mirror of https://github.com/nealey/firebot
614 lines
18 KiB
Python
614 lines
18 KiB
Python
import asynchat
|
|
import asyncore
|
|
import socket
|
|
import string
|
|
import types
|
|
import sys
|
|
import traceback
|
|
import time
|
|
|
|
class IRCHandler(asynchat.async_chat):
|
|
"""IRC Server connection.
|
|
|
|
This is the one you want to derive your connection classes from.
|
|
|
|
"""
|
|
|
|
debug = False
|
|
heartbeat_interval = 1 # seconds per heartbeat
|
|
|
|
def __init__(self, host=None, nick=None, gecos=None):
|
|
asynchat.async_chat.__init__(self)
|
|
self.line = ''
|
|
self.timers = []
|
|
self.last_heartbeat = 0
|
|
self.set_terminator('\r\n')
|
|
if host:
|
|
self.open_connection(host, nick, gecos)
|
|
|
|
def dbg(self, msg):
|
|
if self.debug:
|
|
print msg
|
|
|
|
def open_connection(self, host, nick, gecos):
|
|
self.nick = nick
|
|
self.gecos = gecos
|
|
self.host = host
|
|
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.connect(host)
|
|
|
|
def handle_connect(self):
|
|
self.write(['NICK', self.nick])
|
|
self.write(['USER', self.nick, '+iw', self.nick], self.gecos)
|
|
|
|
def connect(self, host):
|
|
self.waiting = False
|
|
asynchat.async_chat.connect(self, host)
|
|
|
|
def heartbeat(self):
|
|
"""Invoke all timers."""
|
|
|
|
if not self.timers:
|
|
return
|
|
timers, self.timers = self.timers, []
|
|
now = time.time()
|
|
for t, cb in timers:
|
|
if t > now:
|
|
self.timers.append((t, cb))
|
|
else:
|
|
cb()
|
|
|
|
def add_timer(self, secs, callback):
|
|
"""After secs seconds, call callback"""
|
|
self.timers.append((time.time() + secs, callback))
|
|
|
|
def readable(self):
|
|
"""Called by asynchat to see if we're readable.
|
|
|
|
We hook our heartbeat in here.
|
|
"""
|
|
|
|
now = time.time()
|
|
if now > self.last_heartbeat + self.heartbeat_interval:
|
|
self.heartbeat()
|
|
self.last_heartbeat = now
|
|
|
|
if self.connected:
|
|
return asynchat.async_chat.readable(self)
|
|
else:
|
|
return False
|
|
|
|
def collect_incoming_data(self, data):
|
|
"""Called by asynchat when data arrives"""
|
|
self.line += data
|
|
|
|
def found_terminator(self):
|
|
"""Called by asynchat when it finds the terminating character.
|
|
"""
|
|
line = self.line
|
|
self.line = ''
|
|
self.parse_line(line)
|
|
|
|
def write(self, args, *text):
|
|
"""Send out an IRC command
|
|
|
|
This function helps to prevent you from shooting yourself in the
|
|
foot, by forcing you to send commands that are in a valid format
|
|
(although it doesn't check the validity of the actual commands).
|
|
|
|
As we all know, IRC commands take the form
|
|
|
|
:COMMAND ARG1 ARG2 ARG3 ... :text string
|
|
|
|
where 'text string' is optional. Well, that's exactly how this
|
|
function works. Args is a list of length at least one, and text
|
|
string can be any number of strings. You can call the function
|
|
like this:
|
|
|
|
write(['PRIVMSG', nick], 'Hello 12')
|
|
|
|
or like this:
|
|
|
|
write(['PRIVMSG', nick], 'Hello', '12')
|
|
|
|
or even like this:
|
|
|
|
write(['PRIVMSG', nick], 'Hello', 12)
|
|
|
|
And you'll get the same result with all three.
|
|
|
|
"""
|
|
|
|
if (type(args) == types.StringType):
|
|
cmd = args
|
|
else:
|
|
cmd = u' '.join(args)
|
|
cmdstr = cmd
|
|
if (text):
|
|
txt = ''
|
|
for t in (text):
|
|
if type(t) in (types.StringType, types.UnicodeType):
|
|
txt = txt + ' ' + t
|
|
elif type(t) in (types.ListType, types.TupleType):
|
|
for i in (t):
|
|
try:
|
|
txt = ' '.join([txt, i])
|
|
except TypeError:
|
|
txt = ' '.join([txt, repr(i)])
|
|
else:
|
|
txt = ' '.join([txt, repr(t)])
|
|
txt = txt[1:]
|
|
cmdstr = "%s :%s" % (cmdstr, txt)
|
|
encstr = cmdstr.encode('utf8', 'replace')
|
|
self.dbg("-> %s " % encstr)
|
|
try:
|
|
self.send(encstr + '\n')
|
|
except socket.error:
|
|
pass
|
|
|
|
|
|
def parse_line(self, line):
|
|
"""Parse a server-provided line
|
|
|
|
This does all the magic of parsing those ill-formatted IRC
|
|
messages. It will also decide if a PRIVMSG or NOTICE is using
|
|
CTCP (the client-to-client protocol, which by convention is any
|
|
of the above messages with ^A on both ends of the text.
|
|
|
|
This function goes on to invoke self.eval_triggers on the parsed
|
|
data like this:
|
|
|
|
self.eval_triggers(operation, arguments, text)
|
|
|
|
where operation and text are strings, and arguments is a list.
|
|
|
|
It returns the same tuple (op, args, text).
|
|
|
|
"""
|
|
line = line.decode('utf8', 'replace')
|
|
if (line[0] == ':'):
|
|
with_uname = 1
|
|
line = line [1:]
|
|
else:
|
|
with_uname = 0
|
|
try:
|
|
[args, text] = line.split(' :', 1)
|
|
args = args.split()
|
|
except ValueError:
|
|
args = line.split()
|
|
text = ''
|
|
if (with_uname != 1):
|
|
op = args[0]
|
|
elif ((args[1] in ["PRIVMSG", "NOTICE"]) and
|
|
(text and (text[0] == '\001') and (text[-1] == '\001'))):
|
|
op = "C" + args[1]
|
|
text = text[1:-1]
|
|
else:
|
|
op = args[1]
|
|
self.dbg("<- %s %s %s" % (op, args, text))
|
|
self.handle(op, args, text)
|
|
return (op, args, text)
|
|
|
|
|
|
def handle(self, op, args, text):
|
|
"""Take action on a server message
|
|
|
|
Right now, just invokes
|
|
|
|
self.do_[op](args, text)
|
|
|
|
where [op] is the operation passed in.
|
|
|
|
This is a good method to overload if you want a really advanced
|
|
client supporting bindings.
|
|
|
|
"""
|
|
try:
|
|
method = getattr(self, "do_" + lower(op))
|
|
except AttributeError:
|
|
self.dbg("Unhandled: %s" % (op, args, text))
|
|
return
|
|
method(args, text)
|
|
|
|
|
|
class Recipient:
|
|
"""Abstract recipient object"""
|
|
|
|
def __init__(self, interface, name):
|
|
self._interface = interface
|
|
self._name = name
|
|
|
|
def __repr__(self):
|
|
return 'Recipient(%s)' % self.name()
|
|
|
|
def name(self):
|
|
return self._name
|
|
|
|
def is_channel(self):
|
|
return False
|
|
|
|
def write(self, cmd, addl):
|
|
"""Write a raw IRC command to our interface"""
|
|
|
|
self._interface.write(cmd, addl)
|
|
|
|
def cmd(self, cmd, text):
|
|
"""Send a command to ourself"""
|
|
|
|
self.write([cmd, self._name], text)
|
|
|
|
def msg(self, text):
|
|
"""Tell the recipient something"""
|
|
|
|
self.cmd("PRIVMSG", text)
|
|
|
|
def notice(self, text):
|
|
"""Send a notice to the recipient"""
|
|
|
|
self.cmd("NOTICE", text)
|
|
|
|
def ctcp(self, command, text):
|
|
"""Send a CTCP command to the recipient"""
|
|
|
|
return self.msg("\001%s %s\001" % (upper(command), text))
|
|
|
|
def act(self, text):
|
|
"""Send an action to the recipient"""
|
|
|
|
return self.ctcp("ACTION", text)
|
|
|
|
def cnotice(self, command, text):
|
|
"""Send a CTCP notice to the recipient"""
|
|
|
|
return self.notice("\001%s %s\001" % (upper(command), text))
|
|
|
|
class Channel(Recipient):
|
|
def __repr__(self):
|
|
return 'Channel(%s)' % self.name()
|
|
|
|
def is_channel(self):
|
|
return True
|
|
|
|
class User(Recipient):
|
|
def __init__(self, interface, name, user, host, op=False):
|
|
Recipient.__init__(self, interface, name)
|
|
self.user = user
|
|
self.host = host
|
|
self.op = op
|
|
|
|
def __repr__(self):
|
|
return 'User(%s, %s, %s)' % (self.name(), self.user, self.host)
|
|
|
|
def recipient(interface, name):
|
|
if name[0] in ["&", "#"]:
|
|
return Channel(interface, name)
|
|
else:
|
|
return User(interface, name, None, None)
|
|
|
|
class SmartIRCHandler(IRCHandler):
|
|
"""This is like the IRCHandler, except it creates Recipient objects
|
|
for IRC messages. The intent is to make it easier to write stuff
|
|
without knowledge of the IRC protocol.
|
|
|
|
"""
|
|
|
|
def recipient(self, name):
|
|
return recipient(self, name)
|
|
|
|
def err(self, exception):
|
|
if self.debug:
|
|
traceback.print_exception(*exception)
|
|
|
|
def handle(self, op, args, text):
|
|
"""Parse more, creating objects and stuff
|
|
|
|
makes a call to self.handle_op(sender, forum, addl)
|
|
|
|
sender is always a Recipient object; if you want to reply
|
|
privately, you can send your reply to sender.
|
|
|
|
forum is a Recipient object corresponding with the forum over
|
|
which the message was carried. For user-to-user PRIVMSG and
|
|
NOTICE commands, this is the same as sender. For those same
|
|
commands sent to a channel, it is the channel. Thus, you can
|
|
always send a reply to forum, and it will be sent back in an
|
|
appropriate manner (ie. the way you expect).
|
|
|
|
addl is a tuple, containing additional information which might
|
|
be relelvant. Here's what it will contain, based on the server
|
|
operation:
|
|
|
|
op | addl
|
|
---------+----------------
|
|
PRIVMSG | text of the message
|
|
NOTICE | text of the notice
|
|
CPRIVMSG | CTCP command, text of the command
|
|
CNOTICE | CTCP response, text of the response
|
|
KICK * | victim of kick, kick text
|
|
MODE * | all mode args
|
|
JOIN * | empty
|
|
PART * | empty
|
|
QUIT | quit message
|
|
PING | ping text
|
|
NICK ! | old nickname
|
|
others | all arguments; text is last element
|
|
|
|
* The forum in these items is the channel to which the action
|
|
pertains.
|
|
! The sender for the NICK command is the *new* nickname. This
|
|
is so you can send messages to the sender object and they'll
|
|
go to the right place.
|
|
"""
|
|
|
|
try:
|
|
sender = User(self, *unpack_nuhost(args))
|
|
except ValueError:
|
|
sender = None
|
|
forum = None
|
|
addl = ()
|
|
|
|
if op in ("PRIVMSG", "NOTICE"):
|
|
# PRIVMSG ['neale!~user@127.0.0.1', 'PRIVMSG', '#hydra'] firebot, foo
|
|
# PRIVMSG ['neale!~user@127.0.0.1', 'PRIVMSG', 'firebot'] firebot, foo
|
|
try:
|
|
if args[2][0] in '#&':
|
|
forum = self.recipient(args[2])
|
|
else:
|
|
forum = sender
|
|
addl = (text,)
|
|
except IndexError:
|
|
addl = (text, args[1])
|
|
elif op in ("CPRIVMSG", "CNOTICE"):
|
|
forum = self.recipient(args[2])
|
|
splits = text.split(" ")
|
|
if splits[0] == "DCC":
|
|
op = "DC" + op
|
|
addl = (splits[1],) + tuple(splits[2:])
|
|
else:
|
|
addl = (splits[0],) + tuple(splits[1:])
|
|
elif op in ("KICK",):
|
|
forum = self.recipient(args[2])
|
|
addl = (self.recipient(args[3]), text)
|
|
elif op in ("MODE",):
|
|
forum = self.recipient(args[2])
|
|
addl = args[3:]
|
|
elif op in ("JOIN", "PART"):
|
|
try:
|
|
forum = self.recipient(args[2])
|
|
except IndexError:
|
|
forum = self.recipient(text)
|
|
elif op in ("QUIT",):
|
|
addl = (text,)
|
|
elif op in ("PING", "PONG"):
|
|
# PING ['PING'] us.boogernet.org.
|
|
# PONG ['irc.foonet.com', 'PONG', 'irc.foonet.com'] 1114199424
|
|
addl = (text,)
|
|
elif op in ("NICK",):
|
|
# NICK ['brad!~brad@10.168.2.33', 'NICK'] bradaway
|
|
#
|
|
# The sender is the new nickname here, in case you want to
|
|
# send something to the sender.
|
|
|
|
# Apparently there are two different standards for this
|
|
# command.
|
|
if text:
|
|
sender = self.recipient(text)
|
|
else:
|
|
sender = self.recipient(args[2])
|
|
addl = (unpack_nuhost(args)[0],)
|
|
elif op in ("INVITE",):
|
|
# INVITE [u'pflarr!~pflarr@www.clanspum.net', u'INVITE', u'gallium', u'#mysterious']
|
|
# INVITE [u'pflarr!~pflarr@www.clanspum.net', u'INVITE', u'gallium'] #mysterious
|
|
if len(args) > 3:
|
|
forum = self.recipient(args[3])
|
|
else:
|
|
forum = self.recipient(text)
|
|
else:
|
|
try:
|
|
int(op)
|
|
except ValueError:
|
|
self.dbg("WARNING: unknown server code: %s" % op)
|
|
addl = tuple(args[3:]) + (text,)
|
|
|
|
try:
|
|
self.handle_cooked(op, sender, forum, addl)
|
|
except SystemExit:
|
|
raise
|
|
except:
|
|
self.err(sys.exc_info())
|
|
|
|
def handle_cooked(self, op, sender, forum, addl):
|
|
try:
|
|
func = getattr(self, 'cmd_' + op.lower())
|
|
except AttributeError:
|
|
self.unhandled(op, sender, forum, addl)
|
|
return
|
|
func(sender, forum, addl)
|
|
|
|
def cmd_ping(self, sender, forum, addl):
|
|
self.write('PONG', addl)
|
|
|
|
def unhandled(self, op, sender, forum, addl):
|
|
"""Handle all the stuff that had no handler.
|
|
|
|
This is a special handler in that it also gets the server code
|
|
as the first argument.
|
|
|
|
"""
|
|
|
|
self.dbg("unhandled: %s" % ((op, sender, forum, addl),))
|
|
|
|
|
|
class Bot(SmartIRCHandler):
|
|
"""A simple bot.
|
|
|
|
This automatically joins the channels you pass to the constructor,
|
|
tries to use one of the nicks provided, and reconnects if it gets
|
|
booted. You can use this as a base for more sophisticated bots.
|
|
|
|
"""
|
|
|
|
def __init__(self, host, nicks, gecos, channels):
|
|
self.nicks = nicks
|
|
self.channels = channels
|
|
self.waiting = True
|
|
self._spool = []
|
|
SmartIRCHandler.__init__(self, host, nicks[0], gecos)
|
|
|
|
def despool(self, target, lines):
|
|
"""Slowly despool a bunch of lines to a target
|
|
|
|
Since the IRC server will block all output if we send it too
|
|
fast, use this to send large multi-line responses.
|
|
|
|
"""
|
|
|
|
self._spool.append((target, list(lines)))
|
|
|
|
def heartbeat(self):
|
|
SmartIRCHandler.heartbeat(self)
|
|
|
|
# Despool data
|
|
if self._spool:
|
|
# Take the first one on the queue, and put it on the end
|
|
which = self._spool[0]
|
|
del self._spool[0]
|
|
self._spool.append(which)
|
|
|
|
# Despool a line
|
|
target, lines = which
|
|
if lines:
|
|
line = lines[0]
|
|
target.msg(line)
|
|
del lines[0]
|
|
else:
|
|
self._spool.remove(which)
|
|
|
|
def announce(self, text):
|
|
for c in self.channels:
|
|
self.write(['PRIVMSG', c], text)
|
|
|
|
def err(self, exception):
|
|
SmartIRCHandler.err(self, exception)
|
|
self.announce('*bzert*')
|
|
|
|
def cmd_001(self, sender, forum, addl):
|
|
for c in self.channels:
|
|
self.write('JOIN', c)
|
|
|
|
def writable(self):
|
|
if not self.waiting:
|
|
return asynchat.async_chat.writable(self)
|
|
else:
|
|
return False
|
|
|
|
def write(self, *args):
|
|
SmartIRCHandler.write(self, *args)
|
|
|
|
def close(self, final=False):
|
|
SmartIRCHandler.close(self)
|
|
if not final:
|
|
self.dbg("Connection closed, reconnecting...")
|
|
self.waiting = True
|
|
self.connected = 0
|
|
# Wait a bit and reconnect
|
|
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.add_timer(23, lambda : self.connect(self.host))
|
|
|
|
|
|
def handle_close(self):
|
|
self.close()
|
|
|
|
|
|
##
|
|
## Miscellaneous IRC functions
|
|
##
|
|
|
|
ucletters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ[]\\"
|
|
lcletters = "abcdefghijklmnopqrstuvwxyz{}|"
|
|
|
|
ultrans = string.maketrans(ucletters, lcletters)
|
|
lutrans = string.maketrans(lcletters, ucletters)
|
|
casetrans = string.maketrans(''.join([ucletters, lcletters]),
|
|
''.join([lcletters, ucletters]))
|
|
|
|
def upper(s):
|
|
"""Convert a string to upper case.
|
|
|
|
Because IRC was developed in a nordic country, there are three extra
|
|
letters. In order to do case conversions properly, you need to use
|
|
the IRC-specific functions.
|
|
|
|
"""
|
|
|
|
return string.translate(s, lutrans)
|
|
|
|
def lower(s):
|
|
"""Convert a string to lower case
|
|
|
|
Because IRC was developed in a nordic country, there are three extra
|
|
letters. In order to do case conversions properly, you need to use
|
|
the IRC-specific functions.
|
|
|
|
"""
|
|
|
|
return string.translate(s, ultrans)
|
|
|
|
def swapcase(s):
|
|
"""Invert a string's case
|
|
|
|
Because IRC was developed in a nordic country, there are three extra
|
|
letters. In order to do case conversions properly, you need to use
|
|
the IRC-specific functions.
|
|
|
|
"""
|
|
|
|
return string.translate(s, casetrans)
|
|
|
|
|
|
def strcmp(s1, s2):
|
|
"""Case-insensitively compare two strings
|
|
|
|
Because IRC was developed in a nordic country, there are three extra
|
|
letters. In order to do case-insensitive comparisons properly, you
|
|
need to use this IRC-specific function.
|
|
|
|
"""
|
|
|
|
return (lower(s1) == lower(s2))
|
|
|
|
|
|
def unpack_nuhost(nuhost):
|
|
"""Unpack nick!user@host
|
|
|
|
Frequently, the first argument in a server message is in
|
|
nick!user@host format. You can just pass your whole argument list
|
|
to this function and get back a tuple containing:
|
|
|
|
(nick, user, host)
|
|
|
|
"""
|
|
|
|
try:
|
|
[nick, uhost] = string.split(nuhost[0], '!', 1)
|
|
[user, host] = string.split(uhost, '@', 1)
|
|
except ValueError:
|
|
raise ValueError, "not in nick!user@host format"
|
|
return (nick, user, host)
|
|
|
|
def run_forever(timeout=2.0):
|
|
"""Run your clients forever.
|
|
|
|
Just a handy front-end to asyncore.loop, so you don't have to import
|
|
asyncore yourself.
|
|
|
|
"""
|
|
|
|
if False:
|
|
map = asyncore.socket_map
|
|
while map:
|
|
print map
|
|
asyncore.poll(timeout, map)
|
|
else:
|
|
asyncore.loop(timeout)
|