plugins.py

   1 import twisted
   2 from twisted.python import log
   3
   4 from datetime import datetime
   5 import random, time, re, urllib
   6
   7 PREFIX = ','
   8
   9
  10 def handleMsg(bot, user, channel, msg):
  11     ignoreChannels = [bot.nickname, 'AUTH']
  12     if channel not in ignoreChannels:
  13         log.msg('handleMsg> %s/%s: %s' % (user, channel, msg))
  14
  15         rest = prefixMatch(msg, [PREFIX, bot.nickname + ':'])
  16         if rest is not None:
  17             # Run COMMAND
  18             commands = Commands(bot, user, channel)
  19             commands.run(rest)
  20
  21         # Run FILTERS
  22         filters = Filters(bot, user, channel)
  23         filters.run(msg)
  24
  25 def prefixMatch(string, prefixes):
  26     for prefix in prefixes:
  27         if string.startswith(prefix):
  28             return string[len(prefix):]
  29     else:
  30         return None
  31
  32 def soupify(url):
  33     from BeautifulSoup import BeautifulSoup
  34     import urllib2
  35     req = urllib2.Request(url, None, {'User-agent': 'mozilla'})
  36     contents = urllib2.urlopen(req).read()
  37     return BeautifulSoup(contents)
  38
  39 def urlTitle(url):
  40     soup = soupify(url)
  41     return soup.title.contents[0].encode('utf-8').strip()
  42
  43 def decorate(proxy, original):
  44     # as decorator 'overwrites' namespace with these proxy
  45     # functions, we need to make the introspecting code happy.
  46     proxy.__doc__  = original.__doc__
  47     return proxy
  48
  49 def limitFreq(secs, msg=None):
  50     """
  51     Limit the frequency of execution of the function to avoid IRC spamming
  52     """
  53     lastmsg = [None]
  54     def decorator(func):
  55         def proxy(self, arg=None):
  56             now = datetime.now()
  57             if lastmsg[0] is not None:
  58                 diff = now - lastmsg[0]
  59                 if diff.seconds < secs:
  60                     log.msg('too quick!')
  61                     if msg:
  62                         self.toUser(msg)
  63                     return
  64
  65             func(self, arg)
  66             lastmsg[0] = now
  67         return decorate(proxy, func)
  68
  69     return decorator
  70
  71 def admin(nicks):
  72     """
  73     Only admin listed in `nicks` can run this command. Silently fail otherwise.
  74     """
  75     def decorator(func):
  76         def proxy(self, *args, **kwargs):
  77             if self.user in nicks:
  78                 return func(self, *args, **kwargs)
  79             else:
  80                 log.msg('ADMIN: %s not authorized to run command %s' % (self.user, func.__name__))
  81
  82         return decorate(proxy, func)
  83     return decorator
  84
  85 class BotActions(object):
  86
  87     def __init__(self, bot):
  88         self.bot = bot
  89
  90     def toChannel(self, msg):
  91         self.bot.msg(self.channel, msg)
  92
  93     def toUser(self, msg):
  94         self.toChannel('%s: %s' % (self.user, msg))
  95
  96     def doAction(self, action):
  97         self.bot.me(self.channel, action)
  98
  99     def grep(self, msg, words):
 100         for word in words:
 101             if word in msg:
 102                 return True
 103         return False
 104
 105
 106 class Commands(BotActions):
 107
 108     def __init__(self, bot, user, channel):
 109         BotActions.__init__(self, bot)
 110         self.user = user
 111         self.channel = channel
 112
 113     def run(self, rest):
 114         parts = rest.split(None, 1)
 115         command = parts[0]
 116         args = parts[1:]
 117         try:
 118             cmdFunc = getattr(self, 'cmd_%s' % command)
 119         except AttributeError:
 120             log.msg('no such command: %s', command)
 121         else:
 122             cmdFunc(*args)
 123
 124     def cmd_ping(self, args=None):
 125         "respond to PING"
 126         self.toUser(args and 'PONG %s' % args or 'PONG')
 127     cmd_PING = cmd_ping
 128
 129     @admin(['srid'])
 130     def cmd_reload(self, args=None):
 131         "reload plugins.py (self)"
 132         import plugins
 133         try:
 134             reload(plugins)
 135         except Exception, e:
 136             self.toUser(e)
 137         else:
 138             self.toUser('reloaded')
 139     cmd_r = cmd_reload
 140
 141     @admin(['srid'])
 142     @limitFreq(15)
 143     def cmd_help(self, args=None):
 144         ignore = ('help', 'PING')
 145         for name, func, docstring in self:
 146             if name not in ignore and docstring is not None:
 147                 self.toChannel('%10s - %s' % (name, docstring))
 148
 149     # more useful commands
 150
 151     def cmd_eval(self, args=None):
 152         "evaluate a python expression"
 153         if args:
 154             from math import * # make math functions available to `eval`
 155             try:
 156                 result = eval(args)
 157             except SyntaxError, e:
 158                 self.toUser('wrong syntax')
 159             except Exception, e:
 160                 self.toUser(e)
 161             else:
 162                 self.toChannel(result)
 163     cmd_e = cmd_eval
 164
 165     def cmd_google(self, search_terms=None):
 166         # search the internet
 167         if search_terms:
 168             soup = soupify('http://www.google.com/search?' + urllib.urlencode({'q': search_terms}))
 169             firstLink = soup.find('a', attrs={'class': 'l'})['href'].encode('utf-8').strip()
 170             log.msg('google:', firstLink)
 171             self.toChannel(firstLink)
 172     cmd_g = cmd_google
 173
 174     @admin(['srid'])
 175     def cmd_join(self, channel=None):
 176         if channel:
 177             self.bot.join(channel)
 178
 179     @admin(['srid'])
 180     def cmd_leave(self, channel=None):
 181         if channel:
 182             self.bot.leave(channel)
 183
 184     @admin(['srid'])
 185     def cmd_do(self, args):
 186         # perform an action in a channel
 187         # > ,do #foo is bored
 188         channel, action = args.split(None, 1)
 189         self.bot.me(channel, action)
 190
 191     def __iter__(self):
 192         "Iterate over all commands (minus their aliases)"
 193         cmdMap = {}
 194         for attr in dir(self):
 195             if attr.startswith('cmd_'):
 196                 func = getattr(self, attr)
 197                 name = attr[len('cmd_'):]
 198                 if func in cmdMap:
 199                     # find and overwrite the alias.
 200                     # the name of an alias is shorter than the name of the original version.
 201                     if len(cmdMap[func]) < len(name):
 202                         cmdMap[func] = name
 203                 else:
 204                     cmdMap[func] = name
 205
 206         for func, name in cmdMap.items():
 207             yield name, func, func.__doc__
 208
 209
 210 class Filters(BotActions):
 211
 212     def __init__(self, bot, user, channel):
 213         BotActions.__init__(self, bot)
 214         self.user = user
 215         self.channel = channel
 216
 217     def run(self, msg):
 218         for attr in dir(self):
 219             if attr.startswith('filter_'):
 220                 filter = getattr(self, attr)
 221                 filter(msg)
 222
 223     def respondWisely(self, msg, for_words, with_responses, one_for_every=1):
 224         random.seed(time.time())
 225         if self.grep(msg, for_words):
 226             if random.choice(range(one_for_every)) == 0:
 227                 self.toChannel(random.choice(with_responses))
 228
 229     def filter_obscene(self, msg):
 230         words = ['fuck', 'f**k', 'bitch', 'cunt', 'tits']
 231         quotes = [
 232             'The rate at which a person can mature is directly proportional to the embarrassment he can tolerate.',
 233             'To make mistakes is human; to stumble is commonplace; to be able to laugh at yourself is maturity.',
 234             'It is the province of knowledge to speak and it is the privilege of wisdom to listen.',
 235             'Some folks are wise and some otherwise.',
 236             'The wise man doesn\'t give the right answers, he poses the right questions.',
 237             'There are many who know many things, yet are lacking in wisdom.',
 238             'Wise men hear and see as little children do.',
 239             'Speech both conceals and reveals the thoughts of men',
 240             'Few people know how to take a walk. The qualifications are endurance, plain clothes, old shoes, an eye for nature, good humor, vast curiosity, good speech, good silence and nothing too much.',
 241             'The trouble with her is that she lacks the power of conversation but not the power of speech.',
 242             'Speak when you are angry - and you\'ll make the best speech you\'ll ever regret.',
 243             'Speech is human, silence is divine, yet also brutish and dead: therefore we must learn both arts.',
 244             'We must have reasons for speech but we need none for silence',
 245             'It usually takes more than three weeks to prepare a good impromptu speech.',
 246             'Men use thought only as authority for their injustice, and employ speech only to conceal their thoughts',
 247             'Much talking is the cause of danger. Silence is the means of avoiding misfortune. The talkative parrot is shut up in a cage. Other birds, without speech, fly freely about.',
 248             'Silence is also speech',
 249             'Speak properly, and in as few words as you can, but always plainly; for the end of speech is not ostentation, but to be understood.',
 250             ]
 251
 252         self.respondWisely(msg, words, quotes)
 253
 254     def filter_hatred(self, msg):
 255         words = ['hate', 'suck', 'bad']
 256         quotes = [
 257             'The first reaction to truth is hatred',
 258             'Hatred does not cease by hatred, but only by love; this is the eternal rule.',
 259             'Hatred is settled anger',
 260             'I love humanity but I hate people.',
 261             'Let them hate, so long as they fear.',
 262             'What we need is hatred. From it our ideas are born.',
 263             ]
 264
 265         self.respondWisely(msg, words, quotes, 3)
 266
 267     def filter_m8ball(self, msg):
 268         # This list is taken from fsbot@emacs (type ',dl m8ball')
 269         answers = [
 270             "Yes", "No", "Definitely", "Of course not!", "Highly likely.",
 271             "Ask yourself, do you really want to know?",
 272             "I'm telling you, you don't want to know.",
 273             "mu!"
 274             ]
 275
 276         self.respondWisely(msg, ['??'], answers)
 277
 278     def filter_random(self, msg):
 279         random.seed(time.time())
 280         if random.choice(range(100)) == 0:
 281             self.doAction(
 282                 random.choice([
 283                         'looks around nervously',
 284                         ]))
 285
 286     _filter_links_url = re.compile('.*(https?://[^ ]*).*')
 287     def filter_links(self, msg):
 288         "Show <title> in channel"
 289         match = self._filter_links_url.match(msg)
 290         if match:
 291             self.toChannel('Title: %s' % urlTitle(match.group(1)))
 292