erebus.py

   1 #!/usr/bin/python
   2 # vim: fileencoding=utf-8
   3
   4 # Erebus IRC bot - Author: John Runyon
   5 # main startup code
   6
   7 from __future__ import print_function
   8
   9 import os, sys, select, MySQLdb, MySQLdb.cursors, time, random, gc
  10 import bot, config, ctlmod
  11
  12 class Erebus(object): #singleton to pass around
  13         APIVERSION = 0
  14         RELEASE = 0
  15
  16         bots = {}
  17         fds = {}
  18         numhandlers = {}
  19         msghandlers = {}
  20         chanhandlers = {}
  21         users = {}
  22         chans = {}
  23
  24         class User(object):
  25                 def __init__(self, nick, auth=None):
  26                         self.nick = nick
  27                         self.auth = auth
  28                         self.checklevel()
  29
  30                         self.chans = []
  31
  32                 def msg(self, *args, **kwargs):
  33                         main.randbot().msg(self, *args, **kwargs)
  34                 def slowmsg(self, *args, **kwargs):
  35                         main.randbot().slowmsg(self, *args, **kwargs)
  36                 def fastmsg(self, *args, **kwargs):
  37                         main.randbot().fastmsg(self, *args, **kwargs)
  38
  39                 def isauthed(self):
  40                         return self.auth is not None
  41
  42                 def authed(self, auth):
  43                         if auth == '0': self.auth = None
  44                         else: self.auth = auth.lower()
  45                         self.checklevel()
  46
  47                 def checklevel(self):
  48                         if self.auth is None:
  49                                 self.glevel = -1
  50                         else:
  51                                 c = main.query("SELECT level FROM users WHERE auth = %s", (self.auth,))
  52                                 if c:
  53                                         row = c.fetchone()
  54                                         if row is not None:
  55                                                 self.glevel = row['level']
  56                                         else:
  57                                                 self.glevel = 0
  58                                 else:
  59                                         self.glevel = 0
  60                         return self.glevel
  61
  62                 def join(self, chan):
  63                         if chan not in self.chans: self.chans.append(chan)
  64                 def part(self, chan):
  65                         try:
  66                                 self.chans.remove(chan)
  67                         except: pass
  68                         return len(self.chans) == 0
  69                 def quit(self):
  70                         pass
  71                 def nickchange(self, newnick):
  72                         self.nick = newnick
  73
  74                 def __str__(self): return self.nick
  75                 def __repr__(self): return "<User %r (%d)>" % (self.nick, self.glevel)
  76
  77         class Channel(object):
  78                 def __init__(self, name, bot):
  79                         self.name = name
  80                         self.bot = bot
  81                         self.levels = {}
  82
  83                         self.users = []
  84                         self.voices = []
  85                         self.ops = []
  86
  87                         c = main.query("SELECT user, level FROM chusers WHERE chan = %s", (self.name,))
  88                         if c:
  89                                 row = c.fetchone()
  90                                 while row is not None:
  91                                         self.levels[row['user']] = row['level']
  92                                         row = c.fetchone()
  93
  94
  95                 def msg(self, *args, **kwargs):
  96                         self.bot.msg(self, *args, **kwargs)
  97                 def slowmsg(self, *args, **kwargs):
  98                         self.bot.slowmsg(self, *args, **kwargs)
  99                 def fastmsg(self, *args, **kwargs):
 100                         self.bot.fastmsg(self, *args, **kwargs)
 101
 102                 def levelof(self, auth):
 103                         if auth is None:
 104                                 return 0
 105                         auth = auth.lower()
 106                         if auth in self.levels:
 107                                 return self.levels[auth]
 108                         else:
 109                                 return 0
 110
 111                 def setlevel(self, auth, level, savetodb=True):
 112                         auth = auth.lower()
 113                         if savetodb:
 114                                 c = main.query("REPLACE INTO chusers (chan, user, level) VALUES (%s, %s, %s)", (self.name, auth, level))
 115                                 if c:
 116                                         self.levels[auth] = level
 117                                         return True
 118                                 else:
 119                                         return False
 120
 121                 def userjoin(self, user, level=None):
 122                         if user not in self.users: self.users.append(user)
 123                         if level == 'op' and user not in self.ops: self.ops.append(user)
 124                         if level == 'voice' and user not in self.voices: self.voices.append(user)
 125                 def userpart(self, user):
 126                         if user in self.ops: self.ops.remove(user)
 127                         if user in self.voices: self.voices.remove(user)
 128                         if user in self.users: self.users.remove(user)
 129
 130                 def userop(self, user):
 131                         if user in self.users and user not in self.ops: self.ops.append(user)
 132                 def uservoice(self, user):
 133                         if user in self.users and user not in self.voices: self.voices.append(user)
 134                 def userdeop(self, user):
 135                         if user in self.ops: self.ops.remove(user)
 136                 def userdevoice(self, user):
 137                         if user in self.voices: self.voices.remove(user)
 138
 139                 def __str__(self): return self.name
 140                 def __repr__(self): return "<Channel %r>" % (self.name)
 141
 142         def __init__(self, cfg):
 143                 self.mustquit = None
 144                 self.starttime = time.time()
 145                 self.cfg = cfg
 146                 self.trigger = cfg.trigger
 147                 if os.name == "posix":
 148                         self.potype = "poll"
 149                         self.po = select.poll()
 150                 else: # f.e. os.name == "nt" (Windows)
 151                         self.potype = "select"
 152                         self.fdlist = []
 153
 154         def query(self, *args, **kwargs):
 155                 if 'noretry' in kwargs:
 156                         noretry = kwargs['noretry']
 157                         del kwargs['noretry']
 158                 else:
 159                         noretry = False
 160
 161                 self.log("[SQL]", "?", "query(%s, %s)" % (', '.join([repr(i) for i in args]), ', '.join([str(key)+"="+repr(kwargs[key]) for key in kwargs])))
 162                 try:
 163                         curs = self.db.cursor()
 164                         res = curs.execute(*args, **kwargs)
 165                         if res:
 166                                 return curs
 167                         else:
 168                                 return res
 169                 except MySQLdb.MySQLError as e:
 170                         self.log("[SQL]", "!", "MySQL error! %r" % (e))
 171                         if not noretry:
 172                                 dbsetup()
 173                                 return self.query(*args, noretry=True, **kwargs)
 174                         else:
 175                                 raise e
 176
 177         def querycb(self, cb, *args, **kwargs):
 178                 def run_query():
 179                         cb(self.query(*args, **kwargs))
 180                 threading.Thread(target=run_query).start()
 181
 182         def newbot(self, nick, user, bind, authname, authpass, server, port, realname):
 183                 if bind is None: bind = ''
 184                 obj = bot.Bot(self, nick, user, bind, authname, authpass, server, port, realname)
 185                 self.bots[nick.lower()] = obj
 186
 187         def newfd(self, obj, fileno):
 188                 self.fds[fileno] = obj
 189                 if self.potype == "poll":
 190                         self.po.register(fileno, select.POLLIN)
 191                 elif self.potype == "select":
 192                         self.fdlist.append(fileno)
 193
 194         def bot(self, name): #get Bot() by name (nick)
 195                 return self.bots[name.lower()]
 196         def fd(self, fileno): #get Bot() by fd/fileno
 197                 return self.fds[fileno]
 198         def randbot(self): #get Bot() randomly
 199                 return self.bots[random.choice(list(self.bots.keys()))]
 200
 201         def user(self, _nick, justjoined=False, create=True):
 202                 nick = _nick.lower()
 203                 if nick in self.users:
 204                         return self.users[nick]
 205                 elif create:
 206                         user = self.User(_nick)
 207                         self.users[nick] = user
 208
 209                         if justjoined:
 210                                 self.randbot().conn.send("WHO %s n%%ant,1" % (nick))
 211
 212                         return user
 213                 else:
 214                         return None
 215         def channel(self, name): #get Channel() by name
 216                 if name.lower() in self.chans:
 217                         return self.chans[name.lower()]
 218                 else:
 219                         return None
 220
 221         def newchannel(self, bot, name):
 222                 chan = self.Channel(name.lower(), bot)
 223                 self.chans[name.lower()] = chan
 224                 return chan
 225
 226         def poll(self):
 227                 timeout_seconds = 30
 228                 if self.potype == "poll":
 229                         pollres = self.po.poll(timeout_seconds * 1000)
 230                         return [fd for (fd, ev) in pollres]
 231                 elif self.potype == "select":
 232                         return select.select(self.fdlist, [], [], timeout_seconds)[0]
 233
 234         def connectall(self):
 235                 for bot in self.bots.values():
 236                         if bot.conn.state == 0:
 237                                 bot.connect()
 238
 239         def module(self, name):
 240                 return ctlmod.modules[name]
 241
 242         def log(self, source, level, message):
 243                 print("%09.3f %s [%s] %s" % (time.time() % 100000, source, level, message))
 244
 245         def getuserbyauth(self, auth):
 246                 return [u for u in self.users.values() if u.auth == auth.lower()]
 247
 248         def getdb(self):
 249                 """Get a DB object. The object must be returned to the pool after us, using returndb()."""
 250                 return self.dbs.pop()
 251
 252         def returndb(self, db):
 253                 self.dbs.append(db)
 254
 255         #bind functions
 256         def hook(self, word, handler):
 257                 try:
 258                         self.msghandlers[word].append(handler)
 259                 except:
 260                         self.msghandlers[word] = [handler]
 261         def unhook(self, word, handler):
 262                 if word in self.msghandlers and handler in self.msghandlers[word]:
 263                         self.msghandlers[word].remove(handler)
 264         def hashook(self, word):
 265                 return word in self.msghandlers and len(self.msghandlers[word]) != 0
 266         def gethook(self, word):
 267                 return self.msghandlers[word]
 268
 269         def hooknum(self, word, handler):
 270                 try:
 271                         self.numhandlers[word].append(handler)
 272                 except:
 273                         self.numhandlers[word] = [handler]
 274         def unhooknum(self, word, handler):
 275                 if word in self.numhandlers and handler in self.numhandlers[word]:
 276                         self.numhandlers[word].remove(handler)
 277         def hasnumhook(self, word):
 278                 return word in self.numhandlers and len(self.numhandlers[word]) != 0
 279         def getnumhook(self, word):
 280                 return self.numhandlers[word]
 281
 282         def hookchan(self, chan, handler):
 283                 try:
 284                         self.chanhandlers[chan].append(handler)
 285                 except:
 286                         self.chanhandlers[chan] = [handler]
 287         def unhookchan(self, chan, handler):
 288                 if chan in self.chanhandlers and handler in self.chanhandlers[chan]:
 289                         self.chanhandlers[chan].remove(handler)
 290         def haschanhook(self, chan):
 291                 return chan in self.chanhandlers and len(self.chanhandlers[chan]) != 0
 292         def getchanhook(self, chan):
 293                 return self.chanhandlers[chan]
 294
 295
 296 def dbsetup():
 297         main.db = None
 298         main.dbs = []
 299         for i in range(cfg.get('erebus', 'num_db_connections', 2)-1):
 300                 main.dbs.append(MySQLdb.connect(host=cfg.dbhost, user=cfg.dbuser, passwd=cfg.dbpass, db=cfg.dbname, cursorclass=MySQLdb.cursors.DictCursor))
 301         main.db = MySQLdb.connect(host=cfg.dbhost, user=cfg.dbuser, passwd=cfg.dbpass, db=cfg.dbname, cursorclass=MySQLdb.cursors.DictCursor)
 302
 303 def setup():
 304         global cfg, main
 305
 306         cfg = config.Config('bot.config')
 307
 308         if cfg.getboolean('debug', 'gc'):
 309                 gc.set_debug(gc.DEBUG_LEAK)
 310
 311         pidfile = open(cfg.pidfile, 'w')
 312         pidfile.write(str(os.getpid()))
 313         pidfile.close()
 314
 315         main = Erebus(cfg)
 316         dbsetup()
 317
 318         autoloads = [mod for mod, yes in cfg.items('autoloads') if int(yes) == 1]
 319         for mod in autoloads:
 320                 ctlmod.load(main, mod)
 321
 322         c = main.query("SELECT nick, user, bind, authname, authpass FROM bots WHERE active = 1")
 323         if c:
 324                 rows = c.fetchall()
 325                 c.close()
 326                 for row in rows:
 327                         main.newbot(row['nick'], row['user'], row['bind'], row['authname'], row['authpass'], cfg.host, cfg.port, cfg.realname)
 328         main.connectall()
 329
 330 def loop():
 331         poready = main.poll()
 332         for fileno in poready:
 333                 for line in main.fd(fileno).getdata():
 334                         main.fd(fileno).parse(line)
 335         if main.mustquit is not None:
 336                 main.log('*', '!', 'Core exiting due to: %s' % (main.mustquit))
 337                 raise main.mustquit
 338
 339 if __name__ == '__main__':
 340         try: os.rename('logfile', 'oldlogs/%s' % (time.time()))
 341         except: pass
 342         sys.stdout = open('logfile', 'w', 1)
 343         sys.stderr = sys.stdout
 344         setup()
 345         while True: loop()