From 6373abda0862359ddad91336040cfde5a252a64c Mon Sep 17 00:00:00 2001
From: lassulus <lassulus@googlemail.com>
Date: Mon, 13 Jan 2014 16:44:19 +0100
Subject: reaktor: refactor code for moar abstraction

---
 Reaktor/IRC/ircasy.py | 123 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100755 Reaktor/IRC/ircasy.py

(limited to 'Reaktor/IRC/ircasy.py')

diff --git a/Reaktor/IRC/ircasy.py b/Reaktor/IRC/ircasy.py
new file mode 100755
index 00000000..0a9465fd
--- /dev/null
+++ b/Reaktor/IRC/ircasy.py
@@ -0,0 +1,123 @@
+#! /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
+log = logging.getLogger('asybot')
+hdlr = logging.handlers.SysLogHandler(facility=logging.handlers.SysLogHandler.LOG_DAEMON)
+formatter = logging.Formatter( '%(filename)s: %(levelname)s: %(message)s')
+hdlr.setFormatter(formatter)
+log.addHandler(hdlr)
+logging.basicConfig(level = logging.INFO)
+
+# s/\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g -- removes color codes
+
+
+class asybot(asychat):
+  def __init__(self, server, port, channels, realname, nickname, username, hostname, ircname, hammer_interval, alarm_timeout, kill_timeout):
+    asychat.__init__(self)
+    self.server = server
+    self.port = port
+    self.channels = channels
+    self.realname = realname
+    self.nickname = nickname
+    self.username = username
+    self.hostname = hostname
+    self.ircname = ircname
+    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)
+
+    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
+    signal(SIGALRM, lambda signum, frame: self.alarm_handler())
+    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):
+      log.error('No data for %s.  Giving up...' % delta)
+      exit(2)
+    else:
+      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):
+    self.data += data.decode(encoding='UTF-8')
+
+  def found_terminator(self):
+    log.debug('<< %s' % self.data)
+
+    message = self.data
+    self.data = ''
+
+    _, prefix, command, params, rest, _ = \
+        split('^(?::(\S+)\s)?(\S+)((?:\s[^:]\S*)*)(?:\s:(.*))?$', message)
+    params = params.split(' ')[1:]
+
+    if command == 'PING':
+      self.push('PONG :%s' % rest)
+      log.debug("Replying to servers PING with PONG :%s" %rest)
+
+    elif command == 'PRIVMSG':
+      self.on_privmsg(prefix, command, params, rest)
+
+    elif command == '433':
+      # ERR_NICKNAMEINUSE, retry with another name
+      _, nickname, int, _ = split('^.*[^0-9]([0-9]+)$', self.nickname) \
+          if search('[0-9]$', self.nickname) \
+          else ['', self.nickname, 0, '']
+      self.nickname = nickname + str(int + 1)
+      self.handle_connect()
+
+    self.reset_alarm()
+
+  def push(self, message):
+    log.debug('>> %s' % message)
+    msg = (message + self.myterminator).encode()
+    log.debug('>> %s' % msg)
+    asychat.push(self, msg)
+
+  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))
+    self.push('JOIN %s' % ','.join(self.channels))
+
+  def on_privmsg(self, prefix, command, params, rest):
+    pass
+
+  def PRIVMSG(self, target, text):
+    for line in self.wrapper.wrap(text):
+      msg = 'PRIVMSG %s :%s' % (','.join(target), line)
+      log.info(msg)
+      self.push(msg)
+      sleep(1)
+
+  def ME(self, target, text):
+    self.PRIVMSG(target, ('
ACTION ' + text + '
'))
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