diff options
Diffstat (limited to 'reaktor/ircasy.py')
| -rw-r--r-- | reaktor/ircasy.py | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/reaktor/ircasy.py b/reaktor/ircasy.py new file mode 100644 index 0000000..38f202f --- /dev/null +++ b/reaktor/ircasy.py @@ -0,0 +1,205 @@ +#! /usr/bin/env python +# +# //Reaktor/IRC/asybot.py +# +from asynchat import async_chat as asychat +from asyncore import loop +from socket import AF_INET, SOCK_STREAM,gethostname +from signal import SIGALRM, signal, alarm +from datetime import datetime as date, timedelta +from time import sleep +from sys import exit +from re import split, search, match +from textwrap import TextWrapper + +import logging,logging.handlers + +# s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g -- removes color codes + + +class asybot(asychat): + def __init__(self, server, port, nickname, channels, realname=False, username=False, hostname=False, hammer_interval=10, alarm_timeout=300, kill_timeout=360, loglevel=logging.ERROR): + asychat.__init__(self) + #logger magic + self.log = logging.getLogger('asybot_' + nickname) + #hdlr = logging.handlers.SysLogHandler(facility=logging.handlers.SysLogHandler.LOG_DAEMON) + #formatter = logging.Formatter( '%(filename)s: %(levelname)s: %(message)s') + #hdlr.setFormatter(formatter) + #self.log.addHandler(hdlr) + logging.basicConfig(level = loglevel) + + self.nickname = nickname + + if realname: + self.realname = realname + else: + self.realname = nickname + + if username: + self.username = username + else: + self.username = nickname + + if hostname: + self.hostname = hostname + else: + self.hostname = nickname + + self.retry = True + self.server = server + self.port = port + self.channels = channels + self.data = '' + self.myterminator = '\r\n' + self.set_terminator(self.myterminator.encode()) + self.create_socket(AF_INET, SOCK_STREAM) + self.connect((self.server, self.port)) + self.wrapper = TextWrapper(subsequent_indent=" ",width=400) + + self.log.info('=> irc://%s@%s:%s/%s' % (self.nickname, self.server, self.port, self.channels)) + + # When we don't receive data for alarm_timeout seconds then issue a + # PING every hammer_interval seconds until kill_timeout seconds have + # passed without a message. Any incoming message will reset alarm. + self.alarm_timeout = alarm_timeout + self.hammer_interval = hammer_interval + self.kill_timeout = kill_timeout + try: + signal(SIGALRM, lambda signum, frame: self.alarm_handler()) + except Exception as e: + print('asybot: ' + str(e)) + self.reset_alarm() + + def reset_alarm(self): + self.last_activity = date.now() + alarm(self.alarm_timeout) + + def alarm_handler(self): + delta = date.now() - self.last_activity + if delta > timedelta(seconds=self.kill_timeout): + self.log.error('No data for %s. Giving up...' % delta) + self.handle_disconnect() + else: + self.log.error('No data for %s. PINGing server...' % delta) + self.push('PING :%s' % self.nickname) + alarm(self.hammer_interval) + + def collect_incoming_data(self, data): + try: + self.data += data.decode() + except Exception as e: + print('error decoding message: ' + str(e)); + print('current data: %s' % self.data); + print('received data: %s' % data); + print('trying to decode as latin1') + self.data += data.decode('latin1') + + def found_terminator(self): + self.log.debug('<< %s' % self.data) + + message = self.data + self.data = '' + try: + _, prefix, command, params, rest, _ = \ + split('^(?::(\S+)\s)?(\S+)((?:\s[^:]\S*)*)(?:\s:(.*))?$', message) + except Exception as e: + print("cannot split message :(\nmsg: %s"%message) + return + params = params.split(' ')[1:] + + if command == 'PING': + self.push('PONG :%s' % rest) + self.log.debug("Replying to servers PING with PONG :%s" %rest) + self.on_ping(prefix, command, params, rest) + + elif command == 'PRIVMSG': + self.on_privmsg(prefix, command, params, rest) + + elif command == 'INVITE': + self.on_invite(prefix, command, params, rest) + + elif command == 'KICK': + self.on_kick(prefix, command, params, rest) + + elif command == 'JOIN': + self.on_join(prefix, command, params, rest) + + elif command == '433': + # ERR_NICKNAMEINUSE, retry with another name + self.on_nickinuse(prefix, command, params, rest) + + elif command == '376': + self.on_welcome(prefix, command, params, rest) + + self.reset_alarm() + + def push(self, message): + try: + self.log.debug('>> %s' % message) + msg = (message + self.myterminator).encode() + self.log.debug('>> %s' % msg) + asychat.push(self, msg) + except: + pass + + def disconnect(self): + self.push('QUIT') + self.close() + + def reconnect(self): + if self.connected: + self.push('QUIT') + self.close() + self.create_socket(AF_INET, SOCK_STREAM) + self.connect((self.server, self.port)) + + def handle_connect(self): + self.push('NICK %s' % self.nickname) + self.push('USER %s %s %s :%s' % + (self.username, self.hostname, self.server, self.realname)) + + def handle_disconnect(self): + if self.retry: + self.reconnect() + else: + self.log.error('No retry set, giving up') + + def PRIVMSG(self, target, text): + for line in self.wrapper.wrap(text): + msg = 'PRIVMSG %s :%s' % (','.join(target), line) + self.log.info(msg) + self.push(msg) + sleep(1) + + def ME(self, target, text): + self.PRIVMSG(target, ('ACTION ' + text + '')) + + def on_welcome(self, prefix, command, params, rest): + self.push('JOIN %s' % ','.join(self.channels)) + + def on_kick(self, prefix, command, params, rest): + self.log.debug(params) + if params[-1] == self.nickname: + for chan in params[:-1]: + self.channels.remove(chan) + + def on_join(self, prefix, command, params, rest): + pass + + def on_ping(self, prefix, command, params, rest): + pass + + def on_privmsg(self, prefix, command, params, rest): + pass + + def on_invite(self, prefix, command, params, rest): + pass + + def on_nickinuse(self, prefix, command, params, rest): + regex = search('(\d+)$', self.nickname) + if regex: + theint = int(regex.group(0)) + self.nickname = self.nickname.strip(str(theint)) + str(theint + 1) + else: + self.nickname = self.nickname + '0' + self.handle_connect() |