, 'ts': int(args[1])}
def handle_quit(irc, numeric, command, args):
# <- :1SRAAGB4T QUIT :Quit: quit message goes here
removeClient(irc, numeric)
return {'text': args[0]}
def handle_save(irc, numeric, command, args):
# This is used to handle nick collisions. Here, the client Derp_ already exists,
# so trying to change nick to it will cause a nick collision. On InspIRCd,
# this will simply set the collided user's nick to its UID.
# <- :70MAAAAAA PRIVMSG 0AL000001 :nickclient PyLink Derp_
# -> :0AL000001 NICK Derp_ 1433728673
# <- :70M SAVE 0AL000001 1433728673
user = args[0]
oldnick = irc.users[user].nick
irc.users[user].nick = user
return {'target': user, 'ts': int(args[1]), 'oldnick': oldnick}
def handle_squit(irc, numeric, command, args):
# :70M SQUIT 1ML :Server quit by GL!gl@0::1
split_server = args[0]
affected_users = []
log.info('(%s) Netsplit on server %s', irc.name, split_server)
# Prevent RuntimeError: dictionary changed size during iteration
old_servers = irc.servers.copy()
for sid, data in old_servers.items():
if data.uplink == split_server:
log.debug('Server %s also hosts server %s, removing those users too...', split_server, sid)
args = handle_squit(irc, sid, 'SQUIT', [sid, "PyLink: Automatically splitting leaf servers of %s" % sid])
affected_users += args['users']
for user in irc.servers[split_server].users.copy():
affected_users.append(user)
log.debug('Removing client %s (%s)', user, irc.users[user].nick)
removeClient(irc, user)
del irc.servers[split_server]
log.debug('(%s) Netsplit affected users: %s', irc.name, affected_users)
return {'target': split_server, 'users': affected_users}
def handle_mode(irc, numeric, command, args):
# In InspIRCd, MODE is used for setting user modes and
# FMODE is used for channel modes:
# <- :70MAAAAAA MODE 70MAAAAAA -i+xc
target = args[0]
modestrings = args[1:]
changedmodes = utils.parseModes(irc, numeric, modestrings)
utils.applyModes(irc, target, changedmodes)
return {'target': target, 'modes': changedmodes}
def handle_topic(irc, numeric, command, args):
# <- :70MAAAAAA TOPIC #test :test
channel = utils.toLower(irc, args[0])
topic = args[1]
ts = int(time.time())
irc.channels[channel].topic = topic
irc.channels[channel].topicset = True
return {'channel': channel, 'setter': numeric, 'ts': ts, 'topic': topic}
def handle_part(irc, source, command, args):
channels = utils.toLower(irc, args[0]).split(',')
for channel in channels:
# We should only get PART commands for channels that exist, right??
irc.channels[channel].removeuser(source)
try:
irc.users[source].channels.discard(channel)
except KeyError:
log.debug("(%s) handle_part: KeyError trying to remove %r from %r's channel list?", irc.name, channel, source)
try:
reason = args[1]
except IndexError:
reason = ''
# Clear empty non-permanent channels.
if not (irc.channels[channel].users or ((irc.cmodes.get('permanent'), None) in irc.channels[channel].modes)):
del irc.channels[channel]
return {'channels': channels, 'text': reason}