#!/usr/bin/env python2
import logging
import sys
import importlib
from irc.client import SimpleIRCClient
import numpy
import theano
from theano import tensor
from blocks.model import Model
import datastream
from paramsaveload import SaveLoadParams
from blocks.graph import ComputationGraph
logging.basicConfig(level='INFO')
logger = logging.getLogger(__name__)
class IRCClient(SimpleIRCClient):
def __init__(self, model, sample_temperature, server, port, nick, channels, saveload):
super(IRCClient, self).__init__()
out = model.out[:, -1, :] / numpy.float32(sample_temperature)
prob = tensor.nnet.softmax(out)
cg = ComputationGraph([prob])
assert(len(cg.inputs) == 1)
assert(cg.inputs[0].name == 'bytes')
# channel functions & state
chfun = {}
for ch in channels + ['']:
logger.info("Building theano function for channel '%s'"%ch)
state_vars = [theano.shared(v[0:1, :].zeros_like().eval(), v.name+'-'+ch)
for v, _ in model.states]
givens = [(v, x) for (v, _), x in zip(model.states, state_vars)]
updates= [(x, upd) for x, (_, upd) in zip(state_vars, model.states)]
pred = theano.function(inputs=cg.inputs, outputs=[prob],
givens=givens, updates=updates)
reset_states = theano.function(inputs=[], outputs=[],
updates=[(v, v.zeros_like()) for v in state_vars])
chfun[ch] = (pred, reset_states)
self.saveload = saveload
self.chfuns = chfun
self.chans = chans
self.nick = nick
self.server = None
def on_welcome(self, server, ev):
logger.info("Welcomed to " + repr(server))
for ch in self.chans:
if ch != '' and ch[0] == '#':
server.join(ch)
def on_join(self, server, ev):
self.server = server
def str2data(self, s):
return numpy.array([ord(x) for x in s], dtype='int16')[None, :]
def pred_until(self, pred_f, prob, delim='\n'):
s = ''
while True:
prob = prob / 1.00001
pred = numpy.random.multinomial(1, prob[0, :]).nonzero()[0][0].astype('int16')
s = s + chr(int(pred))
prob, = pred_f(pred[None, None])
if s[-1] == delim:
break
return s[:-1]
def privmsg(self, chan, msg):
if len(msg) > 500:
msg = 'blip bloup'
logger.info("%s >> %s" % (chan, msg))
self.server.privmsg(chan, msg.decode('utf-8', 'ignore'))
def on_pubmsg(self, server, ev):
chan = ev.target.encode('utf-8')
nick = ev.source.split('!')[0].encode('utf-8')
msg = ev.arguments[0].encode('utf-8')
logger.info("%s <%s> %s" % (chan, nick, msg))
s0 = nick+'\t'+msg
rep = None
if chan in self.chfuns:
pred_f, _ = self.chfuns[chan]
if s0[-2:] == '^I':
prob, = pred_f(self.str2data(s0[:-2]))
rep = s0[:-2] + self.pred_until(pred_f, prob)
rep = rep.split('\t', 1)[-1]
else:
# feed phrase to bot
prob, = pred_f(self.str2data(s0+'\n'))
if self.nick in msg:
self.pred_until(pred_f, prob, '\t')
prob, = pred_f(self.str2data(nick+': '))
rep = nick + ': ' + self.pred_until(pred_f, prob)
else:
logger.warn('Recieved message on unknown channel: %s'%chan)
if rep != None:
self.privmsg(chan, rep)
if __name__ == "__main__":
if len(sys.argv) < 2:
print >> sys.stderr, 'Usage: %s [options] config' % sys.argv[0]
sys.exit(1)
model_name = sys.argv[-1]
config = importlib.import_module('.%s' % model_name, 'config')
# Build model
logger.info('Building model...')
m = config.Model(config)
# Define the computation graph && load parameters
logger.info('Building computation graph...')
dump_path = 'params/%s-use_on_irc.pkl' % model_name
saveload = SaveLoadParams(path=dump_path,
model=Model(m.sgd_cost))
saveload.do_load()
# Build IRC client
server = 'clipper.ens.fr'
port = 6667
nick = 'frigo'
chans = ['#frigotest', '#courssysteme']
irc = IRCClient(model=m,
sample_temperature=config.sample_temperature,
server=server,
port=port,
nick=nick,
channels=chans,
saveload=saveload)
irc.connect(server, port, nick)
irc.reactor.process_forever()
# vim: set sts=4 ts=4 sw=4 tw=0 et :
