adding irc.py, the beginning of the irc framework

This commit is contained in:
Ryan Hitchman 2008-06-06 19:00:49 -06:00
parent 14010af147
commit ecea72f36c
1 changed files with 108 additions and 0 deletions

108
irc.py Normal file
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import thread, socket, asyncore, asynchat, sys, re
import Queue
queue = Queue.Queue
class crlf_tcp(asynchat.async_chat):
"Handles tcp connections that consist of lines ending with crlf"
def __init__(self, host, port):
asynchat.async_chat.__init__(self)
self.set_terminator('\r\n')
self.buffer = ""
self.obuffer = ""
self.oqueue = queue() #where we stick things that need to be sent
self.iqueue = queue() #where we stick things that were received
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.host = host
self.port = port
def run(self):
self.connect((self.host, self.port))
thread.start_new_thread(self.queue_read_loop,())
asyncore.loop()
def queue_read_loop(self):
#this is an attempt at making this thread-safe
#at least with this, only TWO things could be modifying the output
#buffer at the same time
while True:
line = self.oqueue.get()
print ">>> %r" % line
self.push(line.encode('utf-8')+'\r\n')
def collect_incoming_data(self, data):
self.buffer += data
def found_terminator(self):
line = self.buffer
# print repr(line)
self.iqueue.put(line.encode('utf-8'))
self.buffer = ''
irc_prefix_re = re.compile(r'(.*?) (.*?) (.*)')
irc_noprefix_re = re.compile(r'()(.*?) (.*)')
irc_param_re = re.compile(r'(?:^|(?<= ))(:.*|[^ ]*)')
irc_netmask_re = re.compile(r':?([^!@]*)!?([^@]*)@?(.*)')
class irc(object):
"handles the IRC protocol"
#see the docs/ folder for more information on the protocol
def __init__(self, network, nick, port=6667):
self.conn = crlf_tcp(network, port)
thread.start_new_thread(self.conn.run,())
self.out = queue() #responses from the server are placed here
# format: [rawline, (prefix, command, params),
# (nick, user, host), command, paramlist]
self.nick(nick)
self.cmd("USER", ["skybot v0.01", "0", "bot"])
thread.start_new_thread(self.parse_loop,())
def parse_loop(self):
while True:
msg = self.conn.iqueue.get()
if msg.startswith(":"): #has a prefix
prefix, command, params = irc_prefix_re.match(msg).groups()
else:
prefix, command, params = irc_noprefix_re.match(msg).groups()
nick, user, host = irc_netmask_re.match(prefix).groups()
paramlist = irc_param_re.findall(params)
self.out.put([msg, (prefix, command, params), (nick, user, host),
command, paramlist])
if command == "PING":
self.cmd("PONG", [params])
def nick(self, nick):
self.cmd("NICK", [nick])
def join(self, channel):
self.cmd("JOIN", [":"+channel])
def msg(self, target, text):
self.cmd("PRIVMSG", [target, ":"+text])
def cmd(self, command, params=None):
if params:
self.send(command+' '+' '.join(params))
else:
self.send(command)
def send(self, str):
self.conn.oqueue.put(str)
s = irc('irc.synirc.net', 'skybot')
s.join("#cobol")
def readlines(s):
for line in sys.stdin:
print line
s.msg('#cobol',line.rstrip())
thread.start_new_thread(readlines, (s,))
while True:
try:
print repr(s.out.get(timeout=2))
except Queue.Empty:
pass
except KeyboardInterrupt:
sys.exit()